status_t
ice1712_buffer_exchange(ice1712 *card, multi_buffer_info *data)
{
int cpu_status = 0, status;
/* unsigned char peak[MAX_ADC];
int i;
*/
// TRACE("Avant Exchange p : %d, r : %d\n", data->playback_buffer_cycle, data->record_buffer_cycle);
status = acquire_sem_etc(card->buffer_ready_sem, 1, B_RELATIVE_TIMEOUT | B_CAN_INTERRUPT, 50000);
switch (status) {
case B_NO_ERROR:
// TRACE("B_NO_ERROR\n");
cpu_status = disable_interrupts();
// Playback buffers info
data->played_real_time = card->played_time;
data->played_frames_count = card->frames_count;
data->playback_buffer_cycle = (card->buffer - 1) % SWAPPING_BUFFERS; //Buffer played
// Record buffers info
data->recorded_real_time = card->played_time;
data->recorded_frames_count = card->frames_count;
data->record_buffer_cycle = (card->buffer - 1) % SWAPPING_BUFFERS; //Buffer filled
data->flags = B_MULTI_BUFFER_PLAYBACK | B_MULTI_BUFFER_RECORD;
restore_interrupts(cpu_status);
break;
case B_BAD_SEM_ID:
TRACE("B_BAD_SEM_ID\n");
break;
case B_INTERRUPTED:
TRACE("B_INTERRUPTED\n");
break;
case B_BAD_VALUE:
TRACE("B_BAD_VALUE\n");
break;
case B_WOULD_BLOCK:
TRACE("B_WOULD_BLOCK\n");
break;
case B_TIMED_OUT:
TRACE("B_TIMED_OUT\n");
start_DMA(card);
cpu_status = lock();
data->played_real_time = card->played_time;
data->playback_buffer_cycle = 0;
data->played_frames_count += card->buffer_size;
data->recorded_real_time = card->played_time;
data->record_buffer_cycle = 0;
data->recorded_frames_count += card->buffer_size;
data->flags = B_MULTI_BUFFER_PLAYBACK | B_MULTI_BUFFER_RECORD;
unlock(cpu_status);
break;
default:
TRACE("Default\n");
break;
}
if ((card->buffer % 1500) == 0) {
uint8 reg8, reg8_dir;
reg8 = read_gpio(card);
reg8_dir = read_cci_uint8(card, CCI_GPIO_DIRECTION_CONTROL);
TRACE("DEBUG === GPIO = %d (dir %d)\n", reg8, reg8_dir);
reg8 = spdif_read(card, CS84xx_VERSION_AND_CHIP_ID);
TRACE("DEBUG === S/PDif Version : 0x%x\n", reg8);
}
return B_OK;
}
uint8
read_gpio(ice1712 *ice)
{//return -1 if error else return an uint8
return read_cci_uint8(ice, CCI_GPIO_DATA);
}
