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Improve audio api use in WM8750. 

These are changes from
http://svn.openmoko.org/trunk/src/host/qemu-neo1973/hw/wm8753.c that I
forgot to push to WM8750.  Some were suggested by malc.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4249 c046a42c-6fe2-441c-8c8c-71466251a162
master
balrog 2008-04-24 21:01:40 +00:00
parent 24859b68ee
commit 523111e7ef
1 changed files with 15 additions and 12 deletions
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27
hw/wm8750.c
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@ -55,10 +55,10 @@ static inline void wm8750_in_load(struct wm8750_s *s)
static inline void wm8750_out_flush(struct wm8750_s *s)
{
int sent;
if (!s->idx_out)
return;
sent = AUD_write(*s->out[0], s->data_out, s->idx_out);
int sent = 0;
while (sent < s->idx_out)
sent += AUD_write(*s->out[0], s->data_out + sent, s->idx_out - sent)
?: s->idx_out;
s->idx_out = 0;
}
@ -67,19 +67,20 @@ static void wm8750_audio_in_cb(void *opaque, int avail_b)
struct wm8750_s *s = (struct wm8750_s *) opaque;
s->req_in = avail_b;
s->data_req(s->opaque, s->req_out >> 2, avail_b >> 2);
#if 0
wm8750_in_load(s);
#endif
}
static void wm8750_audio_out_cb(void *opaque, int free_b)
{
struct wm8750_s *s = (struct wm8750_s *) opaque;
s->req_out = free_b;
s->data_req(s->opaque, free_b >> 2, s->req_in >> 2);
wm8750_out_flush(s);
if (s->idx_out >= free_b) {
s->idx_out = free_b;
s->req_out = 0;
wm8750_out_flush(s);
} else
s->req_out = free_b - s->idx_out;
s->data_req(s->opaque, s->req_out >> 2, s->req_in >> 2);
}
struct wm_rate_s {
@ -121,7 +122,7 @@ static const struct wm_rate_s wm_rate_table[] = {
{ 512, 24000, 512, 24000 }, /* SR: 11100 */
{ 768, 24000, 768, 24000 }, /* SR: 11101 */
{ 128, 88200, 128, 88200 }, /* SR: 11110 */
{ 192, 88200, 128, 88200 }, /* SR: 11111 */
{ 192, 88200, 192, 88200 }, /* SR: 11111 */
};
static void wm8750_set_format(struct wm8750_s *s)
@ -597,6 +598,7 @@ i2c_slave *wm8750_init(i2c_bus *bus, AudioState *audio)
return &s->i2c;
}
#if 0
static void wm8750_fini(i2c_slave *i2c)
{
struct wm8750_s *s = (struct wm8750_s *) i2c;
@ -604,6 +606,7 @@ static void wm8750_fini(i2c_slave *i2c)
AUD_remove_card(&s->card);
qemu_free(s);
}
#endif
void wm8750_data_req_set(i2c_slave *i2c,
void (*data_req)(void *, int, int), void *opaque)