1 /*
2 * drivers/input/touchscreen/gslX680.c
3 *
4 * Copyright (c) 2012 Shanghai Basewin
5 * Guan Yuwei<guanyuwei@basewin.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12 #include <linux/module.h>
13 #include <linux/delay.h>
14 #include <linux/device.h>
15 #include <linux/hrtimer.h>
16 #include <linux/i2c.h>
17 #include <linux/input.h>
18 #include <linux/interrupt.h>
19 #include <linux/io.h>
20 #include <linux/platform_device.h>
21 #include <linux/async.h>
22 #include <linux/irq.h>
23 #include <linux/workqueue.h>
24 #include <linux/proc_fs.h>
25 #include <linux/input/mt.h>
26 #include <linux/version.h>
27 #include <linux/slab.h>
28 #include <linux/of_device.h>
29 #include <linux/of_gpio.h>
30
31 #include "tp_suspend.h"
32 #include "tp_gslx680_board.h"
33
34 #ifdef OLD_VERSION
35 #if defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_LEHENG_NEW)
36 #include "rockchip_gsl1680_7inch_800x480_LeHeng.h"
37 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_SHENGHEXIANG_NEW)
38 #include "rockchip_gsl1680_7inch_800x480_ShengHeXiang.h"
39 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_SHENGHEXIANG_QLT_NEW)
40 #include "rockchip_gsl1680_7inch_800x480_ShengHeXiang_QLT.h"
41 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_SHENGHEXIANG_NEW)
42 #include "rockchip_gsl1680_7inch_1024x600_ShengHeXiang.h"
43 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_YOUCHU_NEW)
44 #include "rockchip_gsl1680_7inch_800x480_YouChu_dc.h"
45 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_GANGXINDA_NEW)
46 #include "rockchip_gsl1680_7inch_800x480_YouChu_NEW_GangXinDa.h"
47 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_GANGXINDA_NEW)
48 #include "rockchip_gsl1680_7inch_1024x600_YouChu_NEW_GangXinDa.h"
49 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_DEYI_NEW)
50 #include "rockchip_gsl1680_7inch_800x480_DeYi.h"
51 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_YOUCHU_YISENG_NEW)
52 #include "rockchip_gsl1680_7inch_800x480_YouChu_YiSeng.h"
53 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_HAOYUAN_NEW)
54 #include "rockchip_gsl1680_7inch_800x480_HaoYuan_NEW.h"
55 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_XINAGRUIDE_NEW)
56 #include "rockchip_gsl1680_7inch_800x480_XiangRuiDe_NEW.h"
57 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_YOUCHU_NEW)
58 #include "rockchip_gsl1680_7inch_1024x600_YouChu.h"
59 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_HAOYUAN_NEW)
60 #include "rockchip_gsl1680_7inch_1024x600_HaoYuan.h"
61 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_DEYI_NEW)
62 #include "rockchip_gsl1680_7inch_1024x600_DeYi_NEW.h"
63 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_FEICHU_NEW)
64 #include "rockchip_gsl1680_7inch_1024x600_FeiChu_NEW.h"
65 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_K71_NEW)
66 #include "rockchip_gsl1680_7inch_1024x600_K71_NEW.h"
67 #elif defined(CONFIG_GSLX680_9INCH_800X480_NEW)
68 #include "rockchip_gslX680_9inch_800x480.h"
69 #elif defined(CONFIG_GSLX680_9INCH_800X480_TENGYAO_NEW)
70 #include "rockchip_gslX680_9inch_800x480_TengYao.h"
71 #elif defined(CONFIG_GSLX680_9INCH_1024X600_NEW)
72 #include "rockchip_gslX680_9inch_1024x600.h"
73 #elif defined(CONFIG_GSLX680_8INCH_800X600_NEW)
74 #include "rockchip_gslX680_8inch_800x600.h"
75 #elif defined(CONFIG_GSLX680_8INCH_1024X600_NEW)
76 #include "rockchip_gslX680_8inch_1024x600.h"
77 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_43INCH_480x272_HAOYUAN)
78 #include "rockchip_gsl1680_43inch_480x272_YouChu.h"
79 #else
80 #include "rockchip_gslX680.h"
81 #endif
82 #else
83 #endif
84
85 #define REPORT_DATA_ANDROID_4_0
86 #define SLEEP_CLEAR_POINT
87 #ifdef FILTER_POINT
88 #define FILTER_MAX 9
89 #endif
90
91 #define GSLX680_I2C_NAME "gslX680a"
92 #define GSLX680_I2C_ADDR 0x40
93
94 #ifdef OLD_VERSION
95 #ifdef CONFIG_MACH_RK3028A_86V
96 #define IRQ_PORT RK30_PIN3_PC7
97 #if defined(CONFIG_INCAR_PNLVCOM_ADJUST)
98 #define WAKE_PORT RK30_PIN3_PC3
99 #else
100 #define WAKE_PORT RK30_PIN3_PC3
101 #endif
102 #else
103 #if defined(CONFIG_MACH_RK3026_AT8931_NMC1000) || defined(CONFIG_MACH_RK3026_PMU_ACT9831)
104 #define IRQ_PORT RK30_PIN1_PA1
105 #ifdef CONFIG_MACH_RK3026_YK_k71_ACT8931
106 #define WAKE_PORT INVALID_GPIO
107 #else
108 #define WAKE_PORT RK30_PIN2_PB2
109 #endif
110 #elif defined(CONFIG_MACH_RK3026_86V_NOPMU) && defined(CONFIG_MACH_RK3026_86V_WIFI_ESP8089)
111 #define IRQ_PORT RK30_PIN1_PA1
112 #define WAKE_PORT RK30_PIN2_PB2
113 #elif defined(CONFIG_PMIC_AXP192)
114 #define IRQ_PORT RK30_PIN2_PB2
115 #define WAKE_PORT INVALID_GPIO
116 #elif defined(CONFIG_INCAR_PNLVCOM_ADJUST)
117 #define IRQ_PORT RK30_PIN1_PB0
118 #define WAKE_PORT RK30_PIN2_PB2
119 #elif defined(CONFIG_MACH_RK3026_86V_NOPMU)
120 #define IRQ_PORT RK30_PIN1_PA1
121 #define WAKE_PORT INVALID_GPIO
122 #else
123 #define IRQ_PORT RK30_PIN1_PB0
124 #define WAKE_PORT RK30_PIN0_PD3
125 #endif
126 #endif
127 #else
128 static int g_wake_pin;
129 #endif
130 #define GSL_DATA_REG 0x80
131 #define GSL_STATUS_REG 0xe0
132 #define GSL_PAGE_REG 0xf0
133
134 #define TPD_PROC_DEBUG
135 #ifdef TPD_PROC_DEBUG
136 #include <linux/proc_fs.h>
137 #include <linux/uaccess.h>
138 #include <linux/seq_file.h>
139 #define GSL_CONFIG_PROC_FILE "gsl_config"
140 #define CONFIG_LEN 31
141 static char gsl_read[CONFIG_LEN];
142 static u8 gsl_data_proc[8] = {0};
143 static u8 gsl_proc_flag;
144
145 #if defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_1024x600_K71_NEW)
146 static int revert_xy = 1;
147 static int revert_x;
148 static int revert_y;
149 #elif defined(CONFIG_GSLX680_9INCH_800X480_NEW)
150 static int revert_xy = 1;
151 static int revert_x;
152 static int revert_y;
153 #elif defined(CONFIG_TOUCHSCREEN_GSL1680_7INCH_800x480_YOUCHU_NEW)
154 static int revert_xy = 1;
155 static int revert_x = 1;
156 static int revert_y = 1;
157 #elif defined(CONFIG_BOARD_TH71_3128_V1)
158 static int revert_xy = 1;
159 static int revert_x = 1;
160 static int revert_y = 1;
161 #else
162 static int revert_xy = 1;
163 static int revert_x;
164 static int revert_y = 1;
165 #endif
166 #endif
167
168 #define PRESS_MAX 255
169 #define MAX_FINGERS 5
170 #define MAX_CONTACTS 10
171 #define DMA_TRANS_LEN 0x20
172 #ifdef GSL_MONITOR
173 static struct delayed_work gsl_monitor_work;
174 static struct workqueue_struct *gsl_monitor_workqueue;
175 static char int_1st[4] = {0};
176 static char int_2nd[4] = {0};
177 static char dac_counter;
178 static char b0_counter;
179 static char i2c_lock_flag;
180 #endif
181
182 static struct i2c_client *gsl_client;
183
184 #ifdef HAVE_TOUCH_KEY
185 static u16 key;
186 static int key_state_flag;
187 struct key_data {
188 u16 key;
189 u16 x_min;
190 u16 x_max;
191 u16 y_min;
192 u16 y_max;
193 };
194
195 const u16 key_array[] = {
196 KEY_BACK,
197 KEY_HOME,
198 KEY_MENU,
199 KEY_SEARCH,
200 };
201 #define MAX_KEY_NUM (sizeof(key_array) / sizeof(key_array[0]))
202
203 struct key_data gsl_key_data[MAX_KEY_NUM] = {
204 {KEY_BACK, 2048, 2048, 2048, 2048},
205 {KEY_HOME, 2048, 2048, 2048, 2048},
206 {KEY_MENU, 2048, 2048, 2048, 2048},
207 {KEY_SEARCH, 2048, 2048, 2048, 2048},
208 };
209 #endif
210
211 struct gsl_ts_data {
212 u8 x_index;
213 u8 y_index;
214 u8 z_index;
215 u8 id_index;
216 u8 touch_index;
217 u8 data_reg;
218 u8 status_reg;
219 u8 data_size;
220 u8 touch_bytes;
221 u8 update_data;
222 u8 touch_meta_data;
223 u8 finger_size;
224 };
225
226 static struct gsl_ts_data devices[] = {
227 {
228 .x_index = 6,
229 .y_index = 4,
230 .z_index = 5,
231 .id_index = 7,
232 .data_reg = GSL_DATA_REG,
233 .status_reg = GSL_STATUS_REG,
234 .update_data = 0x4,
235 .touch_bytes = 4,
236 .touch_meta_data = 4,
237 .finger_size = 70,
238 },
239 };
240
241 struct gsl_ts {
242 struct i2c_client *client;
243 struct input_dev *input;
244 struct work_struct work;
245 struct workqueue_struct *wq;
246 struct gsl_ts_data *dd;
247 u8 *touch_data;
248 u8 device_id;
249 int irq;
250 int irq_pin;
251 int wake_pin;
252 struct tp_device tp;
253 #if defined(CONFIG_HAS_EARLYSUSPEND)
254 struct early_suspend early_suspend;
255 #endif
256 };
257
258 #ifdef GSL_DEBUG
259 #define print_info(fmt, args...) \
260 do { \
261 pr_info(fmt, ##args); \
262 } while (0)
263 #else
264 #define print_info(fmt, args...)
265 #endif
266
267 static u32 id_sign[MAX_CONTACTS + 1] = {0};
268 static u8 id_state_flag[MAX_CONTACTS + 1] = {0};
269 static u8 id_state_old_flag[MAX_CONTACTS + 1] = {0};
270 static u16 x_old[MAX_CONTACTS + 1] = {0};
271 static u16 y_old[MAX_CONTACTS + 1] = {0};
272 static u16 x_new;
273 static u16 y_new;
274
gslX680_shutdown_low(void)275 static int gslX680_shutdown_low(void)
276 {
277 if (g_wake_pin != 0) {
278 gpio_direction_output(g_wake_pin, 0);
279 gpio_set_value(g_wake_pin, 0);
280 }
281 return 0;
282 }
283
gslX680_shutdown_high(void)284 static int gslX680_shutdown_high(void)
285 {
286 if (g_wake_pin != 0) {
287 gpio_direction_output(g_wake_pin, 0);
288 gpio_set_value(g_wake_pin, 1);
289 }
290 return 0;
291 }
292
join_bytes(u8 a,u8 b)293 static inline u16 join_bytes(u8 a, u8 b)
294 {
295 u16 ab = 0;
296
297 ab = ab | a;
298 ab = ab << 8 | b;
299 return ab;
300 }
301
gsl_write_interface(struct i2c_client * client,const u8 reg,u8 * buf,u32 num)302 static u32 gsl_write_interface(struct i2c_client *client, const u8 reg, u8 *buf, u32 num)
303 {
304 struct i2c_msg xfer_msg[1];
305
306 buf[0] = reg;
307
308 xfer_msg[0].addr = client->addr;
309 xfer_msg[0].len = num + 1;
310 xfer_msg[0].flags = client->flags & I2C_M_TEN;
311 xfer_msg[0].buf = buf;
312
313 return i2c_transfer(client->adapter, xfer_msg, 1) == 1 ? 0 : -EFAULT;
314 }
315
gsl_ts_write(struct i2c_client * client,u8 addr,u8 * pdata,int datalen)316 static int gsl_ts_write(struct i2c_client *client, u8 addr, u8 *pdata, int datalen)
317 {
318 int ret = 0;
319 u8 tmp_buf[128];
320 unsigned int bytelen = 0;
321
322 if (datalen > 125) {
323 pr_info("%s too big datalen = %d!\n", __func__, datalen);
324 return -1;
325 }
326
327 tmp_buf[0] = addr;
328 bytelen++;
329
330 if (datalen != 0 && pdata != NULL) {
331 memcpy(&tmp_buf[bytelen], pdata, datalen);
332 bytelen += datalen;
333 }
334
335 ret = i2c_master_send(client, tmp_buf, bytelen);
336 return ret;
337 }
338
gsl_ts_read(struct i2c_client * client,u8 addr,u8 * pdata,unsigned int datalen)339 static int gsl_ts_read(struct i2c_client *client, u8 addr, u8 *pdata, unsigned int datalen)
340 {
341 int ret = 0;
342
343 if (datalen > 126) {
344 pr_info("%s too big datalen = %d!\n", __func__, datalen);
345 return -1;
346 }
347
348 ret = gsl_ts_write(client, addr, NULL, 0);
349 if (ret < 0) {
350 pr_info("%s set data address fail!\n", __func__);
351 return ret;
352 }
353
354 return i2c_master_recv(client, pdata, datalen);
355 }
356
fw2buf(u8 * buf,const u32 * fw)357 static __inline__ void fw2buf(u8 *buf, const u32 *fw)
358 {
359 u32 *u32_buf = (int *)buf;
360 *u32_buf = *fw;
361 }
362
gsl_load_fw(struct i2c_client * client)363 static void gsl_load_fw(struct i2c_client *client)
364 {
365 u8 buf[DMA_TRANS_LEN * 4 + 1] = {0};
366 u8 send_flag = 1;
367 u8 *cur = buf + 1;
368 u32 source_line = 0;
369 u32 source_len;
370 struct fw_data *ptr_fw;
371
372 pr_info("=============gsl_load_fw start==============\n");
373
374 ptr_fw = GSLX680_FW;
375 source_len = ARRAY_SIZE(GSLX680_FW);
376
377 for (source_line = 0; source_line < source_len; source_line++) {
378 /* init page trans, set the page val */
379 if (ptr_fw[source_line].offset == GSL_PAGE_REG) {
380 fw2buf(cur, &ptr_fw[source_line].val);
381 gsl_write_interface(client, GSL_PAGE_REG, buf, 4);
382 send_flag = 1;
383 } else {
384 if (send_flag % (DMA_TRANS_LEN < 0x20 ? DMA_TRANS_LEN : 0x20) == 1)
385 buf[0] = (u8)ptr_fw[source_line].offset;
386
387 fw2buf(cur, &ptr_fw[source_line].val);
388 cur += 4;
389
390 if (send_flag % (DMA_TRANS_LEN < 0x20 ? DMA_TRANS_LEN : 0x20) == 0) {
391 gsl_write_interface(client, buf[0], buf, cur - buf - 1);
392 cur = buf + 1;
393 }
394
395 send_flag++;
396 }
397 }
398
399 pr_info("=============gsl_load_fw end==============\n");
400 }
401
test_i2c(struct i2c_client * client)402 static int test_i2c(struct i2c_client *client)
403 {
404 u8 read_buf = 0;
405 u8 write_buf = 0x12;
406 int ret, rc = 1;
407
408 ret = gsl_ts_read(client, 0xf0, &read_buf, sizeof(read_buf));
409 if (ret < 0)
410 rc--;
411 else
412 pr_info("I read reg 0xf0 is %x\n", read_buf);
413
414 msleep(2);
415 ret = gsl_ts_write(client, 0xf0, &write_buf, sizeof(write_buf));
416 if (ret >= 0)
417 pr_info("I write reg 0xf0 0x12\n");
418 msleep(2);
419 ret = gsl_ts_read(client, 0xf0, &read_buf, sizeof(read_buf));
420 if (ret < 0)
421 rc--;
422 else
423 pr_info("I read reg 0xf0 is 0x%x\n", read_buf);
424
425 return rc;
426 }
427
startup_chip(struct i2c_client * client)428 static void startup_chip(struct i2c_client *client)
429 {
430 u8 tmp = 0x00;
431
432 #ifdef GSL_NOID_VERSION
433 gsl_DataInit(gsl_config_data_id);
434 #endif
435 gsl_ts_write(client, 0xe0, &tmp, 1);
436 msleep(10);
437 }
438
reset_chip(struct i2c_client * client)439 static void reset_chip(struct i2c_client *client)
440 {
441 u8 tmp = 0x88;
442 u8 buf[4] = {0x00};
443
444 gsl_ts_write(client, 0xe0, &tmp, sizeof(tmp));
445 msleep(20);
446 tmp = 0x04;
447 gsl_ts_write(client, 0xe4, &tmp, sizeof(tmp));
448 msleep(10);
449 gsl_ts_write(client, 0xbc, buf, sizeof(buf));
450 msleep(10);
451 }
452
clr_reg(struct i2c_client * client)453 static void clr_reg(struct i2c_client *client)
454 {
455 u8 write_buf[4] = {0};
456
457 write_buf[0] = 0x88;
458 gsl_ts_write(client, 0xe0, &write_buf[0], 1);
459 msleep(20);
460 write_buf[0] = 0x03;
461 gsl_ts_write(client, 0x80, &write_buf[0], 1);
462 msleep(5);
463 write_buf[0] = 0x04;
464 gsl_ts_write(client, 0xe4, &write_buf[0], 1);
465 msleep(5);
466 write_buf[0] = 0x00;
467 gsl_ts_write(client, 0xe0, &write_buf[0], 1);
468 msleep(20);
469 }
470
init_chip(struct i2c_client * client)471 static void init_chip(struct i2c_client *client)
472 {
473 int rc;
474 int i;
475
476 gslX680_shutdown_low();
477 msleep(20);
478 gslX680_shutdown_high();
479 msleep(20);
480 for (i = 0; i < 10; i++) {
481 rc = test_i2c(client);
482 if (rc >= 0)
483 break;
484 }
485 if (rc < 0) {
486 pr_info("------gslX680 test_i2c error------\n");
487 return;
488 }
489 clr_reg(client);
490 reset_chip(client);
491 gsl_load_fw(client);
492 startup_chip(client);
493 reset_chip(client);
494 startup_chip(client);
495 }
496
check_mem_data(struct i2c_client * client)497 static void check_mem_data(struct i2c_client *client)
498 {
499 u8 read_buf[4] = {0};
500
501 msleep(30);
502 gsl_ts_read(client, 0xb0, read_buf, sizeof(read_buf));
503
504 if (read_buf[3] != 0x5a || read_buf[2] != 0x5a || read_buf[1] != 0x5a || read_buf[0] != 0x5a) {
505 pr_info("#########check mem read 0xb0 = %x %x %x %x #########\n", read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
506 init_chip(client);
507 }
508 }
509
510 #ifdef TPD_PROC_DEBUG
char_to_int(char ch)511 static int char_to_int(char ch)
512 {
513 if (ch >= '0' && ch <= '9')
514 return (ch - '0');
515 else
516 return (ch - 'a' + 10);
517 }
518
gsl_config_read_proc(struct seq_file * m,void * v)519 static int gsl_config_read_proc(struct seq_file *m, void *v)
520 {
521 char temp_data[5] = {0};
522 unsigned int tmp = 0;
523
524 if ('v' == gsl_read[0] && 's' == gsl_read[1]) {
525 #ifdef GSL_NOID_VERSION
526 tmp = gsl_version_id();
527 #else
528 tmp = 0x20121215;
529 #endif
530 seq_printf(m, "version:%x\n", tmp);
531 } else if ('r' == gsl_read[0] && 'e' == gsl_read[1]) {
532 if ('i' == gsl_read[3]) {
533 #ifdef GSL_NOID_VERSION
534 tmp = (gsl_data_proc[5] << 8) | gsl_data_proc[4];
535 seq_printf(m, "gsl_config_data_id[%d] = ", tmp);
536 if (tmp >= 0 && tmp < ARRAY_SIZE(gsl_config_data_id))
537 seq_printf(m, "%d\n", gsl_config_data_id[tmp]);
538 #endif
539 } else {
540 gsl_ts_write(gsl_client, 0Xf0, &gsl_data_proc[4], 4);
541 if (gsl_data_proc[0] < 0x80)
542 gsl_ts_read(gsl_client, gsl_data_proc[0], temp_data, 4);
543 gsl_ts_read(gsl_client, gsl_data_proc[0], temp_data, 4);
544
545 seq_printf(m, "offset : {0x%02x,0x", gsl_data_proc[0]);
546 seq_printf(m, "%02x", temp_data[3]);
547 seq_printf(m, "%02x", temp_data[2]);
548 seq_printf(m, "%02x", temp_data[1]);
549 seq_printf(m, "%02x};\n", temp_data[0]);
550 }
551 }
552
553 return 0;
554 }
555
gsl_config_write_proc(struct file * file,const char __user * buffer,size_t count,loff_t * data)556 static ssize_t gsl_config_write_proc(struct file *file, const char __user *buffer, size_t count, loff_t *data)
557 {
558 u8 buf[8] = {0};
559 char temp_buf[CONFIG_LEN];
560 char *path_buf;
561 int tmp = 0;
562 int tmp1 = 0;
563
564 print_info("[tp-gsl][%s] \n", __func__);
565 if (count > 512) {
566 print_info("size not match [%d:%ld]\n", CONFIG_LEN, count);
567 return -EFAULT;
568 }
569 path_buf = kzalloc(count, GFP_KERNEL);
570 if (!path_buf) {
571 pr_info("alloc path_buf memory error \n");
572 return -ENOMEM;
573 }
574 if (copy_from_user(path_buf, buffer, count)) {
575 print_info("copy from user fail\n");
576 goto exit_write_proc_out;
577 }
578 memcpy(temp_buf, path_buf, (count < CONFIG_LEN ? count : CONFIG_LEN));
579 print_info("[tp-gsl][%s][%s]\n", __func__, temp_buf);
580
581 buf[3] = char_to_int(temp_buf[14]) << 4 | char_to_int(temp_buf[15]);
582 buf[2] = char_to_int(temp_buf[16]) << 4 | char_to_int(temp_buf[17]);
583 buf[1] = char_to_int(temp_buf[18]) << 4 | char_to_int(temp_buf[19]);
584 buf[0] = char_to_int(temp_buf[20]) << 4 | char_to_int(temp_buf[21]);
585
586 buf[7] = char_to_int(temp_buf[5]) << 4 | char_to_int(temp_buf[6]);
587 buf[6] = char_to_int(temp_buf[7]) << 4 | char_to_int(temp_buf[8]);
588 buf[5] = char_to_int(temp_buf[9]) << 4 | char_to_int(temp_buf[10]);
589 buf[4] = char_to_int(temp_buf[11]) << 4 | char_to_int(temp_buf[12]);
590 if ('v' == temp_buf[0] && 's' == temp_buf[1]) {
591 memcpy(gsl_read, temp_buf, 4);
592 pr_info("gsl version\n");
593 } else if ('s' == temp_buf[0] && 't' == temp_buf[1]) {
594 #ifdef GSL_MONITOR
595 cancel_delayed_work_sync(&gsl_monitor_work);
596 #endif
597 gsl_proc_flag = 1;
598 reset_chip(gsl_client);
599 } else if ('e' == temp_buf[0] && 'n' == temp_buf[1]) {
600 msleep(20);
601 reset_chip(gsl_client);
602 startup_chip(gsl_client);
603 gsl_proc_flag = 0;
604 } else if ('r' == temp_buf[0] && 'e' == temp_buf[1]) {
605 memcpy(gsl_read, temp_buf, 4);
606 memcpy(gsl_data_proc, buf, 8);
607 } else if ('w' == temp_buf[0] && 'r' == temp_buf[1]) {
608 gsl_ts_write(gsl_client, buf[4], buf, 4);
609 }
610 #ifdef GSL_NOID_VERSION
611 else if ('i' == temp_buf[0] && 'd' == temp_buf[1]) {
612 tmp1 = (buf[7] << 24) | (buf[6] << 16) | (buf[5] << 8) | buf[4];
613 tmp = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0];
614 if (tmp1 >= 0 && tmp1 < ARRAY_SIZE(gsl_config_data_id))
615 gsl_config_data_id[tmp1] = tmp;
616 }
617 #endif
618 exit_write_proc_out:
619 kfree(path_buf);
620 return count;
621 }
622
gsl_server_list_open(struct inode * inode,struct file * file)623 static int gsl_server_list_open(struct inode *inode, struct file *file)
624 {
625 return single_open(file, gsl_config_read_proc, NULL);
626 }
627
628 static const struct file_operations gsl_seq_fops = {
629 .open = gsl_server_list_open,
630 .read = seq_read,
631 .release = single_release,
632 .write = gsl_config_write_proc,
633 .owner = THIS_MODULE,
634 };
635 #endif
636
637 #ifdef FILTER_POINT
filter_point(u16 x,u16 y,u8 id)638 static void filter_point(u16 x, u16 y, u8 id)
639 {
640 u16 x_err = 0;
641 u16 y_err = 0;
642 u16 filter_step_x = 0, filter_step_y = 0;
643
644 id_sign[id] = id_sign[id] + 1;
645 if (id_sign[id] == 1) {
646 x_old[id] = x;
647 y_old[id] = y;
648 }
649
650 x_err = x > x_old[id] ? (x - x_old[id]) : (x_old[id] - x);
651 y_err = y > y_old[id] ? (y - y_old[id]) : (y_old[id] - y);
652
653 if ((x_err > FILTER_MAX && y_err > FILTER_MAX / 3) || (x_err > FILTER_MAX / 3 && y_err > FILTER_MAX)) {
654 filter_step_x = x_err;
655 filter_step_y = y_err;
656 } else {
657 if (x_err > FILTER_MAX)
658 filter_step_x = x_err;
659 if (y_err > FILTER_MAX)
660 filter_step_y = y_err;
661 }
662
663 if (x_err <= 2 * FILTER_MAX && y_err <= 2 * FILTER_MAX) {
664 filter_step_x >>= 2;
665 filter_step_y >>= 2;
666 } else if (x_err <= 3 * FILTER_MAX && y_err <= 3 * FILTER_MAX) {
667 filter_step_x >>= 1;
668 filter_step_y >>= 1;
669 } else if (x_err <= 4 * FILTER_MAX && y_err <= 4 * FILTER_MAX) {
670 filter_step_x = filter_step_x * 3 / 4;
671 filter_step_y = filter_step_y * 3 / 4;
672 }
673
674 x_new = x > x_old[id] ? (x_old[id] + filter_step_x) : (x_old[id] - filter_step_x);
675 y_new = y > y_old[id] ? (y_old[id] + filter_step_y) : (y_old[id] - filter_step_y);
676
677 x_old[id] = x_new;
678 y_old[id] = y_new;
679 }
680 #else
record_point(u16 x,u16 y,u8 id)681 static void record_point(u16 x, u16 y, u8 id)
682 {
683 u16 x_err = 0;
684 u16 y_err = 0;
685
686 id_sign[id] = id_sign[id] + 1;
687
688 if (id_sign[id] == 1) {
689 x_old[id] = x;
690 y_old[id] = y;
691 }
692
693 x = (x_old[id] + x) / 2;
694 y = (y_old[id] + y) / 2;
695
696 if (x > x_old[id])
697 x_err = x - x_old[id];
698 else
699 x_err = x_old[id] - x;
700
701 if (y > y_old[id])
702 y_err = y - y_old[id];
703 else
704 y_err = y_old[id] - y;
705
706 if ((x_err > 3 && y_err > 1) || (x_err > 1 && y_err > 3)) {
707 x_new = x;
708 x_old[id] = x;
709 y_new = y;
710 y_old[id] = y;
711 } else {
712 if (x_err > 3) {
713 x_new = x;
714 x_old[id] = x;
715 } else {
716 x_new = x_old[id];
717 }
718 if (y_err > 3) {
719 y_new = y;
720 y_old[id] = y;
721 } else {
722 y_new = y_old[id];
723 }
724 }
725
726 if (id_sign[id] == 1) {
727 x_new = x_old[id];
728 y_new = y_old[id];
729 }
730 }
731 #endif
732
733 #ifdef HAVE_TOUCH_KEY
report_key(struct gsl_ts * ts,u16 x,u16 y)734 static void report_key(struct gsl_ts *ts, u16 x, u16 y)
735 {
736 u16 i = 0;
737
738 for (i = 0; i < MAX_KEY_NUM; i++) {
739 if ((gsl_key_data[i].x_min < x) && (x < gsl_key_data[i].x_max) && (gsl_key_data[i].y_min < y) && (y < gsl_key_data[i].y_max)) {
740 key = gsl_key_data[i].key;
741 input_report_key(ts->input, key, 1);
742 input_sync(ts->input);
743 key_state_flag = 1;
744 break;
745 }
746 }
747 }
748 #endif
749
report_data(struct gsl_ts * ts,u16 x,u16 y,u8 pressure,u8 id)750 static void report_data(struct gsl_ts *ts, u16 x, u16 y, u8 pressure, u8 id)
751 {
752 if (revert_xy)
753 swap(x, y);
754
755 print_info("#####id=%d,x=%d,y=%d######\n", id, x, y);
756
757 if (x > SCREEN_MAX_X || y > SCREEN_MAX_Y) {
758 #ifdef HAVE_TOUCH_KEY
759 report_key(ts, x, y);
760 #endif
761 return;
762 }
763
764 if (revert_x)
765 x = SCREEN_MAX_X - x - 1;
766 if (revert_y)
767 y = SCREEN_MAX_Y - y - 1;
768 #ifdef REPORT_DATA_ANDROID_4_0
769 input_mt_slot(ts->input, id);
770 input_report_abs(ts->input, ABS_MT_TRACKING_ID, id);
771 input_report_abs(ts->input, ABS_MT_TOUCH_MAJOR, pressure);
772 input_report_abs(ts->input, ABS_MT_POSITION_X, x);
773 input_report_abs(ts->input, ABS_MT_POSITION_Y, y);
774 input_report_abs(ts->input, ABS_MT_WIDTH_MAJOR, 1);
775 #else
776 input_report_abs(ts->input, ABS_MT_TRACKING_ID, id);
777 input_report_abs(ts->input, ABS_MT_TOUCH_MAJOR, pressure);
778 input_report_abs(ts->input, ABS_MT_POSITION_X, x);
779 input_report_abs(ts->input, ABS_MT_POSITION_Y, y);
780 input_report_abs(ts->input, ABS_MT_WIDTH_MAJOR, 1);
781 input_mt_sync(ts->input);
782 #endif
783 }
784
gslX680_ts_worker(struct work_struct * work)785 static void gslX680_ts_worker(struct work_struct *work)
786 {
787 int rc, i;
788 u8 id, touches;
789 u16 x, y;
790 #ifdef GSL_NOID_VERSION
791 unsigned int tmp1;
792 u8 buf[4] = {0};
793 struct gsl_touch_info cinfo;
794 #endif
795 struct gsl_ts *ts = container_of(work, struct gsl_ts, work);
796
797 print_info("=====gslX680_ts_worker=====\n");
798
799 #ifdef TPD_PROC_DEBUG
800 if (gsl_proc_flag == 1)
801 goto schedule;
802 #endif
803
804 #ifdef GSL_MONITOR
805 if (i2c_lock_flag != 0)
806 goto i2c_lock_schedule;
807 else
808 i2c_lock_flag = 1;
809 #endif
810
811 rc = gsl_ts_read(ts->client, 0x80, ts->touch_data, ts->dd->data_size);
812 if (rc < 0) {
813 dev_err(&ts->client->dev, "read failed\n");
814 reset_chip(ts->client);
815 startup_chip(ts->client);
816 goto schedule;
817 }
818
819 touches = ts->touch_data[ts->dd->touch_index];
820 print_info("-----touches: %d -----\n", touches);
821 #ifdef GSL_NOID_VERSION
822 cinfo.finger_num = touches;
823 print_info("tp-gsl finger_num = %d\n", cinfo.finger_num);
824 for (i = 0; i < (touches < MAX_CONTACTS ? touches : MAX_CONTACTS); i++) {
825 cinfo.x[i] = join_bytes((ts->touch_data[ts->dd->x_index + 4 * i + 1] & 0xf),
826 ts->touch_data[ts->dd->x_index + 4 * i]);
827 cinfo.y[i] = join_bytes(ts->touch_data[ts->dd->y_index + 4 * i + 1],
828 ts->touch_data[ts->dd->y_index + 4 * i]);
829 print_info("tp-gsl x = %d y = %d \n", cinfo.x[i], cinfo.y[i]);
830 }
831 cinfo.finger_num = (ts->touch_data[3] << 24) | (ts->touch_data[2] << 16)
832 | (ts->touch_data[1] << 8) | (ts->touch_data[0]);
833 gsl_alg_id_main(&cinfo);
834 tmp1 = gsl_mask_tiaoping();
835 print_info("[tp-gsl] tmp1=%x\n", tmp1);
836 if (tmp1 > 0 && tmp1 < 0xffffffff) {
837 buf[0] = 0xa;
838 buf[1] = 0;
839 buf[2] = 0;
840 buf[3] = 0;
841 gsl_ts_write(ts->client, 0xf0, buf, 4);
842 buf[0] = (u8)(tmp1 & 0xff);
843 buf[1] = (u8)((tmp1 >> 8) & 0xff);
844 buf[2] = (u8)((tmp1 >> 16) & 0xff);
845 buf[3] = (u8)((tmp1 >> 24) & 0xff);
846 print_info("tmp1=%08x,buf[0]=%02x,buf[1]=%02x,buf[2]=%02x,buf[3]=%02x\n",
847 tmp1, buf[0], buf[1], buf[2], buf[3]);
848 gsl_ts_write(ts->client, 0x8, buf, 4);
849 }
850 touches = cinfo.finger_num;
851 #endif
852
853 for (i = 1; i <= MAX_CONTACTS; i++) {
854 if (touches == 0)
855 id_sign[i] = 0;
856 id_state_flag[i] = 0;
857 }
858 for (i = 0; i < (touches > MAX_FINGERS ? MAX_FINGERS : touches); i++) {
859 #ifdef GSL_NOID_VERSION
860 id = cinfo.id[i];
861 x = cinfo.x[i];
862 y = cinfo.y[i];
863 #else
864 x = join_bytes((ts->touch_data[ts->dd->x_index + 4 * i + 1] & 0xf),
865 ts->touch_data[ts->dd->x_index + 4 * i]);
866 y = join_bytes(ts->touch_data[ts->dd->y_index + 4 * i + 1],
867 ts->touch_data[ts->dd->y_index + 4 * i]);
868 id = ts->touch_data[ts->dd->id_index + 4 * i] >> 4;
869 #endif
870
871 if (id >= 1 && id <= MAX_CONTACTS) {
872 #ifdef FILTER_POINT
873 filter_point(x, y, id);
874 #else
875 record_point(x, y, id);
876 #endif
877 report_data(ts, x_new, y_new, 10, id);
878 id_state_flag[id] = 1;
879 }
880 }
881 for (i = 1; i <= MAX_CONTACTS; i++) {
882 if ((touches == 0) || ((id_state_old_flag[i] != 0) && (id_state_flag[i] == 0))) {
883 #ifdef REPORT_DATA_ANDROID_4_0
884 input_mt_slot(ts->input, i);
885 input_report_abs(ts->input, ABS_MT_TRACKING_ID, -1);
886 input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, false);
887 #endif
888 id_sign[i] = 0;
889 }
890 id_state_old_flag[i] = id_state_flag[i];
891 }
892 #ifndef REPORT_DATA_ANDROID_4_0
893 if (touches == 0) {
894 input_mt_sync(ts->input);
895 #ifdef HAVE_TOUCH_KEY
896 if (key_state_flag) {
897 input_report_key(ts->input, key, 0);
898 input_sync(ts->input);
899 key_state_flag = 0;
900 }
901 #endif
902 }
903 #endif
904 input_sync(ts->input);
905
906 schedule:
907 #ifdef GSL_MONITOR
908 i2c_lock_flag = 0;
909 i2c_lock_schedule:
910 #endif
911 enable_irq(ts->irq);
912 }
913
914 #ifdef GSL_MONITOR
gsl_monitor_worker(void)915 static void gsl_monitor_worker(void)
916 {
917 char write_buf[4] = {0};
918 char read_buf[4] = {0};
919
920 print_info("----------------gsl_monitor_worker-----------------\n");
921
922 if (i2c_lock_flag != 0)
923 goto queue_monitor_work;
924 else
925 i2c_lock_flag = 1;
926
927 gsl_ts_read(gsl_client, 0xb0, read_buf, 4);
928 if (read_buf[3] != 0x5a || read_buf[2] != 0x5a || read_buf[1] != 0x5a || read_buf[0] != 0x5a)
929 b0_counter++;
930 else
931 b0_counter = 0;
932
933 if (b0_counter > 1) {
934 pr_info("======read 0xb0: %x %x %x %x ======\n", read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
935 init_chip(gsl_client);
936 b0_counter = 0;
937 }
938
939 gsl_ts_read(gsl_client, 0xb4, read_buf, 4);
940 int_2nd[3] = int_1st[3];
941 int_2nd[2] = int_1st[2];
942 int_2nd[1] = int_1st[1];
943 int_2nd[0] = int_1st[0];
944 int_1st[3] = read_buf[3];
945 int_1st[2] = read_buf[2];
946 int_1st[1] = read_buf[1];
947 int_1st[0] = read_buf[0];
948
949 if (int_1st[3] == int_2nd[3] && int_1st[2] == int_2nd[2] && int_1st[1] == int_2nd[1] && int_1st[0] == int_2nd[0]) {
950 pr_info("======int_1st: %x %x %x %x , int_2nd: %x %x %x %x ======\n", int_1st[3], int_1st[2], int_1st[1], int_1st[0], int_2nd[3], int_2nd[2], int_2nd[1], int_2nd[0]);
951 init_chip(gsl_client);
952 }
953
954 write_buf[3] = 0x01;
955 write_buf[2] = 0xfe;
956 write_buf[1] = 0x10;
957 write_buf[0] = 0x00;
958 gsl_ts_write(gsl_client, 0xf0, write_buf, 4);
959 gsl_ts_read(gsl_client, 0x10, read_buf, 4);
960 gsl_ts_read(gsl_client, 0x10, read_buf, 4);
961
962 if (read_buf[3] < 10 && read_buf[2] < 10 && read_buf[1] < 10 && read_buf[0] < 10)
963 dac_counter++;
964 else
965 dac_counter = 0;
966
967 if (dac_counter > 1) {
968 pr_info("======read DAC1_0: %x %x %x %x ======\n", read_buf[3], read_buf[2], read_buf[1], read_buf[0]);
969 init_chip(gsl_client);
970 dac_counter = 0;
971 }
972
973 i2c_lock_flag = 0;
974
975 queue_monitor_work:
976 queue_delayed_work(gsl_monitor_workqueue, &gsl_monitor_work, 100);
977 }
978 #endif
979
gsl_ts_irq(int irq,void * dev_id)980 static irqreturn_t gsl_ts_irq(int irq, void *dev_id)
981 {
982 struct gsl_ts *ts = dev_id;
983
984 print_info("========gslX680 Interrupt=========\n");
985
986 disable_irq_nosync(ts->irq);
987
988 if (!work_pending(&ts->work))
989 queue_work(ts->wq, &ts->work);
990
991 return IRQ_HANDLED;
992 }
993
gslX680_ts_init(struct i2c_client * client,struct gsl_ts * ts)994 static int gslX680_ts_init(struct i2c_client *client, struct gsl_ts *ts)
995 {
996 struct input_dev *input_device;
997 int rc = 0;
998
999 pr_info("[GSLX680] Enter %s\n", __func__);
1000
1001 ts->dd = &devices[ts->device_id];
1002
1003 if (ts->device_id == 0) {
1004 ts->dd->data_size = MAX_FINGERS * ts->dd->touch_bytes + ts->dd->touch_meta_data;
1005 ts->dd->touch_index = 0;
1006 }
1007
1008 ts->touch_data = devm_kzalloc(&client->dev, ts->dd->data_size, GFP_KERNEL);
1009 if (!ts->touch_data) {
1010 pr_err("%s: Unable to allocate memory\n", __func__);
1011 return -ENOMEM;
1012 }
1013
1014 input_device = devm_input_allocate_device(&client->dev);
1015 if (!input_device) {
1016 rc = -ENOMEM;
1017 goto error_alloc_dev;
1018 }
1019
1020 ts->input = input_device;
1021 input_device->name = GSLX680_I2C_NAME;
1022 input_device->id.bustype = BUS_I2C;
1023 input_device->dev.parent = &client->dev;
1024 input_set_drvdata(input_device, ts);
1025
1026 #ifdef REPORT_DATA_ANDROID_4_0
1027 __set_bit(EV_ABS, input_device->evbit);
1028 __set_bit(EV_KEY, input_device->evbit);
1029 __set_bit(EV_REP, input_device->evbit);
1030 __set_bit(INPUT_PROP_DIRECT, input_device->propbit);
1031 input_mt_init_slots(input_device, (MAX_CONTACTS + 1), 0);
1032 #else
1033 input_set_abs_params(input_device, ABS_MT_TRACKING_ID, 0, (MAX_CONTACTS + 1), 0, 0);
1034 set_bit(EV_ABS, input_device->evbit);
1035 set_bit(EV_KEY, input_device->evbit);
1036 __set_bit(INPUT_PROP_DIRECT, input_device->propbit);
1037 input_device->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
1038 #endif
1039
1040 #ifdef HAVE_TOUCH_KEY
1041 input_device->evbit[0] = BIT_MASK(EV_KEY);
1042 for (i = 0; i < MAX_KEY_NUM; i++)
1043 set_bit(key_array[i], input_device->keybit);
1044 #endif
1045
1046 set_bit(ABS_MT_POSITION_X, input_device->absbit);
1047 set_bit(ABS_MT_POSITION_Y, input_device->absbit);
1048 set_bit(ABS_MT_TOUCH_MAJOR, input_device->absbit);
1049 set_bit(ABS_MT_WIDTH_MAJOR, input_device->absbit);
1050
1051 input_set_abs_params(input_device, ABS_MT_POSITION_X, 0, SCREEN_MAX_X, 0, 0);
1052 input_set_abs_params(input_device, ABS_MT_POSITION_Y, 0, SCREEN_MAX_Y, 0, 0);
1053 input_set_abs_params(input_device, ABS_MT_TOUCH_MAJOR, 0, PRESS_MAX, 0, 0);
1054 input_set_abs_params(input_device, ABS_MT_WIDTH_MAJOR, 0, 200, 0, 0);
1055
1056 ts->wq = create_singlethread_workqueue("kworkqueue_ts");
1057 if (!ts->wq) {
1058 dev_err(&client->dev, "Could not create workqueue\n");
1059 goto error_wq_create;
1060 }
1061 flush_workqueue(ts->wq);
1062
1063 INIT_WORK(&ts->work, gslX680_ts_worker);
1064
1065 rc = input_register_device(input_device);
1066 if (rc)
1067 goto error_unreg_device;
1068
1069 return 0;
1070
1071 error_unreg_device:
1072 destroy_workqueue(ts->wq);
1073 error_wq_create:
1074 error_alloc_dev:
1075 return rc;
1076 }
1077
gsl_ts_suspend(struct device * dev)1078 static int gsl_ts_suspend(struct device *dev)
1079 {
1080 struct gsl_ts *ts = dev_get_drvdata(dev);
1081 int i;
1082
1083 pr_info("I'am in gsl_ts_suspend() start\n");
1084
1085 #ifdef GSL_MONITOR
1086 pr_info("gsl_ts_suspend () : cancel gsl_monitor_work\n");
1087 cancel_delayed_work_sync(&gsl_monitor_work);
1088 #endif
1089
1090 disable_irq_nosync(ts->irq);
1091
1092 gslX680_shutdown_low();
1093
1094 #ifdef SLEEP_CLEAR_POINT
1095 msleep(10);
1096 #ifdef REPORT_DATA_ANDROID_4_0
1097 for (i = 1; i <= MAX_CONTACTS; i++) {
1098 input_mt_slot(ts->input, i);
1099 input_report_abs(ts->input, ABS_MT_TRACKING_ID, -1);
1100 input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, false);
1101 }
1102 #else
1103 input_mt_sync(ts->input);
1104 #endif
1105 input_sync(ts->input);
1106 msleep(10);
1107 report_data(ts, 1, 1, 10, 1);
1108 input_sync(ts->input);
1109 #endif
1110
1111 return 0;
1112 }
1113
gsl_ts_resume(struct device * dev)1114 static int gsl_ts_resume(struct device *dev)
1115 {
1116 struct gsl_ts *ts = dev_get_drvdata(dev);
1117 int i;
1118
1119 pr_info("I'am in gsl_ts_resume() start\n");
1120
1121 gslX680_shutdown_high();
1122 msleep(20);
1123 reset_chip(ts->client);
1124 startup_chip(ts->client);
1125 check_mem_data(ts->client);
1126
1127 #ifdef SLEEP_CLEAR_POINT
1128 #ifdef REPORT_DATA_ANDROID_4_0
1129 for (i = 1; i <= MAX_CONTACTS; i++) {
1130 input_mt_slot(ts->input, i);
1131 input_report_abs(ts->input, ABS_MT_TRACKING_ID, -1);
1132 input_mt_report_slot_state(ts->input, MT_TOOL_FINGER, false);
1133 }
1134 #else
1135 input_mt_sync(ts->input);
1136 #endif
1137 input_sync(ts->input);
1138 #endif
1139 #ifdef GSL_MONITOR
1140 pr_info("gsl_ts_resume () : queue gsl_monitor_work\n");
1141 queue_delayed_work(gsl_monitor_workqueue, &gsl_monitor_work, 300);
1142 #endif
1143 pr_info("gsl_ts_resume () end\n");
1144 enable_irq(ts->irq);
1145 return 0;
1146 }
1147
1148 #if 1
gsl_ts_early_suspend(struct tp_device * tp_d)1149 static int gsl_ts_early_suspend(struct tp_device *tp_d)
1150 {
1151 struct gsl_ts *ts = container_of(tp_d, struct gsl_ts, tp);
1152
1153 pr_info("[GSLX680] Enter %s\n", __func__);
1154 return gsl_ts_suspend(&ts->client->dev);
1155 }
1156
gsl_ts_late_resume(struct tp_device * tp_d)1157 static int gsl_ts_late_resume(struct tp_device *tp_d)
1158 {
1159 struct gsl_ts *ts = container_of(tp_d, struct gsl_ts, tp);
1160
1161 pr_info("[GSLX680] Enter %s\n", __func__);
1162 return gsl_ts_resume(&ts->client->dev);
1163 }
1164 #endif
1165
gsl_ts_probe(struct i2c_client * client,const struct i2c_device_id * id)1166 static int gsl_ts_probe(struct i2c_client *client, const struct i2c_device_id *id)
1167 {
1168 struct gsl_ts *ts;
1169 int rc;
1170 struct device_node *np = client->dev.of_node;
1171 enum of_gpio_flags wake_flags;
1172 unsigned long irq_flags;
1173
1174 pr_info("GSLX680 Enter %s\n", __func__);
1175 if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
1176 dev_err(&client->dev, "I2C functionality not supported\n");
1177 return -ENODEV;
1178 }
1179 ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL);
1180 if (!ts)
1181 return -ENOMEM;
1182 pr_info("==kzalloc success=\n");
1183
1184 ts->client = client;
1185 i2c_set_clientdata(client, ts);
1186 ts->device_id = id->driver_data;
1187
1188 ts->irq_pin = of_get_named_gpio_flags(np, "irq-gpio", 0, (enum of_gpio_flags *)&irq_flags);
1189 ts->wake_pin = of_get_named_gpio_flags(np, "wake-gpio", 0, &wake_flags);
1190
1191 if (gpio_is_valid(ts->wake_pin)) {
1192 rc = devm_gpio_request_one(&client->dev, ts->wake_pin, (wake_flags & OF_GPIO_ACTIVE_LOW) ? GPIOF_OUT_INIT_LOW : GPIOF_OUT_INIT_HIGH, "gslX680 wake pin");
1193 if (rc != 0) {
1194 dev_err(&client->dev, "gslX680 wake pin error\n");
1195 return -EIO;
1196 }
1197 g_wake_pin = ts->wake_pin;
1198 } else {
1199 dev_info(&client->dev, "wake pin invalid\n");
1200 }
1201 if (gpio_is_valid(ts->irq_pin)) {
1202 rc = devm_gpio_request_one(&client->dev, ts->irq_pin, (irq_flags & OF_GPIO_ACTIVE_LOW) ? GPIOF_OUT_INIT_LOW : GPIOF_OUT_INIT_HIGH, "gslX680 irq pin");
1203 if (rc != 0) {
1204 dev_err(&client->dev, "gslX680 irq pin error\n");
1205 return -EIO;
1206 }
1207 } else {
1208 dev_info(&client->dev, "irq pin invalid\n");
1209 }
1210
1211 rc = gslX680_ts_init(client, ts);
1212 if (rc < 0) {
1213 dev_err(&client->dev, "GSLX680 init failed\n");
1214 goto error_mutex_destroy;
1215 }
1216
1217 gsl_client = client;
1218
1219 init_chip(ts->client);
1220 check_mem_data(ts->client);
1221
1222 ts->irq = gpio_to_irq(ts->irq_pin);
1223 if (ts->irq) {
1224 rc = devm_request_irq(&client->dev, ts->irq, gsl_ts_irq, IRQF_TRIGGER_RISING, client->name, ts);
1225 if (rc != 0) {
1226 pr_info("Cannot allocate ts INT!ERRNO:%d\n", rc);
1227 goto error_req_irq_fail;
1228 }
1229 } else {
1230 pr_info("gsl x680 irq req fail\n");
1231 goto error_req_irq_fail;
1232 }
1233 /* create debug attribute */
1234 ts->tp.tp_resume = gsl_ts_late_resume;
1235 ts->tp.tp_suspend = gsl_ts_early_suspend;
1236 tp_register_fb(&ts->tp);
1237
1238 #ifdef CONFIG_HAS_EARLYSUSPEND
1239 ts->early_suspend.level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN + 1;
1240 ts->early_suspend.suspend = gsl_ts_early_suspend;
1241 ts->early_suspend.resume = gsl_ts_late_resume;
1242 register_early_suspend(&ts->early_suspend);
1243 #endif
1244
1245 #ifdef GSL_MONITOR
1246 pr_info("gsl_ts_probe () : queue gsl_monitor_workqueue\n");
1247
1248 INIT_DELAYED_WORK(&gsl_monitor_work, gsl_monitor_worker);
1249 gsl_monitor_workqueue = create_singlethread_workqueue("gsl_monitor_workqueue");
1250 queue_delayed_work(gsl_monitor_workqueue, &gsl_monitor_work, 1000);
1251 #endif
1252
1253 #ifdef TPD_PROC_DEBUG
1254 proc_create(GSL_CONFIG_PROC_FILE, 0644, NULL, &gsl_seq_fops);
1255 gsl_proc_flag = 0;
1256 #endif
1257
1258 pr_info("[GSLX680] End %s\n", __func__);
1259
1260 return 0;
1261
1262 error_req_irq_fail:
1263
1264 error_mutex_destroy:
1265 return rc;
1266 }
1267
gsl_ts_remove(struct i2c_client * client)1268 static int gsl_ts_remove(struct i2c_client *client)
1269 {
1270 struct gsl_ts *ts = i2c_get_clientdata(client);
1271
1272 pr_info("==gsl_ts_remove=\n");
1273
1274 #ifdef CONFIG_HAS_EARLYSUSPEND
1275 unregister_early_suspend(&ts->early_suspend);
1276 #endif
1277
1278 #ifdef GSL_MONITOR
1279 cancel_delayed_work_sync(&gsl_monitor_work);
1280 destroy_workqueue(gsl_monitor_workqueue);
1281 #endif
1282
1283 device_init_wakeup(&client->dev, 0);
1284 cancel_work_sync(&ts->work);
1285 destroy_workqueue(ts->wq);
1286
1287
1288 return 0;
1289 }
1290
1291 static const struct i2c_device_id gsl_ts_id[] = {
1292 {GSLX680_I2C_NAME, 0},
1293 {}
1294 };
1295 MODULE_DEVICE_TABLE(i2c, gsl_ts_id);
1296
1297 #ifdef CONFIG_OF
1298 static const struct of_device_id gslx680a_of_match[] = {
1299 {.compatible = "gsl,gslx680a"},
1300 {}
1301 };
1302 MODULE_DEVICE_TABLE(of, gslx680a_of_match);
1303 #endif
1304
1305 static struct i2c_driver gsl_ts_driver = {
1306 .driver = {
1307 .of_match_table = of_match_ptr(gslx680a_of_match),
1308 .name = GSLX680_I2C_NAME,
1309 },
1310 .probe = gsl_ts_probe,
1311 .remove = gsl_ts_remove,
1312 .id_table = gsl_ts_id,
1313 };
1314
1315 module_i2c_driver(gsl_ts_driver);
1316
1317 MODULE_LICENSE("GPL");
1318 MODULE_DESCRIPTION("GSLX680 touchscreen controller driver");
1319 MODULE_AUTHOR("Guan Yuwei, guanyuwei@basewin.com");
1320 MODULE_ALIAS("platform:gsl_ts");
1321