mirror of
https://github.com/torvalds/linux.git
synced 2024-12-17 16:43:08 +00:00
136 lines
2.6 KiB
C
136 lines
2.6 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 1998, 2003 by Ralf Baechle
|
|
*/
|
|
#ifndef __ASM_MACH_JAZZ_FLOPPY_H
|
|
#define __ASM_MACH_JAZZ_FLOPPY_H
|
|
|
|
#include <linux/delay.h>
|
|
#include <linux/init.h>
|
|
#include <linux/linkage.h>
|
|
#include <linux/types.h>
|
|
#include <linux/mm.h>
|
|
#include <asm/addrspace.h>
|
|
#include <asm/jazz.h>
|
|
#include <asm/jazzdma.h>
|
|
#include <asm/pgtable.h>
|
|
|
|
static inline unsigned char fd_inb(unsigned int port)
|
|
{
|
|
unsigned char c;
|
|
|
|
c = *(volatile unsigned char *) port;
|
|
udelay(1);
|
|
|
|
return c;
|
|
}
|
|
|
|
static inline void fd_outb(unsigned char value, unsigned int port)
|
|
{
|
|
*(volatile unsigned char *) port = value;
|
|
}
|
|
|
|
/*
|
|
* How to access the floppy DMA functions.
|
|
*/
|
|
static inline void fd_enable_dma(void)
|
|
{
|
|
vdma_enable(JAZZ_FLOPPY_DMA);
|
|
}
|
|
|
|
static inline void fd_disable_dma(void)
|
|
{
|
|
vdma_disable(JAZZ_FLOPPY_DMA);
|
|
}
|
|
|
|
static inline int fd_request_dma(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void fd_free_dma(void)
|
|
{
|
|
}
|
|
|
|
static inline void fd_clear_dma_ff(void)
|
|
{
|
|
}
|
|
|
|
static inline void fd_set_dma_mode(char mode)
|
|
{
|
|
vdma_set_mode(JAZZ_FLOPPY_DMA, mode);
|
|
}
|
|
|
|
static inline void fd_set_dma_addr(char *a)
|
|
{
|
|
vdma_set_addr(JAZZ_FLOPPY_DMA, vdma_phys2log(CPHYSADDR((unsigned long)a)));
|
|
}
|
|
|
|
static inline void fd_set_dma_count(unsigned int count)
|
|
{
|
|
vdma_set_count(JAZZ_FLOPPY_DMA, count);
|
|
}
|
|
|
|
static inline int fd_get_dma_residue(void)
|
|
{
|
|
return vdma_get_residue(JAZZ_FLOPPY_DMA);
|
|
}
|
|
|
|
static inline void fd_enable_irq(void)
|
|
{
|
|
}
|
|
|
|
static inline void fd_disable_irq(void)
|
|
{
|
|
}
|
|
|
|
static inline int fd_request_irq(void)
|
|
{
|
|
return request_irq(FLOPPY_IRQ, floppy_interrupt,
|
|
IRQF_DISABLED, "floppy", NULL);
|
|
}
|
|
|
|
static inline void fd_free_irq(void)
|
|
{
|
|
free_irq(FLOPPY_IRQ, NULL);
|
|
}
|
|
|
|
static inline unsigned long fd_getfdaddr1(void)
|
|
{
|
|
return JAZZ_FDC_BASE;
|
|
}
|
|
|
|
static inline unsigned long fd_dma_mem_alloc(unsigned long size)
|
|
{
|
|
unsigned long mem;
|
|
|
|
mem = __get_dma_pages(GFP_KERNEL, get_order(size));
|
|
if(!mem)
|
|
return 0;
|
|
vdma_alloc(CPHYSADDR(mem), size); /* XXX error checking */
|
|
|
|
return mem;
|
|
}
|
|
|
|
static inline void fd_dma_mem_free(unsigned long addr, unsigned long size)
|
|
{
|
|
vdma_free(vdma_phys2log(CPHYSADDR(addr)));
|
|
free_pages(addr, get_order(size));
|
|
}
|
|
|
|
static inline unsigned long fd_drive_type(unsigned long n)
|
|
{
|
|
/* XXX This is wrong for machines with ED 2.88mb disk drives like the
|
|
Olivetti M700. Anyway, we should suck this from the ARC
|
|
firmware. */
|
|
if (n == 0)
|
|
return 4; /* 3,5", 1.44mb */
|
|
|
|
return 0;
|
|
}
|
|
|
|
#endif /* __ASM_MACH_JAZZ_FLOPPY_H */
|