/* * linux/include/asm-m68k/raw_io.h * * 10/20/00 RZ: - created from bits of io.h and ide.h to cleanup namespace * */ #ifndef _RAW_IO_H #define _RAW_IO_H #ifdef __KERNEL__ #include <asm/types.h> /* 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 iounmap(void __iomem *addr); extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag); extern void __iounmap(void *addr, unsigned long size); /* ++roman: The assignments to temp. vars avoid that gcc sometimes generates * two accesses to memory, which may be undesirable for some devices. */ #define in_8(addr) \ ({ u8 __v = (*(__force volatile u8 *) (addr)); __v; }) #define in_be16(addr) \ ({ u16 __v = (*(__force volatile u16 *) (addr)); __v; }) #define in_be32(addr) \ ({ u32 __v = (*(__force volatile u32 *) (addr)); __v; }) #define in_le16(addr) \ ({ u16 __v = le16_to_cpu(*(__force volatile __le16 *) (addr)); __v; }) #define in_le32(addr) \ ({ u32 __v = le32_to_cpu(*(__force volatile __le32 *) (addr)); __v; }) #define out_8(addr,b) (void)((*(__force volatile u8 *) (addr)) = (b)) #define out_be16(addr,w) (void)((*(__force volatile u16 *) (addr)) = (w)) #define out_be32(addr,l) (void)((*(__force volatile u32 *) (addr)) = (l)) #define out_le16(addr,w) (void)((*(__force volatile __le16 *) (addr)) = cpu_to_le16(w)) #define out_le32(addr,l) (void)((*(__force volatile __le32 *) (addr)) = cpu_to_le32(l)) #define raw_inb in_8 #define raw_inw in_be16 #define raw_inl in_be32 #define __raw_readb in_8 #define __raw_readw in_be16 #define __raw_readl in_be32 #define raw_outb(val,port) out_8((port),(val)) #define raw_outw(val,port) out_be16((port),(val)) #define raw_outl(val,port) out_be32((port),(val)) #define __raw_writeb(val,addr) out_8((addr),(val)) #define __raw_writew(val,addr) out_be16((addr),(val)) #define __raw_writel(val,addr) out_be32((addr),(val)) static inline void raw_insb(volatile u8 __iomem *port, u8 *buf, unsigned int len) { unsigned int i; for (i = 0; i < len; i++) *buf++ = in_8(port); } static inline void raw_outsb(volatile u8 __iomem *port, const u8 *buf, unsigned int len) { unsigned int i; for (i = 0; i < len; i++) out_8(port, *buf++); } static inline void raw_insw(volatile u16 __iomem *port, u16 *buf, unsigned int nr) { unsigned int tmp; if (nr & 15) { tmp = (nr & 15) - 1; asm volatile ( "1: movew %2@,%0@+; dbra %1,1b" : "=a" (buf), "=d" (tmp) : "a" (port), "0" (buf), "1" (tmp)); } if (nr >> 4) { tmp = (nr >> 4) - 1; asm volatile ( "1: " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "movew %2@,%0@+; " "dbra %1,1b" : "=a" (buf), "=d" (tmp) : "a" (port), "0" (buf), "1" (tmp)); } } static inline void raw_outsw(volatile u16 __iomem *port, const u16 *buf, unsigned int nr) { unsigned int tmp; if (nr & 15) { tmp = (nr & 15) - 1; asm volatile ( "1: movew %0@+,%2@; dbra %1,1b" : "=a" (buf), "=d" (tmp) : "a" (port), "0" (buf), "1" (tmp)); } if (nr >> 4) { tmp = (nr >> 4) - 1; asm volatile ( "1: " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "movew %0@+,%2@; " "dbra %1,1b" : "=a" (buf), "=d" (tmp) : "a" (port), "0" (buf), "1" (tmp)); } } static inline void raw_insl(volatile u32 __iomem *port, u32 *buf, unsigned int nr) { unsigned int tmp; if (nr & 15) { tmp = (nr & 15) - 1; asm volatile ( "1: movel %2@,%0@+; dbra %1,1b" : "=a" (buf), "=d" (tmp) : "a" (port), "0" (buf), "1" (tmp)); } if (nr >> 4) { tmp = (nr >> 4) - 1; asm volatile ( "1: " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "movel %2@,%0@+; " "dbra %1,1b" : "=a" (buf), "=d" (tmp) : "a" (port), "0" (buf), "1" (tmp)); } } static inline void raw_outsl(volatile u32 __iomem *port, const u32 *buf, unsigned int nr) { unsigned int tmp; if (nr & 15) { tmp = (nr & 15) - 1; asm volatile ( "1: movel %0@+,%2@; dbra %1,1b" : "=a" (buf), "=d" (tmp) : "a" (port), "0" (buf), "1" (tmp)); } if (nr >> 4) { tmp = (nr >> 4) - 1; asm volatile ( "1: " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "movel %0@+,%2@; " "dbra %1,1b" : "=a" (buf), "=d" (tmp) : "a" (port), "0" (buf), "1" (tmp)); } } static inline void raw_insw_swapw(volatile u16 __iomem *port, u16 *buf, unsigned int nr) { if ((nr) % 8) __asm__ __volatile__ ("\tmovel %0,%/a0\n\t" "movel %1,%/a1\n\t" "movel %2,%/d6\n\t" "subql #1,%/d6\n" "1:\tmovew %/a0@,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a1@+\n\t" "dbra %/d6,1b" : : "g" (port), "g" (buf), "g" (nr) : "d0", "a0", "a1", "d6"); else __asm__ __volatile__ ("movel %0,%/a0\n\t" "movel %1,%/a1\n\t" "movel %2,%/d6\n\t" "lsrl #3,%/d6\n\t" "subql #1,%/d6\n" "1:\tmovew %/a0@,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a1@+\n\t" "movew %/a0@,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a1@+\n\t" "movew %/a0@,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a1@+\n\t" "movew %/a0@,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a1@+\n\t" "movew %/a0@,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a1@+\n\t" "movew %/a0@,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a1@+\n\t" "movew %/a0@,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a1@+\n\t" "movew %/a0@,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a1@+\n\t" "dbra %/d6,1b" : : "g" (port), "g" (buf), "g" (nr) : "d0", "a0", "a1", "d6"); } static inline void raw_outsw_swapw(volatile u16 __iomem *port, const u16 *buf, unsigned int nr) { if ((nr) % 8) __asm__ __volatile__ ("movel %0,%/a0\n\t" "movel %1,%/a1\n\t" "movel %2,%/d6\n\t" "subql #1,%/d6\n" "1:\tmovew %/a1@+,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a0@\n\t" "dbra %/d6,1b" : : "g" (port), "g" (buf), "g" (nr) : "d0", "a0", "a1", "d6"); else __asm__ __volatile__ ("movel %0,%/a0\n\t" "movel %1,%/a1\n\t" "movel %2,%/d6\n\t" "lsrl #3,%/d6\n\t" "subql #1,%/d6\n" "1:\tmovew %/a1@+,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a0@\n\t" "movew %/a1@+,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a0@\n\t" "movew %/a1@+,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a0@\n\t" "movew %/a1@+,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a0@\n\t" "movew %/a1@+,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a0@\n\t" "movew %/a1@+,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a0@\n\t" "movew %/a1@+,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a0@\n\t" "movew %/a1@+,%/d0\n\t" "rolw #8,%/d0\n\t" "movew %/d0,%/a0@\n\t" "dbra %/d6,1b" : : "g" (port), "g" (buf), "g" (nr) : "d0", "a0", "a1", "d6"); } #endif /* __KERNEL__ */ #endif /* _RAW_IO_H */