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author | Takashi Iwai <tiwai@suse.de> | 2014-12-30 15:42:07 (GMT) |
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committer | Takashi Iwai <tiwai@suse.de> | 2014-12-30 15:42:07 (GMT) |
commit | 240491e143414973a0204e6c7cd4cfd19cb3e027 (patch) | |
tree | 4c9f368bc501d3f0bbcee54c3a81ff7cb2a7aa6d /include/sound | |
parent | 614acf93dceb8e9d73370f7c9b19f64c8cf17496 (diff) | |
parent | 757b037650c9ecca79a46ab744820b1b3c1bb49d (diff) | |
download | linux-240491e143414973a0204e6c7cd4cfd19cb3e027.tar.xz |
Merge branch 'topic/pcm-params' into for-next
Diffstat (limited to 'include/sound')
-rw-r--r-- | include/sound/pcm.h | 13 | ||||
-rw-r--r-- | include/sound/pcm_params.h | 96 |
2 files changed, 53 insertions, 56 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 1e7f74a..3652c94 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -94,9 +94,6 @@ struct snd_pcm_ops { #define SNDRV_PCM_DEVICES 8 #endif -#define SNDRV_PCM_IOCTL1_FALSE ((void *)0) -#define SNDRV_PCM_IOCTL1_TRUE ((void *)1) - #define SNDRV_PCM_IOCTL1_RESET 0 #define SNDRV_PCM_IOCTL1_INFO 1 #define SNDRV_PCM_IOCTL1_CHANNEL_INFO 2 @@ -857,7 +854,7 @@ static inline unsigned int params_channels(const struct snd_pcm_hw_params *p) } /** - * params_channels - Get the sample rate from the hw params + * params_rate - Get the sample rate from the hw params * @p: hw params */ static inline unsigned int params_rate(const struct snd_pcm_hw_params *p) @@ -866,7 +863,7 @@ static inline unsigned int params_rate(const struct snd_pcm_hw_params *p) } /** - * params_channels - Get the period size (in frames) from the hw params + * params_period_size - Get the period size (in frames) from the hw params * @p: hw params */ static inline unsigned int params_period_size(const struct snd_pcm_hw_params *p) @@ -875,7 +872,7 @@ static inline unsigned int params_period_size(const struct snd_pcm_hw_params *p) } /** - * params_channels - Get the number of periods from the hw params + * params_periods - Get the number of periods from the hw params * @p: hw params */ static inline unsigned int params_periods(const struct snd_pcm_hw_params *p) @@ -884,7 +881,7 @@ static inline unsigned int params_periods(const struct snd_pcm_hw_params *p) } /** - * params_channels - Get the buffer size (in frames) from the hw params + * params_buffer_size - Get the buffer size (in frames) from the hw params * @p: hw params */ static inline unsigned int params_buffer_size(const struct snd_pcm_hw_params *p) @@ -893,7 +890,7 @@ static inline unsigned int params_buffer_size(const struct snd_pcm_hw_params *p) } /** - * params_channels - Get the buffer size (in bytes) from the hw params + * params_buffer_bytes - Get the buffer size (in bytes) from the hw params * @p: hw params */ static inline unsigned int params_buffer_bytes(const struct snd_pcm_hw_params *p) diff --git a/include/sound/pcm_params.h b/include/sound/pcm_params.h index 6b1c78f..3c45f39 100644 --- a/include/sound/pcm_params.h +++ b/include/sound/pcm_params.h @@ -38,31 +38,6 @@ int snd_pcm_hw_param_value(const struct snd_pcm_hw_params *params, #define MASK_OFS(i) ((i) >> 5) #define MASK_BIT(i) (1U << ((i) & 31)) -static inline unsigned int ld2(u_int32_t v) -{ - unsigned r = 0; - - if (v >= 0x10000) { - v >>= 16; - r += 16; - } - if (v >= 0x100) { - v >>= 8; - r += 8; - } - if (v >= 0x10) { - v >>= 4; - r += 4; - } - if (v >= 4) { - v >>= 2; - r += 2; - } - if (v >= 2) - r++; - return r; -} - static inline size_t snd_mask_sizeof(void) { return sizeof(struct snd_mask); @@ -92,7 +67,7 @@ static inline unsigned int snd_mask_min(const struct snd_mask *mask) int i; for (i = 0; i < SNDRV_MASK_SIZE; i++) { if (mask->bits[i]) - return ffs(mask->bits[i]) - 1 + (i << 5); + return __ffs(mask->bits[i]) + (i << 5); } return 0; } @@ -102,7 +77,7 @@ static inline unsigned int snd_mask_max(const struct snd_mask *mask) int i; for (i = SNDRV_MASK_SIZE - 1; i >= 0; i--) { if (mask->bits[i]) - return ld2(mask->bits[i]) + (i << 5); + return __fls(mask->bits[i]) + (i << 5); } return 0; } @@ -325,43 +300,68 @@ static inline int snd_interval_eq(const struct snd_interval *i1, const struct sn i1->max == i2->max && i1->openmax == i2->openmax; } -static inline unsigned int add(unsigned int a, unsigned int b) +/** + * params_access - get the access type from the hw params + * @p: hw params + */ +static inline snd_pcm_access_t params_access(const struct snd_pcm_hw_params *p) { - if (a >= UINT_MAX - b) - return UINT_MAX; - return a + b; + return (__force snd_pcm_access_t)snd_mask_min(hw_param_mask_c(p, + SNDRV_PCM_HW_PARAM_ACCESS)); } -static inline unsigned int sub(unsigned int a, unsigned int b) +/** + * params_format - get the sample format from the hw params + * @p: hw params + */ +static inline snd_pcm_format_t params_format(const struct snd_pcm_hw_params *p) { - if (a > b) - return a - b; - return 0; + return (__force snd_pcm_format_t)snd_mask_min(hw_param_mask_c(p, + SNDRV_PCM_HW_PARAM_FORMAT)); } -#define params_access(p) ((__force snd_pcm_access_t)\ - snd_mask_min(hw_param_mask_c((p), SNDRV_PCM_HW_PARAM_ACCESS))) -#define params_format(p) ((__force snd_pcm_format_t)\ - snd_mask_min(hw_param_mask_c((p), SNDRV_PCM_HW_PARAM_FORMAT))) -#define params_subformat(p) \ - snd_mask_min(hw_param_mask_c((p), SNDRV_PCM_HW_PARAM_SUBFORMAT)) +/** + * params_subformat - get the sample subformat from the hw params + * @p: hw params + */ +static inline snd_pcm_subformat_t +params_subformat(const struct snd_pcm_hw_params *p) +{ + return (__force snd_pcm_subformat_t)snd_mask_min(hw_param_mask_c(p, + SNDRV_PCM_HW_PARAM_SUBFORMAT)); +} +/** + * params_period_bytes - get the period size (in bytes) from the hw params + * @p: hw params + */ static inline unsigned int params_period_bytes(const struct snd_pcm_hw_params *p) { - return (params_period_size(p) * - snd_pcm_format_physical_width(params_format(p)) * - params_channels(p)) / 8; + return hw_param_interval_c(p, SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->min; } -static inline int -params_width(const struct snd_pcm_hw_params *p) +/** + * params_width - get the number of bits of the sample format from the hw params + * @p: hw params + * + * This function returns the number of bits per sample that the selected sample + * format of the hw params has. + */ +static inline int params_width(const struct snd_pcm_hw_params *p) { return snd_pcm_format_width(params_format(p)); } -static inline int -params_physical_width(const struct snd_pcm_hw_params *p) +/* + * params_physical_width - get the storage size of the sample format from the hw params + * @p: hw params + * + * This functions returns the number of bits per sample that the selected sample + * format of the hw params takes up in memory. This will be equal or larger than + * params_width(). + */ +static inline int params_physical_width(const struct snd_pcm_hw_params *p) { return snd_pcm_format_physical_width(params_format(p)); } |