Robin Getz | 96f1050 | 2009-09-24 14:11:24 +0000 | [diff] [blame] | 1 | /* |
Mike Frysinger | cfbf167 | 2010-02-16 04:03:18 -0500 | [diff] [blame] | 2 | * Copyright 2004-2010 Analog Devices Inc. |
Robin Getz | 96f1050 | 2009-09-24 14:11:24 +0000 | [diff] [blame] | 3 | * |
| 4 | * Licensed under the GPL-2 or later. |
| 5 | */ |
| 6 | |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 7 | #ifndef _BFIN_IO_H |
| 8 | #define _BFIN_IO_H |
| 9 | |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 10 | #include <linux/compiler.h> |
Mike Frysinger | cfbf167 | 2010-02-16 04:03:18 -0500 | [diff] [blame] | 11 | #include <linux/types.h> |
| 12 | #include <asm/byteorder.h> |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 13 | |
Mike Frysinger | cfbf167 | 2010-02-16 04:03:18 -0500 | [diff] [blame] | 14 | #define DECLARE_BFIN_RAW_READX(size, type, asm, asm_sign) \ |
| 15 | static inline type __raw_read##size(const volatile void __iomem *addr) \ |
| 16 | { \ |
| 17 | unsigned int val; \ |
| 18 | int tmp; \ |
| 19 | __asm__ __volatile__ ( \ |
| 20 | "cli %1;" \ |
| 21 | "NOP; NOP; SSYNC;" \ |
| 22 | "%0 = "#asm" [%2] "#asm_sign";" \ |
| 23 | "sti %1;" \ |
| 24 | : "=d"(val), "=d"(tmp) \ |
| 25 | : "a"(addr) \ |
| 26 | ); \ |
| 27 | return (type) val; \ |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 28 | } |
Mike Frysinger | cfbf167 | 2010-02-16 04:03:18 -0500 | [diff] [blame] | 29 | DECLARE_BFIN_RAW_READX(b, u8, b, (z)) |
| 30 | #define __raw_readb __raw_readb |
| 31 | DECLARE_BFIN_RAW_READX(w, u16, w, (z)) |
| 32 | #define __raw_readw __raw_readw |
| 33 | DECLARE_BFIN_RAW_READX(l, u32, , ) |
| 34 | #define __raw_readl __raw_readl |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 35 | |
Bryan Wu | b7b2d344 | 2007-10-09 15:09:49 +0800 | [diff] [blame] | 36 | extern void outsb(unsigned long port, const void *addr, unsigned long count); |
| 37 | extern void outsw(unsigned long port, const void *addr, unsigned long count); |
Michael Hennerich | 5906967 | 2008-05-17 16:38:52 +0800 | [diff] [blame] | 38 | extern void outsw_8(unsigned long port, const void *addr, unsigned long count); |
Bryan Wu | b7b2d344 | 2007-10-09 15:09:49 +0800 | [diff] [blame] | 39 | extern void outsl(unsigned long port, const void *addr, unsigned long count); |
Mike Frysinger | cfbf167 | 2010-02-16 04:03:18 -0500 | [diff] [blame] | 40 | #define outsb outsb |
| 41 | #define outsw outsw |
| 42 | #define outsl outsl |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 43 | |
Bryan Wu | b7b2d344 | 2007-10-09 15:09:49 +0800 | [diff] [blame] | 44 | extern void insb(unsigned long port, void *addr, unsigned long count); |
| 45 | extern void insw(unsigned long port, void *addr, unsigned long count); |
Michael Hennerich | 5906967 | 2008-05-17 16:38:52 +0800 | [diff] [blame] | 46 | extern void insw_8(unsigned long port, void *addr, unsigned long count); |
Bryan Wu | b7b2d344 | 2007-10-09 15:09:49 +0800 | [diff] [blame] | 47 | extern void insl(unsigned long port, void *addr, unsigned long count); |
Michael Hennerich | 5c91fb9 | 2007-11-17 23:46:58 +0800 | [diff] [blame] | 48 | extern void insl_16(unsigned long port, void *addr, unsigned long count); |
Mike Frysinger | cfbf167 | 2010-02-16 04:03:18 -0500 | [diff] [blame] | 49 | #define insb insb |
| 50 | #define insw insw |
| 51 | #define insl insl |
Michael Hennerich | 23ee968 | 2007-05-21 18:09:17 +0800 | [diff] [blame] | 52 | |
Bryan Wu | b7b2d344 | 2007-10-09 15:09:49 +0800 | [diff] [blame] | 53 | extern void dma_outsb(unsigned long port, const void *addr, unsigned short count); |
| 54 | extern void dma_outsw(unsigned long port, const void *addr, unsigned short count); |
| 55 | extern void dma_outsl(unsigned long port, const void *addr, unsigned short count); |
Michael Hennerich | 23ee968 | 2007-05-21 18:09:17 +0800 | [diff] [blame] | 56 | |
Bryan Wu | b7b2d344 | 2007-10-09 15:09:49 +0800 | [diff] [blame] | 57 | extern void dma_insb(unsigned long port, void *addr, unsigned short count); |
| 58 | extern void dma_insw(unsigned long port, void *addr, unsigned short count); |
| 59 | extern void dma_insl(unsigned long port, void *addr, unsigned short count); |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 60 | |
Mike Frysinger | cfbf167 | 2010-02-16 04:03:18 -0500 | [diff] [blame] | 61 | /** |
| 62 | * I/O write barrier |
| 63 | * |
| 64 | * Ensure ordering of I/O space writes. This will make sure that writes |
| 65 | * following the barrier will arrive after all previous writes. |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 66 | */ |
Mike Frysinger | cfbf167 | 2010-02-16 04:03:18 -0500 | [diff] [blame] | 67 | #define mmiowb() do { SSYNC(); wmb(); } while (0) |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 68 | |
Mike Frysinger | cfbf167 | 2010-02-16 04:03:18 -0500 | [diff] [blame] | 69 | #include <asm-generic/io.h> |
Bryan Wu | 1394f03 | 2007-05-06 14:50:22 -0700 | [diff] [blame] | 70 | |
| 71 | #endif |