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Commit | Line | Data |
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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 */ | |
23003a84 | 39 | #define MXT_INFO 0x00 |
7686b108 IV |
40 | #define MXT_FAMILY_ID 0x00 |
41 | #define MXT_VARIANT_ID 0x01 | |
42 | #define MXT_VERSION 0x02 | |
43 | #define MXT_BUILD 0x03 | |
44 | #define MXT_MATRIX_X_SIZE 0x04 | |
45 | #define MXT_MATRIX_Y_SIZE 0x05 | |
46 | #define MXT_OBJECT_NUM 0x06 | |
47 | #define MXT_OBJECT_START 0x07 | |
4cf51c38 | 48 | |
7686b108 | 49 | #define MXT_OBJECT_SIZE 6 |
4cf51c38 JS |
50 | |
51 | /* Object types */ | |
81c88a71 IV |
52 | #define MXT_DEBUG_DIAGNOSTIC_T37 37 |
53 | #define MXT_GEN_MESSAGE_T5 5 | |
54 | #define MXT_GEN_COMMAND_T6 6 | |
55 | #define MXT_GEN_POWER_T7 7 | |
56 | #define MXT_GEN_ACQUIRE_T8 8 | |
57 | #define MXT_GEN_DATASOURCE_T53 53 | |
58 | #define MXT_TOUCH_MULTI_T9 9 | |
59 | #define MXT_TOUCH_KEYARRAY_T15 15 | |
60 | #define MXT_TOUCH_PROXIMITY_T23 23 | |
61 | #define MXT_TOUCH_PROXKEY_T52 52 | |
62 | #define MXT_PROCI_GRIPFACE_T20 20 | |
63 | #define MXT_PROCG_NOISE_T22 22 | |
64 | #define MXT_PROCI_ONETOUCH_T24 24 | |
65 | #define MXT_PROCI_TWOTOUCH_T27 27 | |
66 | #define MXT_PROCI_GRIP_T40 40 | |
67 | #define MXT_PROCI_PALM_T41 41 | |
68 | #define MXT_PROCI_TOUCHSUPPRESSION_T42 42 | |
69 | #define MXT_PROCI_STYLUS_T47 47 | |
70 | #define MXT_PROCG_NOISESUPPRESSION_T48 48 | |
71 | #define MXT_SPT_COMMSCONFIG_T18 18 | |
72 | #define MXT_SPT_GPIOPWM_T19 19 | |
73 | #define MXT_SPT_SELFTEST_T25 25 | |
74 | #define MXT_SPT_CTECONFIG_T28 28 | |
75 | #define MXT_SPT_USERDATA_T38 38 | |
76 | #define MXT_SPT_DIGITIZER_T43 43 | |
77 | #define MXT_SPT_MESSAGECOUNT_T44 44 | |
78 | #define MXT_SPT_CTECONFIG_T46 46 | |
79 | ||
80 | /* MXT_GEN_COMMAND_T6 field */ | |
7686b108 IV |
81 | #define MXT_COMMAND_RESET 0 |
82 | #define MXT_COMMAND_BACKUPNV 1 | |
83 | #define MXT_COMMAND_CALIBRATE 2 | |
84 | #define MXT_COMMAND_REPORTALL 3 | |
85 | #define MXT_COMMAND_DIAGNOSTIC 5 | |
86 | ||
81c88a71 | 87 | /* MXT_GEN_POWER_T7 field */ |
7686b108 IV |
88 | #define MXT_POWER_IDLEACQINT 0 |
89 | #define MXT_POWER_ACTVACQINT 1 | |
90 | #define MXT_POWER_ACTV2IDLETO 2 | |
91 | ||
81c88a71 | 92 | /* MXT_GEN_ACQUIRE_T8 field */ |
7686b108 IV |
93 | #define MXT_ACQUIRE_CHRGTIME 0 |
94 | #define MXT_ACQUIRE_TCHDRIFT 2 | |
95 | #define MXT_ACQUIRE_DRIFTST 3 | |
96 | #define MXT_ACQUIRE_TCHAUTOCAL 4 | |
97 | #define MXT_ACQUIRE_SYNC 5 | |
98 | #define MXT_ACQUIRE_ATCHCALST 6 | |
99 | #define MXT_ACQUIRE_ATCHCALSTHR 7 | |
100 | ||
81c88a71 | 101 | /* MXT_TOUCH_MULTI_T9 field */ |
7686b108 IV |
102 | #define MXT_TOUCH_CTRL 0 |
103 | #define MXT_TOUCH_XORIGIN 1 | |
104 | #define MXT_TOUCH_YORIGIN 2 | |
105 | #define MXT_TOUCH_XSIZE 3 | |
106 | #define MXT_TOUCH_YSIZE 4 | |
107 | #define MXT_TOUCH_BLEN 6 | |
108 | #define MXT_TOUCH_TCHTHR 7 | |
109 | #define MXT_TOUCH_TCHDI 8 | |
110 | #define MXT_TOUCH_ORIENT 9 | |
111 | #define MXT_TOUCH_MOVHYSTI 11 | |
112 | #define MXT_TOUCH_MOVHYSTN 12 | |
113 | #define MXT_TOUCH_NUMTOUCH 14 | |
114 | #define MXT_TOUCH_MRGHYST 15 | |
115 | #define MXT_TOUCH_MRGTHR 16 | |
116 | #define MXT_TOUCH_AMPHYST 17 | |
117 | #define MXT_TOUCH_XRANGE_LSB 18 | |
118 | #define MXT_TOUCH_XRANGE_MSB 19 | |
119 | #define MXT_TOUCH_YRANGE_LSB 20 | |
120 | #define MXT_TOUCH_YRANGE_MSB 21 | |
121 | #define MXT_TOUCH_XLOCLIP 22 | |
122 | #define MXT_TOUCH_XHICLIP 23 | |
123 | #define MXT_TOUCH_YLOCLIP 24 | |
124 | #define MXT_TOUCH_YHICLIP 25 | |
125 | #define MXT_TOUCH_XEDGECTRL 26 | |
126 | #define MXT_TOUCH_XEDGEDIST 27 | |
127 | #define MXT_TOUCH_YEDGECTRL 28 | |
128 | #define MXT_TOUCH_YEDGEDIST 29 | |
979a72da | 129 | #define MXT_TOUCH_JUMPLIMIT 30 |
7686b108 | 130 | |
81c88a71 | 131 | /* MXT_PROCI_GRIPFACE_T20 field */ |
7686b108 IV |
132 | #define MXT_GRIPFACE_CTRL 0 |
133 | #define MXT_GRIPFACE_XLOGRIP 1 | |
134 | #define MXT_GRIPFACE_XHIGRIP 2 | |
135 | #define MXT_GRIPFACE_YLOGRIP 3 | |
136 | #define MXT_GRIPFACE_YHIGRIP 4 | |
137 | #define MXT_GRIPFACE_MAXTCHS 5 | |
138 | #define MXT_GRIPFACE_SZTHR1 7 | |
139 | #define MXT_GRIPFACE_SZTHR2 8 | |
140 | #define MXT_GRIPFACE_SHPTHR1 9 | |
141 | #define MXT_GRIPFACE_SHPTHR2 10 | |
142 | #define MXT_GRIPFACE_SUPEXTTO 11 | |
143 | ||
144 | /* MXT_PROCI_NOISE field */ | |
145 | #define MXT_NOISE_CTRL 0 | |
146 | #define MXT_NOISE_OUTFLEN 1 | |
147 | #define MXT_NOISE_GCAFUL_LSB 3 | |
148 | #define MXT_NOISE_GCAFUL_MSB 4 | |
149 | #define MXT_NOISE_GCAFLL_LSB 5 | |
150 | #define MXT_NOISE_GCAFLL_MSB 6 | |
151 | #define MXT_NOISE_ACTVGCAFVALID 7 | |
152 | #define MXT_NOISE_NOISETHR 8 | |
153 | #define MXT_NOISE_FREQHOPSCALE 10 | |
154 | #define MXT_NOISE_FREQ0 11 | |
155 | #define MXT_NOISE_FREQ1 12 | |
156 | #define MXT_NOISE_FREQ2 13 | |
157 | #define MXT_NOISE_FREQ3 14 | |
158 | #define MXT_NOISE_FREQ4 15 | |
159 | #define MXT_NOISE_IDLEGCAFVALID 16 | |
160 | ||
81c88a71 | 161 | /* MXT_SPT_COMMSCONFIG_T18 */ |
7686b108 IV |
162 | #define MXT_COMMS_CTRL 0 |
163 | #define MXT_COMMS_CMD 1 | |
164 | ||
81c88a71 | 165 | /* MXT_SPT_CTECONFIG_T28 field */ |
7686b108 IV |
166 | #define MXT_CTE_CTRL 0 |
167 | #define MXT_CTE_CMD 1 | |
168 | #define MXT_CTE_MODE 2 | |
169 | #define MXT_CTE_IDLEGCAFDEPTH 3 | |
170 | #define MXT_CTE_ACTVGCAFDEPTH 4 | |
979a72da | 171 | #define MXT_CTE_VOLTAGE 5 |
7686b108 IV |
172 | |
173 | #define MXT_VOLTAGE_DEFAULT 2700000 | |
174 | #define MXT_VOLTAGE_STEP 10000 | |
175 | ||
81c88a71 | 176 | /* Define for MXT_GEN_COMMAND_T6 */ |
7686b108 IV |
177 | #define MXT_BOOT_VALUE 0xa5 |
178 | #define MXT_BACKUP_VALUE 0x55 | |
179 | #define MXT_BACKUP_TIME 25 /* msec */ | |
180 | #define MXT_RESET_TIME 65 /* msec */ | |
181 | ||
182 | #define MXT_FWRESET_TIME 175 /* msec */ | |
4cf51c38 JS |
183 | |
184 | /* Command to unlock bootloader */ | |
7686b108 IV |
185 | #define MXT_UNLOCK_CMD_MSB 0xaa |
186 | #define MXT_UNLOCK_CMD_LSB 0xdc | |
4cf51c38 JS |
187 | |
188 | /* Bootloader mode status */ | |
7686b108 IV |
189 | #define MXT_WAITING_BOOTLOAD_CMD 0xc0 /* valid 7 6 bit only */ |
190 | #define MXT_WAITING_FRAME_DATA 0x80 /* valid 7 6 bit only */ | |
191 | #define MXT_FRAME_CRC_CHECK 0x02 | |
192 | #define MXT_FRAME_CRC_FAIL 0x03 | |
193 | #define MXT_FRAME_CRC_PASS 0x04 | |
194 | #define MXT_APP_CRC_FAIL 0x40 /* valid 7 8 bit only */ | |
195 | #define MXT_BOOT_STATUS_MASK 0x3f | |
4cf51c38 JS |
196 | |
197 | /* Touch status */ | |
7686b108 IV |
198 | #define MXT_SUPPRESS (1 << 1) |
199 | #define MXT_AMP (1 << 2) | |
200 | #define MXT_VECTOR (1 << 3) | |
201 | #define MXT_MOVE (1 << 4) | |
202 | #define MXT_RELEASE (1 << 5) | |
203 | #define MXT_PRESS (1 << 6) | |
204 | #define MXT_DETECT (1 << 7) | |
4cf51c38 | 205 | |
910d8051 JS |
206 | /* Touch orient bits */ |
207 | #define MXT_XY_SWITCH (1 << 0) | |
208 | #define MXT_X_INVERT (1 << 1) | |
209 | #define MXT_Y_INVERT (1 << 2) | |
210 | ||
4cf51c38 | 211 | /* Touchscreen absolute values */ |
7686b108 | 212 | #define MXT_MAX_AREA 0xff |
4cf51c38 | 213 | |
7686b108 | 214 | #define MXT_MAX_FINGER 10 |
4cf51c38 | 215 | |
7686b108 | 216 | struct mxt_info { |
4cf51c38 JS |
217 | u8 family_id; |
218 | u8 variant_id; | |
219 | u8 version; | |
220 | u8 build; | |
221 | u8 matrix_xsize; | |
222 | u8 matrix_ysize; | |
223 | u8 object_num; | |
224 | }; | |
225 | ||
7686b108 | 226 | struct mxt_object { |
4cf51c38 JS |
227 | u8 type; |
228 | u16 start_address; | |
229 | u8 size; | |
230 | u8 instances; | |
231 | u8 num_report_ids; | |
232 | ||
233 | /* to map object and message */ | |
234 | u8 max_reportid; | |
235 | }; | |
236 | ||
7686b108 | 237 | struct mxt_message { |
4cf51c38 JS |
238 | u8 reportid; |
239 | u8 message[7]; | |
4cf51c38 JS |
240 | }; |
241 | ||
4cf51c38 | 242 | /* Each client has this additional data */ |
7686b108 | 243 | struct mxt_data { |
4cf51c38 JS |
244 | struct i2c_client *client; |
245 | struct input_dev *input_dev; | |
ec02ac2b | 246 | char phys[64]; /* device physical location */ |
7686b108 IV |
247 | const struct mxt_platform_data *pdata; |
248 | struct mxt_object *object_table; | |
249 | struct mxt_info info; | |
4cf51c38 | 250 | unsigned int irq; |
910d8051 JS |
251 | unsigned int max_x; |
252 | unsigned int max_y; | |
4cf51c38 JS |
253 | }; |
254 | ||
7686b108 | 255 | static bool mxt_object_readable(unsigned int type) |
4cf51c38 JS |
256 | { |
257 | switch (type) { | |
81c88a71 IV |
258 | case MXT_GEN_COMMAND_T6: |
259 | case MXT_GEN_POWER_T7: | |
260 | case MXT_GEN_ACQUIRE_T8: | |
261 | case MXT_GEN_DATASOURCE_T53: | |
262 | case MXT_TOUCH_MULTI_T9: | |
263 | case MXT_TOUCH_KEYARRAY_T15: | |
264 | case MXT_TOUCH_PROXIMITY_T23: | |
265 | case MXT_TOUCH_PROXKEY_T52: | |
266 | case MXT_PROCI_GRIPFACE_T20: | |
267 | case MXT_PROCG_NOISE_T22: | |
268 | case MXT_PROCI_ONETOUCH_T24: | |
269 | case MXT_PROCI_TWOTOUCH_T27: | |
270 | case MXT_PROCI_GRIP_T40: | |
271 | case MXT_PROCI_PALM_T41: | |
272 | case MXT_PROCI_TOUCHSUPPRESSION_T42: | |
273 | case MXT_PROCI_STYLUS_T47: | |
274 | case MXT_PROCG_NOISESUPPRESSION_T48: | |
275 | case MXT_SPT_COMMSCONFIG_T18: | |
276 | case MXT_SPT_GPIOPWM_T19: | |
277 | case MXT_SPT_SELFTEST_T25: | |
278 | case MXT_SPT_CTECONFIG_T28: | |
279 | case MXT_SPT_USERDATA_T38: | |
280 | case MXT_SPT_DIGITIZER_T43: | |
281 | case MXT_SPT_CTECONFIG_T46: | |
4cf51c38 JS |
282 | return true; |
283 | default: | |
284 | return false; | |
285 | } | |
286 | } | |
287 | ||
7686b108 | 288 | static bool mxt_object_writable(unsigned int type) |
4cf51c38 JS |
289 | { |
290 | switch (type) { | |
81c88a71 IV |
291 | case MXT_GEN_COMMAND_T6: |
292 | case MXT_GEN_POWER_T7: | |
293 | case MXT_GEN_ACQUIRE_T8: | |
294 | case MXT_TOUCH_MULTI_T9: | |
295 | case MXT_TOUCH_KEYARRAY_T15: | |
296 | case MXT_TOUCH_PROXIMITY_T23: | |
297 | case MXT_TOUCH_PROXKEY_T52: | |
298 | case MXT_PROCI_GRIPFACE_T20: | |
299 | case MXT_PROCG_NOISE_T22: | |
300 | case MXT_PROCI_ONETOUCH_T24: | |
301 | case MXT_PROCI_TWOTOUCH_T27: | |
302 | case MXT_PROCI_GRIP_T40: | |
303 | case MXT_PROCI_PALM_T41: | |
304 | case MXT_PROCI_TOUCHSUPPRESSION_T42: | |
305 | case MXT_PROCI_STYLUS_T47: | |
306 | case MXT_PROCG_NOISESUPPRESSION_T48: | |
307 | case MXT_SPT_COMMSCONFIG_T18: | |
308 | case MXT_SPT_GPIOPWM_T19: | |
309 | case MXT_SPT_SELFTEST_T25: | |
310 | case MXT_SPT_CTECONFIG_T28: | |
311 | case MXT_SPT_DIGITIZER_T43: | |
312 | case MXT_SPT_CTECONFIG_T46: | |
4cf51c38 JS |
313 | return true; |
314 | default: | |
315 | return false; | |
316 | } | |
317 | } | |
318 | ||
7686b108 | 319 | static void mxt_dump_message(struct device *dev, |
6ee3dbf9 | 320 | struct mxt_message *message) |
4cf51c38 | 321 | { |
6ee3dbf9 DK |
322 | dev_dbg(dev, "reportid: %u\tmessage: %02x %02x %02x %02x %02x %02x %02x\n", |
323 | message->reportid, message->message[0], message->message[1], | |
324 | message->message[2], message->message[3], message->message[4], | |
325 | message->message[5], message->message[6]); | |
4cf51c38 JS |
326 | } |
327 | ||
7686b108 | 328 | static int mxt_check_bootloader(struct i2c_client *client, |
4cf51c38 JS |
329 | unsigned int state) |
330 | { | |
331 | u8 val; | |
332 | ||
333 | recheck: | |
334 | if (i2c_master_recv(client, &val, 1) != 1) { | |
335 | dev_err(&client->dev, "%s: i2c recv failed\n", __func__); | |
336 | return -EIO; | |
337 | } | |
338 | ||
339 | switch (state) { | |
7686b108 IV |
340 | case MXT_WAITING_BOOTLOAD_CMD: |
341 | case MXT_WAITING_FRAME_DATA: | |
342 | val &= ~MXT_BOOT_STATUS_MASK; | |
4cf51c38 | 343 | break; |
7686b108 IV |
344 | case MXT_FRAME_CRC_PASS: |
345 | if (val == MXT_FRAME_CRC_CHECK) | |
4cf51c38 JS |
346 | goto recheck; |
347 | break; | |
348 | default: | |
349 | return -EINVAL; | |
350 | } | |
351 | ||
352 | if (val != state) { | |
353 | dev_err(&client->dev, "Unvalid bootloader mode state\n"); | |
354 | return -EINVAL; | |
355 | } | |
356 | ||
357 | return 0; | |
358 | } | |
359 | ||
7686b108 | 360 | static int mxt_unlock_bootloader(struct i2c_client *client) |
4cf51c38 JS |
361 | { |
362 | u8 buf[2]; | |
363 | ||
7686b108 IV |
364 | buf[0] = MXT_UNLOCK_CMD_LSB; |
365 | buf[1] = MXT_UNLOCK_CMD_MSB; | |
4cf51c38 JS |
366 | |
367 | if (i2c_master_send(client, buf, 2) != 2) { | |
368 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
369 | return -EIO; | |
370 | } | |
371 | ||
372 | return 0; | |
373 | } | |
374 | ||
7686b108 | 375 | static int mxt_fw_write(struct i2c_client *client, |
4cf51c38 JS |
376 | const u8 *data, unsigned int frame_size) |
377 | { | |
378 | if (i2c_master_send(client, data, frame_size) != frame_size) { | |
379 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
380 | return -EIO; | |
381 | } | |
382 | ||
383 | return 0; | |
384 | } | |
385 | ||
7686b108 | 386 | static int __mxt_read_reg(struct i2c_client *client, |
4cf51c38 JS |
387 | u16 reg, u16 len, void *val) |
388 | { | |
389 | struct i2c_msg xfer[2]; | |
390 | u8 buf[2]; | |
771733e3 | 391 | int ret; |
4cf51c38 JS |
392 | |
393 | buf[0] = reg & 0xff; | |
394 | buf[1] = (reg >> 8) & 0xff; | |
395 | ||
396 | /* Write register */ | |
397 | xfer[0].addr = client->addr; | |
398 | xfer[0].flags = 0; | |
399 | xfer[0].len = 2; | |
400 | xfer[0].buf = buf; | |
401 | ||
402 | /* Read data */ | |
403 | xfer[1].addr = client->addr; | |
404 | xfer[1].flags = I2C_M_RD; | |
405 | xfer[1].len = len; | |
406 | xfer[1].buf = val; | |
407 | ||
771733e3 DK |
408 | ret = i2c_transfer(client->adapter, xfer, 2); |
409 | if (ret == 2) { | |
410 | ret = 0; | |
411 | } else { | |
412 | if (ret >= 0) | |
413 | ret = -EIO; | |
414 | dev_err(&client->dev, "%s: i2c transfer failed (%d)\n", | |
415 | __func__, ret); | |
4cf51c38 JS |
416 | } |
417 | ||
771733e3 | 418 | return ret; |
4cf51c38 JS |
419 | } |
420 | ||
7686b108 | 421 | static int mxt_read_reg(struct i2c_client *client, u16 reg, u8 *val) |
4cf51c38 | 422 | { |
7686b108 | 423 | return __mxt_read_reg(client, reg, 1, val); |
4cf51c38 JS |
424 | } |
425 | ||
9638ab7c DK |
426 | static int __mxt_write_reg(struct i2c_client *client, u16 reg, u16 len, |
427 | const void *val) | |
4cf51c38 | 428 | { |
9638ab7c DK |
429 | u8 *buf; |
430 | size_t count; | |
771733e3 | 431 | int ret; |
4cf51c38 | 432 | |
9638ab7c DK |
433 | count = len + 2; |
434 | buf = kmalloc(count, GFP_KERNEL); | |
435 | if (!buf) | |
436 | return -ENOMEM; | |
437 | ||
4cf51c38 JS |
438 | buf[0] = reg & 0xff; |
439 | buf[1] = (reg >> 8) & 0xff; | |
9638ab7c | 440 | memcpy(&buf[2], val, len); |
4cf51c38 | 441 | |
9638ab7c DK |
442 | ret = i2c_master_send(client, buf, count); |
443 | if (ret == count) { | |
771733e3 DK |
444 | ret = 0; |
445 | } else { | |
446 | if (ret >= 0) | |
447 | ret = -EIO; | |
448 | dev_err(&client->dev, "%s: i2c send failed (%d)\n", | |
449 | __func__, ret); | |
4cf51c38 JS |
450 | } |
451 | ||
9638ab7c | 452 | kfree(buf); |
771733e3 | 453 | return ret; |
4cf51c38 JS |
454 | } |
455 | ||
9638ab7c DK |
456 | static int mxt_write_reg(struct i2c_client *client, u16 reg, u8 val) |
457 | { | |
458 | return __mxt_write_reg(client, reg, 1, &val); | |
459 | } | |
460 | ||
7686b108 | 461 | static int mxt_read_object_table(struct i2c_client *client, |
4cf51c38 JS |
462 | u16 reg, u8 *object_buf) |
463 | { | |
7686b108 | 464 | return __mxt_read_reg(client, reg, MXT_OBJECT_SIZE, |
4cf51c38 JS |
465 | object_buf); |
466 | } | |
467 | ||
7686b108 IV |
468 | static struct mxt_object * |
469 | mxt_get_object(struct mxt_data *data, u8 type) | |
4cf51c38 | 470 | { |
7686b108 | 471 | struct mxt_object *object; |
4cf51c38 JS |
472 | int i; |
473 | ||
474 | for (i = 0; i < data->info.object_num; i++) { | |
475 | object = data->object_table + i; | |
476 | if (object->type == type) | |
477 | return object; | |
478 | } | |
479 | ||
480 | dev_err(&data->client->dev, "Invalid object type\n"); | |
481 | return NULL; | |
482 | } | |
483 | ||
7686b108 IV |
484 | static int mxt_read_message(struct mxt_data *data, |
485 | struct mxt_message *message) | |
4cf51c38 | 486 | { |
7686b108 | 487 | struct mxt_object *object; |
4cf51c38 JS |
488 | u16 reg; |
489 | ||
81c88a71 | 490 | object = mxt_get_object(data, MXT_GEN_MESSAGE_T5); |
4cf51c38 JS |
491 | if (!object) |
492 | return -EINVAL; | |
493 | ||
494 | reg = object->start_address; | |
7686b108 IV |
495 | return __mxt_read_reg(data->client, reg, |
496 | sizeof(struct mxt_message), message); | |
4cf51c38 JS |
497 | } |
498 | ||
7686b108 | 499 | static int mxt_write_object(struct mxt_data *data, |
4cf51c38 JS |
500 | u8 type, u8 offset, u8 val) |
501 | { | |
7686b108 | 502 | struct mxt_object *object; |
4cf51c38 JS |
503 | u16 reg; |
504 | ||
7686b108 | 505 | object = mxt_get_object(data, type); |
d1ff320f | 506 | if (!object || offset >= object->size + 1) |
4cf51c38 JS |
507 | return -EINVAL; |
508 | ||
509 | reg = object->start_address; | |
7686b108 | 510 | return mxt_write_reg(data->client, reg + offset, val); |
4cf51c38 JS |
511 | } |
512 | ||
7686b108 IV |
513 | static void mxt_input_touchevent(struct mxt_data *data, |
514 | struct mxt_message *message, int id) | |
4cf51c38 | 515 | { |
4cf51c38 JS |
516 | struct device *dev = &data->client->dev; |
517 | u8 status = message->message[0]; | |
fba5bc31 | 518 | struct input_dev *input_dev = data->input_dev; |
4cf51c38 JS |
519 | int x; |
520 | int y; | |
521 | int area; | |
28ac2933 | 522 | int pressure; |
4cf51c38 | 523 | |
910d8051 JS |
524 | x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf); |
525 | y = (message->message[2] << 4) | ((message->message[3] & 0xf)); | |
526 | if (data->max_x < 1024) | |
527 | x = x >> 2; | |
528 | if (data->max_y < 1024) | |
529 | y = y >> 2; | |
530 | ||
4cf51c38 | 531 | area = message->message[4]; |
28ac2933 | 532 | pressure = message->message[5]; |
4cf51c38 JS |
533 | |
534 | dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id, | |
7686b108 | 535 | status & MXT_MOVE ? "moved" : "pressed", |
4cf51c38 | 536 | x, y, area); |
fba5bc31 DK |
537 | input_mt_slot(input_dev, id); |
538 | input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, | |
539 | status & MXT_DETECT); | |
540 | ||
541 | if (status & MXT_DETECT) { | |
542 | input_report_abs(input_dev, ABS_MT_POSITION_X, x); | |
543 | input_report_abs(input_dev, ABS_MT_POSITION_Y, y); | |
544 | input_report_abs(input_dev, ABS_MT_PRESSURE, pressure); | |
545 | input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area); | |
546 | } | |
4cf51c38 | 547 | |
fba5bc31 DK |
548 | input_mt_report_pointer_emulation(input_dev, false); |
549 | input_sync(input_dev); | |
4cf51c38 JS |
550 | } |
551 | ||
7686b108 | 552 | static irqreturn_t mxt_interrupt(int irq, void *dev_id) |
4cf51c38 | 553 | { |
7686b108 IV |
554 | struct mxt_data *data = dev_id; |
555 | struct mxt_message message; | |
556 | struct mxt_object *object; | |
4cf51c38 JS |
557 | struct device *dev = &data->client->dev; |
558 | int id; | |
559 | u8 reportid; | |
560 | u8 max_reportid; | |
561 | u8 min_reportid; | |
562 | ||
563 | do { | |
7686b108 | 564 | if (mxt_read_message(data, &message)) { |
4cf51c38 JS |
565 | dev_err(dev, "Failed to read message\n"); |
566 | goto end; | |
567 | } | |
568 | ||
569 | reportid = message.reportid; | |
570 | ||
81c88a71 IV |
571 | /* whether reportid is thing of MXT_TOUCH_MULTI_T9 */ |
572 | object = mxt_get_object(data, MXT_TOUCH_MULTI_T9); | |
4cf51c38 JS |
573 | if (!object) |
574 | goto end; | |
575 | ||
576 | max_reportid = object->max_reportid; | |
577 | min_reportid = max_reportid - object->num_report_ids + 1; | |
578 | id = reportid - min_reportid; | |
579 | ||
580 | if (reportid >= min_reportid && reportid <= max_reportid) | |
7686b108 | 581 | mxt_input_touchevent(data, &message, id); |
4cf51c38 | 582 | else |
7686b108 | 583 | mxt_dump_message(dev, &message); |
4cf51c38 JS |
584 | } while (reportid != 0xff); |
585 | ||
586 | end: | |
587 | return IRQ_HANDLED; | |
588 | } | |
589 | ||
7686b108 | 590 | static int mxt_check_reg_init(struct mxt_data *data) |
4cf51c38 | 591 | { |
71749f5c | 592 | const struct mxt_platform_data *pdata = data->pdata; |
7686b108 | 593 | struct mxt_object *object; |
4cf51c38 JS |
594 | struct device *dev = &data->client->dev; |
595 | int index = 0; | |
cf94bc09 DK |
596 | int i, size; |
597 | int ret; | |
4cf51c38 | 598 | |
71749f5c IV |
599 | if (!pdata->config) { |
600 | dev_dbg(dev, "No cfg data defined, skipping reg init\n"); | |
601 | return 0; | |
4cf51c38 JS |
602 | } |
603 | ||
604 | for (i = 0; i < data->info.object_num; i++) { | |
605 | object = data->object_table + i; | |
606 | ||
7686b108 | 607 | if (!mxt_object_writable(object->type)) |
4cf51c38 JS |
608 | continue; |
609 | ||
cf94bc09 DK |
610 | size = (object->size + 1) * (object->instances + 1); |
611 | if (index + size > pdata->config_length) { | |
612 | dev_err(dev, "Not enough config data!\n"); | |
613 | return -EINVAL; | |
71749f5c | 614 | } |
cf94bc09 DK |
615 | |
616 | ret = __mxt_write_reg(data->client, object->start_address, | |
617 | size, &pdata->config[index]); | |
618 | if (ret) | |
619 | return ret; | |
620 | index += size; | |
4cf51c38 JS |
621 | } |
622 | ||
623 | return 0; | |
624 | } | |
625 | ||
7686b108 | 626 | static int mxt_make_highchg(struct mxt_data *data) |
4cf51c38 JS |
627 | { |
628 | struct device *dev = &data->client->dev; | |
26cdb1ae | 629 | struct mxt_message message; |
4cf51c38 JS |
630 | int count = 10; |
631 | int error; | |
4cf51c38 JS |
632 | |
633 | /* Read dummy message to make high CHG pin */ | |
634 | do { | |
26cdb1ae | 635 | error = mxt_read_message(data, &message); |
4cf51c38 JS |
636 | if (error) |
637 | return error; | |
26cdb1ae | 638 | } while (message.reportid != 0xff && --count); |
4cf51c38 JS |
639 | |
640 | if (!count) { | |
641 | dev_err(dev, "CHG pin isn't cleared\n"); | |
642 | return -EBUSY; | |
643 | } | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
7686b108 | 648 | static void mxt_handle_pdata(struct mxt_data *data) |
4cf51c38 | 649 | { |
7686b108 | 650 | const struct mxt_platform_data *pdata = data->pdata; |
4cf51c38 JS |
651 | u8 voltage; |
652 | ||
653 | /* Set touchscreen lines */ | |
81c88a71 | 654 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_XSIZE, |
4cf51c38 | 655 | pdata->x_line); |
81c88a71 | 656 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_YSIZE, |
4cf51c38 JS |
657 | pdata->y_line); |
658 | ||
659 | /* Set touchscreen orient */ | |
81c88a71 | 660 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_ORIENT, |
4cf51c38 JS |
661 | pdata->orient); |
662 | ||
663 | /* Set touchscreen burst length */ | |
81c88a71 | 664 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 665 | MXT_TOUCH_BLEN, pdata->blen); |
4cf51c38 JS |
666 | |
667 | /* Set touchscreen threshold */ | |
81c88a71 | 668 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 669 | MXT_TOUCH_TCHTHR, pdata->threshold); |
4cf51c38 JS |
670 | |
671 | /* Set touchscreen resolution */ | |
81c88a71 | 672 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 673 | MXT_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff); |
81c88a71 | 674 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 675 | MXT_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8); |
81c88a71 | 676 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 677 | MXT_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff); |
81c88a71 | 678 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 679 | MXT_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8); |
4cf51c38 JS |
680 | |
681 | /* Set touchscreen voltage */ | |
979a72da | 682 | if (pdata->voltage) { |
7686b108 IV |
683 | if (pdata->voltage < MXT_VOLTAGE_DEFAULT) { |
684 | voltage = (MXT_VOLTAGE_DEFAULT - pdata->voltage) / | |
685 | MXT_VOLTAGE_STEP; | |
4cf51c38 JS |
686 | voltage = 0xff - voltage + 1; |
687 | } else | |
7686b108 IV |
688 | voltage = (pdata->voltage - MXT_VOLTAGE_DEFAULT) / |
689 | MXT_VOLTAGE_STEP; | |
4cf51c38 | 690 | |
81c88a71 | 691 | mxt_write_object(data, MXT_SPT_CTECONFIG_T28, |
7686b108 | 692 | MXT_CTE_VOLTAGE, voltage); |
4cf51c38 JS |
693 | } |
694 | } | |
695 | ||
7686b108 | 696 | static int mxt_get_info(struct mxt_data *data) |
4cf51c38 JS |
697 | { |
698 | struct i2c_client *client = data->client; | |
7686b108 | 699 | struct mxt_info *info = &data->info; |
4cf51c38 | 700 | int error; |
4cf51c38 | 701 | |
23003a84 DK |
702 | /* Read 7-byte info block starting at address 0 */ |
703 | error = __mxt_read_reg(client, MXT_INFO, sizeof(*info), info); | |
4cf51c38 JS |
704 | if (error) |
705 | return error; | |
4cf51c38 JS |
706 | |
707 | return 0; | |
708 | } | |
709 | ||
7686b108 | 710 | static int mxt_get_object_table(struct mxt_data *data) |
4cf51c38 JS |
711 | { |
712 | int error; | |
713 | int i; | |
714 | u16 reg; | |
715 | u8 reportid = 0; | |
7686b108 | 716 | u8 buf[MXT_OBJECT_SIZE]; |
4cf51c38 JS |
717 | |
718 | for (i = 0; i < data->info.object_num; i++) { | |
7686b108 | 719 | struct mxt_object *object = data->object_table + i; |
4cf51c38 | 720 | |
7686b108 IV |
721 | reg = MXT_OBJECT_START + MXT_OBJECT_SIZE * i; |
722 | error = mxt_read_object_table(data->client, reg, buf); | |
4cf51c38 JS |
723 | if (error) |
724 | return error; | |
725 | ||
726 | object->type = buf[0]; | |
727 | object->start_address = (buf[2] << 8) | buf[1]; | |
728 | object->size = buf[3]; | |
729 | object->instances = buf[4]; | |
730 | object->num_report_ids = buf[5]; | |
731 | ||
732 | if (object->num_report_ids) { | |
733 | reportid += object->num_report_ids * | |
734 | (object->instances + 1); | |
735 | object->max_reportid = reportid; | |
736 | } | |
737 | } | |
738 | ||
739 | return 0; | |
740 | } | |
741 | ||
7686b108 | 742 | static int mxt_initialize(struct mxt_data *data) |
4cf51c38 JS |
743 | { |
744 | struct i2c_client *client = data->client; | |
7686b108 | 745 | struct mxt_info *info = &data->info; |
4cf51c38 JS |
746 | int error; |
747 | u8 val; | |
748 | ||
7686b108 | 749 | error = mxt_get_info(data); |
4cf51c38 JS |
750 | if (error) |
751 | return error; | |
752 | ||
753 | data->object_table = kcalloc(info->object_num, | |
7686b108 | 754 | sizeof(struct mxt_object), |
4cf51c38 JS |
755 | GFP_KERNEL); |
756 | if (!data->object_table) { | |
757 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
758 | return -ENOMEM; | |
759 | } | |
760 | ||
761 | /* Get object table information */ | |
7686b108 | 762 | error = mxt_get_object_table(data); |
4cf51c38 JS |
763 | if (error) |
764 | return error; | |
765 | ||
766 | /* Check register init values */ | |
7686b108 | 767 | error = mxt_check_reg_init(data); |
4cf51c38 JS |
768 | if (error) |
769 | return error; | |
770 | ||
7686b108 | 771 | mxt_handle_pdata(data); |
4cf51c38 JS |
772 | |
773 | /* Backup to memory */ | |
81c88a71 | 774 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
775 | MXT_COMMAND_BACKUPNV, |
776 | MXT_BACKUP_VALUE); | |
777 | msleep(MXT_BACKUP_TIME); | |
4cf51c38 JS |
778 | |
779 | /* Soft reset */ | |
81c88a71 | 780 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
781 | MXT_COMMAND_RESET, 1); |
782 | msleep(MXT_RESET_TIME); | |
4cf51c38 JS |
783 | |
784 | /* Update matrix size at info struct */ | |
7686b108 | 785 | error = mxt_read_reg(client, MXT_MATRIX_X_SIZE, &val); |
4cf51c38 JS |
786 | if (error) |
787 | return error; | |
788 | info->matrix_xsize = val; | |
789 | ||
7686b108 | 790 | error = mxt_read_reg(client, MXT_MATRIX_Y_SIZE, &val); |
4cf51c38 JS |
791 | if (error) |
792 | return error; | |
793 | info->matrix_ysize = val; | |
794 | ||
795 | dev_info(&client->dev, | |
e0e0269f DK |
796 | "Family ID: %u Variant ID: %u Major.Minor.Build: %u.%u.%02X\n", |
797 | info->family_id, info->variant_id, info->version >> 4, | |
798 | info->version & 0xf, info->build); | |
4cf51c38 JS |
799 | |
800 | dev_info(&client->dev, | |
e0e0269f | 801 | "Matrix X Size: %u Matrix Y Size: %u Object Num: %u\n", |
4cf51c38 JS |
802 | info->matrix_xsize, info->matrix_ysize, |
803 | info->object_num); | |
804 | ||
805 | return 0; | |
806 | } | |
807 | ||
910d8051 JS |
808 | static void mxt_calc_resolution(struct mxt_data *data) |
809 | { | |
810 | unsigned int max_x = data->pdata->x_size - 1; | |
811 | unsigned int max_y = data->pdata->y_size - 1; | |
812 | ||
813 | if (data->pdata->orient & MXT_XY_SWITCH) { | |
814 | data->max_x = max_y; | |
815 | data->max_y = max_x; | |
816 | } else { | |
817 | data->max_x = max_x; | |
818 | data->max_y = max_y; | |
819 | } | |
820 | } | |
821 | ||
b19fc9ec DK |
822 | /* Firmware Version is returned as Major.Minor.Build */ |
823 | static ssize_t mxt_fw_version_show(struct device *dev, | |
824 | struct device_attribute *attr, char *buf) | |
825 | { | |
826 | struct mxt_data *data = dev_get_drvdata(dev); | |
827 | struct mxt_info *info = &data->info; | |
828 | return scnprintf(buf, PAGE_SIZE, "%u.%u.%02X\n", | |
829 | info->version >> 4, info->version & 0xf, info->build); | |
830 | } | |
831 | ||
832 | /* Hardware Version is returned as FamilyID.VariantID */ | |
833 | static ssize_t mxt_hw_version_show(struct device *dev, | |
834 | struct device_attribute *attr, char *buf) | |
835 | { | |
836 | struct mxt_data *data = dev_get_drvdata(dev); | |
837 | struct mxt_info *info = &data->info; | |
838 | return scnprintf(buf, PAGE_SIZE, "%u.%u\n", | |
839 | info->family_id, info->variant_id); | |
840 | } | |
841 | ||
794eb67e DK |
842 | static ssize_t mxt_show_instance(char *buf, int count, |
843 | struct mxt_object *object, int instance, | |
844 | const u8 *val) | |
845 | { | |
846 | int i; | |
847 | ||
848 | if (object->instances > 0) | |
849 | count += scnprintf(buf + count, PAGE_SIZE - count, | |
850 | "Instance %u\n", instance); | |
851 | ||
852 | for (i = 0; i < object->size + 1; i++) | |
853 | count += scnprintf(buf + count, PAGE_SIZE - count, | |
854 | "\t[%2u]: %02x (%d)\n", i, val[i], val[i]); | |
855 | count += scnprintf(buf + count, PAGE_SIZE - count, "\n"); | |
856 | ||
857 | return count; | |
858 | } | |
859 | ||
7686b108 | 860 | static ssize_t mxt_object_show(struct device *dev, |
4cf51c38 JS |
861 | struct device_attribute *attr, char *buf) |
862 | { | |
7686b108 IV |
863 | struct mxt_data *data = dev_get_drvdata(dev); |
864 | struct mxt_object *object; | |
4cf51c38 JS |
865 | int count = 0; |
866 | int i, j; | |
867 | int error; | |
43a91d51 DK |
868 | u8 *obuf; |
869 | ||
870 | /* Pre-allocate buffer large enough to hold max sized object. */ | |
871 | obuf = kmalloc(256, GFP_KERNEL); | |
872 | if (!obuf) | |
873 | return -ENOMEM; | |
4cf51c38 | 874 | |
43a91d51 | 875 | error = 0; |
4cf51c38 JS |
876 | for (i = 0; i < data->info.object_num; i++) { |
877 | object = data->object_table + i; | |
878 | ||
91630955 | 879 | if (!mxt_object_readable(object->type)) |
4cf51c38 | 880 | continue; |
91630955 DK |
881 | |
882 | count += scnprintf(buf + count, PAGE_SIZE - count, | |
883 | "T%u:\n", object->type); | |
4cf51c38 | 884 | |
794eb67e DK |
885 | for (j = 0; j < object->instances + 1; j++) { |
886 | u16 size = object->size + 1; | |
887 | u16 addr = object->start_address + j * size; | |
43a91d51 | 888 | |
794eb67e DK |
889 | error = __mxt_read_reg(data->client, addr, size, obuf); |
890 | if (error) | |
891 | goto done; | |
4cf51c38 | 892 | |
794eb67e | 893 | count = mxt_show_instance(buf, count, object, j, obuf); |
4cf51c38 | 894 | } |
4cf51c38 JS |
895 | } |
896 | ||
794eb67e | 897 | done: |
43a91d51 DK |
898 | kfree(obuf); |
899 | return error ?: count; | |
4cf51c38 JS |
900 | } |
901 | ||
7686b108 | 902 | static int mxt_load_fw(struct device *dev, const char *fn) |
4cf51c38 | 903 | { |
7686b108 | 904 | struct mxt_data *data = dev_get_drvdata(dev); |
4cf51c38 JS |
905 | struct i2c_client *client = data->client; |
906 | const struct firmware *fw = NULL; | |
907 | unsigned int frame_size; | |
908 | unsigned int pos = 0; | |
909 | int ret; | |
910 | ||
911 | ret = request_firmware(&fw, fn, dev); | |
912 | if (ret) { | |
913 | dev_err(dev, "Unable to open firmware %s\n", fn); | |
914 | return ret; | |
915 | } | |
916 | ||
917 | /* Change to the bootloader mode */ | |
81c88a71 | 918 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
919 | MXT_COMMAND_RESET, MXT_BOOT_VALUE); |
920 | msleep(MXT_RESET_TIME); | |
4cf51c38 JS |
921 | |
922 | /* Change to slave address of bootloader */ | |
7686b108 IV |
923 | if (client->addr == MXT_APP_LOW) |
924 | client->addr = MXT_BOOT_LOW; | |
4cf51c38 | 925 | else |
7686b108 | 926 | client->addr = MXT_BOOT_HIGH; |
4cf51c38 | 927 | |
7686b108 | 928 | ret = mxt_check_bootloader(client, MXT_WAITING_BOOTLOAD_CMD); |
4cf51c38 JS |
929 | if (ret) |
930 | goto out; | |
931 | ||
932 | /* Unlock bootloader */ | |
7686b108 | 933 | mxt_unlock_bootloader(client); |
4cf51c38 JS |
934 | |
935 | while (pos < fw->size) { | |
7686b108 IV |
936 | ret = mxt_check_bootloader(client, |
937 | MXT_WAITING_FRAME_DATA); | |
4cf51c38 JS |
938 | if (ret) |
939 | goto out; | |
940 | ||
941 | frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1)); | |
942 | ||
943 | /* We should add 2 at frame size as the the firmware data is not | |
944 | * included the CRC bytes. | |
945 | */ | |
946 | frame_size += 2; | |
947 | ||
948 | /* Write one frame to device */ | |
7686b108 | 949 | mxt_fw_write(client, fw->data + pos, frame_size); |
4cf51c38 | 950 | |
7686b108 IV |
951 | ret = mxt_check_bootloader(client, |
952 | MXT_FRAME_CRC_PASS); | |
4cf51c38 JS |
953 | if (ret) |
954 | goto out; | |
955 | ||
956 | pos += frame_size; | |
957 | ||
958 | dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size); | |
959 | } | |
960 | ||
961 | out: | |
962 | release_firmware(fw); | |
963 | ||
964 | /* Change to slave address of application */ | |
7686b108 IV |
965 | if (client->addr == MXT_BOOT_LOW) |
966 | client->addr = MXT_APP_LOW; | |
4cf51c38 | 967 | else |
7686b108 | 968 | client->addr = MXT_APP_HIGH; |
4cf51c38 JS |
969 | |
970 | return ret; | |
971 | } | |
972 | ||
7686b108 | 973 | static ssize_t mxt_update_fw_store(struct device *dev, |
4cf51c38 JS |
974 | struct device_attribute *attr, |
975 | const char *buf, size_t count) | |
976 | { | |
7686b108 | 977 | struct mxt_data *data = dev_get_drvdata(dev); |
4cf51c38 JS |
978 | int error; |
979 | ||
4cf51c38 JS |
980 | disable_irq(data->irq); |
981 | ||
7686b108 | 982 | error = mxt_load_fw(dev, MXT_FW_NAME); |
4cf51c38 JS |
983 | if (error) { |
984 | dev_err(dev, "The firmware update failed(%d)\n", error); | |
985 | count = error; | |
986 | } else { | |
987 | dev_dbg(dev, "The firmware update succeeded\n"); | |
988 | ||
989 | /* Wait for reset */ | |
7686b108 | 990 | msleep(MXT_FWRESET_TIME); |
4cf51c38 JS |
991 | |
992 | kfree(data->object_table); | |
993 | data->object_table = NULL; | |
994 | ||
7686b108 | 995 | mxt_initialize(data); |
4cf51c38 JS |
996 | } |
997 | ||
998 | enable_irq(data->irq); | |
999 | ||
08960a07 IV |
1000 | error = mxt_make_highchg(data); |
1001 | if (error) | |
1002 | return error; | |
1003 | ||
4cf51c38 JS |
1004 | return count; |
1005 | } | |
1006 | ||
b19fc9ec DK |
1007 | static DEVICE_ATTR(fw_version, S_IRUGO, mxt_fw_version_show, NULL); |
1008 | static DEVICE_ATTR(hw_version, S_IRUGO, mxt_hw_version_show, NULL); | |
71b3e938 DK |
1009 | static DEVICE_ATTR(object, S_IRUGO, mxt_object_show, NULL); |
1010 | static DEVICE_ATTR(update_fw, S_IWUSR, NULL, mxt_update_fw_store); | |
4cf51c38 | 1011 | |
7686b108 | 1012 | static struct attribute *mxt_attrs[] = { |
b19fc9ec DK |
1013 | &dev_attr_fw_version.attr, |
1014 | &dev_attr_hw_version.attr, | |
4cf51c38 JS |
1015 | &dev_attr_object.attr, |
1016 | &dev_attr_update_fw.attr, | |
1017 | NULL | |
1018 | }; | |
1019 | ||
7686b108 IV |
1020 | static const struct attribute_group mxt_attr_group = { |
1021 | .attrs = mxt_attrs, | |
4cf51c38 JS |
1022 | }; |
1023 | ||
7686b108 | 1024 | static void mxt_start(struct mxt_data *data) |
4cf51c38 JS |
1025 | { |
1026 | /* Touch enable */ | |
7686b108 | 1027 | mxt_write_object(data, |
81c88a71 | 1028 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0x83); |
4cf51c38 JS |
1029 | } |
1030 | ||
7686b108 | 1031 | static void mxt_stop(struct mxt_data *data) |
4cf51c38 JS |
1032 | { |
1033 | /* Touch disable */ | |
7686b108 | 1034 | mxt_write_object(data, |
81c88a71 | 1035 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0); |
4cf51c38 JS |
1036 | } |
1037 | ||
7686b108 | 1038 | static int mxt_input_open(struct input_dev *dev) |
4cf51c38 | 1039 | { |
7686b108 | 1040 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1041 | |
7686b108 | 1042 | mxt_start(data); |
4cf51c38 JS |
1043 | |
1044 | return 0; | |
1045 | } | |
1046 | ||
7686b108 | 1047 | static void mxt_input_close(struct input_dev *dev) |
4cf51c38 | 1048 | { |
7686b108 | 1049 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1050 | |
7686b108 | 1051 | mxt_stop(data); |
4cf51c38 JS |
1052 | } |
1053 | ||
7686b108 | 1054 | static int __devinit mxt_probe(struct i2c_client *client, |
4cf51c38 JS |
1055 | const struct i2c_device_id *id) |
1056 | { | |
919ed895 | 1057 | const struct mxt_platform_data *pdata = client->dev.platform_data; |
7686b108 | 1058 | struct mxt_data *data; |
4cf51c38 JS |
1059 | struct input_dev *input_dev; |
1060 | int error; | |
1061 | ||
919ed895 | 1062 | if (!pdata) |
4cf51c38 JS |
1063 | return -EINVAL; |
1064 | ||
7686b108 | 1065 | data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL); |
4cf51c38 JS |
1066 | input_dev = input_allocate_device(); |
1067 | if (!data || !input_dev) { | |
1068 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
1069 | error = -ENOMEM; | |
1070 | goto err_free_mem; | |
1071 | } | |
1072 | ||
7686b108 | 1073 | input_dev->name = "Atmel maXTouch Touchscreen"; |
ec02ac2b DK |
1074 | snprintf(data->phys, sizeof(data->phys), "i2c-%u-%04x/input0", |
1075 | client->adapter->nr, client->addr); | |
1076 | input_dev->phys = data->phys; | |
1077 | ||
4cf51c38 JS |
1078 | input_dev->id.bustype = BUS_I2C; |
1079 | input_dev->dev.parent = &client->dev; | |
7686b108 IV |
1080 | input_dev->open = mxt_input_open; |
1081 | input_dev->close = mxt_input_close; | |
4cf51c38 | 1082 | |
910d8051 JS |
1083 | data->client = client; |
1084 | data->input_dev = input_dev; | |
1085 | data->pdata = pdata; | |
1086 | data->irq = client->irq; | |
1087 | ||
1088 | mxt_calc_resolution(data); | |
1089 | ||
4cf51c38 JS |
1090 | __set_bit(EV_ABS, input_dev->evbit); |
1091 | __set_bit(EV_KEY, input_dev->evbit); | |
1092 | __set_bit(BTN_TOUCH, input_dev->keybit); | |
1093 | ||
1094 | /* For single touch */ | |
1095 | input_set_abs_params(input_dev, ABS_X, | |
910d8051 | 1096 | 0, data->max_x, 0, 0); |
4cf51c38 | 1097 | input_set_abs_params(input_dev, ABS_Y, |
910d8051 | 1098 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1099 | input_set_abs_params(input_dev, ABS_PRESSURE, |
1100 | 0, 255, 0, 0); | |
4cf51c38 JS |
1101 | |
1102 | /* For multi touch */ | |
e1e1658d DK |
1103 | error = input_mt_init_slots(input_dev, MXT_MAX_FINGER); |
1104 | if (error) | |
1105 | goto err_free_mem; | |
4cf51c38 | 1106 | input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, |
7686b108 | 1107 | 0, MXT_MAX_AREA, 0, 0); |
4cf51c38 | 1108 | input_set_abs_params(input_dev, ABS_MT_POSITION_X, |
910d8051 | 1109 | 0, data->max_x, 0, 0); |
4cf51c38 | 1110 | input_set_abs_params(input_dev, ABS_MT_POSITION_Y, |
910d8051 | 1111 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1112 | input_set_abs_params(input_dev, ABS_MT_PRESSURE, |
1113 | 0, 255, 0, 0); | |
4cf51c38 JS |
1114 | |
1115 | input_set_drvdata(input_dev, data); | |
4cf51c38 JS |
1116 | i2c_set_clientdata(client, data); |
1117 | ||
7686b108 | 1118 | error = mxt_initialize(data); |
4cf51c38 JS |
1119 | if (error) |
1120 | goto err_free_object; | |
1121 | ||
7686b108 | 1122 | error = request_threaded_irq(client->irq, NULL, mxt_interrupt, |
c2ef9a1a | 1123 | pdata->irqflags, client->name, data); |
4cf51c38 JS |
1124 | if (error) { |
1125 | dev_err(&client->dev, "Failed to register interrupt\n"); | |
1126 | goto err_free_object; | |
1127 | } | |
1128 | ||
08960a07 IV |
1129 | error = mxt_make_highchg(data); |
1130 | if (error) | |
1131 | goto err_free_irq; | |
1132 | ||
4cf51c38 JS |
1133 | error = input_register_device(input_dev); |
1134 | if (error) | |
1135 | goto err_free_irq; | |
1136 | ||
7686b108 | 1137 | error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 | 1138 | if (error) |
63990038 | 1139 | dev_warn(&client->dev, "error creating sysfs entries.\n"); |
4cf51c38 JS |
1140 | |
1141 | return 0; | |
1142 | ||
4cf51c38 JS |
1143 | err_free_irq: |
1144 | free_irq(client->irq, data); | |
1145 | err_free_object: | |
1146 | kfree(data->object_table); | |
1147 | err_free_mem: | |
1148 | input_free_device(input_dev); | |
1149 | kfree(data); | |
1150 | return error; | |
1151 | } | |
1152 | ||
7686b108 | 1153 | static int __devexit mxt_remove(struct i2c_client *client) |
4cf51c38 | 1154 | { |
7686b108 | 1155 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 | 1156 | |
7686b108 | 1157 | sysfs_remove_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 JS |
1158 | free_irq(data->irq, data); |
1159 | input_unregister_device(data->input_dev); | |
1160 | kfree(data->object_table); | |
1161 | kfree(data); | |
1162 | ||
1163 | return 0; | |
1164 | } | |
1165 | ||
3a73c816 | 1166 | #ifdef CONFIG_PM_SLEEP |
7686b108 | 1167 | static int mxt_suspend(struct device *dev) |
4cf51c38 | 1168 | { |
8b5fce06 | 1169 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1170 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1171 | struct input_dev *input_dev = data->input_dev; |
1172 | ||
1173 | mutex_lock(&input_dev->mutex); | |
1174 | ||
1175 | if (input_dev->users) | |
7686b108 | 1176 | mxt_stop(data); |
4cf51c38 JS |
1177 | |
1178 | mutex_unlock(&input_dev->mutex); | |
1179 | ||
1180 | return 0; | |
1181 | } | |
1182 | ||
7686b108 | 1183 | static int mxt_resume(struct device *dev) |
4cf51c38 | 1184 | { |
8b5fce06 | 1185 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1186 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1187 | struct input_dev *input_dev = data->input_dev; |
1188 | ||
1189 | /* Soft reset */ | |
81c88a71 | 1190 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 | 1191 | MXT_COMMAND_RESET, 1); |
4cf51c38 | 1192 | |
7686b108 | 1193 | msleep(MXT_RESET_TIME); |
4cf51c38 JS |
1194 | |
1195 | mutex_lock(&input_dev->mutex); | |
1196 | ||
1197 | if (input_dev->users) | |
7686b108 | 1198 | mxt_start(data); |
4cf51c38 JS |
1199 | |
1200 | mutex_unlock(&input_dev->mutex); | |
1201 | ||
1202 | return 0; | |
1203 | } | |
4cf51c38 JS |
1204 | #endif |
1205 | ||
3a73c816 DK |
1206 | static SIMPLE_DEV_PM_OPS(mxt_pm_ops, mxt_suspend, mxt_resume); |
1207 | ||
7686b108 | 1208 | static const struct i2c_device_id mxt_id[] = { |
4cf51c38 | 1209 | { "qt602240_ts", 0 }, |
7686b108 | 1210 | { "atmel_mxt_ts", 0 }, |
46ee2a05 | 1211 | { "mXT224", 0 }, |
4cf51c38 JS |
1212 | { } |
1213 | }; | |
7686b108 | 1214 | MODULE_DEVICE_TABLE(i2c, mxt_id); |
4cf51c38 | 1215 | |
7686b108 | 1216 | static struct i2c_driver mxt_driver = { |
4cf51c38 | 1217 | .driver = { |
7686b108 | 1218 | .name = "atmel_mxt_ts", |
4cf51c38 | 1219 | .owner = THIS_MODULE, |
7686b108 | 1220 | .pm = &mxt_pm_ops, |
4cf51c38 | 1221 | }, |
7686b108 IV |
1222 | .probe = mxt_probe, |
1223 | .remove = __devexit_p(mxt_remove), | |
1224 | .id_table = mxt_id, | |
4cf51c38 JS |
1225 | }; |
1226 | ||
1b92c1cf | 1227 | module_i2c_driver(mxt_driver); |
4cf51c38 JS |
1228 | |
1229 | /* Module information */ | |
1230 | MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); | |
7686b108 | 1231 | MODULE_DESCRIPTION("Atmel maXTouch Touchscreen driver"); |
4cf51c38 | 1232 | MODULE_LICENSE("GPL"); |