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1 | /* |
2 | * byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform | |
3 | * | |
4 | * Copyright (C) 2014 Intel Corp | |
5 | * Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com> | |
6 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; version 2 of the License. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
17 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
18 | */ | |
19 | ||
20 | #include <linux/init.h> | |
21 | #include <linux/module.h> | |
22 | #include <linux/platform_device.h> | |
23 | #include <linux/device.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/input.h> | |
26 | #include <sound/pcm.h> | |
27 | #include <sound/pcm_params.h> | |
28 | #include <sound/soc.h> | |
e56c72d5 | 29 | #include "../../codecs/rt5640.h" |
b97169da | 30 | #include "../atom/sst-atom-controls.h" |
996cc849 SP |
31 | |
32 | static const struct snd_soc_dapm_widget byt_dapm_widgets[] = { | |
33 | SND_SOC_DAPM_HP("Headphone", NULL), | |
34 | SND_SOC_DAPM_MIC("Headset Mic", NULL), | |
35 | SND_SOC_DAPM_MIC("Int Mic", NULL), | |
36 | SND_SOC_DAPM_SPK("Ext Spk", NULL), | |
37 | }; | |
38 | ||
39 | static const struct snd_soc_dapm_route byt_audio_map[] = { | |
40 | {"IN2P", NULL, "Headset Mic"}, | |
41 | {"IN2N", NULL, "Headset Mic"}, | |
42 | {"Headset Mic", NULL, "MICBIAS1"}, | |
43 | {"IN1P", NULL, "MICBIAS1"}, | |
44 | {"LDO2", NULL, "Int Mic"}, | |
45 | {"Headphone", NULL, "HPOL"}, | |
46 | {"Headphone", NULL, "HPOR"}, | |
47 | {"Ext Spk", NULL, "SPOLP"}, | |
48 | {"Ext Spk", NULL, "SPOLN"}, | |
49 | {"Ext Spk", NULL, "SPORP"}, | |
50 | {"Ext Spk", NULL, "SPORN"}, | |
51 | ||
52 | {"AIF1 Playback", NULL, "ssp2 Tx"}, | |
53 | {"ssp2 Tx", NULL, "codec_out0"}, | |
54 | {"ssp2 Tx", NULL, "codec_out1"}, | |
55 | {"codec_in0", NULL, "ssp2 Rx"}, | |
56 | {"codec_in1", NULL, "ssp2 Rx"}, | |
57 | {"ssp2 Rx", NULL, "AIF1 Capture"}, | |
58 | }; | |
59 | ||
60 | static const struct snd_kcontrol_new byt_mc_controls[] = { | |
61 | SOC_DAPM_PIN_SWITCH("Headphone"), | |
62 | SOC_DAPM_PIN_SWITCH("Headset Mic"), | |
63 | SOC_DAPM_PIN_SWITCH("Int Mic"), | |
64 | SOC_DAPM_PIN_SWITCH("Ext Spk"), | |
65 | }; | |
66 | ||
67 | static int byt_aif1_hw_params(struct snd_pcm_substream *substream, | |
68 | struct snd_pcm_hw_params *params) | |
69 | { | |
70 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
71 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
72 | int ret; | |
73 | ||
74 | snd_soc_dai_set_bclk_ratio(codec_dai, 50); | |
75 | ||
76 | ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1, | |
77 | params_rate(params) * 512, | |
78 | SND_SOC_CLOCK_IN); | |
79 | if (ret < 0) { | |
80 | dev_err(rtd->dev, "can't set codec clock %d\n", ret); | |
81 | return ret; | |
82 | } | |
83 | ||
84 | ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1, | |
85 | params_rate(params) * 50, | |
86 | params_rate(params) * 512); | |
87 | if (ret < 0) { | |
88 | dev_err(rtd->dev, "can't set codec pll: %d\n", ret); | |
89 | return ret; | |
90 | } | |
91 | ||
92 | return 0; | |
93 | } | |
94 | ||
95 | static const struct snd_soc_pcm_stream byt_dai_params = { | |
96 | .formats = SNDRV_PCM_FMTBIT_S24_LE, | |
97 | .rate_min = 48000, | |
98 | .rate_max = 48000, | |
99 | .channels_min = 2, | |
100 | .channels_max = 2, | |
101 | }; | |
102 | ||
103 | static int byt_codec_fixup(struct snd_soc_pcm_runtime *rtd, | |
104 | struct snd_pcm_hw_params *params) | |
105 | { | |
106 | struct snd_interval *rate = hw_param_interval(params, | |
107 | SNDRV_PCM_HW_PARAM_RATE); | |
108 | struct snd_interval *channels = hw_param_interval(params, | |
109 | SNDRV_PCM_HW_PARAM_CHANNELS); | |
110 | ||
111 | /* The DSP will covert the FE rate to 48k, stereo, 24bits */ | |
112 | rate->min = rate->max = 48000; | |
113 | channels->min = channels->max = 2; | |
114 | ||
115 | /* set SSP2 to 24-bit */ | |
369a9f5f | 116 | params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); |
996cc849 SP |
117 | return 0; |
118 | } | |
119 | ||
120 | static unsigned int rates_48000[] = { | |
121 | 48000, | |
122 | }; | |
123 | ||
124 | static struct snd_pcm_hw_constraint_list constraints_48000 = { | |
125 | .count = ARRAY_SIZE(rates_48000), | |
126 | .list = rates_48000, | |
127 | }; | |
128 | ||
129 | static int byt_aif1_startup(struct snd_pcm_substream *substream) | |
130 | { | |
131 | return snd_pcm_hw_constraint_list(substream->runtime, 0, | |
132 | SNDRV_PCM_HW_PARAM_RATE, | |
133 | &constraints_48000); | |
134 | } | |
135 | ||
136 | static struct snd_soc_ops byt_aif1_ops = { | |
137 | .startup = byt_aif1_startup, | |
138 | }; | |
139 | ||
140 | static struct snd_soc_ops byt_be_ssp2_ops = { | |
141 | .hw_params = byt_aif1_hw_params, | |
142 | }; | |
143 | ||
144 | static struct snd_soc_dai_link byt_dailink[] = { | |
145 | [MERR_DPCM_AUDIO] = { | |
146 | .name = "Baytrail Audio Port", | |
147 | .stream_name = "Baytrail Audio", | |
148 | .cpu_dai_name = "media-cpu-dai", | |
149 | .codec_dai_name = "snd-soc-dummy-dai", | |
150 | .codec_name = "snd-soc-dummy", | |
151 | .platform_name = "sst-mfld-platform", | |
152 | .ignore_suspend = 1, | |
153 | .dynamic = 1, | |
154 | .dpcm_playback = 1, | |
155 | .dpcm_capture = 1, | |
156 | .ops = &byt_aif1_ops, | |
157 | }, | |
158 | [MERR_DPCM_COMPR] = { | |
159 | .name = "Baytrail Compressed Port", | |
160 | .stream_name = "Baytrail Compress", | |
161 | .cpu_dai_name = "compress-cpu-dai", | |
162 | .codec_dai_name = "snd-soc-dummy-dai", | |
163 | .codec_name = "snd-soc-dummy", | |
164 | .platform_name = "sst-mfld-platform", | |
165 | }, | |
166 | /* back ends */ | |
167 | { | |
168 | .name = "SSP2-Codec", | |
169 | .be_id = 1, | |
170 | .cpu_dai_name = "ssp2-port", | |
171 | .platform_name = "sst-mfld-platform", | |
172 | .no_pcm = 1, | |
173 | .codec_dai_name = "rt5640-aif1", | |
174 | .codec_name = "i2c-10EC5640:00", | |
175 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
176 | | SND_SOC_DAIFMT_CBS_CFS, | |
177 | .be_hw_params_fixup = byt_codec_fixup, | |
178 | .ignore_suspend = 1, | |
179 | .dpcm_playback = 1, | |
180 | .dpcm_capture = 1, | |
181 | .ops = &byt_be_ssp2_ops, | |
182 | }, | |
183 | }; | |
184 | ||
185 | /* SoC card */ | |
186 | static struct snd_soc_card snd_soc_card_byt = { | |
187 | .name = "baytrailcraudio", | |
188 | .dai_link = byt_dailink, | |
189 | .num_links = ARRAY_SIZE(byt_dailink), | |
190 | .dapm_widgets = byt_dapm_widgets, | |
191 | .num_dapm_widgets = ARRAY_SIZE(byt_dapm_widgets), | |
192 | .dapm_routes = byt_audio_map, | |
193 | .num_dapm_routes = ARRAY_SIZE(byt_audio_map), | |
194 | .controls = byt_mc_controls, | |
195 | .num_controls = ARRAY_SIZE(byt_mc_controls), | |
196 | }; | |
197 | ||
198 | static int snd_byt_mc_probe(struct platform_device *pdev) | |
199 | { | |
200 | int ret_val = 0; | |
201 | ||
202 | /* register the soc card */ | |
203 | snd_soc_card_byt.dev = &pdev->dev; | |
204 | ||
205 | ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_byt); | |
206 | if (ret_val) { | |
207 | dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n", ret_val); | |
208 | return ret_val; | |
209 | } | |
210 | platform_set_drvdata(pdev, &snd_soc_card_byt); | |
211 | return ret_val; | |
212 | } | |
213 | ||
214 | static struct platform_driver snd_byt_mc_driver = { | |
215 | .driver = { | |
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216 | .name = "bytt100_rt5640", |
217 | .pm = &snd_soc_pm_ops, | |
218 | }, | |
219 | .probe = snd_byt_mc_probe, | |
220 | }; | |
221 | ||
222 | module_platform_driver(snd_byt_mc_driver); | |
223 | ||
224 | MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver"); | |
225 | MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>"); | |
226 | MODULE_LICENSE("GPL v2"); | |
c6905d62 | 227 | MODULE_ALIAS("platform:bytt100_rt5640"); |