fc0c5c0c85
The fd_outb() macro on ARM relies on a special fd_setdor() macro when the register is FD_DOR and both will need to be changed to accept a separate base address. Let's just remerge them to simplify the change and make this code more easily reviewable. Link: https://lore.kernel.org/r/20200301195555.11154-4-w@1wt.eu Cc: Ian Molton <spyro@f2s.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Willy Tarreau <w@1wt.eu> Signed-off-by: Denis Efremov <efremov@linux.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* arch/arm/include/asm/floppy.h
|
|
*
|
|
* Copyright (C) 1996-2000 Russell King
|
|
*
|
|
* Note that we don't touch FLOPPY_DMA nor FLOPPY_IRQ here
|
|
*/
|
|
#ifndef __ASM_ARM_FLOPPY_H
|
|
#define __ASM_ARM_FLOPPY_H
|
|
|
|
#define fd_outb(val,port) \
|
|
do { \
|
|
int new_val = (val); \
|
|
if ((port) == (u32)FD_DOR) { \
|
|
if (new_val & 0xf0) \
|
|
new_val = (new_val & 0x0c) | \
|
|
floppy_selects[new_val & 3]; \
|
|
else \
|
|
new_val &= 0x0c; \
|
|
} \
|
|
outb(new_val, (port)); \
|
|
} while(0)
|
|
|
|
#define fd_inb(port) inb((port))
|
|
#define fd_request_irq() request_irq(IRQ_FLOPPYDISK,floppy_interrupt,\
|
|
0,"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)
|
|
|
|
static inline int fd_dma_setup(void *data, unsigned int length,
|
|
unsigned int mode, unsigned long addr)
|
|
{
|
|
set_dma_mode(DMA_FLOPPY, mode);
|
|
__set_dma_addr(DMA_FLOPPY, data);
|
|
set_dma_count(DMA_FLOPPY, length);
|
|
virtual_dma_port = addr;
|
|
enable_dma(DMA_FLOPPY);
|
|
return 0;
|
|
}
|
|
#define fd_dma_setup fd_dma_setup
|
|
|
|
#define fd_request_dma() request_dma(DMA_FLOPPY,"floppy")
|
|
#define fd_free_dma() free_dma(DMA_FLOPPY)
|
|
#define fd_disable_dma() disable_dma(DMA_FLOPPY)
|
|
|
|
/* need to clean up dma.h */
|
|
#define DMA_FLOPPYDISK DMA_FLOPPY
|
|
|
|
/* 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[4] = { 0x10, 0x21, 0x23, 0x33 };
|
|
|
|
#define FDC1 (0x3f0)
|
|
|
|
#define FLOPPY0_TYPE 4
|
|
#define FLOPPY1_TYPE 4
|
|
|
|
#define N_FDC 1
|
|
#define N_DRIVE 4
|
|
|
|
#define CROSS_64KB(a,s) (0)
|
|
|
|
/*
|
|
* This allows people to reverse the order of
|
|
* fd0 and fd1, in case their hardware is
|
|
* strangely connected (as some RiscPCs
|
|
* and A5000s seem to be).
|
|
*/
|
|
static void driveswap(int *ints, int dummy, int dummy2)
|
|
{
|
|
swap(floppy_selects[0], floppy_selects[1]);
|
|
}
|
|
|
|
#define EXTRA_FLOPPY_PARAMS ,{ "driveswap", &driveswap, NULL, 0, 0 }
|
|
|
|
#endif
|