| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Intel HDA audio codec config. This is a mechanicm to configure codecs when |
| * using Intel HDA audio. |
| * |
| * Copyright 2018 Google LLC |
| * Written by Simon Glass <sjg@chromium.org> |
| */ |
| |
| #ifndef __AZALIA_H |
| #define __AZALIA_H |
| |
| #define AZALIA_CODEC_SHIFT 28 |
| #define AZALIA_NID_SHIFT 20 |
| #define AZALIA_VERB_SHIFT 8 |
| |
| /* Supported opcodes */ |
| #define AZALIA_OPCODE_CONFIG_DEFAULT 0x71c |
| #define AZALIA_OPCODE_IMPL_ID 0x720 |
| #define AZALIA_OPCODE_READ_PARAM 0xf00 |
| |
| #define AZALIA_PARAM_VENDOR_ID 0 |
| |
| /* Generate the register value to write a particular byte of a 32-bit value */ |
| #define AZALIA_SET_BYTE(codec, nid, opcode, val, byte) \ |
| ((codec) << AZALIA_CODEC_SHIFT | \ |
| (nid) << AZALIA_NID_SHIFT | \ |
| ((opcode) + (byte)) << AZALIA_VERB_SHIFT | \ |
| (((val) >> ((byte) * 8)) & 0xff)) |
| |
| /* Generate the register value to write all bytes of a 32-bit value */ |
| #define AZALIA_WORD(codec, nid, opcode, val) \ |
| (AZALIA_SET_BYTE(codec, nid, opcode, val, 0) | \ |
| AZALIA_SET_BYTE(codec, nid, opcode, val, 1) | \ |
| AZALIA_SET_BYTE(codec, nid, opcode, val, 2) | \ |
| AZALIA_SET_BYTE(codec, nid, opcode, val, 3)) |
| |
| #define AZALIA_PIN_CFG(codec, nid, val) \ |
| AZALIA_WORD(codec, nid, AZALIA_OPCODE_CONFIG_DEFAULT, val) |
| |
| #define AZALIA_SUBVENDOR(codec, val) \ |
| AZALIA_WORD(codec, 1, AZALIA_OPCODE_IMPL_ID, val) |
| |
| #endif /* __AZALIA_H */ |
