static void spu_cb(void * p)
{
if (p) {
dma_chain_t * chain = (dma_chain_t *) p;
if (chain->src == NULL) {
free_chain(chain);
} else {
sem_signal(chain->sema);
if (chain->waiting_thd)
thd_schedule_next(chain->waiting_thd);
chain->dest = 0; /* mark dma completed */
}
if (spu_chain_head == NULL)
;//draw_unlock();
vid_border_color(0, 0, 0);
spu_transfering = 0;
} else
;//bba_lock();
//asic_evt_disable(ASIC_EVT_EXP_PCI, ASIC_IRQB);
if (spu_chain_head) {
dma_chain_t * chain = spu_chain_head;
spu_transfering = 1;
vid_border_color(0, 255, 0);
switch(chain->type) {
/* case DMA_TYPE_VRAM: */
/* pvr_txr_load_dma(chain->src, chain->dest, */
/* chain->count, 0, spu_cb, chain); */
/* break; */
case DMA_TYPE_SPU:
dma_cache_flush(chain->src, chain->count);
spu_dma_transfer(chain->src, chain->dest, chain->count, 0,
spu_cb, chain);
break;
case DMA_TYPE_BBA_RX:
g2_dma_transfer(chain->dest, chain->src, chain->count, 0,
spu_cb, chain, 1, bba_dma_mode, 1, 3);
break;
default:
panic("got bad dma chain type in spu_cb\n");
}
spu_chain_head = chain->next;
} else {
//asic_evt_enable(ASIC_EVT_EXP_PCI, ASIC_IRQB);
;//bba_unlock();
}
}
static void spu_memload_stereo16(int leftpos, int rightpos, void *src0, size_t size)
{
register uint16 *src = src0;
#if 0
sep_data(src, size, 1);
dcache_flush_range((unsigned)sep_buffer, size);
dmadest = rightpos;
dmacnt = size / 2;
spu_dma_transfer(sep_buffer[0], leftpos, size / 2, -1, spu_dma_transfer2, 0);
//spu_dma_transfer(sep_buffer[1], rightpos, size / 2, -1, NULL, 0);
#else
register uint32 *left = (uint32*)(leftpos + SPU_RAM_BASE);
register uint32 *right = (uint32*)(rightpos + SPU_RAM_BASE);
size = (size+7)/8;
unsigned lval, rval, old = 0;
while(size--) {
lval = *src++;
rval = *src++;
lval|= (*src++)<<16;
rval|= (*src++)<<16;
g2_fifo_wait();
G2_LOCK(old);
*left++=lval;
*right++=rval;
G2_UNLOCK(old);
/*
g2_write_32(*left++,lval);
g2_write_32(*right++,rval);
g2_fifo_wait();*/
}
#endif
}
static void spu_dma_transfer2(ptr_t data) {
spu_dma_transfer(sep_buffer[1], dmadest, dmacnt, -1, NULL, 0);
}