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/*
* linux/include/asm-arm/floppy.h
*
* (C) 1996 Russell King
*/
#ifndef __ASM_ARM_FLOPPY_H
#define __ASM_ARM_FLOPPY_H
#if 0
#include <asm/arch/floppy.h>
#endif
#define fd_outb(val,port) outb((val),(port))
#define fd_inb(port) inb((port))
#define fd_request_irq() request_irq(IRQ_FLOPPYDISK,floppy_interrupt,\
SA_INTERRUPT|SA_SAMPLE_RANDOM,"floppy",NULL)
#define fd_free_irq() free_irq(IRQ_FLOPPYDISK,NULL)
#define fd_disable_irq() disable_irq(IRQ_FLOPPYDISK)
#define fd_enable_irq() enable_irq(IRQ_FLOPPYDISK)
#define fd_request_dma() request_dma(FLOPPY_DMA,"floppy")
#define fd_free_dma() free_dma(FLOPPY_DMA)
#define fd_disable_dma() disable_dma(FLOPPY_DMA)
#define fd_enable_dma() enable_dma(FLOPPY_DMA)
#define fd_clear_dma_ff() clear_dma_ff(FLOPPY_DMA)
#define fd_set_dma_mode(mode) set_dma_mode(FLOPPY_DMA, (mode))
#define fd_set_dma_addr(addr) set_dma_addr(FLOPPY_DMA, virt_to_bus((addr)))
#define fd_set_dma_count(len) set_dma_count(FLOPPY_DMA, (len))
/* Floppy_selects is the list of DOR's to select drive fd
*
* On initialisation, the floppy list is scanned, and the drives allocated
* in the order that they are found. This is done by seeking the drive
* to a non-zero track, and then restoring it to track 0. If an error occurs,
* then there is no floppy drive present. [to be put back in again]
*/
static unsigned char floppy_selects[2][4] =
{
{ 0x10, 0x21, 0x23, 0x33 },
{ 0x10, 0x21, 0x23, 0x33 }
};
#define fd_setdor(dor) \
do { \
int new_dor = (dor); \
if (new_dor & 0xf0) \
fd_outb((new_dor & 0x0c) | floppy_selects[fdc][new_dor & 3], FD_DOR); \
else \
fd_outb((new_dor & 0x0c), FD_DOR); \
} while (0)
/*
* Someday, we'll automatically detect which drives are present...
*/
extern __inline__ void fd_scandrives (void)
{
#if 0
int floppy, drive_count;
fd_disable_irq();
raw_cmd = &default_raw_cmd;
raw_cmd->flags = FD_RAW_SPIN | FD_RAW_NEED_SEEK;
raw_cmd->track = 0;
raw_cmd->rate = ?;
drive_count = 0;
for (floppy = 0; floppy < 4; floppy ++) {
current_drive = drive_count;
/*
* Turn on floppy motor
*/
if (start_motor(redo_fd_request))
continue;
/*
* Set up FDC
*/
fdc_specify();
/*
* Tell FDC to recalibrate
*/
output_byte(FD_RECALIBRATE);
LAST_OUT(UNIT(floppy));
/* wait for command to complete */
if (!successful) {
int i;
for (i = drive_count; i < 3; i--)
floppy_selects[fdc][i] = floppy_selects[fdc][i + 1];
floppy_selects[fdc][3] = 0;
floppy -= 1;
} else
drive_count++;
}
#else
floppy_selects[0][0] = 0x10;
floppy_selects[0][1] = 0x21;
floppy_selects[0][2] = 0x23;
floppy_selects[0][3] = 0x33;
#endif
}
#define FDC1 (0x3f0)
static int FDC2 = -1;
#define FLOPPY0_TYPE 4
#define FLOPPY1_TYPE 4
#define N_FDC 1
#define N_DRIVE 8
#define FLOPPY_MOTOR_MASK 0xf0
#define CROSS_64KB(a,s) (0)
#endif
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