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/*

 * Architecture specific parts of the Floppy driver

 *

 * 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.

 *

 * Copyright (C) 1995

 */

#ifndef __ASM_ALPHA_FLOPPY_H

#define __ASM_ALPHA_FLOPPY_H

#include <linux/config.h>

#define fd_inb(port)                    inb_p(port)

#define fd_outb(port,value)             outb_p(port,value)

#define fd_enable_dma()         enable_dma(FLOPPY_DMA)

#define fd_disable_dma()        disable_dma(FLOPPY_DMA)

#define fd_request_dma()        request_dma(FLOPPY_DMA,"floppy")

#define fd_free_dma()           free_dma(FLOPPY_DMA)

#define fd_clear_dma_ff()       clear_dma_ff(FLOPPY_DMA)

#define fd_set_dma_mode(mode)   set_dma_mode(FLOPPY_DMA,mode)

#define fd_set_dma_addr(addr)   set_dma_addr(FLOPPY_DMA,addr)

#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count)

#define fd_enable_irq()         enable_irq(FLOPPY_IRQ)

#define fd_disable_irq()        disable_irq(FLOPPY_IRQ)

#define fd_cacheflush(addr,size) /* nothing */

#define fd_request_irq()        request_irq(FLOPPY_IRQ, floppy_interrupt, \

                                            SA_INTERRUPT|SA_SAMPLE_RANDOM, \

                                            "floppy", NULL)

#define fd_free_irq()           free_irq(FLOPPY_IRQ, NULL);

__inline__ void virtual_dma_init(void)

{

        /* Nothing to do on an Alpha */

}

static int FDC1 = 0x3f0;

static int FDC2 = -1;

/*

 * Again, the CMOS information doesn't work on the alpha..

 */

#define FLOPPY0_TYPE 6

#define FLOPPY1_TYPE 0

#define N_FDC 2

#define N_DRIVE 8

/*

 * Most Alphas have no problems with floppy DMA crossing 64k borders. Sigh...

 */

#if defined(CONFIG_ALPHA_XL) || defined(CONFIG_ALPHA_RUFFIAN)

#define CROSS_64KB(a,s) \

    ((unsigned long)(a)/0x10000 != ((unsigned long)(a) + (s) - 1) / 0x10000)

#else /* XL || RUFFIAN */

#define CROSS_64KB(a,s) (0)

#endif /* XL || RUFFIAN */

#endif /* __ASM_ALPHA_FLOPPY_H */