patch-2.4.0-test5 linux/arch/arm/kernel/dma-a5k.c

• Lines: 100
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.0-test4/linux/arch/arm/kernel/dma-a5k.c
• Orig date: Fri Jun 23 21:55:07 2000

diff -u --recursive --new-file v2.4.0-test4/linux/arch/arm/kernel/dma-a5k.c linux/arch/arm/kernel/dma-a5k.c
@@ -1,99 +0,0 @@
-/*
- * arch/arm/kernel/dma-a5k.c
- *
- * Copyright (C) 1998 Russell King
- *
- * DMA functions specific to A5000 architecture
- */
-#include <linux/sched.h>
-#include <linux/init.h>
-
-#include <asm/dma.h>
-#include <asm/fiq.h>
-#include <asm/io.h>
-#include <asm/hardware.h>
-
-#include "dma.h"
-
-static struct fiq_handler fh = {
-	name:	"floppydma"
-};
-
-int arch_request_dma(dmach_t channel, dma_t *dma, const char *dev_id)
-{
-	if (channel == DMA_VIRTUAL_FLOPPY)
-		return 0;
-	else
-		return -EINVAL;
-}
-
-void arch_free_dma(dmach_t channel, dma_t *dma)
-{
-	if (channel != DMA_VIRTUAL_FLOPPY)
-		printk("arch_free_dma: invalid channel %d\n", channel);
-}
-
-int arch_get_dma_residue(dmach_t channel, dma_t *dma)
-{
-	if (channel != DMA_VIRTUAL_FLOPPY)
-		printk("arch_dma_count: invalid channel %d\n", channel);
-	else {
-		struct pt_regs regs;
-		get_fiq_regs(&regs);
-		return regs.ARM_r9;
-	}
-	return 0;
-}
-
-void arch_enable_dma(dmach_t channel, dma_t *dma)
-{
-	if (channel != DMA_VIRTUAL_FLOPPY)
-		printk("arch_enable_dma: invalid channel %d\n", channel);
-	else {
-		struct pt_regs regs;
-		void *fiqhandler_start;
-		unsigned int fiqhandler_length;
-		extern void floppy_fiqsetup(unsigned long len, unsigned long addr,
-					     unsigned long port);
-
-		if (dma->dma_mode == DMA_MODE_READ) {
-			extern unsigned char floppy_fiqin_start, floppy_fiqin_end;
-			fiqhandler_start = &floppy_fiqin_start;
-			fiqhandler_length = &floppy_fiqin_end - &floppy_fiqin_start;
-		} else {
-			extern unsigned char floppy_fiqout_start, floppy_fiqout_end;
-			fiqhandler_start = &floppy_fiqout_start;
-			fiqhandler_length = &floppy_fiqout_end - &floppy_fiqout_start;
-		}
-		if (claim_fiq(&fh)) {
-			printk("floppydma: couldn't claim FIQ.\n");
-			return;
-		}
-		memcpy((void *)0x1c, fiqhandler_start, fiqhandler_length);
-		regs.ARM_r9 = dma->buf.length;
-		regs.ARM_r10 = __bus_to_virt(dma->buf.address);
-		regs.ARM_fp = (int)PCIO_FLOPPYDMABASE;
-		set_fiq_regs(&regs);
-		enable_irq(dma->dma_irq);
-	}
-}
-
-void arch_disable_dma(dmach_t channel, dma_t *dma)
-{
-	if (channel != DMA_VIRTUAL_FLOPPY)
-		printk("arch_disable_dma: invalid channel %d\n", channel);
-	else {
-		disable_irq(dma->dma_irq);
-		release_fiq(&fh);
-	}
-}
-
-int arch_set_dma_speed(dmach_t channel, dma_t *dma, int cycle_ns)
-{
-	return 0;
-}
-
-void __init arch_dma_init(dma_t *dma)
-{
-	dma[DMA_VIRTUAL_FLOPPY].dma_irq = 64;
-}