blob: 5097ac99b8f15ae6182e7716c583db779be90ef0 [file] [log] [blame]
/*
* This file is part of the flashrom project.
*
* Copyright (C) 2009 Carl-Daniel Hailfinger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
/*
* Header file for hardware access and OS abstraction. Included from flash.h.
*/
#ifndef __HWACCESS_H__
#define __HWACCESS_H__ 1
#include "platform.h"
#if NEED_PCI == 1
/*
* libpci headers use the variable name "index" which triggers shadowing
* warnings on systems which have the index() function in a default #include
* or as builtin.
*/
#define index shadow_workaround_index
#if !defined (__NetBSD__)
#include <pci/pci.h>
#else
#include <pciutils/pci.h>
#endif
#undef index
#endif /* NEED_PCI == 1 */
#define ___constant_swab8(x) ((uint8_t) ( \
(((uint8_t)(x) & (uint8_t)0xffU))))
#define ___constant_swab16(x) ((uint16_t) ( \
(((uint16_t)(x) & (uint16_t)0x00ffU) << 8) | \
(((uint16_t)(x) & (uint16_t)0xff00U) >> 8)))
#define ___constant_swab32(x) ((uint32_t) ( \
(((uint32_t)(x) & (uint32_t)0x000000ffUL) << 24) | \
(((uint32_t)(x) & (uint32_t)0x0000ff00UL) << 8) | \
(((uint32_t)(x) & (uint32_t)0x00ff0000UL) >> 8) | \
(((uint32_t)(x) & (uint32_t)0xff000000UL) >> 24)))
#define ___constant_swab64(x) ((uint64_t) ( \
(((uint64_t)(x) & (uint64_t)0x00000000000000ffULL) << 56) | \
(((uint64_t)(x) & (uint64_t)0x000000000000ff00ULL) << 40) | \
(((uint64_t)(x) & (uint64_t)0x0000000000ff0000ULL) << 24) | \
(((uint64_t)(x) & (uint64_t)0x00000000ff000000ULL) << 8) | \
(((uint64_t)(x) & (uint64_t)0x000000ff00000000ULL) >> 8) | \
(((uint64_t)(x) & (uint64_t)0x0000ff0000000000ULL) >> 24) | \
(((uint64_t)(x) & (uint64_t)0x00ff000000000000ULL) >> 40) | \
(((uint64_t)(x) & (uint64_t)0xff00000000000000ULL) >> 56)))
#if defined (__FLASHROM_BIG_ENDIAN__)
#define cpu_to_le(bits) \
static inline uint##bits##_t cpu_to_le##bits(uint##bits##_t val) \
{ \
return ___constant_swab##bits(val); \
}
cpu_to_le(8)
cpu_to_le(16)
cpu_to_le(32)
cpu_to_le(64)
#define cpu_to_be8
#define cpu_to_be16
#define cpu_to_be32
#define cpu_to_be64
#elif defined (__FLASHROM_LITTLE_ENDIAN__)
#define cpu_to_be(bits) \
static inline uint##bits##_t cpu_to_be##bits(uint##bits##_t val) \
{ \
return ___constant_swab##bits(val); \
}
cpu_to_be(8)
cpu_to_be(16)
cpu_to_be(32)
cpu_to_be(64)
#define cpu_to_le8
#define cpu_to_le16
#define cpu_to_le32
#define cpu_to_le64
#endif /* __FLASHROM_BIG_ENDIAN__ / __FLASHROM_LITTLE_ENDIAN__ */
#define be_to_cpu8 cpu_to_be8
#define be_to_cpu16 cpu_to_be16
#define be_to_cpu32 cpu_to_be32
#define be_to_cpu64 cpu_to_be64
#define le_to_cpu8 cpu_to_le8
#define le_to_cpu16 cpu_to_le16
#define le_to_cpu32 cpu_to_le32
#define le_to_cpu64 cpu_to_le64
#if NEED_RAW_ACCESS == 1
#if IS_X86
#include "hwaccess_x86_io.h"
#if !(defined(__MACH__) && defined(__APPLE__)) && !defined(__FreeBSD__) && !defined(__FreeBSD_kernel__) && !defined(__DragonFly__) && !defined(__LIBPAYLOAD__)
typedef struct { uint32_t hi, lo; } msr_t;
msr_t rdmsr(int addr);
int wrmsr(int addr, msr_t msr);
#endif
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
/* FreeBSD already has conflicting definitions for wrmsr/rdmsr. */
#undef rdmsr
#undef wrmsr
#define rdmsr freebsd_rdmsr
#define wrmsr freebsd_wrmsr
typedef struct { uint32_t hi, lo; } msr_t;
msr_t freebsd_rdmsr(int addr);
int freebsd_wrmsr(int addr, msr_t msr);
#endif
#if defined(__LIBPAYLOAD__)
#include <arch/io.h>
#include <arch/msr.h>
typedef struct { uint32_t hi, lo; } msr_t;
msr_t libpayload_rdmsr(int addr);
int libpayload_wrmsr(int addr, msr_t msr);
#undef rdmsr
#define rdmsr libpayload_rdmsr
#define wrmsr libpayload_wrmsr
#endif
#elif IS_PPC
/* PCI port I/O is not yet implemented on PowerPC. */
#elif IS_MIPS
/* PCI port I/O is not yet implemented on MIPS. */
#elif IS_SPARC
/* PCI port I/O is not yet implemented on SPARC. */
#elif IS_ARM
/* Non memory mapped I/O is not supported on ARM. */
#elif IS_ARC
/* Non memory mapped I/O is not supported on ARC. */
#else
#error Unknown architecture, please check if it supports PCI port IO.
#endif /* IS_* */
#endif /* NEED_RAW_ACCESS == 1 */
#endif /* !__HWACCESS_H__ */