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alistair23-linux/sound/soc/fsl/wm1133-ev1.c
Lars-Peter Clausen 02f51640fe ASoC: wm1133-ev1: Use card DAPM context to access widgets 
The dapm field of the snd_soc_codec struct will eventually be removed
(replaced with the DAPM context from the component embedded inside the
CODEC). Replace its usage with the card's DAPM context. The idea is that
DAPM is hierarchical and with the card at the root it is possible to access
widgets from other contexts through the card context.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-04-12 12:42:34 +01:00

293 lines
8.6 KiB
C
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/*
* wm1133-ev1.c - Audio for WM1133-EV1 on i.MX31ADS
*
* Copyright (c) 2010 Wolfson Microelectronics plc
* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
*
* Based on an earlier driver for the same hardware by Liam Girdwood.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "imx-ssi.h"
#include "../codecs/wm8350.h"
#include "imx-audmux.h"
/* There is a silicon mic on the board optionally connected via a solder pad
* SP1. Define this to enable it.
*/
#undef USE_SIMIC
struct _wm8350_audio {
unsigned int channels;
snd_pcm_format_t format;
unsigned int rate;
unsigned int sysclk;
unsigned int bclkdiv;
unsigned int clkdiv;
unsigned int lr_rate;
};
/* in order of power consumption per rate (lowest first) */
static const struct _wm8350_audio wm8350_audio[] = {
/* 16bit mono modes */
{1, SNDRV_PCM_FORMAT_S16_LE, 8000, 12288000 >> 1,
WM8350_BCLK_DIV_48, WM8350_DACDIV_3, 16,},
/* 16 bit stereo modes */
{2, SNDRV_PCM_FORMAT_S16_LE, 8000, 12288000,
WM8350_BCLK_DIV_48, WM8350_DACDIV_6, 32,},
{2, SNDRV_PCM_FORMAT_S16_LE, 16000, 12288000,
WM8350_BCLK_DIV_24, WM8350_DACDIV_3, 32,},
{2, SNDRV_PCM_FORMAT_S16_LE, 32000, 12288000,
WM8350_BCLK_DIV_12, WM8350_DACDIV_1_5, 32,},
{2, SNDRV_PCM_FORMAT_S16_LE, 48000, 12288000,
WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
{2, SNDRV_PCM_FORMAT_S16_LE, 96000, 24576000,
WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
{2, SNDRV_PCM_FORMAT_S16_LE, 11025, 11289600,
WM8350_BCLK_DIV_32, WM8350_DACDIV_4, 32,},
{2, SNDRV_PCM_FORMAT_S16_LE, 22050, 11289600,
WM8350_BCLK_DIV_16, WM8350_DACDIV_2, 32,},
{2, SNDRV_PCM_FORMAT_S16_LE, 44100, 11289600,
WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
{2, SNDRV_PCM_FORMAT_S16_LE, 88200, 22579200,
WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
/* 24bit stereo modes */
{2, SNDRV_PCM_FORMAT_S24_LE, 48000, 12288000,
WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
{2, SNDRV_PCM_FORMAT_S24_LE, 96000, 24576000,
WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
{2, SNDRV_PCM_FORMAT_S24_LE, 44100, 11289600,
WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
{2, SNDRV_PCM_FORMAT_S24_LE, 88200, 22579200,
WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
};
static int wm1133_ev1_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
int i, found = 0;
snd_pcm_format_t format = params_format(params);
unsigned int rate = params_rate(params);
unsigned int channels = params_channels(params);
/* find the correct audio parameters */
for (i = 0; i < ARRAY_SIZE(wm8350_audio); i++) {
if (rate == wm8350_audio[i].rate &&
format == wm8350_audio[i].format &&
channels == wm8350_audio[i].channels) {
found = 1;
break;
}
}
if (!found)
return -EINVAL;
/* codec FLL input is 14.75 MHz from MCLK */
snd_soc_dai_set_pll(codec_dai, 0, 0, 14750000, wm8350_audio[i].sysclk);
/* TODO: The SSI driver should figure this out for us */
switch (channels) {
case 2:
snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 0);
break;
case 1:
snd_soc_dai_set_tdm_slot(cpu_dai, 0x1, 0x1, 1, 0);
break;
default:
return -EINVAL;
}
/* set MCLK as the codec system clock for DAC and ADC */
snd_soc_dai_set_sysclk(codec_dai, WM8350_MCLK_SEL_PLL_MCLK,
wm8350_audio[i].sysclk, SND_SOC_CLOCK_IN);
/* set codec BCLK division for sample rate */
snd_soc_dai_set_clkdiv(codec_dai, WM8350_BCLK_CLKDIV,
wm8350_audio[i].bclkdiv);
/* DAI is synchronous and clocked with DAC LRCLK & ADC LRC */
snd_soc_dai_set_clkdiv(codec_dai,
WM8350_DACLR_CLKDIV, wm8350_audio[i].lr_rate);
snd_soc_dai_set_clkdiv(codec_dai,
WM8350_ADCLR_CLKDIV, wm8350_audio[i].lr_rate);
/* now configure DAC and ADC clocks */
snd_soc_dai_set_clkdiv(codec_dai,
WM8350_DAC_CLKDIV, wm8350_audio[i].clkdiv);
snd_soc_dai_set_clkdiv(codec_dai,
WM8350_ADC_CLKDIV, wm8350_audio[i].clkdiv);
return 0;
}
static struct snd_soc_ops wm1133_ev1_ops = {
.hw_params = wm1133_ev1_hw_params,
};
static const struct snd_soc_dapm_widget wm1133_ev1_widgets[] = {
#ifdef USE_SIMIC
SND_SOC_DAPM_MIC("SiMIC", NULL),
#endif
SND_SOC_DAPM_MIC("Mic1 Jack", NULL),
SND_SOC_DAPM_MIC("Mic2 Jack", NULL),
SND_SOC_DAPM_LINE("Line In Jack", NULL),
SND_SOC_DAPM_LINE("Line Out Jack", NULL),
SND_SOC_DAPM_HP("Headphone Jack", NULL),
};
/* imx32ads soc_card audio map */
static const struct snd_soc_dapm_route wm1133_ev1_map[] = {
#ifdef USE_SIMIC
/* SiMIC --> IN1LN (with automatic bias) via SP1 */
{ "IN1LN", NULL, "Mic Bias" },
{ "Mic Bias", NULL, "SiMIC" },
#endif
/* Mic 1 Jack --> IN1LN and IN1LP (with automatic bias) */
{ "IN1LN", NULL, "Mic Bias" },
{ "IN1LP", NULL, "Mic1 Jack" },
{ "Mic Bias", NULL, "Mic1 Jack" },
/* Mic 2 Jack --> IN1RN and IN1RP (with automatic bias) */
{ "IN1RN", NULL, "Mic Bias" },
{ "IN1RP", NULL, "Mic2 Jack" },
{ "Mic Bias", NULL, "Mic2 Jack" },
/* Line in Jack --> AUX (L+R) */
{ "IN3R", NULL, "Line In Jack" },
{ "IN3L", NULL, "Line In Jack" },
/* Out1 --> Headphone Jack */
{ "Headphone Jack", NULL, "OUT1R" },
{ "Headphone Jack", NULL, "OUT1L" },
/* Out1 --> Line Out Jack */
{ "Line Out Jack", NULL, "OUT2R" },
{ "Line Out Jack", NULL, "OUT2L" },
};
static struct snd_soc_jack hp_jack;
static struct snd_soc_jack_pin hp_jack_pins[] = {
{ .pin = "Headphone Jack", .mask = SND_JACK_HEADPHONE },
};
static struct snd_soc_jack mic_jack;
static struct snd_soc_jack_pin mic_jack_pins[] = {
{ .pin = "Mic1 Jack", .mask = SND_JACK_MICROPHONE },
{ .pin = "Mic2 Jack", .mask = SND_JACK_MICROPHONE },
};
static int wm1133_ev1_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_codec *codec = rtd->codec;
/* Headphone jack detection */
snd_soc_card_jack_new(rtd->card, "Headphone", SND_JACK_HEADPHONE,
&hp_jack, hp_jack_pins, ARRAY_SIZE(hp_jack_pins));
wm8350_hp_jack_detect(codec, WM8350_JDR, &hp_jack, SND_JACK_HEADPHONE);
/* Microphone jack detection */
snd_soc_card_jack_new(rtd->card, "Microphone",
SND_JACK_MICROPHONE | SND_JACK_BTN_0, &mic_jack,
mic_jack_pins, ARRAY_SIZE(mic_jack_pins));
wm8350_mic_jack_detect(codec, &mic_jack, SND_JACK_MICROPHONE,
SND_JACK_BTN_0);
snd_soc_dapm_force_enable_pin(&rtd->card->dapm, "Mic Bias");
return 0;
}
static struct snd_soc_dai_link wm1133_ev1_dai = {
.name = "WM1133-EV1",
.stream_name = "Audio",
.cpu_dai_name = "imx-ssi.0",
.codec_dai_name = "wm8350-hifi",
.platform_name = "imx-ssi.0",
.codec_name = "wm8350-codec.0-0x1a",
.init = wm1133_ev1_init,
.ops = &wm1133_ev1_ops,
.symmetric_rates = 1,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM,
};
static struct snd_soc_card wm1133_ev1 = {
.name = "WM1133-EV1",
.owner = THIS_MODULE,
.dai_link = &wm1133_ev1_dai,
.num_links = 1,
.dapm_widgets = wm1133_ev1_widgets,
.num_dapm_widgets = ARRAY_SIZE(wm1133_ev1_widgets),
.dapm_routes = wm1133_ev1_map,
.num_dapm_routes = ARRAY_SIZE(wm1133_ev1_map),
};
static struct platform_device *wm1133_ev1_snd_device;
static int __init wm1133_ev1_audio_init(void)
{
int ret;
unsigned int ptcr, pdcr;
/* SSI0 mastered by port 5 */
ptcr = IMX_AUDMUX_V2_PTCR_SYN |
IMX_AUDMUX_V2_PTCR_TFSDIR |
IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT5_SSI_PINS_5) |
IMX_AUDMUX_V2_PTCR_TCLKDIR |
IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT5_SSI_PINS_5);
pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT5_SSI_PINS_5);
imx_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0, ptcr, pdcr);
ptcr = IMX_AUDMUX_V2_PTCR_SYN;
pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0);
imx_audmux_v2_configure_port(MX31_AUDMUX_PORT5_SSI_PINS_5, ptcr, pdcr);
wm1133_ev1_snd_device = platform_device_alloc("soc-audio", -1);
if (!wm1133_ev1_snd_device)
return -ENOMEM;
platform_set_drvdata(wm1133_ev1_snd_device, &wm1133_ev1);
ret = platform_device_add(wm1133_ev1_snd_device);
if (ret)
platform_device_put(wm1133_ev1_snd_device);
return ret;
}
module_init(wm1133_ev1_audio_init);
static void __exit wm1133_ev1_audio_exit(void)
{
platform_device_unregister(wm1133_ev1_snd_device);
}
module_exit(wm1133_ev1_audio_exit);
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_DESCRIPTION("Audio for WM1133-EV1 on i.MX31ADS");
MODULE_LICENSE("GPL");
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