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) 1998, 2003 by Ralf Baechle
8 #ifndef __ASM_MACH_JAZZ_FLOPPY_H
9 #define __ASM_MACH_JAZZ_FLOPPY_H
11 #include <linux/delay.h>
12 #include <linux/linkage.h>
13 #include <linux/types.h>
15 #include <asm/addrspace.h>
17 #include <asm/jazzdma.h>
18 #include <asm/pgtable.h>
20 static inline unsigned char fd_inb(unsigned int port)
24 c = *(volatile unsigned char *) port;
30 static inline void fd_outb(unsigned char value, unsigned int port)
32 *(volatile unsigned char *) port = value;
36 * How to access the floppy DMA functions.
38 static inline void fd_enable_dma(void)
40 vdma_enable(JAZZ_FLOPPY_DMA);
43 static inline void fd_disable_dma(void)
45 vdma_disable(JAZZ_FLOPPY_DMA);
48 static inline int fd_request_dma(void)
53 static inline void fd_free_dma(void)
57 static inline void fd_clear_dma_ff(void)
61 static inline void fd_set_dma_mode(char mode)
63 vdma_set_mode(JAZZ_FLOPPY_DMA, mode);
66 static inline void fd_set_dma_addr(char *a)
68 vdma_set_addr(JAZZ_FLOPPY_DMA, vdma_phys2log(CPHYSADDR((unsigned long)a)));
71 static inline void fd_set_dma_count(unsigned int count)
73 vdma_set_count(JAZZ_FLOPPY_DMA, count);
76 static inline int fd_get_dma_residue(void)
78 return vdma_get_residue(JAZZ_FLOPPY_DMA);
81 static inline void fd_enable_irq(void)
85 static inline void fd_disable_irq(void)
89 static inline int fd_request_irq(void)
91 return request_irq(FLOPPY_IRQ, floppy_interrupt,
95 static inline void fd_free_irq(void)
97 free_irq(FLOPPY_IRQ, NULL);
100 static inline unsigned long fd_getfdaddr1(void)
102 return JAZZ_FDC_BASE;
105 static inline unsigned long fd_dma_mem_alloc(unsigned long size)
109 mem = __get_dma_pages(GFP_KERNEL, get_order(size));
112 vdma_alloc(CPHYSADDR(mem), size); /* XXX error checking */
117 static inline void fd_dma_mem_free(unsigned long addr, unsigned long size)
119 vdma_free(vdma_phys2log(CPHYSADDR(addr)));
120 free_pages(addr, get_order(size));
123 static inline unsigned long fd_drive_type(unsigned long n)
125 /* XXX This is wrong for machines with ED 2.88mb disk drives like the
126 Olivetti M700. Anyway, we should suck this from the ARC
129 return 4; /* 3,5", 1.44mb */
134 #endif /* __ASM_MACH_JAZZ_FLOPPY_H */