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133 lines
2.5 KiB
133 lines
2.5 KiB
/* |
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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) 1998, 2003 by Ralf Baechle |
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*/ |
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#ifndef __ASM_MACH_JAZZ_FLOPPY_H |
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#define __ASM_MACH_JAZZ_FLOPPY_H |
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#include <linux/delay.h> |
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#include <linux/linkage.h> |
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#include <linux/types.h> |
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#include <linux/mm.h> |
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#include <asm/addrspace.h> |
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#include <asm/jazz.h> |
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#include <asm/jazzdma.h> |
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static inline unsigned char fd_inb(unsigned int base, unsigned int reg) |
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{ |
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unsigned char c; |
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c = *(volatile unsigned char *) (base + reg); |
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udelay(1); |
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return c; |
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} |
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static inline void fd_outb(unsigned char value, unsigned int base, unsigned int reg) |
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{ |
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*(volatile unsigned char *) (base + reg) = value; |
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} |
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/* |
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* How to access the floppy DMA functions. |
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*/ |
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static inline void fd_enable_dma(void) |
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{ |
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vdma_enable(JAZZ_FLOPPY_DMA); |
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} |
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static inline void fd_disable_dma(void) |
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{ |
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vdma_disable(JAZZ_FLOPPY_DMA); |
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} |
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static inline int fd_request_dma(void) |
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{ |
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return 0; |
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} |
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static inline void fd_free_dma(void) |
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{ |
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} |
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static inline void fd_clear_dma_ff(void) |
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{ |
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} |
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static inline void fd_set_dma_mode(char mode) |
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{ |
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vdma_set_mode(JAZZ_FLOPPY_DMA, mode); |
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} |
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static inline void fd_set_dma_addr(char *a) |
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{ |
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vdma_set_addr(JAZZ_FLOPPY_DMA, vdma_phys2log(CPHYSADDR((unsigned long)a))); |
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} |
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static inline void fd_set_dma_count(unsigned int count) |
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{ |
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vdma_set_count(JAZZ_FLOPPY_DMA, count); |
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} |
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static inline int fd_get_dma_residue(void) |
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{ |
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return vdma_get_residue(JAZZ_FLOPPY_DMA); |
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} |
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static inline void fd_enable_irq(void) |
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{ |
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} |
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static inline void fd_disable_irq(void) |
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{ |
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} |
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static inline int fd_request_irq(void) |
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{ |
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return request_irq(FLOPPY_IRQ, floppy_interrupt, |
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0, "floppy", NULL); |
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} |
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static inline void fd_free_irq(void) |
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{ |
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free_irq(FLOPPY_IRQ, NULL); |
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} |
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static inline unsigned long fd_getfdaddr1(void) |
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{ |
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return JAZZ_FDC_BASE; |
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} |
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static inline unsigned long fd_dma_mem_alloc(unsigned long size) |
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{ |
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unsigned long mem; |
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mem = __get_dma_pages(GFP_KERNEL, get_order(size)); |
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if(!mem) |
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return 0; |
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vdma_alloc(CPHYSADDR(mem), size); /* XXX error checking */ |
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return mem; |
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} |
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static inline void fd_dma_mem_free(unsigned long addr, unsigned long size) |
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{ |
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vdma_free(vdma_phys2log(CPHYSADDR(addr))); |
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free_pages(addr, get_order(size)); |
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} |
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static inline unsigned long fd_drive_type(unsigned long n) |
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{ |
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/* XXX This is wrong for machines with ED 2.88mb disk drives like the |
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Olivetti M700. Anyway, we should suck this from the ARC |
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firmware. */ |
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if (n == 0) |
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return 4; /* 3,5", 1.44mb */ |
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return 0; |
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} |
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#endif /* __ASM_MACH_JAZZ_FLOPPY_H */
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