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[ALSA] cmipci: clean up struct cmipci_pcm 

Remove some unused field from the struct cmipci_pcm, and change the type
of some others to save some space.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Clemens Ladisch 2007-09-17 09:40:57 +02:00 committed by Jaroslav Kysela
parent 0f28eca32b
commit ebe9e289d8
1 changed files with 12 additions and 13 deletions
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25
sound/pci/cmipci.c
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@ -431,15 +431,13 @@ MODULE_PARM_DESC(joystick_port, "Joystick port address.");
struct cmipci_pcm {
struct snd_pcm_substream *substream;
int running; /* dac/adc running? */
u8 running; /* dac/adc running? */
u8 fmt; /* format bits */
u8 is_dac;
unsigned int dma_size; /* in frames */
unsigned int period_size; /* in frames */
unsigned int shift;
unsigned int ch; /* channel (0/1) */
unsigned int offset; /* physical address of the buffer */
unsigned int fmt; /* format bits */
int ch; /* channel (0/1) */
unsigned int is_dac; /* is dac? */
int bytes_per_frame;
int shift;
};
/* mixer elements toggled/resumed during ac3 playback */
@ -785,6 +783,7 @@ static int snd_cmipci_pcm_prepare(struct cmipci *cm, struct cmipci_pcm *rec,
struct snd_pcm_substream *substream)
{
unsigned int reg, freq, val;
unsigned int period_size;
struct snd_pcm_runtime *runtime = substream->runtime;
rec->fmt = 0;
@ -804,11 +803,11 @@ static int snd_cmipci_pcm_prepare(struct cmipci *cm, struct cmipci_pcm *rec,
rec->offset = runtime->dma_addr;
/* buffer and period sizes in frame */
rec->dma_size = runtime->buffer_size << rec->shift;
rec->period_size = runtime->period_size << rec->shift;
period_size = runtime->period_size << rec->shift;
if (runtime->channels > 2) {
/* multi-channels */
rec->dma_size = (rec->dma_size * runtime->channels) / 2;
rec->period_size = (rec->period_size * runtime->channels) / 2;
period_size = (period_size * runtime->channels) / 2;
}
spin_lock_irq(&cm->reg_lock);
@ -819,7 +818,7 @@ static int snd_cmipci_pcm_prepare(struct cmipci *cm, struct cmipci_pcm *rec,
/* program sample counts */
reg = rec->ch ? CM_REG_CH1_FRAME2 : CM_REG_CH0_FRAME2;
snd_cmipci_write_w(cm, reg, rec->dma_size - 1);
snd_cmipci_write_w(cm, reg + 2, rec->period_size - 1);
snd_cmipci_write_w(cm, reg + 2, period_size - 1);
/* set adc/dac flag */
val = rec->ch ? CM_CHADC1 : CM_CHADC0;
@ -875,7 +874,7 @@ static int snd_cmipci_pcm_prepare(struct cmipci *cm, struct cmipci_pcm *rec,
* PCM trigger/stop
*/
static int snd_cmipci_pcm_trigger(struct cmipci *cm, struct cmipci_pcm *rec,
struct snd_pcm_substream *substream, int cmd)
int cmd)
{
unsigned int inthld, chen, reset, pause;
int result = 0;
@ -955,7 +954,7 @@ static int snd_cmipci_playback_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct cmipci *cm = snd_pcm_substream_chip(substream);
return snd_cmipci_pcm_trigger(cm, &cm->channel[CM_CH_PLAY], substream, cmd);
return snd_cmipci_pcm_trigger(cm, &cm->channel[CM_CH_PLAY], cmd);
}
static snd_pcm_uframes_t snd_cmipci_playback_pointer(struct snd_pcm_substream *substream)
@ -974,7 +973,7 @@ static int snd_cmipci_capture_trigger(struct snd_pcm_substream *substream,
int cmd)
{
struct cmipci *cm = snd_pcm_substream_chip(substream);
return snd_cmipci_pcm_trigger(cm, &cm->channel[CM_CH_CAPT], substream, cmd);
return snd_cmipci_pcm_trigger(cm, &cm->channel[CM_CH_CAPT], cmd);
}
static snd_pcm_uframes_t snd_cmipci_capture_pointer(struct snd_pcm_substream *substream)