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1 | /* |
2 | * wm1133-ev1.c - Audio for WM1133-EV1 on i.MX31ADS | |
3 | * | |
4 | * Copyright (c) 2010 Wolfson Microelectronics plc | |
5 | * Author: Mark Brown <[email protected]> | |
6 | * | |
7 | * Based on an earlier driver for the same hardware by Liam Girdwood. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the | |
11 | * Free Software Foundation; either version 2 of the License, or (at your | |
12 | * option) any later version. | |
13 | */ | |
14 | ||
15 | #include <linux/platform_device.h> | |
16 | #include <linux/clk.h> | |
da155d5b | 17 | #include <linux/module.h> |
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18 | #include <sound/core.h> |
19 | #include <sound/jack.h> | |
20 | #include <sound/pcm.h> | |
21 | #include <sound/pcm_params.h> | |
22 | #include <sound/soc.h> | |
eeec1246 | 23 | |
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24 | #include "imx-ssi.h" |
25 | #include "../codecs/wm8350.h" | |
3c77c29c | 26 | #include "imx-audmux.h" |
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27 | |
28 | /* There is a silicon mic on the board optionally connected via a solder pad | |
29 | * SP1. Define this to enable it. | |
30 | */ | |
31 | #undef USE_SIMIC | |
32 | ||
33 | struct _wm8350_audio { | |
34 | unsigned int channels; | |
35 | snd_pcm_format_t format; | |
36 | unsigned int rate; | |
37 | unsigned int sysclk; | |
38 | unsigned int bclkdiv; | |
39 | unsigned int clkdiv; | |
40 | unsigned int lr_rate; | |
41 | }; | |
42 | ||
43 | /* in order of power consumption per rate (lowest first) */ | |
44 | static const struct _wm8350_audio wm8350_audio[] = { | |
45 | /* 16bit mono modes */ | |
46 | {1, SNDRV_PCM_FORMAT_S16_LE, 8000, 12288000 >> 1, | |
47 | WM8350_BCLK_DIV_48, WM8350_DACDIV_3, 16,}, | |
48 | ||
49 | /* 16 bit stereo modes */ | |
50 | {2, SNDRV_PCM_FORMAT_S16_LE, 8000, 12288000, | |
51 | WM8350_BCLK_DIV_48, WM8350_DACDIV_6, 32,}, | |
52 | {2, SNDRV_PCM_FORMAT_S16_LE, 16000, 12288000, | |
53 | WM8350_BCLK_DIV_24, WM8350_DACDIV_3, 32,}, | |
54 | {2, SNDRV_PCM_FORMAT_S16_LE, 32000, 12288000, | |
55 | WM8350_BCLK_DIV_12, WM8350_DACDIV_1_5, 32,}, | |
56 | {2, SNDRV_PCM_FORMAT_S16_LE, 48000, 12288000, | |
57 | WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,}, | |
58 | {2, SNDRV_PCM_FORMAT_S16_LE, 96000, 24576000, | |
59 | WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,}, | |
60 | {2, SNDRV_PCM_FORMAT_S16_LE, 11025, 11289600, | |
61 | WM8350_BCLK_DIV_32, WM8350_DACDIV_4, 32,}, | |
62 | {2, SNDRV_PCM_FORMAT_S16_LE, 22050, 11289600, | |
63 | WM8350_BCLK_DIV_16, WM8350_DACDIV_2, 32,}, | |
64 | {2, SNDRV_PCM_FORMAT_S16_LE, 44100, 11289600, | |
65 | WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,}, | |
66 | {2, SNDRV_PCM_FORMAT_S16_LE, 88200, 22579200, | |
67 | WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,}, | |
68 | ||
69 | /* 24bit stereo modes */ | |
70 | {2, SNDRV_PCM_FORMAT_S24_LE, 48000, 12288000, | |
71 | WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,}, | |
72 | {2, SNDRV_PCM_FORMAT_S24_LE, 96000, 24576000, | |
73 | WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,}, | |
74 | {2, SNDRV_PCM_FORMAT_S24_LE, 44100, 11289600, | |
75 | WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,}, | |
76 | {2, SNDRV_PCM_FORMAT_S24_LE, 88200, 22579200, | |
77 | WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,}, | |
78 | }; | |
79 | ||
80 | static int wm1133_ev1_hw_params(struct snd_pcm_substream *substream, | |
81 | struct snd_pcm_hw_params *params) | |
82 | { | |
83 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
84 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
85 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
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86 | int i, found = 0; |
87 | snd_pcm_format_t format = params_format(params); | |
88 | unsigned int rate = params_rate(params); | |
89 | unsigned int channels = params_channels(params); | |
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90 | |
91 | /* find the correct audio parameters */ | |
92 | for (i = 0; i < ARRAY_SIZE(wm8350_audio); i++) { | |
93 | if (rate == wm8350_audio[i].rate && | |
94 | format == wm8350_audio[i].format && | |
95 | channels == wm8350_audio[i].channels) { | |
96 | found = 1; | |
97 | break; | |
98 | } | |
99 | } | |
100 | if (!found) | |
101 | return -EINVAL; | |
102 | ||
103 | /* codec FLL input is 14.75 MHz from MCLK */ | |
104 | snd_soc_dai_set_pll(codec_dai, 0, 0, 14750000, wm8350_audio[i].sysclk); | |
105 | ||
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106 | /* TODO: The SSI driver should figure this out for us */ |
107 | switch (channels) { | |
108 | case 2: | |
d0077aaf | 109 | snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 0); |
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110 | break; |
111 | case 1: | |
d0077aaf | 112 | snd_soc_dai_set_tdm_slot(cpu_dai, 0x1, 0x1, 1, 0); |
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113 | break; |
114 | default: | |
115 | return -EINVAL; | |
116 | } | |
117 | ||
118 | /* set MCLK as the codec system clock for DAC and ADC */ | |
119 | snd_soc_dai_set_sysclk(codec_dai, WM8350_MCLK_SEL_PLL_MCLK, | |
120 | wm8350_audio[i].sysclk, SND_SOC_CLOCK_IN); | |
121 | ||
122 | /* set codec BCLK division for sample rate */ | |
123 | snd_soc_dai_set_clkdiv(codec_dai, WM8350_BCLK_CLKDIV, | |
124 | wm8350_audio[i].bclkdiv); | |
125 | ||
126 | /* DAI is synchronous and clocked with DAC LRCLK & ADC LRC */ | |
127 | snd_soc_dai_set_clkdiv(codec_dai, | |
128 | WM8350_DACLR_CLKDIV, wm8350_audio[i].lr_rate); | |
129 | snd_soc_dai_set_clkdiv(codec_dai, | |
130 | WM8350_ADCLR_CLKDIV, wm8350_audio[i].lr_rate); | |
131 | ||
132 | /* now configure DAC and ADC clocks */ | |
133 | snd_soc_dai_set_clkdiv(codec_dai, | |
134 | WM8350_DAC_CLKDIV, wm8350_audio[i].clkdiv); | |
135 | ||
136 | snd_soc_dai_set_clkdiv(codec_dai, | |
137 | WM8350_ADC_CLKDIV, wm8350_audio[i].clkdiv); | |
138 | ||
139 | return 0; | |
140 | } | |
141 | ||
5ace37bd | 142 | static const struct snd_soc_ops wm1133_ev1_ops = { |
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143 | .hw_params = wm1133_ev1_hw_params, |
144 | }; | |
145 | ||
146 | static const struct snd_soc_dapm_widget wm1133_ev1_widgets[] = { | |
147 | #ifdef USE_SIMIC | |
148 | SND_SOC_DAPM_MIC("SiMIC", NULL), | |
149 | #endif | |
150 | SND_SOC_DAPM_MIC("Mic1 Jack", NULL), | |
151 | SND_SOC_DAPM_MIC("Mic2 Jack", NULL), | |
152 | SND_SOC_DAPM_LINE("Line In Jack", NULL), | |
153 | SND_SOC_DAPM_LINE("Line Out Jack", NULL), | |
154 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
155 | }; | |
156 | ||
157 | /* imx32ads soc_card audio map */ | |
158 | static const struct snd_soc_dapm_route wm1133_ev1_map[] = { | |
159 | ||
160 | #ifdef USE_SIMIC | |
161 | /* SiMIC --> IN1LN (with automatic bias) via SP1 */ | |
162 | { "IN1LN", NULL, "Mic Bias" }, | |
163 | { "Mic Bias", NULL, "SiMIC" }, | |
164 | #endif | |
165 | ||
166 | /* Mic 1 Jack --> IN1LN and IN1LP (with automatic bias) */ | |
167 | { "IN1LN", NULL, "Mic Bias" }, | |
168 | { "IN1LP", NULL, "Mic1 Jack" }, | |
169 | { "Mic Bias", NULL, "Mic1 Jack" }, | |
170 | ||
171 | /* Mic 2 Jack --> IN1RN and IN1RP (with automatic bias) */ | |
172 | { "IN1RN", NULL, "Mic Bias" }, | |
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173 | { "IN1RP", NULL, "Mic2 Jack" }, |
174 | { "Mic Bias", NULL, "Mic2 Jack" }, | |
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175 | |
176 | /* Line in Jack --> AUX (L+R) */ | |
177 | { "IN3R", NULL, "Line In Jack" }, | |
178 | { "IN3L", NULL, "Line In Jack" }, | |
179 | ||
180 | /* Out1 --> Headphone Jack */ | |
181 | { "Headphone Jack", NULL, "OUT1R" }, | |
182 | { "Headphone Jack", NULL, "OUT1L" }, | |
183 | ||
184 | /* Out1 --> Line Out Jack */ | |
185 | { "Line Out Jack", NULL, "OUT2R" }, | |
186 | { "Line Out Jack", NULL, "OUT2L" }, | |
187 | }; | |
188 | ||
189 | static struct snd_soc_jack hp_jack; | |
190 | ||
191 | static struct snd_soc_jack_pin hp_jack_pins[] = { | |
192 | { .pin = "Headphone Jack", .mask = SND_JACK_HEADPHONE }, | |
193 | }; | |
194 | ||
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195 | static struct snd_soc_jack mic_jack; |
196 | ||
197 | static struct snd_soc_jack_pin mic_jack_pins[] = { | |
198 | { .pin = "Mic1 Jack", .mask = SND_JACK_MICROPHONE }, | |
199 | { .pin = "Mic2 Jack", .mask = SND_JACK_MICROPHONE }, | |
200 | }; | |
201 | ||
f0fba2ad | 202 | static int wm1133_ev1_init(struct snd_soc_pcm_runtime *rtd) |
eeec1246 | 203 | { |
f0fba2ad | 204 | struct snd_soc_codec *codec = rtd->codec; |
eeec1246 | 205 | |
eeec1246 | 206 | /* Headphone jack detection */ |
47ec96d4 LPC |
207 | snd_soc_card_jack_new(rtd->card, "Headphone", SND_JACK_HEADPHONE, |
208 | &hp_jack, hp_jack_pins, ARRAY_SIZE(hp_jack_pins)); | |
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209 | wm8350_hp_jack_detect(codec, WM8350_JDR, &hp_jack, SND_JACK_HEADPHONE); |
210 | ||
093208f5 | 211 | /* Microphone jack detection */ |
47ec96d4 LPC |
212 | snd_soc_card_jack_new(rtd->card, "Microphone", |
213 | SND_JACK_MICROPHONE | SND_JACK_BTN_0, &mic_jack, | |
214 | mic_jack_pins, ARRAY_SIZE(mic_jack_pins)); | |
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215 | wm8350_mic_jack_detect(codec, &mic_jack, SND_JACK_MICROPHONE, |
216 | SND_JACK_BTN_0); | |
217 | ||
02f51640 | 218 | snd_soc_dapm_force_enable_pin(&rtd->card->dapm, "Mic Bias"); |
2f14430a | 219 | |
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220 | return 0; |
221 | } | |
222 | ||
223 | ||
224 | static struct snd_soc_dai_link wm1133_ev1_dai = { | |
225 | .name = "WM1133-EV1", | |
226 | .stream_name = "Audio", | |
205d231b | 227 | .cpu_dai_name = "imx-ssi.0", |
f0fba2ad | 228 | .codec_dai_name = "wm8350-hifi", |
2bf9d4bb | 229 | .platform_name = "imx-ssi.0", |
f0fba2ad | 230 | .codec_name = "wm8350-codec.0-0x1a", |
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231 | .init = wm1133_ev1_init, |
232 | .ops = &wm1133_ev1_ops, | |
233 | .symmetric_rates = 1, | |
734890a6 LPC |
234 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
235 | SND_SOC_DAIFMT_CBM_CFM, | |
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236 | }; |
237 | ||
238 | static struct snd_soc_card wm1133_ev1 = { | |
239 | .name = "WM1133-EV1", | |
6aff8ccb | 240 | .owner = THIS_MODULE, |
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241 | .dai_link = &wm1133_ev1_dai, |
242 | .num_links = 1, | |
112ad7f2 LPC |
243 | |
244 | .dapm_widgets = wm1133_ev1_widgets, | |
245 | .num_dapm_widgets = ARRAY_SIZE(wm1133_ev1_widgets), | |
246 | .dapm_routes = wm1133_ev1_map, | |
247 | .num_dapm_routes = ARRAY_SIZE(wm1133_ev1_map), | |
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248 | }; |
249 | ||
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250 | static struct platform_device *wm1133_ev1_snd_device; |
251 | ||
252 | static int __init wm1133_ev1_audio_init(void) | |
253 | { | |
254 | int ret; | |
255 | unsigned int ptcr, pdcr; | |
256 | ||
257 | /* SSI0 mastered by port 5 */ | |
af4872fb SG |
258 | ptcr = IMX_AUDMUX_V2_PTCR_SYN | |
259 | IMX_AUDMUX_V2_PTCR_TFSDIR | | |
260 | IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT5_SSI_PINS_5) | | |
261 | IMX_AUDMUX_V2_PTCR_TCLKDIR | | |
262 | IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT5_SSI_PINS_5); | |
263 | pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT5_SSI_PINS_5); | |
264 | imx_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0, ptcr, pdcr); | |
265 | ||
266 | ptcr = IMX_AUDMUX_V2_PTCR_SYN; | |
267 | pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0); | |
268 | imx_audmux_v2_configure_port(MX31_AUDMUX_PORT5_SSI_PINS_5, ptcr, pdcr); | |
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269 | |
270 | wm1133_ev1_snd_device = platform_device_alloc("soc-audio", -1); | |
271 | if (!wm1133_ev1_snd_device) | |
272 | return -ENOMEM; | |
273 | ||
f0fba2ad | 274 | platform_set_drvdata(wm1133_ev1_snd_device, &wm1133_ev1); |
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275 | ret = platform_device_add(wm1133_ev1_snd_device); |
276 | ||
277 | if (ret) | |
278 | platform_device_put(wm1133_ev1_snd_device); | |
279 | ||
280 | return ret; | |
281 | } | |
282 | module_init(wm1133_ev1_audio_init); | |
283 | ||
284 | static void __exit wm1133_ev1_audio_exit(void) | |
285 | { | |
286 | platform_device_unregister(wm1133_ev1_snd_device); | |
287 | } | |
288 | module_exit(wm1133_ev1_audio_exit); | |
289 | ||
290 | MODULE_AUTHOR("Mark Brown <[email protected]>"); | |
291 | MODULE_DESCRIPTION("Audio for WM1133-EV1 on i.MX31ADS"); | |
292 | MODULE_LICENSE("GPL"); |