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> | |
4cf51c38 JS |
15 | #include <linux/delay.h> |
16 | #include <linux/firmware.h> | |
17 | #include <linux/i2c.h> | |
964de521 | 18 | #include <linux/i2c/atmel_mxt_ts.h> |
8b86c1c2 | 19 | #include <linux/input/mt.h> |
4cf51c38 JS |
20 | #include <linux/interrupt.h> |
21 | #include <linux/slab.h> | |
22 | ||
23 | /* Version */ | |
7686b108 IV |
24 | #define MXT_VER_20 20 |
25 | #define MXT_VER_21 21 | |
26 | #define MXT_VER_22 22 | |
4cf51c38 JS |
27 | |
28 | /* Slave addresses */ | |
7686b108 IV |
29 | #define MXT_APP_LOW 0x4a |
30 | #define MXT_APP_HIGH 0x4b | |
31 | #define MXT_BOOT_LOW 0x24 | |
32 | #define MXT_BOOT_HIGH 0x25 | |
4cf51c38 JS |
33 | |
34 | /* Firmware */ | |
7686b108 | 35 | #define MXT_FW_NAME "maxtouch.fw" |
4cf51c38 JS |
36 | |
37 | /* Registers */ | |
23003a84 | 38 | #define MXT_INFO 0x00 |
7686b108 IV |
39 | #define MXT_FAMILY_ID 0x00 |
40 | #define MXT_VARIANT_ID 0x01 | |
41 | #define MXT_VERSION 0x02 | |
42 | #define MXT_BUILD 0x03 | |
43 | #define MXT_MATRIX_X_SIZE 0x04 | |
44 | #define MXT_MATRIX_Y_SIZE 0x05 | |
45 | #define MXT_OBJECT_NUM 0x06 | |
46 | #define MXT_OBJECT_START 0x07 | |
4cf51c38 | 47 | |
7686b108 | 48 | #define MXT_OBJECT_SIZE 6 |
4cf51c38 JS |
49 | |
50 | /* Object types */ | |
81c88a71 IV |
51 | #define MXT_DEBUG_DIAGNOSTIC_T37 37 |
52 | #define MXT_GEN_MESSAGE_T5 5 | |
53 | #define MXT_GEN_COMMAND_T6 6 | |
54 | #define MXT_GEN_POWER_T7 7 | |
55 | #define MXT_GEN_ACQUIRE_T8 8 | |
56 | #define MXT_GEN_DATASOURCE_T53 53 | |
57 | #define MXT_TOUCH_MULTI_T9 9 | |
58 | #define MXT_TOUCH_KEYARRAY_T15 15 | |
59 | #define MXT_TOUCH_PROXIMITY_T23 23 | |
60 | #define MXT_TOUCH_PROXKEY_T52 52 | |
61 | #define MXT_PROCI_GRIPFACE_T20 20 | |
62 | #define MXT_PROCG_NOISE_T22 22 | |
63 | #define MXT_PROCI_ONETOUCH_T24 24 | |
64 | #define MXT_PROCI_TWOTOUCH_T27 27 | |
65 | #define MXT_PROCI_GRIP_T40 40 | |
66 | #define MXT_PROCI_PALM_T41 41 | |
67 | #define MXT_PROCI_TOUCHSUPPRESSION_T42 42 | |
68 | #define MXT_PROCI_STYLUS_T47 47 | |
69 | #define MXT_PROCG_NOISESUPPRESSION_T48 48 | |
70 | #define MXT_SPT_COMMSCONFIG_T18 18 | |
71 | #define MXT_SPT_GPIOPWM_T19 19 | |
72 | #define MXT_SPT_SELFTEST_T25 25 | |
73 | #define MXT_SPT_CTECONFIG_T28 28 | |
74 | #define MXT_SPT_USERDATA_T38 38 | |
75 | #define MXT_SPT_DIGITIZER_T43 43 | |
76 | #define MXT_SPT_MESSAGECOUNT_T44 44 | |
77 | #define MXT_SPT_CTECONFIG_T46 46 | |
78 | ||
79 | /* MXT_GEN_COMMAND_T6 field */ | |
7686b108 IV |
80 | #define MXT_COMMAND_RESET 0 |
81 | #define MXT_COMMAND_BACKUPNV 1 | |
82 | #define MXT_COMMAND_CALIBRATE 2 | |
83 | #define MXT_COMMAND_REPORTALL 3 | |
84 | #define MXT_COMMAND_DIAGNOSTIC 5 | |
85 | ||
81c88a71 | 86 | /* MXT_GEN_POWER_T7 field */ |
7686b108 IV |
87 | #define MXT_POWER_IDLEACQINT 0 |
88 | #define MXT_POWER_ACTVACQINT 1 | |
89 | #define MXT_POWER_ACTV2IDLETO 2 | |
90 | ||
81c88a71 | 91 | /* MXT_GEN_ACQUIRE_T8 field */ |
7686b108 IV |
92 | #define MXT_ACQUIRE_CHRGTIME 0 |
93 | #define MXT_ACQUIRE_TCHDRIFT 2 | |
94 | #define MXT_ACQUIRE_DRIFTST 3 | |
95 | #define MXT_ACQUIRE_TCHAUTOCAL 4 | |
96 | #define MXT_ACQUIRE_SYNC 5 | |
97 | #define MXT_ACQUIRE_ATCHCALST 6 | |
98 | #define MXT_ACQUIRE_ATCHCALSTHR 7 | |
99 | ||
81c88a71 | 100 | /* MXT_TOUCH_MULTI_T9 field */ |
7686b108 IV |
101 | #define MXT_TOUCH_CTRL 0 |
102 | #define MXT_TOUCH_XORIGIN 1 | |
103 | #define MXT_TOUCH_YORIGIN 2 | |
104 | #define MXT_TOUCH_XSIZE 3 | |
105 | #define MXT_TOUCH_YSIZE 4 | |
106 | #define MXT_TOUCH_BLEN 6 | |
107 | #define MXT_TOUCH_TCHTHR 7 | |
108 | #define MXT_TOUCH_TCHDI 8 | |
109 | #define MXT_TOUCH_ORIENT 9 | |
110 | #define MXT_TOUCH_MOVHYSTI 11 | |
111 | #define MXT_TOUCH_MOVHYSTN 12 | |
112 | #define MXT_TOUCH_NUMTOUCH 14 | |
113 | #define MXT_TOUCH_MRGHYST 15 | |
114 | #define MXT_TOUCH_MRGTHR 16 | |
115 | #define MXT_TOUCH_AMPHYST 17 | |
116 | #define MXT_TOUCH_XRANGE_LSB 18 | |
117 | #define MXT_TOUCH_XRANGE_MSB 19 | |
118 | #define MXT_TOUCH_YRANGE_LSB 20 | |
119 | #define MXT_TOUCH_YRANGE_MSB 21 | |
120 | #define MXT_TOUCH_XLOCLIP 22 | |
121 | #define MXT_TOUCH_XHICLIP 23 | |
122 | #define MXT_TOUCH_YLOCLIP 24 | |
123 | #define MXT_TOUCH_YHICLIP 25 | |
124 | #define MXT_TOUCH_XEDGECTRL 26 | |
125 | #define MXT_TOUCH_XEDGEDIST 27 | |
126 | #define MXT_TOUCH_YEDGECTRL 28 | |
127 | #define MXT_TOUCH_YEDGEDIST 29 | |
979a72da | 128 | #define MXT_TOUCH_JUMPLIMIT 30 |
7686b108 | 129 | |
81c88a71 | 130 | /* MXT_PROCI_GRIPFACE_T20 field */ |
7686b108 IV |
131 | #define MXT_GRIPFACE_CTRL 0 |
132 | #define MXT_GRIPFACE_XLOGRIP 1 | |
133 | #define MXT_GRIPFACE_XHIGRIP 2 | |
134 | #define MXT_GRIPFACE_YLOGRIP 3 | |
135 | #define MXT_GRIPFACE_YHIGRIP 4 | |
136 | #define MXT_GRIPFACE_MAXTCHS 5 | |
137 | #define MXT_GRIPFACE_SZTHR1 7 | |
138 | #define MXT_GRIPFACE_SZTHR2 8 | |
139 | #define MXT_GRIPFACE_SHPTHR1 9 | |
140 | #define MXT_GRIPFACE_SHPTHR2 10 | |
141 | #define MXT_GRIPFACE_SUPEXTTO 11 | |
142 | ||
143 | /* MXT_PROCI_NOISE field */ | |
144 | #define MXT_NOISE_CTRL 0 | |
145 | #define MXT_NOISE_OUTFLEN 1 | |
146 | #define MXT_NOISE_GCAFUL_LSB 3 | |
147 | #define MXT_NOISE_GCAFUL_MSB 4 | |
148 | #define MXT_NOISE_GCAFLL_LSB 5 | |
149 | #define MXT_NOISE_GCAFLL_MSB 6 | |
150 | #define MXT_NOISE_ACTVGCAFVALID 7 | |
151 | #define MXT_NOISE_NOISETHR 8 | |
152 | #define MXT_NOISE_FREQHOPSCALE 10 | |
153 | #define MXT_NOISE_FREQ0 11 | |
154 | #define MXT_NOISE_FREQ1 12 | |
155 | #define MXT_NOISE_FREQ2 13 | |
156 | #define MXT_NOISE_FREQ3 14 | |
157 | #define MXT_NOISE_FREQ4 15 | |
158 | #define MXT_NOISE_IDLEGCAFVALID 16 | |
159 | ||
81c88a71 | 160 | /* MXT_SPT_COMMSCONFIG_T18 */ |
7686b108 IV |
161 | #define MXT_COMMS_CTRL 0 |
162 | #define MXT_COMMS_CMD 1 | |
163 | ||
81c88a71 | 164 | /* MXT_SPT_CTECONFIG_T28 field */ |
7686b108 IV |
165 | #define MXT_CTE_CTRL 0 |
166 | #define MXT_CTE_CMD 1 | |
167 | #define MXT_CTE_MODE 2 | |
168 | #define MXT_CTE_IDLEGCAFDEPTH 3 | |
169 | #define MXT_CTE_ACTVGCAFDEPTH 4 | |
979a72da | 170 | #define MXT_CTE_VOLTAGE 5 |
7686b108 IV |
171 | |
172 | #define MXT_VOLTAGE_DEFAULT 2700000 | |
173 | #define MXT_VOLTAGE_STEP 10000 | |
174 | ||
81c88a71 | 175 | /* Define for MXT_GEN_COMMAND_T6 */ |
7686b108 IV |
176 | #define MXT_BOOT_VALUE 0xa5 |
177 | #define MXT_BACKUP_VALUE 0x55 | |
8343bce1 LT |
178 | #define MXT_BACKUP_TIME 50 /* msec */ |
179 | #define MXT_RESET_TIME 200 /* msec */ | |
7686b108 IV |
180 | |
181 | #define MXT_FWRESET_TIME 175 /* msec */ | |
4cf51c38 JS |
182 | |
183 | /* Command to unlock bootloader */ | |
7686b108 IV |
184 | #define MXT_UNLOCK_CMD_MSB 0xaa |
185 | #define MXT_UNLOCK_CMD_LSB 0xdc | |
4cf51c38 JS |
186 | |
187 | /* Bootloader mode status */ | |
7686b108 IV |
188 | #define MXT_WAITING_BOOTLOAD_CMD 0xc0 /* valid 7 6 bit only */ |
189 | #define MXT_WAITING_FRAME_DATA 0x80 /* valid 7 6 bit only */ | |
190 | #define MXT_FRAME_CRC_CHECK 0x02 | |
191 | #define MXT_FRAME_CRC_FAIL 0x03 | |
192 | #define MXT_FRAME_CRC_PASS 0x04 | |
193 | #define MXT_APP_CRC_FAIL 0x40 /* valid 7 8 bit only */ | |
194 | #define MXT_BOOT_STATUS_MASK 0x3f | |
4cf51c38 JS |
195 | |
196 | /* Touch status */ | |
b2e459b8 | 197 | #define MXT_UNGRIP (1 << 0) |
7686b108 IV |
198 | #define MXT_SUPPRESS (1 << 1) |
199 | #define MXT_AMP (1 << 2) | |
200 | #define MXT_VECTOR (1 << 3) | |
201 | #define MXT_MOVE (1 << 4) | |
202 | #define MXT_RELEASE (1 << 5) | |
203 | #define MXT_PRESS (1 << 6) | |
204 | #define MXT_DETECT (1 << 7) | |
4cf51c38 | 205 | |
910d8051 JS |
206 | /* Touch orient bits */ |
207 | #define MXT_XY_SWITCH (1 << 0) | |
208 | #define MXT_X_INVERT (1 << 1) | |
209 | #define MXT_Y_INVERT (1 << 2) | |
210 | ||
4cf51c38 | 211 | /* Touchscreen absolute values */ |
7686b108 | 212 | #define MXT_MAX_AREA 0xff |
4cf51c38 | 213 | |
22dfab7f DK |
214 | #define MXT_PIXELS_PER_MM 20 |
215 | ||
7686b108 | 216 | struct mxt_info { |
4cf51c38 JS |
217 | u8 family_id; |
218 | u8 variant_id; | |
219 | u8 version; | |
220 | u8 build; | |
221 | u8 matrix_xsize; | |
222 | u8 matrix_ysize; | |
223 | u8 object_num; | |
224 | }; | |
225 | ||
7686b108 | 226 | struct mxt_object { |
4cf51c38 JS |
227 | u8 type; |
228 | u16 start_address; | |
333e5a9a DK |
229 | u8 size; /* Size of each instance - 1 */ |
230 | u8 instances; /* Number of instances - 1 */ | |
4cf51c38 | 231 | u8 num_report_ids; |
333e5a9a | 232 | } __packed; |
4cf51c38 | 233 | |
7686b108 | 234 | struct mxt_message { |
4cf51c38 JS |
235 | u8 reportid; |
236 | u8 message[7]; | |
4cf51c38 JS |
237 | }; |
238 | ||
4cf51c38 | 239 | /* Each client has this additional data */ |
7686b108 | 240 | struct mxt_data { |
4cf51c38 JS |
241 | struct i2c_client *client; |
242 | struct input_dev *input_dev; | |
ec02ac2b | 243 | char phys[64]; /* device physical location */ |
7686b108 IV |
244 | const struct mxt_platform_data *pdata; |
245 | struct mxt_object *object_table; | |
246 | struct mxt_info info; | |
22dfab7f | 247 | |
4cf51c38 | 248 | unsigned int irq; |
910d8051 JS |
249 | unsigned int max_x; |
250 | unsigned int max_y; | |
333e5a9a DK |
251 | |
252 | /* Cached parameters from object table */ | |
fdf80421 | 253 | u8 T6_reportid; |
333e5a9a DK |
254 | u8 T9_reportid_min; |
255 | u8 T9_reportid_max; | |
22dfab7f | 256 | u8 T19_reportid; |
4cf51c38 JS |
257 | }; |
258 | ||
7686b108 | 259 | static bool mxt_object_readable(unsigned int type) |
4cf51c38 JS |
260 | { |
261 | switch (type) { | |
81c88a71 IV |
262 | case MXT_GEN_COMMAND_T6: |
263 | case MXT_GEN_POWER_T7: | |
264 | case MXT_GEN_ACQUIRE_T8: | |
265 | case MXT_GEN_DATASOURCE_T53: | |
266 | case MXT_TOUCH_MULTI_T9: | |
267 | case MXT_TOUCH_KEYARRAY_T15: | |
268 | case MXT_TOUCH_PROXIMITY_T23: | |
269 | case MXT_TOUCH_PROXKEY_T52: | |
270 | case MXT_PROCI_GRIPFACE_T20: | |
271 | case MXT_PROCG_NOISE_T22: | |
272 | case MXT_PROCI_ONETOUCH_T24: | |
273 | case MXT_PROCI_TWOTOUCH_T27: | |
274 | case MXT_PROCI_GRIP_T40: | |
275 | case MXT_PROCI_PALM_T41: | |
276 | case MXT_PROCI_TOUCHSUPPRESSION_T42: | |
277 | case MXT_PROCI_STYLUS_T47: | |
278 | case MXT_PROCG_NOISESUPPRESSION_T48: | |
279 | case MXT_SPT_COMMSCONFIG_T18: | |
280 | case MXT_SPT_GPIOPWM_T19: | |
281 | case MXT_SPT_SELFTEST_T25: | |
282 | case MXT_SPT_CTECONFIG_T28: | |
283 | case MXT_SPT_USERDATA_T38: | |
284 | case MXT_SPT_DIGITIZER_T43: | |
285 | case MXT_SPT_CTECONFIG_T46: | |
4cf51c38 JS |
286 | return true; |
287 | default: | |
288 | return false; | |
289 | } | |
290 | } | |
291 | ||
7686b108 | 292 | static bool mxt_object_writable(unsigned int type) |
4cf51c38 JS |
293 | { |
294 | switch (type) { | |
81c88a71 IV |
295 | case MXT_GEN_COMMAND_T6: |
296 | case MXT_GEN_POWER_T7: | |
297 | case MXT_GEN_ACQUIRE_T8: | |
298 | case MXT_TOUCH_MULTI_T9: | |
299 | case MXT_TOUCH_KEYARRAY_T15: | |
300 | case MXT_TOUCH_PROXIMITY_T23: | |
301 | case MXT_TOUCH_PROXKEY_T52: | |
302 | case MXT_PROCI_GRIPFACE_T20: | |
303 | case MXT_PROCG_NOISE_T22: | |
304 | case MXT_PROCI_ONETOUCH_T24: | |
305 | case MXT_PROCI_TWOTOUCH_T27: | |
306 | case MXT_PROCI_GRIP_T40: | |
307 | case MXT_PROCI_PALM_T41: | |
308 | case MXT_PROCI_TOUCHSUPPRESSION_T42: | |
309 | case MXT_PROCI_STYLUS_T47: | |
310 | case MXT_PROCG_NOISESUPPRESSION_T48: | |
311 | case MXT_SPT_COMMSCONFIG_T18: | |
312 | case MXT_SPT_GPIOPWM_T19: | |
313 | case MXT_SPT_SELFTEST_T25: | |
314 | case MXT_SPT_CTECONFIG_T28: | |
315 | case MXT_SPT_DIGITIZER_T43: | |
316 | case MXT_SPT_CTECONFIG_T46: | |
4cf51c38 JS |
317 | return true; |
318 | default: | |
319 | return false; | |
320 | } | |
321 | } | |
322 | ||
7686b108 | 323 | static void mxt_dump_message(struct device *dev, |
6ee3dbf9 | 324 | struct mxt_message *message) |
4cf51c38 | 325 | { |
eb007c86 AS |
326 | dev_dbg(dev, "reportid: %u\tmessage: %*ph\n", |
327 | message->reportid, 7, message->message); | |
4cf51c38 JS |
328 | } |
329 | ||
7686b108 | 330 | static int mxt_check_bootloader(struct i2c_client *client, |
4cf51c38 JS |
331 | unsigned int state) |
332 | { | |
333 | u8 val; | |
334 | ||
335 | recheck: | |
336 | if (i2c_master_recv(client, &val, 1) != 1) { | |
337 | dev_err(&client->dev, "%s: i2c recv failed\n", __func__); | |
338 | return -EIO; | |
339 | } | |
340 | ||
341 | switch (state) { | |
7686b108 IV |
342 | case MXT_WAITING_BOOTLOAD_CMD: |
343 | case MXT_WAITING_FRAME_DATA: | |
344 | val &= ~MXT_BOOT_STATUS_MASK; | |
4cf51c38 | 345 | break; |
7686b108 IV |
346 | case MXT_FRAME_CRC_PASS: |
347 | if (val == MXT_FRAME_CRC_CHECK) | |
4cf51c38 JS |
348 | goto recheck; |
349 | break; | |
350 | default: | |
351 | return -EINVAL; | |
352 | } | |
353 | ||
354 | if (val != state) { | |
355 | dev_err(&client->dev, "Unvalid bootloader mode state\n"); | |
356 | return -EINVAL; | |
357 | } | |
358 | ||
359 | return 0; | |
360 | } | |
361 | ||
7686b108 | 362 | static int mxt_unlock_bootloader(struct i2c_client *client) |
4cf51c38 JS |
363 | { |
364 | u8 buf[2]; | |
365 | ||
7686b108 IV |
366 | buf[0] = MXT_UNLOCK_CMD_LSB; |
367 | buf[1] = MXT_UNLOCK_CMD_MSB; | |
4cf51c38 JS |
368 | |
369 | if (i2c_master_send(client, buf, 2) != 2) { | |
370 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
371 | return -EIO; | |
372 | } | |
373 | ||
374 | return 0; | |
375 | } | |
376 | ||
7686b108 | 377 | static int mxt_fw_write(struct i2c_client *client, |
4cf51c38 JS |
378 | const u8 *data, unsigned int frame_size) |
379 | { | |
380 | if (i2c_master_send(client, data, frame_size) != frame_size) { | |
381 | dev_err(&client->dev, "%s: i2c send failed\n", __func__); | |
382 | return -EIO; | |
383 | } | |
384 | ||
385 | return 0; | |
386 | } | |
387 | ||
7686b108 | 388 | static int __mxt_read_reg(struct i2c_client *client, |
4cf51c38 JS |
389 | u16 reg, u16 len, void *val) |
390 | { | |
391 | struct i2c_msg xfer[2]; | |
392 | u8 buf[2]; | |
771733e3 | 393 | int ret; |
4cf51c38 JS |
394 | |
395 | buf[0] = reg & 0xff; | |
396 | buf[1] = (reg >> 8) & 0xff; | |
397 | ||
398 | /* Write register */ | |
399 | xfer[0].addr = client->addr; | |
400 | xfer[0].flags = 0; | |
401 | xfer[0].len = 2; | |
402 | xfer[0].buf = buf; | |
403 | ||
404 | /* Read data */ | |
405 | xfer[1].addr = client->addr; | |
406 | xfer[1].flags = I2C_M_RD; | |
407 | xfer[1].len = len; | |
408 | xfer[1].buf = val; | |
409 | ||
771733e3 DK |
410 | ret = i2c_transfer(client->adapter, xfer, 2); |
411 | if (ret == 2) { | |
412 | ret = 0; | |
413 | } else { | |
414 | if (ret >= 0) | |
415 | ret = -EIO; | |
416 | dev_err(&client->dev, "%s: i2c transfer failed (%d)\n", | |
417 | __func__, ret); | |
4cf51c38 JS |
418 | } |
419 | ||
771733e3 | 420 | return ret; |
4cf51c38 JS |
421 | } |
422 | ||
7686b108 | 423 | static int mxt_read_reg(struct i2c_client *client, u16 reg, u8 *val) |
4cf51c38 | 424 | { |
7686b108 | 425 | return __mxt_read_reg(client, reg, 1, val); |
4cf51c38 JS |
426 | } |
427 | ||
9638ab7c DK |
428 | static int __mxt_write_reg(struct i2c_client *client, u16 reg, u16 len, |
429 | const void *val) | |
4cf51c38 | 430 | { |
9638ab7c DK |
431 | u8 *buf; |
432 | size_t count; | |
771733e3 | 433 | int ret; |
4cf51c38 | 434 | |
9638ab7c DK |
435 | count = len + 2; |
436 | buf = kmalloc(count, GFP_KERNEL); | |
437 | if (!buf) | |
438 | return -ENOMEM; | |
4cf51c38 JS |
439 | |
440 | buf[0] = reg & 0xff; | |
441 | buf[1] = (reg >> 8) & 0xff; | |
9638ab7c | 442 | memcpy(&buf[2], val, len); |
4cf51c38 | 443 | |
9638ab7c DK |
444 | ret = i2c_master_send(client, buf, count); |
445 | if (ret == count) { | |
771733e3 DK |
446 | ret = 0; |
447 | } else { | |
448 | if (ret >= 0) | |
449 | ret = -EIO; | |
450 | dev_err(&client->dev, "%s: i2c send failed (%d)\n", | |
451 | __func__, ret); | |
4cf51c38 JS |
452 | } |
453 | ||
9638ab7c | 454 | kfree(buf); |
771733e3 | 455 | return ret; |
4cf51c38 JS |
456 | } |
457 | ||
9638ab7c | 458 | static int mxt_write_reg(struct i2c_client *client, u16 reg, u8 val) |
4cf51c38 | 459 | { |
9638ab7c | 460 | return __mxt_write_reg(client, reg, 1, &val); |
4cf51c38 JS |
461 | } |
462 | ||
7686b108 IV |
463 | static struct mxt_object * |
464 | mxt_get_object(struct mxt_data *data, u8 type) | |
4cf51c38 | 465 | { |
7686b108 | 466 | struct mxt_object *object; |
4cf51c38 JS |
467 | int i; |
468 | ||
469 | for (i = 0; i < data->info.object_num; i++) { | |
470 | object = data->object_table + i; | |
471 | if (object->type == type) | |
472 | return object; | |
473 | } | |
474 | ||
475 | dev_err(&data->client->dev, "Invalid object type\n"); | |
476 | return NULL; | |
477 | } | |
478 | ||
7686b108 IV |
479 | static int mxt_read_message(struct mxt_data *data, |
480 | struct mxt_message *message) | |
4cf51c38 | 481 | { |
7686b108 | 482 | struct mxt_object *object; |
4cf51c38 JS |
483 | u16 reg; |
484 | ||
81c88a71 | 485 | object = mxt_get_object(data, MXT_GEN_MESSAGE_T5); |
4cf51c38 JS |
486 | if (!object) |
487 | return -EINVAL; | |
488 | ||
489 | reg = object->start_address; | |
7686b108 IV |
490 | return __mxt_read_reg(data->client, reg, |
491 | sizeof(struct mxt_message), message); | |
4cf51c38 JS |
492 | } |
493 | ||
7686b108 | 494 | static int mxt_write_object(struct mxt_data *data, |
4cf51c38 JS |
495 | u8 type, u8 offset, u8 val) |
496 | { | |
7686b108 | 497 | struct mxt_object *object; |
4cf51c38 JS |
498 | u16 reg; |
499 | ||
7686b108 | 500 | object = mxt_get_object(data, type); |
d1ff320f | 501 | if (!object || offset >= object->size + 1) |
4cf51c38 JS |
502 | return -EINVAL; |
503 | ||
504 | reg = object->start_address; | |
7686b108 | 505 | return mxt_write_reg(data->client, reg + offset, val); |
4cf51c38 JS |
506 | } |
507 | ||
22dfab7f DK |
508 | static void mxt_input_button(struct mxt_data *data, struct mxt_message *message) |
509 | { | |
510 | struct input_dev *input = data->input_dev; | |
fb5e4c3e | 511 | const struct mxt_platform_data *pdata = data->pdata; |
22dfab7f DK |
512 | bool button; |
513 | int i; | |
514 | ||
515 | /* Active-low switch */ | |
fb5e4c3e ND |
516 | for (i = 0; i < pdata->t19_num_keys; i++) { |
517 | if (pdata->t19_keymap[i] == KEY_RESERVED) | |
22dfab7f | 518 | continue; |
fb5e4c3e ND |
519 | button = !(message->message[0] & (1 << i)); |
520 | input_report_key(input, pdata->t19_keymap[i], button); | |
22dfab7f DK |
521 | } |
522 | } | |
523 | ||
7686b108 IV |
524 | static void mxt_input_touchevent(struct mxt_data *data, |
525 | struct mxt_message *message, int id) | |
4cf51c38 | 526 | { |
4cf51c38 JS |
527 | struct device *dev = &data->client->dev; |
528 | u8 status = message->message[0]; | |
fba5bc31 | 529 | struct input_dev *input_dev = data->input_dev; |
4cf51c38 JS |
530 | int x; |
531 | int y; | |
532 | int area; | |
28ac2933 | 533 | int pressure; |
4cf51c38 | 534 | |
910d8051 JS |
535 | x = (message->message[1] << 4) | ((message->message[3] >> 4) & 0xf); |
536 | y = (message->message[2] << 4) | ((message->message[3] & 0xf)); | |
537 | if (data->max_x < 1024) | |
538 | x = x >> 2; | |
539 | if (data->max_y < 1024) | |
540 | y = y >> 2; | |
541 | ||
4cf51c38 | 542 | area = message->message[4]; |
28ac2933 | 543 | pressure = message->message[5]; |
4cf51c38 | 544 | |
b2e459b8 DK |
545 | dev_dbg(dev, |
546 | "[%u] %c%c%c%c%c%c%c%c x: %5u y: %5u area: %3u amp: %3u\n", | |
547 | id, | |
548 | (status & MXT_DETECT) ? 'D' : '.', | |
549 | (status & MXT_PRESS) ? 'P' : '.', | |
550 | (status & MXT_RELEASE) ? 'R' : '.', | |
551 | (status & MXT_MOVE) ? 'M' : '.', | |
552 | (status & MXT_VECTOR) ? 'V' : '.', | |
553 | (status & MXT_AMP) ? 'A' : '.', | |
554 | (status & MXT_SUPPRESS) ? 'S' : '.', | |
555 | (status & MXT_UNGRIP) ? 'U' : '.', | |
556 | x, y, area, pressure); | |
557 | ||
fba5bc31 DK |
558 | input_mt_slot(input_dev, id); |
559 | input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, | |
560 | status & MXT_DETECT); | |
561 | ||
562 | if (status & MXT_DETECT) { | |
563 | input_report_abs(input_dev, ABS_MT_POSITION_X, x); | |
564 | input_report_abs(input_dev, ABS_MT_POSITION_Y, y); | |
565 | input_report_abs(input_dev, ABS_MT_PRESSURE, pressure); | |
566 | input_report_abs(input_dev, ABS_MT_TOUCH_MAJOR, area); | |
567 | } | |
4cf51c38 | 568 | } |
4cf51c38 | 569 | |
fdf80421 DK |
570 | static unsigned mxt_extract_T6_csum(const u8 *csum) |
571 | { | |
572 | return csum[0] | (csum[1] << 8) | (csum[2] << 16); | |
573 | } | |
4cf51c38 | 574 | |
04a79181 DK |
575 | static bool mxt_is_T9_message(struct mxt_data *data, struct mxt_message *msg) |
576 | { | |
577 | u8 id = msg->reportid; | |
578 | return (id >= data->T9_reportid_min && id <= data->T9_reportid_max); | |
4cf51c38 JS |
579 | } |
580 | ||
7686b108 | 581 | static irqreturn_t mxt_interrupt(int irq, void *dev_id) |
4cf51c38 | 582 | { |
7686b108 IV |
583 | struct mxt_data *data = dev_id; |
584 | struct mxt_message message; | |
fdf80421 | 585 | const u8 *payload = &message.message[0]; |
4cf51c38 | 586 | struct device *dev = &data->client->dev; |
4cf51c38 | 587 | u8 reportid; |
64464ae8 | 588 | bool update_input = false; |
4cf51c38 JS |
589 | |
590 | do { | |
7686b108 | 591 | if (mxt_read_message(data, &message)) { |
4cf51c38 JS |
592 | dev_err(dev, "Failed to read message\n"); |
593 | goto end; | |
594 | } | |
595 | ||
596 | reportid = message.reportid; | |
597 | ||
fdf80421 DK |
598 | if (reportid == data->T6_reportid) { |
599 | u8 status = payload[0]; | |
600 | unsigned csum = mxt_extract_T6_csum(&payload[1]); | |
601 | dev_dbg(dev, "Status: %02x Config Checksum: %06x\n", | |
602 | status, csum); | |
603 | } else if (mxt_is_T9_message(data, &message)) { | |
604 | int id = reportid - data->T9_reportid_min; | |
7686b108 | 605 | mxt_input_touchevent(data, &message, id); |
64464ae8 | 606 | update_input = true; |
22dfab7f DK |
607 | } else if (message.reportid == data->T19_reportid) { |
608 | mxt_input_button(data, &message); | |
609 | update_input = true; | |
64464ae8 | 610 | } else { |
7686b108 | 611 | mxt_dump_message(dev, &message); |
64464ae8 | 612 | } |
4cf51c38 JS |
613 | } while (reportid != 0xff); |
614 | ||
64464ae8 DK |
615 | if (update_input) { |
616 | input_mt_report_pointer_emulation(data->input_dev, false); | |
617 | input_sync(data->input_dev); | |
618 | } | |
619 | ||
4cf51c38 JS |
620 | end: |
621 | return IRQ_HANDLED; | |
622 | } | |
623 | ||
7686b108 | 624 | static int mxt_check_reg_init(struct mxt_data *data) |
4cf51c38 | 625 | { |
71749f5c | 626 | const struct mxt_platform_data *pdata = data->pdata; |
7686b108 | 627 | struct mxt_object *object; |
4cf51c38 JS |
628 | struct device *dev = &data->client->dev; |
629 | int index = 0; | |
cf94bc09 DK |
630 | int i, size; |
631 | int ret; | |
4cf51c38 | 632 | |
71749f5c IV |
633 | if (!pdata->config) { |
634 | dev_dbg(dev, "No cfg data defined, skipping reg init\n"); | |
635 | return 0; | |
4cf51c38 JS |
636 | } |
637 | ||
638 | for (i = 0; i < data->info.object_num; i++) { | |
639 | object = data->object_table + i; | |
640 | ||
7686b108 | 641 | if (!mxt_object_writable(object->type)) |
4cf51c38 JS |
642 | continue; |
643 | ||
cf94bc09 DK |
644 | size = (object->size + 1) * (object->instances + 1); |
645 | if (index + size > pdata->config_length) { | |
646 | dev_err(dev, "Not enough config data!\n"); | |
647 | return -EINVAL; | |
71749f5c | 648 | } |
cf94bc09 DK |
649 | |
650 | ret = __mxt_write_reg(data->client, object->start_address, | |
651 | size, &pdata->config[index]); | |
652 | if (ret) | |
653 | return ret; | |
654 | index += size; | |
4cf51c38 JS |
655 | } |
656 | ||
657 | return 0; | |
658 | } | |
659 | ||
7686b108 | 660 | static int mxt_make_highchg(struct mxt_data *data) |
4cf51c38 JS |
661 | { |
662 | struct device *dev = &data->client->dev; | |
26cdb1ae | 663 | struct mxt_message message; |
4cf51c38 JS |
664 | int count = 10; |
665 | int error; | |
4cf51c38 JS |
666 | |
667 | /* Read dummy message to make high CHG pin */ | |
668 | do { | |
26cdb1ae | 669 | error = mxt_read_message(data, &message); |
4cf51c38 JS |
670 | if (error) |
671 | return error; | |
26cdb1ae | 672 | } while (message.reportid != 0xff && --count); |
4cf51c38 JS |
673 | |
674 | if (!count) { | |
675 | dev_err(dev, "CHG pin isn't cleared\n"); | |
676 | return -EBUSY; | |
677 | } | |
678 | ||
679 | return 0; | |
680 | } | |
681 | ||
7686b108 | 682 | static int mxt_get_info(struct mxt_data *data) |
4cf51c38 JS |
683 | { |
684 | struct i2c_client *client = data->client; | |
7686b108 | 685 | struct mxt_info *info = &data->info; |
4cf51c38 | 686 | int error; |
4cf51c38 | 687 | |
23003a84 DK |
688 | /* Read 7-byte info block starting at address 0 */ |
689 | error = __mxt_read_reg(client, MXT_INFO, sizeof(*info), info); | |
4cf51c38 JS |
690 | if (error) |
691 | return error; | |
4cf51c38 JS |
692 | |
693 | return 0; | |
694 | } | |
695 | ||
7686b108 | 696 | static int mxt_get_object_table(struct mxt_data *data) |
4cf51c38 | 697 | { |
333e5a9a DK |
698 | struct i2c_client *client = data->client; |
699 | size_t table_size; | |
4cf51c38 JS |
700 | int error; |
701 | int i; | |
333e5a9a DK |
702 | u8 reportid; |
703 | ||
704 | table_size = data->info.object_num * sizeof(struct mxt_object); | |
705 | error = __mxt_read_reg(client, MXT_OBJECT_START, table_size, | |
706 | data->object_table); | |
707 | if (error) | |
708 | return error; | |
4cf51c38 | 709 | |
333e5a9a DK |
710 | /* Valid Report IDs start counting from 1 */ |
711 | reportid = 1; | |
4cf51c38 | 712 | for (i = 0; i < data->info.object_num; i++) { |
7686b108 | 713 | struct mxt_object *object = data->object_table + i; |
333e5a9a | 714 | u8 min_id, max_id; |
4cf51c38 | 715 | |
333e5a9a | 716 | le16_to_cpus(&object->start_address); |
4cf51c38 JS |
717 | |
718 | if (object->num_report_ids) { | |
333e5a9a | 719 | min_id = reportid; |
4cf51c38 JS |
720 | reportid += object->num_report_ids * |
721 | (object->instances + 1); | |
333e5a9a DK |
722 | max_id = reportid - 1; |
723 | } else { | |
724 | min_id = 0; | |
725 | max_id = 0; | |
726 | } | |
727 | ||
728 | dev_dbg(&data->client->dev, | |
729 | "Type %2d Start %3d Size %3d Instances %2d ReportIDs %3u : %3u\n", | |
730 | object->type, object->start_address, object->size + 1, | |
731 | object->instances + 1, min_id, max_id); | |
732 | ||
733 | switch (object->type) { | |
fdf80421 DK |
734 | case MXT_GEN_COMMAND_T6: |
735 | data->T6_reportid = min_id; | |
736 | break; | |
333e5a9a DK |
737 | case MXT_TOUCH_MULTI_T9: |
738 | data->T9_reportid_min = min_id; | |
739 | data->T9_reportid_max = max_id; | |
740 | break; | |
22dfab7f DK |
741 | case MXT_SPT_GPIOPWM_T19: |
742 | data->T19_reportid = min_id; | |
743 | break; | |
4cf51c38 JS |
744 | } |
745 | } | |
746 | ||
747 | return 0; | |
748 | } | |
749 | ||
7d4fa100 DK |
750 | static void mxt_free_object_table(struct mxt_data *data) |
751 | { | |
752 | kfree(data->object_table); | |
753 | data->object_table = NULL; | |
fdf80421 | 754 | data->T6_reportid = 0; |
333e5a9a DK |
755 | data->T9_reportid_min = 0; |
756 | data->T9_reportid_max = 0; | |
22dfab7f | 757 | data->T19_reportid = 0; |
7d4fa100 DK |
758 | } |
759 | ||
7686b108 | 760 | static int mxt_initialize(struct mxt_data *data) |
4cf51c38 JS |
761 | { |
762 | struct i2c_client *client = data->client; | |
7686b108 | 763 | struct mxt_info *info = &data->info; |
4cf51c38 JS |
764 | int error; |
765 | u8 val; | |
766 | ||
7686b108 | 767 | error = mxt_get_info(data); |
4cf51c38 JS |
768 | if (error) |
769 | return error; | |
770 | ||
771 | data->object_table = kcalloc(info->object_num, | |
7686b108 | 772 | sizeof(struct mxt_object), |
4cf51c38 JS |
773 | GFP_KERNEL); |
774 | if (!data->object_table) { | |
775 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
776 | return -ENOMEM; | |
777 | } | |
778 | ||
779 | /* Get object table information */ | |
7686b108 | 780 | error = mxt_get_object_table(data); |
4cf51c38 | 781 | if (error) |
7d4fa100 | 782 | goto err_free_object_table; |
4cf51c38 JS |
783 | |
784 | /* Check register init values */ | |
7686b108 | 785 | error = mxt_check_reg_init(data); |
4cf51c38 | 786 | if (error) |
7d4fa100 | 787 | goto err_free_object_table; |
4cf51c38 | 788 | |
4cf51c38 | 789 | /* Backup to memory */ |
81c88a71 | 790 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
791 | MXT_COMMAND_BACKUPNV, |
792 | MXT_BACKUP_VALUE); | |
793 | msleep(MXT_BACKUP_TIME); | |
4cf51c38 JS |
794 | |
795 | /* Soft reset */ | |
81c88a71 | 796 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
797 | MXT_COMMAND_RESET, 1); |
798 | msleep(MXT_RESET_TIME); | |
4cf51c38 JS |
799 | |
800 | /* Update matrix size at info struct */ | |
7686b108 | 801 | error = mxt_read_reg(client, MXT_MATRIX_X_SIZE, &val); |
4cf51c38 | 802 | if (error) |
7d4fa100 | 803 | goto err_free_object_table; |
4cf51c38 JS |
804 | info->matrix_xsize = val; |
805 | ||
7686b108 | 806 | error = mxt_read_reg(client, MXT_MATRIX_Y_SIZE, &val); |
4cf51c38 | 807 | if (error) |
7d4fa100 | 808 | goto err_free_object_table; |
4cf51c38 JS |
809 | info->matrix_ysize = val; |
810 | ||
811 | dev_info(&client->dev, | |
e0e0269f DK |
812 | "Family ID: %u Variant ID: %u Major.Minor.Build: %u.%u.%02X\n", |
813 | info->family_id, info->variant_id, info->version >> 4, | |
814 | info->version & 0xf, info->build); | |
4cf51c38 JS |
815 | |
816 | dev_info(&client->dev, | |
e0e0269f | 817 | "Matrix X Size: %u Matrix Y Size: %u Object Num: %u\n", |
4cf51c38 JS |
818 | info->matrix_xsize, info->matrix_ysize, |
819 | info->object_num); | |
820 | ||
821 | return 0; | |
7d4fa100 DK |
822 | |
823 | err_free_object_table: | |
824 | mxt_free_object_table(data); | |
825 | return error; | |
4cf51c38 JS |
826 | } |
827 | ||
910d8051 JS |
828 | static void mxt_calc_resolution(struct mxt_data *data) |
829 | { | |
830 | unsigned int max_x = data->pdata->x_size - 1; | |
831 | unsigned int max_y = data->pdata->y_size - 1; | |
832 | ||
833 | if (data->pdata->orient & MXT_XY_SWITCH) { | |
834 | data->max_x = max_y; | |
835 | data->max_y = max_x; | |
836 | } else { | |
837 | data->max_x = max_x; | |
838 | data->max_y = max_y; | |
839 | } | |
840 | } | |
841 | ||
b19fc9ec DK |
842 | /* Firmware Version is returned as Major.Minor.Build */ |
843 | static ssize_t mxt_fw_version_show(struct device *dev, | |
844 | struct device_attribute *attr, char *buf) | |
845 | { | |
846 | struct mxt_data *data = dev_get_drvdata(dev); | |
847 | struct mxt_info *info = &data->info; | |
848 | return scnprintf(buf, PAGE_SIZE, "%u.%u.%02X\n", | |
849 | info->version >> 4, info->version & 0xf, info->build); | |
850 | } | |
851 | ||
852 | /* Hardware Version is returned as FamilyID.VariantID */ | |
853 | static ssize_t mxt_hw_version_show(struct device *dev, | |
854 | struct device_attribute *attr, char *buf) | |
855 | { | |
856 | struct mxt_data *data = dev_get_drvdata(dev); | |
857 | struct mxt_info *info = &data->info; | |
858 | return scnprintf(buf, PAGE_SIZE, "%u.%u\n", | |
859 | info->family_id, info->variant_id); | |
860 | } | |
861 | ||
794eb67e DK |
862 | static ssize_t mxt_show_instance(char *buf, int count, |
863 | struct mxt_object *object, int instance, | |
864 | const u8 *val) | |
865 | { | |
866 | int i; | |
867 | ||
868 | if (object->instances > 0) | |
869 | count += scnprintf(buf + count, PAGE_SIZE - count, | |
870 | "Instance %u\n", instance); | |
871 | ||
872 | for (i = 0; i < object->size + 1; i++) | |
873 | count += scnprintf(buf + count, PAGE_SIZE - count, | |
874 | "\t[%2u]: %02x (%d)\n", i, val[i], val[i]); | |
875 | count += scnprintf(buf + count, PAGE_SIZE - count, "\n"); | |
876 | ||
877 | return count; | |
878 | } | |
879 | ||
7686b108 | 880 | static ssize_t mxt_object_show(struct device *dev, |
4cf51c38 JS |
881 | struct device_attribute *attr, char *buf) |
882 | { | |
7686b108 IV |
883 | struct mxt_data *data = dev_get_drvdata(dev); |
884 | struct mxt_object *object; | |
4cf51c38 JS |
885 | int count = 0; |
886 | int i, j; | |
887 | int error; | |
43a91d51 | 888 | u8 *obuf; |
4cf51c38 | 889 | |
43a91d51 DK |
890 | /* Pre-allocate buffer large enough to hold max sized object. */ |
891 | obuf = kmalloc(256, GFP_KERNEL); | |
892 | if (!obuf) | |
893 | return -ENOMEM; | |
4cf51c38 | 894 | |
43a91d51 | 895 | error = 0; |
4cf51c38 JS |
896 | for (i = 0; i < data->info.object_num; i++) { |
897 | object = data->object_table + i; | |
898 | ||
91630955 | 899 | if (!mxt_object_readable(object->type)) |
4cf51c38 | 900 | continue; |
4cf51c38 | 901 | |
91630955 DK |
902 | count += scnprintf(buf + count, PAGE_SIZE - count, |
903 | "T%u:\n", object->type); | |
4cf51c38 | 904 | |
794eb67e DK |
905 | for (j = 0; j < object->instances + 1; j++) { |
906 | u16 size = object->size + 1; | |
907 | u16 addr = object->start_address + j * size; | |
43a91d51 | 908 | |
794eb67e | 909 | error = __mxt_read_reg(data->client, addr, size, obuf); |
4cf51c38 | 910 | if (error) |
794eb67e | 911 | goto done; |
4cf51c38 | 912 | |
794eb67e | 913 | count = mxt_show_instance(buf, count, object, j, obuf); |
4cf51c38 | 914 | } |
4cf51c38 JS |
915 | } |
916 | ||
794eb67e | 917 | done: |
43a91d51 DK |
918 | kfree(obuf); |
919 | return error ?: count; | |
4cf51c38 JS |
920 | } |
921 | ||
7686b108 | 922 | static int mxt_load_fw(struct device *dev, const char *fn) |
4cf51c38 | 923 | { |
7686b108 | 924 | struct mxt_data *data = dev_get_drvdata(dev); |
4cf51c38 JS |
925 | struct i2c_client *client = data->client; |
926 | const struct firmware *fw = NULL; | |
927 | unsigned int frame_size; | |
928 | unsigned int pos = 0; | |
929 | int ret; | |
930 | ||
931 | ret = request_firmware(&fw, fn, dev); | |
932 | if (ret) { | |
933 | dev_err(dev, "Unable to open firmware %s\n", fn); | |
934 | return ret; | |
935 | } | |
936 | ||
937 | /* Change to the bootloader mode */ | |
81c88a71 | 938 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 IV |
939 | MXT_COMMAND_RESET, MXT_BOOT_VALUE); |
940 | msleep(MXT_RESET_TIME); | |
4cf51c38 JS |
941 | |
942 | /* Change to slave address of bootloader */ | |
7686b108 IV |
943 | if (client->addr == MXT_APP_LOW) |
944 | client->addr = MXT_BOOT_LOW; | |
4cf51c38 | 945 | else |
7686b108 | 946 | client->addr = MXT_BOOT_HIGH; |
4cf51c38 | 947 | |
7686b108 | 948 | ret = mxt_check_bootloader(client, MXT_WAITING_BOOTLOAD_CMD); |
4cf51c38 JS |
949 | if (ret) |
950 | goto out; | |
951 | ||
952 | /* Unlock bootloader */ | |
7686b108 | 953 | mxt_unlock_bootloader(client); |
4cf51c38 JS |
954 | |
955 | while (pos < fw->size) { | |
7686b108 IV |
956 | ret = mxt_check_bootloader(client, |
957 | MXT_WAITING_FRAME_DATA); | |
4cf51c38 JS |
958 | if (ret) |
959 | goto out; | |
960 | ||
961 | frame_size = ((*(fw->data + pos) << 8) | *(fw->data + pos + 1)); | |
962 | ||
963 | /* We should add 2 at frame size as the the firmware data is not | |
964 | * included the CRC bytes. | |
965 | */ | |
966 | frame_size += 2; | |
967 | ||
968 | /* Write one frame to device */ | |
7686b108 | 969 | mxt_fw_write(client, fw->data + pos, frame_size); |
4cf51c38 | 970 | |
7686b108 IV |
971 | ret = mxt_check_bootloader(client, |
972 | MXT_FRAME_CRC_PASS); | |
4cf51c38 JS |
973 | if (ret) |
974 | goto out; | |
975 | ||
976 | pos += frame_size; | |
977 | ||
978 | dev_dbg(dev, "Updated %d bytes / %zd bytes\n", pos, fw->size); | |
979 | } | |
980 | ||
981 | out: | |
982 | release_firmware(fw); | |
983 | ||
984 | /* Change to slave address of application */ | |
7686b108 IV |
985 | if (client->addr == MXT_BOOT_LOW) |
986 | client->addr = MXT_APP_LOW; | |
4cf51c38 | 987 | else |
7686b108 | 988 | client->addr = MXT_APP_HIGH; |
4cf51c38 JS |
989 | |
990 | return ret; | |
991 | } | |
992 | ||
7686b108 | 993 | static ssize_t mxt_update_fw_store(struct device *dev, |
4cf51c38 JS |
994 | struct device_attribute *attr, |
995 | const char *buf, size_t count) | |
996 | { | |
7686b108 | 997 | struct mxt_data *data = dev_get_drvdata(dev); |
4cf51c38 JS |
998 | int error; |
999 | ||
4cf51c38 JS |
1000 | disable_irq(data->irq); |
1001 | ||
7686b108 | 1002 | error = mxt_load_fw(dev, MXT_FW_NAME); |
4cf51c38 JS |
1003 | if (error) { |
1004 | dev_err(dev, "The firmware update failed(%d)\n", error); | |
1005 | count = error; | |
1006 | } else { | |
1007 | dev_dbg(dev, "The firmware update succeeded\n"); | |
1008 | ||
1009 | /* Wait for reset */ | |
7686b108 | 1010 | msleep(MXT_FWRESET_TIME); |
4cf51c38 | 1011 | |
7d4fa100 | 1012 | mxt_free_object_table(data); |
4cf51c38 | 1013 | |
7686b108 | 1014 | mxt_initialize(data); |
4cf51c38 JS |
1015 | } |
1016 | ||
1017 | enable_irq(data->irq); | |
1018 | ||
08960a07 IV |
1019 | error = mxt_make_highchg(data); |
1020 | if (error) | |
1021 | return error; | |
1022 | ||
4cf51c38 JS |
1023 | return count; |
1024 | } | |
1025 | ||
b19fc9ec DK |
1026 | static DEVICE_ATTR(fw_version, S_IRUGO, mxt_fw_version_show, NULL); |
1027 | static DEVICE_ATTR(hw_version, S_IRUGO, mxt_hw_version_show, NULL); | |
71b3e938 DK |
1028 | static DEVICE_ATTR(object, S_IRUGO, mxt_object_show, NULL); |
1029 | static DEVICE_ATTR(update_fw, S_IWUSR, NULL, mxt_update_fw_store); | |
4cf51c38 | 1030 | |
7686b108 | 1031 | static struct attribute *mxt_attrs[] = { |
b19fc9ec DK |
1032 | &dev_attr_fw_version.attr, |
1033 | &dev_attr_hw_version.attr, | |
4cf51c38 JS |
1034 | &dev_attr_object.attr, |
1035 | &dev_attr_update_fw.attr, | |
1036 | NULL | |
1037 | }; | |
1038 | ||
7686b108 IV |
1039 | static const struct attribute_group mxt_attr_group = { |
1040 | .attrs = mxt_attrs, | |
4cf51c38 JS |
1041 | }; |
1042 | ||
7686b108 | 1043 | static void mxt_start(struct mxt_data *data) |
4cf51c38 JS |
1044 | { |
1045 | /* Touch enable */ | |
7686b108 | 1046 | mxt_write_object(data, |
81c88a71 | 1047 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0x83); |
4cf51c38 JS |
1048 | } |
1049 | ||
7686b108 | 1050 | static void mxt_stop(struct mxt_data *data) |
4cf51c38 JS |
1051 | { |
1052 | /* Touch disable */ | |
7686b108 | 1053 | mxt_write_object(data, |
81c88a71 | 1054 | MXT_TOUCH_MULTI_T9, MXT_TOUCH_CTRL, 0); |
4cf51c38 JS |
1055 | } |
1056 | ||
7686b108 | 1057 | static int mxt_input_open(struct input_dev *dev) |
4cf51c38 | 1058 | { |
7686b108 | 1059 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1060 | |
7686b108 | 1061 | mxt_start(data); |
4cf51c38 JS |
1062 | |
1063 | return 0; | |
1064 | } | |
1065 | ||
7686b108 | 1066 | static void mxt_input_close(struct input_dev *dev) |
4cf51c38 | 1067 | { |
7686b108 | 1068 | struct mxt_data *data = input_get_drvdata(dev); |
4cf51c38 | 1069 | |
7686b108 | 1070 | mxt_stop(data); |
4cf51c38 JS |
1071 | } |
1072 | ||
5298cc4c | 1073 | static int mxt_probe(struct i2c_client *client, |
4cf51c38 JS |
1074 | const struct i2c_device_id *id) |
1075 | { | |
c838cb3d | 1076 | const struct mxt_platform_data *pdata = dev_get_platdata(&client->dev); |
7686b108 | 1077 | struct mxt_data *data; |
4cf51c38 JS |
1078 | struct input_dev *input_dev; |
1079 | int error; | |
cb159115 | 1080 | unsigned int num_mt_slots; |
fb5e4c3e ND |
1081 | unsigned int mt_flags = 0; |
1082 | int i; | |
4cf51c38 | 1083 | |
919ed895 | 1084 | if (!pdata) |
4cf51c38 JS |
1085 | return -EINVAL; |
1086 | ||
7686b108 | 1087 | data = kzalloc(sizeof(struct mxt_data), GFP_KERNEL); |
4cf51c38 JS |
1088 | input_dev = input_allocate_device(); |
1089 | if (!data || !input_dev) { | |
1090 | dev_err(&client->dev, "Failed to allocate memory\n"); | |
1091 | error = -ENOMEM; | |
1092 | goto err_free_mem; | |
1093 | } | |
1094 | ||
fb5e4c3e | 1095 | input_dev->name = "Atmel maXTouch Touchscreen"; |
ec02ac2b DK |
1096 | snprintf(data->phys, sizeof(data->phys), "i2c-%u-%04x/input0", |
1097 | client->adapter->nr, client->addr); | |
22dfab7f | 1098 | |
ec02ac2b DK |
1099 | input_dev->phys = data->phys; |
1100 | ||
4cf51c38 JS |
1101 | input_dev->id.bustype = BUS_I2C; |
1102 | input_dev->dev.parent = &client->dev; | |
7686b108 IV |
1103 | input_dev->open = mxt_input_open; |
1104 | input_dev->close = mxt_input_close; | |
4cf51c38 | 1105 | |
910d8051 JS |
1106 | data->client = client; |
1107 | data->input_dev = input_dev; | |
1108 | data->pdata = pdata; | |
1109 | data->irq = client->irq; | |
1110 | ||
1111 | mxt_calc_resolution(data); | |
1112 | ||
cb159115 DK |
1113 | error = mxt_initialize(data); |
1114 | if (error) | |
1115 | goto err_free_mem; | |
1116 | ||
4cf51c38 JS |
1117 | __set_bit(EV_ABS, input_dev->evbit); |
1118 | __set_bit(EV_KEY, input_dev->evbit); | |
1119 | __set_bit(BTN_TOUCH, input_dev->keybit); | |
1120 | ||
fb5e4c3e | 1121 | if (pdata->t19_num_keys) { |
22dfab7f DK |
1122 | __set_bit(INPUT_PROP_BUTTONPAD, input_dev->propbit); |
1123 | ||
fb5e4c3e ND |
1124 | for (i = 0; i < pdata->t19_num_keys; i++) |
1125 | if (pdata->t19_keymap[i] != KEY_RESERVED) | |
1126 | input_set_capability(input_dev, EV_KEY, | |
1127 | pdata->t19_keymap[i]); | |
22dfab7f | 1128 | |
fb5e4c3e | 1129 | mt_flags |= INPUT_MT_POINTER; |
22dfab7f DK |
1130 | |
1131 | input_abs_set_res(input_dev, ABS_X, MXT_PIXELS_PER_MM); | |
1132 | input_abs_set_res(input_dev, ABS_Y, MXT_PIXELS_PER_MM); | |
1133 | input_abs_set_res(input_dev, ABS_MT_POSITION_X, | |
1134 | MXT_PIXELS_PER_MM); | |
1135 | input_abs_set_res(input_dev, ABS_MT_POSITION_Y, | |
1136 | MXT_PIXELS_PER_MM); | |
fb5e4c3e ND |
1137 | |
1138 | input_dev->name = "Atmel maXTouch Touchpad"; | |
22dfab7f DK |
1139 | } |
1140 | ||
4cf51c38 JS |
1141 | /* For single touch */ |
1142 | input_set_abs_params(input_dev, ABS_X, | |
910d8051 | 1143 | 0, data->max_x, 0, 0); |
4cf51c38 | 1144 | input_set_abs_params(input_dev, ABS_Y, |
910d8051 | 1145 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1146 | input_set_abs_params(input_dev, ABS_PRESSURE, |
1147 | 0, 255, 0, 0); | |
4cf51c38 JS |
1148 | |
1149 | /* For multi touch */ | |
cb159115 | 1150 | num_mt_slots = data->T9_reportid_max - data->T9_reportid_min + 1; |
fb5e4c3e | 1151 | error = input_mt_init_slots(input_dev, num_mt_slots, mt_flags); |
e1e1658d | 1152 | if (error) |
cb159115 | 1153 | goto err_free_object; |
4cf51c38 | 1154 | input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, |
7686b108 | 1155 | 0, MXT_MAX_AREA, 0, 0); |
4cf51c38 | 1156 | input_set_abs_params(input_dev, ABS_MT_POSITION_X, |
910d8051 | 1157 | 0, data->max_x, 0, 0); |
4cf51c38 | 1158 | input_set_abs_params(input_dev, ABS_MT_POSITION_Y, |
910d8051 | 1159 | 0, data->max_y, 0, 0); |
28ac2933 YS |
1160 | input_set_abs_params(input_dev, ABS_MT_PRESSURE, |
1161 | 0, 255, 0, 0); | |
4cf51c38 JS |
1162 | |
1163 | input_set_drvdata(input_dev, data); | |
4cf51c38 JS |
1164 | i2c_set_clientdata(client, data); |
1165 | ||
7686b108 | 1166 | error = request_threaded_irq(client->irq, NULL, mxt_interrupt, |
9b7e31bb | 1167 | pdata->irqflags | IRQF_ONESHOT, |
f053ea8d | 1168 | client->name, data); |
4cf51c38 JS |
1169 | if (error) { |
1170 | dev_err(&client->dev, "Failed to register interrupt\n"); | |
1171 | goto err_free_object; | |
1172 | } | |
1173 | ||
08960a07 IV |
1174 | error = mxt_make_highchg(data); |
1175 | if (error) | |
1176 | goto err_free_irq; | |
1177 | ||
4cf51c38 JS |
1178 | error = input_register_device(input_dev); |
1179 | if (error) | |
1180 | goto err_free_irq; | |
1181 | ||
7686b108 | 1182 | error = sysfs_create_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 JS |
1183 | if (error) |
1184 | goto err_unregister_device; | |
1185 | ||
1186 | return 0; | |
1187 | ||
1188 | err_unregister_device: | |
1189 | input_unregister_device(input_dev); | |
1190 | input_dev = NULL; | |
1191 | err_free_irq: | |
1192 | free_irq(client->irq, data); | |
1193 | err_free_object: | |
1194 | kfree(data->object_table); | |
1195 | err_free_mem: | |
1196 | input_free_device(input_dev); | |
1197 | kfree(data); | |
1198 | return error; | |
1199 | } | |
1200 | ||
e2619cf7 | 1201 | static int mxt_remove(struct i2c_client *client) |
4cf51c38 | 1202 | { |
7686b108 | 1203 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 | 1204 | |
7686b108 | 1205 | sysfs_remove_group(&client->dev.kobj, &mxt_attr_group); |
4cf51c38 JS |
1206 | free_irq(data->irq, data); |
1207 | input_unregister_device(data->input_dev); | |
1208 | kfree(data->object_table); | |
1209 | kfree(data); | |
1210 | ||
1211 | return 0; | |
1212 | } | |
1213 | ||
3a73c816 | 1214 | #ifdef CONFIG_PM_SLEEP |
7686b108 | 1215 | static int mxt_suspend(struct device *dev) |
4cf51c38 | 1216 | { |
8b5fce06 | 1217 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1218 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1219 | struct input_dev *input_dev = data->input_dev; |
1220 | ||
1221 | mutex_lock(&input_dev->mutex); | |
1222 | ||
1223 | if (input_dev->users) | |
7686b108 | 1224 | mxt_stop(data); |
4cf51c38 JS |
1225 | |
1226 | mutex_unlock(&input_dev->mutex); | |
1227 | ||
1228 | return 0; | |
1229 | } | |
1230 | ||
7686b108 | 1231 | static int mxt_resume(struct device *dev) |
4cf51c38 | 1232 | { |
8b5fce06 | 1233 | struct i2c_client *client = to_i2c_client(dev); |
7686b108 | 1234 | struct mxt_data *data = i2c_get_clientdata(client); |
4cf51c38 JS |
1235 | struct input_dev *input_dev = data->input_dev; |
1236 | ||
1237 | /* Soft reset */ | |
81c88a71 | 1238 | mxt_write_object(data, MXT_GEN_COMMAND_T6, |
7686b108 | 1239 | MXT_COMMAND_RESET, 1); |
4cf51c38 | 1240 | |
7686b108 | 1241 | msleep(MXT_RESET_TIME); |
4cf51c38 JS |
1242 | |
1243 | mutex_lock(&input_dev->mutex); | |
1244 | ||
1245 | if (input_dev->users) | |
7686b108 | 1246 | mxt_start(data); |
4cf51c38 JS |
1247 | |
1248 | mutex_unlock(&input_dev->mutex); | |
1249 | ||
1250 | return 0; | |
1251 | } | |
4cf51c38 JS |
1252 | #endif |
1253 | ||
3a73c816 DK |
1254 | static SIMPLE_DEV_PM_OPS(mxt_pm_ops, mxt_suspend, mxt_resume); |
1255 | ||
7686b108 | 1256 | static const struct i2c_device_id mxt_id[] = { |
4cf51c38 | 1257 | { "qt602240_ts", 0 }, |
7686b108 | 1258 | { "atmel_mxt_ts", 0 }, |
22dfab7f | 1259 | { "atmel_mxt_tp", 0 }, |
46ee2a05 | 1260 | { "mXT224", 0 }, |
4cf51c38 JS |
1261 | { } |
1262 | }; | |
7686b108 | 1263 | MODULE_DEVICE_TABLE(i2c, mxt_id); |
4cf51c38 | 1264 | |
7686b108 | 1265 | static struct i2c_driver mxt_driver = { |
4cf51c38 | 1266 | .driver = { |
7686b108 | 1267 | .name = "atmel_mxt_ts", |
4cf51c38 | 1268 | .owner = THIS_MODULE, |
7686b108 | 1269 | .pm = &mxt_pm_ops, |
4cf51c38 | 1270 | }, |
7686b108 | 1271 | .probe = mxt_probe, |
1cb0aa88 | 1272 | .remove = mxt_remove, |
7686b108 | 1273 | .id_table = mxt_id, |
4cf51c38 JS |
1274 | }; |
1275 | ||
1b92c1cf | 1276 | module_i2c_driver(mxt_driver); |
4cf51c38 JS |
1277 | |
1278 | /* Module information */ | |
1279 | MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); | |
7686b108 | 1280 | MODULE_DESCRIPTION("Atmel maXTouch Touchscreen driver"); |
4cf51c38 | 1281 | MODULE_LICENSE("GPL"); |