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1632 |
jcastillo |
/*
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* Architecture specific parts of the Floppy driver
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1995
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*/
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#ifndef __ASM_ALPHA_FLOPPY_H
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#define __ASM_ALPHA_FLOPPY_H
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#include <linux/config.h>
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#define fd_inb(port) inb_p(port)
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#define fd_outb(port,value) outb_p(port,value)
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#define fd_enable_dma() enable_dma(FLOPPY_DMA)
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#define fd_disable_dma() disable_dma(FLOPPY_DMA)
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#define fd_request_dma() request_dma(FLOPPY_DMA,"floppy")
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#define fd_free_dma() free_dma(FLOPPY_DMA)
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#define fd_clear_dma_ff() clear_dma_ff(FLOPPY_DMA)
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#define fd_set_dma_mode(mode) set_dma_mode(FLOPPY_DMA,mode)
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#define fd_set_dma_addr(addr) set_dma_addr(FLOPPY_DMA,addr)
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#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count)
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#define fd_enable_irq() enable_irq(FLOPPY_IRQ)
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#define fd_disable_irq() disable_irq(FLOPPY_IRQ)
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#define fd_cacheflush(addr,size) /* nothing */
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#define fd_request_irq() request_irq(FLOPPY_IRQ, floppy_interrupt, \
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SA_INTERRUPT|SA_SAMPLE_RANDOM, \
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"floppy", NULL)
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#define fd_free_irq() free_irq(FLOPPY_IRQ, NULL);
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__inline__ void virtual_dma_init(void)
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{
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/* Nothing to do on an Alpha */
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}
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static int FDC1 = 0x3f0;
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static int FDC2 = -1;
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/*
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* Again, the CMOS information doesn't work on the alpha..
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*/
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#define FLOPPY0_TYPE 6
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#define FLOPPY1_TYPE 0
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#define N_FDC 2
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#define N_DRIVE 8
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/*
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* Most Alphas have no problems with floppy DMA crossing 64k borders. Sigh...
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*/
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#if defined(CONFIG_ALPHA_XL) || defined(CONFIG_ALPHA_RUFFIAN)
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#define CROSS_64KB(a,s) \
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((unsigned long)(a)/0x10000 != ((unsigned long)(a) + (s) - 1) / 0x10000)
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#else /* XL || RUFFIAN */
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#define CROSS_64KB(a,s) (0)
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#endif /* XL || RUFFIAN */
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#endif /* __ASM_ALPHA_FLOPPY_H */
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