add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/powerpc/include/asm/floppy.h
..
..
@@ -13,8 +13,8 @@
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 #include <asm/machdep.h>
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-#define fd_inb(port)		inb_p(port)
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-#define fd_outb(value,port)	outb_p(value,port)
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+#define fd_inb(base, reg)		inb_p((base) + (reg))
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+#define fd_outb(value, base, reg)	outb_p(value, (base) + (reg))
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 #define fd_enable_dma()         enable_dma(FLOPPY_DMA)
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 #define fd_disable_dma()	 fd_ops->_disable_dma(FLOPPY_DMA)
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@@ -61,21 +61,22 @@
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 	st = 1;
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 	for (lcount=virtual_dma_count, lptr=virtual_dma_addr;
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 	     lcount; lcount--, lptr++) {
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-		st=inb(virtual_dma_port+4) & 0xa0 ;
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-		if (st != 0xa0)
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+		st = inb(virtual_dma_port + FD_STATUS);
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+		st &= STATUS_DMA | STATUS_READY;
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+		if (st != (STATUS_DMA | STATUS_READY))
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 			break;
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 		if (virtual_dma_mode)
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-			outb_p(*lptr, virtual_dma_port+5);
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+			outb_p(*lptr, virtual_dma_port + FD_DATA);
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 		else
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-			*lptr = inb_p(virtual_dma_port+5);
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+			*lptr = inb_p(virtual_dma_port + FD_DATA);
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 	}
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 	virtual_dma_count = lcount;
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 	virtual_dma_addr = lptr;
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-	st = inb(virtual_dma_port+4);
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+	st = inb(virtual_dma_port + FD_STATUS);
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-	if (st == 0x20)
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+	if (st == STATUS_DMA)
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 		return IRQ_HANDLED;
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-	if (!(st & 0x20)) {
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+	if (!(st & STATUS_DMA)) {
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 		virtual_dma_residue += virtual_dma_count;
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 		virtual_dma_count=0;
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 		doing_vdma = 0;