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e18acdc0 FY |
1 | /* |
2 | * cht-bsw-rt5645.c - ASoc Machine driver for Intel Cherryview-based platforms | |
3 | * Cherrytrail and Braswell, with RT5645 codec. | |
4 | * | |
5 | * Copyright (C) 2015 Intel Corp | |
6 | * Author: Fang, Yang A <yang.a.fang@intel.com> | |
7 | * N,Harshapriya <harshapriya.n@intel.com> | |
8 | * This file is modified from cht_bsw_rt5672.c | |
9 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; version 2 of the License. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, but | |
16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
21 | */ | |
22 | ||
23 | #include <linux/module.h> | |
24 | #include <linux/platform_device.h> | |
25 | #include <linux/slab.h> | |
26 | #include <sound/pcm.h> | |
27 | #include <sound/pcm_params.h> | |
28 | #include <sound/soc.h> | |
29 | #include <sound/jack.h> | |
30 | #include "../codecs/rt5645.h" | |
31 | #include "sst-atom-controls.h" | |
32 | ||
33 | #define CHT_PLAT_CLK_3_HZ 19200000 | |
34 | #define CHT_CODEC_DAI "rt5645-aif1" | |
35 | ||
36 | struct cht_mc_private { | |
37 | struct snd_soc_jack hp_jack; | |
38 | struct snd_soc_jack mic_jack; | |
39 | }; | |
40 | ||
41 | static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card) | |
42 | { | |
43 | int i; | |
44 | ||
45 | for (i = 0; i < card->num_rtd; i++) { | |
46 | struct snd_soc_pcm_runtime *rtd; | |
47 | ||
48 | rtd = card->rtd + i; | |
49 | if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI, | |
50 | strlen(CHT_CODEC_DAI))) | |
51 | return rtd->codec_dai; | |
52 | } | |
53 | return NULL; | |
54 | } | |
55 | ||
56 | static int platform_clock_control(struct snd_soc_dapm_widget *w, | |
57 | struct snd_kcontrol *k, int event) | |
58 | { | |
59 | struct snd_soc_dapm_context *dapm = w->dapm; | |
60 | struct snd_soc_card *card = dapm->card; | |
61 | struct snd_soc_dai *codec_dai; | |
62 | int ret; | |
63 | ||
64 | codec_dai = cht_get_codec_dai(card); | |
65 | if (!codec_dai) { | |
66 | dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n"); | |
67 | return -EIO; | |
68 | } | |
69 | ||
70 | if (!SND_SOC_DAPM_EVENT_OFF(event)) | |
71 | return 0; | |
72 | ||
73 | /* Set codec sysclk source to its internal clock because codec PLL will | |
74 | * be off when idle and MCLK will also be off by ACPI when codec is | |
75 | * runtime suspended. Codec needs clock for jack detection and button | |
76 | * press. | |
77 | */ | |
78 | ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK, | |
79 | 0, SND_SOC_CLOCK_IN); | |
80 | if (ret < 0) { | |
81 | dev_err(card->dev, "can't set codec sysclk: %d\n", ret); | |
82 | return ret; | |
83 | } | |
84 | ||
85 | return 0; | |
86 | } | |
87 | ||
88 | static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { | |
89 | SND_SOC_DAPM_HP("Headphone", NULL), | |
90 | SND_SOC_DAPM_MIC("Headset Mic", NULL), | |
91 | SND_SOC_DAPM_MIC("Int Mic", NULL), | |
92 | SND_SOC_DAPM_SPK("Ext Spk", NULL), | |
93 | SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, | |
94 | platform_clock_control, SND_SOC_DAPM_POST_PMD), | |
95 | }; | |
96 | ||
97 | static const struct snd_soc_dapm_route cht_audio_map[] = { | |
98 | {"IN1P", NULL, "Headset Mic"}, | |
99 | {"IN1N", NULL, "Headset Mic"}, | |
100 | {"DMIC L1", NULL, "Int Mic"}, | |
101 | {"DMIC R1", NULL, "Int Mic"}, | |
102 | {"Headphone", NULL, "HPOL"}, | |
103 | {"Headphone", NULL, "HPOR"}, | |
104 | {"Ext Spk", NULL, "SPOL"}, | |
105 | {"Ext Spk", NULL, "SPOR"}, | |
106 | {"AIF1 Playback", NULL, "ssp2 Tx"}, | |
107 | {"ssp2 Tx", NULL, "codec_out0"}, | |
108 | {"ssp2 Tx", NULL, "codec_out1"}, | |
109 | {"codec_in0", NULL, "ssp2 Rx" }, | |
110 | {"codec_in1", NULL, "ssp2 Rx" }, | |
111 | {"ssp2 Rx", NULL, "AIF1 Capture"}, | |
112 | {"Headphone", NULL, "Platform Clock"}, | |
113 | {"Headset Mic", NULL, "Platform Clock"}, | |
114 | {"Int Mic", NULL, "Platform Clock"}, | |
115 | {"Ext Spk", NULL, "Platform Clock"}, | |
116 | }; | |
117 | ||
118 | static const struct snd_kcontrol_new cht_mc_controls[] = { | |
119 | SOC_DAPM_PIN_SWITCH("Headphone"), | |
120 | SOC_DAPM_PIN_SWITCH("Headset Mic"), | |
121 | SOC_DAPM_PIN_SWITCH("Int Mic"), | |
122 | SOC_DAPM_PIN_SWITCH("Ext Spk"), | |
123 | }; | |
124 | ||
125 | static int cht_aif1_hw_params(struct snd_pcm_substream *substream, | |
126 | struct snd_pcm_hw_params *params) | |
127 | { | |
128 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
129 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
130 | int ret; | |
131 | ||
132 | /* set codec PLL source to the 19.2MHz platform clock (MCLK) */ | |
133 | ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK, | |
134 | CHT_PLAT_CLK_3_HZ, params_rate(params) * 512); | |
135 | if (ret < 0) { | |
136 | dev_err(rtd->dev, "can't set codec pll: %d\n", ret); | |
137 | return ret; | |
138 | } | |
139 | ||
140 | ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1, | |
141 | params_rate(params) * 512, SND_SOC_CLOCK_IN); | |
142 | if (ret < 0) { | |
143 | dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); | |
144 | return ret; | |
145 | } | |
146 | ||
147 | return 0; | |
148 | } | |
149 | ||
150 | static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) | |
151 | { | |
152 | int ret; | |
153 | struct snd_soc_codec *codec = runtime->codec; | |
154 | struct snd_soc_dai *codec_dai = runtime->codec_dai; | |
155 | struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); | |
156 | ||
157 | /* Select clk_i2s1_asrc as ASRC clock source */ | |
158 | rt5645_sel_asrc_clk_src(codec, | |
159 | RT5645_DA_STEREO_FILTER | | |
160 | RT5645_DA_MONO_L_FILTER | | |
161 | RT5645_DA_MONO_R_FILTER | | |
162 | RT5645_AD_STEREO_FILTER, | |
163 | RT5645_CLK_SEL_I2S1_ASRC); | |
164 | ||
165 | /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ | |
166 | ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24); | |
167 | if (ret < 0) { | |
168 | dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret); | |
169 | return ret; | |
170 | } | |
171 | ||
fb1edb4b LPC |
172 | ret = snd_soc_card_jack_new(runtime->card, "Headphone Jack", |
173 | SND_JACK_HEADPHONE, &ctx->hp_jack, | |
174 | NULL, 0); | |
e18acdc0 FY |
175 | if (ret) { |
176 | dev_err(runtime->dev, "HP jack creation failed %d\n", ret); | |
177 | return ret; | |
178 | } | |
179 | ||
fb1edb4b LPC |
180 | ret = snd_soc_card_jack_new(runtime->card, "Mic Jack", |
181 | SND_JACK_MICROPHONE, &ctx->mic_jack, | |
182 | NULL, 0); | |
e18acdc0 FY |
183 | if (ret) { |
184 | dev_err(runtime->dev, "Mic jack creation failed %d\n", ret); | |
185 | return ret; | |
186 | } | |
187 | ||
188 | rt5645_set_jack_detect(codec, &ctx->hp_jack, &ctx->mic_jack); | |
189 | ||
190 | return ret; | |
191 | } | |
192 | ||
193 | static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, | |
194 | struct snd_pcm_hw_params *params) | |
195 | { | |
196 | struct snd_interval *rate = hw_param_interval(params, | |
197 | SNDRV_PCM_HW_PARAM_RATE); | |
198 | struct snd_interval *channels = hw_param_interval(params, | |
199 | SNDRV_PCM_HW_PARAM_CHANNELS); | |
200 | ||
201 | /* The DSP will covert the FE rate to 48k, stereo, 24bits */ | |
202 | rate->min = rate->max = 48000; | |
203 | channels->min = channels->max = 2; | |
204 | ||
205 | /* set SSP2 to 24-bit */ | |
369a9f5f | 206 | params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); |
e18acdc0 FY |
207 | return 0; |
208 | } | |
209 | ||
210 | static unsigned int rates_48000[] = { | |
211 | 48000, | |
212 | }; | |
213 | ||
214 | static struct snd_pcm_hw_constraint_list constraints_48000 = { | |
215 | .count = ARRAY_SIZE(rates_48000), | |
216 | .list = rates_48000, | |
217 | }; | |
218 | ||
219 | static int cht_aif1_startup(struct snd_pcm_substream *substream) | |
220 | { | |
221 | return snd_pcm_hw_constraint_list(substream->runtime, 0, | |
222 | SNDRV_PCM_HW_PARAM_RATE, | |
223 | &constraints_48000); | |
224 | } | |
225 | ||
226 | static struct snd_soc_ops cht_aif1_ops = { | |
227 | .startup = cht_aif1_startup, | |
228 | }; | |
229 | ||
230 | static struct snd_soc_ops cht_be_ssp2_ops = { | |
231 | .hw_params = cht_aif1_hw_params, | |
232 | }; | |
233 | ||
234 | static struct snd_soc_dai_link cht_dailink[] = { | |
235 | [MERR_DPCM_AUDIO] = { | |
236 | .name = "Audio Port", | |
237 | .stream_name = "Audio", | |
238 | .cpu_dai_name = "media-cpu-dai", | |
239 | .codec_dai_name = "snd-soc-dummy-dai", | |
240 | .codec_name = "snd-soc-dummy", | |
241 | .platform_name = "sst-mfld-platform", | |
242 | .ignore_suspend = 1, | |
243 | .dynamic = 1, | |
244 | .dpcm_playback = 1, | |
245 | .dpcm_capture = 1, | |
246 | .ops = &cht_aif1_ops, | |
247 | }, | |
248 | [MERR_DPCM_COMPR] = { | |
249 | .name = "Compressed Port", | |
250 | .stream_name = "Compress", | |
251 | .cpu_dai_name = "compress-cpu-dai", | |
252 | .codec_dai_name = "snd-soc-dummy-dai", | |
253 | .codec_name = "snd-soc-dummy", | |
254 | .platform_name = "sst-mfld-platform", | |
255 | }, | |
256 | /* CODEC<->CODEC link */ | |
257 | /* back ends */ | |
258 | { | |
259 | .name = "SSP2-Codec", | |
260 | .be_id = 1, | |
261 | .cpu_dai_name = "ssp2-port", | |
262 | .platform_name = "sst-mfld-platform", | |
263 | .no_pcm = 1, | |
264 | .codec_dai_name = "rt5645-aif1", | |
265 | .codec_name = "i2c-10EC5645:00", | |
266 | .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF | |
267 | | SND_SOC_DAIFMT_CBS_CFS, | |
268 | .init = cht_codec_init, | |
269 | .be_hw_params_fixup = cht_codec_fixup, | |
270 | .ignore_suspend = 1, | |
271 | .dpcm_playback = 1, | |
272 | .dpcm_capture = 1, | |
273 | .ops = &cht_be_ssp2_ops, | |
274 | }, | |
275 | }; | |
276 | ||
277 | /* SoC card */ | |
278 | static struct snd_soc_card snd_soc_card_cht = { | |
279 | .name = "chtrt5645", | |
280 | .dai_link = cht_dailink, | |
281 | .num_links = ARRAY_SIZE(cht_dailink), | |
282 | .dapm_widgets = cht_dapm_widgets, | |
283 | .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), | |
284 | .dapm_routes = cht_audio_map, | |
285 | .num_dapm_routes = ARRAY_SIZE(cht_audio_map), | |
286 | .controls = cht_mc_controls, | |
287 | .num_controls = ARRAY_SIZE(cht_mc_controls), | |
288 | }; | |
289 | ||
290 | static int snd_cht_mc_probe(struct platform_device *pdev) | |
291 | { | |
292 | int ret_val = 0; | |
293 | struct cht_mc_private *drv; | |
294 | ||
295 | drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); | |
296 | if (!drv) | |
297 | return -ENOMEM; | |
298 | ||
299 | snd_soc_card_cht.dev = &pdev->dev; | |
300 | snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); | |
301 | ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht); | |
302 | if (ret_val) { | |
303 | dev_err(&pdev->dev, | |
304 | "snd_soc_register_card failed %d\n", ret_val); | |
305 | return ret_val; | |
306 | } | |
307 | platform_set_drvdata(pdev, &snd_soc_card_cht); | |
308 | return ret_val; | |
309 | } | |
310 | ||
311 | static struct platform_driver snd_cht_mc_driver = { | |
312 | .driver = { | |
e18acdc0 FY |
313 | .name = "cht-bsw-rt5645", |
314 | .pm = &snd_soc_pm_ops, | |
315 | }, | |
316 | .probe = snd_cht_mc_probe, | |
317 | }; | |
318 | ||
319 | module_platform_driver(snd_cht_mc_driver) | |
320 | ||
321 | MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); | |
322 | MODULE_AUTHOR("Fang, Yang A,N,Harshapriya"); | |
323 | MODULE_LICENSE("GPL v2"); | |
324 | MODULE_ALIAS("platform:cht-bsw-rt5645"); |