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kernel_samsung_a34x-permissive/drivers/input/touchscreen/mediatek/GT9157/gt9xx_driver.c
Fede2782 6db4831e98
Import A346BXXU4BWK2 kernel source 
Android 14
2024-04-28 15:51:13 +02:00

2837 lines
67 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2019 MediaTek Inc.
*/
#include "gt9xx_config.h"
#include "include/tpd_gt9xx_common.h"
#include "tpd.h"
#ifdef CONFIG_GTP_PROXIMITY
#include <hwmsen_dev.h>
#include <hwmsensor.h>
#include <sensors_io.h>
#endif
#ifdef CONFIG_GTP_SUPPORT_I2C_DMA
#include <linux/dma-mapping.h>
#endif
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/of_irq.h>
#include <linux/proc_fs.h> /*proc */
#include <uapi/linux/sched/types.h>
static int tpd_flag;
int tpd_halt;
static int tpd_eint_mode = 1;
static struct task_struct *thread;
static struct task_struct *init_panel_thread;
static int tpd_polling_time = 50;
static DECLARE_WAIT_QUEUE_HEAD(waiter);
static DEFINE_MUTEX(i2c_access);
static bool irq_enabled;
static unsigned int touch_irq;
#ifdef CONFIG_GTP_HAVE_TOUCH_KEY
static const u16 touch_key_array[] = TPD_KEYS;
#define GTP_MAX_KEY_NUM \
(ARRAY_SIZE(touch_key_array) / sizeof(touch_key_array[0]))
#endif
#ifdef CONFIG_GTP_CHARGER_DETECT
static void gtp_charger_switch(s32 dir_update);
#endif
#if (defined(TPD_WARP_START) && defined(TPD_WARP_END))
static int tpd_wb_start_local[TPD_WARP_CNT] = TPD_WARP_START;
static int tpd_wb_end_local[TPD_WARP_CNT] = TPD_WARP_END;
#endif
#if (defined(TPD_HAVE_CALIBRATION) && !defined(TPD_CUSTOM_CALIBRATION))
static int tpd_def_calmat_local[8] = TPD_CALIBRATION_MATRIX;
#endif
#ifdef CONFIG_GTP_SUPPORT_I2C_DMA
static u8 *gpDMABuf_va;
static dma_addr_t gpDMABuf_pa;
#endif
static irqreturn_t tpd_interrupt_handler(int irq, void *dev_id);
static int touch_event_handler(void *unused);
static int tpd_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id);
static int tpd_i2c_detect(struct i2c_client *client,
struct i2c_board_info *info);
static int tpd_i2c_remove(struct i2c_client *client);
static void tpd_on(void);
static void tpd_off(void);
static s32 gtp_send_cfg(struct i2c_client *);
#ifdef CONFIG_GTP_CHARGER_DETECT
#define TPD_CHARGER_CHECK_CIRCLE 50
static struct delayed_work gtp_charger_check_work;
/*static void gtp_charger_check_func(struct work_struct *);*/
/*static u8 gtp_charger_mode;*/
#endif
#ifdef CONFIG_GTP_ESD_PROTECT
static int clk_tick_cnt = 200;
static struct delayed_work gtp_esd_check_work;
static struct workqueue_struct *gtp_workqueue;
static s32 gtp_init_ext_watchdog(struct i2c_client *client);
static void gtp_esd_check_func(struct work_struct *);
static u8 esd_running;
static spinlock_t esd_lock;
#endif
#ifdef CONFIG_HOTKNOT_BLOCK_RW
u8 hotknot_paired_flag;
#endif
#ifdef CONFIG_GTP_PROXIMITY
#define TPD_PROXIMITY_VALID_REG 0x814E
#define TPD_PROXIMITY_ENABLE_REG 0x8042
static u8 tpd_proximity_flag;
static u8 tpd_proximity_detect = 1; /* 0-->close ; 1--> far away */
#endif
#ifndef GTP_REG_REFRESH_RATE
#define GTP_REG_REFRESH_RATE 0x8056
#endif
static u8 config[GTP_CONFIG_MAX_LENGTH + GTP_ADDR_LENGTH] = {
GTP_REG_CONFIG_DATA >> 8, GTP_REG_CONFIG_DATA & 0xff};
#ifdef CONFIG_GTP_CHARGER_DETECT
static u8 gtp_charger_config[GTP_CONFIG_MAX_LENGTH + GTP_ADDR_LENGTH] = {
GTP_REG_CONFIG_DATA >> 8, GTP_REG_CONFIG_DATA & 0xff};
#endif
#pragma pack(1)
struct st_tpd_info {
u16 pid; /* product id */
u16 vid; /* version id */
};
#pragma pack()
u8 gtp_rawdiff_mode;
static struct st_tpd_info tpd_info;
static u8 int_type;
static u32 abs_x_max;
static u32 abs_y_max;
#ifdef CONFIG_GTP_DRIVER_SEND_CFG
static u8 pnl_init_error;
#endif
u8 cfg_len;
u8 gtp_resetting;
static u8 chip_gt9xxs; /* true if chip type is gt9xxs,like gt915s */
u16 version_info;
#if defined(CONFIG_GTP_COMPATIBLE_MODE) || defined(CONFIG_GTP_HOTKNOT)
enum chip_type_t gtp_chip_type = CHIP_TYPE_GT9;
#endif
#ifdef CONFIG_GTP_COMPATIBLE_MODE
u8 driver_num;
u8 sensor_num;
u8 gtp_ref_retries;
u8 gtp_clk_retries;
u8 gtp_clk_buf[6];
u8 rqst_processing;
static u8 gtp_bak_ref_proc(struct i2c_client *client, u8 mode);
static u8 gtp_main_clk_proc(struct i2c_client *client);
static void gtp_recovery_reset(struct i2c_client *client);
#endif
static struct proc_dir_entry *gt91xx_config_proc;
struct i2c_client *i2c_client_point;
static const struct i2c_device_id tpd_i2c_id[] = {{"gt9xx", 0}, {} };
static unsigned short force[] = {0, 0xBA, I2C_CLIENT_END, I2C_CLIENT_END};
static const unsigned short *const forces[] = {force, NULL};
static const struct of_device_id gt9xx_dt_match[] = {
{.compatible = "mediatek,cap_touch"}, {},
};
MODULE_DEVICE_TABLE(of, gt9xx_dt_match);
static struct i2c_driver tpd_i2c_driver = {
.driver = {
.name = "gt9xx",
.of_match_table = of_match_ptr(gt9xx_dt_match),
},
.probe = tpd_i2c_probe,
.remove = tpd_i2c_remove,
.detect = tpd_i2c_detect,
.id_table = tpd_i2c_id,
.address_list = (const unsigned short *)forces,
};
static unsigned int tpd_rst_gpio;
static unsigned int tpd_int_gpio;
static int of_get_gt9xx_platform_data(struct device *dev)
{
if (dev->of_node) {
const struct of_device_id *match;
match = of_match_device(of_match_ptr(gt9xx_dt_match), dev);
if (!match) {
GTP_ERROR("Error: No device match found\n");
return -ENODEV;
}
tpd_rst_gpio = of_get_named_gpio(dev->of_node, "rst-gpio", 0);
tpd_int_gpio = of_get_named_gpio(dev->of_node, "int-gpio", 0);
}
return 0;
}
static int gtp_get_gpio_res(void)
{
int ret;
/* configure the gpio pins */
ret = gpio_request_one(tpd_rst_gpio, GPIOF_OUT_INIT_LOW,
"touchp_reset");
if (ret < 0) {
GTP_ERROR("Unable to request gpio reset_pin\n");
return -1;
}
ret = gpio_request_one(tpd_int_gpio, GPIOF_IN, "tpd_int");
if (ret < 0) {
GTP_ERROR("Unable to request gpio int_pin\n");
gpio_free(tpd_rst_gpio);
return -1;
}
return 0;
}
static void gtp_free_gpio_res(void)
{
gpio_free(tpd_rst_gpio);
gpio_free(tpd_int_gpio);
}
void gtp_gpio_output(int gpio_type, int level)
{
#if 1
tpd_gpio_output(gpio_type, level);
#else
if (gpio_type == GTP_RST_GPIO)
gpio_direction_output(tpd_rst_gpio, level);
else if (gpio_type == GTP_IRQ_GPIO)
gpio_direction_output(tpd_int_gpio, level);
#endif
}
void gtp_gpio_input(int gpio_type)
{
#if 1
if (gpio_type == GTP_IRQ_GPIO)
tpd_gpio_as_int(GTP_IRQ_GPIO);
#else
if (gpio_type == GTP_RST_GPIO)
gpio_direction_input(tpd_rst_gpio);
else if (gpio_type == GTP_IRQ_GPIO)
gpio_direction_input(tpd_int_gpio);
#endif
}
void gtp_irq_enable(void)
{
if (!irq_enabled) {
irq_enabled = true;
enable_irq(touch_irq);
}
}
void gtp_irq_disable(void)
{
if (irq_enabled) {
irq_enabled = false;
disable_irq(touch_irq);
}
}
#ifdef TPD_REFRESH_RATE
static u8 gtp_set_refresh_rate(u8 rate)
{
u8 buf[3] = {GTP_REG_REFRESH_RATE >> 8, GTP_REG_REFRESH_RATE & 0xff,
rate};
if (rate > 0xf) {
GTP_ERROR("Refresh rate is over range (%d)", rate);
return FAIL;
}
GTP_INFO("Refresh rate change to %d", rate);
return gtp_i2c_write(i2c_client_point, buf, sizeof(buf));
}
static u8 gtp_get_refresh_rate(void)
{
int ret;
u8 buf[3] = {GTP_REG_REFRESH_RATE >> 8, GTP_REG_REFRESH_RATE & 0xff};
ret = gtp_i2c_read(i2c_client_point, buf, sizeof(buf));
if (ret < 0)
return ret;
GTP_INFO("Refresh rate is %d", buf[GTP_ADDR_LENGTH]);
return buf[GTP_ADDR_LENGTH];
}
static ssize_t show_refresh_rate(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret = gtp_get_refresh_rate();
if (ret < 0)
return 0;
return sprintf(buf, "%d\n", ret);
}
static ssize_t store_refresh_rate(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t size)
{
unsigned long rate = 0;
if (kstrtoul(buf, 16, &rate))
return 0;
gtp_set_refresh_rate(rate);
return size;
}
static DEVICE_ATTR(tpd_refresh_rate, 0664, show_refresh_rate,
store_refresh_rate);
static struct device_attribute *gt9xx_attrs[] = {
&dev_attr_tpd_refresh_rate,
};
#endif
static int tpd_i2c_detect(struct i2c_client *client,
struct i2c_board_info *info)
{
strcpy(info->type, "mtk-tpd");
return 0;
}
#ifdef CONFIG_GTP_PROXIMITY
static s32 tpd_get_ps_value(void)
{
return tpd_proximity_detect;
}
static s32 tpd_enable_ps(s32 enable)
{
u8 state;
s32 ret = -1;
if (enable) {
state = 1;
tpd_proximity_flag = 1;
GTP_INFO("TPD proximity function to be on.");
} else {
state = 0;
tpd_proximity_flag = 0;
GTP_INFO("TPD proximity function to be off.");
}
ret = i2c_write_bytes(i2c_client_point, TPD_PROXIMITY_ENABLE_REG,
&state, 1);
if (ret < 0) {
GTP_ERROR("TPD %s proximity cmd failed.",
state ? "enable" : "disable");
return ret;
}
GTP_INFO("TPD proximity function %s success.",
state ? "enable" : "disable");
return 0;
}
s32 tpd_ps_operate(void *self, u32 command, void *buff_in, s32 size_in,
void *buff_out, s32 size_out, s32 *actualout)
{
s32 err = 0;
s32 value;
struct hwm_sensor_data *sensor_data;
struct hwm_sensor_data sensor_size;
switch (command) {
case SENSOR_DELAY:
if ((buff_in == NULL) || (size_in < sizeof(int))) {
GTP_ERROR("Set delay parameter error!");
err = -EINVAL;
}
/* Do nothing */
break;
case SENSOR_ENABLE:
if ((buff_in == NULL) || (size_in < sizeof(int))) {
GTP_ERROR("Enable sensor parameter error!");
err = -EINVAL;
} else {
value = *(int *)buff_in;
err = tpd_enable_ps(value);
}
break;
case SENSOR_GET_DATA:
if ((buff_out == NULL) || (size_out < sizeof(sensor_size))) {
GTP_ERROR("Get sensor data parameter error!");
err = -EINVAL;
} else {
sensor_data = (struct hwm_sensor_data *)buff_out;
sensor_data->values[0] = tpd_get_ps_value();
sensor_data->value_divide = 1;
sensor_data->status = SENSOR_STATUS_ACCURACY_MEDIUM;
}
break;
default:
GTP_ERROR(
"proxmy sensor operate function no this parameter %d!",
command);
err = -1;
break;
}
return err;
}
#endif
static ssize_t gt91xx_config_read_proc(struct file *file, char *buffer,
size_t count, loff_t *ppos)
{
char *page = NULL;
char *ptr = NULL;
char temp_data[GTP_CONFIG_MAX_LENGTH + 2] = {0};
int i, len, err = -1;
page = kmalloc(PAGE_SIZE, GFP_KERNEL);
if (!page) {
kfree(page);
return -ENOMEM;
}
ptr = page;
ptr += sprintf(ptr, "==== GT9XX config init value====\n");
for (i = 0; i < GTP_CONFIG_MAX_LENGTH; i++) {
ptr += sprintf(ptr, "0x%02X ", config[i + 2]);
if (i % 8 == 7)
ptr += sprintf(ptr, "\n");
}
ptr += sprintf(ptr, "\n");
ptr += sprintf(ptr, "==== GT9XX config real value====\n");
i2c_read_bytes(i2c_client_point, GTP_REG_CONFIG_DATA, temp_data,
GTP_CONFIG_MAX_LENGTH);
for (i = 0; i < GTP_CONFIG_MAX_LENGTH; i++) {
ptr += sprintf(ptr, "0x%02X ", temp_data[i]);
if (i % 8 == 7)
ptr += sprintf(ptr, "\n");
}
/* Touch PID & VID */
ptr += sprintf(ptr, "\n");
ptr += sprintf(ptr, "==== GT9XX Version ID ====\n");
i2c_read_bytes(i2c_client_point, GTP_REG_VERSION, temp_data, 6);
ptr += sprintf(ptr, "Chip PID: %c%c%c VID: 0x%02X%02X\n",
temp_data[0], temp_data[1], temp_data[2], temp_data[5],
temp_data[4]);
i2c_read_bytes(i2c_client_point, 0x41E4, temp_data, 1);
ptr += sprintf(ptr, "Boot status 0x%X\n", temp_data[0]);
/* Touch Status and Clock Gate */
ptr += sprintf(ptr, "\n");
ptr += sprintf(ptr, "==== Touch Status and Clock Gate ====\n");
ptr += sprintf(ptr, "status: 1: on, 0 :off\n");
ptr += sprintf(ptr, "status:%d\n", (tpd_halt + 1) & 0x1);
len = ptr - page;
if (*ppos >= len) {
kfree(page);
return 0;
}
err = copy_to_user(buffer, (char *)page, len);
*ppos += len;
if (err) {
kfree(page);
return err;
}
kfree(page);
return len;
}
static ssize_t gt91xx_config_write_proc(struct file *file, const char *buffer,
size_t count, loff_t *ppos)
{
s32 ret = 0;
char temp[25] = {0}; /* for store special format cmd */
char mode_str[15] = {0};
unsigned int mode;
u8 buf[1];
GTP_DEBUG("write count %ld\n", (unsigned long)count);
if (count > GTP_CONFIG_MAX_LENGTH) {
GTP_ERROR("size not match [%d:%ld]", GTP_CONFIG_MAX_LENGTH,
(unsigned long)count);
return -EFAULT;
}
/**********************************************/
/* for store special format cmd */
if (copy_from_user(temp, buffer, sizeof(temp))) {
GTP_ERROR("copy from user fail 2");
return -EFAULT;
}
ret = sscanf(temp, "%s %d", (char *)&mode_str, &mode);
/***********POLLING/EINT MODE switch****************/
if (strcmp(mode_str, "polling") == 0) {
if (mode >= 10 && mode <= 200) {
GTP_INFO("Switch to polling mode, polling time is %d",
mode);
tpd_eint_mode = 0;
tpd_polling_time = mode;
tpd_flag = 1;
wake_up_interruptible(&waiter);
} else {
GTP_INFO(
"Wrong polling time, please set between 10~200ms");
}
return count;
}
if (strcmp(mode_str, "eint") == 0) {
GTP_INFO("Switch to eint mode");
tpd_eint_mode = 1;
return count;
}
if (strcmp(mode_str, "switch") == 0) {
if (mode == 0) /* turn off */
tpd_off();
else if (mode == 1) /* turn on */
tpd_on();
else
GTP_ERROR("error mode :%d", mode);
return count;
}
/* force clear config */
if (strcmp(mode_str, "clear_config") == 0) {
GTP_INFO("Force clear config");
buf[0] = 0x10;
ret = i2c_write_bytes(i2c_client_point, GTP_REG_SLEEP, buf, 1);
return count;
}
if (copy_from_user(&config[2], buffer, count)) {
GTP_ERROR("copy from user fail\n");
return -EFAULT;
}
/***********clk operate reseved****************/
ret = gtp_send_cfg(i2c_client_point);
abs_x_max = (config[RESOLUTION_LOC + 1] << 8) + config[RESOLUTION_LOC];
abs_y_max =
(config[RESOLUTION_LOC + 3] << 8) + config[RESOLUTION_LOC + 2];
int_type = (config[TRIGGER_LOC]) & 0x03;
if (ret < 0)
GTP_ERROR("send config failed.");
return count;
}
#ifdef CONFIG_GTP_SUPPORT_I2C_DMA
s32 i2c_dma_read(struct i2c_client *client, u16 addr, u8 *rxbuf, s32 len)
{
int ret;
s32 retry = 0;
u8 buffer[2];
struct i2c_msg msg[2] = {
{
#ifdef CONFIG_MTK_I2C_EXTENSION
.addr = (client->addr & I2C_MASK_FLAG),
#else
.addr = client->addr,
#endif
.flags = 0,
.buf = buffer,
.len = 2,
#ifdef CONFIG_MTK_I2C_EXTENSION
.timing = I2C_MASTER_CLOCK
#endif
},
{
#ifdef CONFIG_MTK_I2C_EXTENSION
.addr = (client->addr & I2C_MASK_FLAG),
.ext_flag = (client->ext_flag | I2C_ENEXT_FLAG |
I2C_DMA_FLAG),
#else
.addr = client->addr,
/*.ext_flag = client->ext_flag, */
#endif
.flags = I2C_M_RD,
.buf = (u8 *)gpDMABuf_pa,
.len = len,
#ifdef CONFIG_MTK_I2C_EXTENSION
.timing = I2C_MASTER_CLOCK
#endif
},
};
buffer[0] = (addr >> 8) & 0xFF;
buffer[1] = addr & 0xFF;
if (rxbuf == NULL)
return -1;
GTP_DEBUG("dma i2c read: 0x%04X, %d bytes(s)", addr, len);
for (retry = 0; retry < 5; ++retry) {
ret = i2c_transfer(client->adapter, &msg[0], 2);
if (ret < 0)
continue;
memcpy(rxbuf, gpDMABuf_va, len);
return 0;
}
GTP_ERROR("Dma I2C Read Error: 0x%04X, %d byte(s), err-code: %d", addr,
len, ret);
return ret;
}
s32 i2c_dma_write(struct i2c_client *client, u16 addr, u8 *txbuf, s32 len)
{
int ret;
s32 retry = 0;
u8 *wr_buf = gpDMABuf_va;
struct i2c_msg msg = {
#ifdef CONFIG_MTK_I2C_EXTENSION
.addr = (client->addr & I2C_MASK_FLAG),
.ext_flag = (client->ext_flag | I2C_ENEXT_FLAG | I2C_DMA_FLAG),
#else
.addr = client->addr,
/*.ext_flag = client->ext_flag, */
#endif
.flags = 0,
.buf = (u8 *)gpDMABuf_pa,
.len = 2 + len,
#ifdef CONFIG_MTK_I2C_EXTENSION
.timing = I2C_MASTER_CLOCK
#endif
};
wr_buf[0] = (u8)((addr >> 8) & 0xFF);
wr_buf[1] = (u8)(addr & 0xFF);
if (txbuf == NULL)
return -1;
GTP_DEBUG("dma i2c write: 0x%04X, %d bytes(s)", addr, len);
memcpy(wr_buf + 2, txbuf, len);
for (retry = 0; retry < 5; ++retry) {
ret = i2c_transfer(client->adapter, &msg, 1);
if (ret < 0)
continue;
return 0;
}
GTP_ERROR("Dma I2C Write Error: 0x%04X, %d byte(s), err-code: %d", addr,
len, ret);
return ret;
}
s32 i2c_read_bytes_dma(struct i2c_client *client, u16 addr, u8 *rxbuf, s32 len)
{
s32 left = len;
s32 read_len = 0;
u8 *rd_buf = rxbuf;
s32 ret = 0;
GTP_DEBUG("Read bytes dma: 0x%04X, %d byte(s)", addr, len);
while (left > 0) {
if (left > GTP_DMA_MAX_TRANSACTION_LENGTH)
read_len = GTP_DMA_MAX_TRANSACTION_LENGTH;
else
read_len = left;
ret = i2c_dma_read(client, addr, rd_buf, read_len);
if (ret < 0) {
GTP_ERROR("dma read failed");
return -1;
}
left -= read_len;
addr += read_len;
rd_buf += read_len;
}
return 0;
}
s32 i2c_write_bytes_dma(struct i2c_client *client, u16 addr, u8 *txbuf, s32 len)
{
s32 ret = 0;
s32 write_len = 0;
s32 left = len;
u8 *wr_buf = txbuf;
GTP_DEBUG("Write bytes dma: 0x%04X, %d byte(s)", addr, len);
while (left > 0) {
if (left > GTP_DMA_MAX_I2C_TRANSFER_SIZE)
write_len = GTP_DMA_MAX_I2C_TRANSFER_SIZE;
else
write_len = left;
ret = i2c_dma_write(client, addr, wr_buf, write_len);
if (ret < 0) {
GTP_ERROR("dma i2c write failed!");
return -1;
}
left -= write_len;
addr += write_len;
wr_buf += write_len;
}
return 0;
}
#endif
int i2c_read_bytes_non_dma(struct i2c_client *client, u16 addr, u8 *rxbuf,
int len)
{
u8 buffer[GTP_ADDR_LENGTH];
u8 retry;
u16 left = len;
u16 offset = 0;
int tb;
struct i2c_msg msg[2] = {
{
#ifdef CONFIG_MTK_I2C_EXTENSION
.addr = ((client->addr & I2C_MASK_FLAG) |
(I2C_ENEXT_FLAG)),
/* .addr = ((client->addr &I2C_MASK_FLAG) | (I2C_PUSHPULL_FLAG)), */
#else
.addr = client->addr,
#endif
.flags = 0,
.buf = buffer,
.len = GTP_ADDR_LENGTH,
#ifdef CONFIG_MTK_I2C_EXTENSION
.timing = I2C_MASTER_CLOCK
#endif
},
{
#ifdef CONFIG_MTK_I2C_EXTENSION
.addr = ((client->addr & I2C_MASK_FLAG) |
(I2C_ENEXT_FLAG)),
/* .addr = ((client->addr &I2C_MASK_FLAG) | (I2C_PUSHPULL_FLAG)), */
#else
.addr = client->addr,
#endif
.flags = I2C_M_RD,
#ifdef CONFIG_MTK_I2C_EXTENSION
.timing = I2C_MASTER_CLOCK
#endif
},
};
if (rxbuf == NULL)
return -1;
GTP_ERROR("i2c_read_bytes to device %02X address %04X len %d",
client->addr, addr, len);
while (left > 0) {
buffer[0] = ((addr + offset) >> 8) & 0xFF;
buffer[1] = (addr + offset) & 0xFF;
msg[1].buf = &rxbuf[offset];
if (left > MAX_TRANSACTION_LENGTH) {
msg[1].len = MAX_TRANSACTION_LENGTH;
left -= MAX_TRANSACTION_LENGTH;
offset += MAX_TRANSACTION_LENGTH;
} else {
msg[1].len = left;
left = 0;
}
retry = 0;
while ((tb = i2c_transfer(client->adapter, &msg[0], 2)) != 2) {
retry++;
if (retry == 5) {
GTP_ERROR("I2C read 0x%X length=%d failed\n",
addr + offset, len);
return -1;
}
}
}
return 0;
}
int i2c_read_bytes(struct i2c_client *client, u16 addr, u8 *rxbuf, int len)
{
#ifdef CONFIG_GTP_SUPPORT_I2C_DMA
return i2c_read_bytes_dma(client, addr, rxbuf, len);
#else
return i2c_read_bytes_non_dma(client, addr, rxbuf, len);
#endif
}
s32 gtp_i2c_read(struct i2c_client *client, u8 *buf, s32 len)
{
s32 ret = -1;
u16 addr = (buf[0] << 8) + buf[1];
ret = i2c_read_bytes_non_dma(client, addr, &buf[2], len - 2);
if (!ret)
return 2;
#ifdef CONFIG_GTP_GESTURE_WAKEUP
if (gesture_data.doze_status == DOZE_ENABLED)
return ret;
#endif
#ifdef CONFIG_GTP_COMPATIBLE_MODE
if (gtp_chip_type == CHIP_TYPE_GT9F)
gtp_recovery_reset(client);
else
#endif
gtp_reset_guitar(client, 20);
return ret;
}
s32 gtp_i2c_read_dbl_check(struct i2c_client *client, u16 addr, u8 *rxbuf,
int len)
{
u8 buf[16] = {0};
u8 confirm_buf[16] = {0};
u8 retry = 0;
while (retry++ < 3) {
memset(buf, 0xAA, 16);
buf[0] = (u8)(addr >> 8);
buf[1] = (u8)(addr & 0xFF);
gtp_i2c_read(client, buf, len + 2);
memset(confirm_buf, 0xAB, 16);
confirm_buf[0] = (u8)(addr >> 8);
confirm_buf[1] = (u8)(addr & 0xFF);
gtp_i2c_read(client, confirm_buf, len + 2);
if (!memcmp(buf, confirm_buf, len + 2)) {
memcpy(rxbuf, confirm_buf + 2, len);
return SUCCESS;
}
}
GTP_ERROR("i2c read 0x%04X, %d bytes, double check failed!", addr, len);
return FAIL;
}
int i2c_write_bytes_non_dma(struct i2c_client *client, u16 addr, u8 *txbuf,
int len)
{
u8 buffer[MAX_TRANSACTION_LENGTH];
u16 left = len;
u16 offset = 0;
u8 retry = 0;
struct i2c_msg msg = {
#ifdef CONFIG_MTK_I2C_EXTENSION
.addr = ((client->addr & I2C_MASK_FLAG) | (I2C_ENEXT_FLAG)),
#else
.addr = client->addr,
#endif
.flags = 0,
.buf = buffer,
#ifdef CONFIG_MTK_I2C_EXTENSION
.timing = I2C_MASTER_CLOCK,
#endif
};
if (txbuf == NULL)
return -1;
GTP_DEBUG("i2c_write_bytes to device %02X address %04X len %d",
client->addr, addr, len);
while (left > 0) {
retry = 0;
buffer[0] = ((addr + offset) >> 8) & 0xFF;
buffer[1] = (addr + offset) & 0xFF;
if (left > MAX_I2C_TRANSFER_SIZE) {
memcpy(&buffer[GTP_ADDR_LENGTH], &txbuf[offset],
MAX_I2C_TRANSFER_SIZE);
msg.len = MAX_TRANSACTION_LENGTH;
left -= MAX_I2C_TRANSFER_SIZE;
offset += MAX_I2C_TRANSFER_SIZE;
} else {
memcpy(&buffer[GTP_ADDR_LENGTH], &txbuf[offset], left);
msg.len = left + GTP_ADDR_LENGTH;
left = 0;
}
GTP_DEBUG("byte left %d offset %d\n", left, offset);
while (i2c_transfer(client->adapter, &msg, 1) != 1) {
retry++;
if (retry == 5) {
GTP_ERROR("I2C write 0x%X%X length=%d failed\n",
buffer[0], buffer[1], len);
return -1;
}
}
}
return 0;
}
int i2c_write_bytes(struct i2c_client *client, u16 addr, u8 *txbuf, int len)
{
#ifdef CONFIG_GTP_SUPPORT_I2C_DMA
return i2c_write_bytes_dma(client, addr, txbuf, len);
#else
return i2c_write_bytes_non_dma(client, addr, txbuf, len);
#endif
}
s32 gtp_i2c_write(struct i2c_client *client, u8 *buf, s32 len)
{
s32 ret = -1;
u16 addr = (buf[0] << 8) + buf[1];
ret = i2c_write_bytes_non_dma(client, addr, &buf[2], len - 2);
if (!ret)
return 1;
#ifdef CONFIG_GTP_GESTURE_WAKEUP
if (gesture_data.doze_status == DOZE_ENABLED)
return ret;
#endif
#ifdef CONFIG_GTP_COMPATIBLE_MODE
if (gtp_chip_type == CHIP_TYPE_GT9F)
gtp_recovery_reset(client);
else
#endif
gtp_reset_guitar(client, 20);
return ret;
}
static s32 gtp_send_cfg(struct i2c_client *client)
{
s32 ret = 1;
#ifdef CONFIG_GTP_DRIVER_SEND_CFG
s32 retry = 0;
if (pnl_init_error) {
GTP_INFO("Error occurred in init_panel, no config sent!");
return 0;
}
GTP_DEBUG("Driver Send Config");
for (retry = 0; retry < 5; retry++) {
ret = gtp_i2c_write(client, config,
GTP_CONFIG_MAX_LENGTH + GTP_ADDR_LENGTH);
if (ret > 0)
break;
}
#endif
return ret;
}
#ifdef CONFIG_GTP_CHARGER_DETECT
static int gtp_send_chr_cfg(struct i2c_client *client)
{
s32 ret = 1;
#ifdef CONFIG_GTP_DRIVER_SEND_CFG
s32 retry = 0;
if (pnl_init_error) {
GTP_INFO("Error occurred in init_panel, no config sent!");
return 0;
}
GTP_INFO("Driver Send Config");
for (retry = 0; retry < 5; retry++) {
ret = gtp_i2c_write(client, gtp_charger_config,
GTP_CONFIG_MAX_LENGTH + GTP_ADDR_LENGTH);
if (ret > 0)
break;
}
#endif
return ret;
}
#endif
s32 gtp_read_version(struct i2c_client *client, u16 *version)
{
s32 ret = -1;
s32 i;
u8 buf[8] = {GTP_REG_VERSION >> 8, GTP_REG_VERSION & 0xff};
GTP_DEBUG_FUNC();
ret = gtp_i2c_read(client, buf, sizeof(buf));
if (ret < 0) {
GTP_ERROR("GTP read version failed");
return ret;
}
if (version)
*version = (buf[7] << 8) | buf[6];
tpd_info.vid = *version;
tpd_info.pid = 0x00;
for (i = 0; i < 4; i++) {
if (buf[i + 2] < 0x30)
break;
tpd_info.pid |= ((buf[i + 2] - 0x30) << ((3 - i) * 4));
}
if (buf[5] == 0x00) {
GTP_INFO("IC VERSION: %c%c%c_%02x%02x", buf[2], buf[3], buf[4],
buf[7], buf[6]);
} else {
if (buf[5] == 'S' || buf[5] == 's')
chip_gt9xxs = 1;
GTP_INFO("IC VERSION:%c%c%c%c_%02x%02x", buf[2], buf[3], buf[4],
buf[5], buf[7], buf[6]);
}
return ret;
}
s32 gtp_init_panel(void *v_client)
{
s32 ret = 0;
struct i2c_client *client = (struct i2c_client *)v_client;
#ifdef CONFIG_GTP_DRIVER_SEND_CFG
s32 i;
u8 check_sum = 0;
u8 opr_buf[16];
u8 sensor_id = 0;
u8 retry = 0;
u8 flash_cfg_version = 0;
u8 drv_cfg_version = 0;
u8 cfg_info_group0[] = CTP_CFG_GROUP0;
u8 cfg_info_group1[] = CTP_CFG_GROUP1;
u8 cfg_info_group2[] = CTP_CFG_GROUP2;
u8 cfg_info_group3[] = CTP_CFG_GROUP3;
u8 cfg_info_group4[] = CTP_CFG_GROUP4;
u8 cfg_info_group5[] = CTP_CFG_GROUP5;
u8 *send_cfg_buf[] = {cfg_info_group0, cfg_info_group1,
cfg_info_group2, cfg_info_group3,
cfg_info_group4, cfg_info_group5};
u8 cfg_info_len[] = {
CFG_GROUP_LEN(cfg_info_group0), CFG_GROUP_LEN(cfg_info_group1),
CFG_GROUP_LEN(cfg_info_group2), CFG_GROUP_LEN(cfg_info_group3),
CFG_GROUP_LEN(cfg_info_group4), CFG_GROUP_LEN(cfg_info_group5)};
#ifdef CONFIG_GTP_CHARGER_DETECT
const u8 cfg_grp0_charger[] = GTP_CFG_GROUP0_CHARGER;
const u8 cfg_grp1_charger[] = GTP_CFG_GROUP1_CHARGER;
const u8 cfg_grp2_charger[] = GTP_CFG_GROUP2_CHARGER;
const u8 cfg_grp3_charger[] = GTP_CFG_GROUP3_CHARGER;
const u8 cfg_grp4_charger[] = GTP_CFG_GROUP4_CHARGER;
const u8 cfg_grp5_charger[] = GTP_CFG_GROUP5_CHARGER;
const u8 *cfgs_charger[] = {cfg_grp0_charger, cfg_grp1_charger,
cfg_grp2_charger, cfg_grp3_charger,
cfg_grp4_charger, cfg_grp5_charger};
u8 cfg_lens_charger[] = {CFG_GROUP_LEN(cfg_grp0_charger),
CFG_GROUP_LEN(cfg_grp1_charger),
CFG_GROUP_LEN(cfg_grp2_charger),
CFG_GROUP_LEN(cfg_grp3_charger),
CFG_GROUP_LEN(cfg_grp4_charger),
CFG_GROUP_LEN(cfg_grp5_charger)};
#endif
#endif
ret = gtp_read_version(client, &version_info);
if (ret < 0) {
GTP_ERROR("Read version failed.");
goto out;
}
#ifdef CONFIG_GTP_DRIVER_SEND_CFG
GTP_DEBUG("Config Groups\' Lengths: %d, %d, %d, %d, %d, %d",
cfg_info_len[0], cfg_info_len[1], cfg_info_len[2],
cfg_info_len[3], cfg_info_len[4], cfg_info_len[5]);
pnl_init_error = 0;
if ((!cfg_info_len[1]) && (!cfg_info_len[2]) && (!cfg_info_len[3]) &&
(!cfg_info_len[4]) && (!cfg_info_len[5])) {
sensor_id = 0;
} else {
#ifdef CONFIG_GTP_COMPATIBLE_MODE
if (tp_chip_type == CHIP_TYPE_GT9F)
msleep(50);
#endif
ret = gtp_i2c_read_dbl_check(client, GTP_REG_SENSOR_ID,
&sensor_id, 1);
if (ret == SUCCESS) {
while ((sensor_id == 0xff) && (retry++ < 3)) {
ret = gtp_i2c_read_dbl_check(client,
GTP_REG_SENSOR_ID,
&sensor_id, 1);
GTP_ERROR("GTP sensor_ID read failed time %d.",
retry);
}
if (sensor_id >= 0x06) {
GTP_ERROR(
"Invalid sensor_id(0x%02X), No Config Sent!",
sensor_id);
pnl_init_error = 1;
return -1;
}
} else {
GTP_ERROR("Failed to get sensor_id, No config sent!");
pnl_init_error = 1;
return -1;
}
GTP_INFO("Sensor_ID: %d", sensor_id);
}
cfg_len = cfg_info_len[sensor_id];
GTP_INFO("CTP_CONFIG_GROUP%d used, config length: %d", sensor_id,
cfg_len);
if (cfg_len < GTP_CONFIG_MIN_LENGTH) {
GTP_ERROR(
"CTP_CONFIG_GROUP%d is INVALID CONFIG GROUP! NO Config Sent!",
sensor_id);
GTP_ERROR(
" You need to check you header file CFG_GROUP section!");
pnl_init_error = 1;
return -1;
}
#ifdef CONFIG_GTP_COMPATIBLE_MODE
if (gtp_chip_type != CHIP_TYPE_GT9F) {
#else
{
#endif
ret = gtp_i2c_read_dbl_check(client, GTP_REG_CONFIG_DATA,
&opr_buf[0], 1);
if (ret == SUCCESS) {
GTP_DEBUG(
"CFG_CONFIG_GROUP%d Config Version: %d, 0x%02X; IC Config Version: %d, 0x%02X",
sensor_id, send_cfg_buf[sensor_id][0],
send_cfg_buf[sensor_id][0], opr_buf[0],
opr_buf[0]);
flash_cfg_version = opr_buf[0];
drv_cfg_version =
send_cfg_buf[sensor_id]
[0]; /* backup config version */
if (flash_cfg_version < 90 &&
flash_cfg_version > drv_cfg_version)
send_cfg_buf[sensor_id][0] = 0x00;
} else {
GTP_ERROR(
"Failed to get ic config version!No config sent!");
return -1;
}
}
memset(&config[GTP_ADDR_LENGTH], 0, GTP_CONFIG_MAX_LENGTH);
memcpy(&config[GTP_ADDR_LENGTH], send_cfg_buf[sensor_id], cfg_len);
#ifdef CONFIG_GTP_CUSTOM_CFG
config[RESOLUTION_LOC] = (u8)GTP_MAX_WIDTH;
config[RESOLUTION_LOC + 1] = (u8)(GTP_MAX_WIDTH >> 8);
config[RESOLUTION_LOC + 2] = (u8)GTP_MAX_HEIGHT;
config[RESOLUTION_LOC + 3] = (u8)(GTP_MAX_HEIGHT >> 8);
if (GTP_INT_TRIGGER == 0) /* RISING */
config[TRIGGER_LOC] &= 0xfe;
else if (GTP_INT_TRIGGER == 1) /* FALLING */
config[TRIGGER_LOC] |= 0x01;
#endif /* CONFIG_GTP_CUSTOM_CFG */
check_sum = 0;
for (i = GTP_ADDR_LENGTH; i < cfg_len; i++)
check_sum += config[i];
config[cfg_len] = (~check_sum) + 1;
#ifdef CONFIG_GTP_CHARGER_DETECT
GTP_DEBUG("Charger Config Groups Length: %d, %d, %d, %d, %d, %d",
cfg_lens_charger[0], cfg_lens_charger[1], cfg_lens_charger[2],
cfg_lens_charger[3], cfg_lens_charger[4],
cfg_lens_charger[5]);
memset(&gtp_charger_config[GTP_ADDR_LENGTH], 0, GTP_CONFIG_MAX_LENGTH);
if (cfg_lens_charger[sensor_id] == cfg_len)
memcpy(&gtp_charger_config[GTP_ADDR_LENGTH],
cfgs_charger[sensor_id], cfg_len);
#ifdef CONFIG_GTP_CUSTOM_CFG
gtp_charger_config[RESOLUTION_LOC] = (u8)GTP_MAX_WIDTH;
gtp_charger_config[RESOLUTION_LOC + 1] = (u8)(GTP_MAX_WIDTH >> 8);
gtp_charger_config[RESOLUTION_LOC + 2] = (u8)GTP_MAX_HEIGHT;
gtp_charger_config[RESOLUTION_LOC + 3] = (u8)(GTP_MAX_HEIGHT >> 8);
if (GTP_INT_TRIGGER == 0) /* RISING */
gtp_charger_config[TRIGGER_LOC] &= 0xfe;
else if (GTP_INT_TRIGGER == 1) /* FALLING */
gtp_charger_config[TRIGGER_LOC] |= 0x01;
#endif /* END CONFIG_GTP_CUSTOM_CFG */
if (cfg_lens_charger[sensor_id] != cfg_len)
memset(&gtp_charger_config[GTP_ADDR_LENGTH], 0,
GTP_CONFIG_MAX_LENGTH);
check_sum = 0;
for (i = GTP_ADDR_LENGTH; i < cfg_len; i++)
check_sum += gtp_charger_config[i];
gtp_charger_config[cfg_len] = (~check_sum) + 1;
#endif /* END CONFIG_GTP_CHARGER_DETECT */
#else /* DRIVER NOT SEND CONFIG */
cfg_len = GTP_CONFIG_MAX_LENGTH;
ret = gtp_i2c_read(client, config, cfg_len + GTP_ADDR_LENGTH);
if (ret < 0) {
GTP_ERROR(
"Read Config Failed, Using DEFAULT Resolution & INT Trigger!");
abs_x_max = GTP_MAX_WIDTH;
abs_y_max = GTP_MAX_HEIGHT;
int_type = GTP_INT_TRIGGER;
}
#endif /* CONFIG_GTP_DRIVER_SEND_CFG */
GTP_DEBUG_FUNC();
if ((abs_x_max == 0) && (abs_y_max == 0)) {
abs_x_max = (config[RESOLUTION_LOC + 1] << 8) +
config[RESOLUTION_LOC];
abs_y_max = (config[RESOLUTION_LOC + 3] << 8) +
config[RESOLUTION_LOC + 2];
int_type = (config[TRIGGER_LOC]) & 0x03;
}
#ifdef CONFIG_GTP_COMPATIBLE_MODE
if (gtp_chip_type == CHIP_TYPE_GT9F) {
u8 have_key = 0;
if (!memcmp(&gtp_touch_fw[4], "950", 3)) {
driver_num = config[GTP_REG_MATRIX_DRVNUM -
GTP_REG_CONFIG_DATA + 2];
sensor_num = config[GTP_REG_MATRIX_SENNUM -
GTP_REG_CONFIG_DATA + 2];
} else {
driver_num = (config[CFG_LOC_DRVA_NUM] & 0x1F) +
(config[CFG_LOC_DRVB_NUM] & 0x1F);
sensor_num = (config[CFG_LOC_SENS_NUM] & 0x0F) +
((config[CFG_LOC_SENS_NUM] >> 4) & 0x0F);
}
have_key = config[GTP_REG_HAVE_KEY - GTP_REG_CONFIG_DATA + 2] &
0x01; /* have key or not */
if (have_key == 1)
driver_num--;
GTP_INFO(
"Driver * Sensor: %d * %d(Key: %d), X_MAX = %d, Y_MAX = %d, TRIGGER = 0x%02x",
driver_num, sensor_num, have_key, abs_x_max, abs_y_max,
int_type);
} else
#endif
{
#ifdef CONFIG_GTP_DRIVER_SEND_CFG
ret = gtp_send_cfg(client);
if (ret < 0)
GTP_ERROR("Send config error.");
#ifdef CONFIG_GTP_COMPATIBLE_MODE
if (gtp_chip_type != CHIP_TYPE_GT9F) {
#else
{
#endif
/* for resume to send config */
if (flash_cfg_version < 90 &&
flash_cfg_version > drv_cfg_version) {
config[GTP_ADDR_LENGTH] = drv_cfg_version;
check_sum = 0;
for (i = GTP_ADDR_LENGTH; i < cfg_len; i++)
check_sum += config[i];
config[cfg_len] = (~check_sum) + 1;
}
}
#endif
GTP_INFO("X_MAX = %d, Y_MAX = %d, TRIGGER = 0x%02x", abs_x_max,
abs_y_max, int_type);
}
/* msleep(20); */
return 0;
out:
gtp_free_gpio_res();
return -1;
}
static s8 gtp_i2c_test(struct i2c_client *client)
{
u8 retry = 0;
s8 ret = -1;
u32 hw_info = 0;
GTP_DEBUG_FUNC();
while (retry++ < 5) {
ret = i2c_read_bytes(client, GTP_REG_HW_INFO, (u8 *)&hw_info,
sizeof(hw_info));
if ((!ret) && (hw_info == 0x00900600))
return ret;
GTP_ERROR("GTP_REG_HW_INFO : %08X", hw_info);
GTP_ERROR("GTP i2c test failed time %d.", retry);
msleep(20);
}
return -1;
}
void gtp_int_sync(s32 ms)
{
/* gtp_gpio_output(GTP_IRQ_GPIO, 0); */
msleep(ms);
gtp_gpio_input(GTP_IRQ_GPIO);
}
void gtp_reset_guitar(struct i2c_client *client, s32 ms)
{
GTP_INFO("GTP RESET!\n");
if (gtp_resetting)
return;
gtp_resetting = 1;
gtp_gpio_output(GTP_RST_GPIO, 0);
/* msleep(ms);*/
/* select client address */
/* gtp_gpio_output(GTP_IRQ_GPIO, client->addr == 0x14); */
/* msleep(20); */
gtp_gpio_output(GTP_RST_GPIO, 1);
/* msleep(20); must >= 6ms */
#ifdef CONFIG_GTP_COMPATIBLE_MODE
if (gtp_chip_type == CHIP_TYPE_GT9F) {
gtp_resetting = 0;
return;
}
#endif
gtp_int_sync(0);
#ifdef CONFIG_GTP_ESD_PROTECT
gtp_init_ext_watchdog(i2c_client_point);
#endif
gtp_resetting = 0;
}
static int tpd_power_on(struct i2c_client *client)
{
int ret = 0;
int reset_count = 0;
reset_proc:
/* gtp_gpio_output(GTP_IRQ_GPIO, 0); */
gtp_gpio_output(GTP_RST_GPIO, 0);
/* msleep(20); */
/* power on, need confirm with SA */
GTP_ERROR("turn on power reg-vgp6\n");
ret = regulator_enable(tpd->reg);
if (ret != 0)
TPD_DMESG("Failed to enable reg-vgp6: %d\n", ret);
gtp_reset_guitar(client, 20);
#ifdef CONFIG_GTP_COMPATIBLE_MODE
gtp_get_chip_type(client);
if (gtp_chip_type == CHIP_TYPE_GT9F) {
ret = gup_fw_download_proc(NULL, GTP_FL_FW_BURN);
if (ret == FAIL) {
GTP_ERROR("[%s]Download fw failed.", __func__);
if (reset_count++ < TPD_MAX_RESET_COUNT)
goto reset_proc;
else
return ret;
}
ret = gtp_fw_startup(client);
if (ret == FAIL) {
GTP_ERROR("[%s]Startup fw failed.", __func__);
if (reset_count++ < TPD_MAX_RESET_COUNT)
goto reset_proc;
else
return -1;
}
} else
#endif
{
ret = gtp_i2c_test(client);
if (ret < 0) {
GTP_ERROR("I2C communication ERROR!");
if (reset_count < TPD_MAX_RESET_COUNT) {
reset_count++;
goto reset_proc;
}
}
}
return ret;
}
#if defined(CONFIG_GTP_COMPATIBLE_MODE) || defined(CONFIG_GTP_HOTKNOT)
u8 gtp_fw_startup(struct i2c_client *client)
{
u8 wr_buf[4];
s32 ret = 0;
/* init sw WDT */
wr_buf[0] = 0xAA;
ret = i2c_write_bytes(client, 0x8041, wr_buf, 1);
if (ret < 0) {
GTP_ERROR("I2C error to firmware startup.");
return FAIL;
}
/* release SS51 & DSP */
wr_buf[0] = 0x00;
i2c_write_bytes(client, 0x4180, wr_buf, 1);
/* int sync */
gtp_int_sync(0);
/* check fw run status */
i2c_read_bytes(client, 0x8041, wr_buf, 1);
if (wr_buf[0] == 0xAA) {
GTP_ERROR("IC works abnormally,startup failed.");
return FAIL;
}
GTP_DEBUG("IC works normally,Startup success.");
wr_buf[0] = 0xAA;
i2c_write_bytes(client, 0x8041, wr_buf, 1);
return SUCCESS;
}
#endif
/* **************** For GT9XXF Start *********************/
#ifdef CONFIG_GTP_COMPATIBLE_MODE
void gtp_get_chip_type(struct i2c_client *client)
{
u8 opr_buf[10] = {0x00};
s32 ret = 0;
msleep(20);
ret = gtp_i2c_read_dbl_check(client, GTP_REG_CHIP_TYPE, opr_buf, 10);
if (ret == FAIL) {
GTP_ERROR(
"Failed to get chip-type, set chip type default: GOODIX_GT9");
gtp_chip_type = CHIP_TYPE_GT9;
return;
}
if (!memcmp(opr_buf, "GOODIX_GT9", 10)) {
GTP_INFO("Chip Type: %s", (gtp_chip_type == CHIP_TYPE_GT9)
? "GOODIX_GT9"
: "GOODIX_GT9F");
gtp_chip_type = CHIP_TYPE_GT9;
} else { /* GT9XXF */
gtp_chip_type = CHIP_TYPE_GT9F;
GTP_INFO("Chip Type: %s", (gtp_chip_type == CHIP_TYPE_GT9)
? "GOODIX_GT9"
: "GOODIX_GT9F");
}
gtp_chip_type = CHIP_TYPE_GT9; /* for test */
GTP_INFO("Chip Type: %s", (gtp_chip_type == CHIP_TYPE_GT9)
? "GOODIX_GT9"
: "GOODIX_GT9F");
}
static u8 gtp_bak_ref_proc(struct i2c_client *client, u8 mode)
{
s32 i = 0;
s32 j = 0;
s32 ret = 0;
struct file *flp = NULL;
u8 *refp = NULL;
u32 ref_len = 0;
u32 ref_seg_len = 0;
s32 ref_grps = 0;
s32 ref_chksum = 0;
u16 tmp = 0;
mm_segment_t old_fs;
GTP_DEBUG("[%s]Driver:%d,Sensor:%d.", __func__, driver_num,
sensor_num);
old_fs = get_fs();
set_fs(KERNEL_DS);
/* check file-system mounted */
GTP_DEBUG("[%s]Waiting for FS %d", __func__, gtp_ref_retries);
if (gup_check_fs_mounted("/data") == FAIL) {
GTP_DEBUG("[%s]/data not mounted", __func__);
if (gtp_ref_retries++ < GTP_CHK_FS_MNT_MAX) {
set_fs(old_fs);
return FAIL;
}
} else {
GTP_DEBUG("[%s]/data mounted !!!!", __func__);
}
if (!memcmp(&gtp_touch_fw[4], "950", 3)) {
ref_seg_len = (driver_num * (sensor_num - 1) + 2) * 2;
ref_grps = 6;
ref_len = ref_seg_len *
6; /* for GT950, backup-reference for six segments */
} else {
ref_len = driver_num * (sensor_num - 2) * 2 + 4;
ref_seg_len = ref_len;
ref_grps = 1;
}
refp = kzalloc(ref_len, GFP_KERNEL);
if (refp == NULL) {
GTP_ERROR(
"[%s]Alloc memory for ref failed.use default ref",
__func__);
set_fs(old_fs);
return FAIL;
}
memset(refp, 0, ref_len);
if (gtp_ref_retries >= GTP_CHK_FS_MNT_MAX) {
for (j = 0; j < ref_grps; ++j)
refp[ref_seg_len + j * ref_seg_len - 1] = 0x01;
ret = i2c_write_bytes(client, 0x99D0, refp, ref_len);
if (-1 == ret) {
GTP_ERROR("[%s]Write ref i2c error.", __func__);
ret = FAIL;
}
GTP_ERROR(
"[%s]Bak file or path is not exist,send default ref.",
__func__);
ret = SUCCESS;
goto exit_ref_proc;
}
/* get ref file data */
flp = filp_open(GTP_BAK_REF_PATH, O_RDWR | O_CREAT, 0666);
if (IS_ERR(flp)) {
GTP_ERROR(
"[%s]Ref File not found!Creat ref file.", __func__);
/* flp->f_op->llseek(flp, 0, SEEK_SET); */
/* flp->f_op->write(flp, (char *)refp, ref_len, &flp->f_pos); */
gtp_ref_retries++;
ret = FAIL;
goto exit_ref_proc;
} else if (mode == GTP_BAK_REF_SEND) {
flp->f_op->llseek(flp, 0, SEEK_SET);
ret = flp->f_op->read(flp, (char *)refp, ref_len, &flp->f_pos);
if (ret < 0) {
GTP_ERROR("[%s]Read ref file failed.", __func__);
memset(refp, 0, ref_len);
}
}
if (mode == GTP_BAK_REF_STORE) {
ret = i2c_read_bytes(client, 0x99D0, refp, ref_len);
if (-1 == ret) {
GTP_ERROR("[%s]Read ref i2c error.", __func__);
ret = FAIL;
goto exit_ref_proc;
}
flp->f_op->llseek(flp, 0, SEEK_SET);
flp->f_op->write(flp, (char *)refp, ref_len, &flp->f_pos);
} else {
/* checksum ref file */
for (j = 0; j < ref_grps; ++j) {
ref_chksum = 0;
for (i = 0; i < ref_seg_len - 2; i += 2)
ref_chksum +=
((refp[i + j * ref_seg_len] << 8) +
refp[i + 1 + j * ref_seg_len]);
GTP_DEBUG("[%s]Calc ref chksum:0x%04X", __func__,
ref_chksum & 0xFF);
tmp = ref_chksum +
(refp[ref_seg_len + j * ref_seg_len - 2] << 8) +
refp[ref_seg_len + j * ref_seg_len - 1];
if (tmp != 1) {
GTP_DEBUG(
"[%s]Ref file chksum error,use default ref",
__func__);
memset(&refp[j * ref_seg_len], 0, ref_seg_len);
refp[ref_seg_len - 1 + j * ref_seg_len] = 0x01;
} else {
if (j == (ref_grps - 1))
GTP_DEBUG(
"[%s]Ref file chksum success.",
__func__);
}
}
ret = i2c_write_bytes(client, 0x99D0, refp, ref_len);
if (ret == -1) {
GTP_ERROR("[%s]Write ref i2c error.", __func__);
ret = FAIL;
goto exit_ref_proc;
}
}
ret = SUCCESS;
exit_ref_proc:
kfree(refp);
set_fs(old_fs);
if (flp && !IS_ERR(flp))
filp_close(flp, NULL);
return ret;
}
static void gtp_recovery_reset(struct i2c_client *client)
{
mutex_lock(&i2c_access);
if (tpd_halt == 0) {
#ifdef CONFIG_GTP_ESD_PROTECT
gtp_esd_switch(client, SWITCH_OFF);
#endif
force_reset_guitar();
#ifdef CONFIG_GTP_ESD_PROTECT
gtp_esd_switch(client, SWITCH_ON);
#endif
}
mutex_unlock(&i2c_access);
}
static u8 gtp_check_clk_legality(void)
{
u8 i = 0;
u8 clk_chksum = gtp_clk_buf[5];
for (i = 0; i < 5; i++) {
if ((gtp_clk_buf[i] < 50) || (gtp_clk_buf[i] > 120) ||
(gtp_clk_buf[i] != gtp_clk_buf[0]))
break;
clk_chksum += gtp_clk_buf[i];
}
if ((i == 5) && (clk_chksum == 0)) {
GTP_INFO("Clk ram legality check success");
return SUCCESS;
}
GTP_ERROR("main clock freq in clock buf is wrong");
return FAIL;
}
static u8 gtp_main_clk_proc(struct i2c_client *client)
{
s32 ret = 0;
u8 i = 0;
u8 clk_cal_result = 0;
u8 clk_chksum = 0;
struct file *flp = NULL;
mm_segment_t old_fs1;
old_fs1 = get_fs();
set_fs(KERNEL_DS);
/* check clk legality */
ret = gtp_check_clk_legality();
if (ret == SUCCESS)
goto send_main_clk;
GTP_DEBUG("[%s]Waiting for FS %d", __func__,
gtp_ref_retries);
if (gup_check_fs_mounted("/data") == FAIL) {
GTP_DEBUG("[%s]/data not mounted", __func__);
if (gtp_clk_retries++ < GTP_CHK_FS_MNT_MAX) {
set_fs(old_fs1);
return FAIL;
}
GTP_ERROR(
"[%s]Wait for file system timeout,need cal clk",
__func__);
} else {
GTP_DEBUG("[%s]/data mounted !!!!", __func__);
flp = filp_open(GTP_MAIN_CLK_PATH, O_RDWR | O_CREAT, 0666);
if (!IS_ERR(flp)) {
flp->f_op->llseek(flp, 0, SEEK_SET);
ret = flp->f_op->read(flp, (char *)gtp_clk_buf, 6,
&flp->f_pos);
if (ret > 0) {
ret = gtp_check_clk_legality();
if (ret == SUCCESS) {
GTP_DEBUG(
"[%s]Open & read & check clk file success.",
__func__);
goto send_main_clk;
}
}
}
GTP_ERROR(
"[%s]Check clk file failed,need cal clk", __func__);
}
/* cal clk */
#ifdef CONFIG_GTP_ESD_PROTECT
gtp_esd_switch(client, SWITCH_OFF);
#endif
clk_cal_result = gup_clk_calibration();
force_reset_guitar();
GTP_DEBUG("clk cal result:%d", clk_cal_result);
#ifdef CONFIG_GTP_ESD_PROTECT
gtp_esd_switch(client, SWITCH_ON);
#endif
if (clk_cal_result < 50 || clk_cal_result > 120) {
GTP_ERROR("[%s]cal clk result is illegitimate", __func__);
ret = FAIL;
goto exit_clk_proc;
}
for (i = 0; i < 5; i++) {
gtp_clk_buf[i] = clk_cal_result;
clk_chksum += gtp_clk_buf[i];
}
gtp_clk_buf[5] = 0 - clk_chksum;
if (IS_ERR(flp)) {
flp = filp_open(GTP_MAIN_CLK_PATH, O_RDWR | O_CREAT, 0666);
} else {
flp->f_op->llseek(flp, 0, SEEK_SET);
flp->f_op->write(flp, (char *)gtp_clk_buf, 6, &flp->f_pos);
}
send_main_clk:
ret = i2c_write_bytes(client, 0x8020, gtp_clk_buf, 6);
if (-1 == ret) {
GTP_ERROR("[%s]send main clk i2c error!", __func__);
ret = FAIL;
goto exit_clk_proc;
}
ret = SUCCESS;
exit_clk_proc:
set_fs(old_fs1);
if (flp && !IS_ERR(flp))
filp_close(flp, NULL);
return ret;
}
#endif
/* ************* For GT9XXF End ***********************/
static const struct file_operations gt_upgrade_proc_fops = {
.write = gt91xx_config_write_proc, .read = gt91xx_config_read_proc};
static int tpd_irq_registration(void)
{
struct device_node *node = NULL;
unsigned long irqf_val = 0;
int ret = 0;
node = of_find_compatible_node(NULL, NULL, "mediatek,cap_touch");
if (node) {
/*touch_irq = gpio_to_irq(tpd_int_gpio); */
touch_irq = irq_of_parse_and_map(node, 0);
irqf_val = IRQF_TRIGGER_FALLING;
ret = request_irq(touch_irq, tpd_interrupt_handler, irqf_val,
TPD_DEVICE, NULL);
if (ret < 0) {
GTP_ERROR(
"tpd request_irq IRQ LINE NOT AVAILABLE!. ret is %d\n",
ret);
} else {
irq_enabled = true;
}
} else {
GTP_ERROR(
"[%s] tpd request_irq can not find touch eint device node!.",
__func__);
}
return ret;
}
static s32 tpd_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
#ifdef CONFIG_GTP_HAVE_TOUCH_KEY
s32 idx = 0;
#endif
s32 err = 0;
s32 ret = 0;
#ifdef CONFIG_GTP_PROXIMITY
struct hwmsen_object obj_ps;
#endif
i2c_client_point = client;
of_get_gt9xx_platform_data(&client->dev);
ret = regulator_enable(tpd->reg);
if (ret != 0)
TPD_DMESG("Failed to enable reg-vgp6: %d\n", ret);
ret = gtp_get_gpio_res();
if (ret < 0) {
GTP_ERROR("Failed to get gpio resources");
return ret;
}
gtp_reset_guitar(client, 20);
#if 0
ret = gtp_init_panel(client);
if (ret < 0)
GTP_ERROR("GTP init panel failed.");
#else
init_panel_thread = kthread_run(gtp_init_panel,
(void *)client, "gtp_init_panel");
if (IS_ERR(init_panel_thread)) {
err = PTR_ERR(init_panel_thread);
GTP_ERROR(TPD_DEVICE
" failed to create auto-update thread: %d\n", err);
}
#endif
GTP_DEBUG("gtp_init_panel success");
/* Create proc file system */
gt91xx_config_proc = proc_create(GT91XX_CONFIG_PROC_FILE, 0660, NULL,
&gt_upgrade_proc_fops);
if (gt91xx_config_proc == NULL) {
GTP_ERROR("create_proc_entry %s failed",
GT91XX_CONFIG_PROC_FILE);
}
#ifdef CONFIG_GTP_CREATE_WR_NODE
init_wr_node(client);
#endif
thread = kthread_run(touch_event_handler, 0, TPD_DEVICE);
if (IS_ERR(thread)) {
err = PTR_ERR(thread);
GTP_ERROR(TPD_DEVICE " failed to create kernel thread: %d",
err);
}
#ifdef CONFIG_GTP_HAVE_TOUCH_KEY
for (idx = 0; idx < GTP_MAX_KEY_NUM; idx++)
input_set_capability(tpd->dev, EV_KEY, touch_key_array[idx]);
#endif
#ifdef CONFIG_GTP_GESTURE_WAKEUP
gtp_extents_init();
input_set_capability(tpd->dev, EV_KEY, KEY_F2);
input_set_capability(tpd->dev, EV_KEY, KEY_F3);
#endif
#ifdef CONFIG_GTP_WITH_PEN
/* pen support */
__set_bit(BTN_TOOL_PEN, tpd->dev->keybit);
__set_bit(INPUT_PROP_DIRECT, tpd->dev->propbit);
#endif
/* msleep(50); */
tpd_irq_registration();
/*gtp_irq_enable(); */
#ifdef CONFIG_GTP_ESD_PROTECT
gtp_esd_switch(client, SWITCH_ON);
#endif
#ifdef CONFIG_GTP_AUTO_UPDATE
ret = gup_init_update_proc(client);
if (ret < 0)
GTP_ERROR("Create update thread error.");
#endif
#ifdef CONFIG_GTP_PROXIMITY
/* obj_ps.self = cm3623_obj; */
obj_ps.polling = 0; /* 0--interrupt mode;1--polling mode; */
obj_ps.sensor_operate = tpd_ps_operate;
err = hwmsen_attach(ID_PROXIMITY, &obj_ps);
if (err)
GTP_ERROR("hwmsen attach fail, return:%d.", err);
#endif
tpd_load_status = 1;
GTP_INFO("%s, success run Done", __func__);
return 0;
}
static irqreturn_t tpd_interrupt_handler(int irq, void *dev_id)
{
TPD_DEBUG_PRINT_INT;
if (irq_enabled) {
irq_enabled = false;
disable_irq_nosync(touch_irq);
}
tpd_flag = 1;
wake_up_interruptible(&waiter);
return IRQ_HANDLED;
}
static int tpd_i2c_remove(struct i2c_client *client)
{
#ifdef CONFIG_GTP_CREATE_WR_NODE
uninit_wr_node();
#endif
#ifdef CONFIG_GTP_GESTURE_WAKEUP
gtp_extents_exit();
#endif
#ifdef CONFIG_GTP_ESD_PROTECT
destroy_workqueue(gtp_workqueue);
#endif
gtp_free_gpio_res();
return 0;
}
#if (defined(CONFIG_GTP_ESD_PROTECT) || defined(CONFIG_GTP_COMPATIBLE_MODE))
void force_reset_guitar(void)
{
s32 i = 0;
s32 ret = 0;
if (gtp_resetting || (gtp_loading_fw == 1))
return;
GTP_INFO("force_reset_guitar");
gtp_irq_disable();
gtp_gpio_output(GTP_RST_GPIO, 0);
/* gtp_gpio_output(GTP_IRQ_GPIO, 0); */
/* Power off TP */
ret = regulator_disable(tpd->reg);
if (ret != 0)
TPD_DMESG("Failed to disable reg-vgp6: %d\n", ret);
else
TPD_DMESG("Failed to disable reg-vgp6: %d\n", ret);
msleep(30);
/* Power on TP */
ret = regulator_enable(tpd->reg);
if (ret != 0)
TPD_DMESG("Failed to enable reg-vgp6: %d\n", ret);
msleep(30);
for (i = 0; i < 5; i++) {
gtp_reset_guitar(i2c_client_point, 20);
#ifdef CONFIG_GTP_COMPATIBLE_MODE
if (gtp_chip_type == CHIP_TYPE_GT9F) {
/* check code ram */
ret = gup_fw_download_proc(NULL, GTP_FL_ESD_RECOVERY);
if (ret == FAIL) {
GTP_ERROR(
"[%s]Check & repair fw failed.",
__func__);
continue;
}
ret = gtp_fw_startup(i2c_client_point);
if (ret == FAIL) {
GTP_ERROR(
"[%s]Startup fw failed.", __func__);
continue;
}
} else
#endif
{
/* Send config */
ret = gtp_send_cfg(i2c_client_point);
if (ret < 0)
continue;
}
break;
}
gtp_irq_enable();
}
#endif
#ifdef CONFIG_GTP_ESD_PROTECT
static s32 gtp_init_ext_watchdog(struct i2c_client *client)
{
u8 opr_buffer[2] = {0xAA};
GTP_DEBUG("Init external watchdog.");
return i2c_write_bytes(client, 0x8041, opr_buffer, 1);
}
void gtp_esd_switch(struct i2c_client *client, s32 on)
{
spin_lock(&esd_lock);
if (on == SWITCH_ON) { /* switch on esd */
if (!esd_running) {
esd_running = 1;
spin_unlock(&esd_lock);
GTP_INFO("Esd started");
queue_delayed_work(gtp_workqueue, &gtp_esd_check_work,
clk_tick_cnt);
} else {
spin_unlock(&esd_lock);
}
} else { /* switch off esd */
if (esd_running) {
esd_running = 0;
spin_unlock(&esd_lock);
GTP_INFO("Esd cancelled");
cancel_delayed_work_sync(&gtp_esd_check_work);
} else {
spin_unlock(&esd_lock);
}
}
}
static void gtp_esd_check_func(struct work_struct *work)
{
s32 i = 0;
s32 ret = -1;
u8 esd_buf[3] = {0x00};
if (tpd_halt) {
GTP_INFO("Esd suspended!");
return;
}
if (gtp_loading_fw == 1) {
GTP_INFO("Load FW process is running");
return;
}
for (i = 0; i < 3; i++) {
ret = i2c_read_bytes_non_dma(i2c_client_point, 0x8040, esd_buf,
2);
GTP_DEBUG("[Esd]0x8040 = 0x%02X, 0x8041 = 0x%02X", esd_buf[0],
esd_buf[1]);
if (ret < 0) {
/* IIC communication problem */
continue;
} else {
if ((esd_buf[0] == 0xAA) || (esd_buf[1] != 0xAA)) {
u8 chk_buf[2] = {0x00};
i2c_read_bytes_non_dma(i2c_client_point, 0x8040,
chk_buf, 2);
GTP_DEBUG(
"[Check]0x8040 = 0x%02X, 0x8041 = 0x%02X",
chk_buf[0], chk_buf[1]);
if ((chk_buf[0] == 0xAA) ||
(chk_buf[1] != 0xAA)) {
i = 3; /* jump to reset guitar */
break;
}
continue;
} else {
/* IC works normally, Write 0x8040 0xAA, feed */
/* the watchdog */
esd_buf[0] = 0xAA;
i2c_write_bytes_non_dma(i2c_client_point,
0x8040, esd_buf, 1);
break;
}
}
}
if (i >= 3) {
#ifdef CONFIG_GTP_COMPATIBLE_MODE
if ((gtp_chip_type == CHIP_TYPE_GT9F) &&
(rqst_processing == 1)) {
GTP_INFO("Request Processing, no reset guitar.");
} else
#endif
{
GTP_INFO("IC works abnormally! Process reset guitar.");
memset(esd_buf, 0x01, sizeof(esd_buf));
i2c_write_bytes(i2c_client_point, 0x4226, esd_buf,
sizeof(esd_buf));
msleep(50);
force_reset_guitar();
}
}
if (!tpd_halt && esd_running)
queue_delayed_work(gtp_workqueue, &gtp_esd_check_work,
clk_tick_cnt);
else
GTP_INFO("Esd suspended!");
}
#endif
static int tpd_history_x = 0, tpd_history_y;
static void tpd_down(s32 x, s32 y, s32 size, s32 id)
{
#ifdef CONFIG_GTP_HEIGHT_WIDTH_ROTATE
y = y * 800 / 1280;
x = x * 1280 / 800;
#endif
if ((!size) && (!id)) {
input_report_abs(tpd->dev, ABS_MT_PRESSURE, 100);
input_report_abs(tpd->dev, ABS_MT_TOUCH_MAJOR, 100);
} else {
input_report_abs(tpd->dev, ABS_MT_PRESSURE, size);
input_report_abs(tpd->dev, ABS_MT_TOUCH_MAJOR, size);
/* track id Start 0 */
input_report_abs(tpd->dev, ABS_MT_TRACKING_ID, id);
}
input_report_key(tpd->dev, BTN_TOUCH, 1);
input_report_abs(tpd->dev, ABS_MT_POSITION_X, x);
input_report_abs(tpd->dev, ABS_MT_POSITION_Y, y);
input_mt_sync(tpd->dev);
TPD_DEBUG_SET_TIME;
TPD_EM_PRINT(x, y, x, y, id, 1);
tpd_history_x = x;
tpd_history_y = y;
}
static void tpd_up(s32 x, s32 y, s32 id)
{
/* input_report_abs(tpd->dev, ABS_MT_PRESSURE, 0); */
input_report_key(tpd->dev, BTN_TOUCH, 0);
/* input_report_abs(tpd->dev, ABS_MT_TOUCH_MAJOR, 0); */
input_mt_sync(tpd->dev);
TPD_DEBUG_SET_TIME;
TPD_EM_PRINT(tpd_history_x, tpd_history_y, tpd_history_x, tpd_history_y,
id, 0);
tpd_history_x = 0;
tpd_history_y = 0;
}
#ifdef CONFIG_GTP_CHARGER_DETECT
static void gtp_charger_switch(s32 dir_update)
{
u32 chr_status = 0;
u8 chr_cmd[3] = {0x80, 0x40};
static u8 chr_pluggedin;
int ret = 0;
#ifdef MT6573
chr_status = *(u32 *)CHR_CON0;
chr_status &= (1 << 13);
#else /* ( defined(MT6575) || defined(MT6577) || defined(MT6589) ) */
chr_status = upmu_is_chr_det();
#endif
if (chr_status) { /* charger plugged in */
if (!chr_pluggedin || dir_update) {
chr_cmd[2] = 6;
ret = gtp_i2c_write(i2c_client_point, chr_cmd, 3);
if (ret > 0) {
GTP_INFO("Update status for Charger Plugin");
if (gtp_send_chr_cfg(i2c_client_point) < 0)
GTP_ERROR(
"Send charger config failed.");
else
GTP_DEBUG("Send charger config.");
}
chr_pluggedin = 1;
}
} else { /* charger plugged out */
if (chr_pluggedin || dir_update) {
chr_cmd[2] = 7;
ret = gtp_i2c_write(i2c_client_point, chr_cmd, 3);
if (ret > 0) {
GTP_INFO("Update status for Charger Plugout");
if (gtp_send_cfg(i2c_client_point) < 0)
GTP_ERROR("Send normal config failed.");
else
GTP_DEBUG("Send normal config.");
}
chr_pluggedin = 0;
}
}
}
#endif
static int touch_event_handler(void *unused)
{
struct sched_param param = {.sched_priority = 4};
u8 end_cmd[3] = {GTP_READ_COOR_ADDR >> 8, GTP_READ_COOR_ADDR & 0xFF, 0};
u8 point_data[2 + 1 + 8 * GTP_MAX_TOUCH + 1] = {
GTP_READ_COOR_ADDR >> 8, GTP_READ_COOR_ADDR & 0xFF};
u8 touch_num = 0, finger = 0, key_value = 0, *coor_data = NULL;
static u8 pre_touch, pre_key;
#ifdef CONFIG_GTP_WITH_PEN
static u8 pre_pen;
#endif
s32 input_x = 0, input_y = 0, input_w = 0;
s32 id = 0, i = 0, ret = -1;
#ifdef CONFIG_HOTKNOT_BLOCK_RW
u8 hn_state_buf[10] = {(u8)(GTP_REG_HN_STATE >> 8),
(u8)(GTP_REG_HN_STATE & 0xFF), 0};
u8 hn_pxy_state = 0, hn_pxy_state_bak = 0;
u8 hn_paired_cnt = 0;
#endif
sched_setscheduler(current, SCHED_RR, &param);
do {
set_current_state(TASK_INTERRUPTIBLE);
if (tpd_eint_mode) {
wait_event_interruptible(waiter, tpd_flag != 0);
tpd_flag = 0;
} else {
msleep(tpd_polling_time);
}
set_current_state(TASK_RUNNING);
mutex_lock(&i2c_access);
#ifdef CONFIG_GTP_GESTURE_WAKEUP
if (gesture_data.enabled) {
ret = gesture_event_handler(tpd->dev);
GTP_DEBUG("Interrupt gesture event handled, ret = %d",
ret);
if (ret > 0) { /* event handled */
gtp_irq_enable();
mutex_unlock(&i2c_access);
continue;
}
}
#endif
if (tpd_halt || gtp_resetting || gtp_loading_fw) {
GTP_DEBUG("Interrupt exit,halt:%d,reset:%d,ld_fw:%d",
tpd_halt, gtp_resetting, gtp_loading_fw);
goto exit_unlock;
}
ret = gtp_i2c_read(i2c_client_point, point_data, 12);
if (ret < 0) {
GTP_ERROR("I2C transfer error. errno:%d\n ", ret);
goto exit_unlock;
}
finger = point_data[GTP_ADDR_LENGTH];
#ifdef CONFIG_GTP_COMPATIBLE_MODE
if ((finger == 0x00) && (gtp_chip_type == CHIP_TYPE_GT9F)) {
u8 rqst_data[3] = {(u8)(GTP_REG_RQST >> 8),
(u8)(GTP_REG_RQST & 0xFF), 0};
ret = gtp_i2c_read(i2c_client_point, rqst_data, 3);
if (ret < 0) {
GTP_ERROR("I2C transfer error. errno:%d\n ",
ret);
goto exit_unlock;
}
switch (rqst_data[2] & 0x0F) {
case GTP_RQST_BAK_REF:
GTP_INFO("Request Ref.");
ret = gtp_bak_ref_proc(i2c_client_point,
GTP_BAK_REF_SEND);
if (ret == SUCCESS) {
GTP_INFO("Send ref success.");
rqst_data[2] = GTP_RQST_RESPONDED;
gtp_i2c_write(i2c_client_point,
rqst_data, 3);
}
goto exit_work_func;
case GTP_RQST_CONFIG:
GTP_INFO("Request Config.");
ret = gtp_send_cfg(i2c_client_point);
if (ret < 0) {
GTP_ERROR("Send config error.");
} else {
GTP_INFO("Send config success.");
rqst_data[2] = GTP_RQST_RESPONDED;
gtp_i2c_write(i2c_client_point,
rqst_data, 3);
}
goto exit_work_func;
case GTP_RQST_MAIN_CLOCK:
GTP_INFO("Request main clock.");
rqst_processing = 1;
ret = gtp_main_clk_proc(i2c_client_point);
if (ret == SUCCESS) {
GTP_INFO("Send main clk success.");
rqst_data[2] = GTP_RQST_RESPONDED;
gtp_i2c_write(i2c_client_point,
rqst_data, 3);
rqst_processing = 0;
}
goto exit_work_func;
case GTP_RQST_RESET:
GTP_INFO("Request Reset.");
mutex_unlock(&i2c_access);
gtp_recovery_reset(i2c_client_point);
goto exit_work_func;
default:
break;
}
}
#endif
#ifdef CONFIG_GTP_HOTKNOT
if (finger == 0x00 && gtp_hotknot_enabled) {
u8 rqst_data[3] = {(u8)(GTP_REG_RQST >> 8),
(u8)(GTP_REG_RQST & 0xFF), 0};
ret = gtp_i2c_read(i2c_client_point, rqst_data, 3);
if (ret < 0) {
GTP_ERROR("I2C transfer error. errno:%d\n ",
ret);
goto exit_unlock;
}
if ((rqst_data[2] & 0x0F) == GTP_RQST_HOTKNOT_CODE) {
GTP_INFO("Request HotKnot Code.");
gup_load_hotknot_fw();
goto exit_unlock;
}
}
#endif
if ((finger & 0x80) == 0) {
#ifdef CONFIG_HOTKNOT_BLOCK_RW
if (!hotknot_paired_flag) {
#else
{
#endif
GTP_ERROR("buffer not ready");
goto exit_unlock;
}
}
#ifdef CONFIG_HOTKNOT_BLOCK_RW
if (!hotknot_paired_flag && (finger & 0x0F)) {
id = point_data[GTP_ADDR_LENGTH + 1];
hn_pxy_state = point_data[GTP_ADDR_LENGTH + 2] & 0x80;
hn_pxy_state_bak =
point_data[GTP_ADDR_LENGTH + 3] & 0x80;
if ((id == 32) && (hn_pxy_state == 0x80) &&
(hn_pxy_state_bak == 0x80)) {
#ifdef HN_DBLCFM_PAIRED
if (hn_paired_cnt++ < 2)
goto exit_work_func;
#endif
GTP_DEBUG("HotKnot paired!");
if (wait_hotknot_state & HN_DEVICE_PAIRED) {
GTP_DEBUG(
"INT wakeup HN_DEVICE_PAIRED block polling waiter");
got_hotknot_state |= HN_DEVICE_PAIRED;
wake_up_interruptible(&bp_waiter);
}
hotknot_paired_flag = 1;
goto exit_work_func;
} else {
got_hotknot_state &= (~HN_DEVICE_PAIRED);
hn_paired_cnt = 0;
}
}
if (hotknot_paired_flag) {
ret = gtp_i2c_read(i2c_client_point, hn_state_buf, 6);
if (ret < 0) {
GTP_ERROR("I2C transfer error. errno:%d\n ",
ret);
goto exit_unlock;
}
got_hotknot_state = 0;
GTP_DEBUG("[0xAB10~0xAB13]=0x%x,0x%x,0x%x,0x%x",
hn_state_buf[GTP_ADDR_LENGTH],
hn_state_buf[GTP_ADDR_LENGTH + 1],
hn_state_buf[GTP_ADDR_LENGTH + 2],
hn_state_buf[GTP_ADDR_LENGTH + 3]);
if (wait_hotknot_state & HN_MASTER_SEND) {
if ((hn_state_buf[GTP_ADDR_LENGTH] == 0x03) ||
(hn_state_buf[GTP_ADDR_LENGTH] == 0x04) ||
(hn_state_buf[GTP_ADDR_LENGTH] == 0x07)) {
GTP_DEBUG(
"Wakeup HN_MASTER_SEND block polling waiter");
got_hotknot_state |= HN_MASTER_SEND;
got_hotknot_extra_state =
hn_state_buf[GTP_ADDR_LENGTH];
wake_up_interruptible(&bp_waiter);
}
} else if (wait_hotknot_state & HN_SLAVE_RECEIVED) {
if ((hn_state_buf[GTP_ADDR_LENGTH + 1] ==
0x03) ||
(hn_state_buf[GTP_ADDR_LENGTH + 1] ==
0x04) ||
(hn_state_buf[GTP_ADDR_LENGTH + 1]) ==
0x07) {
GTP_DEBUG(
"Wakeup HN_SLAVE_RECEIVED block polling waiter:0x%x",
hn_state_buf[GTP_ADDR_LENGTH +
1]);
got_hotknot_state |= HN_SLAVE_RECEIVED;
got_hotknot_extra_state =
hn_state_buf[GTP_ADDR_LENGTH +
1];
wake_up_interruptible(&bp_waiter);
}
} else if (wait_hotknot_state & HN_MASTER_DEPARTED) {
if (hn_state_buf[GTP_ADDR_LENGTH] == 0x07) {
GTP_DEBUG(
"Wakeup HN_MASTER_DEPARTED block polling waiter");
got_hotknot_state |= HN_MASTER_DEPARTED;
wake_up_interruptible(&bp_waiter);
}
} else if (wait_hotknot_state & HN_SLAVE_DEPARTED) {
if (hn_state_buf[GTP_ADDR_LENGTH + 1] == 0x07) {
GTP_DEBUG(
"Wakeup HN_SLAVE_DEPARTED block polling waiter");
got_hotknot_state |= HN_SLAVE_DEPARTED;
wake_up_interruptible(&bp_waiter);
}
}
}
#endif
#ifdef CONFIG_GTP_PROXIMITY
if (tpd_proximity_flag == 1) {
struct hwm_sensor_data sensor_data;
u8 proximity_status = point_data[GTP_ADDR_LENGTH];
GTP_DEBUG("REG INDEX[0x814E]:0x%02X\n",
proximity_status);
/* proximity or large touch detect,enable hwm_sensor. */
if (proximity_status & 0x60)
tpd_proximity_detect = 0;
else
tpd_proximity_detect = 1;
/* get raw data */
GTP_DEBUG("PS change,PROXIMITY STATUS:0x%02X\n",
tpd_proximity_detect);
/* map and store data to hwm_sensor_data */
sensor_data.values[0] = tpd_get_ps_value();
sensor_data.value_divide = 1;
sensor_data.status = SENSOR_STATUS_ACCURACY_MEDIUM;
/* report to the up-layer */
ret = hwmsen_get_interrupt_data(ID_PROXIMITY,
&sensor_data);
if (ret)
GTP_ERROR(
"Call hwmsen_get_interrupt_data fail = %d\n",
ret);
}
#endif
touch_num = finger & 0x0f;
if (touch_num > GTP_MAX_TOUCH) {
GTP_ERROR("Bad number of fingers!");
goto exit_work_func;
}
if (touch_num > 1) {
u8 buf[8 * GTP_MAX_TOUCH] = {
(GTP_READ_COOR_ADDR + 10) >> 8,
(GTP_READ_COOR_ADDR + 10) & 0xff};
ret = gtp_i2c_read(i2c_client_point, buf,
2 + 8 * (touch_num - 1));
if (ret < 0)
goto exit_unlock;
memcpy(&point_data[12], &buf[2], 8 * (touch_num - 1));
}
#ifdef CONFIG_GTP_HAVE_TOUCH_KEY
key_value = point_data[3 + 8 * touch_num];
if (key_value || pre_key) {
for (i = 0; i < TPD_KEY_COUNT; i++) {
input_report_key(tpd->dev, touch_key_array[i],
key_value & (0x01 << i));
}
if ((pre_key != 0) && (key_value == 0))
tpd_up(0, 0, 0);
touch_num = 0;
pre_touch = 0;
}
#endif
pre_key = key_value;
GTP_DEBUG("pre_touch:%02x, finger:%02x.", pre_touch, finger);
if (touch_num) {
for (i = 0; i < touch_num; i++) {
coor_data = &point_data[i * 8 + 3];
if (coor_data[0] == 32)
goto exit_work_func;
id = coor_data[0] & 0x0F;
input_x = coor_data[1] | coor_data[2] << 8;
input_y = coor_data[3] | coor_data[4] << 8;
input_w = coor_data[5] | coor_data[6] << 8;
input_x = TPD_WARP_X(abs_x_max, input_x);
input_y = TPD_WARP_Y(abs_y_max, input_y);
#ifdef CONFIG_GTP_WITH_PEN
id = coor_data[0];
if ((id & 0x80)) { /* pen/stylus is activated */
GTP_DEBUG("Pen touch DOWN!");
input_report_key(tpd->dev, BTN_TOOL_PEN,
1);
pre_pen = 1;
id = 0;
}
#endif
GTP_DEBUG(" %d)(%d, %d)[%d]", id, input_x,
input_y, input_w);
tpd_down(input_x, input_y, input_w, id);
}
} else if (pre_touch) {
#ifdef CONFIG_GTP_WITH_PEN
if (pre_pen) {
GTP_DEBUG("Pen touch UP!");
input_report_key(tpd->dev, BTN_TOOL_PEN, 0);
pre_pen = 0;
}
#endif
GTP_DEBUG("Touch Release!");
tpd_up(0, 0, 0);
} else {
GTP_DEBUG("Additional Eint!");
}
pre_touch = touch_num;
if (tpd != NULL && tpd->dev != NULL)
input_sync(tpd->dev);
exit_work_func:
if (!gtp_rawdiff_mode) {
ret = gtp_i2c_write(i2c_client_point, end_cmd, 3);
if (ret < 0)
GTP_INFO("I2C write end_cmd error!");
}
exit_unlock:
gtp_irq_enable();
mutex_unlock(&i2c_access);
} while (!kthread_should_stop());
return 0;
}
static int tpd_local_init(void)
{
int retval;
#ifdef CONFIG_GTP_ESD_PROTECT
gtp_workqueue = create_workqueue("gtp-workqueue");
clk_tick_cnt =
2 * HZ; /* HZ: clock ticks in 1 second generated by system */
GTP_DEBUG("Clock ticks for an esd cycle: %d", clk_tick_cnt);
INIT_DELAYED_WORK(&gtp_esd_check_work, gtp_esd_check_func);
spin_lock_init(&esd_lock); /* 2.6.39 & later */
#endif
#ifdef CONFIG_GTP_CHARGER_DETECT
INIT_DELAYED_WORK(&gtp_charger_check_work, gtp_charger_check_func);
#endif
#ifdef CONFIG_GTP_SUPPORT_I2C_DMA
gpDMABuf_va = (u8 *)dma_alloc_coherent(
NULL, GTP_DMA_MAX_TRANSACTION_LENGTH, &gpDMABuf_pa, GFP_KERNEL);
if (!gpDMABuf_va)
GTP_INFO("[Error] Allocate DMA I2C Buffer failed!\n");
memset(gpDMABuf_va, 0, GTP_DMA_MAX_TRANSACTION_LENGTH);
#endif
tpd->reg = regulator_get(tpd->tpd_dev, "vtouch");
gtp_gpio_output(GTP_RST_GPIO, 0);
msleep(20);
retval = regulator_set_voltage(tpd->reg, 2800000, 3300000);
if (retval != 0) {
TPD_DMESG("Failed to set voltage: %d\n", retval);
return -1;
}
if (i2c_add_driver(&tpd_i2c_driver) != 0) {
GTP_INFO("unable to add i2c driver.");
return -1;
}
if (tpd_load_status == 0) {
GTP_INFO("add error touch panel driver.");
i2c_del_driver(&tpd_i2c_driver);
return -1;
}
input_set_abs_params(tpd->dev, ABS_MT_TRACKING_ID, 0,
(GTP_MAX_TOUCH - 1), 0, 0);
if (tpd_dts_data.use_tpd_button) {
/*initialize tpd button data */
tpd_button_setting(tpd_dts_data.tpd_key_num,
tpd_dts_data.tpd_key_local,
tpd_dts_data.tpd_key_dim_local);
}
#if (defined(TPD_WARP_START) && defined(TPD_WARP_END))
TPD_DO_WARP = 1;
memcpy(tpd_wb_start, tpd_wb_start_local, TPD_WARP_CNT * 4);
memcpy(tpd_wb_end, tpd_wb_start_local, TPD_WARP_CNT * 4);
#endif
#if (defined(TPD_HAVE_CALIBRATION) && !defined(TPD_CUSTOM_CALIBRATION))
memcpy(tpd_calmat, tpd_def_calmat_local, 8 * 4);
memcpy(tpd_def_calmat, tpd_def_calmat_local, 8 * 4);
#endif
/* set vendor string */
tpd->dev->id.vendor = 0x00;
tpd->dev->id.product = tpd_info.pid;
tpd->dev->id.version = tpd_info.vid;
GTP_INFO("end %s, %d", __func__, __LINE__);
tpd_type_cap = 1;
return 0;
}
/* Function to manage low power suspend */
static void tpd_suspend(struct device *h)
{
GTP_INFO("System suspend.");
mutex_lock(&i2c_access);
tpd_off();
mutex_unlock(&i2c_access);
#if 0
#ifdef CONFIG_GTP_PROXIMITY
if (tpd_proximity_flag == 1)
return;
#endif
#ifdef CONFIG_GTP_HOTKNOT
if (gtp_hotknot_enabled) {
u8 buf[3] = { 0x81, 0xaa, 0 };
#ifdef CONFIG_HOTKNOT_BLOCK_RW
if (hotknot_paired_flag)
return;
#endif
/* check hotknot pair state */
gtp_i2c_read(i2c_client_point, buf, sizeof(buf));
if (buf[2] == 0x55) {
GTP_INFO("GTP early suspend pair success");
return;
}
}
#endif
tpd_halt = 1;
mutex_lock(&i2c_access);
gtp_irq_disable();
#ifdef CONFIG_GTP_ESD_PROTECT
gtp_esd_switch(i2c_client_point, SWITCH_OFF);
#endif
#ifdef CONFIG_GTP_CHARGER_DETECT
cancel_delayed_work_sync(&gtp_charger_check_work);
#endif
#ifdef CONFIG_GTP_GESTURE_WAKEUP
if (gesture_data.enabled) {
ret = gtp_enter_doze();
gtp_irq_enable();
enable_irq_wake(touch_irq);
} else {
#else
{
#endif
ret = gtp_enter_sleep(i2c_client_point);
if (ret < 0)
GTP_ERROR("GTP early suspend failed.");
}
mutex_unlock(&i2c_access);
msleep(58);
#endif
}
/* Function to manage power-on resume */
static void tpd_resume(struct device *h)
{
int ret;
GTP_INFO("System resume.");
mutex_lock(&i2c_access);
tpd_halt = 0;
ret = regulator_enable(tpd->reg);
if (ret != 0)
TPD_DMESG("Failed to enable reg-vgp6: %d\n", ret);
gtp_irq_enable();
mutex_unlock(&i2c_access);
#if 0
#ifdef CONFIG_GTP_PROXIMITY
if (tpd_proximity_flag == 1)
return;
#endif
#ifdef CONFIG_HOTKNOT_BLOCK_RW
if (hotknot_paired_flag) {
hotknot_paired_flag = 0;
return;
}
#endif
if (gtp_loading_fw) {
GTP_INFO("Loading fw, abort resume");
return;
}
mutex_lock(&i2c_access);
ret = gtp_wakeup_sleep(i2c_client_point);
if (ret < 0)
GTP_ERROR("GTP later resume failed.");
#ifdef CONFIG_GTP_HOTKNOT
if (!gtp_hotknot_enabled) {
u8 exit_slave_cmd = 0x28;
GTP_DEBUG("hotknot is disabled,exit slave mode.");
i2c_write_bytes_non_dma(i2c_client_point, 0x8046,
&exit_slave_cmd, 1);
i2c_write_bytes_non_dma(i2c_client_point, 0x8040,
&exit_slave_cmd, 1);
}
#endif
#ifndef CONFIG_GTP_GESTURE_WAKEUP
gtp_irq_enable();
#endif
#ifdef CONFIG_GTP_ESD_PROTECT
gtp_esd_switch(i2c_client_point, SWITCH_ON);
#endif
#ifdef CONFIG_GTP_CHARGER_DETECT
gtp_charger_switch(1); /* force update */
queue_delayed_work(gtp_workqueue, &gtp_charger_check_work,
clk_tick_cnt);
#endif
mutex_unlock(&i2c_access);
tpd_halt = 0;
#endif
}
static struct tpd_driver_t tpd_device_driver = {
.tpd_device_name = "gt9xx",
.tpd_local_init = tpd_local_init,
.suspend = tpd_suspend,
.resume = tpd_resume,
};
static void tpd_off(void)
{
int ret;
ret = regulator_disable(tpd->reg);
if (ret != 0)
TPD_DMESG("Failed to disable reg-vgp6: %d\n", ret);
GTP_INFO("GTP enter sleep!");
tpd_halt = 1;
gtp_irq_disable();
}
static void tpd_on(void)
{
s32 ret = -1, retry = 0;
while (retry++ < 5) {
ret = tpd_power_on(i2c_client_point);
if (ret < 0)
GTP_ERROR("I2C Power on ERROR!");
ret = gtp_send_cfg(i2c_client_point);
if (ret > 0)
GTP_DEBUG("Wakeup sleep send config success.");
}
if (ret < 0)
GTP_ERROR("GTP later resume failed.");
gtp_irq_enable();
tpd_halt = 0;
}
/* called when loaded into kernel */
static int __init tpd_driver_init(void)
{
GTP_INFO("GT9 series touch panel driver init");
tpd_get_dts_info();
if (tpd_driver_add(&tpd_device_driver) < 0)
GTP_INFO("add generic driver failed");
return 0;
}
/* should never be called */
static void __exit tpd_driver_exit(void)
{
GTP_INFO("GT9 series touch panel driver exit");
tpd_driver_remove(&tpd_device_driver);
}
module_init(tpd_driver_init);
module_exit(tpd_driver_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("GT9 Series Touch Panel Driver");
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