REG_WRITE_4
REG_WRITE_4(0x2800, 0x000f); /* Master volume: Max */
REG_WRITE_4(0x28b4, 0x0020); /* INT Enable to SH4 */
REG_WRITE_4(0x28b8, 0x0020);
REG_WRITE_4(0x28b8, 0x0020);
REG_WRITE_4(0x28b4, 0x0020); /* INT Enable to SH4 */
REG_WRITE_4(0x2800, L256TO16(aicacmd->l_param));
#define CH_WRITE_4(ch,off,val) REG_WRITE_4(((ch) << 7) + (off), val)
REG_WRITE_4(0x2800, 0x0000); /* Master volume: Min */