X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;ds=sidebyside;f=include%2Fsound%2Fpcm.h;h=40c5a6fa6bcd3635334f0405ee0d53f37c3944c7;hb=76a67ec6fb79ff3570dcb5342142c16098299911;hp=73334e0f823f57d88ae4bbb5eade93b2b008acfa;hpb=ef991b95aa1351a5782cfaccb9aefba76ca8b990;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 73334e0..40c5a6f 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -3,7 +3,7 @@ /* * Digital Audio (PCM) abstract layer - * Copyright (c) by Jaroslav Kysela + * Copyright (c) by Jaroslav Kysela * Abramo Bagnara * * @@ -25,6 +25,7 @@ #include #include +#include #include #include #include @@ -84,7 +85,11 @@ struct snd_pcm_ops { * */ -#define SNDRV_PCM_DEVICES 8 +#if defined(CONFIG_SND_DYNAMIC_MINORS) +#define SNDRV_PCM_DEVICES (SNDRV_OS_MINORS-2) +#else +#define SNDRV_PCM_DEVICES 8 +#endif #define SNDRV_PCM_IOCTL1_FALSE ((void *)0) #define SNDRV_PCM_IOCTL1_TRUE ((void *)1) @@ -274,7 +279,6 @@ struct snd_pcm_runtime { snd_pcm_uframes_t period_size; /* period size */ unsigned int periods; /* periods */ snd_pcm_uframes_t buffer_size; /* buffer size */ - unsigned int tick_time; /* tick time */ snd_pcm_uframes_t min_align; /* Min alignment for the format */ size_t byte_align; unsigned int frame_bits; @@ -286,8 +290,6 @@ struct snd_pcm_runtime { /* -- SW params -- */ int tstamp_mode; /* mmap timestamp is updated */ unsigned int period_step; - unsigned int sleep_min; /* min ticks to sleep */ - snd_pcm_uframes_t xfer_align; /* xfer size need to be a multiple */ snd_pcm_uframes_t start_threshold; snd_pcm_uframes_t stop_threshold; snd_pcm_uframes_t silence_threshold; /* Silence filling happens when @@ -301,12 +303,11 @@ struct snd_pcm_runtime { union snd_pcm_sync_id sync; /* hardware synchronization ID */ /* -- mmap -- */ - volatile struct snd_pcm_mmap_status *status; - volatile struct snd_pcm_mmap_control *control; + struct snd_pcm_mmap_status *status; + struct snd_pcm_mmap_control *control; /* -- locking / scheduling -- */ wait_queue_head_t sleep; - struct timer_list tick_timer; struct fasync_struct *fasync; /* -- private section -- */ @@ -323,6 +324,7 @@ struct snd_pcm_runtime { /* -- timer -- */ unsigned int timer_resolution; /* timer resolution */ + int tstamp_type; /* timestamp type */ /* -- DMA -- */ unsigned char *dma_area; /* DMA area */ @@ -419,7 +421,7 @@ struct snd_pcm_str { struct snd_pcm { struct snd_card *card; struct list_head list; - unsigned int device; /* device number */ + int device; /* device number */ unsigned int info_flags; unsigned short dev_class; unsigned short dev_subclass; @@ -791,13 +793,13 @@ static inline struct snd_interval *hw_param_interval(struct snd_pcm_hw_params *p static inline const struct snd_mask *hw_param_mask_c(const struct snd_pcm_hw_params *params, snd_pcm_hw_param_t var) { - return (const struct snd_mask *)hw_param_mask((struct snd_pcm_hw_params*) params, var); + return ¶ms->masks[var - SNDRV_PCM_HW_PARAM_FIRST_MASK]; } static inline const struct snd_interval *hw_param_interval_c(const struct snd_pcm_hw_params *params, snd_pcm_hw_param_t var) { - return (const struct snd_interval *)hw_param_interval((struct snd_pcm_hw_params*) params, var); + return ¶ms->intervals[var - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL]; } #define params_access(p) snd_mask_min(hw_param_mask((p), SNDRV_PCM_HW_PARAM_ACCESS)) @@ -810,7 +812,6 @@ static inline const struct snd_interval *hw_param_interval_c(const struct snd_pc #define params_periods(p) hw_param_interval((p), SNDRV_PCM_HW_PARAM_PERIODS)->min #define params_buffer_size(p) hw_param_interval((p), SNDRV_PCM_HW_PARAM_BUFFER_SIZE)->min #define params_buffer_bytes(p) hw_param_interval((p), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->min -#define params_tick_time(p) hw_param_interval((p), SNDRV_PCM_HW_PARAM_TICK_TIME)->min int snd_interval_refine(struct snd_interval *i, const struct snd_interval *v); @@ -908,9 +909,6 @@ int snd_pcm_capture_xrun_check(struct snd_pcm_substream *substream); int snd_pcm_playback_xrun_asap(struct snd_pcm_substream *substream); int snd_pcm_capture_xrun_asap(struct snd_pcm_substream *substream); void snd_pcm_playback_silence(struct snd_pcm_substream *substream, snd_pcm_uframes_t new_hw_ptr); -void snd_pcm_tick_prepare(struct snd_pcm_substream *substream); -void snd_pcm_tick_set(struct snd_pcm_substream *substream, unsigned long ticks); -void snd_pcm_tick_elapsed(struct snd_pcm_substream *substream); void snd_pcm_period_elapsed(struct snd_pcm_substream *substream); snd_pcm_sframes_t snd_pcm_lib_write(struct snd_pcm_substream *substream, const void __user *buf, @@ -922,7 +920,10 @@ snd_pcm_sframes_t snd_pcm_lib_writev(struct snd_pcm_substream *substream, snd_pcm_sframes_t snd_pcm_lib_readv(struct snd_pcm_substream *substream, void __user **bufs, snd_pcm_uframes_t frames); +extern const struct snd_pcm_hw_constraint_list snd_pcm_known_rates; + int snd_pcm_limit_hw_rates(struct snd_pcm_runtime *runtime); +unsigned int snd_pcm_rate_to_rate_bit(unsigned int rate); static inline void snd_pcm_set_runtime_buffer(struct snd_pcm_substream *substream, struct snd_dma_buffer *bufp) @@ -949,6 +950,15 @@ void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream); void snd_pcm_timer_init(struct snd_pcm_substream *substream); void snd_pcm_timer_done(struct snd_pcm_substream *substream); +static inline void snd_pcm_gettime(struct snd_pcm_runtime *runtime, + struct timespec *tv) +{ + if (runtime->tstamp_type == SNDRV_PCM_TSTAMP_TYPE_MONOTONIC) + do_posix_clock_monotonic_gettime(tv); + else + getnstimeofday(tv); +} + /* * Memory */ @@ -964,10 +974,30 @@ int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm, int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size); int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream); -#define snd_pcm_substream_sgbuf(substream) ((substream)->runtime->dma_buffer_p->private_data) -#define snd_pcm_sgbuf_pages(size) snd_sgbuf_aligned_pages(size) -#define snd_pcm_sgbuf_get_addr(sgbuf,ofs) snd_sgbuf_get_addr(sgbuf,ofs) -struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, unsigned long offset); +/* + * SG-buffer handling + */ +#define snd_pcm_substream_sgbuf(substream) \ + ((substream)->runtime->dma_buffer_p->private_data) + +static inline dma_addr_t +snd_pcm_sgbuf_get_addr(struct snd_pcm_substream *substream, unsigned int ofs) +{ + struct snd_sg_buf *sg = snd_pcm_substream_sgbuf(substream); + return snd_sgbuf_get_addr(sg, ofs); +} + +static inline void * +snd_pcm_sgbuf_get_ptr(struct snd_pcm_substream *substream, unsigned int ofs) +{ + struct snd_sg_buf *sg = snd_pcm_substream_sgbuf(substream); + return snd_sgbuf_get_ptr(sg, ofs); +} + +struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, + unsigned long offset); +unsigned int snd_pcm_sgbuf_get_chunk_size(struct snd_pcm_substream *substream, + unsigned int ofs, unsigned int size); /* handle mmap counter - PCM mmap callback should handle this counter properly */ static inline void snd_pcm_mmap_data_open(struct vm_area_struct *area) @@ -1005,4 +1035,6 @@ static inline void snd_pcm_limit_isa_dma_size(int dma, size_t *max) (IEC958_AES1_CON_PCM_CODER<<8)|\ (IEC958_AES3_CON_FS_48000<<24)) +#define PCM_RUNTIME_CHECK(sub) snd_BUG_ON(!(sub) || !(sub)->runtime) + #endif /* __SOUND_PCM_H */