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ALSA: Clean up SG-buffer helper functions and macros

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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>
This commit is contained in:
Takashi Iwai
2008-08-21 13:00:13 +02:00
committed by Jaroslav Kysela
parent 46480b3a5f
commit 77a23f2695
15 changed files with 91 additions and 103 deletions
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5
sound/pci/bt87x.c
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@@ -227,7 +227,6 @@ static inline void snd_bt87x_writel(struct snd_bt87x *chip, u32 reg, u32 value)
static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substream *substream,
unsigned int periods, unsigned int period_bytes)
{
struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
unsigned int i, offset;
u32 *risc;
@@ -246,6 +245,7 @@ static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substrea
rest = period_bytes;
do {
u32 cmd, len;
unsigned int addr;
len = PAGE_SIZE - (offset % PAGE_SIZE);
if (len > rest)
@@ -260,7 +260,8 @@ static int snd_bt87x_create_risc(struct snd_bt87x *chip, struct snd_pcm_substrea
if (len == rest)
cmd |= RISC_EOL | RISC_IRQ;
*risc++ = cpu_to_le32(cmd);
*risc++ = cpu_to_le32((u32)snd_pcm_sgbuf_get_addr(sgbuf, offset));
addr = snd_pcm_sgbuf_get_addr(substream, offset);
*risc++ = cpu_to_le32(addr);
offset += len;
rest -= len;
} while (rest > 0);