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19#include <linux/module.h>
20#include <linux/platform_device.h>
21#include <linux/slab.h>
22#include <sound/pcm.h>
23#include <sound/pcm_params.h>
24#include <sound/soc.h>
25#include "../codecs/rt5670.h"
26#include "sst-atom-controls.h"
27
28
29#define CHT_PLAT_CLK_3_HZ 19200000
30#define CHT_CODEC_DAI "rt5670-aif1"
31
32static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
33{
34 int i;
35
36 for (i = 0; i < card->num_rtd; i++) {
37 struct snd_soc_pcm_runtime *rtd;
38
39 rtd = card->rtd + i;
40 if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
41 strlen(CHT_CODEC_DAI)))
42 return rtd->codec_dai;
43 }
44 return NULL;
45}
46
47static int platform_clock_control(struct snd_soc_dapm_widget *w,
48 struct snd_kcontrol *k, int event)
49{
50 struct snd_soc_dapm_context *dapm = w->dapm;
51 struct snd_soc_card *card = dapm->card;
52 struct snd_soc_dai *codec_dai;
53
54 codec_dai = cht_get_codec_dai(card);
55 if (!codec_dai) {
56 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
57 return -EIO;
58 }
59
60 if (!SND_SOC_DAPM_EVENT_OFF(event))
61 return 0;
62
63
64
65
66
67
68 snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_RCCLK,
69 0, SND_SOC_CLOCK_IN);
70
71 return 0;
72}
73
74static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
75 SND_SOC_DAPM_HP("Headphone", NULL),
76 SND_SOC_DAPM_MIC("Headset Mic", NULL),
77 SND_SOC_DAPM_MIC("Int Mic", NULL),
78 SND_SOC_DAPM_SPK("Ext Spk", NULL),
79 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
80 platform_clock_control, SND_SOC_DAPM_POST_PMD),
81};
82
83static const struct snd_soc_dapm_route cht_audio_map[] = {
84 {"IN1P", NULL, "Headset Mic"},
85 {"IN1N", NULL, "Headset Mic"},
86 {"DMIC L1", NULL, "Int Mic"},
87 {"DMIC R1", NULL, "Int Mic"},
88 {"Headphone", NULL, "HPOL"},
89 {"Headphone", NULL, "HPOR"},
90 {"Ext Spk", NULL, "SPOLP"},
91 {"Ext Spk", NULL, "SPOLN"},
92 {"Ext Spk", NULL, "SPORP"},
93 {"Ext Spk", NULL, "SPORN"},
94 {"AIF1 Playback", NULL, "ssp2 Tx"},
95 {"ssp2 Tx", NULL, "codec_out0"},
96 {"ssp2 Tx", NULL, "codec_out1"},
97 {"codec_in0", NULL, "ssp2 Rx"},
98 {"codec_in1", NULL, "ssp2 Rx"},
99 {"ssp2 Rx", NULL, "AIF1 Capture"},
100 {"Headphone", NULL, "Platform Clock"},
101 {"Headset Mic", NULL, "Platform Clock"},
102 {"Int Mic", NULL, "Platform Clock"},
103 {"Ext Spk", NULL, "Platform Clock"},
104};
105
106static const struct snd_kcontrol_new cht_mc_controls[] = {
107 SOC_DAPM_PIN_SWITCH("Headphone"),
108 SOC_DAPM_PIN_SWITCH("Headset Mic"),
109 SOC_DAPM_PIN_SWITCH("Int Mic"),
110 SOC_DAPM_PIN_SWITCH("Ext Spk"),
111};
112
113static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
114 struct snd_pcm_hw_params *params)
115{
116 struct snd_soc_pcm_runtime *rtd = substream->private_data;
117 struct snd_soc_dai *codec_dai = rtd->codec_dai;
118 int ret;
119
120
121 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5670_PLL1_S_MCLK,
122 CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
123 if (ret < 0) {
124 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
125 return ret;
126 }
127
128
129 ret = snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_PLL1,
130 params_rate(params) * 512,
131 SND_SOC_CLOCK_IN);
132 if (ret < 0) {
133 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
134 return ret;
135 }
136 return 0;
137}
138
139static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
140{
141 int ret;
142 struct snd_soc_dai *codec_dai = runtime->codec_dai;
143
144
145 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24);
146 if (ret < 0) {
147 dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret);
148 return ret;
149 }
150
151 return 0;
152}
153
154static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
155 struct snd_pcm_hw_params *params)
156{
157 struct snd_interval *rate = hw_param_interval(params,
158 SNDRV_PCM_HW_PARAM_RATE);
159 struct snd_interval *channels = hw_param_interval(params,
160 SNDRV_PCM_HW_PARAM_CHANNELS);
161
162
163 rate->min = rate->max = 48000;
164 channels->min = channels->max = 2;
165
166
167 snd_mask_set(¶ms->masks[SNDRV_PCM_HW_PARAM_FORMAT -
168 SNDRV_PCM_HW_PARAM_FIRST_MASK],
169 SNDRV_PCM_FORMAT_S24_LE);
170 return 0;
171}
172
173static unsigned int rates_48000[] = {
174 48000,
175};
176
177static struct snd_pcm_hw_constraint_list constraints_48000 = {
178 .count = ARRAY_SIZE(rates_48000),
179 .list = rates_48000,
180};
181
182static int cht_aif1_startup(struct snd_pcm_substream *substream)
183{
184 return snd_pcm_hw_constraint_list(substream->runtime, 0,
185 SNDRV_PCM_HW_PARAM_RATE,
186 &constraints_48000);
187}
188
189static struct snd_soc_ops cht_aif1_ops = {
190 .startup = cht_aif1_startup,
191};
192
193static struct snd_soc_ops cht_be_ssp2_ops = {
194 .hw_params = cht_aif1_hw_params,
195};
196
197static struct snd_soc_dai_link cht_dailink[] = {
198
199 [MERR_DPCM_AUDIO] = {
200 .name = "Audio Port",
201 .stream_name = "Audio",
202 .cpu_dai_name = "media-cpu-dai",
203 .codec_dai_name = "snd-soc-dummy-dai",
204 .codec_name = "snd-soc-dummy",
205 .platform_name = "sst-mfld-platform",
206 .ignore_suspend = 1,
207 .dynamic = 1,
208 .dpcm_playback = 1,
209 .dpcm_capture = 1,
210 .ops = &cht_aif1_ops,
211 },
212 [MERR_DPCM_COMPR] = {
213 .name = "Compressed Port",
214 .stream_name = "Compress",
215 .cpu_dai_name = "compress-cpu-dai",
216 .codec_dai_name = "snd-soc-dummy-dai",
217 .codec_name = "snd-soc-dummy",
218 .platform_name = "sst-mfld-platform",
219 },
220
221
222 {
223
224 .name = "SSP2-Codec",
225 .be_id = 1,
226 .cpu_dai_name = "ssp2-port",
227 .platform_name = "sst-mfld-platform",
228 .no_pcm = 1,
229 .codec_dai_name = "rt5670-aif1",
230 .codec_name = "i2c-10EC5670:00",
231 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF
232 | SND_SOC_DAIFMT_CBS_CFS,
233 .init = cht_codec_init,
234 .be_hw_params_fixup = cht_codec_fixup,
235 .ignore_suspend = 1,
236 .dpcm_playback = 1,
237 .dpcm_capture = 1,
238 .ops = &cht_be_ssp2_ops,
239 },
240};
241
242
243static struct snd_soc_card snd_soc_card_cht = {
244 .name = "cherrytrailcraudio",
245 .dai_link = cht_dailink,
246 .num_links = ARRAY_SIZE(cht_dailink),
247 .dapm_widgets = cht_dapm_widgets,
248 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
249 .dapm_routes = cht_audio_map,
250 .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
251 .controls = cht_mc_controls,
252 .num_controls = ARRAY_SIZE(cht_mc_controls),
253};
254
255static int snd_cht_mc_probe(struct platform_device *pdev)
256{
257 int ret_val = 0;
258
259
260 snd_soc_card_cht.dev = &pdev->dev;
261 ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
262 if (ret_val) {
263 dev_err(&pdev->dev,
264 "snd_soc_register_card failed %d\n", ret_val);
265 return ret_val;
266 }
267 platform_set_drvdata(pdev, &snd_soc_card_cht);
268 return ret_val;
269}
270
271static struct platform_driver snd_cht_mc_driver = {
272 .driver = {
273 .owner = THIS_MODULE,
274 .name = "cht-bsw-rt5672",
275 .pm = &snd_soc_pm_ops,
276 },
277 .probe = snd_cht_mc_probe,
278};
279
280module_platform_driver(snd_cht_mc_driver);
281
282MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
283MODULE_AUTHOR("Subhransu S. Prusty, Mengdong Lin");
284MODULE_LICENSE("GPL v2");
285MODULE_ALIAS("platform:cht-bsw-rt5672");
286
