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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 54 | pj | 1 | #include <stdint.h> |
| 2 | |||
| 3 | #ifndef __alpha__ |
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| 4 | |||
| 5 | #define v_readb(addr) (*(volatile uint8_t *) (MMIO_POINTER+(addr))) |
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| 6 | #define v_readw(addr) (*(volatile uint16_t *) (MMIO_POINTER+(addr))) |
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| 7 | #define v_readl(addr) (*(volatile uint32_t *) (MMIO_POINTER+(addr))) |
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| 8 | |||
| 9 | #define v_writeb(b,addr) (*(volatile uint8_t *) (MMIO_POINTER+(addr)) = (b)) |
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| 10 | #define v_writew(b,addr) (*(volatile uint16_t *) (MMIO_POINTER+(addr)) = (b)) |
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| 11 | #define v_writel(b,addr) (*(volatile uint32_t *) (MMIO_POINTER+(addr)) = (b)) |
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| 12 | |||
| 13 | #else |
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| 14 | |||
| 15 | #define vip volatile int * |
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| 16 | #define vuip volatile unsigned int * |
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| 17 | #define vulp volatile unsigned long * |
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| 18 | |||
| 19 | #define mb() \ |
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| 20 | __asm__ __volatile__("mb": : :"memory") |
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| 21 | |||
| 22 | #define __kernel_extbl(val, shift) \ |
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| 23 | ({ unsigned long __kir; \ |
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| 24 | __asm__("extbl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val)); \ |
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| 25 | __kir; }) |
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| 26 | #define __kernel_extwl(val, shift) \ |
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| 27 | ({ unsigned long __kir; \ |
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| 28 | __asm__("extwl %2,%1,%0" : "=r"(__kir) : "rI"(shift), "r"(val)); \ |
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| 29 | __kir; }) |
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| 30 | |||
| 31 | static inline uint8_t v_readb(unsigned long addr) |
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| 32 | { |
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| 33 | unsigned long result; |
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| 34 | |||
| 35 | result = *(vip) ((addr << 5) + SPARSE_MMIO + 0x00); |
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| 36 | return __kernel_extbl(result, addr & 3); |
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| 37 | } |
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| 38 | |||
| 39 | static inline uint16_t v_readw(unsigned long addr) |
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| 40 | { |
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| 41 | unsigned long result; |
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| 42 | |||
| 43 | result = *(vip) ((addr << 5) + SPARSE_MMIO + 0x08); |
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| 44 | return __kernel_extwl(result, addr & 3); |
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| 45 | } |
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| 46 | |||
| 47 | static inline uint32_t v_readl(unsigned long addr) |
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| 48 | { |
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| 49 | return *(vuip) ((addr << 5) + SPARSE_MMIO + 0x18); |
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| 50 | } |
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| 51 | |||
| 52 | static inline void v_writeb(uint8_t b, unsigned long addr) |
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| 53 | { |
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| 54 | *(vuip) ((addr << 5) + SPARSE_MMIO + 0x00) = b * 0x01010101; |
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| 55 | mb(); |
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| 56 | } |
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| 57 | |||
| 58 | static inline void v_writew(uint16_t b, unsigned long addr) |
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| 59 | { |
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| 60 | *(vuip) ((addr << 5) + SPARSE_MMIO + 0x08) = b * 0x00010001; |
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| 61 | mb(); |
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| 62 | } |
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| 63 | |||
| 64 | static inline void v_writel(uint32_t b, unsigned long addr) |
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| 65 | { |
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| 66 | *(vuip) ((addr << 5) + SPARSE_MMIO + 0x18) = b; |
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| 67 | mb(); |
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| 68 | } |
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| 69 | |||
| 70 | #endif /* __alpha__ */ |