slimbootloader/Silicon/ElkhartlakePkg/Include/Register/PchRegsHda.h

36 lines
1.6 KiB
C

/** @file
Register names for PCH High Definition Audio device.
Conventions:
- Prefixes:
Definitions beginning with "R_" are registers
Definitions beginning with "B_" are bits within registers
Definitions beginning with "V_" are meaningful values within the bits
Definitions beginning with "S_" are register sizes
Definitions beginning with "N_" are the bit position
- In general, PCH registers are denoted by "_PCH_" in register names
- Registers / bits that are different between PCH generations are denoted by
"_PCH_[generation_name]_" in register/bit names.
- Registers / bits that are specific to PCH-H denoted by "_H_" in register/bit names.
Registers / bits that are specific to PCH-LP denoted by "_LP_" in register/bit names.
e.g., "_PCH_H_", "_PCH_LP_"
Registers / bits names without _H_ or _LP_ apply for both H and LP.
- Registers / bits that are different between SKUs are denoted by "_[SKU_name]"
at the end of the register/bit names
- Registers / bits of new devices introduced in a PCH generation will be just named
as "_PCH_" without [generation_name] inserted.
Copyright (c) 1999 - 2016, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef _PCH_REGS_HDA_H_
#define _PCH_REGS_HDA_H_
#define R_PCH_HDABA_MLC 0x0C00 // Multiple Links Capability Structure (Memory Space, offset 0C00h)
#define R_PCH_HDABA_LCTLX(x) (R_PCH_HDABA_MLC + (0x40 + (0x40 * (x)) + 0x04)) // x - Link index: 0 - HDA Link, 1 - iDisp Link
#endif