This source file includes following definitions.
- sdm845_tdm_snd_hw_params
- sdm845_snd_hw_params
- sdm845_jack_free
- sdm845_dai_init
- sdm845_snd_startup
- sdm845_snd_shutdown
- sdm845_be_hw_params_fixup
- sdm845_add_ops
- sdm845_snd_platform_probe
- sdm845_snd_platform_remove
1
2
3
4
5
6 #include <linux/module.h>
7 #include <linux/platform_device.h>
8 #include <linux/of_device.h>
9 #include <sound/core.h>
10 #include <sound/pcm.h>
11 #include <sound/pcm_params.h>
12 #include <sound/jack.h>
13 #include <sound/soc.h>
14 #include <uapi/linux/input-event-codes.h>
15 #include "common.h"
16 #include "qdsp6/q6afe.h"
17 #include "../codecs/rt5663.h"
18
19 #define DEFAULT_SAMPLE_RATE_48K 48000
20 #define DEFAULT_MCLK_RATE 24576000
21 #define TDM_BCLK_RATE 6144000
22 #define MI2S_BCLK_RATE 1536000
23 #define LEFT_SPK_TDM_TX_MASK 0x30
24 #define RIGHT_SPK_TDM_TX_MASK 0xC0
25 #define SPK_TDM_RX_MASK 0x03
26 #define NUM_TDM_SLOTS 8
27
28 struct sdm845_snd_data {
29 struct snd_soc_jack jack;
30 bool jack_setup;
31 struct snd_soc_card *card;
32 uint32_t pri_mi2s_clk_count;
33 uint32_t sec_mi2s_clk_count;
34 uint32_t quat_tdm_clk_count;
35 };
36
37 static unsigned int tdm_slot_offset[8] = {0, 4, 8, 12, 16, 20, 24, 28};
38
39 static int sdm845_tdm_snd_hw_params(struct snd_pcm_substream *substream,
40 struct snd_pcm_hw_params *params)
41 {
42 struct snd_soc_pcm_runtime *rtd = substream->private_data;
43 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
44 int ret = 0, j;
45 int channels, slot_width;
46
47 switch (params_format(params)) {
48 case SNDRV_PCM_FORMAT_S16_LE:
49 slot_width = 16;
50 break;
51 default:
52 dev_err(rtd->dev, "%s: invalid param format 0x%x\n",
53 __func__, params_format(params));
54 return -EINVAL;
55 }
56
57 channels = params_channels(params);
58 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
59 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0x3,
60 8, slot_width);
61 if (ret < 0) {
62 dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
63 __func__, ret);
64 goto end;
65 }
66
67 ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
68 channels, tdm_slot_offset);
69 if (ret < 0) {
70 dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
71 __func__, ret);
72 goto end;
73 }
74 } else {
75 ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xf, 0,
76 8, slot_width);
77 if (ret < 0) {
78 dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
79 __func__, ret);
80 goto end;
81 }
82
83 ret = snd_soc_dai_set_channel_map(cpu_dai, channels,
84 tdm_slot_offset, 0, NULL);
85 if (ret < 0) {
86 dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
87 __func__, ret);
88 goto end;
89 }
90 }
91
92 for (j = 0; j < rtd->num_codecs; j++) {
93 struct snd_soc_dai *codec_dai = rtd->codec_dais[j];
94
95 if (!strcmp(codec_dai->component->name_prefix, "Left")) {
96 ret = snd_soc_dai_set_tdm_slot(
97 codec_dai, LEFT_SPK_TDM_TX_MASK,
98 SPK_TDM_RX_MASK, NUM_TDM_SLOTS,
99 slot_width);
100 if (ret < 0) {
101 dev_err(rtd->dev,
102 "DEV0 TDM slot err:%d\n", ret);
103 return ret;
104 }
105 }
106
107 if (!strcmp(codec_dai->component->name_prefix, "Right")) {
108 ret = snd_soc_dai_set_tdm_slot(
109 codec_dai, RIGHT_SPK_TDM_TX_MASK,
110 SPK_TDM_RX_MASK, NUM_TDM_SLOTS,
111 slot_width);
112 if (ret < 0) {
113 dev_err(rtd->dev,
114 "DEV1 TDM slot err:%d\n", ret);
115 return ret;
116 }
117 }
118 }
119
120 end:
121 return ret;
122 }
123
124 static int sdm845_snd_hw_params(struct snd_pcm_substream *substream,
125 struct snd_pcm_hw_params *params)
126 {
127 struct snd_soc_pcm_runtime *rtd = substream->private_data;
128 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
129 struct snd_soc_dai *codec_dai = rtd->codec_dai;
130 int ret = 0;
131
132 switch (cpu_dai->id) {
133 case PRIMARY_MI2S_RX:
134 case PRIMARY_MI2S_TX:
135
136
137
138
139 rt5663_sel_asrc_clk_src(
140 codec_dai->component,
141 RT5663_DA_STEREO_FILTER | RT5663_AD_STEREO_FILTER,
142 RT5663_CLK_SEL_I2S1_ASRC);
143 ret = snd_soc_dai_set_sysclk(
144 codec_dai, RT5663_SCLK_S_MCLK, DEFAULT_MCLK_RATE,
145 SND_SOC_CLOCK_IN);
146 if (ret < 0)
147 dev_err(rtd->dev,
148 "snd_soc_dai_set_sysclk err = %d\n", ret);
149 break;
150 case QUATERNARY_TDM_RX_0:
151 case QUATERNARY_TDM_TX_0:
152 ret = sdm845_tdm_snd_hw_params(substream, params);
153 break;
154 default:
155 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
156 break;
157 }
158 return ret;
159 }
160
161 static void sdm845_jack_free(struct snd_jack *jack)
162 {
163 struct snd_soc_component *component = jack->private_data;
164
165 snd_soc_component_set_jack(component, NULL, NULL);
166 }
167
168 static int sdm845_dai_init(struct snd_soc_pcm_runtime *rtd)
169 {
170 struct snd_soc_component *component;
171 struct snd_soc_card *card = rtd->card;
172 struct snd_soc_dai *codec_dai = rtd->codec_dai;
173 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
174 struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(card);
175 struct snd_jack *jack;
176 int rval;
177
178 if (!pdata->jack_setup) {
179 rval = snd_soc_card_jack_new(card, "Headset Jack",
180 SND_JACK_HEADSET |
181 SND_JACK_HEADPHONE |
182 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
183 SND_JACK_BTN_2 | SND_JACK_BTN_3,
184 &pdata->jack, NULL, 0);
185
186 if (rval < 0) {
187 dev_err(card->dev, "Unable to add Headphone Jack\n");
188 return rval;
189 }
190
191 jack = pdata->jack.jack;
192
193 snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
194 snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
195 snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
196 snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
197 pdata->jack_setup = true;
198 }
199
200 switch (cpu_dai->id) {
201 case PRIMARY_MI2S_RX:
202 jack = pdata->jack.jack;
203 component = codec_dai->component;
204
205 jack->private_data = component;
206 jack->private_free = sdm845_jack_free;
207 rval = snd_soc_component_set_jack(component,
208 &pdata->jack, NULL);
209 if (rval != 0 && rval != -ENOTSUPP) {
210 dev_warn(card->dev, "Failed to set jack: %d\n", rval);
211 return rval;
212 }
213 break;
214 default:
215 break;
216 }
217
218 return 0;
219 }
220
221
222 static int sdm845_snd_startup(struct snd_pcm_substream *substream)
223 {
224 unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
225 unsigned int codec_dai_fmt = SND_SOC_DAIFMT_CBS_CFS;
226 struct snd_soc_pcm_runtime *rtd = substream->private_data;
227 struct snd_soc_card *card = rtd->card;
228 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
229 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
230 struct snd_soc_dai *codec_dai = rtd->codec_dai;
231 int j;
232 int ret;
233
234 switch (cpu_dai->id) {
235 case PRIMARY_MI2S_RX:
236 case PRIMARY_MI2S_TX:
237 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF;
238 if (++(data->pri_mi2s_clk_count) == 1) {
239 snd_soc_dai_set_sysclk(cpu_dai,
240 Q6AFE_LPASS_CLK_ID_MCLK_1,
241 DEFAULT_MCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
242 snd_soc_dai_set_sysclk(cpu_dai,
243 Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
244 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
245 }
246 snd_soc_dai_set_fmt(cpu_dai, fmt);
247 snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
248 break;
249
250 case SECONDARY_MI2S_TX:
251 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S;
252 if (++(data->sec_mi2s_clk_count) == 1) {
253 snd_soc_dai_set_sysclk(cpu_dai,
254 Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
255 MI2S_BCLK_RATE, SNDRV_PCM_STREAM_CAPTURE);
256 }
257 snd_soc_dai_set_fmt(cpu_dai, fmt);
258 snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
259 break;
260
261 case QUATERNARY_TDM_RX_0:
262 case QUATERNARY_TDM_TX_0:
263 if (++(data->quat_tdm_clk_count) == 1) {
264 snd_soc_dai_set_sysclk(cpu_dai,
265 Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
266 TDM_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
267 }
268
269 codec_dai_fmt |= SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_DSP_B;
270
271 for (j = 0; j < rtd->num_codecs; j++) {
272 codec_dai = rtd->codec_dais[j];
273
274 if (!strcmp(codec_dai->component->name_prefix,
275 "Left")) {
276 ret = snd_soc_dai_set_fmt(
277 codec_dai, codec_dai_fmt);
278 if (ret < 0) {
279 dev_err(rtd->dev,
280 "Left TDM fmt err:%d\n", ret);
281 return ret;
282 }
283 }
284
285 if (!strcmp(codec_dai->component->name_prefix,
286 "Right")) {
287 ret = snd_soc_dai_set_fmt(
288 codec_dai, codec_dai_fmt);
289 if (ret < 0) {
290 dev_err(rtd->dev,
291 "Right TDM slot err:%d\n", ret);
292 return ret;
293 }
294 }
295 }
296 break;
297
298 default:
299 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
300 break;
301 }
302 return 0;
303 }
304
305 static void sdm845_snd_shutdown(struct snd_pcm_substream *substream)
306 {
307 struct snd_soc_pcm_runtime *rtd = substream->private_data;
308 struct snd_soc_card *card = rtd->card;
309 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
310 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
311
312 switch (cpu_dai->id) {
313 case PRIMARY_MI2S_RX:
314 case PRIMARY_MI2S_TX:
315 if (--(data->pri_mi2s_clk_count) == 0) {
316 snd_soc_dai_set_sysclk(cpu_dai,
317 Q6AFE_LPASS_CLK_ID_MCLK_1,
318 0, SNDRV_PCM_STREAM_PLAYBACK);
319 snd_soc_dai_set_sysclk(cpu_dai,
320 Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
321 0, SNDRV_PCM_STREAM_PLAYBACK);
322 }
323 break;
324
325 case SECONDARY_MI2S_TX:
326 if (--(data->sec_mi2s_clk_count) == 0) {
327 snd_soc_dai_set_sysclk(cpu_dai,
328 Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
329 0, SNDRV_PCM_STREAM_CAPTURE);
330 }
331 break;
332
333 case QUATERNARY_TDM_RX_0:
334 case QUATERNARY_TDM_TX_0:
335 if (--(data->quat_tdm_clk_count) == 0) {
336 snd_soc_dai_set_sysclk(cpu_dai,
337 Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
338 0, SNDRV_PCM_STREAM_PLAYBACK);
339 }
340 break;
341
342 default:
343 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
344 break;
345 }
346 }
347
348 static const struct snd_soc_ops sdm845_be_ops = {
349 .hw_params = sdm845_snd_hw_params,
350 .startup = sdm845_snd_startup,
351 .shutdown = sdm845_snd_shutdown,
352 };
353
354 static int sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
355 struct snd_pcm_hw_params *params)
356 {
357 struct snd_interval *rate = hw_param_interval(params,
358 SNDRV_PCM_HW_PARAM_RATE);
359 struct snd_interval *channels = hw_param_interval(params,
360 SNDRV_PCM_HW_PARAM_CHANNELS);
361 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
362
363 rate->min = rate->max = DEFAULT_SAMPLE_RATE_48K;
364 channels->min = channels->max = 2;
365 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
366
367 return 0;
368 }
369
370 static const struct snd_soc_dapm_widget sdm845_snd_widgets[] = {
371 SND_SOC_DAPM_HP("Headphone Jack", NULL),
372 SND_SOC_DAPM_MIC("Headset Mic", NULL),
373 SND_SOC_DAPM_SPK("Left Spk", NULL),
374 SND_SOC_DAPM_SPK("Right Spk", NULL),
375 SND_SOC_DAPM_MIC("Int Mic", NULL),
376 };
377
378 static void sdm845_add_ops(struct snd_soc_card *card)
379 {
380 struct snd_soc_dai_link *link;
381 int i;
382
383 for_each_card_prelinks(card, i, link) {
384 if (link->no_pcm == 1) {
385 link->ops = &sdm845_be_ops;
386 link->be_hw_params_fixup = sdm845_be_hw_params_fixup;
387 }
388 link->init = sdm845_dai_init;
389 }
390 }
391
392 static int sdm845_snd_platform_probe(struct platform_device *pdev)
393 {
394 struct snd_soc_card *card;
395 struct sdm845_snd_data *data;
396 struct device *dev = &pdev->dev;
397 int ret;
398
399 card = kzalloc(sizeof(*card), GFP_KERNEL);
400 if (!card)
401 return -ENOMEM;
402
403
404 data = kzalloc(sizeof(*data), GFP_KERNEL);
405 if (!data) {
406 ret = -ENOMEM;
407 goto data_alloc_fail;
408 }
409
410 card->dapm_widgets = sdm845_snd_widgets;
411 card->num_dapm_widgets = ARRAY_SIZE(sdm845_snd_widgets);
412 card->dev = dev;
413 dev_set_drvdata(dev, card);
414 ret = qcom_snd_parse_of(card);
415 if (ret) {
416 dev_err(dev, "Error parsing OF data\n");
417 goto parse_dt_fail;
418 }
419
420 data->card = card;
421 snd_soc_card_set_drvdata(card, data);
422
423 sdm845_add_ops(card);
424 ret = snd_soc_register_card(card);
425 if (ret) {
426 dev_err(dev, "Sound card registration failed\n");
427 goto register_card_fail;
428 }
429 return ret;
430
431 register_card_fail:
432 kfree(card->dai_link);
433 parse_dt_fail:
434 kfree(data);
435 data_alloc_fail:
436 kfree(card);
437 return ret;
438 }
439
440 static int sdm845_snd_platform_remove(struct platform_device *pdev)
441 {
442 struct snd_soc_card *card = dev_get_drvdata(&pdev->dev);
443 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
444
445 snd_soc_unregister_card(card);
446 kfree(card->dai_link);
447 kfree(data);
448 kfree(card);
449 return 0;
450 }
451
452 static const struct of_device_id sdm845_snd_device_id[] = {
453 { .compatible = "qcom,sdm845-sndcard" },
454 {},
455 };
456 MODULE_DEVICE_TABLE(of, sdm845_snd_device_id);
457
458 static struct platform_driver sdm845_snd_driver = {
459 .probe = sdm845_snd_platform_probe,
460 .remove = sdm845_snd_platform_remove,
461 .driver = {
462 .name = "msm-snd-sdm845",
463 .of_match_table = sdm845_snd_device_id,
464 },
465 };
466 module_platform_driver(sdm845_snd_driver);
467
468 MODULE_DESCRIPTION("sdm845 ASoC Machine Driver");
469 MODULE_LICENSE("GPL v2");