/* 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