1 /* drivers/input/touchscreen/goodix_touch.c
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3 * Copyright (C) 2010 - 2011 Goodix, Inc.
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5 * This program is free software; you can redistribute it and/or modify
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6 * it under the terms of the GNU General Public License as published by
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7 * the Free Software Foundation; either version 2 of the License, or
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8 * (at your option) any later version.
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10 * This program is distributed in the hope that it will be useful, but WITHOUT
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 #include <linux/kernel.h>
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17 #include <linux/module.h>
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18 #include <linux/time.h>
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19 #include <linux/delay.h>
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20 #include <linux/device.h>
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21 #include <linux/earlysuspend.h>
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22 #include <linux/hrtimer.h>
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23 #include <linux/i2c.h>
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24 #include <linux/input.h>
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25 #include <linux/input/mt.h>
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27 #include <linux/interrupt.h>
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28 #include <linux/io.h>
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29 #include <linux/platform_device.h>
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30 #include <mach/gpio.h>
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32 #include <linux/irq.h>
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33 #include <linux/syscalls.h>
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34 #include <linux/reboot.h>
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35 #include <linux/proc_fs.h>
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36 #include <linux/async.h>
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37 #include <linux/gt8110.h>
39 #include <linux/vmalloc.h>
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40 #include <linux/fs.h>
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41 #include <linux/string.h>
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42 #include <linux/completion.h>
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43 #include <asm/uaccess.h>
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44 #include <mach/board.h>
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47 #define PEN_RELEASE 0
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48 #define PEN_DOWN_UP 2
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51 #define GOODIX_I2C_NAME "Goodix-TS"
53 #define POLL_TIME 10 //actual query spacing interval:POLL_TIME+6
55 #define MAX_FINGER_NUM 10
66 struct i2c_client *client;
67 struct input_dev *input_dev;
74 struct workqueue_struct *ts_wq;
75 struct delayed_work ts_work;
77 struct early_suspend early_suspend;
78 int (*power)(struct rk_ts_data * ts, int on);
79 int (*ts_init)(struct rk_ts_data*ts);
80 int (*input_parms_init)(struct rk_ts_data *ts);
81 void (*get_touch_info)(struct rk_ts_data *ts,char *point_num,struct rk_touch_info *info_buf); //get touch data info
84 uint8_t max_touch_num;
88 struct goodix_ts_data {
91 struct i2c_client *client;
92 struct input_dev *input_dev;
97 struct delayed_work work;
100 struct early_suspend early_suspend;
101 int (*power)(struct goodix_ts_data * ts, int on);
104 uint8_t max_touch_num;
105 uint8_t int_trigger_type;
109 static const char *rk_ts_name = "Goodix Capacitive TouchScreen";
110 static struct workqueue_struct *goodix_wq;
111 static struct i2c_client * i2c_connect_client = NULL;
112 static struct proc_dir_entry *goodix_proc_entry;
115 #define READ_COOR_ADDR 0x01
119 //*************************Firmware Update part*******************************
120 #define CONFIG_TOUCHSCREEN_GOODIX_IAP
121 #ifdef CONFIG_TOUCHSCREEN_GOODIX_IAP
122 #define UPDATE_NEW_PROTOCOL
124 static unsigned int oldcrc32 = 0xFFFFFFFF;
125 static unsigned int crc32_table[256];
126 static unsigned int ulPolynomial = 0x04c11db7;
127 static unsigned char rd_cfg_addr;
128 static unsigned char rd_cfg_len;
129 static unsigned char g_enter_isp = 0;
131 static int goodix_update_write(struct file *filp, const char __user *buff, unsigned long len, void *data);
132 static int goodix_update_read( char *page, char **start, off_t off, int count, int *eof, void *data );
134 #define PACK_SIZE 64 //update file package size
135 #define MAX_TIMEOUT 60000 //update time out conut
136 #define MAX_I2C_RETRIES 20 //i2c retry times
141 #ifdef UPDATE_NEW_PROTOCOL
148 #define NEW_UPDATE_START 0x01
149 #define UPDATE_START 0x02
150 #define SLAVE_READY 0x08
151 #define UNKNOWN_ERROR 0x00
152 #define FRAME_ERROR 0x10
153 #define CHECKSUM_ERROR 0x20
154 #define TRANSLATE_ERROR 0x40
155 #define FLASH_ERROR 0X80
158 #define ERROR_NO_FILE 2 //ENOENT
159 #define ERROR_FILE_READ 23 //ENFILE
160 #define ERROR_FILE_TYPE 21 //EISDIR
161 #define ERROR_GPIO_REQUEST 4 //EINTR
162 #define ERROR_I2C_TRANSFER 5 //EIO
163 #define ERROR_NO_RESPONSE 16 //EBUSY
164 #define ERROR_TIMEOUT 110 //ETIMEDOUT
167 #define STEP_SET_PATH 1
168 #define STEP_CHECK_FILE 2
169 #define STEP_WRITE_SYN 3
170 #define STEP_WAIT_SYN 4
171 #define STEP_WRITE_LENGTH 5
172 #define STEP_WAIT_READY 6
173 #define STEP_WRITE_DATA 7
174 #define STEP_READ_STATUS 8
175 #define FUN_CLR_VAL 9
177 #define FUN_WRITE_CONFIG 11
180 #define CMD_DISABLE_TP 0
181 #define CMD_ENABLE_TP 1
182 #define CMD_READ_VER 2
183 #define CMD_READ_RAW 3
184 #define CMD_READ_DIF 4
185 #define CMD_READ_CFG 5
186 #define CMD_SYS_REBOOT 101
189 #define MODE_RD_VER 1
190 #define MODE_RD_RAW 2
191 #define MODE_RD_DIF 3
192 #define MODE_RD_CFG 4
195 static struct rk_touch_info *info_buf;
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197 static int dbg_thresd = 0;
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198 #define DBG(x...) do { if(unlikely(dbg_thresd)) printk(KERN_INFO x); } while (0)
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201 /*******************************************************
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203 Read data from the i2c slave device;
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204 This operation consisted of 2 i2c_msgs,the first msg used
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205 to write the operate address,the second msg used to read data.
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208 client: i2c device.
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209 buf[0]:operate address.
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210 buf[1]~buf[len]:read data buffer.
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211 len:operate length.
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214 numbers of i2c_msgs to transfer
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215 *********************************************************/
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216 static int goodix_i2c_read_bytes(struct i2c_client *client, uint8_t *buf, int len)
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218 struct i2c_msg msgs[2];
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222 msgs[0].flags = client->flags;
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223 msgs[0].addr=client->addr;
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225 msgs[0].buf=&buf[0];
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226 msgs[0].udelay = client->udelay;
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227 msgs[0].scl_rate=200 * 1000;
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229 msgs[1].flags = client->flags | I2C_M_RD;
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230 msgs[1].addr=client->addr;
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232 msgs[1].buf=&buf[1];
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233 msgs[1].udelay = client->udelay;
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234 msgs[0].scl_rate=200 * 1000;
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238 ret=i2c_transfer(client->adapter,msgs, 2);
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245 /*******************************************************
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247 write data to the i2c slave device.
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250 client: i2c device.
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251 buf[0]:operate address.
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252 buf[1]~buf[len]:write data buffer.
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253 len:operate length.
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256 numbers of i2c_msgs to transfer.
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257 *********************************************************/
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258 static int goodix_i2c_write_bytes(struct i2c_client *client,uint8_t *data,int len)
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260 struct i2c_msg msg;
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264 msg.flags=!I2C_M_RD;
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265 msg.addr=client->addr;
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268 msg.udelay = client->udelay;
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269 msg.scl_rate=200 * 1000;
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273 ret=i2c_transfer(client->adapter,&msg, 1);
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280 static int goodix_config_ok(struct rk_ts_data *ts)
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283 unsigned int w,h, n;
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284 uint8_t rd_cfg_buf[7] = {0x66,};
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286 ret = goodix_i2c_read_bytes(ts->client, rd_cfg_buf, 7);
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288 w = (rd_cfg_buf[2]<<8) + rd_cfg_buf[1];
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289 h = (rd_cfg_buf[4]<<8) + rd_cfg_buf[3];
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295 ts->max_touch_num = n;
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297 printk("goodix_ts_init: X_MAX = %d,Y_MAX = %d,MAX_TOUCH_NUM = %d\n",ts->abs_x_max,ts->abs_y_max,ts->max_touch_num);
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301 /*******************************************************
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303 Goodix touchscreen initialize function.
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306 ts: i2c client private struct.
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309 Executive outcomes.0---succeed.
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310 *******************************************************/
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311 static int goodix_init_panel(struct rk_ts_data *ts)
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313 int ret=-1, retry = 10;
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314 uint8_t rd_cfg_buf[7] = {0x66,};
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315 char test_data = 0;
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317 uint8_t config_info[] = {
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318 0x65,0x02,0x00,0x10,0x00,0x10,0x0A,0x62,0x4A,0x00,
319 0x0F,0x28,0x02,0x10,0x10,0x00,0x00,0x20,0x00,0x00,
320 0x10,0x10,0x10,0x00,0x37,0x00,0x00,0x00,0x01,0x02,
321 0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,
322 0x0D,0xFF,0xFF,0x00,0x01,0x02,0x03,0x04,0x05,0x06,
323 0x07,0x08,0x09,0x0A,0x0B,0x0C,0xFF,0xFF,0xFF,0x00,
324 0x00,0x3C,0x64,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
325 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
326 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
327 0x00,0x00,0x00,0x00,0x00
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330 ret=goodix_i2c_write_bytes(ts->client,config_info,95);
333 printk("GT8110 send config para successfully!\n");
337 printk("GT8110 send config para failed!\n");
339 ts->abs_x_max = 4096;
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340 ts->abs_y_max = 4096;
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341 ts->max_touch_num = 10;
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347 //fjp add ===============================
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348 static bool goodix_get_status(char *p1,int*p2)
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350 bool status = PEN_DOWN;
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351 if((*p2==PEN_DOWN) && (*p1==PEN_RELEASE))
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353 *p2 = PEN_DOWN_UP; //¸Õ¸Õµ¯Æð
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354 status = PEN_RELEASE;
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356 else if((*p2==PEN_RELEASE) && (*p1==PEN_RELEASE))
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359 status = PEN_RELEASE;
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368 //===================================
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369 /*******************************************************
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371 Read goodix touchscreen version function.
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374 ts: i2c client private struct.
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377 Executive outcomes.0---succeed.
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378 *******************************************************/
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379 static int goodix_read_version(struct rk_ts_data *ts, char **version)
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381 int ret = -1, count = 0;
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382 char *version_data;
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385 *version = (char *)vmalloc(18);
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386 version_data = *version;
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390 memset(version_data, 0, 18);
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391 version_data[0]=240;
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392 ret=goodix_i2c_read_bytes(ts->client,version_data, 17);
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395 version_data[17]='\0';
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401 if((*p > 122) || (*p < 48 && *p != 32) || (*p >57 && *p < 65)
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402 ||(*p > 90 && *p < 97 && *p != '_')) //check illeqal character
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404 }while(*++p != '\0' );
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411 static int last_touch_num = -1;
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412 static void goodix_get_touch_info(struct rk_ts_data *ts,char *point_num,struct rk_touch_info* info_buf)
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414 uint8_t point_data[(1-READ_COOR_ADDR)+1+2+5*MAX_FINGER_NUM+1]={ 0 }; //read address(1byte)+key index(1byte)+point mask(2bytes)+5bytes*MAX_FINGER_NUM+coor checksum(1byte)
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415 uint8_t check_sum = 0;
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417 uint16_t finger_current = 0;
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418 uint16_t finger_bit = 0;
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419 unsigned int count = 0, point_count = 0;
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420 unsigned char touch_num = 0;
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421 uint8_t chksum_err = 0;
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422 unsigned int position = 0;
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423 uint8_t track_id[MAX_FINGER_NUM] = {0};
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426 point_data[0] = 0;//READ_COOR_ADDR;//0x65;//READ_COOR_ADDR; //read coor address
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430 printk("goodix ts or info_buf is null\n");
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434 ret=goodix_i2c_read_bytes(ts->client, point_data, sizeof(point_data)/sizeof(point_data[0]));
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437 printk("goodix read error\n");
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439 finger_current = (point_data[2]<<8) + point_data[1];
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441 DBG("finger_current:%d ==== max_touch_num:%d\n", finger_current,ts->max_touch_num);//add by fjp 2010-9-28
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443 /*printk(" GT8110 read point data info\n");
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444 for(index = 0 ; index < 20 ; index++)
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446 printk(" %x ",point_data[index]);
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452 finger_bit = finger_current;
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453 for(count = 0; (finger_bit != 0) && (count < ts->max_touch_num); count++)//cal how many point touch currntly
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455 if(finger_bit & 0x01)
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457 track_id[count] = PEN_DOWN;
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462 touch_num = point_count;
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464 check_sum = point_data[2 - READ_COOR_ADDR] + point_data[3 - READ_COOR_ADDR]; //cal coor checksum
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465 count = 4 - READ_COOR_ADDR;
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466 for(point_count *= 5; point_count > 0; point_count--)
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467 check_sum += point_data[count++];
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468 check_sum += point_data[count];
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469 //if(check_sum != 0) //checksum verify error
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472 printk("coor checksum error!\n");
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480 //printk("current point num:%d\n",touch_num);
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481 *point_num = touch_num;
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482 if(touch_num < last_touch_num) //some flinger release
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484 //printk("%d flinger release\n",last_touch_num-touch_num);
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485 /*for(index = touch_num; index < last_touch_num; index++)
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486 info_buf[index].status = 0;*/
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487 *point_num = last_touch_num;
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488 touch_num = last_touch_num;
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490 last_touch_num = touch_num;
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491 //printk(" X and Y point value is\n");
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492 for(index = 0; index < touch_num; index++)
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494 if(goodix_get_status(&track_id[index],&info_buf[index].status))
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496 position = 3 + 4*(temp++);
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497 info_buf[index].x = (unsigned int) (point_data[position+1]<<8) + (unsigned int)( point_data[position]);
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498 info_buf[index].y = (unsigned int)(point_data[position+3]<<8) + (unsigned int) (point_data[position+2]);
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499 info_buf[index].press = (unsigned int) (point_data[position+4]);
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500 //printk(" x = %d , y = %d , p = %d ", info_buf[index].x,info_buf[index].y, info_buf[index].press);
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507 /*******************************************************
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509 Goodix touchscreen work function.
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512 ts: i2c client private struct.
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515 Executive outcomes.0---succeed.
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516 *******************************************************/
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517 static void rk_ts_work_func(struct work_struct *pwork)
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521 struct rk_ts_data *ts = container_of(to_delayed_work(pwork), struct rk_ts_data, ts_work);
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525 printk("container of rk_ts_data fail\n");
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530 printk("info_buf fail\n");
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534 if(ts->get_touch_info)
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536 ts->get_touch_info(ts,&point_num,info_buf);
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538 for(i=0; i< point_num; i++)
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540 DBG("info_buf[i].status =====%d\n",info_buf[i].status);
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541 if(info_buf[i].status==PEN_DOWN_UP)
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543 info_buf[i].status=PEN_RELEASE;
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544 DBG("the key %d is up------\n",i);
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545 input_mt_slot(ts->input_dev, i);
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546 input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, false);
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549 if(info_buf[i].status==PEN_DOWN)
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551 input_mt_slot(ts->input_dev, i);
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552 input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);
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553 input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, info_buf[i].press);
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554 input_report_abs(ts->input_dev, ABS_MT_POSITION_X, info_buf[i].x);
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555 input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, info_buf[i].y);
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556 DBG("touch point %d %d >>x:%d>>y:%d\n",i,info_buf[i].status,info_buf[i].x,info_buf[i].y);//add by fjp 2010-9-28
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564 input_sync(ts->input_dev);
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566 if(gpio_get_value(ts->irq_pin) == GPIO_LOW)
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570 DBG("touch down .............\n");//add by fjp 2010-9-28
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571 queue_delayed_work(ts->ts_wq, &ts->ts_work,msecs_to_jiffies(20));
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578 DBG("touch up>>x:%d>>y:%d\n",info_buf[0].x,info_buf[0].y);//add by fjp 2010-9-28
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579 /*input_mt_slot(ts->input_dev, 0);
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580 input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);
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581 input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
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583 input_mt_slot(ts->input_dev, 0);
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584 input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, false);*/
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586 DBG("point_num+++++++++++ = %d\n", point_num);//add by fjp 2010-9-28
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587 for(i=0; i< point_num; i++)
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589 // printk("info_buf[i].status +++++++%d\n",info_buf[i].status);
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590 if(info_buf[i].status)
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592 input_mt_slot(ts->input_dev, i);//°´ÐòºÅÉϱ¨
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593 input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, false);
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594 //input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);
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595 info_buf[i].status= PEN_RELEASE;
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598 DBG("release+++++++++++ = %d\n", i);//add by fjp 2010-9-28
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602 input_sync(ts->input_dev);
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603 ts->pendown =PEN_RELEASE;
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604 last_touch_num = 0;
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606 enable_irq(ts->irq);
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616 /*******************************************************
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618 Timer interrupt service routine.
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621 timer: timer struct pointer.
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624 Timer work mode. HRTIMER_NORESTART---not restart mode
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625 *******************************************************/
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626 static enum hrtimer_restart goodix_ts_timer_func(struct hrtimer *timer)
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628 struct rk_ts_data *ts = container_of(timer, struct rk_ts_data, timer);
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629 queue_delayed_work(goodix_wq,&ts->ts_work,0);
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630 hrtimer_start(&ts->timer, ktime_set(0, (POLL_TIME+6)*1000000), HRTIMER_MODE_REL);
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631 return HRTIMER_NORESTART;
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633 /*******************************************************
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635 External interrupt service routine.
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638 irq: interrupt number.
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639 dev_id: private data pointer.
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642 irq execute status.
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643 *******************************************************/
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644 static irqreturn_t rk_ts_irq_handler(int irq, void *dev_id)
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647 struct rk_ts_data *ts = (struct rk_ts_data*)dev_id;
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648 disable_irq_nosync(ts->irq);
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649 queue_delayed_work(ts->ts_wq, &ts->ts_work,0);
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651 return IRQ_HANDLED;
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654 static int rk_ts_suspend(struct i2c_client *client, pm_message_t mesg)
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657 struct rk_ts_data *ts = i2c_get_clientdata(client);
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661 disable_irq(ts->irq);
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665 ret = ts->power(ts, 0);
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667 printk(KERN_ERR "goodix_ts_resume power off failed\n");
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673 static int rk_ts_resume(struct i2c_client *client)
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676 struct rk_ts_data *ts = i2c_get_clientdata(client);
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680 ret = ts->power(ts, 1);
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682 printk(KERN_ERR "goodix_ts_resume power on failed\n");
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686 enable_irq(client->irq);
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693 #ifdef CONFIG_HAS_EARLYSUSPEND
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694 static void rk_ts_early_suspend(struct early_suspend *h)
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696 struct rk_ts_data *ts;
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697 ts = container_of(h, struct rk_ts_data, early_suspend);
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698 rk_ts_suspend(ts->client, PMSG_SUSPEND);
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701 static void rk_ts_late_resume(struct early_suspend *h)
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703 struct rk_ts_data *ts;
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704 ts = container_of(h, struct rk_ts_data, early_suspend);
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705 rk_ts_resume(ts->client);
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709 /*******************************************************
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711 Goodix touchscreen power manage function.
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714 on: power status.0---suspend;1---resume.
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717 Executive outcomes.-1---i2c transfer error;0---succeed.
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718 *******************************************************/
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719 static int goodix_ts_power(struct rk_ts_data * ts, int on)
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722 unsigned char i2c_control_buf[2] = {0x38, 0x56}; //suspend cmd
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724 if(on != 0 && on !=1)
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726 printk(KERN_DEBUG "%s: Cant't support this command.", rk_ts_name);
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731 if(on == 0) //suspend
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733 gpio_set_value(ts->rst_pin,GPIO_LOW);
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735 gpio_set_value(ts->rst_pin,GPIO_HIGH);
739 ret = goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);
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742 printk(KERN_DEBUG "touch goodix Send suspend cmd successed \n");
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751 else if(on == 1) //resume
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753 printk(KERN_DEBUG "touch goodix int resume\n");
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754 gpio_set_value(ts->rst_pin,GPIO_LOW);
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756 gpio_set_value(ts->rst_pin,GPIO_HIGH);
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763 static int goodix_input_params_init(struct rk_ts_data *ts)
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766 ts->input_dev = input_allocate_device();
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767 if (ts->input_dev == NULL) {
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769 printk(KERN_ALERT "Failed to allocate input device\n");
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774 __set_bit(INPUT_PROP_DIRECT, ts->input_dev->propbit);
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775 __set_bit(EV_ABS, ts->input_dev->evbit);
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777 input_mt_init_slots(ts->input_dev, ts->max_touch_num);
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778 input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
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779 input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X, 0, /*ts->abs_x_max*/4096, 0, 0);
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780 input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y, 0, /*ts->abs_y_max*/4096, 0, 0);
\r
781 sprintf(ts->phys, "input/rkts");
\r
782 ts->input_dev->name = rk_ts_name;
\r
783 ts->input_dev->phys = ts->phys;
\r
784 ts->input_dev->id.bustype = BUS_I2C;
\r
785 ts->input_dev->id.vendor = 0xDEAD;
\r
786 ts->input_dev->id.product = 0xBEEF;
\r
787 ts->input_dev->id.version = 10427; //screen firmware version
\r
789 ret = input_register_device(ts->input_dev);
\r
791 printk(KERN_ALERT "Probe: Unable to register %s input device\n", ts->input_dev->name);
\r
799 static int goodix_ts_init(struct rk_ts_data *ts)
\r
802 char *version_info = NULL;
\r
804 char test_data = 1;
\r
806 for(retry=0;retry < 30; retry++) //test goodix
\r
808 ret =goodix_i2c_write_bytes(ts->client, &test_data, 1);
\r
814 printk(KERN_INFO "I2C communication ERROR!Goodix touchscreen driver become invalid\n");
\r
819 ret = goodix_read_version(ts, &version_info);
\r
822 printk(KERN_INFO"Read version data failed!\n");
\r
826 printk("goodix_ts_init: version %s\n", (version_info+1));
\r
829 ret=goodix_init_panel(ts);
\r
831 printk("goodix panel init fail\n");
\r
835 vfree(version_info);
\r
836 #ifdef CONFIG_TOUCHSCREEN_GOODIX_IAP
\r
837 goodix_proc_entry = create_proc_entry("goodix-update", 0666, NULL);
\r
838 if(goodix_proc_entry == NULL)
\r
840 printk("Couldn't create proc entry!\n");
\r
846 printk("goodix_ts_init: create proc entry success!\n");
\r
847 goodix_proc_entry->write_proc = goodix_update_write;
\r
848 goodix_proc_entry->read_proc = goodix_update_read;
\r
855 /*******************************************************
\r
857 Goodix touchscreen probe function.
\r
860 client: i2c device struct.
\r
864 Executive outcomes. 0---succeed.
\r
865 *******************************************************/
\r
866 static int rk_ts_probe(struct i2c_client *client, const struct i2c_device_id *id)
\r
869 struct rk_ts_data *ts;
\r
870 struct goodix_8110_platform_data *pdata ;
\r
872 printk(KERN_INFO "Install touch driver.\n");
\r
873 if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
\r
875 dev_err(&client->dev, "Must have I2C_FUNC_I2C.\n");
\r
880 ts = kzalloc(sizeof(struct rk_ts_data), GFP_KERNEL);
\r
882 printk(KERN_ALERT "alloc for struct rk_ts_data fail\n");
\r
888 pdata = client->dev.platform_data;
\r
889 ts->irq_pin = pdata->irq_pin;
\r
890 ts->rst_pin = pdata->reset;
\r
891 ts->pendown =PEN_RELEASE;
\r
892 ts->client = client;
\r
893 ts->ts_init = goodix_ts_init;
\r
894 ts->power = goodix_ts_power;
\r
895 ts->get_touch_info = goodix_get_touch_info;
\r
896 ts->input_parms_init = goodix_input_params_init;
\r
897 i2c_set_clientdata(client, ts);
903 gpio_set_value(pdata->reset, 1);
\r
908 ret = ts->ts_init(ts);
\r
911 printk(KERN_ALERT "rk ts init fail\n");
\r
916 if(ts->input_parms_init)
\r
918 ts->input_parms_init(ts);
\r
921 i2c_connect_client = client;
\r
922 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,32)
\r
923 ts->ts_wq= create_rt_workqueue("rk_ts_wq"); //create a work queue and worker thread
\r
925 ts->ts_wq= create_workqueue("rk_ts_wq");
\r
928 printk(KERN_ALERT "creat touch screen workqueue failed\n");
\r
932 INIT_DELAYED_WORK(&ts->ts_work, rk_ts_work_func);
\r
933 #ifdef CONFIG_HAS_EARLYSUSPEND
\r
934 ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
\r
935 ts->early_suspend.suspend = rk_ts_early_suspend;
\r
936 ts->early_suspend.resume = rk_ts_late_resume;
\r
937 register_early_suspend(&ts->early_suspend);
\r
940 info_buf= kzalloc(ts->max_touch_num*sizeof(struct rk_touch_info), GFP_KERNEL);
\r
943 printk(KERN_ALERT "alloc for rk_touch_info fail\n");
\r
944 goto err_input_register_device_failed;
\r
947 ts->irq=gpio_to_irq(ts->irq_pin) ; //If not defined in client
\r
950 ret = gpio_request(pdata->irq_pin, "TS_IRQ_PIN"); //Request IO
\r
953 printk(KERN_ALERT "Failed to request for touch irq\n");
\r
954 goto err_input_register_device_failed;
\r
958 gpio_direction_input(pdata->irq_pin);
\r
961 ret = request_irq(ts->irq, rk_ts_irq_handler ,IRQ_TYPE_LEVEL_LOW/*IRQF_TRIGGER_FALLING*/,client->name, ts);
\r
963 printk(KERN_ALERT "Cannot allocate ts INT!ERRNO:%d\n", ret);
\r
964 gpio_free(ts->irq_pin);
\r
965 goto err_input_register_device_failed;
\r
968 printk("goodix_ts_init: probe successfully!\n");
\r
972 err_input_register_device_failed:
\r
973 input_free_device(ts->input_dev);
\r
974 i2c_set_clientdata(client, NULL);
\r
981 /*******************************************************
\r
983 Goodix touchscreen driver release function.
\r
986 client: i2c device struct.
\r
989 Executive outcomes. 0---succeed.
\r
990 *******************************************************/
\r
991 static int rk_ts_remove(struct i2c_client *client)
\r
993 struct rk_ts_data *ts = i2c_get_clientdata(client);
\r
994 #ifdef CONFIG_HAS_EARLYSUSPEND
\r
995 unregister_early_suspend(&ts->early_suspend);
\r
997 #ifdef CONFIG_TOUCHSCREEN_GOODIX_IAP
\r
998 remove_proc_entry("goodix-update", NULL);
\r
1001 gpio_free(ts->irq_pin);
\r
1002 free_irq(ts->irq, ts);
\r
1003 dev_notice(&client->dev,"The driver is removing...\n");
\r
1004 i2c_set_clientdata(client, NULL);
\r
1005 input_unregister_device(ts->input_dev);
\r
1012 static void rk_ts_shutdown(struct i2c_client *client)
\r
1014 #ifdef CONFIG_HAS_EARLYSUSPEND
\r
1015 struct rk_ts_data *ts = i2c_get_clientdata(client);
\r
1016 unregister_early_suspend(&ts->early_suspend);
\r
1020 //******************************Begin of firmware update surpport*******************************
\r
1021 #ifdef CONFIG_TOUCHSCREEN_GOODIX_IAP
\r
1023 @brief CRC cal proc,include : Reflect,init_crc32_table,GenerateCRC32
\r
1024 @param global var oldcrc32
\r
1027 static unsigned int Reflect(unsigned long int ref, char ch)
\r
1029 unsigned int value=0;
\r
1031 for(i = 1; i < (ch + 1); i++)
\r
1034 value |= 1 << (ch - i);
\r
1039 /*---------------------------------------------------------------------------------------------------------*/
\r
1040 /* CRC Check Program INIT */
\r
1041 /*---------------------------------------------------------------------------------------------------------*/
\r
1042 static void init_crc32_table(void)
\r
1044 unsigned int temp;
\r
1045 unsigned int t1,t2;
\r
1046 unsigned int flag;
\r
1048 for(i = 0; i <= 0xFF; i++)
\r
1050 temp=Reflect(i, 8);
\r
1051 crc32_table[i]= temp<< 24;
\r
1052 for (j = 0; j < 8; j++)
\r
1055 flag=crc32_table[i]&0x80000000;
\r
1056 t1=(crc32_table[i] << 1);
\r
1061 crc32_table[i] =t1^t2 ;
\r
1064 crc32_table[i] = Reflect(crc32_table[i], 32);
\r
1067 /*---------------------------------------------------------------------------------------------------------*/
\r
1068 /* CRC main Program */
\r
1069 /*---------------------------------------------------------------------------------------------------------*/
\r
1070 static void GenerateCRC32(unsigned char * buf, unsigned int len)
\r
1075 for (i = 0; i != len; ++i)
\r
1077 t = (oldcrc32 ^ buf[i]) & 0xFF;
\r
1078 oldcrc32 = ((oldcrc32 >> 8) & 0xFFFFFF) ^ crc32_table[t];
\r
1082 static struct file * update_file_open(char * path, mm_segment_t * old_fs_p)
\r
1084 struct file * filp = NULL;
\r
1087 filp = filp_open(path, O_RDONLY, 0644);
\r
1089 if(!filp || IS_ERR(filp))
\r
1094 errno = PTR_ERR(filp);
\r
1095 printk(KERN_ERR "The update file for Guitar open error.\n");
\r
1098 *old_fs_p = get_fs();
\r
1101 filp->f_op->llseek(filp,0,0);
\r
1105 static void update_file_close(struct file * filp, mm_segment_t old_fs)
\r
1109 filp_close(filp, NULL);
\r
1111 static int update_get_flen(char * path)
\r
1113 struct file * file_ck = NULL;
\r
1114 mm_segment_t old_fs;
\r
1117 file_ck = update_file_open(path, &old_fs);
\r
1118 if(file_ck == NULL)
\r
1121 length = file_ck->f_op->llseek(file_ck, 0, SEEK_END);
\r
1122 //printk("File length: %d\n", length);
\r
1125 update_file_close(file_ck, old_fs);
\r
1128 static int update_file_check(char * path)
\r
1130 unsigned char buffer[64] = { 0 } ;
\r
1131 struct file * file_ck = NULL;
\r
1132 mm_segment_t old_fs;
\r
1133 int count, ret, length ;
\r
1135 file_ck = update_file_open(path, &old_fs);
\r
1138 printk("File Path:%s\n", path);
\r
1140 if(file_ck == NULL)
\r
1141 return -ERROR_NO_FILE;
\r
1143 length = file_ck->f_op->llseek(file_ck, 0, SEEK_END);
\r
1144 #ifdef GUITAR_MESSAGE
\r
1145 printk(KERN_INFO "gt801 update: File length: %d\n",length);
\r
1147 if(length <= 0 || (length%4) != 0)
\r
1149 update_file_close(file_ck, old_fs);
\r
1150 return -ERROR_FILE_TYPE;
\r
1153 //set file point to the begining of the file
\r
1154 file_ck->f_op->llseek(file_ck, 0, SEEK_SET);
\r
1155 oldcrc32 = 0xFFFFFFFF;
\r
1156 init_crc32_table();
\r
1159 ret = file_ck->f_op->read(file_ck, buffer, sizeof(buffer), &file_ck->f_pos);
\r
1162 for(count = 0; count < ret; count++)
\r
1163 GenerateCRC32(&buffer[count],1);
\r
1167 update_file_close(file_ck, old_fs);
\r
1168 return -ERROR_FILE_READ;
\r
1172 oldcrc32 = ~oldcrc32;
\r
1173 #ifdef GUITAR_MESSAGE
\r
1174 printk("CRC_Check: %u\n", oldcrc32);
\r
1176 update_file_close(file_ck, old_fs);
\r
1180 unsigned char wait_slave_ready(struct rk_ts_data *ts, unsigned short *timeout)
\r
1182 unsigned char i2c_state_buf[2] = {ADDR_STA, UNKNOWN_ERROR};
\r
1184 while(*timeout < MAX_TIMEOUT)
\r
1186 ret = goodix_i2c_read_bytes(ts->client, i2c_state_buf, 2);
\r
1188 return ERROR_I2C_TRANSFER;
\r
1189 if(i2c_state_buf[1] & SLAVE_READY)
\r
1191 return i2c_state_buf[1];
\r
1200 static int goodix_update_write(struct file *filp, const char __user *buff, unsigned long len, void *data)
\r
1202 unsigned char cmd[220];
\r
1205 static unsigned char update_path[100];
\r
1206 static unsigned short time_count = 0;
\r
1207 static unsigned int file_len = 0;
\r
1209 unsigned char i2c_control_buf[2] = {ADDR_CMD, 0};
\r
1210 unsigned char i2c_states_buf[2] = {ADDR_STA, 0};
\r
1211 unsigned char i2c_data_buf[PACK_SIZE+1+8] = {ADDR_DAT,};
\r
1212 //unsigned char i2c_rd_buf[1+4+PACK_SIZE+4];
\r
1213 unsigned char i2c_rd_buf[160];
\r
1214 unsigned char retries = 0;
\r
1215 unsigned int rd_len;
\r
1216 unsigned char i = 0;
\r
1217 static unsigned char update_need_config = 0;
\r
1219 unsigned char checksum_error_times = 0;
\r
1220 #ifdef UPDATE_NEW_PROTOCOL
\r
1221 unsigned int frame_checksum = 0;
\r
1222 unsigned int frame_number = 0;
\r
1224 unsigned char send_crc = 0;
\r
1227 struct file * file_data = NULL;
\r
1228 mm_segment_t old_fs;
\r
1229 struct rk_ts_data *ts;
\r
1231 ts = i2c_get_clientdata(i2c_connect_client);
\r
1235 if(copy_from_user(&cmd, buff, len))
\r
1241 case STEP_SET_PATH:
\r
1242 printk(KERN_INFO"Write cmd is:%d,cmd arg is:%s,write len is:%ld\n",cmd[0], &cmd[1], len);
\r
1243 memset(update_path, 0, 100);
\r
1244 strncpy(update_path, cmd+1, 100);
\r
1245 if(update_path[0] == 0)
\r
1249 case STEP_CHECK_FILE:
\r
1250 printk(KERN_INFO"Begin to firmware update ......\n");
\r
1251 ret = update_file_check(update_path);
\r
1254 printk(KERN_INFO"fialed to check update file!\n");
\r
1258 printk(KERN_INFO"Update check file success!\n");
\r
1260 case STEP_WRITE_SYN:
\r
1261 printk(KERN_INFO"STEP1:Write synchronization signal!\n");
\r
1262 i2c_control_buf[1] = UPDATE_START;
\r
1263 ret = goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);
\r
1266 ret = ERROR_I2C_TRANSFER;
\r
1269 //the time include time(APROM -> LDROM) and time(LDROM init)
\r
1272 case STEP_WAIT_SYN:
\r
1273 printk(KERN_INFO"STEP2:Wait synchronization signal!\n");
\r
1274 while(retries < MAX_I2C_RETRIES)
\r
1276 i2c_states_buf[1] = UNKNOWN_ERROR;
\r
1277 ret = goodix_i2c_read_bytes(ts->client, i2c_states_buf, 2);
\r
1278 printk(KERN_INFO"The read byte is:%d\n", i2c_states_buf[1]);
\r
1279 if(i2c_states_buf[1] & UPDATE_START)
\r
1281 if(i2c_states_buf[1] & NEW_UPDATE_START)
\r
1283 #ifdef UPDATE_NEW_PROTOCOL
\r
1284 update_need_config = 1;
\r
1296 if((retries >= MAX_I2C_RETRIES) && (!(i2c_states_buf[1] & UPDATE_START)))
\r
1304 case STEP_WRITE_LENGTH:
\r
1305 printk(KERN_INFO"STEP3:Write total update file length!\n");
\r
1306 file_len = update_get_flen(update_path);
\r
1309 printk(KERN_INFO"get update file length failed!\n");
\r
1313 i2c_data_buf[1] = (file_len>>24) & 0xff;
\r
1314 i2c_data_buf[2] = (file_len>>16) & 0xff;
\r
1315 i2c_data_buf[3] = (file_len>>8) & 0xff;
\r
1316 i2c_data_buf[4] = file_len & 0xff;
\r
1318 ret = goodix_i2c_write_bytes(ts->client, i2c_data_buf, 5);
\r
1321 ret = ERROR_I2C_TRANSFER;
\r
1325 case STEP_WAIT_READY:
\r
1326 printk(KERN_INFO"STEP4:Wait slave ready!\n");
\r
1327 ret = wait_slave_ready(ts, &time_count);
\r
1328 if(ret == ERROR_I2C_TRANSFER)
\r
1334 printk(KERN_INFO"Slave ready!\n");
\r
1336 case STEP_WRITE_DATA:
\r
1337 #ifdef UPDATE_NEW_PROTOCOL
\r
1338 printk(KERN_INFO"STEP5:Begin to send file data use NEW protocol!\n");
\r
1339 file_data = update_file_open(update_path, &old_fs);
\r
1340 if(file_data == NULL)
\r
1345 while(file_len >= 0)
\r
1347 i2c_data_buf[0] = ADDR_DAT;
\r
1348 rd_len = (file_len >= PACK_SIZE) ? PACK_SIZE : file_len;
\r
1349 frame_checksum = 0;
\r
1352 ret = file_data->f_op->read(file_data, i2c_data_buf+1+4, rd_len, &file_data->f_pos);
\r
1355 printk("[GOODiX_ISP_NEW]:Read File Data Failed!\n");
\r
1358 i2c_data_buf[1] = (frame_number>>24)&0xff;
\r
1359 i2c_data_buf[2] = (frame_number>>16)&0xff;
\r
1360 i2c_data_buf[3] = (frame_number>>8)&0xff;
\r
1361 i2c_data_buf[4] = frame_number&0xff;
\r
1363 frame_checksum = 0;
\r
1364 for(i=0; i<rd_len; i++)
\r
1366 frame_checksum += i2c_data_buf[5+i];
\r
1368 frame_checksum = 0 - frame_checksum;
\r
1369 i2c_data_buf[5+rd_len+0] = frame_checksum&0xff;
\r
1370 i2c_data_buf[5+rd_len+1] = (frame_checksum>>8)&0xff;
\r
1371 i2c_data_buf[5+rd_len+2] = (frame_checksum>>16)&0xff;
\r
1372 i2c_data_buf[5+rd_len+3] = (frame_checksum>>24)&0xff;
\r
1375 printk(KERN_INFO"[GOODiX_ISP_NEW]:%d\n", file_len);
\r
1376 ret = goodix_i2c_write_bytes(ts->client, i2c_data_buf, 1+4+rd_len+4);
\r
1380 printk("[GOODiX_ISP_NEW]:Write File Data Failed!Return:%d\n", ret);
\r
1384 memset(i2c_rd_buf, 0x00, 1+4+rd_len+4);
\r
1385 ret = goodix_i2c_read_bytes(ts->client, i2c_rd_buf, 1+4+rd_len+4);
\r
1388 printk("[GOODiX_ISP_NEW]:Read File Data Failed!Return:%d\n", ret);
\r
1391 for(i=1; i<(1+4+rd_len+4); i++) //check communication
\r
1393 if(i2c_rd_buf[i] != i2c_data_buf[i])
\r
1401 i2c_control_buf[0] = ADDR_CMD;
\r
1402 i2c_control_buf[1] = 0x03;
\r
1403 goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2); //communication error
\r
1404 printk("[GOODiX_ISP_NEW]:File Data Frame readback check Error!\n");
\r
1408 i2c_control_buf[1] = 0x04; //let LDROM write flash
\r
1409 goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);
\r
1412 //Wait for slave ready signal.and read the checksum
\r
1413 ret = wait_slave_ready(ts, &time_count);
\r
1414 if((ret & CHECKSUM_ERROR)||(!i))
\r
1418 printk("[GOODiX_ISP_NEW]:File Data Frame checksum Error!\n");
\r
1420 checksum_error_times++;
\r
1422 if(checksum_error_times > 20) //max retry times.
\r
1426 checksum_error_times = 0;
\r
1427 if(ret & (FRAME_ERROR))
\r
1429 printk("[GOODiX_ISP_NEW]:File Data Frame Miss!\n");
\r
1432 if(ret == ERROR_I2C_TRANSFER)
\r
1438 if(file_len < PACK_SIZE)
\r
1440 update_file_close(file_data, old_fs);
\r
1443 file_len -= rd_len;
\r
1444 }//end of while((file_len >= 0))
\r
1447 printk(KERN_INFO"STEP5:Begin to send file data use OLD protocol!\n");
\r
1448 file_data = update_file_open(update_path, &old_fs);
\r
1449 if(file_data == NULL) //file_data has been opened at the last time
\r
1453 while((file_len >= 0) && (!send_crc))
\r
1455 printk(KERN_INFO"[GOODiX_ISP_OLD]:%d\n", file_len);
\r
1456 i2c_data_buf[0] = ADDR_DAT;
\r
1457 rd_len = (file_len >= PACK_SIZE) ? PACK_SIZE : file_len;
\r
1460 ret = file_data->f_op->read(file_data, i2c_data_buf+1, rd_len, &file_data->f_pos);
\r
1466 if(file_len < PACK_SIZE)
\r
1469 update_file_close(file_data, old_fs);
\r
1470 i2c_data_buf[file_len+1] = oldcrc32&0xff;
\r
1471 i2c_data_buf[file_len+2] = (oldcrc32>>8)&0xff;
\r
1472 i2c_data_buf[file_len+3] = (oldcrc32>>16)&0xff;
\r
1473 i2c_data_buf[file_len+4] = (oldcrc32>>24)&0xff;
\r
1474 ret = goodix_i2c_write_bytes(ts->client, i2c_data_buf, (file_len+1+4));
\r
1478 printk("[GOODiX_ISP_OLD]:Write File Data Failed!Return:%d\n", ret);
\r
1485 ret = goodix_i2c_write_bytes(ts->client, i2c_data_buf, PACK_SIZE+1);
\r
1489 printk("[GOODiX_ISP_OLD]:Write File Data Failed!Return:%d\n", ret);
\r
1493 file_len -= rd_len;
\r
1495 //Wait for slave ready signal.
\r
1496 ret = wait_slave_ready(ts, &time_count);
\r
1497 if(ret == ERROR_I2C_TRANSFER)
\r
1504 }//end of while((file_len >= 0) && (!send_crc))
\r
1507 case STEP_READ_STATUS:
\r
1508 printk(KERN_INFO"STEP6:Read update status!\n");
\r
1509 while(time_count < MAX_TIMEOUT)
\r
1511 ret = goodix_i2c_read_bytes(ts->client, i2c_states_buf, 2);
\r
1516 if(i2c_states_buf[1] & SLAVE_READY)
\r
1518 if(!(i2c_states_buf[1] &0xf0))
\r
1520 printk(KERN_INFO"The firmware updating succeed!update state:0x%x\n",i2c_states_buf[1]);
\r
1525 printk(KERN_INFO"The firmware updating failed!update state:0x%x\n",i2c_states_buf[1]);
\r
1534 case FUN_CLR_VAL: //clear the static val
\r
1537 update_need_config = 0;
\r
1539 case FUN_CMD: //functional command
\r
1540 if(cmd[1] == CMD_DISABLE_TP)
\r
1542 printk(KERN_INFO"Disable TS int!\n");
\r
1544 disable_irq(ts->irq);
\r
1546 else if(cmd[1] == CMD_ENABLE_TP)
\r
1548 printk(KERN_INFO"Enable TS int!\n");
\r
1550 enable_irq(ts->irq);
\r
1552 else if(cmd[1] == CMD_READ_VER)
\r
1554 printk(KERN_INFO"Read version!\n");
\r
1555 ts->read_mode = MODE_RD_VER;
\r
1557 else if(cmd[1] == CMD_READ_RAW)
\r
1559 printk(KERN_INFO"Read raw data!\n");
\r
1560 ts->read_mode = MODE_RD_RAW;
\r
1561 i2c_control_buf[1] = 201;
\r
1562 ret = goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2); //read raw data cmd
\r
1565 printk(KERN_INFO"Write read raw data cmd failed!\n");
\r
1570 else if(cmd[1] == CMD_READ_DIF)
\r
1572 printk(KERN_INFO"Read diff data!\n");
\r
1573 ts->read_mode = MODE_RD_DIF;
\r
1574 i2c_control_buf[1] = 202;
\r
1575 ret = goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2); //read diff data cmd
\r
1578 printk(KERN_INFO"Write read raw data cmd failed!\n");
\r
1583 else if(cmd[1] == CMD_READ_CFG)
\r
1585 printk(KERN_INFO"Read config info!\n");
\r
1586 ts->read_mode = MODE_RD_CFG;
\r
1587 rd_cfg_addr = cmd[2];
\r
1588 rd_cfg_len = cmd[3];
\r
1590 else if(cmd[1] == CMD_SYS_REBOOT)
\r
1592 printk(KERN_INFO"System reboot!\n");
\r
1595 kernel_restart(NULL);
\r
1598 case FUN_WRITE_CONFIG:
\r
1600 printk(KERN_INFO"Begin write config info!Config length:%d\n",cmd[1]);
\r
1601 for(i=3; i<cmd[1];i++)
\r
1603 //if((i-3)%5 == 0)printk("\n");
\r
1604 printk("(%d):0x%x ", i-3, cmd[i]);
\r
1608 if((cmd[2]>83)&&(cmd[2]<240)&&cmd[1])
\r
1610 checksum_error_times = 0;
\r
1612 ret = goodix_i2c_write_bytes(ts->client, cmd+2, cmd[1]);
\r
1615 printk("Write Config failed!return:%d\n",ret);
\r
1618 if(!update_need_config)return 1;
\r
1620 i2c_rd_buf[0] = cmd[2];
\r
1621 ret = goodix_i2c_read_bytes(ts->client, i2c_rd_buf, cmd[1]);
\r
1624 printk("Read Config failed!return:%d\n",ret);
\r
1627 for(i=0; i<cmd[1]; i++)
\r
1629 if(i2c_rd_buf[i] != cmd[i+2])
\r
1631 printk("Config readback check failed!\n");
\r
1638 i2c_control_buf[0] = ADDR_CMD;
\r
1639 i2c_control_buf[1] = 0x03;
\r
1640 goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2); //communication error
\r
1641 checksum_error_times++;
\r
1643 if(checksum_error_times > 20) //max retry times.
\r
1649 i2c_control_buf[0] = ADDR_CMD;
\r
1650 i2c_control_buf[1] = 0x04; //let LDROM write flash
\r
1651 goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);
\r
1658 printk(KERN_INFO"Invalid config addr!\n");
\r
1667 static int goodix_update_read( char *page, char **start, off_t off, int count, int *eof, void *data )
\r
1670 struct rk_ts_data *ts;
\r
1672 char *version_info = NULL;
\r
1673 static unsigned char read_data[1201] = {80, };
\r
1675 ts = i2c_get_clientdata(i2c_connect_client);
\r
1679 if(ts->read_mode == MODE_RD_VER) //read version data
\r
1681 ret = goodix_read_version(ts, &version_info);
\r
1684 printk(KERN_INFO"Read version data failed!\n");
\r
1685 vfree(version_info);
\r
1689 for(len=0;len<100;len++)
\r
1691 if(*(version_info + len) == '\0')
\r
1694 printk(KERN_INFO"GOODiX Touchscreen Version is:%s\n", (version_info+1));
\r
1695 strncpy(page, version_info+1, len + 1);
\r
1696 vfree(version_info);
\r
1700 else if((ts->read_mode == MODE_RD_RAW)||(ts->read_mode == MODE_RD_DIF)) //read raw data or diff
\r
1702 //printk(KERN_INFO"Read raw data\n");
\r
1703 ret = goodix_i2c_read_bytes(ts->client, read_data, 1201);
\r
1706 if(ts->read_mode == 2)
\r
1707 printk(KERN_INFO"Read raw data failed!\n");
\r
1708 if(ts->read_mode == 3)
\r
1709 printk(KERN_INFO"Read diff data failed!\n");
\r
1712 memcpy(page, read_data+1, 1200);
\r
1717 else if(ts->read_mode == MODE_RD_CFG)
\r
1719 if((rd_cfg_addr>83)&&(rd_cfg_addr<240))
\r
1721 read_data[0] = rd_cfg_addr;
\r
1722 printk("read config addr is:%d\n", rd_cfg_addr);
\r
1726 read_data[0] = 101;
\r
1727 printk("invalid read config addr,use default!\n");
\r
1729 if((rd_cfg_len<0)||(rd_cfg_len>156))
\r
1731 printk("invalid read config length,use default!\n");
\r
1732 rd_cfg_len = 239 - read_data[0];
\r
1734 printk("read config length is:%d\n", rd_cfg_len);
\r
1735 ret = goodix_i2c_read_bytes(ts->client, read_data, rd_cfg_len);
\r
1738 printk(KERN_INFO"Read config info failed!\n");
\r
1741 memcpy(page, read_data+1, rd_cfg_len);
\r
1742 return rd_cfg_len;
\r
1748 //******************************End of firmware update surpport*******************************
\r
1749 static const struct i2c_device_id goodix_ts_id[] = {
\r
1750 { "Goodix-TS", 0 },
\r
1754 static struct i2c_driver rk_ts_driver = {
\r
1755 .probe = rk_ts_probe,
\r
1756 .remove = rk_ts_remove,
\r
1757 .shutdown = rk_ts_shutdown,
\r
1758 #ifndef CONFIG_HAS_EARLYSUSPEND
\r
1759 .suspend = rk_ts_suspend,
\r
1760 .resume = rk_ts_resume,
\r
1762 .id_table = goodix_ts_id,
\r
1764 .name = "Goodix-TS",
\r
1765 .owner = THIS_MODULE,
\r
1770 static struct class *ts_debug_class = NULL;
\r
1771 static ssize_t dbg_mode_show(struct class *cls,struct class_attribute *attr, char *_buf)
\r
1773 printk("%s>>>>>>>>\n",__func__);
\r
1777 static ssize_t dbg_mode_store(struct class *cls,struct class_attribute *attr, const char *buf, size_t _count)
\r
1779 dbg_thresd = simple_strtol(buf,NULL,10);
\r
1782 printk(KERN_INFO "ts debug open\n");
\r
1786 printk(KERN_INFO "ts debug close");
\r
1791 static CLASS_ATTR(debug, 0664, dbg_mode_show, dbg_mode_store);
\r
1793 static int dbg_sys_init(void)
\r
1796 ts_debug_class = class_create(THIS_MODULE, "ts_debug");
\r
1797 ret = class_create_file(ts_debug_class, &class_attr_debug);
\r
1800 printk("Fail to creat class hkrkfb.\n");
\r
1806 /*******************************************************
\r
1808 Driver Install function.
\r
1810 Executive Outcomes. 0---succeed.
\r
1811 ********************************************************/
\r
1813 static void __init rk_ts_init_async(void *unused, async_cookie_t cookie)
\r
1815 i2c_add_driver(&rk_ts_driver);
\r
1816 dbg_sys_init(); //for debug
\r
1819 static int __init rk_ts_init(void)
\r
1821 async_schedule(rk_ts_init_async, NULL);
\r
1825 /*******************************************************
\r
1827 Driver uninstall function.
\r
1829 Executive Outcomes. 0---succeed.
\r
1830 ********************************************************/
\r
1831 static void __exit rk_ts_exit(void)
\r
1833 printk(KERN_ALERT "Touchscreen driver of guitar exited.\n");
\r
1834 i2c_del_driver(&rk_ts_driver);
\r
1837 module_init(rk_ts_init);
\r
1838 module_exit(rk_ts_exit);
\r
1840 MODULE_DESCRIPTION("Goodix Touchscreen Driver");
\r
1841 MODULE_LICENSE("GPL");
\r