drivers/input/touchscreen/rk29_i2c_goodix.c

   1 /* drivers/input/touchscreen/goodix_touch.c\r
   2  *\r
   3  * Copyright (C) 2010 - 2011 Goodix, Inc.\r
   4  * \r
   5  * This program is free software; you can redistribute it and/or modify\r
   6  * it under the terms of the GNU General Public License as published by\r
   7  * the Free Software Foundation; either version 2 of the License, or\r
   8  * (at your option) any later version.\r
   9  *\r
  10  * This program is distributed in the hope that it will be useful, but WITHOUT\r
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or\r
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for\r
  13  * more details.\r
  14  *\r
  15  */\r
  16 #include <linux/kernel.h>\r
  17 #include <linux/module.h>\r
  18 #include <linux/time.h>\r
  19 #include <linux/delay.h>\r
  20 #include <linux/device.h>\r
  21 #include <linux/earlysuspend.h>\r
  22 #include <linux/hrtimer.h>\r
  23 #include <linux/i2c.h>\r
  24 #include <linux/input.h>\r
  25 #include <linux/input/mt.h>\r
  26 \r
  27 #include <linux/interrupt.h>\r
  28 #include <linux/io.h>\r
  29 #include <linux/platform_device.h>\r
  30 #include <mach/gpio.h>\r
  31 \r
  32 #include <linux/irq.h>\r
  33 #include <linux/syscalls.h>\r
  34 #include <linux/reboot.h>\r
  35 #include <linux/proc_fs.h>\r
  36 #include "rk29_i2c_goodix.h"\r
  37 \r
  38 #include <linux/vmalloc.h>\r
  39 #include <linux/fs.h>\r
  40 #include <linux/string.h>\r
  41 #include <linux/completion.h>\r
  42 #include <asm/uaccess.h>\r
  43 #include <mach/board.h>\r
  44 \r
  45 #define PEN_DOWN 1\r
  46 #define PEN_RELEASE 0\r
  47 #define PEN_DOWN_UP 2 //fjp\r
  48 \r
  49 static struct rk_touch_info *info_buf;\r
  50 \r
  51 static int dbg_thresd = 0;\r
  52 #define DBG(x...) do { if(unlikely(dbg_thresd)) printk(KERN_INFO x); } while (0)\r
  53 \r
  54 \r
  55 /*******************************************************        \r
  56 Description:\r
  57         Read data from the i2c slave device;\r
  58         This operation consisted of 2 i2c_msgs,the first msg used\r
  59         to write the operate address,the second msg used to read data.\r
  60 \r
  61 Parameter:\r
  62         client: i2c device.\r
  63         buf[0]:operate address.\r
  64         buf[1]~buf[len]:read data buffer.\r
  65         len:operate length.\r
  66         \r
  67 return:\r
  68         numbers of i2c_msgs to transfer\r
  69 *********************************************************/\r
  70 static int goodix_i2c_read_bytes(struct i2c_client *client, uint8_t *buf, int len)\r
  71 {\r
  72         struct i2c_msg msgs[2];\r
  73         int ret=-1;\r
  74         int retries = 0;\r
  75 \r
  76         msgs[0].flags = client->flags;\r
  77         msgs[0].addr=client->addr;\r
  78         msgs[0].len=1;\r
  79         msgs[0].buf=&buf[0];\r
  80         msgs[0].udelay = client->udelay;\r
  81         msgs[0].scl_rate=200 * 1000;\r
  82 \r
  83         msgs[1].flags = client->flags | I2C_M_RD;\r
  84         msgs[1].addr=client->addr;\r
  85         msgs[1].len=len-1;\r
  86         msgs[1].buf=&buf[1];\r
  87         msgs[1].udelay = client->udelay;\r
  88         msgs[1].scl_rate=200 * 1000;\r
  89 \r
  90         //disable_irq(client->irq);\r
  91         while(retries<5)\r
  92         {\r
  93                 ret=i2c_transfer(client->adapter,msgs, 2);\r
  94                 if(ret == 2)break;\r
  95                 retries++;\r
  96         }\r
  97         //enable_irq(client->irq);\r
  98         return ret;\r
  99 }\r
 100 \r
 101 /*******************************************************        \r
 102 Description:\r
 103         write data to the i2c slave device.\r
 104 \r
 105 Parameter:\r
 106         client: i2c device.\r
 107         buf[0]:operate address.\r
 108         buf[1]~buf[len]:write data buffer.\r
 109         len:operate length.\r
 110         \r
 111 return:\r
 112         numbers of i2c_msgs to transfer.\r
 113 *********************************************************/\r
 114 static int goodix_i2c_write_bytes(struct i2c_client *client,uint8_t *data,int len)\r
 115 {\r
 116         struct i2c_msg msg;\r
 117         int ret=-1;\r
 118         int retries = 0;\r
 119 \r
 120         msg.flags=!I2C_M_RD;\r
 121         msg.addr=client->addr;\r
 122         msg.len=len;\r
 123         msg.buf=data;           \r
 124         msg.udelay = client->udelay;\r
 125         msg.scl_rate=200 * 1000;\r
 126         \r
 127         //disable_irq(client->irq);\r
 128         while(retries<5)\r
 129         {\r
 130                 ret=i2c_transfer(client->adapter,&msg, 1);\r
 131                 if(ret == 1)break;\r
 132                 retries++;\r
 133         }\r
 134         //enable_irq(client->irq);\r
 135         return ret;\r
 136 }\r
 137 \r
 138 /*******************************************************\r
 139 Description:\r
 140         Goodix touchscreen initialize function.\r
 141 \r
 142 Parameter:\r
 143         ts:     i2c client private struct.\r
 144         \r
 145 return:\r
 146         Executive outcomes.0---succeed.\r
 147 *******************************************************/\r
 148 static int goodix_init_panel(struct rk_ts_data *ts)\r
 149 {\r
 150         int ret=-1;\r
 151         uint8_t rd_cfg_buf[7] = {0x66,};\r
 152 \r
 153 #ifdef GOODIX_1024X768                  //for malata 10.1\r
 154              uint8_t config_info[] = {\r
 155                   0x65,0x02,0x04,0x00,0x03,0x00,0x0A,0x22,0x1E,0xE7,0x32,0x05,0x08,0x10,0x4C,\r
 156                   0x41,0x41,0x20,0x09,0x00,0xA0,0xA0,0x3C,0x64,0x0E,0x0D,0x0C,0x0B,0x0A,0x09,\r
 157                   0x08,0x07,0x06,0x05,0x04,0x03,0x02,0x01,0x00,0x1D,0x1C,0x1B,0x1A,0x19,0x18,\r
 158                   0x17,0x16,0x15,0x14,0x13,0x12,0x11,0x10,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,\r
 159                   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x2B,0x00,0x00,0x00,0x00,0x00,0x00,0x00,\r
 160                   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00\r
 161                 };\r
 162              \r
 163 #else\r
 164                 };*/\r
 165           uint8_t config_info[] = {\r
 166                   0x65,0x02,0x05,0x00,0x03,0x20,0x0A,0x22,0x1E,0xE7,0x32,0x05,0x08,0x10,0x4C,\r
 167                                         0x42,0x42,0x20,0x00,0x00,0x89,0x89,0x3C,0x64,0x0E,0x0D,0x0C,0x0B,\r
 168                                         0x0A,0x09,0x08,0x07,0x06,0x05,0x04,0x03,0x02,0x01,0x00,0x1D,0x1C,\r
 169                                         0x1B,0x1A,0x19,0x18,0x17,0x16,0x15,0x14,0x13,0x12,0x11,0x10,0x0F,\r
 170                                         0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,\r
 171                                         0x2B,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,\r
 172                                         0x00,0x00,0x00,0x00\r
 173                 };\r
 174 #endif\r
 175         ret=goodix_i2c_write_bytes(ts->client,config_info, (sizeof(config_info)/sizeof(config_info[0])));\r
 176         if (ret < 0) {\r
 177                 printk("goodix write cfg info err");\r
 178                 return ret;\r
 179         }\r
 180         ret=goodix_i2c_read_bytes(ts->client, rd_cfg_buf, 7);\r
 181         if(ret != 2)\r
 182         {\r
 183                 dev_info(&ts->client->dev, "Read resolution & max_touch_num failed, use default value!\n");\r
 184                 ts->max_touch_num = MAX_FINGER_NUM;\r
 185                 //ts->int_trigger_type = INT_TRIGGER;\r
 186                 return 0;\r
 187         }\r
 188         ts->abs_x_max = (rd_cfg_buf[1]<<8) + rd_cfg_buf[2];\r
 189         ts->abs_y_max = (rd_cfg_buf[3]<<8) + rd_cfg_buf[4];\r
 190         ts->max_touch_num = rd_cfg_buf[5];\r
 191         //ts->int_trigger_type = rd_cfg_buf[6]&0x03;\r
 192         if((!ts->abs_x_max)||(!ts->abs_y_max)||(!ts->max_touch_num))\r
 193         {\r
 194                 printk(KERN_INFO "Read invalid resolution & max_touch_num, use default value!\n");\r
 195                 ts->max_touch_num = MAX_FINGER_NUM;\r
 196         }\r
 197 \r
 198         printk(KERN_INFO "X_MAX = %d,Y_MAX = %d,MAX_TOUCH_NUM = %d\n",ts->abs_x_max,ts->abs_y_max,ts->max_touch_num);\r
 199         \r
 200         rd_cfg_buf[0] = 0x6e;\r
 201         rd_cfg_buf[1] = 0x00;\r
 202         goodix_i2c_read_bytes(ts->client, rd_cfg_buf, 2);\r
 203         if((rd_cfg_buf[1]&0x0f)==0x0f)\r
 204         {\r
 205                 dev_info(&ts->client->dev, "Need int wake up from green mode!\n");\r
 206         }\r
 207 \r
 208         return 0;\r
 209 \r
 210 }\r
 211 \r
 212 //fjp add ===============================\r
 213 static bool goodix_get_status(char *p1,int*p2)\r
 214 {\r
 215         bool status = PEN_DOWN;\r
 216         if((*p2==PEN_DOWN) && (*p1==PEN_RELEASE))\r
 217                 {\r
 218                         *p2 = PEN_DOWN_UP; //¸Õ¸Õµ¯Æð\r
 219                          status = PEN_RELEASE; \r
 220                 }\r
 221         else if((*p2==PEN_RELEASE) && (*p1==PEN_RELEASE))\r
 222                 {\r
 223                    *p2 = PEN_RELEASE;\r
 224                         status = PEN_RELEASE; \r
 225                 }\r
 226         else\r
 227                 {\r
 228                         *p2 = PEN_DOWN;\r
 229                 }\r
 230         return status;\r
 231 }\r
 232 \r
 233 //===================================\r
 234 /*******************************************************\r
 235 Description:\r
 236         Read goodix touchscreen version function.\r
 237 \r
 238 Parameter:\r
 239         ts:     i2c client private struct.\r
 240         \r
 241 return:\r
 242         Executive outcomes.0---succeed.\r
 243 *******************************************************/\r
 244 static int  goodix_read_version(struct rk_ts_data *ts, char **version)\r
 245 {\r
 246         int ret = -1, count = 0;\r
 247         char *version_data;\r
 248         char *p;\r
 249 \r
 250         *version = (char *)vmalloc(18);\r
 251         version_data = *version;\r
 252         if(!version_data)\r
 253                 return -ENOMEM;\r
 254         p = version_data;\r
 255         memset(version_data, 0, sizeof(version_data));\r
 256         version_data[0]=240;    \r
 257         ret=goodix_i2c_read_bytes(ts->client,version_data, 17);\r
 258         if (ret < 0) \r
 259                 return ret;\r
 260         version_data[17]='\0';\r
 261         \r
 262         if(*p == '\0')\r
 263                 return 0;       \r
 264         do                                      \r
 265         {\r
 266                 if((*p > 122) || (*p < 48 && *p != 32) || (*p >57 && *p  < 65) \r
 267                         ||(*p > 90 && *p < 97 && *p  != '_'))           //check illeqal character\r
 268                         count++;\r
 269         }while(*++p != '\0' );\r
 270         if(count > 2)\r
 271                 return 0;\r
 272         else \r
 273                 return 1;       \r
 274 }\r
 275 \r
 276 static int last_touch_num = -1;\r
 277 static void goodix_get_touch_info(struct rk_ts_data *ts,char *point_num,struct rk_touch_info* info_buf)\r
 278 {\r
 279         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)\r
 280         uint8_t  check_sum = 0;\r
 281         int ret ;\r
 282         uint16_t  finger_current = 0;\r
 283         uint16_t  finger_bit = 0;\r
 284         unsigned int  count = 0, point_count = 0;\r
 285         unsigned char touch_num = 0;\r
 286         uint8_t chksum_err = 0;\r
 287         unsigned int position = 0;      \r
 288         uint8_t track_id[MAX_FINGER_NUM] = {0};\r
 289         u8 index;\r
 290         u8 temp =0;\r
 291         point_data[0] = READ_COOR_ADDR;         //read coor address\r
 292 \r
 293         \r
 294         ret=goodix_i2c_read_bytes(ts->client, point_data, sizeof(point_data)/sizeof(point_data[0]));\r
 295         if(ret != 2)    \r
 296         {\r
 297             printk("goodix read error\n");\r
 298         }       \r
 299         finger_current =  (point_data[3 - READ_COOR_ADDR]<<8) + point_data[2 - READ_COOR_ADDR];\r
 300         \r
 301         DBG("finger_current:%d ==== max_touch_num:%d\n", finger_current,ts->max_touch_num);//add by fjp 2010-9-28\r
 302         \r
 303 \r
 304         if(finger_current)\r
 305         {       \r
 306                 point_count = 0;\r
 307                 finger_bit = finger_current;\r
 308                 for(count = 0; (finger_bit != 0) && (count < ts->max_touch_num); count++)//cal how many point touch currntly\r
 309                 {\r
 310                         if(finger_bit & 0x01)\r
 311                         {\r
 312                                 track_id[count] = PEN_DOWN;\r
 313                                 point_count++;\r
 314                         }\r
 315                         finger_bit >>= 1;\r
 316                 }\r
 317                 touch_num = point_count;\r
 318 \r
 319                 check_sum = point_data[2 - READ_COOR_ADDR] + point_data[3 - READ_COOR_ADDR];                    //cal coor checksum\r
 320                 count = 4 - READ_COOR_ADDR;\r
 321                 for(point_count *= 5; point_count > 0; point_count--)\r
 322                         check_sum += point_data[count++];\r
 323                 check_sum += point_data[count];\r
 324                 if(check_sum  != 0)                     //checksum verify error\r
 325                 {\r
 326                         printk("coor checksum error!\n");\r
 327                 }\r
 328                 else\r
 329                 {\r
 330                         chksum_err = 0;\r
 331                 }\r
 332         }\r
 333 \r
 334         //printk("current point num:%d\n",touch_num);\r
 335         *point_num = touch_num;\r
 336         if(touch_num < last_touch_num)  //some flinger release\r
 337         {\r
 338                 //printk("%d flinger release\n",last_touch_num-touch_num);\r
 339                 /*for(index = touch_num; index < last_touch_num; index++)\r
 340                         info_buf[index].status = 0;*/\r
 341                 *point_num = last_touch_num;\r
 342                  touch_num = last_touch_num;\r
 343         }\r
 344         last_touch_num = touch_num;\r
 345         for(index = 0; index < touch_num; index++)\r
 346         {\r
 347              if(goodix_get_status(&track_id[index],&info_buf[index].status))\r
 348                 {\r
 349                 position = 4 - READ_COOR_ADDR + 5*(temp++);\r
 350                 info_buf[index].x = (unsigned int) (point_data[position]<<8) + (unsigned int)( point_data[position+1]);\r
 351                 info_buf[index].y  = (unsigned int)(point_data[position+2]<<8) + (unsigned int) (point_data[position+3]);\r
 352                 info_buf[index].press = (unsigned int) (point_data[position+4]);        \r
 353                 }\r
 354         }\r
 355         \r
 356 }\r
 357 \r
 358 \r
 359 /*******************************************************\r
 360 Description:\r
 361         Goodix touchscreen work function.\r
 362 \r
 363 Parameter:\r
 364         ts:     i2c client private struct.\r
 365         \r
 366 return:\r
 367         Executive outcomes.0---succeed.\r
 368 *******************************************************/\r
 369 static void  rk_ts_work_func(struct work_struct *pwork)\r
 370 {       \r
 371         int i =0;\r
 372         //struct rk_touch_info *info_buf;\r
 373         char point_num;\r
 374         struct rk_ts_data *ts = container_of(to_delayed_work(pwork), struct rk_ts_data, ts_work);\r
 375         if(!ts)\r
 376         {\r
 377                 printk("container of rk_ts_data fail\n");\r
 378         }\r
 379         \r
 380 //      info_buf= kzalloc(ts->max_touch_num*sizeof(struct rk_touch_info), GFP_KERNEL);\r
 381 //      if(!info_buf)\r
 382         //{\r
 383 //              printk(KERN_ALERT "alloc for rk_touch_info fail\n");\r
 384 //              goto exit;\r
 385         //}\r
 386 \r
 387         if(ts->get_touch_info)\r
 388         {\r
 389                  ts->get_touch_info(ts,&point_num,info_buf);\r
 390         }\r
 391         for(i=0; i< point_num; i++)\r
 392         {\r
 393            DBG("info_buf[i].status =====%d\n",info_buf[i].status);\r
 394               if(info_buf[i].status==PEN_DOWN_UP)\r
 395                 {\r
 396                        info_buf[i].status=PEN_RELEASE;\r
 397                            DBG("the key %d is up------\n",i);\r
 398                         input_mt_slot(ts->input_dev, i);\r
 399                         input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, false);\r
 400                         continue;\r
 401                 }\r
 402                 if(info_buf[i].status==PEN_DOWN)\r
 403                 {\r
 404                         input_mt_slot(ts->input_dev, i);\r
 405                         input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);\r
 406                         input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, info_buf[i].press);\r
 407                         input_report_abs(ts->input_dev, ABS_MT_POSITION_X, info_buf[i].x);\r
 408                         input_report_abs(ts->input_dev, ABS_MT_POSITION_Y, info_buf[i].y);\r
 409                         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 \r
 410                 }\r
 411                 \r
 412        \r
 413           \r
 414                 \r
 415                 \r
 416         }\r
 417         input_sync(ts->input_dev);\r
 418         \r
 419     if(gpio_get_value(ts->irq_pin) == GPIO_LOW)\r
 420     {\r
 421        \r
 422         DBG("touch down .............\n");//add by fjp 2010-9-28\r
 423         queue_delayed_work(ts->ts_wq, &ts->ts_work,msecs_to_jiffies(20));\r
 424         //      goto exit;\r
 425                 \r
 426     }\r
 427     else\r
 428     {\r
 429                 \r
 430         DBG("touch up>>x:%d>>y:%d\n",info_buf[0].x,info_buf[0].y);//add by fjp 2010-9-28\r
 431                 /*input_mt_slot(ts->input_dev, 0);\r
 432                 input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);\r
 433                 input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);\r
 434                 \r
 435                 input_mt_slot(ts->input_dev, 0);\r
 436                 input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, false);*/\r
 437 \r
 438                 DBG("point_num+++++++++++ = %d\n", point_num);//add by fjp 2010-9-28\r
 439                 for(i=0; i< point_num; i++)\r
 440                 {\r
 441         //        printk("info_buf[i].status +++++++%d\n",info_buf[i].status);\r
 442                          if(info_buf[i].status)\r
 443                         {\r
 444                       input_mt_slot(ts->input_dev, i);//°´ÐòºÅÉÏ±¨\r
 445                         input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, false);               \r
 446                         //input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0);\r
 447                         info_buf[i].status= PEN_RELEASE;\r
 448                         \r
 449 \r
 450                         DBG("release+++++++++++ = %d\n", i);//add by fjp 2010-9-28\r
 451 \r
 452                         }\r
 453                 }\r
 454                 input_sync(ts->input_dev);\r
 455                 ts->pendown =PEN_RELEASE;\r
 456                 last_touch_num = 0;\r
 457                 \r
 458         enable_irq(ts->irq);            \r
 459       }\r
 460          \r
 461       \r
 462 //exit:\r
 463           //kfree(info_buf);\r
 464           \r
 465   }\r
 466         \r
 467         \r
 468         \r
 469 \r
 470 /*******************************************************\r
 471 Description:\r
 472         Timer interrupt service routine.\r
 473 \r
 474 Parameter:\r
 475         timer:  timer struct pointer.\r
 476         \r
 477 return:\r
 478         Timer work mode. HRTIMER_NORESTART---not restart mode\r
 479 *******************************************************/\r
 480 static enum hrtimer_restart goodix_ts_timer_func(struct hrtimer *timer)\r
 481 {\r
 482         struct rk_ts_data *ts = container_of(timer, struct rk_ts_data, timer);\r
 483         queue_delayed_work(goodix_wq,&ts->ts_work,0);\r
 484         hrtimer_start(&ts->timer, ktime_set(0, (POLL_TIME+6)*1000000), HRTIMER_MODE_REL);\r
 485         return HRTIMER_NORESTART;\r
 486 }\r
 487 \r
 488 /*******************************************************\r
 489 Description:\r
 490         External interrupt service routine.\r
 491 \r
 492 Parameter:\r
 493         irq:    interrupt number.\r
 494         dev_id: private data pointer.\r
 495         \r
 496 return:\r
 497         irq execute status.\r
 498 *******************************************************/\r
 499 static irqreturn_t rk_ts_irq_handler(int irq, void *dev_id)\r
 500 {\r
 501 \r
 502         struct rk_ts_data *ts = (struct rk_ts_data*)dev_id;\r
 503         disable_irq_nosync(ts->irq);\r
 504         queue_delayed_work(ts->ts_wq, &ts->ts_work,0);\r
 505         \r
 506         return IRQ_HANDLED;\r
 507 }\r
 508 \r
 509 static int rk_ts_suspend(struct i2c_client *client, pm_message_t mesg)\r
 510 {\r
 511         int ret;\r
 512         struct rk_ts_data *ts = i2c_get_clientdata(client);\r
 513 \r
 514        \r
 515         \r
 516         disable_irq(ts->irq);\r
 517         \r
 518 #if 1\r
 519         if (ts->power) {\r
 520                 ret = ts->power(ts, 0);\r
 521                 if (ret < 0)\r
 522                         printk(KERN_ERR "goodix_ts_resume power off failed\n");\r
 523         }\r
 524 #endif\r
 525         return 0;\r
 526 }\r
 527 \r
 528 static int rk_ts_resume(struct i2c_client *client)\r
 529 {\r
 530         int ret;\r
 531         struct rk_ts_data *ts = i2c_get_clientdata(client);\r
 532         \r
 533 #if 1\r
 534         if (ts->power) {\r
 535                 ret = ts->power(ts, 1);\r
 536                 if (ret < 0)\r
 537                         printk(KERN_ERR "goodix_ts_resume power on failed\n");\r
 538         }\r
 539 #endif\r
 540         \r
 541         enable_irq(client->irq);\r
 542 \r
 543         return 0;\r
 544 }\r
 545 \r
 546 \r
 547 \r
 548 #ifdef CONFIG_HAS_EARLYSUSPEND\r
 549 static void rk_ts_early_suspend(struct early_suspend *h)\r
 550 {\r
 551         struct rk_ts_data *ts;\r
 552         ts = container_of(h, struct rk_ts_data, early_suspend);\r
 553         rk_ts_suspend(ts->client, PMSG_SUSPEND);\r
 554 }\r
 555 \r
 556 static void rk_ts_late_resume(struct early_suspend *h)\r
 557 {\r
 558         struct rk_ts_data *ts;\r
 559         ts = container_of(h, struct rk_ts_data, early_suspend);\r
 560         rk_ts_resume(ts->client);\r
 561 }\r
 562 #endif\r
 563 \r
 564 /*******************************************************\r
 565 Description:\r
 566         Goodix touchscreen power manage function.\r
 567 \r
 568 Parameter:\r
 569         on:     power status.0---suspend;1---resume.\r
 570         \r
 571 return:\r
 572         Executive outcomes.-1---i2c transfer error;0---succeed.\r
 573 *******************************************************/\r
 574 static int goodix_ts_power(struct rk_ts_data * ts, int on)\r
 575 {\r
 576         int ret = -1;\r
 577         unsigned char i2c_control_buf[2] = {80,  1};            //suspend cmd\r
 578         int retry = 0;\r
 579         if(on != 0 && on !=1)\r
 580         {\r
 581                 printk(KERN_DEBUG "%s: Cant't support this command.", rk_ts_name);\r
 582                 return -EINVAL;\r
 583         }\r
 584         \r
 585         \r
 586         if(on == 0)             //suspend\r
 587         { \r
 588         while(retry<5)\r
 589                 {\r
 590                         ret = goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);\r
 591                         if(ret == 1)\r
 592                         {\r
 593                                 printk(KERN_INFO"touch goodix Send suspend cmd successed \n");\r
 594                                 break;\r
 595                         }\r
 596                        retry++;\r
 597                         msleep(10);\r
 598                 }\r
 599                 if(ret > 0)\r
 600                   ret = 0;\r
 601         }\r
 602         else if(on == 1)                //resume\r
 603         {\r
 604                 printk(KERN_INFO"touch goodix int resume\n");\r
 605                 gpio_set_value(ts->rst_pin,GPIO_LOW);   \r
 606                 msleep(20);\r
 607             gpio_set_value(ts->rst_pin,GPIO_HIGH);\r
 608                 ret = 0;\r
 609         }        \r
 610         return ret;\r
 611 }\r
 612 \r
 613 \r
 614 static int goodix_input_params_init(struct rk_ts_data *ts)\r
 615 {\r
 616         int ret ;\r
 617         ts->input_dev = input_allocate_device();\r
 618         if (ts->input_dev == NULL) {\r
 619                 ret = -ENOMEM;\r
 620                 printk(KERN_ALERT "Failed to allocate input device\n");\r
 621                 return ret;\r
 622         }\r
 623 \r
 624 \r
 625         __set_bit(INPUT_PROP_DIRECT, ts->input_dev->propbit);\r
 626         __set_bit(EV_ABS, ts->input_dev->evbit);\r
 627 \r
 628         input_mt_init_slots(ts->input_dev, ts->max_touch_num);\r
 629         input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);\r
 630         input_set_abs_params(ts->input_dev, ABS_MT_POSITION_X, 0, ts->abs_x_max, 0, 0);\r
 631         input_set_abs_params(ts->input_dev, ABS_MT_POSITION_Y, 0, ts->abs_y_max, 0, 0);\r
 632         sprintf(ts->phys, "input/rkts");\r
 633         ts->input_dev->name = rk_ts_name;\r
 634         ts->input_dev->phys = ts->phys;\r
 635         ts->input_dev->id.bustype = BUS_I2C;\r
 636         ts->input_dev->id.vendor = 0xDEAD;\r
 637         ts->input_dev->id.product = 0xBEEF;\r
 638         ts->input_dev->id.version = 10427;      //screen firmware version\r
 639         \r
 640         ret = input_register_device(ts->input_dev);\r
 641         if (ret) {\r
 642                 printk(KERN_ALERT "Probe: Unable to register %s input device\n", ts->input_dev->name);\r
 643                 return -1;\r
 644         }\r
 645 \r
 646         return 0 ;\r
 647         \r
 648 }\r
 649         \r
 650 static int goodix_ts_init(struct rk_ts_data *ts)\r
 651 {\r
 652         char retry;\r
 653         char ret ;\r
 654         char test_data = 1;\r
 655         char *version_info = NULL;\r
 656         for(retry=0;retry < 30; retry++)    //test goodix\r
 657         {\r
 658                 ret =goodix_i2c_write_bytes(ts->client, &test_data, 1);\r
 659                 if (ret > 0)\r
 660                         break;\r
 661         }\r
 662         if(ret <= 0)\r
 663         {\r
 664                 printk(KERN_INFO "I2C communication ERROR!Goodix touchscreen driver become invalid\n");\r
 665                 return -1;\r
 666         }       \r
 667         \r
 668         \r
 669         ret=goodix_init_panel(ts);\r
 670         if(ret != 0) {\r
 671                 printk("goodix panel init fail\n");\r
 672                 return -1;\r
 673         }\r
 674         else\r
 675         {\r
 676                 printk(KERN_INFO "%s>>>>>>>max_point %d\n",__func__,ts->max_touch_num);\r
 677         }\r
 678         ret = goodix_read_version(ts, &version_info);\r
 679         if(ret <= 0)\r
 680         {\r
 681                 printk(KERN_INFO"Read version data failed!\n");\r
 682         }\r
 683         else\r
 684         {\r
 685                 printk(KERN_INFO"Goodix TouchScreen Version:%s>>>max_point:%d\n", (version_info+1),ts->max_touch_num);\r
 686         }\r
 687         vfree(version_info);\r
 688         #ifdef CONFIG_TOUCHSCREEN_GOODIX_IAP\r
 689         goodix_proc_entry = create_proc_entry("goodix-update", 0666, NULL);\r
 690         if(goodix_proc_entry == NULL)\r
 691         {\r
 692                 printk("Couldn't create proc entry!\n");\r
 693                 ret = -ENOMEM;\r
 694                 return ret ;\r
 695         }\r
 696         else\r
 697         {\r
 698                 printk("Create proc entry success!\n");\r
 699                 goodix_proc_entry->write_proc = goodix_update_write;\r
 700                 goodix_proc_entry->read_proc = goodix_update_read;\r
 701                 //goodix_proc_entry->owner = THIS_MODULE;\r
 702         }\r
 703 #endif\r
 704 \r
 705         return 0;\r
 706 }\r
 707 /*******************************************************\r
 708 Description:\r
 709         Goodix touchscreen probe function.\r
 710 \r
 711 Parameter:\r
 712         client: i2c device struct.\r
 713         id:device id.\r
 714         \r
 715 return:\r
 716         Executive outcomes. 0---succeed.\r
 717 *******************************************************/\r
 718 static int rk_ts_probe(struct i2c_client *client, const struct i2c_device_id *id)\r
 719 {\r
 720         int ret = 0;\r
 721         struct rk_ts_data *ts;\r
 722         struct goodix_platform_data *pdata ;\r
 723         \r
 724         printk(KERN_INFO "Install touch driver.\n");\r
 725         if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) \r
 726         {\r
 727                 dev_err(&client->dev, "Must have I2C_FUNC_I2C.\n");\r
 728                 ret = -ENODEV;\r
 729                 goto exit;\r
 730         }\r
 731 \r
 732         ts = kzalloc(sizeof(struct rk_ts_data), GFP_KERNEL);\r
 733         if (ts == NULL) {\r
 734                 printk(KERN_ALERT "alloc for struct rk_ts_data fail\n");\r
 735                 ret = -ENOMEM;\r
 736                 goto exit;\r
 737         }\r
 738 \r
 739         pdata = client->dev.platform_data;\r
 740         ts->irq_pin = pdata->irq_pin;\r
 741         ts->rst_pin = pdata->rest_pin;\r
 742         ts->pendown =PEN_RELEASE;\r
 743         ts->client = client;\r
 744         ts->ts_init = goodix_ts_init;   \r
 745         ts->power = goodix_ts_power;\r
 746         ts->get_touch_info = goodix_get_touch_info;\r
 747         ts->input_parms_init = goodix_input_params_init;\r
 748         i2c_set_clientdata(client, ts);\r
 749         \r
 750 \r
 751         if (pdata->init_platform_hw)\r
 752         {\r
 753                 pdata->init_platform_hw();\r
 754         }\r
 755 \r
 756         if(ts->ts_init)\r
 757         {\r
 758                 ret = ts->ts_init(ts);\r
 759                 if(ret < 0)\r
 760                 {\r
 761                         printk(KERN_ALERT "rk ts init fail\n");\r
 762                         goto exit;\r
 763                 }\r
 764         }\r
 765 \r
 766         if(ts->input_parms_init)\r
 767         {\r
 768                 ts->input_parms_init(ts);\r
 769         }\r
 770 \r
 771         i2c_connect_client = client;\r
 772         #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,32)\r
 773                 ts->ts_wq= create_rt_workqueue("rk_ts_wq");             //create a work queue and worker thread\r
 774         #else\r
 775                 ts->ts_wq= create_workqueue("rk_ts_wq"); \r
 776         #endif\r
 777         if (!ts->ts_wq){\r
 778                 printk(KERN_ALERT "creat touch screen workqueue failed\n");\r
 779             return -ENOMEM;\r
 780         }\r
 781         \r
 782         INIT_DELAYED_WORK(&ts->ts_work, rk_ts_work_func);\r
 783 #ifdef CONFIG_HAS_EARLYSUSPEND\r
 784         ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;\r
 785         ts->early_suspend.suspend = rk_ts_early_suspend;\r
 786         ts->early_suspend.resume = rk_ts_late_resume;\r
 787         register_early_suspend(&ts->early_suspend);\r
 788 #endif\r
 789         \r
 790         ts->irq=gpio_to_irq(ts->irq_pin)        ;               //If not defined in client\r
 791         if (ts->irq)\r
 792         {\r
 793                 ret = gpio_request(pdata->irq_pin, "TS_IRQ_PIN");       //Request IO\r
 794                 if (ret < 0) \r
 795                 {\r
 796                         printk(KERN_ALERT "Failed to request for touch irq\n");\r
 797                         goto err_input_register_device_failed;\r
 798                 }\r
 799                 else\r
 800                 {\r
 801                         gpio_direction_input(pdata->irq_pin);\r
 802                 }\r
 803 \r
 804                 ret  = request_irq(ts->irq, rk_ts_irq_handler ,IRQ_TYPE_LEVEL_LOW,client->name, ts);\r
 805                 if (ret != 0) {\r
 806                         printk(KERN_ALERT "Cannot allocate ts INT!ERRNO:%d\n", ret);\r
 807                         gpio_free(ts->irq_pin);\r
 808                         goto err_input_register_device_failed;\r
 809                 }\r
 810         }\r
 811 \r
 812         info_buf= kzalloc(ts->max_touch_num*sizeof(struct rk_touch_info), GFP_KERNEL);\r
 813         if(!info_buf)\r
 814         {\r
 815                 printk(KERN_ALERT "alloc for rk_touch_info fail\n");\r
 816                 goto err_input_register_device_failed;\r
 817         }\r
 818         printk("Goodix TS probe successfully!\n");\r
 819         return 0;\r
 820 \r
 821         \r
 822 err_input_register_device_failed:\r
 823         input_free_device(ts->input_dev);\r
 824         i2c_set_clientdata(client, NULL);       \r
 825         kfree(ts);\r
 826 exit:\r
 827         return ret;\r
 828 }\r
 829 \r
 830 \r
 831 /*******************************************************\r
 832 Description:\r
 833         Goodix touchscreen driver release function.\r
 834 \r
 835 Parameter:\r
 836         client: i2c device struct.\r
 837         \r
 838 return:\r
 839         Executive outcomes. 0---succeed.\r
 840 *******************************************************/\r
 841 static int rk_ts_remove(struct i2c_client *client)\r
 842 {\r
 843         struct rk_ts_data *ts = i2c_get_clientdata(client);\r
 844 #ifdef CONFIG_HAS_EARLYSUSPEND\r
 845         unregister_early_suspend(&ts->early_suspend);\r
 846 #endif\r
 847 #ifdef CONFIG_TOUCHSCREEN_GOODIX_IAP\r
 848         remove_proc_entry("goodix-update", NULL);\r
 849 #endif\r
 850         \r
 851         gpio_free(ts->irq_pin);\r
 852         free_irq(ts->irq, ts);\r
 853         dev_notice(&client->dev,"The driver is removing...\n");\r
 854         i2c_set_clientdata(client, NULL);\r
 855         input_unregister_device(ts->input_dev);\r
 856         kfree(ts);\r
 857         return 0;\r
 858 }\r
 859 \r
 860 \r
 861 \r
 862 //******************************Begin of firmware update surpport*******************************\r
 863 #ifdef CONFIG_TOUCHSCREEN_GOODIX_IAP\r
 864 /**\r
 865 @brief CRC cal proc,include : Reflect,init_crc32_table,GenerateCRC32\r
 866 @param global var oldcrc32\r
 867 @return states\r
 868 */\r
 869 static unsigned int Reflect(unsigned long int ref, char ch)\r
 870 {\r
 871         unsigned int value=0;\r
 872         int i;\r
 873         for(i = 1; i < (ch + 1); i++)\r
 874         {\r
 875                 if(ref & 1)\r
 876                         value |= 1 << (ch - i);\r
 877                 ref >>= 1;\r
 878         }\r
 879         return value;\r
 880 }\r
 881 /*---------------------------------------------------------------------------------------------------------*/\r
 882 /*  CRC Check Program INIT                                                                                                                         */\r
 883 /*---------------------------------------------------------------------------------------------------------*/\r
 884 static void init_crc32_table(void)\r
 885 {\r
 886         unsigned int temp;\r
 887         unsigned int t1,t2;\r
 888         unsigned int flag;\r
 889         int i,j;\r
 890         for(i = 0; i <= 0xFF; i++)\r
 891         {\r
 892                 temp=Reflect(i, 8);\r
 893                 crc32_table[i]= temp<< 24;\r
 894                 for (j = 0; j < 8; j++)\r
 895                 {\r
 896 \r
 897                         flag=crc32_table[i]&0x80000000;\r
 898                         t1=(crc32_table[i] << 1);\r
 899                         if(flag==0)\r
 900                                 t2=0;\r
 901                         else\r
 902                                 t2=ulPolynomial;\r
 903                         crc32_table[i] =t1^t2 ;\r
 904 \r
 905                 }\r
 906                 crc32_table[i] = Reflect(crc32_table[i], 32);\r
 907         }\r
 908 }\r
 909 /*---------------------------------------------------------------------------------------------------------*/\r
 910 /*  CRC main Program                                                                                                                               */\r
 911 /*---------------------------------------------------------------------------------------------------------*/\r
 912 static void GenerateCRC32(unsigned char * buf, unsigned int len)\r
 913 {\r
 914         unsigned int i;\r
 915         unsigned int t;\r
 916 \r
 917         for (i = 0; i != len; ++i)\r
 918         {\r
 919                 t = (oldcrc32 ^ buf[i]) & 0xFF;\r
 920                 oldcrc32 = ((oldcrc32 >> 8) & 0xFFFFFF) ^ crc32_table[t];\r
 921         }\r
 922 }\r
 923 \r
 924 static struct file * update_file_open(char * path, mm_segment_t * old_fs_p)\r
 925 {\r
 926         struct file * filp = NULL;\r
 927         int errno = -1;\r
 928                 \r
 929         filp = filp_open(path, O_RDONLY, 0644);\r
 930         \r
 931         if(!filp || IS_ERR(filp))\r
 932         {\r
 933                 if(!filp)\r
 934                         errno = -ENOENT;\r
 935                 else \r
 936                         errno = PTR_ERR(filp);                                  \r
 937                 printk(KERN_ERR "The update file for Guitar open error.\n");\r
 938                 return NULL;\r
 939         }\r
 940         *old_fs_p = get_fs();\r
 941         set_fs(get_ds());\r
 942 \r
 943         filp->f_op->llseek(filp,0,0);\r
 944         return filp ;\r
 945 }\r
 946 \r
 947 static void update_file_close(struct file * filp, mm_segment_t old_fs)\r
 948 {\r
 949         set_fs(old_fs);\r
 950         if(filp)\r
 951                 filp_close(filp, NULL);\r
 952 }\r
 953 static int update_get_flen(char * path)\r
 954 {\r
 955         struct file * file_ck = NULL;\r
 956         mm_segment_t old_fs;\r
 957         int length ;\r
 958         \r
 959         file_ck = update_file_open(path, &old_fs);\r
 960         if(file_ck == NULL)\r
 961                 return 0;\r
 962 \r
 963         length = file_ck->f_op->llseek(file_ck, 0, SEEK_END);\r
 964         //printk("File length: %d\n", length);\r
 965         if(length < 0)\r
 966                 length = 0;\r
 967         update_file_close(file_ck, old_fs);\r
 968         return length;  \r
 969 }\r
 970 static int update_file_check(char * path)\r
 971 {\r
 972         unsigned char buffer[64] = { 0 } ;\r
 973         struct file * file_ck = NULL;\r
 974         mm_segment_t old_fs;\r
 975         int count, ret, length ;\r
 976         \r
 977         file_ck = update_file_open(path, &old_fs);\r
 978         \r
 979         if(path != NULL)\r
 980                 printk("File Path:%s\n", path);\r
 981         \r
 982         if(file_ck == NULL)\r
 983                 return -ERROR_NO_FILE;\r
 984 \r
 985         length = file_ck->f_op->llseek(file_ck, 0, SEEK_END);\r
 986 #ifdef GUITAR_MESSAGE\r
 987         printk(KERN_INFO "gt801 update: File length: %d\n",length);\r
 988 #endif  \r
 989         if(length <= 0 || (length%4) != 0)\r
 990         {\r
 991                 update_file_close(file_ck, old_fs);\r
 992                 return -ERROR_FILE_TYPE;\r
 993         }\r
 994         \r
 995         //set file point to the begining of the file\r
 996         file_ck->f_op->llseek(file_ck, 0, SEEK_SET);    \r
 997         oldcrc32 = 0xFFFFFFFF;\r
 998         init_crc32_table();\r
 999         while(length > 0)\r
1000         {\r
1001                 ret = file_ck->f_op->read(file_ck, buffer, sizeof(buffer), &file_ck->f_pos);\r
1002                 if(ret > 0)\r
1003                 {\r
1004                         for(count = 0; count < ret;  count++)   \r
1005                                 GenerateCRC32(&buffer[count],1);                        \r
1006                 }\r
1007                 else \r
1008                 {\r
1009                         update_file_close(file_ck, old_fs);\r
1010                         return -ERROR_FILE_READ;\r
1011                 }\r
1012                 length -= ret;\r
1013         }\r
1014         oldcrc32 = ~oldcrc32;\r
1015 #ifdef GUITAR_MESSAGE   \r
1016         printk("CRC_Check: %u\n", oldcrc32);\r
1017 #endif  \r
1018         update_file_close(file_ck, old_fs);\r
1019         return 1;       \r
1020 }\r
1021 \r
1022 unsigned char wait_slave_ready(struct rk_ts_data *ts, unsigned short *timeout)\r
1023 {\r
1024         unsigned char i2c_state_buf[2] = {ADDR_STA, UNKNOWN_ERROR};\r
1025         int ret;\r
1026         while(*timeout < MAX_TIMEOUT)\r
1027         {\r
1028                 ret = goodix_i2c_read_bytes(ts->client, i2c_state_buf, 2);\r
1029                 if(ret <= 0)\r
1030                         return ERROR_I2C_TRANSFER;\r
1031                 if(i2c_state_buf[1] & SLAVE_READY)\r
1032                 {\r
1033                         return i2c_state_buf[1];\r
1034                         //return 1;\r
1035                 }\r
1036                 msleep(10);\r
1037                 *timeout += 5;\r
1038         }\r
1039         return 0;\r
1040 }\r
1041 \r
1042 static int goodix_update_write(struct file *filp, const char __user *buff, unsigned long len, void *data)\r
1043 {\r
1044         unsigned char cmd[220];\r
1045         int ret = -1;\r
1046 \r
1047         static unsigned char update_path[100];\r
1048         static unsigned short time_count = 0;\r
1049         static unsigned int file_len = 0;\r
1050         \r
1051         unsigned char i2c_control_buf[2] = {ADDR_CMD, 0};\r
1052         unsigned char i2c_states_buf[2] = {ADDR_STA, 0};\r
1053         unsigned char i2c_data_buf[PACK_SIZE+1+8] = {ADDR_DAT,};\r
1054         //unsigned char i2c_rd_buf[1+4+PACK_SIZE+4];\r
1055         unsigned char i2c_rd_buf[160];\r
1056         unsigned char retries = 0;\r
1057         unsigned int rd_len;\r
1058         unsigned char i = 0;\r
1059         static unsigned char update_need_config = 0;\r
1060 \r
1061         unsigned char checksum_error_times = 0;\r
1062 #ifdef UPDATE_NEW_PROTOCOL\r
1063         unsigned int frame_checksum = 0;\r
1064         unsigned int frame_number = 0;\r
1065 #else\r
1066         unsigned char send_crc = 0;\r
1067 #endif\r
1068 \r
1069         struct file * file_data = NULL;\r
1070         mm_segment_t old_fs;\r
1071         struct rk_ts_data *ts;\r
1072         \r
1073         ts = i2c_get_clientdata(i2c_connect_client);\r
1074         if(ts==NULL)\r
1075                 return 0;\r
1076         \r
1077         if(copy_from_user(&cmd, buff, len))\r
1078         {\r
1079                 return -EFAULT;\r
1080         }\r
1081         switch(cmd[0])\r
1082         {\r
1083                 case STEP_SET_PATH:\r
1084                         printk(KERN_INFO"Write cmd is:%d,cmd arg is:%s,write len is:%ld\n",cmd[0], &cmd[1], len);\r
1085                         memset(update_path, 0, 100);\r
1086                         strncpy(update_path, cmd+1, 100);\r
1087                         if(update_path[0] == 0)\r
1088                                 return 0;\r
1089                         else\r
1090                                 return 1;\r
1091                 case STEP_CHECK_FILE:\r
1092                         printk(KERN_INFO"Begin to firmware update ......\n");\r
1093                         ret = update_file_check(update_path);\r
1094                         if(ret <= 0)\r
1095                         {\r
1096                                 printk(KERN_INFO"fialed to check update file!\n");\r
1097                                 return ret;\r
1098                         }\r
1099                         msleep(500);\r
1100                         printk(KERN_INFO"Update check file success!\n");\r
1101                         return 1;\r
1102                 case STEP_WRITE_SYN:\r
1103                         printk(KERN_INFO"STEP1:Write synchronization signal!\n");\r
1104                         i2c_control_buf[1] = UPDATE_START;\r
1105                         ret = goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);\r
1106                         if(ret <= 0)\r
1107                         {\r
1108                                 ret = ERROR_I2C_TRANSFER;\r
1109                                 return ret;\r
1110                         }\r
1111                         //the time include time(APROM -> LDROM) and time(LDROM init)\r
1112                         msleep(1000);\r
1113                         return 1;\r
1114                 case STEP_WAIT_SYN:\r
1115                         printk(KERN_INFO"STEP2:Wait synchronization signal!\n");\r
1116                         while(retries < MAX_I2C_RETRIES)\r
1117                         {\r
1118                                 i2c_states_buf[1] = UNKNOWN_ERROR;\r
1119                                 ret = goodix_i2c_read_bytes(ts->client, i2c_states_buf, 2);\r
1120                                 printk(KERN_INFO"The read byte is:%d\n", i2c_states_buf[1]);\r
1121                                 if(i2c_states_buf[1] & UPDATE_START)\r
1122                                 {\r
1123                                         if(i2c_states_buf[1] & NEW_UPDATE_START)\r
1124                                         {\r
1125                                         #ifdef UPDATE_NEW_PROTOCOL\r
1126                                                 update_need_config = 1;\r
1127                                                 return 2;\r
1128                                         #else\r
1129                                                 return 1;\r
1130                                         #endif\r
1131                                         }\r
1132                                         break;\r
1133                                 }\r
1134                                 msleep(5);\r
1135                                 retries++;\r
1136                                 time_count += 10;\r
1137                         }\r
1138                         if((retries >= MAX_I2C_RETRIES) && (!(i2c_states_buf[1] & UPDATE_START)))\r
1139                         {\r
1140                                 if(ret <= 0)\r
1141                                         return 0;\r
1142                                 else\r
1143                                         return -1;\r
1144                         }\r
1145                         return 1;\r
1146                 case STEP_WRITE_LENGTH:\r
1147                         printk(KERN_INFO"STEP3:Write total update file length!\n");\r
1148                         file_len = update_get_flen(update_path);\r
1149                         if(file_len <= 0)\r
1150                         {\r
1151                                 printk(KERN_INFO"get update file length failed!\n");\r
1152                                 return -1;\r
1153                         }\r
1154                         file_len += 4;\r
1155                         i2c_data_buf[1] = (file_len>>24) & 0xff;\r
1156                         i2c_data_buf[2] = (file_len>>16) & 0xff;\r
1157                         i2c_data_buf[3] = (file_len>>8) & 0xff;\r
1158                         i2c_data_buf[4] = file_len & 0xff;\r
1159                         file_len -= 4;\r
1160                         ret = goodix_i2c_write_bytes(ts->client, i2c_data_buf, 5);\r
1161                         if(ret <= 0)\r
1162                         {\r
1163                                 ret = ERROR_I2C_TRANSFER;\r
1164                                 return 0;\r
1165                         }\r
1166                         return 1;\r
1167                 case STEP_WAIT_READY:\r
1168                         printk(KERN_INFO"STEP4:Wait slave ready!\n");\r
1169                         ret = wait_slave_ready(ts, &time_count);\r
1170                         if(ret == ERROR_I2C_TRANSFER)\r
1171                                 return 0;\r
1172                         if(!ret)\r
1173                         {\r
1174                                 return -1;\r
1175                         }\r
1176                         printk(KERN_INFO"Slave ready!\n");\r
1177                         return 1;\r
1178                 case STEP_WRITE_DATA:\r
1179 #ifdef UPDATE_NEW_PROTOCOL\r
1180                         printk(KERN_INFO"STEP5:Begin to send file data use NEW protocol!\n");\r
1181                         file_data = update_file_open(update_path, &old_fs);\r
1182                         if(file_data == NULL)\r
1183                         {\r
1184                                 return -1;\r
1185                         }\r
1186                         frame_number = 0;\r
1187                         while(file_len >= 0)\r
1188                         {\r
1189                                 i2c_data_buf[0] = ADDR_DAT;\r
1190                                 rd_len = (file_len >= PACK_SIZE) ? PACK_SIZE : file_len;\r
1191                                 frame_checksum = 0;\r
1192                                 if(file_len)\r
1193                                 {\r
1194                                         ret = file_data->f_op->read(file_data, i2c_data_buf+1+4, rd_len, &file_data->f_pos);\r
1195                                         if(ret <= 0)\r
1196                                         {\r
1197                                                 printk("[GOODiX_ISP_NEW]:Read File Data Failed!\n");\r
1198                                                 return -1;\r
1199                                         }\r
1200                                         i2c_data_buf[1] = (frame_number>>24)&0xff;\r
1201                                         i2c_data_buf[2] = (frame_number>>16)&0xff;\r
1202                                         i2c_data_buf[3] = (frame_number>>8)&0xff;\r
1203                                         i2c_data_buf[4] = frame_number&0xff;\r
1204                                         frame_number++;\r
1205                                         frame_checksum = 0;\r
1206                                         for(i=0; i<rd_len; i++)\r
1207                                         {\r
1208                                                 frame_checksum += i2c_data_buf[5+i];\r
1209                                         }\r
1210                                         frame_checksum = 0 - frame_checksum;\r
1211                                         i2c_data_buf[5+rd_len+0] = frame_checksum&0xff;\r
1212                                         i2c_data_buf[5+rd_len+1] = (frame_checksum>>8)&0xff;\r
1213                                         i2c_data_buf[5+rd_len+2] = (frame_checksum>>16)&0xff;\r
1214                                         i2c_data_buf[5+rd_len+3] = (frame_checksum>>24)&0xff;\r
1215                                 }\r
1216 rewrite:\r
1217                                 printk(KERN_INFO"[GOODiX_ISP_NEW]:%d\n", file_len);                             \r
1218                                 ret = goodix_i2c_write_bytes(ts->client, i2c_data_buf, 1+4+rd_len+4);\r
1219                                         //if(ret <= 0)\r
1220                                 if(ret != 1)\r
1221                                 {\r
1222                                         printk("[GOODiX_ISP_NEW]:Write File Data Failed!Return:%d\n", ret);\r
1223                                         return 0;\r
1224                                 }\r
1225 \r
1226                                 memset(i2c_rd_buf, 0x00, 1+4+rd_len+4);\r
1227                                 ret = goodix_i2c_read_bytes(ts->client, i2c_rd_buf, 1+4+rd_len+4);\r
1228                                 if(ret != 2)\r
1229                                 {\r
1230                                         printk("[GOODiX_ISP_NEW]:Read File Data Failed!Return:%d\n", ret);\r
1231                                         return 0;\r
1232                                 }\r
1233                                 for(i=1; i<(1+4+rd_len+4); i++)                                         //check communication\r
1234                                 {\r
1235                                         if(i2c_rd_buf[i] != i2c_data_buf[i])\r
1236                                         {\r
1237                                                 i = 0;\r
1238                                                 break;\r
1239                                         }\r
1240                                 }\r
1241                                 if(!i)\r
1242                                 {\r
1243                                         i2c_control_buf[0] = ADDR_CMD;\r
1244                                         i2c_control_buf[1] = 0x03;\r
1245                                         goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);         //communication error\r
1246                                         printk("[GOODiX_ISP_NEW]:File Data Frame readback check Error!\n");\r
1247                                 }\r
1248                                 else\r
1249                                 {\r
1250                                         i2c_control_buf[1] = 0x04;                                                                                                      //let LDROM write flash\r
1251                                         goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);\r
1252                                 }\r
1253                                 \r
1254                                 //Wait for slave ready signal.and read the checksum\r
1255                                 ret = wait_slave_ready(ts, &time_count);\r
1256                                 if((ret & CHECKSUM_ERROR)||(!i))\r
1257                                 {\r
1258                                         if(i)\r
1259                                         {\r
1260                                                 printk("[GOODiX_ISP_NEW]:File Data Frame checksum Error!\n");\r
1261                                         }\r
1262                                         checksum_error_times++;\r
1263                                         msleep(20);\r
1264                                         if(checksum_error_times > 20)                           //max retry times.\r
1265                                                 return 0;\r
1266                                         goto rewrite;\r
1267                                 }\r
1268                                 checksum_error_times = 0;\r
1269                                 if(ret & (FRAME_ERROR))\r
1270                                 {\r
1271                                         printk("[GOODiX_ISP_NEW]:File Data Frame Miss!\n");\r
1272                                         return 0;\r
1273                                 }\r
1274                                 if(ret == ERROR_I2C_TRANSFER)\r
1275                                         return 0;\r
1276                                 if(!ret)\r
1277                                 {\r
1278                                         return -1;\r
1279                                 }\r
1280                                 if(file_len < PACK_SIZE)\r
1281                                 {\r
1282                                         update_file_close(file_data, old_fs);\r
1283                                         break;\r
1284                                 }\r
1285                                 file_len -= rd_len;\r
1286                         }//end of while((file_len >= 0))\r
1287                         return 1;\r
1288 #else\r
1289                         printk(KERN_INFO"STEP5:Begin to send file data use OLD protocol!\n");\r
1290                         file_data = update_file_open(update_path, &old_fs);\r
1291                         if(file_data == NULL)   //file_data has been opened at the last time\r
1292                         {\r
1293                                 return -1;\r
1294                         }\r
1295                         while((file_len >= 0) && (!send_crc))\r
1296                         {\r
1297                                 printk(KERN_INFO"[GOODiX_ISP_OLD]:%d\n", file_len);\r
1298                                 i2c_data_buf[0] = ADDR_DAT;\r
1299                                 rd_len = (file_len >= PACK_SIZE) ? PACK_SIZE : file_len;\r
1300                                 if(file_len)\r
1301                                 {\r
1302                                         ret = file_data->f_op->read(file_data, i2c_data_buf+1, rd_len, &file_data->f_pos);\r
1303                                         if(ret <= 0)\r
1304                                         {\r
1305                                                 return -1;\r
1306                                         }\r
1307                                 }\r
1308                                 if(file_len < PACK_SIZE)\r
1309                                 {\r
1310                                         send_crc = 1;\r
1311                                         update_file_close(file_data, old_fs);\r
1312                                         i2c_data_buf[file_len+1] = oldcrc32&0xff;\r
1313                                         i2c_data_buf[file_len+2] = (oldcrc32>>8)&0xff;\r
1314                                         i2c_data_buf[file_len+3] = (oldcrc32>>16)&0xff;\r
1315                                         i2c_data_buf[file_len+4] = (oldcrc32>>24)&0xff;\r
1316                                         ret = goodix_i2c_write_bytes(ts->client, i2c_data_buf, (file_len+1+4));\r
1317                                         //if(ret <= 0)\r
1318                                         if(ret != 1)\r
1319                                         {\r
1320                                                 printk("[GOODiX_ISP_OLD]:Write File Data Failed!Return:%d\n", ret);\r
1321                                                 return 0;\r
1322                                         }\r
1323                                         break;\r
1324                                 }\r
1325                                 else\r
1326                                 {\r
1327                                         ret = goodix_i2c_write_bytes(ts->client, i2c_data_buf, PACK_SIZE+1);\r
1328                                         //if(ret <= 0)\r
1329                                         if(ret != 1)\r
1330                                         {\r
1331                                                 printk("[GOODiX_ISP_OLD]:Write File Data Failed!Return:%d\n", ret);\r
1332                                                 return 0;\r
1333                                         }\r
1334                                 }\r
1335                                 file_len -= rd_len;\r
1336                         \r
1337                                 //Wait for slave ready signal.\r
1338                                 ret = wait_slave_ready(ts, &time_count);\r
1339                                 if(ret == ERROR_I2C_TRANSFER)\r
1340                                         return 0;\r
1341                                 if(!ret)\r
1342                                 {\r
1343                                         return -1;\r
1344                                 }\r
1345                                 //Slave is ready.\r
1346                         }//end of while((file_len >= 0) && (!send_crc))\r
1347                         return 1;\r
1348 #endif\r
1349                 case STEP_READ_STATUS:\r
1350                         printk(KERN_INFO"STEP6:Read update status!\n");\r
1351                         while(time_count < MAX_TIMEOUT)\r
1352                         {\r
1353                                 ret = goodix_i2c_read_bytes(ts->client, i2c_states_buf, 2);\r
1354                                 if(ret <= 0)\r
1355                                 {\r
1356                                         return 0;\r
1357                                 }\r
1358                                 if(i2c_states_buf[1] & SLAVE_READY)\r
1359                                 {\r
1360                                         if(!(i2c_states_buf[1] &0xf0))\r
1361                                         {\r
1362                                                 printk(KERN_INFO"The firmware updating succeed!update state:0x%x\n",i2c_states_buf[1]);\r
1363                                                 return 1;\r
1364                                         }\r
1365                                         else\r
1366                                         {\r
1367                                                 printk(KERN_INFO"The firmware updating failed!update state:0x%x\n",i2c_states_buf[1]);\r
1368                                                 return 0;\r
1369 \r
1370                                         }\r
1371                                 }\r
1372                                 msleep(1);\r
1373                                 time_count += 5;\r
1374                         }\r
1375                         return -1;\r
1376                 case FUN_CLR_VAL:                                                               //clear the static val\r
1377                         time_count = 0;\r
1378                         file_len = 0;\r
1379                         update_need_config = 0;\r
1380                         return 1;\r
1381                 case FUN_CMD:                                                   //functional command\r
1382                         if(cmd[1] == CMD_DISABLE_TP)\r
1383                         {\r
1384                                 printk(KERN_INFO"Disable TS int!\n");\r
1385                                 g_enter_isp = 1;\r
1386                                 disable_irq(ts->irq);\r
1387                         }\r
1388                         else if(cmd[1] == CMD_ENABLE_TP)\r
1389                         {\r
1390                                 printk(KERN_INFO"Enable TS int!\n");\r
1391                                 g_enter_isp = 0;\r
1392                                 enable_irq(ts->irq);\r
1393                         }\r
1394                         else if(cmd[1] == CMD_READ_VER)\r
1395                         {\r
1396                                 printk(KERN_INFO"Read version!\n");\r
1397                                 ts->read_mode = MODE_RD_VER;\r
1398                         }\r
1399                         else if(cmd[1] == CMD_READ_RAW)\r
1400                         {\r
1401                                 printk(KERN_INFO"Read raw data!\n");\r
1402                                 ts->read_mode = MODE_RD_RAW;\r
1403                                 i2c_control_buf[1] = 201;\r
1404                                 ret = goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);                   //read raw data cmd\r
1405                                 if(ret <= 0)\r
1406                                 {\r
1407                                         printk(KERN_INFO"Write read raw data cmd failed!\n");\r
1408                                         return 0;\r
1409                                 }\r
1410                                 msleep(200);\r
1411                         }\r
1412                         else if(cmd[1] == CMD_READ_DIF)\r
1413                         {\r
1414                                 printk(KERN_INFO"Read diff data!\n");\r
1415                                 ts->read_mode = MODE_RD_DIF;\r
1416                                 i2c_control_buf[1] = 202;\r
1417                                 ret = goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);                   //read diff data cmd\r
1418                                 if(ret <= 0)\r
1419                                 {\r
1420                                         printk(KERN_INFO"Write read raw data cmd failed!\n");\r
1421                                         return 0;\r
1422                                 }\r
1423                                 msleep(200);\r
1424                         }\r
1425                         else if(cmd[1] == CMD_READ_CFG)\r
1426                         {\r
1427                                 printk(KERN_INFO"Read config info!\n");\r
1428                                 ts->read_mode = MODE_RD_CFG;\r
1429                                 rd_cfg_addr = cmd[2];\r
1430                                 rd_cfg_len = cmd[3];\r
1431                         }\r
1432                         else if(cmd[1] == CMD_SYS_REBOOT)\r
1433                         {\r
1434                                 printk(KERN_INFO"System reboot!\n");\r
1435                                 sys_sync();\r
1436                                 msleep(200);\r
1437                                 kernel_restart(NULL);\r
1438                         }\r
1439                         return 1;\r
1440                 case FUN_WRITE_CONFIG:\r
1441                         \r
1442                         printk(KERN_INFO"Begin write config info!Config length:%d\n",cmd[1]);\r
1443                         for(i=3; i<cmd[1];i++)\r
1444                         {\r
1445                                 //if((i-3)%5 == 0)printk("\n");\r
1446                                 printk("(%d):0x%x ", i-3, cmd[i]);\r
1447                         }\r
1448                         printk("\n");\r
1449 \r
1450                         if((cmd[2]>83)&&(cmd[2]<240)&&cmd[1])\r
1451                         {\r
1452                                 checksum_error_times = 0;\r
1453 reconfig:\r
1454                                 ret = goodix_i2c_write_bytes(ts->client, cmd+2, cmd[1]); \r
1455                                 if(ret != 1)\r
1456                                 {\r
1457                                         printk("Write Config failed!return:%d\n",ret);\r
1458                                         return -1;\r
1459                                 }\r
1460                                 if(!update_need_config)return 1;\r
1461                                 \r
1462                                 i2c_rd_buf[0] = cmd[2];\r
1463                                 ret = goodix_i2c_read_bytes(ts->client, i2c_rd_buf, cmd[1]);\r
1464                                 if(ret != 2)\r
1465                                 {\r
1466                                         printk("Read Config failed!return:%d\n",ret);\r
1467                                         return -1;\r
1468                                 }\r
1469                                 for(i=0; i<cmd[1]; i++)\r
1470                                 {\r
1471                                         if(i2c_rd_buf[i] != cmd[i+2])\r
1472                                         {\r
1473                                                 printk("Config readback check failed!\n");\r
1474                                                 i = 0;\r
1475                                                 break;\r
1476                                         }\r
1477                                 }\r
1478                                 if(!i)\r
1479                                 {\r
1480                                         i2c_control_buf[0] = ADDR_CMD;\r
1481                                         i2c_control_buf[1] = 0x03;\r
1482                                         goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);         //communication error\r
1483                                         checksum_error_times++;\r
1484                                         msleep(20);\r
1485                                         if(checksum_error_times > 20)                           //max retry times.\r
1486                                                 return 0;\r
1487                                         goto reconfig;\r
1488                                 }\r
1489                                 else\r
1490                                 {\r
1491                                         i2c_control_buf[0] = ADDR_CMD;\r
1492                                         i2c_control_buf[1] = 0x04;                                      //let LDROM write flash\r
1493                                         goodix_i2c_write_bytes(ts->client, i2c_control_buf, 2);\r
1494                                         return 1;\r
1495                                 }\r
1496                                 \r
1497                         }\r
1498                         else\r
1499                         {\r
1500                                 printk(KERN_INFO"Invalid config addr!\n");\r
1501                                 return -1;\r
1502                         }\r
1503                 default:\r
1504                         return -ENOSYS;\r
1505         }\r
1506         return 0;\r
1507 }\r
1508 \r
1509 static int goodix_update_read( char *page, char **start, off_t off, int count, int *eof, void *data )\r
1510 {\r
1511         int ret = -1;\r
1512         struct rk_ts_data *ts;\r
1513         int len = 0;\r
1514         char *version_info = NULL;\r
1515         static unsigned char read_data[1201] = {80, };\r
1516 \r
1517         ts = i2c_get_clientdata(i2c_connect_client);\r
1518         if(ts==NULL)\r
1519                 return 0;\r
1520 \r
1521         if(ts->read_mode == MODE_RD_VER)                //read version data\r
1522         {\r
1523                 ret = goodix_read_version(ts, &version_info);\r
1524                 if(ret <= 0)\r
1525                 {\r
1526                         printk(KERN_INFO"Read version data failed!\n");\r
1527                         vfree(version_info);\r
1528                         return 0;\r
1529                 }\r
1530 \r
1531                 for(len=0;len<100;len++)\r
1532                 {\r
1533                         if(*(version_info + len) == '\0')\r
1534                                 break;\r
1535                 }\r
1536                 printk(KERN_INFO"GOODiX Touchscreen Version is:%s\n", (version_info+1));\r
1537                 strncpy(page, version_info+1, len + 1);\r
1538                 vfree(version_info);\r
1539                 *eof = 1;\r
1540                 return len+1;\r
1541         }\r
1542         else if((ts->read_mode == MODE_RD_RAW)||(ts->read_mode == MODE_RD_DIF))         //read raw data or diff\r
1543         {\r
1544                 //printk(KERN_INFO"Read raw data\n");\r
1545                 ret = goodix_i2c_read_bytes(ts->client, read_data, 1201);\r
1546                 if(ret <= 0)\r
1547                 {\r
1548                         if(ts->read_mode == 2)\r
1549                                 printk(KERN_INFO"Read raw data failed!\n");\r
1550                         if(ts->read_mode == 3)\r
1551                                 printk(KERN_INFO"Read diff data failed!\n");\r
1552                         return 0;\r
1553                 }\r
1554                 memcpy(page, read_data+1, 1200);\r
1555                 *eof = 1;\r
1556                 *start = NULL;\r
1557                 return 1200;\r
1558         }\r
1559         else if(ts->read_mode == MODE_RD_CFG)\r
1560         {\r
1561                 if((rd_cfg_addr>83)&&(rd_cfg_addr<240))\r
1562                 {\r
1563                         read_data[0] = rd_cfg_addr;\r
1564                         printk("read config addr is:%d\n", rd_cfg_addr);\r
1565                 }\r
1566                 else\r
1567                 {\r
1568                         read_data[0] = 101;\r
1569                         printk("invalid read config addr,use default!\n");\r
1570                 }\r
1571                 if((rd_cfg_len<0)||(rd_cfg_len>156))\r
1572                 {\r
1573                         printk("invalid read config length,use default!\n");\r
1574                         rd_cfg_len = 239 - read_data[0];\r
1575                 }\r
1576                 printk("read config length is:%d\n", rd_cfg_len);\r
1577                 ret = goodix_i2c_read_bytes(ts->client, read_data, rd_cfg_len);\r
1578                 if(ret <= 0)\r
1579                 {\r
1580                         printk(KERN_INFO"Read config info failed!\n");\r
1581                         return 0;\r
1582                 }\r
1583                 memcpy(page, read_data+1, rd_cfg_len);\r
1584                 return rd_cfg_len;\r
1585         }\r
1586         return len;\r
1587 }\r
1588               \r
1589 #endif\r
1590 //******************************End of firmware update surpport*******************************\r
1591 static const struct i2c_device_id goodix_ts_id[] = {\r
1592         { "Goodix-TS", 0 },\r
1593         { }\r
1594 };\r
1595 \r
1596 static struct i2c_driver rk_ts_driver = {\r
1597         .probe          = rk_ts_probe,\r
1598         .remove         = rk_ts_remove,\r
1599 #ifndef CONFIG_HAS_EARLYSUSPEND\r
1600         .suspend        = rk_ts_suspend,\r
1601         .resume         = rk_ts_resume,\r
1602 #endif\r
1603         .id_table       = goodix_ts_id,\r
1604         .driver = {\r
1605                 .name   = "Goodix-TS",\r
1606                 .owner = THIS_MODULE,\r
1607         },\r
1608 };\r
1609 \r
1610 \r
1611 static struct class *ts_debug_class = NULL;\r
1612 static ssize_t dbg_mode_show(struct class *cls,struct class_attribute *attr, char *_buf)\r
1613 {\r
1614        printk("%s>>>>>>>>\n",__func__);\r
1615        return 0;\r
1616 }\r
1617 \r
1618 static ssize_t dbg_mode_store(struct class *cls,struct class_attribute *attr, const char *buf, size_t _count)\r
1619 {\r
1620         dbg_thresd = simple_strtol(buf,NULL,10);\r
1621         if(dbg_thresd)\r
1622         {\r
1623                 printk(KERN_INFO "ts debug open\n");\r
1624         }\r
1625         else\r
1626         {\r
1627                 printk(KERN_INFO "ts debug close");\r
1628         }\r
1629       \r
1630     return _count;\r
1631 }\r
1632 static CLASS_ATTR(debug, 0666, dbg_mode_show, dbg_mode_store);\r
1633 \r
1634 static int dbg_sys_init(void)\r
1635 {\r
1636         int ret ;\r
1637         ts_debug_class = class_create(THIS_MODULE, "ts_debug");\r
1638         ret =  class_create_file(ts_debug_class, &class_attr_debug);\r
1639     if (ret)\r
1640     {\r
1641        printk("Fail to creat class hkrkfb.\n");\r
1642     }\r
1643    return 0;\r
1644 }\r
1645 \r
1646 \r
1647 /*******************************************************        \r
1648 Description:\r
1649         Driver Install function.\r
1650 return:\r
1651         Executive Outcomes. 0---succeed.\r
1652 ********************************************************/\r
1653 static int __devinit rk_ts_init(void)\r
1654 {\r
1655         int ret ;\r
1656         ret=i2c_add_driver(&rk_ts_driver);\r
1657         dbg_sys_init();  //for debug\r
1658         return ret; \r
1659 }\r
1660 \r
1661 /*******************************************************        \r
1662 Description:\r
1663         Driver uninstall function.\r
1664 return:\r
1665         Executive Outcomes. 0---succeed.\r
1666 ********************************************************/\r
1667 static void __exit rk_ts_exit(void)\r
1668 {\r
1669         printk(KERN_ALERT "Touchscreen driver of guitar exited.\n");\r
1670         i2c_del_driver(&rk_ts_driver);\r
1671 }\r
1672 \r
1673 module_init(rk_ts_init);\r
1674 module_exit(rk_ts_exit);\r
1675 \r
1676 MODULE_DESCRIPTION("Goodix Touchscreen Driver");\r
1677 MODULE_LICENSE("GPL");\r