Commit | Line | Data |
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d0f5fa17 | 1 | /* |
d98ce6cf | 2 | * smdk_wm8580.c |
d0f5fa17 | 3 | * |
4 | * Copyright (c) 2009 Samsung Electronics Co. Ltd | |
5 | * Author: Jaswinder Singh <jassi.brar@samsung.com> | |
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 | ||
d0f5fa17 | 13 | #include <sound/soc.h> |
0378b6ac | 14 | #include <sound/pcm_params.h> |
d0f5fa17 | 15 | |
b0f39c25 JB |
16 | #include <asm/mach-types.h> |
17 | ||
d0f5fa17 | 18 | #include "../codecs/wm8580.h" |
0fff21a8 | 19 | #include "i2s.h" |
d0f5fa17 | 20 | |
9d37e894 MB |
21 | /* |
22 | * Default CFG switch settings to use this driver: | |
23 | * | |
24 | * SMDK6410: Set CFG1 1-3 Off, CFG2 1-4 On | |
25 | */ | |
26 | ||
d98ce6cf JB |
27 | /* SMDK has a 12MHZ crystal attached to WM8580 */ |
28 | #define SMDK_WM8580_FREQ 12000000 | |
d0f5fa17 | 29 | |
d98ce6cf | 30 | static int smdk_hw_params(struct snd_pcm_substream *substream, |
d0f5fa17 | 31 | struct snd_pcm_hw_params *params) |
32 | { | |
33 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
34 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; |
35 | struct snd_soc_dai *codec_dai = rtd->codec_dai; | |
d0f5fa17 | 36 | unsigned int pll_out; |
37 | int bfs, rfs, ret; | |
38 | ||
39 | switch (params_format(params)) { | |
40 | case SNDRV_PCM_FORMAT_U8: | |
41 | case SNDRV_PCM_FORMAT_S8: | |
42 | bfs = 16; | |
43 | break; | |
44 | case SNDRV_PCM_FORMAT_U16_LE: | |
45 | case SNDRV_PCM_FORMAT_S16_LE: | |
46 | bfs = 32; | |
47 | break; | |
48 | default: | |
49 | return -EINVAL; | |
50 | } | |
51 | ||
52 | /* The Fvco for WM8580 PLLs must fall within [90,100]MHz. | |
53 | * This criterion can't be met if we request PLL output | |
54 | * as {8000x256, 64000x256, 11025x256}Hz. | |
55 | * As a wayout, we rather change rfs to a minimum value that | |
56 | * results in (params_rate(params) * rfs), and itself, acceptable | |
57 | * to both - the CODEC and the CPU. | |
58 | */ | |
59 | switch (params_rate(params)) { | |
60 | case 16000: | |
61 | case 22050: | |
62 | case 32000: | |
63 | case 44100: | |
64 | case 48000: | |
65 | case 88200: | |
66 | case 96000: | |
67 | rfs = 256; | |
68 | break; | |
69 | case 64000: | |
70 | rfs = 384; | |
71 | break; | |
72 | case 8000: | |
73 | case 11025: | |
74 | rfs = 512; | |
75 | break; | |
76 | default: | |
77 | return -EINVAL; | |
78 | } | |
79 | pll_out = params_rate(params) * rfs; | |
80 | ||
81 | /* Set the Codec DAI configuration */ | |
82 | ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | |
83 | | SND_SOC_DAIFMT_NB_NF | |
84 | | SND_SOC_DAIFMT_CBM_CFM); | |
85 | if (ret < 0) | |
86 | return ret; | |
87 | ||
88 | /* Set the AP DAI configuration */ | |
89 | ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | |
90 | | SND_SOC_DAIFMT_NB_NF | |
91 | | SND_SOC_DAIFMT_CBM_CFM); | |
92 | if (ret < 0) | |
93 | return ret; | |
94 | ||
26d95b6e | 95 | /* Set WM8580 to drive MCLK from its PLLA */ |
d0f5fa17 | 96 | ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_MCLK, |
97 | WM8580_CLKSRC_PLLA); | |
98 | if (ret < 0) | |
99 | return ret; | |
100 | ||
c5607d8e | 101 | ret = snd_soc_dai_set_pll(codec_dai, WM8580_PLLA, 0, |
d98ce6cf | 102 | SMDK_WM8580_FREQ, pll_out); |
d0f5fa17 | 103 | if (ret < 0) |
104 | return ret; | |
105 | ||
c5607d8e MB |
106 | ret = snd_soc_dai_set_sysclk(codec_dai, WM8580_CLKSRC_PLLA, |
107 | pll_out, SND_SOC_CLOCK_IN); | |
d0f5fa17 | 108 | if (ret < 0) |
109 | return ret; | |
110 | ||
d0f5fa17 | 111 | return 0; |
112 | } | |
113 | ||
114 | /* | |
d98ce6cf | 115 | * SMDK WM8580 DAI operations. |
d0f5fa17 | 116 | */ |
d98ce6cf JB |
117 | static struct snd_soc_ops smdk_ops = { |
118 | .hw_params = smdk_hw_params, | |
d0f5fa17 | 119 | }; |
120 | ||
d98ce6cf | 121 | /* SMDK Playback widgets */ |
d0f5fa17 | 122 | static const struct snd_soc_dapm_widget wm8580_dapm_widgets_pbk[] = { |
698cb111 MB |
123 | SND_SOC_DAPM_HP("Front", NULL), |
124 | SND_SOC_DAPM_HP("Center+Sub", NULL), | |
125 | SND_SOC_DAPM_HP("Rear", NULL), | |
d0f5fa17 | 126 | }; |
127 | ||
d98ce6cf | 128 | /* SMDK Capture widgets */ |
d0f5fa17 | 129 | static const struct snd_soc_dapm_widget wm8580_dapm_widgets_cpt[] = { |
130 | SND_SOC_DAPM_MIC("MicIn", NULL), | |
131 | SND_SOC_DAPM_LINE("LineIn", NULL), | |
132 | }; | |
133 | ||
134 | /* SMDK-PAIFTX connections */ | |
135 | static const struct snd_soc_dapm_route audio_map_tx[] = { | |
136 | /* MicIn feeds AINL */ | |
137 | {"AINL", NULL, "MicIn"}, | |
138 | ||
139 | /* LineIn feeds AINL/R */ | |
140 | {"AINL", NULL, "LineIn"}, | |
141 | {"AINR", NULL, "LineIn"}, | |
142 | }; | |
143 | ||
144 | /* SMDK-PAIFRX connections */ | |
145 | static const struct snd_soc_dapm_route audio_map_rx[] = { | |
146 | /* Front Left/Right are fed VOUT1L/R */ | |
698cb111 MB |
147 | {"Front", NULL, "VOUT1L"}, |
148 | {"Front", NULL, "VOUT1R"}, | |
d0f5fa17 | 149 | |
150 | /* Center/Sub are fed VOUT2L/R */ | |
698cb111 MB |
151 | {"Center+Sub", NULL, "VOUT2L"}, |
152 | {"Center+Sub", NULL, "VOUT2R"}, | |
d0f5fa17 | 153 | |
154 | /* Rear Left/Right are fed VOUT3L/R */ | |
698cb111 MB |
155 | {"Rear", NULL, "VOUT3L"}, |
156 | {"Rear", NULL, "VOUT3R"}, | |
d0f5fa17 | 157 | }; |
158 | ||
d98ce6cf | 159 | static int smdk_wm8580_init_paiftx(struct snd_soc_pcm_runtime *rtd) |
d0f5fa17 | 160 | { |
f0fba2ad | 161 | struct snd_soc_codec *codec = rtd->codec; |
ce6120cc | 162 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
f0fba2ad | 163 | |
d98ce6cf | 164 | /* Add smdk specific Capture widgets */ |
ce6120cc | 165 | snd_soc_dapm_new_controls(dapm, wm8580_dapm_widgets_cpt, |
d0f5fa17 | 166 | ARRAY_SIZE(wm8580_dapm_widgets_cpt)); |
167 | ||
168 | /* Set up PAIFTX audio path */ | |
ce6120cc | 169 | snd_soc_dapm_add_routes(dapm, audio_map_tx, ARRAY_SIZE(audio_map_tx)); |
d0f5fa17 | 170 | |
26d95b6e MB |
171 | /* Enabling the microphone requires the fitting of a 0R |
172 | * resistor to connect the line from the microphone jack. | |
173 | */ | |
ce6120cc | 174 | snd_soc_dapm_disable_pin(dapm, "MicIn"); |
d0f5fa17 | 175 | |
176 | /* signal a DAPM event */ | |
ce6120cc | 177 | snd_soc_dapm_sync(dapm); |
d0f5fa17 | 178 | |
179 | return 0; | |
180 | } | |
181 | ||
d98ce6cf | 182 | static int smdk_wm8580_init_paifrx(struct snd_soc_pcm_runtime *rtd) |
d0f5fa17 | 183 | { |
f0fba2ad | 184 | struct snd_soc_codec *codec = rtd->codec; |
ce6120cc | 185 | struct snd_soc_dapm_context *dapm = &codec->dapm; |
f0fba2ad | 186 | |
d98ce6cf | 187 | /* Add smdk specific Playback widgets */ |
ce6120cc | 188 | snd_soc_dapm_new_controls(dapm, wm8580_dapm_widgets_pbk, |
d0f5fa17 | 189 | ARRAY_SIZE(wm8580_dapm_widgets_pbk)); |
190 | ||
191 | /* Set up PAIFRX audio path */ | |
ce6120cc | 192 | snd_soc_dapm_add_routes(dapm, audio_map_rx, ARRAY_SIZE(audio_map_rx)); |
d0f5fa17 | 193 | |
d0f5fa17 | 194 | /* signal a DAPM event */ |
ce6120cc | 195 | snd_soc_dapm_sync(dapm); |
d0f5fa17 | 196 | |
197 | return 0; | |
198 | } | |
199 | ||
b0f39c25 JB |
200 | enum { |
201 | PRI_PLAYBACK = 0, | |
202 | PRI_CAPTURE, | |
203 | SEC_PLAYBACK, | |
204 | }; | |
205 | ||
d98ce6cf | 206 | static struct snd_soc_dai_link smdk_dai[] = { |
b0f39c25 JB |
207 | [PRI_PLAYBACK] = { /* Primary Playback i/f */ |
208 | .name = "WM8580 PAIF RX", | |
209 | .stream_name = "Playback", | |
72685f27 | 210 | .cpu_dai_name = "samsung-i2s.0", |
b0f39c25 JB |
211 | .codec_dai_name = "wm8580-hifi-playback", |
212 | .platform_name = "samsung-audio", | |
5d5d09b2 | 213 | .codec_name = "wm8580.0-001b", |
b0f39c25 JB |
214 | .init = smdk_wm8580_init_paifrx, |
215 | .ops = &smdk_ops, | |
216 | }, | |
217 | [PRI_CAPTURE] = { /* Primary Capture i/f */ | |
218 | .name = "WM8580 PAIF TX", | |
219 | .stream_name = "Capture", | |
72685f27 | 220 | .cpu_dai_name = "samsung-i2s.0", |
b0f39c25 JB |
221 | .codec_dai_name = "wm8580-hifi-capture", |
222 | .platform_name = "samsung-audio", | |
5d5d09b2 | 223 | .codec_name = "wm8580.0-001b", |
b0f39c25 JB |
224 | .init = smdk_wm8580_init_paiftx, |
225 | .ops = &smdk_ops, | |
226 | }, | |
227 | [SEC_PLAYBACK] = { /* Sec_Fifo Playback i/f */ | |
228 | .name = "Sec_FIFO TX", | |
229 | .stream_name = "Playback", | |
230 | .cpu_dai_name = "samsung-i2s.x", | |
231 | .codec_dai_name = "wm8580-hifi-playback", | |
232 | .platform_name = "samsung-audio", | |
5d5d09b2 | 233 | .codec_name = "wm8580.0-001b", |
b0f39c25 JB |
234 | .init = smdk_wm8580_init_paifrx, |
235 | .ops = &smdk_ops, | |
236 | }, | |
d0f5fa17 | 237 | }; |
238 | ||
d98ce6cf JB |
239 | static struct snd_soc_card smdk = { |
240 | .name = "SMDK-I2S", | |
241 | .dai_link = smdk_dai, | |
b0f39c25 | 242 | .num_links = 2, |
d0f5fa17 | 243 | }; |
244 | ||
d98ce6cf | 245 | static struct platform_device *smdk_snd_device; |
d0f5fa17 | 246 | |
d98ce6cf | 247 | static int __init smdk_audio_init(void) |
d0f5fa17 | 248 | { |
249 | int ret; | |
b0f39c25 JB |
250 | char *str; |
251 | ||
4b42120d | 252 | if (machine_is_smdkc100() |
40d24829 | 253 | || machine_is_smdkv210() || machine_is_smdkc110()) { |
b0f39c25 | 254 | smdk.num_links = 3; |
b0f39c25 JB |
255 | /* Secondary is at offset SAMSUNG_I2S_SECOFF from Primary */ |
256 | str = (char *)smdk_dai[SEC_PLAYBACK].cpu_dai_name; | |
257 | str[strlen(str) - 1] = '0' + SAMSUNG_I2S_SECOFF; | |
72685f27 JB |
258 | } else if (machine_is_smdk6410()) { |
259 | str = (char *)smdk_dai[PRI_PLAYBACK].cpu_dai_name; | |
260 | str[strlen(str) - 1] = '2'; | |
261 | str = (char *)smdk_dai[PRI_CAPTURE].cpu_dai_name; | |
262 | str[strlen(str) - 1] = '2'; | |
b0f39c25 | 263 | } |
d0f5fa17 | 264 | |
d98ce6cf JB |
265 | smdk_snd_device = platform_device_alloc("soc-audio", -1); |
266 | if (!smdk_snd_device) | |
d0f5fa17 | 267 | return -ENOMEM; |
268 | ||
d98ce6cf JB |
269 | platform_set_drvdata(smdk_snd_device, &smdk); |
270 | ret = platform_device_add(smdk_snd_device); | |
d0f5fa17 | 271 | |
272 | if (ret) | |
d98ce6cf | 273 | platform_device_put(smdk_snd_device); |
d0f5fa17 | 274 | |
275 | return ret; | |
276 | } | |
d98ce6cf | 277 | module_init(smdk_audio_init); |
d0f5fa17 | 278 | |
38533698 MB |
279 | static void __exit smdk_audio_exit(void) |
280 | { | |
281 | platform_device_unregister(smdk_snd_device); | |
282 | } | |
283 | module_exit(smdk_audio_exit); | |
284 | ||
d0f5fa17 | 285 | MODULE_AUTHOR("Jaswinder Singh, jassi.brar@samsung.com"); |
d98ce6cf | 286 | MODULE_DESCRIPTION("ALSA SoC SMDK WM8580"); |
d0f5fa17 | 287 | MODULE_LICENSE("GPL"); |