Commit | Line | Data |
---|---|---|
4cf51c38 | 1 | /* |
7686b108 | 2 | * Atmel maXTouch Touchscreen driver |
4cf51c38 JS |
3 | * |
4 | * Copyright (C) 2010 Samsung Electronics Co.Ltd | |
5 | * Author: Joonyoung Shim <jy0922.shim@samsung.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | */ | |
13 | ||
14 | #include <linux/module.h> | |
15 | #include <linux/init.h> | |
16 | #include <linux/delay.h> | |
17 | #include <linux/firmware.h> | |
18 | #include <linux/i2c.h> | |
964de521 | 19 | #include <linux/i2c/atmel_mxt_ts.h> |
8b86c1c2 | 20 | #include <linux/input/mt.h> |
4cf51c38 JS |
21 | #include <linux/interrupt.h> |
22 | #include <linux/slab.h> | |
23 | ||
24 | /* Version */ | |
7686b108 IV |
25 | #define MXT_VER_20 20 |
26 | #define MXT_VER_21 21 | |
27 | #define MXT_VER_22 22 | |
4cf51c38 JS |
28 | |
29 | /* Slave addresses */ | |
7686b108 IV |
30 | #define MXT_APP_LOW 0x4a |
31 | #define MXT_APP_HIGH 0x4b | |
32 | #define MXT_BOOT_LOW 0x24 | |
33 | #define MXT_BOOT_HIGH 0x25 | |
4cf51c38 JS |
34 | |
35 | /* Firmware */ | |
7686b108 | 36 | #define MXT_FW_NAME "maxtouch.fw" |
4cf51c38 JS |
37 | |
38 | /* Registers */ | |
7686b108 IV |
39 | #define MXT_FAMILY_ID 0x00 |
40 | #define MXT_VARIANT_ID 0x01 | |
41 | #define MXT_VERSION 0x02 | |
42 | #define MXT_BUILD 0x03 | |
43 | #define MXT_MATRIX_X_SIZE 0x04 | |
44 | #define MXT_MATRIX_Y_SIZE 0x05 | |
45 | #define MXT_OBJECT_NUM 0x06 | |
46 | #define MXT_OBJECT_START 0x07 | |
4cf51c38 | 47 | |
7686b108 | 48 | #define MXT_OBJECT_SIZE 6 |
4cf51c38 JS |
49 | |
50 | /* Object types */ | |
81c88a71 IV |
51 | #define MXT_DEBUG_DIAGNOSTIC_T37 37 |
52 | #define MXT_GEN_MESSAGE_T5 5 | |
53 | #define MXT_GEN_COMMAND_T6 6 | |
54 | #define MXT_GEN_POWER_T7 7 | |
55 | #define MXT_GEN_ACQUIRE_T8 8 | |
56 | #define MXT_GEN_DATASOURCE_T53 53 | |
57 | #define MXT_TOUCH_MULTI_T9 9 | |
58 | #define MXT_TOUCH_KEYARRAY_T15 15 | |
59 | #define MXT_TOUCH_PROXIMITY_T23 23 | |
60 | #define MXT_TOUCH_PROXKEY_T52 52 | |
61 | #define MXT_PROCI_GRIPFACE_T20 20 | |
62 | #define MXT_PROCG_NOISE_T22 22 | |
63 | #define MXT_PROCI_ONETOUCH_T24 24 | |
64 | #define MXT_PROCI_TWOTOUCH_T27 27 | |
65 | #define MXT_PROCI_GRIP_T40 40 | |
66 | #define MXT_PROCI_PALM_T41 41 | |
67 | #define MXT_PROCI_TOUCHSUPPRESSION_T42 42 | |
68 | #define MXT_PROCI_STYLUS_T47 47 | |
69 | #define MXT_PROCG_NOISESUPPRESSION_T48 48 | |
70 | #define MXT_SPT_COMMSCONFIG_T18 18 | |
71 | #define MXT_SPT_GPIOPWM_T19 19 | |
72 | #define MXT_SPT_SELFTEST_T25 25 | |
73 | #define MXT_SPT_CTECONFIG_T28 28 | |
74 | #define MXT_SPT_USERDATA_T38 38 | |
75 | #define MXT_SPT_DIGITIZER_T43 43 | |
76 | #define MXT_SPT_MESSAGECOUNT_T44 44 | |
77 | #define MXT_SPT_CTECONFIG_T46 46 | |
78 | ||
79 | /* MXT_GEN_COMMAND_T6 field */ | |
7686b108 IV |
80 | #define MXT_COMMAND_RESET 0 |
81 | #define MXT_COMMAND_BACKUPNV 1 | |
82 | #define MXT_COMMAND_CALIBRATE 2 | |
83 | #define MXT_COMMAND_REPORTALL 3 | |
84 | #define MXT_COMMAND_DIAGNOSTIC 5 | |
85 | ||
81c88a71 | 86 | /* MXT_GEN_POWER_T7 field */ |
7686b108 IV |
87 | #define MXT_POWER_IDLEACQINT 0 |
88 | #define MXT_POWER_ACTVACQINT 1 | |
89 | #define MXT_POWER_ACTV2IDLETO 2 | |
90 | ||
81c88a71 | 91 | /* MXT_GEN_ACQUIRE_T8 field */ |
7686b108 IV |
92 | #define MXT_ACQUIRE_CHRGTIME 0 |
93 | #define MXT_ACQUIRE_TCHDRIFT 2 | |
94 | #define MXT_ACQUIRE_DRIFTST 3 | |
95 | #define MXT_ACQUIRE_TCHAUTOCAL 4 | |
96 | #define MXT_ACQUIRE_SYNC 5 | |
97 | #define MXT_ACQUIRE_ATCHCALST 6 | |
98 | #define MXT_ACQUIRE_ATCHCALSTHR 7 | |
99 | ||
81c88a71 | 100 | /* MXT_TOUCH_MULTI_T9 field */ |
7686b108 IV |
101 | #define MXT_TOUCH_CTRL 0 |
102 | #define MXT_TOUCH_XORIGIN 1 | |
103 | #define MXT_TOUCH_YORIGIN 2 | |
104 | #define MXT_TOUCH_XSIZE 3 | |
105 | #define MXT_TOUCH_YSIZE 4 | |
106 | #define MXT_TOUCH_BLEN 6 | |
107 | #define MXT_TOUCH_TCHTHR 7 | |
108 | #define MXT_TOUCH_TCHDI 8 | |
109 | #define MXT_TOUCH_ORIENT 9 | |
110 | #define MXT_TOUCH_MOVHYSTI 11 | |
111 | #define MXT_TOUCH_MOVHYSTN 12 | |
112 | #define MXT_TOUCH_NUMTOUCH 14 | |
113 | #define MXT_TOUCH_MRGHYST 15 | |
114 | #define MXT_TOUCH_MRGTHR 16 | |
115 | #define MXT_TOUCH_AMPHYST 17 | |
116 | #define MXT_TOUCH_XRANGE_LSB 18 | |
117 | #define MXT_TOUCH_XRANGE_MSB 19 | |
118 | #define MXT_TOUCH_YRANGE_LSB 20 | |
119 | #define MXT_TOUCH_YRANGE_MSB 21 | |
120 | #define MXT_TOUCH_XLOCLIP 22 | |
121 | #define MXT_TOUCH_XHICLIP 23 | |
122 | #define MXT_TOUCH_YLOCLIP 24 | |
123 | #define MXT_TOUCH_YHICLIP 25 | |
124 | #define MXT_TOUCH_XEDGECTRL 26 | |
125 | #define MXT_TOUCH_XEDGEDIST 27 | |
126 | #define MXT_TOUCH_YEDGECTRL 28 | |
127 | #define MXT_TOUCH_YEDGEDIST 29 | |
979a72da | 128 | #define MXT_TOUCH_JUMPLIMIT 30 |
7686b108 | 129 | |
81c88a71 | 130 | /* MXT_PROCI_GRIPFACE_T20 field */ |
7686b108 IV |
131 | #define MXT_GRIPFACE_CTRL 0 |
132 | #define MXT_GRIPFACE_XLOGRIP 1 | |
133 | #define MXT_GRIPFACE_XHIGRIP 2 | |
134 | #define MXT_GRIPFACE_YLOGRIP 3 | |
135 | #define MXT_GRIPFACE_YHIGRIP 4 | |
136 | #define MXT_GRIPFACE_MAXTCHS 5 | |
137 | #define MXT_GRIPFACE_SZTHR1 7 | |
138 | #define MXT_GRIPFACE_SZTHR2 8 | |
139 | #define MXT_GRIPFACE_SHPTHR1 9 | |
140 | #define MXT_GRIPFACE_SHPTHR2 10 | |
141 | #define MXT_GRIPFACE_SUPEXTTO 11 | |
142 | ||
143 | /* MXT_PROCI_NOISE field */ | |
144 | #define MXT_NOISE_CTRL 0 | |
145 | #define MXT_NOISE_OUTFLEN 1 | |
146 | #define MXT_NOISE_GCAFUL_LSB 3 | |
147 | #define MXT_NOISE_GCAFUL_MSB 4 | |
148 | #define MXT_NOISE_GCAFLL_LSB 5 | |
149 | #define MXT_NOISE_GCAFLL_MSB 6 | |
150 | #define MXT_NOISE_ACTVGCAFVALID 7 | |
151 | #define MXT_NOISE_NOISETHR 8 | |
152 | #define MXT_NOISE_FREQHOPSCALE 10 | |
153 | #define MXT_NOISE_FREQ0 11 | |
154 | #define MXT_NOISE_FREQ1 12 | |
155 | #define MXT_NOISE_FREQ2 13 | |
156 | #define MXT_NOISE_FREQ3 14 | |
157 | #define MXT_NOISE_FREQ4 15 | |
158 | #define MXT_NOISE_IDLEGCAFVALID 16 | |
159 | ||
81c88a71 | 160 | /* MXT_SPT_COMMSCONFIG_T18 */ |
7686b108 IV |
161 | #define MXT_COMMS_CTRL 0 |
162 | #define MXT_COMMS_CMD 1 | |
163 | ||
81c88a71 | 164 | /* MXT_SPT_CTECONFIG_T28 field */ |
7686b108 IV |
165 | #define MXT_CTE_CTRL 0 |
166 | #define MXT_CTE_CMD 1 | |
167 | #define MXT_CTE_MODE 2 | |
168 | #define MXT_CTE_IDLEGCAFDEPTH 3 | |
169 | #define MXT_CTE_ACTVGCAFDEPTH 4 | |
979a72da | 170 | #define MXT_CTE_VOLTAGE 5 |
7686b108 IV |
171 | |
172 | #define MXT_VOLTAGE_DEFAULT 2700000 | |
173 | #define MXT_VOLTAGE_STEP 10000 | |
174 | ||
81c88a71 | 175 | /* Define for MXT_GEN_COMMAND_T6 */ |
7686b108 IV |
176 | #define MXT_BOOT_VALUE 0xa5 |
177 | #define MXT_BACKUP_VALUE 0x55 | |
178 | #define MXT_BACKUP_TIME 25 /* msec */ | |
179 | #define MXT_RESET_TIME 65 /* msec */ | |
180 | ||
181 | #define MXT_FWRESET_TIME 175 /* msec */ | |
4cf51c38 JS |
182 | |
183 | /* Command to unlock bootloader */ | |
7686b108 IV |
184 | #define MXT_UNLOCK_CMD_MSB 0xaa |
185 | #define MXT_UNLOCK_CMD_LSB 0xdc | |
4cf51c38 JS |
186 | |
187 | /* Bootloader mode status */ | |
7686b108 IV |
188 | #define MXT_WAITING_BOOTLOAD_CMD 0xc0 /* valid 7 6 bit only */ |
189 | #define MXT_WAITING_FRAME_DATA 0x80 /* valid 7 6 bit only */ | |
190 | #define MXT_FRAME_CRC_CHECK 0x02 | |
191 | #define MXT_FRAME_CRC_FAIL 0x03 | |
192 | #define MXT_FRAME_CRC_PASS 0x04 | |
193 | #define MXT_APP_CRC_FAIL 0x40 /* valid 7 8 bit only */ | |
194 | #define MXT_BOOT_STATUS_MASK 0x3f | |
4cf51c38 JS |
195 | |
196 | /* Touch status */ | |
7686b108 IV |
197 | #define MXT_SUPPRESS (1 << 1) |
198 | #define MXT_AMP (1 << 2) | |
199 | #define MXT_VECTOR (1 << 3) | |
200 | #define MXT_MOVE (1 << 4) | |
201 | #define MXT_RELEASE (1 << 5) | |
202 | #define MXT_PRESS (1 << 6) | |
203 | #define MXT_DETECT (1 << 7) | |
4cf51c38 | 204 | |
910d8051 JS |
205 | /* Touch orient bits */ |
206 | #define MXT_XY_SWITCH (1 << 0) | |
207 | #define MXT_X_INVERT (1 << 1) | |
208 | #define MXT_Y_INVERT (1 << 2) | |
209 | ||
4cf51c38 | 210 | /* Touchscreen absolute values */ |
7686b108 | 211 | #define MXT_MAX_AREA 0xff |
4cf51c38 | 212 | |
7686b108 | 213 | #define MXT_MAX_FINGER 10 |
4cf51c38 | 214 | |
7686b108 | 215 | struct mxt_info { |
4cf51c38 JS |
216 | u8 family_id; |
217 | u8 variant_id; | |
218 | u8 version; | |
219 | u8 build; | |
220 | u8 matrix_xsize; | |
221 | u8 matrix_ysize; | |
222 | u8 object_num; | |
223 | }; | |
224 | ||
7686b108 | 225 | struct mxt_object { |
4cf51c38 JS |
226 | u8 type; |
227 | u16 start_address; | |
228 | u8 size; | |
229 | u8 instances; | |
230 | u8 num_report_ids; | |
231 | ||
232 | /* to map object and message */ | |
233 | u8 max_reportid; | |
234 | }; | |
235 | ||
7686b108 | 236 | struct mxt_message { |
4cf51c38 JS |
237 | u8 reportid; |
238 | u8 message[7]; | |
4cf51c38 JS |
239 | }; |
240 | ||
7686b108 | 241 | struct mxt_finger { |
4cf51c38 JS |
242 | int status; |
243 | int x; | |
244 | int y; | |
245 | int area; | |
28ac2933 | 246 | int pressure; |
4cf51c38 JS |
247 | }; |
248 | ||
249 | /* Each client has this additional data */ | |
7686b108 | 250 | struct mxt_data { |
4cf51c38 JS |
251 | struct i2c_client *client; |
252 | struct input_dev *input_dev; | |
7686b108 IV |
253 | const struct mxt_platform_data *pdata; |
254 | struct mxt_object *object_table; | |
255 | struct mxt_info info; | |
256 | struct mxt_finger finger[MXT_MAX_FINGER]; | |
4cf51c38 | 257 | unsigned int irq; |
910d8051 JS |
258 | unsigned int max_x; |
259 | unsigned int max_y; | |
4cf51c38 JS |
260 | }; |
261 | ||
7686b108 | 262 | static bool mxt_object_readable(unsigned int type) |
4cf51c38 JS |
263 | { |
264 | switch (type) { | |
81c88a71 IV |
265 | case MXT_GEN_MESSAGE_T5: |
266 | case MXT_GEN_COMMAND_T6: | |
267 | case MXT_GEN_POWER_T7: | |
268 | case MXT_GEN_ACQUIRE_T8: | |
269 | case MXT_GEN_DATASOURCE_T53: | |
270 | case MXT_TOUCH_MULTI_T9: | |
271 | case MXT_TOUCH_KEYARRAY_T15: | |
272 | case MXT_TOUCH_PROXIMITY_T23: | |
273 | case MXT_TOUCH_PROXKEY_T52: | |
274 | case MXT_PROCI_GRIPFACE_T20: | |
275 | case MXT_PROCG_NOISE_T22: | |
276 | case MXT_PROCI_ONETOUCH_T24: | |
277 | case MXT_PROCI_TWOTOUCH_T27: | |
278 | case MXT_PROCI_GRIP_T40: | |
279 | case MXT_PROCI_PALM_T41: | |
280 | case MXT_PROCI_TOUCHSUPPRESSION_T42: | |
281 | case MXT_PROCI_STYLUS_T47: | |
282 | case MXT_PROCG_NOISESUPPRESSION_T48: | |
283 | case MXT_SPT_COMMSCONFIG_T18: | |
284 | case MXT_SPT_GPIOPWM_T19: | |
285 | case MXT_SPT_SELFTEST_T25: | |
286 | case MXT_SPT_CTECONFIG_T28: | |
287 | case MXT_SPT_USERDATA_T38: | |
288 | case MXT_SPT_DIGITIZER_T43: | |
289 | case MXT_SPT_CTECONFIG_T46: | |
4cf51c38 JS |
290 | return true; |
291 | default: | |
292 | return false; | |
293 | } | |
294 | } | |
295 | ||
7686b108 | 296 | static bool mxt_object_writable(unsigned int type) |
4cf51c38 JS |
297 | { |
298 | switch (type) { | |
81c88a71 IV |
299 | case MXT_GEN_COMMAND_T6: |
300 | case MXT_GEN_POWER_T7: | |
301 | case MXT_GEN_ACQUIRE_T8: | |
302 | case MXT_TOUCH_MULTI_T9: | |
303 | case MXT_TOUCH_KEYARRAY_T15: | |
304 | case MXT_TOUCH_PROXIMITY_T23: | |
305 | case MXT_TOUCH_PROXKEY_T52: | |
306 | case MXT_PROCI_GRIPFACE_T20: | |
307 | case MXT_PROCG_NOISE_T22: | |
308 | case MXT_PROCI_ONETOUCH_T24: | |
309 | case MXT_PROCI_TWOTOUCH_T27: | |
310 | case MXT_PROCI_GRIP_T40: | |
311 | case MXT_PROCI_PALM_T41: | |
312 | case MXT_PROCI_TOUCHSUPPRESSION_T42: | |
313 | case MXT_PROCI_STYLUS_T47: | |
314 | case MXT_PROCG_NOISESUPPRESSION_T48: | |
315 | case MXT_SPT_COMMSCONFIG_T18: | |
316 | case MXT_SPT_GPIOPWM_T19: | |
317 | case MXT_SPT_SELFTEST_T25: | |
318 | case MXT_SPT_CTECONFIG_T28: | |
319 | case MXT_SPT_DIGITIZER_T43: | |
320 | case MXT_SPT_CTECONFIG_T46: | |
4cf51c38 JS |
321 | return true; |
322 | default: | |
323 | return false; | |
324 | } | |
325 | } | |
326 | ||
7686b108 | 327 | static void mxt_dump_message(struct device *dev, |
6ee3dbf9 | 328 | struct mxt_message *message) |
4cf51c38 | 329 | { |
6ee3dbf9 DK |
330 | dev_dbg(dev, "reportid: %u\tmessage: %02x %02x %02x %02x %02x %02x %02x\n", |
331 | message->reportid, message->message[0], message->message[1], | |
332 | message->message[2], message->message[3], message->message[4], | |
333 | message->message[5], message->message[6]); | |
4cf51c38 JS |
334 | } |
335 | ||
7686b108 | 336 | static int mxt_check_bootloader(struct i2c_client *client, |
4cf51c38 JS |
337 | unsigned int state) |
338 | { | |
339 | u8 val; | |
340 | ||
341 | recheck: | |
342 | if (i2c_master_recv(client, &val, 1) != 1) { | |
343 | dev_err(&client->dev, "%s: i2c recv failed\n", __func__); | |
344 | return -EIO; | |
345 | } | |
346 | ||
347 | switch (state) { | |
7686b108 IV |
348 | case MXT_WAITING_BOOTLOAD_CMD: |
349 | case MXT_WAITING_FRAME_DATA: | |
350 | val &= ~MXT_BOOT_STATUS_MASK; | |
4cf51c38 | 351 | break; |
7686b108 IV |
352 | case MXT_FRAME_CRC_PASS: |
353 | if (val == MXT_FRAME_CRC_CHECK) | |
4cf51c38 JS |
354 | goto recheck; |
355 | break; | |
356 | default: | |
357 | return -EINVAL; | |
358 | } | |
359 | ||
360 | if (val != state) { | |
361 | dev_err(&client->dev, "Unvalid bootloader mode state\n"); | |
362 | return -EINVAL; | |
363 | } | |
364 | ||
365 | return 0; | |
366 | } | |
367 | ||
7686b108 | 368 | static int mxt_unlock_bootloader(struct i2c_client *client) |
4cf51c38 JS |
369 | { |
370 | u8 buf[2]; | |
371 | ||
7686b108 IV |
372 | buf[0] = MXT_UNLOCK_CMD_LSB; |
373 | buf[1] = MXT_UNLOCK_CMD_MSB; | |
4cf51c38 JS |
374 | |
375 | if (i2c_master_send(client, buf, 2) != 2) { | |
376 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
377 | return -EIO; | |
378 | } | |
379 | ||
380 | return 0; | |
381 | } | |
382 | ||
7686b108 | 383 | static int mxt_fw_write(struct i2c_client *client, |
4cf51c38 JS |
384 | const u8 *data, unsigned int frame_size) |
385 | { | |
386 | if (i2c_master_send(client, data, frame_size) != frame_size) { | |
387 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
388 | return -EIO; | |
389 | } | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
7686b108 | 394 | static int __mxt_read_reg(struct i2c_client *client, |
4cf51c38 JS |
395 | u16 reg, u16 len, void *val) |
396 | { | |
397 | struct i2c_msg xfer[2]; | |
398 | u8 buf[2]; | |
399 | ||
400 | buf[0] = reg & 0xff; | |
401 | buf[1] = (reg >> 8) & 0xff; | |
402 | ||
403 | /* Write register */ | |
404 | xfer[0].addr = client->addr; | |
405 | xfer[0].flags = 0; | |
406 | xfer[0].len = 2; | |
407 | xfer[0].buf = buf; | |
408 | ||
409 | /* Read data */ | |
410 | xfer[1].addr = client->addr; | |
411 | xfer[1].flags = I2C_M_RD; | |
412 | xfer[1].len = len; | |
413 | xfer[1].buf = val; | |
414 | ||
415 | if (i2c_transfer(client->adapter, xfer, 2) != 2) { | |
416 | dev_err(&client->dev, "%s: i2c transfer failed\n", __func__); | |
417 | return -EIO; | |
418 | } | |
419 | ||
420 | return 0; | |
421 | } | |
422 | ||
7686b108 | 423 | static int mxt_read_reg(struct i2c_client *client, u16 reg, u8 *val) |
4cf51c38 | 424 | { |
7686b108 | 425 | return __mxt_read_reg(client, reg, 1, val); |
4cf51c38 JS |
426 | } |
427 | ||
7686b108 | 428 | static int mxt_write_reg(struct i2c_client *client, u16 reg, u8 val) |
4cf51c38 JS |
429 | { |
430 | u8 buf[3]; | |
431 | ||
432 | buf[0] = reg & 0xff; | |
433 | buf[1] = (reg >> 8) & 0xff; | |
434 | buf[2] = val; | |
435 | ||
436 | if (i2c_master_send(client, buf, 3) != 3) { | |
437 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
438 | return -EIO; | |
439 | } | |
440 | ||
441 | return 0; | |
442 | } | |
443 | ||
7686b108 | 444 | static int mxt_read_object_table(struct i2c_client *client, |
4cf51c38 JS |
445 | u16 reg, u8 *object_buf) |
446 | { | |
7686b108 | 447 | return __mxt_read_reg(client, reg, MXT_OBJECT_SIZE, |
4cf51c38 JS |
448 | object_buf); |
449 | } | |
450 | ||
7686b108 IV |
451 | static struct mxt_object * |
452 | mxt_get_object(struct mxt_data *data, u8 type) | |
4cf51c38 | 453 | { |
7686b108 | 454 | struct mxt_object *object; |
4cf51c38 JS |
455 | int i; |
456 | ||
457 | for (i = 0; i < data->info.object_num; i++) { | |
458 | object = data->object_table + i; | |
459 | if (object->type == type) | |
460 | return object; | |
461 | } | |
462 | ||
463 | dev_err(&data->client->dev, "Invalid object type\n"); | |
464 | return NULL; | |
465 | } | |
466 | ||
7686b108 IV |
467 | static int mxt_read_message(struct mxt_data *data, |
468 | struct mxt_message *message) | |
4cf51c38 | 469 | { |
7686b108 | 470 | struct mxt_object *object; |
4cf51c38 JS |
471 | u16 reg; |
472 | ||
81c88a71 | 473 | object = mxt_get_object(data, MXT_GEN_MESSAGE_T5); |
4cf51c38 JS |
474 | if (!object) |
475 | return -EINVAL; | |
476 | ||
477 | reg = object->start_address; | |
7686b108 IV |
478 | return __mxt_read_reg(data->client, reg, |
479 | sizeof(struct mxt_message), message); | |
4cf51c38 JS |
480 | } |
481 | ||
7686b108 | 482 | static int mxt_read_object(struct mxt_data *data, |
4cf51c38 JS |
483 | u8 type, u8 offset, u8 *val) |
484 | { | |
7686b108 | 485 | struct mxt_object *object; |
4cf51c38 JS |
486 | u16 reg; |
487 | ||
7686b108 | 488 | object = mxt_get_object(data, type); |
4cf51c38 JS |
489 | if (!object) |
490 | return -EINVAL; | |
491 | ||
492 | reg = object->start_address; | |
7686b108 | 493 | return __mxt_read_reg(data->client, reg + offset, 1, val); |
4cf51c38 JS |
494 | } |
495 | ||
7686b108 | 496 | static int mxt_write_object(struct mxt_data *data, |
4cf51c38 JS |
497 | u8 type, u8 offset, u8 val) |
498 | { | |
7686b108 | 499 | struct mxt_object *object; |
4cf51c38 JS |
500 | u16 reg; |
501 | ||
7686b108 | 502 | object = mxt_get_object(data, type); |
d1ff320f | 503 | if (!object || offset >= object->size + 1) |
4cf51c38 JS |
504 | return -EINVAL; |
505 | ||
506 | reg = object->start_address; | |
7686b108 | 507 | return mxt_write_reg(data->client, reg + offset, val); |
4cf51c38 JS |
508 | } |
509 | ||
7686b108 | 510 | static void mxt_input_report(struct mxt_data *data, int single_id) |
4cf51c38 | 511 | { |
7686b108 | 512 | struct mxt_finger *finger = data->finger; |
4cf51c38 JS |
513 | struct input_dev *input_dev = data->input_dev; |
514 | int status = finger[single_id].status; | |
515 | int finger_num = 0; | |
516 | int id; | |
517 | ||
7686b108 | 518 | for (id = 0; id < MXT_MAX_FINGER; id++) { |
4cf51c38 JS |
519 | if (!finger[id].status) |
520 | continue; | |
521 | ||
8b86c1c2 JS |
522 | input_mt_slot(input_dev, id); |
523 | input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, | |
524 | finger[id].status != MXT_RELEASE); | |
4cf51c38 | 525 | |
8b86c1c2 | 526 | if (finger[id].status != MXT_RELEASE) { |
4cf51c38 | 527 | finger_num++; |
8b86c1c2 JS |
528 | input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, |
529 | finger[id].area); | |
530 | input_report_abs(input_dev, ABS_MT_POSITION_X, | |
531 | finger[id].x); | |
532 | input_report_abs(input_dev, ABS_MT_POSITION_Y, | |
533 | finger[id].y); | |
28ac2933 YS |
534 | input_report_abs(input_dev, ABS_MT_PRESSURE, |
535 | finger[id].pressure); | |
8b86c1c2 JS |
536 | } else { |
537 | finger[id].status = 0; | |
538 | } | |
4cf51c38 JS |
539 | } |
540 | ||
541 | input_report_key(input_dev, BTN_TOUCH, finger_num > 0); | |
542 | ||
7686b108 | 543 | if (status != MXT_RELEASE) { |
4cf51c38 JS |
544 | input_report_abs(input_dev, ABS_X, finger[single_id].x); |
545 | input_report_abs(input_dev, ABS_Y, finger[single_id].y); | |
28ac2933 YS |
546 | input_report_abs(input_dev, |
547 | ABS_PRESSURE, finger[single_id].pressure); | |
4cf51c38 JS |
548 | } |
549 | ||
550 | input_sync(input_dev); | |
551 | } | |
552 | ||
7686b108 IV |
553 | static void mxt_input_touchevent(struct mxt_data *data, |
554 | struct mxt_message *message, int id) | |
4cf51c38 | 555 | { |
7686b108 | 556 | struct mxt_finger *finger = data->finger; |
4cf51c38 JS |
557 | struct device *dev = &data->client->dev; |
558 | u8 status = message->message[0]; | |
559 | int x; | |
560 | int y; | |
561 | int area; | |
28ac2933 | 562 | int pressure; |
4cf51c38 JS |
563 | |
564 | /* Check the touch is present on the screen */ | |
7686b108 IV |
565 | if (!(status & MXT_DETECT)) { |
566 | if (status & MXT_RELEASE) { | |
4cf51c38 JS |
567 | dev_dbg(dev, "[%d] released\n", id); |
568 | ||
7686b108 IV |
569 | finger[id].status = MXT_RELEASE; |
570 | mxt_input_report(data, id); | |
4cf51c38 JS |
571 | } |
572 | return; | |
573 | } | |
574 | ||
575 | /* Check only AMP detection */ | |
7686b108 | 576 | if (!(status & (MXT_PRESS | MXT_MOVE))) |
4cf51c38 JS |
577 | return; |
578 | ||
910d8051 JS |
579 | x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf); |
580 | y = (message->message[2] << 4) | ((message->message[3] & 0xf)); | |
581 | if (data->max_x < 1024) | |
582 | x = x >> 2; | |
583 | if (data->max_y < 1024) | |
584 | y = y >> 2; | |
585 | ||
4cf51c38 | 586 | area = message->message[4]; |
28ac2933 | 587 | pressure = message->message[5]; |
4cf51c38 JS |
588 | |
589 | dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id, | |
7686b108 | 590 | status & MXT_MOVE ? "moved" : "pressed", |
4cf51c38 JS |
591 | x, y, area); |
592 | ||
7686b108 IV |
593 | finger[id].status = status & MXT_MOVE ? |
594 | MXT_MOVE : MXT_PRESS; | |
4cf51c38 JS |
595 | finger[id].x = x; |
596 | finger[id].y = y; | |
597 | finger[id].area = area; | |
28ac2933 | 598 | finger[id].pressure = pressure; |
4cf51c38 | 599 | |
7686b108 | 600 | mxt_input_report(data, id); |
4cf51c38 JS |
601 | } |
602 | ||
7686b108 | 603 | static irqreturn_t mxt_interrupt(int irq, void *dev_id) |
4cf51c38 | 604 | { |
7686b108 IV |
605 | struct mxt_data *data = dev_id; |
606 | struct mxt_message message; | |
607 | struct mxt_object *object; | |
4cf51c38 JS |
608 | struct device *dev = &data->client->dev; |
609 | int id; | |
610 | u8 reportid; | |
611 | u8 max_reportid; | |
612 | u8 min_reportid; | |
613 | ||
614 | do { | |
7686b108 | 615 | if (mxt_read_message(data, &message)) { |
4cf51c38 JS |
616 | dev_err(dev, "Failed to read message\n"); |
617 | goto end; | |
618 | } | |
619 | ||
620 | reportid = message.reportid; | |
621 | ||
81c88a71 IV |
622 | /* whether reportid is thing of MXT_TOUCH_MULTI_T9 */ |
623 | object = mxt_get_object(data, MXT_TOUCH_MULTI_T9); | |
4cf51c38 JS |
624 | if (!object) |
625 | goto end; | |
626 | ||
627 | max_reportid = object->max_reportid; | |
628 | min_reportid = max_reportid - object->num_report_ids + 1; | |
629 | id = reportid - min_reportid; | |
630 | ||
631 | if (reportid >= min_reportid && reportid <= max_reportid) | |
7686b108 | 632 | mxt_input_touchevent(data, &message, id); |
4cf51c38 | 633 | else |
7686b108 | 634 | mxt_dump_message(dev, &message); |
4cf51c38 JS |
635 | } while (reportid != 0xff); |
636 | ||
637 | end: | |
638 | return IRQ_HANDLED; | |
639 | } | |
640 | ||
7686b108 | 641 | static int mxt_check_reg_init(struct mxt_data *data) |
4cf51c38 | 642 | { |
71749f5c | 643 | const struct mxt_platform_data *pdata = data->pdata; |
7686b108 | 644 | struct mxt_object *object; |
4cf51c38 JS |
645 | struct device *dev = &data->client->dev; |
646 | int index = 0; | |
71749f5c | 647 | int i, j, config_offset; |
4cf51c38 | 648 | |
71749f5c IV |
649 | if (!pdata->config) { |
650 | dev_dbg(dev, "No cfg data defined, skipping reg init\n"); | |
651 | return 0; | |
4cf51c38 JS |
652 | } |
653 | ||
654 | for (i = 0; i < data->info.object_num; i++) { | |
655 | object = data->object_table + i; | |
656 | ||
7686b108 | 657 | if (!mxt_object_writable(object->type)) |
4cf51c38 JS |
658 | continue; |
659 | ||
a93d4f2d IV |
660 | for (j = 0; |
661 | j < (object->size + 1) * (object->instances + 1); | |
662 | j++) { | |
71749f5c IV |
663 | config_offset = index + j; |
664 | if (config_offset > pdata->config_length) { | |
665 | dev_err(dev, "Not enough config data!\n"); | |
666 | return -EINVAL; | |
667 | } | |
7686b108 | 668 | mxt_write_object(data, object->type, j, |
71749f5c IV |
669 | pdata->config[config_offset]); |
670 | } | |
a93d4f2d | 671 | index += (object->size + 1) * (object->instances + 1); |
4cf51c38 JS |
672 | } |
673 | ||
674 | return 0; | |
675 | } | |
676 | ||
7686b108 | 677 | static int mxt_make_highchg(struct mxt_data *data) |
4cf51c38 JS |
678 | { |
679 | struct device *dev = &data->client->dev; | |
26cdb1ae | 680 | struct mxt_message message; |
4cf51c38 JS |
681 | int count = 10; |
682 | int error; | |
4cf51c38 JS |
683 | |
684 | /* Read dummy message to make high CHG pin */ | |
685 | do { | |
26cdb1ae | 686 | error = mxt_read_message(data, &message); |
4cf51c38 JS |
687 | if (error) |
688 | return error; | |
26cdb1ae | 689 | } while (message.reportid != 0xff && --count); |
4cf51c38 JS |
690 | |
691 | if (!count) { | |
692 | dev_err(dev, "CHG pin isn't cleared\n"); | |
693 | return -EBUSY; | |
694 | } | |
695 | ||
696 | return 0; | |
697 | } | |
698 | ||
7686b108 | 699 | static void mxt_handle_pdata(struct mxt_data *data) |
4cf51c38 | 700 | { |
7686b108 | 701 | const struct mxt_platform_data *pdata = data->pdata; |
4cf51c38 JS |
702 | u8 voltage; |
703 | ||
704 | /* Set touchscreen lines */ | |
81c88a71 | 705 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_XSIZE, |
4cf51c38 | 706 | pdata->x_line); |
81c88a71 | 707 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_YSIZE, |
4cf51c38 JS |
708 | pdata->y_line); |
709 | ||
710 | /* Set touchscreen orient */ | |
81c88a71 | 711 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_ORIENT, |
4cf51c38 JS |
712 | pdata->orient); |
713 | ||
714 | /* Set touchscreen burst length */ | |
81c88a71 | 715 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 716 | MXT_TOUCH_BLEN, pdata->blen); |
4cf51c38 JS |
717 | |
718 | /* Set touchscreen threshold */ | |
81c88a71 | 719 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 720 | MXT_TOUCH_TCHTHR, pdata->threshold); |
4cf51c38 JS |
721 | |
722 | /* Set touchscreen resolution */ | |
81c88a71 | 723 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 724 | MXT_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff); |
81c88a71 | 725 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 726 | MXT_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8); |
81c88a71 | 727 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 728 | MXT_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff); |
81c88a71 | 729 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 730 | MXT_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8); |
4cf51c38 JS |
731 | |
732 | /* Set touchscreen voltage */ | |
979a72da | 733 | if (pdata->voltage) { |
7686b108 IV |
734 | if (pdata->voltage < MXT_VOLTAGE_DEFAULT) { |
735 | voltage = (MXT_VOLTAGE_DEFAULT - pdata->voltage) / | |
736 | MXT_VOLTAGE_STEP; | |
4cf51c38 JS |
737 | voltage = 0xff - voltage + 1; |
738 | } else | |
7686b108 IV |
739 | voltage = (pdata->voltage - MXT_VOLTAGE_DEFAULT) / |
740 | MXT_VOLTAGE_STEP; | |
4cf51c38 | 741 | |
81c88a71 | 742 | mxt_write_object(data, MXT_SPT_CTECONFIG_T28, |
7686b108 | 743 | MXT_CTE_VOLTAGE, voltage); |
4cf51c38 JS |
744 | } |
745 | } | |
746 | ||
7686b108 | 747 | static int mxt_get_info(struct mxt_data *data) |
4cf51c38 JS |
748 | { |
749 | struct i2c_client *client = data->client; | |
7686b108 | 750 | struct mxt_info *info = &data->info; |
4cf51c38 JS |
751 | int error; |
752 | u8 val; | |
753 | ||
7686b108 | 754 | error = mxt_read_reg(client, MXT_FAMILY_ID, &val); |
4cf51c38 JS |
755 | if (error) |
756 | return error; | |
757 | info->family_id = val; | |
758 | ||
7686b108 | 759 | error = mxt_read_reg(client, MXT_VARIANT_ID, &val); |
4cf51c38 JS |
760 | if (error) |
761 | return error; | |
762 | info->variant_id = val; | |
763 | ||
7686b108 | 764 | error = mxt_read_reg(client, MXT_VERSION, &val); |
4cf51c38 JS |
765 | if (error) |
766 | return error; | |
767 | info->version = val; | |
768 | ||
7686b108 | 769 | error = mxt_read_reg(client, MXT_BUILD, &val); |
4cf51c38 JS |
770 | if (error) |
771 | return error; | |
772 | info->build = val; | |
773 | ||
7686b108 | 774 | error = mxt_read_reg(client, MXT_OBJECT_NUM, &val); |
4cf51c38 JS |
775 | if (error) |
776 | return error; | |
777 | info->object_num = val; | |
778 | ||
779 | return 0; | |
780 | } | |
781 | ||
7686b108 | 782 | static int mxt_get_object_table(struct mxt_data *data) |
4cf51c38 JS |
783 | { |
784 | int error; | |
785 | int i; | |
786 | u16 reg; | |
787 | u8 reportid = 0; | |
7686b108 | 788 | u8 buf[MXT_OBJECT_SIZE]; |
4cf51c38 JS |
789 | |
790 | for (i = 0; i < data->info.object_num; i++) { | |
7686b108 | 791 | struct mxt_object *object = data->object_table + i; |
4cf51c38 | 792 | |
7686b108 IV |
793 | reg = MXT_OBJECT_START + MXT_OBJECT_SIZE * i; |
794 | error = mxt_read_object_table(data->client, reg, buf); | |
4cf51c38 JS |
795 | if (error) |
796 | return error; | |
797 | ||
798 | object->type = buf[0]; | |
799 | object->start_address = (buf[2] << 8) | buf[1]; | |
800 | object->size = buf[3]; | |
801 | object->instances = buf[4]; | |
802 | object->num_report_ids = buf[5]; | |
803 | ||
804 | if (object->num_report_ids) { | |
805 | reportid += object->num_report_ids * | |
806 | (object->instances + 1); | |
807 | object->max_reportid = reportid; | |
808 | } | |
809 | } | |
810 | ||
811 | return 0; | |
812 | } | |
813 | ||
7686b108 | 814 | static int mxt_initialize(struct mxt_data *data) |
4cf51c38 JS |
815 | { |
816 | struct i2c_client *client = data->client; | |
7686b108 | 817 | struct mxt_info *info = &data->info; |
4cf51c38 JS |
818 | int error; |
819 | u8 val; | |
820 | ||
7686b108 | 821 | error = mxt_get_info(data); |
4cf51c38 JS |
822 | if (error) |
823 | return error; | |
824 | ||
825 | data->object_table = kcalloc(info->object_num, | |
7686b108 | 826 | sizeof(struct mxt_object), |
4cf51c38 JS |
827 | GFP_KERNEL); |
828 | if (!data->object_table) { | |
829 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
830 | return -ENOMEM; | |
831 | } | |
832 | ||
833 | /* Get object table information */ | |
7686b108 | 834 | error = mxt_get_object_table(data); |
4cf51c38 JS |
835 | if (error) |
836 | return error; | |
837 | ||
838 | /* Check register init values */ | |
7686b108 | 839 | error = mxt_check_reg_init(data); |
4cf51c38 JS |
840 | if (error) |
841 | return error; | |
842 | ||
7686b108 | 843 | mxt_handle_pdata(data); |
4cf51c38 JS |
844 | |
845 | /* Backup to memory */ | |
81c88a71 | 846 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
847 | MXT_COMMAND_BACKUPNV, |
848 | MXT_BACKUP_VALUE); | |
849 | msleep(MXT_BACKUP_TIME); | |
4cf51c38 JS |
850 | |
851 | /* Soft reset */ | |
81c88a71 | 852 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
853 | MXT_COMMAND_RESET, 1); |
854 | msleep(MXT_RESET_TIME); | |
4cf51c38 JS |
855 | |
856 | /* Update matrix size at info struct */ | |
7686b108 | 857 | error = mxt_read_reg(client, MXT_MATRIX_X_SIZE, &val); |
4cf51c38 JS |
858 | if (error) |
859 | return error; | |
860 | info->matrix_xsize = val; | |
861 | ||
7686b108 | 862 | error = mxt_read_reg(client, MXT_MATRIX_Y_SIZE, &val); |
4cf51c38 JS |
863 | if (error) |
864 | return error; | |
865 | info->matrix_ysize = val; | |
866 | ||
867 | dev_info(&client->dev, | |
868 | "Family ID: %d Variant ID: %d Version: %d Build: %d\n", | |
869 | info->family_id, info->variant_id, info->version, | |
870 | info->build); | |
871 | ||
872 | dev_info(&client->dev, | |
873 | "Matrix X Size: %d Matrix Y Size: %d Object Num: %d\n", | |
874 | info->matrix_xsize, info->matrix_ysize, | |
875 | info->object_num); | |
876 | ||
877 | return 0; | |
878 | } | |
879 | ||
910d8051 JS |
880 | static void mxt_calc_resolution(struct mxt_data *data) |
881 | { | |
882 | unsigned int max_x = data->pdata->x_size - 1; | |
883 | unsigned int max_y = data->pdata->y_size - 1; | |
884 | ||
885 | if (data->pdata->orient & MXT_XY_SWITCH) { | |
886 | data->max_x = max_y; | |
887 | data->max_y = max_x; | |
888 | } else { | |
889 | data->max_x = max_x; | |
890 | data->max_y = max_y; | |
891 | } | |
892 | } | |
893 | ||
7686b108 | 894 | static ssize_t mxt_object_show(struct device *dev, |
4cf51c38 JS |
895 | struct device_attribute *attr, char *buf) |
896 | { | |
7686b108 IV |
897 | struct mxt_data *data = dev_get_drvdata(dev); |
898 | struct mxt_object *object; | |
4cf51c38 JS |
899 | int count = 0; |
900 | int i, j; | |
901 | int error; | |
902 | u8 val; | |
903 | ||
904 | for (i = 0; i < data->info.object_num; i++) { | |
905 | object = data->object_table + i; | |
906 | ||
626af861 DK |
907 | count += snprintf(buf + count, PAGE_SIZE - count, |
908 | "Object[%d] (Type %d)\n", | |
4cf51c38 | 909 | i + 1, object->type); |
626af861 DK |
910 | if (count >= PAGE_SIZE) |
911 | return PAGE_SIZE - 1; | |
4cf51c38 | 912 | |
7686b108 | 913 | if (!mxt_object_readable(object->type)) { |
626af861 DK |
914 | count += snprintf(buf + count, PAGE_SIZE - count, |
915 | "\n"); | |
916 | if (count >= PAGE_SIZE) | |
917 | return PAGE_SIZE - 1; | |
4cf51c38 JS |
918 | continue; |
919 | } | |
920 | ||
921 | for (j = 0; j < object->size + 1; j++) { | |
7686b108 | 922 | error = mxt_read_object(data, |
4cf51c38 JS |
923 | object->type, j, &val); |
924 | if (error) | |
925 | return error; | |
926 | ||
626af861 DK |
927 | count += snprintf(buf + count, PAGE_SIZE - count, |
928 | "\t[%2d]: %02x (%d)\n", j, val, val); | |
929 | if (count >= PAGE_SIZE) | |
930 | return PAGE_SIZE - 1; | |
4cf51c38 JS |
931 | } |
932 | ||
626af861 DK |
933 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); |
934 | if (count >= PAGE_SIZE) | |
935 | return PAGE_SIZE - 1; | |
4cf51c38 JS |
936 | } |
937 | ||
938 | return count; | |
939 | } | |
940 | ||
7686b108 | 941 | static int mxt_load_fw(struct device *dev, const char *fn) |
4cf51c38 | 942 | { |
7686b108 | 943 | struct mxt_data *data = dev_get_drvdata(dev); |
4cf51c38 JS |
944 | struct i2c_client *client = data->client; |
945 | const struct firmware *fw = NULL; | |
946 | unsigned int frame_size; | |
947 | unsigned int pos = 0; | |
948 | int ret; | |
949 | ||
950 | ret = request_firmware(&fw, fn, dev); | |
951 | if (ret) { | |
952 | dev_err(dev, "Unable to open firmware %s\n", fn); | |
953 | return ret; | |
954 | } | |
955 | ||
956 | /* Change to the bootloader mode */ | |
81c88a71 | 957 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
958 | MXT_COMMAND_RESET, MXT_BOOT_VALUE); |
959 | msleep(MXT_RESET_TIME); | |
4cf51c38 JS |
960 | |
961 | /* Change to slave address of bootloader */ | |
7686b108 IV |
962 | if (client->addr == MXT_APP_LOW) |
963 | client->addr = MXT_BOOT_LOW; | |
4cf51c38 | 964 | else |
7686b108 | 965 | client->addr = MXT_BOOT_HIGH; |
4cf51c38 | 966 | |
7686b108 | 967 | ret = mxt_check_bootloader(client, MXT_WAITING_BOOTLOAD_CMD); |
4cf51c38 JS |
968 | if (ret) |
969 | goto out; | |
970 | ||
971 | /* Unlock bootloader */ | |
7686b108 | 972 | mxt_unlock_bootloader(client); |
4cf51c38 JS |
973 | |
974 | while (pos < fw->size) { | |
7686b108 IV |
975 | ret = mxt_check_bootloader(client, |
976 | MXT_WAITING_FRAME_DATA); | |
4cf51c38 JS |
977 | if (ret) |
978 | goto out; | |
979 | ||
980 | frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1)); | |
981 | ||
982 | /* We should add 2 at frame size as the the firmware data is not | |
983 | * included the CRC bytes. | |
984 | */ | |
985 | frame_size += 2; | |
986 | ||
987 | /* Write one frame to device */ | |
7686b108 | 988 | mxt_fw_write(client, fw->data + pos, frame_size); |
4cf51c38 | 989 | |
7686b108 IV |
990 | ret = mxt_check_bootloader(client, |
991 | MXT_FRAME_CRC_PASS); | |
4cf51c38 JS |
992 | if (ret) |
993 | goto out; | |
994 | ||
995 | pos += frame_size; | |
996 | ||
997 | dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size); | |
998 | } | |
999 | ||
1000 | out: | |
1001 | release_firmware(fw); | |
1002 | ||
1003 | /* Change to slave address of application */ | |
7686b108 IV |
1004 | if (client->addr == MXT_BOOT_LOW) |
1005 | client->addr = MXT_APP_LOW; | |
4cf51c38 | 1006 | else |
7686b108 | 1007 | client->addr = MXT_APP_HIGH; |
4cf51c38 JS |
1008 | |
1009 | return ret; | |
1010 | } | |
1011 | ||
7686b108 | 1012 | static ssize_t mxt_update_fw_store(struct device *dev, |
4cf51c38 JS |
1013 | struct device_attribute *attr, |
1014 | const char *buf, size_t count) | |
1015 | { | |
7686b108 | 1016 | struct mxt_data *data = dev_get_drvdata(dev); |
4cf51c38 JS |
1017 | int error; |
1018 | ||
4cf51c38 JS |
1019 | disable_irq(data->irq); |
1020 | ||
7686b108 | 1021 | error = mxt_load_fw(dev, MXT_FW_NAME); |
4cf51c38 JS |
1022 | if (error) { |
1023 | dev_err(dev, "The firmware update failed(%d)\n", error); | |
1024 | count = error; | |
1025 | } else { | |
1026 | dev_dbg(dev, "The firmware update succeeded\n"); | |
1027 | ||
1028 | /* Wait for reset */ | |
7686b108 | 1029 | msleep(MXT_FWRESET_TIME); |
4cf51c38 JS |
1030 | |
1031 | kfree(data->object_table); | |
1032 | data->object_table = NULL; | |
1033 | ||
7686b108 | 1034 | mxt_initialize(data); |
4cf51c38 JS |
1035 | } |
1036 | ||
1037 | enable_irq(data->irq); | |
1038 | ||
08960a07 IV |
1039 | error = mxt_make_highchg(data); |
1040 | if (error) | |
1041 | return error; | |
1042 | ||
4cf51c38 JS |
1043 | return count; |
1044 | } | |
1045 | ||
71b3e938 DK |
1046 | static DEVICE_ATTR(object, S_IRUGO, mxt_object_show, NULL); |
1047 | static DEVICE_ATTR(update_fw, S_IWUSR, NULL, mxt_update_fw_store); | |
4cf51c38 | 1048 | |
7686b108 | 1049 | static struct attribute *mxt_attrs[] = { |
4cf51c38 JS |
1050 | &dev_attr_object.attr, |
1051 | &dev_attr_update_fw.attr, | |
1052 | NULL | |
1053 | }; | |
1054 | ||
7686b108 IV |
1055 | static const struct attribute_group mxt_attr_group = { |
1056 | .attrs = mxt_attrs, | |
4cf51c38 JS |
1057 | }; |
1058 | ||
7686b108 | 1059 | static void mxt_start(struct mxt_data *data) |
4cf51c38 JS |
1060 | { |
1061 | /* Touch enable */ | |
7686b108 | 1062 | mxt_write_object(data, |
81c88a71 | 1063 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0x83); |
4cf51c38 JS |
1064 | } |
1065 | ||
7686b108 | 1066 | static void mxt_stop(struct mxt_data *data) |
4cf51c38 JS |
1067 | { |
1068 | /* Touch disable */ | |
7686b108 | 1069 | mxt_write_object(data, |
81c88a71 | 1070 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0); |
4cf51c38 JS |
1071 | } |
1072 | ||
7686b108 | 1073 | static int mxt_input_open(struct input_dev *dev) |
4cf51c38 | 1074 | { |
7686b108 | 1075 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1076 | |
7686b108 | 1077 | mxt_start(data); |
4cf51c38 JS |
1078 | |
1079 | return 0; | |
1080 | } | |
1081 | ||
7686b108 | 1082 | static void mxt_input_close(struct input_dev *dev) |
4cf51c38 | 1083 | { |
7686b108 | 1084 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1085 | |
7686b108 | 1086 | mxt_stop(data); |
4cf51c38 JS |
1087 | } |
1088 | ||
7686b108 | 1089 | static int __devinit mxt_probe(struct i2c_client *client, |
4cf51c38 JS |
1090 | const struct i2c_device_id *id) |
1091 | { | |
919ed895 | 1092 | const struct mxt_platform_data *pdata = client->dev.platform_data; |
7686b108 | 1093 | struct mxt_data *data; |
4cf51c38 JS |
1094 | struct input_dev *input_dev; |
1095 | int error; | |
1096 | ||
919ed895 | 1097 | if (!pdata) |
4cf51c38 JS |
1098 | return -EINVAL; |
1099 | ||
7686b108 | 1100 | data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL); |
4cf51c38 JS |
1101 | input_dev = input_allocate_device(); |
1102 | if (!data || !input_dev) { | |
1103 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
1104 | error = -ENOMEM; | |
1105 | goto err_free_mem; | |
1106 | } | |
1107 | ||
7686b108 | 1108 | input_dev->name = "Atmel maXTouch Touchscreen"; |
4cf51c38 JS |
1109 | input_dev->id.bustype = BUS_I2C; |
1110 | input_dev->dev.parent = &client->dev; | |
7686b108 IV |
1111 | input_dev->open = mxt_input_open; |
1112 | input_dev->close = mxt_input_close; | |
4cf51c38 | 1113 | |
910d8051 JS |
1114 | data->client = client; |
1115 | data->input_dev = input_dev; | |
1116 | data->pdata = pdata; | |
1117 | data->irq = client->irq; | |
1118 | ||
1119 | mxt_calc_resolution(data); | |
1120 | ||
4cf51c38 JS |
1121 | __set_bit(EV_ABS, input_dev->evbit); |
1122 | __set_bit(EV_KEY, input_dev->evbit); | |
1123 | __set_bit(BTN_TOUCH, input_dev->keybit); | |
1124 | ||
1125 | /* For single touch */ | |
1126 | input_set_abs_params(input_dev, ABS_X, | |
910d8051 | 1127 | 0, data->max_x, 0, 0); |
4cf51c38 | 1128 | input_set_abs_params(input_dev, ABS_Y, |
910d8051 | 1129 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1130 | input_set_abs_params(input_dev, ABS_PRESSURE, |
1131 | 0, 255, 0, 0); | |
4cf51c38 JS |
1132 | |
1133 | /* For multi touch */ | |
8b86c1c2 | 1134 | input_mt_init_slots(input_dev, MXT_MAX_FINGER); |
4cf51c38 | 1135 | input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, |
7686b108 | 1136 | 0, MXT_MAX_AREA, 0, 0); |
4cf51c38 | 1137 | input_set_abs_params(input_dev, ABS_MT_POSITION_X, |
910d8051 | 1138 | 0, data->max_x, 0, 0); |
4cf51c38 | 1139 | input_set_abs_params(input_dev, ABS_MT_POSITION_Y, |
910d8051 | 1140 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1141 | input_set_abs_params(input_dev, ABS_MT_PRESSURE, |
1142 | 0, 255, 0, 0); | |
4cf51c38 JS |
1143 | |
1144 | input_set_drvdata(input_dev, data); | |
4cf51c38 JS |
1145 | i2c_set_clientdata(client, data); |
1146 | ||
7686b108 | 1147 | error = mxt_initialize(data); |
4cf51c38 JS |
1148 | if (error) |
1149 | goto err_free_object; | |
1150 | ||
7686b108 | 1151 | error = request_threaded_irq(client->irq, NULL, mxt_interrupt, |
9b7e31bb LPC |
1152 | pdata->irqflags | IRQF_ONESHOT, |
1153 | client->dev.driver->name, data); | |
4cf51c38 JS |
1154 | if (error) { |
1155 | dev_err(&client->dev, "Failed to register interrupt\n"); | |
1156 | goto err_free_object; | |
1157 | } | |
1158 | ||
08960a07 IV |
1159 | error = mxt_make_highchg(data); |
1160 | if (error) | |
1161 | goto err_free_irq; | |
1162 | ||
4cf51c38 JS |
1163 | error = input_register_device(input_dev); |
1164 | if (error) | |
1165 | goto err_free_irq; | |
1166 | ||
7686b108 | 1167 | error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 JS |
1168 | if (error) |
1169 | goto err_unregister_device; | |
1170 | ||
1171 | return 0; | |
1172 | ||
1173 | err_unregister_device: | |
1174 | input_unregister_device(input_dev); | |
1175 | input_dev = NULL; | |
1176 | err_free_irq: | |
1177 | free_irq(client->irq, data); | |
1178 | err_free_object: | |
1179 | kfree(data->object_table); | |
1180 | err_free_mem: | |
1181 | input_free_device(input_dev); | |
1182 | kfree(data); | |
1183 | return error; | |
1184 | } | |
1185 | ||
7686b108 | 1186 | static int __devexit mxt_remove(struct i2c_client *client) |
4cf51c38 | 1187 | { |
7686b108 | 1188 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 | 1189 | |
7686b108 | 1190 | sysfs_remove_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 JS |
1191 | free_irq(data->irq, data); |
1192 | input_unregister_device(data->input_dev); | |
1193 | kfree(data->object_table); | |
1194 | kfree(data); | |
1195 | ||
1196 | return 0; | |
1197 | } | |
1198 | ||
3a73c816 | 1199 | #ifdef CONFIG_PM_SLEEP |
7686b108 | 1200 | static int mxt_suspend(struct device *dev) |
4cf51c38 | 1201 | { |
8b5fce06 | 1202 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1203 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1204 | struct input_dev *input_dev = data->input_dev; |
1205 | ||
1206 | mutex_lock(&input_dev->mutex); | |
1207 | ||
1208 | if (input_dev->users) | |
7686b108 | 1209 | mxt_stop(data); |
4cf51c38 JS |
1210 | |
1211 | mutex_unlock(&input_dev->mutex); | |
1212 | ||
1213 | return 0; | |
1214 | } | |
1215 | ||
7686b108 | 1216 | static int mxt_resume(struct device *dev) |
4cf51c38 | 1217 | { |
8b5fce06 | 1218 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1219 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1220 | struct input_dev *input_dev = data->input_dev; |
1221 | ||
1222 | /* Soft reset */ | |
81c88a71 | 1223 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 | 1224 | MXT_COMMAND_RESET, 1); |
4cf51c38 | 1225 | |
7686b108 | 1226 | msleep(MXT_RESET_TIME); |
4cf51c38 JS |
1227 | |
1228 | mutex_lock(&input_dev->mutex); | |
1229 | ||
1230 | if (input_dev->users) | |
7686b108 | 1231 | mxt_start(data); |
4cf51c38 JS |
1232 | |
1233 | mutex_unlock(&input_dev->mutex); | |
1234 | ||
1235 | return 0; | |
1236 | } | |
4cf51c38 JS |
1237 | #endif |
1238 | ||
3a73c816 DK |
1239 | static SIMPLE_DEV_PM_OPS(mxt_pm_ops, mxt_suspend, mxt_resume); |
1240 | ||
7686b108 | 1241 | static const struct i2c_device_id mxt_id[] = { |
4cf51c38 | 1242 | { "qt602240_ts", 0 }, |
7686b108 | 1243 | { "atmel_mxt_ts", 0 }, |
46ee2a05 | 1244 | { "mXT224", 0 }, |
4cf51c38 JS |
1245 | { } |
1246 | }; | |
7686b108 | 1247 | MODULE_DEVICE_TABLE(i2c, mxt_id); |
4cf51c38 | 1248 | |
7686b108 | 1249 | static struct i2c_driver mxt_driver = { |
4cf51c38 | 1250 | .driver = { |
7686b108 | 1251 | .name = "atmel_mxt_ts", |
4cf51c38 | 1252 | .owner = THIS_MODULE, |
7686b108 | 1253 | .pm = &mxt_pm_ops, |
4cf51c38 | 1254 | }, |
7686b108 IV |
1255 | .probe = mxt_probe, |
1256 | .remove = __devexit_p(mxt_remove), | |
1257 | .id_table = mxt_id, | |
4cf51c38 JS |
1258 | }; |
1259 | ||
1b92c1cf | 1260 | module_i2c_driver(mxt_driver); |
4cf51c38 JS |
1261 | |
1262 | /* Module information */ | |
1263 | MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); | |
7686b108 | 1264 | MODULE_DESCRIPTION("Atmel maXTouch Touchscreen driver"); |
4cf51c38 | 1265 | MODULE_LICENSE("GPL"); |