input: touchscreen: Code clean-up for Goodix driver (f936c443) · Commits · e / devices / android_kernel_sony_msm8998

drivers/input/touchscreen/gt9xx/goodix_tool.c

+205 −212

Original line number	Diff line number	Diff line
		@@ -23,16 +23,15 @@

		#include "gt9xx.h"
		#include <linux/mutex.h>
		#include <linux/proc_fs.h>
		#include <linux/debugfs.h>

		#define DATA_LENGTH_UINT 512
		#define CMD_HEAD_LENGTH (sizeof(st_cmd_head) - sizeof(u8 *))
		#define CMD_HEAD_LENGTH (sizeof(struct st_cmd_head) - sizeof(u8 *))
		static char procname[20] = {0};

		#define UPDATE_FUNCTIONS

		#pragma pack(1)
		struct {
		u8 wr; /* write read flag0:R 1:W 2:PID 3: */
		struct st_cmd_head {
		u8 wr; /* write read flag 0:R 1:W 2:PID 3: */
		u8 flag; /* 0:no need flag/int 1: need flag 2:need int */
		u8 flag_addr[2];/* flag address */
		u8 flag_val; /* flag val */
		@@ -46,9 +45,9 @@ struct {
		u8 addr[2]; /* address */
		u8 res[3]; /* reserved */
		u8 data; / data pointer */
		} st_cmd_head;
		#pragma pack()
		st_cmd_head cmd_head;
		} __packed;

		static struct st_cmd_head cmd_head;

		static struct i2c_client *gt_client;

		@@ -56,15 +55,11 @@ static struct proc_dir_entry *goodix_proc_entry;

		static struct mutex lock;

		static s32 goodix_tool_write(struct file filp, const char __user buff,
		unsigned long len, void *data);
		static s32 goodix_tool_read(char page, char *start, off_t off, int count,
		int eof, void data);
		static s32 (tool_i2c_read)(u8 , u16);
		static s32 (tool_i2c_write)(u8 , u16);

		s32 DATA_LENGTH;
		s8 IC_TYPE[16] = {0};
		s32 data_length;
		s8 ic_type[16] = {0};

		static void tool_set_proc_name(char *procname)
		{
		@@ -113,7 +108,7 @@ static s32 tool_i2c_read_no_extra(u8 *buf, u16 len)
		}

		if (i == cmd_head.retry) {
		dev_err(&client->dev, "I2C read retry limit over.\n");
		dev_err(&gt_client->dev, "I2C read retry limit over\n");
		ret = -EIO;
		}

		@@ -138,7 +133,7 @@ static s32 tool_i2c_write_no_extra(u8 *buf, u16 len)
		}

		if (i == cmd_head.retry) {
		dev_err(&client->dev, "I2C write retry limit over.\n");
		dev_err(&gt_client->dev, "I2C write retry limit over\n");
		ret = -EIO;
		}

		@@ -173,17 +168,17 @@ static s32 tool_i2c_write_with_extra(u8 *buf, u16 len)

		static void register_i2c_func(void)
		{
		if (strcmp(IC_TYPE, "GT8110") && strcmp(IC_TYPE, "GT8105")
		&& strcmp(IC_TYPE, "GT801") && strcmp(IC_TYPE, "GT800")
		&& strcmp(IC_TYPE, "GT801PLUS") && strcmp(IC_TYPE, "GT811")
		&& strcmp(IC_TYPE, "GTxxx")) {
		if (strcmp(ic_type, "GT8110") && strcmp(ic_type, "GT8105")
		&& strcmp(ic_type, "GT801") && strcmp(ic_type, "GT800")
		&& strcmp(ic_type, "GT801PLUS") && strcmp(ic_type, "GT811")
		&& strcmp(ic_type, "GTxxx")) {
		tool_i2c_read = tool_i2c_read_with_extra;
		tool_i2c_write = tool_i2c_write_with_extra;
		pr_debug("I2C function: with pre and end cmd!\n");
		pr_debug("I2C function: with pre and end cmd\n");
		} else {
		tool_i2c_read = tool_i2c_read_no_extra;
		tool_i2c_write = tool_i2c_write_no_extra;
		pr_info("I2C function: without pre and end cmd!\n");
		pr_info("I2C function: without pre and end cmd\n");
		}
		}

		@@ -191,57 +186,14 @@ static void unregister_i2c_func(void)
		{
		tool_i2c_read = NULL;
		tool_i2c_write = NULL;
		pr_info("I2C function: unregister i2c transfer function!\n");
		}

		s32 init_wr_node(struct i2c_client *client)
		{
		u8 i;

		gt_client = client;
		memset(&cmd_head, 0, sizeof(cmd_head));
		cmd_head.data = NULL;

		i = 5;
		while ((!cmd_head.data) && i) {
		cmd_head.data = devm_kzalloc(&client->dev,
		i * DATA_LENGTH_UINT, GFP_KERNEL);
		if (cmd_head.data)
		break;
		i--;
		}
		if (i) {
		DATA_LENGTH = i * DATA_LENGTH_UINT;
		dev_dbg(&client->dev, "Applied memory size:%d.", DATA_LENGTH);
		} else {
		pr_err("Apply for memory failed.\n");
		return FAIL;
		}

		cmd_head.addr_len = 2;
		cmd_head.retry = 5;

		register_i2c_func();

		mutex_init(&lock);
		tool_set_proc_name(procname);
		goodix_proc_entry = create_proc_entry(procname, 0660, NULL);
		if (goodix_proc_entry == NULL) {
		pr_err("Couldn't create proc entry!\n");
		return FAIL;
		}
		GTP_INFO("Create proc entry success!");
		goodix_proc_entry->write_proc = goodix_tool_write;
		dix_proc_entry->read_proc = goodix_tool_read;

		return SUCCESS;
		pr_info("I2C function: unregister i2c transfer function\n");
		}

		void uninit_wr_node(void)
		{
		cmd_head.data = NULL;
		unregister_i2c_func();
		remove_proc_entry(procname, NULL);
		proc_remove(goodix_proc_entry);
		}

		static u8 relation(u8 src, u8 dst, u8 rlt)
		@@ -256,7 +208,7 @@ static u8 relation(u8 src, u8 dst, u8 rlt)

		case 1:
		ret = (src == dst) ? true : false;
		pr_debug("equal:src:0x%02x dst:0x%02x ret:%d.\n",
		pr_debug("equal:src:0x%02x dst:0x%02x ret:%d\n",
		src, dst, (s32)ret);
		break;

		@@ -298,23 +250,18 @@ static u8 comfirm(void)
		s32 i = 0;
		u8 buf[32];

		/* memcpy(&buf[GTP_ADDR_LENGTH - cmd_head.addr_len],
		* &cmd_head.flag_addr, cmd_head.addr_len);
		* memcpy(buf, &cmd_head.flag_addr, cmd_head.addr_len);
		* //Modified by Scott, 2012-02-17
		*/
		memcpy(buf, cmd_head.flag_addr, cmd_head.addr_len);

		for (i = 0; i < cmd_head.times; i++) {
		if (tool_i2c_read(buf, 1) <= 0) {
		pr_err("Read flag data failed!\n");
		dev_err(&gt_client->dev, "Read flag data failed");
		return FAIL;
		}
		if (true == relation(buf[GTP_ADDR_LENGTH], cmd_head.flag_val,
		cmd_head.flag_relation)) {
		pr_debug("value at flag addr:0x%02x.\n",
		pr_debug("value at flag addr:0x%02x\n",
		buf[GTP_ADDR_LENGTH]);
		pr_debug("flag value:0x%02x.\n", cmd_head.flag_val);
		pr_debug("flag value:0x%02x\n", cmd_head.flag_val);
		break;
		}

		@@ -322,89 +269,99 @@ static u8 comfirm(void)
		}

		if (i >= cmd_head.times) {
		pr_debug("Didn't get the flag to continue!\n");
		dev_err(&gt_client->dev, "Didn't get the flag to continue");
		return FAIL;
		}

		return SUCCESS;
		}

		/********************************************************
		#ifdef CONFIG_GT9XX_TOUCHPANEL_UPDATE
		static s32 fill_update_info(char __user *user_buf,
		size_t count, loff_t *ppos)
		{
		u8 buf[4];

		buf[0] = show_len >> 8;
		buf[1] = show_len & 0xff;
		buf[2] = total_len >> 8;
		buf[3] = total_len & 0xff;
		return simple_read_from_buffer(user_buf, count, ppos,
		buf, sizeof(buf));
		}
		#else
		static s32 fill_update_info(char __user *user_buf,
		size_t count, loff_t *ppos)
		{
		return -ENODEV;
		}
		#endif

		/*
		* Function:
		* Goodix tool write function.
		* Input:
		* standard proc write function param.
		* Output:
		* Return write length.
		*******************************************************
		*/
		static s32 goodix_tool_write(struct file filp, const char __user buff,
		unsigned long len, void *data)
		static s32 goodix_tool_write(struct file filp, const char __user userbuf,
		size_t count, loff_t *ppos)
		{
		s32 ret = 0;

		mutex_lock(&lock);
		ret = copy_from_user(&cmd_head, buff, CMD_HEAD_LENGTH);
		ret = copy_from_user(&cmd_head, userbuf, CMD_HEAD_LENGTH);
		if (ret) {
		pr_err("copy_from_user failed.\n");
		ret = -EACCES;
		dev_err(&gt_client->dev, "copy_from_user failed");
		ret = -EFAULT;
		goto exit;
		}

		pr_debug("wr :0x%02x.\n", cmd_head.wr);
		pr_debug("flag:0x%02x.\n", cmd_head.flag);
		pr_debug("flag addr:0x%02x%02x.\n", cmd_head.flag_addr[0],
		cmd_head.flag_addr[1]);
		pr_debug("flag val:0x%02x.\n", cmd_head.flag_val);
		pr_debug("flag rel:0x%02x.\n", cmd_head.flag_relation);
		pr_debug("circle :%d.\n", (s32)cmd_head.circle);
		pr_debug("times :%d.\n", (s32)cmd_head.times);
		pr_debug("retry :%d.\n", (s32)cmd_head.retry);
		pr_debug("delay :%d.\n", (s32)cmd_head.delay);
		pr_debug("data len:%d.\n", (s32)cmd_head.data_len);
		pr_debug("addr len:%d.\n", (s32)cmd_head.addr_len);
		pr_debug("addr:0x%02x%02x.\n", cmd_head.addr[0], cmd_head.addr[1]);
		pr_debug("len:%d.\n", (s32)len);
		pr_debug("buf[20]:0x%02x.\n", buff[CMD_HEAD_LENGTH]);

		if (cmd_head.data_len > (DATA_LENGTH - GTP_ADDR_LENGTH)) {
		pr_debug("data len %d > data buff %d, rejected!\n",
		cmd_head.data_len, (DATA_LENGTH - GTP_ADDR_LENGTH));
		ret = -EINVAL;
		goto exit;
		}
		if (cmd_head.addr_len > GTP_ADDR_LENGTH) {
		pr_debug(" addr len %d > data buff %d, rejected!\n",
		cmd_head.addr_len, GTP_ADDR_LENGTH);
		dev_dbg(&gt_client->dev, "wr:0x%02x, flag:0x%02x, flag addr:0x%02x%02x,
		flag val:0x%02x, flag rel:0x%02x,", cmd_headd.wr,
		cmd_head.flag, cmd_head.flag_addr[0],
		cmd_head.flag_addr[1], cmd_head.flag_val,
		cmd_head.flag_relation);
		dev_dbg(&gt_client->dev, "circle:%d, times:%d, retry:%d, delay:%d,
		data len:%d, addr len:%d, addr:0x%02x%02x, write len: %d",
		(s32)cmd_head.circle, (s32)cmd_head.times, (s32)cmd_head.retry,
		(s32)cmd_head.delay, (s32)cmd_head.data_len,
		(s32)cmd_head.addr_len, cmd_head.addr[0], cmd_head.addr[1],
		(s32)count);

		if (cmd_head.data_len > (data_length - GTP_ADDR_LENGTH)) {
		dev_err(&gt_client->dev, "data len %d > data buff %d, rejected\n",
		cmd_head.data_len, (data_length - GTP_ADDR_LENGTH));
		ret = -EINVAL;
		goto exit;
		}

		if (cmd_head.wr == 1) {
		/* copy_from_user(&cmd_head.data[cmd_head.addr_len],
		* &buff[CMD_HEAD_LENGTH], cmd_head.data_len);
		*/
		if (cmd_head.wr == GTP_RW_WRITE) {
		ret = copy_from_user(&cmd_head.data[GTP_ADDR_LENGTH],
		&buff[CMD_HEAD_LENGTH], cmd_head.data_len);
		if (ret)
		pr_err("copy_from_user failed.\n");
		&userbuf[CMD_HEAD_LENGTH], cmd_head.data_len);
		if (ret) {
		dev_err(&gt_client->dev, "copy_from_user failed");
		ret = -EFAULT;
		goto exit;
		}

		memcpy(&cmd_head.data[GTP_ADDR_LENGTH - cmd_head.addr_len],
		cmd_head.addr, cmd_head.addr_len);

		if (cmd_head.flag == 1) {
		if (cmd_head.flag == GTP_NEED_FLAG) {
		if (comfirm() == FAIL) {
		pr_err("[WRITE]Comfirm fail!\n");
		dev_err(&gt_client->dev, "Confirm fail");
		ret = -EINVAL;
		goto exit;
		}
		} else if (cmd_head.flag == 2) {
		} else if (cmd_head.flag == GTP_NEED_INTERRUPT) {
		/* Need interrupt! */
		}
		if (tool_i2c_write(
		&cmd_head.data[GTP_ADDR_LENGTH - cmd_head.addr_len],
		cmd_head.data_len + cmd_head.addr_len) <= 0) {
		pr_err("[WRITE]Write data failed!\n");
		dev_err(&gt_client->dev, "Write data failed");
		ret = -EIO;
		goto exit;
		}
		@@ -414,32 +371,33 @@ static s32 goodix_tool_write(struct file filp, const char __user buff,

		ret = cmd_head.data_len + CMD_HEAD_LENGTH;
		goto exit;
		} else if (cmd_head.wr == 3) { /* Write ic type */

		ret = copy_from_user(&cmd_head.data[0], &buff[CMD_HEAD_LENGTH],
		} else if (cmd_head.wr == GTP_RW_WRITE_IC_TYPE) { /* Write ic type */
		ret = copy_from_user(&cmd_head.data[0],
		&userbuf[CMD_HEAD_LENGTH],
		cmd_head.data_len);
		if (ret)
		pr_err("copy_from_user failed.\n");
		if (ret) {
		dev_err(&gt_client->dev, "copy_from_user failed");
		ret = -EFAULT;
		goto exit;
		}

		if (cmd_head.data_len > sizeof(IC_TYPE)) {
		pr_debug("<<-GTP->> data len %d > data buff %d, rejected!\n",
		cmd_head.data_len, sizeof(IC_TYPE));
		if (cmd_head.data_len > sizeof(ic_type)) {
		dev_err(&gt_client->dev,
		"data len %d > data buff %d, rejected\n",
		cmd_head.data_len, sizeof(ic_type));
		ret = -EINVAL;
		goto exit;
		}
		memcpy(IC_TYPE, cmd_head.data, cmd_head.data_len);
		memcpy(ic_type, cmd_head.data, cmd_head.data_len);

		register_i2c_func();

		ret = cmd_head.data_len + CMD_HEAD_LENGTH;
		goto exit;
		} else if (cmd_head.wr == 5) {

		/* memcpy(IC_TYPE, cmd_head.data, cmd_head.data_len); */

		} else if (cmd_head.wr == GTP_RW_NO_WRITE) {
		ret = cmd_head.data_len + CMD_HEAD_LENGTH;
		goto exit;
		} else if (cmd_head.wr == 7) { /* disable irq! */
		} else if (cmd_head.wr == GTP_RW_DISABLE_IRQ) { /* disable irq! */
		gtp_irq_disable(i2c_get_clientdata(gt_client));

		#if GTP_ESD_PROTECT
		@@ -447,7 +405,7 @@ static s32 goodix_tool_write(struct file filp, const char __user buff,
		#endif
		ret = CMD_HEAD_LENGTH;
		goto exit;
		} else if (cmd_head.wr == 9) { /* enable irq! */
		} else if (cmd_head.wr == GTP_RW_ENABLE_IRQ) { /* enable irq! */
		gtp_irq_enable(i2c_get_clientdata(gt_client));

		#if GTP_ESD_PROTECT
		@@ -455,41 +413,45 @@ static s32 goodix_tool_write(struct file filp, const char __user buff,
		#endif
		ret = CMD_HEAD_LENGTH;
		goto exit;
		} else if (cmd_head.wr == 17) {
		} else if (cmd_head.wr == GTP_RW_CHECK_RAWDIFF_MODE) {
		struct goodix_ts_data *ts = i2c_get_clientdata(gt_client);

		ret = copy_from_user(&cmd_head.data[GTP_ADDR_LENGTH],
		&buff[CMD_HEAD_LENGTH], cmd_head.data_len);
		if (ret)
		pr_debug("copy_from_user failed.\n");
		&userbuf[CMD_HEAD_LENGTH], cmd_head.data_len);
		if (ret) {
		dev_err(&gt_client->dev, "copy_from_user failed");
		goto exit;
		}
		if (cmd_head.data[GTP_ADDR_LENGTH]) {
		pr_debug("gtp enter rawdiff.\n");
		pr_debug("gtp enter rawdiff\n");
		ts->gtp_rawdiff_mode = true;
		} else {
		ts->gtp_rawdiff_mode = false;
		pr_debug("gtp leave rawdiff.\n");
		pr_debug("gtp leave rawdiff\n");
		}
		ret = CMD_HEAD_LENGTH;
		goto exit;
		}
		#ifdef UPDATE_FUNCTIONS
		else if (cmd_head.wr == 11) { /* Enter update mode! */
		if (gup_enter_update_mode(gt_client) == FAIL)
		} else if (cmd_head.wr == GTP_RW_ENTER_UPDATE_MODE) {
		/* Enter update mode! */
		if (gup_enter_update_mode(gt_client) == FAIL) {
		ret = -EBUSY;
		goto exit;
		} else if (cmd_head.wr == 13) { /* Leave update mode! */
		gup_leave_update_mode();
		} else if (cmd_head.wr == 15) { /* Update firmware! */
		}
		} else if (cmd_head.wr == GTP_RW_LEAVE_UPDATE_MODE) {
		/* Leave update mode! */
		gup_leave_update_mode(gt_client);
		} else if (cmd_head.wr == GTP_RW_UPDATE_FW) {
		/* Update firmware! */
		show_len = 0;
		total_len = 0;
		if (cmd_head.data_len + 1 > DATA_LENGTH) {
		pr_debug("<<-GTP->> data len %d > data buff %d, rejected!\n",
		cmd_head.data_len + 1, DATA_LENGTH);
		if (cmd_head.data_len + 1 > data_length) {
		dev_err(&gt_client->dev, "data len %d > data buff %d, rejected\n",
		cmd_head.data_len + 1, data_length);
		ret = -EINVAL;
		goto exit;
		}
		memset(cmd_head.data, 0, cmd_head.data_len + 1);
		memcpy(cmd_head.data, &buff[CMD_HEAD_LENGTH],
		memcpy(cmd_head.data, &userbuf[CMD_HEAD_LENGTH],
		cmd_head.data_len);

		if (gup_update_proc((void *)cmd_head.data) == FAIL) {
		@@ -497,7 +459,6 @@ static s32 goodix_tool_write(struct file filp, const char __user buff,
		goto exit;
		}
		}
		#endif
		ret = CMD_HEAD_LENGTH;

		exit:
		@@ -505,37 +466,37 @@ exit:
		return ret;
		}

		/*******************************************************
		/*
		* Function:
		* Goodix tool read function.
		* Input:
		* standard proc read function param.
		* Output:
		* Return read length.
		*******************************************************
		*/
		static s32 goodix_tool_read(char page, char *start, off_t off, int count,
		int eof, void data)
		static s32 goodix_tool_read(struct file file, char __user user_buf,
		size_t count, loff_t *ppos)
		{
		u16 data_len = 0;
		s32 ret;
		u8 buf[32];

		mutex_lock(&lock);
		if (cmd_head.wr % 2) {
		pr_err("<< [READ]command head wrong\n");
		if (cmd_head.wr & 0x1) {
		dev_err(&gt_client->dev, "command head wrong\n");
		ret = -EINVAL;
		goto exit;
		} else if (!cmd_head.wr) {
		u16 len = 0;
		s16 data_len = 0;
		u16 loc = 0;
		}

		if (cmd_head.flag == 1) {
		switch (cmd_head.wr) {
		case GTP_RW_READ:
		if (cmd_head.flag == GTP_NEED_FLAG) {
		if (comfirm() == FAIL) {
		pr_err("[READ]Comfirm fail!\n");
		dev_err(&gt_client->dev, "Confirm fail");
		ret = -EINVAL;
		goto exit;
		}
		} else if (cmd_head.flag == 2) {
		} else if (cmd_head.flag == GTP_NEED_INTERRUPT) {
		/* Need interrupt! */
		}

		@@ -550,54 +511,86 @@ static s32 goodix_tool_read(char page, char *start, off_t off, int count,
		msleep(cmd_head.delay);

		data_len = cmd_head.data_len;
		while (data_len > 0) {
		if (data_len > DATA_LENGTH)
		len = DATA_LENGTH;
		else
		len = data_len;

		data_len -= len;

		if (tool_i2c_read(cmd_head.data, len) <= 0) {
		pr_err("[READ]Read data failed!\n");
		if (data_len <= 0 \|\| (data_len > data_length)) {
		dev_err(&gt_client->dev, "Invalid data length %d\n",
		data_len);
		ret = -EINVAL;
		goto exit;
		}
		memcpy(&page[loc], &cmd_head.data[GTP_ADDR_LENGTH],
		len);
		loc += len;
		}
		} else if (cmd_head.wr == 2) {
		/* memcpy(page, "gt8", cmd_head.data_len);
		* memcpy(page, "GT818", 5);
		* page[5] = 0;
		*/
		if (data_len > count)
		data_len = count;

		pr_debug("Return ic type:%s len:%d.\n", page,
		(s32)cmd_head.data_len);
		ret = cmd_head.data_len;
		if (tool_i2c_read(cmd_head.data, data_len) <= 0) {
		dev_err(&gt_client->dev, "Read data failed\n");
		ret = -EIO;
		goto exit;
		/* return sizeof(IC_TYPE_NAME); */
		} else if (cmd_head.wr == 4) {
		page[0] = show_len >> 8;
		page[1] = show_len & 0xff;
		page[2] = total_len >> 8;
		page[3] = total_len & 0xff;
		} else if (cmd_head.wr == 6) {
		/* Read error code! */
		} else if (cmd_head.wr == 8) { /Read driver version /
		/* memcpy(page, GTP_DRIVER_VERSION,
		* strlen(GTP_DRIVER_VERSION));
		*/
		s32 tmp_len;

		tmp_len = strlen(GTP_DRIVER_VERSION);
		memcpy(page, GTP_DRIVER_VERSION, tmp_len);
		page[tmp_len] = 0;
		}
		ret = cmd_head.data_len;
		ret = simple_read_from_buffer(user_buf, count, ppos,
		&cmd_head.data[GTP_ADDR_LENGTH], data_len);
		break;
		case GTP_RW_FILL_INFO:
		ret = fill_update_info(user_buf, count, ppos);
		break;
		case GTP_RW_READ_VERSION:
		/* Read driver version */
		data_len = scnprintf(buf, sizeof(buf), "%s\n",
		GTP_DRIVER_VERSION);
		ret = simple_read_from_buffer(user_buf, count, ppos,
		buf, data_len);
		break;
		default:
		ret = -EINVAL;
		break;
		}

		exit:
		mutex_unlock(&lock);
		return ret;
		}

		static const struct file_operations goodix_proc_fops = {
		.write = goodix_tool_write,
		.read = goodix_tool_read,
		.open = simple_open,
		.owner = THIS_MODULE,
		};

		s32 init_wr_node(struct i2c_client *client)
		{
		u8 i;

		gt_client = client;
		memset(&cmd_head, 0, sizeof(cmd_head));
		cmd_head.data = NULL;

		i = GTP_I2C_RETRY_5;
		while ((!cmd_head.data) && i) {
		cmd_head.data = devm_kzalloc(&client->dev,
		i * DATA_LENGTH_UINT, GFP_KERNEL);
		if (cmd_head.data)
		break;
		i--;
		}
		if (i) {
		data_length = i * DATA_LENGTH_UINT;
		dev_dbg(&client->dev, "Applied memory size:%d", data_length);
		}

		cmd_head.addr_len = 2;
		cmd_head.retry = GTP_I2C_RETRY_5;

		register_i2c_func();

		mutex_init(&lock);
		tool_set_proc_name(procname);
		goodix_proc_entry = proc_create(procname,
		S_IWUSR \| S_IWGRP \| S_IRUSR \| S_IRGRP,
		goodix_proc_entry,
		&goodix_proc_fops);
		if (goodix_proc_entry == NULL) {
		dev_err(&client->dev, "Couldn't create proc entry");
		return FAIL;
		}

		return SUCCESS;
		}

drivers/input/touchscreen/gt9xx/gt9xx.c

+8 −12

Original line number	Diff line number	Diff line
		@@ -44,7 +44,8 @@
		#include "gt9xx.h"

		#include <linux/of_gpio.h>

		#include <linux/irq.h>
		#include <linux/module.h>
		#include <linux/input/mt.h>

		#define GOODIX_DEV_NAME "Goodix-CTP"
		@@ -52,10 +53,6 @@
		#define GOODIX_COORDS_ARR_SIZE 4
		#define MAX_BUTTONS 4

		/* HIGH: 0x28/0x29, LOW: 0xBA/0xBB */
		#define GTP_I2C_ADDRESS_HIGH 0x14
		#define GTP_I2C_ADDRESS_LOW 0x5D

		#define GOODIX_VTG_MIN_UV 2600000
		#define GOODIX_VTG_MAX_UV 3300000
		#define GOODIX_I2C_VTG_MIN_UV 1800000
		@@ -79,7 +76,6 @@ static const u16 touch_key_array[] = {KEY_MENU, KEY_HOMEPAGE, KEY_BACK};

		#endif

		static void gtp_reset_guitar(struct goodix_ts_data *ts, int ms);
		static void gtp_int_sync(struct goodix_ts_data *ts, int ms);
		static int gtp_i2c_test(struct i2c_client *client);
		static int goodix_power_off(struct goodix_ts_data *ts);
		@@ -98,7 +94,6 @@ static struct delayed_work gtp_esd_check_work;
		static struct workqueue_struct *gtp_esd_check_workqueue;
		static void gtp_esd_check_func(struct work_struct *work);
		static int gtp_init_ext_watchdog(struct i2c_client *client);
		struct i2c_client *i2c_connect_client;
		#endif

		#if GTP_SLIDE_WAKEUP
		@@ -113,6 +108,7 @@ static s8 gtp_enter_doze(struct goodix_ts_data *ts);
		bool init_done;
		static u8 chip_gt9xxs; /* true if ic is gt9xxs, like gt915s */
		u8 grp_cfg_version;
		struct i2c_client *i2c_connect_client;

		/*******************************************************
		Function:
		@@ -264,7 +260,7 @@ Output:
		result of i2c write operation.
		> 0: succeed, otherwise: failed
		*********************************************************/
		static int gtp_send_cfg(struct goodix_ts_data *ts)
		int gtp_send_cfg(struct goodix_ts_data *ts)
		{
		int ret;
		#if GTP_DRIVER_SEND_CFG
		@@ -656,7 +652,7 @@ Input:
		Output:
		None.
		*******************************************************/
		static void gtp_reset_guitar(struct goodix_ts_data *ts, int ms)
		void gtp_reset_guitar(struct goodix_ts_data *ts, int ms)
		{
		/* This reset sequence will selcet I2C slave address */
		gpio_direction_output(ts->pdata->reset_gpio, 0);
		@@ -1791,7 +1787,7 @@ static int goodix_ts_probe(struct i2c_client *client,
		strlcpy(ts->fw_name, pdata->fw_name,
		strlen(pdata->fw_name) + 1);

		#if GTP_AUTO_UPDATE
		#ifdef CONFIG_GT9XX_TOUCHPANEL_UPDATE
		ret = gup_init_update_proc(ts);
		if (ret < 0) {
		dev_err(&client->dev,
		@@ -1851,7 +1847,7 @@ static int goodix_ts_probe(struct i2c_client *client,
		if (ts->use_irq)
		gtp_irq_enable(ts);

		#if GTP_CREATE_WR_NODE
		#ifdef CONFIG_GT9XX_TOUCHPANEL_DEBUG
		init_wr_node(client);
		#endif

		@@ -1927,7 +1923,7 @@ static int goodix_ts_remove(struct i2c_client *client)
		#endif
		mutex_destroy(&ts->lock);

		#if GTP_CREATE_WR_NODE
		#ifdef CONFIG_GT9XX_TOUCHPANEL_DEBUG
		uninit_wr_node();
		#endif

drivers/input/touchscreen/gt9xx/gt9xx.h

+43 −31

Original line number	Diff line number	Diff line
		@@ -22,18 +22,9 @@

		#include <linux/kernel.h>
		#include <linux/i2c.h>
		#include <linux/irq.h>
		#include <linux/input.h>
		#include <linux/slab.h>
		#include <linux/interrupt.h>
		#include <linux/delay.h>
		#include <linux/kernel.h>
		#include <linux/module.h>
		#include <linux/gpio.h>
		#include <linux/regulator/consumer.h>
		#include <linux/firmware.h>
		#include <linux/debugfs.h>
		#include <linux/mutex.h>
		#include <linux/uaccess.h>

		#if defined(CONFIG_FB)
		#include <linux/notifier.h>
		@@ -116,14 +107,11 @@ extern u16 total_len;
		#define GTP_DRIVER_SEND_CFG 1
		#define GTP_HAVE_TOUCH_KEY 1

		/* auto updated by .bin file as default */
		#define GTP_AUTO_UPDATE 0
		/* auto updated by head_fw_array in gt9xx_firmware.h,
		* function together with GTP_AUTO_UPDATE
		*/
		#define GTP_HEADER_FW_UPDATE 0

		#define GTP_CREATE_WR_NODE 0
		#define GTP_ESD_PROTECT 0
		#define GTP_WITH_PEN 0

		@@ -132,18 +120,6 @@ extern u16 total_len;
		/* double-click wakeup, function together with GTP_SLIDE_WAKEUP */
		#define GTP_DBL_CLK_WAKEUP 0

		/************************* PART2:TODO define *****************************/
		/* STEP_1(REQUIRED): Define Configuration Information Group(s) */
		/* Sensor_ID Map: */
		/* sensor_opt1 sensor_opt2 Sensor_ID
		* GND GND 0
		* VDDIO GND 1
		* NC GND 2
		* GND NC/300K 3
		* VDDIO NC/300K 4
		* NC NC/300K 5
		*/

		#define GTP_IRQ_TAB {\
		IRQ_TYPE_EDGE_RISING,\
		IRQ_TYPE_EDGE_FALLING,\
		@@ -151,7 +127,7 @@ extern u16 total_len;
		IRQ_TYPE_LEVEL_HIGH\
		}

		/* STEP_3(optional): Specify your special config info if needed */

		#define GTP_IRQ_TAB_RISING 0
		#define GTP_IRQ_TAB_FALLING 1
		#if GTP_CUSTOM_CFG
		@@ -197,16 +173,52 @@ extern u16 total_len;
		#define RESOLUTION_LOC 3
		#define TRIGGER_LOC 8

		/* HIGH: 0x28/0x29, LOW: 0xBA/0xBB */
		#define GTP_I2C_ADDRESS_HIGH 0x14
		#define GTP_I2C_ADDRESS_LOW 0x5D

		/* GTP CM_HEAD RW flags */
		#define GTP_RW_READ 0
		#define GTP_RW_WRITE 1
		#define GTP_RW_READ_IC_TYPE 2
		#define GTP_RW_WRITE_IC_TYPE 3
		#define GTP_RW_FILL_INFO 4
		#define GTP_RW_NO_WRITE 5
		#define GTP_RW_READ_ERROR 6
		#define GTP_RW_DISABLE_IRQ 7
		#define GTP_RW_READ_VERSION 8
		#define GTP_RW_ENABLE_IRQ 9
		#define GTP_RW_ENTER_UPDATE_MODE 11
		#define GTP_RW_LEAVE_UPDATE_MODE 13
		#define GTP_RW_UPDATE_FW 15
		#define GTP_RW_CHECK_RAWDIFF_MODE 17

		/* GTP need flag or interrupt */
		#define GTP_NO_NEED 0
		#define GTP_NEED_FLAG 1
		#define GTP_NEED_INTERRUPT 2

		/***************************End of Part III******************************/

		void gtp_esd_switch(struct i2c_client *client, int on);

		#if GTP_CREATE_WR_NODE
		extern s32 init_wr_node(struct i2c_client *client);
		extern void uninit_wr_node(void);
		int gtp_i2c_read_dbl_check(struct i2c_client *client, u16 addr,
		u8 *rxbuf, int len);
		int gtp_send_cfg(struct goodix_ts_data *ts);
		void gtp_reset_guitar(struct goodix_ts_data *ts, int ms);
		void gtp_irq_disable(struct goodix_ts_data *ts);
		void gtp_irq_enable(struct goodix_ts_data *ts);

		#ifdef CONFIG_GT9XX_TOUCHPANEL_DEBUG
		s32 init_wr_node(struct i2c_client *client);
		void uninit_wr_node(void);
		#endif

		#if GTP_AUTO_UPDATE
		#ifdef CONFIG_GT9XX_TOUCHPANEL_UPDATE
		extern u8 gup_init_update_proc(struct goodix_ts_data *ts);
		s32 gup_enter_update_mode(struct i2c_client *client);
		void gup_leave_update_mode(struct i2c_client *client);
		s32 gup_update_proc(void *dir);
		extern struct i2c_client *i2c_connect_client;
		#endif
		#endif /* _GOODIX_GT9XX_H_ */

drivers/input/touchscreen/gt9xx/gt9xx_update.c

+365 −557

File changed.

Preview size limit exceeded, changes collapsed.