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9#include <linux/module.h>
10#include <linux/moduleparam.h>
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/delay.h>
14#include <linux/pm_runtime.h>
15#include <linux/pm.h>
16#include <linux/soundwire/sdw.h>
17#include <linux/regmap.h>
18#include <linux/slab.h>
19#include <sound/core.h>
20#include <sound/pcm.h>
21#include <sound/pcm_params.h>
22#include <sound/soc.h>
23#include <sound/soc-dapm.h>
24#include <sound/initval.h>
25#include <sound/tlv.h>
26#include <sound/hda_verbs.h>
27#include <sound/jack.h>
28
29#include "rt711.h"
30
31static int rt711_index_write(struct regmap *regmap,
32 unsigned int nid, unsigned int reg, unsigned int value)
33{
34 int ret;
35 unsigned int addr = ((RT711_PRIV_INDEX_W_H | nid) << 8) | reg;
36
37 ret = regmap_write(regmap, addr, value);
38 if (ret < 0)
39 pr_err("Failed to set private value: %06x <= %04x ret=%d\n",
40 addr, value, ret);
41
42 return ret;
43}
44
45static int rt711_index_read(struct regmap *regmap,
46 unsigned int nid, unsigned int reg, unsigned int *value)
47{
48 int ret;
49 unsigned int addr = ((RT711_PRIV_INDEX_W_H | nid) << 8) | reg;
50
51 *value = 0;
52 ret = regmap_read(regmap, addr, value);
53 if (ret < 0)
54 pr_err("Failed to get private value: %06x => %04x ret=%d\n",
55 addr, *value, ret);
56
57 return ret;
58}
59
60static int rt711_index_update_bits(struct regmap *regmap, unsigned int nid,
61 unsigned int reg, unsigned int mask, unsigned int val)
62{
63 unsigned int tmp, orig;
64 int ret;
65
66 ret = rt711_index_read(regmap, nid, reg, &orig);
67 if (ret < 0)
68 return ret;
69
70 tmp = orig & ~mask;
71 tmp |= val & mask;
72
73 return rt711_index_write(regmap, nid, reg, tmp);
74}
75
76static void rt711_reset(struct regmap *regmap)
77{
78 regmap_write(regmap, RT711_FUNC_RESET, 0);
79 rt711_index_update_bits(regmap, RT711_VENDOR_REG,
80 RT711_PARA_VERB_CTL, RT711_HIDDEN_REG_SW_RESET,
81 RT711_HIDDEN_REG_SW_RESET);
82}
83
84static int rt711_calibration(struct rt711_priv *rt711)
85{
86 unsigned int val, loop = 0;
87 struct device *dev;
88 struct regmap *regmap = rt711->regmap;
89 int ret = 0;
90
91 mutex_lock(&rt711->calibrate_mutex);
92 regmap_write(rt711->regmap,
93 RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D0);
94
95 dev = regmap_get_device(regmap);
96
97
98 rt711_index_update_bits(regmap, RT711_VENDOR_REG, RT711_FSM_CTL,
99 0xf, 0x0);
100
101
102 rt711_index_update_bits(regmap, RT711_VENDOR_CALI,
103 RT711_DAC_DC_CALI_CTL1, RT711_DAC_DC_CALI_TRIGGER,
104 RT711_DAC_DC_CALI_TRIGGER);
105
106
107 rt711_index_read(regmap, RT711_VENDOR_CALI,
108 RT711_DAC_DC_CALI_CTL1, &val);
109
110 while (val & RT711_DAC_DC_CALI_TRIGGER) {
111 if (loop >= 500) {
112 pr_err("%s, calibration time-out!\n",
113 __func__);
114 ret = -ETIMEDOUT;
115 break;
116 }
117 loop++;
118
119 usleep_range(10000, 11000);
120 rt711_index_read(regmap, RT711_VENDOR_CALI,
121 RT711_DAC_DC_CALI_CTL1, &val);
122 }
123
124
125 rt711_index_update_bits(regmap, RT711_VENDOR_REG,
126 RT711_FSM_CTL, 0xf, RT711_DEPOP_CTL);
127
128 regmap_write(rt711->regmap,
129 RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
130 mutex_unlock(&rt711->calibrate_mutex);
131
132 dev_dbg(dev, "%s calibration complete, ret=%d\n", __func__, ret);
133 return ret;
134}
135
136static unsigned int rt711_button_detect(struct rt711_priv *rt711)
137{
138 unsigned int btn_type = 0, val80, val81;
139 int ret;
140
141 ret = rt711_index_read(rt711->regmap, RT711_VENDOR_REG,
142 RT711_IRQ_FLAG_TABLE1, &val80);
143 if (ret < 0)
144 goto read_error;
145 ret = rt711_index_read(rt711->regmap, RT711_VENDOR_REG,
146 RT711_IRQ_FLAG_TABLE2, &val81);
147 if (ret < 0)
148 goto read_error;
149
150 val80 &= 0x0381;
151 val81 &= 0xff00;
152
153 switch (val80) {
154 case 0x0200:
155 case 0x0100:
156 case 0x0080:
157 btn_type |= SND_JACK_BTN_0;
158 break;
159 case 0x0001:
160 btn_type |= SND_JACK_BTN_3;
161 break;
162 }
163 switch (val81) {
164 case 0x8000:
165 case 0x4000:
166 case 0x2000:
167 btn_type |= SND_JACK_BTN_1;
168 break;
169 case 0x1000:
170 case 0x0800:
171 case 0x0400:
172 btn_type |= SND_JACK_BTN_2;
173 break;
174 case 0x0200:
175 case 0x0100:
176 btn_type |= SND_JACK_BTN_3;
177 break;
178 }
179read_error:
180 return btn_type;
181}
182
183static int rt711_headset_detect(struct rt711_priv *rt711)
184{
185 unsigned int buf, loop = 0;
186 int ret;
187 unsigned int jack_status = 0, reg;
188
189 ret = rt711_index_read(rt711->regmap, RT711_VENDOR_REG,
190 RT711_COMBO_JACK_AUTO_CTL2, &buf);
191 if (ret < 0)
192 goto io_error;
193
194 while (loop < 500 &&
195 (buf & RT711_COMBOJACK_AUTO_DET_STATUS) == 0) {
196 loop++;
197
198 usleep_range(9000, 10000);
199 ret = rt711_index_read(rt711->regmap, RT711_VENDOR_REG,
200 RT711_COMBO_JACK_AUTO_CTL2, &buf);
201 if (ret < 0)
202 goto io_error;
203
204 reg = RT711_VERB_GET_PIN_SENSE | RT711_HP_OUT;
205 ret = regmap_read(rt711->regmap, reg, &jack_status);
206 if (ret < 0)
207 goto io_error;
208 if ((jack_status & (1 << 31)) == 0)
209 goto remove_error;
210 }
211
212 if (loop >= 500)
213 goto to_error;
214
215 if (buf & RT711_COMBOJACK_AUTO_DET_TRS)
216 rt711->jack_type = SND_JACK_HEADPHONE;
217 else if ((buf & RT711_COMBOJACK_AUTO_DET_CTIA) ||
218 (buf & RT711_COMBOJACK_AUTO_DET_OMTP))
219 rt711->jack_type = SND_JACK_HEADSET;
220
221 return 0;
222
223to_error:
224 ret = -ETIMEDOUT;
225 pr_err_ratelimited("Time-out error in %s\n", __func__);
226 return ret;
227io_error:
228 pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
229 return ret;
230remove_error:
231 pr_err_ratelimited("Jack removal in %s\n", __func__);
232 return -ENODEV;
233}
234
235static void rt711_jack_detect_handler(struct work_struct *work)
236{
237 struct rt711_priv *rt711 =
238 container_of(work, struct rt711_priv, jack_detect_work.work);
239 int btn_type = 0, ret;
240 unsigned int jack_status = 0, reg;
241
242 if (!rt711->hs_jack)
243 return;
244
245 if (!rt711->component->card->instantiated)
246 return;
247
248 reg = RT711_VERB_GET_PIN_SENSE | RT711_HP_OUT;
249 ret = regmap_read(rt711->regmap, reg, &jack_status);
250 if (ret < 0)
251 goto io_error;
252
253
254 if (jack_status & (1 << 31)) {
255
256 if (rt711->jack_type == 0) {
257 ret = rt711_headset_detect(rt711);
258 if (ret < 0)
259 return;
260 if (rt711->jack_type == SND_JACK_HEADSET)
261 btn_type = rt711_button_detect(rt711);
262 } else if (rt711->jack_type == SND_JACK_HEADSET) {
263
264 btn_type = rt711_button_detect(rt711);
265 }
266 } else {
267
268 rt711->jack_type = 0;
269 }
270
271 dev_dbg(&rt711->slave->dev,
272 "in %s, jack_type=0x%x\n", __func__, rt711->jack_type);
273 dev_dbg(&rt711->slave->dev,
274 "in %s, btn_type=0x%x\n", __func__, btn_type);
275
276 snd_soc_jack_report(rt711->hs_jack, rt711->jack_type | btn_type,
277 SND_JACK_HEADSET |
278 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
279 SND_JACK_BTN_2 | SND_JACK_BTN_3);
280
281 if (btn_type) {
282
283 snd_soc_jack_report(rt711->hs_jack, rt711->jack_type,
284 SND_JACK_HEADSET |
285 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
286 SND_JACK_BTN_2 | SND_JACK_BTN_3);
287
288 mod_delayed_work(system_power_efficient_wq,
289 &rt711->jack_btn_check_work, msecs_to_jiffies(200));
290 }
291
292 return;
293
294io_error:
295 pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
296}
297
298static void rt711_btn_check_handler(struct work_struct *work)
299{
300 struct rt711_priv *rt711 = container_of(work, struct rt711_priv,
301 jack_btn_check_work.work);
302 int btn_type = 0, ret;
303 unsigned int jack_status = 0, reg;
304
305 reg = RT711_VERB_GET_PIN_SENSE | RT711_HP_OUT;
306 ret = regmap_read(rt711->regmap, reg, &jack_status);
307 if (ret < 0)
308 goto io_error;
309
310
311 if (jack_status & (1 << 31)) {
312 if (rt711->jack_type == SND_JACK_HEADSET) {
313
314 btn_type = rt711_button_detect(rt711);
315 }
316 } else {
317 rt711->jack_type = 0;
318 }
319
320
321 ret = rt711_index_read(rt711->regmap, RT711_VENDOR_REG,
322 RT711_COMBO_JACK_AUTO_CTL2, ®);
323 if (ret < 0)
324 goto io_error;
325
326 if ((reg & 0xf0) == 0xf0)
327 btn_type = 0;
328
329 dev_dbg(&rt711->slave->dev,
330 "%s, btn_type=0x%x\n", __func__, btn_type);
331 snd_soc_jack_report(rt711->hs_jack, rt711->jack_type | btn_type,
332 SND_JACK_HEADSET |
333 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
334 SND_JACK_BTN_2 | SND_JACK_BTN_3);
335
336 if (btn_type) {
337
338 snd_soc_jack_report(rt711->hs_jack, rt711->jack_type,
339 SND_JACK_HEADSET |
340 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
341 SND_JACK_BTN_2 | SND_JACK_BTN_3);
342
343 mod_delayed_work(system_power_efficient_wq,
344 &rt711->jack_btn_check_work, msecs_to_jiffies(200));
345 }
346
347 return;
348
349io_error:
350 pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
351}
352
353static void rt711_jack_init(struct rt711_priv *rt711)
354{
355 struct snd_soc_dapm_context *dapm =
356 snd_soc_component_get_dapm(rt711->component);
357
358 mutex_lock(&rt711->calibrate_mutex);
359
360 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
361 regmap_write(rt711->regmap,
362 RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D0);
363
364 if (rt711->hs_jack) {
365
366 regmap_write(rt711->regmap,
367 RT711_SET_MIC2_UNSOLICITED_ENABLE, 0x82);
368 regmap_write(rt711->regmap,
369 RT711_SET_HP_UNSOLICITED_ENABLE, 0x81);
370 regmap_write(rt711->regmap,
371 RT711_SET_INLINE_UNSOLICITED_ENABLE, 0x83);
372 rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
373 0x10, 0x2420);
374 rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
375 0x19, 0x2e11);
376
377 switch (rt711->jd_src) {
378 case RT711_JD1:
379
380 break;
381 case RT711_JD2:
382 rt711_index_update_bits(rt711->regmap, RT711_VENDOR_REG,
383 RT711_JD_CTL2, RT711_JD2_2PORT_200K_DECODE_HP |
384 RT711_HP_JD_SEL_JD2,
385 RT711_JD2_2PORT_200K_DECODE_HP |
386 RT711_HP_JD_SEL_JD2);
387 rt711_index_update_bits(rt711->regmap, RT711_VENDOR_REG,
388 RT711_CC_DET1,
389 RT711_HP_JD_FINAL_RESULT_CTL_JD12,
390 RT711_HP_JD_FINAL_RESULT_CTL_JD12);
391 break;
392 default:
393 dev_warn(rt711->component->dev, "Wrong JD source\n");
394 break;
395 }
396
397 dev_dbg(&rt711->slave->dev, "in %s enable\n", __func__);
398
399 mod_delayed_work(system_power_efficient_wq,
400 &rt711->jack_detect_work, msecs_to_jiffies(250));
401 } else {
402 regmap_write(rt711->regmap,
403 RT711_SET_MIC2_UNSOLICITED_ENABLE, 0x00);
404 regmap_write(rt711->regmap,
405 RT711_SET_HP_UNSOLICITED_ENABLE, 0x00);
406 regmap_write(rt711->regmap,
407 RT711_SET_INLINE_UNSOLICITED_ENABLE, 0x00);
408
409 dev_dbg(&rt711->slave->dev, "in %s disable\n", __func__);
410 }
411
412
413 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
414 regmap_write(rt711->regmap,
415 RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
416 mutex_unlock(&rt711->calibrate_mutex);
417}
418
419static int rt711_set_jack_detect(struct snd_soc_component *component,
420 struct snd_soc_jack *hs_jack, void *data)
421{
422 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
423
424 rt711->hs_jack = hs_jack;
425
426 if (!rt711->hw_init) {
427 dev_dbg(&rt711->slave->dev,
428 "%s hw_init not ready yet\n", __func__);
429 return 0;
430 }
431
432 rt711_jack_init(rt711);
433
434 return 0;
435}
436
437static void rt711_get_gain(struct rt711_priv *rt711, unsigned int addr_h,
438 unsigned int addr_l, unsigned int val_h,
439 unsigned int *r_val, unsigned int *l_val)
440{
441
442 *r_val = (val_h << 8);
443 regmap_read(rt711->regmap, addr_l, r_val);
444
445
446 val_h |= 0x20;
447 *l_val = (val_h << 8);
448 regmap_read(rt711->regmap, addr_h, l_val);
449}
450
451
452static int rt711_set_amp_gain_put(struct snd_kcontrol *kcontrol,
453 struct snd_ctl_elem_value *ucontrol)
454{
455 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
456 struct snd_soc_dapm_context *dapm =
457 snd_soc_component_get_dapm(component);
458 struct soc_mixer_control *mc =
459 (struct soc_mixer_control *)kcontrol->private_value;
460 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
461 unsigned int addr_h, addr_l, val_h, val_ll, val_lr;
462 unsigned int read_ll, read_rl;
463 int i;
464
465
466 addr_h = mc->reg;
467 addr_l = mc->rreg;
468 if (mc->shift == RT711_DIR_OUT_SFT)
469 val_h = 0x80;
470 else
471 val_h = 0x0;
472
473 rt711_get_gain(rt711, addr_h, addr_l, val_h, &read_rl, &read_ll);
474
475
476 if (mc->invert) {
477
478 val_ll = (mc->max - ucontrol->value.integer.value[0])
479 << RT711_MUTE_SFT;
480
481 read_ll = read_ll & 0x7f;
482 val_ll |= read_ll;
483 } else {
484
485 val_ll = ((ucontrol->value.integer.value[0]) & 0x7f);
486 if (val_ll > mc->max)
487 val_ll = mc->max;
488
489 read_ll = read_ll & (1 << RT711_MUTE_SFT);
490 val_ll |= read_ll;
491 }
492
493 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
494 regmap_write(rt711->regmap,
495 RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D0);
496
497
498 if (mc->invert) {
499
500 val_lr = (mc->max - ucontrol->value.integer.value[1])
501 << RT711_MUTE_SFT;
502
503 read_rl = read_rl & 0x7f;
504 val_lr |= read_rl;
505 } else {
506
507 val_lr = ((ucontrol->value.integer.value[1]) & 0x7f);
508 if (val_lr > mc->max)
509 val_lr = mc->max;
510
511 read_rl = read_rl & (1 << RT711_MUTE_SFT);
512 val_lr |= read_rl;
513 }
514
515 for (i = 0; i < 3; i++) {
516
517 if (val_ll == val_lr) {
518
519 val_h = (1 << mc->shift) | (3 << 4);
520 regmap_write(rt711->regmap,
521 addr_h, (val_h << 8 | val_ll));
522 regmap_write(rt711->regmap,
523 addr_l, (val_h << 8 | val_ll));
524 } else {
525
526 val_h = (1 << mc->shift) | (1 << 5);
527 regmap_write(rt711->regmap,
528 addr_h, (val_h << 8 | val_ll));
529
530
531 val_h = (1 << mc->shift) | (1 << 4);
532 regmap_write(rt711->regmap,
533 addr_l, (val_h << 8 | val_lr));
534 }
535
536 if (mc->shift == RT711_DIR_OUT_SFT)
537 val_h = 0x80;
538 else
539 val_h = 0x0;
540
541 rt711_get_gain(rt711, addr_h, addr_l, val_h,
542 &read_rl, &read_ll);
543 if (read_rl == val_lr && read_ll == val_ll)
544 break;
545 }
546
547 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
548 regmap_write(rt711->regmap,
549 RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
550 return 0;
551}
552
553static int rt711_set_amp_gain_get(struct snd_kcontrol *kcontrol,
554 struct snd_ctl_elem_value *ucontrol)
555{
556 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
557 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
558 struct soc_mixer_control *mc =
559 (struct soc_mixer_control *)kcontrol->private_value;
560 unsigned int addr_h, addr_l, val_h;
561 unsigned int read_ll, read_rl;
562
563
564 addr_h = mc->reg;
565 addr_l = mc->rreg;
566 if (mc->shift == RT711_DIR_OUT_SFT)
567 val_h = 0x80;
568 else
569 val_h = 0x0;
570
571 rt711_get_gain(rt711, addr_h, addr_l, val_h, &read_rl, &read_ll);
572
573 if (mc->invert) {
574
575 read_ll = !((read_ll & 0x80) >> RT711_MUTE_SFT);
576 read_rl = !((read_rl & 0x80) >> RT711_MUTE_SFT);
577 } else {
578
579 read_ll = read_ll & 0x7f;
580 read_rl = read_rl & 0x7f;
581 }
582 ucontrol->value.integer.value[0] = read_ll;
583 ucontrol->value.integer.value[1] = read_rl;
584
585 return 0;
586}
587
588static const DECLARE_TLV_DB_SCALE(out_vol_tlv, -6525, 75, 0);
589static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -1725, 75, 0);
590static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 1000, 0);
591
592static const struct snd_kcontrol_new rt711_snd_controls[] = {
593 SOC_DOUBLE_R_EXT_TLV("DAC Surr Playback Volume",
594 RT711_SET_GAIN_DAC2_H, RT711_SET_GAIN_DAC2_L,
595 RT711_DIR_OUT_SFT, 0x57, 0,
596 rt711_set_amp_gain_get, rt711_set_amp_gain_put, out_vol_tlv),
597 SOC_DOUBLE_R_EXT("ADC 08 Capture Switch",
598 RT711_SET_GAIN_ADC2_H, RT711_SET_GAIN_ADC2_L,
599 RT711_DIR_IN_SFT, 1, 1,
600 rt711_set_amp_gain_get, rt711_set_amp_gain_put),
601 SOC_DOUBLE_R_EXT("ADC 09 Capture Switch",
602 RT711_SET_GAIN_ADC1_H, RT711_SET_GAIN_ADC1_L,
603 RT711_DIR_IN_SFT, 1, 1,
604 rt711_set_amp_gain_get, rt711_set_amp_gain_put),
605 SOC_DOUBLE_R_EXT_TLV("ADC 08 Capture Volume",
606 RT711_SET_GAIN_ADC2_H, RT711_SET_GAIN_ADC2_L,
607 RT711_DIR_IN_SFT, 0x3f, 0,
608 rt711_set_amp_gain_get, rt711_set_amp_gain_put, in_vol_tlv),
609 SOC_DOUBLE_R_EXT_TLV("ADC 09 Capture Volume",
610 RT711_SET_GAIN_ADC1_H, RT711_SET_GAIN_ADC1_L,
611 RT711_DIR_IN_SFT, 0x3f, 0,
612 rt711_set_amp_gain_get, rt711_set_amp_gain_put, in_vol_tlv),
613 SOC_DOUBLE_R_EXT_TLV("AMIC Volume",
614 RT711_SET_GAIN_AMIC_H, RT711_SET_GAIN_AMIC_L,
615 RT711_DIR_IN_SFT, 3, 0,
616 rt711_set_amp_gain_get, rt711_set_amp_gain_put, mic_vol_tlv),
617 SOC_DOUBLE_R_EXT_TLV("DMIC1 Volume",
618 RT711_SET_GAIN_DMIC1_H, RT711_SET_GAIN_DMIC1_L,
619 RT711_DIR_IN_SFT, 3, 0,
620 rt711_set_amp_gain_get, rt711_set_amp_gain_put, mic_vol_tlv),
621 SOC_DOUBLE_R_EXT_TLV("DMIC2 Volume",
622 RT711_SET_GAIN_DMIC2_H, RT711_SET_GAIN_DMIC2_L,
623 RT711_DIR_IN_SFT, 3, 0,
624 rt711_set_amp_gain_get, rt711_set_amp_gain_put, mic_vol_tlv),
625};
626
627static int rt711_mux_get(struct snd_kcontrol *kcontrol,
628 struct snd_ctl_elem_value *ucontrol)
629{
630 struct snd_soc_component *component =
631 snd_soc_dapm_kcontrol_component(kcontrol);
632 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
633 unsigned int reg, val = 0, nid;
634 int ret;
635
636 if (strstr(ucontrol->id.name, "ADC 22 Mux"))
637 nid = RT711_MIXER_IN1;
638 else if (strstr(ucontrol->id.name, "ADC 23 Mux"))
639 nid = RT711_MIXER_IN2;
640 else
641 return -EINVAL;
642
643
644 reg = RT711_VERB_SET_CONNECT_SEL | nid;
645 ret = regmap_read(rt711->regmap, reg, &val);
646 if (ret < 0) {
647 dev_err(component->dev, "%s: sdw read failed: %d\n",
648 __func__, ret);
649 return ret;
650 }
651
652 ucontrol->value.enumerated.item[0] = val;
653
654 return 0;
655}
656
657static int rt711_mux_put(struct snd_kcontrol *kcontrol,
658 struct snd_ctl_elem_value *ucontrol)
659{
660 struct snd_soc_component *component =
661 snd_soc_dapm_kcontrol_component(kcontrol);
662 struct snd_soc_dapm_context *dapm =
663 snd_soc_dapm_kcontrol_dapm(kcontrol);
664 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
665 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
666 unsigned int *item = ucontrol->value.enumerated.item;
667 unsigned int val, val2 = 0, change, reg, nid;
668 int ret;
669
670 if (item[0] >= e->items)
671 return -EINVAL;
672
673 if (strstr(ucontrol->id.name, "ADC 22 Mux"))
674 nid = RT711_MIXER_IN1;
675 else if (strstr(ucontrol->id.name, "ADC 23 Mux"))
676 nid = RT711_MIXER_IN2;
677 else
678 return -EINVAL;
679
680
681 val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
682
683 reg = RT711_VERB_SET_CONNECT_SEL | nid;
684 ret = regmap_read(rt711->regmap, reg, &val2);
685 if (ret < 0) {
686 dev_err(component->dev, "%s: sdw read failed: %d\n",
687 __func__, ret);
688 return ret;
689 }
690
691 if (val == val2)
692 change = 0;
693 else
694 change = 1;
695
696 if (change) {
697 reg = RT711_VERB_SET_CONNECT_SEL | nid;
698 regmap_write(rt711->regmap, reg, val);
699 }
700
701 snd_soc_dapm_mux_update_power(dapm, kcontrol,
702 item[0], e, NULL);
703
704 return change;
705}
706
707static const char * const adc_mux_text[] = {
708 "MIC2",
709 "LINE1",
710 "LINE2",
711 "DMIC",
712};
713
714static SOC_ENUM_SINGLE_DECL(
715 rt711_adc22_enum, SND_SOC_NOPM, 0, adc_mux_text);
716
717static SOC_ENUM_SINGLE_DECL(
718 rt711_adc23_enum, SND_SOC_NOPM, 0, adc_mux_text);
719
720static const struct snd_kcontrol_new rt711_adc22_mux =
721 SOC_DAPM_ENUM_EXT("ADC 22 Mux", rt711_adc22_enum,
722 rt711_mux_get, rt711_mux_put);
723
724static const struct snd_kcontrol_new rt711_adc23_mux =
725 SOC_DAPM_ENUM_EXT("ADC 23 Mux", rt711_adc23_enum,
726 rt711_mux_get, rt711_mux_put);
727
728static int rt711_dac_surround_event(struct snd_soc_dapm_widget *w,
729 struct snd_kcontrol *kcontrol, int event)
730{
731 struct snd_soc_component *component =
732 snd_soc_dapm_to_component(w->dapm);
733 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
734 unsigned int val_h = (1 << RT711_DIR_OUT_SFT) | (0x3 << 4);
735 unsigned int val_l;
736
737 switch (event) {
738 case SND_SOC_DAPM_POST_PMU:
739 regmap_write(rt711->regmap,
740 RT711_SET_STREAMID_DAC2, 0x10);
741
742 val_l = 0x00;
743 regmap_write(rt711->regmap,
744 RT711_SET_GAIN_HP_H, (val_h << 8 | val_l));
745 break;
746 case SND_SOC_DAPM_PRE_PMD:
747 val_l = (1 << RT711_MUTE_SFT);
748 regmap_write(rt711->regmap,
749 RT711_SET_GAIN_HP_H, (val_h << 8 | val_l));
750 usleep_range(50000, 55000);
751
752 regmap_write(rt711->regmap,
753 RT711_SET_STREAMID_DAC2, 0x00);
754 break;
755 }
756 return 0;
757}
758
759static int rt711_adc_09_event(struct snd_soc_dapm_widget *w,
760 struct snd_kcontrol *kcontrol, int event)
761{
762 struct snd_soc_component *component =
763 snd_soc_dapm_to_component(w->dapm);
764 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
765
766 switch (event) {
767 case SND_SOC_DAPM_POST_PMU:
768 regmap_write(rt711->regmap,
769 RT711_SET_STREAMID_ADC1, 0x10);
770 break;
771 case SND_SOC_DAPM_PRE_PMD:
772 regmap_write(rt711->regmap,
773 RT711_SET_STREAMID_ADC1, 0x00);
774 break;
775 }
776 return 0;
777}
778
779static int rt711_adc_08_event(struct snd_soc_dapm_widget *w,
780 struct snd_kcontrol *kcontrol, int event)
781{
782 struct snd_soc_component *component =
783 snd_soc_dapm_to_component(w->dapm);
784 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
785
786 switch (event) {
787 case SND_SOC_DAPM_POST_PMU:
788 regmap_write(rt711->regmap,
789 RT711_SET_STREAMID_ADC2, 0x10);
790 break;
791 case SND_SOC_DAPM_PRE_PMD:
792 regmap_write(rt711->regmap,
793 RT711_SET_STREAMID_ADC2, 0x00);
794 break;
795 }
796 return 0;
797}
798
799static const struct snd_soc_dapm_widget rt711_dapm_widgets[] = {
800 SND_SOC_DAPM_OUTPUT("HP"),
801 SND_SOC_DAPM_INPUT("MIC2"),
802 SND_SOC_DAPM_INPUT("DMIC1"),
803 SND_SOC_DAPM_INPUT("DMIC2"),
804 SND_SOC_DAPM_INPUT("LINE1"),
805 SND_SOC_DAPM_INPUT("LINE2"),
806
807 SND_SOC_DAPM_DAC_E("DAC Surround", NULL, SND_SOC_NOPM, 0, 0,
808 rt711_dac_surround_event,
809 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
810 SND_SOC_DAPM_ADC_E("ADC 09", NULL, SND_SOC_NOPM, 0, 0,
811 rt711_adc_09_event,
812 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
813 SND_SOC_DAPM_ADC_E("ADC 08", NULL, SND_SOC_NOPM, 0, 0,
814 rt711_adc_08_event,
815 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
816 SND_SOC_DAPM_MUX("ADC 22 Mux", SND_SOC_NOPM, 0, 0,
817 &rt711_adc22_mux),
818 SND_SOC_DAPM_MUX("ADC 23 Mux", SND_SOC_NOPM, 0, 0,
819 &rt711_adc23_mux),
820
821 SND_SOC_DAPM_AIF_IN("DP3RX", "DP3 Playback", 0, SND_SOC_NOPM, 0, 0),
822 SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0),
823 SND_SOC_DAPM_AIF_OUT("DP4TX", "DP4 Capture", 0, SND_SOC_NOPM, 0, 0),
824};
825
826static const struct snd_soc_dapm_route rt711_audio_map[] = {
827 {"DAC Surround", NULL, "DP3RX"},
828 {"DP2TX", NULL, "ADC 09"},
829 {"DP4TX", NULL, "ADC 08"},
830
831 {"ADC 09", NULL, "ADC 22 Mux"},
832 {"ADC 08", NULL, "ADC 23 Mux"},
833 {"ADC 22 Mux", "DMIC", "DMIC1"},
834 {"ADC 22 Mux", "LINE1", "LINE1"},
835 {"ADC 22 Mux", "LINE2", "LINE2"},
836 {"ADC 22 Mux", "MIC2", "MIC2"},
837 {"ADC 23 Mux", "DMIC", "DMIC2"},
838 {"ADC 23 Mux", "LINE1", "LINE1"},
839 {"ADC 23 Mux", "LINE2", "LINE2"},
840 {"ADC 23 Mux", "MIC2", "MIC2"},
841
842 {"HP", NULL, "DAC Surround"},
843};
844
845static int rt711_set_bias_level(struct snd_soc_component *component,
846 enum snd_soc_bias_level level)
847{
848 struct snd_soc_dapm_context *dapm =
849 snd_soc_component_get_dapm(component);
850 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
851
852 switch (level) {
853 case SND_SOC_BIAS_PREPARE:
854 if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
855 regmap_write(rt711->regmap,
856 RT711_SET_AUDIO_POWER_STATE,
857 AC_PWRST_D0);
858 }
859 break;
860
861 case SND_SOC_BIAS_STANDBY:
862 regmap_write(rt711->regmap,
863 RT711_SET_AUDIO_POWER_STATE,
864 AC_PWRST_D3);
865 break;
866
867 default:
868 break;
869 }
870
871 return 0;
872}
873
874static int rt711_parse_dt(struct rt711_priv *rt711, struct device *dev)
875{
876 device_property_read_u32(dev, "realtek,jd-src",
877 &rt711->jd_src);
878
879 return 0;
880}
881
882static int rt711_probe(struct snd_soc_component *component)
883{
884 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
885
886 rt711_parse_dt(rt711, &rt711->slave->dev);
887 rt711->component = component;
888
889 return 0;
890}
891
892static const struct snd_soc_component_driver soc_codec_dev_rt711 = {
893 .probe = rt711_probe,
894 .set_bias_level = rt711_set_bias_level,
895 .controls = rt711_snd_controls,
896 .num_controls = ARRAY_SIZE(rt711_snd_controls),
897 .dapm_widgets = rt711_dapm_widgets,
898 .num_dapm_widgets = ARRAY_SIZE(rt711_dapm_widgets),
899 .dapm_routes = rt711_audio_map,
900 .num_dapm_routes = ARRAY_SIZE(rt711_audio_map),
901 .set_jack = rt711_set_jack_detect,
902};
903
904static int rt711_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
905 int direction)
906{
907 struct sdw_stream_data *stream;
908
909 if (!sdw_stream)
910 return 0;
911
912 stream = kzalloc(sizeof(*stream), GFP_KERNEL);
913 if (!stream)
914 return -ENOMEM;
915
916 stream->sdw_stream = (struct sdw_stream_runtime *)sdw_stream;
917
918
919 if (direction == SNDRV_PCM_STREAM_PLAYBACK)
920 dai->playback_dma_data = stream;
921 else
922 dai->capture_dma_data = stream;
923
924 return 0;
925}
926
927static void rt711_shutdown(struct snd_pcm_substream *substream,
928 struct snd_soc_dai *dai)
929{
930 struct sdw_stream_data *stream;
931
932 stream = snd_soc_dai_get_dma_data(dai, substream);
933 snd_soc_dai_set_dma_data(dai, substream, NULL);
934 kfree(stream);
935}
936
937static int rt711_pcm_hw_params(struct snd_pcm_substream *substream,
938 struct snd_pcm_hw_params *params,
939 struct snd_soc_dai *dai)
940{
941 struct snd_soc_component *component = dai->component;
942 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
943 struct sdw_stream_config stream_config;
944 struct sdw_port_config port_config;
945 enum sdw_data_direction direction;
946 struct sdw_stream_data *stream;
947 int retval, port, num_channels;
948 unsigned int val = 0;
949
950 dev_dbg(dai->dev, "%s %s", __func__, dai->name);
951 stream = snd_soc_dai_get_dma_data(dai, substream);
952
953 if (!stream)
954 return -EINVAL;
955
956 if (!rt711->slave)
957 return -EINVAL;
958
959
960 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
961 direction = SDW_DATA_DIR_RX;
962 port = 3;
963 } else {
964 direction = SDW_DATA_DIR_TX;
965 if (dai->id == RT711_AIF1)
966 port = 4;
967 else if (dai->id == RT711_AIF2)
968 port = 2;
969 else
970 return -EINVAL;
971 }
972
973 stream_config.frame_rate = params_rate(params);
974 stream_config.ch_count = params_channels(params);
975 stream_config.bps = snd_pcm_format_width(params_format(params));
976 stream_config.direction = direction;
977
978 num_channels = params_channels(params);
979 port_config.ch_mask = (1 << (num_channels)) - 1;
980 port_config.num = port;
981
982 retval = sdw_stream_add_slave(rt711->slave, &stream_config,
983 &port_config, 1, stream->sdw_stream);
984 if (retval) {
985 dev_err(dai->dev, "Unable to configure port\n");
986 return retval;
987 }
988
989 if (params_channels(params) <= 16) {
990
991 val |= (params_channels(params) - 1);
992 } else {
993 dev_err(component->dev, "Unsupported channels %d\n",
994 params_channels(params));
995 return -EINVAL;
996 }
997
998 switch (params_width(params)) {
999
1000 case 8:
1001 break;
1002 case 16:
1003 val |= (0x1 << 4);
1004 break;
1005 case 20:
1006 val |= (0x2 << 4);
1007 break;
1008 case 24:
1009 val |= (0x3 << 4);
1010 break;
1011 case 32:
1012 val |= (0x4 << 4);
1013 break;
1014 default:
1015 return -EINVAL;
1016 }
1017
1018
1019 regmap_write(rt711->regmap, RT711_DAC_FORMAT_H, val);
1020 regmap_write(rt711->regmap, RT711_ADC1_FORMAT_H, val);
1021 regmap_write(rt711->regmap, RT711_ADC2_FORMAT_H, val);
1022
1023 return retval;
1024}
1025
1026static int rt711_pcm_hw_free(struct snd_pcm_substream *substream,
1027 struct snd_soc_dai *dai)
1028{
1029 struct snd_soc_component *component = dai->component;
1030 struct rt711_priv *rt711 = snd_soc_component_get_drvdata(component);
1031 struct sdw_stream_data *stream =
1032 snd_soc_dai_get_dma_data(dai, substream);
1033
1034 if (!rt711->slave)
1035 return -EINVAL;
1036
1037 sdw_stream_remove_slave(rt711->slave, stream->sdw_stream);
1038 return 0;
1039}
1040
1041#define RT711_STEREO_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
1042#define RT711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1043 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8)
1044
1045static struct snd_soc_dai_ops rt711_ops = {
1046 .hw_params = rt711_pcm_hw_params,
1047 .hw_free = rt711_pcm_hw_free,
1048 .set_sdw_stream = rt711_set_sdw_stream,
1049 .shutdown = rt711_shutdown,
1050};
1051
1052static struct snd_soc_dai_driver rt711_dai[] = {
1053 {
1054 .name = "rt711-aif1",
1055 .id = RT711_AIF1,
1056 .playback = {
1057 .stream_name = "DP3 Playback",
1058 .channels_min = 1,
1059 .channels_max = 2,
1060 .rates = RT711_STEREO_RATES,
1061 .formats = RT711_FORMATS,
1062 },
1063 .capture = {
1064 .stream_name = "DP4 Capture",
1065 .channels_min = 1,
1066 .channels_max = 2,
1067 .rates = RT711_STEREO_RATES,
1068 .formats = RT711_FORMATS,
1069 },
1070 .ops = &rt711_ops,
1071 },
1072 {
1073 .name = "rt711-aif2",
1074 .id = RT711_AIF2,
1075 .capture = {
1076 .stream_name = "DP2 Capture",
1077 .channels_min = 1,
1078 .channels_max = 2,
1079 .rates = RT711_STEREO_RATES,
1080 .formats = RT711_FORMATS,
1081 },
1082 .ops = &rt711_ops,
1083 }
1084};
1085
1086
1087#define RT711_CLK_FREQ_9600000HZ 9600000
1088#define RT711_CLK_FREQ_12000000HZ 12000000
1089#define RT711_CLK_FREQ_6000000HZ 6000000
1090#define RT711_CLK_FREQ_4800000HZ 4800000
1091#define RT711_CLK_FREQ_2400000HZ 2400000
1092#define RT711_CLK_FREQ_12288000HZ 12288000
1093
1094int rt711_clock_config(struct device *dev)
1095{
1096 struct rt711_priv *rt711 = dev_get_drvdata(dev);
1097 unsigned int clk_freq, value;
1098
1099 clk_freq = (rt711->params.curr_dr_freq >> 1);
1100
1101 switch (clk_freq) {
1102 case RT711_CLK_FREQ_12000000HZ:
1103 value = 0x0;
1104 break;
1105 case RT711_CLK_FREQ_6000000HZ:
1106 value = 0x1;
1107 break;
1108 case RT711_CLK_FREQ_9600000HZ:
1109 value = 0x2;
1110 break;
1111 case RT711_CLK_FREQ_4800000HZ:
1112 value = 0x3;
1113 break;
1114 case RT711_CLK_FREQ_2400000HZ:
1115 value = 0x4;
1116 break;
1117 case RT711_CLK_FREQ_12288000HZ:
1118 value = 0x5;
1119 break;
1120 default:
1121 return -EINVAL;
1122 }
1123
1124 regmap_write(rt711->regmap, 0xe0, value);
1125 regmap_write(rt711->regmap, 0xf0, value);
1126
1127 dev_dbg(dev, "%s complete, clk_freq=%d\n", __func__, clk_freq);
1128
1129 return 0;
1130}
1131
1132static void rt711_calibration_work(struct work_struct *work)
1133{
1134 struct rt711_priv *rt711 =
1135 container_of(work, struct rt711_priv, calibration_work);
1136
1137 rt711_calibration(rt711);
1138}
1139
1140int rt711_init(struct device *dev, struct regmap *sdw_regmap,
1141 struct regmap *regmap, struct sdw_slave *slave)
1142{
1143 struct rt711_priv *rt711;
1144 int ret;
1145
1146 rt711 = devm_kzalloc(dev, sizeof(*rt711), GFP_KERNEL);
1147 if (!rt711)
1148 return -ENOMEM;
1149
1150 dev_set_drvdata(dev, rt711);
1151 rt711->slave = slave;
1152 rt711->sdw_regmap = sdw_regmap;
1153 rt711->regmap = regmap;
1154
1155
1156
1157
1158
1159 rt711->hw_init = false;
1160 rt711->first_hw_init = false;
1161
1162
1163 rt711->jd_src = RT711_JD2;
1164
1165 ret = devm_snd_soc_register_component(dev,
1166 &soc_codec_dev_rt711,
1167 rt711_dai,
1168 ARRAY_SIZE(rt711_dai));
1169
1170 dev_dbg(&slave->dev, "%s\n", __func__);
1171
1172 return ret;
1173}
1174
1175int rt711_io_init(struct device *dev, struct sdw_slave *slave)
1176{
1177 struct rt711_priv *rt711 = dev_get_drvdata(dev);
1178
1179 if (rt711->hw_init)
1180 return 0;
1181
1182 if (rt711->first_hw_init) {
1183 regcache_cache_only(rt711->regmap, false);
1184 regcache_cache_bypass(rt711->regmap, true);
1185 }
1186
1187
1188
1189
1190 if (!rt711->first_hw_init) {
1191
1192 pm_runtime_set_autosuspend_delay(&slave->dev, 3000);
1193 pm_runtime_use_autosuspend(&slave->dev);
1194
1195
1196 pm_runtime_set_active(&slave->dev);
1197
1198
1199 pm_runtime_mark_last_busy(&slave->dev);
1200
1201 pm_runtime_enable(&slave->dev);
1202 }
1203
1204 pm_runtime_get_noresume(&slave->dev);
1205
1206 rt711_reset(rt711->regmap);
1207
1208
1209 regmap_write(rt711->regmap, RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D0);
1210
1211
1212 regmap_write(rt711->regmap, RT711_SET_PIN_MIC2, 0x25);
1213 regmap_write(rt711->regmap, RT711_SET_PIN_HP, 0xc0);
1214 regmap_write(rt711->regmap, RT711_SET_PIN_DMIC1, 0x20);
1215 regmap_write(rt711->regmap, RT711_SET_PIN_DMIC2, 0x20);
1216 regmap_write(rt711->regmap, RT711_SET_PIN_LINE1, 0x20);
1217 regmap_write(rt711->regmap, RT711_SET_PIN_LINE2, 0x20);
1218
1219
1220 regmap_write(rt711->regmap, RT711_SET_GAIN_HP_H, 0xa080);
1221 regmap_write(rt711->regmap, RT711_SET_GAIN_HP_H, 0x9080);
1222 regmap_write(rt711->regmap, RT711_SET_GAIN_ADC2_H, 0x6080);
1223 regmap_write(rt711->regmap, RT711_SET_GAIN_ADC2_H, 0x5080);
1224 regmap_write(rt711->regmap, RT711_SET_GAIN_ADC1_H, 0x6080);
1225 regmap_write(rt711->regmap, RT711_SET_GAIN_ADC1_H, 0x5080);
1226
1227
1228 regmap_write(rt711->regmap, 0x4f12, 0x91);
1229 regmap_write(rt711->regmap, 0x4e12, 0xd6);
1230 regmap_write(rt711->regmap, 0x4d12, 0x11);
1231 regmap_write(rt711->regmap, 0x4c12, 0x20);
1232 regmap_write(rt711->regmap, 0x4f13, 0x91);
1233 regmap_write(rt711->regmap, 0x4e13, 0xd6);
1234 regmap_write(rt711->regmap, 0x4d13, 0x11);
1235 regmap_write(rt711->regmap, 0x4c13, 0x21);
1236 regmap_write(rt711->regmap, 0x4c21, 0xf0);
1237 regmap_write(rt711->regmap, 0x4d21, 0x11);
1238 regmap_write(rt711->regmap, 0x4e21, 0x11);
1239 regmap_write(rt711->regmap, 0x4f21, 0x01);
1240
1241
1242 rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
1243 RT711_TX_RX_MUX_CTL, 0x0154);
1244
1245
1246 rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
1247 RT711_DIGITAL_MISC_CTRL4, 0x201b);
1248 rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
1249 RT711_COMBO_JACK_AUTO_CTL1, 0x5089);
1250 rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
1251 RT711_VREFOUT_CTL, 0x5064);
1252 rt711_index_write(rt711->regmap, RT711_VENDOR_REG,
1253 RT711_INLINE_CMD_CTL, 0xd249);
1254
1255
1256 regmap_write(rt711->regmap, RT711_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
1257
1258 if (rt711->first_hw_init)
1259 rt711_calibration(rt711);
1260 else {
1261 INIT_DELAYED_WORK(&rt711->jack_detect_work,
1262 rt711_jack_detect_handler);
1263 INIT_DELAYED_WORK(&rt711->jack_btn_check_work,
1264 rt711_btn_check_handler);
1265 mutex_init(&rt711->calibrate_mutex);
1266 INIT_WORK(&rt711->calibration_work, rt711_calibration_work);
1267 schedule_work(&rt711->calibration_work);
1268 }
1269
1270
1271
1272
1273
1274 if (rt711->hs_jack)
1275 rt711_jack_init(rt711);
1276
1277 if (rt711->first_hw_init) {
1278 regcache_cache_bypass(rt711->regmap, false);
1279 regcache_mark_dirty(rt711->regmap);
1280 } else
1281 rt711->first_hw_init = true;
1282
1283
1284 rt711->hw_init = true;
1285
1286 pm_runtime_mark_last_busy(&slave->dev);
1287 pm_runtime_put_autosuspend(&slave->dev);
1288
1289 dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
1290 return 0;
1291}
1292
1293MODULE_DESCRIPTION("ASoC RT711 SDW driver");
1294MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
1295MODULE_LICENSE("GPL");
1296
