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Diffstat (limited to 'sound/soc/fsl/wm1133-ev1.c')
-rw-r--r--sound/soc/fsl/wm1133-ev1.c304
1 files changed, 304 insertions, 0 deletions
diff --git a/sound/soc/fsl/wm1133-ev1.c b/sound/soc/fsl/wm1133-ev1.c
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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 <broonie@opensource.wolfsonmicro.com>
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>
17#include <linux/module.h>
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>
23
24#include "imx-ssi.h"
25#include "../codecs/wm8350.h"
26#include "imx-audmux.h"
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
33struct _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) */
44static 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
80static 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;
84 struct snd_soc_dai *codec_dai = rtd->codec_dai;
85 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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);
90 u32 dai_format;
91
92 /* find the correct audio parameters */
93 for (i = 0; i < ARRAY_SIZE(wm8350_audio); i++) {
94 if (rate == wm8350_audio[i].rate &&
95 format == wm8350_audio[i].format &&
96 channels == wm8350_audio[i].channels) {
97 found = 1;
98 break;
99 }
100 }
101 if (!found)
102 return -EINVAL;
103
104 /* codec FLL input is 14.75 MHz from MCLK */
105 snd_soc_dai_set_pll(codec_dai, 0, 0, 14750000, wm8350_audio[i].sysclk);
106
107 dai_format = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
108 SND_SOC_DAIFMT_CBM_CFM;
109
110 /* set codec DAI configuration */
111 snd_soc_dai_set_fmt(codec_dai, dai_format);
112
113 /* set cpu DAI configuration */
114 snd_soc_dai_set_fmt(cpu_dai, dai_format);
115
116 /* TODO: The SSI driver should figure this out for us */
117 switch (channels) {
118 case 2:
119 snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0);
120 break;
121 case 1:
122 snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffe, 0xffffffe, 1, 0);
123 break;
124 default:
125 return -EINVAL;
126 }
127
128 /* set MCLK as the codec system clock for DAC and ADC */
129 snd_soc_dai_set_sysclk(codec_dai, WM8350_MCLK_SEL_PLL_MCLK,
130 wm8350_audio[i].sysclk, SND_SOC_CLOCK_IN);
131
132 /* set codec BCLK division for sample rate */
133 snd_soc_dai_set_clkdiv(codec_dai, WM8350_BCLK_CLKDIV,
134 wm8350_audio[i].bclkdiv);
135
136 /* DAI is synchronous and clocked with DAC LRCLK & ADC LRC */
137 snd_soc_dai_set_clkdiv(codec_dai,
138 WM8350_DACLR_CLKDIV, wm8350_audio[i].lr_rate);
139 snd_soc_dai_set_clkdiv(codec_dai,
140 WM8350_ADCLR_CLKDIV, wm8350_audio[i].lr_rate);
141
142 /* now configure DAC and ADC clocks */
143 snd_soc_dai_set_clkdiv(codec_dai,
144 WM8350_DAC_CLKDIV, wm8350_audio[i].clkdiv);
145
146 snd_soc_dai_set_clkdiv(codec_dai,
147 WM8350_ADC_CLKDIV, wm8350_audio[i].clkdiv);
148
149 return 0;
150}
151
152static struct snd_soc_ops wm1133_ev1_ops = {
153 .hw_params = wm1133_ev1_hw_params,
154};
155
156static const struct snd_soc_dapm_widget wm1133_ev1_widgets[] = {
157#ifdef USE_SIMIC
158 SND_SOC_DAPM_MIC("SiMIC", NULL),
159#endif
160 SND_SOC_DAPM_MIC("Mic1 Jack", NULL),
161 SND_SOC_DAPM_MIC("Mic2 Jack", NULL),
162 SND_SOC_DAPM_LINE("Line In Jack", NULL),
163 SND_SOC_DAPM_LINE("Line Out Jack", NULL),
164 SND_SOC_DAPM_HP("Headphone Jack", NULL),
165};
166
167/* imx32ads soc_card audio map */
168static const struct snd_soc_dapm_route wm1133_ev1_map[] = {
169
170#ifdef USE_SIMIC
171 /* SiMIC --> IN1LN (with automatic bias) via SP1 */
172 { "IN1LN", NULL, "Mic Bias" },
173 { "Mic Bias", NULL, "SiMIC" },
174#endif
175
176 /* Mic 1 Jack --> IN1LN and IN1LP (with automatic bias) */
177 { "IN1LN", NULL, "Mic Bias" },
178 { "IN1LP", NULL, "Mic1 Jack" },
179 { "Mic Bias", NULL, "Mic1 Jack" },
180
181 /* Mic 2 Jack --> IN1RN and IN1RP (with automatic bias) */
182 { "IN1RN", NULL, "Mic Bias" },
183 { "IN1RP", NULL, "Mic2 Jack" },
184 { "Mic Bias", NULL, "Mic2 Jack" },
185
186 /* Line in Jack --> AUX (L+R) */
187 { "IN3R", NULL, "Line In Jack" },
188 { "IN3L", NULL, "Line In Jack" },
189
190 /* Out1 --> Headphone Jack */
191 { "Headphone Jack", NULL, "OUT1R" },
192 { "Headphone Jack", NULL, "OUT1L" },
193
194 /* Out1 --> Line Out Jack */
195 { "Line Out Jack", NULL, "OUT2R" },
196 { "Line Out Jack", NULL, "OUT2L" },
197};
198
199static struct snd_soc_jack hp_jack;
200
201static struct snd_soc_jack_pin hp_jack_pins[] = {
202 { .pin = "Headphone Jack", .mask = SND_JACK_HEADPHONE },
203};
204
205static struct snd_soc_jack mic_jack;
206
207static struct snd_soc_jack_pin mic_jack_pins[] = {
208 { .pin = "Mic1 Jack", .mask = SND_JACK_MICROPHONE },
209 { .pin = "Mic2 Jack", .mask = SND_JACK_MICROPHONE },
210};
211
212static int wm1133_ev1_init(struct snd_soc_pcm_runtime *rtd)
213{
214 struct snd_soc_codec *codec = rtd->codec;
215 struct snd_soc_dapm_context *dapm = &codec->dapm;
216
217 snd_soc_dapm_new_controls(dapm, wm1133_ev1_widgets,
218 ARRAY_SIZE(wm1133_ev1_widgets));
219
220 snd_soc_dapm_add_routes(dapm, wm1133_ev1_map,
221 ARRAY_SIZE(wm1133_ev1_map));
222
223 /* Headphone jack detection */
224 snd_soc_jack_new(codec, "Headphone", SND_JACK_HEADPHONE, &hp_jack);
225 snd_soc_jack_add_pins(&hp_jack, ARRAY_SIZE(hp_jack_pins),
226 hp_jack_pins);
227 wm8350_hp_jack_detect(codec, WM8350_JDR, &hp_jack, SND_JACK_HEADPHONE);
228
229 /* Microphone jack detection */
230 snd_soc_jack_new(codec, "Microphone",
231 SND_JACK_MICROPHONE | SND_JACK_BTN_0, &mic_jack);
232 snd_soc_jack_add_pins(&mic_jack, ARRAY_SIZE(mic_jack_pins),
233 mic_jack_pins);
234 wm8350_mic_jack_detect(codec, &mic_jack, SND_JACK_MICROPHONE,
235 SND_JACK_BTN_0);
236
237 snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
238
239 return 0;
240}
241
242
243static struct snd_soc_dai_link wm1133_ev1_dai = {
244 .name = "WM1133-EV1",
245 .stream_name = "Audio",
246 .cpu_dai_name = "imx-ssi.0",
247 .codec_dai_name = "wm8350-hifi",
248 .platform_name = "imx-fiq-pcm-audio.0",
249 .codec_name = "wm8350-codec.0-0x1a",
250 .init = wm1133_ev1_init,
251 .ops = &wm1133_ev1_ops,
252 .symmetric_rates = 1,
253};
254
255static struct snd_soc_card wm1133_ev1 = {
256 .name = "WM1133-EV1",
257 .owner = THIS_MODULE,
258 .dai_link = &wm1133_ev1_dai,
259 .num_links = 1,
260};
261
262static struct platform_device *wm1133_ev1_snd_device;
263
264static int __init wm1133_ev1_audio_init(void)
265{
266 int ret;
267 unsigned int ptcr, pdcr;
268
269 /* SSI0 mastered by port 5 */
270 ptcr = IMX_AUDMUX_V2_PTCR_SYN |
271 IMX_AUDMUX_V2_PTCR_TFSDIR |
272 IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT5_SSI_PINS_5) |
273 IMX_AUDMUX_V2_PTCR_TCLKDIR |
274 IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT5_SSI_PINS_5);
275 pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT5_SSI_PINS_5);
276 imx_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0, ptcr, pdcr);
277
278 ptcr = IMX_AUDMUX_V2_PTCR_SYN;
279 pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0);
280 imx_audmux_v2_configure_port(MX31_AUDMUX_PORT5_SSI_PINS_5, ptcr, pdcr);
281
282 wm1133_ev1_snd_device = platform_device_alloc("soc-audio", -1);
283 if (!wm1133_ev1_snd_device)
284 return -ENOMEM;
285
286 platform_set_drvdata(wm1133_ev1_snd_device, &wm1133_ev1);
287 ret = platform_device_add(wm1133_ev1_snd_device);
288
289 if (ret)
290 platform_device_put(wm1133_ev1_snd_device);
291
292 return ret;
293}
294module_init(wm1133_ev1_audio_init);
295
296static void __exit wm1133_ev1_audio_exit(void)
297{
298 platform_device_unregister(wm1133_ev1_snd_device);
299}
300module_exit(wm1133_ev1_audio_exit);
301
302MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
303MODULE_DESCRIPTION("Audio for WM1133-EV1 on i.MX31ADS");
304MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-05 23:46:01 -0500