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7#include <linux/acpi.h>
8#include <linux/device.h>
9#include <linux/module.h>
10#include <linux/platform_device.h>
11#include <linux/slab.h>
12#include <sound/pcm.h>
13#include <sound/pcm_params.h>
14#include <sound/jack.h>
15#include <sound/soc.h>
16#include <sound/soc-acpi.h>
17#include "../../codecs/cx2072x.h"
18#include "../atom/sst-atom-controls.h"
19
20static const struct snd_soc_dapm_widget byt_cht_cx2072x_widgets[] = {
21 SND_SOC_DAPM_HP("Headphone", NULL),
22 SND_SOC_DAPM_MIC("Headset Mic", NULL),
23 SND_SOC_DAPM_MIC("Int Mic", NULL),
24 SND_SOC_DAPM_SPK("Ext Spk", NULL),
25};
26
27static const struct snd_soc_dapm_route byt_cht_cx2072x_audio_map[] = {
28
29 {"Headphone", NULL, "PORTA"},
30 {"Ext Spk", NULL, "PORTG"},
31 {"PORTC", NULL, "Int Mic"},
32 {"PORTD", NULL, "Headset Mic"},
33
34 {"Playback", NULL, "ssp2 Tx"},
35 {"ssp2 Tx", NULL, "codec_out0"},
36 {"ssp2 Tx", NULL, "codec_out1"},
37 {"codec_in0", NULL, "ssp2 Rx"},
38 {"codec_in1", NULL, "ssp2 Rx"},
39 {"ssp2 Rx", NULL, "Capture"},
40};
41
42static const struct snd_kcontrol_new byt_cht_cx2072x_controls[] = {
43 SOC_DAPM_PIN_SWITCH("Headphone"),
44 SOC_DAPM_PIN_SWITCH("Headset Mic"),
45 SOC_DAPM_PIN_SWITCH("Int Mic"),
46 SOC_DAPM_PIN_SWITCH("Ext Spk"),
47};
48
49static struct snd_soc_jack byt_cht_cx2072x_headset;
50
51
52static struct snd_soc_jack_pin byt_cht_cx2072x_headset_pins[] = {
53 {
54 .pin = "Headset Mic",
55 .mask = SND_JACK_MICROPHONE,
56 },
57 {
58 .pin = "Headphone",
59 .mask = SND_JACK_HEADPHONE,
60 },
61};
62
63static const struct acpi_gpio_params byt_cht_cx2072x_headset_gpios;
64static const struct acpi_gpio_mapping byt_cht_cx2072x_acpi_gpios[] = {
65 { "headset-gpios", &byt_cht_cx2072x_headset_gpios, 1 },
66 {},
67};
68
69static int byt_cht_cx2072x_init(struct snd_soc_pcm_runtime *rtd)
70{
71 struct snd_soc_card *card = rtd->card;
72 struct snd_soc_component *codec = rtd->codec_dai->component;
73 int ret;
74
75 if (devm_acpi_dev_add_driver_gpios(codec->dev,
76 byt_cht_cx2072x_acpi_gpios))
77 dev_warn(rtd->dev, "Unable to add GPIO mapping table\n");
78
79 card->dapm.idle_bias_off = true;
80
81
82 ret = snd_soc_dai_set_sysclk(rtd->codec_dai, CX2072X_MCLK_EXTERNAL_PLL,
83 19200000, SND_SOC_CLOCK_IN);
84 if (ret) {
85 dev_err(rtd->dev, "Could not set sysclk\n");
86 return ret;
87 }
88
89 ret = snd_soc_card_jack_new(card, "Headset",
90 SND_JACK_HEADSET | SND_JACK_BTN_0,
91 &byt_cht_cx2072x_headset,
92 byt_cht_cx2072x_headset_pins,
93 ARRAY_SIZE(byt_cht_cx2072x_headset_pins));
94 if (ret)
95 return ret;
96
97 snd_soc_component_set_jack(codec, &byt_cht_cx2072x_headset, NULL);
98
99 snd_soc_dai_set_bclk_ratio(rtd->codec_dai, 50);
100
101 return ret;
102}
103
104static int byt_cht_cx2072x_fixup(struct snd_soc_pcm_runtime *rtd,
105 struct snd_pcm_hw_params *params)
106{
107 struct snd_interval *rate =
108 hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
109 struct snd_interval *channels =
110 hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
111 int ret;
112
113
114 rate->min = rate->max = 48000;
115 channels->min = channels->max = 2;
116
117
118 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
119
120
121
122
123
124
125 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
126 SND_SOC_DAIFMT_I2S |
127 SND_SOC_DAIFMT_NB_NF |
128 SND_SOC_DAIFMT_CBS_CFS);
129 if (ret < 0) {
130 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
131 return ret;
132 }
133
134 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
135 if (ret < 0) {
136 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
137 return ret;
138 }
139
140 return 0;
141}
142
143static int byt_cht_cx2072x_aif1_startup(struct snd_pcm_substream *substream)
144{
145 return snd_pcm_hw_constraint_single(substream->runtime,
146 SNDRV_PCM_HW_PARAM_RATE, 48000);
147}
148
149static struct snd_soc_ops byt_cht_cx2072x_aif1_ops = {
150 .startup = byt_cht_cx2072x_aif1_startup,
151};
152
153SND_SOC_DAILINK_DEF(dummy,
154 DAILINK_COMP_ARRAY(COMP_DUMMY()));
155
156SND_SOC_DAILINK_DEF(media,
157 DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
158
159SND_SOC_DAILINK_DEF(deepbuffer,
160 DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
161
162SND_SOC_DAILINK_DEF(ssp2,
163 DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
164
165SND_SOC_DAILINK_DEF(cx2072x,
166 DAILINK_COMP_ARRAY(COMP_CODEC("i2c-14F10720:00", "cx2072x-hifi")));
167
168SND_SOC_DAILINK_DEF(platform,
169 DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
170
171static struct snd_soc_dai_link byt_cht_cx2072x_dais[] = {
172 [MERR_DPCM_AUDIO] = {
173 .name = "Audio Port",
174 .stream_name = "Audio",
175 .nonatomic = true,
176 .dynamic = 1,
177 .dpcm_playback = 1,
178 .dpcm_capture = 1,
179 .ops = &byt_cht_cx2072x_aif1_ops,
180 SND_SOC_DAILINK_REG(media, dummy, platform),
181 },
182 [MERR_DPCM_DEEP_BUFFER] = {
183 .name = "Deep-Buffer Audio Port",
184 .stream_name = "Deep-Buffer Audio",
185 .nonatomic = true,
186 .dynamic = 1,
187 .dpcm_playback = 1,
188 .ops = &byt_cht_cx2072x_aif1_ops,
189 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
190 },
191
192 {
193 .name = "SSP2-Codec",
194 .id = 0,
195 .no_pcm = 1,
196 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
197 | SND_SOC_DAIFMT_CBS_CFS,
198 .init = byt_cht_cx2072x_init,
199 .be_hw_params_fixup = byt_cht_cx2072x_fixup,
200 .nonatomic = true,
201 .dpcm_playback = 1,
202 .dpcm_capture = 1,
203 SND_SOC_DAILINK_REG(ssp2, cx2072x, platform),
204 },
205};
206
207
208static struct snd_soc_card byt_cht_cx2072x_card = {
209 .name = "bytcht-cx2072x",
210 .owner = THIS_MODULE,
211 .dai_link = byt_cht_cx2072x_dais,
212 .num_links = ARRAY_SIZE(byt_cht_cx2072x_dais),
213 .dapm_widgets = byt_cht_cx2072x_widgets,
214 .num_dapm_widgets = ARRAY_SIZE(byt_cht_cx2072x_widgets),
215 .dapm_routes = byt_cht_cx2072x_audio_map,
216 .num_dapm_routes = ARRAY_SIZE(byt_cht_cx2072x_audio_map),
217 .controls = byt_cht_cx2072x_controls,
218 .num_controls = ARRAY_SIZE(byt_cht_cx2072x_controls),
219};
220
221static char codec_name[SND_ACPI_I2C_ID_LEN];
222
223static int snd_byt_cht_cx2072x_probe(struct platform_device *pdev)
224{
225 struct snd_soc_acpi_mach *mach;
226 struct acpi_device *adev;
227 int dai_index = 0;
228 int i, ret;
229
230 byt_cht_cx2072x_card.dev = &pdev->dev;
231 mach = dev_get_platdata(&pdev->dev);
232
233
234 for (i = 0; i < ARRAY_SIZE(byt_cht_cx2072x_dais); i++) {
235 if (!strcmp(byt_cht_cx2072x_dais[i].codecs->name,
236 "i2c-14F10720:00")) {
237 dai_index = i;
238 break;
239 }
240 }
241
242
243 adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
244 if (adev) {
245 snprintf(codec_name, sizeof(codec_name), "i2c-%s",
246 acpi_dev_name(adev));
247 put_device(&adev->dev);
248 byt_cht_cx2072x_dais[dai_index].codecs->name = codec_name;
249 }
250
251
252 ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_cx2072x_card,
253 mach->mach_params.platform);
254 if (ret)
255 return ret;
256
257 return devm_snd_soc_register_card(&pdev->dev, &byt_cht_cx2072x_card);
258}
259
260static struct platform_driver snd_byt_cht_cx2072x_driver = {
261 .driver = {
262 .name = "bytcht_cx2072x",
263 },
264 .probe = snd_byt_cht_cx2072x_probe,
265};
266module_platform_driver(snd_byt_cht_cx2072x_driver);
267
268MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver");
269MODULE_LICENSE("GPL v2");
270MODULE_ALIAS("platform:bytcht_cx2072x");
271
