static int via_read_codec(kobj_t obj, void *addr, int reg) { struct via_info *via = addr; if (via_waitready_codec(via)) return -1; via_wr(via, VIA_CODEC_CTL, VIA_CODEC_PRIVALID | VIA_CODEC_READ | VIA_CODEC_INDEX(reg),4); if (via_waitready_codec(via)) return -1; if (via_waitvalid_codec(via)) return -1; return via_rd(via, VIA_CODEC_CTL, 2); }
static int via_write_codec(kobj_t obj, void *addr, int reg, u_int32_t val) { struct via_info *via = addr; if (via_waitready_codec(via)) return -1; via_wr(via, VIA_CODEC_CTL, VIA_CODEC_PRIVALID | VIA_CODEC_INDEX(reg) | val, 4); return 0; }
static int via_write_codec(kobj_t obj, void *addr, int reg, u_int32_t val) { struct via_info *via = addr; if (via_waitready_codec(via)) return -1; via_wr(via, VIA_AC97_CONTROL, VIA_AC97_CODEC00_VALID | VIA_AC97_INDEX(reg) | VIA_AC97_DATA(val), 4); return 0; }