1 files changed, 93 insertions, 0 deletions

diff --git a/arch/sh/include/asm/dmaengine.h b/arch/sh/include/asm/dmaengine.h
new file mode 100644
index 00000000000..bf2f30cf0a2
--- /dev/null
+++ b/arch/sh/include/asm/dmaengine.h
@@ -0,0 +1,93 @@
+/*
+ * Header for the new SH dmaengine driver
+ *
+ * Copyright (C) 2010 Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ *
+ * 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_DMAENGINE_H
+#define ASM_DMAENGINE_H
+
+#include <linux/dmaengine.h>
+#include <linux/list.h>
+
+#include <asm/dma-register.h>
+
+#define SH_DMAC_MAX_CHANNELS    6
+
+enum sh_dmae_slave_chan_id {
+        SHDMA_SLAVE_SCIF0_TX,
+        SHDMA_SLAVE_SCIF0_RX,
+        SHDMA_SLAVE_SCIF1_TX,
+        SHDMA_SLAVE_SCIF1_RX,
+        SHDMA_SLAVE_SCIF2_TX,
+        SHDMA_SLAVE_SCIF2_RX,
+        SHDMA_SLAVE_SCIF3_TX,
+        SHDMA_SLAVE_SCIF3_RX,
+        SHDMA_SLAVE_SCIF4_TX,
+        SHDMA_SLAVE_SCIF4_RX,
+        SHDMA_SLAVE_SCIF5_TX,
+        SHDMA_SLAVE_SCIF5_RX,
+        SHDMA_SLAVE_SIUA_TX,
+        SHDMA_SLAVE_SIUA_RX,
+        SHDMA_SLAVE_SIUB_TX,
+        SHDMA_SLAVE_SIUB_RX,
+        SHDMA_SLAVE_NUMBER,     /* Must stay last */
+};
+
+struct sh_dmae_slave_config {
+        enum sh_dmae_slave_chan_id      slave_id;
+        dma_addr_t                      addr;
+        u32                             chcr;
+        char                            mid_rid;
+};
+
+struct sh_dmae_channel {
+        unsigned int    offset;
+        unsigned int    dmars;
+        unsigned int    dmars_bit;
+};
+
+struct sh_dmae_pdata {
+        struct sh_dmae_slave_config *slave;
+        int slave_num;
+        struct sh_dmae_channel *channel;
+        int channel_num;
+        unsigned int ts_low_shift;
+        unsigned int ts_low_mask;
+        unsigned int ts_high_shift;
+        unsigned int ts_high_mask;
+        unsigned int *ts_shift;
+        int ts_shift_num;
+        u16 dmaor_init;
+};
+
+struct device;
+
+/* Used by slave DMA clients to request DMA to/from a specific peripheral */
+struct sh_dmae_slave {
+        enum sh_dmae_slave_chan_id      slave_id; /* Set by the platform */
+        struct device                   *dma_dev; /* Set by the platform */
+        struct sh_dmae_slave_config     *config;  /* Set by the driver */
+};
+
+struct sh_dmae_regs {
+        u32 sar; /* SAR / source address */
+        u32 dar; /* DAR / destination address */
+        u32 tcr; /* TCR / transfer count */
+};
+
+struct sh_desc {
+        struct sh_dmae_regs hw;
+        struct list_head node;
+        struct dma_async_tx_descriptor async_tx;
+        enum dma_data_direction direction;
+        dma_cookie_t cookie;
+        size_t partial;
+        int chunks;
+        int mark;
+};
+
+#endif