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Changes and cleanups for the timer API.

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The device lists use the next device syntax now.
This commit is contained in:
Jaroslav Kysela 2000-11-30 19:17:55 +00:00
parent 61e95094e7
commit 35cb79860d
12 changed files with 204 additions and 78 deletions
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45
src/control/cards.c
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@ -52,39 +52,22 @@ int snd_card_load(int card)
return open_dev;
}
int snd_cards(void)
int snd_card_next(int *rcard)
{
int idx, count;
unsigned int mask;
mask = snd_cards_mask();
for (idx = 0, count = 0; idx < SND_CARDS; idx++) {
if (mask & (1 << idx))
count++;
int card;
if (rcard == NULL)
return -EINVAL;
card = *rcard;
card = card < 0 ? 0 : card + 1;
for (; card < 32; card++) {
if (!snd_card_load(card)) {
*rcard = card;
return 0;
}
}
return count;
}
/*
* this routine uses very ugly method...
* need to do... (use only stat on /proc/asound?)
* now is information cached over static variable
*/
unsigned int snd_cards_mask(void)
{
int idx;
unsigned int mask;
static unsigned int save_mask = 0;
if (save_mask)
return save_mask;
for (idx = 0, mask = 0; idx < SND_CARDS; idx++) {
if (snd_card_load(idx) >= 0)
mask |= 1 << idx;
}
save_mask = mask;
return mask;
*rcard = -1;
return 0;
}
int snd_card_get_index(const char *string)