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 | 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; | |
333e5a9a DK |
228 | u8 size; /* Size of each instance - 1 */ |
229 | u8 instances; /* Number of instances - 1 */ | |
4cf51c38 | 230 | u8 num_report_ids; |
333e5a9a | 231 | } __packed; |
4cf51c38 | 232 | |
7686b108 | 233 | struct mxt_message { |
4cf51c38 JS |
234 | u8 reportid; |
235 | u8 message[7]; | |
4cf51c38 JS |
236 | }; |
237 | ||
4cf51c38 | 238 | /* Each client has this additional data */ |
7686b108 | 239 | struct mxt_data { |
4cf51c38 JS |
240 | struct i2c_client *client; |
241 | struct input_dev *input_dev; | |
ec02ac2b | 242 | char phys[64]; /* device physical location */ |
7686b108 IV |
243 | const struct mxt_platform_data *pdata; |
244 | struct mxt_object *object_table; | |
245 | struct mxt_info info; | |
4cf51c38 | 246 | unsigned int irq; |
910d8051 JS |
247 | unsigned int max_x; |
248 | unsigned int max_y; | |
333e5a9a DK |
249 | |
250 | /* Cached parameters from object table */ | |
fdf80421 | 251 | u8 T6_reportid; |
333e5a9a DK |
252 | u8 T9_reportid_min; |
253 | u8 T9_reportid_max; | |
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 | { |
eb007c86 AS |
323 | dev_dbg(dev, "reportid: %u\tmessage: %*ph\n", |
324 | message->reportid, 7, message->message); | |
4cf51c38 JS |
325 | } |
326 | ||
7686b108 | 327 | static int mxt_check_bootloader(struct i2c_client *client, |
4cf51c38 JS |
328 | unsigned int state) |
329 | { | |
330 | u8 val; | |
331 | ||
332 | recheck: | |
333 | if (i2c_master_recv(client, &val, 1) != 1) { | |
334 | dev_err(&client->dev, "%s: i2c recv failed\n", __func__); | |
335 | return -EIO; | |
336 | } | |
337 | ||
338 | switch (state) { | |
7686b108 IV |
339 | case MXT_WAITING_BOOTLOAD_CMD: |
340 | case MXT_WAITING_FRAME_DATA: | |
341 | val &= ~MXT_BOOT_STATUS_MASK; | |
4cf51c38 | 342 | break; |
7686b108 IV |
343 | case MXT_FRAME_CRC_PASS: |
344 | if (val == MXT_FRAME_CRC_CHECK) | |
4cf51c38 JS |
345 | goto recheck; |
346 | break; | |
347 | default: | |
348 | return -EINVAL; | |
349 | } | |
350 | ||
351 | if (val != state) { | |
352 | dev_err(&client->dev, "Unvalid bootloader mode state\n"); | |
353 | return -EINVAL; | |
354 | } | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
7686b108 | 359 | static int mxt_unlock_bootloader(struct i2c_client *client) |
4cf51c38 JS |
360 | { |
361 | u8 buf[2]; | |
362 | ||
7686b108 IV |
363 | buf[0] = MXT_UNLOCK_CMD_LSB; |
364 | buf[1] = MXT_UNLOCK_CMD_MSB; | |
4cf51c38 JS |
365 | |
366 | if (i2c_master_send(client, buf, 2) != 2) { | |
367 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
368 | return -EIO; | |
369 | } | |
370 | ||
371 | return 0; | |
372 | } | |
373 | ||
7686b108 | 374 | static int mxt_fw_write(struct i2c_client *client, |
4cf51c38 JS |
375 | const u8 *data, unsigned int frame_size) |
376 | { | |
377 | if (i2c_master_send(client, data, frame_size) != frame_size) { | |
378 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
379 | return -EIO; | |
380 | } | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
7686b108 | 385 | static int __mxt_read_reg(struct i2c_client *client, |
4cf51c38 JS |
386 | u16 reg, u16 len, void *val) |
387 | { | |
388 | struct i2c_msg xfer[2]; | |
389 | u8 buf[2]; | |
771733e3 | 390 | int ret; |
4cf51c38 JS |
391 | |
392 | buf[0] = reg & 0xff; | |
393 | buf[1] = (reg >> 8) & 0xff; | |
394 | ||
395 | /* Write register */ | |
396 | xfer[0].addr = client->addr; | |
397 | xfer[0].flags = 0; | |
398 | xfer[0].len = 2; | |
399 | xfer[0].buf = buf; | |
400 | ||
401 | /* Read data */ | |
402 | xfer[1].addr = client->addr; | |
403 | xfer[1].flags = I2C_M_RD; | |
404 | xfer[1].len = len; | |
405 | xfer[1].buf = val; | |
406 | ||
771733e3 DK |
407 | ret = i2c_transfer(client->adapter, xfer, 2); |
408 | if (ret == 2) { | |
409 | ret = 0; | |
410 | } else { | |
411 | if (ret >= 0) | |
412 | ret = -EIO; | |
413 | dev_err(&client->dev, "%s: i2c transfer failed (%d)\n", | |
414 | __func__, ret); | |
4cf51c38 JS |
415 | } |
416 | ||
771733e3 | 417 | return ret; |
4cf51c38 JS |
418 | } |
419 | ||
7686b108 | 420 | static int mxt_read_reg(struct i2c_client *client, u16 reg, u8 *val) |
4cf51c38 | 421 | { |
7686b108 | 422 | return __mxt_read_reg(client, reg, 1, val); |
4cf51c38 JS |
423 | } |
424 | ||
9638ab7c DK |
425 | static int __mxt_write_reg(struct i2c_client *client, u16 reg, u16 len, |
426 | const void *val) | |
4cf51c38 | 427 | { |
9638ab7c DK |
428 | u8 *buf; |
429 | size_t count; | |
771733e3 | 430 | int ret; |
4cf51c38 | 431 | |
9638ab7c DK |
432 | count = len + 2; |
433 | buf = kmalloc(count, GFP_KERNEL); | |
434 | if (!buf) | |
435 | return -ENOMEM; | |
4cf51c38 JS |
436 | |
437 | buf[0] = reg & 0xff; | |
438 | buf[1] = (reg >> 8) & 0xff; | |
9638ab7c | 439 | memcpy(&buf[2], val, len); |
4cf51c38 | 440 | |
9638ab7c DK |
441 | ret = i2c_master_send(client, buf, count); |
442 | if (ret == count) { | |
771733e3 DK |
443 | ret = 0; |
444 | } else { | |
445 | if (ret >= 0) | |
446 | ret = -EIO; | |
447 | dev_err(&client->dev, "%s: i2c send failed (%d)\n", | |
448 | __func__, ret); | |
4cf51c38 JS |
449 | } |
450 | ||
9638ab7c | 451 | kfree(buf); |
771733e3 | 452 | return ret; |
4cf51c38 JS |
453 | } |
454 | ||
9638ab7c | 455 | static int mxt_write_reg(struct i2c_client *client, u16 reg, u8 val) |
4cf51c38 | 456 | { |
9638ab7c | 457 | return __mxt_write_reg(client, reg, 1, &val); |
4cf51c38 JS |
458 | } |
459 | ||
7686b108 IV |
460 | static struct mxt_object * |
461 | mxt_get_object(struct mxt_data *data, u8 type) | |
4cf51c38 | 462 | { |
7686b108 | 463 | struct mxt_object *object; |
4cf51c38 JS |
464 | int i; |
465 | ||
466 | for (i = 0; i < data->info.object_num; i++) { | |
467 | object = data->object_table + i; | |
468 | if (object->type == type) | |
469 | return object; | |
470 | } | |
471 | ||
472 | dev_err(&data->client->dev, "Invalid object type\n"); | |
473 | return NULL; | |
474 | } | |
475 | ||
7686b108 IV |
476 | static int mxt_read_message(struct mxt_data *data, |
477 | struct mxt_message *message) | |
4cf51c38 | 478 | { |
7686b108 | 479 | struct mxt_object *object; |
4cf51c38 JS |
480 | u16 reg; |
481 | ||
81c88a71 | 482 | object = mxt_get_object(data, MXT_GEN_MESSAGE_T5); |
4cf51c38 JS |
483 | if (!object) |
484 | return -EINVAL; | |
485 | ||
486 | reg = object->start_address; | |
7686b108 IV |
487 | return __mxt_read_reg(data->client, reg, |
488 | sizeof(struct mxt_message), message); | |
4cf51c38 JS |
489 | } |
490 | ||
7686b108 | 491 | static int mxt_write_object(struct mxt_data *data, |
4cf51c38 JS |
492 | u8 type, u8 offset, u8 val) |
493 | { | |
7686b108 | 494 | struct mxt_object *object; |
4cf51c38 JS |
495 | u16 reg; |
496 | ||
7686b108 | 497 | object = mxt_get_object(data, type); |
d1ff320f | 498 | if (!object || offset >= object->size + 1) |
4cf51c38 JS |
499 | return -EINVAL; |
500 | ||
501 | reg = object->start_address; | |
7686b108 | 502 | return mxt_write_reg(data->client, reg + offset, val); |
4cf51c38 JS |
503 | } |
504 | ||
7686b108 IV |
505 | static void mxt_input_touchevent(struct mxt_data *data, |
506 | struct mxt_message *message, int id) | |
4cf51c38 | 507 | { |
4cf51c38 JS |
508 | struct device *dev = &data->client->dev; |
509 | u8 status = message->message[0]; | |
fba5bc31 | 510 | struct input_dev *input_dev = data->input_dev; |
4cf51c38 JS |
511 | int x; |
512 | int y; | |
513 | int area; | |
28ac2933 | 514 | int pressure; |
4cf51c38 | 515 | |
910d8051 JS |
516 | x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf); |
517 | y = (message->message[2] << 4) | ((message->message[3] & 0xf)); | |
518 | if (data->max_x < 1024) | |
519 | x = x >> 2; | |
520 | if (data->max_y < 1024) | |
521 | y = y >> 2; | |
522 | ||
4cf51c38 | 523 | area = message->message[4]; |
28ac2933 | 524 | pressure = message->message[5]; |
4cf51c38 | 525 | |
b2e459b8 DK |
526 | dev_dbg(dev, |
527 | "[%u] %c%c%c%c%c%c%c%c x: %5u y: %5u area: %3u amp: %3u\n", | |
528 | id, | |
529 | (status & MXT_DETECT) ? 'D' : '.', | |
530 | (status & MXT_PRESS) ? 'P' : '.', | |
531 | (status & MXT_RELEASE) ? 'R' : '.', | |
532 | (status & MXT_MOVE) ? 'M' : '.', | |
533 | (status & MXT_VECTOR) ? 'V' : '.', | |
534 | (status & MXT_AMP) ? 'A' : '.', | |
535 | (status & MXT_SUPPRESS) ? 'S' : '.', | |
536 | (status & MXT_UNGRIP) ? 'U' : '.', | |
537 | x, y, area, pressure); | |
538 | ||
fba5bc31 DK |
539 | input_mt_slot(input_dev, id); |
540 | input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, | |
541 | status & MXT_DETECT); | |
542 | ||
543 | if (status & MXT_DETECT) { | |
544 | input_report_abs(input_dev, ABS_MT_POSITION_X, x); | |
545 | input_report_abs(input_dev, ABS_MT_POSITION_Y, y); | |
546 | input_report_abs(input_dev, ABS_MT_PRESSURE, pressure); | |
547 | input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area); | |
548 | } | |
4cf51c38 | 549 | } |
4cf51c38 | 550 | |
fdf80421 DK |
551 | static unsigned mxt_extract_T6_csum(const u8 *csum) |
552 | { | |
553 | return csum[0] | (csum[1] << 8) | (csum[2] << 16); | |
554 | } | |
4cf51c38 | 555 | |
04a79181 DK |
556 | static bool mxt_is_T9_message(struct mxt_data *data, struct mxt_message *msg) |
557 | { | |
558 | u8 id = msg->reportid; | |
559 | return (id >= data->T9_reportid_min && id <= data->T9_reportid_max); | |
4cf51c38 JS |
560 | } |
561 | ||
7686b108 | 562 | static irqreturn_t mxt_interrupt(int irq, void *dev_id) |
4cf51c38 | 563 | { |
7686b108 IV |
564 | struct mxt_data *data = dev_id; |
565 | struct mxt_message message; | |
fdf80421 | 566 | const u8 *payload = &message.message[0]; |
4cf51c38 | 567 | struct device *dev = &data->client->dev; |
4cf51c38 | 568 | u8 reportid; |
64464ae8 | 569 | bool update_input = false; |
4cf51c38 JS |
570 | |
571 | do { | |
7686b108 | 572 | if (mxt_read_message(data, &message)) { |
4cf51c38 JS |
573 | dev_err(dev, "Failed to read message\n"); |
574 | goto end; | |
575 | } | |
576 | ||
577 | reportid = message.reportid; | |
578 | ||
fdf80421 DK |
579 | if (reportid == data->T6_reportid) { |
580 | u8 status = payload[0]; | |
581 | unsigned csum = mxt_extract_T6_csum(&payload[1]); | |
582 | dev_dbg(dev, "Status: %02x Config Checksum: %06x\n", | |
583 | status, csum); | |
584 | } else if (mxt_is_T9_message(data, &message)) { | |
585 | int id = reportid - data->T9_reportid_min; | |
7686b108 | 586 | mxt_input_touchevent(data, &message, id); |
64464ae8 DK |
587 | update_input = true; |
588 | } else { | |
7686b108 | 589 | mxt_dump_message(dev, &message); |
64464ae8 | 590 | } |
4cf51c38 JS |
591 | } while (reportid != 0xff); |
592 | ||
64464ae8 DK |
593 | if (update_input) { |
594 | input_mt_report_pointer_emulation(data->input_dev, false); | |
595 | input_sync(data->input_dev); | |
596 | } | |
597 | ||
4cf51c38 JS |
598 | end: |
599 | return IRQ_HANDLED; | |
600 | } | |
601 | ||
7686b108 | 602 | static int mxt_check_reg_init(struct mxt_data *data) |
4cf51c38 | 603 | { |
71749f5c | 604 | const struct mxt_platform_data *pdata = data->pdata; |
7686b108 | 605 | struct mxt_object *object; |
4cf51c38 JS |
606 | struct device *dev = &data->client->dev; |
607 | int index = 0; | |
cf94bc09 DK |
608 | int i, size; |
609 | int ret; | |
4cf51c38 | 610 | |
71749f5c IV |
611 | if (!pdata->config) { |
612 | dev_dbg(dev, "No cfg data defined, skipping reg init\n"); | |
613 | return 0; | |
4cf51c38 JS |
614 | } |
615 | ||
616 | for (i = 0; i < data->info.object_num; i++) { | |
617 | object = data->object_table + i; | |
618 | ||
7686b108 | 619 | if (!mxt_object_writable(object->type)) |
4cf51c38 JS |
620 | continue; |
621 | ||
cf94bc09 DK |
622 | size = (object->size + 1) * (object->instances + 1); |
623 | if (index + size > pdata->config_length) { | |
624 | dev_err(dev, "Not enough config data!\n"); | |
625 | return -EINVAL; | |
71749f5c | 626 | } |
cf94bc09 DK |
627 | |
628 | ret = __mxt_write_reg(data->client, object->start_address, | |
629 | size, &pdata->config[index]); | |
630 | if (ret) | |
631 | return ret; | |
632 | index += size; | |
4cf51c38 JS |
633 | } |
634 | ||
635 | return 0; | |
636 | } | |
637 | ||
7686b108 | 638 | static int mxt_make_highchg(struct mxt_data *data) |
4cf51c38 JS |
639 | { |
640 | struct device *dev = &data->client->dev; | |
26cdb1ae | 641 | struct mxt_message message; |
4cf51c38 JS |
642 | int count = 10; |
643 | int error; | |
4cf51c38 JS |
644 | |
645 | /* Read dummy message to make high CHG pin */ | |
646 | do { | |
26cdb1ae | 647 | error = mxt_read_message(data, &message); |
4cf51c38 JS |
648 | if (error) |
649 | return error; | |
26cdb1ae | 650 | } while (message.reportid != 0xff && --count); |
4cf51c38 JS |
651 | |
652 | if (!count) { | |
653 | dev_err(dev, "CHG pin isn't cleared\n"); | |
654 | return -EBUSY; | |
655 | } | |
656 | ||
657 | return 0; | |
658 | } | |
659 | ||
7686b108 | 660 | static void mxt_handle_pdata(struct mxt_data *data) |
4cf51c38 | 661 | { |
7686b108 | 662 | const struct mxt_platform_data *pdata = data->pdata; |
4cf51c38 JS |
663 | u8 voltage; |
664 | ||
665 | /* Set touchscreen lines */ | |
81c88a71 | 666 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_XSIZE, |
4cf51c38 | 667 | pdata->x_line); |
81c88a71 | 668 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_YSIZE, |
4cf51c38 JS |
669 | pdata->y_line); |
670 | ||
671 | /* Set touchscreen orient */ | |
81c88a71 | 672 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, MXT_TOUCH_ORIENT, |
4cf51c38 JS |
673 | pdata->orient); |
674 | ||
675 | /* Set touchscreen burst length */ | |
81c88a71 | 676 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 677 | MXT_TOUCH_BLEN, pdata->blen); |
4cf51c38 JS |
678 | |
679 | /* Set touchscreen threshold */ | |
81c88a71 | 680 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 681 | MXT_TOUCH_TCHTHR, pdata->threshold); |
4cf51c38 JS |
682 | |
683 | /* Set touchscreen resolution */ | |
81c88a71 | 684 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 685 | MXT_TOUCH_XRANGE_LSB, (pdata->x_size - 1) & 0xff); |
81c88a71 | 686 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 687 | MXT_TOUCH_XRANGE_MSB, (pdata->x_size - 1) >> 8); |
81c88a71 | 688 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 689 | MXT_TOUCH_YRANGE_LSB, (pdata->y_size - 1) & 0xff); |
81c88a71 | 690 | mxt_write_object(data, MXT_TOUCH_MULTI_T9, |
7686b108 | 691 | MXT_TOUCH_YRANGE_MSB, (pdata->y_size - 1) >> 8); |
4cf51c38 JS |
692 | |
693 | /* Set touchscreen voltage */ | |
979a72da | 694 | if (pdata->voltage) { |
7686b108 IV |
695 | if (pdata->voltage < MXT_VOLTAGE_DEFAULT) { |
696 | voltage = (MXT_VOLTAGE_DEFAULT - pdata->voltage) / | |
697 | MXT_VOLTAGE_STEP; | |
4cf51c38 JS |
698 | voltage = 0xff - voltage + 1; |
699 | } else | |
7686b108 IV |
700 | voltage = (pdata->voltage - MXT_VOLTAGE_DEFAULT) / |
701 | MXT_VOLTAGE_STEP; | |
4cf51c38 | 702 | |
81c88a71 | 703 | mxt_write_object(data, MXT_SPT_CTECONFIG_T28, |
7686b108 | 704 | MXT_CTE_VOLTAGE, voltage); |
4cf51c38 JS |
705 | } |
706 | } | |
707 | ||
7686b108 | 708 | static int mxt_get_info(struct mxt_data *data) |
4cf51c38 JS |
709 | { |
710 | struct i2c_client *client = data->client; | |
7686b108 | 711 | struct mxt_info *info = &data->info; |
4cf51c38 | 712 | int error; |
4cf51c38 | 713 | |
23003a84 DK |
714 | /* Read 7-byte info block starting at address 0 */ |
715 | error = __mxt_read_reg(client, MXT_INFO, sizeof(*info), info); | |
4cf51c38 JS |
716 | if (error) |
717 | return error; | |
4cf51c38 JS |
718 | |
719 | return 0; | |
720 | } | |
721 | ||
7686b108 | 722 | static int mxt_get_object_table(struct mxt_data *data) |
4cf51c38 | 723 | { |
333e5a9a DK |
724 | struct i2c_client *client = data->client; |
725 | size_t table_size; | |
4cf51c38 JS |
726 | int error; |
727 | int i; | |
333e5a9a DK |
728 | u8 reportid; |
729 | ||
730 | table_size = data->info.object_num * sizeof(struct mxt_object); | |
731 | error = __mxt_read_reg(client, MXT_OBJECT_START, table_size, | |
732 | data->object_table); | |
733 | if (error) | |
734 | return error; | |
4cf51c38 | 735 | |
333e5a9a DK |
736 | /* Valid Report IDs start counting from 1 */ |
737 | reportid = 1; | |
4cf51c38 | 738 | for (i = 0; i < data->info.object_num; i++) { |
7686b108 | 739 | struct mxt_object *object = data->object_table + i; |
333e5a9a | 740 | u8 min_id, max_id; |
4cf51c38 | 741 | |
333e5a9a | 742 | le16_to_cpus(&object->start_address); |
4cf51c38 JS |
743 | |
744 | if (object->num_report_ids) { | |
333e5a9a | 745 | min_id = reportid; |
4cf51c38 JS |
746 | reportid += object->num_report_ids * |
747 | (object->instances + 1); | |
333e5a9a DK |
748 | max_id = reportid - 1; |
749 | } else { | |
750 | min_id = 0; | |
751 | max_id = 0; | |
752 | } | |
753 | ||
754 | dev_dbg(&data->client->dev, | |
755 | "Type %2d Start %3d Size %3d Instances %2d ReportIDs %3u : %3u\n", | |
756 | object->type, object->start_address, object->size + 1, | |
757 | object->instances + 1, min_id, max_id); | |
758 | ||
759 | switch (object->type) { | |
fdf80421 DK |
760 | case MXT_GEN_COMMAND_T6: |
761 | data->T6_reportid = min_id; | |
762 | break; | |
333e5a9a DK |
763 | case MXT_TOUCH_MULTI_T9: |
764 | data->T9_reportid_min = min_id; | |
765 | data->T9_reportid_max = max_id; | |
766 | break; | |
4cf51c38 JS |
767 | } |
768 | } | |
769 | ||
770 | return 0; | |
771 | } | |
772 | ||
7d4fa100 DK |
773 | static void mxt_free_object_table(struct mxt_data *data) |
774 | { | |
775 | kfree(data->object_table); | |
776 | data->object_table = NULL; | |
fdf80421 | 777 | data->T6_reportid = 0; |
333e5a9a DK |
778 | data->T9_reportid_min = 0; |
779 | data->T9_reportid_max = 0; | |
fdf80421 | 780 | |
7d4fa100 DK |
781 | } |
782 | ||
7686b108 | 783 | static int mxt_initialize(struct mxt_data *data) |
4cf51c38 JS |
784 | { |
785 | struct i2c_client *client = data->client; | |
7686b108 | 786 | struct mxt_info *info = &data->info; |
4cf51c38 JS |
787 | int error; |
788 | u8 val; | |
789 | ||
7686b108 | 790 | error = mxt_get_info(data); |
4cf51c38 JS |
791 | if (error) |
792 | return error; | |
793 | ||
794 | data->object_table = kcalloc(info->object_num, | |
7686b108 | 795 | sizeof(struct mxt_object), |
4cf51c38 JS |
796 | GFP_KERNEL); |
797 | if (!data->object_table) { | |
798 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
799 | return -ENOMEM; | |
800 | } | |
801 | ||
802 | /* Get object table information */ | |
7686b108 | 803 | error = mxt_get_object_table(data); |
4cf51c38 | 804 | if (error) |
7d4fa100 | 805 | goto err_free_object_table; |
4cf51c38 JS |
806 | |
807 | /* Check register init values */ | |
7686b108 | 808 | error = mxt_check_reg_init(data); |
4cf51c38 | 809 | if (error) |
7d4fa100 | 810 | goto err_free_object_table; |
4cf51c38 | 811 | |
7686b108 | 812 | mxt_handle_pdata(data); |
4cf51c38 JS |
813 | |
814 | /* Backup to memory */ | |
81c88a71 | 815 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
816 | MXT_COMMAND_BACKUPNV, |
817 | MXT_BACKUP_VALUE); | |
818 | msleep(MXT_BACKUP_TIME); | |
4cf51c38 JS |
819 | |
820 | /* Soft reset */ | |
81c88a71 | 821 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
822 | MXT_COMMAND_RESET, 1); |
823 | msleep(MXT_RESET_TIME); | |
4cf51c38 JS |
824 | |
825 | /* Update matrix size at info struct */ | |
7686b108 | 826 | error = mxt_read_reg(client, MXT_MATRIX_X_SIZE, &val); |
4cf51c38 | 827 | if (error) |
7d4fa100 | 828 | goto err_free_object_table; |
4cf51c38 JS |
829 | info->matrix_xsize = val; |
830 | ||
7686b108 | 831 | error = mxt_read_reg(client, MXT_MATRIX_Y_SIZE, &val); |
4cf51c38 | 832 | if (error) |
7d4fa100 | 833 | goto err_free_object_table; |
4cf51c38 JS |
834 | info->matrix_ysize = val; |
835 | ||
836 | dev_info(&client->dev, | |
e0e0269f DK |
837 | "Family ID: %u Variant ID: %u Major.Minor.Build: %u.%u.%02X\n", |
838 | info->family_id, info->variant_id, info->version >> 4, | |
839 | info->version & 0xf, info->build); | |
4cf51c38 JS |
840 | |
841 | dev_info(&client->dev, | |
e0e0269f | 842 | "Matrix X Size: %u Matrix Y Size: %u Object Num: %u\n", |
4cf51c38 JS |
843 | info->matrix_xsize, info->matrix_ysize, |
844 | info->object_num); | |
845 | ||
846 | return 0; | |
7d4fa100 DK |
847 | |
848 | err_free_object_table: | |
849 | mxt_free_object_table(data); | |
850 | return error; | |
4cf51c38 JS |
851 | } |
852 | ||
910d8051 JS |
853 | static void mxt_calc_resolution(struct mxt_data *data) |
854 | { | |
855 | unsigned int max_x = data->pdata->x_size - 1; | |
856 | unsigned int max_y = data->pdata->y_size - 1; | |
857 | ||
858 | if (data->pdata->orient & MXT_XY_SWITCH) { | |
859 | data->max_x = max_y; | |
860 | data->max_y = max_x; | |
861 | } else { | |
862 | data->max_x = max_x; | |
863 | data->max_y = max_y; | |
864 | } | |
865 | } | |
866 | ||
b19fc9ec DK |
867 | /* Firmware Version is returned as Major.Minor.Build */ |
868 | static ssize_t mxt_fw_version_show(struct device *dev, | |
869 | struct device_attribute *attr, char *buf) | |
870 | { | |
871 | struct mxt_data *data = dev_get_drvdata(dev); | |
872 | struct mxt_info *info = &data->info; | |
873 | return scnprintf(buf, PAGE_SIZE, "%u.%u.%02X\n", | |
874 | info->version >> 4, info->version & 0xf, info->build); | |
875 | } | |
876 | ||
877 | /* Hardware Version is returned as FamilyID.VariantID */ | |
878 | static ssize_t mxt_hw_version_show(struct device *dev, | |
879 | struct device_attribute *attr, char *buf) | |
880 | { | |
881 | struct mxt_data *data = dev_get_drvdata(dev); | |
882 | struct mxt_info *info = &data->info; | |
883 | return scnprintf(buf, PAGE_SIZE, "%u.%u\n", | |
884 | info->family_id, info->variant_id); | |
885 | } | |
886 | ||
794eb67e DK |
887 | static ssize_t mxt_show_instance(char *buf, int count, |
888 | struct mxt_object *object, int instance, | |
889 | const u8 *val) | |
890 | { | |
891 | int i; | |
892 | ||
893 | if (object->instances > 0) | |
894 | count += scnprintf(buf + count, PAGE_SIZE - count, | |
895 | "Instance %u\n", instance); | |
896 | ||
897 | for (i = 0; i < object->size + 1; i++) | |
898 | count += scnprintf(buf + count, PAGE_SIZE - count, | |
899 | "\t[%2u]: %02x (%d)\n", i, val[i], val[i]); | |
900 | count += scnprintf(buf + count, PAGE_SIZE - count, "\n"); | |
901 | ||
902 | return count; | |
903 | } | |
904 | ||
7686b108 | 905 | static ssize_t mxt_object_show(struct device *dev, |
4cf51c38 JS |
906 | struct device_attribute *attr, char *buf) |
907 | { | |
7686b108 IV |
908 | struct mxt_data *data = dev_get_drvdata(dev); |
909 | struct mxt_object *object; | |
4cf51c38 JS |
910 | int count = 0; |
911 | int i, j; | |
912 | int error; | |
43a91d51 | 913 | u8 *obuf; |
4cf51c38 | 914 | |
43a91d51 DK |
915 | /* Pre-allocate buffer large enough to hold max sized object. */ |
916 | obuf = kmalloc(256, GFP_KERNEL); | |
917 | if (!obuf) | |
918 | return -ENOMEM; | |
4cf51c38 | 919 | |
43a91d51 | 920 | error = 0; |
4cf51c38 JS |
921 | for (i = 0; i < data->info.object_num; i++) { |
922 | object = data->object_table + i; | |
923 | ||
91630955 | 924 | if (!mxt_object_readable(object->type)) |
4cf51c38 | 925 | continue; |
4cf51c38 | 926 | |
91630955 DK |
927 | count += scnprintf(buf + count, PAGE_SIZE - count, |
928 | "T%u:\n", object->type); | |
4cf51c38 | 929 | |
794eb67e DK |
930 | for (j = 0; j < object->instances + 1; j++) { |
931 | u16 size = object->size + 1; | |
932 | u16 addr = object->start_address + j * size; | |
43a91d51 | 933 | |
794eb67e | 934 | error = __mxt_read_reg(data->client, addr, size, obuf); |
4cf51c38 | 935 | if (error) |
794eb67e | 936 | goto done; |
4cf51c38 | 937 | |
794eb67e | 938 | count = mxt_show_instance(buf, count, object, j, obuf); |
4cf51c38 | 939 | } |
4cf51c38 JS |
940 | } |
941 | ||
794eb67e | 942 | done: |
43a91d51 DK |
943 | kfree(obuf); |
944 | return error ?: count; | |
4cf51c38 JS |
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 | 1036 | |
7d4fa100 | 1037 | mxt_free_object_table(data); |
4cf51c38 | 1038 | |
7686b108 | 1039 | mxt_initialize(data); |
4cf51c38 JS |
1040 | } |
1041 | ||
1042 | enable_irq(data->irq); | |
1043 | ||
08960a07 IV |
1044 | error = mxt_make_highchg(data); |
1045 | if (error) | |
1046 | return error; | |
1047 | ||
4cf51c38 JS |
1048 | return count; |
1049 | } | |
1050 | ||
b19fc9ec DK |
1051 | static DEVICE_ATTR(fw_version, S_IRUGO, mxt_fw_version_show, NULL); |
1052 | static DEVICE_ATTR(hw_version, S_IRUGO, mxt_hw_version_show, NULL); | |
71b3e938 DK |
1053 | static DEVICE_ATTR(object, S_IRUGO, mxt_object_show, NULL); |
1054 | static DEVICE_ATTR(update_fw, S_IWUSR, NULL, mxt_update_fw_store); | |
4cf51c38 | 1055 | |
7686b108 | 1056 | static struct attribute *mxt_attrs[] = { |
b19fc9ec DK |
1057 | &dev_attr_fw_version.attr, |
1058 | &dev_attr_hw_version.attr, | |
4cf51c38 JS |
1059 | &dev_attr_object.attr, |
1060 | &dev_attr_update_fw.attr, | |
1061 | NULL | |
1062 | }; | |
1063 | ||
7686b108 IV |
1064 | static const struct attribute_group mxt_attr_group = { |
1065 | .attrs = mxt_attrs, | |
4cf51c38 JS |
1066 | }; |
1067 | ||
7686b108 | 1068 | static void mxt_start(struct mxt_data *data) |
4cf51c38 JS |
1069 | { |
1070 | /* Touch enable */ | |
7686b108 | 1071 | mxt_write_object(data, |
81c88a71 | 1072 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0x83); |
4cf51c38 JS |
1073 | } |
1074 | ||
7686b108 | 1075 | static void mxt_stop(struct mxt_data *data) |
4cf51c38 JS |
1076 | { |
1077 | /* Touch disable */ | |
7686b108 | 1078 | mxt_write_object(data, |
81c88a71 | 1079 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0); |
4cf51c38 JS |
1080 | } |
1081 | ||
7686b108 | 1082 | static int mxt_input_open(struct input_dev *dev) |
4cf51c38 | 1083 | { |
7686b108 | 1084 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1085 | |
7686b108 | 1086 | mxt_start(data); |
4cf51c38 JS |
1087 | |
1088 | return 0; | |
1089 | } | |
1090 | ||
7686b108 | 1091 | static void mxt_input_close(struct input_dev *dev) |
4cf51c38 | 1092 | { |
7686b108 | 1093 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1094 | |
7686b108 | 1095 | mxt_stop(data); |
4cf51c38 JS |
1096 | } |
1097 | ||
7686b108 | 1098 | static int __devinit mxt_probe(struct i2c_client *client, |
4cf51c38 JS |
1099 | const struct i2c_device_id *id) |
1100 | { | |
919ed895 | 1101 | const struct mxt_platform_data *pdata = client->dev.platform_data; |
7686b108 | 1102 | struct mxt_data *data; |
4cf51c38 JS |
1103 | struct input_dev *input_dev; |
1104 | int error; | |
cb159115 | 1105 | unsigned int num_mt_slots; |
4cf51c38 | 1106 | |
919ed895 | 1107 | if (!pdata) |
4cf51c38 JS |
1108 | return -EINVAL; |
1109 | ||
7686b108 | 1110 | data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL); |
4cf51c38 JS |
1111 | input_dev = input_allocate_device(); |
1112 | if (!data || !input_dev) { | |
1113 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
1114 | error = -ENOMEM; | |
1115 | goto err_free_mem; | |
1116 | } | |
1117 | ||
7686b108 | 1118 | input_dev->name = "Atmel maXTouch Touchscreen"; |
ec02ac2b DK |
1119 | snprintf(data->phys, sizeof(data->phys), "i2c-%u-%04x/input0", |
1120 | client->adapter->nr, client->addr); | |
1121 | input_dev->phys = data->phys; | |
1122 | ||
4cf51c38 JS |
1123 | input_dev->id.bustype = BUS_I2C; |
1124 | input_dev->dev.parent = &client->dev; | |
7686b108 IV |
1125 | input_dev->open = mxt_input_open; |
1126 | input_dev->close = mxt_input_close; | |
4cf51c38 | 1127 | |
910d8051 JS |
1128 | data->client = client; |
1129 | data->input_dev = input_dev; | |
1130 | data->pdata = pdata; | |
1131 | data->irq = client->irq; | |
1132 | ||
1133 | mxt_calc_resolution(data); | |
1134 | ||
cb159115 DK |
1135 | error = mxt_initialize(data); |
1136 | if (error) | |
1137 | goto err_free_mem; | |
1138 | ||
4cf51c38 JS |
1139 | __set_bit(EV_ABS, input_dev->evbit); |
1140 | __set_bit(EV_KEY, input_dev->evbit); | |
1141 | __set_bit(BTN_TOUCH, input_dev->keybit); | |
1142 | ||
1143 | /* For single touch */ | |
1144 | input_set_abs_params(input_dev, ABS_X, | |
910d8051 | 1145 | 0, data->max_x, 0, 0); |
4cf51c38 | 1146 | input_set_abs_params(input_dev, ABS_Y, |
910d8051 | 1147 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1148 | input_set_abs_params(input_dev, ABS_PRESSURE, |
1149 | 0, 255, 0, 0); | |
4cf51c38 JS |
1150 | |
1151 | /* For multi touch */ | |
cb159115 | 1152 | num_mt_slots = data->T9_reportid_max - data->T9_reportid_min + 1; |
b4adbbef | 1153 | error = input_mt_init_slots(input_dev, num_mt_slots, 0); |
e1e1658d | 1154 | if (error) |
cb159115 | 1155 | goto err_free_object; |
4cf51c38 | 1156 | input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, |
7686b108 | 1157 | 0, MXT_MAX_AREA, 0, 0); |
4cf51c38 | 1158 | input_set_abs_params(input_dev, ABS_MT_POSITION_X, |
910d8051 | 1159 | 0, data->max_x, 0, 0); |
4cf51c38 | 1160 | input_set_abs_params(input_dev, ABS_MT_POSITION_Y, |
910d8051 | 1161 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1162 | input_set_abs_params(input_dev, ABS_MT_PRESSURE, |
1163 | 0, 255, 0, 0); | |
4cf51c38 JS |
1164 | |
1165 | input_set_drvdata(input_dev, data); | |
4cf51c38 JS |
1166 | i2c_set_clientdata(client, data); |
1167 | ||
7686b108 | 1168 | error = request_threaded_irq(client->irq, NULL, mxt_interrupt, |
9b7e31bb | 1169 | pdata->irqflags | IRQF_ONESHOT, |
f053ea8d | 1170 | client->name, data); |
4cf51c38 JS |
1171 | if (error) { |
1172 | dev_err(&client->dev, "Failed to register interrupt\n"); | |
1173 | goto err_free_object; | |
1174 | } | |
1175 | ||
08960a07 IV |
1176 | error = mxt_make_highchg(data); |
1177 | if (error) | |
1178 | goto err_free_irq; | |
1179 | ||
4cf51c38 JS |
1180 | error = input_register_device(input_dev); |
1181 | if (error) | |
1182 | goto err_free_irq; | |
1183 | ||
7686b108 | 1184 | error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 JS |
1185 | if (error) |
1186 | goto err_unregister_device; | |
1187 | ||
1188 | return 0; | |
1189 | ||
1190 | err_unregister_device: | |
1191 | input_unregister_device(input_dev); | |
1192 | input_dev = NULL; | |
1193 | err_free_irq: | |
1194 | free_irq(client->irq, data); | |
1195 | err_free_object: | |
1196 | kfree(data->object_table); | |
1197 | err_free_mem: | |
1198 | input_free_device(input_dev); | |
1199 | kfree(data); | |
1200 | return error; | |
1201 | } | |
1202 | ||
7686b108 | 1203 | static int __devexit mxt_remove(struct i2c_client *client) |
4cf51c38 | 1204 | { |
7686b108 | 1205 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 | 1206 | |
7686b108 | 1207 | sysfs_remove_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 JS |
1208 | free_irq(data->irq, data); |
1209 | input_unregister_device(data->input_dev); | |
1210 | kfree(data->object_table); | |
1211 | kfree(data); | |
1212 | ||
1213 | return 0; | |
1214 | } | |
1215 | ||
3a73c816 | 1216 | #ifdef CONFIG_PM_SLEEP |
7686b108 | 1217 | static int mxt_suspend(struct device *dev) |
4cf51c38 | 1218 | { |
8b5fce06 | 1219 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1220 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1221 | struct input_dev *input_dev = data->input_dev; |
1222 | ||
1223 | mutex_lock(&input_dev->mutex); | |
1224 | ||
1225 | if (input_dev->users) | |
7686b108 | 1226 | mxt_stop(data); |
4cf51c38 JS |
1227 | |
1228 | mutex_unlock(&input_dev->mutex); | |
1229 | ||
1230 | return 0; | |
1231 | } | |
1232 | ||
7686b108 | 1233 | static int mxt_resume(struct device *dev) |
4cf51c38 | 1234 | { |
8b5fce06 | 1235 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1236 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1237 | struct input_dev *input_dev = data->input_dev; |
1238 | ||
1239 | /* Soft reset */ | |
81c88a71 | 1240 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 | 1241 | MXT_COMMAND_RESET, 1); |
4cf51c38 | 1242 | |
7686b108 | 1243 | msleep(MXT_RESET_TIME); |
4cf51c38 JS |
1244 | |
1245 | mutex_lock(&input_dev->mutex); | |
1246 | ||
1247 | if (input_dev->users) | |
7686b108 | 1248 | mxt_start(data); |
4cf51c38 JS |
1249 | |
1250 | mutex_unlock(&input_dev->mutex); | |
1251 | ||
1252 | return 0; | |
1253 | } | |
4cf51c38 JS |
1254 | #endif |
1255 | ||
3a73c816 DK |
1256 | static SIMPLE_DEV_PM_OPS(mxt_pm_ops, mxt_suspend, mxt_resume); |
1257 | ||
7686b108 | 1258 | static const struct i2c_device_id mxt_id[] = { |
4cf51c38 | 1259 | { "qt602240_ts", 0 }, |
7686b108 | 1260 | { "atmel_mxt_ts", 0 }, |
46ee2a05 | 1261 | { "mXT224", 0 }, |
4cf51c38 JS |
1262 | { } |
1263 | }; | |
7686b108 | 1264 | MODULE_DEVICE_TABLE(i2c, mxt_id); |
4cf51c38 | 1265 | |
7686b108 | 1266 | static struct i2c_driver mxt_driver = { |
4cf51c38 | 1267 | .driver = { |
7686b108 | 1268 | .name = "atmel_mxt_ts", |
4cf51c38 | 1269 | .owner = THIS_MODULE, |
7686b108 | 1270 | .pm = &mxt_pm_ops, |
4cf51c38 | 1271 | }, |
7686b108 IV |
1272 | .probe = mxt_probe, |
1273 | .remove = __devexit_p(mxt_remove), | |
1274 | .id_table = mxt_id, | |
4cf51c38 JS |
1275 | }; |
1276 | ||
1b92c1cf | 1277 | module_i2c_driver(mxt_driver); |
4cf51c38 JS |
1278 | |
1279 | /* Module information */ | |
1280 | MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); | |
7686b108 | 1281 | MODULE_DESCRIPTION("Atmel maXTouch Touchscreen driver"); |
4cf51c38 | 1282 | MODULE_LICENSE("GPL"); |