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Diffstat (limited to 'sound/soc/samsung/smdk_wm8994.c')
-rw-r--r--sound/soc/samsung/smdk_wm8994.c176
1 files changed, 176 insertions, 0 deletions
diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
new file mode 100644
index 000000000000..e7c1009a1e1d
--- /dev/null
+++ b/sound/soc/samsung/smdk_wm8994.c
@@ -0,0 +1,176 @@
1/*
2 * smdk_wm8994.c
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License as published by the
6 * Free Software Foundation; either version 2 of the License, or (at your
7 * option) any later version.
8 */
9
10#include "../codecs/wm8994.h"
11
12 /*
13 * Default CFG switch settings to use this driver:
14 * SMDKV310: CFG5-1000, CFG7-111111
15 */
16
17 /*
18 * Configure audio route as :-
19 * $ amixer sset 'DAC1' on,on
20 * $ amixer sset 'Right Headphone Mux' 'DAC'
21 * $ amixer sset 'Left Headphone Mux' 'DAC'
22 * $ amixer sset 'DAC1R Mixer AIF1.1' on
23 * $ amixer sset 'DAC1L Mixer AIF1.1' on
24 * $ amixer sset 'IN2L' on
25 * $ amixer sset 'IN2L PGA IN2LN' on
26 * $ amixer sset 'MIXINL IN2L' on
27 * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on
28 * $ amixer sset 'IN2R' on
29 * $ amixer sset 'IN2R PGA IN2RN' on
30 * $ amixer sset 'MIXINR IN2R' on
31 * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on
32 */
33
34/* SMDK has a 16.934MHZ crystal attached to WM8994 */
35#define SMDK_WM8994_FREQ 16934000
36
37static int smdk_hw_params(struct snd_pcm_substream *substream,
38 struct snd_pcm_hw_params *params)
39{
40 struct snd_soc_pcm_runtime *rtd = substream->private_data;
41 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
42 struct snd_soc_dai *codec_dai = rtd->codec_dai;
43 unsigned int pll_out;
44 int ret;
45
46 /* AIF1CLK should be >=3MHz for optimal performance */
47 if (params_rate(params) == 8000 || params_rate(params) == 11025)
48 pll_out = params_rate(params) * 512;
49 else
50 pll_out = params_rate(params) * 256;
51
52 ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
53 | SND_SOC_DAIFMT_NB_NF
54 | SND_SOC_DAIFMT_CBM_CFM);
55 if (ret < 0)
56 return ret;
57
58 ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
59 | SND_SOC_DAIFMT_NB_NF
60 | SND_SOC_DAIFMT_CBM_CFM);
61 if (ret < 0)
62 return ret;
63
64 ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
65 SMDK_WM8994_FREQ, pll_out);
66 if (ret < 0)
67 return ret;
68
69 ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
70 pll_out, SND_SOC_CLOCK_IN);
71 if (ret < 0)
72 return ret;
73
74 return 0;
75}
76
77/*
78 * SMDK WM8994 DAI operations.
79 */
80static struct snd_soc_ops smdk_ops = {
81 .hw_params = smdk_hw_params,
82};
83
84static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd)
85{
86 struct snd_soc_codec *codec = rtd->codec;
87 struct snd_soc_dapm_context *dapm = &codec->dapm;
88
89 /* HeadPhone */
90 snd_soc_dapm_enable_pin(dapm, "HPOUT1R");
91 snd_soc_dapm_enable_pin(dapm, "HPOUT1L");
92
93 /* MicIn */
94 snd_soc_dapm_enable_pin(dapm, "IN1LN");
95 snd_soc_dapm_enable_pin(dapm, "IN1RN");
96
97 /* LineIn */
98 snd_soc_dapm_enable_pin(dapm, "IN2LN");
99 snd_soc_dapm_enable_pin(dapm, "IN2RN");
100
101 /* Other pins NC */
102 snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
103 snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
104 snd_soc_dapm_nc_pin(dapm, "SPKOUTLN");
105 snd_soc_dapm_nc_pin(dapm, "SPKOUTLP");
106 snd_soc_dapm_nc_pin(dapm, "SPKOUTRP");
107 snd_soc_dapm_nc_pin(dapm, "SPKOUTRN");
108 snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
109 snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
110 snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
111 snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
112 snd_soc_dapm_nc_pin(dapm, "IN1LP");
113 snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
114 snd_soc_dapm_nc_pin(dapm, "IN1RP");
115 snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
116
117 snd_soc_dapm_sync(dapm);
118
119 return 0;
120}
121
122static struct snd_soc_dai_link smdk_dai[] = {
123 { /* Primary DAI i/f */
124 .name = "WM8994 AIF1",
125 .stream_name = "Pri_Dai",
126 .cpu_dai_name = "samsung-i2s.0",
127 .codec_dai_name = "wm8994-aif1",
128 .platform_name = "samsung-audio",
129 .codec_name = "wm8994-codec",
130 .init = smdk_wm8994_init_paiftx,
131 .ops = &smdk_ops,
132 }, { /* Sec_Fifo Playback i/f */
133 .name = "Sec_FIFO TX",
134 .stream_name = "Sec_Dai",
135 .cpu_dai_name = "samsung-i2s.4",
136 .codec_dai_name = "wm8994-aif1",
137 .platform_name = "samsung-audio",
138 .codec_name = "wm8994-codec",
139 .ops = &smdk_ops,
140 },
141};
142
143static struct snd_soc_card smdk = {
144 .name = "SMDK-I2S",
145 .dai_link = smdk_dai,
146 .num_links = ARRAY_SIZE(smdk_dai),
147};
148
149static struct platform_device *smdk_snd_device;
150
151static int __init smdk_audio_init(void)
152{
153 int ret;
154
155 smdk_snd_device = platform_device_alloc("soc-audio", -1);
156 if (!smdk_snd_device)
157 return -ENOMEM;
158
159 platform_set_drvdata(smdk_snd_device, &smdk);
160
161 ret = platform_device_add(smdk_snd_device);
162 if (ret)
163 platform_device_put(smdk_snd_device);
164
165 return ret;
166}
167module_init(smdk_audio_init);
168
169static void __exit smdk_audio_exit(void)
170{
171 platform_device_unregister(smdk_snd_device);
172}
173module_exit(smdk_audio_exit);
174
175MODULE_DESCRIPTION("ALSA SoC SMDK WM8994");
176MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-07 08:38:41 -0400