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9#include <linux/delay.h>
10#include <linux/device.h>
11#include <linux/mod_devicetable.h>
12#include <linux/soundwire/sdw.h>
13#include <linux/soundwire/sdw_type.h>
14#include <linux/soundwire/sdw_registers.h>
15#include <linux/module.h>
16#include <linux/regmap.h>
17#include <sound/soc.h>
18#include "rt711.h"
19#include "rt711-sdw.h"
20
21static bool rt711_readable_register(struct device *dev, unsigned int reg)
22{
23 switch (reg) {
24 case 0x00e0:
25 case 0x00f0:
26 case 0x2012 ... 0x2016:
27 case 0x201a ... 0x2027:
28 case 0x2029 ... 0x202a:
29 case 0x202d ... 0x2034:
30 case 0x2201 ... 0x2204:
31 case 0x2206 ... 0x2212:
32 case 0x2220 ... 0x2223:
33 case 0x2230 ... 0x2239:
34 case 0x2f01 ... 0x2f0f:
35 case 0x3000 ... 0x3fff:
36 case 0x7000 ... 0x7fff:
37 case 0x8300 ... 0x83ff:
38 case 0x9c00 ... 0x9cff:
39 case 0xb900 ... 0xb9ff:
40 case 0x752009:
41 case 0x752011:
42 case 0x75201a:
43 case 0x752045:
44 case 0x752046:
45 case 0x752048:
46 case 0x75204a:
47 case 0x75206b:
48 case 0x75206f:
49 case 0x752080:
50 case 0x752081:
51 case 0x752091:
52 case 0x755800:
53 return true;
54 default:
55 return false;
56 }
57}
58
59static bool rt711_volatile_register(struct device *dev, unsigned int reg)
60{
61 switch (reg) {
62 case 0x2016:
63 case 0x201b:
64 case 0x201c:
65 case 0x201d:
66 case 0x201f:
67 case 0x2021:
68 case 0x2023:
69 case 0x2230:
70 case 0x2012 ... 0x2015:
71 case 0x202d ... 0x202f:
72 case 0x2201 ... 0x2212:
73 case 0x2220 ... 0x2223:
74 case 0x9c00 ... 0x9cff:
75 case 0xb900 ... 0xb9ff:
76 case 0xff01:
77 case 0x75201a:
78 case 0x752046:
79 case 0x752080:
80 case 0x752081:
81 case 0x755800:
82 return true;
83 default:
84 return false;
85 }
86}
87
88static int rt711_sdw_read(void *context, unsigned int reg, unsigned int *val)
89{
90 struct device *dev = context;
91 struct rt711_priv *rt711 = dev_get_drvdata(dev);
92 unsigned int sdw_data_3, sdw_data_2, sdw_data_1, sdw_data_0;
93 unsigned int reg2 = 0, reg3 = 0, reg4 = 0, mask, nid, val2;
94 unsigned int is_hda_reg = 1, is_index_reg = 0;
95 int ret;
96
97 if (reg > 0xffff)
98 is_index_reg = 1;
99
100 mask = reg & 0xf000;
101
102 if (is_index_reg) {
103 val2 = reg & 0xff;
104 reg = reg >> 8;
105 nid = reg & 0xff;
106 ret = regmap_write(rt711->sdw_regmap, reg, 0);
107 if (ret < 0)
108 return ret;
109 reg2 = reg + 0x1000;
110 reg2 |= 0x80;
111 ret = regmap_write(rt711->sdw_regmap, reg2, val2);
112 if (ret < 0)
113 return ret;
114
115 reg3 = RT711_PRIV_DATA_R_H | nid;
116 ret = regmap_write(rt711->sdw_regmap,
117 reg3, ((*val >> 8) & 0xff));
118 if (ret < 0)
119 return ret;
120 reg4 = reg3 + 0x1000;
121 reg4 |= 0x80;
122 ret = regmap_write(rt711->sdw_regmap, reg4, (*val & 0xff));
123 if (ret < 0)
124 return ret;
125 } else if (mask == 0x3000) {
126 reg += 0x8000;
127 ret = regmap_write(rt711->sdw_regmap, reg, *val);
128 if (ret < 0)
129 return ret;
130 } else if (mask == 0x7000) {
131 reg += 0x2000;
132 reg |= 0x800;
133 ret = regmap_write(rt711->sdw_regmap,
134 reg, ((*val >> 8) & 0xff));
135 if (ret < 0)
136 return ret;
137 reg2 = reg + 0x1000;
138 reg2 |= 0x80;
139 ret = regmap_write(rt711->sdw_regmap, reg2, (*val & 0xff));
140 if (ret < 0)
141 return ret;
142 } else if ((reg & 0xff00) == 0x8300) {
143 reg2 = reg - 0x1000;
144 reg2 &= ~0x80;
145 ret = regmap_write(rt711->sdw_regmap,
146 reg2, ((*val >> 8) & 0xff));
147 if (ret < 0)
148 return ret;
149 ret = regmap_write(rt711->sdw_regmap, reg, (*val & 0xff));
150 if (ret < 0)
151 return ret;
152 } else if (mask == 0x9000) {
153 ret = regmap_write(rt711->sdw_regmap,
154 reg, ((*val >> 8) & 0xff));
155 if (ret < 0)
156 return ret;
157 reg2 = reg + 0x1000;
158 reg2 |= 0x80;
159 ret = regmap_write(rt711->sdw_regmap, reg2, (*val & 0xff));
160 if (ret < 0)
161 return ret;
162 } else if (mask == 0xb000) {
163 ret = regmap_write(rt711->sdw_regmap, reg, *val);
164 if (ret < 0)
165 return ret;
166 } else {
167 ret = regmap_read(rt711->sdw_regmap, reg, val);
168 if (ret < 0)
169 return ret;
170 is_hda_reg = 0;
171 }
172
173 if (is_hda_reg || is_index_reg) {
174 sdw_data_3 = 0;
175 sdw_data_2 = 0;
176 sdw_data_1 = 0;
177 sdw_data_0 = 0;
178 ret = regmap_read(rt711->sdw_regmap,
179 RT711_READ_HDA_3, &sdw_data_3);
180 if (ret < 0)
181 return ret;
182 ret = regmap_read(rt711->sdw_regmap,
183 RT711_READ_HDA_2, &sdw_data_2);
184 if (ret < 0)
185 return ret;
186 ret = regmap_read(rt711->sdw_regmap,
187 RT711_READ_HDA_1, &sdw_data_1);
188 if (ret < 0)
189 return ret;
190 ret = regmap_read(rt711->sdw_regmap,
191 RT711_READ_HDA_0, &sdw_data_0);
192 if (ret < 0)
193 return ret;
194 *val = ((sdw_data_3 & 0xff) << 24) |
195 ((sdw_data_2 & 0xff) << 16) |
196 ((sdw_data_1 & 0xff) << 8) | (sdw_data_0 & 0xff);
197 }
198
199 if (is_hda_reg == 0)
200 dev_dbg(dev, "[%s] %04x => %08x\n", __func__, reg, *val);
201 else if (is_index_reg)
202 dev_dbg(dev, "[%s] %04x %04x %04x %04x => %08x\n",
203 __func__, reg, reg2, reg3, reg4, *val);
204 else
205 dev_dbg(dev, "[%s] %04x %04x => %08x\n",
206 __func__, reg, reg2, *val);
207
208 return 0;
209}
210
211static int rt711_sdw_write(void *context, unsigned int reg, unsigned int val)
212{
213 struct device *dev = context;
214 struct rt711_priv *rt711 = dev_get_drvdata(dev);
215 unsigned int reg2 = 0, reg3, reg4, nid, mask, val2;
216 unsigned int is_index_reg = 0;
217 int ret;
218
219 if (reg > 0xffff)
220 is_index_reg = 1;
221
222 mask = reg & 0xf000;
223
224 if (is_index_reg) {
225 val2 = reg & 0xff;
226 reg = reg >> 8;
227 nid = reg & 0xff;
228 ret = regmap_write(rt711->sdw_regmap, reg, 0);
229 if (ret < 0)
230 return ret;
231 reg2 = reg + 0x1000;
232 reg2 |= 0x80;
233 ret = regmap_write(rt711->sdw_regmap, reg2, val2);
234 if (ret < 0)
235 return ret;
236
237 reg3 = RT711_PRIV_DATA_W_H | nid;
238 ret = regmap_write(rt711->sdw_regmap,
239 reg3, ((val >> 8) & 0xff));
240 if (ret < 0)
241 return ret;
242 reg4 = reg3 + 0x1000;
243 reg4 |= 0x80;
244 ret = regmap_write(rt711->sdw_regmap, reg4, (val & 0xff));
245 if (ret < 0)
246 return ret;
247 is_index_reg = 1;
248 } else if (reg < 0x4fff) {
249 ret = regmap_write(rt711->sdw_regmap, reg, val);
250 if (ret < 0)
251 return ret;
252 } else if (reg == RT711_FUNC_RESET) {
253 ret = regmap_write(rt711->sdw_regmap, reg, val);
254 if (ret < 0)
255 return ret;
256 } else if (mask == 0x7000) {
257 ret = regmap_write(rt711->sdw_regmap,
258 reg, ((val >> 8) & 0xff));
259 if (ret < 0)
260 return ret;
261 reg2 = reg + 0x1000;
262 reg2 |= 0x80;
263 ret = regmap_write(rt711->sdw_regmap, reg2, (val & 0xff));
264 if (ret < 0)
265 return ret;
266 } else if ((reg & 0xff00) == 0x8300) {
267 reg2 = reg - 0x1000;
268 reg2 &= ~0x80;
269 ret = regmap_write(rt711->sdw_regmap,
270 reg2, ((val >> 8) & 0xff));
271 if (ret < 0)
272 return ret;
273 ret = regmap_write(rt711->sdw_regmap, reg, (val & 0xff));
274 if (ret < 0)
275 return ret;
276 }
277
278 if (reg2 == 0)
279 dev_dbg(dev, "[%s] %04x <= %04x\n", __func__, reg, val);
280 else if (is_index_reg)
281 dev_dbg(dev, "[%s] %04x %04x %04x %04x <= %04x %04x\n",
282 __func__, reg, reg2, reg3, reg4, val2, val);
283 else
284 dev_dbg(dev, "[%s] %04x %04x <= %04x\n",
285 __func__, reg, reg2, val);
286
287 return 0;
288}
289
290static const struct regmap_config rt711_regmap = {
291 .reg_bits = 24,
292 .val_bits = 32,
293 .readable_reg = rt711_readable_register,
294 .volatile_reg = rt711_volatile_register,
295 .max_register = 0x755800,
296 .reg_defaults = rt711_reg_defaults,
297 .num_reg_defaults = ARRAY_SIZE(rt711_reg_defaults),
298 .cache_type = REGCACHE_RBTREE,
299 .use_single_read = true,
300 .use_single_write = true,
301 .reg_read = rt711_sdw_read,
302 .reg_write = rt711_sdw_write,
303};
304
305static const struct regmap_config rt711_sdw_regmap = {
306 .name = "sdw",
307 .reg_bits = 32,
308 .val_bits = 8,
309 .readable_reg = rt711_readable_register,
310 .max_register = 0xff01,
311 .cache_type = REGCACHE_NONE,
312 .use_single_read = true,
313 .use_single_write = true,
314};
315
316static int rt711_update_status(struct sdw_slave *slave,
317 enum sdw_slave_status status)
318{
319 struct rt711_priv *rt711 = dev_get_drvdata(&slave->dev);
320
321
322 rt711->status = status;
323
324 if (status == SDW_SLAVE_UNATTACHED)
325 rt711->hw_init = false;
326
327
328
329
330
331 if (rt711->hw_init || rt711->status != SDW_SLAVE_ATTACHED)
332 return 0;
333
334
335 return rt711_io_init(&slave->dev, slave);
336}
337
338static int rt711_read_prop(struct sdw_slave *slave)
339{
340 struct sdw_slave_prop *prop = &slave->prop;
341 int nval;
342 int i, j;
343 u32 bit;
344 unsigned long addr;
345 struct sdw_dpn_prop *dpn;
346
347 prop->scp_int1_mask = SDW_SCP_INT1_IMPL_DEF | SDW_SCP_INT1_BUS_CLASH |
348 SDW_SCP_INT1_PARITY;
349 prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
350
351 prop->paging_support = false;
352
353
354 prop->source_ports = 0x14;
355 prop->sink_ports = 0x8;
356
357 nval = hweight32(prop->source_ports);
358 prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
359 sizeof(*prop->src_dpn_prop),
360 GFP_KERNEL);
361 if (!prop->src_dpn_prop)
362 return -ENOMEM;
363
364 i = 0;
365 dpn = prop->src_dpn_prop;
366 addr = prop->source_ports;
367 for_each_set_bit(bit, &addr, 32) {
368 dpn[i].num = bit;
369 dpn[i].type = SDW_DPN_FULL;
370 dpn[i].simple_ch_prep_sm = true;
371 dpn[i].ch_prep_timeout = 10;
372 i++;
373 }
374
375
376 nval = hweight32(prop->sink_ports);
377 prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,
378 sizeof(*prop->sink_dpn_prop),
379 GFP_KERNEL);
380 if (!prop->sink_dpn_prop)
381 return -ENOMEM;
382
383 j = 0;
384 dpn = prop->sink_dpn_prop;
385 addr = prop->sink_ports;
386 for_each_set_bit(bit, &addr, 32) {
387 dpn[j].num = bit;
388 dpn[j].type = SDW_DPN_FULL;
389 dpn[j].simple_ch_prep_sm = true;
390 dpn[j].ch_prep_timeout = 10;
391 j++;
392 }
393
394
395 prop->clk_stop_timeout = 20;
396
397
398 prop->wake_capable = 1;
399
400 return 0;
401}
402
403static int rt711_bus_config(struct sdw_slave *slave,
404 struct sdw_bus_params *params)
405{
406 struct rt711_priv *rt711 = dev_get_drvdata(&slave->dev);
407 int ret;
408
409 memcpy(&rt711->params, params, sizeof(*params));
410
411 ret = rt711_clock_config(&slave->dev);
412 if (ret < 0)
413 dev_err(&slave->dev, "Invalid clk config");
414
415 return ret;
416}
417
418static int rt711_interrupt_callback(struct sdw_slave *slave,
419 struct sdw_slave_intr_status *status)
420{
421 struct rt711_priv *rt711 = dev_get_drvdata(&slave->dev);
422
423 dev_dbg(&slave->dev,
424 "%s control_port_stat=%x", __func__, status->control_port);
425
426 mutex_lock(&rt711->disable_irq_lock);
427 if (status->control_port & 0x4 && !rt711->disable_irq) {
428 mod_delayed_work(system_power_efficient_wq,
429 &rt711->jack_detect_work, msecs_to_jiffies(250));
430 }
431 mutex_unlock(&rt711->disable_irq_lock);
432
433 return 0;
434}
435
436static const struct sdw_slave_ops rt711_slave_ops = {
437 .read_prop = rt711_read_prop,
438 .interrupt_callback = rt711_interrupt_callback,
439 .update_status = rt711_update_status,
440 .bus_config = rt711_bus_config,
441};
442
443static int rt711_sdw_probe(struct sdw_slave *slave,
444 const struct sdw_device_id *id)
445{
446 struct regmap *sdw_regmap, *regmap;
447
448
449 sdw_regmap = devm_regmap_init_sdw(slave, &rt711_sdw_regmap);
450 if (IS_ERR(sdw_regmap))
451 return PTR_ERR(sdw_regmap);
452
453 regmap = devm_regmap_init(&slave->dev, NULL,
454 &slave->dev, &rt711_regmap);
455 if (IS_ERR(regmap))
456 return PTR_ERR(regmap);
457
458 rt711_init(&slave->dev, sdw_regmap, regmap, slave);
459
460 return 0;
461}
462
463static int rt711_sdw_remove(struct sdw_slave *slave)
464{
465 struct rt711_priv *rt711 = dev_get_drvdata(&slave->dev);
466
467 if (rt711 && rt711->hw_init) {
468 cancel_delayed_work_sync(&rt711->jack_detect_work);
469 cancel_delayed_work_sync(&rt711->jack_btn_check_work);
470 cancel_work_sync(&rt711->calibration_work);
471 }
472
473 return 0;
474}
475
476static const struct sdw_device_id rt711_id[] = {
477 SDW_SLAVE_ENTRY_EXT(0x025d, 0x711, 0x2, 0, 0),
478 {},
479};
480MODULE_DEVICE_TABLE(sdw, rt711_id);
481
482static int __maybe_unused rt711_dev_suspend(struct device *dev)
483{
484 struct rt711_priv *rt711 = dev_get_drvdata(dev);
485
486 if (!rt711->hw_init)
487 return 0;
488
489 cancel_delayed_work_sync(&rt711->jack_detect_work);
490 cancel_delayed_work_sync(&rt711->jack_btn_check_work);
491 cancel_work_sync(&rt711->calibration_work);
492
493 regcache_cache_only(rt711->regmap, true);
494
495 return 0;
496}
497
498static int __maybe_unused rt711_dev_system_suspend(struct device *dev)
499{
500 struct rt711_priv *rt711 = dev_get_drvdata(dev);
501 struct sdw_slave *slave = dev_to_sdw_dev(dev);
502 int ret;
503
504 if (!rt711->hw_init)
505 return 0;
506
507
508
509
510
511
512 mutex_lock(&rt711->disable_irq_lock);
513 rt711->disable_irq = true;
514 ret = sdw_update_no_pm(slave, SDW_SCP_INTMASK1,
515 SDW_SCP_INT1_IMPL_DEF, 0);
516 mutex_unlock(&rt711->disable_irq_lock);
517
518 if (ret < 0) {
519
520 dev_dbg(&slave->dev, "%s: could not disable imp-def interrupts\n:", __func__);
521 }
522
523 return rt711_dev_suspend(dev);
524}
525
526#define RT711_PROBE_TIMEOUT 5000
527
528static int __maybe_unused rt711_dev_resume(struct device *dev)
529{
530 struct sdw_slave *slave = dev_to_sdw_dev(dev);
531 struct rt711_priv *rt711 = dev_get_drvdata(dev);
532 unsigned long time;
533
534 if (!rt711->first_hw_init)
535 return 0;
536
537 if (!slave->unattach_request)
538 goto regmap_sync;
539
540 time = wait_for_completion_timeout(&slave->initialization_complete,
541 msecs_to_jiffies(RT711_PROBE_TIMEOUT));
542 if (!time) {
543 dev_err(&slave->dev, "Initialization not complete, timed out\n");
544 return -ETIMEDOUT;
545 }
546
547regmap_sync:
548 slave->unattach_request = 0;
549 regcache_cache_only(rt711->regmap, false);
550 regcache_sync_region(rt711->regmap, 0x3000, 0x8fff);
551 regcache_sync_region(rt711->regmap, 0x752009, 0x752091);
552
553 return 0;
554}
555
556static const struct dev_pm_ops rt711_pm = {
557 SET_SYSTEM_SLEEP_PM_OPS(rt711_dev_system_suspend, rt711_dev_resume)
558 SET_RUNTIME_PM_OPS(rt711_dev_suspend, rt711_dev_resume, NULL)
559};
560
561static struct sdw_driver rt711_sdw_driver = {
562 .driver = {
563 .name = "rt711",
564 .owner = THIS_MODULE,
565 .pm = &rt711_pm,
566 },
567 .probe = rt711_sdw_probe,
568 .remove = rt711_sdw_remove,
569 .ops = &rt711_slave_ops,
570 .id_table = rt711_id,
571};
572module_sdw_driver(rt711_sdw_driver);
573
574MODULE_DESCRIPTION("ASoC RT711 SDW driver");
575MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
576MODULE_LICENSE("GPL");
577
