diff options
Diffstat (limited to 'sound/soc/codecs/ak4642.c')
| -rw-r--r-- | sound/soc/codecs/ak4642.c | 177 |
1 files changed, 141 insertions, 36 deletions
diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c index 729859cf6ca8..7528a54102b5 100644 --- a/sound/soc/codecs/ak4642.c +++ b/sound/soc/codecs/ak4642.c @@ -81,12 +81,39 @@ #define AK4642_CACHEREGNUM 0x25 +/* PW_MGMT2 */ +#define HPMTN (1 << 6) +#define PMHPL (1 << 5) +#define PMHPR (1 << 4) +#define MS (1 << 3) /* master/slave select */ +#define MCKO (1 << 1) +#define PMPLL (1 << 0) + +#define PMHP_MASK (PMHPL | PMHPR) +#define PMHP PMHP_MASK + +/* MD_CTL1 */ +#define PLL3 (1 << 7) +#define PLL2 (1 << 6) +#define PLL1 (1 << 5) +#define PLL0 (1 << 4) +#define PLL_MASK (PLL3 | PLL2 | PLL1 | PLL0) + +#define BCKO_MASK (1 << 3) +#define BCKO_64 BCKO_MASK + +/* MD_CTL2 */ +#define FS0 (1 << 0) +#define FS1 (1 << 1) +#define FS2 (1 << 2) +#define FS3 (1 << 5) +#define FS_MASK (FS0 | FS1 | FS2 | FS3) + struct snd_soc_codec_device soc_codec_dev_ak4642; /* codec private data */ struct ak4642_priv { struct snd_soc_codec codec; - unsigned int sysclk; }; static struct snd_soc_codec *ak4642_codec; @@ -177,17 +204,12 @@ static int ak4642_dai_startup(struct snd_pcm_substream *substream, * * PLL, Master Mode * Audio I/F Format :MSB justified (ADC & DAC) - * Sampling Frequency: 44.1kHz - * Digital Volume: −8dB + * Digital Volume: -8dB * Bass Boost Level : Middle * * This operation came from example code of * "ASAHI KASEI AK4642" (japanese) manual p97. - * - * Example code use 0x39, 0x79 value for 0x01 address, - * But we need MCKO (0x02) bit now */ - ak4642_write(codec, 0x05, 0x27); ak4642_write(codec, 0x0f, 0x09); ak4642_write(codec, 0x0e, 0x19); ak4642_write(codec, 0x09, 0x91); @@ -195,15 +217,14 @@ static int ak4642_dai_startup(struct snd_pcm_substream *substream, ak4642_write(codec, 0x0a, 0x28); ak4642_write(codec, 0x0d, 0x28); ak4642_write(codec, 0x00, 0x64); - ak4642_write(codec, 0x01, 0x3b); /* + MCKO bit */ - ak4642_write(codec, 0x01, 0x7b); /* + MCKO bit */ + snd_soc_update_bits(codec, PW_MGMT2, PMHP_MASK, PMHP); + snd_soc_update_bits(codec, PW_MGMT2, HPMTN, HPMTN); } else { /* * start stereo input * * PLL Master Mode * Audio I/F Format:MSB justified (ADC & DAC) - * Sampling Frequency:44.1kHz * Pre MIC AMP:+20dB * MIC Power On * ALC setting:Refer to Table 35 @@ -212,7 +233,6 @@ static int ak4642_dai_startup(struct snd_pcm_substream *substream, * This operation came from example code of * "ASAHI KASEI AK4642" (japanese) manual p94. */ - ak4642_write(codec, 0x05, 0x27); ak4642_write(codec, 0x02, 0x05); ak4642_write(codec, 0x06, 0x3c); ak4642_write(codec, 0x08, 0xe1); @@ -233,8 +253,8 @@ static void ak4642_dai_shutdown(struct snd_pcm_substream *substream, if (is_play) { /* stop headphone output */ - ak4642_write(codec, 0x01, 0x3b); - ak4642_write(codec, 0x01, 0x0b); + snd_soc_update_bits(codec, PW_MGMT2, HPMTN, 0); + snd_soc_update_bits(codec, PW_MGMT2, PMHP_MASK, 0); ak4642_write(codec, 0x00, 0x40); ak4642_write(codec, 0x0e, 0x11); ak4642_write(codec, 0x0f, 0x08); @@ -250,9 +270,111 @@ static int ak4642_dai_set_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = codec_dai->codec; - struct ak4642_priv *ak4642 = codec->private_data; + u8 pll; + + switch (freq) { + case 11289600: + pll = PLL2; + break; + case 12288000: + pll = PLL2 | PLL0; + break; + case 12000000: + pll = PLL2 | PLL1; + break; + case 24000000: + pll = PLL2 | PLL1 | PLL0; + break; + case 13500000: + pll = PLL3 | PLL2; + break; + case 27000000: + pll = PLL3 | PLL2 | PLL0; + break; + default: + return -EINVAL; + } + snd_soc_update_bits(codec, MD_CTL1, PLL_MASK, pll); + + return 0; +} + +static int ak4642_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_codec *codec = dai->codec; + u8 data; + u8 bcko; + + data = MCKO | PMPLL; /* use MCKO */ + bcko = 0; + + /* set master/slave audio interface */ + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + data |= MS; + bcko = BCKO_64; + break; + case SND_SOC_DAIFMT_CBS_CFS: + break; + default: + return -EINVAL; + } + snd_soc_update_bits(codec, PW_MGMT2, MS, data); + snd_soc_update_bits(codec, MD_CTL1, BCKO_MASK, bcko); + + return 0; +} + +static int ak4642_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct snd_soc_codec *codec = dai->codec; + u8 rate; + + switch (params_rate(params)) { + case 7350: + rate = FS2; + break; + case 8000: + rate = 0; + break; + case 11025: + rate = FS2 | FS0; + break; + case 12000: + rate = FS0; + break; + case 14700: + rate = FS2 | FS1; + break; + case 16000: + rate = FS1; + break; + case 22050: + rate = FS2 | FS1 | FS0; + break; + case 24000: + rate = FS1 | FS0; + break; + case 29400: + rate = FS3 | FS2 | FS1; + break; + case 32000: + rate = FS3 | FS1; + break; + case 44100: + rate = FS3 | FS2 | FS1 | FS0; + break; + case 48000: + rate = FS3 | FS1 | FS0; + break; + default: + return -EINVAL; + break; + } + snd_soc_update_bits(codec, MD_CTL2, FS_MASK, rate); - ak4642->sysclk = freq; return 0; } @@ -260,6 +382,8 @@ static struct snd_soc_dai_ops ak4642_dai_ops = { .startup = ak4642_dai_startup, .shutdown = ak4642_dai_shutdown, .set_sysclk = ak4642_dai_set_sysclk, + .set_fmt = ak4642_dai_set_fmt, + .hw_params = ak4642_dai_hw_params, }; struct snd_soc_dai ak4642_dai = { @@ -277,6 +401,7 @@ struct snd_soc_dai ak4642_dai = { .rates = SNDRV_PCM_RATE_8000_48000, .formats = SNDRV_PCM_FMTBIT_S16_LE }, .ops = &ak4642_dai_ops, + .symmetric_rates = 1, }; EXPORT_SYMBOL_GPL(ak4642_dai); @@ -307,7 +432,7 @@ static int ak4642_init(struct ak4642_priv *ak4642) INIT_LIST_HEAD(&codec->dapm_widgets); INIT_LIST_HEAD(&codec->dapm_paths); - codec->private_data = ak4642; + snd_soc_codec_set_drvdata(codec, ak4642); codec->name = "AK4642"; codec->owner = THIS_MODULE; codec->read = ak4642_read_reg_cache; @@ -338,26 +463,6 @@ static int ak4642_init(struct ak4642_priv *ak4642) goto reg_cache_err; } - /* - * clock setting - * - * Audio I/F Format: MSB justified (ADC & DAC) - * BICK frequency at Master Mode: 64fs - * Input Master Clock Select at PLL Mode: 11.2896MHz - * MCKO: Enable - * Sampling Frequency: 44.1kHz - * - * This operation came from example code of - * "ASAHI KASEI AK4642" (japanese) manual p89. - * - * please fix-me - */ - ak4642_write(codec, 0x01, 0x08); - ak4642_write(codec, 0x04, 0x4a); - ak4642_write(codec, 0x05, 0x27); - ak4642_write(codec, 0x00, 0x40); - ak4642_write(codec, 0x01, 0x0b); - return ret; reg_cache_err: |
