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authorTakashi Iwai <tiwai@suse.de>2008-08-21 13:00:13 +0200
committerJaroslav Kysela <perex@perex.cz>2008-08-25 09:57:18 +0200
commit77a23f2695bb2de0cd74599400dc55109c531b72 (patch)
tree4960195e04016928dea83deb85e0f3bf97024a8a /sound/pci/trident
parent46480b3a5f88f20dbf25d95fe74d7b4798d5bc86 (diff)
ALSA: Clean up SG-buffer helper functions and macros
Clean up SG-buffer helper functions and macros. Helpers take substream as arguments now. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/pci/trident')
-rw-r--r--sound/pci/trident/trident_memory.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/sound/pci/trident/trident_memory.c b/sound/pci/trident/trident_memory.c
index 2fe3b1fab53..f9779e23fe5 100644
--- a/sound/pci/trident/trident_memory.c
+++ b/sound/pci/trident/trident_memory.c
@@ -194,7 +194,6 @@ snd_trident_alloc_sg_pages(struct snd_trident *trident,
struct snd_util_memblk *blk;
struct snd_pcm_runtime *runtime = substream->runtime;
int idx, page;
- struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
if (snd_BUG_ON(runtime->dma_bytes <= 0 ||
runtime->dma_bytes > SNDRV_TRIDENT_MAX_PAGES *
@@ -212,18 +211,14 @@ snd_trident_alloc_sg_pages(struct snd_trident *trident,
mutex_unlock(&hdr->block_mutex);
return NULL;
}
- if (lastpg(blk) - firstpg(blk) >= sgbuf->pages) {
- snd_printk(KERN_ERR "page calculation doesn't match: allocated pages = %d, trident = %d/%d\n", sgbuf->pages, firstpg(blk), lastpg(blk));
- __snd_util_mem_free(hdr, blk);
- mutex_unlock(&hdr->block_mutex);
- return NULL;
- }
/* set TLB entries */
idx = 0;
for (page = firstpg(blk); page <= lastpg(blk); page++, idx++) {
- dma_addr_t addr = sgbuf->table[idx].addr;
- unsigned long ptr = (unsigned long)sgbuf->table[idx].buf;
+ unsigned long ofs = idx << PAGE_SHIFT;
+ dma_addr_t addr = snd_pcm_sgbuf_get_addr(substream, ofs);
+ unsigned long ptr = (unsigned long)
+ snd_pcm_sgbuf_get_ptr(substream, ofs);
if (! is_valid_page(addr)) {
__snd_util_mem_free(hdr, blk);
mutex_unlock(&hdr->block_mutex);