Commit | Line | Data |
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d0f5fa17 | 1 | /* |
d98ce6cf | 2 | * smdk_wm8580.c |
d0f5fa17 | 3 | * |
4 | * Copyright (c) 2009 Samsung Electronics Co. Ltd | |
df8ad335 | 5 | * Author: Jaswinder Singh <jassisinghbrar@gmail.com> |
d0f5fa17 | 6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | */ | |
12 | ||
da155d5b | 13 | #include <linux/module.h> |
d0f5fa17 | 14 | #include <sound/soc.h> |
0378b6ac | 15 | #include <sound/pcm_params.h> |
d0f5fa17 | 16 | |
b0f39c25 JB |
17 | #include <asm/mach-types.h> |
18 | ||
d0f5fa17 | 19 | #include "../codecs/wm8580.h" |
0fff21a8 | 20 | #include "i2s.h" |
d0f5fa17 | 21 | |
9d37e894 MB |
22 | /* |
23 | * Default CFG switch settings to use this driver: | |
24 | * | |
25 | * SMDK6410: Set CFG1 1-3 Off, CFG2 1-4 On | |
26 | */ | |
27 | ||
d98ce6cf JB |
28 | /* SMDK has a 12MHZ crystal attached to WM8580 */ |
29 | #define SMDK_WM8580_FREQ 12000000 | |
d0f5fa17 | 30 | |
d98ce6cf | 31 | static int smdk_hw_params(struct snd_pcm_substream *substream, |
d0f5fa17 | 32 | struct snd_pcm_hw_params *params) |
33 | { | |
34 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad | 35 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
d0f5fa17 | 36 | unsigned int pll_out; |
37 | int bfs, rfs, ret; | |
38 | ||
88ce1465 TB |
39 | switch (params_width(params)) { |
40 | case 8: | |
d0f5fa17 | 41 | bfs = 16; |
42 | break; | |
88ce1465 | 43 | case 16: |
d0f5fa17 | 44 | bfs = 32; |
45 | break; | |
46 | default: | |
47 | return -EINVAL; | |
48 | } | |
49 | ||
50 | /* The Fvco for WM8580 PLLs must fall within [90,100]MHz. | |
51 | * This criterion can't be met if we request PLL output | |
52 | * as {8000x256, 64000x256, 11025x256}Hz. | |
53 | * As a wayout, we rather change rfs to a minimum value that | |
54 | * results in (params_rate(params) * rfs), and itself, acceptable | |
55 | * to both - the CODEC and the CPU. | |
56 | */ | |
57 | switch (params_rate(params)) { | |
58 | case 16000: | |
59 | case 22050: | |
60 | case 32000: | |
61 | case 44100: | |
62 | case 48000: | |
63 | case 88200: | |
64 | case 96000: | |
65 | rfs = 256; | |
66 | break; | |
67 | case 64000: | |
68 | rfs = 384; | |
69 | break; | |
70 | case 8000: | |
71 | case 11025: | |
72 | rfs = 512; | |
73 | break; | |
74 | default: | |
75 | return -EINVAL; | |
76 | } | |
77 | pll_out = params_rate(params) * rfs; | |
78 | ||
26d95b6e | 79 | /* Set WM8580 to drive MCLK from its PLLA */ |
d0f5fa17 | 80 | ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_MCLK, |
81 | WM8580_CLKSRC_PLLA); | |
82 | if (ret < 0) | |
83 | return ret; | |
84 | ||
c5607d8e | 85 | ret = snd_soc_dai_set_pll(codec_dai, WM8580_PLLA, 0, |
d98ce6cf | 86 | SMDK_WM8580_FREQ, pll_out); |
d0f5fa17 | 87 | if (ret < 0) |
88 | return ret; | |
89 | ||
c5607d8e MB |
90 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8580_CLKSRC_PLLA, |
91 | pll_out, SND_SOC_CLOCK_IN); | |
d0f5fa17 | 92 | if (ret < 0) |
93 | return ret; | |
94 | ||
d0f5fa17 | 95 | return 0; |
96 | } | |
97 | ||
98 | /* | |
d98ce6cf | 99 | * SMDK WM8580 DAI operations. |
d0f5fa17 | 100 | */ |
d98ce6cf JB |
101 | static struct snd_soc_ops smdk_ops = { |
102 | .hw_params = smdk_hw_params, | |
d0f5fa17 | 103 | }; |
104 | ||
d98ce6cf | 105 | /* SMDK Playback widgets */ |
ce363f6d | 106 | static const struct snd_soc_dapm_widget smdk_wm8580_dapm_widgets[] = { |
698cb111 MB |
107 | SND_SOC_DAPM_HP("Front", NULL), |
108 | SND_SOC_DAPM_HP("Center+Sub", NULL), | |
109 | SND_SOC_DAPM_HP("Rear", NULL), | |
d0f5fa17 | 110 | |
d0f5fa17 | 111 | SND_SOC_DAPM_MIC("MicIn", NULL), |
112 | SND_SOC_DAPM_LINE("LineIn", NULL), | |
113 | }; | |
114 | ||
115 | /* SMDK-PAIFTX connections */ | |
ce363f6d | 116 | static const struct snd_soc_dapm_route smdk_wm8580_audio_map[] = { |
d0f5fa17 | 117 | /* MicIn feeds AINL */ |
118 | {"AINL", NULL, "MicIn"}, | |
119 | ||
120 | /* LineIn feeds AINL/R */ | |
121 | {"AINL", NULL, "LineIn"}, | |
122 | {"AINR", NULL, "LineIn"}, | |
d0f5fa17 | 123 | |
d0f5fa17 | 124 | /* Front Left/Right are fed VOUT1L/R */ |
698cb111 MB |
125 | {"Front", NULL, "VOUT1L"}, |
126 | {"Front", NULL, "VOUT1R"}, | |
d0f5fa17 | 127 | |
128 | /* Center/Sub are fed VOUT2L/R */ | |
698cb111 MB |
129 | {"Center+Sub", NULL, "VOUT2L"}, |
130 | {"Center+Sub", NULL, "VOUT2R"}, | |
d0f5fa17 | 131 | |
132 | /* Rear Left/Right are fed VOUT3L/R */ | |
698cb111 MB |
133 | {"Rear", NULL, "VOUT3L"}, |
134 | {"Rear", NULL, "VOUT3R"}, | |
d0f5fa17 | 135 | }; |
136 | ||
d98ce6cf | 137 | static int smdk_wm8580_init_paiftx(struct snd_soc_pcm_runtime *rtd) |
d0f5fa17 | 138 | { |
26d95b6e MB |
139 | /* Enabling the microphone requires the fitting of a 0R |
140 | * resistor to connect the line from the microphone jack. | |
141 | */ | |
e236d4d7 | 142 | snd_soc_dapm_disable_pin(&rtd->card->dapm, "MicIn"); |
d0f5fa17 | 143 | |
d0f5fa17 | 144 | return 0; |
145 | } | |
146 | ||
b0f39c25 JB |
147 | enum { |
148 | PRI_PLAYBACK = 0, | |
149 | PRI_CAPTURE, | |
150 | SEC_PLAYBACK, | |
151 | }; | |
152 | ||
7a57ca23 LPC |
153 | #define SMDK_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \ |
154 | SND_SOC_DAIFMT_CBM_CFM) | |
155 | ||
d98ce6cf | 156 | static struct snd_soc_dai_link smdk_dai[] = { |
b0f39c25 JB |
157 | [PRI_PLAYBACK] = { /* Primary Playback i/f */ |
158 | .name = "WM8580 PAIF RX", | |
159 | .stream_name = "Playback", | |
72685f27 | 160 | .cpu_dai_name = "samsung-i2s.0", |
b0f39c25 | 161 | .codec_dai_name = "wm8580-hifi-playback", |
a08485d8 | 162 | .platform_name = "samsung-i2s.0", |
5d5d09b2 | 163 | .codec_name = "wm8580.0-001b", |
7a57ca23 | 164 | .dai_fmt = SMDK_DAI_FMT, |
b0f39c25 JB |
165 | .ops = &smdk_ops, |
166 | }, | |
167 | [PRI_CAPTURE] = { /* Primary Capture i/f */ | |
168 | .name = "WM8580 PAIF TX", | |
169 | .stream_name = "Capture", | |
72685f27 | 170 | .cpu_dai_name = "samsung-i2s.0", |
b0f39c25 | 171 | .codec_dai_name = "wm8580-hifi-capture", |
a08485d8 | 172 | .platform_name = "samsung-i2s.0", |
5d5d09b2 | 173 | .codec_name = "wm8580.0-001b", |
7a57ca23 | 174 | .dai_fmt = SMDK_DAI_FMT, |
b0f39c25 JB |
175 | .init = smdk_wm8580_init_paiftx, |
176 | .ops = &smdk_ops, | |
177 | }, | |
178 | [SEC_PLAYBACK] = { /* Sec_Fifo Playback i/f */ | |
179 | .name = "Sec_FIFO TX", | |
180 | .stream_name = "Playback", | |
7c62eebb | 181 | .cpu_dai_name = "samsung-i2s-sec", |
b0f39c25 | 182 | .codec_dai_name = "wm8580-hifi-playback", |
7c62eebb | 183 | .platform_name = "samsung-i2s-sec", |
5d5d09b2 | 184 | .codec_name = "wm8580.0-001b", |
7a57ca23 | 185 | .dai_fmt = SMDK_DAI_FMT, |
b0f39c25 JB |
186 | .ops = &smdk_ops, |
187 | }, | |
d0f5fa17 | 188 | }; |
189 | ||
d98ce6cf JB |
190 | static struct snd_soc_card smdk = { |
191 | .name = "SMDK-I2S", | |
095d79dc | 192 | .owner = THIS_MODULE, |
d98ce6cf | 193 | .dai_link = smdk_dai, |
b0f39c25 | 194 | .num_links = 2, |
ce363f6d MB |
195 | |
196 | .dapm_widgets = smdk_wm8580_dapm_widgets, | |
197 | .num_dapm_widgets = ARRAY_SIZE(smdk_wm8580_dapm_widgets), | |
198 | .dapm_routes = smdk_wm8580_audio_map, | |
199 | .num_dapm_routes = ARRAY_SIZE(smdk_wm8580_audio_map), | |
d0f5fa17 | 200 | }; |
201 | ||
d98ce6cf | 202 | static struct platform_device *smdk_snd_device; |
d0f5fa17 | 203 | |
d98ce6cf | 204 | static int __init smdk_audio_init(void) |
d0f5fa17 | 205 | { |
206 | int ret; | |
b0f39c25 JB |
207 | char *str; |
208 | ||
4b42120d | 209 | if (machine_is_smdkc100() |
40d24829 | 210 | || machine_is_smdkv210() || machine_is_smdkc110()) { |
b0f39c25 | 211 | smdk.num_links = 3; |
72685f27 JB |
212 | } else if (machine_is_smdk6410()) { |
213 | str = (char *)smdk_dai[PRI_PLAYBACK].cpu_dai_name; | |
214 | str[strlen(str) - 1] = '2'; | |
215 | str = (char *)smdk_dai[PRI_CAPTURE].cpu_dai_name; | |
216 | str[strlen(str) - 1] = '2'; | |
b0f39c25 | 217 | } |
d0f5fa17 | 218 | |
d98ce6cf JB |
219 | smdk_snd_device = platform_device_alloc("soc-audio", -1); |
220 | if (!smdk_snd_device) | |
d0f5fa17 | 221 | return -ENOMEM; |
222 | ||
d98ce6cf JB |
223 | platform_set_drvdata(smdk_snd_device, &smdk); |
224 | ret = platform_device_add(smdk_snd_device); | |
d0f5fa17 | 225 | |
226 | if (ret) | |
d98ce6cf | 227 | platform_device_put(smdk_snd_device); |
d0f5fa17 | 228 | |
229 | return ret; | |
230 | } | |
d98ce6cf | 231 | module_init(smdk_audio_init); |
d0f5fa17 | 232 | |
38533698 MB |
233 | static void __exit smdk_audio_exit(void) |
234 | { | |
235 | platform_device_unregister(smdk_snd_device); | |
236 | } | |
237 | module_exit(smdk_audio_exit); | |
238 | ||
df8ad335 | 239 | MODULE_AUTHOR("Jaswinder Singh, jassisinghbrar@gmail.com"); |
d98ce6cf | 240 | MODULE_DESCRIPTION("ALSA SoC SMDK WM8580"); |
d0f5fa17 | 241 | MODULE_LICENSE("GPL"); |