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22#include <linux/module.h>
23#include <linux/acpi.h>
24#include <linux/platform_device.h>
25#include <linux/slab.h>
26#include <asm/platform_sst_audio.h>
27#include <sound/pcm.h>
28#include <sound/pcm_params.h>
29#include <sound/soc.h>
30#include <sound/soc-acpi.h>
31#include "../../codecs/da7213.h"
32#include "../atom/sst-atom-controls.h"
33
34static const struct snd_kcontrol_new controls[] = {
35 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
36 SOC_DAPM_PIN_SWITCH("Headset Mic"),
37 SOC_DAPM_PIN_SWITCH("Mic"),
38 SOC_DAPM_PIN_SWITCH("Aux In"),
39};
40
41static const struct snd_soc_dapm_widget dapm_widgets[] = {
42 SND_SOC_DAPM_HP("Headphone Jack", NULL),
43 SND_SOC_DAPM_MIC("Headset Mic", NULL),
44 SND_SOC_DAPM_MIC("Mic", NULL),
45 SND_SOC_DAPM_LINE("Aux In", NULL),
46};
47
48static const struct snd_soc_dapm_route audio_map[] = {
49 {"Headphone Jack", NULL, "HPL"},
50 {"Headphone Jack", NULL, "HPR"},
51
52 {"AUXL", NULL, "Aux In"},
53 {"AUXR", NULL, "Aux In"},
54
55
56 {"MIC1", NULL, "Headset Mic"},
57 {"MIC2", NULL, "Mic"},
58
59
60 {"ssp2 Tx", NULL, "codec_out0"},
61 {"ssp2 Tx", NULL, "codec_out1"},
62 {"codec_in0", NULL, "ssp2 Rx"},
63 {"codec_in1", NULL, "ssp2 Rx"},
64
65 {"Playback", NULL, "ssp2 Tx"},
66 {"ssp2 Rx", NULL, "Capture"},
67};
68
69static int codec_fixup(struct snd_soc_pcm_runtime *rtd,
70 struct snd_pcm_hw_params *params)
71{
72 int ret;
73 struct snd_interval *rate = hw_param_interval(params,
74 SNDRV_PCM_HW_PARAM_RATE);
75 struct snd_interval *channels = hw_param_interval(params,
76 SNDRV_PCM_HW_PARAM_CHANNELS);
77
78
79 rate->min = rate->max = 48000;
80 channels->min = channels->max = 2;
81
82
83 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
84
85
86
87
88
89
90 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
91 SND_SOC_DAIFMT_I2S |
92 SND_SOC_DAIFMT_NB_NF |
93 SND_SOC_DAIFMT_CBS_CFS);
94 if (ret < 0) {
95 dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
96 return ret;
97 }
98
99 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
100 if (ret < 0) {
101 dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
102 return ret;
103 }
104
105 return 0;
106}
107
108static int aif1_startup(struct snd_pcm_substream *substream)
109{
110 return snd_pcm_hw_constraint_single(substream->runtime,
111 SNDRV_PCM_HW_PARAM_RATE, 48000);
112}
113
114static int aif1_hw_params(struct snd_pcm_substream *substream,
115 struct snd_pcm_hw_params *params)
116{
117 struct snd_soc_pcm_runtime *rtd = substream->private_data;
118 struct snd_soc_dai *codec_dai = rtd->codec_dai;
119 int ret;
120
121 ret = snd_soc_dai_set_sysclk(codec_dai, DA7213_CLKSRC_MCLK,
122 19200000, SND_SOC_CLOCK_IN);
123 if (ret < 0)
124 dev_err(codec_dai->dev, "can't set codec sysclk configuration\n");
125
126 ret = snd_soc_dai_set_pll(codec_dai, 0,
127 DA7213_SYSCLK_PLL_SRM, 0, DA7213_PLL_FREQ_OUT_98304000);
128 if (ret < 0) {
129 dev_err(codec_dai->dev, "failed to start PLL: %d\n", ret);
130 return -EIO;
131 }
132
133 return ret;
134}
135
136static int aif1_hw_free(struct snd_pcm_substream *substream)
137{
138 struct snd_soc_pcm_runtime *rtd = substream->private_data;
139 struct snd_soc_dai *codec_dai = rtd->codec_dai;
140 int ret;
141
142 ret = snd_soc_dai_set_pll(codec_dai, 0,
143 DA7213_SYSCLK_MCLK, 0, 0);
144 if (ret < 0) {
145 dev_err(codec_dai->dev, "failed to stop PLL: %d\n", ret);
146 return -EIO;
147 }
148
149 return ret;
150}
151
152static const struct snd_soc_ops aif1_ops = {
153 .startup = aif1_startup,
154};
155
156static const struct snd_soc_ops ssp2_ops = {
157 .hw_params = aif1_hw_params,
158 .hw_free = aif1_hw_free,
159
160};
161
162static struct snd_soc_dai_link dailink[] = {
163 [MERR_DPCM_AUDIO] = {
164 .name = "Audio Port",
165 .stream_name = "Audio",
166 .cpu_dai_name = "media-cpu-dai",
167 .codec_dai_name = "snd-soc-dummy-dai",
168 .codec_name = "snd-soc-dummy",
169 .platform_name = "sst-mfld-platform",
170 .nonatomic = true,
171 .dynamic = 1,
172 .dpcm_playback = 1,
173 .dpcm_capture = 1,
174 .ops = &aif1_ops,
175 },
176 [MERR_DPCM_DEEP_BUFFER] = {
177 .name = "Deep-Buffer Audio Port",
178 .stream_name = "Deep-Buffer Audio",
179 .cpu_dai_name = "deepbuffer-cpu-dai",
180 .codec_dai_name = "snd-soc-dummy-dai",
181 .codec_name = "snd-soc-dummy",
182 .platform_name = "sst-mfld-platform",
183 .nonatomic = true,
184 .dynamic = 1,
185 .dpcm_playback = 1,
186 .ops = &aif1_ops,
187 },
188
189
190 {
191 .name = "SSP2-Codec",
192 .id = 0,
193 .cpu_dai_name = "ssp2-port",
194 .platform_name = "sst-mfld-platform",
195 .no_pcm = 1,
196 .codec_dai_name = "da7213-hifi",
197 .codec_name = "i2c-DLGS7213:00",
198 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
199 | SND_SOC_DAIFMT_CBS_CFS,
200 .be_hw_params_fixup = codec_fixup,
201 .nonatomic = true,
202 .dpcm_playback = 1,
203 .dpcm_capture = 1,
204 .ops = &ssp2_ops,
205 },
206};
207
208
209static struct snd_soc_card bytcht_da7213_card = {
210 .name = "bytcht-da7213",
211 .owner = THIS_MODULE,
212 .dai_link = dailink,
213 .num_links = ARRAY_SIZE(dailink),
214 .controls = controls,
215 .num_controls = ARRAY_SIZE(controls),
216 .dapm_widgets = dapm_widgets,
217 .num_dapm_widgets = ARRAY_SIZE(dapm_widgets),
218 .dapm_routes = audio_map,
219 .num_dapm_routes = ARRAY_SIZE(audio_map),
220};
221
222static char codec_name[SND_ACPI_I2C_ID_LEN];
223
224static int bytcht_da7213_probe(struct platform_device *pdev)
225{
226 struct snd_soc_card *card;
227 struct snd_soc_acpi_mach *mach;
228 const char *i2c_name = NULL;
229 int dai_index = 0;
230 int ret_val = 0;
231 int i;
232
233 mach = (&pdev->dev)->platform_data;
234 card = &bytcht_da7213_card;
235 card->dev = &pdev->dev;
236
237
238 for (i = 0; i < ARRAY_SIZE(dailink); i++) {
239 if (!strcmp(dailink[i].codec_name, "i2c-DLGS7213:00")) {
240 dai_index = i;
241 break;
242 }
243 }
244
245
246 i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
247 if (i2c_name) {
248 snprintf(codec_name, sizeof(codec_name),
249 "%s%s", "i2c-", i2c_name);
250 dailink[dai_index].codec_name = codec_name;
251 }
252
253 ret_val = devm_snd_soc_register_card(&pdev->dev, card);
254 if (ret_val) {
255 dev_err(&pdev->dev,
256 "snd_soc_register_card failed %d\n", ret_val);
257 return ret_val;
258 }
259 platform_set_drvdata(pdev, card);
260 return ret_val;
261}
262
263static struct platform_driver bytcht_da7213_driver = {
264 .driver = {
265 .name = "bytcht_da7213",
266 },
267 .probe = bytcht_da7213_probe,
268};
269module_platform_driver(bytcht_da7213_driver);
270
271MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail+DA7213 Machine driver");
272MODULE_AUTHOR("Pierre-Louis Bossart");
273MODULE_LICENSE("GPL v2");
274MODULE_ALIAS("platform:bytcht_da7213");
275