DMAE_CMD_SRC_SHIFT
opcode |= ((src_type << DMAE_CMD_SRC_SHIFT) |
#define DMAE_CMD_SRC_PCI (DMAE_SRC_PCI << DMAE_CMD_SRC_SHIFT)
#define DMAE_CMD_SRC_GRC (DMAE_SRC_GRC << DMAE_CMD_SRC_SHIFT)
DMAE_CMD_SRC_SHIFT;