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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-08 11:38:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-08 11:38:42 -0700
commit49b75b87ce2dfbd99e59a50c3681b154d07e3a22 (patch)
treef14e1da19a13d87a512f9043c2f37fd75dd122b3 /arch/arm/mach-pxa/include/mach/dma.h
parentf1c7f79b6ab4f7ada002a0fae47f462ede6b6857 (diff)
parent097d9eb537ff4d88b74c3fe67392e27c478ca3c5 (diff)
Merge branch 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5177/1: arm/mach-sa1100/Makefile: remove CONFIG_SA1100_USB [ARM] 5166/1: magician: add MAINTAINERS entry [ARM] fix pnx4008 build errors [ARM] Fix SMP booting with non-zero PHYS_OFFSET [ARM] 5185/1: Fix spi num_chipselect for lubbock [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach [ARM] Add support for arch/arm/mach-*/include and arch/arm/plat-*/include [ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead [ARM] Eliminate useless includes of asm/mach-types.h [ARM] Fix circular include dependency with IRQ headers avr32: Use <mach/foo.h> instead of <asm/arch/foo.h> avr32: Introduce arch/avr32/mach-*/include/mach avr32: Move include/asm-avr32 to arch/avr32/include/asm [ARM] sa1100_wdt: use reset_status to remember watchdog reset status [ARM] pxa: introduce reset_status and clear_reset_status for driver's usage [ARM] pxa: introduce reset.h for reset specific header information
Diffstat (limited to 'arch/arm/mach-pxa/include/mach/dma.h')
-rw-r--r--arch/arm/mach-pxa/include/mach/dma.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/include/mach/dma.h b/arch/arm/mach-pxa/include/mach/dma.h
new file mode 100644
index 00000000000..955bfe60606
--- /dev/null
+++ b/arch/arm/mach-pxa/include/mach/dma.h
@@ -0,0 +1,50 @@
+/*
+ * arch/arm/mach-pxa/include/mach/dma.h
+ *
+ * Author: Nicolas Pitre
+ * Created: Jun 15, 2001
+ * Copyright: MontaVista Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __ASM_ARCH_DMA_H
+#define __ASM_ARCH_DMA_H
+
+/*
+ * Descriptor structure for PXA's DMA engine
+ * Note: this structure must always be aligned to a 16-byte boundary.
+ */
+
+typedef struct pxa_dma_desc {
+ volatile u32 ddadr; /* Points to the next descriptor + flags */
+ volatile u32 dsadr; /* DSADR value for the current transfer */
+ volatile u32 dtadr; /* DTADR value for the current transfer */
+ volatile u32 dcmd; /* DCMD value for the current transfer */
+} pxa_dma_desc;
+
+typedef enum {
+ DMA_PRIO_HIGH = 0,
+ DMA_PRIO_MEDIUM = 1,
+ DMA_PRIO_LOW = 2
+} pxa_dma_prio;
+
+#if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
+#define HAVE_ARCH_PCI_SET_DMA_MASK 1
+#endif
+
+/*
+ * DMA registration
+ */
+
+int __init pxa_init_dma(int num_ch);
+
+int pxa_request_dma (char *name,
+ pxa_dma_prio prio,
+ void (*irq_handler)(int, void *),
+ void *data);
+
+void pxa_free_dma (int dma_ch);
+
+#endif /* _ASM_ARCH_DMA_H */