d3ff5a3e61
Making room for namespace for the PCM Controller driver the platform driver(s3c24xx-pcm) has been renamed to SoC agnostic name 's3c-dma'. Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Acked-by: Ben Dooks <ben-linux@fluff.org> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
499 lines
12 KiB
C
499 lines
12 KiB
C
/*
|
|
* neo1973_gta02_wm8753.c -- SoC audio for Openmoko Freerunner(GTA02)
|
|
*
|
|
* Copyright 2007 Openmoko Inc
|
|
* Author: Graeme Gregory <graeme@openmoko.org>
|
|
* Copyright 2007 Wolfson Microelectronics PLC.
|
|
* Author: Graeme Gregory <linux@wolfsonmicro.com>
|
|
* Copyright 2009 Wolfson Microelectronics
|
|
*
|
|
* 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/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/gpio.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/soc.h>
|
|
#include <sound/soc-dapm.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
|
|
#include <plat/regs-iis.h>
|
|
|
|
#include <mach/regs-clock.h>
|
|
#include <asm/io.h>
|
|
#include <mach/gta02.h>
|
|
#include "../codecs/wm8753.h"
|
|
#include "s3c-dma.h"
|
|
#include "s3c24xx-i2s.h"
|
|
|
|
static struct snd_soc_card neo1973_gta02;
|
|
|
|
static int neo1973_gta02_hifi_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->dai->codec_dai;
|
|
struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
|
|
unsigned int pll_out = 0, bclk = 0;
|
|
int ret = 0;
|
|
unsigned long iis_clkrate;
|
|
|
|
iis_clkrate = s3c24xx_i2s_get_clockrate();
|
|
|
|
switch (params_rate(params)) {
|
|
case 8000:
|
|
case 16000:
|
|
pll_out = 12288000;
|
|
break;
|
|
case 48000:
|
|
bclk = WM8753_BCLK_DIV_4;
|
|
pll_out = 12288000;
|
|
break;
|
|
case 96000:
|
|
bclk = WM8753_BCLK_DIV_2;
|
|
pll_out = 12288000;
|
|
break;
|
|
case 11025:
|
|
bclk = WM8753_BCLK_DIV_16;
|
|
pll_out = 11289600;
|
|
break;
|
|
case 22050:
|
|
bclk = WM8753_BCLK_DIV_8;
|
|
pll_out = 11289600;
|
|
break;
|
|
case 44100:
|
|
bclk = WM8753_BCLK_DIV_4;
|
|
pll_out = 11289600;
|
|
break;
|
|
case 88200:
|
|
bclk = WM8753_BCLK_DIV_2;
|
|
pll_out = 11289600;
|
|
break;
|
|
}
|
|
|
|
/* set codec DAI configuration */
|
|
ret = snd_soc_dai_set_fmt(codec_dai,
|
|
SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* set cpu DAI configuration */
|
|
ret = snd_soc_dai_set_fmt(cpu_dai,
|
|
SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
|
|
SND_SOC_DAIFMT_CBM_CFM);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* set the codec system clock for DAC and ADC */
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
|
|
SND_SOC_CLOCK_IN);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* set MCLK division for sample rate */
|
|
ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
|
|
S3C2410_IISMOD_32FS);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* set codec BCLK division for sample rate */
|
|
ret = snd_soc_dai_set_clkdiv(codec_dai,
|
|
WM8753_BCLKDIV, bclk);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* set prescaler division for sample rate */
|
|
ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
|
|
S3C24XX_PRESCALE(4, 4));
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* codec PLL input is PCLK/4 */
|
|
ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
|
|
iis_clkrate / 4, pll_out);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int neo1973_gta02_hifi_hw_free(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
|
|
|
|
/* disable the PLL */
|
|
return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
|
|
}
|
|
|
|
/*
|
|
* Neo1973 WM8753 HiFi DAI opserations.
|
|
*/
|
|
static struct snd_soc_ops neo1973_gta02_hifi_ops = {
|
|
.hw_params = neo1973_gta02_hifi_hw_params,
|
|
.hw_free = neo1973_gta02_hifi_hw_free,
|
|
};
|
|
|
|
static int neo1973_gta02_voice_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->dai->codec_dai;
|
|
unsigned int pcmdiv = 0;
|
|
int ret = 0;
|
|
unsigned long iis_clkrate;
|
|
|
|
iis_clkrate = s3c24xx_i2s_get_clockrate();
|
|
|
|
if (params_rate(params) != 8000)
|
|
return -EINVAL;
|
|
if (params_channels(params) != 1)
|
|
return -EINVAL;
|
|
|
|
pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
|
|
|
|
/* todo: gg check mode (DSP_B) against CSR datasheet */
|
|
/* set codec DAI configuration */
|
|
ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
|
|
SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* set the codec system clock for DAC and ADC */
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK,
|
|
12288000, SND_SOC_CLOCK_IN);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* set codec PCM division for sample rate */
|
|
ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV,
|
|
pcmdiv);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* configue and enable PLL for 12.288MHz output */
|
|
ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
|
|
iis_clkrate / 4, 12288000);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int neo1973_gta02_voice_hw_free(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
|
|
|
|
/* disable the PLL */
|
|
return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
|
|
}
|
|
|
|
static struct snd_soc_ops neo1973_gta02_voice_ops = {
|
|
.hw_params = neo1973_gta02_voice_hw_params,
|
|
.hw_free = neo1973_gta02_voice_hw_free,
|
|
};
|
|
|
|
#define LM4853_AMP 1
|
|
#define LM4853_SPK 2
|
|
|
|
static u8 lm4853_state;
|
|
|
|
/* This has no effect, it exists only to maintain compatibility with
|
|
* existing ALSA state files.
|
|
*/
|
|
static int lm4853_set_state(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
int val = ucontrol->value.integer.value[0];
|
|
|
|
if (val)
|
|
lm4853_state |= LM4853_AMP;
|
|
else
|
|
lm4853_state &= ~LM4853_AMP;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lm4853_get_state(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
ucontrol->value.integer.value[0] = lm4853_state & LM4853_AMP;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
int val = ucontrol->value.integer.value[0];
|
|
|
|
if (val) {
|
|
lm4853_state |= LM4853_SPK;
|
|
gpio_set_value(GTA02_GPIO_HP_IN, 0);
|
|
} else {
|
|
lm4853_state &= ~LM4853_SPK;
|
|
gpio_set_value(GTA02_GPIO_HP_IN, 1);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lm4853_get_spk(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
ucontrol->value.integer.value[0] = (lm4853_state & LM4853_SPK) >> 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int lm4853_event(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *k,
|
|
int event)
|
|
{
|
|
gpio_set_value(GTA02_GPIO_AMP_SHUT, SND_SOC_DAPM_EVENT_OFF(value));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
|
|
SND_SOC_DAPM_SPK("Stereo Out", lm4853_event),
|
|
SND_SOC_DAPM_LINE("GSM Line Out", NULL),
|
|
SND_SOC_DAPM_LINE("GSM Line In", NULL),
|
|
SND_SOC_DAPM_MIC("Headset Mic", NULL),
|
|
SND_SOC_DAPM_MIC("Handset Mic", NULL),
|
|
SND_SOC_DAPM_SPK("Handset Spk", NULL),
|
|
};
|
|
|
|
|
|
/* example machine audio_mapnections */
|
|
static const struct snd_soc_dapm_route audio_map[] = {
|
|
|
|
/* Connections to the lm4853 amp */
|
|
{"Stereo Out", NULL, "LOUT1"},
|
|
{"Stereo Out", NULL, "ROUT1"},
|
|
|
|
/* Connections to the GSM Module */
|
|
{"GSM Line Out", NULL, "MONO1"},
|
|
{"GSM Line Out", NULL, "MONO2"},
|
|
{"RXP", NULL, "GSM Line In"},
|
|
{"RXN", NULL, "GSM Line In"},
|
|
|
|
/* Connections to Headset */
|
|
{"MIC1", NULL, "Mic Bias"},
|
|
{"Mic Bias", NULL, "Headset Mic"},
|
|
|
|
/* Call Mic */
|
|
{"MIC2", NULL, "Mic Bias"},
|
|
{"MIC2N", NULL, "Mic Bias"},
|
|
{"Mic Bias", NULL, "Handset Mic"},
|
|
|
|
/* Call Speaker */
|
|
{"Handset Spk", NULL, "LOUT2"},
|
|
{"Handset Spk", NULL, "ROUT2"},
|
|
|
|
/* Connect the ALC pins */
|
|
{"ACIN", NULL, "ACOP"},
|
|
};
|
|
|
|
static const struct snd_kcontrol_new wm8753_neo1973_gta02_controls[] = {
|
|
SOC_DAPM_PIN_SWITCH("Stereo Out"),
|
|
SOC_DAPM_PIN_SWITCH("GSM Line Out"),
|
|
SOC_DAPM_PIN_SWITCH("GSM Line In"),
|
|
SOC_DAPM_PIN_SWITCH("Headset Mic"),
|
|
SOC_DAPM_PIN_SWITCH("Handset Mic"),
|
|
SOC_DAPM_PIN_SWITCH("Handset Spk"),
|
|
|
|
/* This has no effect, it exists only to maintain compatibility with
|
|
* existing ALSA state files.
|
|
*/
|
|
SOC_SINGLE_EXT("Amp State Switch", 6, 0, 1, 0,
|
|
lm4853_get_state,
|
|
lm4853_set_state),
|
|
SOC_SINGLE_EXT("Amp Spk Switch", 7, 0, 1, 0,
|
|
lm4853_get_spk,
|
|
lm4853_set_spk),
|
|
};
|
|
|
|
/*
|
|
* This is an example machine initialisation for a wm8753 connected to a
|
|
* neo1973 GTA02.
|
|
*/
|
|
static int neo1973_gta02_wm8753_init(struct snd_soc_codec *codec)
|
|
{
|
|
int err;
|
|
|
|
/* set up NC codec pins */
|
|
snd_soc_dapm_nc_pin(codec, "OUT3");
|
|
snd_soc_dapm_nc_pin(codec, "OUT4");
|
|
snd_soc_dapm_nc_pin(codec, "LINE1");
|
|
snd_soc_dapm_nc_pin(codec, "LINE2");
|
|
|
|
/* Add neo1973 gta02 specific widgets */
|
|
snd_soc_dapm_new_controls(codec, wm8753_dapm_widgets,
|
|
ARRAY_SIZE(wm8753_dapm_widgets));
|
|
|
|
/* add neo1973 gta02 specific controls */
|
|
err = snd_soc_add_controls(codec, wm8753_neo1973_gta02_controls,
|
|
ARRAY_SIZE(wm8753_neo1973_gta02_controls));
|
|
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* set up neo1973 gta02 specific audio path audio_map */
|
|
snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
|
|
|
|
/* set endpoints to default off mode */
|
|
snd_soc_dapm_disable_pin(codec, "Stereo Out");
|
|
snd_soc_dapm_disable_pin(codec, "GSM Line Out");
|
|
snd_soc_dapm_disable_pin(codec, "GSM Line In");
|
|
snd_soc_dapm_disable_pin(codec, "Headset Mic");
|
|
snd_soc_dapm_disable_pin(codec, "Handset Mic");
|
|
snd_soc_dapm_disable_pin(codec, "Handset Spk");
|
|
|
|
snd_soc_dapm_sync(codec);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* BT Codec DAI
|
|
*/
|
|
static struct snd_soc_dai bt_dai = {
|
|
.name = "Bluetooth",
|
|
.id = 0,
|
|
.playback = {
|
|
.channels_min = 1,
|
|
.channels_max = 1,
|
|
.rates = SNDRV_PCM_RATE_8000,
|
|
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
|
|
.capture = {
|
|
.channels_min = 1,
|
|
.channels_max = 1,
|
|
.rates = SNDRV_PCM_RATE_8000,
|
|
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
|
|
};
|
|
|
|
static struct snd_soc_dai_link neo1973_gta02_dai[] = {
|
|
{ /* Hifi Playback - for similatious use with voice below */
|
|
.name = "WM8753",
|
|
.stream_name = "WM8753 HiFi",
|
|
.cpu_dai = &s3c24xx_i2s_dai,
|
|
.codec_dai = &wm8753_dai[WM8753_DAI_HIFI],
|
|
.init = neo1973_gta02_wm8753_init,
|
|
.ops = &neo1973_gta02_hifi_ops,
|
|
},
|
|
{ /* Voice via BT */
|
|
.name = "Bluetooth",
|
|
.stream_name = "Voice",
|
|
.cpu_dai = &bt_dai,
|
|
.codec_dai = &wm8753_dai[WM8753_DAI_VOICE],
|
|
.ops = &neo1973_gta02_voice_ops,
|
|
},
|
|
};
|
|
|
|
static struct snd_soc_card neo1973_gta02 = {
|
|
.name = "neo1973-gta02",
|
|
.platform = &s3c24xx_soc_platform,
|
|
.dai_link = neo1973_gta02_dai,
|
|
.num_links = ARRAY_SIZE(neo1973_gta02_dai),
|
|
};
|
|
|
|
static struct snd_soc_device neo1973_gta02_snd_devdata = {
|
|
.card = &neo1973_gta02,
|
|
.codec_dev = &soc_codec_dev_wm8753,
|
|
};
|
|
|
|
static struct platform_device *neo1973_gta02_snd_device;
|
|
|
|
static int __init neo1973_gta02_init(void)
|
|
{
|
|
int ret;
|
|
|
|
if (!machine_is_neo1973_gta02()) {
|
|
printk(KERN_INFO
|
|
"Only GTA02 is supported by this ASoC driver\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* register bluetooth DAI here */
|
|
ret = snd_soc_register_dai(&bt_dai);
|
|
if (ret)
|
|
return ret;
|
|
|
|
neo1973_gta02_snd_device = platform_device_alloc("soc-audio", -1);
|
|
if (!neo1973_gta02_snd_device)
|
|
return -ENOMEM;
|
|
|
|
platform_set_drvdata(neo1973_gta02_snd_device,
|
|
&neo1973_gta02_snd_devdata);
|
|
neo1973_gta02_snd_devdata.dev = &neo1973_gta02_snd_device->dev;
|
|
ret = platform_device_add(neo1973_gta02_snd_device);
|
|
|
|
if (ret) {
|
|
platform_device_put(neo1973_gta02_snd_device);
|
|
return ret;
|
|
}
|
|
|
|
/* Initialise GPIOs used by amp */
|
|
ret = gpio_request(GTA02_GPIO_HP_IN, "GTA02_HP_IN");
|
|
if (ret) {
|
|
pr_err("gta02_wm8753: Failed to register GPIO %d\n", GTA02_GPIO_HP_IN);
|
|
goto err_unregister_device;
|
|
}
|
|
|
|
ret = gpio_direction_output(GTA02_GPIO_AMP_HP_IN, 1);
|
|
if (ret) {
|
|
pr_err("gta02_wm8753: Failed to configure GPIO %d\n", GTA02_GPIO_HP_IN);
|
|
goto err_free_gpio_hp_in;
|
|
}
|
|
|
|
ret = gpio_request(GTA02_GPIO_AMP_SHUT, "GTA02_AMP_SHUT");
|
|
if (ret) {
|
|
pr_err("gta02_wm8753: Failed to register GPIO %d\n", GTA02_GPIO_AMP_SHUT);
|
|
goto err_free_gpio_hp_in;
|
|
}
|
|
|
|
ret = gpio_direction_output(GTA02_GPIO_AMP_SHUT, 1);
|
|
if (ret) {
|
|
pr_err("gta02_wm8753: Failed to configure GPIO %d\n", GTA02_GPIO_AMP_SHUT);
|
|
goto err_free_gpio_amp_shut;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_free_gpio_amp_shut:
|
|
gpio_free(GTA02_GPIO_AMP_SHUT);
|
|
err_free_gpio_hp_in:
|
|
gpio_free(GTA02_GPIO_HP_IN);
|
|
err_unregister_device:
|
|
platform_device_unregister(neo1973_gta02_snd_device);
|
|
return ret;
|
|
}
|
|
module_init(neo1973_gta02_init);
|
|
|
|
static void __exit neo1973_gta02_exit(void)
|
|
{
|
|
snd_soc_unregister_dai(&bt_dai);
|
|
platform_device_unregister(neo1973_gta02_snd_device);
|
|
gpio_free(GTA02_GPIO_HP_IN);
|
|
gpio_free(GTA02_GPIO_AMP_SHUT);
|
|
}
|
|
module_exit(neo1973_gta02_exit);
|
|
|
|
/* Module information */
|
|
MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org");
|
|
MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 GTA02");
|
|
MODULE_LICENSE("GPL");
|