diff options
Diffstat (limited to 'sound/core/pcm_memory.c')
-rw-r--r-- | sound/core/pcm_memory.c | 82 |
1 files changed, 46 insertions, 36 deletions
diff --git a/sound/core/pcm_memory.c b/sound/core/pcm_memory.c index b3f5344f60be..a0119ae67dcd 100644 --- a/sound/core/pcm_memory.c +++ b/sound/core/pcm_memory.c @@ -46,7 +46,7 @@ static const size_t snd_minimum_buffer = 16384; * * the minimum size is snd_minimum_buffer. it should be power of 2. */ -static int preallocate_pcm_pages(snd_pcm_substream_t *substream, size_t size) +static int preallocate_pcm_pages(struct snd_pcm_substream *substream, size_t size) { struct snd_dma_buffer *dmab = &substream->dma_buffer; int err; @@ -78,7 +78,7 @@ static int preallocate_pcm_pages(snd_pcm_substream_t *substream, size_t size) /* * release the preallocated buffer if not yet done. */ -static void snd_pcm_lib_preallocate_dma_free(snd_pcm_substream_t *substream) +static void snd_pcm_lib_preallocate_dma_free(struct snd_pcm_substream *substream) { if (substream->dma_buffer.area == NULL) return; @@ -97,13 +97,11 @@ static void snd_pcm_lib_preallocate_dma_free(snd_pcm_substream_t *substream) * * Returns zero if successful, or a negative error code on failure. */ -int snd_pcm_lib_preallocate_free(snd_pcm_substream_t *substream) +int snd_pcm_lib_preallocate_free(struct snd_pcm_substream *substream) { snd_pcm_lib_preallocate_dma_free(substream); - if (substream->proc_prealloc_entry) { - snd_info_unregister(substream->proc_prealloc_entry); - substream->proc_prealloc_entry = NULL; - } + snd_info_unregister(substream->proc_prealloc_entry); + substream->proc_prealloc_entry = NULL; return 0; } @@ -115,9 +113,9 @@ int snd_pcm_lib_preallocate_free(snd_pcm_substream_t *substream) * * Returns zero if successful, or a negative error code on failure. */ -int snd_pcm_lib_preallocate_free_for_all(snd_pcm_t *pcm) +int snd_pcm_lib_preallocate_free_for_all(struct snd_pcm *pcm) { - snd_pcm_substream_t *substream; + struct snd_pcm_substream *substream; int stream; for (stream = 0; stream < 2; stream++) @@ -126,15 +124,16 @@ int snd_pcm_lib_preallocate_free_for_all(snd_pcm_t *pcm) return 0; } +#ifdef CONFIG_PROC_FS /* * read callback for prealloc proc file * * prints the current allocated size in kB. */ -static void snd_pcm_lib_preallocate_proc_read(snd_info_entry_t *entry, - snd_info_buffer_t *buffer) +static void snd_pcm_lib_preallocate_proc_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) { - snd_pcm_substream_t *substream = (snd_pcm_substream_t *)entry->private_data; + struct snd_pcm_substream *substream = entry->private_data; snd_iprintf(buffer, "%lu\n", (unsigned long) substream->dma_buffer.bytes / 1024); } @@ -143,10 +142,10 @@ static void snd_pcm_lib_preallocate_proc_read(snd_info_entry_t *entry, * * accepts the preallocation size in kB. */ -static void snd_pcm_lib_preallocate_proc_write(snd_info_entry_t *entry, - snd_info_buffer_t *buffer) +static void snd_pcm_lib_preallocate_proc_write(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) { - snd_pcm_substream_t *substream = (snd_pcm_substream_t *)entry->private_data; + struct snd_pcm_substream *substream = entry->private_data; char line[64], str[64]; size_t size; struct snd_dma_buffer new_dmab; @@ -185,20 +184,10 @@ static void snd_pcm_lib_preallocate_proc_write(snd_info_entry_t *entry, } } -/* - * pre-allocate the buffer and create a proc file for the substream - */ -static int snd_pcm_lib_preallocate_pages1(snd_pcm_substream_t *substream, - size_t size, size_t max) +static inline void preallocate_info_init(struct snd_pcm_substream *substream) { - snd_info_entry_t *entry; + struct snd_info_entry *entry; - if (size > 0 && preallocate_dma && substream->number < maximum_substreams) - preallocate_pcm_pages(substream, size); - - if (substream->dma_buffer.bytes > 0) - substream->buffer_bytes_max = substream->dma_buffer.bytes; - substream->dma_max = max; if ((entry = snd_info_create_card_entry(substream->pcm->card, "prealloc", substream->proc_root)) != NULL) { entry->c.text.read_size = 64; entry->c.text.read = snd_pcm_lib_preallocate_proc_read; @@ -212,6 +201,26 @@ static int snd_pcm_lib_preallocate_pages1(snd_pcm_substream_t *substream, } } substream->proc_prealloc_entry = entry; +} + +#else /* !CONFIG_PROC_FS */ +#define preallocate_info_init(s) +#endif + +/* + * pre-allocate the buffer and create a proc file for the substream + */ +static int snd_pcm_lib_preallocate_pages1(struct snd_pcm_substream *substream, + size_t size, size_t max) +{ + + if (size > 0 && preallocate_dma && substream->number < maximum_substreams) + preallocate_pcm_pages(substream, size); + + if (substream->dma_buffer.bytes > 0) + substream->buffer_bytes_max = substream->dma_buffer.bytes; + substream->dma_max = max; + preallocate_info_init(substream); return 0; } @@ -233,7 +242,7 @@ static int snd_pcm_lib_preallocate_pages1(snd_pcm_substream_t *substream, * * Returns zero if successful, or a negative error code on failure. */ -int snd_pcm_lib_preallocate_pages(snd_pcm_substream_t *substream, +int snd_pcm_lib_preallocate_pages(struct snd_pcm_substream *substream, int type, struct device *data, size_t size, size_t max) { @@ -255,11 +264,11 @@ int snd_pcm_lib_preallocate_pages(snd_pcm_substream_t *substream, * * Returns zero if successful, or a negative error code on failure. */ -int snd_pcm_lib_preallocate_pages_for_all(snd_pcm_t *pcm, +int snd_pcm_lib_preallocate_pages_for_all(struct snd_pcm *pcm, int type, void *data, size_t size, size_t max) { - snd_pcm_substream_t *substream; + struct snd_pcm_substream *substream; int stream, err; for (stream = 0; stream < 2; stream++) @@ -277,7 +286,7 @@ int snd_pcm_lib_preallocate_pages_for_all(snd_pcm_t *pcm, * Returns the page struct at the given buffer offset. * Used as the page callback of PCM ops. */ -struct page *snd_pcm_sgbuf_ops_page(snd_pcm_substream_t *substream, unsigned long offset) +struct page *snd_pcm_sgbuf_ops_page(struct snd_pcm_substream *substream, unsigned long offset) { struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream); @@ -298,9 +307,9 @@ struct page *snd_pcm_sgbuf_ops_page(snd_pcm_substream_t *substream, unsigned lon * Returns 1 if the buffer is changed, 0 if not changed, or a negative * code on failure. */ -int snd_pcm_lib_malloc_pages(snd_pcm_substream_t *substream, size_t size) +int snd_pcm_lib_malloc_pages(struct snd_pcm_substream *substream, size_t size) { - snd_pcm_runtime_t *runtime; + struct snd_pcm_runtime *runtime; struct snd_dma_buffer *dmab = NULL; snd_assert(substream->dma_buffer.dev.type != SNDRV_DMA_TYPE_UNKNOWN, return -EINVAL); @@ -318,7 +327,8 @@ int snd_pcm_lib_malloc_pages(snd_pcm_substream_t *substream, size_t size) } snd_pcm_lib_free_pages(substream); } - if (substream->dma_buffer.area != NULL && substream->dma_buffer.bytes >= size) { + if (substream->dma_buffer.area != NULL && + substream->dma_buffer.bytes >= size) { dmab = &substream->dma_buffer; /* use the pre-allocated buffer */ } else { dmab = kzalloc(sizeof(*dmab), GFP_KERNEL); @@ -345,9 +355,9 @@ int snd_pcm_lib_malloc_pages(snd_pcm_substream_t *substream, size_t size) * * Returns zero if successful, or a negative error code on failure. */ -int snd_pcm_lib_free_pages(snd_pcm_substream_t *substream) +int snd_pcm_lib_free_pages(struct snd_pcm_substream *substream) { - snd_pcm_runtime_t *runtime; + struct snd_pcm_runtime *runtime; snd_assert(substream != NULL, return -EINVAL); runtime = substream->runtime; |