iBoot/drivers/apple/h2fmi/soc.h

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2023-07-08 13:03:17 -07:00
/*
* Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
*
* This document is the property of Apple Computer, Inc.
* It is considered confidential and proprietary.
*
* This document may not be reproduced or transmitted in any form,
* in whole or in part, without the express written permission of
* Apple Computer, Inc.
*/
#ifndef _H_SOC_
#define _H_SOC_ 1
#define SAMSUNG 0
#define PROC_REG_UCHAR_RW(a) ((volatile unsigned char *) (a))
#define PROC_REG_UCHAR_RO(a) ((volatile const unsigned char *) (a))
#define PROC_REG_USHORT_RW(a) ((volatile unsigned short *) (a))
#define PROC_REG_USHORT_RO(a) ((volatile const unsigned short *) (a))
#define PROC_REG_ULONG_RW(a) ((volatile unsigned long *) (a))
#define PROC_REG_ULONG_RO(a) ((volatile const unsigned long *) (a))
#define FLD_SHIFT(abc, ab) (abc << (0? ab))
// This returns a mask for m:n where only bits m to n are set
// Yes, this could be expressed perhaps with fewer characters, but this version is very readable
// and it is evaluated at compile time anyway... Are you sure you want to optimize it? 02/10/2006 sjb
#define NET_MASK(a) (0xffffffffUL >> (0?a) << (0?a) << (31-(1?a)) >> (31-(1?a)))
#define NET_SHIFT(a) ((0?a) % 32)
// Macros for regular registers
// Read or write entire register
#define mmioReg_Val(a) (mmioReg(a))
/// Read or write a particular field
#define mmioReg_ReadFld(a, b) ((mmioReg(a) & NET_MASK(a ## b)) >> NET_SHIFT(a ## b))
#define mmioReg_WriteFld(a, b, c) ((mmioReg(a) = ((mmioReg(a) & ~NET_MASK(a ## b))) | FLD_SHIFT(a ## b ## c, a ## b)))
// Write a value to a particular field
#define mmioReg_WriteFldVal(a, b, c) ((mmioReg(a) = ((mmioReg(a) & ~NET_MASK(a ## b))) | c))
// I turned these off because they are not used yet, and because I'm not sure they're correct.
// Feel free to turn them on when you're ready to test them too... 02/10/2006 sjb
#if 1
// Macros for registers with base offsets
// Read or write entire register
#define mmioReg_Val_Base(a, d) (mmioReg(a(d)))
/// Read or write a particular field
#define mmioReg_ReadFld_Base(a, b, d) ((mmioReg(a(d)) & NET_MASK(a ## b)) >> NET_SHIFT(a ## b))
#define mmioReg_WriteFld_Base(a, b, c, d) ((mmioReg(a(d)) = ((mmioReg(a(d)) & ~NET_MASK(a ## b))) | FLD_SHIFT(a ## b ## c, a ## b)))
// Write a value to a particular field
#define mmioReg_WriteFldVal_Base(a, b, c, d) ((mmioReg(a(d)) = ((mmioReg(a(d)) & ~NET_MASK(a ## b))) | c))
#endif
// Macros for setting fields
#define SetFld(a, b, c) (NET_MASK(a ## b) & FLD_SHIFT(a ## b ## c, a ## b))
#define SetFldVal(a, b, c) (NET_MASK(a ## b) & FLD_SHIFT(c, a ## b))
#if 0
#ifdef SAMSUNG
#include "samsung/soc8900.h"
#else
// Include soc files for other platforms
#endif
#endif
#endif // _H_SOC_