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1// SPDX-License-Identifier: GPL-2.0
2//
3// Driver for the Texas Instruments TAS2562 CODEC
4// Copyright (C) 2019 Texas Instruments Inc.
5
6
7#include <linux/module.h>
8#include <linux/errno.h>
9#include <linux/device.h>
10#include <linux/i2c.h>
11#include <linux/regmap.h>
12#include <linux/slab.h>
13#include <linux/gpio/consumer.h>
14#include <linux/regulator/consumer.h>
15#include <linux/delay.h>
16
17#include <sound/pcm.h>
18#include <sound/pcm_params.h>
19#include <sound/soc.h>
20#include <sound/soc-dapm.h>
21#include <sound/tlv.h>
22
23#include "tas2562.h"
24
25#define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
26 SNDRV_PCM_FORMAT_S32_LE)
27
28/* DVC equation involves floating point math
29 * round(10^(volume in dB/20)*2^30)
30 * so create a lookup table for 2dB step
31 */
32static const unsigned int float_vol_db_lookup[] = {
330x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151,
340x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b,
350x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a,
360x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f,
370x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7,
380x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d,
390x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a,
400x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27,
410x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68,
420x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362,
430x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000
44};
45
46struct tas2562_data {
47 struct snd_soc_component *component;
48 struct gpio_desc *sdz_gpio;
49 struct regmap *regmap;
50 struct device *dev;
51 struct i2c_client *client;
52 int v_sense_slot;
53 int i_sense_slot;
54 int volume_lvl;
55 int model_id;
56 bool dac_powered;
57 bool unmuted;
58};
59
60enum tas256x_model {
61 TAS2562,
62 TAS2564,
63 TAS2110,
64};
65
66static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
67{
68 int samp_rate;
69 int ramp_rate;
70
71 switch (samplerate) {
72 case 7350:
73 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
74 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
75 break;
76 case 8000:
77 ramp_rate = 0;
78 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
79 break;
80 case 14700:
81 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
82 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
83 break;
84 case 16000:
85 ramp_rate = 0;
86 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
87 break;
88 case 22050:
89 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
90 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
91 break;
92 case 24000:
93 ramp_rate = 0;
94 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
95 break;
96 case 29400:
97 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
98 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
99 break;
100 case 32000:
101 ramp_rate = 0;
102 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
103 break;
104 case 44100:
105 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
106 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
107 break;
108 case 48000:
109 ramp_rate = 0;
110 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
111 break;
112 case 88200:
113 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
114 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
115 break;
116 case 96000:
117 ramp_rate = 0;
118 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
119 break;
120 case 176400:
121 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
122 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
123 break;
124 case 192000:
125 ramp_rate = 0;
126 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
127 break;
128 default:
129 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
130 __func__, samplerate);
131 return -EINVAL;
132 }
133
134 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
135 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
136 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
137 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
138
139 return 0;
140}
141
142static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
143 unsigned int tx_mask, unsigned int rx_mask,
144 int slots, int slot_width)
145{
146 struct snd_soc_component *component = dai->component;
147 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
148 int left_slot, right_slot;
149 int slots_cfg;
150 int ret;
151
152 if (!tx_mask) {
153 dev_err(component->dev, "tx masks must not be 0\n");
154 return -EINVAL;
155 }
156
157 if (slots == 1) {
158 if (tx_mask != 1)
159 return -EINVAL;
160
161 left_slot = 0;
162 right_slot = 0;
163 } else {
164 left_slot = __ffs(tx_mask);
165 tx_mask &= ~(1 << left_slot);
166 if (tx_mask == 0) {
167 right_slot = left_slot;
168 } else {
169 right_slot = __ffs(tx_mask);
170 }
171 }
172
173 slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;
174
175 ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);
176 if (ret < 0)
177 return ret;
178
179 switch (slot_width) {
180 case 16:
181 ret = snd_soc_component_update_bits(component,
182 TAS2562_TDM_CFG2,
183 TAS2562_TDM_CFG2_RXLEN_MASK,
184 TAS2562_TDM_CFG2_RXLEN_16B);
185 break;
186 case 24:
187 ret = snd_soc_component_update_bits(component,
188 TAS2562_TDM_CFG2,
189 TAS2562_TDM_CFG2_RXLEN_MASK,
190 TAS2562_TDM_CFG2_RXLEN_24B);
191 break;
192 case 32:
193 ret = snd_soc_component_update_bits(component,
194 TAS2562_TDM_CFG2,
195 TAS2562_TDM_CFG2_RXLEN_MASK,
196 TAS2562_TDM_CFG2_RXLEN_32B);
197 break;
198
199 case 0:
200 /* Do not change slot width */
201 break;
202 default:
203 dev_err(tas2562->dev, "slot width not supported");
204 ret = -EINVAL;
205 }
206
207 if (ret < 0)
208 return ret;
209
210 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
211 TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
212 tas2562->v_sense_slot);
213 if (ret < 0)
214 return ret;
215
216 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
217 TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
218 tas2562->i_sense_slot);
219 if (ret < 0)
220 return ret;
221
222 return 0;
223}
224
225static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
226{
227 int ret;
228 int val;
229 int sense_en;
230
231 switch (bitwidth) {
232 case SNDRV_PCM_FORMAT_S16_LE:
233 snd_soc_component_update_bits(tas2562->component,
234 TAS2562_TDM_CFG2,
235 TAS2562_TDM_CFG2_RXWLEN_MASK,
236 TAS2562_TDM_CFG2_RXWLEN_16B);
237 break;
238 case SNDRV_PCM_FORMAT_S24_LE:
239 snd_soc_component_update_bits(tas2562->component,
240 TAS2562_TDM_CFG2,
241 TAS2562_TDM_CFG2_RXWLEN_MASK,
242 TAS2562_TDM_CFG2_RXWLEN_24B);
243 break;
244 case SNDRV_PCM_FORMAT_S32_LE:
245 snd_soc_component_update_bits(tas2562->component,
246 TAS2562_TDM_CFG2,
247 TAS2562_TDM_CFG2_RXWLEN_MASK,
248 TAS2562_TDM_CFG2_RXWLEN_32B);
249 break;
250
251 default:
252 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
253 return -EINVAL;
254 }
255
256 val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
257 if (val < 0)
258 return val;
259
260 if (val & (1 << TAS2562_VSENSE_POWER_EN))
261 sense_en = 0;
262 else
263 sense_en = TAS2562_TDM_CFG5_VSNS_EN;
264
265 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
266 TAS2562_TDM_CFG5_VSNS_EN, sense_en);
267 if (ret < 0)
268 return ret;
269
270 if (val & (1 << TAS2562_ISENSE_POWER_EN))
271 sense_en = 0;
272 else
273 sense_en = TAS2562_TDM_CFG6_ISNS_EN;
274
275 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
276 TAS2562_TDM_CFG6_ISNS_EN, sense_en);
277 if (ret < 0)
278 return ret;
279
280 return 0;
281}
282
283static int tas2562_hw_params(struct snd_pcm_substream *substream,
284 struct snd_pcm_hw_params *params,
285 struct snd_soc_dai *dai)
286{
287 struct snd_soc_component *component = dai->component;
288 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
289 int ret;
290
291 ret = tas2562_set_bitwidth(tas2562, params_format(params));
292 if (ret) {
293 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
294 return ret;
295 }
296
297 ret = tas2562_set_samplerate(tas2562, params_rate(params));
298 if (ret)
299 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);
300
301 return ret;
302}
303
304static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
305{
306 struct snd_soc_component *component = dai->component;
307 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
308 u8 asi_cfg_1 = 0;
309 u8 tdm_rx_start_slot = 0;
310 int ret;
311
312 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
313 case SND_SOC_DAIFMT_NB_NF:
314 asi_cfg_1 = 0;
315 break;
316 case SND_SOC_DAIFMT_IB_NF:
317 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
318 break;
319 default:
320 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
321 return -EINVAL;
322 }
323
324 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
325 TAS2562_TDM_CFG1_RX_EDGE_MASK,
326 asi_cfg_1);
327 if (ret < 0) {
328 dev_err(tas2562->dev, "Failed to set RX edge\n");
329 return ret;
330 }
331 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
332 case SND_SOC_DAIFMT_LEFT_J:
333 case SND_SOC_DAIFMT_DSP_B:
334 tdm_rx_start_slot = 0;
335 break;
336 case SND_SOC_DAIFMT_I2S:
337 case SND_SOC_DAIFMT_DSP_A:
338 tdm_rx_start_slot = 1;
339 break;
340 default:
341 dev_err(tas2562->dev,
342 "DAI Format is not found, fmt=0x%x\n", fmt);
343 return -EINVAL;
344 }
345
346 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
347 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1));
348 if (ret < 0)
349 return ret;
350
351 return 0;
352}
353
354static int tas2562_update_pwr_ctrl(struct tas2562_data *tas2562)
355{
356 struct snd_soc_component *component = tas2562->component;
357 unsigned int val;
358 int ret;
359
360 if (tas2562->dac_powered)
361 val = tas2562->unmuted ?
362 TAS2562_ACTIVE : TAS2562_MUTE;
363 else
364 val = TAS2562_SHUTDOWN;
365
366 ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
367 TAS2562_MODE_MASK, val);
368 if (ret < 0)
369 return ret;
370
371 return 0;
372}
373
374static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)
375{
376 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(dai->component);
377
378 tas2562->unmuted = !mute;
379 return tas2562_update_pwr_ctrl(tas2562);
380}
381
382static int tas2562_codec_probe(struct snd_soc_component *component)
383{
384 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
385
386 tas2562->component = component;
387
388 if (tas2562->sdz_gpio)
389 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
390
391 return 0;
392}
393
394#ifdef CONFIG_PM
395static int tas2562_suspend(struct snd_soc_component *component)
396{
397 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
398
399 regcache_cache_only(tas2562->regmap, true);
400 regcache_mark_dirty(tas2562->regmap);
401
402 if (tas2562->sdz_gpio)
403 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
404
405 return 0;
406}
407
408static int tas2562_resume(struct snd_soc_component *component)
409{
410 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
411
412 if (tas2562->sdz_gpio)
413 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
414
415 regcache_cache_only(tas2562->regmap, false);
416
417 return regcache_sync(tas2562->regmap);
418}
419#else
420#define tas2562_suspend NULL
421#define tas2562_resume NULL
422#endif
423
424static const char * const tas2562_ASI1_src[] = {
425 "I2C offset", "Left", "Right", "LeftRightDiv2",
426};
427
428static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
429 tas2562_ASI1_src);
430
431static const struct snd_kcontrol_new tas2562_asi1_mux =
432 SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
433
434static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
435 struct snd_kcontrol *kcontrol, int event)
436{
437 struct snd_soc_component *component =
438 snd_soc_dapm_to_component(w->dapm);
439 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
440 int ret = 0;
441
442 switch (event) {
443 case SND_SOC_DAPM_POST_PMU:
444 tas2562->dac_powered = true;
445 ret = tas2562_update_pwr_ctrl(tas2562);
446 break;
447 case SND_SOC_DAPM_PRE_PMD:
448 tas2562->dac_powered = false;
449 ret = tas2562_update_pwr_ctrl(tas2562);
450 break;
451 default:
452 dev_err(tas2562->dev, "Not supported evevt\n");
453 return -EINVAL;
454 }
455
456 return ret;
457}
458
459static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
460 struct snd_ctl_elem_value *ucontrol)
461{
462 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
463 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
464
465 ucontrol->value.integer.value[0] = tas2562->volume_lvl;
466 return 0;
467}
468
469static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
470 struct snd_ctl_elem_value *ucontrol)
471{
472 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
473 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
474 int ret;
475 u32 reg_val;
476
477 reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
478 ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
479 (reg_val & 0xff));
480 if (ret)
481 return ret;
482 ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
483 ((reg_val >> 8) & 0xff));
484 if (ret)
485 return ret;
486 ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
487 ((reg_val >> 16) & 0xff));
488 if (ret)
489 return ret;
490 ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
491 ((reg_val >> 24) & 0xff));
492 if (ret)
493 return ret;
494
495 tas2562->volume_lvl = ucontrol->value.integer.value[0];
496
497 return 0;
498}
499
500/* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
501static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
502
503static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
504
505static const struct snd_kcontrol_new isense_switch =
506 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
507 1, 1);
508
509static const struct snd_kcontrol_new vsense_switch =
510 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
511 1, 1);
512
513static const struct snd_kcontrol_new tas2562_snd_controls[] = {
514 SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0,
515 tas2562_dac_tlv),
516 {
517 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
518 .name = "Digital Volume Control",
519 .index = 0,
520 .tlv.p = dvc_tlv,
521 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
522 .info = snd_soc_info_volsw,
523 .get = tas2562_volume_control_get,
524 .put = tas2562_volume_control_put,
525 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),
526 },
527};
528
529static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = {
530 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
531 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
532 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
533 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
534 SND_SOC_DAPM_OUTPUT("OUT"),
535};
536
537static const struct snd_soc_dapm_route tas2110_audio_map[] = {
538 {"ASI1 Sel", "I2C offset", "ASI1"},
539 {"ASI1 Sel", "Left", "ASI1"},
540 {"ASI1 Sel", "Right", "ASI1"},
541 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
542 { "DAC", NULL, "ASI1 Sel" },
543 { "OUT", NULL, "DAC" },
544};
545
546static const struct snd_soc_component_driver soc_component_dev_tas2110 = {
547 .probe = tas2562_codec_probe,
548 .suspend = tas2562_suspend,
549 .resume = tas2562_resume,
550 .controls = tas2562_snd_controls,
551 .num_controls = ARRAY_SIZE(tas2562_snd_controls),
552 .dapm_widgets = tas2110_dapm_widgets,
553 .num_dapm_widgets = ARRAY_SIZE(tas2110_dapm_widgets),
554 .dapm_routes = tas2110_audio_map,
555 .num_dapm_routes = ARRAY_SIZE(tas2110_audio_map),
556 .idle_bias_on = 1,
557 .use_pmdown_time = 1,
558 .endianness = 1,
559};
560
561static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
562 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
563 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
564 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
565 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
566 SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
567 SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
568 SND_SOC_DAPM_SIGGEN("VMON"),
569 SND_SOC_DAPM_SIGGEN("IMON"),
570 SND_SOC_DAPM_OUTPUT("OUT"),
571};
572
573static const struct snd_soc_dapm_route tas2562_audio_map[] = {
574 {"ASI1 Sel", "I2C offset", "ASI1"},
575 {"ASI1 Sel", "Left", "ASI1"},
576 {"ASI1 Sel", "Right", "ASI1"},
577 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
578 { "DAC", NULL, "ASI1 Sel" },
579 { "OUT", NULL, "DAC" },
580 {"ISENSE", "Switch", "IMON"},
581 {"VSENSE", "Switch", "VMON"},
582};
583
584static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
585 .probe = tas2562_codec_probe,
586 .suspend = tas2562_suspend,
587 .resume = tas2562_resume,
588 .controls = tas2562_snd_controls,
589 .num_controls = ARRAY_SIZE(tas2562_snd_controls),
590 .dapm_widgets = tas2562_dapm_widgets,
591 .num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets),
592 .dapm_routes = tas2562_audio_map,
593 .num_dapm_routes = ARRAY_SIZE(tas2562_audio_map),
594 .idle_bias_on = 1,
595 .use_pmdown_time = 1,
596 .endianness = 1,
597};
598
599static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
600 .hw_params = tas2562_hw_params,
601 .set_fmt = tas2562_set_dai_fmt,
602 .set_tdm_slot = tas2562_set_dai_tdm_slot,
603 .mute_stream = tas2562_mute,
604 .no_capture_mute = 1,
605};
606
607static struct snd_soc_dai_driver tas2562_dai[] = {
608 {
609 .name = "tas2562-amplifier",
610 .id = 0,
611 .playback = {
612 .stream_name = "ASI1 Playback",
613 .channels_min = 2,
614 .channels_max = 2,
615 .rates = SNDRV_PCM_RATE_8000_192000,
616 .formats = TAS2562_FORMATS,
617 },
618 .capture = {
619 .stream_name = "ASI1 Capture",
620 .channels_min = 0,
621 .channels_max = 2,
622 .rates = SNDRV_PCM_RATE_8000_192000,
623 .formats = TAS2562_FORMATS,
624 },
625 .ops = &tas2562_speaker_dai_ops,
626 },
627};
628
629static const struct regmap_range_cfg tas2562_ranges[] = {
630 {
631 .range_min = 0,
632 .range_max = 5 * 128,
633 .selector_reg = TAS2562_PAGE_CTRL,
634 .selector_mask = 0xff,
635 .selector_shift = 0,
636 .window_start = 0,
637 .window_len = 128,
638 },
639};
640
641static const struct reg_default tas2562_reg_defaults[] = {
642 { TAS2562_PAGE_CTRL, 0x00 },
643 { TAS2562_SW_RESET, 0x00 },
644 { TAS2562_PWR_CTRL, 0x0e },
645 { TAS2562_PB_CFG1, 0x20 },
646 { TAS2562_TDM_CFG0, 0x09 },
647 { TAS2562_TDM_CFG1, 0x02 },
648 { TAS2562_DVC_CFG1, 0x40 },
649 { TAS2562_DVC_CFG2, 0x40 },
650 { TAS2562_DVC_CFG3, 0x00 },
651 { TAS2562_DVC_CFG4, 0x00 },
652};
653
654static const struct regmap_config tas2562_regmap_config = {
655 .reg_bits = 8,
656 .val_bits = 8,
657
658 .max_register = 5 * 128,
659 .cache_type = REGCACHE_RBTREE,
660 .reg_defaults = tas2562_reg_defaults,
661 .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
662 .ranges = tas2562_ranges,
663 .num_ranges = ARRAY_SIZE(tas2562_ranges),
664};
665
666static int tas2562_parse_dt(struct tas2562_data *tas2562)
667{
668 struct device *dev = tas2562->dev;
669 int ret = 0;
670
671 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
672 if (IS_ERR(tas2562->sdz_gpio)) {
673 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
674 return -EPROBE_DEFER;
675
676 tas2562->sdz_gpio = NULL;
677 }
678
679 /*
680 * The shut-down property is deprecated but needs to be checked for
681 * backwards compatibility.
682 */
683 if (tas2562->sdz_gpio == NULL) {
684 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down",
685 GPIOD_OUT_HIGH);
686 if (IS_ERR(tas2562->sdz_gpio))
687 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
688 return -EPROBE_DEFER;
689
690 tas2562->sdz_gpio = NULL;
691 }
692
693 if (tas2562->model_id == TAS2110)
694 return ret;
695
696 ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
697 &tas2562->i_sense_slot);
698 if (ret) {
699 dev_err(dev, "Property %s is missing setting default slot\n",
700 "ti,imon-slot-no");
701 tas2562->i_sense_slot = 0;
702 }
703
704
705 ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
706 &tas2562->v_sense_slot);
707 if (ret) {
708 dev_info(dev, "Property %s is missing setting default slot\n",
709 "ti,vmon-slot-no");
710 tas2562->v_sense_slot = 2;
711 }
712
713 if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
714 dev_err(dev, "Vsense slot must be greater than Isense slot\n");
715 return -EINVAL;
716 }
717
718 return ret;
719}
720
721static const struct i2c_device_id tas2562_id[] = {
722 { "tas2562", TAS2562 },
723 { "tas2564", TAS2564 },
724 { "tas2110", TAS2110 },
725 { }
726};
727MODULE_DEVICE_TABLE(i2c, tas2562_id);
728
729static int tas2562_probe(struct i2c_client *client)
730{
731 struct device *dev = &client->dev;
732 struct tas2562_data *data;
733 int ret;
734 const struct i2c_device_id *id;
735
736 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
737 if (!data)
738 return -ENOMEM;
739
740 id = i2c_match_id(tas2562_id, client);
741 data->client = client;
742 data->dev = &client->dev;
743 data->model_id = id->driver_data;
744
745 tas2562_parse_dt(data);
746
747 data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
748 if (IS_ERR(data->regmap)) {
749 ret = PTR_ERR(data->regmap);
750 dev_err(dev, "failed to allocate register map: %d\n", ret);
751 return ret;
752 }
753
754 dev_set_drvdata(&client->dev, data);
755
756 if (data->model_id == TAS2110)
757 return devm_snd_soc_register_component(dev,
758 &soc_component_dev_tas2110,
759 tas2562_dai,
760 ARRAY_SIZE(tas2562_dai));
761
762 return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
763 tas2562_dai,
764 ARRAY_SIZE(tas2562_dai));
765
766}
767
768#ifdef CONFIG_OF
769static const struct of_device_id tas2562_of_match[] = {
770 { .compatible = "ti,tas2562", },
771 { .compatible = "ti,tas2564", },
772 { .compatible = "ti,tas2110", },
773 { },
774};
775MODULE_DEVICE_TABLE(of, tas2562_of_match);
776#endif
777
778static struct i2c_driver tas2562_i2c_driver = {
779 .driver = {
780 .name = "tas2562",
781 .of_match_table = of_match_ptr(tas2562_of_match),
782 },
783 .probe = tas2562_probe,
784 .id_table = tas2562_id,
785};
786
787module_i2c_driver(tas2562_i2c_driver);
788
789MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
790MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
791MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0
2//
3// Driver for the Texas Instruments TAS2562 CODEC
4// Copyright (C) 2019 Texas Instruments Inc.
5
6
7#include <linux/module.h>
8#include <linux/errno.h>
9#include <linux/device.h>
10#include <linux/i2c.h>
11#include <linux/pm_runtime.h>
12#include <linux/regmap.h>
13#include <linux/slab.h>
14#include <linux/gpio/consumer.h>
15#include <linux/regulator/consumer.h>
16#include <linux/delay.h>
17
18#include <sound/pcm.h>
19#include <sound/pcm_params.h>
20#include <sound/soc.h>
21#include <sound/soc-dapm.h>
22#include <sound/tlv.h>
23
24#include "tas2562.h"
25
26#define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
27 SNDRV_PCM_FORMAT_S32_LE)
28
29/* DVC equation involves floating point math
30 * round(10^(volume in dB/20)*2^30)
31 * so create a lookup table for 2dB step
32 */
33static const unsigned int float_vol_db_lookup[] = {
340x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151,
350x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b,
360x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a,
370x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f,
380x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7,
390x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d,
400x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a,
410x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27,
420x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68,
430x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362,
440x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000
45};
46
47struct tas2562_data {
48 struct snd_soc_component *component;
49 struct gpio_desc *sdz_gpio;
50 struct regmap *regmap;
51 struct device *dev;
52 struct i2c_client *client;
53 int v_sense_slot;
54 int i_sense_slot;
55 int volume_lvl;
56 int model_id;
57};
58
59enum tas256x_model {
60 TAS2562,
61 TAS2563,
62 TAS2564,
63 TAS2110,
64};
65
66static int tas2562_set_bias_level(struct snd_soc_component *component,
67 enum snd_soc_bias_level level)
68{
69 struct tas2562_data *tas2562 =
70 snd_soc_component_get_drvdata(component);
71
72 switch (level) {
73 case SND_SOC_BIAS_ON:
74 snd_soc_component_update_bits(component,
75 TAS2562_PWR_CTRL,
76 TAS2562_MODE_MASK, TAS2562_ACTIVE);
77 break;
78 case SND_SOC_BIAS_STANDBY:
79 case SND_SOC_BIAS_PREPARE:
80 snd_soc_component_update_bits(component,
81 TAS2562_PWR_CTRL,
82 TAS2562_MODE_MASK, TAS2562_MUTE);
83 break;
84 case SND_SOC_BIAS_OFF:
85 snd_soc_component_update_bits(component,
86 TAS2562_PWR_CTRL,
87 TAS2562_MODE_MASK, TAS2562_SHUTDOWN);
88 break;
89
90 default:
91 dev_err(tas2562->dev,
92 "wrong power level setting %d\n", level);
93 return -EINVAL;
94 }
95
96 return 0;
97}
98
99static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
100{
101 int samp_rate;
102 int ramp_rate;
103
104 switch (samplerate) {
105 case 7350:
106 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
107 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
108 break;
109 case 8000:
110 ramp_rate = 0;
111 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
112 break;
113 case 14700:
114 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
115 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
116 break;
117 case 16000:
118 ramp_rate = 0;
119 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
120 break;
121 case 22050:
122 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
123 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
124 break;
125 case 24000:
126 ramp_rate = 0;
127 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
128 break;
129 case 29400:
130 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
131 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
132 break;
133 case 32000:
134 ramp_rate = 0;
135 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
136 break;
137 case 44100:
138 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
139 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
140 break;
141 case 48000:
142 ramp_rate = 0;
143 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
144 break;
145 case 88200:
146 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
147 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
148 break;
149 case 96000:
150 ramp_rate = 0;
151 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
152 break;
153 case 176400:
154 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
155 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
156 break;
157 case 192000:
158 ramp_rate = 0;
159 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
160 break;
161 default:
162 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
163 __func__, samplerate);
164 return -EINVAL;
165 }
166
167 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
168 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
169 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
170 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
171
172 return 0;
173}
174
175static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
176 unsigned int tx_mask, unsigned int rx_mask,
177 int slots, int slot_width)
178{
179 struct snd_soc_component *component = dai->component;
180 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
181 int left_slot, right_slot;
182 int slots_cfg;
183 int ret;
184
185 if (!tx_mask) {
186 dev_err(component->dev, "tx masks must not be 0\n");
187 return -EINVAL;
188 }
189
190 if (slots == 1) {
191 if (tx_mask != 1)
192 return -EINVAL;
193
194 left_slot = 0;
195 right_slot = 0;
196 } else {
197 left_slot = __ffs(tx_mask);
198 tx_mask &= ~(1 << left_slot);
199 if (tx_mask == 0) {
200 right_slot = left_slot;
201 } else {
202 right_slot = __ffs(tx_mask);
203 }
204 }
205
206 slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;
207
208 ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);
209 if (ret < 0)
210 return ret;
211
212 switch (slot_width) {
213 case 16:
214 ret = snd_soc_component_update_bits(component,
215 TAS2562_TDM_CFG2,
216 TAS2562_TDM_CFG2_RXLEN_MASK,
217 TAS2562_TDM_CFG2_RXLEN_16B);
218 break;
219 case 24:
220 ret = snd_soc_component_update_bits(component,
221 TAS2562_TDM_CFG2,
222 TAS2562_TDM_CFG2_RXLEN_MASK,
223 TAS2562_TDM_CFG2_RXLEN_24B);
224 break;
225 case 32:
226 ret = snd_soc_component_update_bits(component,
227 TAS2562_TDM_CFG2,
228 TAS2562_TDM_CFG2_RXLEN_MASK,
229 TAS2562_TDM_CFG2_RXLEN_32B);
230 break;
231
232 case 0:
233 /* Do not change slot width */
234 break;
235 default:
236 dev_err(tas2562->dev, "slot width not supported");
237 ret = -EINVAL;
238 }
239
240 if (ret < 0)
241 return ret;
242
243 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
244 TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
245 tas2562->v_sense_slot);
246 if (ret < 0)
247 return ret;
248
249 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
250 TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
251 tas2562->i_sense_slot);
252 if (ret < 0)
253 return ret;
254
255 return 0;
256}
257
258static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
259{
260 int ret;
261 int val;
262 int sense_en;
263
264 switch (bitwidth) {
265 case SNDRV_PCM_FORMAT_S16_LE:
266 snd_soc_component_update_bits(tas2562->component,
267 TAS2562_TDM_CFG2,
268 TAS2562_TDM_CFG2_RXWLEN_MASK,
269 TAS2562_TDM_CFG2_RXWLEN_16B);
270 break;
271 case SNDRV_PCM_FORMAT_S24_LE:
272 snd_soc_component_update_bits(tas2562->component,
273 TAS2562_TDM_CFG2,
274 TAS2562_TDM_CFG2_RXWLEN_MASK,
275 TAS2562_TDM_CFG2_RXWLEN_24B);
276 break;
277 case SNDRV_PCM_FORMAT_S32_LE:
278 snd_soc_component_update_bits(tas2562->component,
279 TAS2562_TDM_CFG2,
280 TAS2562_TDM_CFG2_RXWLEN_MASK,
281 TAS2562_TDM_CFG2_RXWLEN_32B);
282 break;
283
284 default:
285 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
286 return -EINVAL;
287 }
288
289 val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
290 if (val < 0)
291 return val;
292
293 if (val & (1 << TAS2562_VSENSE_POWER_EN))
294 sense_en = 0;
295 else
296 sense_en = TAS2562_TDM_CFG5_VSNS_EN;
297
298 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
299 TAS2562_TDM_CFG5_VSNS_EN, sense_en);
300 if (ret < 0)
301 return ret;
302
303 if (val & (1 << TAS2562_ISENSE_POWER_EN))
304 sense_en = 0;
305 else
306 sense_en = TAS2562_TDM_CFG6_ISNS_EN;
307
308 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
309 TAS2562_TDM_CFG6_ISNS_EN, sense_en);
310 if (ret < 0)
311 return ret;
312
313 return 0;
314}
315
316static int tas2562_hw_params(struct snd_pcm_substream *substream,
317 struct snd_pcm_hw_params *params,
318 struct snd_soc_dai *dai)
319{
320 struct snd_soc_component *component = dai->component;
321 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
322 int ret;
323
324 ret = tas2562_set_bitwidth(tas2562, params_format(params));
325 if (ret) {
326 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
327 return ret;
328 }
329
330 ret = tas2562_set_samplerate(tas2562, params_rate(params));
331 if (ret)
332 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);
333
334 return ret;
335}
336
337static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
338{
339 struct snd_soc_component *component = dai->component;
340 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
341 u8 asi_cfg_1 = 0;
342 u8 tdm_rx_start_slot = 0;
343 int ret;
344
345 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
346 case SND_SOC_DAIFMT_NB_NF:
347 asi_cfg_1 = 0;
348 break;
349 case SND_SOC_DAIFMT_IB_NF:
350 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
351 break;
352 default:
353 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
354 return -EINVAL;
355 }
356
357 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
358 TAS2562_TDM_CFG1_RX_EDGE_MASK,
359 asi_cfg_1);
360 if (ret < 0) {
361 dev_err(tas2562->dev, "Failed to set RX edge\n");
362 return ret;
363 }
364 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
365 case SND_SOC_DAIFMT_LEFT_J:
366 case SND_SOC_DAIFMT_DSP_B:
367 tdm_rx_start_slot = 0;
368 break;
369 case SND_SOC_DAIFMT_I2S:
370 case SND_SOC_DAIFMT_DSP_A:
371 tdm_rx_start_slot = 1;
372 break;
373 default:
374 dev_err(tas2562->dev,
375 "DAI Format is not found, fmt=0x%x\n", fmt);
376 return -EINVAL;
377 }
378
379 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
380 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1));
381 if (ret < 0)
382 return ret;
383
384 return 0;
385}
386
387static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)
388{
389 struct snd_soc_component *component = dai->component;
390
391 return snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
392 TAS2562_MODE_MASK,
393 mute ? TAS2562_MUTE : 0);
394}
395
396static int tas2562_codec_probe(struct snd_soc_component *component)
397{
398 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
399 int ret;
400
401 tas2562->component = component;
402
403 if (tas2562->sdz_gpio)
404 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
405
406 ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
407 TAS2562_MODE_MASK, TAS2562_MUTE);
408 if (ret < 0)
409 return ret;
410
411 return 0;
412}
413
414#ifdef CONFIG_PM
415static int tas2562_suspend(struct snd_soc_component *component)
416{
417 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
418
419 regcache_cache_only(tas2562->regmap, true);
420 regcache_mark_dirty(tas2562->regmap);
421
422 if (tas2562->sdz_gpio)
423 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
424
425 return 0;
426}
427
428static int tas2562_resume(struct snd_soc_component *component)
429{
430 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
431
432 if (tas2562->sdz_gpio)
433 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
434
435 regcache_cache_only(tas2562->regmap, false);
436
437 return regcache_sync(tas2562->regmap);
438}
439#else
440#define tas2562_suspend NULL
441#define tas2562_resume NULL
442#endif
443
444static const char * const tas2562_ASI1_src[] = {
445 "I2C offset", "Left", "Right", "LeftRightDiv2",
446};
447
448static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
449 tas2562_ASI1_src);
450
451static const struct snd_kcontrol_new tas2562_asi1_mux =
452 SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
453
454static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
455 struct snd_kcontrol *kcontrol, int event)
456{
457 struct snd_soc_component *component =
458 snd_soc_dapm_to_component(w->dapm);
459 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
460 int ret;
461
462 switch (event) {
463 case SND_SOC_DAPM_POST_PMU:
464 ret = snd_soc_component_update_bits(component,
465 TAS2562_PWR_CTRL,
466 TAS2562_MODE_MASK,
467 TAS2562_MUTE);
468 if (ret)
469 goto end;
470 break;
471 case SND_SOC_DAPM_PRE_PMD:
472 ret = snd_soc_component_update_bits(component,
473 TAS2562_PWR_CTRL,
474 TAS2562_MODE_MASK,
475 TAS2562_SHUTDOWN);
476 if (ret)
477 goto end;
478 break;
479 default:
480 dev_err(tas2562->dev, "Not supported evevt\n");
481 return -EINVAL;
482 }
483
484end:
485 if (ret < 0)
486 return ret;
487
488 return 0;
489}
490
491static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
492 struct snd_ctl_elem_value *ucontrol)
493{
494 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
495 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
496
497 ucontrol->value.integer.value[0] = tas2562->volume_lvl;
498 return 0;
499}
500
501static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
502 struct snd_ctl_elem_value *ucontrol)
503{
504 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
505 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
506 int ret;
507 u32 reg_val;
508
509 reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
510 ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
511 (reg_val & 0xff));
512 if (ret)
513 return ret;
514 ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
515 ((reg_val >> 8) & 0xff));
516 if (ret)
517 return ret;
518 ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
519 ((reg_val >> 16) & 0xff));
520 if (ret)
521 return ret;
522 ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
523 ((reg_val >> 24) & 0xff));
524 if (ret)
525 return ret;
526
527 tas2562->volume_lvl = ucontrol->value.integer.value[0];
528
529 return 0;
530}
531
532/* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
533static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
534
535static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
536
537static const struct snd_kcontrol_new isense_switch =
538 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
539 1, 1);
540
541static const struct snd_kcontrol_new vsense_switch =
542 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
543 1, 1);
544
545static const struct snd_kcontrol_new tas2562_snd_controls[] = {
546 SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0,
547 tas2562_dac_tlv),
548 {
549 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
550 .name = "Digital Volume Control",
551 .index = 0,
552 .tlv.p = dvc_tlv,
553 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
554 .info = snd_soc_info_volsw,
555 .get = tas2562_volume_control_get,
556 .put = tas2562_volume_control_put,
557 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),
558 },
559};
560
561static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = {
562 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
563 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
564 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
565 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
566 SND_SOC_DAPM_OUTPUT("OUT"),
567};
568
569static const struct snd_soc_dapm_route tas2110_audio_map[] = {
570 {"ASI1 Sel", "I2C offset", "ASI1"},
571 {"ASI1 Sel", "Left", "ASI1"},
572 {"ASI1 Sel", "Right", "ASI1"},
573 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
574 { "DAC", NULL, "ASI1 Sel" },
575 { "OUT", NULL, "DAC" },
576};
577
578static const struct snd_soc_component_driver soc_component_dev_tas2110 = {
579 .probe = tas2562_codec_probe,
580 .suspend = tas2562_suspend,
581 .resume = tas2562_resume,
582 .set_bias_level = tas2562_set_bias_level,
583 .controls = tas2562_snd_controls,
584 .num_controls = ARRAY_SIZE(tas2562_snd_controls),
585 .dapm_widgets = tas2110_dapm_widgets,
586 .num_dapm_widgets = ARRAY_SIZE(tas2110_dapm_widgets),
587 .dapm_routes = tas2110_audio_map,
588 .num_dapm_routes = ARRAY_SIZE(tas2110_audio_map),
589 .idle_bias_on = 1,
590 .use_pmdown_time = 1,
591 .endianness = 1,
592 .non_legacy_dai_naming = 1,
593};
594
595static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
596 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
597 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
598 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
599 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
600 SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
601 SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
602 SND_SOC_DAPM_SIGGEN("VMON"),
603 SND_SOC_DAPM_SIGGEN("IMON"),
604 SND_SOC_DAPM_OUTPUT("OUT"),
605};
606
607static const struct snd_soc_dapm_route tas2562_audio_map[] = {
608 {"ASI1 Sel", "I2C offset", "ASI1"},
609 {"ASI1 Sel", "Left", "ASI1"},
610 {"ASI1 Sel", "Right", "ASI1"},
611 {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
612 { "DAC", NULL, "ASI1 Sel" },
613 { "OUT", NULL, "DAC" },
614 {"ISENSE", "Switch", "IMON"},
615 {"VSENSE", "Switch", "VMON"},
616};
617
618static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
619 .probe = tas2562_codec_probe,
620 .suspend = tas2562_suspend,
621 .resume = tas2562_resume,
622 .set_bias_level = tas2562_set_bias_level,
623 .controls = tas2562_snd_controls,
624 .num_controls = ARRAY_SIZE(tas2562_snd_controls),
625 .dapm_widgets = tas2562_dapm_widgets,
626 .num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets),
627 .dapm_routes = tas2562_audio_map,
628 .num_dapm_routes = ARRAY_SIZE(tas2562_audio_map),
629 .idle_bias_on = 1,
630 .use_pmdown_time = 1,
631 .endianness = 1,
632 .non_legacy_dai_naming = 1,
633};
634
635static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
636 .hw_params = tas2562_hw_params,
637 .set_fmt = tas2562_set_dai_fmt,
638 .set_tdm_slot = tas2562_set_dai_tdm_slot,
639 .mute_stream = tas2562_mute,
640 .no_capture_mute = 1,
641};
642
643static struct snd_soc_dai_driver tas2562_dai[] = {
644 {
645 .name = "tas2562-amplifier",
646 .id = 0,
647 .playback = {
648 .stream_name = "ASI1 Playback",
649 .channels_min = 2,
650 .channels_max = 2,
651 .rates = SNDRV_PCM_RATE_8000_192000,
652 .formats = TAS2562_FORMATS,
653 },
654 .capture = {
655 .stream_name = "ASI1 Capture",
656 .channels_min = 0,
657 .channels_max = 2,
658 .rates = SNDRV_PCM_RATE_8000_192000,
659 .formats = TAS2562_FORMATS,
660 },
661 .ops = &tas2562_speaker_dai_ops,
662 },
663};
664
665static const struct regmap_range_cfg tas2562_ranges[] = {
666 {
667 .range_min = 0,
668 .range_max = 5 * 128,
669 .selector_reg = TAS2562_PAGE_CTRL,
670 .selector_mask = 0xff,
671 .selector_shift = 0,
672 .window_start = 0,
673 .window_len = 128,
674 },
675};
676
677static const struct reg_default tas2562_reg_defaults[] = {
678 { TAS2562_PAGE_CTRL, 0x00 },
679 { TAS2562_SW_RESET, 0x00 },
680 { TAS2562_PWR_CTRL, 0x0e },
681 { TAS2562_PB_CFG1, 0x20 },
682 { TAS2562_TDM_CFG0, 0x09 },
683 { TAS2562_TDM_CFG1, 0x02 },
684 { TAS2562_DVC_CFG1, 0x40 },
685 { TAS2562_DVC_CFG2, 0x40 },
686 { TAS2562_DVC_CFG3, 0x00 },
687 { TAS2562_DVC_CFG4, 0x00 },
688};
689
690static const struct regmap_config tas2562_regmap_config = {
691 .reg_bits = 8,
692 .val_bits = 8,
693
694 .max_register = 5 * 128,
695 .cache_type = REGCACHE_RBTREE,
696 .reg_defaults = tas2562_reg_defaults,
697 .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
698 .ranges = tas2562_ranges,
699 .num_ranges = ARRAY_SIZE(tas2562_ranges),
700};
701
702static int tas2562_parse_dt(struct tas2562_data *tas2562)
703{
704 struct device *dev = tas2562->dev;
705 int ret = 0;
706
707 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
708 if (IS_ERR(tas2562->sdz_gpio)) {
709 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
710 return -EPROBE_DEFER;
711
712 tas2562->sdz_gpio = NULL;
713 }
714
715 /*
716 * The shut-down property is deprecated but needs to be checked for
717 * backwards compatibility.
718 */
719 if (tas2562->sdz_gpio == NULL) {
720 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down",
721 GPIOD_OUT_HIGH);
722 if (IS_ERR(tas2562->sdz_gpio))
723 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
724 return -EPROBE_DEFER;
725
726 tas2562->sdz_gpio = NULL;
727 }
728
729 if (tas2562->model_id == TAS2110)
730 return ret;
731
732 ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
733 &tas2562->i_sense_slot);
734 if (ret) {
735 dev_err(dev, "Property %s is missing setting default slot\n",
736 "ti,imon-slot-no");
737 tas2562->i_sense_slot = 0;
738 }
739
740
741 ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
742 &tas2562->v_sense_slot);
743 if (ret) {
744 dev_info(dev, "Property %s is missing setting default slot\n",
745 "ti,vmon-slot-no");
746 tas2562->v_sense_slot = 2;
747 }
748
749 if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
750 dev_err(dev, "Vsense slot must be greater than Isense slot\n");
751 return -EINVAL;
752 }
753
754 return ret;
755}
756
757static int tas2562_probe(struct i2c_client *client,
758 const struct i2c_device_id *id)
759{
760 struct device *dev = &client->dev;
761 struct tas2562_data *data;
762 int ret;
763
764 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
765 if (!data)
766 return -ENOMEM;
767
768 data->client = client;
769 data->dev = &client->dev;
770 data->model_id = id->driver_data;
771
772 tas2562_parse_dt(data);
773
774 data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
775 if (IS_ERR(data->regmap)) {
776 ret = PTR_ERR(data->regmap);
777 dev_err(dev, "failed to allocate register map: %d\n", ret);
778 return ret;
779 }
780
781 dev_set_drvdata(&client->dev, data);
782
783 if (data->model_id == TAS2110)
784 return devm_snd_soc_register_component(dev,
785 &soc_component_dev_tas2110,
786 tas2562_dai,
787 ARRAY_SIZE(tas2562_dai));
788
789 return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
790 tas2562_dai,
791 ARRAY_SIZE(tas2562_dai));
792
793}
794
795static const struct i2c_device_id tas2562_id[] = {
796 { "tas2562", TAS2562 },
797 { "tas2563", TAS2563 },
798 { "tas2564", TAS2564 },
799 { "tas2110", TAS2110 },
800 { }
801};
802MODULE_DEVICE_TABLE(i2c, tas2562_id);
803
804#ifdef CONFIG_OF
805static const struct of_device_id tas2562_of_match[] = {
806 { .compatible = "ti,tas2562", },
807 { .compatible = "ti,tas2563", },
808 { .compatible = "ti,tas2564", },
809 { .compatible = "ti,tas2110", },
810 { },
811};
812MODULE_DEVICE_TABLE(of, tas2562_of_match);
813#endif
814
815static struct i2c_driver tas2562_i2c_driver = {
816 .driver = {
817 .name = "tas2562",
818 .of_match_table = of_match_ptr(tas2562_of_match),
819 },
820 .probe = tas2562_probe,
821 .id_table = tas2562_id,
822};
823
824module_i2c_driver(tas2562_i2c_driver);
825
826MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
827MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
828MODULE_LICENSE("GPL");