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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/module.h>
15#include <linux/regmap.h>
16#include <sound/soc.h>
17#include "rt711.h"
18#include "rt711-sdw.h"
19
20static bool rt711_readable_register(struct device *dev, unsigned int reg)
21{
22 switch (reg) {
23 case 0x00e0:
24 case 0x00f0:
25 case 0x2012 ... 0x2016:
26 case 0x201a ... 0x2027:
27 case 0x2029 ... 0x202a:
28 case 0x202d ... 0x2034:
29 case 0x2201 ... 0x2204:
30 case 0x2206 ... 0x2212:
31 case 0x2220 ... 0x2223:
32 case 0x2230 ... 0x2239:
33 case 0x2f01 ... 0x2f0f:
34 case 0x3000 ... 0x3fff:
35 case 0x7000 ... 0x7fff:
36 case 0x8300 ... 0x83ff:
37 case 0x9c00 ... 0x9cff:
38 case 0xb900 ... 0xb9ff:
39 case 0x752009:
40 case 0x752011:
41 case 0x75201a:
42 case 0x752045:
43 case 0x752046:
44 case 0x752048:
45 case 0x75204a:
46 case 0x75206b:
47 case 0x75206f:
48 case 0x752080:
49 case 0x752081:
50 case 0x752091:
51 case 0x755800:
52 return true;
53 default:
54 return false;
55 }
56}
57
58static bool rt711_volatile_register(struct device *dev, unsigned int reg)
59{
60 switch (reg) {
61 case 0x2016:
62 case 0x201b:
63 case 0x201c:
64 case 0x201d:
65 case 0x201f:
66 case 0x2021:
67 case 0x2023:
68 case 0x2230:
69 case 0x2012 ... 0x2015:
70 case 0x202d ... 0x202f:
71 case 0x2201 ... 0x2212:
72 case 0x2220 ... 0x2223:
73 case 0x9c00 ... 0x9cff:
74 case 0xb900 ... 0xb9ff:
75 case 0xff01:
76 case 0x75201a:
77 case 0x752046:
78 case 0x752080:
79 case 0x752081:
80 case 0x755800:
81 return true;
82 default:
83 return false;
84 }
85}
86
87static int rt711_sdw_read(void *context, unsigned int reg, unsigned int *val)
88{
89 struct device *dev = context;
90 struct rt711_priv *rt711 = dev_get_drvdata(dev);
91 unsigned int sdw_data_3, sdw_data_2, sdw_data_1, sdw_data_0;
92 unsigned int reg2 = 0, reg3 = 0, reg4 = 0, mask, nid, val2;
93 unsigned int is_hda_reg = 1, is_index_reg = 0;
94 int ret;
95
96 if (reg > 0xffff)
97 is_index_reg = 1;
98
99 mask = reg & 0xf000;
100
101 if (is_index_reg) {
102 val2 = reg & 0xff;
103 reg = reg >> 8;
104 nid = reg & 0xff;
105 ret = regmap_write(rt711->sdw_regmap, reg, 0);
106 if (ret < 0)
107 return ret;
108 reg2 = reg + 0x1000;
109 reg2 |= 0x80;
110 ret = regmap_write(rt711->sdw_regmap, reg2, val2);
111 if (ret < 0)
112 return ret;
113
114 reg3 = RT711_PRIV_DATA_R_H | nid;
115 ret = regmap_write(rt711->sdw_regmap,
116 reg3, ((*val >> 8) & 0xff));
117 if (ret < 0)
118 return ret;
119 reg4 = reg3 + 0x1000;
120 reg4 |= 0x80;
121 ret = regmap_write(rt711->sdw_regmap, reg4, (*val & 0xff));
122 if (ret < 0)
123 return ret;
124 } else if (mask == 0x3000) {
125 reg += 0x8000;
126 ret = regmap_write(rt711->sdw_regmap, reg, *val);
127 if (ret < 0)
128 return ret;
129 } else if (mask == 0x7000) {
130 reg += 0x2000;
131 reg |= 0x800;
132 ret = regmap_write(rt711->sdw_regmap,
133 reg, ((*val >> 8) & 0xff));
134 if (ret < 0)
135 return ret;
136 reg2 = reg + 0x1000;
137 reg2 |= 0x80;
138 ret = regmap_write(rt711->sdw_regmap, reg2, (*val & 0xff));
139 if (ret < 0)
140 return ret;
141 } else if ((reg & 0xff00) == 0x8300) {
142 reg2 = reg - 0x1000;
143 reg2 &= ~0x80;
144 ret = regmap_write(rt711->sdw_regmap,
145 reg2, ((*val >> 8) & 0xff));
146 if (ret < 0)
147 return ret;
148 ret = regmap_write(rt711->sdw_regmap, reg, (*val & 0xff));
149 if (ret < 0)
150 return ret;
151 } else if (mask == 0x9000) {
152 ret = regmap_write(rt711->sdw_regmap,
153 reg, ((*val >> 8) & 0xff));
154 if (ret < 0)
155 return ret;
156 reg2 = reg + 0x1000;
157 reg2 |= 0x80;
158 ret = regmap_write(rt711->sdw_regmap, reg2, (*val & 0xff));
159 if (ret < 0)
160 return ret;
161 } else if (mask == 0xb000) {
162 ret = regmap_write(rt711->sdw_regmap, reg, *val);
163 if (ret < 0)
164 return ret;
165 } else {
166 ret = regmap_read(rt711->sdw_regmap, reg, val);
167 if (ret < 0)
168 return ret;
169 is_hda_reg = 0;
170 }
171
172 if (is_hda_reg || is_index_reg) {
173 sdw_data_3 = 0;
174 sdw_data_2 = 0;
175 sdw_data_1 = 0;
176 sdw_data_0 = 0;
177 ret = regmap_read(rt711->sdw_regmap,
178 RT711_READ_HDA_3, &sdw_data_3);
179 if (ret < 0)
180 return ret;
181 ret = regmap_read(rt711->sdw_regmap,
182 RT711_READ_HDA_2, &sdw_data_2);
183 if (ret < 0)
184 return ret;
185 ret = regmap_read(rt711->sdw_regmap,
186 RT711_READ_HDA_1, &sdw_data_1);
187 if (ret < 0)
188 return ret;
189 ret = regmap_read(rt711->sdw_regmap,
190 RT711_READ_HDA_0, &sdw_data_0);
191 if (ret < 0)
192 return ret;
193 *val = ((sdw_data_3 & 0xff) << 24) |
194 ((sdw_data_2 & 0xff) << 16) |
195 ((sdw_data_1 & 0xff) << 8) | (sdw_data_0 & 0xff);
196 }
197
198 if (is_hda_reg == 0)
199 dev_dbg(dev, "[%s] %04x => %08x\n", __func__, reg, *val);
200 else if (is_index_reg)
201 dev_dbg(dev, "[%s] %04x %04x %04x %04x => %08x\n",
202 __func__, reg, reg2, reg3, reg4, *val);
203 else
204 dev_dbg(dev, "[%s] %04x %04x => %08x\n",
205 __func__, reg, reg2, *val);
206
207 return 0;
208}
209
210static int rt711_sdw_write(void *context, unsigned int reg, unsigned int val)
211{
212 struct device *dev = context;
213 struct rt711_priv *rt711 = dev_get_drvdata(dev);
214 unsigned int reg2 = 0, reg3, reg4, nid, mask, val2;
215 unsigned int is_index_reg = 0;
216 int ret;
217
218 if (reg > 0xffff)
219 is_index_reg = 1;
220
221 mask = reg & 0xf000;
222
223 if (is_index_reg) {
224 val2 = reg & 0xff;
225 reg = reg >> 8;
226 nid = reg & 0xff;
227 ret = regmap_write(rt711->sdw_regmap, reg, 0);
228 if (ret < 0)
229 return ret;
230 reg2 = reg + 0x1000;
231 reg2 |= 0x80;
232 ret = regmap_write(rt711->sdw_regmap, reg2, val2);
233 if (ret < 0)
234 return ret;
235
236 reg3 = RT711_PRIV_DATA_W_H | nid;
237 ret = regmap_write(rt711->sdw_regmap,
238 reg3, ((val >> 8) & 0xff));
239 if (ret < 0)
240 return ret;
241 reg4 = reg3 + 0x1000;
242 reg4 |= 0x80;
243 ret = regmap_write(rt711->sdw_regmap, reg4, (val & 0xff));
244 if (ret < 0)
245 return ret;
246 is_index_reg = 1;
247 } else if (reg < 0x4fff) {
248 ret = regmap_write(rt711->sdw_regmap, reg, val);
249 if (ret < 0)
250 return ret;
251 } else if (reg == RT711_FUNC_RESET) {
252 ret = regmap_write(rt711->sdw_regmap, reg, val);
253 if (ret < 0)
254 return ret;
255 } else if (mask == 0x7000) {
256 ret = regmap_write(rt711->sdw_regmap,
257 reg, ((val >> 8) & 0xff));
258 if (ret < 0)
259 return ret;
260 reg2 = reg + 0x1000;
261 reg2 |= 0x80;
262 ret = regmap_write(rt711->sdw_regmap, reg2, (val & 0xff));
263 if (ret < 0)
264 return ret;
265 } else if ((reg & 0xff00) == 0x8300) {
266 reg2 = reg - 0x1000;
267 reg2 &= ~0x80;
268 ret = regmap_write(rt711->sdw_regmap,
269 reg2, ((val >> 8) & 0xff));
270 if (ret < 0)
271 return ret;
272 ret = regmap_write(rt711->sdw_regmap, reg, (val & 0xff));
273 if (ret < 0)
274 return ret;
275 }
276
277 if (reg2 == 0)
278 dev_dbg(dev, "[%s] %04x <= %04x\n", __func__, reg, val);
279 else if (is_index_reg)
280 dev_dbg(dev, "[%s] %04x %04x %04x %04x <= %04x %04x\n",
281 __func__, reg, reg2, reg3, reg4, val2, val);
282 else
283 dev_dbg(dev, "[%s] %04x %04x <= %04x\n",
284 __func__, reg, reg2, val);
285
286 return 0;
287}
288
289static const struct regmap_config rt711_regmap = {
290 .reg_bits = 24,
291 .val_bits = 32,
292 .readable_reg = rt711_readable_register,
293 .volatile_reg = rt711_volatile_register,
294 .max_register = 0x755800,
295 .reg_defaults = rt711_reg_defaults,
296 .num_reg_defaults = ARRAY_SIZE(rt711_reg_defaults),
297 .cache_type = REGCACHE_RBTREE,
298 .use_single_read = true,
299 .use_single_write = true,
300 .reg_read = rt711_sdw_read,
301 .reg_write = rt711_sdw_write,
302};
303
304static const struct regmap_config rt711_sdw_regmap = {
305 .name = "sdw",
306 .reg_bits = 32,
307 .val_bits = 8,
308 .readable_reg = rt711_readable_register,
309 .max_register = 0xff01,
310 .cache_type = REGCACHE_NONE,
311 .use_single_read = true,
312 .use_single_write = true,
313};
314
315static int rt711_update_status(struct sdw_slave *slave,
316 enum sdw_slave_status status)
317{
318 struct rt711_priv *rt711 = dev_get_drvdata(&slave->dev);
319
320
321 rt711->status = status;
322
323 if (status == SDW_SLAVE_UNATTACHED)
324 rt711->hw_init = false;
325
326
327
328
329
330 if (rt711->hw_init || rt711->status != SDW_SLAVE_ATTACHED)
331 return 0;
332
333
334 return rt711_io_init(&slave->dev, slave);
335}
336
337static int rt711_read_prop(struct sdw_slave *slave)
338{
339 struct sdw_slave_prop *prop = &slave->prop;
340 int nval, i, num_of_ports = 1;
341 u32 bit;
342 unsigned long addr;
343 struct sdw_dpn_prop *dpn;
344
345 prop->paging_support = false;
346
347
348 prop->source_ports = 0x14;
349 prop->sink_ports = 0x8;
350
351 nval = hweight32(prop->source_ports);
352 num_of_ports += nval;
353 prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
354 sizeof(*prop->src_dpn_prop),
355 GFP_KERNEL);
356 if (!prop->src_dpn_prop)
357 return -ENOMEM;
358
359 i = 0;
360 dpn = prop->src_dpn_prop;
361 addr = prop->source_ports;
362 for_each_set_bit(bit, &addr, 32) {
363 dpn[i].num = bit;
364 dpn[i].type = SDW_DPN_FULL;
365 dpn[i].simple_ch_prep_sm = true;
366 dpn[i].ch_prep_timeout = 10;
367 i++;
368 }
369
370
371 nval = hweight32(prop->sink_ports);
372 num_of_ports += nval;
373 prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,
374 sizeof(*prop->sink_dpn_prop),
375 GFP_KERNEL);
376 if (!prop->sink_dpn_prop)
377 return -ENOMEM;
378
379 i = 0;
380 dpn = prop->sink_dpn_prop;
381 addr = prop->sink_ports;
382 for_each_set_bit(bit, &addr, 32) {
383 dpn[i].num = bit;
384 dpn[i].type = SDW_DPN_FULL;
385 dpn[i].simple_ch_prep_sm = true;
386 dpn[i].ch_prep_timeout = 10;
387 i++;
388 }
389
390
391 slave->port_ready = devm_kcalloc(&slave->dev, num_of_ports,
392 sizeof(*slave->port_ready),
393 GFP_KERNEL);
394 if (!slave->port_ready)
395 return -ENOMEM;
396
397
398 for (i = 0; i < num_of_ports; i++)
399 init_completion(&slave->port_ready[i]);
400
401
402 prop->clk_stop_timeout = 20;
403
404
405 prop->wake_capable = 1;
406
407 return 0;
408}
409
410static int rt711_bus_config(struct sdw_slave *slave,
411 struct sdw_bus_params *params)
412{
413 struct rt711_priv *rt711 = dev_get_drvdata(&slave->dev);
414 int ret;
415
416 memcpy(&rt711->params, params, sizeof(*params));
417
418 ret = rt711_clock_config(&slave->dev);
419 if (ret < 0)
420 dev_err(&slave->dev, "Invalid clk config");
421
422 return ret;
423}
424
425static int rt711_interrupt_callback(struct sdw_slave *slave,
426 struct sdw_slave_intr_status *status)
427{
428 struct rt711_priv *rt711 = dev_get_drvdata(&slave->dev);
429
430 dev_dbg(&slave->dev,
431 "%s control_port_stat=%x", __func__, status->control_port);
432
433 if (status->control_port & 0x4) {
434 mod_delayed_work(system_power_efficient_wq,
435 &rt711->jack_detect_work, msecs_to_jiffies(250));
436 }
437
438 return 0;
439}
440
441static struct sdw_slave_ops rt711_slave_ops = {
442 .read_prop = rt711_read_prop,
443 .interrupt_callback = rt711_interrupt_callback,
444 .update_status = rt711_update_status,
445 .bus_config = rt711_bus_config,
446};
447
448static int rt711_sdw_probe(struct sdw_slave *slave,
449 const struct sdw_device_id *id)
450{
451 struct regmap *sdw_regmap, *regmap;
452
453
454 sdw_regmap = devm_regmap_init_sdw(slave, &rt711_sdw_regmap);
455 if (IS_ERR(sdw_regmap))
456 return PTR_ERR(sdw_regmap);
457
458 regmap = devm_regmap_init(&slave->dev, NULL,
459 &slave->dev, &rt711_regmap);
460 if (IS_ERR(regmap))
461 return PTR_ERR(regmap);
462
463 rt711_init(&slave->dev, sdw_regmap, regmap, slave);
464
465 return 0;
466}
467
468static int rt711_sdw_remove(struct sdw_slave *slave)
469{
470 struct rt711_priv *rt711 = dev_get_drvdata(&slave->dev);
471
472 if (rt711 && rt711->hw_init) {
473 cancel_delayed_work(&rt711->jack_detect_work);
474 cancel_delayed_work(&rt711->jack_btn_check_work);
475 cancel_work_sync(&rt711->calibration_work);
476 }
477
478 return 0;
479}
480
481static const struct sdw_device_id rt711_id[] = {
482 SDW_SLAVE_ENTRY(0x025d, 0x711, 0),
483 {},
484};
485MODULE_DEVICE_TABLE(sdw, rt711_id);
486
487static int __maybe_unused rt711_dev_suspend(struct device *dev)
488{
489 struct rt711_priv *rt711 = dev_get_drvdata(dev);
490
491 if (!rt711->hw_init)
492 return 0;
493
494 regcache_cache_only(rt711->regmap, true);
495
496 return 0;
497}
498
499#define RT711_PROBE_TIMEOUT 2000
500
501static int __maybe_unused rt711_dev_resume(struct device *dev)
502{
503 struct sdw_slave *slave = dev_to_sdw_dev(dev);
504 struct rt711_priv *rt711 = dev_get_drvdata(dev);
505 unsigned long time;
506
507 if (!rt711->hw_init)
508 return 0;
509
510 if (!slave->unattach_request)
511 goto regmap_sync;
512
513 time = wait_for_completion_timeout(&slave->initialization_complete,
514 msecs_to_jiffies(RT711_PROBE_TIMEOUT));
515 if (!time) {
516 dev_err(&slave->dev, "Initialization not complete, timed out\n");
517 return -ETIMEDOUT;
518 }
519
520regmap_sync:
521 slave->unattach_request = 0;
522 regcache_cache_only(rt711->regmap, false);
523 regcache_sync_region(rt711->regmap, 0x3000, 0x8fff);
524 regcache_sync_region(rt711->regmap, 0x752009, 0x752091);
525
526 return 0;
527}
528
529static const struct dev_pm_ops rt711_pm = {
530 SET_SYSTEM_SLEEP_PM_OPS(rt711_dev_suspend, rt711_dev_resume)
531 SET_RUNTIME_PM_OPS(rt711_dev_suspend, rt711_dev_resume, NULL)
532};
533
534static struct sdw_driver rt711_sdw_driver = {
535 .driver = {
536 .name = "rt711",
537 .owner = THIS_MODULE,
538 .pm = &rt711_pm,
539 },
540 .probe = rt711_sdw_probe,
541 .remove = rt711_sdw_remove,
542 .ops = &rt711_slave_ops,
543 .id_table = rt711_id,
544};
545module_sdw_driver(rt711_sdw_driver);
546
547MODULE_DESCRIPTION("ASoC RT711 SDW driver");
548MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
549MODULE_LICENSE("GPL");
550
