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linux/sound/soc/s3c24xx/smdk64xx_wm8580.c
Jassi Brar d0bbc24d2a ASoC: SMDK64XX: Switch to IISv4 CPU driver 
Switch the MACHINE driver to use IISv4 CPU dai.
Remove BROKEN dependency now that we have proper CPU driver available.
Also, disable build for SMDK6400, since the S3C6400 doesn't have IISv4
controller.

Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-05-07 16:46:06 +01:00

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/*
* smdk64xx_wm8580.c
*
* Copyright (c) 2009 Samsung Electronics Co. Ltd
* Author: Jaswinder Singh <jassi.brar@samsung.com>
*
* 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 <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include "../codecs/wm8580.h"
#include "s3c-dma.h"
#include "s3c64xx-i2s.h"
/* SMDK64XX has a 12MHZ crystal attached to WM8580 */
#define SMDK64XX_WM8580_FREQ 12000000
static int smdk64xx_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 *cpu_dai = rtd->dai->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
unsigned int pll_out;
int bfs, rfs, ret;
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_U8:
case SNDRV_PCM_FORMAT_S8:
bfs = 16;
break;
case SNDRV_PCM_FORMAT_U16_LE:
case SNDRV_PCM_FORMAT_S16_LE:
bfs = 32;
break;
default:
return -EINVAL;
}
/* The Fvco for WM8580 PLLs must fall within [90,100]MHz.
* This criterion can't be met if we request PLL output
* as {8000x256, 64000x256, 11025x256}Hz.
* As a wayout, we rather change rfs to a minimum value that
* results in (params_rate(params) * rfs), and itself, acceptable
* to both - the CODEC and the CPU.
*/
switch (params_rate(params)) {
case 16000:
case 22050:
case 32000:
case 44100:
case 48000:
case 88200:
case 96000:
rfs = 256;
break;
case 64000:
rfs = 384;
break;
case 8000:
case 11025:
rfs = 512;
break;
default:
return -EINVAL;
}
pll_out = params_rate(params) * rfs;
/* Set the 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 the AP 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;
ret = snd_soc_dai_set_sysclk(cpu_dai, S3C64XX_CLKSRC_CDCLK,
0, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
/* We use PCLK for basic ops in SoC-Slave mode */
ret = snd_soc_dai_set_sysclk(cpu_dai, S3C64XX_CLKSRC_PCLK,
0, SND_SOC_CLOCK_IN);
if (ret < 0)
return ret;
/* Set WM8580 to drive MCLK from its PLLA */
ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_MCLK,
WM8580_CLKSRC_PLLA);
if (ret < 0)
return ret;
/* Explicitly set WM8580-DAC to source from MCLK */
ret = snd_soc_dai_set_clkdiv(codec_dai, WM8580_DAC_CLKSEL,
WM8580_CLKSRC_MCLK);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_pll(codec_dai, WM8580_PLLA, 0,
SMDK64XX_WM8580_FREQ, pll_out);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_I2SV2_DIV_BCLK, bfs);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_I2SV2_DIV_RCLK, rfs);
if (ret < 0)
return ret;
return 0;
}
/*
* SMDK64XX WM8580 DAI operations.
*/
static struct snd_soc_ops smdk64xx_ops = {
.hw_params = smdk64xx_hw_params,
};
/* SMDK64xx Playback widgets */
static const struct snd_soc_dapm_widget wm8580_dapm_widgets_pbk[] = {
SND_SOC_DAPM_HP("Front-L/R", NULL),
SND_SOC_DAPM_HP("Center/Sub", NULL),
SND_SOC_DAPM_HP("Rear-L/R", NULL),
};
/* SMDK64xx Capture widgets */
static const struct snd_soc_dapm_widget wm8580_dapm_widgets_cpt[] = {
SND_SOC_DAPM_MIC("MicIn", NULL),
SND_SOC_DAPM_LINE("LineIn", NULL),
};
/* SMDK-PAIFTX connections */
static const struct snd_soc_dapm_route audio_map_tx[] = {
/* MicIn feeds AINL */
{"AINL", NULL, "MicIn"},
/* LineIn feeds AINL/R */
{"AINL", NULL, "LineIn"},
{"AINR", NULL, "LineIn"},
};
/* SMDK-PAIFRX connections */
static const struct snd_soc_dapm_route audio_map_rx[] = {
/* Front Left/Right are fed VOUT1L/R */
{"Front-L/R", NULL, "VOUT1L"},
{"Front-L/R", NULL, "VOUT1R"},
/* Center/Sub are fed VOUT2L/R */
{"Center/Sub", NULL, "VOUT2L"},
{"Center/Sub", NULL, "VOUT2R"},
/* Rear Left/Right are fed VOUT3L/R */
{"Rear-L/R", NULL, "VOUT3L"},
{"Rear-L/R", NULL, "VOUT3R"},
};
static int smdk64xx_wm8580_init_paiftx(struct snd_soc_codec *codec)
{
/* Add smdk64xx specific Capture widgets */
snd_soc_dapm_new_controls(codec, wm8580_dapm_widgets_cpt,
ARRAY_SIZE(wm8580_dapm_widgets_cpt));
/* Set up PAIFTX audio path */
snd_soc_dapm_add_routes(codec, audio_map_tx, ARRAY_SIZE(audio_map_tx));
/* Enabling the microphone requires the fitting of a 0R
* resistor to connect the line from the microphone jack.
*/
snd_soc_dapm_disable_pin(codec, "MicIn");
/* signal a DAPM event */
snd_soc_dapm_sync(codec);
return 0;
}
static int smdk64xx_wm8580_init_paifrx(struct snd_soc_codec *codec)
{
/* Add smdk64xx specific Playback widgets */
snd_soc_dapm_new_controls(codec, wm8580_dapm_widgets_pbk,
ARRAY_SIZE(wm8580_dapm_widgets_pbk));
/* Set up PAIFRX audio path */
snd_soc_dapm_add_routes(codec, audio_map_rx, ARRAY_SIZE(audio_map_rx));
/* signal a DAPM event */
snd_soc_dapm_sync(codec);
return 0;
}
static struct snd_soc_dai_link smdk64xx_dai[] = {
{ /* Primary Playback i/f */
.name = "WM8580 PAIF RX",
.stream_name = "Playback",
.cpu_dai = &s3c64xx_i2s_v4_dai,
.codec_dai = &wm8580_dai[WM8580_DAI_PAIFRX],
.init = smdk64xx_wm8580_init_paifrx,
.ops = &smdk64xx_ops,
},
{ /* Primary Capture i/f */
.name = "WM8580 PAIF TX",
.stream_name = "Capture",
.cpu_dai = &s3c64xx_i2s_v4_dai,
.codec_dai = &wm8580_dai[WM8580_DAI_PAIFTX],
.init = smdk64xx_wm8580_init_paiftx,
.ops = &smdk64xx_ops,
},
};
static struct snd_soc_card smdk64xx = {
.name = "smdk64xx",
.platform = &s3c24xx_soc_platform,
.dai_link = smdk64xx_dai,
.num_links = ARRAY_SIZE(smdk64xx_dai),
};
static struct snd_soc_device smdk64xx_snd_devdata = {
.card = &smdk64xx,
.codec_dev = &soc_codec_dev_wm8580,
};
static struct platform_device *smdk64xx_snd_device;
static int __init smdk64xx_audio_init(void)
{
int ret;
smdk64xx_snd_device = platform_device_alloc("soc-audio", -1);
if (!smdk64xx_snd_device)
return -ENOMEM;
platform_set_drvdata(smdk64xx_snd_device, &smdk64xx_snd_devdata);
smdk64xx_snd_devdata.dev = &smdk64xx_snd_device->dev;
ret = platform_device_add(smdk64xx_snd_device);
if (ret)
platform_device_put(smdk64xx_snd_device);
return ret;
}
module_init(smdk64xx_audio_init);
MODULE_AUTHOR("Jaswinder Singh, jassi.brar@samsung.com");
MODULE_DESCRIPTION("ALSA SoC SMDK64XX WM8580");
MODULE_LICENSE("GPL");
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