1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
158 lines
4.1 KiB
C
158 lines
4.1 KiB
C
/*
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* $Id: io.c,v 1.6 2004/03/16 00:07:50 lethal Exp $
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* Copyright (C) 2000 YAEGASHI Takeshi
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* Typical I/O routines for HD64461 system.
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*/
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#include <linux/config.h>
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#include <asm/io.h>
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#include <asm/hd64461/hd64461.h>
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#define MEM_BASE (CONFIG_HD64461_IOBASE - HD64461_STBCR)
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static __inline__ unsigned long PORT2ADDR(unsigned long port)
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{
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/* 16550A: HD64461 internal */
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if (0x3f8<=port && port<=0x3ff)
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return CONFIG_HD64461_IOBASE + 0x8000 + ((port-0x3f8)<<1);
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if (0x2f8<=port && port<=0x2ff)
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return CONFIG_HD64461_IOBASE + 0x7000 + ((port-0x2f8)<<1);
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#ifdef CONFIG_HD64461_ENABLER
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/* NE2000: HD64461 PCMCIA channel 0 (I/O) */
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if (0x300<=port && port<=0x31f)
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return 0xba000000 + port;
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/* ide0: HD64461 PCMCIA channel 1 (memory) */
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/* On HP690, CF in slot 1 is configured as a memory card
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device. See CF+ and CompactFlash Specification for the
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detail of CF's memory mapped addressing. */
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if (0x1f0<=port && port<=0x1f7) return 0xb5000000 + port;
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if (port == 0x3f6) return 0xb50001fe;
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if (port == 0x3f7) return 0xb50001ff;
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/* ide1 */
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if (0x170<=port && port<=0x177) return 0xba000000 + port;
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if (port == 0x376) return 0xba000376;
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if (port == 0x377) return 0xba000377;
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#endif
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/* ??? */
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if (port < 0xf000) return 0xa0000000 + port;
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/* PCMCIA channel 0, I/O (0xba000000) */
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if (port < 0x10000) return 0xba000000 + port - 0xf000;
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/* HD64461 internal devices (0xb0000000) */
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if (port < 0x20000) return CONFIG_HD64461_IOBASE + port - 0x10000;
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/* PCMCIA channel 0, I/O (0xba000000) */
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if (port < 0x30000) return 0xba000000 + port - 0x20000;
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/* PCMCIA channel 1, memory (0xb5000000) */
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if (port < 0x40000) return 0xb5000000 + port - 0x30000;
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/* Whole physical address space (0xa0000000) */
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return 0xa0000000 + (port & 0x1fffffff);
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}
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static inline void delay(void)
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{
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ctrl_inw(0xa0000000);
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}
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unsigned char hd64461_inb(unsigned long port)
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{
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return *(volatile unsigned char*)PORT2ADDR(port);
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}
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unsigned char hd64461_inb_p(unsigned long port)
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{
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unsigned long v = *(volatile unsigned char*)PORT2ADDR(port);
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delay();
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return v;
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}
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unsigned short hd64461_inw(unsigned long port)
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{
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return *(volatile unsigned short*)PORT2ADDR(port);
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}
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unsigned int hd64461_inl(unsigned long port)
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{
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return *(volatile unsigned long*)PORT2ADDR(port);
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}
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void hd64461_outb(unsigned char b, unsigned long port)
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{
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*(volatile unsigned char*)PORT2ADDR(port) = b;
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}
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void hd64461_outb_p(unsigned char b, unsigned long port)
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{
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*(volatile unsigned char*)PORT2ADDR(port) = b;
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delay();
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}
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void hd64461_outw(unsigned short b, unsigned long port)
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{
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*(volatile unsigned short*)PORT2ADDR(port) = b;
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}
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void hd64461_outl(unsigned int b, unsigned long port)
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{
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*(volatile unsigned long*)PORT2ADDR(port) = b;
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}
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void hd64461_insb(unsigned long port, void *buffer, unsigned long count)
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{
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volatile unsigned char* addr=(volatile unsigned char*)PORT2ADDR(port);
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unsigned char *buf=buffer;
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while(count--) *buf++=*addr;
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}
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void hd64461_insw(unsigned long port, void *buffer, unsigned long count)
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{
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volatile unsigned short* addr=(volatile unsigned short*)PORT2ADDR(port);
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unsigned short *buf=buffer;
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while(count--) *buf++=*addr;
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}
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void hd64461_insl(unsigned long port, void *buffer, unsigned long count)
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{
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volatile unsigned long* addr=(volatile unsigned long*)PORT2ADDR(port);
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unsigned long *buf=buffer;
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while(count--) *buf++=*addr;
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}
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void hd64461_outsb(unsigned long port, const void *buffer, unsigned long count)
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{
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volatile unsigned char* addr=(volatile unsigned char*)PORT2ADDR(port);
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const unsigned char *buf=buffer;
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while(count--) *addr=*buf++;
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}
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void hd64461_outsw(unsigned long port, const void *buffer, unsigned long count)
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{
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volatile unsigned short* addr=(volatile unsigned short*)PORT2ADDR(port);
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const unsigned short *buf=buffer;
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while(count--) *addr=*buf++;
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}
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void hd64461_outsl(unsigned long port, const void *buffer, unsigned long count)
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{
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volatile unsigned long* addr=(volatile unsigned long*)PORT2ADDR(port);
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const unsigned long *buf=buffer;
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while(count--) *addr=*buf++;
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}
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unsigned short hd64461_readw(unsigned long addr)
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{
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return *(volatile unsigned short*)(MEM_BASE+addr);
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}
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void hd64461_writew(unsigned short b, unsigned long addr)
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{
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*(volatile unsigned short*)(MEM_BASE+addr) = b;
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}
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