Merge tag 'firewire-update' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
[deliverable/linux.git] / sound / soc / intel / boards / cht_bsw_rt5645.c
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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>
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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"
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33
34#define CHT_PLAT_CLK_3_HZ 19200000
35#define CHT_CODEC_DAI "rt5645-aif1"
36
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37struct cht_acpi_card {
38 char *codec_id;
39 int codec_type;
40 struct snd_soc_card *soc_card;
41};
42
e18acdc0 43struct cht_mc_private {
673c4f89 44 struct snd_soc_jack jack;
c4ba51ba 45 struct cht_acpi_card *acpi_card;
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46};
47
48static 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
63static 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
95static 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 104static const struct snd_soc_dapm_route cht_rt5645_audio_map[] = {
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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
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125static 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
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146static 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
153static 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
178static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
179{
180 int ret;
673c4f89 181 int jack_type;
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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
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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
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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);
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213 return ret;
214 }
215
673c4f89 216 rt5645_set_jack_detect(codec, &ctx->jack, &ctx->jack, &ctx->jack);
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217
218 return ret;
219}
220
221static 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);
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235 return 0;
236}
237
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238static int cht_aif1_startup(struct snd_pcm_substream *substream)
239{
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240 return snd_pcm_hw_constraint_single(substream->runtime,
241 SNDRV_PCM_HW_PARAM_RATE, 48000);
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242}
243
244static struct snd_soc_ops cht_aif1_ops = {
245 .startup = cht_aif1_startup,
246};
247
248static struct snd_soc_ops cht_be_ssp2_ops = {
249 .hw_params = cht_aif1_hw_params,
250};
251
252static struct snd_soc_dai_link cht_dailink[] = {
253 [MERR_DPCM_AUDIO] = {
254 .name = "Audio Port",
255 .stream_name = "Audio",
256 .cpu_dai_name = "media-cpu-dai",
257 .codec_dai_name = "snd-soc-dummy-dai",
258 .codec_name = "snd-soc-dummy",
259 .platform_name = "sst-mfld-platform",
c4ba51ba 260 .nonatomic = true,
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261 .dynamic = 1,
262 .dpcm_playback = 1,
263 .dpcm_capture = 1,
264 .ops = &cht_aif1_ops,
265 },
266 [MERR_DPCM_COMPR] = {
267 .name = "Compressed Port",
268 .stream_name = "Compress",
269 .cpu_dai_name = "compress-cpu-dai",
270 .codec_dai_name = "snd-soc-dummy-dai",
271 .codec_name = "snd-soc-dummy",
272 .platform_name = "sst-mfld-platform",
273 },
274 /* CODEC<->CODEC link */
275 /* back ends */
276 {
277 .name = "SSP2-Codec",
278 .be_id = 1,
279 .cpu_dai_name = "ssp2-port",
280 .platform_name = "sst-mfld-platform",
281 .no_pcm = 1,
282 .codec_dai_name = "rt5645-aif1",
283 .codec_name = "i2c-10EC5645:00",
284 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF
285 | SND_SOC_DAIFMT_CBS_CFS,
286 .init = cht_codec_init,
287 .be_hw_params_fixup = cht_codec_fixup,
c4ba51ba 288 .nonatomic = true,
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289 .dpcm_playback = 1,
290 .dpcm_capture = 1,
291 .ops = &cht_be_ssp2_ops,
292 },
293};
294
295/* SoC card */
c4ba51ba 296static struct snd_soc_card snd_soc_card_chtrt5645 = {
e18acdc0 297 .name = "chtrt5645",
54d8697f 298 .owner = THIS_MODULE,
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299 .dai_link = cht_dailink,
300 .num_links = ARRAY_SIZE(cht_dailink),
301 .dapm_widgets = cht_dapm_widgets,
302 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
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303 .dapm_routes = cht_rt5645_audio_map,
304 .num_dapm_routes = ARRAY_SIZE(cht_rt5645_audio_map),
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305 .controls = cht_mc_controls,
306 .num_controls = ARRAY_SIZE(cht_mc_controls),
307};
308
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309static struct snd_soc_card snd_soc_card_chtrt5650 = {
310 .name = "chtrt5650",
54d8697f 311 .owner = THIS_MODULE,
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312 .dai_link = cht_dailink,
313 .num_links = ARRAY_SIZE(cht_dailink),
314 .dapm_widgets = cht_dapm_widgets,
315 .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
316 .dapm_routes = cht_rt5650_audio_map,
317 .num_dapm_routes = ARRAY_SIZE(cht_rt5650_audio_map),
318 .controls = cht_mc_controls,
319 .num_controls = ARRAY_SIZE(cht_mc_controls),
320};
321
322static struct cht_acpi_card snd_soc_cards[] = {
323 {"10EC5645", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645},
324 {"10EC5650", CODEC_TYPE_RT5650, &snd_soc_card_chtrt5650},
325};
326
327static acpi_status snd_acpi_codec_match(acpi_handle handle, u32 level,
328 void *context, void **ret)
329{
330 *(bool *)context = true;
331 return AE_OK;
332}
333
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334static int snd_cht_mc_probe(struct platform_device *pdev)
335{
336 int ret_val = 0;
c4ba51ba 337 int i;
e18acdc0 338 struct cht_mc_private *drv;
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339 struct snd_soc_card *card = snd_soc_cards[0].soc_card;
340 bool found = false;
341 char codec_name[16];
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342
343 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
344 if (!drv)
345 return -ENOMEM;
346
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347 for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) {
348 if (ACPI_SUCCESS(acpi_get_devices(
349 snd_soc_cards[i].codec_id,
350 snd_acpi_codec_match,
351 &found, NULL)) && found) {
352 dev_dbg(&pdev->dev,
353 "found codec %s\n", snd_soc_cards[i].codec_id);
354 card = snd_soc_cards[i].soc_card;
355 drv->acpi_card = &snd_soc_cards[i];
356 break;
357 }
358 }
359 card->dev = &pdev->dev;
360 sprintf(codec_name, "i2c-%s:00", drv->acpi_card->codec_id);
361 /* set correct codec name */
362 strcpy((char *)card->dai_link[2].codec_name, codec_name);
363 snd_soc_card_set_drvdata(card, drv);
364 ret_val = devm_snd_soc_register_card(&pdev->dev, card);
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365 if (ret_val) {
366 dev_err(&pdev->dev,
367 "snd_soc_register_card failed %d\n", ret_val);
368 return ret_val;
369 }
c4ba51ba 370 platform_set_drvdata(pdev, card);
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371 return ret_val;
372}
373
374static struct platform_driver snd_cht_mc_driver = {
375 .driver = {
e18acdc0 376 .name = "cht-bsw-rt5645",
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377 },
378 .probe = snd_cht_mc_probe,
379};
380
381module_platform_driver(snd_cht_mc_driver)
382
383MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
384MODULE_AUTHOR("Fang, Yang A,N,Harshapriya");
385MODULE_LICENSE("GPL v2");
386MODULE_ALIAS("platform:cht-bsw-rt5645");
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