#include "wm8731.h"
#define AUDIO_NAME "wm8731"
-#define WM8731_VERSION "0.12"
+#define WM8731_VERSION "0.13"
/*
* Debug
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
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
*/
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)
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;
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:
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;
}
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);
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)
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);
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);
#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
i2c_del_driver(&wm8731_i2c_driver);
#endif
+ kfree(codec->private_data);
kfree(codec);
return 0;
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