mako: nfc: add new nfc broadcom driver
Change-Id: I3b06a3c77c8d935798fcbdb627a7fca983503d08
diff --git a/arch/arm/configs/mako_defconfig b/arch/arm/configs/mako_defconfig
index 9576e4a..607ff65 100644
--- a/arch/arm/configs/mako_defconfig
+++ b/arch/arm/configs/mako_defconfig
@@ -240,6 +240,7 @@
CONFIG_CFG80211=y
# CONFIG_CFG80211_WEXT is not set
CONFIG_RFKILL=y
+CONFIG_BCM2079X=y
CONFIG_GENLOCK=y
CONFIG_GENLOCK_MISCDEVICE=y
CONFIG_CONNECTOR=y
diff --git a/arch/arm/mach-msm/lge/mako/board-mako-gpiomux.c b/arch/arm/mach-msm/lge/mako/board-mako-gpiomux.c
index cf3cc3a..376cba8 100644
--- a/arch/arm/mach-msm/lge/mako/board-mako-gpiomux.c
+++ b/arch/arm/mach-msm/lge/mako/board-mako-gpiomux.c
@@ -765,6 +765,48 @@
};
#endif
+static struct gpiomux_setting nfc_bcm2079x_ven_cfg = { // NFC_WAKE
+ .func = GPIOMUX_FUNC_GPIO,
+ .drv = GPIOMUX_DRV_2MA,
+ .pull = GPIOMUX_PULL_NONE,
+ .dir = GPIOMUX_OUT_LOW,
+};
+
+static struct gpiomux_setting nfc_bcm2079x_irq_cfg = { // NFC_IRQ
+ .func = GPIOMUX_FUNC_GPIO,
+ .drv = GPIOMUX_DRV_2MA,
+ .pull = GPIOMUX_PULL_DOWN, // BCM2079X should be PULL_NONE? MDM to confirm.
+ .dir = GPIOMUX_IN,
+};
+
+static struct gpiomux_setting nfc_bcm2079x_firm_cfg = { // REG_PU
+ .func = GPIOMUX_FUNC_GPIO,
+ .drv = GPIOMUX_DRV_2MA,
+ .pull = GPIOMUX_PULL_NONE,
+ .dir = GPIOMUX_OUT_LOW,
+};
+
+static struct msm_gpiomux_config apq8064_bcm2079x_nfc_configs[] __initdata = {
+ {
+ .gpio = 37,
+ .settings = {
+ [GPIOMUX_SUSPENDED] = &nfc_bcm2079x_firm_cfg,
+ },
+ },
+ {
+ .gpio = 29,
+ .settings = {
+ [GPIOMUX_SUSPENDED] = &nfc_bcm2079x_irq_cfg,
+ },
+ },
+ {
+ .gpio = 55,
+ .settings = {
+ [GPIOMUX_SUSPENDED] = &nfc_bcm2079x_ven_cfg,
+ },
+ },
+};
+
void __init apq8064_init_gpiomux(void)
{
int rc;
@@ -809,6 +851,9 @@
ARRAY_SIZE(apq8064_nfc_configs));
#endif
+ msm_gpiomux_install(apq8064_bcm2079x_nfc_configs,
+ ARRAY_SIZE(apq8064_bcm2079x_nfc_configs));
+
msm_gpiomux_install(apq8064_hdmi_configs,
ARRAY_SIZE(apq8064_hdmi_configs));
}
diff --git a/arch/arm/mach-msm/lge/mako/board-mako-nfc.c b/arch/arm/mach-msm/lge/mako/board-mako-nfc.c
index ecccae3..e0a4c20 100644
--- a/arch/arm/mach-msm/lge/mako/board-mako-nfc.c
+++ b/arch/arm/mach-msm/lge/mako/board-mako-nfc.c
@@ -68,3 +68,36 @@
lge_add_i2c_nfc_devices();
}
#endif
+
+#include <linux/nfc/bcm2079x.h>
+
+#define NFC_GPIO_VEN 55
+#define NFC_GPIO_IRQ 29
+#define NFC_GPIO_FIRM 37
+
+static struct bcm2079x_platform_data bcm2079x_pdata = {
+ .irq_gpio = NFC_GPIO_IRQ,
+ .en_gpio = NFC_GPIO_VEN,
+ .wake_gpio= NFC_GPIO_FIRM,
+};
+
+static struct i2c_board_info i2c_bcm2079x[] __initdata = {
+ {
+ I2C_BOARD_INFO("bcm2079x-i2c", 0x1FA),
+ .flags = I2C_CLIENT_TEN,
+ .irq = MSM_GPIO_TO_INT(NFC_GPIO_IRQ),
+ .platform_data = &bcm2079x_pdata,
+ },
+};
+
+static void __init lge_add_i2c_bcm2079x_device(void)
+{
+ i2c_register_board_info(APQ_8064_GSBI1_QUP_I2C_BUS_ID,
+ i2c_bcm2079x,
+ ARRAY_SIZE(i2c_bcm2079x));
+}
+
+void __init lge_add_bcm2079x_device(void)
+{
+ lge_add_i2c_bcm2079x_device();
+}
diff --git a/arch/arm/mach-msm/lge/mako/board-mako.c b/arch/arm/mach-msm/lge/mako/board-mako.c
index 9778fe8..1ebfbd3 100644
--- a/arch/arm/mach-msm/lge/mako/board-mako.c
+++ b/arch/arm/mach-msm/lge/mako/board-mako.c
@@ -2077,6 +2077,7 @@
#if defined(CONFIG_LGE_NFC_PN544)
lge_add_nfc_devices();
#endif
+ lge_add_bcm2079x_device();
lge_add_persistent_ram();
lge_add_ramconsole_devices();
lge_add_panic_handler_devices();
diff --git a/arch/arm/mach-msm/lge/mako/board-mako.h b/arch/arm/mach-msm/lge/mako/board-mako.h
index 31dcdfd..8d132d6 100644
--- a/arch/arm/mach-msm/lge/mako/board-mako.h
+++ b/arch/arm/mach-msm/lge/mako/board-mako.h
@@ -70,6 +70,7 @@
struct mmc_platform_data *plat);
extern void __init lge_add_sound_devices(void);
extern void __init lge_add_backlight_devices(void);
+void __init lge_add_bcm2079x_device(void);
void apq8064_init_mmc(void);
void apq8064_init_gpiomux(void);
void apq8064_init_pmic(void);
diff --git a/drivers/nfc/Kconfig b/drivers/nfc/Kconfig
index 5af95927..8fd48d4 100644
--- a/drivers/nfc/Kconfig
+++ b/drivers/nfc/Kconfig
@@ -39,3 +39,10 @@
into the kernel or say M to compile it as module.
endmenu
+
+config BCM2079X
+ bool "Broadcom 2079X NFC Controller Driver"
+ depends on I2C
+ select CRC_CCITT
+ help
+ Broadcom 2079X Near Field Communication controller support.
diff --git a/drivers/nfc/Makefile b/drivers/nfc/Makefile
index ab99e85..c05b26b 100644
--- a/drivers/nfc/Makefile
+++ b/drivers/nfc/Makefile
@@ -5,5 +5,6 @@
obj-$(CONFIG_PN544_NFC) += pn544.o
obj-$(CONFIG_NFC_PN533) += pn533.o
obj-$(CONFIG_NFC_WILINK) += nfcwilink.o
+obj-$(CONFIG_BCM2079X) += bcm2079x-i2c.o
ccflags-$(CONFIG_NFC_DEBUG) := -DDEBUG
diff --git a/drivers/nfc/bcm2079x-i2c.c b/drivers/nfc/bcm2079x-i2c.c
new file mode 100644
index 0000000..d719409
--- /dev/null
+++ b/drivers/nfc/bcm2079x-i2c.c
@@ -0,0 +1,472 @@
+/*
+ * Copyright (C) 2012 Broadcom Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/jiffies.h>
+#include <linux/uaccess.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/miscdevice.h>
+#include <linux/spinlock.h>
+#include <linux/poll.h>
+#include <linux/version.h>
+
+#include <linux/nfc/bcm2079x.h>
+
+/* do not change below */
+#define MAX_BUFFER_SIZE 780
+
+/* Read data */
+#define PACKET_HEADER_SIZE_NCI (4)
+#define PACKET_HEADER_SIZE_HCI (3)
+#define PACKET_TYPE_NCI (16)
+#define PACKET_TYPE_HCIEV (4)
+#define MAX_PACKET_SIZE (PACKET_HEADER_SIZE_NCI + 255)
+
+struct bcm2079x_dev {
+ wait_queue_head_t read_wq;
+ struct mutex read_mutex;
+ struct i2c_client *client;
+ struct miscdevice bcm2079x_device;
+ unsigned int wake_gpio;
+ unsigned int en_gpio;
+ unsigned int irq_gpio;
+ bool irq_enabled;
+ spinlock_t irq_enabled_lock;
+ unsigned int count_irq;
+};
+
+static void bcm2079x_init_stat(struct bcm2079x_dev *bcm2079x_dev)
+{
+ bcm2079x_dev->count_irq = 0;
+}
+
+static void bcm2079x_disable_irq(struct bcm2079x_dev *bcm2079x_dev)
+{
+ unsigned long flags;
+ spin_lock_irqsave(&bcm2079x_dev->irq_enabled_lock, flags);
+ if (bcm2079x_dev->irq_enabled) {
+ disable_irq_nosync(bcm2079x_dev->client->irq);
+ bcm2079x_dev->irq_enabled = false;
+ }
+ spin_unlock_irqrestore(&bcm2079x_dev->irq_enabled_lock, flags);
+}
+
+static void bcm2079x_enable_irq(struct bcm2079x_dev *bcm2079x_dev)
+{
+ unsigned long flags;
+ spin_lock_irqsave(&bcm2079x_dev->irq_enabled_lock, flags);
+ if (!bcm2079x_dev->irq_enabled) {
+ bcm2079x_dev->irq_enabled = true;
+ enable_irq(bcm2079x_dev->client->irq);
+ }
+ spin_unlock_irqrestore(&bcm2079x_dev->irq_enabled_lock, flags);
+}
+
+/*
+ The alias address 0x79, when sent as a 7-bit address from the host processor
+ will match the first byte (highest 2 bits) of the default client address
+ (0x1FA) that is programmed in bcm20791.
+ When used together with the first byte (0xFA) of the byte sequence below,
+ it can be used to address the bcm20791 in a system that does not support
+ 10-bit address and change the default address to 0x38.
+ the new address can be changed by changing the CLIENT_ADDRESS below if 0x38
+ conflicts with other device on the same i2c bus.
+ */
+#define ALIAS_ADDRESS 0x79
+
+static void change_client_addr(struct bcm2079x_dev *bcm2079x_dev, int addr)
+{
+ struct i2c_client *client;
+ int ret;
+ int i;
+ int offset = 0;
+ char addr_data[] = {
+ 0xFA, 0xF2, 0x00, 0x00, 0x00, 0x38, 0x00, 0x00, 0x00, 0x2A
+ };
+
+ client = bcm2079x_dev->client;
+ client->addr = ALIAS_ADDRESS;
+ client->flags &= ~I2C_CLIENT_TEN;
+ offset = 0;
+
+ addr_data[5] = addr & 0xFF;
+ ret = 0;
+ for (i = 1; i < sizeof(addr_data) - 1; ++i)
+ ret += addr_data[i];
+ addr_data[sizeof(addr_data) - 1] = (ret & 0xFF);
+ dev_info(&client->dev,
+ "Change client device from (0x%04X) flag = "\
+ "%04x, addr_data[%d] = %02x\n",
+ client->addr, client->flags, sizeof(addr_data) - 1,
+ addr_data[sizeof(addr_data) - 1]);
+ ret = i2c_master_send(client, addr_data+offset, sizeof(addr_data)-offset);
+ if (ret != sizeof(addr_data)-offset) {
+ client->addr = ALIAS_ADDRESS;
+ client->flags &= ~I2C_CLIENT_TEN;
+ dev_info(&client->dev,
+ "Change client device from (0x%04X) flag = "\
+ "%04x, addr_data[%d] = %02x\n",
+ client->addr, client->flags, sizeof(addr_data) - 1,
+ addr_data[sizeof(addr_data) - 1]);
+ ret = i2c_master_send(client, addr_data, sizeof(addr_data));
+ }
+ client->addr = addr_data[5];
+
+ dev_info(&client->dev,
+ "Change client device changed to (0x%04X) flag = %04x, ret = %d\n",
+ client->addr, client->flags, ret);
+}
+
+static irqreturn_t bcm2079x_dev_irq_handler(int irq, void *dev_id)
+{
+ struct bcm2079x_dev *bcm2079x_dev = dev_id;
+ unsigned long flags;
+
+ spin_lock_irqsave(&bcm2079x_dev->irq_enabled_lock, flags);
+ bcm2079x_dev->count_irq++;
+ spin_unlock_irqrestore(&bcm2079x_dev->irq_enabled_lock, flags);
+ wake_up(&bcm2079x_dev->read_wq);
+
+ return IRQ_HANDLED;
+}
+
+static unsigned int bcm2079x_dev_poll(struct file *filp, poll_table *wait)
+{
+ struct bcm2079x_dev *bcm2079x_dev = filp->private_data;
+ unsigned int mask = 0;
+ unsigned long flags;
+
+ poll_wait(filp, &bcm2079x_dev->read_wq, wait);
+
+ spin_lock_irqsave(&bcm2079x_dev->irq_enabled_lock, flags);
+ if (bcm2079x_dev->count_irq > 0)
+ {
+ bcm2079x_dev->count_irq--;
+ mask |= POLLIN | POLLRDNORM;
+ }
+ spin_unlock_irqrestore(&bcm2079x_dev->irq_enabled_lock, flags);
+
+ return mask;
+}
+
+static ssize_t bcm2079x_dev_read(struct file *filp, char __user *buf,
+ size_t count, loff_t *offset)
+{
+ struct bcm2079x_dev *bcm2079x_dev = filp->private_data;
+ unsigned char tmp[MAX_BUFFER_SIZE];
+ int total, len, ret;
+
+ total = 0;
+ len = 0;
+
+ if (count > MAX_BUFFER_SIZE)
+ count = MAX_BUFFER_SIZE;
+
+ mutex_lock(&bcm2079x_dev->read_mutex);
+
+ /** Read the first 4 bytes to include the length of the NCI or HCI packet.
+ **/
+ ret = i2c_master_recv(bcm2079x_dev->client, tmp, 4);
+ if (ret == 4) {
+ total = ret;
+ /** First byte is the packet type
+ **/
+ switch(tmp[0]) {
+ case PACKET_TYPE_NCI:
+ len = tmp[PACKET_HEADER_SIZE_NCI-1];
+ break;
+
+ case PACKET_TYPE_HCIEV:
+ len = tmp[PACKET_HEADER_SIZE_HCI-1];
+ if (len == 0)
+ total--;/*Since payload is 0, decrement total size (from 4 to 3) */
+ else
+ len--;/*First byte of payload is in tmp[3] already */
+ break;
+
+ default:
+ len = 0;/*Unknown packet byte */
+ break;
+ } /* switch*/
+
+ /** make sure full packet fits in the buffer
+ **/
+ if (len > 0 && (len + total) <= count) {
+ /** read the remainder of the packet.
+ **/
+ ret = i2c_master_recv(bcm2079x_dev->client, tmp+total, len);
+ if (ret == len)
+ total += len;
+ } /* if */
+ } /* if */
+
+ mutex_unlock(&bcm2079x_dev->read_mutex);
+
+ if (total > count || copy_to_user(buf, tmp, total)) {
+ dev_err(&bcm2079x_dev->client->dev,
+ "failed to copy to user space, total = %d\n", total);
+ total = -EFAULT;
+ }
+
+ return total;
+}
+
+static ssize_t bcm2079x_dev_write(struct file *filp, const char __user *buf,
+ size_t count, loff_t *offset)
+{
+ struct bcm2079x_dev *bcm2079x_dev = filp->private_data;
+ char tmp[MAX_BUFFER_SIZE];
+ int ret;
+
+ if (count > MAX_BUFFER_SIZE) {
+ dev_err(&bcm2079x_dev->client->dev, "out of memory\n");
+ return -ENOMEM;
+ }
+
+ if (copy_from_user(tmp, buf, count)) {
+ dev_err(&bcm2079x_dev->client->dev,
+ "failed to copy from user space\n");
+ return -EFAULT;
+ }
+
+ mutex_lock(&bcm2079x_dev->read_mutex);
+ /* Write data */
+
+ ret = i2c_master_send(bcm2079x_dev->client, tmp, count);
+ if (ret != count) {
+ dev_err(&bcm2079x_dev->client->dev,
+ "failed to write %d\n", ret);
+ ret = -EIO;
+ }
+ mutex_unlock(&bcm2079x_dev->read_mutex);
+
+ return ret;
+}
+
+static int bcm2079x_dev_open(struct inode *inode, struct file *filp)
+{
+ int ret = 0;
+
+ struct bcm2079x_dev *bcm2079x_dev = container_of(filp->private_data,
+ struct bcm2079x_dev,
+ bcm2079x_device);
+ filp->private_data = bcm2079x_dev;
+ bcm2079x_init_stat(bcm2079x_dev);
+ bcm2079x_enable_irq(bcm2079x_dev);
+ dev_info(&bcm2079x_dev->client->dev,
+ "%d,%d\n", imajor(inode), iminor(inode));
+
+ return ret;
+}
+
+static long bcm2079x_dev_unlocked_ioctl(struct file *filp,
+ unsigned int cmd, unsigned long arg)
+{
+ struct bcm2079x_dev *bcm2079x_dev = filp->private_data;
+
+ switch (cmd) {
+ case BCMNFC_READ_FULL_PACKET:
+ break;
+ case BCMNFC_READ_MULTI_PACKETS:
+ break;
+ case BCMNFC_CHANGE_ADDR:
+ dev_info(&bcm2079x_dev->client->dev,
+ "%s, BCMNFC_CHANGE_ADDR (%x, %lx):\n", __func__, cmd,
+ arg);
+ change_client_addr(bcm2079x_dev, arg);
+ break;
+ case BCMNFC_POWER_CTL:
+ gpio_set_value(bcm2079x_dev->en_gpio, arg);
+ break;
+ case BCMNFC_WAKE_CTL:
+ gpio_set_value(bcm2079x_dev->wake_gpio, arg);
+ break;
+ default:
+ dev_err(&bcm2079x_dev->client->dev,
+ "%s, unknown cmd (%x, %lx)\n", __func__, cmd, arg);
+ return 0;
+ }
+
+ return 0;
+}
+
+static const struct file_operations bcm2079x_dev_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .poll = bcm2079x_dev_poll,
+ .read = bcm2079x_dev_read,
+ .write = bcm2079x_dev_write,
+ .open = bcm2079x_dev_open,
+ .unlocked_ioctl = bcm2079x_dev_unlocked_ioctl
+};
+
+static int bcm2079x_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ int ret;
+ struct bcm2079x_platform_data *platform_data;
+ struct bcm2079x_dev *bcm2079x_dev;
+
+ platform_data = client->dev.platform_data;
+
+ dev_info(&client->dev, "%s, probing bcm2079x driver flags = %x\n", __func__, client->flags);
+ if (platform_data == NULL) {
+ dev_err(&client->dev, "nfc probe fail\n");
+ return -ENODEV;
+ }
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ dev_err(&client->dev, "need I2C_FUNC_I2C\n");
+ return -ENODEV;
+ }
+
+ ret = gpio_request_one(platform_data->irq_gpio, GPIOF_IN, "nfc_int");
+ if (ret)
+ return -ENODEV;
+ ret = gpio_request_one(platform_data->en_gpio, GPIOF_OUT_INIT_LOW, "nfc_ven");
+ if (ret)
+ goto err_en;
+ ret = gpio_request_one(platform_data->wake_gpio, GPIOF_OUT_INIT_LOW,"nfc_firm");
+ if (ret)
+ goto err_firm;
+
+ gpio_set_value(platform_data->en_gpio, 0);
+ gpio_set_value(platform_data->wake_gpio, 0);
+
+ bcm2079x_dev = kzalloc(sizeof(*bcm2079x_dev), GFP_KERNEL);
+ if (bcm2079x_dev == NULL) {
+ dev_err(&client->dev,
+ "failed to allocate memory for module data\n");
+ ret = -ENOMEM;
+ goto err_exit;
+ }
+
+ bcm2079x_dev->wake_gpio = platform_data->wake_gpio;
+ bcm2079x_dev->irq_gpio = platform_data->irq_gpio;
+ bcm2079x_dev->en_gpio = platform_data->en_gpio;
+ bcm2079x_dev->client = client;
+
+ /* init mutex and queues */
+ init_waitqueue_head(&bcm2079x_dev->read_wq);
+ mutex_init(&bcm2079x_dev->read_mutex);
+ spin_lock_init(&bcm2079x_dev->irq_enabled_lock);
+
+ bcm2079x_dev->bcm2079x_device.minor = MISC_DYNAMIC_MINOR;
+ bcm2079x_dev->bcm2079x_device.name = "bcm2079x-i2c";
+ bcm2079x_dev->bcm2079x_device.fops = &bcm2079x_dev_fops;
+
+ ret = misc_register(&bcm2079x_dev->bcm2079x_device);
+ if (ret) {
+ dev_err(&client->dev, "misc_register failed\n");
+ goto err_misc_register;
+ }
+
+ /* request irq. the irq is set whenever the chip has data available
+ * for reading. it is cleared when all data has been read.
+ */
+ dev_info(&client->dev, "requesting IRQ %d\n", client->irq);
+ bcm2079x_dev->irq_enabled = true;
+ ret = request_irq(client->irq, bcm2079x_dev_irq_handler,
+ IRQF_TRIGGER_RISING, client->name, bcm2079x_dev);
+ if (ret) {
+ dev_err(&client->dev, "request_irq failed\n");
+ goto err_request_irq_failed;
+ }
+ bcm2079x_disable_irq(bcm2079x_dev);
+ i2c_set_clientdata(client, bcm2079x_dev);
+ dev_info(&client->dev,
+ "%s, probing bcm2079x driver exited successfully\n",
+ __func__);
+ return 0;
+
+err_request_irq_failed:
+ misc_deregister(&bcm2079x_dev->bcm2079x_device);
+err_misc_register:
+ mutex_destroy(&bcm2079x_dev->read_mutex);
+ kfree(bcm2079x_dev);
+err_exit:
+ gpio_free(platform_data->wake_gpio);
+err_firm:
+ gpio_free(platform_data->en_gpio);
+err_en:
+ gpio_free(platform_data->irq_gpio);
+ return ret;
+}
+
+static int bcm2079x_remove(struct i2c_client *client)
+{
+ struct bcm2079x_dev *bcm2079x_dev;
+
+ bcm2079x_dev = i2c_get_clientdata(client);
+ free_irq(client->irq, bcm2079x_dev);
+ misc_deregister(&bcm2079x_dev->bcm2079x_device);
+ mutex_destroy(&bcm2079x_dev->read_mutex);
+ gpio_free(bcm2079x_dev->irq_gpio);
+ gpio_free(bcm2079x_dev->en_gpio);
+ gpio_free(bcm2079x_dev->wake_gpio);
+ kfree(bcm2079x_dev);
+
+ return 0;
+}
+
+static const struct i2c_device_id bcm2079x_id[] = {
+ {"bcm2079x-i2c", 0},
+ {}
+};
+
+static struct i2c_driver bcm2079x_driver = {
+ .id_table = bcm2079x_id,
+ .probe = bcm2079x_probe,
+ .remove = bcm2079x_remove,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "bcm2079x-i2c",
+ },
+};
+
+/*
+ * module load/unload record keeping
+ */
+
+static int __init bcm2079x_dev_init(void)
+{
+ return i2c_add_driver(&bcm2079x_driver);
+}
+module_init(bcm2079x_dev_init);
+
+static void __exit bcm2079x_dev_exit(void)
+{
+ i2c_del_driver(&bcm2079x_driver);
+}
+module_exit(bcm2079x_dev_exit);
+
+MODULE_AUTHOR("Broadcom");
+MODULE_DESCRIPTION("NFC bcm2079x driver");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/nfc/bcm2079x.h b/include/linux/nfc/bcm2079x.h
new file mode 100644
index 0000000..359a008
--- /dev/null
+++ b/include/linux/nfc/bcm2079x.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2012 Broadcom Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _BCM2079X_H
+#define _BCM2079X_H
+
+#define BCMNFC_MAGIC 0xFA
+
+/*
+ * BCMNFC power control via ioctl
+ * BCMNFC_POWER_CTL(0): power off
+ * BCMNFC_POWER_CTL(1): power on
+ * BCMNFC_WAKE_CTL(0): wake off
+ * BCMNFC_WAKE_CTL(1): wake on
+ */
+#define BCMNFC_POWER_CTL _IO(BCMNFC_MAGIC, 0x01)
+#define BCMNFC_CHANGE_ADDR _IO(BCMNFC_MAGIC, 0x02)
+#define BCMNFC_READ_FULL_PACKET _IO(BCMNFC_MAGIC, 0x03)
+#define BCMNFC_SET_WAKE_ACTIVE_STATE _IO(BCMNFC_MAGIC, 0x04)
+#define BCMNFC_WAKE_CTL _IO(BCMNFC_MAGIC, 0x05)
+#define BCMNFC_READ_MULTI_PACKETS _IO(BCMNFC_MAGIC, 0x06)
+
+struct bcm2079x_platform_data {
+ unsigned int irq_gpio;
+ unsigned int en_gpio;
+ int wake_gpio;
+};
+
+#endif