Initial Contribution
msm-2.6.38: tag AU_LINUX_ANDROID_GINGERBREAD.02.03.04.00.142
Signed-off-by: Bryan Huntsman <bryanh@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-sapphire-mmc.c b/arch/arm/mach-msm/board-sapphire-mmc.c
new file mode 100755
index 0000000..a8a7963
--- /dev/null
+++ b/arch/arm/mach-msm/board-sapphire-mmc.c
@@ -0,0 +1,486 @@
+/* linux/arch/arm/mach-msm/board-sapphire-mmc.c
+ * Copyright (C) 2007-2009 HTC Corporation.
+ * Author: Thomas Tsai <thomas_tsai@htc.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+*/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/err.h>
+#include <linux/debugfs.h>
+
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <asm/mach-types.h>
+
+#include <mach/vreg.h>
+#include <mach/htc_pwrsink.h>
+
+#include <asm/mach/mmc.h>
+
+#include "devices.h"
+#include "gpio_chip.h"
+#include "board-sapphire.h"
+#include "proc_comm.h"
+
+#define DEBUG_SDSLOT_VDD 0
+
+extern int msm_add_sdcc(unsigned int controller, struct mmc_platform_data *plat,
+ unsigned int stat_irq, unsigned long stat_irq_flags);
+
+/* ---- COMMON ---- */
+static void config_gpio_table(uint32_t *table, int len)
+{
+ int n;
+ unsigned id;
+ for (n = 0; n < len; n++) {
+ id = table[n];
+ msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &id, 0);
+ }
+}
+
+/* ---- SDCARD ---- */
+
+static uint32_t sdcard_on_gpio_table[] = {
+ PCOM_GPIO_CFG(62, 2, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA), /* CLK */
+ PCOM_GPIO_CFG(63, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* CMD */
+ PCOM_GPIO_CFG(64, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* DAT3 */
+ PCOM_GPIO_CFG(65, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* DAT2 */
+ PCOM_GPIO_CFG(66, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT1 */
+ PCOM_GPIO_CFG(67, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT0 */
+};
+
+static uint32_t sdcard_off_gpio_table[] = {
+ PCOM_GPIO_CFG(62, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CLK */
+ PCOM_GPIO_CFG(63, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CMD */
+ PCOM_GPIO_CFG(64, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT3 */
+ PCOM_GPIO_CFG(65, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT2 */
+ PCOM_GPIO_CFG(66, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT1 */
+ PCOM_GPIO_CFG(67, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT0 */
+};
+
+static uint opt_disable_sdcard;
+
+static int __init sapphire_disablesdcard_setup(char *str)
+{
+ int cal = simple_strtol(str, NULL, 0);
+
+ opt_disable_sdcard = cal;
+ return 1;
+}
+
+__setup("board_sapphire.disable_sdcard=", sapphire_disablesdcard_setup);
+
+static struct vreg *vreg_sdslot; /* SD slot power */
+
+struct mmc_vdd_xlat {
+ int mask;
+ int level;
+};
+
+static struct mmc_vdd_xlat mmc_vdd_table[] = {
+ { MMC_VDD_165_195, 1800 },
+ { MMC_VDD_20_21, 2050 },
+ { MMC_VDD_21_22, 2150 },
+ { MMC_VDD_22_23, 2250 },
+ { MMC_VDD_23_24, 2350 },
+ { MMC_VDD_24_25, 2450 },
+ { MMC_VDD_25_26, 2550 },
+ { MMC_VDD_26_27, 2650 },
+ { MMC_VDD_27_28, 2750 },
+ { MMC_VDD_28_29, 2850 },
+ { MMC_VDD_29_30, 2950 },
+};
+
+static unsigned int sdslot_vdd = 0xffffffff;
+static unsigned int sdslot_vreg_enabled;
+
+static uint32_t sapphire_sdslot_switchvdd(struct device *dev, unsigned int vdd)
+{
+ int i, rc;
+
+ BUG_ON(!vreg_sdslot);
+
+ if (vdd == sdslot_vdd)
+ return 0;
+
+ sdslot_vdd = vdd;
+
+ if (vdd == 0) {
+#if DEBUG_SDSLOT_VDD
+ printk(KERN_DEBUG "%s: Disabling SD slot power\n", __func__);
+#endif
+ config_gpio_table(sdcard_off_gpio_table,
+ ARRAY_SIZE(sdcard_off_gpio_table));
+ vreg_disable(vreg_sdslot);
+ sdslot_vreg_enabled = 0;
+ return 0;
+ }
+
+ if (!sdslot_vreg_enabled) {
+ rc = vreg_enable(vreg_sdslot);
+ if (rc) {
+ printk(KERN_ERR "%s: Error enabling vreg (%d)\n",
+ __func__, rc);
+ }
+ config_gpio_table(sdcard_on_gpio_table,
+ ARRAY_SIZE(sdcard_on_gpio_table));
+ sdslot_vreg_enabled = 1;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(mmc_vdd_table); i++) {
+ if (mmc_vdd_table[i].mask == (1 << vdd)) {
+#if DEBUG_SDSLOT_VDD
+ printk(KERN_DEBUG "%s: Setting level to %u\n",
+ __func__, mmc_vdd_table[i].level);
+#endif
+ rc = vreg_set_level(vreg_sdslot,
+ mmc_vdd_table[i].level);
+ if (rc) {
+ printk(KERN_ERR
+ "%s: Error setting vreg level (%d)\n",
+ __func__, rc);
+ }
+ return 0;
+ }
+ }
+
+ printk(KERN_ERR "%s: Invalid VDD %d specified\n", __func__, vdd);
+ return 0;
+}
+
+static unsigned int sapphire_sdslot_status(struct device *dev)
+{
+ unsigned int status;
+
+ status = (unsigned int) gpio_get_value(SAPPHIRE_GPIO_SDMC_CD_N);
+ return !status;
+}
+
+#define SAPPHIRE_MMC_VDD (MMC_VDD_165_195 | MMC_VDD_20_21 | MMC_VDD_21_22 \
+ | MMC_VDD_22_23 | MMC_VDD_23_24 | MMC_VDD_24_25 \
+ | MMC_VDD_25_26 | MMC_VDD_26_27 | MMC_VDD_27_28 \
+ | MMC_VDD_28_29 | MMC_VDD_29_30)
+
+static struct mmc_platform_data sapphire_sdslot_data = {
+ .ocr_mask = SAPPHIRE_MMC_VDD,
+ .status = sapphire_sdslot_status,
+ .translate_vdd = sapphire_sdslot_switchvdd,
+};
+
+/* ---- WIFI ---- */
+
+static uint32_t wifi_on_gpio_table[] = {
+ PCOM_GPIO_CFG(51, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT3 */
+ PCOM_GPIO_CFG(52, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT2 */
+ PCOM_GPIO_CFG(53, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT1 */
+ PCOM_GPIO_CFG(54, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT0 */
+ PCOM_GPIO_CFG(55, 1, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* CMD */
+ PCOM_GPIO_CFG(56, 1, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA), /* CLK */
+ PCOM_GPIO_CFG(29, 0, GPIO_INPUT, GPIO_NO_PULL, GPIO_4MA), /* WLAN IRQ */
+};
+
+static uint32_t wifi_off_gpio_table[] = {
+ PCOM_GPIO_CFG(51, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT3 */
+ PCOM_GPIO_CFG(52, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT2 */
+ PCOM_GPIO_CFG(53, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT1 */
+ PCOM_GPIO_CFG(54, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT0 */
+ PCOM_GPIO_CFG(55, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CMD */
+ PCOM_GPIO_CFG(56, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CLK */
+ PCOM_GPIO_CFG(29, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* WLAN IRQ */
+};
+
+static struct vreg *vreg_wifi_osc; /* WIFI 32khz oscilator */
+static int sapphire_wifi_cd = 0; /* WIFI virtual 'card detect' status */
+
+static struct sdio_embedded_func wifi_func = {
+ .f_class = SDIO_CLASS_WLAN,
+ .f_maxblksize = 512,
+};
+
+static struct embedded_sdio_data sapphire_wifi_emb_data = {
+ .cis = {
+ .vendor = 0x104c,
+ .device = 0x9066,
+ .blksize = 512,
+ .max_dtr = 20000000,
+ },
+ .cccr = {
+ .multi_block = 0,
+ .low_speed = 0,
+ .wide_bus = 1,
+ .high_power = 0,
+ .high_speed = 0,
+ },
+ .funcs = &wifi_func,
+ .num_funcs = 1,
+};
+
+static void (*wifi_status_cb)(int card_present, void *dev_id);
+static void *wifi_status_cb_devid;
+
+static int sapphire_wifi_status_register(void (*callback)(int card_present,
+ void *dev_id),
+ void *dev_id)
+{
+ if (wifi_status_cb)
+ return -EAGAIN;
+ wifi_status_cb = callback;
+ wifi_status_cb_devid = dev_id;
+ return 0;
+}
+
+static unsigned int sapphire_wifi_status(struct device *dev)
+{
+ return sapphire_wifi_cd;
+}
+
+int sapphire_wifi_set_carddetect(int val)
+{
+ printk(KERN_DEBUG "%s: %d\n", __func__, val);
+ sapphire_wifi_cd = val;
+ if (wifi_status_cb)
+ wifi_status_cb(val, wifi_status_cb_devid);
+ else
+ printk(KERN_WARNING "%s: Nobody to notify\n", __func__);
+ return 0;
+}
+#ifndef CONFIG_WIFI_CONTROL_FUNC
+EXPORT_SYMBOL(sapphire_wifi_set_carddetect);
+#endif
+
+int sapphire_wifi_power_state=0;
+int sapphire_bt_power_state=0;
+
+int sapphire_wifi_power(int on)
+{
+ int rc;
+
+ printk(KERN_DEBUG "%s: %d\n", __func__, on);
+
+ if (on) {
+ config_gpio_table(wifi_on_gpio_table,
+ ARRAY_SIZE(wifi_on_gpio_table));
+ rc = vreg_enable(vreg_wifi_osc);
+ if (rc)
+ return rc;
+ htc_pwrsink_set(PWRSINK_WIFI, 70);
+ } else {
+ config_gpio_table(wifi_off_gpio_table,
+ ARRAY_SIZE(wifi_off_gpio_table));
+ htc_pwrsink_set(PWRSINK_WIFI, 0);
+ }
+ gpio_set_value(SAPPHIRE_GPIO_MAC_32K_EN, on);
+ mdelay(100);
+ gpio_set_value(SAPPHIRE_GPIO_WIFI_EN, on);
+ mdelay(100);
+ if (!on) {
+ if(!sapphire_bt_power_state)
+ {
+ vreg_disable(vreg_wifi_osc);
+ printk("WiFi disable vreg_wifi_osc.\n");
+ }
+ else
+ printk("WiFi shouldn't disable vreg_wifi_osc. BT is using it!!\n");
+ }
+ sapphire_wifi_power_state = on;
+ return 0;
+}
+#ifndef CONFIG_WIFI_CONTROL_FUNC
+EXPORT_SYMBOL(sapphire_wifi_power);
+#endif
+
+/* Eenable VREG_MMC pin to turn on fastclock oscillator : colin */
+int sapphire_bt_fastclock_power(int on)
+{
+ int rc;
+
+ printk(KERN_DEBUG "sapphire_bt_fastclock_power on = %d\n", on);
+ if (vreg_wifi_osc) {
+ if (on) {
+ rc = vreg_enable(vreg_wifi_osc);
+ printk(KERN_DEBUG "BT vreg_enable vreg_mmc, rc=%d\n",
+ rc);
+ if (rc) {
+ printk("Error turn sapphire_bt_fastclock_power rc=%d\n", rc);
+ return rc;
+ }
+ } else {
+ if (!sapphire_wifi_power_state) {
+ vreg_disable(vreg_wifi_osc);
+ printk(KERN_DEBUG "BT disable vreg_wifi_osc.\n");
+ } else
+ printk(KERN_DEBUG "BT shouldn't disable vreg_wifi_osc. WiFi is using it!!\n");
+ }
+ }
+ sapphire_bt_power_state = on;
+ return 0;
+}
+EXPORT_SYMBOL(sapphire_bt_fastclock_power);
+
+static int sapphire_wifi_reset_state;
+void sapphire_wifi_reset(int on)
+{
+ printk(KERN_DEBUG "%s: %d\n", __func__, on);
+ gpio_set_value(SAPPHIRE_GPIO_WIFI_PA_RESETX, !on);
+ sapphire_wifi_reset_state = on;
+ mdelay(50);
+}
+#ifndef CONFIG_WIFI_CONTROL_FUNC
+EXPORT_SYMBOL(sapphire_wifi_reset);
+#endif
+
+static struct mmc_platform_data sapphire_wifi_data = {
+ .ocr_mask = MMC_VDD_28_29,
+ .status = sapphire_wifi_status,
+ .register_status_notify = sapphire_wifi_status_register,
+ .embedded_sdio = &sapphire_wifi_emb_data,
+};
+
+int __init sapphire_init_mmc(unsigned int sys_rev)
+{
+ wifi_status_cb = NULL;
+
+ sdslot_vreg_enabled = 0;
+
+ vreg_sdslot = vreg_get(0, "gp6");
+ if (IS_ERR(vreg_sdslot))
+ return PTR_ERR(vreg_sdslot);
+ vreg_wifi_osc = vreg_get(0, "mmc");
+ if (IS_ERR(vreg_wifi_osc))
+ return PTR_ERR(vreg_wifi_osc);
+
+ set_irq_wake(SAPPHIRE_GPIO_TO_INT(SAPPHIRE_GPIO_SDMC_CD_N), 1);
+
+ msm_add_sdcc(1, &sapphire_wifi_data, 0, 0);
+
+ if (!opt_disable_sdcard)
+ msm_add_sdcc(2, &sapphire_sdslot_data,
+ SAPPHIRE_GPIO_TO_INT(SAPPHIRE_GPIO_SDMC_CD_N), 0);
+ else
+ printk(KERN_INFO "sapphire: SD-Card interface disabled\n");
+ return 0;
+}
+
+#if defined(CONFIG_DEBUG_FS)
+static int sapphiremmc_dbg_wifi_reset_set(void *data, u64 val)
+{
+ sapphire_wifi_reset((int) val);
+ return 0;
+}
+
+static int sapphiremmc_dbg_wifi_reset_get(void *data, u64 *val)
+{
+ *val = sapphire_wifi_reset_state;
+ return 0;
+}
+
+static int sapphiremmc_dbg_wifi_cd_set(void *data, u64 val)
+{
+ sapphire_wifi_set_carddetect((int) val);
+ return 0;
+}
+
+static int sapphiremmc_dbg_wifi_cd_get(void *data, u64 *val)
+{
+ *val = sapphire_wifi_cd;
+ return 0;
+}
+
+static int sapphiremmc_dbg_wifi_pwr_set(void *data, u64 val)
+{
+ sapphire_wifi_power((int) val);
+ return 0;
+}
+
+static int sapphiremmc_dbg_wifi_pwr_get(void *data, u64 *val)
+{
+
+ *val = sapphire_wifi_power_state;
+ return 0;
+}
+
+static int sapphiremmc_dbg_sd_pwr_set(void *data, u64 val)
+{
+ sapphire_sdslot_switchvdd(NULL, (unsigned int) val);
+ return 0;
+}
+
+static int sapphiremmc_dbg_sd_pwr_get(void *data, u64 *val)
+{
+ *val = sdslot_vdd;
+ return 0;
+}
+
+static int sapphiremmc_dbg_sd_cd_set(void *data, u64 val)
+{
+ return -ENOSYS;
+}
+
+static int sapphiremmc_dbg_sd_cd_get(void *data, u64 *val)
+{
+ *val = sapphire_sdslot_status(NULL);
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(sapphiremmc_dbg_wifi_reset_fops,
+ sapphiremmc_dbg_wifi_reset_get,
+ sapphiremmc_dbg_wifi_reset_set, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(sapphiremmc_dbg_wifi_cd_fops,
+ sapphiremmc_dbg_wifi_cd_get,
+ sapphiremmc_dbg_wifi_cd_set, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(sapphiremmc_dbg_wifi_pwr_fops,
+ sapphiremmc_dbg_wifi_pwr_get,
+ sapphiremmc_dbg_wifi_pwr_set, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(sapphiremmc_dbg_sd_pwr_fops,
+ sapphiremmc_dbg_sd_pwr_get,
+ sapphiremmc_dbg_sd_pwr_set, "%llu\n");
+
+DEFINE_SIMPLE_ATTRIBUTE(sapphiremmc_dbg_sd_cd_fops,
+ sapphiremmc_dbg_sd_cd_get,
+ sapphiremmc_dbg_sd_cd_set, "%llu\n");
+
+static int __init sapphiremmc_dbg_init(void)
+{
+ struct dentry *dent;
+
+ if (!machine_is_sapphire())
+ return 0;
+
+ dent = debugfs_create_dir("sapphiremmc_dbg", 0);
+ if (IS_ERR(dent))
+ return PTR_ERR(dent);
+
+ debugfs_create_file("wifi_reset", 0644, dent, NULL,
+ &sapphiremmc_dbg_wifi_reset_fops);
+ debugfs_create_file("wifi_cd", 0644, dent, NULL,
+ &sapphiremmc_dbg_wifi_cd_fops);
+ debugfs_create_file("wifi_pwr", 0644, dent, NULL,
+ &sapphiremmc_dbg_wifi_pwr_fops);
+
+ debugfs_create_file("sd_pwr", 0644, dent, NULL,
+ &sapphiremmc_dbg_sd_pwr_fops);
+ debugfs_create_file("sd_cd", 0644, dent, NULL,
+ &sapphiremmc_dbg_sd_cd_fops);
+
+ return 0;
+}
+
+device_initcall(sapphiremmc_dbg_init);
+
+#endif