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
|
// SPDX-License-Identifier: GPL-2.0
//
// ASoC DPCM Machine driver for Baytrail / Cherrytrail platforms with
// CX2072X codec
//
#include <linux/acpi.h>
#include <linux/device.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/jack.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
#include "../../codecs/cx2072x.h"
#include "../atom/sst-atom-controls.h"
static const struct snd_soc_dapm_widget byt_cht_cx2072x_widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Int Mic", NULL),
SND_SOC_DAPM_SPK("Ext Spk", NULL),
};
static const struct snd_soc_dapm_route byt_cht_cx2072x_audio_map[] = {
/* External Speakers: HFL, HFR */
{"Headphone", NULL, "PORTA"},
{"Ext Spk", NULL, "PORTG"},
{"PORTC", NULL, "Int Mic"},
{"PORTD", NULL, "Headset Mic"},
{"Playback", NULL, "ssp2 Tx"},
{"ssp2 Tx", NULL, "codec_out0"},
{"ssp2 Tx", NULL, "codec_out1"},
{"codec_in0", NULL, "ssp2 Rx"},
{"codec_in1", NULL, "ssp2 Rx"},
{"ssp2 Rx", NULL, "Capture"},
};
static const struct snd_kcontrol_new byt_cht_cx2072x_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Int Mic"),
SOC_DAPM_PIN_SWITCH("Ext Spk"),
};
static struct snd_soc_jack byt_cht_cx2072x_headset;
/* Headset jack detection DAPM pins */
static struct snd_soc_jack_pin byt_cht_cx2072x_headset_pins[] = {
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
{
.pin = "Headphone",
.mask = SND_JACK_HEADPHONE,
},
};
static const struct acpi_gpio_params byt_cht_cx2072x_headset_gpios;
static const struct acpi_gpio_mapping byt_cht_cx2072x_acpi_gpios[] = {
{ "headset-gpios", &byt_cht_cx2072x_headset_gpios, 1 },
{},
};
static int byt_cht_cx2072x_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_card *card = rtd->card;
struct snd_soc_component *codec = rtd->codec_dai->component;
int ret;
if (devm_acpi_dev_add_driver_gpios(codec->dev,
byt_cht_cx2072x_acpi_gpios))
dev_warn(rtd->dev, "Unable to add GPIO mapping table\n");
card->dapm.idle_bias_off = true;
/* set the default PLL rate, the clock is handled by the codec driver */
ret = snd_soc_dai_set_sysclk(rtd->codec_dai, CX2072X_MCLK_EXTERNAL_PLL,
19200000, SND_SOC_CLOCK_IN);
if (ret) {
dev_err(rtd->dev, "Could not set sysclk\n");
return ret;
}
ret = snd_soc_card_jack_new(card, "Headset",
SND_JACK_HEADSET | SND_JACK_BTN_0,
&byt_cht_cx2072x_headset,
byt_cht_cx2072x_headset_pins,
ARRAY_SIZE(byt_cht_cx2072x_headset_pins));
if (ret)
return ret;
snd_soc_component_set_jack(codec, &byt_cht_cx2072x_headset, NULL);
snd_soc_dai_set_bclk_ratio(rtd->codec_dai, 50);
return ret;
}
static int byt_cht_cx2072x_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);
int ret;
/* The DSP will covert the FE rate to 48k, stereo, 24bits */
rate->min = rate->max = 48000;
channels->min = channels->max = 2;
/* set SSP2 to 24-bit */
params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
/*
* Default mode for SSP configuration is TDM 4 slot, override config
* with explicit setting to I2S 2ch 24-bit. The word length is set with
* dai_set_tdm_slot() since there is no other API exposed
*/
ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
SND_SOC_DAIFMT_I2S |
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS);
if (ret < 0) {
dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
if (ret < 0) {
dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
return ret;
}
return 0;
}
static int byt_cht_cx2072x_aif1_startup(struct snd_pcm_substream *substream)
{
return snd_pcm_hw_constraint_single(substream->runtime,
SNDRV_PCM_HW_PARAM_RATE, 48000);
}
static struct snd_soc_ops byt_cht_cx2072x_aif1_ops = {
.startup = byt_cht_cx2072x_aif1_startup,
};
SND_SOC_DAILINK_DEF(dummy,
DAILINK_COMP_ARRAY(COMP_DUMMY()));
SND_SOC_DAILINK_DEF(media,
DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
SND_SOC_DAILINK_DEF(deepbuffer,
DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
SND_SOC_DAILINK_DEF(ssp2,
DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
SND_SOC_DAILINK_DEF(cx2072x,
DAILINK_COMP_ARRAY(COMP_CODEC("i2c-14F10720:00", "cx2072x-hifi")));
SND_SOC_DAILINK_DEF(platform,
DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
static struct snd_soc_dai_link byt_cht_cx2072x_dais[] = {
[MERR_DPCM_AUDIO] = {
.name = "Audio Port",
.stream_name = "Audio",
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.dpcm_capture = 1,
.ops = &byt_cht_cx2072x_aif1_ops,
SND_SOC_DAILINK_REG(media, dummy, platform),
},
[MERR_DPCM_DEEP_BUFFER] = {
.name = "Deep-Buffer Audio Port",
.stream_name = "Deep-Buffer Audio",
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.ops = &byt_cht_cx2072x_aif1_ops,
SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
},
/* back ends */
{
.name = "SSP2-Codec",
.id = 0,
.no_pcm = 1,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
| SND_SOC_DAIFMT_CBS_CFS,
.init = byt_cht_cx2072x_init,
.be_hw_params_fixup = byt_cht_cx2072x_fixup,
.nonatomic = true,
.dpcm_playback = 1,
.dpcm_capture = 1,
SND_SOC_DAILINK_REG(ssp2, cx2072x, platform),
},
};
/* SoC card */
static struct snd_soc_card byt_cht_cx2072x_card = {
.name = "bytcht-cx2072x",
.owner = THIS_MODULE,
.dai_link = byt_cht_cx2072x_dais,
.num_links = ARRAY_SIZE(byt_cht_cx2072x_dais),
.dapm_widgets = byt_cht_cx2072x_widgets,
.num_dapm_widgets = ARRAY_SIZE(byt_cht_cx2072x_widgets),
.dapm_routes = byt_cht_cx2072x_audio_map,
.num_dapm_routes = ARRAY_SIZE(byt_cht_cx2072x_audio_map),
.controls = byt_cht_cx2072x_controls,
.num_controls = ARRAY_SIZE(byt_cht_cx2072x_controls),
};
static char codec_name[SND_ACPI_I2C_ID_LEN];
static int snd_byt_cht_cx2072x_probe(struct platform_device *pdev)
{
struct snd_soc_acpi_mach *mach;
struct acpi_device *adev;
int dai_index = 0;
int i, ret;
byt_cht_cx2072x_card.dev = &pdev->dev;
mach = dev_get_platdata(&pdev->dev);
/* fix index of codec dai */
for (i = 0; i < ARRAY_SIZE(byt_cht_cx2072x_dais); i++) {
if (!strcmp(byt_cht_cx2072x_dais[i].codecs->name,
"i2c-14F10720:00")) {
dai_index = i;
break;
}
}
/* fixup codec name based on HID */
adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
if (adev) {
snprintf(codec_name, sizeof(codec_name), "i2c-%s",
acpi_dev_name(adev));
put_device(&adev->dev);
byt_cht_cx2072x_dais[dai_index].codecs->name = codec_name;
}
/* override plaform name, if required */
ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_cx2072x_card,
mach->mach_params.platform);
if (ret)
return ret;
return devm_snd_soc_register_card(&pdev->dev, &byt_cht_cx2072x_card);
}
static struct platform_driver snd_byt_cht_cx2072x_driver = {
.driver = {
.name = "bytcht_cx2072x",
},
.probe = snd_byt_cht_cx2072x_probe,
};
module_platform_driver(snd_byt_cht_cx2072x_driver);
MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:bytcht_cx2072x");
|
