input: touchpanel: Add GT9xx touchpanel driver for skuf (0ffd521f) · Commits · e / devices / android_kernel_xiaomi_markw

input/touchscreen/gt9xx/goodix_tool.c

0 → 100644

+615 −0

Original line number	Diff line number	Diff line
		/* drivers/input/touchscreen/goodix_tool.c
		*
		* 2010 - 2012 Goodix Technology.
		*
		* 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 a reference
		* to you, when you are integrating the GOODiX's CTP IC into your system,
		* 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.
		*
		* Version:1.6
		* V1.0:2012/05/01,create file.
		* V1.2:2012/06/08,modify some warning.
		* V1.4:2012/08/28,modified to support GT9XX
		* V1.6:new proc name
		*/

		#include "gt9xx.h"

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

		#define UPDATE_FUNCTIONS

		#ifdef UPDATE_FUNCTIONS
		extern s32 gup_enter_update_mode(struct i2c_client *client);
		extern void gup_leave_update_mode(void);
		extern s32 gup_update_proc(void *dir);
		#endif

		extern void gtp_irq_disable(struct goodix_ts_data *);
		extern void gtp_irq_enable(struct goodix_ts_data *);

		#pragma pack(1)
		typedef struct{
		u8 wr; //write read flag0: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
		u8 flag_relation; //flag_val:flag 0:not equal 1:equal 2:> 3:<
		u16 circle; //polling cycle
		u8 times; //plling times
		u8 retry; //I2C retry times
		u16 delay; //delay befor read or after write
		u16 data_len; //data length
		u8 addr_len; //address length
		u8 addr[2]; //address
		u8 res[3]; //reserved
		u8* data; //data pointer
		}st_cmd_head;
		#pragma pack()
		st_cmd_head cmd_head;

		static struct i2c_client *gt_client = NULL;

		static struct proc_dir_entry *goodix_proc_entry;

		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);

		#if GTP_ESD_PROTECT
		extern void gtp_esd_switch(struct i2c_client *, s32);
		#endif
		s32 DATA_LENGTH = 0;
		s8 IC_TYPE[16] = {0};

		static void tool_set_proc_name(char * procname)
		{
		char *months[12] = {"Jan", "Feb", "Mar", "Apr", "May",
		"Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
		char date[20] = {0};
		char month[4] = {0};
		int i = 0, n_month = 1, n_day = 0, n_year = 0;

		sprintf(date, "%s", __DATE__);

		//GTP_DEBUG("compile date: %s", date);

		sscanf(date, "%s %d %d", month, &n_day, &n_year);

		for (i = 0; i < 12; ++i)
		{
		if (!memcmp(months[i], month, 3))
		{
		n_month = i+1;
		break;
		}
		}

		sprintf(procname, "gmnode%04d%02d%02d", n_year, n_month, n_day);

		//GTP_DEBUG("procname = %s", procname);
		}


		static s32 tool_i2c_read_no_extra(u8* buf, u16 len)
		{
		s32 ret = -1;
		s32 i = 0;
		struct i2c_msg msgs[2];

		msgs[0].flags = !I2C_M_RD;
		msgs[0].addr = gt_client->addr;
		msgs[0].len = cmd_head.addr_len;
		msgs[0].buf = &buf[0];

		msgs[1].flags = I2C_M_RD;
		msgs[1].addr = gt_client->addr;
		msgs[1].len = len;
		msgs[1].buf = &buf[GTP_ADDR_LENGTH];

		for (i = 0; i < cmd_head.retry; i++)
		{
		ret=i2c_transfer(gt_client->adapter, msgs, 2);
		if (ret > 0)
		{
		break;
		}
		}
		return ret;
		}

		static s32 tool_i2c_write_no_extra(u8* buf, u16 len)
		{
		s32 ret = -1;
		s32 i = 0;
		struct i2c_msg msg;

		msg.flags = !I2C_M_RD;
		msg.addr = gt_client->addr;
		msg.len = len;
		msg.buf = buf;

		for (i = 0; i < cmd_head.retry; i++)
		{
		ret=i2c_transfer(gt_client->adapter, &msg, 1);
		if (ret > 0)
		{
		break;
		}
		}
		return ret;
		}

		static s32 tool_i2c_read_with_extra(u8* buf, u16 len)
		{
		s32 ret = -1;
		u8 pre[2] = {0x0f, 0xff};
		u8 end[2] = {0x80, 0x00};

		tool_i2c_write_no_extra(pre, 2);
		ret = tool_i2c_read_no_extra(buf, len);
		tool_i2c_write_no_extra(end, 2);

		return ret;
		}

		static s32 tool_i2c_write_with_extra(u8* buf, u16 len)
		{
		s32 ret = -1;
		u8 pre[2] = {0x0f, 0xff};
		u8 end[2] = {0x80, 0x00};

		tool_i2c_write_no_extra(pre, 2);
		ret = tool_i2c_write_no_extra(buf, len);
		tool_i2c_write_no_extra(end, 2);

		return ret;
		}

		static void register_i2c_func(void)
		{
		// if (!strncmp(IC_TYPE, "GT818", 5) \|\| !strncmp(IC_TYPE, "GT816", 5)
		// \|\| !strncmp(IC_TYPE, "GT811", 5) \|\| !strncmp(IC_TYPE, "GT818F", 6)
		// \|\| !strncmp(IC_TYPE, "GT827", 5) \|\| !strncmp(IC_TYPE,"GT828", 5)
		// \|\| !strncmp(IC_TYPE, "GT813", 5))
		if (strncmp(IC_TYPE, "GT8110", 6) && strncmp(IC_TYPE, "GT8105", 6)
		&& strncmp(IC_TYPE, "GT801", 5) && strncmp(IC_TYPE, "GT800", 5)
		&& strncmp(IC_TYPE, "GT801PLUS", 9) && strncmp(IC_TYPE, "GT811", 5)
		&& strncmp(IC_TYPE, "GTxxx", 5))
		{
		tool_i2c_read = tool_i2c_read_with_extra;
		tool_i2c_write = tool_i2c_write_with_extra;
		GTP_DEBUG("I2C function: with pre and end cmd!");
		}
		else
		{
		tool_i2c_read = tool_i2c_read_no_extra;
		tool_i2c_write = tool_i2c_write_no_extra;
		GTP_INFO("I2C function: without pre and end cmd!");
		}
		}

		static void unregister_i2c_func(void)
		{
		tool_i2c_read = NULL;
		tool_i2c_write = NULL;
		GTP_INFO("I2C function: unregister i2c transfer function!");
		}


		s32 init_wr_node(struct i2c_client *client)
		{
		s32 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 = kzalloc(i * DATA_LENGTH_UINT, GFP_KERNEL);
		if (NULL != cmd_head.data)
		{
		break;
		}
		i--;
		}
		if (i)
		{
		DATA_LENGTH = i * DATA_LENGTH_UINT + GTP_ADDR_LENGTH;
		GTP_INFO("Applied memory size:%d.", DATA_LENGTH);
		}
		else
		{
		GTP_ERROR("Apply for memory failed.");
		return FAIL;
		}

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

		register_i2c_func();

		tool_set_proc_name(procname);
		goodix_proc_entry = create_proc_entry(procname, 0666, NULL);
		if (goodix_proc_entry == NULL)
		{
		GTP_ERROR("Couldn't create proc entry!");
		return FAIL;
		}
		else
		{
		GTP_INFO("Create proc entry success!");
		goodix_proc_entry->write_proc = goodix_tool_write;
		goodix_proc_entry->read_proc = goodix_tool_read;
		}

		return SUCCESS;
		}

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

		static u8 relation(u8 src, u8 dst, u8 rlt)
		{
		u8 ret = 0;

		switch (rlt)
		{
		case 0:
		ret = (src != dst) ? true : false;
		break;

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

		case 2:
		ret = (src > dst) ? true : false;
		break;

		case 3:
		ret = (src < dst) ? true : false;
		break;

		case 4:
		ret = (src & dst) ? true : false;
		break;

		case 5:
		ret = (!(src \| dst)) ? true : false;
		break;

		default:
		ret = false;
		break;
		}

		return ret;
		}

		/*******************************************************
		Function:
		Comfirm function.
		Input:
		None.
		Output:
		Return write length.
		********************************************************/
		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)
		{
		GTP_ERROR("Read flag data failed!");
		return FAIL;
		}
		if (true == relation(buf[GTP_ADDR_LENGTH], cmd_head.flag_val, cmd_head.flag_relation))
		{
		GTP_DEBUG("value at flag addr:0x%02x.", buf[GTP_ADDR_LENGTH]);
		GTP_DEBUG("flag value:0x%02x.", cmd_head.flag_val);
		break;
		}

		msleep(cmd_head.circle);
		}

		if (i >= cmd_head.times)
		{
		GTP_ERROR("Didn't get the flag to continue!");
		return FAIL;
		}

		return SUCCESS;
		}

		/*******************************************************
		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)
		{
		s32 ret = 0;
		GTP_DEBUG_FUNC();
		GTP_DEBUG_ARRAY((u8*)buff, len);

		ret = copy_from_user(&cmd_head, buff, CMD_HEAD_LENGTH);
		if(ret)
		{
		GTP_ERROR("copy_from_user failed.");
		}

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

		if (1 == cmd_head.wr)
		{
		// copy_from_user(&cmd_head.data[cmd_head.addr_len], &buff[CMD_HEAD_LENGTH], cmd_head.data_len);
		ret = copy_from_user(&cmd_head.data[GTP_ADDR_LENGTH], &buff[CMD_HEAD_LENGTH], cmd_head.data_len);
		if(ret)
		{
		GTP_ERROR("copy_from_user failed.");
		}
		memcpy(&cmd_head.data[GTP_ADDR_LENGTH - cmd_head.addr_len], cmd_head.addr, cmd_head.addr_len);

		GTP_DEBUG_ARRAY(cmd_head.data, cmd_head.data_len + cmd_head.addr_len);
		GTP_DEBUG_ARRAY((u8*)&buff[CMD_HEAD_LENGTH], cmd_head.data_len);

		if (1 == cmd_head.flag)
		{
		if (FAIL == comfirm())
		{
		GTP_ERROR("[WRITE]Comfirm fail!");
		return FAIL;
		}
		}
		else if (2 == cmd_head.flag)
		{
		//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)
		{
		GTP_ERROR("[WRITE]Write data failed!");
		return FAIL;
		}

		GTP_DEBUG_ARRAY(&cmd_head.data[GTP_ADDR_LENGTH - cmd_head.addr_len],cmd_head.data_len + cmd_head.addr_len);
		if (cmd_head.delay)
		{
		msleep(cmd_head.delay);
		}

		return cmd_head.data_len + CMD_HEAD_LENGTH;
		}
		else if (3 == cmd_head.wr) //Write ic type
		{
		ret = copy_from_user(&cmd_head.data[0], &buff[CMD_HEAD_LENGTH], cmd_head.data_len);
		if(ret)
		{
		GTP_ERROR("copy_from_user failed.");
		}
		memcpy(IC_TYPE, cmd_head.data, cmd_head.data_len);

		register_i2c_func();

		return cmd_head.data_len + CMD_HEAD_LENGTH;
		}
		else if (5 == cmd_head.wr)
		{
		//memcpy(IC_TYPE, cmd_head.data, cmd_head.data_len);

		return cmd_head.data_len + CMD_HEAD_LENGTH;
		}
		else if (7 == cmd_head.wr)//disable irq!
		{
		gtp_irq_disable(i2c_get_clientdata(gt_client));

		#if GTP_ESD_PROTECT
		gtp_esd_switch(gt_client, SWITCH_OFF);
		#endif
		return CMD_HEAD_LENGTH;
		}
		else if (9 == cmd_head.wr) //enable irq!
		{
		gtp_irq_enable(i2c_get_clientdata(gt_client));

		#if GTP_ESD_PROTECT
		gtp_esd_switch(gt_client, SWITCH_ON);
		#endif
		return CMD_HEAD_LENGTH;
		}
		else if(17 == cmd_head.wr)
		{
		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)
		{
		GTP_DEBUG("copy_from_user failed.");
		}
		if(cmd_head.data[GTP_ADDR_LENGTH])
		{
		GTP_DEBUG("gtp enter rawdiff.");
		ts->gtp_rawdiff_mode = true;
		}
		else
		{
		ts->gtp_rawdiff_mode = false;
		GTP_DEBUG("gtp leave rawdiff.");
		}
		return CMD_HEAD_LENGTH;
		}
		#ifdef UPDATE_FUNCTIONS
		else if (11 == cmd_head.wr)//Enter update mode!
		{
		if (FAIL == gup_enter_update_mode(gt_client))
		{
		return FAIL;
		}
		}
		else if (13 == cmd_head.wr)//Leave update mode!
		{
		gup_leave_update_mode();
		}
		else if (15 == cmd_head.wr) //Update firmware!
		{
		show_len = 0;
		total_len = 0;
		memset(cmd_head.data, 0, cmd_head.data_len + 1);
		memcpy(cmd_head.data, &buff[CMD_HEAD_LENGTH], cmd_head.data_len);

		if (FAIL == gup_update_proc((void*)cmd_head.data))
		{
		return FAIL;
		}
		}
		#endif

		return CMD_HEAD_LENGTH;
		}

		/*******************************************************
		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 )
		{
		GTP_DEBUG_FUNC();

		if (cmd_head.wr % 2)
		{
		return FAIL;
		}
		else if (!cmd_head.wr)
		{
		u16 len = 0;
		s16 data_len = 0;
		u16 loc = 0;

		if (1 == cmd_head.flag)
		{
		if (FAIL == comfirm())
		{
		GTP_ERROR("[READ]Comfirm fail!");
		return FAIL;
		}
		}
		else if (2 == cmd_head.flag)
		{
		//Need interrupt!
		}

		memcpy(cmd_head.data, cmd_head.addr, cmd_head.addr_len);

		GTP_DEBUG("[CMD HEAD DATA] ADDR:0x%02x%02x.", cmd_head.data[0], cmd_head.data[1]);
		GTP_DEBUG("[CMD HEAD ADDR] ADDR:0x%02x%02x.", cmd_head.addr[0], cmd_head.addr[1]);

		if (cmd_head.delay)
		{
		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 -= DATA_LENGTH;

		if (tool_i2c_read(cmd_head.data, len) <= 0)
		{
		GTP_ERROR("[READ]Read data failed!");
		return FAIL;
		}
		memcpy(&page[loc], &cmd_head.data[GTP_ADDR_LENGTH], len);
		loc += len;

		GTP_DEBUG_ARRAY(&cmd_head.data[GTP_ADDR_LENGTH], len);
		GTP_DEBUG_ARRAY(page, len);
		}
		}
		else if (2 == cmd_head.wr)
		{
		// memcpy(page, "gt8", cmd_head.data_len);
		// memcpy(page, "GT818", 5);
		// page[5] = 0;

		GTP_DEBUG("Return ic type:%s len:%d.", page, (s32)cmd_head.data_len);
		return cmd_head.data_len;
		//return sizeof(IC_TYPE_NAME);
		}
		else if (4 == cmd_head.wr)
		{
		page[0] = show_len >> 8;
		page[1] = show_len & 0xff;
		page[2] = total_len >> 8;
		page[3] = total_len & 0xff;

		return cmd_head.data_len;
		}
		else if (6 == cmd_head.wr)
		{
		//Read error code!
		}
		else if (8 == cmd_head.wr) //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;
		}

		return cmd_head.data_len;
		}