| 1 | /* |
| 2 | * linux/include/asm-m68k/cf_raw_io.h |
| 3 | * |
| 4 | * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved. |
| 5 | * 09/30/08 JKM: split Coldfire pieces into separate file |
| 6 | */ |
| 7 | #ifndef __CF_RAW_IO__ |
| 8 | #define __CF_RAW_IO__ |
| 9 | |
| 10 | #ifdef __KERNEL__ |
| 11 | |
| 12 | #include <asm/types.h> |
| 13 | |
| 14 | /* Values for nocacheflag and cmode */ |
| 15 | #define IOMAP_FULL_CACHING 0 |
| 16 | #define IOMAP_NOCACHE_SER 1 |
| 17 | #define IOMAP_NOCACHE_NONSER 2 |
| 18 | #define IOMAP_WRITETHROUGH 3 |
| 19 | |
| 20 | extern void iounmap(void __iomem *addr); |
| 21 | |
| 22 | extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size, |
| 23 | int cacheflag); |
| 24 | extern void __iounmap(void *addr, unsigned long size); |
| 25 | |
| 26 | |
| 27 | /* ++roman: The assignments to temp. vars avoid that gcc sometimes generates |
| 28 | * two accesses to memory, which may be undesirable for some devices. |
| 29 | */ |
| 30 | #define in_8(addr) \ |
| 31 | ({ u8 __v = (*(__force volatile u8 *) (addr)); __v; }) |
| 32 | #define in_be16(addr) \ |
| 33 | ({ u16 __v = (*(__force volatile u16 *) (addr)); __v; }) |
| 34 | #define in_be32(addr) \ |
| 35 | ({ u32 __v = (*(__force volatile u32 *) (addr)); __v; }) |
| 36 | #define in_le16(addr) \ |
| 37 | ({ u16 __v = le16_to_cpu(*(__force volatile __le16 *) (addr)); __v; }) |
| 38 | #define in_le32(addr) \ |
| 39 | ({ u32 __v = le32_to_cpu(*(__force volatile __le32 *) (addr)); __v; }) |
| 40 | |
| 41 | #define out_8(addr,b) (void)((*(__force volatile u8 *) (addr)) = (b)) |
| 42 | #define out_be16(addr,w) (void)((*(__force volatile u16 *) (addr)) = (w)) |
| 43 | #define out_be32(addr,l) (void)((*(__force volatile u32 *) (addr)) = (l)) |
| 44 | #define out_le16(addr,w) (void)((*(__force volatile __le16 *) (addr)) = cpu_to_le16(w)) |
| 45 | #define out_le32(addr,l) (void)((*(__force volatile __le32 *) (addr)) = cpu_to_le32(l)) |
| 46 | |
| 47 | |
| 48 | #ifdef CONFIG_PCI |
| 49 | /* pci */ |
| 50 | unsigned char pci_inb(long addr); |
| 51 | unsigned short pci_inw(long addr); |
| 52 | unsigned long pci_inl(long addr); |
| 53 | |
| 54 | void pci_outb(unsigned char val, long addr); |
| 55 | void pci_outw(unsigned short val, long addr); |
| 56 | void pci_outl(unsigned long val, long addr); |
| 57 | |
| 58 | void pci_insb(volatile unsigned char *addr, |
| 59 | unsigned char *buf, int len); |
| 60 | void pci_insw(volatile unsigned short *addr, |
| 61 | unsigned short *buf, int len); |
| 62 | void pci_insl(volatile unsigned long *addr, |
| 63 | unsigned long *buf, int len); |
| 64 | |
| 65 | void pci_outsb(volatile unsigned char *addr, |
| 66 | const unsigned char *buf, int len); |
| 67 | void pci_outsw(volatile unsigned short *addr, |
| 68 | const unsigned short *buf, int len); |
| 69 | void pci_outsl(volatile unsigned long *addr, |
| 70 | const unsigned long *buf, int len); |
| 71 | |
| 72 | unsigned short pci_raw_inw(long addr); |
| 73 | unsigned long pci_raw_inl(long addr); |
| 74 | void pci_raw_outw(unsigned short val, long addr); |
| 75 | void pci_raw_outl(unsigned long val, long addr); |
| 76 | |
| 77 | #define raw_inb(port) pci_inb((long)((volatile unsigned char *)(port))) |
| 78 | #define raw_inw(port) pci_raw_inw((long)((volatile unsigned short *)(port))) |
| 79 | #define raw_inl(port) pci_raw_inl((long)((volatile unsigned long *)(port))) |
| 80 | |
| 81 | #define raw_outb(val, port) \ |
| 82 | pci_outb((val), (long)((volatile unsigned char *)(port))) |
| 83 | #define raw_outw(val, port) \ |
| 84 | pci_raw_outw((val), (long)((volatile unsigned short *)(port))) |
| 85 | #define raw_outl(val, port) \ |
| 86 | pci_raw_outl((val), (long)((volatile unsigned long *)(port))) |
| 87 | |
| 88 | #define swap_inw(port) pci_inw((long)((volatile unsigned short *)(port))) |
| 89 | #define swap_outw(val, port) \ |
| 90 | pci_outw((val), (long)((volatile unsigned short *)(port))) |
| 91 | |
| 92 | #else |
| 93 | /* non-pci */ |
| 94 | #define raw_inb in_8 |
| 95 | #define raw_inw in_be16 |
| 96 | #define raw_inl in_be32 |
| 97 | |
| 98 | #define raw_outb(val,port) out_8((port),(val)) |
| 99 | #define raw_outw(val,port) out_be16((port),(val)) |
| 100 | #define raw_outl(val,port) out_be32((port),(val)) |
| 101 | |
| 102 | #define swap_inw(port) in_le16((port)) |
| 103 | #define swap_outw(val,port) out_le16((port),(val)) |
| 104 | #endif |
| 105 | |
| 106 | static inline void raw_insb(volatile u8 __iomem *port, u8 *buf, unsigned int len) |
| 107 | { |
| 108 | unsigned int i; |
| 109 | |
| 110 | for (i = 0; i < len; i++) |
| 111 | *buf++ = in_8(port); |
| 112 | } |
| 113 | |
| 114 | static inline void raw_outsb(volatile u8 __iomem *port, const u8 *buf, |
| 115 | unsigned int len) |
| 116 | { |
| 117 | unsigned int i; |
| 118 | |
| 119 | for (i = 0; i < len; i++) |
| 120 | out_8(port, *buf++); |
| 121 | } |
| 122 | |
| 123 | static inline void raw_insw(volatile u16 *port, u16 *buf, unsigned int nr) |
| 124 | { |
| 125 | unsigned int i; |
| 126 | |
| 127 | for (i = 0; i < nr; i++) |
| 128 | *buf++ = raw_inw(port); |
| 129 | } |
| 130 | |
| 131 | static inline void raw_outsw(volatile u16 *port, const u16 *buf, |
| 132 | unsigned int nr) |
| 133 | { |
| 134 | unsigned int i; |
| 135 | |
| 136 | for (i = 0; i < nr; i++, buf++) |
| 137 | raw_outw(*buf, port); |
| 138 | } |
| 139 | |
| 140 | static inline void raw_insl(volatile u32 *port, u32 *buf, unsigned int nr) |
| 141 | { |
| 142 | unsigned int i; |
| 143 | |
| 144 | for (i = 0; i < nr; i++) |
| 145 | *buf++ = raw_inl(port); |
| 146 | } |
| 147 | |
| 148 | static inline void raw_outsl(volatile u32 *port, const u32 *buf, |
| 149 | unsigned int nr) |
| 150 | { |
| 151 | unsigned int i; |
| 152 | |
| 153 | for (i = 0; i < nr; i++, buf++) |
| 154 | raw_outl(*buf, port); |
| 155 | } |
| 156 | |
| 157 | static inline void raw_insw_swapw(volatile u16 *port, u16 *buf, |
| 158 | unsigned int nr) |
| 159 | { |
| 160 | #ifdef UNDEF |
| 161 | unsigned int i; |
| 162 | |
| 163 | for (i = 0; i < nr; i++) |
| 164 | *buf++ = in_le16(port); |
| 165 | #endif |
| 166 | } |
| 167 | |
| 168 | static inline void raw_outsw_swapw(volatile u16 __iomem *port, const u16 *buf, |
| 169 | unsigned int nr) |
| 170 | { |
| 171 | #ifdef UNDEF |
| 172 | unsigned int i; |
| 173 | |
| 174 | for (i = 0; i < nr; i++, buf++) |
| 175 | out_le16(port, *buf); |
| 176 | #endif |
| 177 | } |
| 178 | |
| 179 | #endif /* __KERNEL__ */ |
| 180 | |
| 181 | #endif /* __CF_RAW_IO__ */ |
| 182 | |
