1*2ca47137SSimon Glass /* SPDX-License-Identifier: GPL-2.0+ */ 2*2ca47137SSimon Glass /* 3*2ca47137SSimon Glass * Intel HDA audio codec config. This is a mechanicm to configure codecs when 4*2ca47137SSimon Glass * using Intel HDA audio. 5*2ca47137SSimon Glass * 6*2ca47137SSimon Glass * Copyright 2018 Google LLC 7*2ca47137SSimon Glass * Written by Simon Glass <sjg@chromium.org> 8*2ca47137SSimon Glass */ 9*2ca47137SSimon Glass 10*2ca47137SSimon Glass #ifndef __AZALIA_H 11*2ca47137SSimon Glass #define __AZALIA_H 12*2ca47137SSimon Glass 13*2ca47137SSimon Glass #define AZALIA_CODEC_SHIFT 28 14*2ca47137SSimon Glass #define AZALIA_NID_SHIFT 20 15*2ca47137SSimon Glass #define AZALIA_VERB_SHIFT 8 16*2ca47137SSimon Glass 17*2ca47137SSimon Glass /* Supported opcodes */ 18*2ca47137SSimon Glass #define AZALIA_OPCODE_CONFIG_DEFAULT 0x71c 19*2ca47137SSimon Glass #define AZALIA_OPCODE_IMPL_ID 0x720 20*2ca47137SSimon Glass #define AZALIA_OPCODE_READ_PARAM 0xf00 21*2ca47137SSimon Glass 22*2ca47137SSimon Glass #define AZALIA_PARAM_VENDOR_ID 0 23*2ca47137SSimon Glass 24*2ca47137SSimon Glass /* Generate the register value to write a particular byte of a 32-bit value */ 25*2ca47137SSimon Glass #define AZALIA_SET_BYTE(codec, nid, opcode, val, byte) \ 26*2ca47137SSimon Glass ((codec) << AZALIA_CODEC_SHIFT | \ 27*2ca47137SSimon Glass (nid) << AZALIA_NID_SHIFT | \ 28*2ca47137SSimon Glass ((opcode) + (byte)) << AZALIA_VERB_SHIFT | \ 29*2ca47137SSimon Glass (((val) >> ((byte) * 8)) & 0xff)) 30*2ca47137SSimon Glass 31*2ca47137SSimon Glass /* Generate the register value to write all bytes of a 32-bit value */ 32*2ca47137SSimon Glass #define AZALIA_WORD(codec, nid, opcode, val) \ 33*2ca47137SSimon Glass (AZALIA_SET_BYTE(codec, nid, opcode, val, 0) | \ 34*2ca47137SSimon Glass AZALIA_SET_BYTE(codec, nid, opcode, val, 1) | \ 35*2ca47137SSimon Glass AZALIA_SET_BYTE(codec, nid, opcode, val, 2) | \ 36*2ca47137SSimon Glass AZALIA_SET_BYTE(codec, nid, opcode, val, 3)) 37*2ca47137SSimon Glass 38*2ca47137SSimon Glass #define AZALIA_PIN_CFG(codec, nid, val) \ 39*2ca47137SSimon Glass AZALIA_WORD(codec, nid, AZALIA_OPCODE_CONFIG_DEFAULT, val) 40*2ca47137SSimon Glass 41*2ca47137SSimon Glass #define AZALIA_SUBVENDOR(codec, val) \ 42*2ca47137SSimon Glass AZALIA_WORD(codec, 1, AZALIA_OPCODE_IMPL_ID, val) 43*2ca47137SSimon Glass 44*2ca47137SSimon Glass #endif /* __AZALIA_H */ 45