forked from Minki/linux
40d2482993
Signed-off-by: Jassi Brar <jassi.brar@samsung.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
293 lines
7.1 KiB
C
293 lines
7.1 KiB
C
/*
|
|
* smdk_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 <asm/mach-types.h>
|
|
|
|
#include "../codecs/wm8580.h"
|
|
#include "dma.h"
|
|
#include "i2s.h"
|
|
|
|
/*
|
|
* Default CFG switch settings to use this driver:
|
|
*
|
|
* SMDK6410: Set CFG1 1-3 Off, CFG2 1-4 On
|
|
*/
|
|
|
|
/* SMDK has a 12MHZ crystal attached to WM8580 */
|
|
#define SMDK_WM8580_FREQ 12000000
|
|
|
|
static int smdk_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->cpu_dai;
|
|
struct snd_soc_dai *codec_dai = rtd->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;
|
|
|
|
/* 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;
|
|
|
|
ret = snd_soc_dai_set_pll(codec_dai, WM8580_PLLA, 0,
|
|
SMDK_WM8580_FREQ, pll_out);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, WM8580_CLKSRC_PLLA,
|
|
pll_out, SND_SOC_CLOCK_IN);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* SMDK WM8580 DAI operations.
|
|
*/
|
|
static struct snd_soc_ops smdk_ops = {
|
|
.hw_params = smdk_hw_params,
|
|
};
|
|
|
|
/* SMDK Playback widgets */
|
|
static const struct snd_soc_dapm_widget wm8580_dapm_widgets_pbk[] = {
|
|
SND_SOC_DAPM_HP("Front", NULL),
|
|
SND_SOC_DAPM_HP("Center+Sub", NULL),
|
|
SND_SOC_DAPM_HP("Rear", NULL),
|
|
};
|
|
|
|
/* SMDK 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", NULL, "VOUT1L"},
|
|
{"Front", NULL, "VOUT1R"},
|
|
|
|
/* Center/Sub are fed VOUT2L/R */
|
|
{"Center+Sub", NULL, "VOUT2L"},
|
|
{"Center+Sub", NULL, "VOUT2R"},
|
|
|
|
/* Rear Left/Right are fed VOUT3L/R */
|
|
{"Rear", NULL, "VOUT3L"},
|
|
{"Rear", NULL, "VOUT3R"},
|
|
};
|
|
|
|
static int smdk_wm8580_init_paiftx(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct snd_soc_codec *codec = rtd->codec;
|
|
struct snd_soc_dapm_context *dapm = &codec->dapm;
|
|
|
|
/* Add smdk specific Capture widgets */
|
|
snd_soc_dapm_new_controls(dapm, wm8580_dapm_widgets_cpt,
|
|
ARRAY_SIZE(wm8580_dapm_widgets_cpt));
|
|
|
|
/* Set up PAIFTX audio path */
|
|
snd_soc_dapm_add_routes(dapm, 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(dapm, "MicIn");
|
|
|
|
/* signal a DAPM event */
|
|
snd_soc_dapm_sync(dapm);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int smdk_wm8580_init_paifrx(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct snd_soc_codec *codec = rtd->codec;
|
|
struct snd_soc_dapm_context *dapm = &codec->dapm;
|
|
|
|
/* Add smdk specific Playback widgets */
|
|
snd_soc_dapm_new_controls(dapm, wm8580_dapm_widgets_pbk,
|
|
ARRAY_SIZE(wm8580_dapm_widgets_pbk));
|
|
|
|
/* Set up PAIFRX audio path */
|
|
snd_soc_dapm_add_routes(dapm, audio_map_rx, ARRAY_SIZE(audio_map_rx));
|
|
|
|
/* signal a DAPM event */
|
|
snd_soc_dapm_sync(dapm);
|
|
|
|
return 0;
|
|
}
|
|
|
|
enum {
|
|
PRI_PLAYBACK = 0,
|
|
PRI_CAPTURE,
|
|
SEC_PLAYBACK,
|
|
};
|
|
|
|
static struct snd_soc_dai_link smdk_dai[] = {
|
|
[PRI_PLAYBACK] = { /* Primary Playback i/f */
|
|
.name = "WM8580 PAIF RX",
|
|
.stream_name = "Playback",
|
|
.cpu_dai_name = "samsung-i2s.0",
|
|
.codec_dai_name = "wm8580-hifi-playback",
|
|
.platform_name = "samsung-audio",
|
|
.codec_name = "wm8580-codec.0-001b",
|
|
.init = smdk_wm8580_init_paifrx,
|
|
.ops = &smdk_ops,
|
|
},
|
|
[PRI_CAPTURE] = { /* Primary Capture i/f */
|
|
.name = "WM8580 PAIF TX",
|
|
.stream_name = "Capture",
|
|
.cpu_dai_name = "samsung-i2s.0",
|
|
.codec_dai_name = "wm8580-hifi-capture",
|
|
.platform_name = "samsung-audio",
|
|
.codec_name = "wm8580-codec.0-001b",
|
|
.init = smdk_wm8580_init_paiftx,
|
|
.ops = &smdk_ops,
|
|
},
|
|
[SEC_PLAYBACK] = { /* Sec_Fifo Playback i/f */
|
|
.name = "Sec_FIFO TX",
|
|
.stream_name = "Playback",
|
|
.cpu_dai_name = "samsung-i2s.x",
|
|
.codec_dai_name = "wm8580-hifi-playback",
|
|
.platform_name = "samsung-audio",
|
|
.codec_name = "wm8580-codec.0-001b",
|
|
.init = smdk_wm8580_init_paifrx,
|
|
.ops = &smdk_ops,
|
|
},
|
|
};
|
|
|
|
static struct snd_soc_card smdk = {
|
|
.name = "SMDK-I2S",
|
|
.dai_link = smdk_dai,
|
|
.num_links = 2,
|
|
};
|
|
|
|
static struct platform_device *smdk_snd_device;
|
|
|
|
static int __init smdk_audio_init(void)
|
|
{
|
|
int ret;
|
|
char *str;
|
|
|
|
if (machine_is_smdkc100() || machine_is_smdk6442()
|
|
|| machine_is_smdkv210() || machine_is_smdkc110()) {
|
|
smdk.num_links = 3;
|
|
/* Secondary is at offset SAMSUNG_I2S_SECOFF from Primary */
|
|
str = (char *)smdk_dai[SEC_PLAYBACK].cpu_dai_name;
|
|
str[strlen(str) - 1] = '0' + SAMSUNG_I2S_SECOFF;
|
|
} else if (machine_is_smdk6410()) {
|
|
str = (char *)smdk_dai[PRI_PLAYBACK].cpu_dai_name;
|
|
str[strlen(str) - 1] = '2';
|
|
str = (char *)smdk_dai[PRI_CAPTURE].cpu_dai_name;
|
|
str[strlen(str) - 1] = '2';
|
|
}
|
|
|
|
smdk_snd_device = platform_device_alloc("soc-audio", -1);
|
|
if (!smdk_snd_device)
|
|
return -ENOMEM;
|
|
|
|
platform_set_drvdata(smdk_snd_device, &smdk);
|
|
ret = platform_device_add(smdk_snd_device);
|
|
|
|
if (ret)
|
|
platform_device_put(smdk_snd_device);
|
|
|
|
return ret;
|
|
}
|
|
module_init(smdk_audio_init);
|
|
|
|
static void __exit smdk_audio_exit(void)
|
|
{
|
|
platform_device_unregister(smdk_snd_device);
|
|
}
|
|
module_exit(smdk_audio_exit);
|
|
|
|
MODULE_AUTHOR("Jaswinder Singh, jassi.brar@samsung.com");
|
|
MODULE_DESCRIPTION("ALSA SoC SMDK WM8580");
|
|
MODULE_LICENSE("GPL");
|