/arch/m32r/kernel/io_oaks32r.c
https://bitbucket.org/evzijst/gittest · C · 251 lines · 195 code · 45 blank · 11 comment · 38 complexity · 8c479329d58aabbe0544c3d5007a60ff MD5 · raw file
- /*
- * linux/arch/m32r/kernel/io_oaks32r.c
- *
- * Typical I/O routines for OAKS32R board.
- *
- * Copyright (c) 2001-2004 Hiroyuki Kondo, Hirokazu Takata,
- * Hitoshi Yamamoto, Mamoru Sakugawa
- */
- #include <linux/config.h>
- #include <asm/m32r.h>
- #include <asm/page.h>
- #include <asm/io.h>
- #define PORT2ADDR(port) _port2addr(port)
- static inline void *_port2addr(unsigned long port)
- {
- return (void *)(port + NONCACHE_OFFSET);
- }
- static inline void *_port2addr_ne(unsigned long port)
- {
- return (void *)((port<<1) + NONCACHE_OFFSET + 0x02000000);
- }
- static inline void delay(void)
- {
- __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
- }
- /*
- * NIC I/O function
- */
- #define PORT2ADDR_NE(port) _port2addr_ne(port)
- static inline unsigned char _ne_inb(void *portp)
- {
- return *(volatile unsigned char *)(portp+1);
- }
- static inline unsigned short _ne_inw(void *portp)
- {
- unsigned short tmp;
- tmp = *(unsigned short *)(portp) & 0xff;
- tmp |= *(unsigned short *)(portp+2) << 8;
- return tmp;
- }
- static inline void _ne_insb(void *portp, void *addr, unsigned long count)
- {
- unsigned char *buf = addr;
- while (count--)
- *buf++ = *(volatile unsigned char *)(portp+1);
- }
- static inline void _ne_outb(unsigned char b, void *portp)
- {
- *(volatile unsigned char *)(portp+1) = b;
- }
- static inline void _ne_outw(unsigned short w, void *portp)
- {
- *(volatile unsigned short *)portp = (w >> 8);
- *(volatile unsigned short *)(portp+2) = (w & 0xff);
- }
- unsigned char _inb(unsigned long port)
- {
- if (port >= 0x300 && port < 0x320)
- return _ne_inb(PORT2ADDR_NE(port));
- return *(volatile unsigned char *)PORT2ADDR(port);
- }
- unsigned short _inw(unsigned long port)
- {
- if (port >= 0x300 && port < 0x320)
- return _ne_inw(PORT2ADDR_NE(port));
- return *(volatile unsigned short *)PORT2ADDR(port);
- }
- unsigned long _inl(unsigned long port)
- {
- return *(volatile unsigned long *)PORT2ADDR(port);
- }
- unsigned char _inb_p(unsigned long port)
- {
- unsigned char v;
- if (port >= 0x300 && port < 0x320)
- v = _ne_inb(PORT2ADDR_NE(port));
- else
- v = *(volatile unsigned char *)PORT2ADDR(port);
- delay();
- return (v);
- }
- unsigned short _inw_p(unsigned long port)
- {
- unsigned short v;
- if (port >= 0x300 && port < 0x320)
- v = _ne_inw(PORT2ADDR_NE(port));
- else
- v = *(volatile unsigned short *)PORT2ADDR(port);
- delay();
- return (v);
- }
- unsigned long _inl_p(unsigned long port)
- {
- unsigned long v;
- v = *(volatile unsigned long *)PORT2ADDR(port);
- delay();
- return (v);
- }
- void _outb(unsigned char b, unsigned long port)
- {
- if (port >= 0x300 && port < 0x320)
- _ne_outb(b, PORT2ADDR_NE(port));
- else
- *(volatile unsigned char *)PORT2ADDR(port) = b;
- }
- void _outw(unsigned short w, unsigned long port)
- {
- if (port >= 0x300 && port < 0x320)
- _ne_outw(w, PORT2ADDR_NE(port));
- else
- *(volatile unsigned short *)PORT2ADDR(port) = w;
- }
- void _outl(unsigned long l, unsigned long port)
- {
- *(volatile unsigned long *)PORT2ADDR(port) = l;
- }
- void _outb_p(unsigned char b, unsigned long port)
- {
- if (port >= 0x300 && port < 0x320)
- _ne_outb(b, PORT2ADDR_NE(port));
- else
- *(volatile unsigned char *)PORT2ADDR(port) = b;
- delay();
- }
- void _outw_p(unsigned short w, unsigned long port)
- {
- if (port >= 0x300 && port < 0x320)
- _ne_outw(w, PORT2ADDR_NE(port));
- else
- *(volatile unsigned short *)PORT2ADDR(port) = w;
- delay();
- }
- void _outl_p(unsigned long l, unsigned long port)
- {
- *(volatile unsigned long *)PORT2ADDR(port) = l;
- delay();
- }
- void _insb(unsigned int port, void *addr, unsigned long count)
- {
- if (port >= 0x300 && port < 0x320)
- _ne_insb(PORT2ADDR_NE(port), addr, count);
- else {
- unsigned char *buf = addr;
- unsigned char *portp = PORT2ADDR(port);
- while (count--)
- *buf++ = *(volatile unsigned char *)portp;
- }
- }
- void _insw(unsigned int port, void *addr, unsigned long count)
- {
- unsigned short *buf = addr;
- unsigned short *portp;
- if (port >= 0x300 && port < 0x320) {
- portp = PORT2ADDR_NE(port);
- while (count--)
- *buf++ = _ne_inw(portp);
- } else {
- portp = PORT2ADDR(port);
- while (count--)
- *buf++ = *(volatile unsigned short *)portp;
- }
- }
- void _insl(unsigned int port, void *addr, unsigned long count)
- {
- unsigned long *buf = addr;
- unsigned long *portp;
- portp = PORT2ADDR(port);
- while (count--)
- *buf++ = *(volatile unsigned long *)portp;
- }
- void _outsb(unsigned int port, const void *addr, unsigned long count)
- {
- const unsigned char *buf = addr;
- unsigned char *portp;
- if (port >= 0x300 && port < 0x320) {
- portp = PORT2ADDR_NE(port);
- while (count--)
- _ne_outb(*buf++, portp);
- } else {
- portp = PORT2ADDR(port);
- while (count--)
- *(volatile unsigned char *)portp = *buf++;
- }
- }
- void _outsw(unsigned int port, const void *addr, unsigned long count)
- {
- const unsigned short *buf = addr;
- unsigned short *portp;
- if (port >= 0x300 && port < 0x320) {
- portp = PORT2ADDR_NE(port);
- while (count--)
- _ne_outw(*buf++, portp);
- } else {
- portp = PORT2ADDR(port);
- while (count--)
- *(volatile unsigned short *)portp = *buf++;
- }
- }
- void _outsl(unsigned int port, const void *addr, unsigned long count)
- {
- const unsigned long *buf = addr;
- unsigned char *portp;
- portp = PORT2ADDR(port);
- while (count--)
- *(volatile unsigned long *)portp = *buf++;
- }