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15#include "cyttsp4_core.h"
16#include <linux/delay.h>
17#include <linux/gpio.h>
18#include <linux/input/mt.h>
19#include <linux/interrupt.h>
20#include <linux/pm_runtime.h>
21#include <linux/sched.h>
22#include <linux/slab.h>
23
24
25#define CY_CORE_REQUEST_EXCLUSIVE_TIMEOUT 500
26#define CY_CORE_SLEEP_REQUEST_EXCLUSIVE_TIMEOUT 5000
27#define CY_CORE_MODE_CHANGE_TIMEOUT 1000
28#define CY_CORE_RESET_AND_WAIT_TIMEOUT 500
29#define CY_CORE_WAKEUP_TIMEOUT 500
30
31#define CY_CORE_STARTUP_RETRY_COUNT 3
32
33static const u8 ldr_exit[] = {
34 0xFF, 0x01, 0x3B, 0x00, 0x00, 0x4F, 0x6D, 0x17
35};
36
37static const u8 ldr_err_app[] = {
38 0x01, 0x02, 0x00, 0x00, 0x55, 0xDD, 0x17
39};
40
41static inline size_t merge_bytes(u8 high, u8 low)
42{
43 return (high << 8) + low;
44}
45
46#ifdef VERBOSE_DEBUG
47static void cyttsp4_pr_buf(struct device *dev, u8 *pr_buf, u8 *dptr, int size,
48 const char *data_name)
49{
50 int i, k;
51 const char fmt[] = "%02X ";
52 int max;
53
54 if (!size)
55 return;
56
57 max = (CY_MAX_PRBUF_SIZE - 1) - sizeof(CY_PR_TRUNCATED);
58
59 pr_buf[0] = 0;
60 for (i = k = 0; i < size && k < max; i++, k += 3)
61 scnprintf(pr_buf + k, CY_MAX_PRBUF_SIZE, fmt, dptr[i]);
62
63 dev_vdbg(dev, "%s: %s[0..%d]=%s%s\n", __func__, data_name, size - 1,
64 pr_buf, size <= max ? "" : CY_PR_TRUNCATED);
65}
66#else
67#define cyttsp4_pr_buf(dev, pr_buf, dptr, size, data_name) do { } while (0)
68#endif
69
70static int cyttsp4_load_status_regs(struct cyttsp4 *cd)
71{
72 struct cyttsp4_sysinfo *si = &cd->sysinfo;
73 struct device *dev = cd->dev;
74 int rc;
75
76 rc = cyttsp4_adap_read(cd, CY_REG_BASE, si->si_ofs.mode_size,
77 si->xy_mode);
78 if (rc < 0)
79 dev_err(dev, "%s: fail read mode regs r=%d\n",
80 __func__, rc);
81 else
82 cyttsp4_pr_buf(dev, cd->pr_buf, si->xy_mode,
83 si->si_ofs.mode_size, "xy_mode");
84
85 return rc;
86}
87
88static int cyttsp4_handshake(struct cyttsp4 *cd, u8 mode)
89{
90 u8 cmd = mode ^ CY_HST_TOGGLE;
91 int rc;
92
93
94
95
96
97 if (mode & CY_HST_MODE_CHANGE)
98 return 0;
99
100 rc = cyttsp4_adap_write(cd, CY_REG_BASE, sizeof(cmd), &cmd);
101 if (rc < 0)
102 dev_err(cd->dev, "%s: bus write fail on handshake (ret=%d)\n",
103 __func__, rc);
104
105 return rc;
106}
107
108static int cyttsp4_hw_soft_reset(struct cyttsp4 *cd)
109{
110 u8 cmd = CY_HST_RESET;
111 int rc = cyttsp4_adap_write(cd, CY_REG_BASE, sizeof(cmd), &cmd);
112 if (rc < 0) {
113 dev_err(cd->dev, "%s: FAILED to execute SOFT reset\n",
114 __func__);
115 return rc;
116 }
117 return 0;
118}
119
120static int cyttsp4_hw_hard_reset(struct cyttsp4 *cd)
121{
122 if (cd->cpdata->xres) {
123 cd->cpdata->xres(cd->cpdata, cd->dev);
124 dev_dbg(cd->dev, "%s: execute HARD reset\n", __func__);
125 return 0;
126 }
127 dev_err(cd->dev, "%s: FAILED to execute HARD reset\n", __func__);
128 return -ENOSYS;
129}
130
131static int cyttsp4_hw_reset(struct cyttsp4 *cd)
132{
133 int rc = cyttsp4_hw_hard_reset(cd);
134 if (rc == -ENOSYS)
135 rc = cyttsp4_hw_soft_reset(cd);
136 return rc;
137}
138
139
140
141
142
143
144static int cyttsp4_bits_2_bytes(unsigned int nbits, size_t *max)
145{
146 *max = 1UL << nbits;
147 return (nbits + 7) / 8;
148}
149
150static int cyttsp4_si_data_offsets(struct cyttsp4 *cd)
151{
152 struct cyttsp4_sysinfo *si = &cd->sysinfo;
153 int rc = cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(si->si_data),
154 &si->si_data);
155 if (rc < 0) {
156 dev_err(cd->dev, "%s: fail read sysinfo data offsets r=%d\n",
157 __func__, rc);
158 return rc;
159 }
160
161
162 cyttsp4_pr_buf(cd->dev, cd->pr_buf, (u8 *)&si->si_data,
163 sizeof(si->si_data), "sysinfo_data_offsets");
164
165
166
167 si->si_ofs.map_sz = merge_bytes(si->si_data.map_szh,
168 si->si_data.map_szl);
169 si->si_ofs.map_sz = merge_bytes(si->si_data.map_szh,
170 si->si_data.map_szl);
171 si->si_ofs.cydata_ofs = merge_bytes(si->si_data.cydata_ofsh,
172 si->si_data.cydata_ofsl);
173 si->si_ofs.test_ofs = merge_bytes(si->si_data.test_ofsh,
174 si->si_data.test_ofsl);
175 si->si_ofs.pcfg_ofs = merge_bytes(si->si_data.pcfg_ofsh,
176 si->si_data.pcfg_ofsl);
177 si->si_ofs.opcfg_ofs = merge_bytes(si->si_data.opcfg_ofsh,
178 si->si_data.opcfg_ofsl);
179 si->si_ofs.ddata_ofs = merge_bytes(si->si_data.ddata_ofsh,
180 si->si_data.ddata_ofsl);
181 si->si_ofs.mdata_ofs = merge_bytes(si->si_data.mdata_ofsh,
182 si->si_data.mdata_ofsl);
183 return rc;
184}
185
186static int cyttsp4_si_get_cydata(struct cyttsp4 *cd)
187{
188 struct cyttsp4_sysinfo *si = &cd->sysinfo;
189 int read_offset;
190 int mfgid_sz, calc_mfgid_sz;
191 void *p;
192 int rc;
193
194 if (si->si_ofs.test_ofs <= si->si_ofs.cydata_ofs) {
195 dev_err(cd->dev,
196 "%s: invalid offset test_ofs: %zu, cydata_ofs: %zu\n",
197 __func__, si->si_ofs.test_ofs, si->si_ofs.cydata_ofs);
198 return -EINVAL;
199 }
200
201 si->si_ofs.cydata_size = si->si_ofs.test_ofs - si->si_ofs.cydata_ofs;
202 dev_dbg(cd->dev, "%s: cydata size: %zd\n", __func__,
203 si->si_ofs.cydata_size);
204
205 p = krealloc(si->si_ptrs.cydata, si->si_ofs.cydata_size, GFP_KERNEL);
206 if (p == NULL) {
207 dev_err(cd->dev, "%s: failed to allocate cydata memory\n",
208 __func__);
209 return -ENOMEM;
210 }
211 si->si_ptrs.cydata = p;
212
213 read_offset = si->si_ofs.cydata_ofs;
214
215
216 rc = cyttsp4_adap_read(cd, read_offset,
217 offsetof(struct cyttsp4_cydata, mfgid_sz)
218 + sizeof(si->si_ptrs.cydata->mfgid_sz),
219 si->si_ptrs.cydata);
220 if (rc < 0) {
221 dev_err(cd->dev, "%s: fail read cydata r=%d\n",
222 __func__, rc);
223 return rc;
224 }
225
226
227 mfgid_sz = si->si_ptrs.cydata->mfgid_sz;
228 calc_mfgid_sz = si->si_ofs.cydata_size - sizeof(struct cyttsp4_cydata);
229 if (mfgid_sz != calc_mfgid_sz) {
230 dev_err(cd->dev, "%s: mismatch in MFGID size, reported:%d calculated:%d\n",
231 __func__, mfgid_sz, calc_mfgid_sz);
232 return -EINVAL;
233 }
234
235 read_offset += offsetof(struct cyttsp4_cydata, mfgid_sz)
236 + sizeof(si->si_ptrs.cydata->mfgid_sz);
237
238
239 rc = cyttsp4_adap_read(cd, read_offset, si->si_ptrs.cydata->mfgid_sz,
240 si->si_ptrs.cydata->mfg_id);
241 if (rc < 0) {
242 dev_err(cd->dev, "%s: fail read cydata r=%d\n",
243 __func__, rc);
244 return rc;
245 }
246
247 read_offset += si->si_ptrs.cydata->mfgid_sz;
248
249
250 rc = cyttsp4_adap_read(cd, read_offset,
251 sizeof(struct cyttsp4_cydata)
252 - offsetof(struct cyttsp4_cydata, cyito_idh),
253 &si->si_ptrs.cydata->cyito_idh);
254 if (rc < 0) {
255 dev_err(cd->dev, "%s: fail read cydata r=%d\n",
256 __func__, rc);
257 return rc;
258 }
259
260 cyttsp4_pr_buf(cd->dev, cd->pr_buf, (u8 *)si->si_ptrs.cydata,
261 si->si_ofs.cydata_size, "sysinfo_cydata");
262 return rc;
263}
264
265static int cyttsp4_si_get_test_data(struct cyttsp4 *cd)
266{
267 struct cyttsp4_sysinfo *si = &cd->sysinfo;
268 void *p;
269 int rc;
270
271 if (si->si_ofs.pcfg_ofs <= si->si_ofs.test_ofs) {
272 dev_err(cd->dev,
273 "%s: invalid offset pcfg_ofs: %zu, test_ofs: %zu\n",
274 __func__, si->si_ofs.pcfg_ofs, si->si_ofs.test_ofs);
275 return -EINVAL;
276 }
277
278 si->si_ofs.test_size = si->si_ofs.pcfg_ofs - si->si_ofs.test_ofs;
279
280 p = krealloc(si->si_ptrs.test, si->si_ofs.test_size, GFP_KERNEL);
281 if (p == NULL) {
282 dev_err(cd->dev, "%s: failed to allocate test memory\n",
283 __func__);
284 return -ENOMEM;
285 }
286 si->si_ptrs.test = p;
287
288 rc = cyttsp4_adap_read(cd, si->si_ofs.test_ofs, si->si_ofs.test_size,
289 si->si_ptrs.test);
290 if (rc < 0) {
291 dev_err(cd->dev, "%s: fail read test data r=%d\n",
292 __func__, rc);
293 return rc;
294 }
295
296 cyttsp4_pr_buf(cd->dev, cd->pr_buf,
297 (u8 *)si->si_ptrs.test, si->si_ofs.test_size,
298 "sysinfo_test_data");
299 if (si->si_ptrs.test->post_codel &
300 CY_POST_CODEL_WDG_RST)
301 dev_info(cd->dev, "%s: %s codel=%02X\n",
302 __func__, "Reset was a WATCHDOG RESET",
303 si->si_ptrs.test->post_codel);
304
305 if (!(si->si_ptrs.test->post_codel &
306 CY_POST_CODEL_CFG_DATA_CRC_FAIL))
307 dev_info(cd->dev, "%s: %s codel=%02X\n", __func__,
308 "Config Data CRC FAIL",
309 si->si_ptrs.test->post_codel);
310
311 if (!(si->si_ptrs.test->post_codel &
312 CY_POST_CODEL_PANEL_TEST_FAIL))
313 dev_info(cd->dev, "%s: %s codel=%02X\n",
314 __func__, "PANEL TEST FAIL",
315 si->si_ptrs.test->post_codel);
316
317 dev_info(cd->dev, "%s: SCANNING is %s codel=%02X\n",
318 __func__, si->si_ptrs.test->post_codel & 0x08 ?
319 "ENABLED" : "DISABLED",
320 si->si_ptrs.test->post_codel);
321 return rc;
322}
323
324static int cyttsp4_si_get_pcfg_data(struct cyttsp4 *cd)
325{
326 struct cyttsp4_sysinfo *si = &cd->sysinfo;
327 void *p;
328 int rc;
329
330 if (si->si_ofs.opcfg_ofs <= si->si_ofs.pcfg_ofs) {
331 dev_err(cd->dev,
332 "%s: invalid offset opcfg_ofs: %zu, pcfg_ofs: %zu\n",
333 __func__, si->si_ofs.opcfg_ofs, si->si_ofs.pcfg_ofs);
334 return -EINVAL;
335 }
336
337 si->si_ofs.pcfg_size = si->si_ofs.opcfg_ofs - si->si_ofs.pcfg_ofs;
338
339 p = krealloc(si->si_ptrs.pcfg, si->si_ofs.pcfg_size, GFP_KERNEL);
340 if (p == NULL) {
341 dev_err(cd->dev, "%s: failed to allocate pcfg memory\n",
342 __func__);
343 return -ENOMEM;
344 }
345 si->si_ptrs.pcfg = p;
346
347 rc = cyttsp4_adap_read(cd, si->si_ofs.pcfg_ofs, si->si_ofs.pcfg_size,
348 si->si_ptrs.pcfg);
349 if (rc < 0) {
350 dev_err(cd->dev, "%s: fail read pcfg data r=%d\n",
351 __func__, rc);
352 return rc;
353 }
354
355 si->si_ofs.max_x = merge_bytes((si->si_ptrs.pcfg->res_xh
356 & CY_PCFG_RESOLUTION_X_MASK), si->si_ptrs.pcfg->res_xl);
357 si->si_ofs.x_origin = !!(si->si_ptrs.pcfg->res_xh
358 & CY_PCFG_ORIGIN_X_MASK);
359 si->si_ofs.max_y = merge_bytes((si->si_ptrs.pcfg->res_yh
360 & CY_PCFG_RESOLUTION_Y_MASK), si->si_ptrs.pcfg->res_yl);
361 si->si_ofs.y_origin = !!(si->si_ptrs.pcfg->res_yh
362 & CY_PCFG_ORIGIN_Y_MASK);
363 si->si_ofs.max_p = merge_bytes(si->si_ptrs.pcfg->max_zh,
364 si->si_ptrs.pcfg->max_zl);
365
366 cyttsp4_pr_buf(cd->dev, cd->pr_buf,
367 (u8 *)si->si_ptrs.pcfg,
368 si->si_ofs.pcfg_size, "sysinfo_pcfg_data");
369 return rc;
370}
371
372static int cyttsp4_si_get_opcfg_data(struct cyttsp4 *cd)
373{
374 struct cyttsp4_sysinfo *si = &cd->sysinfo;
375 struct cyttsp4_tch_abs_params *tch;
376 struct cyttsp4_tch_rec_params *tch_old, *tch_new;
377 enum cyttsp4_tch_abs abs;
378 int i;
379 void *p;
380 int rc;
381
382 if (si->si_ofs.ddata_ofs <= si->si_ofs.opcfg_ofs) {
383 dev_err(cd->dev,
384 "%s: invalid offset ddata_ofs: %zu, opcfg_ofs: %zu\n",
385 __func__, si->si_ofs.ddata_ofs, si->si_ofs.opcfg_ofs);
386 return -EINVAL;
387 }
388
389 si->si_ofs.opcfg_size = si->si_ofs.ddata_ofs - si->si_ofs.opcfg_ofs;
390
391 p = krealloc(si->si_ptrs.opcfg, si->si_ofs.opcfg_size, GFP_KERNEL);
392 if (p == NULL) {
393 dev_err(cd->dev, "%s: failed to allocate opcfg memory\n",
394 __func__);
395 return -ENOMEM;
396 }
397 si->si_ptrs.opcfg = p;
398
399 rc = cyttsp4_adap_read(cd, si->si_ofs.opcfg_ofs, si->si_ofs.opcfg_size,
400 si->si_ptrs.opcfg);
401 if (rc < 0) {
402 dev_err(cd->dev, "%s: fail read opcfg data r=%d\n",
403 __func__, rc);
404 return rc;
405 }
406 si->si_ofs.cmd_ofs = si->si_ptrs.opcfg->cmd_ofs;
407 si->si_ofs.rep_ofs = si->si_ptrs.opcfg->rep_ofs;
408 si->si_ofs.rep_sz = (si->si_ptrs.opcfg->rep_szh * 256) +
409 si->si_ptrs.opcfg->rep_szl;
410 si->si_ofs.num_btns = si->si_ptrs.opcfg->num_btns;
411 si->si_ofs.num_btn_regs = (si->si_ofs.num_btns +
412 CY_NUM_BTN_PER_REG - 1) / CY_NUM_BTN_PER_REG;
413 si->si_ofs.tt_stat_ofs = si->si_ptrs.opcfg->tt_stat_ofs;
414 si->si_ofs.obj_cfg0 = si->si_ptrs.opcfg->obj_cfg0;
415 si->si_ofs.max_tchs = si->si_ptrs.opcfg->max_tchs &
416 CY_BYTE_OFS_MASK;
417 si->si_ofs.tch_rec_size = si->si_ptrs.opcfg->tch_rec_size &
418 CY_BYTE_OFS_MASK;
419
420
421 for (abs = CY_TCH_X; abs < CY_NUM_TCH_FIELDS; abs++) {
422 tch = &si->si_ofs.tch_abs[abs];
423 tch_old = &si->si_ptrs.opcfg->tch_rec_old[abs];
424
425 tch->ofs = tch_old->loc & CY_BYTE_OFS_MASK;
426 tch->size = cyttsp4_bits_2_bytes(tch_old->size,
427 &tch->max);
428 tch->bofs = (tch_old->loc & CY_BOFS_MASK) >> CY_BOFS_SHIFT;
429 }
430
431
432 si->si_ofs.btn_rec_size = si->si_ptrs.opcfg->btn_rec_size;
433 si->si_ofs.btn_diff_ofs = si->si_ptrs.opcfg->btn_diff_ofs;
434 si->si_ofs.btn_diff_size = si->si_ptrs.opcfg->btn_diff_size;
435
436 if (si->si_ofs.tch_rec_size > CY_TMA1036_TCH_REC_SIZE) {
437
438 for (i = 0; i < CY_NUM_EXT_TCH_FIELDS; abs++, i++) {
439 tch = &si->si_ofs.tch_abs[abs];
440 tch_new = &si->si_ptrs.opcfg->tch_rec_new[i];
441
442 tch->ofs = tch_new->loc & CY_BYTE_OFS_MASK;
443 tch->size = cyttsp4_bits_2_bytes(tch_new->size,
444 &tch->max);
445 tch->bofs = (tch_new->loc & CY_BOFS_MASK) >> CY_BOFS_SHIFT;
446 }
447 }
448
449 for (abs = 0; abs < CY_TCH_NUM_ABS; abs++) {
450 dev_dbg(cd->dev, "%s: tch_rec_%s\n", __func__,
451 cyttsp4_tch_abs_string[abs]);
452 dev_dbg(cd->dev, "%s: ofs =%2zd\n", __func__,
453 si->si_ofs.tch_abs[abs].ofs);
454 dev_dbg(cd->dev, "%s: siz =%2zd\n", __func__,
455 si->si_ofs.tch_abs[abs].size);
456 dev_dbg(cd->dev, "%s: max =%2zd\n", __func__,
457 si->si_ofs.tch_abs[abs].max);
458 dev_dbg(cd->dev, "%s: bofs=%2zd\n", __func__,
459 si->si_ofs.tch_abs[abs].bofs);
460 }
461
462 si->si_ofs.mode_size = si->si_ofs.tt_stat_ofs + 1;
463 si->si_ofs.data_size = si->si_ofs.max_tchs *
464 si->si_ptrs.opcfg->tch_rec_size;
465
466 cyttsp4_pr_buf(cd->dev, cd->pr_buf, (u8 *)si->si_ptrs.opcfg,
467 si->si_ofs.opcfg_size, "sysinfo_opcfg_data");
468
469 return 0;
470}
471
472static int cyttsp4_si_get_ddata(struct cyttsp4 *cd)
473{
474 struct cyttsp4_sysinfo *si = &cd->sysinfo;
475 void *p;
476 int rc;
477
478 si->si_ofs.ddata_size = si->si_ofs.mdata_ofs - si->si_ofs.ddata_ofs;
479
480 p = krealloc(si->si_ptrs.ddata, si->si_ofs.ddata_size, GFP_KERNEL);
481 if (p == NULL) {
482 dev_err(cd->dev, "%s: fail alloc ddata memory\n", __func__);
483 return -ENOMEM;
484 }
485 si->si_ptrs.ddata = p;
486
487 rc = cyttsp4_adap_read(cd, si->si_ofs.ddata_ofs, si->si_ofs.ddata_size,
488 si->si_ptrs.ddata);
489 if (rc < 0)
490 dev_err(cd->dev, "%s: fail read ddata data r=%d\n",
491 __func__, rc);
492 else
493 cyttsp4_pr_buf(cd->dev, cd->pr_buf,
494 (u8 *)si->si_ptrs.ddata,
495 si->si_ofs.ddata_size, "sysinfo_ddata");
496 return rc;
497}
498
499static int cyttsp4_si_get_mdata(struct cyttsp4 *cd)
500{
501 struct cyttsp4_sysinfo *si = &cd->sysinfo;
502 void *p;
503 int rc;
504
505 si->si_ofs.mdata_size = si->si_ofs.map_sz - si->si_ofs.mdata_ofs;
506
507 p = krealloc(si->si_ptrs.mdata, si->si_ofs.mdata_size, GFP_KERNEL);
508 if (p == NULL) {
509 dev_err(cd->dev, "%s: fail alloc mdata memory\n", __func__);
510 return -ENOMEM;
511 }
512 si->si_ptrs.mdata = p;
513
514 rc = cyttsp4_adap_read(cd, si->si_ofs.mdata_ofs, si->si_ofs.mdata_size,
515 si->si_ptrs.mdata);
516 if (rc < 0)
517 dev_err(cd->dev, "%s: fail read mdata data r=%d\n",
518 __func__, rc);
519 else
520 cyttsp4_pr_buf(cd->dev, cd->pr_buf,
521 (u8 *)si->si_ptrs.mdata,
522 si->si_ofs.mdata_size, "sysinfo_mdata");
523 return rc;
524}
525
526static int cyttsp4_si_get_btn_data(struct cyttsp4 *cd)
527{
528 struct cyttsp4_sysinfo *si = &cd->sysinfo;
529 int btn;
530 int num_defined_keys;
531 u16 *key_table;
532 void *p;
533 int rc = 0;
534
535 if (si->si_ofs.num_btns) {
536 si->si_ofs.btn_keys_size = si->si_ofs.num_btns *
537 sizeof(struct cyttsp4_btn);
538
539 p = krealloc(si->btn, si->si_ofs.btn_keys_size,
540 GFP_KERNEL|__GFP_ZERO);
541 if (p == NULL) {
542 dev_err(cd->dev, "%s: %s\n", __func__,
543 "fail alloc btn_keys memory");
544 return -ENOMEM;
545 }
546 si->btn = p;
547
548 if (cd->cpdata->sett[CY_IC_GRPNUM_BTN_KEYS] == NULL)
549 num_defined_keys = 0;
550 else if (cd->cpdata->sett[CY_IC_GRPNUM_BTN_KEYS]->data == NULL)
551 num_defined_keys = 0;
552 else
553 num_defined_keys = cd->cpdata->sett
554 [CY_IC_GRPNUM_BTN_KEYS]->size;
555
556 for (btn = 0; btn < si->si_ofs.num_btns &&
557 btn < num_defined_keys; btn++) {
558 key_table = (u16 *)cd->cpdata->sett
559 [CY_IC_GRPNUM_BTN_KEYS]->data;
560 si->btn[btn].key_code = key_table[btn];
561 si->btn[btn].state = CY_BTN_RELEASED;
562 si->btn[btn].enabled = true;
563 }
564 for (; btn < si->si_ofs.num_btns; btn++) {
565 si->btn[btn].key_code = KEY_RESERVED;
566 si->btn[btn].state = CY_BTN_RELEASED;
567 si->btn[btn].enabled = true;
568 }
569
570 return rc;
571 }
572
573 si->si_ofs.btn_keys_size = 0;
574 kfree(si->btn);
575 si->btn = NULL;
576 return rc;
577}
578
579static int cyttsp4_si_get_op_data_ptrs(struct cyttsp4 *cd)
580{
581 struct cyttsp4_sysinfo *si = &cd->sysinfo;
582 void *p;
583
584 p = krealloc(si->xy_mode, si->si_ofs.mode_size, GFP_KERNEL|__GFP_ZERO);
585 if (p == NULL)
586 return -ENOMEM;
587 si->xy_mode = p;
588
589 p = krealloc(si->xy_data, si->si_ofs.data_size, GFP_KERNEL|__GFP_ZERO);
590 if (p == NULL)
591 return -ENOMEM;
592 si->xy_data = p;
593
594 p = krealloc(si->btn_rec_data,
595 si->si_ofs.btn_rec_size * si->si_ofs.num_btns,
596 GFP_KERNEL|__GFP_ZERO);
597 if (p == NULL)
598 return -ENOMEM;
599 si->btn_rec_data = p;
600
601 return 0;
602}
603
604static void cyttsp4_si_put_log_data(struct cyttsp4 *cd)
605{
606 struct cyttsp4_sysinfo *si = &cd->sysinfo;
607 dev_dbg(cd->dev, "%s: cydata_ofs =%4zd siz=%4zd\n", __func__,
608 si->si_ofs.cydata_ofs, si->si_ofs.cydata_size);
609 dev_dbg(cd->dev, "%s: test_ofs =%4zd siz=%4zd\n", __func__,
610 si->si_ofs.test_ofs, si->si_ofs.test_size);
611 dev_dbg(cd->dev, "%s: pcfg_ofs =%4zd siz=%4zd\n", __func__,
612 si->si_ofs.pcfg_ofs, si->si_ofs.pcfg_size);
613 dev_dbg(cd->dev, "%s: opcfg_ofs =%4zd siz=%4zd\n", __func__,
614 si->si_ofs.opcfg_ofs, si->si_ofs.opcfg_size);
615 dev_dbg(cd->dev, "%s: ddata_ofs =%4zd siz=%4zd\n", __func__,
616 si->si_ofs.ddata_ofs, si->si_ofs.ddata_size);
617 dev_dbg(cd->dev, "%s: mdata_ofs =%4zd siz=%4zd\n", __func__,
618 si->si_ofs.mdata_ofs, si->si_ofs.mdata_size);
619
620 dev_dbg(cd->dev, "%s: cmd_ofs =%4zd\n", __func__,
621 si->si_ofs.cmd_ofs);
622 dev_dbg(cd->dev, "%s: rep_ofs =%4zd\n", __func__,
623 si->si_ofs.rep_ofs);
624 dev_dbg(cd->dev, "%s: rep_sz =%4zd\n", __func__,
625 si->si_ofs.rep_sz);
626 dev_dbg(cd->dev, "%s: num_btns =%4zd\n", __func__,
627 si->si_ofs.num_btns);
628 dev_dbg(cd->dev, "%s: num_btn_regs =%4zd\n", __func__,
629 si->si_ofs.num_btn_regs);
630 dev_dbg(cd->dev, "%s: tt_stat_ofs =%4zd\n", __func__,
631 si->si_ofs.tt_stat_ofs);
632 dev_dbg(cd->dev, "%s: tch_rec_size =%4zd\n", __func__,
633 si->si_ofs.tch_rec_size);
634 dev_dbg(cd->dev, "%s: max_tchs =%4zd\n", __func__,
635 si->si_ofs.max_tchs);
636 dev_dbg(cd->dev, "%s: mode_size =%4zd\n", __func__,
637 si->si_ofs.mode_size);
638 dev_dbg(cd->dev, "%s: data_size =%4zd\n", __func__,
639 si->si_ofs.data_size);
640 dev_dbg(cd->dev, "%s: map_sz =%4zd\n", __func__,
641 si->si_ofs.map_sz);
642
643 dev_dbg(cd->dev, "%s: btn_rec_size =%2zd\n", __func__,
644 si->si_ofs.btn_rec_size);
645 dev_dbg(cd->dev, "%s: btn_diff_ofs =%2zd\n", __func__,
646 si->si_ofs.btn_diff_ofs);
647 dev_dbg(cd->dev, "%s: btn_diff_size =%2zd\n", __func__,
648 si->si_ofs.btn_diff_size);
649
650 dev_dbg(cd->dev, "%s: max_x = 0x%04zX (%zd)\n", __func__,
651 si->si_ofs.max_x, si->si_ofs.max_x);
652 dev_dbg(cd->dev, "%s: x_origin = %zd (%s)\n", __func__,
653 si->si_ofs.x_origin,
654 si->si_ofs.x_origin == CY_NORMAL_ORIGIN ?
655 "left corner" : "right corner");
656 dev_dbg(cd->dev, "%s: max_y = 0x%04zX (%zd)\n", __func__,
657 si->si_ofs.max_y, si->si_ofs.max_y);
658 dev_dbg(cd->dev, "%s: y_origin = %zd (%s)\n", __func__,
659 si->si_ofs.y_origin,
660 si->si_ofs.y_origin == CY_NORMAL_ORIGIN ?
661 "upper corner" : "lower corner");
662 dev_dbg(cd->dev, "%s: max_p = 0x%04zX (%zd)\n", __func__,
663 si->si_ofs.max_p, si->si_ofs.max_p);
664
665 dev_dbg(cd->dev, "%s: xy_mode=%p xy_data=%p\n", __func__,
666 si->xy_mode, si->xy_data);
667}
668
669static int cyttsp4_get_sysinfo_regs(struct cyttsp4 *cd)
670{
671 struct cyttsp4_sysinfo *si = &cd->sysinfo;
672 int rc;
673
674 rc = cyttsp4_si_data_offsets(cd);
675 if (rc < 0)
676 return rc;
677
678 rc = cyttsp4_si_get_cydata(cd);
679 if (rc < 0)
680 return rc;
681
682 rc = cyttsp4_si_get_test_data(cd);
683 if (rc < 0)
684 return rc;
685
686 rc = cyttsp4_si_get_pcfg_data(cd);
687 if (rc < 0)
688 return rc;
689
690 rc = cyttsp4_si_get_opcfg_data(cd);
691 if (rc < 0)
692 return rc;
693
694 rc = cyttsp4_si_get_ddata(cd);
695 if (rc < 0)
696 return rc;
697
698 rc = cyttsp4_si_get_mdata(cd);
699 if (rc < 0)
700 return rc;
701
702 rc = cyttsp4_si_get_btn_data(cd);
703 if (rc < 0)
704 return rc;
705
706 rc = cyttsp4_si_get_op_data_ptrs(cd);
707 if (rc < 0) {
708 dev_err(cd->dev, "%s: failed to get_op_data\n",
709 __func__);
710 return rc;
711 }
712
713 cyttsp4_si_put_log_data(cd);
714
715
716 rc = cyttsp4_handshake(cd, si->si_data.hst_mode);
717 if (rc < 0)
718 dev_err(cd->dev, "%s: handshake fail on sysinfo reg\n",
719 __func__);
720
721 si->ready = true;
722 return rc;
723}
724
725static void cyttsp4_queue_startup_(struct cyttsp4 *cd)
726{
727 if (cd->startup_state == STARTUP_NONE) {
728 cd->startup_state = STARTUP_QUEUED;
729 schedule_work(&cd->startup_work);
730 dev_dbg(cd->dev, "%s: cyttsp4_startup queued\n", __func__);
731 } else {
732 dev_dbg(cd->dev, "%s: startup_state = %d\n", __func__,
733 cd->startup_state);
734 }
735}
736
737static void cyttsp4_report_slot_liftoff(struct cyttsp4_mt_data *md,
738 int max_slots)
739{
740 int t;
741
742 if (md->num_prv_tch == 0)
743 return;
744
745 for (t = 0; t < max_slots; t++) {
746 input_mt_slot(md->input, t);
747 input_mt_report_slot_inactive(md->input);
748 }
749}
750
751static void cyttsp4_lift_all(struct cyttsp4_mt_data *md)
752{
753 if (!md->si)
754 return;
755
756 if (md->num_prv_tch != 0) {
757 cyttsp4_report_slot_liftoff(md,
758 md->si->si_ofs.tch_abs[CY_TCH_T].max);
759 input_sync(md->input);
760 md->num_prv_tch = 0;
761 }
762}
763
764static void cyttsp4_get_touch_axis(struct cyttsp4_mt_data *md,
765 int *axis, int size, int max, u8 *xy_data, int bofs)
766{
767 int nbyte;
768 int next;
769
770 for (nbyte = 0, *axis = 0, next = 0; nbyte < size; nbyte++) {
771 dev_vdbg(&md->input->dev,
772 "%s: *axis=%02X(%d) size=%d max=%08X xy_data=%p"
773 " xy_data[%d]=%02X(%d) bofs=%d\n",
774 __func__, *axis, *axis, size, max, xy_data, next,
775 xy_data[next], xy_data[next], bofs);
776 *axis = (*axis * 256) + (xy_data[next] >> bofs);
777 next++;
778 }
779
780 *axis &= max - 1;
781
782 dev_vdbg(&md->input->dev,
783 "%s: *axis=%02X(%d) size=%d max=%08X xy_data=%p"
784 " xy_data[%d]=%02X(%d)\n",
785 __func__, *axis, *axis, size, max, xy_data, next,
786 xy_data[next], xy_data[next]);
787}
788
789static void cyttsp4_get_touch(struct cyttsp4_mt_data *md,
790 struct cyttsp4_touch *touch, u8 *xy_data)
791{
792 struct device *dev = &md->input->dev;
793 struct cyttsp4_sysinfo *si = md->si;
794 enum cyttsp4_tch_abs abs;
795 bool flipped;
796
797 for (abs = CY_TCH_X; abs < CY_TCH_NUM_ABS; abs++) {
798 cyttsp4_get_touch_axis(md, &touch->abs[abs],
799 si->si_ofs.tch_abs[abs].size,
800 si->si_ofs.tch_abs[abs].max,
801 xy_data + si->si_ofs.tch_abs[abs].ofs,
802 si->si_ofs.tch_abs[abs].bofs);
803 dev_vdbg(dev, "%s: get %s=%04X(%d)\n", __func__,
804 cyttsp4_tch_abs_string[abs],
805 touch->abs[abs], touch->abs[abs]);
806 }
807
808 if (md->pdata->flags & CY_FLAG_FLIP) {
809 swap(touch->abs[CY_TCH_X], touch->abs[CY_TCH_Y]);
810 flipped = true;
811 } else
812 flipped = false;
813
814 if (md->pdata->flags & CY_FLAG_INV_X) {
815 if (flipped)
816 touch->abs[CY_TCH_X] = md->si->si_ofs.max_y -
817 touch->abs[CY_TCH_X];
818 else
819 touch->abs[CY_TCH_X] = md->si->si_ofs.max_x -
820 touch->abs[CY_TCH_X];
821 }
822 if (md->pdata->flags & CY_FLAG_INV_Y) {
823 if (flipped)
824 touch->abs[CY_TCH_Y] = md->si->si_ofs.max_x -
825 touch->abs[CY_TCH_Y];
826 else
827 touch->abs[CY_TCH_Y] = md->si->si_ofs.max_y -
828 touch->abs[CY_TCH_Y];
829 }
830
831 dev_vdbg(dev, "%s: flip=%s inv-x=%s inv-y=%s x=%04X(%d) y=%04X(%d)\n",
832 __func__, flipped ? "true" : "false",
833 md->pdata->flags & CY_FLAG_INV_X ? "true" : "false",
834 md->pdata->flags & CY_FLAG_INV_Y ? "true" : "false",
835 touch->abs[CY_TCH_X], touch->abs[CY_TCH_X],
836 touch->abs[CY_TCH_Y], touch->abs[CY_TCH_Y]);
837}
838
839static void cyttsp4_final_sync(struct input_dev *input, int max_slots, int *ids)
840{
841 int t;
842
843 for (t = 0; t < max_slots; t++) {
844 if (ids[t])
845 continue;
846 input_mt_slot(input, t);
847 input_mt_report_slot_inactive(input);
848 }
849
850 input_sync(input);
851}
852
853static void cyttsp4_get_mt_touches(struct cyttsp4_mt_data *md, int num_cur_tch)
854{
855 struct device *dev = &md->input->dev;
856 struct cyttsp4_sysinfo *si = md->si;
857 struct cyttsp4_touch tch;
858 int sig;
859 int i, j, t = 0;
860 int ids[max(CY_TMA1036_MAX_TCH, CY_TMA4XX_MAX_TCH)];
861
862 memset(ids, 0, si->si_ofs.tch_abs[CY_TCH_T].max * sizeof(int));
863 for (i = 0; i < num_cur_tch; i++) {
864 cyttsp4_get_touch(md, &tch, si->xy_data +
865 (i * si->si_ofs.tch_rec_size));
866 if ((tch.abs[CY_TCH_T] < md->pdata->frmwrk->abs
867 [(CY_ABS_ID_OST * CY_NUM_ABS_SET) + CY_MIN_OST]) ||
868 (tch.abs[CY_TCH_T] > md->pdata->frmwrk->abs
869 [(CY_ABS_ID_OST * CY_NUM_ABS_SET) + CY_MAX_OST])) {
870 dev_err(dev, "%s: tch=%d -> bad trk_id=%d max_id=%d\n",
871 __func__, i, tch.abs[CY_TCH_T],
872 md->pdata->frmwrk->abs[(CY_ABS_ID_OST *
873 CY_NUM_ABS_SET) + CY_MAX_OST]);
874 continue;
875 }
876
877
878 sig = md->pdata->frmwrk->abs
879 [(CY_ABS_ID_OST * CY_NUM_ABS_SET) + 0];
880 if (sig != CY_IGNORE_VALUE) {
881 t = tch.abs[CY_TCH_T] - md->pdata->frmwrk->abs
882 [(CY_ABS_ID_OST * CY_NUM_ABS_SET) + CY_MIN_OST];
883 if (tch.abs[CY_TCH_E] == CY_EV_LIFTOFF) {
884 dev_dbg(dev, "%s: t=%d e=%d lift-off\n",
885 __func__, t, tch.abs[CY_TCH_E]);
886 goto cyttsp4_get_mt_touches_pr_tch;
887 }
888 input_mt_slot(md->input, t);
889 input_mt_report_slot_state(md->input, MT_TOOL_FINGER,
890 true);
891 ids[t] = true;
892 }
893
894
895 for (j = 0; j <= CY_ABS_W_OST; j++) {
896 sig = md->pdata->frmwrk->abs[((CY_ABS_X_OST + j) *
897 CY_NUM_ABS_SET) + 0];
898 if (sig != CY_IGNORE_VALUE)
899 input_report_abs(md->input, sig,
900 tch.abs[CY_TCH_X + j]);
901 }
902 if (si->si_ofs.tch_rec_size > CY_TMA1036_TCH_REC_SIZE) {
903
904
905
906
907
908
909 if (tch.abs[CY_TCH_P] > 0 && tch.abs[CY_TCH_MAJ] == 0)
910 tch.abs[CY_TCH_MAJ] = tch.abs[CY_TCH_MIN] = 1;
911
912
913 for (j = 0; j < CY_NUM_EXT_TCH_FIELDS; j++) {
914 sig = md->pdata->frmwrk->abs
915 [((CY_ABS_MAJ_OST + j) *
916 CY_NUM_ABS_SET) + 0];
917 if (sig != CY_IGNORE_VALUE)
918 input_report_abs(md->input, sig,
919 tch.abs[CY_TCH_MAJ + j]);
920 }
921 }
922
923cyttsp4_get_mt_touches_pr_tch:
924 if (si->si_ofs.tch_rec_size > CY_TMA1036_TCH_REC_SIZE)
925 dev_dbg(dev,
926 "%s: t=%d x=%d y=%d z=%d M=%d m=%d o=%d e=%d\n",
927 __func__, t,
928 tch.abs[CY_TCH_X],
929 tch.abs[CY_TCH_Y],
930 tch.abs[CY_TCH_P],
931 tch.abs[CY_TCH_MAJ],
932 tch.abs[CY_TCH_MIN],
933 tch.abs[CY_TCH_OR],
934 tch.abs[CY_TCH_E]);
935 else
936 dev_dbg(dev,
937 "%s: t=%d x=%d y=%d z=%d e=%d\n", __func__,
938 t,
939 tch.abs[CY_TCH_X],
940 tch.abs[CY_TCH_Y],
941 tch.abs[CY_TCH_P],
942 tch.abs[CY_TCH_E]);
943 }
944
945 cyttsp4_final_sync(md->input, si->si_ofs.tch_abs[CY_TCH_T].max, ids);
946
947 md->num_prv_tch = num_cur_tch;
948
949 return;
950}
951
952
953static int cyttsp4_xy_worker(struct cyttsp4 *cd)
954{
955 struct cyttsp4_mt_data *md = &cd->md;
956 struct device *dev = &md->input->dev;
957 struct cyttsp4_sysinfo *si = md->si;
958 u8 num_cur_tch;
959 u8 hst_mode;
960 u8 rep_len;
961 u8 rep_stat;
962 u8 tt_stat;
963 int rc = 0;
964
965
966
967
968
969
970
971
972
973
974
975
976 hst_mode = si->xy_mode[CY_REG_BASE];
977 rep_len = si->xy_mode[si->si_ofs.rep_ofs];
978 rep_stat = si->xy_mode[si->si_ofs.rep_ofs + 1];
979 tt_stat = si->xy_mode[si->si_ofs.tt_stat_ofs];
980 dev_vdbg(dev, "%s: %s%02X %s%d %s%02X %s%02X\n", __func__,
981 "hst_mode=", hst_mode, "rep_len=", rep_len,
982 "rep_stat=", rep_stat, "tt_stat=", tt_stat);
983
984 num_cur_tch = GET_NUM_TOUCHES(tt_stat);
985 dev_vdbg(dev, "%s: num_cur_tch=%d\n", __func__, num_cur_tch);
986
987 if (rep_len == 0 && num_cur_tch > 0) {
988 dev_err(dev, "%s: report length error rep_len=%d num_tch=%d\n",
989 __func__, rep_len, num_cur_tch);
990 goto cyttsp4_xy_worker_exit;
991 }
992
993
994 if (num_cur_tch > 0) {
995 rc = cyttsp4_adap_read(cd, si->si_ofs.tt_stat_ofs + 1,
996 num_cur_tch * si->si_ofs.tch_rec_size,
997 si->xy_data);
998 if (rc < 0) {
999 dev_err(dev, "%s: read fail on touch regs r=%d\n",
1000 __func__, rc);
1001 goto cyttsp4_xy_worker_exit;
1002 }
1003 }
1004
1005
1006 cyttsp4_pr_buf(dev, cd->pr_buf, si->xy_data, num_cur_tch *
1007 si->si_ofs.tch_rec_size, "xy_data");
1008
1009
1010 if (IS_BAD_PKT(rep_stat)) {
1011 dev_dbg(dev, "%s: Invalid buffer detected\n", __func__);
1012 rc = 0;
1013 goto cyttsp4_xy_worker_exit;
1014 }
1015
1016 if (IS_LARGE_AREA(tt_stat))
1017 dev_dbg(dev, "%s: Large area detected\n", __func__);
1018
1019 if (num_cur_tch > si->si_ofs.max_tchs) {
1020 dev_err(dev, "%s: too many tch; set to max tch (n=%d c=%zd)\n",
1021 __func__, num_cur_tch, si->si_ofs.max_tchs);
1022 num_cur_tch = si->si_ofs.max_tchs;
1023 }
1024
1025
1026 dev_vdbg(dev, "%s: extract data num_cur_tch=%d\n", __func__,
1027 num_cur_tch);
1028 if (num_cur_tch)
1029 cyttsp4_get_mt_touches(md, num_cur_tch);
1030 else
1031 cyttsp4_lift_all(md);
1032
1033 rc = 0;
1034
1035cyttsp4_xy_worker_exit:
1036 return rc;
1037}
1038
1039static int cyttsp4_mt_attention(struct cyttsp4 *cd)
1040{
1041 struct device *dev = cd->dev;
1042 struct cyttsp4_mt_data *md = &cd->md;
1043 int rc = 0;
1044
1045 if (!md->si)
1046 return 0;
1047
1048 mutex_lock(&md->report_lock);
1049 if (!md->is_suspended) {
1050
1051 rc = cyttsp4_xy_worker(cd);
1052 } else {
1053 dev_vdbg(dev, "%s: Ignoring report while suspended\n",
1054 __func__);
1055 }
1056 mutex_unlock(&md->report_lock);
1057 if (rc < 0)
1058 dev_err(dev, "%s: xy_worker error r=%d\n", __func__, rc);
1059
1060 return rc;
1061}
1062
1063static irqreturn_t cyttsp4_irq(int irq, void *handle)
1064{
1065 struct cyttsp4 *cd = handle;
1066 struct device *dev = cd->dev;
1067 enum cyttsp4_mode cur_mode;
1068 u8 cmd_ofs = cd->sysinfo.si_ofs.cmd_ofs;
1069 u8 mode[3];
1070 int rc;
1071
1072
1073
1074
1075
1076
1077 if (atomic_read(&cd->ignore_irq)) {
1078 dev_vdbg(dev, "%s: Ignoring IRQ\n", __func__);
1079 return IRQ_HANDLED;
1080 }
1081
1082 dev_dbg(dev, "%s int:0x%x\n", __func__, cd->int_status);
1083
1084 mutex_lock(&cd->system_lock);
1085
1086
1087 if (cd->sleep_state == SS_SLEEP_ON || cd->sleep_state == SS_SLEEPING)
1088 dev_vdbg(dev, "%s: Received IRQ while in sleep\n", __func__);
1089
1090 rc = cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(mode), mode);
1091 if (rc) {
1092 dev_err(cd->dev, "%s: Fail read adapter r=%d\n", __func__, rc);
1093 goto cyttsp4_irq_exit;
1094 }
1095 dev_vdbg(dev, "%s mode[0-2]:0x%X 0x%X 0x%X\n", __func__,
1096 mode[0], mode[1], mode[2]);
1097
1098 if (IS_BOOTLOADER(mode[0], mode[1])) {
1099 cur_mode = CY_MODE_BOOTLOADER;
1100 dev_vdbg(dev, "%s: bl running\n", __func__);
1101 if (cd->mode == CY_MODE_BOOTLOADER) {
1102
1103 wake_up(&cd->wait_q);
1104 goto cyttsp4_irq_exit;
1105 }
1106
1107
1108 dev_dbg(dev, "%s: restart switch to bl m=%d -> m=%d\n",
1109 __func__, cd->mode, cur_mode);
1110
1111
1112 if (cd->mode != CY_MODE_UNKNOWN) {
1113
1114 cd->mode = CY_MODE_UNKNOWN;
1115 cyttsp4_queue_startup_(cd);
1116 goto cyttsp4_irq_exit;
1117 }
1118
1119
1120
1121
1122
1123
1124 cd->mode = cur_mode;
1125
1126 goto cyttsp4_irq_exit;
1127 }
1128
1129 switch (mode[0] & CY_HST_MODE) {
1130 case CY_HST_OPERATE:
1131 cur_mode = CY_MODE_OPERATIONAL;
1132 dev_vdbg(dev, "%s: operational\n", __func__);
1133 break;
1134 case CY_HST_CAT:
1135 cur_mode = CY_MODE_CAT;
1136 dev_vdbg(dev, "%s: CaT\n", __func__);
1137 break;
1138 case CY_HST_SYSINFO:
1139 cur_mode = CY_MODE_SYSINFO;
1140 dev_vdbg(dev, "%s: sysinfo\n", __func__);
1141 break;
1142 default:
1143 cur_mode = CY_MODE_UNKNOWN;
1144 dev_err(dev, "%s: unknown HST mode 0x%02X\n", __func__,
1145 mode[0]);
1146 break;
1147 }
1148
1149
1150 if (cd->int_status & CY_INT_IGNORE) {
1151 dev_vdbg(dev, "%s: Ignoring IRQ\n", __func__);
1152 goto cyttsp4_irq_exit;
1153 }
1154
1155
1156 if (cd->int_status & CY_INT_AWAKE) {
1157 cd->int_status &= ~CY_INT_AWAKE;
1158 wake_up(&cd->wait_q);
1159 dev_vdbg(dev, "%s: Received wake up interrupt\n", __func__);
1160 goto cyttsp4_irq_handshake;
1161 }
1162
1163
1164 if ((cd->int_status & CY_INT_MODE_CHANGE)
1165 && (mode[0] & CY_HST_MODE_CHANGE) == 0) {
1166 cd->int_status &= ~CY_INT_MODE_CHANGE;
1167 dev_dbg(dev, "%s: finish mode switch m=%d -> m=%d\n",
1168 __func__, cd->mode, cur_mode);
1169 cd->mode = cur_mode;
1170 wake_up(&cd->wait_q);
1171 goto cyttsp4_irq_handshake;
1172 }
1173
1174
1175 dev_vdbg(dev, "%s: cd->mode=%d cur_mode=%d\n",
1176 __func__, cd->mode, cur_mode);
1177 if ((mode[0] & CY_HST_MODE_CHANGE) == 0 && cd->mode != cur_mode) {
1178
1179 dev_err(dev, "%s %d->%d 0x%x\n", __func__, cd->mode,
1180 cur_mode, cd->int_status);
1181 dev_dbg(dev, "%s: Unexpected mode change, startup\n",
1182 __func__);
1183 cyttsp4_queue_startup_(cd);
1184 goto cyttsp4_irq_exit;
1185 }
1186
1187
1188 dev_vdbg(dev, "%s: command byte:0x%x\n", __func__, mode[cmd_ofs]);
1189 if ((cd->int_status & CY_INT_EXEC_CMD)
1190 && mode[cmd_ofs] & CY_CMD_COMPLETE) {
1191 cd->int_status &= ~CY_INT_EXEC_CMD;
1192 dev_vdbg(dev, "%s: Received command complete interrupt\n",
1193 __func__);
1194 wake_up(&cd->wait_q);
1195
1196
1197
1198
1199
1200 }
1201
1202
1203 if (cd->mode == CY_MODE_OPERATIONAL) {
1204 dev_vdbg(dev, "%s: Read status registers\n", __func__);
1205 rc = cyttsp4_load_status_regs(cd);
1206 if (rc < 0)
1207 dev_err(dev, "%s: fail read mode regs r=%d\n",
1208 __func__, rc);
1209 }
1210
1211 cyttsp4_mt_attention(cd);
1212
1213cyttsp4_irq_handshake:
1214
1215 dev_vdbg(dev, "%s: Handshake mode=0x%02X r=%d\n",
1216 __func__, mode[0], rc);
1217 rc = cyttsp4_handshake(cd, mode[0]);
1218 if (rc < 0)
1219 dev_err(dev, "%s: Fail handshake mode=0x%02X r=%d\n",
1220 __func__, mode[0], rc);
1221
1222
1223
1224
1225
1226
1227 udelay(cd->cpdata->level_irq_udelay);
1228
1229cyttsp4_irq_exit:
1230 mutex_unlock(&cd->system_lock);
1231 return IRQ_HANDLED;
1232}
1233
1234static void cyttsp4_start_wd_timer(struct cyttsp4 *cd)
1235{
1236 if (!CY_WATCHDOG_TIMEOUT)
1237 return;
1238
1239 mod_timer(&cd->watchdog_timer, jiffies +
1240 msecs_to_jiffies(CY_WATCHDOG_TIMEOUT));
1241}
1242
1243static void cyttsp4_stop_wd_timer(struct cyttsp4 *cd)
1244{
1245 if (!CY_WATCHDOG_TIMEOUT)
1246 return;
1247
1248
1249
1250
1251
1252 del_timer_sync(&cd->watchdog_timer);
1253 cancel_work_sync(&cd->watchdog_work);
1254 del_timer_sync(&cd->watchdog_timer);
1255}
1256
1257static void cyttsp4_watchdog_timer(struct timer_list *t)
1258{
1259 struct cyttsp4 *cd = from_timer(cd, t, watchdog_timer);
1260
1261 dev_vdbg(cd->dev, "%s: Watchdog timer triggered\n", __func__);
1262
1263 schedule_work(&cd->watchdog_work);
1264
1265 return;
1266}
1267
1268static int cyttsp4_request_exclusive(struct cyttsp4 *cd, void *ownptr,
1269 int timeout_ms)
1270{
1271 int t = msecs_to_jiffies(timeout_ms);
1272 bool with_timeout = (timeout_ms != 0);
1273
1274 mutex_lock(&cd->system_lock);
1275 if (!cd->exclusive_dev && cd->exclusive_waits == 0) {
1276 cd->exclusive_dev = ownptr;
1277 goto exit;
1278 }
1279
1280 cd->exclusive_waits++;
1281wait:
1282 mutex_unlock(&cd->system_lock);
1283 if (with_timeout) {
1284 t = wait_event_timeout(cd->wait_q, !cd->exclusive_dev, t);
1285 if (IS_TMO(t)) {
1286 dev_err(cd->dev, "%s: tmo waiting exclusive access\n",
1287 __func__);
1288 mutex_lock(&cd->system_lock);
1289 cd->exclusive_waits--;
1290 mutex_unlock(&cd->system_lock);
1291 return -ETIME;
1292 }
1293 } else {
1294 wait_event(cd->wait_q, !cd->exclusive_dev);
1295 }
1296 mutex_lock(&cd->system_lock);
1297 if (cd->exclusive_dev)
1298 goto wait;
1299 cd->exclusive_dev = ownptr;
1300 cd->exclusive_waits--;
1301exit:
1302 mutex_unlock(&cd->system_lock);
1303
1304 return 0;
1305}
1306
1307
1308
1309
1310static int cyttsp4_release_exclusive(struct cyttsp4 *cd, void *ownptr)
1311{
1312 mutex_lock(&cd->system_lock);
1313 if (cd->exclusive_dev != ownptr) {
1314 mutex_unlock(&cd->system_lock);
1315 return -EINVAL;
1316 }
1317
1318 dev_vdbg(cd->dev, "%s: exclusive_dev %p freed\n",
1319 __func__, cd->exclusive_dev);
1320 cd->exclusive_dev = NULL;
1321 wake_up(&cd->wait_q);
1322 mutex_unlock(&cd->system_lock);
1323 return 0;
1324}
1325
1326static int cyttsp4_wait_bl_heartbeat(struct cyttsp4 *cd)
1327{
1328 long t;
1329 int rc = 0;
1330
1331
1332 dev_vdbg(cd->dev, "%s: wait heartbeat...\n", __func__);
1333 t = wait_event_timeout(cd->wait_q, cd->mode == CY_MODE_BOOTLOADER,
1334 msecs_to_jiffies(CY_CORE_RESET_AND_WAIT_TIMEOUT));
1335 if (IS_TMO(t)) {
1336 dev_err(cd->dev, "%s: tmo waiting bl heartbeat cd->mode=%d\n",
1337 __func__, cd->mode);
1338 rc = -ETIME;
1339 }
1340
1341 return rc;
1342}
1343
1344static int cyttsp4_wait_sysinfo_mode(struct cyttsp4 *cd)
1345{
1346 long t;
1347
1348 dev_vdbg(cd->dev, "%s: wait sysinfo...\n", __func__);
1349
1350 t = wait_event_timeout(cd->wait_q, cd->mode == CY_MODE_SYSINFO,
1351 msecs_to_jiffies(CY_CORE_MODE_CHANGE_TIMEOUT));
1352 if (IS_TMO(t)) {
1353 dev_err(cd->dev, "%s: tmo waiting exit bl cd->mode=%d\n",
1354 __func__, cd->mode);
1355 mutex_lock(&cd->system_lock);
1356 cd->int_status &= ~CY_INT_MODE_CHANGE;
1357 mutex_unlock(&cd->system_lock);
1358 return -ETIME;
1359 }
1360
1361 return 0;
1362}
1363
1364static int cyttsp4_reset_and_wait(struct cyttsp4 *cd)
1365{
1366 int rc;
1367
1368
1369 mutex_lock(&cd->system_lock);
1370 dev_dbg(cd->dev, "%s: reset hw...\n", __func__);
1371 rc = cyttsp4_hw_reset(cd);
1372 cd->mode = CY_MODE_UNKNOWN;
1373 mutex_unlock(&cd->system_lock);
1374 if (rc < 0) {
1375 dev_err(cd->dev, "%s:Fail hw reset r=%d\n", __func__, rc);
1376 return rc;
1377 }
1378
1379 return cyttsp4_wait_bl_heartbeat(cd);
1380}
1381
1382
1383
1384
1385
1386static int cyttsp4_set_mode(struct cyttsp4 *cd, int new_mode)
1387{
1388 u8 new_dev_mode;
1389 u8 mode;
1390 long t;
1391 int rc;
1392
1393 switch (new_mode) {
1394 case CY_MODE_OPERATIONAL:
1395 new_dev_mode = CY_HST_OPERATE;
1396 break;
1397 case CY_MODE_SYSINFO:
1398 new_dev_mode = CY_HST_SYSINFO;
1399 break;
1400 case CY_MODE_CAT:
1401 new_dev_mode = CY_HST_CAT;
1402 break;
1403 default:
1404 dev_err(cd->dev, "%s: invalid mode: %02X(%d)\n",
1405 __func__, new_mode, new_mode);
1406 return -EINVAL;
1407 }
1408
1409
1410 dev_dbg(cd->dev, "%s: %s=%p new_dev_mode=%02X new_mode=%d\n",
1411 __func__, "have exclusive", cd->exclusive_dev,
1412 new_dev_mode, new_mode);
1413
1414 mutex_lock(&cd->system_lock);
1415 rc = cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(mode), &mode);
1416 if (rc < 0) {
1417 mutex_unlock(&cd->system_lock);
1418 dev_err(cd->dev, "%s: Fail read mode r=%d\n",
1419 __func__, rc);
1420 goto exit;
1421 }
1422
1423
1424 mode &= ~CY_HST_MODE;
1425 mode |= new_dev_mode | CY_HST_MODE_CHANGE;
1426
1427 cd->int_status |= CY_INT_MODE_CHANGE;
1428 rc = cyttsp4_adap_write(cd, CY_REG_BASE, sizeof(mode), &mode);
1429 mutex_unlock(&cd->system_lock);
1430 if (rc < 0) {
1431 dev_err(cd->dev, "%s: Fail write mode change r=%d\n",
1432 __func__, rc);
1433 goto exit;
1434 }
1435
1436
1437 t = wait_event_timeout(cd->wait_q,
1438 (cd->int_status & CY_INT_MODE_CHANGE) == 0,
1439 msecs_to_jiffies(CY_CORE_MODE_CHANGE_TIMEOUT));
1440 dev_dbg(cd->dev, "%s: back from wait t=%ld cd->mode=%d\n",
1441 __func__, t, cd->mode);
1442
1443 if (IS_TMO(t)) {
1444 dev_err(cd->dev, "%s: %s\n", __func__,
1445 "tmo waiting mode change");
1446 mutex_lock(&cd->system_lock);
1447 cd->int_status &= ~CY_INT_MODE_CHANGE;
1448 mutex_unlock(&cd->system_lock);
1449 rc = -EINVAL;
1450 }
1451
1452exit:
1453 return rc;
1454}
1455
1456static void cyttsp4_watchdog_work(struct work_struct *work)
1457{
1458 struct cyttsp4 *cd =
1459 container_of(work, struct cyttsp4, watchdog_work);
1460 u8 *mode;
1461 int retval;
1462
1463 mutex_lock(&cd->system_lock);
1464 retval = cyttsp4_load_status_regs(cd);
1465 if (retval < 0) {
1466 dev_err(cd->dev,
1467 "%s: failed to access device in watchdog timer r=%d\n",
1468 __func__, retval);
1469 cyttsp4_queue_startup_(cd);
1470 goto cyttsp4_timer_watchdog_exit_error;
1471 }
1472 mode = &cd->sysinfo.xy_mode[CY_REG_BASE];
1473 if (IS_BOOTLOADER(mode[0], mode[1])) {
1474 dev_err(cd->dev,
1475 "%s: device found in bootloader mode when operational mode\n",
1476 __func__);
1477 cyttsp4_queue_startup_(cd);
1478 goto cyttsp4_timer_watchdog_exit_error;
1479 }
1480
1481 cyttsp4_start_wd_timer(cd);
1482cyttsp4_timer_watchdog_exit_error:
1483 mutex_unlock(&cd->system_lock);
1484 return;
1485}
1486
1487static int cyttsp4_core_sleep_(struct cyttsp4 *cd)
1488{
1489 enum cyttsp4_sleep_state ss = SS_SLEEP_ON;
1490 enum cyttsp4_int_state int_status = CY_INT_IGNORE;
1491 int rc = 0;
1492 u8 mode[2];
1493
1494
1495 mutex_lock(&cd->system_lock);
1496 if (cd->sleep_state == SS_SLEEP_ON) {
1497 mutex_unlock(&cd->system_lock);
1498 return 0;
1499 }
1500 cd->sleep_state = SS_SLEEPING;
1501 mutex_unlock(&cd->system_lock);
1502
1503 cyttsp4_stop_wd_timer(cd);
1504
1505
1506 disable_irq(cd->irq);
1507
1508 dev_vdbg(cd->dev, "%s: write DEEP SLEEP...\n", __func__);
1509 mutex_lock(&cd->system_lock);
1510 rc = cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(mode), &mode);
1511 if (rc) {
1512 mutex_unlock(&cd->system_lock);
1513 dev_err(cd->dev, "%s: Fail read adapter r=%d\n", __func__, rc);
1514 goto error;
1515 }
1516
1517 if (IS_BOOTLOADER(mode[0], mode[1])) {
1518 mutex_unlock(&cd->system_lock);
1519 dev_err(cd->dev, "%s: Device in BOOTLOADER mode.\n", __func__);
1520 rc = -EINVAL;
1521 goto error;
1522 }
1523
1524 mode[0] |= CY_HST_SLEEP;
1525 rc = cyttsp4_adap_write(cd, CY_REG_BASE, sizeof(mode[0]), &mode[0]);
1526 mutex_unlock(&cd->system_lock);
1527 if (rc) {
1528 dev_err(cd->dev, "%s: Fail write adapter r=%d\n", __func__, rc);
1529 goto error;
1530 }
1531 dev_vdbg(cd->dev, "%s: write DEEP SLEEP succeeded\n", __func__);
1532
1533 if (cd->cpdata->power) {
1534 dev_dbg(cd->dev, "%s: Power down HW\n", __func__);
1535 rc = cd->cpdata->power(cd->cpdata, 0, cd->dev, &cd->ignore_irq);
1536 } else {
1537 dev_dbg(cd->dev, "%s: No power function\n", __func__);
1538 rc = 0;
1539 }
1540 if (rc < 0) {
1541 dev_err(cd->dev, "%s: HW Power down fails r=%d\n",
1542 __func__, rc);
1543 goto error;
1544 }
1545
1546
1547 msleep(50);
1548
1549 goto exit;
1550
1551error:
1552 ss = SS_SLEEP_OFF;
1553 int_status = CY_INT_NONE;
1554 cyttsp4_start_wd_timer(cd);
1555
1556exit:
1557 mutex_lock(&cd->system_lock);
1558 cd->sleep_state = ss;
1559 cd->int_status |= int_status;
1560 mutex_unlock(&cd->system_lock);
1561 enable_irq(cd->irq);
1562 return rc;
1563}
1564
1565static int cyttsp4_startup_(struct cyttsp4 *cd)
1566{
1567 int retry = CY_CORE_STARTUP_RETRY_COUNT;
1568 int rc;
1569
1570 cyttsp4_stop_wd_timer(cd);
1571
1572reset:
1573 if (retry != CY_CORE_STARTUP_RETRY_COUNT)
1574 dev_dbg(cd->dev, "%s: Retry %d\n", __func__,
1575 CY_CORE_STARTUP_RETRY_COUNT - retry);
1576
1577
1578 rc = cyttsp4_reset_and_wait(cd);
1579 if (rc < 0) {
1580 dev_err(cd->dev, "%s: Error on h/w reset r=%d\n", __func__, rc);
1581 if (retry--)
1582 goto reset;
1583 goto exit;
1584 }
1585
1586
1587 dev_vdbg(cd->dev, "%s: write exit ldr...\n", __func__);
1588 mutex_lock(&cd->system_lock);
1589 cd->int_status &= ~CY_INT_IGNORE;
1590 cd->int_status |= CY_INT_MODE_CHANGE;
1591
1592 rc = cyttsp4_adap_write(cd, CY_REG_BASE, sizeof(ldr_exit),
1593 (u8 *)ldr_exit);
1594 mutex_unlock(&cd->system_lock);
1595 if (rc < 0) {
1596 dev_err(cd->dev, "%s: Fail write r=%d\n", __func__, rc);
1597 if (retry--)
1598 goto reset;
1599 goto exit;
1600 }
1601
1602 rc = cyttsp4_wait_sysinfo_mode(cd);
1603 if (rc < 0) {
1604 u8 buf[sizeof(ldr_err_app)];
1605 int rc1;
1606
1607
1608 rc1 = cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(ldr_err_app),
1609 buf);
1610 if (rc1) {
1611 dev_err(cd->dev, "%s: Fail read r=%d\n", __func__, rc1);
1612 } else if (!memcmp(buf, ldr_err_app, sizeof(ldr_err_app))) {
1613 dev_err(cd->dev, "%s: Error launching touch application\n",
1614 __func__);
1615 mutex_lock(&cd->system_lock);
1616 cd->invalid_touch_app = true;
1617 mutex_unlock(&cd->system_lock);
1618 goto exit_no_wd;
1619 }
1620
1621 if (retry--)
1622 goto reset;
1623 goto exit;
1624 }
1625
1626 mutex_lock(&cd->system_lock);
1627 cd->invalid_touch_app = false;
1628 mutex_unlock(&cd->system_lock);
1629
1630
1631 dev_vdbg(cd->dev, "%s: get sysinfo regs..\n", __func__);
1632 rc = cyttsp4_get_sysinfo_regs(cd);
1633 if (rc < 0) {
1634 dev_err(cd->dev, "%s: failed to get sysinfo regs rc=%d\n",
1635 __func__, rc);
1636 if (retry--)
1637 goto reset;
1638 goto exit;
1639 }
1640
1641 rc = cyttsp4_set_mode(cd, CY_MODE_OPERATIONAL);
1642 if (rc < 0) {
1643 dev_err(cd->dev, "%s: failed to set mode to operational rc=%d\n",
1644 __func__, rc);
1645 if (retry--)
1646 goto reset;
1647 goto exit;
1648 }
1649
1650 cyttsp4_lift_all(&cd->md);
1651
1652
1653 mutex_lock(&cd->system_lock);
1654 if (cd->sleep_state == SS_SLEEP_ON) {
1655 cd->sleep_state = SS_SLEEP_OFF;
1656 mutex_unlock(&cd->system_lock);
1657 cyttsp4_core_sleep_(cd);
1658 goto exit_no_wd;
1659 }
1660 mutex_unlock(&cd->system_lock);
1661
1662exit:
1663 cyttsp4_start_wd_timer(cd);
1664exit_no_wd:
1665 return rc;
1666}
1667
1668static int cyttsp4_startup(struct cyttsp4 *cd)
1669{
1670 int rc;
1671
1672 mutex_lock(&cd->system_lock);
1673 cd->startup_state = STARTUP_RUNNING;
1674 mutex_unlock(&cd->system_lock);
1675
1676 rc = cyttsp4_request_exclusive(cd, cd->dev,
1677 CY_CORE_REQUEST_EXCLUSIVE_TIMEOUT);
1678 if (rc < 0) {
1679 dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
1680 __func__, cd->exclusive_dev, cd->dev);
1681 goto exit;
1682 }
1683
1684 rc = cyttsp4_startup_(cd);
1685
1686 if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
1687
1688 dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
1689 else
1690 dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
1691
1692exit:
1693 mutex_lock(&cd->system_lock);
1694 cd->startup_state = STARTUP_NONE;
1695 mutex_unlock(&cd->system_lock);
1696
1697
1698 wake_up(&cd->wait_q);
1699
1700 return rc;
1701}
1702
1703static void cyttsp4_startup_work_function(struct work_struct *work)
1704{
1705 struct cyttsp4 *cd = container_of(work, struct cyttsp4, startup_work);
1706 int rc;
1707
1708 rc = cyttsp4_startup(cd);
1709 if (rc < 0)
1710 dev_err(cd->dev, "%s: Fail queued startup r=%d\n",
1711 __func__, rc);
1712}
1713
1714static void cyttsp4_free_si_ptrs(struct cyttsp4 *cd)
1715{
1716 struct cyttsp4_sysinfo *si = &cd->sysinfo;
1717
1718 if (!si)
1719 return;
1720
1721 kfree(si->si_ptrs.cydata);
1722 kfree(si->si_ptrs.test);
1723 kfree(si->si_ptrs.pcfg);
1724 kfree(si->si_ptrs.opcfg);
1725 kfree(si->si_ptrs.ddata);
1726 kfree(si->si_ptrs.mdata);
1727 kfree(si->btn);
1728 kfree(si->xy_mode);
1729 kfree(si->xy_data);
1730 kfree(si->btn_rec_data);
1731}
1732
1733#ifdef CONFIG_PM
1734static int cyttsp4_core_sleep(struct cyttsp4 *cd)
1735{
1736 int rc;
1737
1738 rc = cyttsp4_request_exclusive(cd, cd->dev,
1739 CY_CORE_SLEEP_REQUEST_EXCLUSIVE_TIMEOUT);
1740 if (rc < 0) {
1741 dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
1742 __func__, cd->exclusive_dev, cd->dev);
1743 return 0;
1744 }
1745
1746 rc = cyttsp4_core_sleep_(cd);
1747
1748 if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
1749 dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
1750 else
1751 dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
1752
1753 return rc;
1754}
1755
1756static int cyttsp4_core_wake_(struct cyttsp4 *cd)
1757{
1758 struct device *dev = cd->dev;
1759 int rc;
1760 u8 mode;
1761 int t;
1762
1763
1764 mutex_lock(&cd->system_lock);
1765 if (cd->sleep_state == SS_SLEEP_OFF) {
1766 mutex_unlock(&cd->system_lock);
1767 return 0;
1768 }
1769 cd->int_status &= ~CY_INT_IGNORE;
1770 cd->int_status |= CY_INT_AWAKE;
1771 cd->sleep_state = SS_WAKING;
1772
1773 if (cd->cpdata->power) {
1774 dev_dbg(dev, "%s: Power up HW\n", __func__);
1775 rc = cd->cpdata->power(cd->cpdata, 1, dev, &cd->ignore_irq);
1776 } else {
1777 dev_dbg(dev, "%s: No power function\n", __func__);
1778 rc = -ENOSYS;
1779 }
1780 if (rc < 0) {
1781 dev_err(dev, "%s: HW Power up fails r=%d\n",
1782 __func__, rc);
1783
1784
1785 cyttsp4_adap_read(cd, CY_REG_BASE, sizeof(mode), &mode);
1786 } else
1787 dev_vdbg(cd->dev, "%s: HW power up succeeds\n",
1788 __func__);
1789 mutex_unlock(&cd->system_lock);
1790
1791 t = wait_event_timeout(cd->wait_q,
1792 (cd->int_status & CY_INT_AWAKE) == 0,
1793 msecs_to_jiffies(CY_CORE_WAKEUP_TIMEOUT));
1794 if (IS_TMO(t)) {
1795 dev_err(dev, "%s: TMO waiting for wakeup\n", __func__);
1796 mutex_lock(&cd->system_lock);
1797 cd->int_status &= ~CY_INT_AWAKE;
1798
1799 cyttsp4_queue_startup_(cd);
1800 mutex_unlock(&cd->system_lock);
1801 }
1802
1803 mutex_lock(&cd->system_lock);
1804 cd->sleep_state = SS_SLEEP_OFF;
1805 mutex_unlock(&cd->system_lock);
1806
1807 cyttsp4_start_wd_timer(cd);
1808
1809 return 0;
1810}
1811
1812static int cyttsp4_core_wake(struct cyttsp4 *cd)
1813{
1814 int rc;
1815
1816 rc = cyttsp4_request_exclusive(cd, cd->dev,
1817 CY_CORE_REQUEST_EXCLUSIVE_TIMEOUT);
1818 if (rc < 0) {
1819 dev_err(cd->dev, "%s: fail get exclusive ex=%p own=%p\n",
1820 __func__, cd->exclusive_dev, cd->dev);
1821 return 0;
1822 }
1823
1824 rc = cyttsp4_core_wake_(cd);
1825
1826 if (cyttsp4_release_exclusive(cd, cd->dev) < 0)
1827 dev_err(cd->dev, "%s: fail to release exclusive\n", __func__);
1828 else
1829 dev_vdbg(cd->dev, "%s: pass release exclusive\n", __func__);
1830
1831 return rc;
1832}
1833
1834static int cyttsp4_core_suspend(struct device *dev)
1835{
1836 struct cyttsp4 *cd = dev_get_drvdata(dev);
1837 struct cyttsp4_mt_data *md = &cd->md;
1838 int rc;
1839
1840 md->is_suspended = true;
1841
1842 rc = cyttsp4_core_sleep(cd);
1843 if (rc < 0) {
1844 dev_err(dev, "%s: Error on sleep\n", __func__);
1845 return -EAGAIN;
1846 }
1847 return 0;
1848}
1849
1850static int cyttsp4_core_resume(struct device *dev)
1851{
1852 struct cyttsp4 *cd = dev_get_drvdata(dev);
1853 struct cyttsp4_mt_data *md = &cd->md;
1854 int rc;
1855
1856 md->is_suspended = false;
1857
1858 rc = cyttsp4_core_wake(cd);
1859 if (rc < 0) {
1860 dev_err(dev, "%s: Error on wake\n", __func__);
1861 return -EAGAIN;
1862 }
1863
1864 return 0;
1865}
1866#endif
1867
1868const struct dev_pm_ops cyttsp4_pm_ops = {
1869 SET_SYSTEM_SLEEP_PM_OPS(cyttsp4_core_suspend, cyttsp4_core_resume)
1870 SET_RUNTIME_PM_OPS(cyttsp4_core_suspend, cyttsp4_core_resume, NULL)
1871};
1872EXPORT_SYMBOL_GPL(cyttsp4_pm_ops);
1873
1874static int cyttsp4_mt_open(struct input_dev *input)
1875{
1876 pm_runtime_get(input->dev.parent);
1877 return 0;
1878}
1879
1880static void cyttsp4_mt_close(struct input_dev *input)
1881{
1882 struct cyttsp4_mt_data *md = input_get_drvdata(input);
1883 mutex_lock(&md->report_lock);
1884 if (!md->is_suspended)
1885 pm_runtime_put(input->dev.parent);
1886 mutex_unlock(&md->report_lock);
1887}
1888
1889
1890static int cyttsp4_setup_input_device(struct cyttsp4 *cd)
1891{
1892 struct device *dev = cd->dev;
1893 struct cyttsp4_mt_data *md = &cd->md;
1894 int signal = CY_IGNORE_VALUE;
1895 int max_x, max_y, max_p, min, max;
1896 int max_x_tmp, max_y_tmp;
1897 int i;
1898 int rc;
1899
1900 dev_vdbg(dev, "%s: Initialize event signals\n", __func__);
1901 __set_bit(EV_ABS, md->input->evbit);
1902 __set_bit(EV_REL, md->input->evbit);
1903 __set_bit(EV_KEY, md->input->evbit);
1904
1905 max_x_tmp = md->si->si_ofs.max_x;
1906 max_y_tmp = md->si->si_ofs.max_y;
1907
1908
1909 if (md->pdata->flags & CY_FLAG_FLIP) {
1910 max_x = max_y_tmp - 1;
1911 max_y = max_x_tmp - 1;
1912 } else {
1913 max_x = max_x_tmp - 1;
1914 max_y = max_y_tmp - 1;
1915 }
1916 max_p = md->si->si_ofs.max_p;
1917
1918
1919 for (i = 0; i < (md->pdata->frmwrk->size / CY_NUM_ABS_SET); i++) {
1920 signal = md->pdata->frmwrk->abs
1921 [(i * CY_NUM_ABS_SET) + CY_SIGNAL_OST];
1922 if (signal != CY_IGNORE_VALUE) {
1923 __set_bit(signal, md->input->absbit);
1924 min = md->pdata->frmwrk->abs
1925 [(i * CY_NUM_ABS_SET) + CY_MIN_OST];
1926 max = md->pdata->frmwrk->abs
1927 [(i * CY_NUM_ABS_SET) + CY_MAX_OST];
1928 if (i == CY_ABS_ID_OST) {
1929
1930 max = max - min;
1931 min = min - min;
1932 } else if (i == CY_ABS_X_OST)
1933 max = max_x;
1934 else if (i == CY_ABS_Y_OST)
1935 max = max_y;
1936 else if (i == CY_ABS_P_OST)
1937 max = max_p;
1938 input_set_abs_params(md->input, signal, min, max,
1939 md->pdata->frmwrk->abs
1940 [(i * CY_NUM_ABS_SET) + CY_FUZZ_OST],
1941 md->pdata->frmwrk->abs
1942 [(i * CY_NUM_ABS_SET) + CY_FLAT_OST]);
1943 dev_dbg(dev, "%s: register signal=%02X min=%d max=%d\n",
1944 __func__, signal, min, max);
1945 if ((i == CY_ABS_ID_OST) &&
1946 (md->si->si_ofs.tch_rec_size <
1947 CY_TMA4XX_TCH_REC_SIZE))
1948 break;
1949 }
1950 }
1951
1952 input_mt_init_slots(md->input, md->si->si_ofs.tch_abs[CY_TCH_T].max,
1953 INPUT_MT_DIRECT);
1954 rc = input_register_device(md->input);
1955 if (rc < 0)
1956 dev_err(dev, "%s: Error, failed register input device r=%d\n",
1957 __func__, rc);
1958 return rc;
1959}
1960
1961static int cyttsp4_mt_probe(struct cyttsp4 *cd)
1962{
1963 struct device *dev = cd->dev;
1964 struct cyttsp4_mt_data *md = &cd->md;
1965 struct cyttsp4_mt_platform_data *pdata = cd->pdata->mt_pdata;
1966 int rc = 0;
1967
1968 mutex_init(&md->report_lock);
1969 md->pdata = pdata;
1970
1971 dev_vdbg(dev, "%s: Create the input device and register it\n",
1972 __func__);
1973 md->input = input_allocate_device();
1974 if (md->input == NULL) {
1975 dev_err(dev, "%s: Error, failed to allocate input device\n",
1976 __func__);
1977 rc = -ENOSYS;
1978 goto error_alloc_failed;
1979 }
1980
1981 md->input->name = pdata->inp_dev_name;
1982 scnprintf(md->phys, sizeof(md->phys)-1, "%s", dev_name(dev));
1983 md->input->phys = md->phys;
1984 md->input->id.bustype = cd->bus_ops->bustype;
1985 md->input->dev.parent = dev;
1986 md->input->open = cyttsp4_mt_open;
1987 md->input->close = cyttsp4_mt_close;
1988 input_set_drvdata(md->input, md);
1989
1990
1991 md->si = &cd->sysinfo;
1992
1993 rc = cyttsp4_setup_input_device(cd);
1994 if (rc)
1995 goto error_init_input;
1996
1997 return 0;
1998
1999error_init_input:
2000 input_free_device(md->input);
2001error_alloc_failed:
2002 dev_err(dev, "%s failed.\n", __func__);
2003 return rc;
2004}
2005
2006struct cyttsp4 *cyttsp4_probe(const struct cyttsp4_bus_ops *ops,
2007 struct device *dev, u16 irq, size_t xfer_buf_size)
2008{
2009 struct cyttsp4 *cd;
2010 struct cyttsp4_platform_data *pdata = dev_get_platdata(dev);
2011 unsigned long irq_flags;
2012 int rc = 0;
2013
2014 if (!pdata || !pdata->core_pdata || !pdata->mt_pdata) {
2015 dev_err(dev, "%s: Missing platform data\n", __func__);
2016 rc = -ENODEV;
2017 goto error_no_pdata;
2018 }
2019
2020 cd = kzalloc(sizeof(*cd), GFP_KERNEL);
2021 if (!cd) {
2022 dev_err(dev, "%s: Error, kzalloc\n", __func__);
2023 rc = -ENOMEM;
2024 goto error_alloc_data;
2025 }
2026
2027 cd->xfer_buf = kzalloc(xfer_buf_size, GFP_KERNEL);
2028 if (!cd->xfer_buf) {
2029 dev_err(dev, "%s: Error, kzalloc\n", __func__);
2030 rc = -ENOMEM;
2031 goto error_free_cd;
2032 }
2033
2034
2035 cd->dev = dev;
2036 cd->pdata = pdata;
2037 cd->cpdata = pdata->core_pdata;
2038 cd->bus_ops = ops;
2039
2040
2041 mutex_init(&cd->system_lock);
2042 mutex_init(&cd->adap_lock);
2043
2044
2045 init_waitqueue_head(&cd->wait_q);
2046
2047
2048 INIT_WORK(&cd->startup_work, cyttsp4_startup_work_function);
2049 INIT_WORK(&cd->watchdog_work, cyttsp4_watchdog_work);
2050
2051
2052 cd->irq = gpio_to_irq(cd->cpdata->irq_gpio);
2053 if (cd->irq < 0) {
2054 rc = -EINVAL;
2055 goto error_free_xfer;
2056 }
2057
2058 dev_set_drvdata(dev, cd);
2059
2060
2061 if (cd->cpdata->init) {
2062 dev_dbg(cd->dev, "%s: Init HW\n", __func__);
2063 rc = cd->cpdata->init(cd->cpdata, 1, cd->dev);
2064 } else {
2065 dev_dbg(cd->dev, "%s: No HW INIT function\n", __func__);
2066 rc = 0;
2067 }
2068 if (rc < 0)
2069 dev_err(cd->dev, "%s: HW Init fail r=%d\n", __func__, rc);
2070
2071 dev_dbg(dev, "%s: initialize threaded irq=%d\n", __func__, cd->irq);
2072 if (cd->cpdata->level_irq_udelay > 0)
2073
2074 irq_flags = IRQF_TRIGGER_LOW | IRQF_ONESHOT;
2075 else
2076
2077 irq_flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT;
2078
2079 rc = request_threaded_irq(cd->irq, NULL, cyttsp4_irq, irq_flags,
2080 dev_name(dev), cd);
2081 if (rc < 0) {
2082 dev_err(dev, "%s: Error, could not request irq\n", __func__);
2083 goto error_request_irq;
2084 }
2085
2086
2087 timer_setup(&cd->watchdog_timer, cyttsp4_watchdog_timer, 0);
2088
2089
2090
2091
2092
2093 rc = cyttsp4_startup(cd);
2094
2095
2096 if (rc < 0 && cd->mode == CY_MODE_UNKNOWN) {
2097 dev_err(cd->dev, "%s: Fail initial startup r=%d\n",
2098 __func__, rc);
2099 goto error_startup;
2100 }
2101
2102 rc = cyttsp4_mt_probe(cd);
2103 if (rc < 0) {
2104 dev_err(dev, "%s: Error, fail mt probe\n", __func__);
2105 goto error_startup;
2106 }
2107
2108 pm_runtime_enable(dev);
2109
2110 return cd;
2111
2112error_startup:
2113 cancel_work_sync(&cd->startup_work);
2114 cyttsp4_stop_wd_timer(cd);
2115 pm_runtime_disable(dev);
2116 cyttsp4_free_si_ptrs(cd);
2117 free_irq(cd->irq, cd);
2118error_request_irq:
2119 if (cd->cpdata->init)
2120 cd->cpdata->init(cd->cpdata, 0, dev);
2121error_free_xfer:
2122 kfree(cd->xfer_buf);
2123error_free_cd:
2124 kfree(cd);
2125error_alloc_data:
2126error_no_pdata:
2127 dev_err(dev, "%s failed.\n", __func__);
2128 return ERR_PTR(rc);
2129}
2130EXPORT_SYMBOL_GPL(cyttsp4_probe);
2131
2132static void cyttsp4_mt_release(struct cyttsp4_mt_data *md)
2133{
2134 input_unregister_device(md->input);
2135 input_set_drvdata(md->input, NULL);
2136}
2137
2138int cyttsp4_remove(struct cyttsp4 *cd)
2139{
2140 struct device *dev = cd->dev;
2141
2142 cyttsp4_mt_release(&cd->md);
2143
2144
2145
2146
2147
2148 pm_runtime_suspend(dev);
2149 pm_runtime_disable(dev);
2150
2151 cancel_work_sync(&cd->startup_work);
2152
2153 cyttsp4_stop_wd_timer(cd);
2154
2155 free_irq(cd->irq, cd);
2156 if (cd->cpdata->init)
2157 cd->cpdata->init(cd->cpdata, 0, dev);
2158 cyttsp4_free_si_ptrs(cd);
2159 kfree(cd);
2160 return 0;
2161}
2162EXPORT_SYMBOL_GPL(cyttsp4_remove);
2163
2164MODULE_LICENSE("GPL");
2165MODULE_DESCRIPTION("Cypress TrueTouch(R) Standard touchscreen core driver");
2166MODULE_AUTHOR("Cypress");
2167
