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| author | Clemens Ladisch <clemens@ladisch.de> | 2007-10-16 14:59:10 -0700 |
|---|---|---|
| committer | Clemens Ladisch <clemens@ladisch.de> | 2007-10-16 14:59:10 -0700 |
| commit | 1554c31dc6c915ba4fbce9b97c6e987274847ede (patch) | |
| tree | c45b4c5f23a3129761a0acfedae04448bccc630b | |
| parent | ef94e12ccb4e1ed5ae430cd499f5fb04122be522 (diff) | |
| download | mediapointer-dvb-s2-1554c31dc6c915ba4fbce9b97c6e987274847ede.tar.gz mediapointer-dvb-s2-1554c31dc6c915ba4fbce9b97c6e987274847ede.tar.bz2 | |
Backport kernel commit 918f3a0e8cf67b5db966516f255eaf24d814fac0
kernel-sync:
ALSA HG commit 5279
Date: Mon, 13 Aug 2007 15:40:54 +0000 (+0200)
[ALSA] pcm: add snd_pcm_rate_to_rate_bit() helper
Add a snd_pcm_rate_to_rate_bit() function to factor out common code used
by several drivers.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| -rw-r--r-- | linux/sound/pci/bt87x.c | 21 | ||||
| -rw-r--r-- | v4l/compat.h | 15 |
2 files changed, 16 insertions, 20 deletions
diff --git a/linux/sound/pci/bt87x.c b/linux/sound/pci/bt87x.c index 3f2047e84..dd8d436c9 100644 --- a/linux/sound/pci/bt87x.c +++ b/linux/sound/pci/bt87x.c @@ -360,28 +360,9 @@ static struct snd_pcm_hardware snd_bt87x_analog_hw = { static int snd_bt87x_set_digital_hw(struct snd_bt87x *chip, struct snd_pcm_runtime *runtime) { - static struct { - int rate; - unsigned int bit; - } ratebits[] = { - {8000, SNDRV_PCM_RATE_8000}, - {11025, SNDRV_PCM_RATE_11025}, - {16000, SNDRV_PCM_RATE_16000}, - {22050, SNDRV_PCM_RATE_22050}, - {32000, SNDRV_PCM_RATE_32000}, - {44100, SNDRV_PCM_RATE_44100}, - {48000, SNDRV_PCM_RATE_48000} - }; - int i; - chip->reg_control |= CTL_DA_IOM_DA; runtime->hw = snd_bt87x_digital_hw; - runtime->hw.rates = SNDRV_PCM_RATE_KNOT; - for (i = 0; i < ARRAY_SIZE(ratebits); ++i) - if (chip->dig_rate == ratebits[i].rate) { - runtime->hw.rates = ratebits[i].bit; - break; - } + runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->dig_rate); runtime->hw.rate_min = chip->dig_rate; runtime->hw.rate_max = chip->dig_rate; return 0; diff --git a/v4l/compat.h b/v4l/compat.h index a8d1b1d45..97b35d4f7 100644 --- a/v4l/compat.h +++ b/v4l/compat.h @@ -447,6 +447,21 @@ static inline u8 v4l_compat_pci_rev(struct pci_dev *pci) # endif #endif +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24) && defined(__SOUND_PCM_H) +/* New alsa core utility function */ +static inline unsigned int snd_pcm_rate_to_rate_bit(unsigned int rate) +{ + static const unsigned int rates[] = { 5512, 8000, 11025, 16000, 22050, + 32000, 44100, 48000, 64000, 88200, 96000, 176400, 192000 }; + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(rates); i++) + if (rates[i] == rate) + return 1u << i; + return SNDRV_PCM_RATE_KNOT; +} +#endif + #endif /* * Local variables: |