Commit | Line | Data |
---|---|---|
d0f5fa17 | 1 | /* |
2 | * smdk64xx_wm8580.c | |
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 | ||
13 | #include <linux/platform_device.h> | |
14 | #include <linux/clk.h> | |
15 | #include <sound/core.h> | |
16 | #include <sound/pcm.h> | |
17 | #include <sound/pcm_params.h> | |
18 | #include <sound/soc.h> | |
19 | #include <sound/soc-dapm.h> | |
20 | ||
21 | #include "../codecs/wm8580.h" | |
d3ff5a3e | 22 | #include "s3c-dma.h" |
d0f5fa17 | 23 | #include "s3c64xx-i2s.h" |
24 | ||
25 | #define S3C64XX_I2S_V4 2 | |
26 | ||
27 | /* SMDK64XX has a 12MHZ crystal attached to WM8580 */ | |
28 | #define SMDK64XX_WM8580_FREQ 12000000 | |
29 | ||
30 | static int smdk64xx_hw_params(struct snd_pcm_substream *substream, | |
31 | struct snd_pcm_hw_params *params) | |
32 | { | |
33 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
34 | struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai; | |
35 | struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; | |
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 | ||
95 | ret = snd_soc_dai_set_sysclk(cpu_dai, S3C64XX_CLKSRC_CDCLK, | |
96 | 0, SND_SOC_CLOCK_IN); | |
97 | if (ret < 0) | |
98 | return ret; | |
99 | ||
100 | /* We use PCLK for basic ops in SoC-Slave mode */ | |
101 | ret = snd_soc_dai_set_sysclk(cpu_dai, S3C64XX_CLKSRC_PCLK, | |
102 | 0, SND_SOC_CLOCK_IN); | |
103 | if (ret < 0) | |
104 | return ret; | |
105 | ||
26d95b6e | 106 | /* Set WM8580 to drive MCLK from its PLLA */ |
d0f5fa17 | 107 | ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_MCLK, |
108 | WM8580_CLKSRC_PLLA); | |
109 | if (ret < 0) | |
110 | return ret; | |
111 | ||
112 | /* Explicitly set WM8580-DAC to source from MCLK */ | |
113 | ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_DAC_CLKSEL, | |
114 | WM8580_CLKSRC_MCLK); | |
115 | if (ret < 0) | |
116 | return ret; | |
117 | ||
ba2b87f5 | 118 | ret = snd_soc_dai_set_pll(codec_dai, WM8580_PLLA, 0, |
d0f5fa17 | 119 | SMDK64XX_WM8580_FREQ, pll_out); |
120 | if (ret < 0) | |
121 | return ret; | |
122 | ||
123 | ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_I2SV2_DIV_BCLK, bfs); | |
124 | if (ret < 0) | |
125 | return ret; | |
126 | ||
127 | ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_I2SV2_DIV_RCLK, rfs); | |
128 | if (ret < 0) | |
129 | return ret; | |
130 | ||
131 | return 0; | |
132 | } | |
133 | ||
134 | /* | |
135 | * SMDK64XX WM8580 DAI operations. | |
136 | */ | |
137 | static struct snd_soc_ops smdk64xx_ops = { | |
138 | .hw_params = smdk64xx_hw_params, | |
139 | }; | |
140 | ||
141 | /* SMDK64xx Playback widgets */ | |
142 | static const struct snd_soc_dapm_widget wm8580_dapm_widgets_pbk[] = { | |
143 | SND_SOC_DAPM_HP("Front-L/R", NULL), | |
144 | SND_SOC_DAPM_HP("Center/Sub", NULL), | |
145 | SND_SOC_DAPM_HP("Rear-L/R", NULL), | |
146 | }; | |
147 | ||
148 | /* SMDK64xx Capture widgets */ | |
149 | static const struct snd_soc_dapm_widget wm8580_dapm_widgets_cpt[] = { | |
150 | SND_SOC_DAPM_MIC("MicIn", NULL), | |
151 | SND_SOC_DAPM_LINE("LineIn", NULL), | |
152 | }; | |
153 | ||
154 | /* SMDK-PAIFTX connections */ | |
155 | static const struct snd_soc_dapm_route audio_map_tx[] = { | |
156 | /* MicIn feeds AINL */ | |
157 | {"AINL", NULL, "MicIn"}, | |
158 | ||
159 | /* LineIn feeds AINL/R */ | |
160 | {"AINL", NULL, "LineIn"}, | |
161 | {"AINR", NULL, "LineIn"}, | |
162 | }; | |
163 | ||
164 | /* SMDK-PAIFRX connections */ | |
165 | static const struct snd_soc_dapm_route audio_map_rx[] = { | |
166 | /* Front Left/Right are fed VOUT1L/R */ | |
167 | {"Front-L/R", NULL, "VOUT1L"}, | |
168 | {"Front-L/R", NULL, "VOUT1R"}, | |
169 | ||
170 | /* Center/Sub are fed VOUT2L/R */ | |
171 | {"Center/Sub", NULL, "VOUT2L"}, | |
172 | {"Center/Sub", NULL, "VOUT2R"}, | |
173 | ||
174 | /* Rear Left/Right are fed VOUT3L/R */ | |
175 | {"Rear-L/R", NULL, "VOUT3L"}, | |
176 | {"Rear-L/R", NULL, "VOUT3R"}, | |
177 | }; | |
178 | ||
179 | static int smdk64xx_wm8580_init_paiftx(struct snd_soc_codec *codec) | |
180 | { | |
181 | /* Add smdk64xx specific Capture widgets */ | |
182 | snd_soc_dapm_new_controls(codec, wm8580_dapm_widgets_cpt, | |
183 | ARRAY_SIZE(wm8580_dapm_widgets_cpt)); | |
184 | ||
185 | /* Set up PAIFTX audio path */ | |
186 | snd_soc_dapm_add_routes(codec, audio_map_tx, ARRAY_SIZE(audio_map_tx)); | |
187 | ||
26d95b6e MB |
188 | /* Enabling the microphone requires the fitting of a 0R |
189 | * resistor to connect the line from the microphone jack. | |
190 | */ | |
191 | snd_soc_dapm_disable_pin(codec, "MicIn"); | |
d0f5fa17 | 192 | |
193 | /* signal a DAPM event */ | |
194 | snd_soc_dapm_sync(codec); | |
195 | ||
196 | return 0; | |
197 | } | |
198 | ||
199 | static int smdk64xx_wm8580_init_paifrx(struct snd_soc_codec *codec) | |
200 | { | |
201 | /* Add smdk64xx specific Playback widgets */ | |
202 | snd_soc_dapm_new_controls(codec, wm8580_dapm_widgets_pbk, | |
203 | ARRAY_SIZE(wm8580_dapm_widgets_pbk)); | |
204 | ||
205 | /* Set up PAIFRX audio path */ | |
206 | snd_soc_dapm_add_routes(codec, audio_map_rx, ARRAY_SIZE(audio_map_rx)); | |
207 | ||
d0f5fa17 | 208 | /* signal a DAPM event */ |
209 | snd_soc_dapm_sync(codec); | |
210 | ||
211 | return 0; | |
212 | } | |
213 | ||
214 | static struct snd_soc_dai_link smdk64xx_dai[] = { | |
215 | { /* Primary Playback i/f */ | |
216 | .name = "WM8580 PAIF RX", | |
217 | .stream_name = "Playback", | |
218 | .cpu_dai = &s3c64xx_i2s_dai[S3C64XX_I2S_V4], | |
219 | .codec_dai = &wm8580_dai[WM8580_DAI_PAIFRX], | |
220 | .init = smdk64xx_wm8580_init_paifrx, | |
221 | .ops = &smdk64xx_ops, | |
222 | }, | |
223 | { /* Primary Capture i/f */ | |
224 | .name = "WM8580 PAIF TX", | |
225 | .stream_name = "Capture", | |
226 | .cpu_dai = &s3c64xx_i2s_dai[S3C64XX_I2S_V4], | |
227 | .codec_dai = &wm8580_dai[WM8580_DAI_PAIFTX], | |
228 | .init = smdk64xx_wm8580_init_paiftx, | |
229 | .ops = &smdk64xx_ops, | |
230 | }, | |
231 | }; | |
232 | ||
233 | static struct snd_soc_card smdk64xx = { | |
234 | .name = "smdk64xx", | |
235 | .platform = &s3c24xx_soc_platform, | |
236 | .dai_link = smdk64xx_dai, | |
237 | .num_links = ARRAY_SIZE(smdk64xx_dai), | |
238 | }; | |
239 | ||
240 | static struct snd_soc_device smdk64xx_snd_devdata = { | |
241 | .card = &smdk64xx, | |
242 | .codec_dev = &soc_codec_dev_wm8580, | |
243 | }; | |
244 | ||
245 | static struct platform_device *smdk64xx_snd_device; | |
246 | ||
247 | static int __init smdk64xx_audio_init(void) | |
248 | { | |
249 | int ret; | |
250 | ||
251 | smdk64xx_snd_device = platform_device_alloc("soc-audio", -1); | |
252 | if (!smdk64xx_snd_device) | |
253 | return -ENOMEM; | |
254 | ||
255 | platform_set_drvdata(smdk64xx_snd_device, &smdk64xx_snd_devdata); | |
256 | smdk64xx_snd_devdata.dev = &smdk64xx_snd_device->dev; | |
257 | ret = platform_device_add(smdk64xx_snd_device); | |
258 | ||
259 | if (ret) | |
260 | platform_device_put(smdk64xx_snd_device); | |
261 | ||
262 | return ret; | |
263 | } | |
264 | module_init(smdk64xx_audio_init); | |
265 | ||
266 | MODULE_AUTHOR("Jaswinder Singh, jassi.brar@samsung.com"); | |
267 | MODULE_DESCRIPTION("ALSA SoC SMDK64XX WM8580"); | |
268 | MODULE_LICENSE("GPL"); |