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]; | |
239 | u8 checksum; | |
240 | }; | |
241 | ||
7686b108 | 242 | struct mxt_finger { |
4cf51c38 JS |
243 | int status; |
244 | int x; | |
245 | int y; | |
246 | int area; | |
28ac2933 | 247 | int pressure; |
4cf51c38 JS |
248 | }; |
249 | ||
250 | /* Each client has this additional data */ | |
7686b108 | 251 | struct mxt_data { |
4cf51c38 JS |
252 | struct i2c_client *client; |
253 | struct input_dev *input_dev; | |
7686b108 IV |
254 | const struct mxt_platform_data *pdata; |
255 | struct mxt_object *object_table; | |
256 | struct mxt_info info; | |
257 | struct mxt_finger finger[MXT_MAX_FINGER]; | |
4cf51c38 | 258 | unsigned int irq; |
910d8051 JS |
259 | unsigned int max_x; |
260 | unsigned int max_y; | |
4cf51c38 JS |
261 | }; |
262 | ||
7686b108 | 263 | static bool mxt_object_readable(unsigned int type) |
4cf51c38 JS |
264 | { |
265 | switch (type) { | |
81c88a71 IV |
266 | case MXT_GEN_MESSAGE_T5: |
267 | case MXT_GEN_COMMAND_T6: | |
268 | case MXT_GEN_POWER_T7: | |
269 | case MXT_GEN_ACQUIRE_T8: | |
270 | case MXT_GEN_DATASOURCE_T53: | |
271 | case MXT_TOUCH_MULTI_T9: | |
272 | case MXT_TOUCH_KEYARRAY_T15: | |
273 | case MXT_TOUCH_PROXIMITY_T23: | |
274 | case MXT_TOUCH_PROXKEY_T52: | |
275 | case MXT_PROCI_GRIPFACE_T20: | |
276 | case MXT_PROCG_NOISE_T22: | |
277 | case MXT_PROCI_ONETOUCH_T24: | |
278 | case MXT_PROCI_TWOTOUCH_T27: | |
279 | case MXT_PROCI_GRIP_T40: | |
280 | case MXT_PROCI_PALM_T41: | |
281 | case MXT_PROCI_TOUCHSUPPRESSION_T42: | |
282 | case MXT_PROCI_STYLUS_T47: | |
283 | case MXT_PROCG_NOISESUPPRESSION_T48: | |
284 | case MXT_SPT_COMMSCONFIG_T18: | |
285 | case MXT_SPT_GPIOPWM_T19: | |
286 | case MXT_SPT_SELFTEST_T25: | |
287 | case MXT_SPT_CTECONFIG_T28: | |
288 | case MXT_SPT_USERDATA_T38: | |
289 | case MXT_SPT_DIGITIZER_T43: | |
290 | case MXT_SPT_CTECONFIG_T46: | |
4cf51c38 JS |
291 | return true; |
292 | default: | |
293 | return false; | |
294 | } | |
295 | } | |
296 | ||
7686b108 | 297 | static bool mxt_object_writable(unsigned int type) |
4cf51c38 JS |
298 | { |
299 | switch (type) { | |
81c88a71 IV |
300 | case MXT_GEN_COMMAND_T6: |
301 | case MXT_GEN_POWER_T7: | |
302 | case MXT_GEN_ACQUIRE_T8: | |
303 | case MXT_TOUCH_MULTI_T9: | |
304 | case MXT_TOUCH_KEYARRAY_T15: | |
305 | case MXT_TOUCH_PROXIMITY_T23: | |
306 | case MXT_TOUCH_PROXKEY_T52: | |
307 | case MXT_PROCI_GRIPFACE_T20: | |
308 | case MXT_PROCG_NOISE_T22: | |
309 | case MXT_PROCI_ONETOUCH_T24: | |
310 | case MXT_PROCI_TWOTOUCH_T27: | |
311 | case MXT_PROCI_GRIP_T40: | |
312 | case MXT_PROCI_PALM_T41: | |
313 | case MXT_PROCI_TOUCHSUPPRESSION_T42: | |
314 | case MXT_PROCI_STYLUS_T47: | |
315 | case MXT_PROCG_NOISESUPPRESSION_T48: | |
316 | case MXT_SPT_COMMSCONFIG_T18: | |
317 | case MXT_SPT_GPIOPWM_T19: | |
318 | case MXT_SPT_SELFTEST_T25: | |
319 | case MXT_SPT_CTECONFIG_T28: | |
320 | case MXT_SPT_DIGITIZER_T43: | |
321 | case MXT_SPT_CTECONFIG_T46: | |
4cf51c38 JS |
322 | return true; |
323 | default: | |
324 | return false; | |
325 | } | |
326 | } | |
327 | ||
7686b108 IV |
328 | static void mxt_dump_message(struct device *dev, |
329 | struct mxt_message *message) | |
4cf51c38 JS |
330 | { |
331 | dev_dbg(dev, "reportid:\t0x%x\n", message->reportid); | |
332 | dev_dbg(dev, "message1:\t0x%x\n", message->message[0]); | |
333 | dev_dbg(dev, "message2:\t0x%x\n", message->message[1]); | |
334 | dev_dbg(dev, "message3:\t0x%x\n", message->message[2]); | |
335 | dev_dbg(dev, "message4:\t0x%x\n", message->message[3]); | |
336 | dev_dbg(dev, "message5:\t0x%x\n", message->message[4]); | |
337 | dev_dbg(dev, "message6:\t0x%x\n", message->message[5]); | |
338 | dev_dbg(dev, "message7:\t0x%x\n", message->message[6]); | |
339 | dev_dbg(dev, "checksum:\t0x%x\n", message->checksum); | |
340 | } | |
341 | ||
7686b108 | 342 | static int mxt_check_bootloader(struct i2c_client *client, |
4cf51c38 JS |
343 | unsigned int state) |
344 | { | |
345 | u8 val; | |
346 | ||
347 | recheck: | |
348 | if (i2c_master_recv(client, &val, 1) != 1) { | |
349 | dev_err(&client->dev, "%s: i2c recv failed\n", __func__); | |
350 | return -EIO; | |
351 | } | |
352 | ||
353 | switch (state) { | |
7686b108 IV |
354 | case MXT_WAITING_BOOTLOAD_CMD: |
355 | case MXT_WAITING_FRAME_DATA: | |
356 | val &= ~MXT_BOOT_STATUS_MASK; | |
4cf51c38 | 357 | break; |
7686b108 IV |
358 | case MXT_FRAME_CRC_PASS: |
359 | if (val == MXT_FRAME_CRC_CHECK) | |
4cf51c38 JS |
360 | goto recheck; |
361 | break; | |
362 | default: | |
363 | return -EINVAL; | |
364 | } | |
365 | ||
366 | if (val != state) { | |
367 | dev_err(&client->dev, "Unvalid bootloader mode state\n"); | |
368 | return -EINVAL; | |
369 | } | |
370 | ||
371 | return 0; | |
372 | } | |
373 | ||
7686b108 | 374 | static int mxt_unlock_bootloader(struct i2c_client *client) |
4cf51c38 JS |
375 | { |
376 | u8 buf[2]; | |
377 | ||
7686b108 IV |
378 | buf[0] = MXT_UNLOCK_CMD_LSB; |
379 | buf[1] = MXT_UNLOCK_CMD_MSB; | |
4cf51c38 JS |
380 | |
381 | if (i2c_master_send(client, buf, 2) != 2) { | |
382 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
383 | return -EIO; | |
384 | } | |
385 | ||
386 | return 0; | |
387 | } | |
388 | ||
7686b108 | 389 | static int mxt_fw_write(struct i2c_client *client, |
4cf51c38 JS |
390 | const u8 *data, unsigned int frame_size) |
391 | { | |
392 | if (i2c_master_send(client, data, frame_size) != frame_size) { | |
393 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
394 | return -EIO; | |
395 | } | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
7686b108 | 400 | static int __mxt_read_reg(struct i2c_client *client, |
4cf51c38 JS |
401 | u16 reg, u16 len, void *val) |
402 | { | |
403 | struct i2c_msg xfer[2]; | |
404 | u8 buf[2]; | |
405 | ||
406 | buf[0] = reg & 0xff; | |
407 | buf[1] = (reg >> 8) & 0xff; | |
408 | ||
409 | /* Write register */ | |
410 | xfer[0].addr = client->addr; | |
411 | xfer[0].flags = 0; | |
412 | xfer[0].len = 2; | |
413 | xfer[0].buf = buf; | |
414 | ||
415 | /* Read data */ | |
416 | xfer[1].addr = client->addr; | |
417 | xfer[1].flags = I2C_M_RD; | |
418 | xfer[1].len = len; | |
419 | xfer[1].buf = val; | |
420 | ||
421 | if (i2c_transfer(client->adapter, xfer, 2) != 2) { | |
422 | dev_err(&client->dev, "%s: i2c transfer failed\n", __func__); | |
423 | return -EIO; | |
424 | } | |
425 | ||
426 | return 0; | |
427 | } | |
428 | ||
7686b108 | 429 | static int mxt_read_reg(struct i2c_client *client, u16 reg, u8 *val) |
4cf51c38 | 430 | { |
7686b108 | 431 | return __mxt_read_reg(client, reg, 1, val); |
4cf51c38 JS |
432 | } |
433 | ||
7686b108 | 434 | static int mxt_write_reg(struct i2c_client *client, u16 reg, u8 val) |
4cf51c38 JS |
435 | { |
436 | u8 buf[3]; | |
437 | ||
438 | buf[0] = reg & 0xff; | |
439 | buf[1] = (reg >> 8) & 0xff; | |
440 | buf[2] = val; | |
441 | ||
442 | if (i2c_master_send(client, buf, 3) != 3) { | |
443 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
444 | return -EIO; | |
445 | } | |
446 | ||
447 | return 0; | |
448 | } | |
449 | ||
7686b108 | 450 | static int mxt_read_object_table(struct i2c_client *client, |
4cf51c38 JS |
451 | u16 reg, u8 *object_buf) |
452 | { | |
7686b108 | 453 | return __mxt_read_reg(client, reg, MXT_OBJECT_SIZE, |
4cf51c38 JS |
454 | object_buf); |
455 | } | |
456 | ||
7686b108 IV |
457 | static struct mxt_object * |
458 | mxt_get_object(struct mxt_data *data, u8 type) | |
4cf51c38 | 459 | { |
7686b108 | 460 | struct mxt_object *object; |
4cf51c38 JS |
461 | int i; |
462 | ||
463 | for (i = 0; i < data->info.object_num; i++) { | |
464 | object = data->object_table + i; | |
465 | if (object->type == type) | |
466 | return object; | |
467 | } | |
468 | ||
469 | dev_err(&data->client->dev, "Invalid object type\n"); | |
470 | return NULL; | |
471 | } | |
472 | ||
7686b108 IV |
473 | static int mxt_read_message(struct mxt_data *data, |
474 | struct mxt_message *message) | |
4cf51c38 | 475 | { |
7686b108 | 476 | struct mxt_object *object; |
4cf51c38 JS |
477 | u16 reg; |
478 | ||
81c88a71 | 479 | object = mxt_get_object(data, MXT_GEN_MESSAGE_T5); |
4cf51c38 JS |
480 | if (!object) |
481 | return -EINVAL; | |
482 | ||
483 | reg = object->start_address; | |
7686b108 IV |
484 | return __mxt_read_reg(data->client, reg, |
485 | sizeof(struct mxt_message), message); | |
4cf51c38 JS |
486 | } |
487 | ||
7686b108 | 488 | static int mxt_read_object(struct mxt_data *data, |
4cf51c38 JS |
489 | u8 type, u8 offset, u8 *val) |
490 | { | |
7686b108 | 491 | struct mxt_object *object; |
4cf51c38 JS |
492 | u16 reg; |
493 | ||
7686b108 | 494 | object = mxt_get_object(data, type); |
4cf51c38 JS |
495 | if (!object) |
496 | return -EINVAL; | |
497 | ||
498 | reg = object->start_address; | |
7686b108 | 499 | return __mxt_read_reg(data->client, reg + offset, 1, val); |
4cf51c38 JS |
500 | } |
501 | ||
7686b108 | 502 | static int mxt_write_object(struct mxt_data *data, |
4cf51c38 JS |
503 | u8 type, u8 offset, u8 val) |
504 | { | |
7686b108 | 505 | struct mxt_object *object; |
4cf51c38 JS |
506 | u16 reg; |
507 | ||
7686b108 | 508 | object = mxt_get_object(data, type); |
4cf51c38 JS |
509 | if (!object) |
510 | return -EINVAL; | |
511 | ||
512 | reg = object->start_address; | |
7686b108 | 513 | return mxt_write_reg(data->client, reg + offset, val); |
4cf51c38 JS |
514 | } |
515 | ||
7686b108 | 516 | static void mxt_input_report(struct mxt_data *data, int single_id) |
4cf51c38 | 517 | { |
7686b108 | 518 | struct mxt_finger *finger = data->finger; |
4cf51c38 JS |
519 | struct input_dev *input_dev = data->input_dev; |
520 | int status = finger[single_id].status; | |
521 | int finger_num = 0; | |
522 | int id; | |
523 | ||
7686b108 | 524 | for (id = 0; id < MXT_MAX_FINGER; id++) { |
4cf51c38 JS |
525 | if (!finger[id].status) |
526 | continue; | |
527 | ||
8b86c1c2 JS |
528 | input_mt_slot(input_dev, id); |
529 | input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, | |
530 | finger[id].status != MXT_RELEASE); | |
4cf51c38 | 531 | |
8b86c1c2 | 532 | if (finger[id].status != MXT_RELEASE) { |
4cf51c38 | 533 | finger_num++; |
8b86c1c2 JS |
534 | input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, |
535 | finger[id].area); | |
536 | input_report_abs(input_dev, ABS_MT_POSITION_X, | |
537 | finger[id].x); | |
538 | input_report_abs(input_dev, ABS_MT_POSITION_Y, | |
539 | finger[id].y); | |
28ac2933 YS |
540 | input_report_abs(input_dev, ABS_MT_PRESSURE, |
541 | finger[id].pressure); | |
8b86c1c2 JS |
542 | } else { |
543 | finger[id].status = 0; | |
544 | } | |
4cf51c38 JS |
545 | } |
546 | ||
547 | input_report_key(input_dev, BTN_TOUCH, finger_num > 0); | |
548 | ||
7686b108 | 549 | if (status != MXT_RELEASE) { |
4cf51c38 JS |
550 | input_report_abs(input_dev, ABS_X, finger[single_id].x); |
551 | input_report_abs(input_dev, ABS_Y, finger[single_id].y); | |
28ac2933 YS |
552 | input_report_abs(input_dev, |
553 | ABS_PRESSURE, finger[single_id].pressure); | |
4cf51c38 JS |
554 | } |
555 | ||
556 | input_sync(input_dev); | |
557 | } | |
558 | ||
7686b108 IV |
559 | static void mxt_input_touchevent(struct mxt_data *data, |
560 | struct mxt_message *message, int id) | |
4cf51c38 | 561 | { |
7686b108 | 562 | struct mxt_finger *finger = data->finger; |
4cf51c38 JS |
563 | struct device *dev = &data->client->dev; |
564 | u8 status = message->message[0]; | |
565 | int x; | |
566 | int y; | |
567 | int area; | |
28ac2933 | 568 | int pressure; |
4cf51c38 JS |
569 | |
570 | /* Check the touch is present on the screen */ | |
7686b108 IV |
571 | if (!(status & MXT_DETECT)) { |
572 | if (status & MXT_RELEASE) { | |
4cf51c38 JS |
573 | dev_dbg(dev, "[%d] released\n", id); |
574 | ||
7686b108 IV |
575 | finger[id].status = MXT_RELEASE; |
576 | mxt_input_report(data, id); | |
4cf51c38 JS |
577 | } |
578 | return; | |
579 | } | |
580 | ||
581 | /* Check only AMP detection */ | |
7686b108 | 582 | if (!(status & (MXT_PRESS | MXT_MOVE))) |
4cf51c38 JS |
583 | return; |
584 | ||
910d8051 JS |
585 | x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf); |
586 | y = (message->message[2] << 4) | ((message->message[3] & 0xf)); | |
587 | if (data->max_x < 1024) | |
588 | x = x >> 2; | |
589 | if (data->max_y < 1024) | |
590 | y = y >> 2; | |
591 | ||
4cf51c38 | 592 | area = message->message[4]; |
28ac2933 | 593 | pressure = message->message[5]; |
4cf51c38 JS |
594 | |
595 | dev_dbg(dev, "[%d] %s x: %d, y: %d, area: %d\n", id, | |
7686b108 | 596 | status & MXT_MOVE ? "moved" : "pressed", |
4cf51c38 JS |
597 | x, y, area); |
598 | ||
7686b108 IV |
599 | finger[id].status = status & MXT_MOVE ? |
600 | MXT_MOVE : MXT_PRESS; | |
4cf51c38 JS |
601 | finger[id].x = x; |
602 | finger[id].y = y; | |
603 | finger[id].area = area; | |
28ac2933 | 604 | finger[id].pressure = pressure; |
4cf51c38 | 605 | |
7686b108 | 606 | mxt_input_report(data, id); |
4cf51c38 JS |
607 | } |
608 | ||
7686b108 | 609 | static irqreturn_t mxt_interrupt(int irq, void *dev_id) |
4cf51c38 | 610 | { |
7686b108 IV |
611 | struct mxt_data *data = dev_id; |
612 | struct mxt_message message; | |
613 | struct mxt_object *object; | |
4cf51c38 JS |
614 | struct device *dev = &data->client->dev; |
615 | int id; | |
616 | u8 reportid; | |
617 | u8 max_reportid; | |
618 | u8 min_reportid; | |
619 | ||
620 | do { | |
7686b108 | 621 | if (mxt_read_message(data, &message)) { |
4cf51c38 JS |
622 | dev_err(dev, "Failed to read message\n"); |
623 | goto end; | |
624 | } | |
625 | ||
626 | reportid = message.reportid; | |
627 | ||
81c88a71 IV |
628 | /* whether reportid is thing of MXT_TOUCH_MULTI_T9 */ |
629 | object = mxt_get_object(data, MXT_TOUCH_MULTI_T9); | |
4cf51c38 JS |
630 | if (!object) |
631 | goto end; | |
632 | ||
633 | max_reportid = object->max_reportid; | |
634 | min_reportid = max_reportid - object->num_report_ids + 1; | |
635 | id = reportid - min_reportid; | |
636 | ||
637 | if (reportid >= min_reportid && reportid <= max_reportid) | |
7686b108 | 638 | mxt_input_touchevent(data, &message, id); |
4cf51c38 | 639 | else |
7686b108 | 640 | mxt_dump_message(dev, &message); |
4cf51c38 JS |
641 | } while (reportid != 0xff); |
642 | ||
643 | end: | |
644 | return IRQ_HANDLED; | |
645 | } | |
646 | ||
7686b108 | 647 | static int mxt_check_reg_init(struct mxt_data *data) |
4cf51c38 | 648 | { |
71749f5c | 649 | const struct mxt_platform_data *pdata = data->pdata; |
7686b108 | 650 | struct mxt_object *object; |
4cf51c38 JS |
651 | struct device *dev = &data->client->dev; |
652 | int index = 0; | |
71749f5c | 653 | int i, j, config_offset; |
4cf51c38 | 654 | |
71749f5c IV |
655 | if (!pdata->config) { |
656 | dev_dbg(dev, "No cfg data defined, skipping reg init\n"); | |
657 | return 0; | |
4cf51c38 JS |
658 | } |
659 | ||
660 | for (i = 0; i < data->info.object_num; i++) { | |
661 | object = data->object_table + i; | |
662 | ||
7686b108 | 663 | if (!mxt_object_writable(object->type)) |
4cf51c38 JS |
664 | continue; |
665 | ||
a93d4f2d IV |
666 | for (j = 0; |
667 | j < (object->size + 1) * (object->instances + 1); | |
668 | j++) { | |
71749f5c IV |
669 | config_offset = index + j; |
670 | if (config_offset > pdata->config_length) { | |
671 | dev_err(dev, "Not enough config data!\n"); | |
672 | return -EINVAL; | |
673 | } | |
7686b108 | 674 | mxt_write_object(data, object->type, j, |
71749f5c IV |
675 | pdata->config[config_offset]); |
676 | } | |
a93d4f2d | 677 | index += (object->size + 1) * (object->instances + 1); |
4cf51c38 JS |
678 | } |
679 | ||
680 | return 0; | |
681 | } | |
682 | ||
7686b108 | 683 | static int mxt_make_highchg(struct mxt_data *data) |
4cf51c38 JS |
684 | { |
685 | struct device *dev = &data->client->dev; | |
26cdb1ae | 686 | struct mxt_message message; |
4cf51c38 JS |
687 | int count = 10; |
688 | int error; | |
4cf51c38 JS |
689 | |
690 | /* Read dummy message to make high CHG pin */ | |
691 | do { | |
26cdb1ae | 692 | error = mxt_read_message(data, &message); |
4cf51c38 JS |
693 | if (error) |
694 | return error; | |
26cdb1ae | 695 | } while (message.reportid != 0xff && --count); |
4cf51c38 JS |
696 | |
697 | if (!count) { | |
698 | dev_err(dev, "CHG pin isn't cleared\n"); | |
699 | return -EBUSY; | |
700 | } | |
701 | ||
702 | return 0; | |
703 | } | |
704 | ||
7686b108 | 705 | static void mxt_handle_pdata(struct mxt_data *data) |
4cf51c38 | 706 | { |
7686b108 | 707 | const struct mxt_platform_data *pdata = data->pdata; |
4cf51c38 JS |
708 | u8 voltage; |
709 | ||
710 | /* Set touchscreen lines */ | |
81c88a71 | 711 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_XSIZE, |
4cf51c38 | 712 | pdata->x_line); |
81c88a71 | 713 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_YSIZE, |
4cf51c38 JS |
714 | pdata->y_line); |
715 | ||
716 | /* Set touchscreen orient */ | |
81c88a71 | 717 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_ORIENT, |
4cf51c38 JS |
718 | pdata->orient); |
719 | ||
720 | /* Set touchscreen burst length */ | |
81c88a71 | 721 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 722 | MXT_TOUCH_BLEN, pdata->blen); |
4cf51c38 JS |
723 | |
724 | /* Set touchscreen threshold */ | |
81c88a71 | 725 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 726 | MXT_TOUCH_TCHTHR, pdata->threshold); |
4cf51c38 JS |
727 | |
728 | /* Set touchscreen resolution */ | |
81c88a71 | 729 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 730 | MXT_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff); |
81c88a71 | 731 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 732 | MXT_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8); |
81c88a71 | 733 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 734 | MXT_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff); |
81c88a71 | 735 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 736 | MXT_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8); |
4cf51c38 JS |
737 | |
738 | /* Set touchscreen voltage */ | |
979a72da | 739 | if (pdata->voltage) { |
7686b108 IV |
740 | if (pdata->voltage < MXT_VOLTAGE_DEFAULT) { |
741 | voltage = (MXT_VOLTAGE_DEFAULT - pdata->voltage) / | |
742 | MXT_VOLTAGE_STEP; | |
4cf51c38 JS |
743 | voltage = 0xff - voltage + 1; |
744 | } else | |
7686b108 IV |
745 | voltage = (pdata->voltage - MXT_VOLTAGE_DEFAULT) / |
746 | MXT_VOLTAGE_STEP; | |
4cf51c38 | 747 | |
81c88a71 | 748 | mxt_write_object(data, MXT_SPT_CTECONFIG_T28, |
7686b108 | 749 | MXT_CTE_VOLTAGE, voltage); |
4cf51c38 JS |
750 | } |
751 | } | |
752 | ||
7686b108 | 753 | static int mxt_get_info(struct mxt_data *data) |
4cf51c38 JS |
754 | { |
755 | struct i2c_client *client = data->client; | |
7686b108 | 756 | struct mxt_info *info = &data->info; |
4cf51c38 JS |
757 | int error; |
758 | u8 val; | |
759 | ||
7686b108 | 760 | error = mxt_read_reg(client, MXT_FAMILY_ID, &val); |
4cf51c38 JS |
761 | if (error) |
762 | return error; | |
763 | info->family_id = val; | |
764 | ||
7686b108 | 765 | error = mxt_read_reg(client, MXT_VARIANT_ID, &val); |
4cf51c38 JS |
766 | if (error) |
767 | return error; | |
768 | info->variant_id = val; | |
769 | ||
7686b108 | 770 | error = mxt_read_reg(client, MXT_VERSION, &val); |
4cf51c38 JS |
771 | if (error) |
772 | return error; | |
773 | info->version = val; | |
774 | ||
7686b108 | 775 | error = mxt_read_reg(client, MXT_BUILD, &val); |
4cf51c38 JS |
776 | if (error) |
777 | return error; | |
778 | info->build = val; | |
779 | ||
7686b108 | 780 | error = mxt_read_reg(client, MXT_OBJECT_NUM, &val); |
4cf51c38 JS |
781 | if (error) |
782 | return error; | |
783 | info->object_num = val; | |
784 | ||
785 | return 0; | |
786 | } | |
787 | ||
7686b108 | 788 | static int mxt_get_object_table(struct mxt_data *data) |
4cf51c38 JS |
789 | { |
790 | int error; | |
791 | int i; | |
792 | u16 reg; | |
793 | u8 reportid = 0; | |
7686b108 | 794 | u8 buf[MXT_OBJECT_SIZE]; |
4cf51c38 JS |
795 | |
796 | for (i = 0; i < data->info.object_num; i++) { | |
7686b108 | 797 | struct mxt_object *object = data->object_table + i; |
4cf51c38 | 798 | |
7686b108 IV |
799 | reg = MXT_OBJECT_START + MXT_OBJECT_SIZE * i; |
800 | error = mxt_read_object_table(data->client, reg, buf); | |
4cf51c38 JS |
801 | if (error) |
802 | return error; | |
803 | ||
804 | object->type = buf[0]; | |
805 | object->start_address = (buf[2] << 8) | buf[1]; | |
806 | object->size = buf[3]; | |
807 | object->instances = buf[4]; | |
808 | object->num_report_ids = buf[5]; | |
809 | ||
810 | if (object->num_report_ids) { | |
811 | reportid += object->num_report_ids * | |
812 | (object->instances + 1); | |
813 | object->max_reportid = reportid; | |
814 | } | |
815 | } | |
816 | ||
817 | return 0; | |
818 | } | |
819 | ||
7686b108 | 820 | static int mxt_initialize(struct mxt_data *data) |
4cf51c38 JS |
821 | { |
822 | struct i2c_client *client = data->client; | |
7686b108 | 823 | struct mxt_info *info = &data->info; |
4cf51c38 JS |
824 | int error; |
825 | u8 val; | |
826 | ||
7686b108 | 827 | error = mxt_get_info(data); |
4cf51c38 JS |
828 | if (error) |
829 | return error; | |
830 | ||
831 | data->object_table = kcalloc(info->object_num, | |
7686b108 | 832 | sizeof(struct mxt_object), |
4cf51c38 JS |
833 | GFP_KERNEL); |
834 | if (!data->object_table) { | |
835 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
836 | return -ENOMEM; | |
837 | } | |
838 | ||
839 | /* Get object table information */ | |
7686b108 | 840 | error = mxt_get_object_table(data); |
4cf51c38 JS |
841 | if (error) |
842 | return error; | |
843 | ||
844 | /* Check register init values */ | |
7686b108 | 845 | error = mxt_check_reg_init(data); |
4cf51c38 JS |
846 | if (error) |
847 | return error; | |
848 | ||
7686b108 | 849 | mxt_handle_pdata(data); |
4cf51c38 JS |
850 | |
851 | /* Backup to memory */ | |
81c88a71 | 852 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
853 | MXT_COMMAND_BACKUPNV, |
854 | MXT_BACKUP_VALUE); | |
855 | msleep(MXT_BACKUP_TIME); | |
4cf51c38 JS |
856 | |
857 | /* Soft reset */ | |
81c88a71 | 858 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
859 | MXT_COMMAND_RESET, 1); |
860 | msleep(MXT_RESET_TIME); | |
4cf51c38 JS |
861 | |
862 | /* Update matrix size at info struct */ | |
7686b108 | 863 | error = mxt_read_reg(client, MXT_MATRIX_X_SIZE, &val); |
4cf51c38 JS |
864 | if (error) |
865 | return error; | |
866 | info->matrix_xsize = val; | |
867 | ||
7686b108 | 868 | error = mxt_read_reg(client, MXT_MATRIX_Y_SIZE, &val); |
4cf51c38 JS |
869 | if (error) |
870 | return error; | |
871 | info->matrix_ysize = val; | |
872 | ||
873 | dev_info(&client->dev, | |
874 | "Family ID: %d Variant ID: %d Version: %d Build: %d\n", | |
875 | info->family_id, info->variant_id, info->version, | |
876 | info->build); | |
877 | ||
878 | dev_info(&client->dev, | |
879 | "Matrix X Size: %d Matrix Y Size: %d Object Num: %d\n", | |
880 | info->matrix_xsize, info->matrix_ysize, | |
881 | info->object_num); | |
882 | ||
883 | return 0; | |
884 | } | |
885 | ||
910d8051 JS |
886 | static void mxt_calc_resolution(struct mxt_data *data) |
887 | { | |
888 | unsigned int max_x = data->pdata->x_size - 1; | |
889 | unsigned int max_y = data->pdata->y_size - 1; | |
890 | ||
891 | if (data->pdata->orient & MXT_XY_SWITCH) { | |
892 | data->max_x = max_y; | |
893 | data->max_y = max_x; | |
894 | } else { | |
895 | data->max_x = max_x; | |
896 | data->max_y = max_y; | |
897 | } | |
898 | } | |
899 | ||
7686b108 | 900 | static ssize_t mxt_object_show(struct device *dev, |
4cf51c38 JS |
901 | struct device_attribute *attr, char *buf) |
902 | { | |
7686b108 IV |
903 | struct mxt_data *data = dev_get_drvdata(dev); |
904 | struct mxt_object *object; | |
4cf51c38 JS |
905 | int count = 0; |
906 | int i, j; | |
907 | int error; | |
908 | u8 val; | |
909 | ||
910 | for (i = 0; i < data->info.object_num; i++) { | |
911 | object = data->object_table + i; | |
912 | ||
626af861 DK |
913 | count += snprintf(buf + count, PAGE_SIZE - count, |
914 | "Object[%d] (Type %d)\n", | |
4cf51c38 | 915 | i + 1, object->type); |
626af861 DK |
916 | if (count >= PAGE_SIZE) |
917 | return PAGE_SIZE - 1; | |
4cf51c38 | 918 | |
7686b108 | 919 | if (!mxt_object_readable(object->type)) { |
626af861 DK |
920 | count += snprintf(buf + count, PAGE_SIZE - count, |
921 | "\n"); | |
922 | if (count >= PAGE_SIZE) | |
923 | return PAGE_SIZE - 1; | |
4cf51c38 JS |
924 | continue; |
925 | } | |
926 | ||
927 | for (j = 0; j < object->size + 1; j++) { | |
7686b108 | 928 | error = mxt_read_object(data, |
4cf51c38 JS |
929 | object->type, j, &val); |
930 | if (error) | |
931 | return error; | |
932 | ||
626af861 DK |
933 | count += snprintf(buf + count, PAGE_SIZE - count, |
934 | "\t[%2d]: %02x (%d)\n", j, val, val); | |
935 | if (count >= PAGE_SIZE) | |
936 | return PAGE_SIZE - 1; | |
4cf51c38 JS |
937 | } |
938 | ||
626af861 DK |
939 | count += snprintf(buf + count, PAGE_SIZE - count, "\n"); |
940 | if (count >= PAGE_SIZE) | |
941 | return PAGE_SIZE - 1; | |
4cf51c38 JS |
942 | } |
943 | ||
944 | return count; | |
945 | } | |
946 | ||
7686b108 | 947 | static int mxt_load_fw(struct device *dev, const char *fn) |
4cf51c38 | 948 | { |
7686b108 | 949 | struct mxt_data *data = dev_get_drvdata(dev); |
4cf51c38 JS |
950 | struct i2c_client *client = data->client; |
951 | const struct firmware *fw = NULL; | |
952 | unsigned int frame_size; | |
953 | unsigned int pos = 0; | |
954 | int ret; | |
955 | ||
956 | ret = request_firmware(&fw, fn, dev); | |
957 | if (ret) { | |
958 | dev_err(dev, "Unable to open firmware %s\n", fn); | |
959 | return ret; | |
960 | } | |
961 | ||
962 | /* Change to the bootloader mode */ | |
81c88a71 | 963 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
964 | MXT_COMMAND_RESET, MXT_BOOT_VALUE); |
965 | msleep(MXT_RESET_TIME); | |
4cf51c38 JS |
966 | |
967 | /* Change to slave address of bootloader */ | |
7686b108 IV |
968 | if (client->addr == MXT_APP_LOW) |
969 | client->addr = MXT_BOOT_LOW; | |
4cf51c38 | 970 | else |
7686b108 | 971 | client->addr = MXT_BOOT_HIGH; |
4cf51c38 | 972 | |
7686b108 | 973 | ret = mxt_check_bootloader(client, MXT_WAITING_BOOTLOAD_CMD); |
4cf51c38 JS |
974 | if (ret) |
975 | goto out; | |
976 | ||
977 | /* Unlock bootloader */ | |
7686b108 | 978 | mxt_unlock_bootloader(client); |
4cf51c38 JS |
979 | |
980 | while (pos < fw->size) { | |
7686b108 IV |
981 | ret = mxt_check_bootloader(client, |
982 | MXT_WAITING_FRAME_DATA); | |
4cf51c38 JS |
983 | if (ret) |
984 | goto out; | |
985 | ||
986 | frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1)); | |
987 | ||
988 | /* We should add 2 at frame size as the the firmware data is not | |
989 | * included the CRC bytes. | |
990 | */ | |
991 | frame_size += 2; | |
992 | ||
993 | /* Write one frame to device */ | |
7686b108 | 994 | mxt_fw_write(client, fw->data + pos, frame_size); |
4cf51c38 | 995 | |
7686b108 IV |
996 | ret = mxt_check_bootloader(client, |
997 | MXT_FRAME_CRC_PASS); | |
4cf51c38 JS |
998 | if (ret) |
999 | goto out; | |
1000 | ||
1001 | pos += frame_size; | |
1002 | ||
1003 | dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size); | |
1004 | } | |
1005 | ||
1006 | out: | |
1007 | release_firmware(fw); | |
1008 | ||
1009 | /* Change to slave address of application */ | |
7686b108 IV |
1010 | if (client->addr == MXT_BOOT_LOW) |
1011 | client->addr = MXT_APP_LOW; | |
4cf51c38 | 1012 | else |
7686b108 | 1013 | client->addr = MXT_APP_HIGH; |
4cf51c38 JS |
1014 | |
1015 | return ret; | |
1016 | } | |
1017 | ||
7686b108 | 1018 | static ssize_t mxt_update_fw_store(struct device *dev, |
4cf51c38 JS |
1019 | struct device_attribute *attr, |
1020 | const char *buf, size_t count) | |
1021 | { | |
7686b108 | 1022 | struct mxt_data *data = dev_get_drvdata(dev); |
4cf51c38 JS |
1023 | int error; |
1024 | ||
4cf51c38 JS |
1025 | disable_irq(data->irq); |
1026 | ||
7686b108 | 1027 | error = mxt_load_fw(dev, MXT_FW_NAME); |
4cf51c38 JS |
1028 | if (error) { |
1029 | dev_err(dev, "The firmware update failed(%d)\n", error); | |
1030 | count = error; | |
1031 | } else { | |
1032 | dev_dbg(dev, "The firmware update succeeded\n"); | |
1033 | ||
1034 | /* Wait for reset */ | |
7686b108 | 1035 | msleep(MXT_FWRESET_TIME); |
4cf51c38 JS |
1036 | |
1037 | kfree(data->object_table); | |
1038 | data->object_table = NULL; | |
1039 | ||
7686b108 | 1040 | mxt_initialize(data); |
4cf51c38 JS |
1041 | } |
1042 | ||
1043 | enable_irq(data->irq); | |
1044 | ||
08960a07 IV |
1045 | error = mxt_make_highchg(data); |
1046 | if (error) | |
1047 | return error; | |
1048 | ||
4cf51c38 JS |
1049 | return count; |
1050 | } | |
1051 | ||
7686b108 IV |
1052 | static DEVICE_ATTR(object, 0444, mxt_object_show, NULL); |
1053 | static DEVICE_ATTR(update_fw, 0664, NULL, mxt_update_fw_store); | |
4cf51c38 | 1054 | |
7686b108 | 1055 | static struct attribute *mxt_attrs[] = { |
4cf51c38 JS |
1056 | &dev_attr_object.attr, |
1057 | &dev_attr_update_fw.attr, | |
1058 | NULL | |
1059 | }; | |
1060 | ||
7686b108 IV |
1061 | static const struct attribute_group mxt_attr_group = { |
1062 | .attrs = mxt_attrs, | |
4cf51c38 JS |
1063 | }; |
1064 | ||
7686b108 | 1065 | static void mxt_start(struct mxt_data *data) |
4cf51c38 JS |
1066 | { |
1067 | /* Touch enable */ | |
7686b108 | 1068 | mxt_write_object(data, |
81c88a71 | 1069 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0x83); |
4cf51c38 JS |
1070 | } |
1071 | ||
7686b108 | 1072 | static void mxt_stop(struct mxt_data *data) |
4cf51c38 JS |
1073 | { |
1074 | /* Touch disable */ | |
7686b108 | 1075 | mxt_write_object(data, |
81c88a71 | 1076 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0); |
4cf51c38 JS |
1077 | } |
1078 | ||
7686b108 | 1079 | static int mxt_input_open(struct input_dev *dev) |
4cf51c38 | 1080 | { |
7686b108 | 1081 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1082 | |
7686b108 | 1083 | mxt_start(data); |
4cf51c38 JS |
1084 | |
1085 | return 0; | |
1086 | } | |
1087 | ||
7686b108 | 1088 | static void mxt_input_close(struct input_dev *dev) |
4cf51c38 | 1089 | { |
7686b108 | 1090 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1091 | |
7686b108 | 1092 | mxt_stop(data); |
4cf51c38 JS |
1093 | } |
1094 | ||
7686b108 | 1095 | static int __devinit mxt_probe(struct i2c_client *client, |
4cf51c38 JS |
1096 | const struct i2c_device_id *id) |
1097 | { | |
919ed895 | 1098 | const struct mxt_platform_data *pdata = client->dev.platform_data; |
7686b108 | 1099 | struct mxt_data *data; |
4cf51c38 JS |
1100 | struct input_dev *input_dev; |
1101 | int error; | |
1102 | ||
919ed895 | 1103 | if (!pdata) |
4cf51c38 JS |
1104 | return -EINVAL; |
1105 | ||
7686b108 | 1106 | data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL); |
4cf51c38 JS |
1107 | input_dev = input_allocate_device(); |
1108 | if (!data || !input_dev) { | |
1109 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
1110 | error = -ENOMEM; | |
1111 | goto err_free_mem; | |
1112 | } | |
1113 | ||
7686b108 | 1114 | input_dev->name = "Atmel maXTouch Touchscreen"; |
4cf51c38 JS |
1115 | input_dev->id.bustype = BUS_I2C; |
1116 | input_dev->dev.parent = &client->dev; | |
7686b108 IV |
1117 | input_dev->open = mxt_input_open; |
1118 | input_dev->close = mxt_input_close; | |
4cf51c38 | 1119 | |
910d8051 JS |
1120 | data->client = client; |
1121 | data->input_dev = input_dev; | |
1122 | data->pdata = pdata; | |
1123 | data->irq = client->irq; | |
1124 | ||
1125 | mxt_calc_resolution(data); | |
1126 | ||
4cf51c38 JS |
1127 | __set_bit(EV_ABS, input_dev->evbit); |
1128 | __set_bit(EV_KEY, input_dev->evbit); | |
1129 | __set_bit(BTN_TOUCH, input_dev->keybit); | |
1130 | ||
1131 | /* For single touch */ | |
1132 | input_set_abs_params(input_dev, ABS_X, | |
910d8051 | 1133 | 0, data->max_x, 0, 0); |
4cf51c38 | 1134 | input_set_abs_params(input_dev, ABS_Y, |
910d8051 | 1135 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1136 | input_set_abs_params(input_dev, ABS_PRESSURE, |
1137 | 0, 255, 0, 0); | |
4cf51c38 JS |
1138 | |
1139 | /* For multi touch */ | |
8b86c1c2 | 1140 | input_mt_init_slots(input_dev, MXT_MAX_FINGER); |
4cf51c38 | 1141 | input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, |
7686b108 | 1142 | 0, MXT_MAX_AREA, 0, 0); |
4cf51c38 | 1143 | input_set_abs_params(input_dev, ABS_MT_POSITION_X, |
910d8051 | 1144 | 0, data->max_x, 0, 0); |
4cf51c38 | 1145 | input_set_abs_params(input_dev, ABS_MT_POSITION_Y, |
910d8051 | 1146 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1147 | input_set_abs_params(input_dev, ABS_MT_PRESSURE, |
1148 | 0, 255, 0, 0); | |
4cf51c38 JS |
1149 | |
1150 | input_set_drvdata(input_dev, data); | |
4cf51c38 JS |
1151 | i2c_set_clientdata(client, data); |
1152 | ||
7686b108 | 1153 | error = mxt_initialize(data); |
4cf51c38 JS |
1154 | if (error) |
1155 | goto err_free_object; | |
1156 | ||
7686b108 | 1157 | error = request_threaded_irq(client->irq, NULL, mxt_interrupt, |
919ed895 | 1158 | pdata->irqflags, client->dev.driver->name, data); |
4cf51c38 JS |
1159 | if (error) { |
1160 | dev_err(&client->dev, "Failed to register interrupt\n"); | |
1161 | goto err_free_object; | |
1162 | } | |
1163 | ||
08960a07 IV |
1164 | error = mxt_make_highchg(data); |
1165 | if (error) | |
1166 | goto err_free_irq; | |
1167 | ||
4cf51c38 JS |
1168 | error = input_register_device(input_dev); |
1169 | if (error) | |
1170 | goto err_free_irq; | |
1171 | ||
7686b108 | 1172 | error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 JS |
1173 | if (error) |
1174 | goto err_unregister_device; | |
1175 | ||
1176 | return 0; | |
1177 | ||
1178 | err_unregister_device: | |
1179 | input_unregister_device(input_dev); | |
1180 | input_dev = NULL; | |
1181 | err_free_irq: | |
1182 | free_irq(client->irq, data); | |
1183 | err_free_object: | |
1184 | kfree(data->object_table); | |
1185 | err_free_mem: | |
1186 | input_free_device(input_dev); | |
1187 | kfree(data); | |
1188 | return error; | |
1189 | } | |
1190 | ||
7686b108 | 1191 | static int __devexit mxt_remove(struct i2c_client *client) |
4cf51c38 | 1192 | { |
7686b108 | 1193 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 | 1194 | |
7686b108 | 1195 | sysfs_remove_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 JS |
1196 | free_irq(data->irq, data); |
1197 | input_unregister_device(data->input_dev); | |
1198 | kfree(data->object_table); | |
1199 | kfree(data); | |
1200 | ||
1201 | return 0; | |
1202 | } | |
1203 | ||
1204 | #ifdef CONFIG_PM | |
7686b108 | 1205 | static int mxt_suspend(struct device *dev) |
4cf51c38 | 1206 | { |
8b5fce06 | 1207 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1208 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1209 | struct input_dev *input_dev = data->input_dev; |
1210 | ||
1211 | mutex_lock(&input_dev->mutex); | |
1212 | ||
1213 | if (input_dev->users) | |
7686b108 | 1214 | mxt_stop(data); |
4cf51c38 JS |
1215 | |
1216 | mutex_unlock(&input_dev->mutex); | |
1217 | ||
1218 | return 0; | |
1219 | } | |
1220 | ||
7686b108 | 1221 | static int mxt_resume(struct device *dev) |
4cf51c38 | 1222 | { |
8b5fce06 | 1223 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1224 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1225 | struct input_dev *input_dev = data->input_dev; |
1226 | ||
1227 | /* Soft reset */ | |
81c88a71 | 1228 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 | 1229 | MXT_COMMAND_RESET, 1); |
4cf51c38 | 1230 | |
7686b108 | 1231 | msleep(MXT_RESET_TIME); |
4cf51c38 JS |
1232 | |
1233 | mutex_lock(&input_dev->mutex); | |
1234 | ||
1235 | if (input_dev->users) | |
7686b108 | 1236 | mxt_start(data); |
4cf51c38 JS |
1237 | |
1238 | mutex_unlock(&input_dev->mutex); | |
1239 | ||
1240 | return 0; | |
1241 | } | |
8b5fce06 | 1242 | |
7686b108 IV |
1243 | static const struct dev_pm_ops mxt_pm_ops = { |
1244 | .suspend = mxt_suspend, | |
1245 | .resume = mxt_resume, | |
8b5fce06 | 1246 | }; |
4cf51c38 JS |
1247 | #endif |
1248 | ||
7686b108 | 1249 | static const struct i2c_device_id mxt_id[] = { |
4cf51c38 | 1250 | { "qt602240_ts", 0 }, |
7686b108 | 1251 | { "atmel_mxt_ts", 0 }, |
46ee2a05 | 1252 | { "mXT224", 0 }, |
4cf51c38 JS |
1253 | { } |
1254 | }; | |
7686b108 | 1255 | MODULE_DEVICE_TABLE(i2c, mxt_id); |
4cf51c38 | 1256 | |
7686b108 | 1257 | static struct i2c_driver mxt_driver = { |
4cf51c38 | 1258 | .driver = { |
7686b108 | 1259 | .name = "atmel_mxt_ts", |
4cf51c38 | 1260 | .owner = THIS_MODULE, |
8b5fce06 | 1261 | #ifdef CONFIG_PM |
7686b108 | 1262 | .pm = &mxt_pm_ops, |
8b5fce06 | 1263 | #endif |
4cf51c38 | 1264 | }, |
7686b108 IV |
1265 | .probe = mxt_probe, |
1266 | .remove = __devexit_p(mxt_remove), | |
1267 | .id_table = mxt_id, | |
4cf51c38 JS |
1268 | }; |
1269 | ||
7686b108 | 1270 | static int __init mxt_init(void) |
4cf51c38 | 1271 | { |
7686b108 | 1272 | return i2c_add_driver(&mxt_driver); |
4cf51c38 JS |
1273 | } |
1274 | ||
7686b108 | 1275 | static void __exit mxt_exit(void) |
4cf51c38 | 1276 | { |
7686b108 | 1277 | i2c_del_driver(&mxt_driver); |
4cf51c38 JS |
1278 | } |
1279 | ||
7686b108 IV |
1280 | module_init(mxt_init); |
1281 | module_exit(mxt_exit); | |
4cf51c38 JS |
1282 | |
1283 | /* Module information */ | |
1284 | MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); | |
7686b108 | 1285 | MODULE_DESCRIPTION("Atmel maXTouch Touchscreen driver"); |
4cf51c38 | 1286 | MODULE_LICENSE("GPL"); |