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Includes: Update HdaRegisters.h

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Goldfish64 2020-05-09 16:49:19 -05:00
parent a271916d08
commit fd7cc9e325
1 changed files with 28 additions and 1 deletions
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29
Include/IndustryStandard/HdaRegisters.h
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@ -1,7 +1,7 @@
/*
* File: HdaRegisters.h
*
* Copyright (c) 2018 John Davis
* Copyright (c) 2018, 2020 John Davis
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -254,4 +254,31 @@
// Input/Output/Bidirectional Stream Descriptor n Link Position in Buffer Alias; 4 bytes.
#define HDA_REG_SDNLPIBA(n) (0x2084 + (0x20 * (n)))
//
// Ring buffer register offsets (CORB and RIRB).
//
#define HDA_REG_CORB_BASE 0x40
#define HDA_REG_RIRB_BASE 0x50
#define HDA_OFFSET_RING_BASE 0x00
#define HDA_OFFSET_RING_UBASE 0x04
#define HDA_OFFSET_RING_WP 0x08
#define HDA_OFFSET_RING_RP 0x0A
#define HDA_OFFSET_RING_CTL 0x0C
#define HDA_OFFSET_RING_CTL_RUN BIT1
#define HDA_OFFSET_RING_STS 0x0D
#define HDA_OFFSET_RING_SIZE 0x0E
#define HDA_OFFSET_RING_SIZE_MASK (BIT0 | BIT1)
#define HDA_OFFSET_RING_SIZE_ENT2 0 // 2 entries.
#define HDA_OFFSET_RING_SIZE_ENT16 BIT0 // 16 entries.
#define HDA_OFFSET_RING_SIZE_ENT256 BIT1 // 256 entries.
#define HDA_OFFSET_RING_SIZE_SZCAP_2 BIT4 // 2 entries.
#define HDA_OFFSET_RING_SIZE_SZCAP_16 BIT5 // 16 entries.
#define HDA_OFFSET_RING_SIZE_SZCAP_256 BIT6 // 256 entries.
#endif // EFI_HDA_REGS_H