diff options
| author | Lionel Xu <r63889@freescale.com> | 2010-03-31 19:27:07 +0800 |
|---|---|---|
| committer | Sam Yang <r52096@freescale.com> | 2010-04-01 15:33:48 +0800 |
| commit | 5c36e08cf6b27c2ef7a6cae284e885fe23603964 (patch) | |
| tree | 72044a45922e7c663bcb2ecc949bc1ae05db99f4 /sound | |
| parent | aac51a3783d15b06df17d1cd884bbe9152d92020 (diff) | |
ENGR00122136 MX28 ALSA: Fail to playback wavfiles with sample rate over 48 khz
To resolve the problem of playing back wavfile with sample rate over 48khz.
Signed-off-by: Lionel Xu <r63889@freescale.com>
(cherry picked from commit f1af83a27357d7da1a89d79f8ed2d74fbfb7dc34)
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/mxs/mxs-dai.c | 63 | ||||
| -rw-r--r-- | sound/soc/mxs/mxs-dai.h | 3 | ||||
| -rw-r--r-- | sound/soc/mxs/mxs-devb.c | 4 |
3 files changed, 68 insertions, 2 deletions
diff --git a/sound/soc/mxs/mxs-dai.c b/sound/soc/mxs/mxs-dai.c index 6250eb1214dc..a548b9948516 100644 --- a/sound/soc/mxs/mxs-dai.c +++ b/sound/soc/mxs/mxs-dai.c @@ -209,6 +209,7 @@ static int mxs_saif_set_dai_sysclk(struct snd_soc_dai *cpu_dai, int clk_id, unsigned int freq, int dir) { struct clk *saif_clk; + u32 scr; struct mxs_saif *saif_select = (struct mxs_saif *)cpu_dai->private_data; switch (clk_id) { @@ -234,6 +235,68 @@ static int mxs_saif_set_dai_sysclk(struct snd_soc_dai *cpu_dai, static int mxs_saif_set_dai_clkdiv(struct snd_soc_dai *cpu_dai, int div_id, int div) { + u32 scr; + struct mxs_saif *saif_select = (struct mxs_saif *)cpu_dai->private_data; + + if (saif_select->saif_en == SAIF0) + scr = __raw_readl(SAIF0_CTRL); + else + scr = __raw_readl(SAIF1_CTRL); + + scr &= ~BM_SAIF_CTRL_BITCLK_MULT_RATE; + scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE; + + switch (div_id) { + case IMX_SSP_SYS_MCLK: + switch (div) { + case 32: + scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(4); + scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE; + break; + case 64: + scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(3); + scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE; + break; + case 128: + scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(2); + scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE; + break; + case 256: + scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(1); + scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE; + break; + case 512: + scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(0); + scr &= ~BM_SAIF_CTRL_BITCLK_BASE_RATE; + break; + case 48: + scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(3); + scr |= BM_SAIF_CTRL_BITCLK_BASE_RATE; + break; + case 96: + scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(2); + scr |= BM_SAIF_CTRL_BITCLK_BASE_RATE; + break; + case 192: + scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(1); + scr |= BM_SAIF_CTRL_BITCLK_BASE_RATE; + break; + case 384: + scr |= BF_SAIF_CTRL_BITCLK_MULT_RATE(0); + scr |= BM_SAIF_CTRL_BITCLK_BASE_RATE; + break; + default: + return -EINVAL; + } + default: + return -EINVAL; + } + + if (saif_select->saif_en == SAIF0) + __raw_writel(scr, SAIF0_CTRL); + else + __raw_writel(scr, SAIF1_CTRL); + return 0; } diff --git a/sound/soc/mxs/mxs-dai.h b/sound/soc/mxs/mxs-dai.h index d9538b1b788d..c75fa09ae82b 100644 --- a/sound/soc/mxs/mxs-dai.h +++ b/sound/soc/mxs/mxs-dai.h @@ -21,8 +21,9 @@ #include <mach/hardware.h> -/* SSI clock sources */ +/* SAIF clock sources */ #define IMX_SSP_SYS_CLK 0 +#define IMX_SSP_SYS_MCLK 1 #define SAIF0 0 #define SAIF1 1 diff --git a/sound/soc/mxs/mxs-devb.c b/sound/soc/mxs/mxs-devb.c index a56955ddb677..1c73d72466e5 100644 --- a/sound/soc/mxs/mxs-devb.c +++ b/sound/soc/mxs/mxs-devb.c @@ -69,8 +69,10 @@ static int mxs_evk_audio_hw_params(struct snd_pcm_substream *substream, priv->hw = 1; priv->sysclk = 512 * rate; - snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, priv->sysclk, 0); + snd_soc_dai_set_sysclk(codec_dai, SGTL5000_SYSCLK, (priv->sysclk)/2, 0); snd_soc_dai_set_sysclk(codec_dai, SGTL5000_LRCLK, rate, 0); + + snd_soc_dai_set_clkdiv(cpu_dai, IMX_SSP_SYS_MCLK, 256); /* set codec to slave mode */ dai_format = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS; |