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d06a5f7e WD |
1 | /* |
2 | * (C) Copyright 2003, Psyent Corporation <www.psyent.com> | |
3 | * Scott McNutt <smcnutt@psyent.com> | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 of | |
11 | * the License, or (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | #ifndef __ASM_NIOS_IO_H_ | |
24 | #define __ASM_NIOS_IO_H_ | |
25 | ||
812711ce HS |
26 | #define __raw_writeb(v,a) (*(volatile unsigned char *)(a) = (v)) |
27 | #define __raw_writew(v,a) (*(volatile unsigned short *)(a) = (v)) | |
28 | #define __raw_writel(v,a) (*(volatile unsigned int *)(a) = (v)) | |
29 | ||
30 | #define __raw_readb(a) (*(volatile unsigned char *)(a)) | |
31 | #define __raw_readw(a) (*(volatile unsigned short *)(a)) | |
32 | #define __raw_readl(a) (*(volatile unsigned int *)(a)) | |
33 | ||
d06a5f7e WD |
34 | #define readb(addr)\ |
35 | ({unsigned char val;\ | |
36 | asm volatile( " pfxio 0 \n"\ | |
37 | " ld %0, [%1] \n"\ | |
38 | " ext8d %0, %1 \n"\ | |
39 | :"=r"(val) : "r" (addr)); val;}) | |
40 | ||
41 | #define readw(addr)\ | |
42 | ({unsigned short val;\ | |
43 | asm volatile( " pfxio 0 \n"\ | |
44 | " ld %0, [%1] \n"\ | |
45 | " ext16d %0, %1 \n"\ | |
46 | :"=r"(val) : "r" (addr)); val;}) | |
47 | ||
48 | #define readl(addr)\ | |
49 | ({unsigned long val;\ | |
50 | asm volatile( " pfxio 0 \n"\ | |
51 | " ld %0, [%1] \n"\ | |
52 | :"=r"(val) : "r" (addr)); val;}) | |
53 | ||
54 | #define writeb(addr,val)\ | |
55 | asm volatile ( " fill8 %%r0, %1 \n"\ | |
56 | " st8d [%0], %%r0 \n"\ | |
57 | : : "r" (addr), "r" (val) : "r0") | |
58 | ||
59 | #define writew(addr,val)\ | |
60 | asm volatile ( " fill16 %%r0, %1 \n"\ | |
61 | " st16d [%0], %%r0 \n"\ | |
62 | : : "r" (addr), "r" (val) : "r0") | |
63 | ||
64 | #define writel(addr,val)\ | |
65 | asm volatile ( " st [%0], %1 \n"\ | |
66 | : : "r" (addr), "r" (val)) | |
67 | ||
68 | #define inb(addr) readb(addr) | |
69 | #define inw(addr) readw(addr) | |
70 | #define inl(addr) readl(addr) | |
71 | #define outb(val,addr) writeb(addr,val) | |
72 | #define outw(val,addr) writew(addr,val) | |
73 | #define outl(val,addr) writel(addr,val) | |
74 | ||
75 | static inline void insb (unsigned long port, void *dst, unsigned long count) | |
76 | { | |
77 | unsigned char *p = dst; | |
78 | while (count--) *p++ = inb (port); | |
79 | } | |
80 | static inline void insw (unsigned long port, void *dst, unsigned long count) | |
81 | { | |
82 | unsigned short *p = dst; | |
83 | while (count--) *p++ = inw (port); | |
84 | } | |
85 | static inline void insl (unsigned long port, void *dst, unsigned long count) | |
86 | { | |
87 | unsigned long *p = dst; | |
88 | while (count--) *p++ = inl (port); | |
89 | } | |
90 | ||
91 | static inline void outsb (unsigned long port, const void *src, unsigned long count) | |
92 | { | |
93 | const unsigned char *p = src; | |
94 | while (count--) outb (*p++, port); | |
95 | } | |
96 | ||
97 | static inline void outsw (unsigned long port, const void *src, unsigned long count) | |
98 | { | |
99 | const unsigned short *p = src; | |
100 | while (count--) outw (*p++, port); | |
101 | } | |
102 | static inline void outsl (unsigned long port, const void *src, unsigned long count) | |
103 | { | |
104 | const unsigned long *p = src; | |
105 | while (count--) outl (*p++, port); | |
106 | } | |
107 | ||
3a197b2f HW |
108 | static inline void sync(void) |
109 | { | |
110 | } | |
111 | ||
d06a5f7e | 112 | #endif /* __ASM_NIOS_IO_H_ */ |