diff options
Diffstat (limited to 'sound/soc/codecs/wm8750.c')
| -rw-r--r-- | sound/soc/codecs/wm8750.c | 446 |
1 files changed, 111 insertions, 335 deletions
diff --git a/sound/soc/codecs/wm8750.c b/sound/soc/codecs/wm8750.c index d4a288b..c1ffb61 100644 --- a/sound/soc/codecs/wm8750.c +++ b/sound/soc/codecs/wm8750.c @@ -30,7 +30,7 @@ #include "wm8750.h" #define AUDIO_NAME "WM8750" -#define WM8750_VERSION "0.11" +#define WM8750_VERSION "0.12" /* * Debug @@ -51,6 +51,11 @@ #define warn(format, arg...) \ printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg) +/* codec private data */ +struct wm8750_priv { + unsigned int sysclk; +}; + /* * wm8750 register cache * We can't read the WM8750 register space when we @@ -70,280 +75,6 @@ static const u16 wm8750_reg[] = { 0x0079, 0x0079, 0x0079, /* 40 */ }; -#define WM8750_HIFI_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 WM8750_DIR \ - (SND_SOC_DAIDIR_PLAYBACK | SND_SOC_DAIDIR_CAPTURE) - -#define WM8750_HIFI_FSB \ - (SND_SOC_FSBD(1) | SND_SOC_FSBD(2) | SND_SOC_FSBD(4) | \ - SND_SOC_FSBD(8) | SND_SOC_FSBD(16)) - -#define WM8750_HIFI_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 WM8750_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 wm8750_modes[] = { - /* common codec frame and clock master modes */ - /* 8k */ - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_8000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 1536, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_8000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 1408, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_8000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 2304, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_8000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 2112, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_8000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 1500, - .bfs = WM8750_HIFI_FSB, - }, - - /* 11.025k */ - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_11025, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 1024, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_11025, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 1536, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_11025, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 1088, - .bfs = WM8750_HIFI_FSB, - }, - - /* 16k */ - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_16000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 768, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_16000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 1152, - .bfs = WM8750_HIFI_FSB - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_16000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 750, - .bfs = WM8750_HIFI_FSB, - }, - - /* 22.05k */ - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_22050, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 512, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_22050, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 768, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_22050, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 544, - .bfs = WM8750_HIFI_FSB, - }, - - /* 32k */ - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_32000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 384, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_32000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 576, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_32000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 375, - .bfs = WM8750_HIFI_FSB, - }, - - /* 44.1k & 48k */ - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 256, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 384, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_44100, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 272, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_48000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 250, - .bfs = WM8750_HIFI_FSB, - }, - - /* 88.2k & 96k */ - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 128, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 192, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_88200, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 136, - .bfs = WM8750_HIFI_FSB, - }, - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBM_CFM, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = SNDRV_PCM_RATE_96000, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = 125, - .bfs = WM8750_HIFI_FSB, - }, - - /* codec frame and clock slave modes */ - { - .fmt = WM8750_HIFI_DAIFMT | SND_SOC_DAIFMT_CBS_CFS, - .pcmfmt = WM8750_HIFI_BITS, - .pcmrate = WM8750_HIFI_RATES, - .pcmdir = WM8750_DIR, - .flags = SND_SOC_DAI_BFS_DIV, - .fs = SND_SOC_FS_ALL, - .bfs = SND_SOC_FSB_ALL, - }, -}; - /* * read wm8750 register cache */ @@ -834,40 +565,43 @@ static inline int get_coeff(int mclk, int rate) return -EINVAL; } -/* WM8750 supports numerous input clocks per sample rate */ -static unsigned int wm8750_config_sysclk(struct snd_soc_codec_dai *dai, - struct snd_soc_clock_info *info, unsigned int clk) +static int wm8750_set_dai_sysclk(struct snd_soc_codec_dai *codec_dai, + int clk_id, unsigned int freq, int dir) { - dai->mclk = clk; - return dai->mclk; + struct snd_soc_codec *codec = codec_dai->codec; + struct wm8750_priv *wm8750 = codec->private_data; + + switch (freq) { + case 11289600: + case 12000000: + case 12288000: + case 16934400: + case 18432000: + wm8750->sysclk = freq; + return 0; + } + return -EINVAL; } -static int wm8750_pcm_prepare(struct snd_pcm_substream *substream) +static int wm8750_set_dai_fmt(struct snd_soc_codec_dai *codec_dai, + unsigned int fmt) { - 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, bfs, srate = 0; - int i = get_coeff(rtd->codec_dai->mclk, - snd_soc_get_rate(rtd->codec_dai->dai_runtime.pcmrate)); - - /* is coefficient valid ? */ - if (i < 0) - return i; - - bfs = SND_SOC_FSBD_REAL(rtd->codec_dai->dai_runtime.bfs); + 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; } /* 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; @@ -882,25 +616,12 @@ static int wm8750_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: @@ -912,35 +633,54 @@ static int wm8750_pcm_prepare(struct snd_pcm_substream *substream) case SND_SOC_DAIFMT_NB_IF: iface |= 0x0010; break; + default: + return -EINVAL; } - /* set bclk divisor rate */ - switch (bfs) { - case 1: + wm8750_write(codec, WM8750_IFACE, iface); + return 0; +} + +static int wm8750_pcm_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_device *socdev = rtd->socdev; + struct snd_soc_codec *codec = socdev->codec; + struct wm8750_priv *wm8750 = codec->private_data; + u16 iface = wm8750_read_reg_cache(codec, WM8750_IFACE) & 0x1f3; + u16 srate = wm8750_read_reg_cache(codec, WM8750_SRATE) & 0x1c0; + int coeff = get_coeff(wm8750->sysclk, params_rate(params)); + + /* bit size */ + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_S16_LE: break; - case 4: - srate |= (0x1 << 7); + case SNDRV_PCM_FORMAT_S20_3LE: + iface |= 0x0004; break; - case 8: - srate |= (0x2 << 7); + case SNDRV_PCM_FORMAT_S24_LE: + iface |= 0x0008; break; - case 16: - srate |= (0x3 << 7); + case SNDRV_PCM_FORMAT_S32_LE: + iface |= 0x000c; break; } /* set iface & srate */ wm8750_write(codec, WM8750_IFACE, iface); - wm8750_write(codec, WM8750_SRATE, srate | - (coeff_div[i].sr << 1) | coeff_div[i].usb); + if (coeff >= 0) + wm8750_write(codec, WM8750_SRATE, srate | + (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); return 0; } -static int wm8750_mute(struct snd_soc_codec *codec, - struct snd_soc_codec_dai *dai, int mute) +static int wm8750_mute(struct snd_soc_codec_dai *dai, int mute) { + struct snd_soc_codec *codec = dai->codec; u16 mute_reg = wm8750_read_reg_cache(codec, WM8750_ADCDAC) & 0xfff7; + if (mute) wm8750_write(codec, WM8750_ADCDAC, mute_reg | 0x8); else @@ -974,26 +714,34 @@ static int wm8750_dapm_event(struct snd_soc_codec *codec, int event) return 0; } +#define WM8750_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000) + +#define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ + SNDRV_PCM_FMTBIT_S24_LE) + struct snd_soc_codec_dai wm8750_dai = { .name = "WM8750", .playback = { .stream_name = "Playback", .channels_min = 1, .channels_max = 2, - }, + .rates = WM8750_RATES, + .formats = WM8750_FORMATS,}, .capture = { .stream_name = "Capture", .channels_min = 1, .channels_max = 2, - }, - .config_sysclk = wm8750_config_sysclk, - .digital_mute = wm8750_mute, + .rates = WM8750_RATES, + .formats = WM8750_FORMATS,}, .ops = { - .prepare = wm8750_pcm_prepare, + .hw_params = wm8750_pcm_hw_params, }, - .caps = { - .num_modes = ARRAY_SIZE(wm8750_modes), - .mode = wm8750_modes, + .dai_ops = { + .digital_mute = wm8750_mute, + .set_fmt = wm8750_set_dai_fmt, + .set_sysclk = wm8750_set_dai_sysclk, }, }; EXPORT_SYMBOL_GPL(wm8750_dai); @@ -1037,8 +785,7 @@ static int wm8750_resume(struct platform_device *pdev) if (codec->suspend_dapm_state == SNDRV_CTL_POWER_D0) { wm8750_dapm_event(codec, SNDRV_CTL_POWER_D2); codec->dapm_state = SNDRV_CTL_POWER_D0; - schedule_delayed_work(&codec->delayed_work, - msecs_to_jiffies(1000)); + schedule_delayed_work(&codec->delayed_work, msecs_to_jiffies(1000)); } return 0; @@ -1218,6 +965,7 @@ static int wm8750_probe(struct platform_device *pdev) struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct wm8750_setup_data *setup = socdev->codec_data; struct snd_soc_codec *codec; + struct wm8750_priv *wm8750; int ret = 0; info("WM8750 Audio Codec %s", WM8750_VERSION); @@ -1225,12 +973,20 @@ static int wm8750_probe(struct platform_device *pdev) if (codec == NULL) return -ENOMEM; + wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL); + if (wm8750 == NULL) { + kfree(codec); + return -ENOMEM; + } + + codec->private_data = wm8750; socdev->codec = codec; mutex_init(&codec->mutex); INIT_LIST_HEAD(&codec->dapm_widgets); INIT_LIST_HEAD(&codec->dapm_paths); wm8750_socdev = socdev; INIT_DELAYED_WORK(&codec->delayed_work, wm8750_work); + #if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) if (setup->i2c_address) { normal_i2c[0] = setup->i2c_address; @@ -1246,6 +1002,25 @@ static int wm8750_probe(struct platform_device *pdev) return ret; } +/* + * This function forces any delayed work to be queued and run. + */ +static int run_delayed_work(struct delayed_work *dwork) +{ + int ret; + + /* cancel any work waiting to be queued. */ + ret = cancel_delayed_work(dwork); + + /* if there was any work waiting then we run it now and + * wait for it's completion */ + if (ret) { + schedule_delayed_work(dwork, 0); + flush_scheduled_work(); + } + return ret; +} + /* power down chip */ static int wm8750_remove(struct platform_device *pdev) { @@ -1254,12 +1029,13 @@ static int wm8750_remove(struct platform_device *pdev) if (codec->control_data) wm8750_dapm_event(codec, SNDRV_CTL_POWER_D3cold); - flush_scheduled_work(); + run_delayed_work(&codec->delayed_work); snd_soc_free_pcms(socdev); snd_soc_dapm_free(socdev); #if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) i2c_del_driver(&wm8750_i2c_driver); #endif + kfree(codec->private_data); kfree(codec); return 0; |