src_set_ca
int (*src_set_ca)(void *blk, unsigned int ca);
.src_set_ca = src_set_ca,
.src_set_ca = src_set_ca,
hw->src_set_ca(src->rsc.ctrl_blk, ca);
hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
hw->src_set_ca(src->rsc.ctrl_blk, 0x80);
.set_ca = src_set_ca,