2 * (C) Copyright 2003, Psyent Corporation <www.psyent.com>
3 * Scott McNutt <smcnutt@psyent.com>
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
23 #ifndef __ASM_NIOS_IO_H_
24 #define __ASM_NIOS_IO_H_
28 asm volatile( " pfxio 0 \n"\
31 :"=r"(val) : "r" (addr)); val;})
34 ({unsigned short val;\
35 asm volatile( " pfxio 0 \n"\
38 :"=r"(val) : "r" (addr)); val;})
42 asm volatile( " pfxio 0 \n"\
44 :"=r"(val) : "r" (addr)); val;})
46 #define writeb(addr,val)\
47 asm volatile ( " fill8 %%r0, %1 \n"\
48 " st8d [%0], %%r0 \n"\
49 : : "r" (addr), "r" (val) : "r0")
51 #define writew(addr,val)\
52 asm volatile ( " fill16 %%r0, %1 \n"\
53 " st16d [%0], %%r0 \n"\
54 : : "r" (addr), "r" (val) : "r0")
56 #define writel(addr,val)\
57 asm volatile ( " st [%0], %1 \n"\
58 : : "r" (addr), "r" (val))
60 #define inb(addr) readb(addr)
61 #define inw(addr) readw(addr)
62 #define inl(addr) readl(addr)
63 #define outb(val,addr) writeb(addr,val)
64 #define outw(val,addr) writew(addr,val)
65 #define outl(val,addr) writel(addr,val)
67 static inline void insb (unsigned long port, void *dst, unsigned long count)
69 unsigned char *p = dst;
70 while (count--) *p++ = inb (port);
72 static inline void insw (unsigned long port, void *dst, unsigned long count)
74 unsigned short *p = dst;
75 while (count--) *p++ = inw (port);
77 static inline void insl (unsigned long port, void *dst, unsigned long count)
79 unsigned long *p = dst;
80 while (count--) *p++ = inl (port);
83 static inline void outsb (unsigned long port, const void *src, unsigned long count)
85 const unsigned char *p = src;
86 while (count--) outb (*p++, port);
89 static inline void outsw (unsigned long port, const void *src, unsigned long count)
91 const unsigned short *p = src;
92 while (count--) outw (*p++, port);
94 static inline void outsl (unsigned long port, const void *src, unsigned long count)
96 const unsigned long *p = src;
97 while (count--) outl (*p++, port);
100 static inline void sync(void)
104 #endif /* __ASM_NIOS_IO_H_ */