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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> | |
c4ba51ba | 24 | #include <linux/acpi.h> |
e18acdc0 FY |
25 | #include <linux/platform_device.h> |
26 | #include <linux/slab.h> | |
27 | #include <sound/pcm.h> | |
28 | #include <sound/pcm_params.h> | |
29 | #include <sound/soc.h> | |
30 | #include <sound/jack.h> | |
e56c72d5 | 31 | #include "../../codecs/rt5645.h" |
b97169da | 32 | #include "../atom/sst-atom-controls.h" |
e18acdc0 FY |
33 | |
34 | #define CHT_PLAT_CLK_3_HZ 19200000 | |
35 | #define CHT_CODEC_DAI "rt5645-aif1" | |
36 | ||
c4ba51ba FY |
37 | struct cht_acpi_card { |
38 | char *codec_id; | |
39 | int codec_type; | |
40 | struct snd_soc_card *soc_card; | |
41 | }; | |
42 | ||
e18acdc0 | 43 | struct cht_mc_private { |
673c4f89 | 44 | struct snd_soc_jack jack; |
c4ba51ba | 45 | struct cht_acpi_card *acpi_card; |
e18acdc0 FY |
46 | }; |
47 | ||
48 | static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card) | |
49 | { | |
50 | int i; | |
51 | ||
52 | for (i = 0; i < card->num_rtd; i++) { | |
53 | struct snd_soc_pcm_runtime *rtd; | |
54 | ||
55 | rtd = card->rtd + i; | |
56 | if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI, | |
57 | strlen(CHT_CODEC_DAI))) | |
58 | return rtd->codec_dai; | |
59 | } | |
60 | return NULL; | |
61 | } | |
62 | ||
63 | static int platform_clock_control(struct snd_soc_dapm_widget *w, | |
64 | struct snd_kcontrol *k, int event) | |
65 | { | |
66 | struct snd_soc_dapm_context *dapm = w->dapm; | |
67 | struct snd_soc_card *card = dapm->card; | |
68 | struct snd_soc_dai *codec_dai; | |
69 | int ret; | |
70 | ||
71 | codec_dai = cht_get_codec_dai(card); | |
72 | if (!codec_dai) { | |
73 | dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n"); | |
74 | return -EIO; | |
75 | } | |
76 | ||
77 | if (!SND_SOC_DAPM_EVENT_OFF(event)) | |
78 | return 0; | |
79 | ||
80 | /* Set codec sysclk source to its internal clock because codec PLL will | |
81 | * be off when idle and MCLK will also be off by ACPI when codec is | |
82 | * runtime suspended. Codec needs clock for jack detection and button | |
83 | * press. | |
84 | */ | |
85 | ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK, | |
86 | 0, SND_SOC_CLOCK_IN); | |
87 | if (ret < 0) { | |
88 | dev_err(card->dev, "can't set codec sysclk: %d\n", ret); | |
89 | return ret; | |
90 | } | |
91 | ||
92 | return 0; | |
93 | } | |
94 | ||
95 | static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { | |
96 | SND_SOC_DAPM_HP("Headphone", NULL), | |
97 | SND_SOC_DAPM_MIC("Headset Mic", NULL), | |
98 | SND_SOC_DAPM_MIC("Int Mic", NULL), | |
99 | SND_SOC_DAPM_SPK("Ext Spk", NULL), | |
100 | SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, | |
101 | platform_clock_control, SND_SOC_DAPM_POST_PMD), | |
102 | }; | |
103 | ||
c4ba51ba | 104 | static const struct snd_soc_dapm_route cht_rt5645_audio_map[] = { |
e18acdc0 FY |
105 | {"IN1P", NULL, "Headset Mic"}, |
106 | {"IN1N", NULL, "Headset Mic"}, | |
107 | {"DMIC L1", NULL, "Int Mic"}, | |
108 | {"DMIC R1", NULL, "Int Mic"}, | |
109 | {"Headphone", NULL, "HPOL"}, | |
110 | {"Headphone", NULL, "HPOR"}, | |
111 | {"Ext Spk", NULL, "SPOL"}, | |
112 | {"Ext Spk", NULL, "SPOR"}, | |
113 | {"AIF1 Playback", NULL, "ssp2 Tx"}, | |
114 | {"ssp2 Tx", NULL, "codec_out0"}, | |
115 | {"ssp2 Tx", NULL, "codec_out1"}, | |
116 | {"codec_in0", NULL, "ssp2 Rx" }, | |
117 | {"codec_in1", NULL, "ssp2 Rx" }, | |
118 | {"ssp2 Rx", NULL, "AIF1 Capture"}, | |
119 | {"Headphone", NULL, "Platform Clock"}, | |
120 | {"Headset Mic", NULL, "Platform Clock"}, | |
121 | {"Int Mic", NULL, "Platform Clock"}, | |
122 | {"Ext Spk", NULL, "Platform Clock"}, | |
123 | }; | |
124 | ||
c4ba51ba FY |
125 | static const struct snd_soc_dapm_route cht_rt5650_audio_map[] = { |
126 | {"IN1P", NULL, "Headset Mic"}, | |
127 | {"IN1N", NULL, "Headset Mic"}, | |
128 | {"DMIC L2", NULL, "Int Mic"}, | |
129 | {"DMIC R2", NULL, "Int Mic"}, | |
130 | {"Headphone", NULL, "HPOL"}, | |
131 | {"Headphone", NULL, "HPOR"}, | |
132 | {"Ext Spk", NULL, "SPOL"}, | |
133 | {"Ext Spk", NULL, "SPOR"}, | |
134 | {"AIF1 Playback", NULL, "ssp2 Tx"}, | |
135 | {"ssp2 Tx", NULL, "codec_out0"}, | |
136 | {"ssp2 Tx", NULL, "codec_out1"}, | |
137 | {"codec_in0", NULL, "ssp2 Rx" }, | |
138 | {"codec_in1", NULL, "ssp2 Rx" }, | |
139 | {"ssp2 Rx", NULL, "AIF1 Capture"}, | |
140 | {"Headphone", NULL, "Platform Clock"}, | |
141 | {"Headset Mic", NULL, "Platform Clock"}, | |
142 | {"Int Mic", NULL, "Platform Clock"}, | |
143 | {"Ext Spk", NULL, "Platform Clock"}, | |
144 | }; | |
145 | ||
e18acdc0 FY |
146 | static const struct snd_kcontrol_new cht_mc_controls[] = { |
147 | SOC_DAPM_PIN_SWITCH("Headphone"), | |
148 | SOC_DAPM_PIN_SWITCH("Headset Mic"), | |
149 | SOC_DAPM_PIN_SWITCH("Int Mic"), | |
150 | SOC_DAPM_PIN_SWITCH("Ext Spk"), | |
151 | }; | |
152 | ||
153 | static int cht_aif1_hw_params(struct snd_pcm_substream *substream, | |
154 | struct snd_pcm_hw_params *params) | |
155 | { | |
156 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
157 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
158 | int ret; | |
159 | ||
160 | /* set codec PLL source to the 19.2MHz platform clock (MCLK) */ | |
161 | ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK, | |
162 | CHT_PLAT_CLK_3_HZ, params_rate(params) * 512); | |
163 | if (ret < 0) { | |
164 | dev_err(rtd->dev, "can't set codec pll: %d\n", ret); | |
165 | return ret; | |
166 | } | |
167 | ||
168 | ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1, | |
169 | params_rate(params) * 512, SND_SOC_CLOCK_IN); | |
170 | if (ret < 0) { | |
171 | dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); | |
172 | return ret; | |
173 | } | |
174 | ||
175 | return 0; | |
176 | } | |
177 | ||
178 | static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) | |
179 | { | |
180 | int ret; | |
673c4f89 | 181 | int jack_type; |
e18acdc0 FY |
182 | struct snd_soc_codec *codec = runtime->codec; |
183 | struct snd_soc_dai *codec_dai = runtime->codec_dai; | |
184 | struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); | |
185 | ||
186 | /* Select clk_i2s1_asrc as ASRC clock source */ | |
187 | rt5645_sel_asrc_clk_src(codec, | |
188 | RT5645_DA_STEREO_FILTER | | |
189 | RT5645_DA_MONO_L_FILTER | | |
190 | RT5645_DA_MONO_R_FILTER | | |
191 | RT5645_AD_STEREO_FILTER, | |
192 | RT5645_CLK_SEL_I2S1_ASRC); | |
193 | ||
194 | /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ | |
195 | ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24); | |
196 | if (ret < 0) { | |
197 | dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret); | |
198 | return ret; | |
199 | } | |
200 | ||
673c4f89 FY |
201 | if (ctx->acpi_card->codec_type == CODEC_TYPE_RT5650) |
202 | jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | | |
203 | SND_JACK_BTN_0 | SND_JACK_BTN_1 | | |
204 | SND_JACK_BTN_2 | SND_JACK_BTN_3; | |
205 | else | |
206 | jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; | |
e18acdc0 | 207 | |
673c4f89 FY |
208 | ret = snd_soc_card_jack_new(runtime->card, "Headset Jack", |
209 | jack_type, &ctx->jack, | |
fb1edb4b | 210 | NULL, 0); |
e18acdc0 | 211 | if (ret) { |
673c4f89 | 212 | dev_err(runtime->dev, "Headset jack creation failed %d\n", ret); |
e18acdc0 FY |
213 | return ret; |
214 | } | |
215 | ||
673c4f89 | 216 | rt5645_set_jack_detect(codec, &ctx->jack, &ctx->jack, &ctx->jack); |
e18acdc0 FY |
217 | |
218 | return ret; | |
219 | } | |
220 | ||
221 | static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, | |
222 | struct snd_pcm_hw_params *params) | |
223 | { | |
224 | struct snd_interval *rate = hw_param_interval(params, | |
225 | SNDRV_PCM_HW_PARAM_RATE); | |
226 | struct snd_interval *channels = hw_param_interval(params, | |
227 | SNDRV_PCM_HW_PARAM_CHANNELS); | |
228 | ||
229 | /* The DSP will covert the FE rate to 48k, stereo, 24bits */ | |
230 | rate->min = rate->max = 48000; | |
231 | channels->min = channels->max = 2; | |
232 | ||
233 | /* set SSP2 to 24-bit */ | |
369a9f5f | 234 | params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); |
e18acdc0 FY |
235 | return 0; |
236 | } | |
237 | ||
238 | static unsigned int rates_48000[] = { | |
239 | 48000, | |
240 | }; | |
241 | ||
242 | static struct snd_pcm_hw_constraint_list constraints_48000 = { | |
243 | .count = ARRAY_SIZE(rates_48000), | |
244 | .list = rates_48000, | |
245 | }; | |
246 | ||
247 | static int cht_aif1_startup(struct snd_pcm_substream *substream) | |
248 | { | |
249 | return snd_pcm_hw_constraint_list(substream->runtime, 0, | |
250 | SNDRV_PCM_HW_PARAM_RATE, | |
251 | &constraints_48000); | |
252 | } | |
253 | ||
254 | static struct snd_soc_ops cht_aif1_ops = { | |
255 | .startup = cht_aif1_startup, | |
256 | }; | |
257 | ||
258 | static struct snd_soc_ops cht_be_ssp2_ops = { | |
259 | .hw_params = cht_aif1_hw_params, | |
260 | }; | |
261 | ||
262 | static struct snd_soc_dai_link cht_dailink[] = { | |
263 | [MERR_DPCM_AUDIO] = { | |
264 | .name = "Audio Port", | |
265 | .stream_name = "Audio", | |
266 | .cpu_dai_name = "media-cpu-dai", | |
267 | .codec_dai_name = "snd-soc-dummy-dai", | |
268 | .codec_name = "snd-soc-dummy", | |
269 | .platform_name = "sst-mfld-platform", | |
c4ba51ba | 270 | .nonatomic = true, |
e18acdc0 FY |
271 | .dynamic = 1, |
272 | .dpcm_playback = 1, | |
273 | .dpcm_capture = 1, | |
274 | .ops = &cht_aif1_ops, | |
275 | }, | |
276 | [MERR_DPCM_COMPR] = { | |
277 | .name = "Compressed Port", | |
278 | .stream_name = "Compress", | |
279 | .cpu_dai_name = "compress-cpu-dai", | |
280 | .codec_dai_name = "snd-soc-dummy-dai", | |
281 | .codec_name = "snd-soc-dummy", | |
282 | .platform_name = "sst-mfld-platform", | |
283 | }, | |
284 | /* CODEC<->CODEC link */ | |
285 | /* back ends */ | |
286 | { | |
287 | .name = "SSP2-Codec", | |
288 | .be_id = 1, | |
289 | .cpu_dai_name = "ssp2-port", | |
290 | .platform_name = "sst-mfld-platform", | |
291 | .no_pcm = 1, | |
292 | .codec_dai_name = "rt5645-aif1", | |
293 | .codec_name = "i2c-10EC5645:00", | |
294 | .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF | |
295 | | SND_SOC_DAIFMT_CBS_CFS, | |
296 | .init = cht_codec_init, | |
297 | .be_hw_params_fixup = cht_codec_fixup, | |
c4ba51ba | 298 | .nonatomic = true, |
e18acdc0 FY |
299 | .dpcm_playback = 1, |
300 | .dpcm_capture = 1, | |
301 | .ops = &cht_be_ssp2_ops, | |
302 | }, | |
303 | }; | |
304 | ||
305 | /* SoC card */ | |
c4ba51ba | 306 | static struct snd_soc_card snd_soc_card_chtrt5645 = { |
e18acdc0 FY |
307 | .name = "chtrt5645", |
308 | .dai_link = cht_dailink, | |
309 | .num_links = ARRAY_SIZE(cht_dailink), | |
310 | .dapm_widgets = cht_dapm_widgets, | |
311 | .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), | |
c4ba51ba FY |
312 | .dapm_routes = cht_rt5645_audio_map, |
313 | .num_dapm_routes = ARRAY_SIZE(cht_rt5645_audio_map), | |
e18acdc0 FY |
314 | .controls = cht_mc_controls, |
315 | .num_controls = ARRAY_SIZE(cht_mc_controls), | |
316 | }; | |
317 | ||
c4ba51ba FY |
318 | static struct snd_soc_card snd_soc_card_chtrt5650 = { |
319 | .name = "chtrt5650", | |
320 | .dai_link = cht_dailink, | |
321 | .num_links = ARRAY_SIZE(cht_dailink), | |
322 | .dapm_widgets = cht_dapm_widgets, | |
323 | .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), | |
324 | .dapm_routes = cht_rt5650_audio_map, | |
325 | .num_dapm_routes = ARRAY_SIZE(cht_rt5650_audio_map), | |
326 | .controls = cht_mc_controls, | |
327 | .num_controls = ARRAY_SIZE(cht_mc_controls), | |
328 | }; | |
329 | ||
330 | static struct cht_acpi_card snd_soc_cards[] = { | |
331 | {"10EC5645", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645}, | |
332 | {"10EC5650", CODEC_TYPE_RT5650, &snd_soc_card_chtrt5650}, | |
333 | }; | |
334 | ||
335 | static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level, | |
336 | void *context, void **ret) | |
337 | { | |
338 | *(bool *)context = true; | |
339 | return AE_OK; | |
340 | } | |
341 | ||
e18acdc0 FY |
342 | static int snd_cht_mc_probe(struct platform_device *pdev) |
343 | { | |
344 | int ret_val = 0; | |
c4ba51ba | 345 | int i; |
e18acdc0 | 346 | struct cht_mc_private *drv; |
c4ba51ba FY |
347 | struct snd_soc_card *card = snd_soc_cards[0].soc_card; |
348 | bool found = false; | |
349 | char codec_name[16]; | |
e18acdc0 FY |
350 | |
351 | drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC); | |
352 | if (!drv) | |
353 | return -ENOMEM; | |
354 | ||
c4ba51ba FY |
355 | for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) { |
356 | if (ACPI_SUCCESS(acpi_get_devices( | |
357 | snd_soc_cards[i].codec_id, | |
358 | snd_acpi_codec_match, | |
359 | &found, NULL)) && found) { | |
360 | dev_dbg(&pdev->dev, | |
361 | "found codec %s\n", snd_soc_cards[i].codec_id); | |
362 | card = snd_soc_cards[i].soc_card; | |
363 | drv->acpi_card = &snd_soc_cards[i]; | |
364 | break; | |
365 | } | |
366 | } | |
367 | card->dev = &pdev->dev; | |
368 | sprintf(codec_name, "i2c-%s:00", drv->acpi_card->codec_id); | |
369 | /* set correct codec name */ | |
370 | strcpy((char *)card->dai_link[2].codec_name, codec_name); | |
371 | snd_soc_card_set_drvdata(card, drv); | |
372 | ret_val = devm_snd_soc_register_card(&pdev->dev, card); | |
e18acdc0 FY |
373 | if (ret_val) { |
374 | dev_err(&pdev->dev, | |
375 | "snd_soc_register_card failed %d\n", ret_val); | |
376 | return ret_val; | |
377 | } | |
c4ba51ba | 378 | platform_set_drvdata(pdev, card); |
e18acdc0 FY |
379 | return ret_val; |
380 | } | |
381 | ||
382 | static struct platform_driver snd_cht_mc_driver = { | |
383 | .driver = { | |
e18acdc0 | 384 | .name = "cht-bsw-rt5645", |
e18acdc0 FY |
385 | }, |
386 | .probe = snd_cht_mc_probe, | |
387 | }; | |
388 | ||
389 | module_platform_driver(snd_cht_mc_driver) | |
390 | ||
391 | MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); | |
392 | MODULE_AUTHOR("Fang, Yang A,N,Harshapriya"); | |
393 | MODULE_LICENSE("GPL v2"); | |
394 | MODULE_ALIAS("platform:cht-bsw-rt5645"); |