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 */ | |
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 */ | |
b2e459b8 | 198 | #define MXT_UNGRIP (1 << 0) |
7686b108 IV |
199 | #define MXT_SUPPRESS (1 << 1) |
200 | #define MXT_AMP (1 << 2) | |
201 | #define MXT_VECTOR (1 << 3) | |
202 | #define MXT_MOVE (1 << 4) | |
203 | #define MXT_RELEASE (1 << 5) | |
204 | #define MXT_PRESS (1 << 6) | |
205 | #define MXT_DETECT (1 << 7) | |
4cf51c38 | 206 | |
910d8051 JS |
207 | /* Touch orient bits */ |
208 | #define MXT_XY_SWITCH (1 << 0) | |
209 | #define MXT_X_INVERT (1 << 1) | |
210 | #define MXT_Y_INVERT (1 << 2) | |
211 | ||
4cf51c38 | 212 | /* Touchscreen absolute values */ |
7686b108 | 213 | #define MXT_MAX_AREA 0xff |
4cf51c38 | 214 | |
7686b108 | 215 | #define MXT_MAX_FINGER 10 |
4cf51c38 | 216 | |
7686b108 | 217 | struct mxt_info { |
4cf51c38 JS |
218 | u8 family_id; |
219 | u8 variant_id; | |
220 | u8 version; | |
221 | u8 build; | |
222 | u8 matrix_xsize; | |
223 | u8 matrix_ysize; | |
224 | u8 object_num; | |
225 | }; | |
226 | ||
7686b108 | 227 | struct mxt_object { |
4cf51c38 JS |
228 | u8 type; |
229 | u16 start_address; | |
230 | u8 size; | |
231 | u8 instances; | |
232 | u8 num_report_ids; | |
233 | ||
234 | /* to map object and message */ | |
235 | u8 max_reportid; | |
236 | }; | |
237 | ||
7686b108 | 238 | struct mxt_message { |
4cf51c38 JS |
239 | u8 reportid; |
240 | u8 message[7]; | |
4cf51c38 JS |
241 | }; |
242 | ||
4cf51c38 | 243 | /* Each client has this additional data */ |
7686b108 | 244 | struct mxt_data { |
4cf51c38 JS |
245 | struct i2c_client *client; |
246 | struct input_dev *input_dev; | |
ec02ac2b | 247 | char phys[64]; /* device physical location */ |
7686b108 IV |
248 | const struct mxt_platform_data *pdata; |
249 | struct mxt_object *object_table; | |
250 | struct mxt_info info; | |
4cf51c38 | 251 | unsigned int irq; |
910d8051 JS |
252 | unsigned int max_x; |
253 | unsigned int max_y; | |
4cf51c38 JS |
254 | }; |
255 | ||
7686b108 | 256 | static bool mxt_object_readable(unsigned int type) |
4cf51c38 JS |
257 | { |
258 | switch (type) { | |
81c88a71 IV |
259 | case MXT_GEN_COMMAND_T6: |
260 | case MXT_GEN_POWER_T7: | |
261 | case MXT_GEN_ACQUIRE_T8: | |
262 | case MXT_GEN_DATASOURCE_T53: | |
263 | case MXT_TOUCH_MULTI_T9: | |
264 | case MXT_TOUCH_KEYARRAY_T15: | |
265 | case MXT_TOUCH_PROXIMITY_T23: | |
266 | case MXT_TOUCH_PROXKEY_T52: | |
267 | case MXT_PROCI_GRIPFACE_T20: | |
268 | case MXT_PROCG_NOISE_T22: | |
269 | case MXT_PROCI_ONETOUCH_T24: | |
270 | case MXT_PROCI_TWOTOUCH_T27: | |
271 | case MXT_PROCI_GRIP_T40: | |
272 | case MXT_PROCI_PALM_T41: | |
273 | case MXT_PROCI_TOUCHSUPPRESSION_T42: | |
274 | case MXT_PROCI_STYLUS_T47: | |
275 | case MXT_PROCG_NOISESUPPRESSION_T48: | |
276 | case MXT_SPT_COMMSCONFIG_T18: | |
277 | case MXT_SPT_GPIOPWM_T19: | |
278 | case MXT_SPT_SELFTEST_T25: | |
279 | case MXT_SPT_CTECONFIG_T28: | |
280 | case MXT_SPT_USERDATA_T38: | |
281 | case MXT_SPT_DIGITIZER_T43: | |
282 | case MXT_SPT_CTECONFIG_T46: | |
4cf51c38 JS |
283 | return true; |
284 | default: | |
285 | return false; | |
286 | } | |
287 | } | |
288 | ||
7686b108 | 289 | static bool mxt_object_writable(unsigned int type) |
4cf51c38 JS |
290 | { |
291 | switch (type) { | |
81c88a71 IV |
292 | case MXT_GEN_COMMAND_T6: |
293 | case MXT_GEN_POWER_T7: | |
294 | case MXT_GEN_ACQUIRE_T8: | |
295 | case MXT_TOUCH_MULTI_T9: | |
296 | case MXT_TOUCH_KEYARRAY_T15: | |
297 | case MXT_TOUCH_PROXIMITY_T23: | |
298 | case MXT_TOUCH_PROXKEY_T52: | |
299 | case MXT_PROCI_GRIPFACE_T20: | |
300 | case MXT_PROCG_NOISE_T22: | |
301 | case MXT_PROCI_ONETOUCH_T24: | |
302 | case MXT_PROCI_TWOTOUCH_T27: | |
303 | case MXT_PROCI_GRIP_T40: | |
304 | case MXT_PROCI_PALM_T41: | |
305 | case MXT_PROCI_TOUCHSUPPRESSION_T42: | |
306 | case MXT_PROCI_STYLUS_T47: | |
307 | case MXT_PROCG_NOISESUPPRESSION_T48: | |
308 | case MXT_SPT_COMMSCONFIG_T18: | |
309 | case MXT_SPT_GPIOPWM_T19: | |
310 | case MXT_SPT_SELFTEST_T25: | |
311 | case MXT_SPT_CTECONFIG_T28: | |
312 | case MXT_SPT_DIGITIZER_T43: | |
313 | case MXT_SPT_CTECONFIG_T46: | |
4cf51c38 JS |
314 | return true; |
315 | default: | |
316 | return false; | |
317 | } | |
318 | } | |
319 | ||
7686b108 | 320 | static void mxt_dump_message(struct device *dev, |
6ee3dbf9 | 321 | struct mxt_message *message) |
4cf51c38 | 322 | { |
6ee3dbf9 DK |
323 | dev_dbg(dev, "reportid: %u\tmessage: %02x %02x %02x %02x %02x %02x %02x\n", |
324 | message->reportid, message->message[0], message->message[1], | |
325 | message->message[2], message->message[3], message->message[4], | |
326 | message->message[5], message->message[6]); | |
4cf51c38 JS |
327 | } |
328 | ||
7686b108 | 329 | static int mxt_check_bootloader(struct i2c_client *client, |
4cf51c38 JS |
330 | unsigned int state) |
331 | { | |
332 | u8 val; | |
333 | ||
334 | recheck: | |
335 | if (i2c_master_recv(client, &val, 1) != 1) { | |
336 | dev_err(&client->dev, "%s: i2c recv failed\n", __func__); | |
337 | return -EIO; | |
338 | } | |
339 | ||
340 | switch (state) { | |
7686b108 IV |
341 | case MXT_WAITING_BOOTLOAD_CMD: |
342 | case MXT_WAITING_FRAME_DATA: | |
343 | val &= ~MXT_BOOT_STATUS_MASK; | |
4cf51c38 | 344 | break; |
7686b108 IV |
345 | case MXT_FRAME_CRC_PASS: |
346 | if (val == MXT_FRAME_CRC_CHECK) | |
4cf51c38 JS |
347 | goto recheck; |
348 | break; | |
349 | default: | |
350 | return -EINVAL; | |
351 | } | |
352 | ||
353 | if (val != state) { | |
354 | dev_err(&client->dev, "Unvalid bootloader mode state\n"); | |
355 | return -EINVAL; | |
356 | } | |
357 | ||
358 | return 0; | |
359 | } | |
360 | ||
7686b108 | 361 | static int mxt_unlock_bootloader(struct i2c_client *client) |
4cf51c38 JS |
362 | { |
363 | u8 buf[2]; | |
364 | ||
7686b108 IV |
365 | buf[0] = MXT_UNLOCK_CMD_LSB; |
366 | buf[1] = MXT_UNLOCK_CMD_MSB; | |
4cf51c38 JS |
367 | |
368 | if (i2c_master_send(client, buf, 2) != 2) { | |
369 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
370 | return -EIO; | |
371 | } | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
7686b108 | 376 | static int mxt_fw_write(struct i2c_client *client, |
4cf51c38 JS |
377 | const u8 *data, unsigned int frame_size) |
378 | { | |
379 | if (i2c_master_send(client, data, frame_size) != frame_size) { | |
380 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
381 | return -EIO; | |
382 | } | |
383 | ||
384 | return 0; | |
385 | } | |
386 | ||
7686b108 | 387 | static int __mxt_read_reg(struct i2c_client *client, |
4cf51c38 JS |
388 | u16 reg, u16 len, void *val) |
389 | { | |
390 | struct i2c_msg xfer[2]; | |
391 | u8 buf[2]; | |
771733e3 | 392 | int ret; |
4cf51c38 JS |
393 | |
394 | buf[0] = reg & 0xff; | |
395 | buf[1] = (reg >> 8) & 0xff; | |
396 | ||
397 | /* Write register */ | |
398 | xfer[0].addr = client->addr; | |
399 | xfer[0].flags = 0; | |
400 | xfer[0].len = 2; | |
401 | xfer[0].buf = buf; | |
402 | ||
403 | /* Read data */ | |
404 | xfer[1].addr = client->addr; | |
405 | xfer[1].flags = I2C_M_RD; | |
406 | xfer[1].len = len; | |
407 | xfer[1].buf = val; | |
408 | ||
771733e3 DK |
409 | ret = i2c_transfer(client->adapter, xfer, 2); |
410 | if (ret == 2) { | |
411 | ret = 0; | |
412 | } else { | |
413 | if (ret >= 0) | |
414 | ret = -EIO; | |
415 | dev_err(&client->dev, "%s: i2c transfer failed (%d)\n", | |
416 | __func__, ret); | |
4cf51c38 JS |
417 | } |
418 | ||
771733e3 | 419 | return ret; |
4cf51c38 JS |
420 | } |
421 | ||
7686b108 | 422 | static int mxt_read_reg(struct i2c_client *client, u16 reg, u8 *val) |
4cf51c38 | 423 | { |
7686b108 | 424 | return __mxt_read_reg(client, reg, 1, val); |
4cf51c38 JS |
425 | } |
426 | ||
9638ab7c DK |
427 | static int __mxt_write_reg(struct i2c_client *client, u16 reg, u16 len, |
428 | const void *val) | |
4cf51c38 | 429 | { |
9638ab7c DK |
430 | u8 *buf; |
431 | size_t count; | |
771733e3 | 432 | int ret; |
4cf51c38 | 433 | |
9638ab7c DK |
434 | count = len + 2; |
435 | buf = kmalloc(count, GFP_KERNEL); | |
436 | if (!buf) | |
437 | return -ENOMEM; | |
438 | ||
4cf51c38 JS |
439 | buf[0] = reg & 0xff; |
440 | buf[1] = (reg >> 8) & 0xff; | |
9638ab7c | 441 | memcpy(&buf[2], val, len); |
4cf51c38 | 442 | |
9638ab7c DK |
443 | ret = i2c_master_send(client, buf, count); |
444 | if (ret == count) { | |
771733e3 DK |
445 | ret = 0; |
446 | } else { | |
447 | if (ret >= 0) | |
448 | ret = -EIO; | |
449 | dev_err(&client->dev, "%s: i2c send failed (%d)\n", | |
450 | __func__, ret); | |
4cf51c38 JS |
451 | } |
452 | ||
9638ab7c | 453 | kfree(buf); |
771733e3 | 454 | return ret; |
4cf51c38 JS |
455 | } |
456 | ||
9638ab7c DK |
457 | static int mxt_write_reg(struct i2c_client *client, u16 reg, u8 val) |
458 | { | |
459 | return __mxt_write_reg(client, reg, 1, &val); | |
460 | } | |
461 | ||
7686b108 | 462 | static int mxt_read_object_table(struct i2c_client *client, |
4cf51c38 JS |
463 | u16 reg, u8 *object_buf) |
464 | { | |
7686b108 | 465 | return __mxt_read_reg(client, reg, MXT_OBJECT_SIZE, |
4cf51c38 JS |
466 | object_buf); |
467 | } | |
468 | ||
7686b108 IV |
469 | static struct mxt_object * |
470 | mxt_get_object(struct mxt_data *data, u8 type) | |
4cf51c38 | 471 | { |
7686b108 | 472 | struct mxt_object *object; |
4cf51c38 JS |
473 | int i; |
474 | ||
475 | for (i = 0; i < data->info.object_num; i++) { | |
476 | object = data->object_table + i; | |
477 | if (object->type == type) | |
478 | return object; | |
479 | } | |
480 | ||
481 | dev_err(&data->client->dev, "Invalid object type\n"); | |
482 | return NULL; | |
483 | } | |
484 | ||
7686b108 IV |
485 | static int mxt_read_message(struct mxt_data *data, |
486 | struct mxt_message *message) | |
4cf51c38 | 487 | { |
7686b108 | 488 | struct mxt_object *object; |
4cf51c38 JS |
489 | u16 reg; |
490 | ||
81c88a71 | 491 | object = mxt_get_object(data, MXT_GEN_MESSAGE_T5); |
4cf51c38 JS |
492 | if (!object) |
493 | return -EINVAL; | |
494 | ||
495 | reg = object->start_address; | |
7686b108 IV |
496 | return __mxt_read_reg(data->client, reg, |
497 | sizeof(struct mxt_message), message); | |
4cf51c38 JS |
498 | } |
499 | ||
7686b108 | 500 | static int mxt_write_object(struct mxt_data *data, |
4cf51c38 JS |
501 | u8 type, u8 offset, u8 val) |
502 | { | |
7686b108 | 503 | struct mxt_object *object; |
4cf51c38 JS |
504 | u16 reg; |
505 | ||
7686b108 | 506 | object = mxt_get_object(data, type); |
d1ff320f | 507 | if (!object || offset >= object->size + 1) |
4cf51c38 JS |
508 | return -EINVAL; |
509 | ||
510 | reg = object->start_address; | |
7686b108 | 511 | return mxt_write_reg(data->client, reg + offset, val); |
4cf51c38 JS |
512 | } |
513 | ||
7686b108 IV |
514 | static void mxt_input_touchevent(struct mxt_data *data, |
515 | struct mxt_message *message, int id) | |
4cf51c38 | 516 | { |
4cf51c38 JS |
517 | struct device *dev = &data->client->dev; |
518 | u8 status = message->message[0]; | |
fba5bc31 | 519 | struct input_dev *input_dev = data->input_dev; |
4cf51c38 JS |
520 | int x; |
521 | int y; | |
522 | int area; | |
28ac2933 | 523 | int pressure; |
4cf51c38 | 524 | |
910d8051 JS |
525 | x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf); |
526 | y = (message->message[2] << 4) | ((message->message[3] & 0xf)); | |
527 | if (data->max_x < 1024) | |
528 | x = x >> 2; | |
529 | if (data->max_y < 1024) | |
530 | y = y >> 2; | |
531 | ||
4cf51c38 | 532 | area = message->message[4]; |
28ac2933 | 533 | pressure = message->message[5]; |
4cf51c38 | 534 | |
b2e459b8 DK |
535 | dev_dbg(dev, |
536 | "[%u] %c%c%c%c%c%c%c%c x: %5u y: %5u area: %3u amp: %3u\n", | |
537 | id, | |
538 | (status & MXT_DETECT) ? 'D' : '.', | |
539 | (status & MXT_PRESS) ? 'P' : '.', | |
540 | (status & MXT_RELEASE) ? 'R' : '.', | |
541 | (status & MXT_MOVE) ? 'M' : '.', | |
542 | (status & MXT_VECTOR) ? 'V' : '.', | |
543 | (status & MXT_AMP) ? 'A' : '.', | |
544 | (status & MXT_SUPPRESS) ? 'S' : '.', | |
545 | (status & MXT_UNGRIP) ? 'U' : '.', | |
546 | x, y, area, pressure); | |
547 | ||
fba5bc31 DK |
548 | input_mt_slot(input_dev, id); |
549 | input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, | |
550 | status & MXT_DETECT); | |
551 | ||
552 | if (status & MXT_DETECT) { | |
553 | input_report_abs(input_dev, ABS_MT_POSITION_X, x); | |
554 | input_report_abs(input_dev, ABS_MT_POSITION_Y, y); | |
555 | input_report_abs(input_dev, ABS_MT_PRESSURE, pressure); | |
556 | input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area); | |
557 | } | |
4cf51c38 | 558 | |
fba5bc31 DK |
559 | input_mt_report_pointer_emulation(input_dev, false); |
560 | input_sync(input_dev); | |
4cf51c38 JS |
561 | } |
562 | ||
7686b108 | 563 | static irqreturn_t mxt_interrupt(int irq, void *dev_id) |
4cf51c38 | 564 | { |
7686b108 IV |
565 | struct mxt_data *data = dev_id; |
566 | struct mxt_message message; | |
567 | struct mxt_object *object; | |
4cf51c38 JS |
568 | struct device *dev = &data->client->dev; |
569 | int id; | |
570 | u8 reportid; | |
571 | u8 max_reportid; | |
572 | u8 min_reportid; | |
573 | ||
574 | do { | |
7686b108 | 575 | if (mxt_read_message(data, &message)) { |
4cf51c38 JS |
576 | dev_err(dev, "Failed to read message\n"); |
577 | goto end; | |
578 | } | |
579 | ||
580 | reportid = message.reportid; | |
581 | ||
81c88a71 IV |
582 | /* whether reportid is thing of MXT_TOUCH_MULTI_T9 */ |
583 | object = mxt_get_object(data, MXT_TOUCH_MULTI_T9); | |
4cf51c38 JS |
584 | if (!object) |
585 | goto end; | |
586 | ||
587 | max_reportid = object->max_reportid; | |
588 | min_reportid = max_reportid - object->num_report_ids + 1; | |
589 | id = reportid - min_reportid; | |
590 | ||
591 | if (reportid >= min_reportid && reportid <= max_reportid) | |
7686b108 | 592 | mxt_input_touchevent(data, &message, id); |
4cf51c38 | 593 | else |
7686b108 | 594 | mxt_dump_message(dev, &message); |
4cf51c38 JS |
595 | } while (reportid != 0xff); |
596 | ||
597 | end: | |
598 | return IRQ_HANDLED; | |
599 | } | |
600 | ||
7686b108 | 601 | static int mxt_check_reg_init(struct mxt_data *data) |
4cf51c38 | 602 | { |
71749f5c | 603 | const struct mxt_platform_data *pdata = data->pdata; |
7686b108 | 604 | struct mxt_object *object; |
4cf51c38 JS |
605 | struct device *dev = &data->client->dev; |
606 | int index = 0; | |
cf94bc09 DK |
607 | int i, size; |
608 | int ret; | |
4cf51c38 | 609 | |
71749f5c IV |
610 | if (!pdata->config) { |
611 | dev_dbg(dev, "No cfg data defined, skipping reg init\n"); | |
612 | return 0; | |
4cf51c38 JS |
613 | } |
614 | ||
615 | for (i = 0; i < data->info.object_num; i++) { | |
616 | object = data->object_table + i; | |
617 | ||
7686b108 | 618 | if (!mxt_object_writable(object->type)) |
4cf51c38 JS |
619 | continue; |
620 | ||
cf94bc09 DK |
621 | size = (object->size + 1) * (object->instances + 1); |
622 | if (index + size > pdata->config_length) { | |
623 | dev_err(dev, "Not enough config data!\n"); | |
624 | return -EINVAL; | |
71749f5c | 625 | } |
cf94bc09 DK |
626 | |
627 | ret = __mxt_write_reg(data->client, object->start_address, | |
628 | size, &pdata->config[index]); | |
629 | if (ret) | |
630 | return ret; | |
631 | index += size; | |
4cf51c38 JS |
632 | } |
633 | ||
634 | return 0; | |
635 | } | |
636 | ||
7686b108 | 637 | static int mxt_make_highchg(struct mxt_data *data) |
4cf51c38 JS |
638 | { |
639 | struct device *dev = &data->client->dev; | |
26cdb1ae | 640 | struct mxt_message message; |
4cf51c38 JS |
641 | int count = 10; |
642 | int error; | |
4cf51c38 JS |
643 | |
644 | /* Read dummy message to make high CHG pin */ | |
645 | do { | |
26cdb1ae | 646 | error = mxt_read_message(data, &message); |
4cf51c38 JS |
647 | if (error) |
648 | return error; | |
26cdb1ae | 649 | } while (message.reportid != 0xff && --count); |
4cf51c38 JS |
650 | |
651 | if (!count) { | |
652 | dev_err(dev, "CHG pin isn't cleared\n"); | |
653 | return -EBUSY; | |
654 | } | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
7686b108 | 659 | static void mxt_handle_pdata(struct mxt_data *data) |
4cf51c38 | 660 | { |
7686b108 | 661 | const struct mxt_platform_data *pdata = data->pdata; |
4cf51c38 JS |
662 | u8 voltage; |
663 | ||
664 | /* Set touchscreen lines */ | |
81c88a71 | 665 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_XSIZE, |
4cf51c38 | 666 | pdata->x_line); |
81c88a71 | 667 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_YSIZE, |
4cf51c38 JS |
668 | pdata->y_line); |
669 | ||
670 | /* Set touchscreen orient */ | |
81c88a71 | 671 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_ORIENT, |
4cf51c38 JS |
672 | pdata->orient); |
673 | ||
674 | /* Set touchscreen burst length */ | |
81c88a71 | 675 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 676 | MXT_TOUCH_BLEN, pdata->blen); |
4cf51c38 JS |
677 | |
678 | /* Set touchscreen threshold */ | |
81c88a71 | 679 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 680 | MXT_TOUCH_TCHTHR, pdata->threshold); |
4cf51c38 JS |
681 | |
682 | /* Set touchscreen resolution */ | |
81c88a71 | 683 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 684 | MXT_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff); |
81c88a71 | 685 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 686 | MXT_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8); |
81c88a71 | 687 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 688 | MXT_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff); |
81c88a71 | 689 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 690 | MXT_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8); |
4cf51c38 JS |
691 | |
692 | /* Set touchscreen voltage */ | |
979a72da | 693 | if (pdata->voltage) { |
7686b108 IV |
694 | if (pdata->voltage < MXT_VOLTAGE_DEFAULT) { |
695 | voltage = (MXT_VOLTAGE_DEFAULT - pdata->voltage) / | |
696 | MXT_VOLTAGE_STEP; | |
4cf51c38 JS |
697 | voltage = 0xff - voltage + 1; |
698 | } else | |
7686b108 IV |
699 | voltage = (pdata->voltage - MXT_VOLTAGE_DEFAULT) / |
700 | MXT_VOLTAGE_STEP; | |
4cf51c38 | 701 | |
81c88a71 | 702 | mxt_write_object(data, MXT_SPT_CTECONFIG_T28, |
7686b108 | 703 | MXT_CTE_VOLTAGE, voltage); |
4cf51c38 JS |
704 | } |
705 | } | |
706 | ||
7686b108 | 707 | static int mxt_get_info(struct mxt_data *data) |
4cf51c38 JS |
708 | { |
709 | struct i2c_client *client = data->client; | |
7686b108 | 710 | struct mxt_info *info = &data->info; |
4cf51c38 | 711 | int error; |
4cf51c38 | 712 | |
23003a84 DK |
713 | /* Read 7-byte info block starting at address 0 */ |
714 | error = __mxt_read_reg(client, MXT_INFO, sizeof(*info), info); | |
4cf51c38 JS |
715 | if (error) |
716 | return error; | |
4cf51c38 JS |
717 | |
718 | return 0; | |
719 | } | |
720 | ||
7686b108 | 721 | static int mxt_get_object_table(struct mxt_data *data) |
4cf51c38 JS |
722 | { |
723 | int error; | |
724 | int i; | |
725 | u16 reg; | |
726 | u8 reportid = 0; | |
7686b108 | 727 | u8 buf[MXT_OBJECT_SIZE]; |
4cf51c38 JS |
728 | |
729 | for (i = 0; i < data->info.object_num; i++) { | |
7686b108 | 730 | struct mxt_object *object = data->object_table + i; |
4cf51c38 | 731 | |
7686b108 IV |
732 | reg = MXT_OBJECT_START + MXT_OBJECT_SIZE * i; |
733 | error = mxt_read_object_table(data->client, reg, buf); | |
4cf51c38 JS |
734 | if (error) |
735 | return error; | |
736 | ||
737 | object->type = buf[0]; | |
738 | object->start_address = (buf[2] << 8) | buf[1]; | |
739 | object->size = buf[3]; | |
740 | object->instances = buf[4]; | |
741 | object->num_report_ids = buf[5]; | |
742 | ||
743 | if (object->num_report_ids) { | |
744 | reportid += object->num_report_ids * | |
745 | (object->instances + 1); | |
746 | object->max_reportid = reportid; | |
747 | } | |
748 | } | |
749 | ||
750 | return 0; | |
751 | } | |
752 | ||
7686b108 | 753 | static int mxt_initialize(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_get_info(data); |
4cf51c38 JS |
761 | if (error) |
762 | return error; | |
763 | ||
764 | data->object_table = kcalloc(info->object_num, | |
7686b108 | 765 | sizeof(struct mxt_object), |
4cf51c38 JS |
766 | GFP_KERNEL); |
767 | if (!data->object_table) { | |
768 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
769 | return -ENOMEM; | |
770 | } | |
771 | ||
772 | /* Get object table information */ | |
7686b108 | 773 | error = mxt_get_object_table(data); |
4cf51c38 JS |
774 | if (error) |
775 | return error; | |
776 | ||
777 | /* Check register init values */ | |
7686b108 | 778 | error = mxt_check_reg_init(data); |
4cf51c38 JS |
779 | if (error) |
780 | return error; | |
781 | ||
7686b108 | 782 | mxt_handle_pdata(data); |
4cf51c38 JS |
783 | |
784 | /* Backup to memory */ | |
81c88a71 | 785 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
786 | MXT_COMMAND_BACKUPNV, |
787 | MXT_BACKUP_VALUE); | |
788 | msleep(MXT_BACKUP_TIME); | |
4cf51c38 JS |
789 | |
790 | /* Soft reset */ | |
81c88a71 | 791 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
792 | MXT_COMMAND_RESET, 1); |
793 | msleep(MXT_RESET_TIME); | |
4cf51c38 JS |
794 | |
795 | /* Update matrix size at info struct */ | |
7686b108 | 796 | error = mxt_read_reg(client, MXT_MATRIX_X_SIZE, &val); |
4cf51c38 JS |
797 | if (error) |
798 | return error; | |
799 | info->matrix_xsize = val; | |
800 | ||
7686b108 | 801 | error = mxt_read_reg(client, MXT_MATRIX_Y_SIZE, &val); |
4cf51c38 JS |
802 | if (error) |
803 | return error; | |
804 | info->matrix_ysize = val; | |
805 | ||
806 | dev_info(&client->dev, | |
e0e0269f DK |
807 | "Family ID: %u Variant ID: %u Major.Minor.Build: %u.%u.%02X\n", |
808 | info->family_id, info->variant_id, info->version >> 4, | |
809 | info->version & 0xf, info->build); | |
4cf51c38 JS |
810 | |
811 | dev_info(&client->dev, | |
e0e0269f | 812 | "Matrix X Size: %u Matrix Y Size: %u Object Num: %u\n", |
4cf51c38 JS |
813 | info->matrix_xsize, info->matrix_ysize, |
814 | info->object_num); | |
815 | ||
816 | return 0; | |
817 | } | |
818 | ||
910d8051 JS |
819 | static void mxt_calc_resolution(struct mxt_data *data) |
820 | { | |
821 | unsigned int max_x = data->pdata->x_size - 1; | |
822 | unsigned int max_y = data->pdata->y_size - 1; | |
823 | ||
824 | if (data->pdata->orient & MXT_XY_SWITCH) { | |
825 | data->max_x = max_y; | |
826 | data->max_y = max_x; | |
827 | } else { | |
828 | data->max_x = max_x; | |
829 | data->max_y = max_y; | |
830 | } | |
831 | } | |
832 | ||
b19fc9ec DK |
833 | /* Firmware Version is returned as Major.Minor.Build */ |
834 | static ssize_t mxt_fw_version_show(struct device *dev, | |
835 | struct device_attribute *attr, char *buf) | |
836 | { | |
837 | struct mxt_data *data = dev_get_drvdata(dev); | |
838 | struct mxt_info *info = &data->info; | |
839 | return scnprintf(buf, PAGE_SIZE, "%u.%u.%02X\n", | |
840 | info->version >> 4, info->version & 0xf, info->build); | |
841 | } | |
842 | ||
843 | /* Hardware Version is returned as FamilyID.VariantID */ | |
844 | static ssize_t mxt_hw_version_show(struct device *dev, | |
845 | struct device_attribute *attr, char *buf) | |
846 | { | |
847 | struct mxt_data *data = dev_get_drvdata(dev); | |
848 | struct mxt_info *info = &data->info; | |
849 | return scnprintf(buf, PAGE_SIZE, "%u.%u\n", | |
850 | info->family_id, info->variant_id); | |
851 | } | |
852 | ||
794eb67e DK |
853 | static ssize_t mxt_show_instance(char *buf, int count, |
854 | struct mxt_object *object, int instance, | |
855 | const u8 *val) | |
856 | { | |
857 | int i; | |
858 | ||
859 | if (object->instances > 0) | |
860 | count += scnprintf(buf + count, PAGE_SIZE - count, | |
861 | "Instance %u\n", instance); | |
862 | ||
863 | for (i = 0; i < object->size + 1; i++) | |
864 | count += scnprintf(buf + count, PAGE_SIZE - count, | |
865 | "\t[%2u]: %02x (%d)\n", i, val[i], val[i]); | |
866 | count += scnprintf(buf + count, PAGE_SIZE - count, "\n"); | |
867 | ||
868 | return count; | |
869 | } | |
870 | ||
7686b108 | 871 | static ssize_t mxt_object_show(struct device *dev, |
4cf51c38 JS |
872 | struct device_attribute *attr, char *buf) |
873 | { | |
7686b108 IV |
874 | struct mxt_data *data = dev_get_drvdata(dev); |
875 | struct mxt_object *object; | |
4cf51c38 JS |
876 | int count = 0; |
877 | int i, j; | |
878 | int error; | |
43a91d51 DK |
879 | u8 *obuf; |
880 | ||
881 | /* Pre-allocate buffer large enough to hold max sized object. */ | |
882 | obuf = kmalloc(256, GFP_KERNEL); | |
883 | if (!obuf) | |
884 | return -ENOMEM; | |
4cf51c38 | 885 | |
43a91d51 | 886 | error = 0; |
4cf51c38 JS |
887 | for (i = 0; i < data->info.object_num; i++) { |
888 | object = data->object_table + i; | |
889 | ||
91630955 | 890 | if (!mxt_object_readable(object->type)) |
4cf51c38 | 891 | continue; |
91630955 DK |
892 | |
893 | count += scnprintf(buf + count, PAGE_SIZE - count, | |
894 | "T%u:\n", object->type); | |
4cf51c38 | 895 | |
794eb67e DK |
896 | for (j = 0; j < object->instances + 1; j++) { |
897 | u16 size = object->size + 1; | |
898 | u16 addr = object->start_address + j * size; | |
43a91d51 | 899 | |
794eb67e DK |
900 | error = __mxt_read_reg(data->client, addr, size, obuf); |
901 | if (error) | |
902 | goto done; | |
4cf51c38 | 903 | |
794eb67e | 904 | count = mxt_show_instance(buf, count, object, j, obuf); |
4cf51c38 | 905 | } |
4cf51c38 JS |
906 | } |
907 | ||
794eb67e | 908 | done: |
43a91d51 DK |
909 | kfree(obuf); |
910 | return error ?: count; | |
4cf51c38 JS |
911 | } |
912 | ||
7686b108 | 913 | static int mxt_load_fw(struct device *dev, const char *fn) |
4cf51c38 | 914 | { |
7686b108 | 915 | struct mxt_data *data = dev_get_drvdata(dev); |
4cf51c38 JS |
916 | struct i2c_client *client = data->client; |
917 | const struct firmware *fw = NULL; | |
918 | unsigned int frame_size; | |
919 | unsigned int pos = 0; | |
920 | int ret; | |
921 | ||
922 | ret = request_firmware(&fw, fn, dev); | |
923 | if (ret) { | |
924 | dev_err(dev, "Unable to open firmware %s\n", fn); | |
925 | return ret; | |
926 | } | |
927 | ||
928 | /* Change to the bootloader mode */ | |
81c88a71 | 929 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
930 | MXT_COMMAND_RESET, MXT_BOOT_VALUE); |
931 | msleep(MXT_RESET_TIME); | |
4cf51c38 JS |
932 | |
933 | /* Change to slave address of bootloader */ | |
7686b108 IV |
934 | if (client->addr == MXT_APP_LOW) |
935 | client->addr = MXT_BOOT_LOW; | |
4cf51c38 | 936 | else |
7686b108 | 937 | client->addr = MXT_BOOT_HIGH; |
4cf51c38 | 938 | |
7686b108 | 939 | ret = mxt_check_bootloader(client, MXT_WAITING_BOOTLOAD_CMD); |
4cf51c38 JS |
940 | if (ret) |
941 | goto out; | |
942 | ||
943 | /* Unlock bootloader */ | |
7686b108 | 944 | mxt_unlock_bootloader(client); |
4cf51c38 JS |
945 | |
946 | while (pos < fw->size) { | |
7686b108 IV |
947 | ret = mxt_check_bootloader(client, |
948 | MXT_WAITING_FRAME_DATA); | |
4cf51c38 JS |
949 | if (ret) |
950 | goto out; | |
951 | ||
952 | frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1)); | |
953 | ||
954 | /* We should add 2 at frame size as the the firmware data is not | |
955 | * included the CRC bytes. | |
956 | */ | |
957 | frame_size += 2; | |
958 | ||
959 | /* Write one frame to device */ | |
7686b108 | 960 | mxt_fw_write(client, fw->data + pos, frame_size); |
4cf51c38 | 961 | |
7686b108 IV |
962 | ret = mxt_check_bootloader(client, |
963 | MXT_FRAME_CRC_PASS); | |
4cf51c38 JS |
964 | if (ret) |
965 | goto out; | |
966 | ||
967 | pos += frame_size; | |
968 | ||
969 | dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size); | |
970 | } | |
971 | ||
972 | out: | |
973 | release_firmware(fw); | |
974 | ||
975 | /* Change to slave address of application */ | |
7686b108 IV |
976 | if (client->addr == MXT_BOOT_LOW) |
977 | client->addr = MXT_APP_LOW; | |
4cf51c38 | 978 | else |
7686b108 | 979 | client->addr = MXT_APP_HIGH; |
4cf51c38 JS |
980 | |
981 | return ret; | |
982 | } | |
983 | ||
7686b108 | 984 | static ssize_t mxt_update_fw_store(struct device *dev, |
4cf51c38 JS |
985 | struct device_attribute *attr, |
986 | const char *buf, size_t count) | |
987 | { | |
7686b108 | 988 | struct mxt_data *data = dev_get_drvdata(dev); |
4cf51c38 JS |
989 | int error; |
990 | ||
4cf51c38 JS |
991 | disable_irq(data->irq); |
992 | ||
7686b108 | 993 | error = mxt_load_fw(dev, MXT_FW_NAME); |
4cf51c38 JS |
994 | if (error) { |
995 | dev_err(dev, "The firmware update failed(%d)\n", error); | |
996 | count = error; | |
997 | } else { | |
998 | dev_dbg(dev, "The firmware update succeeded\n"); | |
999 | ||
1000 | /* Wait for reset */ | |
7686b108 | 1001 | msleep(MXT_FWRESET_TIME); |
4cf51c38 JS |
1002 | |
1003 | kfree(data->object_table); | |
1004 | data->object_table = NULL; | |
1005 | ||
7686b108 | 1006 | mxt_initialize(data); |
4cf51c38 JS |
1007 | } |
1008 | ||
1009 | enable_irq(data->irq); | |
1010 | ||
08960a07 IV |
1011 | error = mxt_make_highchg(data); |
1012 | if (error) | |
1013 | return error; | |
1014 | ||
4cf51c38 JS |
1015 | return count; |
1016 | } | |
1017 | ||
b19fc9ec DK |
1018 | static DEVICE_ATTR(fw_version, S_IRUGO, mxt_fw_version_show, NULL); |
1019 | static DEVICE_ATTR(hw_version, S_IRUGO, mxt_hw_version_show, NULL); | |
71b3e938 DK |
1020 | static DEVICE_ATTR(object, S_IRUGO, mxt_object_show, NULL); |
1021 | static DEVICE_ATTR(update_fw, S_IWUSR, NULL, mxt_update_fw_store); | |
4cf51c38 | 1022 | |
7686b108 | 1023 | static struct attribute *mxt_attrs[] = { |
b19fc9ec DK |
1024 | &dev_attr_fw_version.attr, |
1025 | &dev_attr_hw_version.attr, | |
4cf51c38 JS |
1026 | &dev_attr_object.attr, |
1027 | &dev_attr_update_fw.attr, | |
1028 | NULL | |
1029 | }; | |
1030 | ||
7686b108 IV |
1031 | static const struct attribute_group mxt_attr_group = { |
1032 | .attrs = mxt_attrs, | |
4cf51c38 JS |
1033 | }; |
1034 | ||
7686b108 | 1035 | static void mxt_start(struct mxt_data *data) |
4cf51c38 JS |
1036 | { |
1037 | /* Touch enable */ | |
7686b108 | 1038 | mxt_write_object(data, |
81c88a71 | 1039 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0x83); |
4cf51c38 JS |
1040 | } |
1041 | ||
7686b108 | 1042 | static void mxt_stop(struct mxt_data *data) |
4cf51c38 JS |
1043 | { |
1044 | /* Touch disable */ | |
7686b108 | 1045 | mxt_write_object(data, |
81c88a71 | 1046 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0); |
4cf51c38 JS |
1047 | } |
1048 | ||
7686b108 | 1049 | static int mxt_input_open(struct input_dev *dev) |
4cf51c38 | 1050 | { |
7686b108 | 1051 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1052 | |
7686b108 | 1053 | mxt_start(data); |
4cf51c38 JS |
1054 | |
1055 | return 0; | |
1056 | } | |
1057 | ||
7686b108 | 1058 | static void mxt_input_close(struct input_dev *dev) |
4cf51c38 | 1059 | { |
7686b108 | 1060 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1061 | |
7686b108 | 1062 | mxt_stop(data); |
4cf51c38 JS |
1063 | } |
1064 | ||
7686b108 | 1065 | static int __devinit mxt_probe(struct i2c_client *client, |
4cf51c38 JS |
1066 | const struct i2c_device_id *id) |
1067 | { | |
919ed895 | 1068 | const struct mxt_platform_data *pdata = client->dev.platform_data; |
7686b108 | 1069 | struct mxt_data *data; |
4cf51c38 JS |
1070 | struct input_dev *input_dev; |
1071 | int error; | |
1072 | ||
919ed895 | 1073 | if (!pdata) |
4cf51c38 JS |
1074 | return -EINVAL; |
1075 | ||
7686b108 | 1076 | data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL); |
4cf51c38 JS |
1077 | input_dev = input_allocate_device(); |
1078 | if (!data || !input_dev) { | |
1079 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
1080 | error = -ENOMEM; | |
1081 | goto err_free_mem; | |
1082 | } | |
1083 | ||
7686b108 | 1084 | input_dev->name = "Atmel maXTouch Touchscreen"; |
ec02ac2b DK |
1085 | snprintf(data->phys, sizeof(data->phys), "i2c-%u-%04x/input0", |
1086 | client->adapter->nr, client->addr); | |
1087 | input_dev->phys = data->phys; | |
1088 | ||
4cf51c38 JS |
1089 | input_dev->id.bustype = BUS_I2C; |
1090 | input_dev->dev.parent = &client->dev; | |
7686b108 IV |
1091 | input_dev->open = mxt_input_open; |
1092 | input_dev->close = mxt_input_close; | |
4cf51c38 | 1093 | |
910d8051 JS |
1094 | data->client = client; |
1095 | data->input_dev = input_dev; | |
1096 | data->pdata = pdata; | |
1097 | data->irq = client->irq; | |
1098 | ||
1099 | mxt_calc_resolution(data); | |
1100 | ||
4cf51c38 JS |
1101 | __set_bit(EV_ABS, input_dev->evbit); |
1102 | __set_bit(EV_KEY, input_dev->evbit); | |
1103 | __set_bit(BTN_TOUCH, input_dev->keybit); | |
1104 | ||
1105 | /* For single touch */ | |
1106 | input_set_abs_params(input_dev, ABS_X, | |
910d8051 | 1107 | 0, data->max_x, 0, 0); |
4cf51c38 | 1108 | input_set_abs_params(input_dev, ABS_Y, |
910d8051 | 1109 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1110 | input_set_abs_params(input_dev, ABS_PRESSURE, |
1111 | 0, 255, 0, 0); | |
4cf51c38 JS |
1112 | |
1113 | /* For multi touch */ | |
e1e1658d DK |
1114 | error = input_mt_init_slots(input_dev, MXT_MAX_FINGER); |
1115 | if (error) | |
1116 | goto err_free_mem; | |
4cf51c38 | 1117 | input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, |
7686b108 | 1118 | 0, MXT_MAX_AREA, 0, 0); |
4cf51c38 | 1119 | input_set_abs_params(input_dev, ABS_MT_POSITION_X, |
910d8051 | 1120 | 0, data->max_x, 0, 0); |
4cf51c38 | 1121 | input_set_abs_params(input_dev, ABS_MT_POSITION_Y, |
910d8051 | 1122 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1123 | input_set_abs_params(input_dev, ABS_MT_PRESSURE, |
1124 | 0, 255, 0, 0); | |
4cf51c38 JS |
1125 | |
1126 | input_set_drvdata(input_dev, data); | |
4cf51c38 JS |
1127 | i2c_set_clientdata(client, data); |
1128 | ||
7686b108 | 1129 | error = mxt_initialize(data); |
4cf51c38 JS |
1130 | if (error) |
1131 | goto err_free_object; | |
1132 | ||
7686b108 | 1133 | error = request_threaded_irq(client->irq, NULL, mxt_interrupt, |
c2ef9a1a | 1134 | pdata->irqflags, client->name, data); |
4cf51c38 JS |
1135 | if (error) { |
1136 | dev_err(&client->dev, "Failed to register interrupt\n"); | |
1137 | goto err_free_object; | |
1138 | } | |
1139 | ||
08960a07 IV |
1140 | error = mxt_make_highchg(data); |
1141 | if (error) | |
1142 | goto err_free_irq; | |
1143 | ||
4cf51c38 JS |
1144 | error = input_register_device(input_dev); |
1145 | if (error) | |
1146 | goto err_free_irq; | |
1147 | ||
7686b108 | 1148 | error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 | 1149 | if (error) |
63990038 | 1150 | dev_warn(&client->dev, "error creating sysfs entries.\n"); |
4cf51c38 JS |
1151 | |
1152 | return 0; | |
1153 | ||
4cf51c38 JS |
1154 | err_free_irq: |
1155 | free_irq(client->irq, data); | |
1156 | err_free_object: | |
1157 | kfree(data->object_table); | |
1158 | err_free_mem: | |
1159 | input_free_device(input_dev); | |
1160 | kfree(data); | |
1161 | return error; | |
1162 | } | |
1163 | ||
7686b108 | 1164 | static int __devexit mxt_remove(struct i2c_client *client) |
4cf51c38 | 1165 | { |
7686b108 | 1166 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 | 1167 | |
7686b108 | 1168 | sysfs_remove_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 JS |
1169 | free_irq(data->irq, data); |
1170 | input_unregister_device(data->input_dev); | |
1171 | kfree(data->object_table); | |
1172 | kfree(data); | |
1173 | ||
1174 | return 0; | |
1175 | } | |
1176 | ||
3a73c816 | 1177 | #ifdef CONFIG_PM_SLEEP |
7686b108 | 1178 | static int mxt_suspend(struct device *dev) |
4cf51c38 | 1179 | { |
8b5fce06 | 1180 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1181 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1182 | struct input_dev *input_dev = data->input_dev; |
1183 | ||
1184 | mutex_lock(&input_dev->mutex); | |
1185 | ||
1186 | if (input_dev->users) | |
7686b108 | 1187 | mxt_stop(data); |
4cf51c38 JS |
1188 | |
1189 | mutex_unlock(&input_dev->mutex); | |
1190 | ||
1191 | return 0; | |
1192 | } | |
1193 | ||
7686b108 | 1194 | static int mxt_resume(struct device *dev) |
4cf51c38 | 1195 | { |
8b5fce06 | 1196 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1197 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1198 | struct input_dev *input_dev = data->input_dev; |
1199 | ||
1200 | /* Soft reset */ | |
81c88a71 | 1201 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 | 1202 | MXT_COMMAND_RESET, 1); |
4cf51c38 | 1203 | |
7686b108 | 1204 | msleep(MXT_RESET_TIME); |
4cf51c38 JS |
1205 | |
1206 | mutex_lock(&input_dev->mutex); | |
1207 | ||
1208 | if (input_dev->users) | |
7686b108 | 1209 | mxt_start(data); |
4cf51c38 JS |
1210 | |
1211 | mutex_unlock(&input_dev->mutex); | |
1212 | ||
1213 | return 0; | |
1214 | } | |
4cf51c38 JS |
1215 | #endif |
1216 | ||
3a73c816 DK |
1217 | static SIMPLE_DEV_PM_OPS(mxt_pm_ops, mxt_suspend, mxt_resume); |
1218 | ||
7686b108 | 1219 | static const struct i2c_device_id mxt_id[] = { |
4cf51c38 | 1220 | { "qt602240_ts", 0 }, |
7686b108 | 1221 | { "atmel_mxt_ts", 0 }, |
46ee2a05 | 1222 | { "mXT224", 0 }, |
4cf51c38 JS |
1223 | { } |
1224 | }; | |
7686b108 | 1225 | MODULE_DEVICE_TABLE(i2c, mxt_id); |
4cf51c38 | 1226 | |
7686b108 | 1227 | static struct i2c_driver mxt_driver = { |
4cf51c38 | 1228 | .driver = { |
7686b108 | 1229 | .name = "atmel_mxt_ts", |
4cf51c38 | 1230 | .owner = THIS_MODULE, |
7686b108 | 1231 | .pm = &mxt_pm_ops, |
4cf51c38 | 1232 | }, |
7686b108 IV |
1233 | .probe = mxt_probe, |
1234 | .remove = __devexit_p(mxt_remove), | |
1235 | .id_table = mxt_id, | |
4cf51c38 JS |
1236 | }; |
1237 | ||
1b92c1cf | 1238 | module_i2c_driver(mxt_driver); |
4cf51c38 JS |
1239 | |
1240 | /* Module information */ | |
1241 | MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); | |
7686b108 | 1242 | MODULE_DESCRIPTION("Atmel maXTouch Touchscreen driver"); |
4cf51c38 | 1243 | MODULE_LICENSE("GPL"); |