1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // ALSA SoC Texas Instruments TAS2563/TAS2781 Audio Smart Amplifier
4 //
5 // Copyright (C) 2022 - 2024 Texas Instruments Incorporated
6 // https://www.ti.com
7 //
8 // The TAS2563/TAS2781 driver implements a flexible and configurable
9 // algo coefficient setting for one, two, or even multiple
10 // TAS2563/TAS2781 chips.
11 //
12 // Author: Shenghao Ding <shenghao-ding@ti.com>
13 // Author: Kevin Lu <kevin-lu@ti.com>
14 //
15
16 #include <linux/crc8.h>
17 #include <linux/firmware.h>
18 #include <linux/gpio/consumer.h>
19 #include <linux/i2c.h>
20 #include <linux/init.h>
21 #include <linux/interrupt.h>
22 #include <linux/module.h>
23 #include <linux/of.h>
24 #include <linux/of_address.h>
25 #include <linux/of_irq.h>
26 #include <linux/regmap.h>
27 #include <linux/slab.h>
28 #include <sound/pcm_params.h>
29 #include <sound/soc.h>
30 #include <sound/tas2781.h>
31 #include <sound/tlv.h>
32 #include <sound/tas2563-tlv.h>
33 #include <sound/tas2781-tlv.h>
34 #include <asm/unaligned.h>
35
36 static const struct i2c_device_id tasdevice_id[] = {
37 { "tas2563", TAS2563 },
38 { "tas2781", TAS2781 },
39 {}
40 };
41 MODULE_DEVICE_TABLE(i2c, tasdevice_id);
42
43 #ifdef CONFIG_OF
44 static const struct of_device_id tasdevice_of_match[] = {
45 { .compatible = "ti,tas2563" },
46 { .compatible = "ti,tas2781" },
47 {},
48 };
49 MODULE_DEVICE_TABLE(of, tasdevice_of_match);
50 #endif
51
52 /**
53 * tas2781_digital_getvol - get the volum control
54 * @kcontrol: control pointer
55 * @ucontrol: User data
56 * Customer Kcontrol for tas2781 is primarily for regmap booking, paging
57 * depends on internal regmap mechanism.
58 * tas2781 contains book and page two-level register map, especially
59 * book switching will set the register BXXP00R7F, after switching to the
60 * correct book, then leverage the mechanism for paging to access the
61 * register.
62 */
63 static int tas2781_digital_getvol(struct snd_kcontrol *kcontrol,
64 struct snd_ctl_elem_value *ucontrol)
65 {
66 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
67 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
68 struct soc_mixer_control *mc =
69 (struct soc_mixer_control *)kcontrol->private_value;
70
71 return tasdevice_digital_getvol(tas_priv, ucontrol, mc);
72 }
73
74 static int tas2781_digital_putvol(struct snd_kcontrol *kcontrol,
75 struct snd_ctl_elem_value *ucontrol)
76 {
77 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
78 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
79 struct soc_mixer_control *mc =
80 (struct soc_mixer_control *)kcontrol->private_value;
81
82 return tasdevice_digital_putvol(tas_priv, ucontrol, mc);
83 }
84
85 static int tas2781_amp_getvol(struct snd_kcontrol *kcontrol,
86 struct snd_ctl_elem_value *ucontrol)
87 {
88 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
89 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
90 struct soc_mixer_control *mc =
91 (struct soc_mixer_control *)kcontrol->private_value;
92
93 return tasdevice_amp_getvol(tas_priv, ucontrol, mc);
94 }
95
96 static int tas2781_amp_putvol(struct snd_kcontrol *kcontrol,
97 struct snd_ctl_elem_value *ucontrol)
98 {
99 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
100 struct tasdevice_priv *tas_priv =
101 snd_soc_component_get_drvdata(codec);
102 struct soc_mixer_control *mc =
103 (struct soc_mixer_control *)kcontrol->private_value;
104
105 return tasdevice_amp_putvol(tas_priv, ucontrol, mc);
106 }
107
108 static int tasdev_force_fwload_get(struct snd_kcontrol *kcontrol,
109 struct snd_ctl_elem_value *ucontrol)
110 {
111 struct snd_soc_component *component =
112 snd_soc_kcontrol_component(kcontrol);
113 struct tasdevice_priv *tas_priv =
114 snd_soc_component_get_drvdata(component);
115
116 ucontrol->value.integer.value[0] = (int)tas_priv->force_fwload_status;
117 dev_dbg(tas_priv->dev, "%s : Force FWload %s\n", __func__,
118 tas_priv->force_fwload_status ? "ON" : "OFF");
119
120 return 0;
121 }
122
123 static int tasdev_force_fwload_put(struct snd_kcontrol *kcontrol,
124 struct snd_ctl_elem_value *ucontrol)
125 {
126 struct snd_soc_component *component =
127 snd_soc_kcontrol_component(kcontrol);
128 struct tasdevice_priv *tas_priv =
129 snd_soc_component_get_drvdata(component);
130 bool change, val = (bool)ucontrol->value.integer.value[0];
131
132 if (tas_priv->force_fwload_status == val)
133 change = false;
134 else {
135 change = true;
136 tas_priv->force_fwload_status = val;
137 }
138 dev_dbg(tas_priv->dev, "%s : Force FWload %s\n", __func__,
139 tas_priv->force_fwload_status ? "ON" : "OFF");
140
141 return change;
142 }
143
144 static int tas2563_digital_gain_get(
145 struct snd_kcontrol *kcontrol,
146 struct snd_ctl_elem_value *ucontrol)
147 {
148 struct soc_mixer_control *mc =
149 (struct soc_mixer_control *)kcontrol->private_value;
150 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
151 struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
152 unsigned int l = 0, r = mc->max;
153 unsigned int target, ar_mid, mid, ar_l, ar_r;
154 unsigned int reg = mc->reg;
155 unsigned char data[4];
156 int ret;
157
158 mutex_lock(&tas_dev->codec_lock);
159 /* Read the primary device */
160 ret = tasdevice_dev_bulk_read(tas_dev, 0, reg, data, 4);
161 if (ret) {
162 dev_err(tas_dev->dev, "%s, get AMP vol error\n", __func__);
163 goto out;
164 }
165
166 target = get_unaligned_be32(&data[0]);
167
168 while (r > 1 + l) {
169 mid = (l + r) / 2;
170 ar_mid = get_unaligned_be32(tas2563_dvc_table[mid]);
171 if (target < ar_mid)
172 r = mid;
173 else
174 l = mid;
175 }
176
177 ar_l = get_unaligned_be32(tas2563_dvc_table[l]);
178 ar_r = get_unaligned_be32(tas2563_dvc_table[r]);
179
180 /* find out the member same as or closer to the current volume */
181 ucontrol->value.integer.value[0] =
182 abs(target - ar_l) <= abs(target - ar_r) ? l : r;
183 out:
184 mutex_unlock(&tas_dev->codec_lock);
185 return 0;
186 }
187
188 static int tas2563_digital_gain_put(
189 struct snd_kcontrol *kcontrol,
190 struct snd_ctl_elem_value *ucontrol)
191 {
192 struct soc_mixer_control *mc =
193 (struct soc_mixer_control *)kcontrol->private_value;
194 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
195 struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(codec);
196 int vol = ucontrol->value.integer.value[0];
197 int status = 0, max = mc->max, rc = 1;
198 int i, ret;
199 unsigned int reg = mc->reg;
200 unsigned int volrd, volwr;
201 unsigned char data[4];
202
203 vol = clamp(vol, 0, max);
204 mutex_lock(&tas_dev->codec_lock);
205 /* Read the primary device */
206 ret = tasdevice_dev_bulk_read(tas_dev, 0, reg, data, 4);
207 if (ret) {
208 dev_err(tas_dev->dev, "%s, get AMP vol error\n", __func__);
209 rc = -1;
210 goto out;
211 }
212
213 volrd = get_unaligned_be32(&data[0]);
214 volwr = get_unaligned_be32(tas2563_dvc_table[vol]);
215
216 if (volrd == volwr) {
217 rc = 0;
218 goto out;
219 }
220
221 for (i = 0; i < tas_dev->ndev; i++) {
222 ret = tasdevice_dev_bulk_write(tas_dev, i, reg,
223 (unsigned char *)tas2563_dvc_table[vol], 4);
224 if (ret) {
225 dev_err(tas_dev->dev,
226 "%s, set digital vol error in dev %d\n",
227 __func__, i);
228 status |= BIT(i);
229 }
230 }
231
232 if (status)
233 rc = -1;
234 out:
235 mutex_unlock(&tas_dev->codec_lock);
236 return rc;
237 }
238
239 static const struct snd_kcontrol_new tasdevice_snd_controls[] = {
240 SOC_SINGLE_BOOL_EXT("Speaker Force Firmware Load", 0,
241 tasdev_force_fwload_get, tasdev_force_fwload_put),
242 };
243
244 static const struct snd_kcontrol_new tas2781_snd_controls[] = {
245 SOC_SINGLE_RANGE_EXT_TLV("Speaker Analog Gain", TAS2781_AMP_LEVEL,
246 1, 0, 20, 0, tas2781_amp_getvol,
247 tas2781_amp_putvol, amp_vol_tlv),
248 SOC_SINGLE_RANGE_EXT_TLV("Speaker Digital Gain", TAS2781_DVC_LVL,
249 0, 0, 200, 1, tas2781_digital_getvol,
250 tas2781_digital_putvol, dvc_tlv),
251 };
252
253 static const struct snd_kcontrol_new tas2563_snd_controls[] = {
254 SOC_SINGLE_RANGE_EXT_TLV("Speaker Digital Volume", TAS2563_DVC_LVL, 0,
255 0, ARRAY_SIZE(tas2563_dvc_table) - 1, 0,
256 tas2563_digital_gain_get, tas2563_digital_gain_put,
257 tas2563_dvc_tlv),
258 };
259
260 static int tasdevice_set_profile_id(struct snd_kcontrol *kcontrol,
261 struct snd_ctl_elem_value *ucontrol)
262 {
263 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
264 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
265 int ret = 0;
266
267 if (tas_priv->rcabin.profile_cfg_id !=
268 ucontrol->value.integer.value[0]) {
269 tas_priv->rcabin.profile_cfg_id =
270 ucontrol->value.integer.value[0];
271 ret = 1;
272 }
273
274 return ret;
275 }
276
277 static int tasdevice_info_programs(struct snd_kcontrol *kcontrol,
278 struct snd_ctl_elem_info *uinfo)
279 {
280 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
281 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
282 struct tasdevice_fw *tas_fw = tas_priv->fmw;
283
284 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
285 uinfo->count = 1;
286 uinfo->value.integer.min = 0;
287 uinfo->value.integer.max = (int)tas_fw->nr_programs;
288
289 return 0;
290 }
291
292 static int tasdevice_info_configurations(
293 struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
294 {
295 struct snd_soc_component *codec =
296 snd_soc_kcontrol_component(kcontrol);
297 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
298 struct tasdevice_fw *tas_fw = tas_priv->fmw;
299
300 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
301 uinfo->count = 1;
302 uinfo->value.integer.min = 0;
303 uinfo->value.integer.max = (int)tas_fw->nr_configurations - 1;
304
305 return 0;
306 }
307
308 static int tasdevice_info_profile(struct snd_kcontrol *kcontrol,
309 struct snd_ctl_elem_info *uinfo)
310 {
311 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
312 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
313
314 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
315 uinfo->count = 1;
316 uinfo->value.integer.min = 0;
317 uinfo->value.integer.max = tas_priv->rcabin.ncfgs - 1;
318
319 return 0;
320 }
321
322 static int tasdevice_get_profile_id(struct snd_kcontrol *kcontrol,
323 struct snd_ctl_elem_value *ucontrol)
324 {
325 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
326 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
327
328 ucontrol->value.integer.value[0] = tas_priv->rcabin.profile_cfg_id;
329
330 return 0;
331 }
332
333 static int tasdevice_create_control(struct tasdevice_priv *tas_priv)
334 {
335 struct snd_kcontrol_new *prof_ctrls;
336 int nr_controls = 1;
337 int mix_index = 0;
338 int ret;
339 char *name;
340
341 prof_ctrls = devm_kcalloc(tas_priv->dev, nr_controls,
342 sizeof(prof_ctrls[0]), GFP_KERNEL);
343 if (!prof_ctrls) {
344 ret = -ENOMEM;
345 goto out;
346 }
347
348 /* Create a mixer item for selecting the active profile */
349 name = devm_kzalloc(tas_priv->dev, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
350 GFP_KERNEL);
351 if (!name) {
352 ret = -ENOMEM;
353 goto out;
354 }
355 scnprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "Speaker Profile Id");
356 prof_ctrls[mix_index].name = name;
357 prof_ctrls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
358 prof_ctrls[mix_index].info = tasdevice_info_profile;
359 prof_ctrls[mix_index].get = tasdevice_get_profile_id;
360 prof_ctrls[mix_index].put = tasdevice_set_profile_id;
361 mix_index++;
362
363 ret = snd_soc_add_component_controls(tas_priv->codec,
364 prof_ctrls, nr_controls < mix_index ? nr_controls : mix_index);
365
366 out:
367 return ret;
368 }
369
370 static int tasdevice_program_get(struct snd_kcontrol *kcontrol,
371 struct snd_ctl_elem_value *ucontrol)
372 {
373 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
374 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
375
376 ucontrol->value.integer.value[0] = tas_priv->cur_prog;
377
378 return 0;
379 }
380
381 static int tasdevice_program_put(struct snd_kcontrol *kcontrol,
382 struct snd_ctl_elem_value *ucontrol)
383 {
384 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
385 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
386 unsigned int nr_program = ucontrol->value.integer.value[0];
387 int ret = 0;
388
389 if (tas_priv->cur_prog != nr_program) {
390 tas_priv->cur_prog = nr_program;
391 ret = 1;
392 }
393
394 return ret;
395 }
396
397 static int tasdevice_configuration_get(struct snd_kcontrol *kcontrol,
398 struct snd_ctl_elem_value *ucontrol)
399 {
400
401 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
402 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
403
404 ucontrol->value.integer.value[0] = tas_priv->cur_conf;
405
406 return 0;
407 }
408
409 static int tasdevice_configuration_put(
410 struct snd_kcontrol *kcontrol,
411 struct snd_ctl_elem_value *ucontrol)
412 {
413 struct snd_soc_component *codec = snd_soc_kcontrol_component(kcontrol);
414 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
415 unsigned int nr_configuration = ucontrol->value.integer.value[0];
416 int ret = 0;
417
418 if (tas_priv->cur_conf != nr_configuration) {
419 tas_priv->cur_conf = nr_configuration;
420 ret = 1;
421 }
422
423 return ret;
424 }
425
426 static int tasdevice_dsp_create_ctrls(
427 struct tasdevice_priv *tas_priv)
428 {
429 struct snd_kcontrol_new *dsp_ctrls;
430 char *prog_name, *conf_name;
431 int nr_controls = 2;
432 int mix_index = 0;
433 int ret;
434
435 /* Alloc kcontrol via devm_kzalloc, which don't manually
436 * free the kcontrol
437 */
438 dsp_ctrls = devm_kcalloc(tas_priv->dev, nr_controls,
439 sizeof(dsp_ctrls[0]), GFP_KERNEL);
440 if (!dsp_ctrls) {
441 ret = -ENOMEM;
442 goto out;
443 }
444
445 /* Create a mixer item for selecting the active profile */
446 prog_name = devm_kzalloc(tas_priv->dev,
447 SNDRV_CTL_ELEM_ID_NAME_MAXLEN, GFP_KERNEL);
448 conf_name = devm_kzalloc(tas_priv->dev, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
449 GFP_KERNEL);
450 if (!prog_name || !conf_name) {
451 ret = -ENOMEM;
452 goto out;
453 }
454
455 scnprintf(prog_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
456 "Speaker Program Id");
457 dsp_ctrls[mix_index].name = prog_name;
458 dsp_ctrls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
459 dsp_ctrls[mix_index].info = tasdevice_info_programs;
460 dsp_ctrls[mix_index].get = tasdevice_program_get;
461 dsp_ctrls[mix_index].put = tasdevice_program_put;
462 mix_index++;
463
464 scnprintf(conf_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
465 "Speaker Config Id");
466 dsp_ctrls[mix_index].name = conf_name;
467 dsp_ctrls[mix_index].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
468 dsp_ctrls[mix_index].info = tasdevice_info_configurations;
469 dsp_ctrls[mix_index].get = tasdevice_configuration_get;
470 dsp_ctrls[mix_index].put = tasdevice_configuration_put;
471 mix_index++;
472
473 ret = snd_soc_add_component_controls(tas_priv->codec, dsp_ctrls,
474 nr_controls < mix_index ? nr_controls : mix_index);
475
476 out:
477 return ret;
478 }
479
480 static void tasdevice_fw_ready(const struct firmware *fmw,
481 void *context)
482 {
483 struct tasdevice_priv *tas_priv = context;
484 int ret = 0;
485 int i;
486
487 mutex_lock(&tas_priv->codec_lock);
488
489 ret = tasdevice_rca_parser(tas_priv, fmw);
490 if (ret) {
491 tasdevice_config_info_remove(tas_priv);
492 goto out;
493 }
494 tasdevice_create_control(tas_priv);
495
496 tasdevice_dsp_remove(tas_priv);
497 tasdevice_calbin_remove(tas_priv);
498 /*
499 * The baseline is the RCA-only case, and then the code attempts to
500 * load DSP firmware but in case of failures just keep going, i.e.
501 * failing to load DSP firmware is NOT an error.
502 */
503 tas_priv->fw_state = TASDEVICE_RCA_FW_OK;
504 if (tas_priv->name_prefix)
505 scnprintf(tas_priv->coef_binaryname, 64, "%s-%s_coef.bin",
506 tas_priv->name_prefix, tas_priv->dev_name);
507 else
508 scnprintf(tas_priv->coef_binaryname, 64, "%s_coef.bin",
509 tas_priv->dev_name);
510 ret = tasdevice_dsp_parser(tas_priv);
511 if (ret) {
512 dev_err(tas_priv->dev, "dspfw load %s error\n",
513 tas_priv->coef_binaryname);
514 goto out;
515 }
516
517 /*
518 * If no dsp-related kcontrol created, the dsp resource will be freed.
519 */
520 ret = tasdevice_dsp_create_ctrls(tas_priv);
521 if (ret) {
522 dev_err(tas_priv->dev, "dsp controls error\n");
523 goto out;
524 }
525
526 tas_priv->fw_state = TASDEVICE_DSP_FW_ALL_OK;
527
528 /* If calibrated data occurs error, dsp will still works with default
529 * calibrated data inside algo.
530 */
531 for (i = 0; i < tas_priv->ndev; i++) {
532 if (tas_priv->name_prefix)
533 scnprintf(tas_priv->cal_binaryname[i], 64,
534 "%s-%s_cal_0x%02x.bin", tas_priv->name_prefix,
535 tas_priv->dev_name,
536 tas_priv->tasdevice[i].dev_addr);
537 else
538 scnprintf(tas_priv->cal_binaryname[i], 64,
539 "%s_cal_0x%02x.bin", tas_priv->dev_name,
540 tas_priv->tasdevice[i].dev_addr);
541 ret = tas2781_load_calibration(tas_priv,
542 tas_priv->cal_binaryname[i], i);
543 if (ret != 0)
544 dev_err(tas_priv->dev,
545 "%s: load %s error, default will effect\n",
546 __func__, tas_priv->cal_binaryname[i]);
547 }
548
549 tasdevice_prmg_load(tas_priv, 0);
550 tas_priv->cur_prog = 0;
551 out:
552 if (tas_priv->fw_state == TASDEVICE_RCA_FW_OK) {
553 /* If DSP FW fail, DSP kcontrol won't be created. */
554 tasdevice_dsp_remove(tas_priv);
555 }
556 mutex_unlock(&tas_priv->codec_lock);
557 if (fmw)
558 release_firmware(fmw);
559 }
560
561 static int tasdevice_dapm_event(struct snd_soc_dapm_widget *w,
562 struct snd_kcontrol *kcontrol, int event)
563 {
564 struct snd_soc_component *codec = snd_soc_dapm_to_component(w->dapm);
565 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
566 int state = 0;
567
568 /* Codec Lock Hold */
569 mutex_lock(&tas_priv->codec_lock);
570 if (event == SND_SOC_DAPM_PRE_PMD)
571 state = 1;
572 tasdevice_tuning_switch(tas_priv, state);
573 /* Codec Lock Release*/
574 mutex_unlock(&tas_priv->codec_lock);
575
576 return 0;
577 }
578
579 static const struct snd_soc_dapm_widget tasdevice_dapm_widgets[] = {
580 SND_SOC_DAPM_AIF_IN("ASI", "ASI Playback", 0, SND_SOC_NOPM, 0, 0),
581 SND_SOC_DAPM_AIF_OUT_E("ASI OUT", "ASI Capture", 0, SND_SOC_NOPM,
582 0, 0, tasdevice_dapm_event,
583 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
584 SND_SOC_DAPM_SPK("SPK", tasdevice_dapm_event),
585 SND_SOC_DAPM_OUTPUT("OUT"),
586 SND_SOC_DAPM_INPUT("DMIC")
587 };
588
589 static const struct snd_soc_dapm_route tasdevice_audio_map[] = {
590 {"SPK", NULL, "ASI"},
591 {"OUT", NULL, "SPK"},
592 {"ASI OUT", NULL, "DMIC"}
593 };
594
595 static int tasdevice_startup(struct snd_pcm_substream *substream,
596 struct snd_soc_dai *dai)
597 {
598 struct snd_soc_component *codec = dai->component;
599 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
600
601 switch (tas_priv->fw_state) {
602 case TASDEVICE_RCA_FW_OK:
603 case TASDEVICE_DSP_FW_ALL_OK:
604 return 0;
605 default:
606 return -EINVAL;
607 }
608 }
609
610 static int tasdevice_hw_params(struct snd_pcm_substream *substream,
611 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
612 {
613 struct tasdevice_priv *tas_priv = snd_soc_dai_get_drvdata(dai);
614 unsigned int slot_width;
615 unsigned int fsrate;
616 int bclk_rate;
617 int rc = 0;
618
619 fsrate = params_rate(params);
620 switch (fsrate) {
621 case 48000:
622 case 44100:
623 break;
624 default:
625 dev_err(tas_priv->dev, "%s: incorrect sample rate = %u\n",
626 __func__, fsrate);
627 rc = -EINVAL;
628 goto out;
629 }
630
631 slot_width = params_width(params);
632 switch (slot_width) {
633 case 16:
634 case 20:
635 case 24:
636 case 32:
637 break;
638 default:
639 dev_err(tas_priv->dev, "%s: incorrect slot width = %u\n",
640 __func__, slot_width);
641 rc = -EINVAL;
642 goto out;
643 }
644
645 bclk_rate = snd_soc_params_to_bclk(params);
646 if (bclk_rate < 0) {
647 dev_err(tas_priv->dev, "%s: incorrect bclk rate = %d\n",
648 __func__, bclk_rate);
649 rc = bclk_rate;
650 goto out;
651 }
652
653 out:
654 return rc;
655 }
656
657 static int tasdevice_set_dai_sysclk(struct snd_soc_dai *codec_dai,
658 int clk_id, unsigned int freq, int dir)
659 {
660 struct tasdevice_priv *tas_priv = snd_soc_dai_get_drvdata(codec_dai);
661
662 tas_priv->sysclk = freq;
663
664 return 0;
665 }
666
667 static const struct snd_soc_dai_ops tasdevice_dai_ops = {
668 .startup = tasdevice_startup,
669 .hw_params = tasdevice_hw_params,
670 .set_sysclk = tasdevice_set_dai_sysclk,
671 };
672
673 static struct snd_soc_dai_driver tasdevice_dai_driver[] = {
674 {
675 .name = "tas2781_codec",
676 .id = 0,
677 .playback = {
678 .stream_name = "Playback",
679 .channels_min = 1,
680 .channels_max = 4,
681 .rates = TASDEVICE_RATES,
682 .formats = TASDEVICE_FORMATS,
683 },
684 .capture = {
685 .stream_name = "Capture",
686 .channels_min = 1,
687 .channels_max = 4,
688 .rates = TASDEVICE_RATES,
689 .formats = TASDEVICE_FORMATS,
690 },
691 .ops = &tasdevice_dai_ops,
692 .symmetric_rate = 1,
693 },
694 };
695
696 static int tasdevice_codec_probe(struct snd_soc_component *codec)
697 {
698 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
699 struct snd_kcontrol_new *p;
700 unsigned int size;
701 int rc;
702
703 switch (tas_priv->chip_id) {
704 case TAS2781:
705 p = (struct snd_kcontrol_new *)tas2781_snd_controls;
706 size = ARRAY_SIZE(tas2781_snd_controls);
707 break;
708 default:
709 p = (struct snd_kcontrol_new *)tas2563_snd_controls;
710 size = ARRAY_SIZE(tas2563_snd_controls);
711 }
712
713 rc = snd_soc_add_component_controls(codec, p, size);
714 if (rc < 0) {
715 dev_err(tas_priv->dev, "%s: Add control err rc = %d",
716 __func__, rc);
717 return rc;
718 }
719
720 tas_priv->name_prefix = codec->name_prefix;
721 return tascodec_init(tas_priv, codec, THIS_MODULE, tasdevice_fw_ready);
722 }
723
724 static void tasdevice_deinit(void *context)
725 {
726 struct tasdevice_priv *tas_priv = (struct tasdevice_priv *) context;
727
728 tasdevice_config_info_remove(tas_priv);
729 tasdevice_dsp_remove(tas_priv);
730 tasdevice_calbin_remove(tas_priv);
731 tas_priv->fw_state = TASDEVICE_DSP_FW_PENDING;
732 }
733
734 static void tasdevice_codec_remove(
735 struct snd_soc_component *codec)
736 {
737 struct tasdevice_priv *tas_priv = snd_soc_component_get_drvdata(codec);
738
739 tasdevice_deinit(tas_priv);
740 }
741
742 static const struct snd_soc_component_driver
743 soc_codec_driver_tasdevice = {
744 .probe = tasdevice_codec_probe,
745 .remove = tasdevice_codec_remove,
746 .controls = tasdevice_snd_controls,
747 .num_controls = ARRAY_SIZE(tasdevice_snd_controls),
748 .dapm_widgets = tasdevice_dapm_widgets,
749 .num_dapm_widgets = ARRAY_SIZE(tasdevice_dapm_widgets),
750 .dapm_routes = tasdevice_audio_map,
751 .num_dapm_routes = ARRAY_SIZE(tasdevice_audio_map),
752 .idle_bias_on = 1,
753 .endianness = 1,
754 };
755
756 static void tasdevice_parse_dt(struct tasdevice_priv *tas_priv)
757 {
758 struct i2c_client *client = (struct i2c_client *)tas_priv->client;
759 unsigned int dev_addrs[TASDEVICE_MAX_CHANNELS];
760 int i, ndev = 0;
761
762 if (tas_priv->isacpi) {
763 ndev = device_property_read_u32_array(&client->dev,
764 "ti,audio-slots", NULL, 0);
765 if (ndev <= 0) {
766 ndev = 1;
767 dev_addrs[0] = client->addr;
768 } else {
769 ndev = (ndev < ARRAY_SIZE(dev_addrs))
770 ? ndev : ARRAY_SIZE(dev_addrs);
771 ndev = device_property_read_u32_array(&client->dev,
772 "ti,audio-slots", dev_addrs, ndev);
773 }
774
775 tas_priv->irq =
776 acpi_dev_gpio_irq_get(ACPI_COMPANION(&client->dev), 0);
777 } else if (IS_ENABLED(CONFIG_OF)) {
778 struct device_node *np = tas_priv->dev->of_node;
779 u64 addr;
780
781 for (i = 0; i < TASDEVICE_MAX_CHANNELS; i++) {
782 if (of_property_read_reg(np, i, &addr, NULL))
783 break;
784 dev_addrs[ndev++] = addr;
785 }
786
787 tas_priv->irq = of_irq_get(np, 0);
788 } else {
789 ndev = 1;
790 dev_addrs[0] = client->addr;
791 }
792 tas_priv->ndev = ndev;
793 for (i = 0; i < ndev; i++)
794 tas_priv->tasdevice[i].dev_addr = dev_addrs[i];
795
796 tas_priv->reset = devm_gpiod_get_optional(&client->dev,
797 "reset", GPIOD_OUT_HIGH);
798 if (IS_ERR(tas_priv->reset))
799 dev_err(tas_priv->dev, "%s Can't get reset GPIO\n",
800 __func__);
801
802 strcpy(tas_priv->dev_name, tasdevice_id[tas_priv->chip_id].name);
803 }
804
805 static int tasdevice_i2c_probe(struct i2c_client *i2c)
806 {
807 const struct i2c_device_id *id = i2c_match_id(tasdevice_id, i2c);
808 const struct acpi_device_id *acpi_id;
809 struct tasdevice_priv *tas_priv;
810 int ret;
811
812 tas_priv = tasdevice_kzalloc(i2c);
813 if (!tas_priv)
814 return -ENOMEM;
815
816 dev_set_drvdata(&i2c->dev, tas_priv);
817
818 if (ACPI_HANDLE(&i2c->dev)) {
819 acpi_id = acpi_match_device(i2c->dev.driver->acpi_match_table,
820 &i2c->dev);
821 if (!acpi_id) {
822 dev_err(&i2c->dev, "No driver data\n");
823 ret = -EINVAL;
824 goto err;
825 }
826 tas_priv->chip_id = acpi_id->driver_data;
827 tas_priv->isacpi = true;
828 } else {
829 tas_priv->chip_id = id ? id->driver_data : 0;
830 tas_priv->isacpi = false;
831 }
832
833 tasdevice_parse_dt(tas_priv);
834
835 ret = tasdevice_init(tas_priv);
836 if (ret)
837 goto err;
838
839 tasdevice_reset(tas_priv);
840
841 ret = devm_snd_soc_register_component(tas_priv->dev,
842 &soc_codec_driver_tasdevice,
843 tasdevice_dai_driver, ARRAY_SIZE(tasdevice_dai_driver));
844 if (ret) {
845 dev_err(tas_priv->dev, "%s: codec register error:0x%08x\n",
846 __func__, ret);
847 goto err;
848 }
849 err:
850 if (ret < 0)
851 tasdevice_remove(tas_priv);
852 return ret;
853 }
854
855 static void tasdevice_i2c_remove(struct i2c_client *client)
856 {
857 struct tasdevice_priv *tas_priv = i2c_get_clientdata(client);
858
859 tasdevice_remove(tas_priv);
860 }
861
862 #ifdef CONFIG_ACPI
863 static const struct acpi_device_id tasdevice_acpi_match[] = {
864 { "TAS2781", TAS2781 },
865 {},
866 };
867
868 MODULE_DEVICE_TABLE(acpi, tasdevice_acpi_match);
869 #endif
870
871 static struct i2c_driver tasdevice_i2c_driver = {
872 .driver = {
873 .name = "tasdev-codec",
874 .of_match_table = of_match_ptr(tasdevice_of_match),
875 #ifdef CONFIG_ACPI
876 .acpi_match_table = ACPI_PTR(tasdevice_acpi_match),
877 #endif
878 },
879 .probe = tasdevice_i2c_probe,
880 .remove = tasdevice_i2c_remove,
881 .id_table = tasdevice_id,
882 };
883
884 module_i2c_driver(tasdevice_i2c_driver);
885
886 MODULE_AUTHOR("Shenghao Ding <shenghao-ding@ti.com>");
887 MODULE_AUTHOR("Kevin Lu <kevin-lu@ti.com>");
888 MODULE_DESCRIPTION("ASoC TAS2781 Driver");
889 MODULE_LICENSE("GPL");
890 MODULE_IMPORT_NS(SND_SOC_TAS2781_FMWLIB);
891
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