84 lines
1.7 KiB
C
84 lines
1.7 KiB
C
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/*
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* linux/arch/arm/lib/io-shark.c
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*
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* by Alexander Schulz
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*
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* derived from:
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* linux/arch/arm/lib/io-ebsa.S
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* Copyright (C) 1995, 1996 Russell King
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <asm/io.h>
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void print_warning(void)
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{
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printk(KERN_WARNING "ins?/outs? not implemented on this architecture\n");
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}
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void insl(unsigned int port, void *to, int len)
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{
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print_warning();
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}
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void insb(unsigned int port, void *to, int len)
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{
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print_warning();
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}
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void outsl(unsigned int port, const void *from, int len)
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{
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print_warning();
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}
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void outsb(unsigned int port, const void *from, int len)
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{
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print_warning();
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}
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/* these should be in assembler again */
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/*
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* Purpose: read a block of data from a hardware register to memory.
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* Proto : insw(int from_port, void *to, int len_in_words);
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* Proto : inswb(int from_port, void *to, int len_in_bytes);
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* Notes : increment to
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*/
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void insw(unsigned int port, void *to, int len)
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{
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int i;
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for (i = 0; i < len; i++)
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((unsigned short *) to)[i] = inw(port);
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}
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void inswb(unsigned int port, void *to, int len)
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{
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insw(port, to, len >> 2);
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}
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/*
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* Purpose: write a block of data from memory to a hardware register.
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* Proto : outsw(int to_reg, void *from, int len_in_words);
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* Proto : outswb(int to_reg, void *from, int len_in_bytes);
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* Notes : increments from
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*/
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void outsw(unsigned int port, const void *from, int len)
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{
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int i;
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for (i = 0; i < len; i++)
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outw(((unsigned short *) from)[i], port);
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}
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void outswb(unsigned int port, const void *from, int len)
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{
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outsw(port, from, len >> 2);
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}
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