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floppy: use symbolic register names in the m68k 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/20200331094054.24441-4-w@1wt.eu
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
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 11:40:34 +02:00 committed by Denis Efremov
parent 7d33850abd
commit 76373fc666
1 changed files with 8 additions and 7 deletions
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15
arch/m68k/include/asm/floppy.h
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@ -211,26 +211,27 @@ asmlinkage irqreturn_t floppy_hardint(int irq, void *dev_id)
st=1;
for(lcount=virtual_dma_count, lptr=virtual_dma_addr;
lcount; lcount--, lptr++) {
st=inb(virtual_dma_port+4) & 0xa0 ;
if(st != 0xa0)
st = inb(virtual_dma_port + FD_STATUS);
st &= STATUS_DMA | STATUS_READY;
if (st != (STATUS_DMA | STATUS_READY))
break;
if(virtual_dma_mode)
outb_p(*lptr, virtual_dma_port+5);
outb_p(*lptr, virtual_dma_port + FD_DATA);
else
*lptr = inb_p(virtual_dma_port+5);
*lptr = inb_p(virtual_dma_port + FD_DATA);
}
virtual_dma_count = lcount;
virtual_dma_addr = lptr;
st = inb(virtual_dma_port+4);
st = inb(virtual_dma_port + FD_STATUS);
}
#ifdef TRACE_FLPY_INT
calls++;
#endif
if(st == 0x20)
if (st == STATUS_DMA)
return IRQ_HANDLED;
if(!(st & 0x20)) {
if (!(st & STATUS_DMA)) {
virtual_dma_residue += virtual_dma_count;
virtual_dma_count=0;
#ifdef TRACE_FLPY_INT