1/* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 1998, 2003 by Ralf Baechle 7 */ 8#ifndef __ASM_MACH_JAZZ_FLOPPY_H 9#define __ASM_MACH_JAZZ_FLOPPY_H 10 11#include <linux/delay.h> 12#include <linux/init.h> 13#include <linux/linkage.h> 14#include <linux/types.h> 15#include <linux/mm.h> 16#include <asm/addrspace.h> 17#include <asm/jazz.h> 18#include <asm/jazzdma.h> 19#include <asm/pgtable.h> 20 21static inline unsigned char fd_inb(unsigned int port) 22{ 23 unsigned char c; 24 25 c = *(volatile unsigned char *) port; 26 udelay(1); 27 28 return c; 29} 30 31static inline void fd_outb(unsigned char value, unsigned int port) 32{ 33 *(volatile unsigned char *) port = value; 34} 35 36/* 37 * How to access the floppy DMA functions. 38 */ 39static inline void fd_enable_dma(void) 40{ 41 vdma_enable(JAZZ_FLOPPY_DMA); 42} 43 44static inline void fd_disable_dma(void) 45{ 46 vdma_disable(JAZZ_FLOPPY_DMA); 47} 48 49static inline int fd_request_dma(void) 50{ 51 return 0; 52} 53 54static inline void fd_free_dma(void) 55{ 56} 57 58static inline void fd_clear_dma_ff(void) 59{ 60} 61 62static inline void fd_set_dma_mode(char mode) 63{ 64 vdma_set_mode(JAZZ_FLOPPY_DMA, mode); 65} 66 67static inline void fd_set_dma_addr(char *a) 68{ 69 vdma_set_addr(JAZZ_FLOPPY_DMA, vdma_phys2log(CPHYSADDR((unsigned long)a))); 70} 71 72static inline void fd_set_dma_count(unsigned int count) 73{ 74 vdma_set_count(JAZZ_FLOPPY_DMA, count); 75} 76 77static inline int fd_get_dma_residue(void) 78{ 79 return vdma_get_residue(JAZZ_FLOPPY_DMA); 80} 81 82static inline void fd_enable_irq(void) 83{ 84} 85 86static inline void fd_disable_irq(void) 87{ 88} 89 90static inline int fd_request_irq(void) 91{ 92 return request_irq(FLOPPY_IRQ, floppy_interrupt, 93 IRQF_DISABLED, "floppy", NULL); 94} 95 96static inline void fd_free_irq(void) 97{ 98 free_irq(FLOPPY_IRQ, NULL); 99} 100 101static inline unsigned long fd_getfdaddr1(void) 102{ 103 return JAZZ_FDC_BASE; 104} 105 106static inline unsigned long fd_dma_mem_alloc(unsigned long size) 107{ 108 unsigned long mem; 109 110 mem = __get_dma_pages(GFP_KERNEL, get_order(size)); 111 if(!mem) 112 return 0; 113 vdma_alloc(CPHYSADDR(mem), size); 114 115 return mem; 116} 117 118static inline void fd_dma_mem_free(unsigned long addr, unsigned long size) 119{ 120 vdma_free(vdma_phys2log(CPHYSADDR(addr))); 121 free_pages(addr, get_order(size)); 122} 123 124static inline unsigned long fd_drive_type(unsigned long n) 125{ 126 if (n == 0) 127 return 4; /* 3,5", 1.44mb */ 128 129 return 0; 130} 131 132#endif /* __ASM_MACH_JAZZ_FLOPPY_H */ 133