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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, (addr))

#define fd_set_dma_count(len)   set_dma_count(FLOPPY_DMA, (len))

#define fd_cacheflush(addr,sz)

/* 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