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floppy: use symbolic register names in the parisc port

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Now we can use FD_STATUS and FD_DATA instead of 4 or 5, let's do
this, and also use STATUS_DMA and STATUS_READY for the status bits.

Link: https://lore.kernel.org/r/20200331094054.24441-5-w@1wt.eu
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Denis Efremov <efremov@linux.com>
This commit is contained in:
Willy Tarreau 2020-03-31 11:40:35 +02:00 committed by Denis Efremov
parent 76373fc666
commit 40b7d1b690
1 changed files with 8 additions and 7 deletions
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15
arch/parisc/include/asm/floppy.h
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@ -75,27 +75,28 @@ static void floppy_hardint(int irq, void *dev_id, struct pt_regs * regs)
register char *lptr = virtual_dma_addr;
for (lcount = virtual_dma_count; lcount; lcount--) {
st = fd_inb(virtual_dma_port, 4) & 0xa0;
if (st != 0xa0)
st = fd_inb(virtual_dma_port, FD_STATUS);
st &= STATUS_DMA | STATUS_READY;
if (st != (STATUS_DMA | STATUS_READY))
break;
if (virtual_dma_mode) {
fd_outb(*lptr, virtual_dma_port, 5);
fd_outb(*lptr, virtual_dma_port, FD_DATA);
} else {
*lptr = fd_inb(virtual_dma_port, 5);
*lptr = fd_inb(virtual_dma_port, FD_DATA);
}
lptr++;
}
virtual_dma_count = lcount;
virtual_dma_addr = lptr;
st = fd_inb(virtual_dma_port, 4);
st = fd_inb(virtual_dma_port, FD_STATUS);
}
#ifdef TRACE_FLPY_INT
calls++;
#endif
if (st == 0x20)
if (st == STATUS_DMA)
return;
if (!(st & 0x20)) {
if (!(st & STATUS_DMA)) {
virtual_dma_residue += virtual_dma_count;
virtual_dma_count = 0;
#ifdef TRACE_FLPY_INT