+++ /dev/null
-/*
- * linux/arch/m32r/platforms/usrv/io.c
- *
- * Typical I/O routines for uServer board.
- *
- * Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
- * Hitoshi Yamamoto, Takeo Takahashi
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file "COPYING" in the main directory of this
- * archive for more details.
- *
- */
-
-#include <asm/m32r.h>
-#include <asm/page.h>
-#include <asm/io.h>
-
-#include <linux/types.h>
-#include "../../../../drivers/pcmcia/m32r_cfc.h"
-
-extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
-extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
-extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
-extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
-#define CFC_IOSTART CFC_IOPORT_BASE
-#define CFC_IOEND (CFC_IOSTART + (M32R_PCC_MAPSIZE * M32R_MAX_PCC) - 1)
-
-#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
-#define UART0_REGSTART 0x04c20000
-#define UART1_REGSTART 0x04c20100
-#define UART_IOMAP_SIZE 8
-#define UART0_IOSTART 0x3f8
-#define UART0_IOEND (UART0_IOSTART + UART_IOMAP_SIZE - 1)
-#define UART1_IOSTART 0x2f8
-#define UART1_IOEND (UART1_IOSTART + UART_IOMAP_SIZE - 1)
-#endif /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */
-
-#define PORT2ADDR(port) _port2addr(port)
-
-static inline void *_port2addr(unsigned long port)
-{
-#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
- if (port >= UART0_IOSTART && port <= UART0_IOEND)
- port = ((port - UART0_IOSTART) << 1) + UART0_REGSTART;
- else if (port >= UART1_IOSTART && port <= UART1_IOEND)
- port = ((port - UART1_IOSTART) << 1) + UART1_REGSTART;
-#endif /* CONFIG_SERIAL_8250 || CONFIG_SERIAL_8250_MODULE */
- return (void *)(port | (NONCACHE_OFFSET));
-}
-
-static inline void delay(void)
-{
- __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
-}
-
-unsigned char _inb(unsigned long port)
-{
- if (port >= CFC_IOSTART && port <= CFC_IOEND) {
- unsigned char b;
- pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
- return b;
- } else
- return *(volatile unsigned char *)PORT2ADDR(port);
-}
-
-unsigned short _inw(unsigned long port)
-{
- if (port >= CFC_IOSTART && port <= CFC_IOEND) {
- unsigned short w;
- pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
- return w;
- } else
- return *(volatile unsigned short *)PORT2ADDR(port);
-}
-
-unsigned long _inl(unsigned long port)
-{
- if (port >= CFC_IOSTART && port <= CFC_IOEND) {
- unsigned long l;
- pcc_ioread_word(0, port, &l, sizeof(l), 1, 0);
- return l;
- } else
- return *(volatile unsigned long *)PORT2ADDR(port);
-}
-
-unsigned char _inb_p(unsigned long port)
-{
- unsigned char v = _inb(port);
- delay();
- return v;
-}
-
-unsigned short _inw_p(unsigned long port)
-{
- unsigned short v = _inw(port);
- delay();
- return v;
-}
-
-unsigned long _inl_p(unsigned long port)
-{
- unsigned long v = _inl(port);
- delay();
- return v;
-}
-
-void _outb(unsigned char b, unsigned long port)
-{
- if (port >= CFC_IOSTART && port <= CFC_IOEND)
- pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
- else
- *(volatile unsigned char *)PORT2ADDR(port) = b;
-}
-
-void _outw(unsigned short w, unsigned long port)
-{
- if (port >= CFC_IOSTART && port <= CFC_IOEND)
- pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
- else
- *(volatile unsigned short *)PORT2ADDR(port) = w;
-}
-
-void _outl(unsigned long l, unsigned long port)
-{
- if (port >= CFC_IOSTART && port <= CFC_IOEND)
- pcc_iowrite_word(0, port, &l, sizeof(l), 1, 0);
- else
- *(volatile unsigned long *)PORT2ADDR(port) = l;
-}
-
-void _outb_p(unsigned char b, unsigned long port)
-{
- _outb(b, port);
- delay();
-}
-
-void _outw_p(unsigned short w, unsigned long port)
-{
- _outw(w, port);
- delay();
-}
-
-void _outl_p(unsigned long l, unsigned long port)
-{
- _outl(l, port);
- delay();
-}
-
-void _insb(unsigned int port, void * addr, unsigned long count)
-{
- if (port >= CFC_IOSTART && port <= CFC_IOEND)
- pcc_ioread_byte(0, port, addr, sizeof(unsigned char), count, 1);
- 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 >= CFC_IOSTART && port <= CFC_IOEND)
- pcc_ioread_word(0, port, addr, sizeof(unsigned short), count,
- 1);
- 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 >= CFC_IOSTART && port <= CFC_IOEND)
- pcc_iowrite_byte(0, port, (void *)addr, sizeof(unsigned char),
- count, 1);
- 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 >= CFC_IOSTART && port <= CFC_IOEND)
- pcc_iowrite_word(0, port, (void *)addr, sizeof(unsigned short),
- count, 1);
- 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++;
-}
projects / linux-2.6-microblaze.git / blobdiff