/* * 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. * * Access the floppy hardware on PC style hardware * * Copyright (C) 1996, 1997, 1998 by Ralf Baechle */#include <linux/delay.h>#include <linux/init.h>#include <linux/ioport.h>#include <linux/sched.h>#include <linux/kernel.h>#include <linux/linkage.h>#include <linux/types.h>#include <linux/mm.h>#include <asm/bootinfo.h>#include <asm/cachectl.h>#include <asm/dma.h>#include <asm/floppy.h>#include <asm/keyboard.h>#include <asm/io.h>#include <asm/irq.h>#include <asm/mc146818rtc.h>#include <asm/pgtable.h>/* * How to access the FDC's registers. */static unsigned char std_fd_inb(unsigned int port){	return inb_p(port);}static void std_fd_outb(unsigned char value, unsigned int port){	outb_p(value, port);}/* * How to access the floppy DMA functions. */static void std_fd_enable_dma(int channel){	enable_dma(channel);}static void std_fd_disable_dma(int channel){	disable_dma(channel);}static int std_fd_request_dma(int channel){	return request_dma(channel, "floppy");}static void std_fd_free_dma(int channel){	free_dma(channel);}static void std_fd_clear_dma_ff(int channel){	clear_dma_ff(channel);}static void std_fd_set_dma_mode(int channel, char mode){	set_dma_mode(channel, mode);}static void std_fd_set_dma_addr(int channel, unsigned int addr){	set_dma_addr(channel, addr);}static void std_fd_set_dma_count(int channel, unsigned int count){	set_dma_count(channel, count);}static int std_fd_get_dma_residue(int channel){	return get_dma_residue(channel);}static void std_fd_enable_irq(int irq){	enable_irq(irq);}static void std_fd_disable_irq(int irq){	disable_irq(irq);}static unsigned long std_fd_getfdaddr1(void){	return 0x3f0;}static unsigned long std_fd_dma_mem_alloc(unsigned long size){	unsigned long mem;	mem = __get_dma_pages(GFP_KERNEL,get_order(size));	return mem;}static void std_fd_dma_mem_free(unsigned long addr, unsigned long size){	free_pages(addr, get_order(size));}static unsigned long std_fd_drive_type(unsigned long n){	if (n == 0)		return 4;	/* 3,5", 1.44mb */	return 0;}struct fd_ops std_fd_ops = {	/*	 * How to access the floppy controller's ports	 */	std_fd_inb,	std_fd_outb,	/*	 * How to access the floppy DMA functions.	 */	std_fd_enable_dma,	std_fd_disable_dma,	std_fd_request_dma,	std_fd_free_dma,	std_fd_clear_dma_ff,	std_fd_set_dma_mode,	std_fd_set_dma_addr,	std_fd_set_dma_count,	std_fd_get_dma_residue,	std_fd_enable_irq,	std_fd_disable_irq,        std_fd_getfdaddr1,        std_fd_dma_mem_alloc,        std_fd_dma_mem_free,	std_fd_drive_type};