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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* I/O device access primitives. Simplified based on related U-Boot code,
* which is in turn based on early versions from the Linux kernel:
*
* Copyright (C) 1996-2000 Russell King
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ARCH_GENERIC_IO_H__
#define __ARCH_GENERIC_IO_H__
#include <stdint.h>
#include <stddef.h>
#include <endian.h>
#include <arch/mmio.h>
#define __io(a) (void *)(uintptr_t)(CONFIG_PCI_IOBASE + a)
static inline void outb(uint8_t value, uint16_t port)
{
write8(__io(port), value);
}
static inline void outw(uint16_t value, uint16_t port)
{
write16(__io(port), cpu_to_le16(value));
}
static inline void outl(uint32_t value, uint16_t port)
{
write32(__io(port), cpu_to_le32(value));
}
static inline uint8_t inb(uint16_t port)
{
return read8(__io(port));
}
static inline uint16_t inw(uint16_t port)
{
return le16_to_cpu(read16(__io(port)));
}
static inline uint32_t inl(uint16_t port)
{
return le32_to_cpu(read32(__io(port)));
}
static inline void outsb(uint16_t port, const void *addr, unsigned long count)
{
uint8_t *buf = (uint8_t *)addr;
while (count--)
write8(__io(port), *buf++);
}
static inline void outsw(uint16_t port, const void *addr, unsigned long count)
{
uint16_t *buf = (uint16_t *)addr;
while (count--)
write16(__io(port), *buf++);
}
static inline void outsl(uint16_t port, const void *addr, unsigned long count)
{
uint32_t *buf = (uint32_t *)addr;
while (count--)
write32(__io(port), *buf++);
}
static inline void insb(uint16_t port, void *addr, unsigned long count)
{
uint8_t *buf = (uint8_t *)addr;
while (count--)
*buf++ = read8(__io(port));
}
static inline void insw(uint16_t port, void *addr, unsigned long count)
{
uint16_t *buf = (uint16_t *)addr;
while (count--)
*buf++ = read16(__io(port));
}
static inline void insl(uint16_t port, void *addr, unsigned long count)
{
uint32_t *buf = (uint32_t *)addr;
while (count--)
*buf++ = read32(__io(port));
}
#endif
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