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 LG |
35 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
36 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
d0f5fa17 | 37 | unsigned int pll_out; |
38 | int bfs, rfs, ret; | |
39 | ||
88ce1465 TB |
40 | switch (params_width(params)) { |
41 | case 8: | |
d0f5fa17 | 42 | bfs = 16; |
43 | break; | |
88ce1465 | 44 | case 16: |
d0f5fa17 | 45 | bfs = 32; |
46 | break; | |
47 | default: | |
48 | return -EINVAL; | |
49 | } | |
50 | ||
51 | /* The Fvco for WM8580 PLLs must fall within [90,100]MHz. | |
52 | * This criterion can't be met if we request PLL output | |
53 | * as {8000x256, 64000x256, 11025x256}Hz. | |
54 | * As a wayout, we rather change rfs to a minimum value that | |
55 | * results in (params_rate(params) * rfs), and itself, acceptable | |
56 | * to both - the CODEC and the CPU. | |
57 | */ | |
58 | switch (params_rate(params)) { | |
59 | case 16000: | |
60 | case 22050: | |
61 | case 32000: | |
62 | case 44100: | |
63 | case 48000: | |
64 | case 88200: | |
65 | case 96000: | |
66 | rfs = 256; | |
67 | break; | |
68 | case 64000: | |
69 | rfs = 384; | |
70 | break; | |
71 | case 8000: | |
72 | case 11025: | |
73 | rfs = 512; | |
74 | break; | |
75 | default: | |
76 | return -EINVAL; | |
77 | } | |
78 | pll_out = params_rate(params) * rfs; | |
79 | ||
80 | /* Set the Codec DAI configuration */ | |
81 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
82 | | SND_SOC_DAIFMT_NB_NF | |
83 | | SND_SOC_DAIFMT_CBM_CFM); | |
84 | if (ret < 0) | |
85 | return ret; | |
86 | ||
87 | /* Set the AP DAI configuration */ | |
88 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
89 | | SND_SOC_DAIFMT_NB_NF | |
90 | | SND_SOC_DAIFMT_CBM_CFM); | |
91 | if (ret < 0) | |
92 | return ret; | |
93 | ||
26d95b6e | 94 | /* Set WM8580 to drive MCLK from its PLLA */ |
d0f5fa17 | 95 | ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_MCLK, |
96 | WM8580_CLKSRC_PLLA); | |
97 | if (ret < 0) | |
98 | return ret; | |
99 | ||
c5607d8e | 100 | ret = snd_soc_dai_set_pll(codec_dai, WM8580_PLLA, 0, |
d98ce6cf | 101 | SMDK_WM8580_FREQ, pll_out); |
d0f5fa17 | 102 | if (ret < 0) |
103 | return ret; | |
104 | ||
c5607d8e MB |
105 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8580_CLKSRC_PLLA, |
106 | pll_out, SND_SOC_CLOCK_IN); | |
d0f5fa17 | 107 | if (ret < 0) |
108 | return ret; | |
109 | ||
d0f5fa17 | 110 | return 0; |
111 | } | |
112 | ||
113 | /* | |
d98ce6cf | 114 | * SMDK WM8580 DAI operations. |
d0f5fa17 | 115 | */ |
d98ce6cf JB |
116 | static struct snd_soc_ops smdk_ops = { |
117 | .hw_params = smdk_hw_params, | |
d0f5fa17 | 118 | }; |
119 | ||
d98ce6cf | 120 | /* SMDK Playback widgets */ |
ce363f6d | 121 | static const struct snd_soc_dapm_widget smdk_wm8580_dapm_widgets[] = { |
698cb111 MB |
122 | SND_SOC_DAPM_HP("Front", NULL), |
123 | SND_SOC_DAPM_HP("Center+Sub", NULL), | |
124 | SND_SOC_DAPM_HP("Rear", NULL), | |
d0f5fa17 | 125 | |
d0f5fa17 | 126 | SND_SOC_DAPM_MIC("MicIn", NULL), |
127 | SND_SOC_DAPM_LINE("LineIn", NULL), | |
128 | }; | |
129 | ||
130 | /* SMDK-PAIFTX connections */ | |
ce363f6d | 131 | static const struct snd_soc_dapm_route smdk_wm8580_audio_map[] = { |
d0f5fa17 | 132 | /* MicIn feeds AINL */ |
133 | {"AINL", NULL, "MicIn"}, | |
134 | ||
135 | /* LineIn feeds AINL/R */ | |
136 | {"AINL", NULL, "LineIn"}, | |
137 | {"AINR", NULL, "LineIn"}, | |
d0f5fa17 | 138 | |
d0f5fa17 | 139 | /* Front Left/Right are fed VOUT1L/R */ |
698cb111 MB |
140 | {"Front", NULL, "VOUT1L"}, |
141 | {"Front", NULL, "VOUT1R"}, | |
d0f5fa17 | 142 | |
143 | /* Center/Sub are fed VOUT2L/R */ | |
698cb111 MB |
144 | {"Center+Sub", NULL, "VOUT2L"}, |
145 | {"Center+Sub", NULL, "VOUT2R"}, | |
d0f5fa17 | 146 | |
147 | /* Rear Left/Right are fed VOUT3L/R */ | |
698cb111 MB |
148 | {"Rear", NULL, "VOUT3L"}, |
149 | {"Rear", NULL, "VOUT3R"}, | |
d0f5fa17 | 150 | }; |
151 | ||
d98ce6cf | 152 | static int smdk_wm8580_init_paiftx(struct snd_soc_pcm_runtime *rtd) |
d0f5fa17 | 153 | { |
f0fba2ad | 154 | struct snd_soc_codec *codec = rtd->codec; |
ce6120cc | 155 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
f0fba2ad | 156 | |
26d95b6e MB |
157 | /* Enabling the microphone requires the fitting of a 0R |
158 | * resistor to connect the line from the microphone jack. | |
159 | */ | |
ce6120cc | 160 | snd_soc_dapm_disable_pin(dapm, "MicIn"); |
d0f5fa17 | 161 | |
d0f5fa17 | 162 | return 0; |
163 | } | |
164 | ||
b0f39c25 JB |
165 | enum { |
166 | PRI_PLAYBACK = 0, | |
167 | PRI_CAPTURE, | |
168 | SEC_PLAYBACK, | |
169 | }; | |
170 | ||
d98ce6cf | 171 | static struct snd_soc_dai_link smdk_dai[] = { |
b0f39c25 JB |
172 | [PRI_PLAYBACK] = { /* Primary Playback i/f */ |
173 | .name = "WM8580 PAIF RX", | |
174 | .stream_name = "Playback", | |
72685f27 | 175 | .cpu_dai_name = "samsung-i2s.0", |
b0f39c25 | 176 | .codec_dai_name = "wm8580-hifi-playback", |
a08485d8 | 177 | .platform_name = "samsung-i2s.0", |
5d5d09b2 | 178 | .codec_name = "wm8580.0-001b", |
b0f39c25 JB |
179 | .ops = &smdk_ops, |
180 | }, | |
181 | [PRI_CAPTURE] = { /* Primary Capture i/f */ | |
182 | .name = "WM8580 PAIF TX", | |
183 | .stream_name = "Capture", | |
72685f27 | 184 | .cpu_dai_name = "samsung-i2s.0", |
b0f39c25 | 185 | .codec_dai_name = "wm8580-hifi-capture", |
a08485d8 | 186 | .platform_name = "samsung-i2s.0", |
5d5d09b2 | 187 | .codec_name = "wm8580.0-001b", |
b0f39c25 JB |
188 | .init = smdk_wm8580_init_paiftx, |
189 | .ops = &smdk_ops, | |
190 | }, | |
191 | [SEC_PLAYBACK] = { /* Sec_Fifo Playback i/f */ | |
192 | .name = "Sec_FIFO TX", | |
193 | .stream_name = "Playback", | |
7c62eebb | 194 | .cpu_dai_name = "samsung-i2s-sec", |
b0f39c25 | 195 | .codec_dai_name = "wm8580-hifi-playback", |
7c62eebb | 196 | .platform_name = "samsung-i2s-sec", |
5d5d09b2 | 197 | .codec_name = "wm8580.0-001b", |
b0f39c25 JB |
198 | .ops = &smdk_ops, |
199 | }, | |
d0f5fa17 | 200 | }; |
201 | ||
d98ce6cf JB |
202 | static struct snd_soc_card smdk = { |
203 | .name = "SMDK-I2S", | |
095d79dc | 204 | .owner = THIS_MODULE, |
d98ce6cf | 205 | .dai_link = smdk_dai, |
b0f39c25 | 206 | .num_links = 2, |
ce363f6d MB |
207 | |
208 | .dapm_widgets = smdk_wm8580_dapm_widgets, | |
209 | .num_dapm_widgets = ARRAY_SIZE(smdk_wm8580_dapm_widgets), | |
210 | .dapm_routes = smdk_wm8580_audio_map, | |
211 | .num_dapm_routes = ARRAY_SIZE(smdk_wm8580_audio_map), | |
d0f5fa17 | 212 | }; |
213 | ||
d98ce6cf | 214 | static struct platform_device *smdk_snd_device; |
d0f5fa17 | 215 | |
d98ce6cf | 216 | static int __init smdk_audio_init(void) |
d0f5fa17 | 217 | { |
218 | int ret; | |
b0f39c25 JB |
219 | char *str; |
220 | ||
4b42120d | 221 | if (machine_is_smdkc100() |
40d24829 | 222 | || machine_is_smdkv210() || machine_is_smdkc110()) { |
b0f39c25 | 223 | smdk.num_links = 3; |
72685f27 JB |
224 | } else if (machine_is_smdk6410()) { |
225 | str = (char *)smdk_dai[PRI_PLAYBACK].cpu_dai_name; | |
226 | str[strlen(str) - 1] = '2'; | |
227 | str = (char *)smdk_dai[PRI_CAPTURE].cpu_dai_name; | |
228 | str[strlen(str) - 1] = '2'; | |
b0f39c25 | 229 | } |
d0f5fa17 | 230 | |
d98ce6cf JB |
231 | smdk_snd_device = platform_device_alloc("soc-audio", -1); |
232 | if (!smdk_snd_device) | |
d0f5fa17 | 233 | return -ENOMEM; |
234 | ||
d98ce6cf JB |
235 | platform_set_drvdata(smdk_snd_device, &smdk); |
236 | ret = platform_device_add(smdk_snd_device); | |
d0f5fa17 | 237 | |
238 | if (ret) | |
d98ce6cf | 239 | platform_device_put(smdk_snd_device); |
d0f5fa17 | 240 | |
241 | return ret; | |
242 | } | |
d98ce6cf | 243 | module_init(smdk_audio_init); |
d0f5fa17 | 244 | |
38533698 MB |
245 | static void __exit smdk_audio_exit(void) |
246 | { | |
247 | platform_device_unregister(smdk_snd_device); | |
248 | } | |
249 | module_exit(smdk_audio_exit); | |
250 | ||
df8ad335 | 251 | MODULE_AUTHOR("Jaswinder Singh, jassisinghbrar@gmail.com"); |
d98ce6cf | 252 | MODULE_DESCRIPTION("ALSA SoC SMDK WM8580"); |
d0f5fa17 | 253 | MODULE_LICENSE("GPL"); |