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
6 * Copyright (C) 1996, 1997, 1998, 2003 by Ralf Baechle
8 #ifndef __ASM_MACH_GENERIC_FLOPPY_H
9 #define __ASM_MACH_GENERIC_FLOPPY_H
11 #include <linux/delay.h>
12 #include <linux/init.h>
13 #include <linux/ioport.h>
14 #include <linux/sched.h>
15 #include <linux/kernel.h>
16 #include <linux/linkage.h>
17 #include <linux/types.h>
20 #include <asm/bootinfo.h>
21 #include <asm/cachectl.h>
23 #include <asm/floppy.h>
26 #include <asm/pgtable.h>
29 * How to access the FDC's registers.
31 static inline unsigned char fd_inb(unsigned int port)
36 static inline void fd_outb(unsigned char value, unsigned int port)
42 * How to access the floppy DMA functions.
44 static inline void fd_enable_dma(void)
46 enable_dma(FLOPPY_DMA);
49 static inline void fd_disable_dma(void)
51 disable_dma(FLOPPY_DMA);
54 static inline int fd_request_dma(void)
56 return request_dma(FLOPPY_DMA, "floppy");
59 static inline void fd_free_dma(void)
64 static inline void fd_clear_dma_ff(void)
66 clear_dma_ff(FLOPPY_DMA);
69 static inline void fd_set_dma_mode(char mode)
71 set_dma_mode(FLOPPY_DMA, mode);
74 static inline void fd_set_dma_addr(char *addr)
76 set_dma_addr(FLOPPY_DMA, (unsigned long) addr);
79 static inline void fd_set_dma_count(unsigned int count)
81 set_dma_count(FLOPPY_DMA, count);
84 static inline int fd_get_dma_residue(void)
86 return get_dma_residue(FLOPPY_DMA);
89 static inline void fd_enable_irq(void)
91 enable_irq(FLOPPY_IRQ);
94 static inline void fd_disable_irq(void)
96 disable_irq(FLOPPY_IRQ);
99 static inline int fd_request_irq(void)
101 return request_irq(FLOPPY_IRQ, floppy_interrupt,
102 SA_INTERRUPT | SA_SAMPLE_RANDOM, "floppy", NULL);
105 static inline void fd_free_irq(void)
107 free_irq(FLOPPY_IRQ, NULL);
110 #define fd_free_irq() free_irq(FLOPPY_IRQ, NULL);
113 static inline unsigned long fd_getfdaddr1(void)
118 static inline unsigned long fd_dma_mem_alloc(unsigned long size)
122 mem = __get_dma_pages(GFP_KERNEL, get_order(size));
127 static inline void fd_dma_mem_free(unsigned long addr, unsigned long size)
129 free_pages(addr, get_order(size));
132 static inline unsigned long fd_drive_type(unsigned long n)
135 return 4; /* 3,5", 1.44mb */
140 #endif /* __ASM_MACH_GENERIC_FLOPPY_H */