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Diffstat (limited to 'include/asm-frv/io.h')
-rw-r--r-- | include/asm-frv/io.h | 392 |
1 files changed, 0 insertions, 392 deletions
diff --git a/include/asm-frv/io.h b/include/asm-frv/io.h deleted file mode 100644 index ca7475e73b5..00000000000 --- a/include/asm-frv/io.h +++ /dev/null @@ -1,392 +0,0 @@ -/* io.h: FRV I/O operations - * - * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * 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; either version - * 2 of the License, or (at your option) any later version. - * - * This gets interesting when talking to the PCI bus - the CPU is in big endian - * mode, the PCI bus is little endian and the hardware in the middle can do - * byte swapping - */ -#ifndef _ASM_IO_H -#define _ASM_IO_H - -#ifdef __KERNEL__ - -#include <linux/types.h> -#include <asm/virtconvert.h> -#include <asm/string.h> -#include <asm/mb-regs.h> -#include <linux/delay.h> - -/* - * swap functions are sometimes needed to interface little-endian hardware - */ - -static inline unsigned short _swapw(unsigned short v) -{ - return ((v << 8) | (v >> 8)); -} - -static inline unsigned long _swapl(unsigned long v) -{ - return ((v << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | (v >> 24)); -} - -//#define __iormb() asm volatile("membar") -//#define __iowmb() asm volatile("membar") - -#define __raw_readb __builtin_read8 -#define __raw_readw __builtin_read16 -#define __raw_readl __builtin_read32 - -#define __raw_writeb(datum, addr) __builtin_write8(addr, datum) -#define __raw_writew(datum, addr) __builtin_write16(addr, datum) -#define __raw_writel(datum, addr) __builtin_write32(addr, datum) - -static inline void io_outsb(unsigned int addr, const void *buf, int len) -{ - unsigned long __ioaddr = (unsigned long) addr; - const uint8_t *bp = buf; - - while (len--) - __builtin_write8((volatile void __iomem *) __ioaddr, *bp++); -} - -static inline void io_outsw(unsigned int addr, const void *buf, int len) -{ - unsigned long __ioaddr = (unsigned long) addr; - const uint16_t *bp = buf; - - while (len--) - __builtin_write16((volatile void __iomem *) __ioaddr, (*bp++)); -} - -extern void __outsl_ns(unsigned int addr, const void *buf, int len); -extern void __outsl_sw(unsigned int addr, const void *buf, int len); -static inline void __outsl(unsigned int addr, const void *buf, int len, int swap) -{ - unsigned long __ioaddr = (unsigned long) addr; - - if (!swap) - __outsl_ns(__ioaddr, buf, len); - else - __outsl_sw(__ioaddr, buf, len); -} - -static inline void io_insb(unsigned long addr, void *buf, int len) -{ - uint8_t *bp = buf; - - while (len--) - *bp++ = __builtin_read8((volatile void __iomem *) addr); -} - -static inline void io_insw(unsigned long addr, void *buf, int len) -{ - uint16_t *bp = buf; - - while (len--) - *bp++ = __builtin_read16((volatile void __iomem *) addr); -} - -extern void __insl_ns(unsigned long addr, void *buf, int len); -extern void __insl_sw(unsigned long addr, void *buf, int len); -static inline void __insl(unsigned long addr, void *buf, int len, int swap) -{ - if (!swap) - __insl_ns(addr, buf, len); - else - __insl_sw(addr, buf, len); -} - -#define mmiowb() mb() - -/* - * make the short names macros so specific devices - * can override them as required - */ - -static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count) -{ - memset((void __force *) addr, val, count); -} - -static inline void memcpy_fromio(void *dst, const volatile void __iomem *src, int count) -{ - memcpy(dst, (void __force *) src, count); -} - -static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int count) -{ - memcpy((void __force *) dst, src, count); -} - -static inline uint8_t inb(unsigned long addr) -{ - return __builtin_read8((void __iomem *)addr); -} - -static inline uint16_t inw(unsigned long addr) -{ - uint16_t ret = __builtin_read16((void __iomem *)addr); - - if (__is_PCI_IO(addr)) - ret = _swapw(ret); - - return ret; -} - -static inline uint32_t inl(unsigned long addr) -{ - uint32_t ret = __builtin_read32((void __iomem *)addr); - - if (__is_PCI_IO(addr)) - ret = _swapl(ret); - - return ret; -} - -static inline void outb(uint8_t datum, unsigned long addr) -{ - __builtin_write8((void __iomem *)addr, datum); -} - -static inline void outw(uint16_t datum, unsigned long addr) -{ - if (__is_PCI_IO(addr)) - datum = _swapw(datum); - __builtin_write16((void __iomem *)addr, datum); -} - -static inline void outl(uint32_t datum, unsigned long addr) -{ - if (__is_PCI_IO(addr)) - datum = _swapl(datum); - __builtin_write32((void __iomem *)addr, datum); -} - -#define inb_p(addr) inb(addr) -#define inw_p(addr) inw(addr) -#define inl_p(addr) inl(addr) -#define outb_p(x,addr) outb(x,addr) -#define outw_p(x,addr) outw(x,addr) -#define outl_p(x,addr) outl(x,addr) - -#define outsb(a,b,l) io_outsb(a,b,l) -#define outsw(a,b,l) io_outsw(a,b,l) -#define outsl(a,b,l) __outsl(a,b,l,0) - -#define insb(a,b,l) io_insb(a,b,l) -#define insw(a,b,l) io_insw(a,b,l) -#define insl(a,b,l) __insl(a,b,l,0) - -#define IO_SPACE_LIMIT 0xffffffff - -static inline uint8_t readb(const volatile void __iomem *addr) -{ - return __builtin_read8((__force void volatile __iomem *) addr); -} - -static inline uint16_t readw(const volatile void __iomem *addr) -{ - uint16_t ret = __builtin_read16((__force void volatile __iomem *)addr); - - if (__is_PCI_MEM(addr)) - ret = _swapw(ret); - return ret; -} - -static inline uint32_t readl(const volatile void __iomem *addr) -{ - uint32_t ret = __builtin_read32((__force void volatile __iomem *)addr); - - if (__is_PCI_MEM(addr)) - ret = _swapl(ret); - - return ret; -} - -#define readb_relaxed readb -#define readw_relaxed readw -#define readl_relaxed readl - -static inline void writeb(uint8_t datum, volatile void __iomem *addr) -{ - __builtin_write8(addr, datum); - if (__is_PCI_MEM(addr)) - __flush_PCI_writes(); -} - -static inline void writew(uint16_t datum, volatile void __iomem *addr) -{ - if (__is_PCI_MEM(addr)) - datum = _swapw(datum); - - __builtin_write16(addr, datum); - if (__is_PCI_MEM(addr)) - __flush_PCI_writes(); -} - -static inline void writel(uint32_t datum, volatile void __iomem *addr) -{ - if (__is_PCI_MEM(addr)) - datum = _swapl(datum); - - __builtin_write32(addr, datum); - if (__is_PCI_MEM(addr)) - __flush_PCI_writes(); -} - - -/* Values for nocacheflag and cmode */ -#define IOMAP_FULL_CACHING 0 -#define IOMAP_NOCACHE_SER 1 -#define IOMAP_NOCACHE_NONSER 2 -#define IOMAP_WRITETHROUGH 3 - -extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag); - -static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size) -{ - return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); -} - -static inline void __iomem *ioremap_nocache(unsigned long physaddr, unsigned long size) -{ - return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); -} - -static inline void __iomem *ioremap_writethrough(unsigned long physaddr, unsigned long size) -{ - return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); -} - -static inline void __iomem *ioremap_fullcache(unsigned long physaddr, unsigned long size) -{ - return __ioremap(physaddr, size, IOMAP_FULL_CACHING); -} - -#define ioremap_wc ioremap_nocache - -extern void iounmap(void volatile __iomem *addr); - -static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) -{ - return (void __iomem *) port; -} - -static inline void ioport_unmap(void __iomem *p) -{ -} - -static inline void flush_write_buffers(void) -{ - __asm__ __volatile__ ("membar" : : :"memory"); -} - -/* - * do appropriate I/O accesses for token type - */ -static inline unsigned int ioread8(void __iomem *p) -{ - return __builtin_read8(p); -} - -static inline unsigned int ioread16(void __iomem *p) -{ - uint16_t ret = __builtin_read16(p); - if (__is_PCI_addr(p)) - ret = _swapw(ret); - return ret; -} - -static inline unsigned int ioread32(void __iomem *p) -{ - uint32_t ret = __builtin_read32(p); - if (__is_PCI_addr(p)) - ret = _swapl(ret); - return ret; -} - -static inline void iowrite8(u8 val, void __iomem *p) -{ - __builtin_write8(p, val); - if (__is_PCI_MEM(p)) - __flush_PCI_writes(); -} - -static inline void iowrite16(u16 val, void __iomem *p) -{ - if (__is_PCI_addr(p)) - val = _swapw(val); - __builtin_write16(p, val); - if (__is_PCI_MEM(p)) - __flush_PCI_writes(); -} - -static inline void iowrite32(u32 val, void __iomem *p) -{ - if (__is_PCI_addr(p)) - val = _swapl(val); - __builtin_write32(p, val); - if (__is_PCI_MEM(p)) - __flush_PCI_writes(); -} - -static inline void ioread8_rep(void __iomem *p, void *dst, unsigned long count) -{ - io_insb((unsigned long) p, dst, count); -} - -static inline void ioread16_rep(void __iomem *p, void *dst, unsigned long count) -{ - io_insw((unsigned long) p, dst, count); -} - -static inline void ioread32_rep(void __iomem *p, void *dst, unsigned long count) -{ - __insl_ns((unsigned long) p, dst, count); -} - -static inline void iowrite8_rep(void __iomem *p, const void *src, unsigned long count) -{ - io_outsb((unsigned long) p, src, count); -} - -static inline void iowrite16_rep(void __iomem *p, const void *src, unsigned long count) -{ - io_outsw((unsigned long) p, src, count); -} - -static inline void iowrite32_rep(void __iomem *p, const void *src, unsigned long count) -{ - __outsl_ns((unsigned long) p, src, count); -} - -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ -struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); -static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p) -{ -} - - -/* - * Convert a physical pointer to a virtual kernel pointer for /dev/mem - * access - */ -#define xlate_dev_mem_ptr(p) __va(p) - -/* - * Convert a virtual cached pointer to an uncached pointer - */ -#define xlate_dev_kmem_ptr(p) p - -#endif /* __KERNEL__ */ - -#endif /* _ASM_IO_H */ |