Commit b36d61d4 authored by Frank Mandarino's avatar Frank Mandarino Committed by Jaroslav Kysela
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[ALSA] soc - ASoC 0.13 WM8731 codec



This patch updates the WM8731 codec driver to the new API in ASoC 0.13.
Changes:-
o Removed DAI capabilities matching code in favour of manual matching in
the machine drivers.
o Added DAI operations for codec and CPU interfaces.
o Removed config_sysclk() function and struct snd_soc_clock_info. No
longer needed as clocking is now configured manually in the machine
drivers. Also removed other clocking data from structures.
Signed-off-by: default avatarFrank Mandarino <fmandarino@endrelia.com>
Signed-off-by: default avatarLiam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarJaroslav Kysela <perex@suse.cz>
parent 11da21a7
......@@ -30,7 +30,7 @@
#include "wm8731.h"
#define AUDIO_NAME "wm8731"
#define WM8731_VERSION "0.12"
#define WM8731_VERSION "0.13"
/*
* Debug
......@@ -53,6 +53,11 @@
struct snd_soc_codec_device soc_codec_dev_wm8731;
/* codec private data */
struct wm8731_priv {
unsigned int sysclk;
};
/*
* wm8731 register cache
* We can't read the WM8731 register space when we are
......@@ -65,191 +70,6 @@ static const u16 wm8731_reg[WM8731_CACHEREGNUM] = {
0x0000, 0x0000
};
#define WM8731_DAIFMT \
(SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_RIGHT_J | \
SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_IB_NF | \
SND_SOC_DAIFMT_IB_IF)
#define WM8731_DIR \
(SND_SOC_DAIDIR_PLAYBACK | SND_SOC_DAIDIR_CAPTURE)
#define WM8731_RATES \
(SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000 | \
SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
#define WM8731_HIFI_BITS \
(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
static struct snd_soc_dai_mode wm8731_modes[] = {
/* codec frame and clock master modes */
/* 8k */
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_8000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_RATE,
.fs = 1536,
.bfs = 64,
},
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_8000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_RATE,
.fs = 2304,
.bfs = 64,
},
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_8000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_RATE,
.fs = 1408,
.bfs = 64,
},
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_8000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_RATE,
.fs = 2112,
.bfs = 64,
},
/* 32k */
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_32000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_RATE,
.fs = 384,
.bfs = 64,
},
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_32000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_RATE,
.fs = 576,
.bfs = 64,
},
/* 44.1k & 48k */
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_RATE,
.fs = 256,
.bfs = 64,
},
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_RATE,
.fs = 384,
.bfs = 64,
},
/* 88.2 & 96k */
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_RATE,
.fs = 128,
.bfs = 64,
},
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_RATE,
.fs = 192,
.bfs = 64,
},
/* USB codec frame and clock master modes */
/* 8k */
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_8000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 1500,
.bfs = SND_SOC_FSBD(1),
},
/* 44.1k */
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_44100,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 272,
.bfs = SND_SOC_FSBD(1),
},
/* 48k */
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_48000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 250,
.bfs = SND_SOC_FSBD(1),
},
/* 88.2k */
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_88200,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 136,
.bfs = SND_SOC_FSBD(1),
},
/* 96k */
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBM_CFM,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = SNDRV_PCM_RATE_96000,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = 125,
.bfs = SND_SOC_FSBD(1),
},
/* codec frame and clock slave modes */
{
.fmt = WM8731_DAIFMT | SND_SOC_DAIFMT_CBS_CFS,
.pcmfmt = WM8731_HIFI_BITS,
.pcmrate = WM8731_RATES,
.pcmdir = WM8731_DIR,
.flags = SND_SOC_DAI_BFS_DIV,
.fs = SND_SOC_FS_ALL,
.bfs = SND_SOC_FSB_ALL,
},
};
/*
* read wm8731 register cache
*/
......@@ -471,18 +291,34 @@ static inline int get_coeff(int mclk, int rate)
return 0;
}
/* WM8731 supports numerous clocks per sample rate */
static unsigned int wm8731_config_sysclk(struct snd_soc_codec_dai *dai,
struct snd_soc_clock_info *info, unsigned int clk)
static int wm8731_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
dai->mclk = 0;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
struct snd_soc_codec *codec = socdev->codec;
struct wm8731_priv *wm8731 = codec->private_data;
u16 iface = wm8731_read_reg_cache(codec, WM8731_IFACE) & 0xfff3;
int i = get_coeff(wm8731->sysclk, params_rate(params));
u16 srate = (coeff_div[i].sr << 2) |
(coeff_div[i].bosr << 1) | coeff_div[i].usb;
/* check that the calculated FS and rate actually match a clock from
* the machine driver */
if (info->fs * info->rate == clk)
dai->mclk = clk;
wm8731_write(codec, WM8731_SRATE, srate);
/* bit size */
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S16_LE:
break;
case SNDRV_PCM_FORMAT_S20_3LE:
iface |= 0x0004;
break;
case SNDRV_PCM_FORMAT_S24_LE:
iface |= 0x0008;
break;
}
return dai->mclk;
wm8731_write(codec, WM8731_IFACE, iface);
return 0;
}
static int wm8731_pcm_prepare(struct snd_pcm_substream *substream)
......@@ -490,24 +326,76 @@ static int wm8731_pcm_prepare(struct snd_pcm_substream *substream)
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
struct snd_soc_codec *codec = socdev->codec;
u16 iface = 0, srate;
int i = get_coeff(rtd->codec_dai->mclk,
snd_soc_get_rate(rtd->codec_dai->dai_runtime.pcmrate));
/* set active */
wm8731_write(codec, WM8731_ACTIVE, 0x0001);
return 0;
}
static void wm8731_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
struct snd_soc_codec *codec = socdev->codec;
/* deactivate */
if (!codec->active) {
udelay(50);
wm8731_write(codec, WM8731_ACTIVE, 0x0);
}
}
static int wm8731_mute(struct snd_soc_codec_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
u16 mute_reg = wm8731_read_reg_cache(codec, WM8731_APDIGI) & 0xfff7;
if (mute)
wm8731_write(codec, WM8731_APDIGI, mute_reg | 0x8);
else
wm8731_write(codec, WM8731_APDIGI, mute_reg);
return 0;
}
static int wm8731_set_dai_sysclk(struct snd_soc_codec_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
struct wm8731_priv *wm8731 = codec->private_data;
switch (freq) {
case 11289600:
case 12000000:
case 12288000:
case 16934400:
case 18432000:
wm8731->sysclk = freq;
return 0;
}
return -EINVAL;
}
static int wm8731_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
unsigned int fmt)
{
struct snd_soc_codec *codec = codec_dai->codec;
u16 iface = 0;
/* set master/slave audio interface */
switch (rtd->codec_dai->dai_runtime.fmt & SND_SOC_DAIFMT_CLOCK_MASK) {
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
iface |= 0x0040;
break;
case SND_SOC_DAIFMT_CBS_CFS:
break;
default:
return -EINVAL;
}
srate = (coeff_div[i].sr << 2) |
(coeff_div[i].bosr << 1) | coeff_div[i].usb;
wm8731_write(codec, WM8731_SRATE, srate);
/* interface format */
switch (rtd->codec_dai->dai_runtime.fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
iface |= 0x0002;
break;
......@@ -522,25 +410,12 @@ static int wm8731_pcm_prepare(struct snd_pcm_substream *substream)
case SND_SOC_DAIFMT_DSP_B:
iface |= 0x0013;
break;
}
/* bit size */
switch (rtd->codec_dai->dai_runtime.pcmfmt) {
case SNDRV_PCM_FMTBIT_S16_LE:
break;
case SNDRV_PCM_FMTBIT_S20_3LE:
iface |= 0x0004;
break;
case SNDRV_PCM_FMTBIT_S24_LE:
iface |= 0x0008;
break;
case SNDRV_PCM_FMTBIT_S32_LE:
iface |= 0x000c;
break;
default:
return -EINVAL;
}
/* clock inversion */
switch (rtd->codec_dai->dai_runtime.fmt & SND_SOC_DAIFMT_INV_MASK) {
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
case SND_SOC_DAIFMT_IB_IF:
......@@ -552,37 +427,12 @@ static int wm8731_pcm_prepare(struct snd_pcm_substream *substream)
case SND_SOC_DAIFMT_NB_IF:
iface |= 0x0010;
break;
default:
return -EINVAL;
}
/* set iface */
wm8731_write(codec, WM8731_IFACE, iface);
/* set active */
wm8731_write(codec, WM8731_ACTIVE, 0x0001);
return 0;
}
static void wm8731_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
struct snd_soc_codec *codec = socdev->codec;
/* deactivate */
if (!codec->active) {
udelay(50);
wm8731_write(codec, WM8731_ACTIVE, 0x0);
}
}
static int wm8731_mute(struct snd_soc_codec *codec,
struct snd_soc_codec_dai *dai, int mute)
{
u16 mute_reg = wm8731_read_reg_cache(codec, WM8731_APDIGI) & 0xfff7;
if (mute)
wm8731_write(codec, WM8731_APDIGI, mute_reg | 0x8);
else
wm8731_write(codec, WM8731_APDIGI, mute_reg);
return 0;
}
......@@ -612,28 +462,39 @@ static int wm8731_dapm_event(struct snd_soc_codec *codec, int event)
return 0;
}
#define WM8731_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
SNDRV_PCM_RATE_96000)
#define WM8731_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE)
struct snd_soc_codec_dai wm8731_dai = {
.name = "WM8731",
.playback = {
.stream_name = "Playback",
.channels_min = 1,
.channels_max = 2,
},
.rates = WM8731_RATES,
.formats = WM8731_FORMATS,},
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
},
.config_sysclk = wm8731_config_sysclk,
.digital_mute = wm8731_mute,
.rates = WM8731_RATES,
.formats = WM8731_FORMATS,},
.ops = {
.prepare = wm8731_pcm_prepare,
.hw_params = wm8731_hw_params,
.shutdown = wm8731_shutdown,
},
.caps = {
.num_modes = ARRAY_SIZE(wm8731_modes),
.mode = wm8731_modes,
},
.dai_ops = {
.digital_mute = wm8731_mute,
.set_sysclk = wm8731_set_dai_sysclk,
.set_fmt = wm8731_set_dai_fmt,
}
};
EXPORT_SYMBOL_GPL(wm8731_dai);
......@@ -683,7 +544,6 @@ static int wm8731_init(struct snd_soc_device *socdev)
codec->dai = &wm8731_dai;
codec->num_dai = 1;
codec->reg_cache_size = ARRAY_SIZE(wm8731_reg);
codec->reg_cache =
kzalloc(sizeof(u16) * ARRAY_SIZE(wm8731_reg), GFP_KERNEL);
if (codec->reg_cache == NULL)
......@@ -832,6 +692,7 @@ static int wm8731_probe(struct platform_device *pdev)
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct wm8731_setup_data *setup;
struct snd_soc_codec *codec;
struct wm8731_priv *wm8731;
int ret = 0;
info("WM8731 Audio Codec %s", WM8731_VERSION);
......@@ -841,6 +702,13 @@ static int wm8731_probe(struct platform_device *pdev)
if (codec == NULL)
return -ENOMEM;
wm8731 = kzalloc(sizeof(struct wm8731_priv), GFP_KERNEL);
if (wm8731 == NULL) {
kfree(codec);
return -ENOMEM;
}
codec->private_data = wm8731;
socdev->codec = codec;
mutex_init(&codec->mutex);
INIT_LIST_HEAD(&codec->dapm_widgets);
......@@ -875,6 +743,7 @@ static int wm8731_remove(struct platform_device *pdev)
#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
i2c_del_driver(&wm8731_i2c_driver);
#endif
kfree(codec->private_data);
kfree(codec);
return 0;
......
......@@ -31,6 +31,9 @@
#define WM8731_CACHEREGNUM 10
#define WM8731_SYSCLK 0
#define WM8731_DAI 0
struct wm8731_setup_data {
unsigned short i2c_address;
};
......
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