power: pm8921-charger: Add HTC variants of pm8921-charger, pm8921-bms
HTC kernel version: villeu-jb-crc-3.4.10-ae8b65e
Change-Id: I2a0f9fc8b80bbf4fee5bd2d840fcb86a59b0ab68
diff --git a/drivers/mfd/pm8921-core.c b/drivers/mfd/pm8921-core.c
index 088c756..6850fab 100644
--- a/drivers/mfd/pm8921-core.c
+++ b/drivers/mfd/pm8921-core.c
@@ -24,7 +24,11 @@
#include <linux/mfd/pm8xxx/pm8921.h>
#include <linux/mfd/pm8xxx/core.h>
#include <linux/mfd/pm8xxx/regulator.h>
+#ifdef CONFIG_MACH_HTC
+#include <linux/leds-pm8xxx-htc.h>
+#else
#include <linux/leds-pm8xxx.h>
+#endif
#define REG_HWREV 0x002 /* PMIC4 revision */
#define REG_HWREV_2 0x0E8 /* PMIC4 revision 2 */
diff --git a/drivers/misc/cable_detect_8xxx.c b/drivers/misc/cable_detect_8xxx.c
index 00ed513..209eb6e 100644
--- a/drivers/misc/cable_detect_8xxx.c
+++ b/drivers/misc/cable_detect_8xxx.c
@@ -41,7 +41,7 @@
#include "../video/msm/sii9234/TPI.h"
#endif
-#include "linux/mfd/pm8xxx/pm8921-charger.h"
+#include "linux/mfd/pm8xxx/pm8921-charger-htc.h"
static int vbus;
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index f84b527..bee4e19 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -54,8 +54,13 @@
obj-$(CONFIG_BATTERY_BQ27541) += bq27541_fuelgauger.o
obj-$(CONFIG_SMB137B_CHARGER) += smb137b.o
obj-$(CONFIG_PM8XXX_CCADC) += pm8xxx-ccadc.o
+ifeq ($(CONFIG_HTC_BATT_8960),y)
+obj-$(CONFIG_PM8921_BMS) += pm8921-bms-htc.o
+obj-$(CONFIG_PM8921_CHARGER) += pm8921-charger-htc.o
+else
obj-$(CONFIG_PM8921_BMS) += pm8921-bms.o
obj-$(CONFIG_PM8921_CHARGER) += pm8921-charger.o
+endif
obj-$(CONFIG_LTC4088_CHARGER) += ltc4088-charger.o
obj-$(CONFIG_CHARGER_SMB347) += smb347-charger.o
obj-$(CONFIG_BATTERY_BCL) += battery_current_limit.o
diff --git a/drivers/power/pm8921-bms-htc.c b/drivers/power/pm8921-bms-htc.c
new file mode 100644
index 0000000..65b6400
--- /dev/null
+++ b/drivers/power/pm8921-bms-htc.c
@@ -0,0 +1,2896 @@
+/* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+#define pr_fmt(fmt) "[BATT][BMS] " fmt
+#define pr_fmt_debug(fmt) "[BATT][BMS]%s: " fmt, __func__
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/errno.h>
+#include <linux/mfd/pm8xxx/pm8921-bms-htc.h>
+#include <linux/mfd/pm8xxx/pm8921-charger-htc.h>
+#include <linux/mfd/pm8xxx/core.h>
+#include <linux/mfd/pm8xxx/pm8xxx-adc.h>
+#include <linux/mfd/pm8xxx/ccadc.h>
+#include <linux/interrupt.h>
+#include <linux/bitops.h>
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <mach/board_htc.h>
+
+#ifdef CONFIG_HTC_BATT_8960
+#include "mach/htc_battery_cell.h"
+#endif
+
+#if defined(pr_debug)
+#undef pr_debug
+#endif
+#define pr_debug(fmt, ...) do { \
+ if (flag_enable_bms_chg_log) \
+ printk(KERN_INFO pr_fmt_debug(fmt), ##__VA_ARGS__); \
+ } while (0)
+static bool flag_enable_bms_chg_log;
+
+#define BMS_CONTROL 0x224
+#define BMS_S1_DELAY 0x225
+#define BMS_OUTPUT0 0x230
+#define BMS_OUTPUT1 0x231
+#define BMS_TOLERANCES 0x232
+#define BMS_TEST1 0x237
+
+#define ADC_ARB_SECP_CNTRL 0x190
+#define ADC_ARB_SECP_AMUX_CNTRL 0x191
+#define ADC_ARB_SECP_ANA_PARAM 0x192
+#define ADC_ARB_SECP_DIG_PARAM 0x193
+#define ADC_ARB_SECP_RSV 0x194
+#define ADC_ARB_SECP_DATA1 0x195
+#define ADC_ARB_SECP_DATA0 0x196
+
+#define ADC_ARB_BMS_CNTRL 0x18D
+#define AMUX_TRIM_2 0x322
+#define TEST_PROGRAM_REV 0x339
+
+#define OCV_UPDATE_STORAGE 0x105
+#define OCV_UPDATE_STORAGE_USE_MASK 0x0F
+
+enum pmic_bms_interrupts {
+ PM8921_BMS_SBI_WRITE_OK,
+ PM8921_BMS_CC_THR,
+ PM8921_BMS_VSENSE_THR,
+ PM8921_BMS_VSENSE_FOR_R,
+ PM8921_BMS_OCV_FOR_R,
+ PM8921_BMS_GOOD_OCV,
+ PM8921_BMS_VSENSE_AVG,
+ PM_BMS_MAX_INTS,
+};
+
+struct pm8921_soc_params {
+ uint16_t last_good_ocv_raw;
+ int cc;
+
+ int last_good_ocv_uv;
+};
+
+struct pm8921_rbatt_params {
+ uint16_t ocv_for_rbatt_raw;
+ uint16_t vsense_for_rbatt_raw;
+ uint16_t vbatt_for_rbatt_raw;
+
+ int ocv_for_rbatt_uv;
+ int vsense_for_rbatt_uv;
+ int vbatt_for_rbatt_uv;
+};
+
+struct pm8921_bms_chip {
+ struct device *dev;
+ struct dentry *dent;
+ unsigned int r_sense;
+ unsigned int i_test;
+ unsigned int v_failure;
+ unsigned int fcc;
+ struct single_row_lut *fcc_temp_lut;
+ struct single_row_lut *fcc_sf_lut;
+ struct pc_temp_ocv_lut *pc_temp_ocv_lut;
+ struct sf_lut *pc_sf_lut;
+ struct sf_lut *rbatt_sf_lut;
+ int delta_rbatt_mohm;
+ struct work_struct calib_hkadc_work;
+ unsigned int revision;
+ unsigned int xoadc_v0625_usb_present;
+ unsigned int xoadc_v0625_usb_absent;
+ unsigned int xoadc_v0625;
+ unsigned int xoadc_v125;
+ unsigned int batt_temp_channel;
+ unsigned int vbat_channel;
+ unsigned int ref625mv_channel;
+ unsigned int ref1p25v_channel;
+ unsigned int batt_id_channel;
+ unsigned int pmic_bms_irq[PM_BMS_MAX_INTS];
+ DECLARE_BITMAP(enabled_irqs, PM_BMS_MAX_INTS);
+ struct mutex bms_output_lock;
+ spinlock_t bms_100_lock;
+ struct single_row_lut *adjusted_fcc_temp_lut;
+ unsigned int charging_began;
+ int start_percent;
+ int end_percent;
+
+ uint16_t ocv_reading_at_100;
+ int cc_reading_at_100;
+ int max_voltage_uv;
+ int batt_temp_suspend;
+ int soc_rbatt_suspend;
+ int default_rbatt_mohm;
+ unsigned int rconn_mohm;
+ int amux_2_trim_delta;
+ uint16_t prev_last_good_ocv_raw;
+ int usb_chg_plugged_ready;
+};
+
+static struct pm8921_bms_chip *the_chip;
+
+struct pm8921_bms_debug {
+ int rbatt;
+ int rbatt_sf;
+ int voltage_unusable_uv;
+ int pc_unusable;
+ int rc_pc;
+ int scalefactor;
+ int batt_temp;
+ int soc_rbatt;
+};
+static struct pm8921_bms_debug bms_dbg;
+
+#define DEFAULT_RBATT_MOHMS 128
+#define DEFAULT_OCV_MICROVOLTS 3900000
+#define DEFAULT_CHARGE_CYCLES 0
+
+static int last_usb_cal_delta_uv = 1800;
+module_param(last_usb_cal_delta_uv, int, 0644);
+
+static int last_chargecycles = DEFAULT_CHARGE_CYCLES;
+static int last_charge_increase;
+module_param(last_chargecycles, int, 0644);
+module_param(last_charge_increase, int, 0644);
+
+static int last_rbatt = -EINVAL;
+static int last_ocv_uv = -EINVAL;
+static int last_soc = -EINVAL;
+static int last_real_fcc_mah = -EINVAL;
+static int last_real_fcc_batt_temp = -EINVAL;
+
+static int bms_ops_set(const char *val, const struct kernel_param *kp)
+{
+ if (*(int *)kp->arg == -EINVAL)
+ return param_set_int(val, kp);
+ else
+ return 0;
+}
+
+static struct kernel_param_ops bms_param_ops = {
+ .set = bms_ops_set,
+ .get = param_get_int,
+};
+
+module_param_cb(last_rbatt, &bms_param_ops, &last_rbatt, 0644);
+module_param_cb(last_ocv_uv, &bms_param_ops, &last_ocv_uv, 0644);
+module_param_cb(last_soc, &bms_param_ops, &last_soc, 0644);
+
+static int bms_fake_battery = -EINVAL;
+module_param(bms_fake_battery, int, 0644);
+
+static int bms_start_percent;
+static int bms_start_ocv_uv;
+static int bms_start_cc_uah;
+static int bms_end_percent;
+static int bms_end_ocv_uv;
+static int bms_end_cc_uah;
+static int bms_discharge_percent;
+static int is_ocv_update_start;
+
+static int bms_ro_ops_set(const char *val, const struct kernel_param *kp)
+{
+ return -EINVAL;
+}
+
+static struct kernel_param_ops bms_ro_param_ops = {
+ .set = bms_ro_ops_set,
+ .get = param_get_int,
+};
+module_param_cb(bms_start_percent, &bms_ro_param_ops, &bms_start_percent, 0644);
+module_param_cb(bms_start_ocv_uv, &bms_ro_param_ops, &bms_start_ocv_uv, 0644);
+module_param_cb(bms_start_cc_uah, &bms_ro_param_ops, &bms_start_cc_uah, 0644);
+
+module_param_cb(bms_end_percent, &bms_ro_param_ops, &bms_end_percent, 0644);
+module_param_cb(bms_end_ocv_uv, &bms_ro_param_ops, &bms_end_ocv_uv, 0644);
+module_param_cb(bms_end_cc_uah, &bms_ro_param_ops, &bms_end_cc_uah, 0644);
+
+static int dump_cc_uah(void);
+
+static int interpolate_fcc(struct pm8921_bms_chip *chip, int batt_temp);
+static void readjust_fcc_table(void)
+{
+ struct single_row_lut *temp, *old;
+ int i, fcc, ratio;
+
+ if (!the_chip->fcc_temp_lut) {
+ pr_err("The static fcc lut table is NULL\n");
+ return;
+ }
+
+ temp = kzalloc(sizeof(struct single_row_lut), GFP_KERNEL);
+ if (!temp) {
+ pr_err("Cannot allocate memory for adjusted fcc table\n");
+ return;
+ }
+
+ fcc = interpolate_fcc(the_chip, last_real_fcc_batt_temp);
+
+ temp->cols = the_chip->fcc_temp_lut->cols;
+ for (i = 0; i < the_chip->fcc_temp_lut->cols; i++) {
+ temp->x[i] = the_chip->fcc_temp_lut->x[i];
+ ratio = div_u64(the_chip->fcc_temp_lut->y[i] * 1000, fcc);
+ temp->y[i] = (ratio * last_real_fcc_mah);
+ temp->y[i] /= 1000;
+ pr_debug("temp=%d, staticfcc=%d, adjfcc=%d, ratio=%d\n",
+ temp->x[i], the_chip->fcc_temp_lut->y[i],
+ temp->y[i], ratio);
+ }
+
+ old = the_chip->adjusted_fcc_temp_lut;
+ the_chip->adjusted_fcc_temp_lut = temp;
+ kfree(old);
+}
+
+static int bms_last_real_fcc_set(const char *val,
+ const struct kernel_param *kp)
+{
+ int rc = 0;
+
+ if (last_real_fcc_mah == -EINVAL)
+ rc = param_set_int(val, kp);
+ if (rc) {
+ pr_err("Failed to set last_real_fcc_mah rc=%d\n", rc);
+ return rc;
+ }
+ if (last_real_fcc_batt_temp != -EINVAL)
+ readjust_fcc_table();
+ return rc;
+}
+static struct kernel_param_ops bms_last_real_fcc_param_ops = {
+ .set = bms_last_real_fcc_set,
+ .get = param_get_int,
+};
+module_param_cb(last_real_fcc_mah, &bms_last_real_fcc_param_ops,
+ &last_real_fcc_mah, 0644);
+
+static int bms_last_real_fcc_batt_temp_set(const char *val,
+ const struct kernel_param *kp)
+{
+ int rc = 0;
+
+ if (last_real_fcc_batt_temp == -EINVAL)
+ rc = param_set_int(val, kp);
+ if (rc) {
+ pr_err("Failed to set last_real_fcc_batt_temp rc=%d\n", rc);
+ return rc;
+ }
+ if (last_real_fcc_mah != -EINVAL)
+ readjust_fcc_table();
+ return rc;
+}
+
+static struct kernel_param_ops bms_last_real_fcc_batt_temp_param_ops = {
+ .set = bms_last_real_fcc_batt_temp_set,
+ .get = param_get_int,
+};
+module_param_cb(last_real_fcc_batt_temp, &bms_last_real_fcc_batt_temp_param_ops,
+ &last_real_fcc_batt_temp, 0644);
+
+static int pm_bms_get_rt_status(struct pm8921_bms_chip *chip, int irq_id)
+{
+ return pm8xxx_read_irq_stat(chip->dev->parent,
+ chip->pmic_bms_irq[irq_id]);
+}
+
+static void pm8921_bms_enable_irq(struct pm8921_bms_chip *chip, int interrupt)
+{
+ if (!__test_and_set_bit(interrupt, chip->enabled_irqs)) {
+ dev_dbg(chip->dev, "%s %d\n", __func__,
+ chip->pmic_bms_irq[interrupt]);
+ enable_irq(chip->pmic_bms_irq[interrupt]);
+ }
+}
+
+static void pm8921_bms_disable_irq(struct pm8921_bms_chip *chip, int interrupt)
+{
+ if (__test_and_clear_bit(interrupt, chip->enabled_irqs)) {
+ pr_debug("%d\n", chip->pmic_bms_irq[interrupt]);
+ disable_irq_nosync(chip->pmic_bms_irq[interrupt]);
+ }
+}
+
+static int pm_bms_masked_write(struct pm8921_bms_chip *chip, u16 addr,
+ u8 mask, u8 val)
+{
+ int rc;
+ u8 reg;
+
+ rc = pm8xxx_readb(chip->dev->parent, addr, ®);
+ if (rc) {
+ pr_err("read failed addr = %03X, rc = %d\n", addr, rc);
+ return rc;
+ }
+ reg &= ~mask;
+ reg |= val & mask;
+ rc = pm8xxx_writeb(chip->dev->parent, addr, reg);
+ if (rc) {
+ pr_err("write failed addr = %03X, rc = %d\n", addr, rc);
+ return rc;
+ }
+ return 0;
+}
+
+static int usb_chg_plugged_in(void)
+{
+#if 0
+ union power_supply_propval ret = {0,};
+ static struct power_supply *psy;
+ if (psy == NULL) {
+ psy = power_supply_get_by_name("usb");
+ if (psy == NULL)
+ return 0;
+ }
+
+ if (psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &ret))
+ return 0;
+ return ret.intval;
+#endif
+ int rc = pm8921_is_usb_chg_plugged_in();
+ if (rc < 0) {
+ return 0;
+ }
+ the_chip->usb_chg_plugged_ready = 1;
+ return rc;
+}
+
+#define HOLD_OREG_DATA BIT(1)
+static int pm_bms_lock_output_data(struct pm8921_bms_chip *chip)
+{
+ int rc;
+
+ rc = pm_bms_masked_write(chip, BMS_CONTROL, HOLD_OREG_DATA,
+ HOLD_OREG_DATA);
+ if (rc) {
+ pr_err("couldnt lock bms output rc = %d\n", rc);
+ return rc;
+ }
+ return 0;
+}
+
+static int pm_bms_unlock_output_data(struct pm8921_bms_chip *chip)
+{
+ int rc;
+
+ rc = pm_bms_masked_write(chip, BMS_CONTROL, HOLD_OREG_DATA, 0);
+ if (rc) {
+ pr_err("fail to unlock BMS_CONTROL rc = %d\n", rc);
+ return rc;
+ }
+ return 0;
+}
+
+#define SELECT_OUTPUT_DATA 0x1C
+#define SELECT_OUTPUT_TYPE_SHIFT 2
+#define OCV_FOR_RBATT 0x0
+#define VSENSE_FOR_RBATT 0x1
+#define VBATT_FOR_RBATT 0x2
+#define CC_MSB 0x3
+#define CC_LSB 0x4
+#define LAST_GOOD_OCV_VALUE 0x5
+#define VSENSE_AVG 0x6
+#define VBATT_AVG 0x7
+
+static int pm_bms_read_output_data(struct pm8921_bms_chip *chip, int type,
+ int16_t *result)
+{
+ int rc;
+ u8 reg;
+
+ if (!result) {
+ pr_err("result pointer null\n");
+ return -EINVAL;
+ }
+ *result = 0;
+ if (type < OCV_FOR_RBATT || type > VBATT_AVG) {
+ pr_err("invalid type %d asked to read\n", type);
+ return -EINVAL;
+ }
+
+ rc = pm_bms_masked_write(chip, BMS_CONTROL, SELECT_OUTPUT_DATA,
+ type << SELECT_OUTPUT_TYPE_SHIFT);
+ if (rc) {
+ pr_err("fail to select %d type in BMS_CONTROL rc = %d\n",
+ type, rc);
+ return rc;
+ }
+
+ rc = pm8xxx_readb(chip->dev->parent, BMS_OUTPUT0, ®);
+ if (rc) {
+ pr_err("fail to read BMS_OUTPUT0 for type %d rc = %d\n",
+ type, rc);
+ return rc;
+ }
+ *result = reg;
+ rc = pm8xxx_readb(chip->dev->parent, BMS_OUTPUT1, ®);
+ if (rc) {
+ pr_err("fail to read BMS_OUTPUT1 for type %d rc = %d\n",
+ type, rc);
+ return rc;
+ }
+ *result |= reg << 8;
+ pr_debug("type %d result %x", type, *result);
+ return 0;
+}
+
+#define V_PER_BIT_MUL_FACTOR 97656
+#define V_PER_BIT_DIV_FACTOR 1000
+#define XOADC_INTRINSIC_OFFSET 0x6000
+static int xoadc_reading_to_microvolt(unsigned int a)
+{
+ if (a <= XOADC_INTRINSIC_OFFSET)
+ return 0;
+
+ return (a - XOADC_INTRINSIC_OFFSET)
+ * V_PER_BIT_MUL_FACTOR / V_PER_BIT_DIV_FACTOR;
+}
+
+#define XOADC_CALIB_UV 625000
+#define VBATT_MUL_FACTOR 3
+static int adjust_xo_vbatt_reading(struct pm8921_bms_chip *chip,
+ int usb_chg, unsigned int uv)
+{
+ s64 numerator, denominator;
+ int local_delta;
+
+ if (uv == 0)
+ return 0;
+
+
+ if (chip->xoadc_v0625 == 0 || chip->xoadc_v125 == 0) {
+ pr_debug("No cal yet return %d\n", VBATT_MUL_FACTOR * uv);
+ return VBATT_MUL_FACTOR * uv;
+ }
+
+ if (usb_chg)
+ local_delta = last_usb_cal_delta_uv;
+ else
+ local_delta = 0;
+
+ pr_debug("using delta = %d\n", local_delta);
+ numerator = ((s64)uv - chip->xoadc_v0625 - local_delta)
+ * XOADC_CALIB_UV;
+ denominator = (s64)chip->xoadc_v125 - chip->xoadc_v0625 - local_delta;
+ if (denominator == 0)
+ return uv * VBATT_MUL_FACTOR;
+ return (XOADC_CALIB_UV + local_delta + div_s64(numerator, denominator))
+ * VBATT_MUL_FACTOR;
+}
+
+#define CC_RESOLUTION_N_V1 1085069
+#define CC_RESOLUTION_D_V1 100000
+#define CC_RESOLUTION_N_V2 868056
+#define CC_RESOLUTION_D_V2 10000
+
+static s64 cc_to_microvolt_v1(s64 cc)
+{
+ return div_s64(cc * CC_RESOLUTION_N_V1, CC_RESOLUTION_D_V1);
+}
+
+static s64 cc_to_microvolt_v2(s64 cc)
+{
+ return div_s64(cc * CC_RESOLUTION_N_V2, CC_RESOLUTION_D_V2);
+}
+
+static s64 cc_to_microvolt(struct pm8921_bms_chip *chip, s64 cc)
+{
+ return (chip->revision < PM8XXX_REVISION_8921_2p0) ?
+ cc_to_microvolt_v1((s64)cc) :
+ cc_to_microvolt_v2((s64)cc);
+}
+
+#define CC_READING_TICKS 56
+#define SLEEP_CLK_HZ 32764
+#define SECONDS_PER_HOUR 3600
+static s64 ccmicrovolt_to_nvh(s64 cc_uv)
+{
+ return div_s64(cc_uv * CC_READING_TICKS * 1000,
+ SLEEP_CLK_HZ * SECONDS_PER_HOUR);
+}
+
+static int read_cc(struct pm8921_bms_chip *chip, int *result)
+{
+ int rc;
+ uint16_t msw, lsw;
+
+ rc = pm_bms_read_output_data(chip, CC_LSB, &lsw);
+ if (rc) {
+ pr_err("fail to read CC_LSB rc = %d\n", rc);
+ return rc;
+ }
+ rc = pm_bms_read_output_data(chip, CC_MSB, &msw);
+ if (rc) {
+ pr_err("fail to read CC_MSB rc = %d\n", rc);
+ return rc;
+ }
+ *result = msw << 16 | lsw;
+ pr_debug("msw = %04x lsw = %04x cc = %d\n", msw, lsw, *result);
+ return 0;
+}
+
+static int adjust_xo_vbatt_reading_for_mbg(struct pm8921_bms_chip *chip,
+ int result)
+{
+ int64_t numerator;
+ int64_t denominator;
+
+ if (chip->amux_2_trim_delta == 0)
+ return result;
+
+ numerator = (s64)result * 1000000;
+ denominator = (1000000 + (410 * (s64)chip->amux_2_trim_delta));
+ return div_s64(numerator, denominator);
+}
+
+static int convert_vbatt_raw_to_uv(struct pm8921_bms_chip *chip,
+ int usb_chg,
+ uint16_t reading, int *result)
+{
+ *result = xoadc_reading_to_microvolt(reading);
+ pr_debug("raw = %04x vbatt = %u\n", reading, *result);
+ *result = adjust_xo_vbatt_reading(chip, usb_chg, *result);
+ pr_debug("after adj vbatt = %u\n", *result);
+ *result = adjust_xo_vbatt_reading_for_mbg(chip, *result);
+ pr_debug("after mbg adj vbatt = %u\n", *result);
+ return 0;
+}
+
+static int convert_vsense_to_uv(struct pm8921_bms_chip *chip,
+ int16_t reading, int *result)
+{
+ *result = pm8xxx_ccadc_reading_to_microvolt(chip->revision, reading);
+ pr_debug("raw = %04x vsense = %d\n", reading, *result);
+ *result = pm8xxx_cc_adjust_for_gain(*result);
+ pr_debug("after adj vsense = %d\n", *result);
+ return 0;
+}
+
+static int read_vsense_avg(struct pm8921_bms_chip *chip, int *result)
+{
+ int rc;
+ int16_t reading;
+
+ rc = pm_bms_read_output_data(chip, VSENSE_AVG, &reading);
+ if (rc) {
+ pr_err("fail to read VSENSE_AVG rc = %d\n", rc);
+ return rc;
+ }
+
+ convert_vsense_to_uv(chip, reading, result);
+ return 0;
+}
+
+static int linear_interpolate(int y0, int x0, int y1, int x1, int x)
+{
+ if (y0 == y1 || x == x0)
+ return y0;
+ if (x1 == x0 || x == x1)
+ return y1;
+
+ return y0 + ((y1 - y0) * (x - x0) / (x1 - x0));
+}
+
+static int interpolate_single_lut(struct single_row_lut *lut, int x)
+{
+ int i, result;
+
+ if (x < lut->x[0]) {
+ pr_debug("x %d less than known range return y = %d lut = %pS\n",
+ x, lut->y[0], lut);
+ return lut->y[0];
+ }
+ if (x > lut->x[lut->cols - 1]) {
+ pr_debug("x %d more than known range return y = %d lut = %pS\n",
+ x, lut->y[lut->cols - 1], lut);
+ return lut->y[lut->cols - 1];
+ }
+
+ for (i = 0; i < lut->cols; i++)
+ if (x <= lut->x[i])
+ break;
+ if (x == lut->x[i]) {
+ result = lut->y[i];
+ } else {
+ result = linear_interpolate(
+ lut->y[i - 1],
+ lut->x[i - 1],
+ lut->y[i],
+ lut->x[i],
+ x);
+ }
+ return result;
+}
+
+static int interpolate_fcc(struct pm8921_bms_chip *chip, int batt_temp)
+{
+
+ batt_temp = batt_temp/10;
+ return interpolate_single_lut(chip->fcc_temp_lut, batt_temp);
+}
+
+static int interpolate_fcc_adjusted(struct pm8921_bms_chip *chip, int batt_temp)
+{
+
+ batt_temp = batt_temp/10;
+ return interpolate_single_lut(chip->adjusted_fcc_temp_lut, batt_temp);
+}
+
+static int interpolate_scalingfactor_fcc(struct pm8921_bms_chip *chip,
+ int cycles)
+{
+ if (chip->fcc_sf_lut)
+ return interpolate_single_lut(chip->fcc_sf_lut, cycles);
+ else
+ return 100;
+}
+
+static int interpolate_scalingfactor(struct pm8921_bms_chip *chip,
+ struct sf_lut *sf_lut,
+ int row_entry, int pc)
+{
+ int i, scalefactorrow1, scalefactorrow2, scalefactor;
+ int rows, cols;
+ int row1 = 0;
+ int row2 = 0;
+
+ if (!sf_lut)
+ return 100;
+
+ rows = sf_lut->rows;
+ cols = sf_lut->cols;
+ if (pc > sf_lut->percent[0]) {
+ pr_debug("pc %d greater than known pc ranges for sfd\n", pc);
+ row1 = 0;
+ row2 = 0;
+ }
+ if (pc < sf_lut->percent[rows - 1]) {
+ pr_debug("pc %d less than known pc ranges for sf", pc);
+ row1 = rows - 1;
+ row2 = rows - 1;
+ }
+ for (i = 0; i < rows; i++) {
+ if (pc == sf_lut->percent[i]) {
+ row1 = i;
+ row2 = i;
+ break;
+ }
+ if (pc > sf_lut->percent[i]) {
+ row1 = i - 1;
+ row2 = i;
+ break;
+ }
+ }
+
+ if (row_entry < sf_lut->row_entries[0])
+ row_entry = sf_lut->row_entries[0];
+ if (row_entry > sf_lut->row_entries[cols - 1])
+ row_entry = sf_lut->row_entries[cols - 1];
+
+ for (i = 0; i < cols; i++)
+ if (row_entry <= sf_lut->row_entries[i])
+ break;
+ if (row_entry == sf_lut->row_entries[i]) {
+ scalefactor = linear_interpolate(
+ sf_lut->sf[row1][i],
+ sf_lut->percent[row1],
+ sf_lut->sf[row2][i],
+ sf_lut->percent[row2],
+ pc);
+ return scalefactor;
+ }
+
+ scalefactorrow1 = linear_interpolate(
+ sf_lut->sf[row1][i - 1],
+ sf_lut->row_entries[i - 1],
+ sf_lut->sf[row1][i],
+ sf_lut->row_entries[i],
+ row_entry);
+
+ scalefactorrow2 = linear_interpolate(
+ sf_lut->sf[row2][i - 1],
+ sf_lut->row_entries[i - 1],
+ sf_lut->sf[row2][i],
+ sf_lut->row_entries[i],
+ row_entry);
+
+ scalefactor = linear_interpolate(
+ scalefactorrow1,
+ sf_lut->percent[row1],
+ scalefactorrow2,
+ sf_lut->percent[row2],
+ pc);
+
+ return scalefactor;
+}
+
+static int is_between(int left, int right, int value)
+{
+ if (left >= right && left >= value && value >= right)
+ return 1;
+ if (left <= right && left <= value && value <= right)
+ return 1;
+
+ return 0;
+}
+
+static int interpolate_pc(struct pm8921_bms_chip *chip,
+ int batt_temp, int ocv)
+{
+ int i, j, pcj, pcj_minus_one, pc;
+ int rows = chip->pc_temp_ocv_lut->rows;
+ int cols = chip->pc_temp_ocv_lut->cols;
+
+
+ batt_temp = batt_temp/10;
+
+ if (batt_temp < chip->pc_temp_ocv_lut->temp[0]) {
+ pr_debug("batt_temp %d < known temp range for pc\n", batt_temp);
+ batt_temp = chip->pc_temp_ocv_lut->temp[0];
+ }
+ if (batt_temp > chip->pc_temp_ocv_lut->temp[cols - 1]) {
+ pr_debug("batt_temp %d > known temp range for pc\n", batt_temp);
+ batt_temp = chip->pc_temp_ocv_lut->temp[cols - 1];
+ }
+
+ for (j = 0; j < cols; j++)
+ if (batt_temp <= chip->pc_temp_ocv_lut->temp[j])
+ break;
+ if (batt_temp == chip->pc_temp_ocv_lut->temp[j]) {
+
+ if (ocv >= chip->pc_temp_ocv_lut->ocv[0][j])
+ return chip->pc_temp_ocv_lut->percent[0];
+ if (ocv <= chip->pc_temp_ocv_lut->ocv[rows - 1][j])
+ return chip->pc_temp_ocv_lut->percent[rows - 1];
+ for (i = 0; i < rows; i++) {
+ if (ocv >= chip->pc_temp_ocv_lut->ocv[i][j]) {
+ if (ocv == chip->pc_temp_ocv_lut->ocv[i][j])
+ return
+ chip->pc_temp_ocv_lut->percent[i];
+ pc = linear_interpolate(
+ chip->pc_temp_ocv_lut->percent[i],
+ chip->pc_temp_ocv_lut->ocv[i][j],
+ chip->pc_temp_ocv_lut->percent[i - 1],
+ chip->pc_temp_ocv_lut->ocv[i - 1][j],
+ ocv);
+ return pc;
+ }
+ }
+ }
+
+ if (ocv >= chip->pc_temp_ocv_lut->ocv[0][j])
+ return chip->pc_temp_ocv_lut->percent[0];
+ if (ocv <= chip->pc_temp_ocv_lut->ocv[rows - 1][j - 1])
+ return chip->pc_temp_ocv_lut->percent[rows - 1];
+
+ pcj_minus_one = 0;
+ pcj = 0;
+ for (i = 0; i < rows-1; i++) {
+ if (pcj == 0
+ && is_between(chip->pc_temp_ocv_lut->ocv[i][j],
+ chip->pc_temp_ocv_lut->ocv[i+1][j], ocv)) {
+ pcj = linear_interpolate(
+ chip->pc_temp_ocv_lut->percent[i],
+ chip->pc_temp_ocv_lut->ocv[i][j],
+ chip->pc_temp_ocv_lut->percent[i + 1],
+ chip->pc_temp_ocv_lut->ocv[i+1][j],
+ ocv);
+ }
+
+ if (pcj_minus_one == 0
+ && is_between(chip->pc_temp_ocv_lut->ocv[i][j-1],
+ chip->pc_temp_ocv_lut->ocv[i+1][j-1], ocv)) {
+
+ pcj_minus_one = linear_interpolate(
+ chip->pc_temp_ocv_lut->percent[i],
+ chip->pc_temp_ocv_lut->ocv[i][j-1],
+ chip->pc_temp_ocv_lut->percent[i + 1],
+ chip->pc_temp_ocv_lut->ocv[i+1][j-1],
+ ocv);
+ }
+
+ if (pcj && pcj_minus_one) {
+ pc = linear_interpolate(
+ pcj_minus_one,
+ chip->pc_temp_ocv_lut->temp[j-1],
+ pcj,
+ chip->pc_temp_ocv_lut->temp[j],
+ batt_temp);
+ return pc;
+ }
+ }
+
+ if (pcj)
+ return pcj;
+
+ if (pcj_minus_one)
+ return pcj_minus_one;
+
+ pr_debug("%d ocv wasn't found for temp %d in the LUT returning 100%%",
+ ocv, batt_temp);
+ return 100;
+}
+
+#define BMS_MODE_BIT BIT(6)
+#define EN_VBAT_BIT BIT(5)
+#define OVERRIDE_MODE_DELAY_MS 20
+int pm8921_bms_get_simultaneous_battery_voltage_and_current(int *ibat_ua,
+ int *vbat_uv)
+{
+ int16_t vsense_raw;
+ int16_t vbat_raw;
+ int vsense_uv, usb_chg;
+
+ if (the_chip == NULL) {
+ pr_err("Called to early\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&the_chip->bms_output_lock);
+
+ pm8xxx_writeb(the_chip->dev->parent, BMS_S1_DELAY, 0x00);
+ pm_bms_masked_write(the_chip, BMS_CONTROL,
+ BMS_MODE_BIT | EN_VBAT_BIT, BMS_MODE_BIT | EN_VBAT_BIT);
+
+ msleep(OVERRIDE_MODE_DELAY_MS);
+
+ pm_bms_lock_output_data(the_chip);
+ pm_bms_read_output_data(the_chip, VSENSE_AVG, &vsense_raw);
+ pm_bms_read_output_data(the_chip, VBATT_AVG, &vbat_raw);
+ pm_bms_unlock_output_data(the_chip);
+ pm_bms_masked_write(the_chip, BMS_CONTROL,
+ BMS_MODE_BIT | EN_VBAT_BIT, 0);
+
+ pm8xxx_writeb(the_chip->dev->parent, BMS_S1_DELAY, 0x0B);
+
+ mutex_unlock(&the_chip->bms_output_lock);
+
+ usb_chg = usb_chg_plugged_in();
+ convert_vbatt_raw_to_uv(the_chip, usb_chg, vbat_raw, vbat_uv);
+ convert_vsense_to_uv(the_chip, vsense_raw, &vsense_uv);
+ *ibat_ua = vsense_uv * 1000 / (int)the_chip->r_sense;
+
+ pr_debug("vsense_raw = 0x%x vbat_raw = 0x%x"
+ " ibat_ua = %d vbat_uv = %d\n",
+ (uint16_t)vsense_raw, (uint16_t)vbat_raw,
+ *ibat_ua, *vbat_uv);
+ return 0;
+}
+EXPORT_SYMBOL(pm8921_bms_get_simultaneous_battery_voltage_and_current);
+
+static int read_rbatt_params_raw(struct pm8921_bms_chip *chip,
+ struct pm8921_rbatt_params *raw)
+{
+ int usb_chg;
+
+ mutex_lock(&chip->bms_output_lock);
+ pm_bms_lock_output_data(chip);
+
+ pm_bms_read_output_data(chip,
+ OCV_FOR_RBATT, &raw->ocv_for_rbatt_raw);
+ pm_bms_read_output_data(chip,
+ VBATT_FOR_RBATT, &raw->vbatt_for_rbatt_raw);
+ pm_bms_read_output_data(chip,
+ VSENSE_FOR_RBATT, &raw->vsense_for_rbatt_raw);
+
+ pm_bms_unlock_output_data(chip);
+ mutex_unlock(&chip->bms_output_lock);
+
+ usb_chg = usb_chg_plugged_in();
+ convert_vbatt_raw_to_uv(chip, usb_chg,
+ raw->vbatt_for_rbatt_raw, &raw->vbatt_for_rbatt_uv);
+ convert_vbatt_raw_to_uv(chip, usb_chg,
+ raw->ocv_for_rbatt_raw, &raw->ocv_for_rbatt_uv);
+ convert_vsense_to_uv(chip,
+ raw->vsense_for_rbatt_raw, &raw->vsense_for_rbatt_uv);
+
+ pr_debug("vbatt_for_rbatt_raw = 0x%x, vbatt_for_rbatt= %duV\n",
+ raw->vbatt_for_rbatt_raw, raw->vbatt_for_rbatt_uv);
+ pr_debug("ocv_for_rbatt_raw = 0x%x, ocv_for_rbatt= %duV\n",
+ raw->ocv_for_rbatt_raw, raw->ocv_for_rbatt_uv);
+ pr_debug("vsense_for_rbatt_raw = 0x%x, vsense_for_rbatt= %duV\n",
+ raw->vsense_for_rbatt_raw, raw->vsense_for_rbatt_uv);
+ return 0;
+}
+
+#define MBG_TRANSIENT_ERROR_RAW 51
+static void adjust_pon_ocv_raw(struct pm8921_bms_chip *chip,
+ struct pm8921_soc_params *raw)
+{
+ if (raw->last_good_ocv_raw >= MBG_TRANSIENT_ERROR_RAW)
+ raw->last_good_ocv_raw -= MBG_TRANSIENT_ERROR_RAW;
+}
+
+static int read_soc_params_raw(struct pm8921_bms_chip *chip,
+ struct pm8921_soc_params *raw)
+{
+ int usb_chg, rc;
+ uint16_t last_good_ocv_raw_ori = 0;
+ int last_good_ocv_uv_ori_uv = 0;
+ u8 ocv_updated_flag = 0;
+
+ rc = pm8xxx_readb(chip->dev->parent, OCV_UPDATE_STORAGE, &ocv_updated_flag);
+ if (rc) {
+ pr_err("%s: failed to read addr = %d, rc=%d\n",
+ __func__, OCV_UPDATE_STORAGE, rc);
+ } else {
+ ocv_updated_flag &= OCV_UPDATE_STORAGE_USE_MASK;
+ pr_debug("%s: OCV_UPDATE_STORAGE = 0x%x\n", __func__, ocv_updated_flag);
+ }
+
+ mutex_lock(&chip->bms_output_lock);
+ pm_bms_lock_output_data(chip);
+
+ pm_bms_read_output_data(chip,
+ LAST_GOOD_OCV_VALUE, &raw->last_good_ocv_raw);
+ read_cc(chip, &raw->cc);
+
+ pm_bms_unlock_output_data(chip);
+ mutex_unlock(&chip->bms_output_lock);
+
+ usb_chg = usb_chg_plugged_in();
+ pr_debug("%s: usb_chg=%d, usb_chg_plugged_ready=%d,"
+ "prev_last_good_ocv_raw=0x%x, last_good_ocv_raw=0x%x\n",
+ __func__, usb_chg, chip->usb_chg_plugged_ready,
+ chip->prev_last_good_ocv_raw, raw->last_good_ocv_raw);
+ if (chip->prev_last_good_ocv_raw == 0) {
+ if (chip->usb_chg_plugged_ready == 1)
+ chip->prev_last_good_ocv_raw = raw->last_good_ocv_raw;
+ last_good_ocv_raw_ori = raw->last_good_ocv_raw;
+ if (!ocv_updated_flag)
+ adjust_pon_ocv_raw(chip, raw);
+ else
+ pr_info("%s: Skip adjust_pon_ocv_raw due to ocv_updated_flag=0x%x\n",
+ __func__, ocv_updated_flag);
+ convert_vbatt_raw_to_uv(chip, usb_chg,
+ raw->last_good_ocv_raw, &raw->last_good_ocv_uv);
+ convert_vbatt_raw_to_uv(chip, usb_chg,
+ last_good_ocv_raw_ori, &last_good_ocv_uv_ori_uv);
+ last_ocv_uv = raw->last_good_ocv_uv;
+ pr_info("%s: last_good_ocv_raw/ori=0x%x/0x%x, last_good_ocv_uv/ori=%duV/%duV\n",
+ __func__, raw->last_good_ocv_raw, last_good_ocv_raw_ori,
+ raw->last_good_ocv_uv, last_good_ocv_uv_ori_uv);
+ } else if (chip->prev_last_good_ocv_raw != raw->last_good_ocv_raw) {
+ chip->prev_last_good_ocv_raw = raw->last_good_ocv_raw;
+ convert_vbatt_raw_to_uv(chip, usb_chg,
+ raw->last_good_ocv_raw, &raw->last_good_ocv_uv);
+ last_ocv_uv = raw->last_good_ocv_uv;
+ pm_bms_masked_write(chip, OCV_UPDATE_STORAGE,
+ OCV_UPDATE_STORAGE_USE_MASK, 0x1);
+ rc = pm8xxx_readb(chip->dev->parent, OCV_UPDATE_STORAGE, &ocv_updated_flag);
+ if (rc) {
+ pr_err("%s: failed to read addr = %d, rc=%d\n",
+ __func__, OCV_UPDATE_STORAGE, rc);
+ } else {
+ ocv_updated_flag &= OCV_UPDATE_STORAGE_USE_MASK;
+ }
+ pr_info("%s: last_good_ocv_raw/uv=0x%x/%duV, ocv_updated_flag=0x%x\n",
+ __func__, raw->last_good_ocv_raw, raw->last_good_ocv_uv,
+ ocv_updated_flag);
+ } else {
+ raw->last_good_ocv_uv = last_ocv_uv;
+ }
+
+ pr_debug("0p625 = %duV\n", chip->xoadc_v0625);
+ pr_debug("1p25 = %duV\n", chip->xoadc_v125);
+ pr_debug("last_good_ocv_raw= 0x%x, last_good_ocv_uv= %duV\n",
+ raw->last_good_ocv_raw, raw->last_good_ocv_uv);
+ pr_debug("cc_raw= 0x%x\n", raw->cc);
+ return 0;
+}
+
+static int get_rbatt(struct pm8921_bms_chip *chip, int soc_rbatt, int batt_temp)
+{
+ int rbatt, scalefactor;
+
+ rbatt = (last_rbatt < 0) ? chip->default_rbatt_mohm : last_rbatt;
+ pr_debug("rbatt before scaling = %d\n", rbatt);
+ if (chip->rbatt_sf_lut == NULL) {
+ pr_debug("RBATT = %d\n", rbatt);
+ return rbatt;
+ }
+
+
+ batt_temp = batt_temp / 10;
+ scalefactor = interpolate_scalingfactor(chip, chip->rbatt_sf_lut,
+ batt_temp, soc_rbatt);
+ bms_dbg.rbatt_sf = scalefactor;
+ bms_dbg.soc_rbatt = soc_rbatt;
+ pr_debug("rbatt sf = %d for batt_temp = %d, soc_rbatt = %d\n",
+ scalefactor, batt_temp, soc_rbatt);
+ rbatt = (rbatt * scalefactor) / 100;
+
+ rbatt += the_chip->rconn_mohm;
+ pr_debug("adding rconn_mohm = %d rbatt = %d\n",
+ the_chip->rconn_mohm, rbatt);
+
+ if (is_between(20, 10, soc_rbatt))
+ rbatt = rbatt
+ + ((20 - soc_rbatt) * chip->delta_rbatt_mohm) / 10;
+ else
+ if (is_between(10, 0, soc_rbatt))
+ rbatt = rbatt + chip->delta_rbatt_mohm;
+
+ pr_debug("RBATT = %d\n", rbatt);
+ return rbatt;
+}
+
+static int calculate_rbatt_resume(struct pm8921_bms_chip *chip,
+ struct pm8921_rbatt_params *raw)
+{
+ unsigned int r_batt;
+
+ if (raw->ocv_for_rbatt_uv <= 0
+ || raw->ocv_for_rbatt_uv <= raw->vbatt_for_rbatt_uv
+ || raw->vsense_for_rbatt_raw <= 0) {
+ pr_debug("rbatt readings unavailable ocv = %d, vbatt = %d,"
+ "vsen = %d\n",
+ raw->ocv_for_rbatt_uv,
+ raw->vbatt_for_rbatt_uv,
+ raw->vsense_for_rbatt_raw);
+ return -EINVAL;
+ }
+ r_batt = ((raw->ocv_for_rbatt_uv - raw->vbatt_for_rbatt_uv)
+ * chip->r_sense) / raw->vsense_for_rbatt_uv;
+ pr_debug("r_batt = %umilliOhms", r_batt);
+ return r_batt;
+}
+
+static int calculate_fcc_uah(struct pm8921_bms_chip *chip, int batt_temp,
+ int chargecycles)
+{
+ int initfcc, result, scalefactor = 0;
+
+ if (chip->adjusted_fcc_temp_lut == NULL) {
+ initfcc = interpolate_fcc(chip, batt_temp);
+
+ scalefactor = interpolate_scalingfactor_fcc(chip, chargecycles);
+
+
+ result = (initfcc * scalefactor * 1000) / 100;
+ pr_debug("fcc = %d uAh\n", result);
+ return result;
+ } else {
+ return 1000 * interpolate_fcc_adjusted(chip, batt_temp);
+ }
+}
+
+static int get_battery_uvolts(struct pm8921_bms_chip *chip, int *uvolts)
+{
+ int rc;
+ struct pm8xxx_adc_chan_result result;
+
+ rc = pm8xxx_adc_read(chip->vbat_channel, &result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ chip->vbat_channel, rc);
+ return rc;
+ }
+ pr_debug("mvolts phy = %lld meas = 0x%llx", result.physical,
+ result.measurement);
+ *uvolts = (int)result.physical;
+ return 0;
+}
+
+static int adc_based_ocv(struct pm8921_bms_chip *chip, int *ocv)
+{
+ int vbatt, rbatt, ibatt_ua, rc;
+
+ rc = get_battery_uvolts(chip, &vbatt);
+ if (rc) {
+ pr_err("failed to read vbatt from adc rc = %d\n", rc);
+ return rc;
+ }
+
+ rc = pm8921_bms_get_battery_current(&ibatt_ua);
+ if (rc) {
+ pr_err("failed to read batt current rc = %d\n", rc);
+ return rc;
+ }
+
+ rbatt = (last_rbatt < 0) ? chip->default_rbatt_mohm : last_rbatt;
+ *ocv = vbatt + (ibatt_ua * rbatt)/1000;
+ return 0;
+}
+
+static int calculate_pc(struct pm8921_bms_chip *chip, int ocv_uv, int batt_temp,
+ int chargecycles)
+{
+ int pc, scalefactor;
+
+ pc = interpolate_pc(chip, batt_temp, ocv_uv / 1000);
+ pr_debug("pc = %u for ocv = %dmicroVolts batt_temp = %d\n",
+ pc, ocv_uv, batt_temp);
+
+ scalefactor = interpolate_scalingfactor(chip,
+ chip->pc_sf_lut, chargecycles, pc);
+ pr_debug("scalefactor = %u batt_temp = %d\n", scalefactor, batt_temp);
+
+ bms_dbg.scalefactor = scalefactor;
+
+ pc = (pc * scalefactor) / 100;
+ return pc;
+}
+
+static void calculate_cc_uah(struct pm8921_bms_chip *chip, int cc, int *val)
+{
+ int64_t cc_voltage_uv, cc_nvh, cc_uah;
+
+ cc_voltage_uv = cc;
+ cc_voltage_uv -= chip->cc_reading_at_100;
+ pr_debug("cc = %d. after subtracting %d cc = %lld\n",
+ cc, chip->cc_reading_at_100,
+ cc_voltage_uv);
+ cc_voltage_uv = cc_to_microvolt(chip, cc_voltage_uv);
+ cc_voltage_uv = pm8xxx_cc_adjust_for_gain(cc_voltage_uv);
+ pr_debug("cc_voltage_uv = %lld microvolts\n", cc_voltage_uv);
+ cc_nvh = ccmicrovolt_to_nvh(cc_voltage_uv);
+ pr_debug("cc_nvh = %lld nano_volt_hour\n", cc_nvh);
+ cc_uah = div_s64(cc_nvh, chip->r_sense);
+ *val = cc_uah;
+}
+
+static int calculate_unusable_charge_uah(struct pm8921_bms_chip *chip,
+ int rbatt, int fcc_uah,
+ int batt_temp, int chargecycles)
+{
+ int voltage_unusable_uv, pc_unusable;
+
+
+ voltage_unusable_uv = (rbatt * chip->i_test)
+ + (chip->v_failure * 1000);
+ pc_unusable = calculate_pc(chip, voltage_unusable_uv,
+ batt_temp, chargecycles);
+ pr_debug("rbatt = %umilliOhms unusable_v =%d unusable_pc = %d\n",
+ rbatt, voltage_unusable_uv, pc_unusable);
+ bms_dbg.rbatt = rbatt;
+ bms_dbg.voltage_unusable_uv = voltage_unusable_uv;
+ bms_dbg.pc_unusable = pc_unusable;
+ return (fcc_uah * pc_unusable) / 100;
+}
+
+static int calculate_remaining_charge_uah(struct pm8921_bms_chip *chip,
+ struct pm8921_soc_params *raw,
+ int fcc_uah, int batt_temp,
+ int chargecycles)
+{
+ int ocv, pc;
+
+
+ ocv = 0;
+ if (chip->ocv_reading_at_100 != raw->last_good_ocv_raw) {
+ chip->ocv_reading_at_100 = 0;
+ chip->cc_reading_at_100 = 0;
+ ocv = raw->last_good_ocv_uv;
+ } else {
+ ocv = chip->max_voltage_uv;
+ }
+
+ if (ocv == 0) {
+ ocv = last_ocv_uv;
+ pr_debug("ocv not available using last_ocv_uv=%d\n", ocv);
+ }
+
+ pc = calculate_pc(chip, ocv, batt_temp, chargecycles);
+ bms_dbg.rc_pc = pc;
+ pr_debug("ocv = %d pc = %d\n", ocv, pc);
+ return (fcc_uah * pc) / 100;
+}
+
+static void calculate_soc_params(struct pm8921_bms_chip *chip,
+ struct pm8921_soc_params *raw,
+ int batt_temp, int chargecycles,
+ int *fcc_uah,
+ int *unusable_charge_uah,
+ int *remaining_charge_uah,
+ int *cc_uah,
+ int *rbatt)
+{
+ unsigned long flags;
+ int soc_rbatt;
+
+ *fcc_uah = calculate_fcc_uah(chip, batt_temp, chargecycles);
+ pr_debug("FCC = %uuAh batt_temp = %d, cycles = %d\n",
+ *fcc_uah, batt_temp, chargecycles);
+
+ spin_lock_irqsave(&chip->bms_100_lock, flags);
+
+ *remaining_charge_uah = calculate_remaining_charge_uah(chip, raw,
+ *fcc_uah, batt_temp, chargecycles);
+ pr_debug("RC = %uuAh\n", *remaining_charge_uah);
+
+
+ calculate_cc_uah(chip, raw->cc, cc_uah);
+ pr_debug("cc_uah = %duAh raw->cc = %x cc = %lld after subtracting %d\n",
+ *cc_uah, raw->cc,
+ (int64_t)raw->cc - chip->cc_reading_at_100,
+ chip->cc_reading_at_100);
+ spin_unlock_irqrestore(&chip->bms_100_lock, flags);
+
+ soc_rbatt = ((*remaining_charge_uah - *cc_uah) * 100) / *fcc_uah;
+ if (soc_rbatt < 0)
+ soc_rbatt = 0;
+ *rbatt = get_rbatt(chip, soc_rbatt, batt_temp);
+
+ *unusable_charge_uah = calculate_unusable_charge_uah(chip, *rbatt,
+ *fcc_uah, batt_temp, chargecycles);
+ pr_debug("UUC = %uuAh\n", *unusable_charge_uah);
+}
+
+static int calculate_real_fcc_uah(struct pm8921_bms_chip *chip,
+ struct pm8921_soc_params *raw,
+ int batt_temp, int chargecycles,
+ int *ret_fcc_uah)
+{
+ int fcc_uah, unusable_charge_uah;
+ int remaining_charge_uah;
+ int cc_uah;
+ int real_fcc_uah;
+ int rbatt;
+
+ calculate_soc_params(chip, raw, batt_temp, chargecycles,
+ &fcc_uah,
+ &unusable_charge_uah,
+ &remaining_charge_uah,
+ &cc_uah,
+ &rbatt);
+
+ real_fcc_uah = remaining_charge_uah - cc_uah;
+ *ret_fcc_uah = fcc_uah;
+ pr_debug("real_fcc = %d, RC = %d CC = %d fcc = %d\n",
+ real_fcc_uah, remaining_charge_uah, cc_uah, fcc_uah);
+ return real_fcc_uah;
+}
+static int calculate_state_of_charge(struct pm8921_bms_chip *chip,
+ struct pm8921_soc_params *raw,
+ int batt_temp, int chargecycles, int verbol)
+{
+ int remaining_usable_charge_uah, fcc_uah, unusable_charge_uah;
+ int remaining_charge_uah, soc, soc_remainder = 0;
+ int update_userspace = 1;
+ int cc_uah;
+ int rbatt;
+
+ calculate_soc_params(chip, raw, batt_temp, chargecycles,
+ &fcc_uah,
+ &unusable_charge_uah,
+ &remaining_charge_uah,
+ &cc_uah,
+ &rbatt);
+ bms_dbg.batt_temp = batt_temp;
+
+
+ remaining_usable_charge_uah = remaining_charge_uah
+ - cc_uah
+ - unusable_charge_uah;
+
+ pr_debug("RUC = %duAh\n", remaining_usable_charge_uah);
+ if (fcc_uah - unusable_charge_uah <= 0) {
+ pr_warn("FCC = %duAh, UUC = %duAh forcing soc = 0\n",
+ fcc_uah, unusable_charge_uah);
+ soc = 0;
+ } else {
+ soc = (remaining_usable_charge_uah * 100)
+ / (fcc_uah - unusable_charge_uah);
+ soc_remainder = (remaining_usable_charge_uah * 100)
+ % (fcc_uah - unusable_charge_uah);
+
+ if (soc >= 0 && soc_remainder > 0)
+ soc += 1;
+ }
+
+ if (verbol) {
+ pr_info("FCC=%d,UC=%d,RC=%d,CC=%d,RUC=%d,SOC=%d,SOC_R=%d,"
+ "start_percent=%d,end_percent=%d,"
+ "rbatt=%d,rbatt_sf=%d,batt_temp=%d,soc_rbatt=%d,last_rbatt=%d,"
+ "V_unusable_uv=%d,pc_unusable=%d,rc_pc=%d,scalefactor=%d\n",
+ fcc_uah, unusable_charge_uah, remaining_charge_uah,
+ cc_uah, remaining_usable_charge_uah, soc, soc_remainder,
+ the_chip->start_percent, the_chip->end_percent,
+ bms_dbg.rbatt, bms_dbg.rbatt_sf, bms_dbg.batt_temp,
+ bms_dbg.soc_rbatt, last_rbatt, bms_dbg.voltage_unusable_uv,
+ bms_dbg.pc_unusable, bms_dbg.rc_pc, bms_dbg.scalefactor);
+ }
+
+ if (soc > 100)
+ soc = 100;
+ pr_debug("SOC = %u%%\n", soc);
+
+ if (bms_fake_battery != -EINVAL) {
+ pr_debug("Returning Fake SOC = %d%%\n", bms_fake_battery);
+ return bms_fake_battery;
+ }
+
+ if (soc < 0) {
+ pr_err("bad rem_usb_chg = %d rem_chg %d,"
+ "cc_uah %d, unusb_chg %d\n",
+ remaining_usable_charge_uah,
+ remaining_charge_uah,
+ cc_uah, unusable_charge_uah);
+
+ pr_err("for bad rem_usb_chg last_ocv_uv = %d"
+ "chargecycles = %d, batt_temp = %d"
+ "fcc = %d soc =%d\n",
+ last_ocv_uv, chargecycles, batt_temp,
+ fcc_uah, soc);
+ update_userspace = 0;
+ soc = 0;
+ }
+
+ if (last_soc == -EINVAL || soc <= last_soc) {
+ last_soc = update_userspace ? soc : last_soc;
+ return soc;
+ }
+
+ if (the_chip->start_percent != -EINVAL) {
+ last_soc = soc;
+ } else {
+ pr_info("soc = %d reporting last_soc = %d\n", soc, last_soc);
+ soc = last_soc;
+ }
+
+
+ return soc;
+}
+
+#define MIN_DELTA_625_UV 1000
+static void calib_hkadc(struct pm8921_bms_chip *chip)
+{
+ int voltage, rc;
+ struct pm8xxx_adc_chan_result result;
+ int usb_chg;
+ int this_delta;
+
+ rc = pm8xxx_adc_read(the_chip->ref1p25v_channel, &result);
+ if (rc) {
+ pr_err("ADC failed for 1.25volts rc = %d\n", rc);
+ return;
+ }
+ voltage = xoadc_reading_to_microvolt(result.adc_code);
+
+ pr_debug("result 1.25v = 0x%x, voltage = %duV adc_meas = %lld\n",
+ result.adc_code, voltage, result.measurement);
+
+ chip->xoadc_v125 = voltage;
+
+ rc = pm8xxx_adc_read(the_chip->ref625mv_channel, &result);
+ if (rc) {
+ pr_err("ADC failed for 1.25volts rc = %d\n", rc);
+ return;
+ }
+ voltage = xoadc_reading_to_microvolt(result.adc_code);
+
+ usb_chg = usb_chg_plugged_in();
+ pr_debug("result 0.625V = 0x%x, voltage = %duV adc_meas = %lld "
+ "usb_chg = %d\n",
+ result.adc_code, voltage, result.measurement,
+ usb_chg);
+
+ if (usb_chg)
+ chip->xoadc_v0625_usb_present = voltage;
+ else
+ chip->xoadc_v0625_usb_absent = voltage;
+
+ chip->xoadc_v0625 = voltage;
+ if (chip->xoadc_v0625_usb_present && chip->xoadc_v0625_usb_absent) {
+ this_delta = chip->xoadc_v0625_usb_present
+ - chip->xoadc_v0625_usb_absent;
+ pr_debug("this_delta= %duV\n", this_delta);
+ if (this_delta > MIN_DELTA_625_UV)
+ last_usb_cal_delta_uv = this_delta;
+ pr_debug("625V_present= %d, 625V_absent= %d, delta = %duV\n",
+ chip->xoadc_v0625_usb_present,
+ chip->xoadc_v0625_usb_absent,
+ last_usb_cal_delta_uv);
+ }
+}
+
+static void calibrate_hkadc_work(struct work_struct *work)
+{
+ struct pm8921_bms_chip *chip = container_of(work,
+ struct pm8921_bms_chip, calib_hkadc_work);
+
+ calib_hkadc(chip);
+}
+
+void pm8921_bms_calibrate_hkadc(void)
+{
+ schedule_work(&the_chip->calib_hkadc_work);
+}
+
+int pm8921_bms_get_vsense_avg(int *result)
+{
+ int rc = -EINVAL;
+
+ if (the_chip) {
+ mutex_lock(&the_chip->bms_output_lock);
+ pm_bms_lock_output_data(the_chip);
+ rc = read_vsense_avg(the_chip, result);
+ pm_bms_unlock_output_data(the_chip);
+ mutex_unlock(&the_chip->bms_output_lock);
+ } else
+ pr_err("called before initialization\n");
+ return rc;
+}
+EXPORT_SYMBOL(pm8921_bms_get_vsense_avg);
+
+int pm8921_bms_get_battery_current(int *result_ua)
+{
+ int vsense;
+
+ if (!the_chip) {
+ pr_err("called before initialization\n");
+ return -EINVAL;
+ }
+ if (the_chip->r_sense == 0) {
+ pr_err("r_sense is zero\n");
+ return -EINVAL;
+ }
+
+ mutex_lock(&the_chip->bms_output_lock);
+ pm_bms_lock_output_data(the_chip);
+ read_vsense_avg(the_chip, &vsense);
+ pm_bms_unlock_output_data(the_chip);
+ mutex_unlock(&the_chip->bms_output_lock);
+ pr_debug("vsense=%duV\n", vsense);
+
+ *result_ua = vsense * 1000 / (int)the_chip->r_sense;
+ pr_debug("ibat=%duA\n", *result_ua);
+ return 0;
+}
+EXPORT_SYMBOL(pm8921_bms_get_battery_current);
+
+int pm8921_bms_get_percent_charge(void)
+{
+ int batt_temp, rc;
+ struct pm8xxx_adc_chan_result result;
+ struct pm8921_soc_params raw;
+
+ if (!the_chip) {
+ pr_err("called before initialization\n");
+ return -EINVAL;
+ }
+
+ rc = pm8xxx_adc_read(the_chip->batt_temp_channel, &result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ the_chip->batt_temp_channel, rc);
+ return rc;
+ }
+ pr_debug("batt_temp phy = %lld meas = 0x%llx", result.physical,
+ result.measurement);
+ batt_temp = (int)result.physical;
+
+ read_soc_params_raw(the_chip, &raw);
+
+ return calculate_state_of_charge(the_chip, &raw,
+ batt_temp, last_chargecycles, 0);
+}
+EXPORT_SYMBOL_GPL(pm8921_bms_get_percent_charge);
+
+int pm8921_bms_get_rbatt(void)
+{
+ int batt_temp, rc;
+ struct pm8xxx_adc_chan_result result;
+ struct pm8921_soc_params raw;
+ int fcc_uah;
+ int unusable_charge_uah;
+ int remaining_charge_uah;
+ int cc_uah;
+ int rbatt;
+
+ if (!the_chip) {
+ pr_err("called before initialization\n");
+ return -EINVAL;
+ }
+
+ rc = pm8xxx_adc_read(the_chip->batt_temp_channel, &result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ the_chip->batt_temp_channel, rc);
+ return rc;
+ }
+ pr_debug("batt_temp phy = %lld meas = 0x%llx\n", result.physical,
+ result.measurement);
+ batt_temp = (int)result.physical;
+
+ read_soc_params_raw(the_chip, &raw);
+
+ calculate_soc_params(the_chip, &raw, batt_temp, last_chargecycles,
+ &fcc_uah,
+ &unusable_charge_uah,
+ &remaining_charge_uah,
+ &cc_uah,
+ &rbatt);
+ return rbatt;
+}
+EXPORT_SYMBOL_GPL(pm8921_bms_get_rbatt);
+
+int pm8921_bms_get_fcc(void)
+{
+ int batt_temp, rc;
+ struct pm8xxx_adc_chan_result result;
+
+ if (!the_chip) {
+ pr_err("called before initialization\n");
+ return -EINVAL;
+ }
+
+ rc = pm8xxx_adc_read(the_chip->batt_temp_channel, &result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ the_chip->batt_temp_channel, rc);
+ return rc;
+ }
+ pr_debug("batt_temp phy = %lld meas = 0x%llx", result.physical,
+ result.measurement);
+ batt_temp = (int)result.physical;
+ return calculate_fcc_uah(the_chip, batt_temp, last_chargecycles);
+}
+EXPORT_SYMBOL_GPL(pm8921_bms_get_fcc);
+
+#ifdef CONFIG_HTC_BATT_8960
+int pm8921_bms_get_batt_current(int *result)
+{
+ return pm8921_bms_get_battery_current(result);
+}
+
+int pm8921_bms_get_batt_soc(int *result)
+{
+ int batt_temp, rc;
+ struct pm8xxx_adc_chan_result temp_result;
+ struct pm8921_soc_params raw;
+
+ if (!the_chip) {
+ pr_err("called before initialization\n");
+ return -EINVAL;
+ }
+
+ rc = pm8xxx_adc_read(the_chip->batt_temp_channel, &temp_result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ the_chip->batt_temp_channel, rc);
+ return rc;
+ }
+ pr_debug("batt_temp phy = %lld meas = 0x%llx", temp_result.physical,
+ temp_result.measurement);
+ batt_temp = (int)temp_result.physical;
+
+ read_soc_params_raw(the_chip, &raw);
+
+ *result = calculate_state_of_charge(the_chip, &raw,
+ batt_temp, last_chargecycles, 1);
+ if (bms_discharge_percent &&
+ ((bms_discharge_percent - *result) >= 5)) {
+ pr_info("OCV can be update due to %d - %d >= 5\n",
+ bms_discharge_percent, *result);
+ bms_discharge_percent = 0;
+ pm8921_bms_start_ocv_updates();
+ }
+
+ return 0;
+}
+
+int pm8921_bms_get_batt_cc(int *result)
+{
+ *result = dump_cc_uah();
+
+ return 0;
+}
+#endif
+
+#define IBAT_TOL_MASK 0x0F
+#define OCV_TOL 0xF0
+#define OCV_TOL_MASK 0xF0
+#define IBAT_TOL_DEFAULT 0x03
+#define IBAT_TOL_NOCHG 0x0F
+#define OCV_TOL_DEFAULT 0x20
+#define OCV_TOL_NO_OCV 0x00
+int pm8921_bms_charging_began(void)
+{
+ int batt_temp, rc = 0;
+ struct pm8xxx_adc_chan_result result;
+ struct pm8921_soc_params raw;
+
+ if (!the_chip) {
+ pr_err("called before initialization\n");
+ return -EINVAL;
+ }
+
+ rc = pm8xxx_adc_read(the_chip->batt_temp_channel, &result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ the_chip->batt_temp_channel, rc);
+ return rc;
+ }
+ pr_debug("batt_temp phy = %lld meas = 0x%llx\n", result.physical,
+ result.measurement);
+ batt_temp = (int)result.physical;
+
+ read_soc_params_raw(the_chip, &raw);
+
+ the_chip->start_percent = calculate_state_of_charge(the_chip, &raw,
+ batt_temp, last_chargecycles, 0);
+ bms_start_percent = the_chip->start_percent;
+ bms_start_ocv_uv = raw.last_good_ocv_uv;
+ calculate_cc_uah(the_chip, raw.cc, &bms_start_cc_uah);
+ pm_bms_masked_write(the_chip, BMS_TOLERANCES,
+ IBAT_TOL_MASK, IBAT_TOL_DEFAULT);
+ pr_info("start_percent = %d%%\n", the_chip->start_percent);
+ bms_discharge_percent = 0;
+ pm8921_bms_stop_ocv_updates();
+
+ return rc;
+}
+EXPORT_SYMBOL_GPL(pm8921_bms_charging_began);
+
+#define DELTA_FCC_PERCENT 3
+#define MIN_START_PERCENT_FOR_LEARNING (-30)
+void pm8921_bms_charging_end(int is_battery_full)
+{
+ int batt_temp, rc;
+ struct pm8xxx_adc_chan_result result;
+ struct pm8921_soc_params raw;
+
+ if (the_chip == NULL)
+ return;
+
+ rc = pm8xxx_adc_read(the_chip->batt_temp_channel, &result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ the_chip->batt_temp_channel, rc);
+ return;
+ }
+ pr_debug("batt_temp phy = %lld meas = 0x%llx\n", result.physical,
+ result.measurement);
+ batt_temp = (int)result.physical;
+
+ read_soc_params_raw(the_chip, &raw);
+
+ calculate_cc_uah(the_chip, raw.cc, &bms_end_cc_uah);
+
+ if (is_battery_full
+ && the_chip->start_percent <= MIN_START_PERCENT_FOR_LEARNING) {
+ int fcc_uah, new_fcc_uah, delta_fcc_uah;
+
+ new_fcc_uah = calculate_real_fcc_uah(the_chip, &raw,
+ batt_temp, last_chargecycles,
+ &fcc_uah);
+ delta_fcc_uah = new_fcc_uah - fcc_uah;
+ if (delta_fcc_uah < 0)
+ delta_fcc_uah = -delta_fcc_uah;
+
+ if (delta_fcc_uah * 100 > (DELTA_FCC_PERCENT * fcc_uah)) {
+
+ if (new_fcc_uah > fcc_uah)
+ new_fcc_uah
+ = (fcc_uah +
+ (DELTA_FCC_PERCENT * fcc_uah) / 100);
+ else
+ new_fcc_uah
+ = (fcc_uah -
+ (DELTA_FCC_PERCENT * fcc_uah) / 100);
+ pr_info("delta_fcc=%d > %d percent of fcc=%d"
+ "restring it to %d\n",
+ delta_fcc_uah, DELTA_FCC_PERCENT,
+ fcc_uah, new_fcc_uah);
+ }
+ last_real_fcc_mah = new_fcc_uah/1000;
+ last_real_fcc_batt_temp = batt_temp;
+ readjust_fcc_table();
+ pr_info("learnt fcc = %d batt_temp = %d\n",
+ last_real_fcc_mah, last_real_fcc_batt_temp);
+ }
+
+
+ if (is_battery_full) {
+ unsigned long flags;
+ spin_lock_irqsave(&the_chip->bms_100_lock, flags);
+ the_chip->ocv_reading_at_100 = raw.last_good_ocv_raw;
+ the_chip->cc_reading_at_100 = raw.cc;
+ spin_unlock_irqrestore(&the_chip->bms_100_lock, flags);
+ pr_debug("EOC ocv_reading = 0x%x cc = %d\n",
+ the_chip->ocv_reading_at_100,
+ the_chip->cc_reading_at_100);
+ pm8921_bms_start_ocv_updates();
+ }
+
+ the_chip->end_percent = calculate_state_of_charge(the_chip, &raw,
+ batt_temp, last_chargecycles, 0);
+
+ bms_end_percent = the_chip->end_percent;
+ if (!is_battery_full)
+ bms_discharge_percent = the_chip->end_percent;
+ else
+ bms_discharge_percent = 0;
+ bms_end_ocv_uv = raw.last_good_ocv_uv;
+
+ if (the_chip->end_percent > the_chip->start_percent) {
+ last_charge_increase +=
+ the_chip->end_percent - the_chip->start_percent;
+ if (last_charge_increase > 100) {
+ last_chargecycles++;
+ last_charge_increase = last_charge_increase % 100;
+ }
+ }
+ pr_info("end_percent = %d%% last_charge_increase = %d"
+ "last_chargecycles = %d\n",
+ the_chip->end_percent,
+ last_charge_increase,
+ last_chargecycles);
+ the_chip->start_percent = -EINVAL;
+ the_chip->end_percent = -EINVAL;
+ pm_bms_masked_write(the_chip, BMS_TOLERANCES,
+ IBAT_TOL_MASK, IBAT_TOL_NOCHG);
+}
+EXPORT_SYMBOL_GPL(pm8921_bms_charging_end);
+
+int pm8921_bms_stop_ocv_updates(void)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ if (!is_ocv_update_start) {
+ pr_info("ocv updates is already stopped");
+ return -EINVAL;
+ }
+ is_ocv_update_start = 0;
+ pr_info("stopping ocv updates, is_ocv_update_start=%d", is_ocv_update_start);
+ return pm_bms_masked_write(the_chip, BMS_TOLERANCES,
+ OCV_TOL_MASK, OCV_TOL_NO_OCV);
+}
+EXPORT_SYMBOL_GPL(pm8921_bms_stop_ocv_updates);
+
+int pm8921_bms_start_ocv_updates(void)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ if (is_ocv_update_start) {
+ pr_info("ocv updates is already started");
+ return -EINVAL;
+ }
+ is_ocv_update_start = 1;
+ pr_info("starting ocv updates, is_ocv_update_start=%d", is_ocv_update_start);
+ return pm_bms_masked_write(the_chip, BMS_TOLERANCES,
+ OCV_TOL_MASK, OCV_TOL_DEFAULT);
+}
+EXPORT_SYMBOL_GPL(pm8921_bms_start_ocv_updates);
+
+static irqreturn_t pm8921_bms_sbi_write_ok_handler(int irq, void *data)
+{
+ pr_debug("irq = %d triggered", irq);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t pm8921_bms_cc_thr_handler(int irq, void *data)
+{
+ pr_debug("irq = %d triggered", irq);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t pm8921_bms_vsense_thr_handler(int irq, void *data)
+{
+ pr_debug("irq = %d triggered", irq);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t pm8921_bms_vsense_for_r_handler(int irq, void *data)
+{
+ pr_debug("irq = %d triggered", irq);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t pm8921_bms_ocv_for_r_handler(int irq, void *data)
+{
+ struct pm8921_bms_chip *chip = data;
+
+ pr_debug("irq = %d triggered", irq);
+ schedule_work(&chip->calib_hkadc_work);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t pm8921_bms_good_ocv_handler(int irq, void *data)
+{
+ struct pm8921_bms_chip *chip = data;
+
+ pr_debug("irq = %d triggered", irq);
+ schedule_work(&chip->calib_hkadc_work);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t pm8921_bms_vsense_avg_handler(int irq, void *data)
+{
+ pr_debug("irq = %d triggered", irq);
+ return IRQ_HANDLED;
+}
+
+struct pm_bms_irq_init_data {
+ unsigned int irq_id;
+ char *name;
+ unsigned long flags;
+ irqreturn_t (*handler)(int, void *);
+};
+
+#define BMS_IRQ(_id, _flags, _handler) \
+{ \
+ .irq_id = _id, \
+ .name = #_id, \
+ .flags = _flags, \
+ .handler = _handler, \
+}
+
+struct pm_bms_irq_init_data bms_irq_data[] = {
+ BMS_IRQ(PM8921_BMS_SBI_WRITE_OK, IRQF_TRIGGER_RISING,
+ pm8921_bms_sbi_write_ok_handler),
+ BMS_IRQ(PM8921_BMS_CC_THR, IRQF_TRIGGER_RISING,
+ pm8921_bms_cc_thr_handler),
+ BMS_IRQ(PM8921_BMS_VSENSE_THR, IRQF_TRIGGER_RISING,
+ pm8921_bms_vsense_thr_handler),
+ BMS_IRQ(PM8921_BMS_VSENSE_FOR_R, IRQF_TRIGGER_RISING,
+ pm8921_bms_vsense_for_r_handler),
+ BMS_IRQ(PM8921_BMS_OCV_FOR_R, IRQF_TRIGGER_RISING,
+ pm8921_bms_ocv_for_r_handler),
+ BMS_IRQ(PM8921_BMS_GOOD_OCV, IRQF_TRIGGER_RISING,
+ pm8921_bms_good_ocv_handler),
+ BMS_IRQ(PM8921_BMS_VSENSE_AVG, IRQF_TRIGGER_RISING,
+ pm8921_bms_vsense_avg_handler),
+};
+
+static void free_irqs(struct pm8921_bms_chip *chip)
+{
+ int i;
+
+ for (i = 0; i < PM_BMS_MAX_INTS; i++)
+ if (chip->pmic_bms_irq[i]) {
+ free_irq(chip->pmic_bms_irq[i], NULL);
+ chip->pmic_bms_irq[i] = 0;
+ }
+}
+
+static int __devinit request_irqs(struct pm8921_bms_chip *chip,
+ struct platform_device *pdev)
+{
+ struct resource *res;
+ int ret, i;
+
+ ret = 0;
+ bitmap_fill(chip->enabled_irqs, PM_BMS_MAX_INTS);
+
+ for (i = 0; i < ARRAY_SIZE(bms_irq_data); i++) {
+ res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+ bms_irq_data[i].name);
+ if (res == NULL) {
+ pr_err("couldn't find %s\n", bms_irq_data[i].name);
+ goto err_out;
+ }
+ ret = request_irq(res->start, bms_irq_data[i].handler,
+ bms_irq_data[i].flags,
+ bms_irq_data[i].name, chip);
+ if (ret < 0) {
+ pr_err("couldn't request %d (%s) %d\n", res->start,
+ bms_irq_data[i].name, ret);
+ goto err_out;
+ }
+ chip->pmic_bms_irq[bms_irq_data[i].irq_id] = res->start;
+ pm8921_bms_disable_irq(chip, bms_irq_data[i].irq_id);
+ }
+ return 0;
+
+err_out:
+ free_irqs(chip);
+ return -EINVAL;
+}
+
+#define EN_BMS_BIT BIT(7)
+#define EN_PON_HS_BIT BIT(0)
+static int __devinit pm8921_bms_hw_init(struct pm8921_bms_chip *chip)
+{
+ int rc;
+
+ rc = pm_bms_masked_write(chip, BMS_CONTROL,
+ EN_BMS_BIT | EN_PON_HS_BIT, EN_BMS_BIT | EN_PON_HS_BIT);
+ if (rc) {
+ pr_err("failed to enable pon and bms addr = %d %d",
+ BMS_CONTROL, rc);
+ }
+
+
+ pm_bms_masked_write(chip, BMS_TOLERANCES,
+ IBAT_TOL_MASK, IBAT_TOL_NOCHG);
+
+ is_ocv_update_start = 1;
+ pm_bms_masked_write(chip, BMS_TOLERANCES,
+ OCV_TOL_MASK, OCV_TOL_DEFAULT);
+ return 0;
+}
+
+static int bms_disabled;
+static int set_disable_bms_param(const char *val, struct kernel_param *kp)
+{
+ u8 data;
+ int rc;
+ struct pm8921_bms_chip *chip = the_chip;
+
+ rc = param_set_int(val, kp);
+
+ if (rc) {
+ pr_err("error setting value %d\n", rc);
+ return rc;
+ }
+
+ if (bms_disabled)
+ data = 0;
+ else
+ data = EN_BMS_BIT | EN_PON_HS_BIT;
+
+ pr_info("set bms_disabled =%d\n", bms_disabled);
+ rc = pm_bms_masked_write(chip, BMS_CONTROL,
+ EN_BMS_BIT | EN_PON_HS_BIT, data);
+ if (rc) {
+ pr_err("failed to enable pon and bms addr = %d %d",
+ BMS_CONTROL, rc);
+ }
+
+ return 0;
+}
+module_param_call(disabled, set_disable_bms_param, param_get_uint,
+ &bms_disabled, 0644);
+
+static void check_initial_ocv(struct pm8921_bms_chip *chip)
+{
+ int ocv_uv, rc;
+ int16_t ocv_raw;
+ int usb_chg;
+
+ ocv_uv = 0;
+ pm_bms_read_output_data(chip, LAST_GOOD_OCV_VALUE, &ocv_raw);
+ usb_chg = usb_chg_plugged_in();
+ rc = convert_vbatt_raw_to_uv(chip, usb_chg, ocv_raw, &ocv_uv);
+ if (rc || ocv_uv == 0) {
+ rc = adc_based_ocv(chip, &ocv_uv);
+ if (rc) {
+ pr_err("failed to read adc based ocv_uv rc = %d\n", rc);
+ ocv_uv = DEFAULT_OCV_MICROVOLTS;
+ }
+ last_ocv_uv = ocv_uv;
+ }
+ pr_debug("ocv_uv = %d last_ocv_uv = %d\n", ocv_uv, last_ocv_uv);
+}
+
+static int64_t read_battery_id(struct pm8921_bms_chip *chip)
+{
+ int rc;
+ struct pm8xxx_adc_chan_result result;
+
+ rc = pm8xxx_adc_read(chip->batt_id_channel, &result);
+ if (rc) {
+ pr_err("error reading batt id channel = %d, rc = %d\n",
+ chip->vbat_channel, rc);
+ return rc;
+ }
+ pr_debug("batt_id phy = %lld meas = 0x%llx\n", result.physical,
+ result.measurement);
+ return result.physical;
+}
+
+#ifdef CONFIG_HTC_BATT_8960
+#define PM8921_BMS_HTC_FAKE_BATT_ID (1)
+static int set_battery_data(struct pm8921_bms_chip *chip)
+{
+ int battery_id_mv, batt_id;
+ struct pm8921_bms_battery_data* bms_battery_data;
+
+
+
+ if (pm8xxx_get_revision(chip->dev->parent) < PM8XXX_REVISION_8921_2p0) {
+ batt_id = PM8921_BMS_HTC_FAKE_BATT_ID;
+ htc_battery_cell_set_cur_cell_by_id(batt_id);
+ } else {
+ battery_id_mv = (int)read_battery_id(chip) / 1000;
+
+ batt_id = htc_battery_cell_find_and_set_id_auto(battery_id_mv);
+ }
+
+
+ bms_battery_data = htc_battery_cell_get_cur_cell_gauge_cdata();
+
+ if (bms_battery_data) {
+ pr_info("set bms_battery_data (cell_id=%d).\n",
+ batt_id);
+ chip->fcc = bms_battery_data->fcc;
+ chip->fcc_temp_lut = bms_battery_data->fcc_temp_lut;
+ chip->fcc_sf_lut = bms_battery_data->fcc_sf_lut;
+ chip->pc_temp_ocv_lut = bms_battery_data->pc_temp_ocv_lut;
+ chip->pc_sf_lut = bms_battery_data->pc_sf_lut;
+ chip->rbatt_sf_lut = bms_battery_data->rbatt_sf_lut;
+ chip->default_rbatt_mohm
+ = bms_battery_data->default_rbatt_mohm;
+ chip->delta_rbatt_mohm
+ = bms_battery_data->delta_rbatt_mohm;
+ } else {
+ pr_err("bms_battery_data doesn't exist (id=%d)\n",
+ batt_id);
+ chip->fcc = palladium_1500_data.fcc;
+ chip->fcc_temp_lut = palladium_1500_data.fcc_temp_lut;
+ chip->fcc_sf_lut = palladium_1500_data.fcc_sf_lut;
+ chip->pc_temp_ocv_lut = palladium_1500_data.pc_temp_ocv_lut;
+ chip->pc_sf_lut = palladium_1500_data.pc_sf_lut;
+ chip->rbatt_sf_lut = palladium_1500_data.rbatt_sf_lut;
+ chip->default_rbatt_mohm
+ = palladium_1500_data.default_rbatt_mohm;
+ chip->delta_rbatt_mohm
+ = palladium_1500_data.delta_rbatt_mohm;
+ }
+ return 0;
+}
+#else
+#define PALLADIUM_ID_MIN 0x7F40
+#define PALLADIUM_ID_MAX 0x7F5A
+#define DESAY_5200_ID_MIN 0x7F7F
+#define DESAY_5200_ID_MAX 0x802F
+static int set_battery_data(struct pm8921_bms_chip *chip)
+{
+ int64_t battery_id;
+
+ battery_id = read_battery_id(chip);
+
+ if (battery_id < 0) {
+ pr_err("cannot read battery id err = %lld\n", battery_id);
+ return battery_id;
+ }
+
+ if (is_between(PALLADIUM_ID_MIN, PALLADIUM_ID_MAX, battery_id)) {
+ chip->fcc = palladium_1500_data.fcc;
+ chip->fcc_temp_lut = palladium_1500_data.fcc_temp_lut;
+ chip->fcc_sf_lut = palladium_1500_data.fcc_sf_lut;
+ chip->pc_temp_ocv_lut = palladium_1500_data.pc_temp_ocv_lut;
+ chip->pc_sf_lut = palladium_1500_data.pc_sf_lut;
+ chip->rbatt_sf_lut = palladium_1500_data.rbatt_sf_lut;
+ chip->default_rbatt_mohm
+ = palladium_1500_data.default_rbatt_mohm;
+ chip->delta_rbatt_mohm
+ = palladium_1500_data.delta_rbatt_mohm;
+ return 0;
+ } else if (is_between(DESAY_5200_ID_MIN, DESAY_5200_ID_MAX,
+ battery_id)) {
+ chip->fcc = desay_5200_data.fcc;
+ chip->fcc_temp_lut = desay_5200_data.fcc_temp_lut;
+ chip->fcc_sf_lut = desay_5200_data.fcc_sf_lut;
+ chip->pc_temp_ocv_lut = desay_5200_data.pc_temp_ocv_lut;
+ chip->pc_sf_lut = desay_5200_data.pc_sf_lut;
+ chip->rbatt_sf_lut = desay_5200_data.rbatt_sf_lut;
+ chip->default_rbatt_mohm = desay_5200_data.default_rbatt_mohm;
+ chip->delta_rbatt_mohm = desay_5200_data.delta_rbatt_mohm;
+ return 0;
+ } else {
+ pr_warn("invalid battery id, palladium 1500 assumed batt_id %llx\n",
+ battery_id);
+ chip->fcc = palladium_1500_data.fcc;
+ chip->fcc_temp_lut = palladium_1500_data.fcc_temp_lut;
+ chip->fcc_sf_lut = palladium_1500_data.fcc_sf_lut;
+ chip->pc_temp_ocv_lut = palladium_1500_data.pc_temp_ocv_lut;
+ chip->pc_sf_lut = palladium_1500_data.pc_sf_lut;
+ chip->rbatt_sf_lut = palladium_1500_data.rbatt_sf_lut;
+ chip->default_rbatt_mohm
+ = palladium_1500_data.default_rbatt_mohm;
+ chip->delta_rbatt_mohm
+ = palladium_1500_data.delta_rbatt_mohm;
+ return 0;
+ }
+}
+#endif
+
+enum bms_request_operation {
+ CALC_RBATT,
+ CALC_FCC,
+ CALC_PC,
+ CALC_SOC,
+ CALIB_HKADC,
+ CALIB_CCADC,
+ STOP_OCV,
+ START_OCV,
+ GET_VBAT_VSENSE_SIMULTANEOUS,
+};
+
+static int test_batt_temp = 5;
+static int test_chargecycle = 150;
+static int test_ocv = 3900000;
+enum {
+ TEST_BATT_TEMP,
+ TEST_CHARGE_CYCLE,
+ TEST_OCV,
+};
+static int get_test_param(void *data, u64 * val)
+{
+ switch ((int)data) {
+ case TEST_BATT_TEMP:
+ *val = test_batt_temp;
+ break;
+ case TEST_CHARGE_CYCLE:
+ *val = test_chargecycle;
+ break;
+ case TEST_OCV:
+ *val = test_ocv;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+static int set_test_param(void *data, u64 val)
+{
+ switch ((int)data) {
+ case TEST_BATT_TEMP:
+ test_batt_temp = (int)val;
+ break;
+ case TEST_CHARGE_CYCLE:
+ test_chargecycle = (int)val;
+ break;
+ case TEST_OCV:
+ test_ocv = (int)val;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(temp_fops, get_test_param, set_test_param, "%llu\n");
+
+static int get_calc(void *data, u64 * val)
+{
+ int param = (int)data;
+ int ret = 0;
+ int ibat_ua, vbat_uv;
+ struct pm8921_soc_params raw;
+ struct pm8921_rbatt_params rraw;
+
+ read_soc_params_raw(the_chip, &raw);
+ read_rbatt_params_raw(the_chip, &rraw);
+
+ *val = 0;
+
+
+ switch (param) {
+ case CALC_RBATT:
+ *val = calculate_rbatt_resume(the_chip, &rraw);
+ break;
+ case CALC_FCC:
+ *val = calculate_fcc_uah(the_chip, test_batt_temp,
+ test_chargecycle);
+ break;
+ case CALC_PC:
+ *val = calculate_pc(the_chip, test_ocv, test_batt_temp,
+ test_chargecycle);
+ break;
+ case CALC_SOC:
+ *val = calculate_state_of_charge(the_chip, &raw,
+ test_batt_temp, test_chargecycle, 0);
+ break;
+ case CALIB_HKADC:
+
+ *val = 0;
+ calib_hkadc(the_chip);
+ break;
+ case CALIB_CCADC:
+
+ *val = 0;
+ pm8xxx_calib_ccadc();
+ break;
+ case GET_VBAT_VSENSE_SIMULTANEOUS:
+
+ *val =
+ pm8921_bms_get_simultaneous_battery_voltage_and_current(
+ &ibat_ua,
+ &vbat_uv);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+static int set_calc(void *data, u64 val)
+{
+ int param = (int)data;
+ int ret = 0;
+
+ switch (param) {
+ case STOP_OCV:
+ pm8921_bms_stop_ocv_updates();
+ break;
+ case START_OCV:
+ pm8921_bms_start_ocv_updates();
+ break;
+ default:
+ ret = -EINVAL;
+ }
+ return ret;
+}
+DEFINE_SIMPLE_ATTRIBUTE(calc_fops, get_calc, set_calc, "%llu\n");
+
+static int get_reading(void *data, u64 * val)
+{
+ int param = (int)data;
+ int ret = 0;
+ struct pm8921_soc_params raw;
+ struct pm8921_rbatt_params rraw;
+
+ read_soc_params_raw(the_chip, &raw);
+ read_rbatt_params_raw(the_chip, &rraw);
+
+ *val = 0;
+
+ switch (param) {
+ case CC_MSB:
+ case CC_LSB:
+ *val = raw.cc;
+ break;
+ case LAST_GOOD_OCV_VALUE:
+ *val = raw.last_good_ocv_uv;
+ break;
+ case VBATT_FOR_RBATT:
+ *val = rraw.vbatt_for_rbatt_uv;
+ break;
+ case VSENSE_FOR_RBATT:
+ *val = rraw.vsense_for_rbatt_uv;
+ break;
+ case OCV_FOR_RBATT:
+ *val = rraw.ocv_for_rbatt_uv;
+ break;
+ case VSENSE_AVG:
+ read_vsense_avg(the_chip, (uint *)val);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+ return ret;
+}
+DEFINE_SIMPLE_ATTRIBUTE(reading_fops, get_reading, NULL, "%lld\n");
+
+static int get_rt_status(void *data, u64 * val)
+{
+ int i = (int)data;
+ int ret;
+
+
+ ret = pm_bms_get_rt_status(the_chip, i);
+ *val = ret;
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(rt_fops, get_rt_status, NULL, "%llu\n");
+
+static int get_reg(void *data, u64 * val)
+{
+ int addr = (int)data;
+ int ret;
+ u8 temp;
+
+ ret = pm8xxx_readb(the_chip->dev->parent, addr, &temp);
+ if (ret) {
+ pr_err("pm8xxx_readb to %x value = %d errored = %d\n",
+ addr, temp, ret);
+ return -EAGAIN;
+ }
+ *val = temp;
+ return 0;
+}
+
+static int set_reg(void *data, u64 val)
+{
+ int addr = (int)data;
+ int ret;
+ u8 temp;
+
+ temp = (u8) val;
+ ret = pm8xxx_writeb(the_chip->dev->parent, addr, temp);
+ if (ret) {
+ pr_err("pm8xxx_writeb to %x value = %d errored = %d\n",
+ addr, temp, ret);
+ return -EAGAIN;
+ }
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(reg_fops, get_reg, set_reg, "0x%02llx\n");
+
+static void dump_all(void)
+{
+ u64 val;
+
+ get_reg((void *)BMS_CONTROL, &val);
+ pr_info("BMS_CONTROL = 0x%02llx\n", val);
+ get_reg((void *)BMS_OUTPUT0, &val);
+ pr_info("BMS_OUTPUT0 = 0x%02llx\n", val);
+ get_reg((void *)BMS_OUTPUT1, &val);
+ pr_info("BMS_OUTPUT1 = 0x%02llx\n", val);
+ get_reg((void *)BMS_TOLERANCES, &val);
+ pr_info("BMS_TOLERANCES = 0x%02llx\n", val);
+ get_reg((void *)BMS_TEST1, &val);
+ pr_info("BMS_TEST1 = 0x%02llx\n", val);
+ get_reg((void *)OCV_UPDATE_STORAGE, &val);
+ pr_info("OCV_UPDATE_STORAGE = 0x%02llx\n", val);
+
+
+ get_reading((void *)CC_MSB, &val);
+ pr_info("read_cc = 0x%lld\n", val);
+ get_reading((void *)LAST_GOOD_OCV_VALUE, &val);
+ pr_info("last_good_ocv = 0x%lld\n", val);
+ get_reading((void *)VBATT_FOR_RBATT, &val);
+ pr_info("vbatt_for_rbatt = 0x%lld\n", val);
+ get_reading((void *)VSENSE_FOR_RBATT, &val);
+ pr_info("vsense_for_rbatt = 0x%lld\n", val);
+ get_reading((void *)OCV_FOR_RBATT, &val);
+ pr_info("ocv_for_rbatt = 0x%lld\n", val);
+ get_reading((void *)VSENSE_AVG, &val);
+ pr_info("vsense_avg = 0x%lld\n", val);
+
+
+ pr_info("BMS irq: %d%d%d%d%d%d%d\n",
+ pm_bms_get_rt_status(the_chip, PM8921_BMS_SBI_WRITE_OK),
+ pm_bms_get_rt_status(the_chip, PM8921_BMS_CC_THR),
+ pm_bms_get_rt_status(the_chip, PM8921_BMS_VSENSE_THR),
+ pm_bms_get_rt_status(the_chip, PM8921_BMS_VSENSE_FOR_R),
+ pm_bms_get_rt_status(the_chip, PM8921_BMS_OCV_FOR_R),
+ pm_bms_get_rt_status(the_chip, PM8921_BMS_GOOD_OCV),
+ pm_bms_get_rt_status(the_chip, PM8921_BMS_VSENSE_AVG));
+
+ pm8xxx_ccadc_dump_all();
+}
+
+inline int pm8921_bms_dump_all(void)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ dump_all();
+ return 0;
+}
+EXPORT_SYMBOL(pm8921_bms_dump_all);
+
+int pm8921_bms_get_attr_text(char *buf, int size)
+{
+ struct pm8921_soc_params raw;
+ struct pm8921_rbatt_params rraw;
+ unsigned long flags;
+ int len = 0;
+ u64 val = 0;
+ int cc_uah, fcc_uah, unusable_charge_uah, remaining_charge_uah;
+ int chargecycles;
+ int soc_rbatt, rbatt;
+ int batt_temp, rc;
+ struct pm8xxx_adc_chan_result result;
+
+ if (!the_chip) {
+ pr_err("driver not initialized\n");
+ return 0;
+ }
+
+ get_reg((void *)BMS_CONTROL, &val);
+ len += scnprintf(buf + len, size - len,
+ "BMS_CONTROL: 0x%02llx;\n", val);
+ get_reg((void *)BMS_OUTPUT0, &val);
+ len += scnprintf(buf + len, size - len,
+ "BMS_OUTPUT0: 0x%02llx;\n", val);
+ get_reg((void *)BMS_OUTPUT1, &val);
+ len += scnprintf(buf + len, size - len,
+ "BMS_OUTPUT1: 0x%02llx;\n", val);
+ get_reg((void *)BMS_TOLERANCES, &val);
+ len += scnprintf(buf + len, size - len,
+ "BMS_TOLERANCES: 0x%02llx;\n", val);
+ get_reg((void *)BMS_TEST1, &val);
+ len += scnprintf(buf + len, size - len,
+ "BMS_TEST1: 0x%02llx;\n", val);
+ get_reg((void *)OCV_UPDATE_STORAGE, &val);
+ len += scnprintf(buf + len, size - len,
+ "OCV_UPDATE_STORAGE: 0x%02llx;\n", val);
+
+ len += scnprintf(buf + len, size - len,
+ "bms_discharge_soc: %d;\n", bms_discharge_percent);
+ len += scnprintf(buf + len, size - len,
+ "is_ocv_update_start: %d;\n", is_ocv_update_start);
+
+ read_soc_params_raw(the_chip, &raw);
+ read_rbatt_params_raw(the_chip, &rraw);
+
+ len += scnprintf(buf + len, size - len,
+ "OCV_FOR_RBATT_RAW: 0x%x;\n", rraw.ocv_for_rbatt_raw);
+ len += scnprintf(buf + len, size - len,
+ "VBATT_FOR_RBATT_RAW: 0x%x;\n", rraw.vbatt_for_rbatt_raw);
+ len += scnprintf(buf + len, size - len,
+ "VSENSE_FOR_RBATT_RAW: 0x%x;\n", rraw.vsense_for_rbatt_raw);
+ len += scnprintf(buf + len, size - len,
+ "LAST_GOOD_OCV_RAW: 0x%x;\n", raw.last_good_ocv_raw);
+ len += scnprintf(buf + len, size - len,
+ "CC_RAW: 0x%x;\n", raw.cc);
+
+ len += scnprintf(buf + len, size - len,
+ "ocv_for_rbatt_uv: %d;\n", rraw.ocv_for_rbatt_uv);
+ len += scnprintf(buf + len, size - len,
+ "vbatt_for_rbatt_uv: %d;\n", rraw.vbatt_for_rbatt_uv);
+ len += scnprintf(buf + len, size - len,
+ "vsense_for_rbatt_uv: %d;\n", rraw.vsense_for_rbatt_uv);
+ len += scnprintf(buf + len, size - len,
+ "last_good_ocv_uv: %d;\n", raw.last_good_ocv_uv);
+
+ rc = pm8xxx_adc_read(the_chip->batt_temp_channel, &result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ the_chip->batt_temp_channel, rc);
+ return len;
+ }
+ batt_temp = (int)result.physical;
+ chargecycles = last_chargecycles;
+ fcc_uah = calculate_fcc_uah(the_chip, batt_temp, chargecycles);
+ remaining_charge_uah = calculate_remaining_charge_uah(the_chip, &raw,
+ fcc_uah, batt_temp, chargecycles);
+ spin_lock_irqsave(&the_chip->bms_100_lock, flags);
+ calculate_cc_uah(the_chip, raw.cc, &cc_uah);
+ spin_unlock_irqrestore(&the_chip->bms_100_lock, flags);
+ soc_rbatt = ((remaining_charge_uah - cc_uah) * 100) / fcc_uah;
+ if (soc_rbatt < 0)
+ soc_rbatt = 0;
+ rbatt = get_rbatt(the_chip, soc_rbatt, batt_temp);
+ unusable_charge_uah = calculate_unusable_charge_uah(the_chip, rbatt,
+ fcc_uah, batt_temp, chargecycles);
+ len += scnprintf(buf + len, size - len,
+ "rbatt(milliOhms): %d;\n", bms_dbg.rbatt);
+ len += scnprintf(buf + len, size - len,
+ "rbatt_scalefactor: %d;\n", bms_dbg.rbatt_sf);
+ len += scnprintf(buf + len, size - len,
+ "soc_rbatt(%%): %d;\n", bms_dbg.soc_rbatt);
+ len += scnprintf(buf + len, size - len,
+ "last_rbatt(%%): %d;\n", last_rbatt);
+ len += scnprintf(buf + len, size - len,
+ "voltage_unusable_uv(uV): %d;\n", bms_dbg.voltage_unusable_uv);
+ len += scnprintf(buf + len, size - len,
+ "pc_unusable(%%): %d;\n", bms_dbg.pc_unusable);
+ len += scnprintf(buf + len, size - len,
+ "rc_pc(%%): %d;\n", bms_dbg.rc_pc);
+ len += scnprintf(buf + len, size - len,
+ "scalefactor(): %d;\n", bms_dbg.scalefactor);
+ len += scnprintf(buf + len, size - len,
+ "fcc(uAh): %d;\n", fcc_uah);
+ len += scnprintf(buf + len, size - len,
+ "unusable_charge(uAh): %d;\n", unusable_charge_uah);
+ len += scnprintf(buf + len, size - len,
+ "remaining_charge(uAh): %d;\n", remaining_charge_uah);
+ len += scnprintf(buf + len, size - len,
+ "cc(uAh): %d;\n", cc_uah);
+ len += scnprintf(buf + len, size - len,
+ "chargecycles: %d;\n", chargecycles);
+ len += scnprintf(buf + len, size - len,
+ "start_percent: %d;\n", the_chip->start_percent);
+ len += scnprintf(buf + len, size - len,
+ "end_percent: %d;\n", the_chip->end_percent);
+
+
+ len += pm8xxx_ccadc_get_attr_text(buf + len, size - len);
+
+ return len;
+}
+EXPORT_SYMBOL(pm8921_bms_get_attr_text);
+
+static void create_debugfs_entries(struct pm8921_bms_chip *chip)
+{
+ int i;
+
+ chip->dent = debugfs_create_dir("pm8921-bms", NULL);
+
+ if (IS_ERR(chip->dent)) {
+ pr_err("pmic bms couldnt create debugfs dir\n");
+ return;
+ }
+
+ debugfs_create_file("BMS_CONTROL", 0644, chip->dent,
+ (void *)BMS_CONTROL, ®_fops);
+ debugfs_create_file("BMS_OUTPUT0", 0644, chip->dent,
+ (void *)BMS_OUTPUT0, ®_fops);
+ debugfs_create_file("BMS_OUTPUT1", 0644, chip->dent,
+ (void *)BMS_OUTPUT1, ®_fops);
+ debugfs_create_file("BMS_TEST1", 0644, chip->dent,
+ (void *)BMS_TEST1, ®_fops);
+
+ debugfs_create_file("test_batt_temp", 0644, chip->dent,
+ (void *)TEST_BATT_TEMP, &temp_fops);
+ debugfs_create_file("test_chargecycle", 0644, chip->dent,
+ (void *)TEST_CHARGE_CYCLE, &temp_fops);
+ debugfs_create_file("test_ocv", 0644, chip->dent,
+ (void *)TEST_OCV, &temp_fops);
+
+ debugfs_create_file("read_cc", 0644, chip->dent,
+ (void *)CC_MSB, &reading_fops);
+ debugfs_create_file("read_last_good_ocv", 0644, chip->dent,
+ (void *)LAST_GOOD_OCV_VALUE, &reading_fops);
+ debugfs_create_file("read_vbatt_for_rbatt", 0644, chip->dent,
+ (void *)VBATT_FOR_RBATT, &reading_fops);
+ debugfs_create_file("read_vsense_for_rbatt", 0644, chip->dent,
+ (void *)VSENSE_FOR_RBATT, &reading_fops);
+ debugfs_create_file("read_ocv_for_rbatt", 0644, chip->dent,
+ (void *)OCV_FOR_RBATT, &reading_fops);
+ debugfs_create_file("read_vsense_avg", 0644, chip->dent,
+ (void *)VSENSE_AVG, &reading_fops);
+
+ debugfs_create_file("show_rbatt", 0644, chip->dent,
+ (void *)CALC_RBATT, &calc_fops);
+ debugfs_create_file("show_fcc", 0644, chip->dent,
+ (void *)CALC_FCC, &calc_fops);
+ debugfs_create_file("show_pc", 0644, chip->dent,
+ (void *)CALC_PC, &calc_fops);
+ debugfs_create_file("show_soc", 0644, chip->dent,
+ (void *)CALC_SOC, &calc_fops);
+ debugfs_create_file("calib_hkadc", 0644, chip->dent,
+ (void *)CALIB_HKADC, &calc_fops);
+ debugfs_create_file("calib_ccadc", 0644, chip->dent,
+ (void *)CALIB_CCADC, &calc_fops);
+ debugfs_create_file("stop_ocv", 0644, chip->dent,
+ (void *)STOP_OCV, &calc_fops);
+ debugfs_create_file("start_ocv", 0644, chip->dent,
+ (void *)START_OCV, &calc_fops);
+
+ debugfs_create_file("simultaneous", 0644, chip->dent,
+ (void *)GET_VBAT_VSENSE_SIMULTANEOUS, &calc_fops);
+
+ for (i = 0; i < ARRAY_SIZE(bms_irq_data); i++) {
+ if (chip->pmic_bms_irq[bms_irq_data[i].irq_id])
+ debugfs_create_file(bms_irq_data[i].name, 0444,
+ chip->dent,
+ (void *)bms_irq_data[i].irq_id,
+ &rt_fops);
+ }
+}
+
+static int dump_cc_uah(void)
+{
+ unsigned long flags;
+ struct pm8921_soc_params raw;
+ int cc_uah;
+
+ if (!the_chip) {
+ pr_err("driver not initialized\n");
+ return 0;
+ }
+ read_soc_params_raw(the_chip, &raw);
+
+ spin_lock_irqsave(&the_chip->bms_100_lock, flags);
+
+ calculate_cc_uah(the_chip, raw.cc, &cc_uah);
+ pr_info("cc_uah = %duAh, raw->cc = %x,"
+ " cc = %lld after subtracting %d\n",
+ cc_uah, raw.cc,
+ (int64_t)raw.cc - the_chip->cc_reading_at_100,
+ the_chip->cc_reading_at_100);
+ spin_unlock_irqrestore(&the_chip->bms_100_lock, flags);
+ return cc_uah;
+}
+
+int prev_cc_uah = 0;
+static int pm8921_bms_suspend(struct device *dev)
+{
+ u64 val;
+ int rc;
+ struct pm8xxx_adc_chan_result result;
+ struct pm8921_bms_chip *chip = dev_get_drvdata(dev);
+ struct pm8921_soc_params raw;
+ int fcc_uah;
+ int remaining_charge_uah;
+ int cc_uah;
+
+ chip->batt_temp_suspend = 0;
+ rc = pm8xxx_adc_read(chip->batt_temp_channel, &result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ chip->batt_temp_channel, rc);
+ }
+ chip->batt_temp_suspend = (int)result.physical;
+ read_soc_params_raw(chip, &raw);
+
+ fcc_uah = calculate_fcc_uah(chip,
+ chip->batt_temp_suspend, last_chargecycles);
+ pr_debug("FCC = %uuAh batt_temp = %d, cycles = %d\n",
+ fcc_uah, chip->batt_temp_suspend, last_chargecycles);
+
+ remaining_charge_uah = calculate_remaining_charge_uah(chip, &raw,
+ fcc_uah, chip->batt_temp_suspend,
+ last_chargecycles);
+ pr_debug("RC = %uuAh\n", remaining_charge_uah);
+
+
+ calculate_cc_uah(chip, raw.cc, &cc_uah);
+ pr_debug("cc_uah = %duAh raw->cc = %x cc = %lld after subtracting %d\n",
+ cc_uah, raw.cc,
+ (int64_t)raw.cc - chip->cc_reading_at_100,
+ chip->cc_reading_at_100);
+ chip->soc_rbatt_suspend = ((remaining_charge_uah - cc_uah) * 100)
+ / fcc_uah;
+
+ dump_cc_uah();
+ get_reg((void *)BMS_TOLERANCES, &val);
+ pr_info("BMS_TOLERANCES = 0x%02llx\n", val);
+ return 0;
+}
+
+#define DELTA_RBATT_PERCENT 10
+static int pm8921_bms_resume(struct device *dev)
+{
+ u64 val;
+ struct pm8921_rbatt_params raw;
+ struct pm8921_bms_chip *chip = dev_get_drvdata(dev);
+ int rbatt;
+ int expected_rbatt;
+ int scalefactor;
+ int delta_rbatt;
+
+ read_rbatt_params_raw(chip, &raw);
+ rbatt = calculate_rbatt_resume(chip, &raw);
+
+ if (rbatt < 0)
+ return 0;
+
+ expected_rbatt
+ = (last_rbatt < 0) ? chip->default_rbatt_mohm : last_rbatt;
+
+ if (chip->rbatt_sf_lut) {
+ scalefactor = interpolate_scalingfactor(chip,
+ chip->rbatt_sf_lut,
+ chip->batt_temp_suspend / 10,
+ chip->soc_rbatt_suspend);
+ rbatt = rbatt * 100 / scalefactor;
+ }
+
+ delta_rbatt = expected_rbatt - rbatt;
+ if (delta_rbatt)
+ delta_rbatt = -delta_rbatt;
+ if (delta_rbatt * 100 <= DELTA_RBATT_PERCENT * expected_rbatt)
+ last_rbatt = rbatt;
+
+ dump_cc_uah();
+ get_reg((void *)BMS_TOLERANCES, &val);
+ pr_info("last_rbatt:%d , BMS_TOLERANCES = 0x%02llx\n", last_rbatt, val);
+ return 0;
+}
+
+static const struct dev_pm_ops pm8921_bms_pm_ops = {
+ .suspend = pm8921_bms_suspend,
+ .resume = pm8921_bms_resume,
+};
+
+#define REG_SBI_CONFIG 0x04F
+#define PAGE3_ENABLE_MASK 0x6
+#define PROGRAM_REV_MASK 0x0F
+#define PROGRAM_REV 0x9
+static int read_ocv_trim(struct pm8921_bms_chip *chip)
+{
+ int rc;
+ u8 reg, sbi_config;
+
+ rc = pm8xxx_readb(chip->dev->parent, REG_SBI_CONFIG, &sbi_config);
+ if (rc) {
+ pr_err("error = %d reading sbi config reg\n", rc);
+ return rc;
+ }
+
+ reg = sbi_config | PAGE3_ENABLE_MASK;
+ rc = pm8xxx_writeb(chip->dev->parent, REG_SBI_CONFIG, reg);
+ if (rc) {
+ pr_err("error = %d writing sbi config reg\n", rc);
+ return rc;
+ }
+
+ rc = pm8xxx_readb(chip->dev->parent, TEST_PROGRAM_REV, ®);
+ if (rc)
+ pr_err("Error %d reading %d addr %d\n",
+ rc, reg, TEST_PROGRAM_REV);
+ pr_info("program rev reg is 0x%x\n", reg);
+ reg &= PROGRAM_REV_MASK;
+
+
+ if (reg >= PROGRAM_REV) {
+ chip->amux_2_trim_delta = 0;
+ goto restore_sbi_config;
+ }
+
+ rc = pm8xxx_readb(chip->dev->parent, AMUX_TRIM_2, ®);
+ if (rc) {
+ pr_err("error = %d reading trim reg\n", rc);
+ return rc;
+ }
+
+ chip->amux_2_trim_delta = abs(0x49 - reg);
+ pr_info("trim reg=0x%x, trim delta=%d\n", reg, chip->amux_2_trim_delta);
+
+restore_sbi_config:
+ rc = pm8xxx_writeb(chip->dev->parent, REG_SBI_CONFIG, sbi_config);
+ if (rc) {
+ pr_err("error = %d writing sbi config reg\n", rc);
+ return rc;
+ }
+
+ return 0;
+}
+
+static int __devinit pm8921_bms_probe(struct platform_device *pdev)
+{
+ int rc = 0;
+ int vbatt;
+ struct pm8921_bms_chip *chip;
+ const struct pm8921_bms_platform_data *pdata
+ = pdev->dev.platform_data;
+#ifdef CONFIG_HTC_BATT_8960
+ const struct pm8921_charger_batt_param *chg_batt_param;
+#endif
+
+ pr_info("%s\n", __func__);
+
+ if (!pdata) {
+ pr_err("missing platform data\n");
+ return -EINVAL;
+ }
+
+ chip = kzalloc(sizeof(struct pm8921_bms_chip), GFP_KERNEL);
+ if (!chip) {
+ pr_err("Cannot allocate pm_bms_chip\n");
+ return -ENOMEM;
+ }
+ mutex_init(&chip->bms_output_lock);
+ spin_lock_init(&chip->bms_100_lock);
+ chip->dev = &pdev->dev;
+ chip->r_sense = pdata->r_sense;
+ chip->i_test = pdata->i_test;
+ chip->v_failure = pdata->v_failure;
+ chip->rconn_mohm = pdata->rconn_mohm;
+ chip->start_percent = -EINVAL;
+ chip->end_percent = -EINVAL;
+
+ chip->batt_temp_channel = pdata->bms_cdata.batt_temp_channel;
+ chip->vbat_channel = pdata->bms_cdata.vbat_channel;
+ chip->ref625mv_channel = pdata->bms_cdata.ref625mv_channel;
+ chip->ref1p25v_channel = pdata->bms_cdata.ref1p25v_channel;
+ chip->batt_id_channel = pdata->bms_cdata.batt_id_channel;
+ chip->revision = pm8xxx_get_revision(chip->dev->parent);
+ INIT_WORK(&chip->calib_hkadc_work, calibrate_hkadc_work);
+
+ rc = set_battery_data(chip);
+ if (rc) {
+ pr_err("%s bad battery data %d\n", __func__, rc);
+ goto free_chip;
+ }
+#ifdef CONFIG_HTC_BATT_8960
+
+ chg_batt_param = htc_battery_cell_get_cur_cell_charger_cdata();
+ if (!chg_batt_param) {
+ chip->max_voltage_uv = pdata->max_voltage_uv;
+ } else {
+ chip->max_voltage_uv = chg_batt_param->max_voltage * 1000;
+ }
+#else
+ chip->max_voltage_uv = pdata->max_voltage_uv;
+#endif
+
+ if (chip->pc_temp_ocv_lut == NULL) {
+ pr_err("temp ocv lut table is NULL\n");
+ rc = -EINVAL;
+ goto free_chip;
+ }
+
+
+ if (chip->default_rbatt_mohm <= 0)
+ chip->default_rbatt_mohm = DEFAULT_RBATT_MOHMS;
+
+
+ rc = request_irqs(chip, pdev);
+ if (rc) {
+ pr_err("couldn't register interrupts rc = %d\n", rc);
+ goto free_chip;
+ }
+
+ rc = pm8921_bms_hw_init(chip);
+ if (rc) {
+ pr_err("couldn't init hardware rc = %d\n", rc);
+ goto free_irqs;
+ }
+
+ platform_set_drvdata(pdev, chip);
+ the_chip = chip;
+ create_debugfs_entries(chip);
+
+ rc = read_ocv_trim(chip);
+ if (rc) {
+ pr_err("couldn't adjust ocv_trim rc= %d\n", rc);
+ goto free_irqs;
+ }
+ check_initial_ocv(chip);
+
+
+ schedule_work(&chip->calib_hkadc_work);
+
+ pm8921_bms_enable_irq(chip, PM8921_BMS_GOOD_OCV);
+ pm8921_bms_enable_irq(chip, PM8921_BMS_OCV_FOR_R);
+
+ get_battery_uvolts(chip, &vbatt);
+ pr_info("OK battery_capacity_at_boot=%d volt = %d ocv = %d\n",
+ pm8921_bms_get_percent_charge(),
+ vbatt, last_ocv_uv);
+ pr_info("r_sense=%u,i_test=%u,v_failure=%u\n", chip->r_sense, chip->i_test, chip->v_failure);
+ return 0;
+
+free_irqs:
+ free_irqs(chip);
+free_chip:
+ kfree(chip);
+ return rc;
+}
+
+static int __devexit pm8921_bms_remove(struct platform_device *pdev)
+{
+ struct pm8921_bms_chip *chip = platform_get_drvdata(pdev);
+
+ free_irqs(chip);
+ kfree(chip->adjusted_fcc_temp_lut);
+ platform_set_drvdata(pdev, NULL);
+ the_chip = NULL;
+ kfree(chip);
+ return 0;
+}
+
+static struct platform_driver pm8921_bms_driver = {
+ .probe = pm8921_bms_probe,
+ .remove = __devexit_p(pm8921_bms_remove),
+ .driver = {
+ .name = PM8921_BMS_DEV_NAME,
+ .owner = THIS_MODULE,
+ .pm = &pm8921_bms_pm_ops,
+ },
+};
+
+static int __init pm8921_bms_init(void)
+{
+ flag_enable_bms_chg_log =
+ (get_kernel_flag() & KERNEL_FLAG_ENABLE_BMS_CHARGER_LOG) ? 1 : 0;
+ return platform_driver_register(&pm8921_bms_driver);
+}
+
+static void __exit pm8921_bms_exit(void)
+{
+ platform_driver_unregister(&pm8921_bms_driver);
+}
+
+late_initcall(pm8921_bms_init);
+module_exit(pm8921_bms_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("PMIC8921 bms driver");
+MODULE_VERSION("1.0");
+MODULE_ALIAS("platform:" PM8921_BMS_DEV_NAME);
diff --git a/drivers/power/pm8921-charger-htc.c b/drivers/power/pm8921-charger-htc.c
new file mode 100644
index 0000000..aebb958
--- /dev/null
+++ b/drivers/power/pm8921-charger-htc.c
@@ -0,0 +1,5323 @@
+/* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+#define pr_fmt(fmt) "[BATT][CHG] " fmt
+#define pr_fmt_debug(fmt) "[BATT][CHG]%s: " fmt, __func__
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/errno.h>
+#include <linux/mfd/pm8xxx/pm8921-charger-htc.h>
+#include <linux/mfd/pm8xxx/pm8921-bms-htc.h>
+#include <linux/mfd/pm8xxx/pm8xxx-adc.h>
+#include <linux/mfd/pm8xxx/ccadc.h>
+#include <linux/mfd/pm8xxx/core.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/workqueue.h>
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+
+#include <mach/msm_xo.h>
+#ifdef CONFIG_USB_MSM_OTG_72K
+#include <mach/msm_hsusb.h>
+#else
+#include <linux/usb/msm_hsusb.h>
+#endif
+#include <mach/board_htc.h>
+
+#include <mach/htc_gauge.h>
+#include <mach/htc_charger.h>
+#include <mach/htc_battery_cell.h>
+
+#include <mach/cable_detect.h>
+#include <linux/i2c/smb349.h>
+
+static int extchg_temp_condition_old;
+
+struct delayed_work ext_charger_vbat_low_task;
+struct delayed_work ext_charger_chgdone_task;
+struct delayed_work ext_charger_temp_task;
+struct workqueue_struct *ext_charger_wq;
+
+#if defined(pr_debug)
+#undef pr_debug
+#endif
+#define pr_debug(fmt, ...) do { \
+ if (flag_enable_BMS_Charger_log) \
+ printk(KERN_INFO pr_fmt_debug(fmt), ##__VA_ARGS__); \
+ } while (0)
+
+static bool flag_enable_BMS_Charger_log;
+
+#define CHG_BUCK_CLOCK_CTRL 0x14
+
+#define PBL_ACCESS1 0x04
+#define PBL_ACCESS2 0x05
+#define SYS_CONFIG_1 0x06
+#define SYS_CONFIG_2 0x07
+#define CHG_CNTRL 0x204
+#define CHG_IBAT_MAX 0x205
+#define CHG_TEST 0x206
+#define CHG_BUCK_CTRL_TEST1 0x207
+#define CHG_BUCK_CTRL_TEST2 0x208
+#define CHG_BUCK_CTRL_TEST3 0x209
+#define COMPARATOR_OVERRIDE 0x20A
+#define PSI_TXRX_SAMPLE_DATA_0 0x20B
+#define PSI_TXRX_SAMPLE_DATA_1 0x20C
+#define PSI_TXRX_SAMPLE_DATA_2 0x20D
+#define PSI_TXRX_SAMPLE_DATA_3 0x20E
+#define PSI_CONFIG_STATUS 0x20F
+#define CHG_IBAT_SAFE 0x210
+#define CHG_ITRICKLE 0x211
+#define CHG_CNTRL_2 0x212
+#define CHG_VBAT_DET 0x213
+#define CHG_VTRICKLE 0x214
+#define CHG_ITERM 0x215
+#define CHG_CNTRL_3 0x216
+#define CHG_VIN_MIN 0x217
+#define CHG_TWDOG 0x218
+#define CHG_TTRKL_MAX 0x219
+#define CHG_TEMP_THRESH 0x21A
+#define CHG_TCHG_MAX 0x21B
+#define USB_OVP_CONTROL 0x21C
+#define DC_OVP_CONTROL 0x21D
+#define USB_OVP_TEST 0x21E
+#define DC_OVP_TEST 0x21F
+#define CHG_VDD_MAX 0x220
+#define CHG_VDD_SAFE 0x221
+#define CHG_VBAT_BOOT_THRESH 0x222
+#define USB_OVP_TRIM 0x355
+#define BUCK_CONTROL_TRIM1 0x356
+#define BUCK_CONTROL_TRIM2 0x357
+#define BUCK_CONTROL_TRIM3 0x358
+#define BUCK_CONTROL_TRIM4 0x359
+#define CHG_DEFAULTS_TRIM 0x35A
+#define CHG_ITRIM 0x35B
+#define CHG_TTRIM 0x35C
+#define CHG_COMP_OVR 0x20A
+
+#define EOC_CHECK_PERIOD_MS 10000
+#define UNPLUG_CHECK_WAIT_PERIOD_MS 200
+
+#define USB_MA_2 (2)
+#define USB_MA_500 (500)
+#define USB_MA_900 (900)
+#define USB_MA_1100 (1100)
+
+#define SAFETY_TIME_MAX_LIMIT 510
+#define SAFETY_TIME_8HR_TWICE 480
+
+enum chg_fsm_state {
+ FSM_STATE_OFF_0 = 0,
+ FSM_STATE_BATFETDET_START_12 = 12,
+ FSM_STATE_BATFETDET_END_16 = 16,
+ FSM_STATE_ON_CHG_HIGHI_1 = 1,
+ FSM_STATE_ATC_2A = 2,
+ FSM_STATE_ATC_2B = 18,
+ FSM_STATE_ON_BAT_3 = 3,
+ FSM_STATE_ATC_FAIL_4 = 4 ,
+ FSM_STATE_DELAY_5 = 5,
+ FSM_STATE_ON_CHG_AND_BAT_6 = 6,
+ FSM_STATE_FAST_CHG_7 = 7,
+ FSM_STATE_TRKL_CHG_8 = 8,
+ FSM_STATE_CHG_FAIL_9 = 9,
+ FSM_STATE_EOC_10 = 10,
+ FSM_STATE_ON_CHG_VREGOK_11 = 11,
+ FSM_STATE_ATC_PAUSE_13 = 13,
+ FSM_STATE_FAST_CHG_PAUSE_14 = 14,
+ FSM_STATE_TRKL_CHG_PAUSE_15 = 15,
+ FSM_STATE_START_BOOT = 20,
+ FSM_STATE_FLCB_VREGOK = 21,
+ FSM_STATE_FLCB = 22,
+};
+
+struct fsm_state_to_batt_status {
+ enum chg_fsm_state fsm_state;
+ int batt_state;
+};
+
+static struct fsm_state_to_batt_status map[] = {
+ {FSM_STATE_OFF_0, POWER_SUPPLY_STATUS_UNKNOWN},
+ {FSM_STATE_BATFETDET_START_12, POWER_SUPPLY_STATUS_UNKNOWN},
+ {FSM_STATE_BATFETDET_END_16, POWER_SUPPLY_STATUS_UNKNOWN},
+ {FSM_STATE_ON_CHG_HIGHI_1, POWER_SUPPLY_STATUS_FULL},
+ {FSM_STATE_ATC_2A, POWER_SUPPLY_STATUS_CHARGING},
+ {FSM_STATE_ATC_2B, POWER_SUPPLY_STATUS_CHARGING},
+ {FSM_STATE_ON_BAT_3, POWER_SUPPLY_STATUS_DISCHARGING},
+ {FSM_STATE_ATC_FAIL_4, POWER_SUPPLY_STATUS_DISCHARGING},
+ {FSM_STATE_DELAY_5, POWER_SUPPLY_STATUS_UNKNOWN },
+ {FSM_STATE_ON_CHG_AND_BAT_6, POWER_SUPPLY_STATUS_CHARGING},
+ {FSM_STATE_FAST_CHG_7, POWER_SUPPLY_STATUS_CHARGING},
+ {FSM_STATE_TRKL_CHG_8, POWER_SUPPLY_STATUS_CHARGING},
+ {FSM_STATE_CHG_FAIL_9, POWER_SUPPLY_STATUS_DISCHARGING},
+ {FSM_STATE_EOC_10, POWER_SUPPLY_STATUS_FULL},
+ {FSM_STATE_ON_CHG_VREGOK_11, POWER_SUPPLY_STATUS_NOT_CHARGING},
+ {FSM_STATE_ATC_PAUSE_13, POWER_SUPPLY_STATUS_NOT_CHARGING},
+ {FSM_STATE_FAST_CHG_PAUSE_14, POWER_SUPPLY_STATUS_NOT_CHARGING},
+ {FSM_STATE_TRKL_CHG_PAUSE_15, POWER_SUPPLY_STATUS_NOT_CHARGING},
+ {FSM_STATE_START_BOOT, POWER_SUPPLY_STATUS_NOT_CHARGING},
+ {FSM_STATE_FLCB_VREGOK, POWER_SUPPLY_STATUS_NOT_CHARGING},
+ {FSM_STATE_FLCB, POWER_SUPPLY_STATUS_NOT_CHARGING},
+};
+
+enum chg_regulation_loop {
+ VDD_LOOP = BIT(3),
+ BAT_CURRENT_LOOP = BIT(2),
+ INPUT_CURRENT_LOOP = BIT(1),
+ INPUT_VOLTAGE_LOOP = BIT(0),
+ CHG_ALL_LOOPS = VDD_LOOP | BAT_CURRENT_LOOP
+ | INPUT_CURRENT_LOOP | INPUT_VOLTAGE_LOOP,
+};
+
+enum pmic_chg_interrupts {
+ USBIN_VALID_IRQ = 0,
+ USBIN_OV_IRQ,
+ BATT_INSERTED_IRQ,
+ VBATDET_LOW_IRQ,
+ USBIN_UV_IRQ,
+ VBAT_OV_IRQ,
+ CHGWDOG_IRQ,
+ VCP_IRQ,
+ ATCDONE_IRQ,
+ ATCFAIL_IRQ,
+ CHGDONE_IRQ,
+ CHGFAIL_IRQ,
+ CHGSTATE_IRQ,
+ LOOP_CHANGE_IRQ,
+ FASTCHG_IRQ,
+ TRKLCHG_IRQ,
+ BATT_REMOVED_IRQ,
+ BATTTEMP_HOT_IRQ,
+ CHGHOT_IRQ,
+ BATTTEMP_COLD_IRQ,
+ CHG_GONE_IRQ,
+ BAT_TEMP_OK_IRQ,
+ COARSE_DET_LOW_IRQ,
+ VDD_LOOP_IRQ,
+ VREG_OV_IRQ,
+ VBATDET_IRQ,
+ BATFET_IRQ,
+ PSI_IRQ,
+ DCIN_VALID_IRQ,
+ DCIN_OV_IRQ,
+ DCIN_UV_IRQ,
+ PM_CHG_MAX_INTS,
+};
+
+struct bms_notify {
+ int is_battery_full;
+ int is_charging;
+ struct work_struct work;
+};
+
+struct pm8921_chg_chip {
+ struct device *dev;
+ unsigned int usb_present;
+ unsigned int dc_present;
+ unsigned int usb_charger_current;
+ unsigned int max_bat_chg_current;
+ unsigned int pmic_chg_irq[PM_CHG_MAX_INTS];
+ unsigned int safety_time;
+ unsigned int ttrkl_time;
+ unsigned int update_time;
+ unsigned int max_voltage_mv;
+ unsigned int min_voltage_mv;
+ int cool_temp_dc;
+ int warm_temp_dc;
+ unsigned int temp_check_period;
+ unsigned int cool_bat_chg_current;
+ unsigned int warm_bat_chg_current;
+ unsigned int cool_bat_voltage;
+ unsigned int warm_bat_voltage;
+ unsigned int is_bat_cool;
+ unsigned int is_bat_warm;
+ unsigned int resume_voltage_delta;
+ unsigned int term_current;
+ unsigned int vbat_channel;
+ unsigned int batt_temp_channel;
+ unsigned int batt_id_channel;
+ struct dentry *dent;
+ struct bms_notify bms_notify;
+ struct ext_chg_pm8921 *ext;
+ struct ext_usb_chg_pm8921 *ext_usb;
+ bool keep_btm_on_suspend;
+ bool ext_charging;
+ bool ext_charge_done;
+ bool ext_usb_charging;
+ bool ext_usb_charge_done;
+ bool dc_unplug_check;
+ DECLARE_BITMAP(enabled_irqs, PM_CHG_MAX_INTS);
+ struct work_struct battery_id_valid_work;
+ int64_t batt_id_min;
+ int64_t batt_id_max;
+ int trkl_voltage;
+ int weak_voltage;
+ int trkl_current;
+ int weak_current;
+ int vin_min;
+ unsigned int *thermal_mitigation;
+ int thermal_levels;
+ int mbat_in_gpio;
+ int is_embeded_batt;
+ struct delayed_work update_heartbeat_work;
+ struct delayed_work eoc_work;
+ struct delayed_work recharge_check_work;
+ struct work_struct unplug_ovp_fet_open_work;
+ struct delayed_work unplug_check_work;
+ struct delayed_work vin_collapse_check_work;
+ struct wake_lock unplug_ovp_fet_open_wake_lock;
+ struct wake_lock eoc_wake_lock;
+ struct wake_lock recharge_check_wake_lock;
+ enum pm8921_chg_cold_thr cold_thr;
+ enum pm8921_chg_hot_thr hot_thr;
+ u8 active_path;
+};
+
+static bool test_power_monitor = 0;
+static bool flag_keep_charge_on;
+static bool flag_pa_recharge;
+static bool flag_disable_wakelock;
+static bool is_batt_full = false;
+static bool is_ac_safety_timeout = false;
+static bool is_ac_safety_timeout_twice = false;
+static bool is_cable_remove = false;
+
+static int usbin_ov_irq_state = 0;
+static int usbin_uv_irq_state = 0;
+static int ovp = 0;
+static int uvp = 0;
+
+enum htc_power_source_type pwr_src;
+static unsigned int chg_limit_current;
+static unsigned int usb_max_current;
+static int usb_target_ma;
+static int charging_disabled;
+static int auto_enable;
+static int thermal_mitigation;
+static int usb_ovp_disable;
+static int bat_temp_ok_prev = -1;
+static int eoc_count;
+
+static struct pm8921_chg_chip *the_chip;
+
+static struct pm8xxx_adc_arb_btm_param btm_config;
+
+static int get_reg(void *data, u64 *val);
+static int get_reg_loop(void *data, u64 * val);
+static void dump_reg(void);
+static void dump_all(int more);
+static void update_ovp_uvp_state(int ov, int v, int uv);
+static irqreturn_t usbin_ov_irq_handler(int irq, void *data);
+
+static int pm_chg_masked_write(struct pm8921_chg_chip *chip, u16 addr,
+ u8 mask, u8 val)
+{
+ int rc;
+ u8 reg;
+
+ rc = pm8xxx_readb(chip->dev->parent, addr, ®);
+ if (rc) {
+ pr_err("pm8xxx_readb failed: addr=%03X, rc=%d\n", addr, rc);
+ return rc;
+ }
+ reg &= ~mask;
+ reg |= val & mask;
+ rc = pm8xxx_writeb(chip->dev->parent, addr, reg);
+ if (rc) {
+ pr_err("pm8xxx_writeb failed: addr=%03X, rc=%d\n", addr, rc);
+ return rc;
+ }
+ return 0;
+}
+
+static int pm_chg_get_rt_status(struct pm8921_chg_chip *chip, int irq_id)
+{
+ return pm8xxx_read_irq_stat(chip->dev->parent,
+ chip->pmic_chg_irq[irq_id]);
+}
+
+static int is_usb_chg_plugged_in(struct pm8921_chg_chip *chip)
+{
+ return pm_chg_get_rt_status(chip, USBIN_VALID_IRQ);
+}
+
+static int is_dc_chg_plugged_in(struct pm8921_chg_chip *chip)
+{
+ return pm_chg_get_rt_status(chip, DCIN_VALID_IRQ);
+}
+
+#define CAPTURE_FSM_STATE_CMD 0xC2
+#define READ_BANK_7 0x70
+#define READ_BANK_4 0x40
+static int pm_chg_get_fsm_state(struct pm8921_chg_chip *chip)
+{
+ u8 temp;
+ int err, ret = 0;
+
+ temp = CAPTURE_FSM_STATE_CMD;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return err;
+ }
+
+ temp = READ_BANK_7;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return err;
+ }
+
+ err = pm8xxx_readb(chip->dev->parent, CHG_TEST, &temp);
+ if (err) {
+ pr_err("pm8xxx_readb fail: addr=%03X, rc=%d\n", CHG_TEST, err);
+ return err;
+ }
+
+ ret = temp & 0xF;
+
+ temp = READ_BANK_4;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return err;
+ }
+
+ err = pm8xxx_readb(chip->dev->parent, CHG_TEST, &temp);
+ if (err) {
+ pr_err("pm8xxx_readb fail: addr=%03X, rc=%d\n", CHG_TEST, err);
+ return err;
+ }
+
+ ret |= (temp & 0x1) << 4;
+ return ret;
+}
+
+#define READ_BANK_6 0x60
+static int pm_chg_get_regulation_loop(struct pm8921_chg_chip *chip)
+{
+ u8 temp;
+ int err;
+
+ temp = READ_BANK_6;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return err;
+ }
+
+ err = pm8xxx_readb(chip->dev->parent, CHG_TEST, &temp);
+ if (err) {
+ pr_err("pm8xxx_readb fail: addr=%03X, rc=%d\n", CHG_TEST, err);
+ return err;
+ }
+
+
+ return temp & CHG_ALL_LOOPS;
+}
+
+#define CHG_USB_SUSPEND_BIT BIT(2)
+static int pm_chg_usb_suspend_enable(struct pm8921_chg_chip *chip, int enable)
+{
+ return pm_chg_masked_write(chip, CHG_CNTRL_3, CHG_USB_SUSPEND_BIT,
+ enable ? CHG_USB_SUSPEND_BIT : 0);
+}
+
+#define CHG_EN_BIT BIT(7)
+static int pm_chg_auto_enable(struct pm8921_chg_chip *chip, int enable)
+{
+ return pm_chg_masked_write(chip, CHG_CNTRL_3, CHG_EN_BIT,
+ enable ? CHG_EN_BIT : 0);
+}
+
+#define CHG_FAILED_CLEAR BIT(0)
+#define ATC_FAILED_CLEAR BIT(1)
+static int pm_chg_failed_clear(struct pm8921_chg_chip *chip, int clear)
+{
+ int rc;
+
+ rc = pm_chg_masked_write(chip, CHG_CNTRL_3, ATC_FAILED_CLEAR,
+ clear ? ATC_FAILED_CLEAR : 0);
+ rc |= pm_chg_masked_write(chip, CHG_CNTRL_3, CHG_FAILED_CLEAR,
+ clear ? CHG_FAILED_CLEAR : 0);
+ return rc;
+}
+
+#define CHG_CHARGE_DIS_BIT BIT(1)
+static int pm_chg_charge_dis(struct pm8921_chg_chip *chip, int disable)
+{
+ return pm_chg_masked_write(chip, CHG_CNTRL, CHG_CHARGE_DIS_BIT,
+ disable ? CHG_CHARGE_DIS_BIT : 0);
+}
+
+static DEFINE_SPINLOCK(pwrsrc_lock);
+#define PWRSRC_DISABLED_BIT_KDRV (1)
+#define PWRSRC_DISABLED_BIT_USER (1<<1)
+static int pwrsrc_disabled;
+static int pm_chg_disable_pwrsrc(struct pm8921_chg_chip *chip,
+ int disable, int reason)
+{
+ int rc;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pwrsrc_lock, flags);
+ if (disable)
+ pwrsrc_disabled |= reason;
+ else
+ pwrsrc_disabled &= ~reason;
+ rc = pm_chg_charge_dis(chip, pwrsrc_disabled);
+ if (rc)
+ pr_err("Failed rc=%d\n", rc);
+ spin_unlock_irqrestore(&pwrsrc_lock, flags);
+
+ return rc;
+}
+
+static DEFINE_SPINLOCK(charger_lock);
+static int batt_charging_disabled;
+#define BATT_CHG_DISABLED_BIT_EOC (1)
+#define BATT_CHG_DISABLED_BIT_KDRV (1<<1)
+#define BATT_CHG_DISABLED_BIT_USR1 (1<<2)
+#define BATT_CHG_DISABLED_BIT_USR2 (1<<3)
+#define BATT_CHG_DISABLED_BIT_BAT (1<<4)
+static int pm_chg_disable_auto_enable(struct pm8921_chg_chip *chip,
+ int disable, int reason)
+{
+ int rc;
+ unsigned long flags;
+
+ spin_lock_irqsave(&charger_lock, flags);
+ if (disable)
+ batt_charging_disabled |= reason;
+ else
+ batt_charging_disabled &= ~reason;
+ rc = pm_chg_auto_enable(the_chip, !batt_charging_disabled);
+ if (rc)
+ pr_err("Failed rc=%d\n", rc);
+ spin_unlock_irqrestore(&charger_lock, flags);
+
+ return rc;
+}
+
+#define PM8921_CHG_V_MIN_MV 3240
+#define PM8921_CHG_V_STEP_MV 20
+#define PM8921_CHG_V_STEP_10MV_OFFSET_BIT BIT(7)
+#define PM8921_CHG_VDDMAX_MAX 4500
+#define PM8921_CHG_VDDMAX_MIN 3400
+#define PM8921_CHG_V_MASK 0x7F
+static int __pm_chg_vddmax_set(struct pm8921_chg_chip *chip, int voltage)
+{
+ int remainder;
+ u8 temp = 0;
+
+ if (voltage < PM8921_CHG_VDDMAX_MIN
+ || voltage > PM8921_CHG_VDDMAX_MAX) {
+ pr_err("bad mV=%d asked to set\n", voltage);
+ return -EINVAL;
+ }
+
+ temp = (voltage - PM8921_CHG_V_MIN_MV) / PM8921_CHG_V_STEP_MV;
+
+ remainder = voltage % 20;
+ if (remainder >= 10) {
+ temp |= PM8921_CHG_V_STEP_10MV_OFFSET_BIT;
+ }
+
+ pr_debug("voltage=%d setting %02x\n", voltage, temp);
+ return pm8xxx_writeb(chip->dev->parent, CHG_VDD_MAX, temp);
+}
+
+static int pm_chg_vddmax_get(struct pm8921_chg_chip *chip, int *voltage)
+{
+ u8 temp;
+ int rc;
+
+ rc = pm8xxx_readb(chip->dev->parent, CHG_VDD_MAX, &temp);
+ if (rc) {
+ pr_err("rc = %d while reading vdd max\n", rc);
+ *voltage = 0;
+ return rc;
+ }
+ *voltage = (int)(temp & PM8921_CHG_V_MASK) * PM8921_CHG_V_STEP_MV
+ + PM8921_CHG_V_MIN_MV;
+ if (temp & PM8921_CHG_V_STEP_10MV_OFFSET_BIT)
+ *voltage = *voltage + 10;
+ return 0;
+}
+
+static int pm_chg_vddmax_set(struct pm8921_chg_chip *chip, int voltage)
+{
+ int current_mv, ret, steps, i;
+ bool increase;
+
+ ret = 0;
+
+ if (voltage < PM8921_CHG_VDDMAX_MIN
+ || voltage > PM8921_CHG_VDDMAX_MAX) {
+ pr_err("bad mV=%d asked to set\n", voltage);
+ return -EINVAL;
+ }
+
+ ret = pm_chg_vddmax_get(chip, ¤t_mv);
+ if (ret) {
+ pr_err("Failed to read vddmax rc=%d\n", ret);
+ return -EINVAL;
+ }
+ if (current_mv == voltage)
+ return 0;
+
+
+ if (is_usb_chg_plugged_in(chip)) {
+ if (current_mv < voltage) {
+ steps = (voltage - current_mv) / PM8921_CHG_V_STEP_MV;
+ increase = true;
+ } else {
+ steps = (current_mv - voltage) / PM8921_CHG_V_STEP_MV;
+ increase = false;
+ }
+ for (i = 0; i < steps; i++) {
+ if (increase)
+ current_mv += PM8921_CHG_V_STEP_MV;
+ else
+ current_mv -= PM8921_CHG_V_STEP_MV;
+ ret |= __pm_chg_vddmax_set(chip, current_mv);
+ }
+ }
+ ret |= __pm_chg_vddmax_set(chip, voltage);
+ return ret;
+}
+
+#define PM8921_CHG_VDDSAFE_MIN 3400
+#define PM8921_CHG_VDDSAFE_MAX 4500
+static int pm_chg_vddsafe_set(struct pm8921_chg_chip *chip, int voltage)
+{
+ u8 temp;
+
+ if (voltage < PM8921_CHG_VDDSAFE_MIN
+ || voltage > PM8921_CHG_VDDSAFE_MAX) {
+ pr_err("bad mV=%d asked to set\n", voltage);
+ return -EINVAL;
+ }
+ temp = (voltage - PM8921_CHG_V_MIN_MV) / PM8921_CHG_V_STEP_MV;
+ pr_debug("voltage=%d setting %02x\n", voltage, temp);
+ return pm_chg_masked_write(chip, CHG_VDD_SAFE, PM8921_CHG_V_MASK, temp);
+}
+
+#define PM8921_CHG_VBATDET_MIN 3240
+#define PM8921_CHG_VBATDET_MAX 5780
+static int pm_chg_vbatdet_set(struct pm8921_chg_chip *chip, int voltage)
+{
+ u8 temp;
+
+ if (voltage < PM8921_CHG_VBATDET_MIN
+ || voltage > PM8921_CHG_VBATDET_MAX) {
+ pr_err("bad mV=%d asked to set\n", voltage);
+ return -EINVAL;
+ }
+ temp = (voltage - PM8921_CHG_V_MIN_MV) / PM8921_CHG_V_STEP_MV;
+ pr_debug("voltage=%d setting %02x\n", voltage, temp);
+ return pm_chg_masked_write(chip, CHG_VBAT_DET, PM8921_CHG_V_MASK, temp);
+}
+
+#define PM8921_CHG_VINMIN_MIN_MV 3800
+#define PM8921_CHG_VINMIN_STEP_MV 100
+#define PM8921_CHG_VINMIN_USABLE_MAX 6500
+#define PM8921_CHG_VINMIN_USABLE_MIN 4300
+#define PM8921_CHG_VINMIN_MASK 0x1F
+static int pm_chg_vinmin_set(struct pm8921_chg_chip *chip, int voltage)
+{
+ u8 temp;
+
+ if (voltage < PM8921_CHG_VINMIN_USABLE_MIN
+ || voltage > PM8921_CHG_VINMIN_USABLE_MAX) {
+ pr_err("bad mV=%d asked to set\n", voltage);
+ return -EINVAL;
+ }
+ temp = (voltage - PM8921_CHG_VINMIN_MIN_MV) / PM8921_CHG_VINMIN_STEP_MV;
+ pr_debug("voltage=%d setting %02x\n", voltage, temp);
+ return pm_chg_masked_write(chip, CHG_VIN_MIN, PM8921_CHG_VINMIN_MASK,
+ temp);
+}
+
+static int pm_chg_vinmin_get(struct pm8921_chg_chip *chip)
+{
+ u8 temp;
+ int rc, voltage_mv;
+
+ rc = pm8xxx_readb(chip->dev->parent, CHG_VIN_MIN, &temp);
+ temp &= PM8921_CHG_VINMIN_MASK;
+
+ voltage_mv = PM8921_CHG_VINMIN_MIN_MV +
+ (int)temp * PM8921_CHG_VINMIN_STEP_MV;
+
+ return voltage_mv;
+}
+
+#define PM8921_CHG_IBATMAX_MIN 325
+#define PM8921_CHG_IBATMAX_MAX 2000
+#define PM8921_CHG_I_MIN_MA 225
+#define PM8921_CHG_I_STEP_MA 50
+#define PM8921_CHG_I_MASK 0x3F
+static int pm_chg_ibatmax_set(struct pm8921_chg_chip *chip, int chg_current)
+{
+ u8 temp;
+
+ if (chg_current < PM8921_CHG_I_MIN_MA
+ || chg_current > PM8921_CHG_IBATMAX_MAX) {
+ pr_err("bad mA=%d asked to set\n", chg_current);
+ return -EINVAL;
+ }
+ temp = (chg_current - PM8921_CHG_I_MIN_MA) / PM8921_CHG_I_STEP_MA;
+ return pm_chg_masked_write(chip, CHG_IBAT_MAX, PM8921_CHG_I_MASK, temp);
+}
+
+#define PM8921_CHG_IBATSAFE_MIN 225
+#define PM8921_CHG_IBATSAFE_MAX 3375
+static int pm_chg_ibatsafe_set(struct pm8921_chg_chip *chip, int chg_current)
+{
+ u8 temp;
+
+ if (chg_current < PM8921_CHG_IBATSAFE_MIN
+ || chg_current > PM8921_CHG_IBATSAFE_MAX) {
+ pr_err("bad mA=%d asked to set\n", chg_current);
+ return -EINVAL;
+ }
+ temp = (chg_current - PM8921_CHG_I_MIN_MA) / PM8921_CHG_I_STEP_MA;
+ return pm_chg_masked_write(chip, CHG_IBAT_SAFE,
+ PM8921_CHG_I_MASK, temp);
+}
+
+#define PM8921_CHG_ITERM_MIN_MA 50
+#define PM8921_CHG_ITERM_MAX_MA 200
+#define PM8921_CHG_ITERM_STEP_MA 10
+#define PM8921_CHG_ITERM_MASK 0xF
+static int pm_chg_iterm_set(struct pm8921_chg_chip *chip, int chg_current)
+{
+ u8 temp;
+
+ if (chg_current < PM8921_CHG_ITERM_MIN_MA
+ || chg_current > PM8921_CHG_ITERM_MAX_MA) {
+ pr_err("bad mA=%d asked to set\n", chg_current);
+ return -EINVAL;
+ }
+
+ temp = (chg_current - PM8921_CHG_ITERM_MIN_MA)
+ / PM8921_CHG_ITERM_STEP_MA;
+ return pm_chg_masked_write(chip, CHG_ITERM, PM8921_CHG_ITERM_MASK,
+ temp);
+}
+
+static int pm_chg_iterm_get(struct pm8921_chg_chip *chip, int *chg_current)
+{
+ u8 temp;
+ int rc;
+
+ rc = pm8xxx_readb(chip->dev->parent, CHG_ITERM, &temp);
+ if (rc) {
+ pr_err("err=%d reading CHG_ITEM\n", rc);
+ *chg_current = 0;
+ return rc;
+ }
+ temp &= PM8921_CHG_ITERM_MASK;
+ *chg_current = (int)temp * PM8921_CHG_ITERM_STEP_MA
+ + PM8921_CHG_ITERM_MIN_MA;
+ return 0;
+}
+
+struct usb_ma_limit_entry {
+ int usb_ma;
+};
+
+static struct usb_ma_limit_entry usb_ma_table[] = {
+ {100},
+ {500},
+ {700},
+ {850},
+ {900},
+ {1100},
+ {1300},
+ {1500},
+};
+
+#define PM8921_CHG_IUSB_MASK 0x1C
+#define PM8921_CHG_IUSB_MAX 7
+#define PM8921_CHG_IUSB_MIN 0
+static int pm_chg_iusbmax_set(struct pm8921_chg_chip *chip, int reg_val)
+{
+ u8 temp;
+
+ if (reg_val < PM8921_CHG_IUSB_MIN || reg_val > PM8921_CHG_IUSB_MAX) {
+ pr_err("bad mA=%d asked to set\n", reg_val);
+ return -EINVAL;
+ }
+ temp = reg_val << 2;
+ return pm_chg_masked_write(chip, PBL_ACCESS2, PM8921_CHG_IUSB_MASK,
+ temp);
+}
+
+static int pm_chg_iusbmax_get(struct pm8921_chg_chip *chip, int *mA)
+{
+ u8 temp;
+ int rc;
+
+ *mA = 0;
+ rc = pm8xxx_readb(chip->dev->parent, PBL_ACCESS2, &temp);
+ if (rc) {
+ pr_err("err=%d reading PBL_ACCESS2\n", rc);
+ return rc;
+ }
+ temp &= PM8921_CHG_IUSB_MASK;
+ temp = temp >> 2;
+ *mA = usb_ma_table[temp].usb_ma;
+ return rc;
+}
+
+#define PM8921_CHG_WD_MASK 0x1F
+static int pm_chg_disable_wd(struct pm8921_chg_chip *chip)
+{
+
+ return pm_chg_masked_write(chip, CHG_TWDOG, PM8921_CHG_WD_MASK, 0);
+}
+
+#define PM8921_CHG_TCHG_MASK 0x7F
+#define PM8921_CHG_TCHG_MIN 4
+#define PM8921_CHG_TCHG_MAX 512
+#define PM8921_CHG_TCHG_STEP 4
+static int pm_chg_tchg_max_set(struct pm8921_chg_chip *chip, int minutes)
+{
+ u8 temp;
+
+ if (minutes < PM8921_CHG_TCHG_MIN || minutes > PM8921_CHG_TCHG_MAX) {
+ pr_err("bad max minutes =%d asked to set\n", minutes);
+ return -EINVAL;
+ }
+
+ temp = (minutes - 1)/PM8921_CHG_TCHG_STEP;
+ return pm_chg_masked_write(chip, CHG_TCHG_MAX, PM8921_CHG_TCHG_MASK,
+ temp);
+}
+
+#define PM8921_CHG_TTRKL_MASK 0x1F
+#define PM8921_CHG_TTRKL_MIN 1
+#define PM8921_CHG_TTRKL_MAX 64
+static int pm_chg_ttrkl_max_set(struct pm8921_chg_chip *chip, int minutes)
+{
+ u8 temp;
+
+ if (minutes < PM8921_CHG_TTRKL_MIN || minutes > PM8921_CHG_TTRKL_MAX) {
+ pr_err("bad max minutes =%d asked to set\n", minutes);
+ return -EINVAL;
+ }
+
+ temp = minutes - 1;
+ return pm_chg_masked_write(chip, CHG_TTRKL_MAX, PM8921_CHG_TTRKL_MASK,
+ temp);
+}
+
+#define PM8921_CHG_VTRKL_MIN_MV 2050
+#define PM8921_CHG_VTRKL_MAX_MV 2800
+#define PM8921_CHG_VTRKL_STEP_MV 50
+#define PM8921_CHG_VTRKL_SHIFT 4
+#define PM8921_CHG_VTRKL_MASK 0xF0
+static int pm_chg_vtrkl_low_set(struct pm8921_chg_chip *chip, int millivolts)
+{
+ u8 temp;
+
+ if (millivolts < PM8921_CHG_VTRKL_MIN_MV
+ || millivolts > PM8921_CHG_VTRKL_MAX_MV) {
+ pr_err("bad voltage = %dmV asked to set\n", millivolts);
+ return -EINVAL;
+ }
+
+ temp = (millivolts - PM8921_CHG_VTRKL_MIN_MV)/PM8921_CHG_VTRKL_STEP_MV;
+ temp = temp << PM8921_CHG_VTRKL_SHIFT;
+ return pm_chg_masked_write(chip, CHG_VTRICKLE, PM8921_CHG_VTRKL_MASK,
+ temp);
+}
+
+#define PM8921_CHG_VWEAK_MIN_MV 2100
+#define PM8921_CHG_VWEAK_MAX_MV 3600
+#define PM8921_CHG_VWEAK_STEP_MV 100
+#define PM8921_CHG_VWEAK_MASK 0x0F
+static int pm_chg_vweak_set(struct pm8921_chg_chip *chip, int millivolts)
+{
+ u8 temp;
+
+ if (millivolts < PM8921_CHG_VWEAK_MIN_MV
+ || millivolts > PM8921_CHG_VWEAK_MAX_MV) {
+ pr_err("bad voltage = %dmV asked to set\n", millivolts);
+ return -EINVAL;
+ }
+
+ temp = (millivolts - PM8921_CHG_VWEAK_MIN_MV)/PM8921_CHG_VWEAK_STEP_MV;
+ return pm_chg_masked_write(chip, CHG_VTRICKLE, PM8921_CHG_VWEAK_MASK,
+ temp);
+}
+
+#define PM8921_CHG_ITRKL_MIN_MA 50
+#define PM8921_CHG_ITRKL_MAX_MA 200
+#define PM8921_CHG_ITRKL_MASK 0x0F
+#define PM8921_CHG_ITRKL_STEP_MA 10
+static int pm_chg_itrkl_set(struct pm8921_chg_chip *chip, int milliamps)
+{
+ u8 temp;
+
+ if (milliamps < PM8921_CHG_ITRKL_MIN_MA
+ || milliamps > PM8921_CHG_ITRKL_MAX_MA) {
+ pr_err("bad current = %dmA asked to set\n", milliamps);
+ return -EINVAL;
+ }
+
+ temp = (milliamps - PM8921_CHG_ITRKL_MIN_MA)/PM8921_CHG_ITRKL_STEP_MA;
+
+ return pm_chg_masked_write(chip, CHG_ITRICKLE, PM8921_CHG_ITRKL_MASK,
+ temp);
+}
+
+#define PM8921_CHG_IWEAK_MIN_MA 325
+#define PM8921_CHG_IWEAK_MAX_MA 525
+#define PM8921_CHG_IWEAK_SHIFT 7
+#define PM8921_CHG_IWEAK_MASK 0x80
+static int pm_chg_iweak_set(struct pm8921_chg_chip *chip, int milliamps)
+{
+ u8 temp;
+
+ if (milliamps < PM8921_CHG_IWEAK_MIN_MA
+ || milliamps > PM8921_CHG_IWEAK_MAX_MA) {
+ pr_err("bad current = %dmA asked to set\n", milliamps);
+ return -EINVAL;
+ }
+
+ if (milliamps < PM8921_CHG_IWEAK_MAX_MA)
+ temp = 0;
+ else
+ temp = 1;
+
+ temp = temp << PM8921_CHG_IWEAK_SHIFT;
+ return pm_chg_masked_write(chip, CHG_ITRICKLE, PM8921_CHG_IWEAK_MASK,
+ temp);
+}
+
+#define PM8921_CHG_BATT_TEMP_THR_COLD BIT(1)
+#define PM8921_CHG_BATT_TEMP_THR_COLD_SHIFT 1
+static int pm_chg_batt_cold_temp_config(struct pm8921_chg_chip *chip,
+ enum pm8921_chg_cold_thr cold_thr)
+{
+ u8 temp;
+
+ temp = cold_thr << PM8921_CHG_BATT_TEMP_THR_COLD_SHIFT;
+ temp = temp & PM8921_CHG_BATT_TEMP_THR_COLD;
+ return pm_chg_masked_write(chip, CHG_CNTRL_2,
+ PM8921_CHG_BATT_TEMP_THR_COLD,
+ temp);
+}
+
+#define PM8921_CHG_BATT_TEMP_THR_HOT BIT(0)
+#define PM8921_CHG_BATT_TEMP_THR_HOT_SHIFT 0
+static int pm_chg_batt_hot_temp_config(struct pm8921_chg_chip *chip,
+ enum pm8921_chg_hot_thr hot_thr)
+{
+ u8 temp;
+
+ temp = hot_thr << PM8921_CHG_BATT_TEMP_THR_HOT_SHIFT;
+ temp = temp & PM8921_CHG_BATT_TEMP_THR_HOT;
+ return pm_chg_masked_write(chip, CHG_CNTRL_2,
+ PM8921_CHG_BATT_TEMP_THR_HOT,
+ temp);
+}
+
+static void disable_input_voltage_regulation(struct pm8921_chg_chip *chip)
+{
+ u8 temp;
+
+ pm8xxx_writeb(chip->dev->parent, CHG_BUCK_CTRL_TEST3, 0x70);
+ pm8xxx_readb(chip->dev->parent, CHG_BUCK_CTRL_TEST3, &temp);
+
+ temp |= 0x81;
+ pm8xxx_writeb(chip->dev->parent, CHG_BUCK_CTRL_TEST3, temp);
+}
+
+static void enable_input_voltage_regulation(struct pm8921_chg_chip *chip)
+{
+ u8 temp;
+
+ pm8xxx_writeb(chip->dev->parent, CHG_BUCK_CTRL_TEST3, 0x70);
+ pm8xxx_readb(chip->dev->parent, CHG_BUCK_CTRL_TEST3, &temp);
+
+ temp &= 0xFE;
+
+ temp |= 0x80;
+ pm8xxx_writeb(chip->dev->parent, CHG_BUCK_CTRL_TEST3, temp);
+}
+
+static int64_t read_battery_id(struct pm8921_chg_chip *chip)
+{
+ int rc;
+ struct pm8xxx_adc_chan_result result;
+
+ rc = pm8xxx_adc_read(chip->batt_id_channel, &result);
+ if (rc) {
+ pr_err("error reading batt id channel = %d, rc = %d\n",
+ chip->vbat_channel, rc);
+ return rc;
+ }
+ pr_debug("batt_id phy = %lld meas = 0x%llx\n", result.physical,
+ result.measurement);
+ return result.physical;
+}
+
+static int is_battery_valid(struct pm8921_chg_chip *chip)
+{
+ int64_t rc;
+
+ if (chip->batt_id_min == 0 && chip->batt_id_max == 0)
+ return 1;
+
+ rc = read_battery_id(chip);
+ if (rc < 0) {
+ pr_err("error reading batt id channel = %d, rc = %lld\n",
+ chip->vbat_channel, rc);
+
+ return 1;
+ }
+
+ if (rc < chip->batt_id_min || rc > chip->batt_id_max) {
+ pr_err("batt_id phy =%lld is not valid\n", rc);
+ return 0;
+ }
+ return 1;
+}
+
+static void check_battery_valid(struct pm8921_chg_chip *chip)
+{
+ if (is_battery_valid(chip) == 0) {
+ pr_err("batt_id not valid, disbling charging\n");
+ pm_chg_disable_auto_enable(chip, 1, BATT_CHG_DISABLED_BIT_BAT);
+ } else {
+ pm_chg_disable_auto_enable(chip, 0, BATT_CHG_DISABLED_BIT_BAT);
+ }
+}
+
+static void battery_id_valid(struct work_struct *work)
+{
+ struct pm8921_chg_chip *chip = container_of(work,
+ struct pm8921_chg_chip, battery_id_valid_work);
+
+ check_battery_valid(chip);
+}
+
+static void pm8921_chg_enable_irq(struct pm8921_chg_chip *chip, int interrupt)
+{
+ if (!__test_and_set_bit(interrupt, chip->enabled_irqs)) {
+ dev_dbg(chip->dev, "%d\n", chip->pmic_chg_irq[interrupt]);
+ enable_irq(chip->pmic_chg_irq[interrupt]);
+ }
+}
+
+static void pm8921_chg_disable_irq(struct pm8921_chg_chip *chip, int interrupt)
+{
+ if (__test_and_clear_bit(interrupt, chip->enabled_irqs)) {
+ dev_dbg(chip->dev, "%d\n", chip->pmic_chg_irq[interrupt]);
+ disable_irq_nosync(chip->pmic_chg_irq[interrupt]);
+ }
+}
+
+void pm8921_chg_enable_usbin_valid_irq(void)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return;
+ }
+ pm8921_chg_enable_irq(the_chip, USBIN_VALID_IRQ);
+}
+EXPORT_SYMBOL(pm8921_chg_enable_usbin_valid_irq);
+
+void pm8921_chg_disable_usbin_valid_irq(void)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return;
+ }
+ pm8921_chg_disable_irq(the_chip, USBIN_VALID_IRQ);
+}
+EXPORT_SYMBOL(pm8921_chg_disable_usbin_valid_irq);
+
+static int pm8921_chg_is_enabled(struct pm8921_chg_chip *chip, int interrupt)
+{
+ return test_bit(interrupt, chip->enabled_irqs);
+}
+
+static bool is_using_ext_charger(struct pm8921_chg_chip *chip)
+{
+ if (chip->ext_usb)
+ return true;
+
+ if (chip->ext)
+ return true;
+
+
+ return false;
+}
+
+static bool is_ext_charging(struct pm8921_chg_chip *chip)
+{
+
+ if ((chip->ext == NULL) && (chip->ext_usb == NULL))
+ return false;
+
+ if (chip->ext_charging || chip->ext_usb_charging)
+ return true;
+
+ return false;
+}
+
+static bool is_ext_trickle_charging(struct pm8921_chg_chip *chip)
+{
+ if (chip->ext == NULL)
+ return false;
+
+ if (chip->ext->is_trickle(chip->ext->ctx))
+ return true;
+
+ return false;
+}
+
+static int is_battery_charging(int fsm_state)
+{
+ if (is_ext_charging(the_chip))
+ return 1;
+
+ switch (fsm_state) {
+ case FSM_STATE_ATC_2A:
+ case FSM_STATE_ATC_2B:
+ case FSM_STATE_ON_CHG_AND_BAT_6:
+ case FSM_STATE_FAST_CHG_7:
+ case FSM_STATE_TRKL_CHG_8:
+ return 1;
+ }
+ return 0;
+}
+
+static void bms_notify(struct work_struct *work)
+{
+ struct bms_notify *n = container_of(work, struct bms_notify, work);
+
+ if (n->is_charging) {
+ pm8921_bms_charging_began();
+ } else {
+ pm8921_bms_charging_end(n->is_battery_full);
+ n->is_battery_full = 0;
+ }
+}
+
+static void bms_notify_check(struct pm8921_chg_chip *chip)
+{
+ int fsm_state, new_is_charging;
+
+ fsm_state = pm_chg_get_fsm_state(chip);
+ new_is_charging = is_battery_charging(fsm_state);
+
+ if (chip->bms_notify.is_charging ^ new_is_charging) {
+ chip->bms_notify.is_charging = new_is_charging;
+ schedule_work(&(chip->bms_notify.work));
+ }
+}
+
+static int get_prop_battery_uvolts(struct pm8921_chg_chip *chip)
+{
+ int rc;
+ struct pm8xxx_adc_chan_result result;
+
+ rc = pm8xxx_adc_read(chip->vbat_channel, &result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ chip->vbat_channel, rc);
+ return rc;
+ }
+ pr_debug("mvolts phy = %lld meas = 0x%llx\n", result.physical,
+ result.measurement);
+ return (int)result.physical;
+}
+
+static unsigned int voltage_based_capacity(struct pm8921_chg_chip *chip)
+{
+ unsigned int current_voltage_uv = get_prop_battery_uvolts(chip);
+ unsigned int current_voltage_mv = current_voltage_uv / 1000;
+ unsigned int low_voltage = chip->min_voltage_mv;
+ unsigned int high_voltage = chip->max_voltage_mv;
+
+ if (current_voltage_mv <= low_voltage)
+ return 0;
+ else if (current_voltage_mv >= high_voltage)
+ return 100;
+ else
+ return (current_voltage_mv - low_voltage) * 100
+ / (high_voltage - low_voltage);
+}
+
+static int get_prop_batt_capacity(struct pm8921_chg_chip *chip)
+{
+ int percent_soc = pm8921_bms_get_percent_charge();
+
+ if (percent_soc == -ENXIO)
+ percent_soc = voltage_based_capacity(chip);
+
+ if (percent_soc <= 10)
+ pr_warn("low battery charge = %d%%\n", percent_soc);
+
+
+ if (test_power_monitor) {
+ pr_info("soc=%d report 77(test_power_monitor)\n",
+ percent_soc);
+ percent_soc = 77;
+ }
+ if (percent_soc < 0) {
+ pr_warn("soc=%d is out of range!\n", percent_soc);
+ percent_soc = 0;
+ } else if (100 < percent_soc) {
+ pr_warn("soc=%d is out of range!\n", percent_soc);
+ percent_soc = 100;
+ }
+
+ return percent_soc;
+}
+
+static int get_prop_batt_current(struct pm8921_chg_chip *chip)
+{
+ int result_ua, rc;
+
+ rc = pm8921_bms_get_battery_current(&result_ua);
+ if (rc == -ENXIO)
+ rc = pm8xxx_ccadc_get_battery_current(&result_ua);
+
+ if (rc) {
+ pr_err("unable to get batt current rc = %d\n", rc);
+ return rc;
+ } else {
+ return result_ua;
+ }
+}
+
+static int get_prop_batt_fcc(struct pm8921_chg_chip *chip)
+{
+ int rc;
+
+ rc = pm8921_bms_get_fcc();
+ if (rc < 0)
+ pr_err("unable to get batt fcc rc = %d\n", rc);
+ return rc;
+}
+
+static int get_prop_batt_health(struct pm8921_chg_chip *chip)
+{
+ int temp;
+
+
+ if (test_power_monitor) {
+ pr_info("report HEALTH_GOOD(test_power_monitor)\n");
+ return POWER_SUPPLY_HEALTH_GOOD;
+ }
+
+ temp = pm_chg_get_rt_status(chip, BATTTEMP_HOT_IRQ);
+ if (temp){
+ pr_debug("ABHI bat overheat\n");
+ return POWER_SUPPLY_HEALTH_OVERHEAT;
+ }
+
+ temp = pm_chg_get_rt_status(chip, BATTTEMP_COLD_IRQ);
+ if (temp){
+ pr_debug("ABHI bat overcold\n");
+ return POWER_SUPPLY_HEALTH_COLD;
+ }
+
+ return POWER_SUPPLY_HEALTH_GOOD;
+}
+
+static int get_prop_batt_present(struct pm8921_chg_chip *chip)
+{
+
+ if (test_power_monitor) {
+ pr_info("report batt present (test_power_monitor)\n");
+ return 1;
+ }
+ return pm_chg_get_rt_status(chip, BATT_INSERTED_IRQ);
+}
+
+static int get_prop_charge_type(struct pm8921_chg_chip *chip)
+{
+ int temp;
+
+ if (!get_prop_batt_present(chip))
+ return POWER_SUPPLY_CHARGE_TYPE_NONE;
+
+ if (is_ext_trickle_charging(chip))
+ return POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
+
+ if (is_ext_charging(chip))
+ return POWER_SUPPLY_CHARGE_TYPE_FAST;
+
+ temp = pm_chg_get_rt_status(chip, TRKLCHG_IRQ);
+ if (temp){
+ pr_debug("ABHI %s trickle chg\n", __func__);
+ return POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
+ }
+
+ temp = pm_chg_get_rt_status(chip, FASTCHG_IRQ);
+ if (temp){
+ pr_debug("ABHI %s fast chg\n", __func__);
+ return POWER_SUPPLY_CHARGE_TYPE_FAST;
+ }
+
+ return POWER_SUPPLY_CHARGE_TYPE_NONE;
+}
+
+static int get_prop_batt_status(struct pm8921_chg_chip *chip)
+{
+ int batt_state = POWER_SUPPLY_STATUS_DISCHARGING;
+ int fsm_state = pm_chg_get_fsm_state(chip);
+ int i;
+
+ if (chip->ext_usb) {
+ if (chip->ext_usb_charge_done)
+ return POWER_SUPPLY_STATUS_FULL;
+ if (chip->ext_usb_charging)
+ return POWER_SUPPLY_STATUS_CHARGING;
+ }
+ if (chip->ext) {
+ if (chip->ext_charge_done)
+ return POWER_SUPPLY_STATUS_FULL;
+ if (chip->ext_charging)
+ return POWER_SUPPLY_STATUS_CHARGING;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(map); i++)
+ if (map[i].fsm_state == fsm_state)
+ batt_state = map[i].batt_state;
+
+ if (fsm_state == FSM_STATE_ON_CHG_HIGHI_1) {
+ if (!pm_chg_get_rt_status(chip, BATT_INSERTED_IRQ)
+ || !pm_chg_get_rt_status(chip, BAT_TEMP_OK_IRQ)
+ || pm_chg_get_rt_status(chip, CHGHOT_IRQ)
+ || pm_chg_get_rt_status(chip, VBATDET_LOW_IRQ))
+
+ batt_state = POWER_SUPPLY_STATUS_NOT_CHARGING;
+ }
+ pr_debug("ABHI %d\n",batt_state);
+ return batt_state;
+}
+
+static int get_prop_batt_temp(struct pm8921_chg_chip *chip)
+{
+ int rc;
+ struct pm8xxx_adc_chan_result result;
+
+ rc = pm8xxx_adc_read(chip->batt_temp_channel, &result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ chip->vbat_channel, rc);
+ return rc;
+ }
+ pr_debug("batt_temp phy = %lld meas = 0x%llx\n", result.physical,
+ result.measurement);
+
+
+ if (test_power_monitor) {
+ pr_info("temp=%d report 25 C(test_power_monitor)\n",
+ (int)result.physical);
+ return 250;
+ }
+
+ pr_debug("ABHI %d deci Deg Cel\n", (int)result.physical);
+ return (int)result.physical;
+}
+
+int pm8921_get_batt_voltage(int *result)
+{
+ int rc;
+ struct pm8xxx_adc_chan_result ch_result;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ rc = pm8xxx_adc_read(the_chip->vbat_channel, &ch_result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ the_chip->vbat_channel, rc);
+ return rc;
+ }
+ *result = ((int)ch_result.physical) / 1000;
+ pr_debug("batt_voltage phy = %lld meas = 0x%llx\n", ch_result.physical,
+ ch_result.measurement);
+ return rc;
+}
+
+int pm8921_get_batt_temperature(int *result)
+{
+ int rc;
+ struct pm8xxx_adc_chan_result ch_result;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ rc = pm8xxx_adc_read(the_chip->batt_temp_channel, &ch_result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ the_chip->batt_temp_channel, rc);
+ return rc;
+ }
+ *result = (int)ch_result.physical;
+ if ((*result >= 680) &&
+ (flag_keep_charge_on || flag_pa_recharge))
+ *result = 650;
+ pr_debug("batt_temp phy = %lld meas = 0x%llx\n", ch_result.physical,
+ ch_result.measurement);
+ return rc;
+}
+
+#define PM8921_CHARGER_HTC_FAKE_BATT_ID (1)
+int pm8921_get_batt_id(int *result)
+{
+ int rc = 0;
+ struct pm8xxx_adc_chan_result ch_result;
+ int id_raw_mv;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+
+ if (pm8xxx_get_revision(the_chip->dev->parent) < PM8XXX_REVISION_8921_2p0) {
+ *result = PM8921_CHARGER_HTC_FAKE_BATT_ID;
+ } else {
+ rc = pm8xxx_adc_read(the_chip->batt_id_channel, &ch_result);
+ if (rc) {
+ pr_err("error reading adc channel = %d, rc = %d\n",
+ the_chip->batt_id_channel, rc);
+ return rc;
+ }
+ pr_debug("batt_id phy = %lld meas = 0x%llx\n", ch_result.physical,
+ ch_result.measurement);
+ id_raw_mv = ((int)ch_result.physical) / 1000;
+
+ *result = htc_battery_cell_find_and_set_id_auto(id_raw_mv);
+ }
+ return rc;
+}
+
+int pm8921_is_batt_temperature_fault(int *result)
+{
+ int is_cold, is_warm;
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ is_cold = pm_chg_get_rt_status(the_chip, BATTTEMP_COLD_IRQ);
+ is_warm = pm8xxx_adc_btm_is_warm();
+
+ pr_debug("is_cold=%d,is_warm=%d\n", is_cold, is_warm);
+ if (is_cold || is_warm)
+ *result = 1;
+ else
+ *result = 0;
+ return 0;
+}
+
+int pm8921_is_batt_temp_fault_disable_chg(int *result)
+{
+ int is_cold, is_hot;
+ int is_warm, is_vbatdet_low;
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ if(the_chip->ext_usb)
+ {
+ if(the_chip->ext_usb->ichg->is_batt_temp_fault_disable_chg)
+ the_chip->ext_usb->ichg->is_batt_temp_fault_disable_chg(result);
+ return 0;
+ }
+
+
+ is_cold = pm_chg_get_rt_status(the_chip, BATTTEMP_COLD_IRQ);
+ is_hot = pm_chg_get_rt_status(the_chip, BATTTEMP_HOT_IRQ);
+ is_warm = pm8xxx_adc_btm_is_warm();
+ is_vbatdet_low = pm_chg_get_rt_status(the_chip, VBATDET_LOW_IRQ);
+
+ pr_debug("is_cold=%d, is_hot=%d, is_warm=%d, is_vbatdet_low=%d\n",
+ is_cold, is_hot, is_warm, is_vbatdet_low);
+ if ((is_cold || (is_hot && is_warm) || (is_warm && !is_vbatdet_low)) &&
+ !flag_keep_charge_on && !flag_pa_recharge)
+ *result = 1;
+ else
+ *result = 0;
+ return 0;
+}
+
+int pm8921_is_batt_full(int *result)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ *result = is_batt_full;
+ return 0;
+}
+int pm8921_gauge_get_attr_text(char *buf, int size)
+{
+ int len = 0;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ len += scnprintf(buf + len, size - len,
+ "SOC(%%): %d;\n"
+ "EOC(bool): %d;\n"
+ "OVP(bool): %d;\n"
+ "UVP(bool): %d;\n"
+ "VBAT(uV): %d;\n"
+ "IBAT(uA): %d;\n"
+ "ID_RAW(uV): %d;\n"
+ "BATT_TEMP(deci-celsius): %d;\n"
+ "is_bat_warm(bool): %d\n"
+ "is_bat_cool(bool): %d\n"
+ "BTM_WARM_IRQ: %d\n"
+ "BTM_COOL_IRQ: %d\n"
+ "BATT_PRESENT(bool): %d;\n"
+ "FCC(uAh): %d;\n"
+ "usb_target_ma(mA): %d;\n",
+ pm8921_bms_get_percent_charge(),
+ is_batt_full,
+ ovp,
+ uvp,
+ get_prop_battery_uvolts(the_chip),
+ get_prop_batt_current(the_chip),
+ (int)read_battery_id(the_chip),
+ get_prop_batt_temp(the_chip),
+ the_chip->is_bat_warm,
+ the_chip->is_bat_cool,
+ pm8xxx_adc_btm_is_warm(),
+ pm8xxx_adc_btm_is_cool(),
+ get_prop_batt_present(the_chip),
+ pm8921_bms_get_fcc(),
+ usb_target_ma
+ );
+
+ len += pm8921_bms_get_attr_text(buf + len, size - len);
+
+ return len;
+}
+int pm8921_pwrsrc_enable(bool enable)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ if(the_chip->ext_usb)
+ {
+ if(the_chip->ext_usb->ichg->set_pwrsrc_enable)
+ return the_chip->ext_usb->ichg->set_pwrsrc_enable(enable);
+ }
+
+ return pm_chg_disable_pwrsrc(the_chip, !enable, PWRSRC_DISABLED_BIT_KDRV);
+}
+EXPORT_SYMBOL(pm8921_pwrsrc_enable);
+
+int pm8921_get_charging_source(int *result)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ if(the_chip->ext_usb)
+ {
+ if(the_chip->ext_usb->ichg->get_charging_source)
+ the_chip->ext_usb->ichg->get_charging_source(result);
+ return 0;
+ }
+
+ *result = pwr_src;
+
+
+ return 0;
+}
+
+int pm8921_get_charging_enabled(int *result)
+{
+ int fsm_state;
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ if(the_chip->ext_usb)
+ {
+ if(the_chip->ext_usb->ichg->get_charging_enabled)
+ return the_chip->ext_usb->ichg->get_charging_enabled(result);
+ }
+
+ fsm_state = pm_chg_get_fsm_state(the_chip);
+ if (is_battery_charging(fsm_state))
+ return pm8921_get_charging_source(result);
+ else
+ *result = HTC_PWR_SOURCE_TYPE_BATT;
+ return 0;
+}
+
+int pm8921_is_charger_ovp(int* result)
+{
+ int ov, uv, v;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ ov = pm_chg_get_rt_status(the_chip, USBIN_OV_IRQ);
+ v = pm_chg_get_rt_status(the_chip, USBIN_VALID_IRQ);
+ uv = pm_chg_get_rt_status(the_chip, USBIN_UV_IRQ);
+ pr_info("usbin_ov_irq_state:%d -> %d [%d,%d,%d]\n",
+ usbin_ov_irq_state, ov, ov, v, uv);
+ usbin_ov_irq_state = ov;
+ update_ovp_uvp_state(ov, v, uv);
+ *result = ovp;
+
+ if(the_chip->ext_usb)
+ {
+ if(the_chip->ext_usb->ichg->is_ovp)
+ the_chip->ext_usb->ichg->is_ovp(result);
+ }
+
+ return 0;
+}
+
+int pm8921_charger_get_attr_text_with_ext_charger(char *buf, int size)
+{
+ int rc;
+ int len = 0;
+ struct pm8xxx_adc_chan_result result;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ len += scnprintf(buf + len, size - len,
+ "FSM: %d;\n"
+ "ATCDONE_IRQ: %d;\n"
+ "ATCFAIL_IRQ: %d;\n"
+ "BATFET_IRQ: %d;\n"
+ "BATTTEMP_COLD_IRQ: %d;\n"
+ "BATTTEMP_HOT_IRQ: %d;\n"
+ "BATT_INSERTED_IRQ: %d;\n"
+ "BATT_REMOVED_IRQ: %d;\n"
+ "BAT_TEMP_OK_IRQ: %d;\n"
+ "DCIN_UV_IRQ: %d;\n"
+ "DCIN_VALID_IRQ: %d;\n"
+ "LOOP_CHANGE_IRQ: %d;\n"
+ "TRKLCHG_IRQ: %d;\n"
+ "USBIN_OV_IRQ: %d;\n"
+ "USBIN_UV_IRQ: %d;\n"
+ "USBIN_VALID_IRQ: %d;\n"
+ "VBATDET_IRQ: %d;\n"
+ "VBATDET_LOW_IRQ: %d;\n"
+ "VBAT_OV_IRQ: %d;\n"
+ "VCP_IRQ: %d;\n"
+ "VDD_LOOP_IRQ: %d;\n"
+ "VREG_OV_IRQ: %d;\n"
+ "REGULATION_LOOP: 0x%02x\n",
+ pm_chg_get_fsm_state(the_chip),
+ pm_chg_get_rt_status(the_chip, ATCDONE_IRQ),
+ pm_chg_get_rt_status(the_chip, ATCFAIL_IRQ),
+ pm_chg_get_rt_status(the_chip, BATFET_IRQ),
+ pm_chg_get_rt_status(the_chip, BATTTEMP_COLD_IRQ),
+ pm_chg_get_rt_status(the_chip, BATTTEMP_HOT_IRQ),
+ pm_chg_get_rt_status(the_chip, BATT_INSERTED_IRQ),
+ pm_chg_get_rt_status(the_chip, BATT_REMOVED_IRQ),
+ pm_chg_get_rt_status(the_chip, BAT_TEMP_OK_IRQ),
+ pm_chg_get_rt_status(the_chip, DCIN_UV_IRQ),
+ pm_chg_get_rt_status(the_chip, DCIN_VALID_IRQ),
+ pm_chg_get_rt_status(the_chip, LOOP_CHANGE_IRQ),
+ pm_chg_get_rt_status(the_chip, TRKLCHG_IRQ),
+ pm_chg_get_rt_status(the_chip, USBIN_OV_IRQ),
+ pm_chg_get_rt_status(the_chip, USBIN_UV_IRQ),
+ pm_chg_get_rt_status(the_chip, USBIN_VALID_IRQ),
+ pm_chg_get_rt_status(the_chip, VBATDET_IRQ),
+ pm_chg_get_rt_status(the_chip, VBATDET_LOW_IRQ),
+ pm_chg_get_rt_status(the_chip, VBAT_OV_IRQ),
+ pm_chg_get_rt_status(the_chip, VCP_IRQ),
+ pm_chg_get_rt_status(the_chip, VDD_LOOP_IRQ),
+ pm_chg_get_rt_status(the_chip, VREG_OV_IRQ),
+ pm_chg_get_regulation_loop(the_chip)
+ );
+
+ rc = pm8xxx_adc_read(CHANNEL_USBIN, &result);
+ if (rc) {
+ pr_err("error reading i_chg channel = %d, rc = %d\n",
+ CHANNEL_USBIN, rc);
+ }
+
+ len += scnprintf(buf + len, size - len,
+ "USBIN(uV): %d;\n", (int)result.physical);
+
+ pr_info("USBIN(uV): %d;\n", (int)result.physical);
+
+ if(the_chip->ext_usb)
+ {
+ if(the_chip->ext_usb->ichg->get_attr_text)
+ len += the_chip->ext_usb->ichg->get_attr_text(buf+len, size);
+ }
+
+ return len;
+}
+
+
+int pm8921_charger_get_attr_text(char *buf, int size)
+{
+ int rc;
+ struct pm8xxx_adc_chan_result result;
+ int len = 0;
+ u64 val = 0;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ len += scnprintf(buf + len, size - len,
+ "FSM: %d;\n"
+ "ATCDONE_IRQ: %d;\n"
+ "ATCFAIL_IRQ: %d;\n"
+ "BATFET_IRQ: %d;\n"
+ "BATTTEMP_COLD_IRQ: %d;\n"
+ "BATTTEMP_HOT_IRQ: %d;\n"
+ "BATT_INSERTED_IRQ: %d;\n"
+ "BATT_REMOVED_IRQ: %d;\n"
+ "BAT_TEMP_OK_IRQ: %d;\n"
+ "CHGDONE_IRQ: %d;\n"
+ "CHGFAIL_IRQ: %d;\n"
+ "CHGHOT_IRQ: %d;\n"
+ "CHGSTATE_IRQ: %d;\n"
+ "CHGWDOG_IRQ: %d;\n"
+ "CHG_GONE_IRQ: %d;\n"
+ "COARSE_DET_LOW_IRQ: %d;\n"
+ "DCIN_OV_IRQ: %d;\n"
+ "DCIN_UV_IRQ: %d;\n"
+ "DCIN_VALID_IRQ: %d;\n"
+ "USBIN_OV_IRQ: %d;\n"
+ "USBIN_UV_IRQ: %d;\n"
+ "USBIN_VALID_IRQ: %d;\n"
+ "FASTCHG_IRQ: %d;\n"
+ "LOOP_CHANGE_IRQ: %d;\n"
+ "TRKLCHG_IRQ: %d;\n"
+ "VBATDET_IRQ: %d;\n"
+ "VBATDET_LOW_IRQ: %d;\n"
+ "VBAT_OV_IRQ: %d;\n"
+ "VCP_IRQ: %d;\n"
+ "VDD_LOOP_IRQ: %d;\n"
+ "VREG_OV_IRQ: %d;\n"
+ "REGULATION_LOOP: 0x%02x\n",
+ pm_chg_get_fsm_state(the_chip),
+ pm_chg_get_rt_status(the_chip, ATCDONE_IRQ),
+ pm_chg_get_rt_status(the_chip, ATCFAIL_IRQ),
+ pm_chg_get_rt_status(the_chip, BATFET_IRQ),
+ pm_chg_get_rt_status(the_chip, BATTTEMP_COLD_IRQ),
+ pm_chg_get_rt_status(the_chip, BATTTEMP_HOT_IRQ),
+ pm_chg_get_rt_status(the_chip, BATT_INSERTED_IRQ),
+ pm_chg_get_rt_status(the_chip, BATT_REMOVED_IRQ),
+ pm_chg_get_rt_status(the_chip, BAT_TEMP_OK_IRQ),
+ pm_chg_get_rt_status(the_chip, CHGDONE_IRQ),
+ pm_chg_get_rt_status(the_chip, CHGFAIL_IRQ),
+ pm_chg_get_rt_status(the_chip, CHGHOT_IRQ),
+ pm_chg_get_rt_status(the_chip, CHGSTATE_IRQ),
+ pm_chg_get_rt_status(the_chip, CHGWDOG_IRQ),
+ pm_chg_get_rt_status(the_chip, CHG_GONE_IRQ),
+ pm_chg_get_rt_status(the_chip, COARSE_DET_LOW_IRQ),
+ pm_chg_get_rt_status(the_chip, DCIN_OV_IRQ),
+ pm_chg_get_rt_status(the_chip, DCIN_UV_IRQ),
+ pm_chg_get_rt_status(the_chip, DCIN_VALID_IRQ),
+ pm_chg_get_rt_status(the_chip, USBIN_OV_IRQ),
+ pm_chg_get_rt_status(the_chip, USBIN_UV_IRQ),
+ pm_chg_get_rt_status(the_chip, USBIN_VALID_IRQ),
+ pm_chg_get_rt_status(the_chip, FASTCHG_IRQ),
+ pm_chg_get_rt_status(the_chip, LOOP_CHANGE_IRQ),
+ pm_chg_get_rt_status(the_chip, TRKLCHG_IRQ),
+ pm_chg_get_rt_status(the_chip, VBATDET_IRQ),
+ pm_chg_get_rt_status(the_chip, VBATDET_LOW_IRQ),
+ pm_chg_get_rt_status(the_chip, VBAT_OV_IRQ),
+ pm_chg_get_rt_status(the_chip, VCP_IRQ),
+ pm_chg_get_rt_status(the_chip, VDD_LOOP_IRQ),
+ pm_chg_get_rt_status(the_chip, VREG_OV_IRQ),
+ pm_chg_get_regulation_loop(the_chip)
+ );
+
+ rc = pm8xxx_adc_read(CHANNEL_USBIN, &result);
+ if (rc) {
+ pr_err("error reading i_chg channel = %d, rc = %d\n",
+ CHANNEL_USBIN, rc);
+ }
+
+ len += scnprintf(buf + len, size - len,
+ "USBIN(uV): %d;\n", (int)result.physical);
+
+ rc = pm8xxx_adc_read(CHANNEL_VPH_PWR, &result);
+ if (rc) {
+ pr_err("error reading vph_pwr channel = %d, rc = %d\n",
+ CHANNEL_VPH_PWR, rc);
+ }
+ len += scnprintf(buf + len, size - len,
+ "VPH_PWR(uV): %d;\n", (int)result.physical);
+
+ len += scnprintf(buf + len, size - len,
+ "AC_SAFETY_TIMEOUT(bool): %d;\n", (int)is_ac_safety_timeout);
+
+ len += scnprintf(buf + len, size - len,
+ "AC_SAFETY_TIMEOUT2(bool): %d;\n", (int)is_ac_safety_timeout_twice);
+
+ len += scnprintf(buf + len, size - len,
+ "mitigation_level(int): %d;\n", thermal_mitigation);
+
+ len += scnprintf(buf + len, size - len,
+ "eoc_count(int): %d;\n", eoc_count);
+
+ get_reg((void *)CHG_CNTRL, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_CNTRL: 0x%llx;\n", val);
+ get_reg((void *)CHG_CNTRL_2, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_CNTRL_2: 0x%llx;\n", val);
+ get_reg((void *)CHG_CNTRL_3, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_CNTRL_3: 0x%llx;\n", val);
+ get_reg((void *)PBL_ACCESS1, &val);
+ len += scnprintf(buf + len, size - len,
+ "PBL_ACCESS1: 0x%llx;\n", val);
+ get_reg((void *)PBL_ACCESS2, &val);
+ len += scnprintf(buf + len, size - len,
+ "PBL_ACCESS2: 0x%llx;\n", val);
+ get_reg((void *)SYS_CONFIG_1, &val);
+ len += scnprintf(buf + len, size - len,
+ "SYS_CONFIG_1: 0x%llx;\n", val);
+ get_reg((void *)SYS_CONFIG_2, &val);
+ len += scnprintf(buf + len, size - len,
+ "SYS_CONFIG_2: 0x%llx;\n", val);
+ get_reg((void *)CHG_IBAT_MAX, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_IBAT_MAX: 0x%llx;\n", val);
+ get_reg((void *)CHG_IBAT_SAFE, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_IBAT_SAFE: 0x%llx;\n", val);
+ get_reg((void *)CHG_VDD_MAX, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_VDD_MAX: 0x%llx;\n", val);
+ get_reg((void *)CHG_VDD_SAFE, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_VDD_SAFE: 0x%llx;\n", val);
+ get_reg((void *)CHG_VBAT_DET, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_VBAT_DET: 0x%llx;\n", val);
+ get_reg((void *)CHG_VIN_MIN, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_VIN_MIN: 0x%llx;\n", val);
+ get_reg((void *)CHG_VTRICKLE, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_VTRICKLE: 0x%llx;\n", val);
+ get_reg((void *)CHG_ITRICKLE, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_ITRICKLE: 0x%llx;\n", val);
+ get_reg((void *)CHG_ITERM, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_ITERM: 0x%llx;\n", val);
+ get_reg((void *)CHG_TCHG_MAX, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_TCHG_MAX: 0x%llx;\n", val);
+ get_reg((void *)CHG_TWDOG, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_TWDOG: 0x%llx;\n", val);
+ get_reg((void *)CHG_TEMP_THRESH, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_TEMP_THRESH: 0x%llx;\n", val);
+ get_reg((void *)CHG_COMP_OVR, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_COMP_OVR: 0x%llx;\n", val);
+ get_reg((void *)CHG_BUCK_CTRL_TEST1, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_BUCK_CTRL_TEST1: 0x%llx;\n", val);
+ get_reg((void *)CHG_BUCK_CTRL_TEST2, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_BUCK_CTRL_TEST2: 0x%llx;\n", val);
+ get_reg((void *)CHG_BUCK_CTRL_TEST3, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_BUCK_CTRL_TEST3: 0x%llx;\n", val);
+ get_reg((void *)CHG_TEST, &val);
+ len += scnprintf(buf + len, size - len,
+ "CHG_TEST: 0x%llx;\n", val);
+ get_reg((void *)USB_OVP_CONTROL, &val);
+ len += scnprintf(buf + len, size - len,
+ "USB_OVP_CONTROL: 0x%llx;\n", val);
+ get_reg((void *)USB_OVP_TEST, &val);
+ len += scnprintf(buf + len, size - len,
+ "USB_OVP_TEST: 0x%llx;\n", val);
+ get_reg((void *)DC_OVP_CONTROL, &val);
+ len += scnprintf(buf + len, size - len,
+ "DC_OVP_CONTROL: 0x%llx;\n", val);
+ get_reg((void *)DC_OVP_TEST, &val);
+ len += scnprintf(buf + len, size - len,
+ "DC_OVP_TEST: 0x%llx;\n", val);
+
+ return len;
+}
+
+static void (*notify_vbus_state_func_ptr)(int);
+static int usb_chg_current;
+static DEFINE_SPINLOCK(vbus_lock);
+
+int pm8921_charger_register_vbus_sn(void (*callback)(int))
+{
+ pr_debug("%p\n", callback);
+ notify_vbus_state_func_ptr = callback;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(pm8921_charger_register_vbus_sn);
+
+void pm8921_charger_unregister_vbus_sn(void (*callback)(int))
+{
+ pr_debug("%p\n", callback);
+ notify_vbus_state_func_ptr = NULL;
+}
+EXPORT_SYMBOL_GPL(pm8921_charger_unregister_vbus_sn);
+
+static void notify_usb_of_the_plugin_event(int plugin)
+{
+ plugin = !!plugin;
+ if (notify_vbus_state_func_ptr) {
+ pr_debug("notifying plugin\n");
+ (*notify_vbus_state_func_ptr) (plugin);
+ } else {
+ pr_debug("unable to notify plugin\n");
+ }
+}
+
+static void __pm8921_charger_vbus_draw(unsigned int mA)
+{
+ int i, rc;
+
+ if (mA > 0 && mA <= 2) {
+ usb_chg_current = 0;
+ rc = pm_chg_iusbmax_set(the_chip, 0);
+ if (rc)
+ pr_err("unable to set iusb to %d rc = %d\n", 0, rc);
+ rc = pm_chg_usb_suspend_enable(the_chip, 1);
+ if (rc)
+ pr_err("fail to set suspend bit rc=%d\n", rc);
+ } else {
+ rc = pm_chg_usb_suspend_enable(the_chip, 0);
+ if (rc)
+ pr_err("fail to reset suspend bit rc=%d\n", rc);
+ for (i = ARRAY_SIZE(usb_ma_table) - 1; i >= 0; i--) {
+ if (usb_ma_table[i].usb_ma <= mA)
+ break;
+ }
+ if (i < 0)
+ i = 0;
+ rc = pm_chg_iusbmax_set(the_chip, i);
+ if (rc)
+ pr_err("unable to set iusb to %d rc = %d\n", i, rc);
+ }
+}
+
+#define USB_WALL_THRESHOLD_MA (1500)
+static void _pm8921_charger_vbus_draw(unsigned int mA)
+{
+ unsigned long flags;
+
+ if (usb_max_current && mA > usb_max_current) {
+ pr_warn("restricting usb current to %d instead of %d\n",
+ usb_max_current, mA);
+ mA = usb_max_current;
+ }
+ if (usb_target_ma == 0 && mA > USB_WALL_THRESHOLD_MA)
+ usb_target_ma = mA;
+
+ spin_lock_irqsave(&vbus_lock, flags);
+ if (the_chip) {
+ if (mA > USB_WALL_THRESHOLD_MA)
+ __pm8921_charger_vbus_draw(USB_WALL_THRESHOLD_MA);
+ else
+ __pm8921_charger_vbus_draw(mA);
+ } else {
+ if (mA > USB_WALL_THRESHOLD_MA)
+ usb_chg_current = USB_WALL_THRESHOLD_MA;
+ else
+ usb_chg_current = mA;
+ }
+ spin_unlock_irqrestore(&vbus_lock, flags);
+}
+
+static void handle_usb_present_change(struct pm8921_chg_chip *chip,
+ int usb_present)
+{
+ int rc = 0;
+
+ if (pm_chg_failed_clear(chip, 1))
+ pr_err("Failed to write CHG_FAILED_CLEAR bit\n");
+ if (chip->usb_present ^ usb_present) {
+ pr_info("vbus present change: %d -> %d\n",
+ chip->usb_present, usb_present);
+ chip->usb_present = usb_present;
+
+ if (usb_present) {
+ is_cable_remove = false;
+ } else {
+ rc = pm_chg_disable_auto_enable(chip, 0, BATT_CHG_DISABLED_BIT_EOC);
+ if (rc)
+ pr_err("Failed to set auto_enable rc=%d\n", rc);
+
+ is_batt_full = false;
+ eoc_count = 0;
+ is_ac_safety_timeout = is_ac_safety_timeout_twice = false;
+ is_cable_remove = true;
+
+ pr_info("Set vbatdet=%d after cable out\n",
+ PM8921_CHG_VBATDET_MAX);
+ rc = pm_chg_vbatdet_set(chip, PM8921_CHG_VBATDET_MAX);
+ if (rc)
+ pr_err("Failed to set vbatdet=%d rc=%d\n",
+ PM8921_CHG_VBATDET_MAX, rc);
+ }
+ usbin_ov_irq_handler(chip->pmic_chg_irq[USBIN_OV_IRQ], chip);
+ }
+
+ if (usb_present) {
+ schedule_delayed_work(&chip->unplug_check_work,
+ round_jiffies_relative(msecs_to_jiffies
+ (UNPLUG_CHECK_WAIT_PERIOD_MS)));
+ pm8921_chg_enable_irq(chip, CHG_GONE_IRQ);
+ } else {
+
+ usb_target_ma = 0;
+ pm8921_chg_disable_irq(chip, CHG_GONE_IRQ);
+ }
+ enable_input_voltage_regulation(chip);
+
+ bms_notify_check(chip);
+}
+
+static u32 htc_fake_charger_for_testing(enum htc_power_source_type src)
+{
+
+ enum htc_power_source_type new_src = HTC_PWR_SOURCE_TYPE_AC;
+
+ if((src > HTC_PWR_SOURCE_TYPE_9VAC) || (src == HTC_PWR_SOURCE_TYPE_BATT))
+ return src;
+
+ pr_info("%s(%d -> %d)\n", __func__, src , new_src);
+ return new_src;
+}
+
+
+int pm8921_set_pwrsrc_and_charger_enable(enum htc_power_source_type src,
+ bool chg_enable, bool pwrsrc_enable)
+{
+ int mA = 0;
+ int rc = 0;
+
+ pr_info("src=%d, chg_enable=%d, pwrsrc_enable=%d\n",
+ src, chg_enable, pwrsrc_enable);
+
+ if (get_kernel_flag() & KERNEL_FLAG_ENABLE_FAST_CHARGE)
+ src = htc_fake_charger_for_testing(src);
+
+
+ pwr_src = src;
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ if(the_chip->ext_usb)
+ {
+ if(the_chip->ext_usb->ichg->set_pwrsrc_and_charger_enable)
+ rc = the_chip->ext_usb->ichg->set_pwrsrc_and_charger_enable(src, chg_enable, pwrsrc_enable);
+
+ if(chg_enable)
+ {
+ if (!flag_disable_wakelock)
+ wake_lock(&the_chip->eoc_wake_lock);
+
+ schedule_delayed_work(&the_chip->eoc_work,
+ round_jiffies_relative(msecs_to_jiffies
+ (EOC_CHECK_PERIOD_MS)));
+
+ pr_info("schedule_delayed_work(&the_chip->eoc_wora)k\n");
+
+ }
+ return rc;
+ }
+
+
+ pm_chg_disable_pwrsrc(the_chip, !pwrsrc_enable, PWRSRC_DISABLED_BIT_KDRV);
+
+
+ pm_chg_disable_auto_enable(the_chip, !chg_enable,
+ BATT_CHG_DISABLED_BIT_KDRV);
+
+
+ switch (src) {
+ case HTC_PWR_SOURCE_TYPE_BATT:
+ mA = USB_MA_2;
+ break;
+ case HTC_PWR_SOURCE_TYPE_WIRELESS:
+ if (pm8921_is_dc_chg_plugged_in()) {
+ pr_info("Wireless charger is from DC_IN\n");
+ mA = USB_MA_1100;
+ } else
+ mA = USB_MA_500;
+ break;
+ case HTC_PWR_SOURCE_TYPE_USB:
+ mA = USB_MA_500;
+ break;
+ case HTC_PWR_SOURCE_TYPE_AC:
+ case HTC_PWR_SOURCE_TYPE_9VAC:
+ case HTC_PWR_SOURCE_TYPE_MHL_AC:
+ mA = USB_MA_1100;
+ break;
+ default:
+ mA = USB_MA_2;
+ break;
+ }
+ _pm8921_charger_vbus_draw(mA);
+ if (HTC_PWR_SOURCE_TYPE_BATT == src)
+ handle_usb_present_change(the_chip, 0);
+ else
+ handle_usb_present_change(the_chip, 1);
+
+ return rc;
+}
+EXPORT_SYMBOL(pm8921_set_pwrsrc_and_charger_enable);
+
+void pm8921_charger_vbus_draw(unsigned int mA)
+{
+ unsigned long flags;
+
+ pr_info("Enter charge=%d (deprecated api)\n", mA);
+ return;
+
+ if (usb_max_current && mA > usb_max_current) {
+ pr_warn("restricting usb current to %d instead of %d\n",
+ usb_max_current, mA);
+ mA = usb_max_current;
+ }
+ if (usb_target_ma == 0 && mA > USB_WALL_THRESHOLD_MA)
+ usb_target_ma = mA;
+
+ spin_lock_irqsave(&vbus_lock, flags);
+ if (the_chip) {
+ if (mA > USB_WALL_THRESHOLD_MA)
+ __pm8921_charger_vbus_draw(USB_WALL_THRESHOLD_MA);
+ else
+ __pm8921_charger_vbus_draw(mA);
+ } else {
+ if (mA > USB_WALL_THRESHOLD_MA)
+ usb_chg_current = USB_WALL_THRESHOLD_MA;
+ else
+ usb_chg_current = mA;
+ }
+ spin_unlock_irqrestore(&vbus_lock, flags);
+}
+EXPORT_SYMBOL_GPL(pm8921_charger_vbus_draw);
+
+int pm8921_charger_enable(bool enable)
+{
+ int rc = 0;
+
+
+ if(the_chip->ext_usb)
+ {
+ if(the_chip->ext_usb->ichg->set_charger_enable)
+ {
+ rc = the_chip->ext_usb->ichg->set_charger_enable(enable);
+ return rc;
+ }
+ }
+
+ if (the_chip) {
+ enable = !!enable;
+ rc = pm_chg_disable_auto_enable(the_chip, !enable, BATT_CHG_DISABLED_BIT_KDRV);
+ } else {
+ pr_err("called before init\n");
+ rc = -EINVAL;
+ }
+
+
+
+ return rc;
+}
+EXPORT_SYMBOL(pm8921_charger_enable);
+
+int pm8921_is_usb_chg_plugged_in(void)
+{
+ if (!the_chip) {
+ pr_warn("%s: warn: called before init\n", __func__);
+ return -EINVAL;
+ }
+ return is_usb_chg_plugged_in(the_chip);
+}
+EXPORT_SYMBOL(pm8921_is_usb_chg_plugged_in);
+
+int pm8921_is_dc_chg_plugged_in(void)
+{
+ if (!the_chip) {
+ pr_warn("%s: warn: called before init\n", __func__);
+ return -EINVAL;
+ }
+ return is_dc_chg_plugged_in(the_chip);
+}
+EXPORT_SYMBOL(pm8921_is_dc_chg_plugged_in);
+
+int pm8921_is_pwr_src_plugged_in(void)
+{
+ int usb_in, dc_in;
+
+ usb_in = pm8921_is_usb_chg_plugged_in();
+ dc_in = pm8921_is_dc_chg_plugged_in();
+ pr_info("%s: usb_in=%d, dc_in=%d\n", __func__, usb_in, dc_in);
+ if (usb_in ^ dc_in)
+ return 1;
+ else if (usb_in & dc_in)
+ pr_warn("%s: Abnormal interrupt due to usb_in & dc_in"
+ " is existed together\n", __func__);
+ return 0;
+}
+EXPORT_SYMBOL(pm8921_is_pwr_src_plugged_in);
+
+int pm8921_is_battery_present(void)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ return get_prop_batt_present(the_chip);
+}
+EXPORT_SYMBOL(pm8921_is_battery_present);
+
+int pm8921_disable_input_current_limit(bool disable)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ if (disable) {
+ pr_warn("Disabling input current limit!\n");
+
+ return pm8xxx_writeb(the_chip->dev->parent,
+ CHG_BUCK_CTRL_TEST3, 0xF2);
+ }
+ return 0;
+}
+EXPORT_SYMBOL(pm8921_disable_input_current_limit);
+
+int pm8921_set_max_battery_charge_current(int ma)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ return pm_chg_ibatmax_set(the_chip, ma);
+}
+EXPORT_SYMBOL(pm8921_set_max_battery_charge_current);
+
+int pm8921_disable_source_current(bool disable)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ if (disable)
+ pr_warn("current drawn from chg=0, battery provides current\n");
+ return pm_chg_disable_pwrsrc(the_chip, disable, PWRSRC_DISABLED_BIT_KDRV);
+}
+EXPORT_SYMBOL(pm8921_disable_source_current);
+
+int pm8921_regulate_input_voltage(int voltage)
+{
+ int rc;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ rc = pm_chg_vinmin_set(the_chip, voltage);
+
+ if (rc == 0)
+ the_chip->vin_min = voltage;
+
+ return rc;
+}
+
+#define USB_OV_THRESHOLD_MASK 0x60
+#define USB_OV_THRESHOLD_SHIFT 5
+int pm8921_usb_ovp_set_threshold(enum pm8921_usb_ov_threshold ov)
+{
+ u8 temp;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ if (ov > PM_USB_OV_7V) {
+ pr_err("limiting to over voltage threshold to 7volts\n");
+ ov = PM_USB_OV_7V;
+ }
+
+ temp = USB_OV_THRESHOLD_MASK & (ov << USB_OV_THRESHOLD_SHIFT);
+
+ return pm_chg_masked_write(the_chip, USB_OVP_CONTROL,
+ USB_OV_THRESHOLD_MASK, temp);
+}
+EXPORT_SYMBOL(pm8921_usb_ovp_set_threshold);
+
+#define USB_DEBOUNCE_TIME_MASK 0x06
+#define USB_DEBOUNCE_TIME_SHIFT 1
+int pm8921_usb_ovp_set_hystersis(enum pm8921_usb_debounce_time ms)
+{
+ u8 temp;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ if (ms > PM_USB_DEBOUNCE_80P5MS) {
+ pr_err("limiting debounce to 80.5ms\n");
+ ms = PM_USB_DEBOUNCE_80P5MS;
+ }
+
+ temp = USB_DEBOUNCE_TIME_MASK & (ms << USB_DEBOUNCE_TIME_SHIFT);
+
+ return pm_chg_masked_write(the_chip, USB_OVP_CONTROL,
+ USB_DEBOUNCE_TIME_MASK, temp);
+}
+EXPORT_SYMBOL(pm8921_usb_ovp_set_hystersis);
+
+#define USB_OVP_DISABLE_MASK 0x80
+int pm8921_usb_ovp_disable(int disable)
+{
+ u8 temp = 0;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ if (disable)
+ temp = USB_OVP_DISABLE_MASK;
+
+ return pm_chg_masked_write(the_chip, USB_OVP_CONTROL,
+ USB_OVP_DISABLE_MASK, temp);
+}
+
+bool pm8921_is_battery_charging(int *source)
+{
+ int fsm_state, is_charging, dc_present, usb_present;
+
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ fsm_state = pm_chg_get_fsm_state(the_chip);
+ is_charging = is_battery_charging(fsm_state);
+ if (is_charging == 0) {
+ *source = PM8921_CHG_SRC_NONE;
+ return is_charging;
+ }
+
+ if (source == NULL)
+ return is_charging;
+
+
+ dc_present = is_dc_chg_plugged_in(the_chip);
+ usb_present = is_usb_chg_plugged_in(the_chip);
+
+ if (dc_present && !usb_present)
+ *source = PM8921_CHG_SRC_DC;
+
+ if (usb_present && !dc_present)
+ *source = PM8921_CHG_SRC_USB;
+
+ if (usb_present && dc_present)
+ *source = PM8921_CHG_SRC_DC;
+
+ return is_charging;
+}
+EXPORT_SYMBOL(pm8921_is_battery_charging);
+
+int pm8921_set_usb_power_supply_type(enum power_supply_type type)
+{
+#if 1
+ return 0;
+#else
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ if (type < POWER_SUPPLY_TYPE_USB)
+ return -EINVAL;
+
+ the_chip->usb_psy.type = type;
+ power_supply_changed(&the_chip->usb_psy);
+ power_supply_changed(&the_chip->dc_psy);
+ return 0;
+#endif
+}
+EXPORT_SYMBOL_GPL(pm8921_set_usb_power_supply_type);
+
+int pm8921_batt_temperature(void)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ return get_prop_batt_temp(the_chip);
+}
+
+static int is_ac_online(void)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ return is_usb_chg_plugged_in(the_chip) &&
+ (pwr_src == HTC_PWR_SOURCE_TYPE_AC ||
+ pwr_src == HTC_PWR_SOURCE_TYPE_9VAC ||
+ pwr_src == HTC_PWR_SOURCE_TYPE_MHL_AC);
+}
+
+static void handle_usb_insertion_removal(struct pm8921_chg_chip *chip)
+{
+ int usb_present, rc = 0;
+ int vbat_programmed = chip->max_voltage_mv;
+
+ if (pm_chg_failed_clear(chip, 1))
+ pr_err("Failed to write CHG_FAILED_CLEAR bit\n");
+ usb_present = is_usb_chg_plugged_in(chip);
+ if (chip->usb_present ^ usb_present) {
+ pr_info("vbus present change: %d -> %d\n",
+ chip->usb_present, usb_present);
+ notify_usb_of_the_plugin_event(usb_present);
+ chip->usb_present = usb_present;
+
+ if (usb_present) {
+ htc_charger_event_notify(HTC_CHARGER_EVENT_VBUS_IN);
+ is_cable_remove = false;
+ schedule_delayed_work(&chip->unplug_check_work,
+ round_jiffies_relative(msecs_to_jiffies
+ (UNPLUG_CHECK_WAIT_PERIOD_MS)));
+ } else {
+
+ usb_target_ma = 0;
+ pm_chg_disable_auto_enable(chip, 0, BATT_CHG_DISABLED_BIT_EOC);
+ is_batt_full = false;
+ is_ac_safety_timeout = false;
+ htc_charger_event_notify(HTC_CHARGER_EVENT_VBUS_OUT);
+ is_cable_remove = true;
+
+ rc = pm_chg_vddmax_get(chip, &vbat_programmed);
+ if (rc)
+ pr_err("couldnt read vddmax rc = %d\n", rc);
+ pr_info("Set vbatdet=%d after cable out\n",
+ vbat_programmed);
+ rc = pm_chg_vbatdet_set(chip, vbat_programmed);
+ if (rc)
+ pr_err("Failed to set vbatdet=%d rc=%d\n",
+ chip->max_voltage_mv, rc);
+ }
+ }
+ bms_notify_check(chip);
+}
+
+static void handle_stop_ext_usb_chg(struct pm8921_chg_chip *chip)
+{
+ if (chip->ext_usb == NULL) {
+ pr_debug("ext_usb charger not registered.\n");
+ return;
+ }
+
+ if (!chip->ext_usb_charging) {
+ pr_debug("ext_usb charger already not charging.\n");
+ return;
+ }
+
+ if(chip->ext_usb)
+ {
+ if(chip->ext_usb->stop_charging)
+ {
+ chip->ext_usb->stop_charging(chip->ext_usb->ctx);
+ chip->ext_usb_charging = false;
+ chip->ext_usb_charge_done = false;
+ }
+ return;
+ }
+
+}
+
+static void handle_start_ext_usb_chg(struct pm8921_chg_chip *chip)
+{
+ int usb_present;
+ int batt_present;
+ int batt_temp_ok;
+ int vbat_ov;
+ unsigned long delay =
+ round_jiffies_relative(msecs_to_jiffies(EOC_CHECK_PERIOD_MS));
+
+ if (chip->ext_usb == NULL) {
+ pr_debug("ext_usb charger not registered.\n");
+ return;
+ }
+
+ if (chip->ext_usb_charging) {
+ pr_debug("ext_usb charger already charging.\n");
+ return;
+ }
+
+ if(chip->ext_usb)
+ {
+ if(chip->ext_usb->start_charging)
+ {
+ chip->ext_usb->start_charging(chip->ext_usb->ctx);
+ chip->ext_usb_charging = true;
+ chip->ext_usb_charge_done = false;
+
+
+ if (!flag_disable_wakelock)
+ wake_lock(&chip->eoc_wake_lock);
+ schedule_delayed_work(&chip->eoc_work, delay);
+ }
+ return;
+ }
+
+ usb_present = is_usb_chg_plugged_in(chip);
+ batt_present = pm_chg_get_rt_status(chip, BATT_INSERTED_IRQ);
+ batt_temp_ok = pm_chg_get_rt_status(chip, BAT_TEMP_OK_IRQ);
+ vbat_ov = pm_chg_get_rt_status(chip, VBAT_OV_IRQ);
+
+ if (!usb_present) {
+ pr_warn("%s. usb not present.\n", __func__);
+ return;
+ }
+
+ if (!batt_present) {
+ pr_warn("%s. battery not present.\n", __func__);
+ return;
+ }
+ if (!batt_temp_ok) {
+ pr_warn("%s. battery temperature not ok.\n", __func__);
+ return;
+ }
+ if (vbat_ov) {
+ pr_warn("%s. battery over voltage.\n", __func__);
+ return;
+ }
+
+ chip->ext_usb->start_charging(chip->ext_usb->ctx);
+ chip->ext_usb_charging = true;
+ chip->ext_usb_charge_done = false;
+
+ schedule_delayed_work(&chip->eoc_work, delay);
+ if (!flag_disable_wakelock)
+ wake_lock(&chip->eoc_wake_lock);
+}
+
+static void handle_stop_ext_chg(struct pm8921_chg_chip *chip)
+{
+ if (chip->ext == NULL) {
+ pr_debug("external charger not registered.\n");
+ return;
+ }
+
+ if (!chip->ext_charging) {
+ pr_debug("already not charging.\n");
+ return;
+ }
+
+ chip->ext->stop_charging(chip->ext->ctx);
+ chip->ext_charging = false;
+ chip->ext_charge_done = false;
+}
+
+static void handle_start_ext_chg(struct pm8921_chg_chip *chip)
+{
+ int dc_present;
+ int batt_present;
+ int batt_temp_ok;
+ int vbat_ov;
+ int batfet;
+ unsigned long delay =
+ round_jiffies_relative(msecs_to_jiffies(EOC_CHECK_PERIOD_MS));
+
+ if (chip->ext == NULL) {
+ pr_debug("external charger not registered.\n");
+ return;
+ }
+
+ if (chip->ext_charging) {
+ pr_debug("already charging.\n");
+ return;
+ }
+
+ dc_present = is_dc_chg_plugged_in(chip);
+ batt_present = pm_chg_get_rt_status(chip, BATT_INSERTED_IRQ);
+ batt_temp_ok = pm_chg_get_rt_status(chip, BAT_TEMP_OK_IRQ);
+ vbat_ov = pm_chg_get_rt_status(chip, VBAT_OV_IRQ);
+ batfet = pm_chg_get_rt_status(chip, BATFET_IRQ);
+
+ if (!dc_present) {
+ pr_warn("%s. dc not present.\n", __func__);
+ return;
+ }
+ if (!batt_present) {
+ pr_warn("%s. battery not present.\n", __func__);
+ return;
+ }
+ if (!batt_temp_ok) {
+ pr_warn("%s. battery temperature not ok.\n", __func__);
+ return;
+ }
+ if (vbat_ov) {
+ pr_warn("%s. battery over voltage.\n", __func__);
+ return;
+ }
+ if (!batfet) {
+ pr_warn("%s. battery FET not closed.\n", __func__);
+ return;
+ }
+
+ chip->ext->start_charging(chip->ext->ctx);
+ chip->ext_charging = true;
+ chip->ext_charge_done = false;
+
+ schedule_delayed_work(&chip->eoc_work, delay);
+ if (!flag_disable_wakelock)
+ wake_lock(&chip->eoc_wake_lock);
+}
+
+static void handle_dc_removal_insertion(struct pm8921_chg_chip *chip)
+{
+ int dc_present;
+
+ dc_present = is_dc_chg_plugged_in(chip);
+ if (chip->dc_present ^ dc_present) {
+ chip->dc_present = dc_present;
+
+ }
+ bms_notify_check(chip);
+}
+
+static int pm_chg_turn_off_ovp_fet(struct pm8921_chg_chip *chip, u16 ovptestreg)
+{
+ u8 temp;
+ int err = 0;
+ err = pm8xxx_writeb(chip->dev->parent, ovptestreg, 0x30);
+ if (err) {
+ pr_err("Error %d writing 0x%2x to addr 0x%2x\n",
+ err, 0x30, ovptestreg);
+ return err;
+ }
+ err = pm8xxx_readb(chip->dev->parent, ovptestreg, &temp);
+ if (err) {
+ pr_err("Error %d reading addr 0x%x\n", err, ovptestreg);
+ return err;
+ }
+
+ temp |= 0x81;
+ err = pm8xxx_writeb(chip->dev->parent, ovptestreg, temp);
+ if (err) {
+ pr_err("Error %d writing 0x%2x to addr 0x%2x\n",
+ err, temp, ovptestreg);
+ return err;
+ }
+ return 0;
+}
+
+static int pm_chg_turn_on_ovp_fet(struct pm8921_chg_chip *chip, u16 ovptestreg)
+{
+ u8 temp;
+ int err = 0;
+
+ err = pm8xxx_writeb(chip->dev->parent, ovptestreg, 0x30);
+ if (err) {
+ pr_err("Error %d writing 0x%2x to addr 0x%2x\n",
+ err, 0x30, ovptestreg);
+ return err;
+ }
+ err = pm8xxx_readb(chip->dev->parent, ovptestreg, &temp);
+ if (err) {
+ pr_err("Error %d reading addr 0x%x\n", err, ovptestreg);
+ return err;
+ }
+
+ temp &= 0xFE;
+ temp |= 0x80;
+ err = pm8xxx_writeb(chip->dev->parent, ovptestreg, temp);
+ if (err) {
+ pr_err("Error %d writing 0x%2x to addr 0x%2x\n",
+ err, temp, ovptestreg);
+ return err;
+ }
+
+ return 0;
+}
+
+static void turn_off_ovp_fet(struct pm8921_chg_chip *chip, u16 ovptestreg)
+{
+ int i, rc;
+ for (i = 0; i < 5; i++) {
+ rc = pm_chg_turn_off_ovp_fet(chip, ovptestreg);
+ if (!rc)
+ break;
+ }
+ if (i > 0)
+ pr_info("%s: retry = %d\n", __func__, i);
+ return;
+}
+
+static void turn_on_ovp_fet(struct pm8921_chg_chip *chip, u16 ovptestreg)
+{
+ int i, rc;
+ for (i = 0; i < 5; i++) {
+ rc = pm_chg_turn_on_ovp_fet(chip, ovptestreg);
+ if (!rc)
+ break;
+ }
+ if (i > 0)
+ pr_info("%s: retry = %d\n", __func__, i);
+ return;
+}
+
+static int param_open_ovp_counter = 10;
+module_param(param_open_ovp_counter, int, 0644);
+
+#define USB_ACTIVE_BIT BIT(5)
+#define DC_ACTIVE_BIT BIT(6)
+static int is_active_chg_plugged_in(struct pm8921_chg_chip *chip,
+ u8 active_chg_mask)
+{
+ if (active_chg_mask & USB_ACTIVE_BIT)
+ return pm_chg_get_rt_status(chip, USBIN_VALID_IRQ);
+ else if (active_chg_mask & DC_ACTIVE_BIT)
+ return pm_chg_get_rt_status(chip, DCIN_VALID_IRQ);
+ else
+ return 0;
+}
+
+#define WRITE_BANK_4 0xC0
+#define OVP_DEBOUNCE_TIME 0x06
+static void unplug_ovp_fet_open_worker(struct work_struct *work)
+{
+ struct pm8921_chg_chip *chip = container_of(work,
+ struct pm8921_chg_chip,
+ unplug_ovp_fet_open_work);
+ int chg_gone = 0, active_chg_plugged_in = 0, count = 0;
+ u8 active_mask = 0;
+ u16 ovpreg, ovptestreg;
+
+ wake_lock(&chip->unplug_ovp_fet_open_wake_lock);
+ pr_info("%s:Start\n", __func__);
+ if (is_usb_chg_plugged_in(chip) &&
+ (chip->active_path & USB_ACTIVE_BIT)) {
+ ovpreg = USB_OVP_CONTROL;
+ ovptestreg = USB_OVP_TEST;
+ active_mask = USB_ACTIVE_BIT;
+ } else if (is_dc_chg_plugged_in(chip) &&
+ (chip->active_path & DC_ACTIVE_BIT)) {
+ ovpreg = DC_OVP_CONTROL;
+ ovptestreg = DC_OVP_TEST;
+ active_mask = DC_ACTIVE_BIT;
+ } else {
+ goto finish_due_to_no_cable;
+ }
+
+ while (count++ < param_open_ovp_counter) {
+ pm_chg_masked_write(chip, ovpreg, OVP_DEBOUNCE_TIME, 0x0);
+ usleep(10);
+ active_chg_plugged_in = is_active_chg_plugged_in(chip, active_mask);
+ chg_gone = pm_chg_get_rt_status(chip, CHG_GONE_IRQ);
+ pr_debug("OVP FET count=%d chg_gone=%d, active_valid=%d\n",
+ count, chg_gone, active_chg_plugged_in);
+
+ if (chg_gone == 1 && active_chg_plugged_in == 1) {
+ pr_debug("since chg_gone = 1 disabling ovp_fet for 20 msecs\n");
+ turn_off_ovp_fet(chip, ovptestreg);
+
+ msleep(20);
+
+ turn_on_ovp_fet(chip, ovptestreg);
+ } else {
+
+ break;
+ }
+ }
+ pm_chg_masked_write(chip, ovpreg, OVP_DEBOUNCE_TIME, 0x2);
+finish_due_to_no_cable:
+ pr_info("%s:Exiting,count=%d,chg_gone=%d,active_valid=%d\n",
+ __func__, count, chg_gone, active_chg_plugged_in);
+ wake_unlock(&chip->unplug_ovp_fet_open_wake_lock);
+ return;
+}
+
+static int find_usb_ma_value(int value)
+{
+ int i;
+
+ for (i = ARRAY_SIZE(usb_ma_table) - 1; i >= 0; i--) {
+ if (value >= usb_ma_table[i].usb_ma)
+ break;
+ }
+
+ return i;
+}
+
+static void decrease_usb_ma_value(int *value)
+{
+ int i;
+
+ if (value) {
+ i = find_usb_ma_value(*value);
+ if (i > 0)
+ i--;
+ *value = usb_ma_table[i].usb_ma;
+ }
+}
+
+static void increase_usb_ma_value(int *value)
+{
+ int i;
+
+ if (value) {
+ i = find_usb_ma_value(*value);
+
+ if (i < (ARRAY_SIZE(usb_ma_table) - 1))
+ i++;
+ *value = usb_ma_table[i].usb_ma;
+ }
+}
+
+static void vin_collapse_check_worker(struct work_struct *work)
+{
+ struct delayed_work *dwork = to_delayed_work(work);
+ struct pm8921_chg_chip *chip = container_of(dwork,
+ struct pm8921_chg_chip, vin_collapse_check_work);
+
+
+ if (is_usb_chg_plugged_in(chip) &&
+ usb_target_ma > USB_WALL_THRESHOLD_MA) {
+
+ decrease_usb_ma_value(&usb_target_ma);
+
+ __pm8921_charger_vbus_draw(USB_WALL_THRESHOLD_MA);
+ pr_debug("usb_now=%d, usb_target = %d\n",
+ USB_WALL_THRESHOLD_MA, usb_target_ma);
+ } else {
+ cable_detection_vbus_irq_handler();
+ }
+}
+
+#define VIN_MIN_COLLAPSE_CHECK_MS 50
+static irqreturn_t usbin_valid_irq_handler(int irq, void *data)
+{
+ pr_info("%s: usb_target_ma=%d\n", __func__, usb_target_ma);
+ if (usb_target_ma) {
+ schedule_delayed_work(&the_chip->vin_collapse_check_work,
+ round_jiffies_relative(msecs_to_jiffies
+ (VIN_MIN_COLLAPSE_CHECK_MS)));
+ } else {
+
+ cable_detection_vbus_irq_handler();
+ }
+
+ if (0)
+ handle_usb_insertion_removal(data);
+ return IRQ_HANDLED;
+}
+
+static void update_ovp_uvp_state(int ov, int v, int uv)
+{
+ if ( ov && !v && !uv) {
+ if (!ovp) {
+ ovp = 1;
+ pr_info("OVP: 0 -> 1, USB_Valid: %d\n", v);
+ htc_charger_event_notify(HTC_CHARGER_EVENT_OVP);
+ }
+ } else if ( !ov && !v && uv) {
+ if (!uvp) {
+ uvp = 1;
+ pr_info("UVP: 0 -> 1, USB_Valid: %d\n", v);
+ }
+ } else {
+ if (ovp) {
+ ovp = 0;
+ pr_info("OVP: 1 -> 0, USB_Valid: %d\n", v);
+ htc_charger_event_notify(HTC_CHARGER_EVENT_OVP_RESOLVE);
+ }
+ if (uvp) {
+ uvp = 0;
+ pr_info("UVP: 1 -> 0, USB_Valid: %d\n", v);
+ }
+ }
+}
+
+static irqreturn_t usbin_ov_irq_handler(int irq, void *data)
+{
+ int ov, uv, v;
+ ov = pm_chg_get_rt_status(the_chip, USBIN_OV_IRQ);
+ v = pm_chg_get_rt_status(the_chip, USBIN_VALID_IRQ);
+ uv = pm_chg_get_rt_status(the_chip, USBIN_UV_IRQ);
+ pr_debug("%d -> %d [%d,%d,%d]\n",
+ usbin_ov_irq_state, ov, ov, v, uv);
+ usbin_ov_irq_state = ov;
+ update_ovp_uvp_state(ov, v, uv);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t batt_inserted_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+ int status;
+
+ status = pm_chg_get_rt_status(chip, BATT_INSERTED_IRQ);
+ schedule_work(&chip->battery_id_valid_work);
+ handle_start_ext_chg(chip);
+ handle_start_ext_usb_chg(chip);
+ pr_debug("battery present=%d", status);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t vbatdet_low_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+ int high_transition, rc = 0;
+
+
+ high_transition = pm_chg_get_rt_status(chip, VBATDET_LOW_IRQ);
+
+ if(chip->ext_usb)
+ {
+ if (high_transition)
+ {
+ queue_delayed_work(ext_charger_wq, &ext_charger_vbat_low_task, 0);
+ }
+
+ pr_info("%s, high_transition:%d\n", __func__, high_transition);
+ return IRQ_HANDLED;
+ }
+
+ if (high_transition) {
+ handle_start_ext_usb_chg(chip);
+
+ pr_info("%s: Set vbatdet=%d before recharge is started\n",
+ __func__, PM8921_CHG_VBATDET_MAX);
+ rc = pm_chg_vbatdet_set(chip, PM8921_CHG_VBATDET_MAX);
+ if (rc)
+ pr_err("Failed to set vbatdet=%d rc=%d\n",
+ PM8921_CHG_VBATDET_MAX, rc);
+
+ pm_chg_disable_auto_enable(chip, 0, BATT_CHG_DISABLED_BIT_EOC);
+ pr_info("batt fell below resume voltage %s\n",
+ batt_charging_disabled ? "" : "charger enabled (recharging)");
+ } else {
+ pr_info("vbatdet_low = %d, fsm_state=%d\n", high_transition,
+ pm_chg_get_fsm_state(data));
+ }
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t usbin_uv_irq_handler(int irq, void *data)
+{
+ int ov, uv, v;
+ ov = pm_chg_get_rt_status(the_chip, USBIN_OV_IRQ);
+ v = pm_chg_get_rt_status(the_chip, USBIN_VALID_IRQ);
+ uv = pm_chg_get_rt_status(the_chip, USBIN_UV_IRQ);
+ pr_debug("%d -> %d [%d,%d,%d]\n",
+ usbin_uv_irq_state, uv, ov, v, uv);
+ usbin_uv_irq_state = uv;
+ update_ovp_uvp_state(ov, v, uv);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t vbat_ov_irq_handler(int irq, void *data)
+{
+ pr_debug("fsm_state=%d\n", pm_chg_get_fsm_state(data));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t chgwdog_irq_handler(int irq, void *data)
+{
+ pr_debug("fsm_state=%d\n", pm_chg_get_fsm_state(data));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t vcp_irq_handler(int irq, void *data)
+{
+ pr_debug("state_changed_to=%d\n", pm_chg_get_fsm_state(data));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t atcdone_irq_handler(int irq, void *data)
+{
+ pr_debug("fsm_state=%d\n", pm_chg_get_fsm_state(data));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t atcfail_irq_handler(int irq, void *data)
+{
+ pr_debug("fsm_state=%d\n", pm_chg_get_fsm_state(data));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t chgdone_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+
+ pr_debug("state_changed_to=%d\n", pm_chg_get_fsm_state(data));
+
+
+ if(chip->ext_usb)
+ {
+ queue_delayed_work(ext_charger_wq, &ext_charger_chgdone_task, 0);
+ return IRQ_HANDLED;
+ }
+
+ handle_stop_ext_usb_chg(chip);
+ handle_stop_ext_chg(chip);
+
+
+ bms_notify_check(chip);
+ htc_gauge_event_notify(HTC_GAUGE_EVENT_EOC);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t chgfail_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+ int ret;
+
+ if (!is_ac_online() || flag_keep_charge_on || flag_pa_recharge) {
+ pr_info("%s: write CHG_FAILED_CLEAR bit\n", __func__);
+ ret = pm_chg_failed_clear(chip, 1);
+ if (ret)
+ pr_err("Failed to write CHG_FAILED_CLEAR bit\n");
+ } else {
+ if ((chip->safety_time > SAFETY_TIME_MAX_LIMIT) &&
+ !is_ac_safety_timeout_twice) {
+ is_ac_safety_timeout_twice = true;
+ pr_info("%s: write CHG_FAILED_CLEAR bit "
+ "due to safety time is twice\n", __func__);
+ ret = pm_chg_failed_clear(chip, 1);
+ if (ret)
+ pr_err("Failed to write CHG_FAILED_CLEAR bit\n");
+ } else {
+ is_ac_safety_timeout = true;
+ pr_err("%s: batt_present=%d, batt_temp_ok=%d, state_changed_to=%d\n",
+ __func__, get_prop_batt_present(chip),
+ pm_chg_get_rt_status(chip, BAT_TEMP_OK_IRQ),
+ pm_chg_get_fsm_state(data));
+ }
+ }
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t chgstate_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+
+ pr_debug("state_changed_to=%d\n", pm_chg_get_fsm_state(data));
+ bms_notify_check(chip);
+
+ return IRQ_HANDLED;
+}
+
+static int param_vin_disable_counter = 5;
+module_param(param_vin_disable_counter, int, 0644);
+
+static void attempt_reverse_boost_fix(struct pm8921_chg_chip *chip,
+ int count, int usb_ma)
+{
+ if (usb_ma)
+ __pm8921_charger_vbus_draw(500);
+ pr_debug(" count = %d iusb=500mA\n", count);
+ disable_input_voltage_regulation(chip);
+ pr_debug(" count = %d disable_input_regulation\n", count);
+
+ msleep(20);
+
+ pr_debug(" count = %d end sleep 20ms chg_gone=%d, usb_valid = %d\n",
+ count,
+ pm_chg_get_rt_status(chip, CHG_GONE_IRQ),
+ is_usb_chg_plugged_in(chip));
+ pr_debug(" count = %d restoring input regulation and usb_ma = %d\n",
+ count, usb_ma);
+ enable_input_voltage_regulation(chip);
+ if (usb_ma)
+ __pm8921_charger_vbus_draw(usb_ma);
+}
+
+#define VIN_ACTIVE_BIT BIT(0)
+#define UNPLUG_WRKARND_RESTORE_WAIT_PERIOD_US 200
+#define VIN_MIN_INCREASE_MV 100
+#define CONSECUTIVE_TRIAL_COUNT_MAX (20)
+static void unplug_check_worker(struct work_struct *work)
+{
+ struct delayed_work *dwork = to_delayed_work(work);
+ struct pm8921_chg_chip *chip = container_of(dwork,
+ struct pm8921_chg_chip, unplug_check_work);
+ u8 reg_loop, active_path;
+ int rc, ibat, active_chg_plugged_in, usb_ma;
+ int chg_gone = 0;
+ static int rb_trial_count = 0;
+ static int ovp_trial_count = 0;
+
+ reg_loop = 0;
+ rc = pm8xxx_readb(chip->dev->parent, PBL_ACCESS1, &active_path);
+ if (rc) {
+ pr_err("Failed to read PBL_ACCESS1 rc=%d\n", rc);
+ return;
+ }
+ chip->active_path = active_path;
+
+ active_chg_plugged_in = is_active_chg_plugged_in(chip, active_path);
+ pr_debug("active_path = 0x%x, active_chg_plugged_in = %d\n",
+ active_path, active_chg_plugged_in);
+ if (active_path & USB_ACTIVE_BIT) {
+ pr_debug("USB charger active\n");
+
+ pm_chg_iusbmax_get(chip, &usb_ma);
+ #if 0
+ if (usb_ma == 500 && !usb_target_ma) {
+ pr_info("Stopping Unplug Check Worker USB == 500mA\n");
+ rb_trial_count = ovp_trial_count = 0;
+ disable_input_voltage_regulation(chip);
+ return;
+ }
+ #endif
+
+ if (usb_ma <= 100) {
+ pr_info(
+ "Unenumerated or suspended usb_ma = %d skip\n",
+ usb_ma);
+ goto check_again_later;
+ }
+ } else if (active_path & DC_ACTIVE_BIT) {
+ pr_debug("DC charger active\n");
+ if (!chip->dc_unplug_check)
+ return;
+ } else {
+
+ if (!(is_usb_chg_plugged_in(chip))
+ && !(is_dc_chg_plugged_in(chip))) {
+ pr_info("Stopping Unplug Check - chargers are removed"
+ "reg_loop = %d, fsm = %d ibat = %d "
+ "(rb_trial_count=%d ovp_trial_count=%d)\n",
+ pm_chg_get_regulation_loop(chip),
+ pm_chg_get_fsm_state(chip),
+ get_prop_batt_current(chip),
+ rb_trial_count,
+ ovp_trial_count
+ );
+ rb_trial_count = ovp_trial_count = 0;
+ }
+ return;
+ }
+
+ if (active_path & USB_ACTIVE_BIT) {
+ reg_loop = pm_chg_get_regulation_loop(chip);
+ pr_debug("reg_loop=0x%x usb_ma = %d\n", reg_loop, usb_ma);
+ if ((reg_loop & VIN_ACTIVE_BIT) &&
+ (usb_ma > USB_WALL_THRESHOLD_MA)) {
+ decrease_usb_ma_value(&usb_ma);
+ usb_target_ma = usb_ma;
+
+ __pm8921_charger_vbus_draw(usb_ma);
+ pr_debug("usb_now=%d, usb_target = %d\n",
+ usb_ma, usb_target_ma);
+ }
+ }
+
+ reg_loop = pm_chg_get_regulation_loop(chip);
+#if 0
+ pr_debug("reg_loop=0x%x usb_ma = %d\n", reg_loop, usb_ma);
+#endif
+
+ ibat = get_prop_batt_current(chip);
+ if (reg_loop & VIN_ACTIVE_BIT) {
+
+ pr_debug("ibat = %d fsm = %d reg_loop = 0x%x\n",
+ ibat, pm_chg_get_fsm_state(chip), reg_loop);
+ if (ibat > 0) {
+ int count = 0;
+ while (count++ < param_vin_disable_counter
+ && active_chg_plugged_in == 1) {
+ if (active_path & USB_ACTIVE_BIT)
+ attempt_reverse_boost_fix(chip,
+ count, usb_ma);
+ else
+ attempt_reverse_boost_fix(chip,
+ count, 0);
+ active_chg_plugged_in
+ = is_active_chg_plugged_in(chip,
+ active_path);
+ pr_debug("active_chg_plugged_in = %d\n",
+ active_chg_plugged_in);
+ if(!active_chg_plugged_in)
+ pr_info("%s: cable out by vin disable, count:%d\n",
+ __func__, count);
+ }
+ rb_trial_count++;
+ if (rb_trial_count > CONSECUTIVE_TRIAL_COUNT_MAX) {
+ pr_info("too much rb_trial_count=%d\n", rb_trial_count);
+ rb_trial_count = 0;
+ }
+ }
+ }
+
+ active_chg_plugged_in = is_active_chg_plugged_in(chip, active_path);
+ pr_debug("active_path = 0x%x, active_chg = %d\n",
+ active_path, active_chg_plugged_in);
+ chg_gone = pm_chg_get_rt_status(chip, CHG_GONE_IRQ);
+
+ if (chg_gone == 1 && active_chg_plugged_in == 1) {
+ pr_debug("chg_gone=%d, active_chg_plugged_in = %d\n",
+ chg_gone, active_chg_plugged_in);
+ ovp_trial_count++;
+ if (ovp_trial_count > CONSECUTIVE_TRIAL_COUNT_MAX) {
+ pr_info("too much ovp_trial_count=%d\n", ovp_trial_count);
+ ovp_trial_count = 0;
+ }
+ schedule_work(&chip->unplug_ovp_fet_open_work);
+ }
+
+ if (!(reg_loop & VIN_ACTIVE_BIT) && (active_path & USB_ACTIVE_BIT) &&
+ (usb_target_ma > USB_WALL_THRESHOLD_MA)) {
+
+ if (usb_ma < usb_target_ma) {
+ increase_usb_ma_value(&usb_ma);
+ __pm8921_charger_vbus_draw(usb_ma);
+ pr_debug("usb_now=%d, usb_target = %d\n",
+ usb_ma, usb_target_ma);
+ } else {
+ usb_target_ma = usb_ma;
+ }
+ }
+
+check_again_later:
+
+ schedule_delayed_work(&chip->unplug_check_work,
+ round_jiffies_relative(msecs_to_jiffies
+ (UNPLUG_CHECK_WAIT_PERIOD_MS)));
+}
+
+static irqreturn_t loop_change_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+
+ pr_info("fsm_state=%d reg_loop=0x%x\n",
+ pm_chg_get_fsm_state(data),
+ pm_chg_get_regulation_loop(data));
+
+ schedule_delayed_work(&chip->unplug_check_work,
+ round_jiffies_relative(msecs_to_jiffies(0)));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t fastchg_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+ int high_transition;
+
+ high_transition = pm_chg_get_rt_status(chip, FASTCHG_IRQ);
+ if (high_transition && !delayed_work_pending(&chip->eoc_work)) {
+ if (!flag_disable_wakelock)
+ wake_lock(&chip->eoc_wake_lock);
+ schedule_delayed_work(&chip->eoc_work,
+ round_jiffies_relative(msecs_to_jiffies
+ (EOC_CHECK_PERIOD_MS)));
+ }
+ bms_notify_check(chip);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t trklchg_irq_handler(int irq, void *data)
+{
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t batt_removed_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+ int status;
+
+ status = pm_chg_get_rt_status(chip, BATT_REMOVED_IRQ);
+ if (chip->is_embeded_batt) {
+ pr_info("%s: Skip it due to embeded battery, present=%d\n",
+ __func__, !status);
+ return IRQ_HANDLED;
+ }
+ if (chip->mbat_in_gpio
+ && (gpio_get_value(chip->mbat_in_gpio) == 0)) {
+ pr_info("%s: Battery is still existed, present=%d\n",
+ __func__, !status);
+ return IRQ_HANDLED;
+ }
+ pr_info("%s: battery present=%d FSM=%d", __func__, !status,
+ pm_chg_get_fsm_state(data));
+ handle_stop_ext_usb_chg(chip);
+ handle_stop_ext_chg(chip);
+
+ if (status)
+ htc_gauge_event_notify(HTC_GAUGE_EVENT_BATT_REMOVED);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t batttemp_hot_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+ pr_info("Battery hot\n");
+
+ pr_debug("Batt hot fsm_state=%d\n", pm_chg_get_fsm_state(data));
+
+ handle_stop_ext_chg(chip);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t chghot_irq_handler(int irq, void *data)
+{
+ pr_debug("Chg hot fsm_state=%d\n", pm_chg_get_fsm_state(data));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t batttemp_cold_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+ pr_info("Battery cold\n");
+
+ pr_debug("Batt cold fsm_state=%d\n", pm_chg_get_fsm_state(data));
+
+ handle_stop_ext_chg(chip);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t chg_gone_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+ u8 reg;
+ int rc, chg_gone, usb_chg_plugged_in, dc_chg_plugged_in;
+
+ usb_chg_plugged_in = is_usb_chg_plugged_in(chip);
+ dc_chg_plugged_in = is_dc_chg_plugged_in(chip);
+ chg_gone = pm_chg_get_rt_status(chip, CHG_GONE_IRQ);
+
+ pr_info("chg_gone=%d, usb_valid=%d, dc_valid=%d, fsm=%d\n",
+ chg_gone, usb_chg_plugged_in, dc_chg_plugged_in,
+ pm_chg_get_fsm_state(data));
+ rc = pm8xxx_readb(chip->dev->parent, CHG_CNTRL_3, ®);
+ if (rc)
+ pr_err("Failed to read CHG_CNTRL_3 rc=%d\n", rc);
+
+ if (reg & CHG_USB_SUSPEND_BIT)
+ return IRQ_HANDLED;
+ schedule_work(&chip->unplug_ovp_fet_open_work);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t bat_temp_ok_irq_handler(int irq, void *data)
+{
+ int bat_temp_ok;
+ struct pm8921_chg_chip *chip = data;
+
+
+ if(the_chip->ext_usb)
+ {
+ pr_info("%s\n", __func__);
+ queue_delayed_work(ext_charger_wq, &ext_charger_temp_task, HZ/200);
+ return IRQ_HANDLED;
+ }
+
+ bat_temp_ok = pm_chg_get_rt_status(chip, BAT_TEMP_OK_IRQ);
+ if (bat_temp_ok_prev == bat_temp_ok) {
+ pr_info("batt_temp_ok=%d same as previous one so skip it this time\n",
+ bat_temp_ok);
+ return IRQ_HANDLED;
+ } else {
+ pr_info("batt_temp_ok=%d, bat_temp_ok_prev=%d, FSM=%d\n",
+ bat_temp_ok, bat_temp_ok_prev, pm_chg_get_fsm_state(data));
+ bat_temp_ok_prev = bat_temp_ok;
+ }
+
+ if (bat_temp_ok) {
+ handle_start_ext_chg(chip);
+ } else {
+ handle_stop_ext_chg(chip);
+ }
+
+ bms_notify_check(chip);
+
+ htc_gauge_event_notify(HTC_GAUGE_EVENT_TEMP_ZONE_CHANGE);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t coarse_det_low_irq_handler(int irq, void *data)
+{
+ pr_debug("fsm_state=%d\n", pm_chg_get_fsm_state(data));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t vdd_loop_irq_handler(int irq, void *data)
+{
+ pr_debug("fsm_state=%d\n", pm_chg_get_fsm_state(data));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t vreg_ov_irq_handler(int irq, void *data)
+{
+ pr_debug("fsm_state=%d\n", pm_chg_get_fsm_state(data));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t vbatdet_irq_handler(int irq, void *data)
+{
+ pr_debug("fsm_state=%d\n", pm_chg_get_fsm_state(data));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t batfet_irq_handler(int irq, void *data)
+{
+ pr_debug("vreg ov\n");
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t dcin_valid_irq_handler(int irq, void *data)
+{
+#if 1
+ pr_info("%s\n", __func__);
+ cable_detection_vbus_irq_handler();
+#else
+ struct pm8921_chg_chip *chip = data;
+
+ pm8921_disable_source_current(true);
+
+ handle_dc_removal_insertion(chip);
+ handle_start_ext_chg(chip);
+#endif
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t dcin_ov_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+
+ pm8921_disable_source_current(false);
+
+ handle_dc_removal_insertion(chip);
+ handle_stop_ext_chg(chip);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t dcin_uv_irq_handler(int irq, void *data)
+{
+ struct pm8921_chg_chip *chip = data;
+
+ pm8921_disable_source_current(false);
+ handle_stop_ext_chg(chip);
+
+ return IRQ_HANDLED;
+}
+
+static void dump_irq_rt_status(void)
+{
+ pr_info("[irq1] %d%d%d%d %d%d%d%d %d%d%d%d %d%d%d\n",
+
+ pm_chg_get_rt_status(the_chip, USBIN_VALID_IRQ),
+ pm_chg_get_rt_status(the_chip, USBIN_OV_IRQ),
+ pm_chg_get_rt_status(the_chip, USBIN_UV_IRQ),
+ pm_chg_get_rt_status(the_chip, VBAT_OV_IRQ),
+
+ pm_chg_get_rt_status(the_chip, BATT_INSERTED_IRQ),
+ pm_chg_get_rt_status(the_chip, BATT_REMOVED_IRQ),
+ pm_chg_get_rt_status(the_chip, VBATDET_LOW_IRQ),
+ pm_chg_get_rt_status(the_chip, VBATDET_IRQ),
+
+ pm_chg_get_rt_status(the_chip, ATCDONE_IRQ),
+ pm_chg_get_rt_status(the_chip, ATCFAIL_IRQ),
+ pm_chg_get_rt_status(the_chip, CHGDONE_IRQ),
+ pm_chg_get_rt_status(the_chip, CHGFAIL_IRQ),
+
+ pm_chg_get_rt_status(the_chip, FASTCHG_IRQ),
+ pm_chg_get_rt_status(the_chip, TRKLCHG_IRQ),
+ pm_chg_get_rt_status(the_chip, VCP_IRQ));
+ pr_info("[irq2] %d%d%d%d %d%d%d%d %d%d%d%d %d%d%d\n",
+
+ pm_chg_get_rt_status(the_chip, BATTTEMP_HOT_IRQ),
+ pm_chg_get_rt_status(the_chip, BATTTEMP_COLD_IRQ),
+ pm_chg_get_rt_status(the_chip, BAT_TEMP_OK_IRQ),
+ pm_chg_get_rt_status(the_chip, BATFET_IRQ),
+
+ pm_chg_get_rt_status(the_chip, CHGHOT_IRQ),
+ pm_chg_get_rt_status(the_chip, CHG_GONE_IRQ),
+ pm_chg_get_rt_status(the_chip, CHGSTATE_IRQ),
+ pm_chg_get_rt_status(the_chip, CHGWDOG_IRQ),
+
+ pm_chg_get_rt_status(the_chip, VDD_LOOP_IRQ),
+ pm_chg_get_rt_status(the_chip, VREG_OV_IRQ),
+ pm_chg_get_rt_status(the_chip, COARSE_DET_LOW_IRQ),
+ pm_chg_get_rt_status(the_chip, LOOP_CHANGE_IRQ),
+
+
+ pm_chg_get_rt_status(the_chip, DCIN_VALID_IRQ),
+ pm_chg_get_rt_status(the_chip, DCIN_OV_IRQ),
+ pm_chg_get_rt_status(the_chip, DCIN_UV_IRQ));
+}
+
+static void dump_reg(void)
+{
+ u64 val;
+
+ get_reg((void *)CHG_CNTRL, &val);
+ pr_info("CHG_CNTRL = 0x%llx\n", val);
+ get_reg((void *)CHG_CNTRL_2, &val);
+ pr_info("CHG_CNTRL_2 = 0x%llx\n", val);
+ get_reg((void *)CHG_CNTRL_3, &val);
+ pr_info("CHG_CNTRL_3 = 0x%llx\n", val);
+ get_reg((void *)PBL_ACCESS1, &val);
+ pr_info("PBL_ACCESS1 = 0x%llx\n", val);
+ get_reg((void *)PBL_ACCESS2, &val);
+ pr_info("PBL_ACCESS2 = 0x%llx\n", val);
+ get_reg((void *)SYS_CONFIG_1, &val);
+ pr_info("SYS_CONFIG_1 = 0x%llx\n", val);
+ get_reg((void *)SYS_CONFIG_2, &val);
+ pr_info("SYS_CONFIG_2 = 0x%llx\n", val);
+ get_reg((void *)CHG_IBAT_SAFE, &val);
+ pr_info("CHG_IBAT_SAFE = 0x%llx\n", val);
+ get_reg((void *)CHG_IBAT_MAX, &val);
+ pr_info("CHG_IBAT_MAX = 0x%llx\n", val);
+ get_reg((void *)CHG_VBAT_DET, &val);
+ pr_info("CHG_VBAT_DET = 0x%llx\n", val);
+ get_reg((void *)CHG_VDD_SAFE, &val);
+ pr_info("CHG_VDD_SAFE = 0x%llx\n", val);
+ get_reg((void *)CHG_VDD_MAX, &val);
+ pr_info("CHG_VDD_MAX = 0x%llx\n", val);
+ get_reg((void *)CHG_VIN_MIN, &val);
+ pr_info("CHG_VIN_MIN = 0x%llx\n", val);
+ get_reg((void *)CHG_VTRICKLE, &val);
+ pr_info("CHG_VTRICKLE = 0x%llx\n", val);
+ get_reg((void *)CHG_ITRICKLE, &val);
+ pr_info("CHG_ITRICKLE = 0x%llx\n", val);
+ get_reg((void *)CHG_ITERM, &val);
+ pr_info("CHG_ITERM = 0x%llx\n", val);
+ get_reg((void *)CHG_TCHG_MAX, &val);
+ pr_info("CHG_TCHG_MAX = 0x%llx\n", val);
+ get_reg((void *)CHG_TWDOG, &val);
+ pr_info("CHG_TWDOG = 0x%llx\n", val);
+ get_reg((void *)CHG_TEMP_THRESH, &val);
+ pr_info("CHG_TEMP_THRESH = 0x%llx\n", val);
+ get_reg((void *)CHG_COMP_OVR, &val);
+ pr_info("CHG_COMP_OVR = 0x%llx\n", val);
+ get_reg((void *)CHG_BUCK_CTRL_TEST1, &val);
+ pr_info("CHG_BUCK_CTRL_TEST1 = 0x%llx\n", val);
+ get_reg((void *)CHG_BUCK_CTRL_TEST2, &val);
+ pr_info("CHG_BUCK_CTRL_TEST2 = 0x%llx\n", val);
+ get_reg((void *)CHG_BUCK_CTRL_TEST3, &val);
+ pr_info("CHG_BUCK_CTRL_TEST3 = 0x%llx\n", val);
+ get_reg((void *)CHG_TEST, &val);
+ pr_info("CHG_TEST = 0x%llx\n", val);
+ get_reg((void *)USB_OVP_CONTROL, &val);
+ pr_info("USB_OVP_CONTROL = 0x%llx\n", val);
+ get_reg((void *)USB_OVP_TEST, &val);
+ pr_info("USB_OVP_TEST = 0x%llx\n", val);
+ get_reg((void *)DC_OVP_CONTROL, &val);
+ pr_info("DC_OVP_CONTROL = 0x%llx\n", val);
+ get_reg((void *)DC_OVP_TEST, &val);
+ pr_info("DC_OVP_TEST = 0x%llx\n", val);
+
+ get_reg_loop((void *)NULL, &val);
+ pr_info("REGULATION_LOOP_CONTROL = 0x%llx\n", val);
+}
+
+static void dump_all(int more)
+{
+ int rc;
+ struct pm8xxx_adc_chan_result result;
+ int vbat_mv, ibat_ma, tbat_deg, soc, id_mv, iusb_ma;
+ int fcc, health, present, charger_type, status;
+ int fsm, ac_online, usb_online, dc_online;
+ int ichg = 0, vph_pwr = 0, usbin = 0;
+ int temp_fault = 0, vbatdet_low = 0;
+ vbat_mv = get_prop_battery_uvolts(the_chip)/1000;
+ soc = get_prop_batt_capacity(the_chip);
+ ibat_ma = get_prop_batt_current(the_chip)/1000;
+ fcc = get_prop_batt_fcc(the_chip);
+ id_mv = (int)read_battery_id(the_chip)/1000;
+ health = get_prop_batt_health(the_chip);
+ present = get_prop_batt_present(the_chip);
+ charger_type = get_prop_charge_type(the_chip);
+ status = get_prop_batt_status(the_chip);
+ tbat_deg = get_prop_batt_temp(the_chip)/10;
+ if (tbat_deg >= 68)
+ pr_warn("battery temperature=%d >= 68\n", tbat_deg);
+
+ fsm = pm_chg_get_fsm_state(the_chip);
+ ac_online = is_ac_online();
+ usb_online = is_usb_chg_plugged_in(the_chip);
+ dc_online = is_dc_chg_plugged_in(the_chip);
+ pm8921_is_batt_temperature_fault(&temp_fault);
+ pm_chg_iusbmax_get(the_chip, &iusb_ma);
+
+ rc = pm8xxx_adc_read(CHANNEL_ICHG, &result);
+ if (rc) {
+ pr_err("error reading i_chg channel = %d, rc = %d\n",
+ CHANNEL_ICHG, rc);
+ }
+ ichg = (int)result.physical;
+
+ rc = pm8xxx_adc_read(CHANNEL_VPH_PWR, &result);
+ if (rc) {
+ pr_err("error reading vph_pwr channel = %d, rc = %d\n",
+ CHANNEL_VPH_PWR, rc);
+ }
+ vph_pwr = (int)result.physical;
+
+ rc = pm8xxx_adc_read(CHANNEL_USBIN, &result);
+ if (rc) {
+ pr_err("error reading i_chg channel = %d, rc = %d\n",
+ CHANNEL_USBIN, rc);
+ }
+ usbin = (int)result.physical;
+ vbatdet_low = pm_chg_get_rt_status(the_chip, VBATDET_LOW_IRQ);
+
+ pr_info("V=%d mV, I=%d mA, T=%d C, SoC=%d%%, FCC=%d, id=%d mV,"
+ " H=%d, P=%d, CHG=%d, S=%d, FSM=%d, AC=%d, USB=%d, DC=%d,"
+ " iusb_ma=%d, usb_target_ma=%d, OVP=%d, UVP=%d, TM=%d, eoc_count=%d,"
+ " vbatdet_low=%d, is_ac_ST=%d, batfet_dis=0x%x, pwrsrc_dis=0x%x,"
+ " is_full=%d, temp_fault=%d, is_bat_warm/cool=%d/%d,"
+ " btm_warm/cool=%d/%d, ichg=%d uA, vph_pwr=%d uV, usbin=%d uV,"
+ " flag=%d%d%d%d\n",
+ vbat_mv, ibat_ma, tbat_deg, soc, fcc, id_mv,
+ health, present, charger_type, status, fsm,
+ ac_online, usb_online, dc_online,
+ iusb_ma, usb_target_ma, ovp, uvp, thermal_mitigation, eoc_count,
+ vbatdet_low, is_ac_safety_timeout, batt_charging_disabled,
+ pwrsrc_disabled, is_batt_full,
+ temp_fault, the_chip->is_bat_warm, the_chip->is_bat_cool,
+ pm8xxx_adc_btm_is_warm(), pm8xxx_adc_btm_is_cool(),
+ ichg, vph_pwr, usbin, test_power_monitor, flag_keep_charge_on,
+ flag_pa_recharge, flag_disable_wakelock);
+
+ if (more || (fsm == FSM_STATE_OFF_0) || (ibat_ma < -1000) ||
+ (tbat_deg == 80) || (4000 < usbin && (!usb_online)) ||
+ (2000 < ibat_ma) || is_cable_remove ||
+ (0 < ibat_ma && fsm == FSM_STATE_FAST_CHG_7) ||
+ (!is_batt_full && usb_online && fsm != FSM_STATE_FAST_CHG_7)) {
+ dump_irq_rt_status();
+ dump_reg();
+ pm8921_bms_dump_all();
+ is_cable_remove = false;
+ }
+}
+
+inline int pm8921_dump_all(void)
+{
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+ dump_all(0);
+
+ if(the_chip->ext_usb)
+ {
+ if(the_chip->ext_usb->ichg->dump_all)
+ the_chip->ext_usb->ichg->dump_all();
+ }
+
+ return 0;
+}
+
+static void update_heartbeat(struct work_struct *work)
+{
+ struct delayed_work *dwork = to_delayed_work(work);
+ struct pm8921_chg_chip *chip = container_of(dwork,
+ struct pm8921_chg_chip, update_heartbeat_work);
+
+ pm_chg_failed_clear(chip, 1);
+
+ schedule_delayed_work(&chip->update_heartbeat_work,
+ round_jiffies_relative(msecs_to_jiffies
+ (chip->update_time)));
+ dump_all(0);
+}
+
+static void recharge_check_worker(struct work_struct *work)
+{
+ struct delayed_work *dwork = to_delayed_work(work);
+ struct pm8921_chg_chip *chip = container_of(dwork,
+ struct pm8921_chg_chip, recharge_check_work);
+ int fast_chg;
+
+ fast_chg = pm_chg_get_rt_status(chip, FASTCHG_IRQ);
+ if (!fast_chg) {
+ pr_info("check vbatdet_low_irq rt status\n");
+ vbatdet_low_irq_handler(chip->pmic_chg_irq[VBATDET_LOW_IRQ], chip);
+ }
+ wake_unlock(&chip->recharge_check_wake_lock);
+}
+
+enum {
+ CHG_IN_PROGRESS,
+ CHG_NOT_IN_PROGRESS,
+ CHG_FINISHED,
+};
+#define VBAT_TOLERANCE_MV 70
+#define CHG_DISABLE_MSLEEP 100
+static int is_charging_finished(struct pm8921_chg_chip *chip)
+{
+ int vbat_meas_uv, vbat_meas_mv, vbat_programmed, vbatdet_low;
+ int ichg_meas_ma, iterm_programmed;
+ int regulation_loop, fast_chg, vcp;
+ int rc;
+ int ext_in_charging;
+
+ static int last_vbat_programmed = -EINVAL;
+
+ if (!is_using_ext_charger(chip)) {
+
+ fast_chg = pm_chg_get_rt_status(chip, FASTCHG_IRQ);
+ pr_debug("fast_chg = %d\n", fast_chg);
+ if (fast_chg == 0)
+ return CHG_NOT_IN_PROGRESS;
+
+ vcp = pm_chg_get_rt_status(chip, VCP_IRQ);
+ pr_debug("vcp = %d\n", vcp);
+ if (vcp == 1)
+ return CHG_IN_PROGRESS;
+
+ vbatdet_low = pm_chg_get_rt_status(chip, VBATDET_LOW_IRQ);
+ pr_debug("vbatdet_low = %d (htc skip this check)\n", vbatdet_low);
+
+
+ rc = pm_chg_get_rt_status(chip, BAT_TEMP_OK_IRQ);
+ pr_debug("batt_temp_ok = %d\n", rc);
+ if (rc == 0)
+ return CHG_IN_PROGRESS;
+
+
+ vbat_meas_uv = get_prop_battery_uvolts(chip);
+ if (vbat_meas_uv < 0)
+ return CHG_IN_PROGRESS;
+ vbat_meas_mv = vbat_meas_uv / 1000;
+
+ rc = pm_chg_vddmax_get(chip, &vbat_programmed);
+ if (rc) {
+ pr_err("couldnt read vddmax rc = %d\n", rc);
+ return CHG_IN_PROGRESS;
+ }
+ pr_debug("vddmax = %d vbat_meas_mv=%d\n",
+ vbat_programmed, vbat_meas_mv);
+ if (vbat_meas_mv < vbat_programmed - VBAT_TOLERANCE_MV)
+ return CHG_IN_PROGRESS;
+
+ if (last_vbat_programmed == -EINVAL)
+ last_vbat_programmed = vbat_programmed;
+ if (last_vbat_programmed != vbat_programmed) {
+
+ pr_debug("vddmax = %d last_vdd_max=%d\n",
+ vbat_programmed, last_vbat_programmed);
+ last_vbat_programmed = vbat_programmed;
+ return CHG_IN_PROGRESS;
+ }
+
+ regulation_loop = pm_chg_get_regulation_loop(chip);
+ if (regulation_loop < 0) {
+ pr_err("couldnt read the regulation loop err=%d\n",
+ regulation_loop);
+ return CHG_IN_PROGRESS;
+ }
+ pr_debug("regulation_loop=%d\n", regulation_loop);
+
+ if (regulation_loop != 0 && regulation_loop != VDD_LOOP)
+ return CHG_IN_PROGRESS;
+ }
+ else if(chip->ext_usb)
+ {
+
+ if(chip->ext_usb->ichg->get_charging_enabled)
+ chip->ext_usb->ichg->get_charging_enabled(&ext_in_charging);
+
+ if(!ext_in_charging)
+ return CHG_NOT_IN_PROGRESS;
+
+
+
+ rc = pm_chg_get_rt_status(chip, BAT_TEMP_OK_IRQ);
+ pr_debug("batt_temp_ok = %d\n", rc);
+ if (rc == 0)
+ return CHG_IN_PROGRESS;
+
+
+ vbat_meas_uv = get_prop_battery_uvolts(chip);
+ if (vbat_meas_uv < 0)
+ return CHG_IN_PROGRESS;
+ vbat_meas_mv = vbat_meas_uv / 1000;
+
+ rc = pm_chg_vddmax_get(chip, &vbat_programmed);
+ if (rc) {
+ pr_err("couldnt read vddmax rc = %d\n", rc);
+ return CHG_IN_PROGRESS;
+ }
+
+ pr_debug("vddmax = %d vbat_meas_mv=%d\n",
+ vbat_programmed, vbat_meas_mv);
+ if (vbat_meas_mv < vbat_programmed - VBAT_TOLERANCE_MV)
+ return CHG_IN_PROGRESS;
+
+ if (last_vbat_programmed == -EINVAL)
+ last_vbat_programmed = vbat_programmed;
+ if (last_vbat_programmed != vbat_programmed) {
+
+ pr_debug("vddmax = %d last_vdd_max=%d\n",
+ vbat_programmed, last_vbat_programmed);
+ last_vbat_programmed = vbat_programmed;
+ return CHG_IN_PROGRESS;
+ }
+
+
+ rc = pm_chg_iterm_get(chip, &iterm_programmed);
+
+ if (rc) {
+ pr_err("couldnt read iterm rc = %d\n", rc);
+ return CHG_IN_PROGRESS;
+ }
+
+ ichg_meas_ma = (get_prop_batt_current(chip)) / 1000;
+ pr_debug("iterm_programmed = %d ichg_meas_ma=%d\n",
+ iterm_programmed, ichg_meas_ma);
+ if (ichg_meas_ma > 0)
+ return CHG_IN_PROGRESS;
+
+ if (ichg_meas_ma * -1 > iterm_programmed)
+ return CHG_IN_PROGRESS;
+
+ return CHG_FINISHED;
+
+ }
+ else
+ {
+
+ }
+
+
+
+ rc = pm_chg_iterm_get(chip, &iterm_programmed);
+ if (rc) {
+ pr_err("couldnt read iterm rc = %d\n", rc);
+ return CHG_IN_PROGRESS;
+ }
+
+ ichg_meas_ma = (get_prop_batt_current(chip)) / 1000;
+ pr_debug("iterm_programmed = %d ichg_meas_ma=%d\n",
+ iterm_programmed, ichg_meas_ma);
+ if (ichg_meas_ma > 0)
+ return CHG_IN_PROGRESS;
+
+ if (ichg_meas_ma * -1 > iterm_programmed)
+ return CHG_IN_PROGRESS;
+
+ return CHG_FINISHED;
+}
+
+int pm_chg_program_vbatdet(struct pm8921_chg_chip *chip)
+{
+ int rc;
+ int vbat_programmed;
+
+ rc = pm_chg_vddmax_get(chip, &vbat_programmed);
+ if (rc) {
+ pr_err("couldnt read vddmax rc = %d\n", rc);
+ if (chip->is_bat_warm)
+ vbat_programmed = chip->warm_bat_voltage;
+ else if (chip->is_bat_cool)
+ vbat_programmed = chip->cool_bat_voltage;
+ else
+ vbat_programmed = chip->max_voltage_mv;
+ }
+ pr_info("program vbatdet=%d under %s condition\n",
+ vbat_programmed - chip->resume_voltage_delta,
+ (chip->is_bat_warm|chip->is_bat_cool) ? "warm/cool" : "normal");
+ rc = pm_chg_vbatdet_set(chip,
+ vbat_programmed - chip->resume_voltage_delta);
+ if (rc)
+ pr_err("Failed to set vbatdet=%d rc=%d\n",
+ vbat_programmed - chip->resume_voltage_delta, rc);
+
+ return rc;
+}
+
+#define CONSECUTIVE_COUNT 3
+#define EOC_STOP_CHG_COUNT (CONSECUTIVE_COUNT + 180)
+#define CLEAR_FULL_STATE_BY_LEVEL_THR 90
+static void eoc_worker(struct work_struct *work)
+{
+ struct delayed_work *dwork = to_delayed_work(work);
+ struct pm8921_chg_chip *chip = container_of(dwork,
+ struct pm8921_chg_chip, eoc_work);
+ int end, soc = 0;
+
+ if (!is_ac_safety_timeout)
+ pm_chg_failed_clear(chip, 1);
+ end = is_charging_finished(chip);
+
+ if (end == CHG_NOT_IN_PROGRESS) {
+
+ pr_info("%s: End due to fast_chg=%d\n",
+ __func__, pm_chg_get_rt_status(chip, FASTCHG_IRQ));
+ is_batt_full = false;
+ eoc_count = 0;
+ is_ac_safety_timeout_twice = false;
+ if (!flag_disable_wakelock)
+ wake_unlock(&chip->eoc_wake_lock);
+ return;
+ }
+
+ if (CONSECUTIVE_COUNT <= eoc_count)
+ end = CHG_FINISHED;
+
+ if (end == CHG_FINISHED) {
+ eoc_count++;
+ } else {
+ eoc_count = 0;
+ }
+
+ if (EOC_STOP_CHG_COUNT == eoc_count) {
+ eoc_count = 0;
+ is_ac_safety_timeout_twice = false;
+ pm_chg_program_vbatdet(chip);
+ pm_chg_disable_auto_enable(chip, 1, BATT_CHG_DISABLED_BIT_EOC);
+
+ if (is_ext_charging(chip))
+ chip->ext_charge_done = true;
+
+ if (chip->is_bat_warm || chip->is_bat_cool) {
+ pr_info("exit EXT-EOC-CHARGING phase at %s condition.\n",
+ (chip->is_bat_warm) ? "warm" : "cool");
+ is_batt_full = false;
+ } else {
+ pr_info("EXT-EOC-CHARGING phase done\n");
+ }
+ pr_info("vbatdet_low_irq=%d\n",
+ pm_chg_get_rt_status(chip, VBATDET_LOW_IRQ));
+
+ chgdone_irq_handler(chip->pmic_chg_irq[CHGDONE_IRQ], chip);
+
+ schedule_delayed_work(&chip->recharge_check_work,
+ round_jiffies_relative(msecs_to_jiffies
+ (EOC_CHECK_PERIOD_MS)));
+ wake_lock(&chip->recharge_check_wake_lock);
+
+ if (!flag_disable_wakelock)
+ wake_unlock(&chip->eoc_wake_lock);
+ return;
+ } else if (CONSECUTIVE_COUNT == eoc_count) {
+ if (chip->is_bat_warm || chip->is_bat_cool) {
+ pr_info("meet %s EOC condition.\n",
+ (chip->is_bat_warm) ? "warm" : "cool");
+ pm_chg_program_vbatdet(chip);
+ pm_chg_disable_auto_enable(chip, 1, BATT_CHG_DISABLED_BIT_EOC);
+ is_batt_full = false;
+
+ chgdone_irq_handler(chip->pmic_chg_irq[CHGDONE_IRQ], chip);
+ if (!flag_disable_wakelock)
+ wake_unlock(&chip->eoc_wake_lock);
+ } else {
+ pr_info("EXT-EOC-CHARGING phase start\n");
+ is_batt_full = true;
+ pm8921_bms_charging_end(1);
+ htc_gauge_event_notify(HTC_GAUGE_EVENT_EOC);
+ }
+ }
+
+ if (is_batt_full) {
+ soc = get_prop_batt_capacity(chip);
+ if (soc < CLEAR_FULL_STATE_BY_LEVEL_THR) {
+ is_batt_full = false;
+ eoc_count = 0;
+ pr_info("%s: Clear is_batt_full & eoc_count due to"
+ " Overloading happened, soc=%d\n",
+ __func__, soc);
+ htc_gauge_event_notify(HTC_GAUGE_EVENT_EOC);
+ }
+ }
+
+ pr_debug("EOC count = %d\n", eoc_count);
+ schedule_delayed_work(&chip->eoc_work,
+ round_jiffies_relative(msecs_to_jiffies
+ (EOC_CHECK_PERIOD_MS)));
+
+}
+
+static void btm_configure_work(struct work_struct *work)
+{
+ int rc;
+
+ rc = pm8xxx_adc_btm_configure(&btm_config);
+ if (rc)
+ pr_err("failed to configure btm rc=%d", rc);
+}
+
+DECLARE_WORK(btm_config_work, btm_configure_work);
+
+static DEFINE_SPINLOCK(set_current_lock);
+static void set_appropriate_battery_current(struct pm8921_chg_chip *chip)
+{
+ unsigned int chg_current = chip->max_bat_chg_current;
+ unsigned long flags;
+
+ spin_lock_irqsave(&set_current_lock, flags);
+ if (chip->is_bat_cool)
+ chg_current = min(chg_current, chip->cool_bat_chg_current);
+
+ if (chip->is_bat_warm)
+ chg_current = min(chg_current, chip->warm_bat_chg_current);
+
+ if (thermal_mitigation != 0 && chip->thermal_mitigation)
+ chg_current = min(chg_current,
+ chip->thermal_mitigation[thermal_mitigation]);
+
+ if (chg_limit_current != 0)
+ chg_current = min(chg_current, chg_limit_current);
+
+ pm_chg_ibatmax_set(the_chip, chg_current);
+ spin_unlock_irqrestore(&set_current_lock, flags);
+}
+
+int pm8921_limit_charge_enable(bool enable)
+{
+ pr_info("limit_charge=%d\n", enable);
+ if (!the_chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ if (enable)
+ chg_limit_current = PM8921_CHG_I_MIN_MA;
+ else
+ chg_limit_current = 0;
+
+ set_appropriate_battery_current(the_chip);
+ return 0;
+}
+
+#define TEMP_HYSTERISIS_DECIDEGC 20
+static void battery_cool(bool enter)
+{
+ pr_info("%s:enter=%d\n", __func__, enter);
+ if (enter == the_chip->is_bat_cool)
+ return;
+ the_chip->is_bat_cool = enter;
+ if (enter) {
+ btm_config.low_thr_temp =
+ the_chip->cool_temp_dc + TEMP_HYSTERISIS_DECIDEGC;
+ set_appropriate_battery_current(the_chip);
+ pm_chg_vddmax_set(the_chip, the_chip->cool_bat_voltage);
+ pm_chg_vbatdet_set(the_chip,
+ the_chip->cool_bat_voltage
+ - the_chip->resume_voltage_delta);
+ htc_gauge_event_notify(HTC_GAUGE_EVENT_TEMP_ZONE_CHANGE);
+ } else {
+ btm_config.low_thr_temp = the_chip->cool_temp_dc;
+ set_appropriate_battery_current(the_chip);
+ pm_chg_vddmax_set(the_chip, the_chip->max_voltage_mv);
+ pm_chg_vbatdet_set(the_chip, PM8921_CHG_VBATDET_MAX);
+ htc_gauge_event_notify(HTC_GAUGE_EVENT_TEMP_ZONE_CHANGE);
+ }
+
+
+ if(the_chip->ext_usb)
+ {
+ queue_delayed_work(ext_charger_wq, &ext_charger_temp_task, HZ/200);
+ }
+
+ schedule_work(&btm_config_work);
+}
+
+static void battery_warm(bool enter)
+{
+ pr_info("%s:enter=%d\n", __func__, enter);
+ if (enter == the_chip->is_bat_warm)
+ return;
+ the_chip->is_bat_warm = enter;
+ if (enter) {
+ btm_config.high_thr_temp =
+ the_chip->warm_temp_dc - TEMP_HYSTERISIS_DECIDEGC;
+ set_appropriate_battery_current(the_chip);
+ pm_chg_vddmax_set(the_chip, the_chip->warm_bat_voltage);
+ pm_chg_vbatdet_set(the_chip,
+ the_chip->warm_bat_voltage
+ - the_chip->resume_voltage_delta);
+ htc_gauge_event_notify(HTC_GAUGE_EVENT_TEMP_ZONE_CHANGE);
+ } else {
+ btm_config.high_thr_temp = the_chip->warm_temp_dc;
+ set_appropriate_battery_current(the_chip);
+ pm_chg_vddmax_set(the_chip, the_chip->max_voltage_mv);
+ pm_chg_vbatdet_set(the_chip, PM8921_CHG_VBATDET_MAX);
+ htc_gauge_event_notify(HTC_GAUGE_EVENT_TEMP_ZONE_CHANGE);
+ }
+
+
+ if(the_chip->ext_usb)
+ {
+ queue_delayed_work(ext_charger_wq, &ext_charger_temp_task, HZ/200);
+ }
+
+ schedule_work(&btm_config_work);
+}
+
+static int configure_btm(struct pm8921_chg_chip *chip)
+{
+ int rc;
+
+ if (chip->warm_temp_dc != INT_MIN)
+ btm_config.btm_warm_fn = battery_warm;
+ else
+ btm_config.btm_warm_fn = NULL;
+
+ if (chip->cool_temp_dc != INT_MIN)
+ btm_config.btm_cool_fn = battery_cool;
+ else
+ btm_config.btm_cool_fn = NULL;
+
+ btm_config.low_thr_temp = chip->cool_temp_dc;
+ btm_config.high_thr_temp = chip->warm_temp_dc;
+ btm_config.interval = chip->temp_check_period;
+ rc = pm8xxx_adc_btm_configure(&btm_config);
+ if (rc)
+ pr_err("failed to configure btm rc = %d\n", rc);
+ rc = pm8xxx_adc_btm_start();
+ if (rc)
+ pr_err("failed to start btm rc = %d\n", rc);
+
+ return rc;
+}
+
+int register_external_dc_charger(struct ext_chg_pm8921 *ext)
+{
+ if (the_chip == NULL) {
+ pr_err("called too early\n");
+ return -EINVAL;
+ }
+
+ the_chip->ext = ext;
+ the_chip->ext_charging = false;
+
+ if (is_dc_chg_plugged_in(the_chip))
+ pm8921_disable_source_current(true);
+
+ handle_start_ext_chg(the_chip);
+
+ return 0;
+}
+EXPORT_SYMBOL(register_external_dc_charger);
+
+void unregister_external_dc_charger(struct ext_chg_pm8921 *ext)
+{
+ if (the_chip == NULL) {
+ pr_err("called too early\n");
+ return;
+ }
+ handle_stop_ext_chg(the_chip);
+ the_chip->ext = NULL;
+}
+EXPORT_SYMBOL(unregister_external_dc_charger);
+
+static int set_usb_ovp_disable_param(const char *val, struct kernel_param *kp)
+{
+ int ret;
+
+ ret = param_set_int(val, kp);
+ if (ret) {
+ pr_err("set_usb_ovp_disable_param: error setting value %d\n", ret);
+ return ret;
+ }
+ pr_info("set_usb_ovp_disable_param: usb_ovp_disable=%d\n", usb_ovp_disable);
+ pm8921_usb_ovp_disable(usb_ovp_disable);
+ return 0;
+}
+module_param_call(ovp_disable, set_usb_ovp_disable_param, param_get_uint,
+ &usb_ovp_disable, 0644);
+
+static int set_disable_status_param(const char *val, struct kernel_param *kp)
+{
+ int ret;
+ struct pm8921_chg_chip *chip = the_chip;
+
+ ret = param_set_int(val, kp);
+ if (ret) {
+ pr_err("error setting value %d\n", ret);
+ return ret;
+ }
+ pr_info("factory set disable param to %d\n", charging_disabled);
+ if (chip) {
+ pm_chg_disable_auto_enable(chip, charging_disabled, BATT_CHG_DISABLED_BIT_USR1);
+ pm_chg_disable_pwrsrc(chip, charging_disabled, PWRSRC_DISABLED_BIT_USER);
+ }
+ return 0;
+}
+module_param_call(disabled, set_disable_status_param, param_get_uint,
+ &charging_disabled, 0644);
+
+static int set_auto_enable_param(const char *val, struct kernel_param *kp)
+{
+ int ret;
+ struct pm8921_chg_chip *chip = the_chip;
+
+ ret = param_set_int(val, kp);
+ if (ret) {
+ pr_err("error setting value %d\n", ret);
+ return ret;
+ }
+ pr_info("factory set auto enable param to %d\n", auto_enable);
+ if (chip)
+ pm_chg_disable_auto_enable(chip, !auto_enable, BATT_CHG_DISABLED_BIT_USR2);
+
+ return 0;
+}
+module_param_call(auto_enable, set_auto_enable_param, param_get_uint,
+ &auto_enable, 0644);
+
+static int set_therm_mitigation_level(const char *val, struct kernel_param *kp)
+{
+ int ret;
+ struct pm8921_chg_chip *chip = the_chip;
+
+ ret = param_set_int(val, kp);
+ if (ret) {
+ pr_err("error setting value %d\n", ret);
+ return ret;
+ }
+
+ if (!chip) {
+ pr_err("called before init\n");
+ return -EINVAL;
+ }
+
+ if (!chip->thermal_mitigation) {
+ pr_err("no thermal mitigation\n");
+ return -EINVAL;
+ }
+
+ if (thermal_mitigation < 0
+ || thermal_mitigation >= chip->thermal_levels) {
+ pr_err("out of bound level selected\n");
+ return -EINVAL;
+ }
+
+ pr_info("set mitigation level(%d) current=%d\n",
+ thermal_mitigation, chip->thermal_mitigation[thermal_mitigation]);
+ set_appropriate_battery_current(chip);
+ return ret;
+}
+module_param_call(thermal_mitigation, set_therm_mitigation_level,
+ param_get_uint,
+ &thermal_mitigation, 0644);
+
+static int set_usb_max_current(const char *val, struct kernel_param *kp)
+{
+ int ret, mA;
+ struct pm8921_chg_chip *chip = the_chip;
+
+ ret = param_set_int(val, kp);
+ if (ret) {
+ pr_err("error setting value %d\n", ret);
+ return ret;
+ }
+ if (chip) {
+ pr_warn("setting current max to %d\n", usb_max_current);
+ pm_chg_iusbmax_get(chip, &mA);
+ if (mA > usb_max_current)
+ pm8921_charger_vbus_draw(usb_max_current);
+ return 0;
+ }
+ return -EINVAL;
+}
+module_param_call(usb_max_current, set_usb_max_current, param_get_uint,
+ &usb_max_current, 0644);
+
+static void free_irqs(struct pm8921_chg_chip *chip)
+{
+ int i;
+
+ for (i = 0; i < PM_CHG_MAX_INTS; i++)
+ if (chip->pmic_chg_irq[i]) {
+ free_irq(chip->pmic_chg_irq[i], chip);
+ chip->pmic_chg_irq[i] = 0;
+ }
+}
+
+static void __devinit determine_initial_state(struct pm8921_chg_chip *chip)
+{
+ unsigned long flags;
+ int fsm_state;
+ int usb_present;
+
+ chip->dc_present = !!is_dc_chg_plugged_in(chip);
+ usb_present = !!is_usb_chg_plugged_in(chip);
+ usbin_ov_irq_state = pm_chg_get_rt_status(the_chip, USBIN_OV_IRQ);
+ usbin_uv_irq_state = pm_chg_get_rt_status(the_chip, USBIN_UV_IRQ);
+ if ( usbin_ov_irq_state && !usb_present && !usbin_uv_irq_state) {
+ if (!ovp) {
+ ovp = 1;
+ pr_info("init OVP: 0 -> 1\n");
+ }
+ } else if ( !usbin_ov_irq_state && !usb_present && usbin_uv_irq_state) {
+ if (!uvp) {
+ uvp = 1;
+ pr_info("init UVP: 0 -> 1\n");
+ }
+ }
+ bat_temp_ok_prev = pm_chg_get_rt_status(chip, BAT_TEMP_OK_IRQ);
+
+ pm8921_chg_enable_irq(chip, DCIN_VALID_IRQ);
+ pm8921_chg_enable_irq(chip, USBIN_VALID_IRQ);
+ pm8921_chg_enable_irq(chip, BATT_REMOVED_IRQ);
+ pm8921_chg_enable_irq(chip, BATT_INSERTED_IRQ);
+
+
+ pm8921_chg_enable_irq(chip, DCIN_OV_IRQ);
+ pm8921_chg_enable_irq(chip, DCIN_UV_IRQ);
+ pm8921_chg_enable_irq(chip, CHGFAIL_IRQ);
+ pm8921_chg_enable_irq(chip, FASTCHG_IRQ);
+ pm8921_chg_enable_irq(chip, VBATDET_LOW_IRQ);
+ pm8921_chg_enable_irq(chip, BATTTEMP_HOT_IRQ);
+ pm8921_chg_enable_irq(chip, BATTTEMP_COLD_IRQ);
+ pm8921_chg_enable_irq(chip, BAT_TEMP_OK_IRQ);
+
+ spin_lock_irqsave(&vbus_lock, flags);
+
+ cable_detection_vbus_irq_handler();
+ fastchg_irq_handler(chip->pmic_chg_irq[FASTCHG_IRQ], chip);
+#if 0
+ if (usb_chg_current) {
+
+ handle_usb_insertion_removal(chip);
+ fastchg_irq_handler(chip->pmic_chg_irq[FASTCHG_IRQ], chip);
+ }
+#endif
+ spin_unlock_irqrestore(&vbus_lock, flags);
+
+ fsm_state = pm_chg_get_fsm_state(chip);
+ if (is_battery_charging(fsm_state)) {
+ chip->bms_notify.is_charging = 1;
+ pm8921_bms_charging_began();
+ }
+
+ check_battery_valid(chip);
+
+ pr_debug("usb = %d, dc = %d batt = %d state=%d\n",
+ usb_present,
+ chip->dc_present,
+ get_prop_batt_present(chip),
+ fsm_state);
+}
+
+struct pm_chg_irq_init_data {
+ unsigned int irq_id;
+ char *name;
+ unsigned long flags;
+ irqreturn_t (*handler)(int, void *);
+};
+
+#define CHG_IRQ(_id, _flags, _handler) \
+{ \
+ .irq_id = _id, \
+ .name = #_id, \
+ .flags = _flags, \
+ .handler = _handler, \
+}
+struct pm_chg_irq_init_data chg_irq_data[] = {
+ CHG_IRQ(USBIN_VALID_IRQ, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ usbin_valid_irq_handler),
+ CHG_IRQ(USBIN_OV_IRQ, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ usbin_ov_irq_handler),
+ CHG_IRQ(BATT_INSERTED_IRQ, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ batt_inserted_irq_handler),
+ CHG_IRQ(VBATDET_LOW_IRQ, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ vbatdet_low_irq_handler),
+ CHG_IRQ(USBIN_UV_IRQ, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ usbin_uv_irq_handler),
+ CHG_IRQ(VBAT_OV_IRQ, IRQF_TRIGGER_RISING, vbat_ov_irq_handler),
+ CHG_IRQ(CHGWDOG_IRQ, IRQF_TRIGGER_RISING, chgwdog_irq_handler),
+ CHG_IRQ(VCP_IRQ, IRQF_TRIGGER_RISING, vcp_irq_handler),
+ CHG_IRQ(ATCDONE_IRQ, IRQF_TRIGGER_RISING, atcdone_irq_handler),
+ CHG_IRQ(ATCFAIL_IRQ, IRQF_TRIGGER_RISING, atcfail_irq_handler),
+ CHG_IRQ(CHGDONE_IRQ, IRQF_TRIGGER_RISING, chgdone_irq_handler),
+ CHG_IRQ(CHGFAIL_IRQ, IRQF_TRIGGER_RISING, chgfail_irq_handler),
+ CHG_IRQ(CHGSTATE_IRQ, IRQF_TRIGGER_RISING, chgstate_irq_handler),
+ CHG_IRQ(LOOP_CHANGE_IRQ, IRQF_TRIGGER_RISING, loop_change_irq_handler),
+ CHG_IRQ(FASTCHG_IRQ, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ fastchg_irq_handler),
+ CHG_IRQ(TRKLCHG_IRQ, IRQF_TRIGGER_RISING, trklchg_irq_handler),
+ CHG_IRQ(BATT_REMOVED_IRQ, IRQF_TRIGGER_RISING,
+ batt_removed_irq_handler),
+ CHG_IRQ(BATTTEMP_HOT_IRQ, IRQF_TRIGGER_RISING,
+ batttemp_hot_irq_handler),
+ CHG_IRQ(CHGHOT_IRQ, IRQF_TRIGGER_RISING, chghot_irq_handler),
+ CHG_IRQ(BATTTEMP_COLD_IRQ, IRQF_TRIGGER_RISING,
+ batttemp_cold_irq_handler),
+ CHG_IRQ(CHG_GONE_IRQ, IRQF_TRIGGER_RISING |IRQF_TRIGGER_FALLING , chg_gone_irq_handler),
+ CHG_IRQ(BAT_TEMP_OK_IRQ, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ bat_temp_ok_irq_handler),
+ CHG_IRQ(COARSE_DET_LOW_IRQ, IRQF_TRIGGER_RISING,
+ coarse_det_low_irq_handler),
+ CHG_IRQ(VDD_LOOP_IRQ, IRQF_TRIGGER_RISING, vdd_loop_irq_handler),
+ CHG_IRQ(VREG_OV_IRQ, IRQF_TRIGGER_RISING, vreg_ov_irq_handler),
+ CHG_IRQ(VBATDET_IRQ, IRQF_TRIGGER_RISING, vbatdet_irq_handler),
+ CHG_IRQ(BATFET_IRQ, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ batfet_irq_handler),
+ CHG_IRQ(DCIN_VALID_IRQ, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+ dcin_valid_irq_handler),
+ CHG_IRQ(DCIN_OV_IRQ, IRQF_TRIGGER_RISING, dcin_ov_irq_handler),
+ CHG_IRQ(DCIN_UV_IRQ, IRQF_TRIGGER_RISING, dcin_uv_irq_handler),
+};
+
+static int __devinit request_irqs(struct pm8921_chg_chip *chip,
+ struct platform_device *pdev)
+{
+ struct resource *res;
+ int ret, i;
+
+ ret = 0;
+ bitmap_fill(chip->enabled_irqs, PM_CHG_MAX_INTS);
+
+ for (i = 0; i < ARRAY_SIZE(chg_irq_data); i++) {
+ res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+ chg_irq_data[i].name);
+ if (res == NULL) {
+ pr_err("couldn't find %s\n", chg_irq_data[i].name);
+ goto err_out;
+ }
+ chip->pmic_chg_irq[chg_irq_data[i].irq_id] = res->start;
+ ret = request_irq(res->start, chg_irq_data[i].handler,
+ chg_irq_data[i].flags,
+ chg_irq_data[i].name, chip);
+ if (ret < 0) {
+ pr_err("couldn't request %d (%s) %d\n", res->start,
+ chg_irq_data[i].name, ret);
+ chip->pmic_chg_irq[chg_irq_data[i].irq_id] = 0;
+ goto err_out;
+ }
+ pm8921_chg_disable_irq(chip, chg_irq_data[i].irq_id);
+ }
+ return 0;
+
+err_out:
+ free_irqs(chip);
+ return -EINVAL;
+}
+
+static void pm8921_chg_force_19p2mhz_clk(struct pm8921_chg_chip *chip)
+{
+ int err;
+ u8 temp;
+
+ temp = 0xD1;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return;
+ }
+
+ temp = 0xD3;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return;
+ }
+
+ temp = 0xD1;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return;
+ }
+
+ temp = 0xD5;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return;
+ }
+
+ udelay(183);
+
+ temp = 0xD1;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return;
+ }
+
+ temp = 0xD0;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return;
+ }
+ udelay(32);
+
+ temp = 0xD1;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return;
+ }
+
+ temp = 0xD3;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return;
+ }
+}
+
+static void pm8921_chg_set_hw_clk_switching(struct pm8921_chg_chip *chip)
+{
+ int err;
+ u8 temp;
+
+ temp = 0xD1;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return;
+ }
+
+ temp = 0xD0;
+ err = pm8xxx_writeb(chip->dev->parent, CHG_TEST, temp);
+ if (err) {
+ pr_err("Error %d writing %d to addr %d\n", err, temp, CHG_TEST);
+ return;
+ }
+}
+
+#define ENUM_TIMER_STOP_BIT BIT(1)
+#define BOOT_DONE_BIT BIT(6)
+#define CHG_BATFET_ON_BIT BIT(3)
+#define CHG_VCP_EN BIT(0)
+#define CHG_BAT_TEMP_DIS_BIT BIT(2)
+#define SAFE_CURRENT_MA 1500
+#define VREF_BATT_THERM_FORCE_ON BIT(7)
+static int __devinit pm8921_chg_hw_init(struct pm8921_chg_chip *chip)
+{
+ int rc;
+ unsigned long flags;
+
+
+ pm8921_chg_force_19p2mhz_clk(chip);
+
+ rc = pm_chg_masked_write(chip, SYS_CONFIG_2,
+ BOOT_DONE_BIT, BOOT_DONE_BIT);
+ if (rc) {
+ pr_err("Failed to set BOOT_DONE_BIT rc=%d\n", rc);
+ return rc;
+ }
+
+ rc = pm_chg_vddsafe_set(chip, chip->max_voltage_mv);
+ if (rc) {
+ pr_err("Failed to set safe voltage to %d rc=%d\n",
+ chip->max_voltage_mv, rc);
+ return rc;
+ }
+
+ pr_info("Init: Set vbatdet=%d\n", PM8921_CHG_VBATDET_MAX);
+ rc = pm_chg_vbatdet_set(chip, PM8921_CHG_VBATDET_MAX);
+ if (rc) {
+ pr_err("Failed to set vbatdet comprator voltage to %d rc=%d\n",
+ chip->max_voltage_mv, rc);
+ return rc;
+ }
+
+ rc = pm_chg_vddmax_set(chip, chip->max_voltage_mv);
+ if (rc) {
+ pr_err("Failed to set max voltage to %d rc=%d\n",
+ chip->max_voltage_mv, rc);
+ return rc;
+ }
+ rc = pm_chg_ibatsafe_set(chip, SAFE_CURRENT_MA);
+ if (rc) {
+ pr_err("Failed to set max voltage to %d rc=%d\n",
+ SAFE_CURRENT_MA, rc);
+ return rc;
+ }
+
+ rc = pm_chg_ibatmax_set(chip, chip->max_bat_chg_current);
+ if (rc) {
+ pr_err("Failed to set max current to 400 rc=%d\n", rc);
+ return rc;
+ }
+
+ rc = pm_chg_iterm_set(chip, chip->term_current);
+ if (rc) {
+ pr_err("Failed to set term current to %d rc=%d\n",
+ chip->term_current, rc);
+ return rc;
+ }
+
+
+ rc = pm_chg_masked_write(chip, PBL_ACCESS2, ENUM_TIMER_STOP_BIT,
+ ENUM_TIMER_STOP_BIT);
+ if (rc) {
+ pr_err("Failed to set enum timer stop rc=%d\n", rc);
+ return rc;
+ }
+
+ if (chip->safety_time != 0) {
+ if (chip->safety_time > SAFETY_TIME_MAX_LIMIT) {
+ rc = pm_chg_tchg_max_set(chip, SAFETY_TIME_8HR_TWICE);
+ } else {
+ rc = pm_chg_tchg_max_set(chip, chip->safety_time);
+ }
+ if (rc) {
+ pr_err("Failed to set max time to %d minutes rc=%d\n",
+ chip->safety_time, rc);
+ return rc;
+ }
+ }
+
+ if (chip->ttrkl_time != 0) {
+ rc = pm_chg_ttrkl_max_set(chip, chip->ttrkl_time);
+ if (rc) {
+ pr_err("Failed to set trkl time to %d minutes rc=%d\n",
+ chip->ttrkl_time, rc);
+ return rc;
+ }
+ }
+
+ if (chip->vin_min != 0) {
+ rc = pm_chg_vinmin_set(chip, chip->vin_min);
+ if (rc) {
+ pr_err("Failed to set vin min to %d mV rc=%d\n",
+ chip->vin_min, rc);
+ return rc;
+ }
+ } else
+ chip->vin_min = pm_chg_vinmin_get(chip);
+
+ rc = pm_chg_disable_wd(chip);
+ if (rc) {
+ pr_err("Failed to disable wd rc=%d\n", rc);
+ return rc;
+ }
+
+ if (flag_keep_charge_on || flag_pa_recharge)
+ rc = pm_chg_masked_write(chip, CHG_CNTRL_2,
+ CHG_BAT_TEMP_DIS_BIT,
+ CHG_BAT_TEMP_DIS_BIT);
+ else
+ rc = pm_chg_masked_write(chip, CHG_CNTRL_2,
+ CHG_BAT_TEMP_DIS_BIT, 0);
+ if (rc) {
+ pr_err("Failed to enable/disable temp control chg rc=%d\n", rc);
+ return rc;
+ }
+
+
+ rc = pm8xxx_writeb(chip->dev->parent, CHG_BUCK_CLOCK_CTRL, 0x15);
+ if (rc) {
+ pr_err("Failed to switch buck clk rc=%d\n", rc);
+ return rc;
+ }
+
+ if (chip->trkl_voltage != 0) {
+ rc = pm_chg_vtrkl_low_set(chip, chip->trkl_voltage);
+ if (rc) {
+ pr_err("Failed to set trkl voltage to %dmv rc=%d\n",
+ chip->trkl_voltage, rc);
+ return rc;
+ }
+ }
+
+ if (chip->weak_voltage != 0) {
+ rc = pm_chg_vweak_set(chip, chip->weak_voltage);
+ if (rc) {
+ pr_err("Failed to set weak voltage to %dmv rc=%d\n",
+ chip->weak_voltage, rc);
+ return rc;
+ }
+ }
+
+ if (chip->trkl_current != 0) {
+ rc = pm_chg_itrkl_set(chip, chip->trkl_current);
+ if (rc) {
+ pr_err("Failed to set trkl current to %dmA rc=%d\n",
+ chip->trkl_voltage, rc);
+ return rc;
+ }
+ }
+
+ if (chip->weak_current != 0) {
+ rc = pm_chg_iweak_set(chip, chip->weak_current);
+ if (rc) {
+ pr_err("Failed to set weak current to %dmA rc=%d\n",
+ chip->weak_current, rc);
+ return rc;
+ }
+ }
+
+ rc = pm_chg_batt_cold_temp_config(chip, chip->cold_thr);
+ if (rc) {
+ pr_err("Failed to set cold config %d rc=%d\n",
+ chip->cold_thr, rc);
+ }
+
+ rc = pm_chg_batt_hot_temp_config(chip, chip->hot_thr);
+ if (rc) {
+ pr_err("Failed to set hot config %d rc=%d\n",
+ chip->hot_thr, rc);
+ }
+
+
+ if (pm8xxx_get_revision(chip->dev->parent) < PM8XXX_REVISION_8921_2p0) {
+ pm8xxx_writeb(chip->dev->parent, CHG_BUCK_CTRL_TEST2, 0xF1);
+ pm8xxx_writeb(chip->dev->parent, CHG_BUCK_CTRL_TEST3, 0xCE);
+ pm8xxx_writeb(chip->dev->parent, CHG_BUCK_CTRL_TEST3, 0xD8);
+
+
+ pm8xxx_writeb(chip->dev->parent, PSI_TXRX_SAMPLE_DATA_0, 0xFF);
+ pm8xxx_writeb(chip->dev->parent, PSI_TXRX_SAMPLE_DATA_1, 0xFF);
+ pm8xxx_writeb(chip->dev->parent, PSI_TXRX_SAMPLE_DATA_2, 0xFF);
+ pm8xxx_writeb(chip->dev->parent, PSI_TXRX_SAMPLE_DATA_3, 0xFF);
+ pm8xxx_writeb(chip->dev->parent, PSI_CONFIG_STATUS, 0x0D);
+ udelay(100);
+ pm8xxx_writeb(chip->dev->parent, PSI_CONFIG_STATUS, 0x0C);
+ }
+
+
+ if (pm8xxx_get_revision(chip->dev->parent) == PM8XXX_REVISION_8921_3p0)
+ pm8xxx_writeb(chip->dev->parent, CHG_BUCK_CTRL_TEST3, 0xAC);
+
+ pm8xxx_writeb(chip->dev->parent, CHG_BUCK_CTRL_TEST3, 0xD9);
+
+
+ pm8xxx_writeb(chip->dev->parent, CHG_BUCK_CTRL_TEST3, 0x91);
+
+ rc = pm_chg_masked_write(chip, CHG_CNTRL, VREF_BATT_THERM_FORCE_ON,
+ VREF_BATT_THERM_FORCE_ON);
+ if (rc)
+ pr_err("Failed to Force Vref therm rc=%d\n", rc);
+
+ spin_lock_irqsave(&pwrsrc_lock, flags);
+ rc = pm_chg_charge_dis(chip, charging_disabled);
+ spin_unlock_irqrestore(&pwrsrc_lock, flags);
+ if (rc) {
+ pr_err("Failed to disable CHG_CHARGE_DIS bit rc=%d\n", rc);
+ return rc;
+ }
+
+ spin_lock_irqsave(&charger_lock, flags);
+ rc = pm_chg_auto_enable(chip, !batt_charging_disabled);
+ spin_unlock_irqrestore(&charger_lock, flags);
+ if (rc) {
+ pr_err("Failed to enable charging rc=%d\n", rc);
+ return rc;
+ }
+
+ return 0;
+}
+
+static int get_rt_status(void *data, u64 *val)
+{
+ int i = (int)data;
+ int ret;
+
+
+ ret = pm_chg_get_rt_status(the_chip, i);
+ *val = ret;
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(rt_fops, get_rt_status, NULL, "%llu\n");
+
+static int get_fsm_status(void *data, u64 *val)
+{
+ u8 temp;
+
+ temp = pm_chg_get_fsm_state(the_chip);
+ *val = temp;
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fsm_fops, get_fsm_status, NULL, "%llu\n");
+
+static int get_reg_loop(void *data, u64 *val)
+{
+ u8 temp;
+
+ if (!the_chip) {
+ pr_err("%s called before init\n", __func__);
+ return -EINVAL;
+ }
+ temp = pm_chg_get_regulation_loop(the_chip);
+ *val = temp;
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(reg_loop_fops, get_reg_loop, NULL, "0x%02llx\n");
+
+static int get_reg(void *data, u64 *val)
+{
+ int addr = (int)data;
+ int ret;
+ u8 temp;
+
+ ret = pm8xxx_readb(the_chip->dev->parent, addr, &temp);
+ if (ret) {
+ pr_err("pm8xxx_readb to %x value =%d errored = %d\n",
+ addr, temp, ret);
+ return -EAGAIN;
+ }
+ *val = temp;
+ return 0;
+}
+
+static int set_reg(void *data, u64 val)
+{
+ int addr = (int)data;
+ int ret;
+ u8 temp;
+
+ temp = (u8) val;
+ ret = pm8xxx_writeb(the_chip->dev->parent, addr, temp);
+ if (ret) {
+ pr_err("pm8xxx_writeb to %x value =%d errored = %d\n",
+ addr, temp, ret);
+ return -EAGAIN;
+ }
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(reg_fops, get_reg, set_reg, "0x%02llx\n");
+
+enum {
+ BAT_WARM_ZONE,
+ BAT_COOL_ZONE,
+};
+static int get_warm_cool(void *data, u64 * val)
+{
+ if (!the_chip) {
+ pr_err("%s called before init\n", __func__);
+ return -EINVAL;
+ }
+ if ((int)data == BAT_WARM_ZONE)
+ *val = the_chip->is_bat_warm;
+ if ((int)data == BAT_COOL_ZONE)
+ *val = the_chip->is_bat_cool;
+ return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(warm_cool_fops, get_warm_cool, NULL, "0x%lld\n");
+
+static void create_debugfs_entries(struct pm8921_chg_chip *chip)
+{
+ int i;
+
+ chip->dent = debugfs_create_dir("pm8921_chg", NULL);
+
+ if (IS_ERR(chip->dent)) {
+ pr_err("pmic charger couldnt create debugfs dir\n");
+ return;
+ }
+
+ debugfs_create_file("CHG_CNTRL", 0644, chip->dent,
+ (void *)CHG_CNTRL, ®_fops);
+ debugfs_create_file("CHG_CNTRL_2", 0644, chip->dent,
+ (void *)CHG_CNTRL_2, ®_fops);
+ debugfs_create_file("CHG_CNTRL_3", 0644, chip->dent,
+ (void *)CHG_CNTRL_3, ®_fops);
+ debugfs_create_file("PBL_ACCESS1", 0644, chip->dent,
+ (void *)PBL_ACCESS1, ®_fops);
+ debugfs_create_file("PBL_ACCESS2", 0644, chip->dent,
+ (void *)PBL_ACCESS2, ®_fops);
+ debugfs_create_file("SYS_CONFIG_1", 0644, chip->dent,
+ (void *)SYS_CONFIG_1, ®_fops);
+ debugfs_create_file("SYS_CONFIG_2", 0644, chip->dent,
+ (void *)SYS_CONFIG_2, ®_fops);
+ debugfs_create_file("CHG_VDD_MAX", 0644, chip->dent,
+ (void *)CHG_VDD_MAX, ®_fops);
+ debugfs_create_file("CHG_VDD_SAFE", 0644, chip->dent,
+ (void *)CHG_VDD_SAFE, ®_fops);
+ debugfs_create_file("CHG_VBAT_DET", 0644, chip->dent,
+ (void *)CHG_VBAT_DET, ®_fops);
+ debugfs_create_file("CHG_IBAT_MAX", 0644, chip->dent,
+ (void *)CHG_IBAT_MAX, ®_fops);
+ debugfs_create_file("CHG_IBAT_SAFE", 0644, chip->dent,
+ (void *)CHG_IBAT_SAFE, ®_fops);
+ debugfs_create_file("CHG_VIN_MIN", 0644, chip->dent,
+ (void *)CHG_VIN_MIN, ®_fops);
+ debugfs_create_file("CHG_VTRICKLE", 0644, chip->dent,
+ (void *)CHG_VTRICKLE, ®_fops);
+ debugfs_create_file("CHG_ITRICKLE", 0644, chip->dent,
+ (void *)CHG_ITRICKLE, ®_fops);
+ debugfs_create_file("CHG_ITERM", 0644, chip->dent,
+ (void *)CHG_ITERM, ®_fops);
+ debugfs_create_file("CHG_TCHG_MAX", 0644, chip->dent,
+ (void *)CHG_TCHG_MAX, ®_fops);
+ debugfs_create_file("CHG_TWDOG", 0644, chip->dent,
+ (void *)CHG_TWDOG, ®_fops);
+ debugfs_create_file("CHG_TEMP_THRESH", 0644, chip->dent,
+ (void *)CHG_TEMP_THRESH, ®_fops);
+ debugfs_create_file("CHG_COMP_OVR", 0644, chip->dent,
+ (void *)CHG_COMP_OVR, ®_fops);
+ debugfs_create_file("CHG_BUCK_CTRL_TEST1", 0644, chip->dent,
+ (void *)CHG_BUCK_CTRL_TEST1, ®_fops);
+ debugfs_create_file("CHG_BUCK_CTRL_TEST2", 0644, chip->dent,
+ (void *)CHG_BUCK_CTRL_TEST2, ®_fops);
+ debugfs_create_file("CHG_BUCK_CTRL_TEST3", 0644, chip->dent,
+ (void *)CHG_BUCK_CTRL_TEST3, ®_fops);
+ debugfs_create_file("CHG_TEST", 0644, chip->dent,
+ (void *)CHG_TEST, ®_fops);
+ debugfs_create_file("USB_OVP_CONTROL", 0644, chip->dent,
+ (void *)USB_OVP_CONTROL, ®_fops);
+
+ debugfs_create_file("FSM_STATE", 0644, chip->dent, NULL,
+ &fsm_fops);
+
+ debugfs_create_file("REGULATION_LOOP_CONTROL", 0644, chip->dent, NULL,
+ ®_loop_fops);
+
+ debugfs_create_file("BAT_WARM_ZONE", 0644, chip->dent,
+ (void *)BAT_WARM_ZONE, &warm_cool_fops);
+ debugfs_create_file("BAT_COOL_ZONE", 0644, chip->dent,
+ (void *)BAT_COOL_ZONE, &warm_cool_fops);
+
+ for (i = 0; i < ARRAY_SIZE(chg_irq_data); i++) {
+ if (chip->pmic_chg_irq[chg_irq_data[i].irq_id])
+ debugfs_create_file(chg_irq_data[i].name, 0444,
+ chip->dent,
+ (void *)chg_irq_data[i].irq_id,
+ &rt_fops);
+ }
+}
+
+static void pm_chg_reset_warm_cool_state(struct pm8921_chg_chip *chip)
+{
+ pr_debug("chip->is_bat_warm=%d, chip->is_bat_cool=%d\n",
+ chip->is_bat_warm, chip->is_bat_cool);
+
+ if (chip->is_bat_cool)
+ battery_cool(0);
+ if (chip->is_bat_warm)
+ battery_warm(0);
+}
+
+static int pm8921_charger_suspend_noirq(struct device *dev)
+{
+ int rc;
+ struct pm8921_chg_chip *chip = dev_get_drvdata(dev);
+
+ rc = pm_chg_masked_write(chip, CHG_CNTRL, VREF_BATT_THERM_FORCE_ON, 0);
+ if (rc)
+ pr_err("Failed to Force Vref therm off rc=%d\n", rc);
+ pm8921_chg_set_hw_clk_switching(chip);
+ return 0;
+}
+
+static int pm8921_charger_resume_noirq(struct device *dev)
+{
+ int rc;
+ struct pm8921_chg_chip *chip = dev_get_drvdata(dev);
+
+ pm8921_chg_force_19p2mhz_clk(chip);
+
+ rc = pm_chg_masked_write(chip, CHG_CNTRL, VREF_BATT_THERM_FORCE_ON,
+ VREF_BATT_THERM_FORCE_ON);
+ if (rc)
+ pr_err("Failed to Force Vref therm on rc=%d\n", rc);
+ return 0;
+}
+
+static int pm8921_charger_resume(struct device *dev)
+{
+ int rc;
+ struct pm8921_chg_chip *chip = dev_get_drvdata(dev);
+
+ if (!(chip->cool_temp_dc == INT_MIN && chip->warm_temp_dc == INT_MIN)
+ && !(chip->keep_btm_on_suspend)) {
+ rc = pm8xxx_adc_btm_configure(&btm_config);
+ if (rc)
+ pr_err("couldn't reconfigure btm rc=%d\n", rc);
+
+ pm_chg_reset_warm_cool_state(chip);
+
+ rc = pm8xxx_adc_btm_start();
+ if (rc)
+ pr_err("couldn't restart btm rc=%d\n", rc);
+ }
+ if (pm8921_chg_is_enabled(chip, LOOP_CHANGE_IRQ)) {
+ disable_irq_wake(chip->pmic_chg_irq[LOOP_CHANGE_IRQ]);
+ pm8921_chg_disable_irq(chip, LOOP_CHANGE_IRQ);
+ }
+ return 0;
+}
+
+static int pm8921_charger_suspend(struct device *dev)
+{
+ int rc;
+ struct pm8921_chg_chip *chip = dev_get_drvdata(dev);
+
+ if (!(chip->cool_temp_dc == INT_MIN && chip->warm_temp_dc == INT_MIN)
+ && !(chip->keep_btm_on_suspend)) {
+ rc = pm8xxx_adc_btm_end();
+ if (rc)
+ pr_err("Failed to disable BTM on suspend rc=%d\n", rc);
+ }
+ if (is_usb_chg_plugged_in(chip)) {
+ pm8921_chg_enable_irq(chip, LOOP_CHANGE_IRQ);
+ enable_irq_wake(chip->pmic_chg_irq[LOOP_CHANGE_IRQ]);
+ }
+ return 0;
+}
+
+static const struct dev_pm_ops pm8921_charger_pm_ops = {
+ .suspend = pm8921_charger_suspend,
+ .suspend_noirq = pm8921_charger_suspend_noirq,
+ .resume_noirq = pm8921_charger_resume_noirq,
+ .resume = pm8921_charger_resume,
+};
+
+static void ext_charger_vbat_low_handler(struct work_struct *w)
+{
+ int result;
+
+ pm8921_get_batt_voltage(&result);
+
+ pr_info("%s, vol:%d\n", __func__, result);
+
+
+
+ if(!(the_chip->ext_usb->ichg->event_notify))
+ {
+ pr_err("%s event_notify api error!\n", __func__);
+ return;
+ }
+
+ the_chip->ext_usb->ichg->event_notify(HTC_EXTCHG_EVENT_TYPE_EOC_START_CHARGE);
+
+
+ if (!flag_disable_wakelock)
+ wake_lock(&the_chip->eoc_wake_lock);
+ schedule_delayed_work(&the_chip->eoc_work,
+ round_jiffies_relative(msecs_to_jiffies
+ (EOC_CHECK_PERIOD_MS)));
+
+ return;
+}
+
+
+static void ext_charger_chgdone_handler(struct work_struct *w)
+{
+ int result;
+
+ pm8921_get_batt_voltage(&result);
+
+ pr_info("%s, vol:%d\n", __func__, result);
+
+ if(!(the_chip->ext_usb->ichg->event_notify))
+ {
+ pr_err("%s event_notify api error!\n", __func__);
+ return;
+ }
+
+
+ the_chip->ext_usb->ichg->event_notify(HTC_EXTCHG_EVENT_TYPE_EOC_STOP_CHARGE);
+
+ return;
+}
+
+
+static void ext_charger_temp_handler(struct work_struct *w)
+{
+ int new_temp;
+ int hot_irq;
+ int cold_irq;
+
+ cold_irq = pm_chg_get_rt_status(the_chip, BATTTEMP_COLD_IRQ);
+ hot_irq = pm_chg_get_rt_status(the_chip, BATTTEMP_HOT_IRQ);
+
+ pr_info("%s, cold_irq:%d, hot_irq:%d, is_bat_warm:%d, is_bat_cool:%d,\n",
+ __func__, cold_irq, hot_irq, the_chip->is_bat_warm, the_chip->is_bat_cool);
+
+
+ if(!(the_chip->ext_usb->ichg->event_notify))
+ {
+ pr_err("%s event_notify api error!\n", __func__);
+ return;
+ }
+
+
+ if(the_chip->is_bat_warm)
+ {
+ if(hot_irq)
+ new_temp = HTC_EXTCHG_EVENT_TYPE_TEMP_HOT;
+ else
+ new_temp = HTC_EXTCHG_EVENT_TYPE_TEMP_WARM;
+ }
+ else if(the_chip->is_bat_cool)
+ {
+ if(cold_irq)
+ new_temp = HTC_EXTCHG_EVENT_TYPE_TEMP_COLD;
+ else
+ new_temp = HTC_EXTCHG_EVENT_TYPE_TEMP_COOL;
+ }
+ else
+ new_temp = HTC_EXTCHG_EVENT_TYPE_TEMP_NORMAL;
+
+
+
+ if(extchg_temp_condition_old == new_temp)
+ return;
+
+
+ the_chip->ext_usb->ichg->event_notify(new_temp);
+
+ extchg_temp_condition_old = new_temp;
+
+}
+
+static int __devinit pm8921_charger_probe(struct platform_device *pdev)
+{
+ int rc = 0;
+ struct pm8921_chg_chip *chip;
+ const struct pm8921_charger_platform_data *pdata
+ = pdev->dev.platform_data;
+ const struct pm8921_charger_batt_param *chg_batt_param;
+
+
+ if (!pdata) {
+ pr_err("missing platform data\n");
+ return -EINVAL;
+ }
+
+ chip = kzalloc(sizeof(struct pm8921_chg_chip),
+ GFP_KERNEL);
+ if (!chip) {
+ pr_err("Cannot allocate pm_chg_chip\n");
+ return -ENOMEM;
+ }
+
+ chip->dev = &pdev->dev;
+ chip->safety_time = pdata->safety_time;
+ chip->ttrkl_time = pdata->ttrkl_time;
+ chip->update_time = pdata->update_time;
+
+ chg_batt_param = htc_battery_cell_get_cur_cell_charger_cdata();
+ if (!chg_batt_param) {
+ chip->max_voltage_mv = pdata->max_voltage;
+ chip->cool_bat_voltage = pdata->cool_bat_voltage;
+ chip->warm_bat_voltage = pdata->warm_bat_voltage;
+ } else {
+ chip->max_voltage_mv = chg_batt_param->max_voltage;
+ chip->cool_bat_voltage = chg_batt_param->cool_bat_voltage;
+ chip->warm_bat_voltage = chg_batt_param->warm_bat_voltage;
+ }
+ pr_info("%s: max_vbat=%u, cool_vbat=%u, warm_vbat=%u\n",
+ __func__, chip->max_voltage_mv, chip->cool_bat_voltage,
+ chip->warm_bat_voltage);
+ chip->min_voltage_mv = pdata->min_voltage;
+ chip->resume_voltage_delta = pdata->resume_voltage_delta;
+ chip->term_current = pdata->term_current;
+ chip->vbat_channel = pdata->charger_cdata.vbat_channel;
+ chip->batt_temp_channel = pdata->charger_cdata.batt_temp_channel;
+ chip->batt_id_channel = pdata->charger_cdata.batt_id_channel;
+ chip->batt_id_min = pdata->batt_id_min;
+ chip->batt_id_max = pdata->batt_id_max;
+ if (pdata->cool_temp != INT_MIN)
+ chip->cool_temp_dc = pdata->cool_temp * 10;
+ else
+ chip->cool_temp_dc = INT_MIN;
+
+ if (pdata->warm_temp != INT_MIN)
+ chip->warm_temp_dc = pdata->warm_temp * 10;
+ else
+ chip->warm_temp_dc = INT_MIN;
+
+ chip->temp_check_period = pdata->temp_check_period;
+ chip->dc_unplug_check = pdata->dc_unplug_check;
+ chip->max_bat_chg_current = pdata->max_bat_chg_current;
+ chip->cool_bat_chg_current = pdata->cool_bat_chg_current;
+ chip->warm_bat_chg_current = pdata->warm_bat_chg_current;
+ chip->keep_btm_on_suspend = pdata->keep_btm_on_suspend;
+ chip->trkl_voltage = pdata->trkl_voltage;
+ chip->weak_voltage = pdata->weak_voltage;
+ chip->trkl_current = pdata->trkl_current;
+ chip->weak_current = pdata->weak_current;
+ chip->vin_min = pdata->vin_min;
+ chip->thermal_mitigation = pdata->thermal_mitigation;
+ chip->thermal_levels = pdata->thermal_levels;
+ chip->mbat_in_gpio = pdata->mbat_in_gpio;
+ chip->is_embeded_batt = pdata->is_embeded_batt;
+
+ chip->cold_thr = pdata->cold_thr;
+ chip->hot_thr = pdata->hot_thr;
+
+ chip->ext_usb = pdata->ext_usb;
+
+ rc = pm8921_chg_hw_init(chip);
+ if (rc) {
+ pr_err("couldn't init hardware rc=%d\n", rc);
+ goto free_chip;
+ }
+
+ platform_set_drvdata(pdev, chip);
+ the_chip = chip;
+
+ wake_lock_init(&chip->eoc_wake_lock, WAKE_LOCK_SUSPEND, "pm8921_eoc");
+ wake_lock_init(&chip->recharge_check_wake_lock, WAKE_LOCK_SUSPEND,
+ "pm8921_recharge_check");
+ wake_lock_init(&chip->unplug_ovp_fet_open_wake_lock,
+ WAKE_LOCK_SUSPEND, "pm8921_unplug_ovp_fet_open_wake_lock");
+ INIT_DELAYED_WORK(&chip->eoc_work, eoc_worker);
+ INIT_DELAYED_WORK(&chip->recharge_check_work, recharge_check_worker);
+ INIT_DELAYED_WORK(&chip->vin_collapse_check_work,
+ vin_collapse_check_worker);
+ INIT_WORK(&chip->unplug_ovp_fet_open_work,
+ unplug_ovp_fet_open_worker);
+ INIT_DELAYED_WORK(&chip->unplug_check_work, unplug_check_worker);
+
+ INIT_DELAYED_WORK(&ext_charger_vbat_low_task, ext_charger_vbat_low_handler);
+ INIT_DELAYED_WORK(&ext_charger_chgdone_task, ext_charger_chgdone_handler);
+ INIT_DELAYED_WORK(&ext_charger_temp_task, ext_charger_temp_handler);
+
+ ext_charger_wq = create_singlethread_workqueue("ext_charger_wq");
+
+ if (!ext_charger_wq) {
+ pr_err("Failed to create ext_charger_wq workqueue.");
+ goto free_chip;
+ }
+
+ rc = request_irqs(chip, pdev);
+ if (rc) {
+ pr_err("couldn't register interrupts rc=%d\n", rc);
+ goto free_chip;
+ }
+
+ enable_irq_wake(chip->pmic_chg_irq[USBIN_VALID_IRQ]);
+ enable_irq_wake(chip->pmic_chg_irq[DCIN_VALID_IRQ]);
+ enable_irq_wake(chip->pmic_chg_irq[VBATDET_LOW_IRQ]);
+ enable_irq_wake(chip->pmic_chg_irq[FASTCHG_IRQ]);
+ enable_irq_wake(chip->pmic_chg_irq[BATT_REMOVED_IRQ]);
+ if (!(chip->cool_temp_dc == INT_MIN && chip->warm_temp_dc == INT_MIN) &&
+ !flag_keep_charge_on && !flag_pa_recharge) {
+ rc = configure_btm(chip);
+ if (rc) {
+ pr_err("couldn't register with btm rc=%d\n", rc);
+ goto free_irq;
+ }
+ }
+
+ create_debugfs_entries(chip);
+
+ INIT_WORK(&chip->bms_notify.work, bms_notify);
+ INIT_WORK(&chip->battery_id_valid_work, battery_id_valid);
+
+
+ determine_initial_state(chip);
+
+ if (0) {
+ INIT_DELAYED_WORK(&chip->update_heartbeat_work,
+ update_heartbeat);
+ schedule_delayed_work(&chip->update_heartbeat_work,
+ round_jiffies_relative(msecs_to_jiffies
+ (chip->update_time)));
+ }
+ htc_charger_event_notify(HTC_CHARGER_EVENT_READY);
+ htc_gauge_event_notify(HTC_GAUGE_EVENT_READY);
+ if (ovp)
+ htc_charger_event_notify(HTC_CHARGER_EVENT_OVP);
+
+ return 0;
+
+free_irq:
+ free_irqs(chip);
+free_chip:
+ kfree(chip);
+ return rc;
+}
+
+static int __devexit pm8921_charger_remove(struct platform_device *pdev)
+{
+ struct pm8921_chg_chip *chip = platform_get_drvdata(pdev);
+
+ free_irqs(chip);
+ platform_set_drvdata(pdev, NULL);
+ the_chip = NULL;
+ kfree(chip);
+ return 0;
+}
+
+static struct platform_driver pm8921_charger_driver = {
+ .probe = pm8921_charger_probe,
+ .remove = __devexit_p(pm8921_charger_remove),
+ .driver = {
+ .name = PM8921_CHARGER_DEV_NAME,
+ .owner = THIS_MODULE,
+ .pm = &pm8921_charger_pm_ops,
+ },
+};
+
+static int __init pm8921_charger_init(void)
+{
+ test_power_monitor =
+ (get_kernel_flag() & KERNEL_FLAG_TEST_PWR_SUPPLY) ? 1 : 0;
+ flag_keep_charge_on =
+ (get_kernel_flag() & KERNEL_FLAG_KEEP_CHARG_ON) ? 1 : 0;
+ flag_pa_recharge =
+ (get_kernel_flag() & KERNEL_FLAG_PA_RECHARG_TEST) ? 1 : 0;
+ flag_disable_wakelock =
+ (get_kernel_flag() & KERNEL_FLAG_DISABLE_WAKELOCK) ? 1 : 0;
+ flag_enable_BMS_Charger_log =
+ (get_kernel_flag() & KERNEL_FLAG_ENABLE_BMS_CHARGER_LOG) ? 1 : 0;
+ return platform_driver_register(&pm8921_charger_driver);
+}
+
+static void __exit pm8921_charger_exit(void)
+{
+ platform_driver_unregister(&pm8921_charger_driver);
+}
+
+late_initcall(pm8921_charger_init);
+module_exit(pm8921_charger_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("PMIC8921 charger/battery driver");
+MODULE_VERSION("1.0");
+MODULE_ALIAS("platform:" PM8921_CHARGER_DEV_NAME);
diff --git a/include/linux/mfd/pm8xxx/pm8921-bms-htc.h b/include/linux/mfd/pm8xxx/pm8921-bms-htc.h
new file mode 100644
index 0000000..d38ecbe
--- /dev/null
+++ b/include/linux/mfd/pm8xxx/pm8921-bms-htc.h
@@ -0,0 +1,186 @@
+/* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __PM8XXX_BMS_H
+#define __PM8XXX_BMS_H
+
+#include <linux/errno.h>
+
+#define PM8921_BMS_DEV_NAME "pm8921-bms"
+
+#define FCC_CC_COLS 5
+#define FCC_TEMP_COLS 8
+
+#define PC_CC_ROWS 29
+#define PC_CC_COLS 13
+
+#define PC_TEMP_ROWS 29
+#define PC_TEMP_COLS 8
+
+#define MAX_SINGLE_LUT_COLS 20
+
+struct single_row_lut {
+ int x[MAX_SINGLE_LUT_COLS];
+ int y[MAX_SINGLE_LUT_COLS];
+ int cols;
+};
+
+struct sf_lut {
+ int rows;
+ int cols;
+ int row_entries[PC_CC_COLS];
+ int percent[PC_CC_ROWS];
+ int sf[PC_CC_ROWS][PC_CC_COLS];
+};
+
+struct pc_temp_ocv_lut {
+ int rows;
+ int cols;
+ int temp[PC_TEMP_COLS];
+ int percent[PC_TEMP_ROWS];
+ int ocv[PC_TEMP_ROWS][PC_TEMP_COLS];
+};
+
+struct pm8921_bms_battery_data {
+ unsigned int fcc;
+ struct single_row_lut *fcc_temp_lut;
+ struct single_row_lut *fcc_sf_lut;
+ struct pc_temp_ocv_lut *pc_temp_ocv_lut;
+ struct sf_lut *pc_sf_lut;
+ struct sf_lut *rbatt_sf_lut;
+ int default_rbatt_mohm;
+ int delta_rbatt_mohm;
+};
+
+struct pm8xxx_bms_core_data {
+ unsigned int batt_temp_channel;
+ unsigned int vbat_channel;
+ unsigned int ref625mv_channel;
+ unsigned int ref1p25v_channel;
+ unsigned int batt_id_channel;
+};
+
+enum battery_type {
+ BATT_UNKNOWN = 0,
+ BATT_PALLADIUM,
+ BATT_DESAY,
+};
+
+struct pm8921_bms_platform_data {
+ struct pm8xxx_bms_core_data bms_cdata;
+ enum battery_type battery_type;
+ unsigned int r_sense;
+ unsigned int i_test;
+ unsigned int v_failure;
+ unsigned int max_voltage_uv;
+ unsigned int rconn_mohm;
+ int enable_fcc_learning;
+};
+
+#if defined(CONFIG_PM8921_BMS) || defined(CONFIG_PM8921_BMS_MODULE)
+extern struct pm8921_bms_battery_data palladium_1500_data;
+extern struct pm8921_bms_battery_data desay_5200_data;
+int pm8921_bms_get_vsense_avg(int *result);
+
+int pm8921_bms_get_battery_current(int *result);
+
+int pm8921_bms_get_percent_charge(void);
+
+int pm8921_bms_get_fcc(void);
+
+int pm8921_bms_charging_began(void);
+void pm8921_bms_charging_end(int is_battery_full);
+
+void pm8921_bms_calibrate_hkadc(void);
+int pm8921_bms_stop_ocv_updates(void);
+int pm8921_bms_start_ocv_updates(void);
+int pm8921_bms_get_simultaneous_battery_voltage_and_current(int *ibat_ua,
+ int *vbat_uv);
+int pm8921_bms_get_rbatt(void);
+void pm8921_bms_invalidate_shutdown_soc(void);
+int pm8921_bms_dump_all(void);
+#ifdef CONFIG_HTC_BATT_8960
+int pm8921_bms_get_batt_current(int *result);
+
+int pm8921_bms_get_batt_soc(int *result);
+int pm8921_bms_get_batt_cc(int *result);
+int pm8921_bms_get_attr_text(char *buf, int size);
+#endif
+#else
+static inline int pm8921_bms_get_vsense_avg(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_bms_get_battery_current(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_bms_get_percent_charge(void)
+{
+ return -ENXIO;
+}
+static inline int pm8921_bms_get_fcc(void)
+{
+ return -ENXIO;
+}
+static inline void pm8921_bms_charging_began(void)
+{
+}
+static inline void pm8921_bms_charging_end(int is_battery_full)
+{
+}
+static inline void pm8921_bms_calibrate_hkadc(void)
+{
+}
+static inline void pm8921_bms_stop_ocv_updates(void)
+{
+}
+static inline void pm8921_bms_start_ocv_updates(void)
+{
+}
+static inline int pm8921_bms_get_simultaneous_battery_voltage_and_current(
+ int *ibat_ua, int *vbat_uv)
+{
+ return -ENXIO;
+}
+static inline int pm8921_bms_get_rbatt(void)
+{
+ return -EINVAL;
+}
+static inline void pm8921_bms_invalidate_shutdown_soc(void)
+{
+}
+static inline int pm8921_bms_dump_all(void)
+{
+ return -ENXIO;
+}
+#ifdef CONFIG_HTC_BATT_8960
+static inline int pm8921_bms_get_batt_current(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_bms_get_batt_soc(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_bms_get_batt_cc(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_bms_get_attr_text(char *buf, int size)
+{
+ return 0;
+}
+#endif
+#endif
+
+#endif
diff --git a/include/linux/mfd/pm8xxx/pm8921-charger-htc.h b/include/linux/mfd/pm8xxx/pm8921-charger-htc.h
new file mode 100644
index 0000000..f4151cb
--- /dev/null
+++ b/include/linux/mfd/pm8xxx/pm8921-charger-htc.h
@@ -0,0 +1,354 @@
+/* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __PM8XXX_CHARGER_H
+#define __PM8XXX_CHARGER_H
+
+#include <linux/errno.h>
+#include <linux/power_supply.h>
+#ifdef CONFIG_HTC_BATT_8960
+#include <mach/htc_charger.h>
+#endif
+
+#define PM8921_CHARGER_DEV_NAME "pm8921-charger"
+
+struct pm8xxx_charger_core_data {
+ unsigned int vbat_channel;
+ unsigned int batt_temp_channel;
+ unsigned int batt_id_channel;
+};
+
+enum pm8921_chg_cold_thr {
+ PM_SMBC_BATT_TEMP_COLD_THR__LOW,
+ PM_SMBC_BATT_TEMP_COLD_THR__HIGH
+};
+
+enum pm8921_chg_hot_thr {
+ PM_SMBC_BATT_TEMP_HOT_THR__LOW,
+ PM_SMBC_BATT_TEMP_HOT_THR__HIGH
+};
+
+enum pm8921_usb_ov_threshold {
+ PM_USB_OV_5P5V,
+ PM_USB_OV_6V,
+ PM_USB_OV_6P5V,
+ PM_USB_OV_7V,
+};
+
+enum pm8921_usb_debounce_time {
+ PM_USB_BYPASS_DEBOUNCER,
+ PM_USB_DEBOUNCE_20P5MS,
+ PM_USB_DEBOUNCE_40P5MS,
+ PM_USB_DEBOUNCE_80P5MS,
+};
+
+enum pm8921_chg_led_src_config {
+ LED_SRC_GND,
+ LED_SRC_VPH_PWR,
+ LED_SRC_5V,
+ LED_SRC_MIN_VPH_5V,
+ LED_SRC_BYPASS,
+};
+
+
+struct ext_usb_chg_pm8921 {
+ const char *name;
+ void *ctx;
+ int (*start_charging) (void *ctx);
+ int (*stop_charging) (void *ctx);
+ bool (*is_trickle) (void *ctx);
+ struct htc_charger *ichg;
+};
+
+
+struct pm8921_charger_platform_data {
+ struct pm8xxx_charger_core_data charger_cdata;
+ unsigned int safety_time;
+ unsigned int ttrkl_time;
+ unsigned int update_time;
+ unsigned int max_voltage;
+ unsigned int min_voltage;
+ unsigned int resume_voltage_delta;
+ unsigned int term_current;
+ int cool_temp;
+ int warm_temp;
+ unsigned int temp_check_period;
+ unsigned int max_bat_chg_current;
+ unsigned int cool_bat_chg_current;
+ unsigned int warm_bat_chg_current;
+ unsigned int cool_bat_voltage;
+ unsigned int warm_bat_voltage;
+ unsigned int (*get_batt_capacity_percent) (void);
+ int64_t batt_id_min;
+ int64_t batt_id_max;
+ bool keep_btm_on_suspend;
+ bool dc_unplug_check;
+ int trkl_voltage;
+ int weak_voltage;
+ int trkl_current;
+ int weak_current;
+ int vin_min;
+ int *thermal_mitigation;
+ int thermal_levels;
+ int mbat_in_gpio;
+ int is_embeded_batt;
+ enum pm8921_chg_cold_thr cold_thr;
+ enum pm8921_chg_hot_thr hot_thr;
+ int rconn_mohm;
+ enum pm8921_chg_led_src_config led_src_config;
+ struct ext_usb_chg_pm8921 *ext_usb;
+};
+
+enum pm8921_charger_source {
+ PM8921_CHG_SRC_NONE,
+ PM8921_CHG_SRC_USB,
+ PM8921_CHG_SRC_DC,
+};
+
+struct ext_chg_pm8921 {
+ const char *name;
+ void *ctx;
+ int (*start_charging) (void *ctx);
+ int (*stop_charging) (void *ctx);
+ bool (*is_trickle) (void *ctx);
+};
+
+#ifdef CONFIG_HTC_BATT_8960
+struct pm8921_charger_batt_param {
+ unsigned int max_voltage;
+ unsigned int cool_bat_voltage;
+ unsigned int warm_bat_voltage;
+};
+#endif
+
+#if defined(CONFIG_PM8921_CHARGER) || defined(CONFIG_PM8921_CHARGER_MODULE)
+void pm8921_charger_vbus_draw(unsigned int mA);
+int pm8921_charger_register_vbus_sn(void (*callback)(int));
+void pm8921_charger_unregister_vbus_sn(void (*callback)(int));
+int pm8921_charger_enable(bool enable);
+
+int pm8921_is_usb_chg_plugged_in(void);
+
+int pm8921_is_dc_chg_plugged_in(void);
+
+int pm8921_is_pwr_src_plugged_in(void);
+
+int pm8921_is_battery_present(void);
+
+int pm8921_set_max_battery_charge_current(int ma);
+
+int pm8921_disable_input_current_limit(bool disable);
+
+
+int pm8921_set_usb_power_supply_type(enum power_supply_type type);
+
+int pm8921_disable_source_current(bool disable);
+
+int pm8921_regulate_input_voltage(int voltage);
+bool pm8921_is_battery_charging(int *source);
+
+int pm8921_batt_temperature(void);
+int register_external_dc_charger(struct ext_chg_pm8921 *ext);
+
+void unregister_external_dc_charger(struct ext_chg_pm8921 *ext);
+
+int pm8921_usb_ovp_set_threshold(enum pm8921_usb_ov_threshold ov);
+
+int pm8921_usb_ovp_set_hystersis(enum pm8921_usb_debounce_time ms);
+
+int pm8921_usb_ovp_disable(int disable);
+
+#ifdef CONFIG_HTC_BATT_8960
+int pm8921_get_batt_voltage(int *result);
+
+int pm8921_get_batt_temperature(int *result);
+
+int pm8921_get_batt_id(int *result);
+
+int pm8921_is_batt_temperature_fault(int *result);
+
+int pm8921_is_batt_temp_fault_disable_chg(int *result);
+
+int pm8921_is_batt_full(int *result);
+
+int pm8921_get_charging_source(int *result);
+
+int pm8921_get_charging_enabled(int *result);
+
+int pm8921_pwrsrc_enable(bool enable);
+
+int pm8921_set_pwrsrc_and_charger_enable(enum htc_power_source_type src,
+ bool chg_enable, bool pwrsrc_enable);
+
+int pm8921_limit_charge_enable(bool enable);
+
+int pm8921_is_charger_ovp(int *result);
+
+int pm8921_dump_all(void);
+
+int pm8921_charger_get_attr_text(char *buf, int size);
+
+int pm8921_charger_get_attr_text_with_ext_charger(char *buf, int size);
+
+int pm8921_gauge_get_attr_text(char *buf, int size);
+#endif
+void pm8921_chg_disable_usbin_valid_irq(void);
+void pm8921_chg_enable_usbin_valid_irq(void);
+#else
+static inline void pm8921_charger_vbus_draw(unsigned int mA)
+{
+}
+static inline int pm8921_charger_register_vbus_sn(void (*callback)(int))
+{
+ return -ENXIO;
+}
+static inline void pm8921_charger_unregister_vbus_sn(void (*callback)(int))
+{
+}
+static inline int pm8921_charger_enable(bool enable)
+{
+ return -ENXIO;
+}
+static inline int pm8921_is_usb_chg_plugged_in(void)
+{
+ return -ENXIO;
+}
+static inline int pm8921_is_dc_chg_plugged_in(void)
+{
+ return -ENXIO;
+}
+static inline int pm8921_is_pwr_src_plugged_in(void)
+{
+ return -ENXIO;
+}
+static inline int pm8921_is_battery_present(void)
+{
+ return -ENXIO;
+}
+static inline int pm8921_disable_input_current_limit(bool disable)
+{
+ return -ENXIO;
+}
+static inline int pm8921_set_usb_power_supply_type(enum power_supply_type type)
+{
+ return -ENXIO;
+}
+static inline int pm8921_set_max_battery_charge_current(int ma)
+{
+ return -ENXIO;
+}
+static inline int pm8921_disable_source_current(bool disable)
+{
+ return -ENXIO;
+}
+static inline int pm8921_regulate_input_voltage(int voltage)
+{
+ return -ENXIO;
+}
+static inline bool pm8921_is_battery_charging(int *source)
+{
+ *source = PM8921_CHG_SRC_NONE;
+ return 0;
+}
+static inline int pm8921_batt_temperature(void)
+{
+ return -ENXIO;
+}
+static inline int register_external_dc_charger(struct ext_chg_pm8921 *ext)
+{
+ pr_err("%s.not implemented.\n", __func__);
+ return -ENODEV;
+}
+static inline void unregister_external_dc_charger(struct ext_chg_pm8921 *ext)
+{
+ pr_err("%s.not implemented.\n", __func__);
+}
+static inline int pm8921_usb_ovp_set_threshold(enum pm8921_usb_ov_threshold ov)
+{
+ return -ENXIO;
+}
+static inline int pm8921_usb_ovp_set_hystersis(enum pm8921_usb_debounce_time ms)
+{
+ return -ENXIO;
+}
+static inline int pm8921_usb_ovp_disable(int disable)
+{
+ return -ENXIO;
+}
+#ifdef CONFIG_HTC_BATT_8960
+static inline int pm8921_get_batt_voltage(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_get_batt_temperature(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_get_batt_id(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_is_batt_temperature_fault(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_is_batt_temp_fault_disable_chg(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_is_batt_full(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_get_charging_source(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_get_charging_enabled(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_pwrsrc_enable(bool enable)
+{
+ return -ENXIO;
+}
+static inline int pm8921_set_pwrsrc_and_charger_enable(enum htc_power_source_type src,
+ bool chg_enable, bool pwrsrc_enable)
+{
+ return -ENXIO;
+}
+static inline int pm8921_limit_charge_enable(bool enable)
+{
+ return -ENXIO;
+}
+static inline int pm8921_is_charger_ovp(int *result)
+{
+ return -ENXIO;
+}
+static inline int pm8921_charger_get_attr_text(char *buf, int size)
+{
+ return -ENXIO;
+}
+static inline int pm8921_gauge_get_attr_text(char *buf, int size)
+{
+ return -ENXIO;
+}
+#endif
+static inline void pm8921_chg_disable_usbin_valid_irq(void)
+{
+}
+static inline void pm8921_chg_enable_usbin_valid_irq(void)
+{
+}
+#endif
+
+#endif
diff --git a/include/linux/mfd/pm8xxx/pm8921.h b/include/linux/mfd/pm8xxx/pm8921.h
index aabbb21..d9710ca 100644
--- a/include/linux/mfd/pm8xxx/pm8921.h
+++ b/include/linux/mfd/pm8xxx/pm8921.h
@@ -29,10 +29,16 @@
#include <linux/input/pmic8xxx-pwrkey.h>
#include <linux/input/pmic8xxx-keypad.h>
#include <linux/regulator/pm8xxx-regulator.h>
-#include <linux/mfd/pm8xxx/pm8921-charger.h>
#include <linux/mfd/pm8xxx/pm8xxx-adc.h>
+#ifdef CONFIG_HTC_BATT_8960
+#include <linux/mfd/pm8xxx/pm8921-charger-htc.h>
+#include <linux/mfd/pm8xxx/pm8921-bms-htc.h>
+#include <linux/leds-pm8xxx-htc.h>
+#else
+#include <linux/mfd/pm8xxx/pm8921-charger.h>
#include <linux/mfd/pm8xxx/pm8921-bms.h>
#include <linux/leds-pm8xxx.h>
+#endif
#include <linux/mfd/pm8xxx/vibrator.h>
#include <linux/mfd/pm8xxx/ccadc.h>
diff --git a/include/linux/smb349.h b/include/linux/smb349.h
new file mode 100644
index 0000000..9189358
--- /dev/null
+++ b/include/linux/smb349.h
@@ -0,0 +1,377 @@
+/* Copyright (c) 2012 Code Aurora Forum. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful;
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+#ifndef __SMB349_H__
+#define __SMB349_H__
+
+#ifdef CONFIG_HTC_BATT_8960
+#include <mach/htc_charger.h>
+#endif
+
+#define SMB_CHG_CURR_REG 0x00
+#define CHG_OTHER_CURRENT_REG 0x01
+#define VAR_FUNC_REG 0x02
+#define FLOAT_VOLTAGE_REG 0x03
+#define CHG_CTRL_REG 0x04
+#define STAT_TIMER_REG 0x05
+#define PIN_ENABLE_CTRL_REG 0x06
+#define THERM_CTRL_A_REG 0x07
+#define SYSOK_USB3_SEL_REG 0x08
+#define CTRL_FUNC_REG 0x09
+#define OTG_TLIM_THERM_CNTRL_REG 0x0A
+#define LIMIT_CELL_TEMP_MONI_REG 0x0B
+#define FAULT_IRQ_REG 0x0C
+#define STATUS_IRQ_REG 0x0D
+#define SYSOK_REG 0x0E
+#define AUTO_INPUT_VOL_DET_REG 0x10
+#define I2C_BUS_REG 0x12
+#define CMD_A_REG 0x30
+#define CMD_B_REG 0x31
+#define CMD_C_REG 0x33
+#define IRQ_A_REG 0x35
+#define IRQ_B_REG 0x36
+#define IRQ_C_REG 0x37
+#define IRQ_D_REG 0x38
+#define IRQ_E_REG 0x39
+#define IRQ_F_REG 0x3A
+#define STATUS_A_REG 0x3B
+#define STATUS_B_REG 0x3C
+#define STATUS_C_REG 0x3D
+#define STATUS_D_REG 0x3E
+#define STATUS_E_REG 0x3F
+
+#define CHG_STATUS_MASK SMB349_MASK(2, 1)
+#define CHG_ENABLE_STATUS_BIT BIT(0)
+
+#define FAST_CHG_CURRENT_MASK SMB349_MASK(4, 4)
+
+
+#define SUSPEND_MODE_MASK SMB349_MASK(1, 2)
+
+#define CHARGING_ENABLE_MASK SMB349_MASK(1, 1)
+#define VOLIATILE_WRITE_PERMISSIOIN_MASK SMB349_MASK(1, 7)
+#define CURRENT_TERMINATION_MASK SMB349_MASK(1, 6)
+
+#define OTG_ENABLE_MASK SMB349_MASK(1, 4)
+#define AICL_MASK SMB349_MASK(1, 4)
+#define USBCS_MASK SMB349_MASK(1, 4)
+
+#define AC_INPUT_CURRENT_LIMIT_MASK SMB349_MASK(4, 0)
+#define DC_INPUT_CURRENT_LIMIT_MASK SMB349_MASK(4, 0)
+
+#define PRE_CHG_CURRENT_MASK SMB349_MASK(3, 5)
+
+#define USB_HC_MODE_MASK SMB349_MASK(1, 0)
+#define TERMINATION_CURRENT_MASK SMB349_MASK(3, 2)
+
+#define USB_1_5_MODE_MASK SMB349_MASK(1, 1)
+
+#define IS_SUSPEND_MODE_MASK SMB349_MASK(1, 7)
+
+#define OTG_CURRENT_MASK SMB349_MASK(2, 2)
+
+
+#define PIN_CONTROL_ACTIVE_MASK SMB349_MASK(2, 5)
+
+#define PRE_CHG_TO_FAST_CHG_THRESH_MASK SMB349_MASK(2, 6)
+#define SWITCH_FREQ_MASK SMB349_MASK(2, 6)
+#define OTG_I2C_PIN_MASK SMB349_MASK(2, 6)
+
+#define PRE_CHG_TO_FAST_CHG_ENABLE_MASK SMB349_MASK(1, 1)
+#define FLOAT_VOLTAGE_MASK SMB349_MASK(6, 0)
+
+
+#define SUSPEND_MODE_BIT BIT(2)
+#define CHG_ENABLE_BIT BIT(1)
+#define VOLATILE_W_PERM_BIT BIT(7)
+#define USB_SELECTION_BIT BIT(1)
+#define SYSTEM_FET_ENABLE_BIT BIT(7)
+#define AICL_COMPLETE_STATUS_BIT BIT(4)
+#define AUTOMATIC_INPUT_CURR_LIMIT_BIT BIT(4)
+#define I2C_CONTROL_CHARGER_BIT BIT(5)
+#define AUTOMATIC_POWER_SOURCE_DETECTION_BIT BIT(2)
+#define BATT_OV_END_CHG_BIT BIT(1)
+#define VCHG_FUNCTION BIT(0)
+#define USB_1_5_MODE BIT(1)
+#define USB_HC_MODE BIT(0)
+#define POWER_OK_STATUS BIT(0)
+#define USBCS_PIN_MODE BIT(4)
+#define USBCS_REGISTER_MODE 0
+#define CURR_TERM_END_CHG_BIT BIT(6)
+
+#define SMB349_HOT_TEMPERATURE_HARD_LIMIT_IRQ 7
+#define SMB349_HOT_TEMPERATURE_HARD_LIMIT_STATUS 6
+#define SMB349_COLD_TEMPERATURE_HARD_LIMIT_IRQ 5
+#define SMB349_COLD_TEMPERATURE_HARD_LIMIT_STATUS 4
+#define SMB349_HOT_TEMPERATURE_SOFT_LIMIT_IRQ 3
+#define SMB349_HOT_TEMPERATURE_SOFT_LIMIT_STATUS 2
+#define SMB349_COLD_TEMPERATURE_SOFT_LIMIT_IRQ 1
+#define SMB349_COLD_TEMPERATURE_SOFT_LIMIT_STATUS 0
+
+#define SMB349_BATTERY_OVER_VOLTAGE_CONDITION_IRQ 7
+#define SMB349_BATTERY_OVER_VOLTAGE_STATUS 6
+#define SMB349_MISSING_BATTER_IRQ 5
+#define SMB349_MISSING_BATTERY_STATUS 4
+#define SMB349_LOW_BATTERY_VOLTAGE_IRQ 3
+#define SMB349_LOW_BATTERY_VOLTAGE_STATUS 2
+#define SMB349_PRE_TO_FAST_CHARGE_BATTERY_VOLTAGE_IRQ 1
+#define SMB349_PRE_TO_FAST_CHARGE_BATTERY_VOLTAGE_STATUS 0
+
+#define SMB349_INTERNAL_TEMPERATURE_LIMIT_IRQ 7
+#define SMB349_INTERNAL_TEMPERATURE_LIMIT_STATUS 6
+#define SMB349_RE_CHARGE_BATTERY_THRESHOLD_IRQ 5
+#define SMB349_RE_CHARGE_BATTERY_THRESHOLD_STATUS 4
+#define SMB349_TAPER_CHARGING_MODE_IRQ 3
+#define SMB349_TAPER_CHARGING_MODE_STATUS 2
+#define SMB349_TERMINATION_CHARGING_CURRENT_HIT_IRQ 1
+#define SMB349_TERMINATION_CHARGING_CURRENT_HIT_STATUS 0
+
+#define SMB349_APSD_COMPLETED_IRQ 7
+#define SMB349_APSD_COMPLETED_STATUS 6
+#define SMB349_AICL_COMPLETE_IRQ 5
+#define SMB349_AICL_COMPLETE_STATUS 4
+#define SMB349_RESERVED_3 3
+#define SMB349_RESERVED_2 2
+#define SMB349_CHARGE_TIMEOUT_IRQ 1
+#define SMB349_CHARGE_TIMEOUT_STATUS 0
+
+
+#define SMB349_CIN_OVER_VOLTAGE_IRQ 7
+#define SMB349_DCIN_OVER_VOLTAGE_STATUS 6
+#define SMB349_DCIN_UNDER_VOLTAGE_IRQ 5
+#define SMB349_DCIN_UNDER_VOLTAGE_STATUS 4
+#define SMB349_AFVC_ACTIVE_IRQ 3
+#define SMB349_AFVC_ACTIVE_STATUS 2
+
+#define SMB349_OTG_OVER_CURRENT_LIMIT_IRQ 7
+#define SMB349_OTG_OVER_CURRENT_LIMIT_STATUS 6
+#define SMB349_OTG_BATTERY_UNDER_VOLTAGE_IRQ 5
+#define SMB349_OTG_BATTERY_UNDER_VOLTAGE_STATUS 4
+#define SMB349_OTG_DETECTION_IRQ 3
+#define SMB349_OTG_DETECTION_STATUS 2
+#define SMB349_POWER_OK_IRQ 1
+#define SMB349_POWER_OK_STATUS 0
+
+
+#define SMB349_FAST_CHG_MIN_MA 1000
+#define SMB349_FAST_CHG_STEP_MA 200
+#define SMB349_FAST_CHG_MAX_MA 4000
+#define SMB349_FAST_CHG_SHIFT 4
+#define SMB349_PRE_CHG_SHIFT 5
+
+#define SMB349_OTG_I2C_PIN_SHIFT 6
+
+#define SMB349_OTG_I2C_CONTROL 0x0
+#define SMB349_OTG_PIN_CONTROL 0x1
+
+#define SMB34X_OTG_CURR_LIMIT_SHIFT 2
+#define SMB349_SWITCH_FREQ_SHIFT 6
+
+#define SMB349_PIN_CONTROL_SHIFT 5
+#define SMB349_USBCS_REGISTER_CTRL 0
+#define SMB349_USBCS_PIN_CTRL 1
+
+#define SMB349_NO_CHARGING 0
+#define SMB349_PRE_CHARGING 1
+#define SMB349_FAST_CHARGING 2
+#define SMB349_TAPER_CHARGING 3
+
+
+
+#define SMB349_FLOAT_VOL_4000_MV 0x1B
+#define SMB349_FLOAT_VOL_4200_MV 0x25
+#define SMB349_FLOAT_VOL_4220_MV 0x26
+#define SMB349_FLOAT_VOL_4240_MV 0x27
+#define SMB349_FLOAT_VOL_4260_MV 0x28
+#define SMB349_FLOAT_VOL_4280_MV 0x29
+#define SMB349_FLOAT_VOL_4300_MV 0x2A
+#define SMB349_FLOAT_VOL_4320_MV 0x2B
+#define SMB349_FLOAT_VOL_4340_MV 0x2C
+#define SMB349_FLOAT_VOL_4350_MV 0x2D
+
+
+#define SMB_OTG_CURR_LIMIT_250MA 0x0
+#define SMB_OTG_CURR_LIMIT_500MA 0x1
+#define SMB_OTG_CURR_LIMIT_750MA 0x2
+#define SMB_OTG_CURR_LIMIT_1000MA 0x3
+
+
+#define SMB349_I2C_CONTROL_ACTIVE_HIGH 0x0
+#define SMB349_I2C_CONTROL_ACTIVE_LOW 0x1
+#define SMB349_PIN_CONTROL_ACTIVE_HIGH 0x2
+#define SMB349_PIN_CONTROL_ACTIVE_LOW 0x3
+
+#define AICL_RESULT_500MA 0x0
+#define AICL_RESULT_900MA 0x1
+#define AICL_RESULT_1000MA 0x2
+#define AICL_RESULT_1100MA 0x3
+#define AICL_RESULT_1200MA 0x4
+#define AICL_RESULT_1300MA 0x5
+#define AICL_RESULT_1500MA 0x6
+#define AICL_RESULT_1600MA 0x7
+#define AICL_RESULT_1700MA 0x8
+#define AICL_RESULT_1800MA 0x9
+#define AICL_RESULT_2000MA 0xa
+#define AICL_RESULT_2200MA 0xb
+#define AICL_RESULT_2400MA 0xc
+#define AICL_RESULT_2500MA 0xd
+#define AICL_RESULT_3000MA 0xe
+#define AICL_RESULT_3500MA 0xf
+
+#define SWITCH_FREQ_750KHZ 0x0
+#define SWITCH_FREQ_1MHZ 0x1
+#define SWITCH_FREQ_1D5MHZ 0x2
+#define SWITCH_FREQ_3MHZ 0x3
+
+#define SMB349_USB_MODE 0
+#define SMB349_HC_MODE 1
+
+#define FAST_CHARGE_500MA 0x0
+#define FAST_CHARGE_600MA 0x1
+#define FAST_CHARGE_700MA 0x2
+#define FAST_CHARGE_800MA 0x3
+#define FAST_CHARGE_900MA 0x4
+#define FAST_CHARGE_1000MA 0x5
+#define FAST_CHARGE_1100MA 0x6
+#define FAST_CHARGE_1200MA 0x7
+#define FAST_CHARGE_1300MA 0x8
+#define FAST_CHARGE_1400MA 0x9
+#define FAST_CHARGE_1500MA 0xa
+#define FAST_CHARGE_1600MA 0xb
+#define FAST_CHARGE_1700MA 0xc
+#define FAST_CHARGE_1800MA 0xd
+#define FAST_CHARGE_1900MA 0xe
+#define FAST_CHARGE_2000MA 0xf
+
+
+#define SMB340_FASTCHG_1000MA 0x0
+#define SMB340_FASTCHG_1200MA 0x1
+#define SMB340_FASTCHG_1400MA 0x2
+#define SMB340_FASTCHG_1600MA 0x3
+#define SMB340_FASTCHG_1800MA 0x4
+#define SMB340_FASTCHG_2000MA 0x5
+#define SMB340_FASTCHG_2200MA 0x6
+#define SMB340_FASTCHG_2400MA 0x7
+#define SMB340_FASTCHG_2600MA 0x8
+#define SMB340_FASTCHG_2800MA 0x9
+#define SMB340_FASTCHG_3000MA 0xa
+#define SMB340_FASTCHG_3200MA 0xb
+#define SMB340_FASTCHG_3400MA 0xc
+#define SMB340_FASTCHG_3600MA 0xd
+#define SMB340_FASTCHG_3800MA 0xe
+#define SMB340_FASTCHG_4000MA 0xf
+
+
+
+#define DC_INPUT_500MA 0x0
+#define DC_INPUT_900MA 0x1
+#define DC_INPUT_1000MA 0x2
+#define DC_INPUT_1100MA 0x3
+#define DC_INPUT_1200MA 0x4
+#define DC_INPUT_1300MA 0x5
+#define DC_INPUT_1500MA 0x6
+#define DC_INPUT_1600MA 0x7
+#define DC_INPUT_1700MA 0x8
+#define DC_INPUT_1800MA 0x9
+#define DC_INPUT_2000MA 0xa
+#define DC_INPUT_2200MA 0xb
+#define DC_INPUT_2400MA 0xc
+#define DC_INPUT_2500MA 0xd
+#define DC_INPUT_3000MA 0xe
+#define DC_INPUT_3500MA 0xf
+
+#define PRECHG_CURR_100MA 0x0
+#define PRECHG_CURR_150MA 0x1
+#define PRECHG_CURR_200MA 0x2
+#define PRECHG_CURR_250MA 0x3
+#define PRECHG_CURR_300MA 0x4
+#define PRECHG_CURR_350MA 0x5
+#define PRECHG_CURR_50MA 0x6
+
+#define SMB340_PRECHG_CURR_200MA 0x0
+#define SMB340_PRECHG_CURR_300MA 0x1
+#define SMB340_PRECHG_CURR_400MA 0x2
+#define SMB340_PRECHG_CURR_500MA 0x3
+#define SMB340_PRECHG_CURR_600MA 0x4
+#define SMB340_PRECHG_CURR_700MA 0x5
+#define SMB340_PRECHG_CURR_100MA 0x6
+
+
+#define SMB_349 1
+#define SMB_340 2
+
+enum smb349_thermal_state {
+ STATE_HI_V_SCRN_ON = 1,
+ STATE_LO_V_SCRN_ON,
+ STATE_HI_V_SCRN_OFF,
+ STATE_LO_V_SCRN_OFF,
+};
+
+struct smb349_chg_int_notifier {
+ struct list_head notifier_link;
+ const char *name;
+ void (*func)(int int_reg, int value);
+};
+
+struct smb349_platform_data {
+ int chg_susp_gpio;
+ int chg_current_ma;
+ int chip_rev;
+#ifdef CONFIG_SUPPORT_DQ_BATTERY
+ int dq_result;
+#endif
+ int aicl_result_threshold;
+ int dc_input_max;
+};
+
+struct smb349_charger_batt_param {
+ int max_voltage;
+ int cool_bat_voltage;
+};
+int smb349_set_AICL_mode(unsigned int enable);
+int smb349_allow_fast_charging_setting(void);
+int smb349_allow_volatile_wrtting(void);
+int smb349_enable_charging(bool enable);
+int smb349_eoc_notify(enum htc_extchg_event_type main_event);
+int smb349_event_notify(enum htc_extchg_event_type extchg_event);
+int smb349_temp_notify(enum htc_extchg_event_type main_event);
+int smb349_enable_5v_output(bool mhl_in);
+int smb349_config(void);
+void smb349_dbg(void);
+int smb349_dump_reg(u8 reg);
+void smb349_partial_reg_dump(void);
+int smb349_dump_all(void);
+int smb349_is_AICL_complete(void);
+int smb349_is_AICL_enabled(void);
+int smb349_is_charger_bit_low_active(void);
+int smb349_is_charger_error(void);
+int smb349_reset_max_chg_vol(enum htc_extchg_event_type main_event);
+int smb349_is_charging_enabled(void);
+int smb349_is_batt_temp_fault_disable_chg(int *result);
+int smb349_get_i2c_slave_id(void);
+int smb349_is_hc_mode(void);
+int smb349_is_usbcs_register_mode(void);
+int smb349_masked_write(int reg, u8 mask, u8 val);
+int smb349_not_allow_charging_cycle_end(void);
+int smb349_enable_pwrsrc(bool enable);
+int smb349_set_pwrsrc_and_charger_enable(enum htc_power_source_type src, bool chg_enable, bool pwrsrc_enable);
+int smb349_set_hc_mode(unsigned int enable);
+int smb349_switch_usbcs_mode(int mode);
+int smb349_limit_charge_enable(bool enable);
+int smb349_get_charging_src(int *result);
+int smb349_get_charging_enabled(int *result);
+int smb349_is_charger_overvoltage(int* result);
+int smb349_charger_get_attr_text(char *buf, int size);
+int smb349_start_charging(void *ctx);
+int smb349_stop_charging(void *ctx);
+bool smb349_is_trickle_charging(void *ctx);
+#endif