1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
|
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/jack.h>
#include <sound/soc.h>
#include <uapi/linux/input-event-codes.h>
#include "common.h"
#include "qdsp6/q6afe.h"
#define DEFAULT_SAMPLE_RATE_48K 48000
#define DEFAULT_MCLK_RATE 24576000
#define TDM_BCLK_RATE 6144000
#define MI2S_BCLK_RATE 1536000
#define LEFT_SPK_TDM_TX_MASK 0x30
#define RIGHT_SPK_TDM_TX_MASK 0xC0
#define SPK_TDM_RX_MASK 0x03
#define NUM_TDM_SLOTS 8
struct sdm845_snd_data {
struct snd_soc_jack jack;
bool jack_setup;
struct snd_soc_card *card;
uint32_t pri_mi2s_clk_count;
uint32_t sec_mi2s_clk_count;
uint32_t quat_tdm_clk_count;
};
static unsigned int tdm_slot_offset[8] = {0, 4, 8, 12, 16, 20, 24, 28};
static int sdm845_tdm_snd_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int ret = 0, j;
int channels, slot_width;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
slot_width = 16;
break;
default:
dev_err(rtd->dev, "%s: invalid param format 0x%x\n",
__func__, params_format(params));
return -EINVAL;
}
channels = params_channels(params);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0x3,
8, slot_width);
if (ret < 0) {
dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
__func__, ret);
goto end;
}
ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
channels, tdm_slot_offset);
if (ret < 0) {
dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
__func__, ret);
goto end;
}
} else {
ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xf, 0,
8, slot_width);
if (ret < 0) {
dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
__func__, ret);
goto end;
}
ret = snd_soc_dai_set_channel_map(cpu_dai, channels,
tdm_slot_offset, 0, NULL);
if (ret < 0) {
dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
__func__, ret);
goto end;
}
}
for (j = 0; j < rtd->num_codecs; j++) {
struct snd_soc_dai *codec_dai = rtd->codec_dais[j];
if (!strcmp(codec_dai->component->name_prefix, "Left")) {
ret = snd_soc_dai_set_tdm_slot(
codec_dai, LEFT_SPK_TDM_TX_MASK,
SPK_TDM_RX_MASK, NUM_TDM_SLOTS,
slot_width);
if (ret < 0) {
dev_err(rtd->dev,
"DEV0 TDM slot err:%d\n", ret);
return ret;
}
}
if (!strcmp(codec_dai->component->name_prefix, "Right")) {
ret = snd_soc_dai_set_tdm_slot(
codec_dai, RIGHT_SPK_TDM_TX_MASK,
SPK_TDM_RX_MASK, NUM_TDM_SLOTS,
slot_width);
if (ret < 0) {
dev_err(rtd->dev,
"DEV1 TDM slot err:%d\n", ret);
return ret;
}
}
}
end:
return ret;
}
static int sdm845_snd_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int ret = 0;
switch (cpu_dai->id) {
case QUATERNARY_TDM_RX_0:
case QUATERNARY_TDM_TX_0:
ret = sdm845_tdm_snd_hw_params(substream, params);
break;
default:
pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
break;
}
return ret;
}
static int sdm845_dai_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_component *component;
struct snd_soc_dai_link *dai_link = rtd->dai_link;
struct snd_soc_card *card = rtd->card;
struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(card);
int i, rval;
if (!pdata->jack_setup) {
struct snd_jack *jack;
rval = snd_soc_card_jack_new(card, "Headset Jack",
SND_JACK_HEADSET |
SND_JACK_HEADPHONE |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3,
&pdata->jack, NULL, 0);
if (rval < 0) {
dev_err(card->dev, "Unable to add Headphone Jack\n");
return rval;
}
jack = pdata->jack.jack;
snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
pdata->jack_setup = true;
}
for (i = 0 ; i < dai_link->num_codecs; i++) {
struct snd_soc_dai *dai = rtd->codec_dais[i];
component = dai->component;
rval = snd_soc_component_set_jack(
component, &pdata->jack, NULL);
if (rval != 0 && rval != -ENOTSUPP) {
dev_warn(card->dev, "Failed to set jack: %d\n", rval);
return rval;
}
}
return 0;
}
static int sdm845_snd_startup(struct snd_pcm_substream *substream)
{
unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
unsigned int codec_dai_fmt = SND_SOC_DAIFMT_CBS_CFS;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int j;
int ret;
switch (cpu_dai->id) {
case PRIMARY_MI2S_RX:
case PRIMARY_MI2S_TX:
if (++(data->pri_mi2s_clk_count) == 1) {
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_MCLK_1,
DEFAULT_MCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
}
snd_soc_dai_set_fmt(cpu_dai, fmt);
break;
case SECONDARY_MI2S_TX:
if (++(data->sec_mi2s_clk_count) == 1) {
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
MI2S_BCLK_RATE, SNDRV_PCM_STREAM_CAPTURE);
}
snd_soc_dai_set_fmt(cpu_dai, fmt);
break;
case QUATERNARY_TDM_RX_0:
case QUATERNARY_TDM_TX_0:
if (++(data->quat_tdm_clk_count) == 1) {
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
TDM_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
}
codec_dai_fmt |= SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_DSP_B;
for (j = 0; j < rtd->num_codecs; j++) {
codec_dai = rtd->codec_dais[j];
if (!strcmp(codec_dai->component->name_prefix,
"Left")) {
ret = snd_soc_dai_set_fmt(
codec_dai, codec_dai_fmt);
if (ret < 0) {
dev_err(rtd->dev,
"Left TDM fmt err:%d\n", ret);
return ret;
}
}
if (!strcmp(codec_dai->component->name_prefix,
"Right")) {
ret = snd_soc_dai_set_fmt(
codec_dai, codec_dai_fmt);
if (ret < 0) {
dev_err(rtd->dev,
"Right TDM slot err:%d\n", ret);
return ret;
}
}
}
break;
default:
pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
break;
}
return 0;
}
static void sdm845_snd_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
switch (cpu_dai->id) {
case PRIMARY_MI2S_RX:
case PRIMARY_MI2S_TX:
if (--(data->pri_mi2s_clk_count) == 0) {
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_MCLK_1,
0, SNDRV_PCM_STREAM_PLAYBACK);
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
0, SNDRV_PCM_STREAM_PLAYBACK);
};
break;
case SECONDARY_MI2S_TX:
if (--(data->sec_mi2s_clk_count) == 0) {
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
0, SNDRV_PCM_STREAM_CAPTURE);
}
break;
case QUATERNARY_TDM_RX_0:
case QUATERNARY_TDM_TX_0:
if (--(data->quat_tdm_clk_count) == 0) {
snd_soc_dai_set_sysclk(cpu_dai,
Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
0, SNDRV_PCM_STREAM_PLAYBACK);
}
break;
default:
pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
break;
}
}
static const struct snd_soc_ops sdm845_be_ops = {
.hw_params = sdm845_snd_hw_params,
.startup = sdm845_snd_startup,
.shutdown = sdm845_snd_shutdown,
};
static int sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
struct snd_interval *rate = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_RATE);
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
rate->min = rate->max = DEFAULT_SAMPLE_RATE_48K;
channels->min = channels->max = 2;
snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
return 0;
}
static const struct snd_soc_dapm_widget sdm845_snd_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_SPK("Left Spk", NULL),
SND_SOC_DAPM_SPK("Right Spk", NULL),
SND_SOC_DAPM_MIC("Int Mic", NULL),
};
static void sdm845_add_ops(struct snd_soc_card *card)
{
struct snd_soc_dai_link *link;
int i;
for_each_card_prelinks(card, i, link) {
if (link->no_pcm == 1) {
link->ops = &sdm845_be_ops;
link->be_hw_params_fixup = sdm845_be_hw_params_fixup;
}
link->init = sdm845_dai_init;
}
}
static int sdm845_snd_platform_probe(struct platform_device *pdev)
{
struct snd_soc_card *card;
struct sdm845_snd_data *data;
struct device *dev = &pdev->dev;
int ret;
card = kzalloc(sizeof(*card), GFP_KERNEL);
if (!card)
return -ENOMEM;
/* Allocate the private data */
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data) {
ret = -ENOMEM;
goto data_alloc_fail;
}
card->dapm_widgets = sdm845_snd_widgets;
card->num_dapm_widgets = ARRAY_SIZE(sdm845_snd_widgets);
card->dev = dev;
dev_set_drvdata(dev, card);
ret = qcom_snd_parse_of(card);
if (ret) {
dev_err(dev, "Error parsing OF data\n");
goto parse_dt_fail;
}
data->card = card;
snd_soc_card_set_drvdata(card, data);
sdm845_add_ops(card);
ret = snd_soc_register_card(card);
if (ret) {
dev_err(dev, "Sound card registration failed\n");
goto register_card_fail;
}
return ret;
register_card_fail:
kfree(card->dai_link);
parse_dt_fail:
kfree(data);
data_alloc_fail:
kfree(card);
return ret;
}
static int sdm845_snd_platform_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = dev_get_drvdata(&pdev->dev);
struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
snd_soc_unregister_card(card);
kfree(card->dai_link);
kfree(data);
kfree(card);
return 0;
}
static const struct of_device_id sdm845_snd_device_id[] = {
{ .compatible = "qcom,sdm845-sndcard" },
{},
};
MODULE_DEVICE_TABLE(of, sdm845_snd_device_id);
static struct platform_driver sdm845_snd_driver = {
.probe = sdm845_snd_platform_probe,
.remove = sdm845_snd_platform_remove,
.driver = {
.name = "msm-snd-sdm845",
.of_match_table = sdm845_snd_device_id,
},
};
module_platform_driver(sdm845_snd_driver);
MODULE_DESCRIPTION("sdm845 ASoC Machine Driver");
MODULE_LICENSE("GPL v2");
|