patch-2.1.96 linux/arch/arm/kernel/dma-dummy.c

• Lines: 46
• Date: Sun Apr 12 11:42:15 1998
• Orig file: v2.1.95/linux/arch/arm/kernel/dma-dummy.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.95/linux/arch/arm/kernel/dma-dummy.c linux/arch/arm/kernel/dma-dummy.c
@@ -0,0 +1,45 @@
+/*
+ * arch/arm/kernel/dma-dummy.c
+ *
+ * Copyright (C) 1998 Russell King
+ *
+ * Dummy DMA functions
+ */
+#include <linux/sched.h>
+#include <linux/init.h>
+
+#include <asm/dma.h>
+#include <asm/io.h>
+#include <asm/hardware.h>
+
+#include "dma.h"
+
+int arch_request_dma(dmach_t channel, dma_t *dma, const char *devname)
+{
+	return -EINVAL;
+}
+
+void arch_free_dma(dmach_t channel, dma_t *dma)
+{
+	printk ("arch_free_dma: invalid channel %d\n", channel);
+}
+
+void arch_enable_dma(dmach_t channel, dma_t *dma)
+{
+	printk ("arch_enable_dma: invalid channel %d\n", channel);
+}
+
+void arch_disable_dma(dmach_t channel, dma_t *dma)
+{
+	printk ("arch_disable_dma: invalid channel %d\n", channel);
+}
+
+int arch_get_dma_residue(dmach_t channel, dma_t *dma)
+{
+	printk ("arch_get_dma_residue: invalid channel %d\n", channel);
+	return 0;
+}
+
+__initfunc(void arch_dma_init(dma_t *dma))
+{
+}