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authorKukjin Kim <kgene.kim@samsung.com>2011-10-04 11:57:38 +0200
committerKukjin Kim <kgene.kim@samsung.com>2011-10-04 11:57:38 +0200
commit59ca37f74a6e9d3e9367359f2fcbb286df7d9748 (patch)
treecbc0254ef952f10e99e384b56ccc7b81389e335e /arch/arm/plat-samsung/include
parentMerge branch 'next/topic-exynos4-devel' into next-samsung-devel (diff)
parentMerge branch 'next/topic-dma-pl330-devname-fix' into next/topic-dma-samsung (diff)
downloadlinux-59ca37f74a6e9d3e9367359f2fcbb286df7d9748.tar.xz
linux-59ca37f74a6e9d3e9367359f2fcbb286df7d9748.zip
Merge branch 'next/topic-dma-samsung' into next-samsung-devel
Diffstat (limited to 'arch/arm/plat-samsung/include')
-rw-r--r--arch/arm/plat-samsung/include/plat/dma-ops.h63
-rw-r--r--arch/arm/plat-samsung/include/plat/dma-pl330.h (renamed from arch/arm/plat-samsung/include/plat/s3c-dma-pl330.h)24
-rw-r--r--arch/arm/plat-samsung/include/plat/dma-s3c24xx.h2
-rw-r--r--arch/arm/plat-samsung/include/plat/dma.h10
-rw-r--r--arch/arm/plat-samsung/include/plat/s3c-pl330-pdata.h32
5 files changed, 83 insertions, 48 deletions
diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h
new file mode 100644
index 000000000000..4c1a363526cf
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/dma-ops.h
@@ -0,0 +1,63 @@
+/* arch/arm/plat-samsung/include/plat/dma-ops.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * Samsung DMA support
+ *
+ * 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 __SAMSUNG_DMA_OPS_H_
+#define __SAMSUNG_DMA_OPS_H_ __FILE__
+
+#include <linux/dmaengine.h>
+
+struct samsung_dma_prep_info {
+ enum dma_transaction_type cap;
+ enum dma_data_direction direction;
+ dma_addr_t buf;
+ unsigned long period;
+ unsigned long len;
+ void (*fp)(void *data);
+ void *fp_param;
+};
+
+struct samsung_dma_info {
+ enum dma_transaction_type cap;
+ enum dma_data_direction direction;
+ enum dma_slave_buswidth width;
+ dma_addr_t fifo;
+ struct s3c2410_dma_client *client;
+};
+
+struct samsung_dma_ops {
+ unsigned (*request)(enum dma_ch ch, struct samsung_dma_info *info);
+ int (*release)(unsigned ch, struct s3c2410_dma_client *client);
+ int (*prepare)(unsigned ch, struct samsung_dma_prep_info *info);
+ int (*trigger)(unsigned ch);
+ int (*started)(unsigned ch);
+ int (*flush)(unsigned ch);
+ int (*stop)(unsigned ch);
+};
+
+extern void *samsung_dmadev_get_ops(void);
+extern void *s3c_dma_get_ops(void);
+
+static inline void *__samsung_dma_get_ops(void)
+{
+ if (samsung_dma_is_dmadev())
+ return samsung_dmadev_get_ops();
+ else
+ return s3c_dma_get_ops();
+}
+
+/*
+ * samsung_dma_get_ops
+ * get the set of samsung dma operations
+ */
+#define samsung_dma_get_ops() __samsung_dma_get_ops()
+
+#endif /* __SAMSUNG_DMA_OPS_H_ */
diff --git a/arch/arm/plat-samsung/include/plat/s3c-dma-pl330.h b/arch/arm/plat-samsung/include/plat/dma-pl330.h
index 810744213120..2e55e5958674 100644
--- a/arch/arm/plat-samsung/include/plat/s3c-dma-pl330.h
+++ b/arch/arm/plat-samsung/include/plat/dma-pl330.h
@@ -8,11 +8,8 @@
* (at your option) any later version.
*/
-#ifndef __S3C_DMA_PL330_H_
-#define __S3C_DMA_PL330_H_
-
-#define S3C2410_DMAF_AUTOSTART (1 << 0)
-#define S3C2410_DMAF_CIRCULAR (1 << 1)
+#ifndef __DMA_PL330_H_
+#define __DMA_PL330_H_ __FILE__
/*
* PL330 can assign any channel to communicate with
@@ -20,7 +17,7 @@
* For the sake of consistency across client drivers,
* We keep the channel names unchanged and only add
* missing peripherals are added.
- * Order is not important since S3C PL330 API driver
+ * Order is not important since DMA PL330 API driver
* use these just as IDs.
*/
enum dma_ch {
@@ -88,11 +85,20 @@ enum dma_ch {
DMACH_MAX,
};
-static inline bool s3c_dma_has_circular(void)
+struct s3c2410_dma_client {
+ char *name;
+};
+
+static inline bool samsung_dma_has_circular(void)
+{
+ return true;
+}
+
+static inline bool samsung_dma_is_dmadev(void)
{
return true;
}
-#include <plat/dma.h>
+#include <plat/dma-ops.h>
-#endif /* __S3C_DMA_PL330_H_ */
+#endif /* __DMA_PL330_H_ */
diff --git a/arch/arm/plat-samsung/include/plat/dma-s3c24xx.h b/arch/arm/plat-samsung/include/plat/dma-s3c24xx.h
index 336d5ac02035..19828296a562 100644
--- a/arch/arm/plat-samsung/include/plat/dma-s3c24xx.h
+++ b/arch/arm/plat-samsung/include/plat/dma-s3c24xx.h
@@ -47,7 +47,7 @@ struct s3c24xx_dma_selection {
void (*direction)(struct s3c2410_dma_chan *chan,
struct s3c24xx_dma_map *map,
- enum s3c2410_dmasrc dir);
+ enum dma_data_direction dir);
};
extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel);
diff --git a/arch/arm/plat-samsung/include/plat/dma.h b/arch/arm/plat-samsung/include/plat/dma.h
index 8c273b7a6f56..b9061128abde 100644
--- a/arch/arm/plat-samsung/include/plat/dma.h
+++ b/arch/arm/plat-samsung/include/plat/dma.h
@@ -10,17 +10,14 @@
* published by the Free Software Foundation.
*/
+#include <linux/dma-mapping.h>
+
enum s3c2410_dma_buffresult {
S3C2410_RES_OK,
S3C2410_RES_ERR,
S3C2410_RES_ABORT
};
-enum s3c2410_dmasrc {
- S3C2410_DMASRC_HW, /* source is memory */
- S3C2410_DMASRC_MEM /* source is hardware */
-};
-
/* enum s3c2410_chan_op
*
* operation codes passed to the DMA code by the user, and also used
@@ -112,7 +109,7 @@ extern int s3c2410_dma_config(enum dma_ch channel, int xferunit);
*/
extern int s3c2410_dma_devconfig(enum dma_ch channel,
- enum s3c2410_dmasrc source, unsigned long devaddr);
+ enum dma_data_direction source, unsigned long devaddr);
/* s3c2410_dma_getposition
*
@@ -126,3 +123,4 @@ extern int s3c2410_dma_set_opfn(enum dma_ch, s3c2410_dma_opfn_t rtn);
extern int s3c2410_dma_set_buffdone_fn(enum dma_ch, s3c2410_dma_cbfn_t rtn);
+#include <plat/dma-ops.h>
diff --git a/arch/arm/plat-samsung/include/plat/s3c-pl330-pdata.h b/arch/arm/plat-samsung/include/plat/s3c-pl330-pdata.h
deleted file mode 100644
index bf5e2a9d408d..000000000000
--- a/arch/arm/plat-samsung/include/plat/s3c-pl330-pdata.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* linux/arch/arm/plat-samsung/include/plat/s3c-pl330-pdata.h
- *
- * Copyright (C) 2010 Samsung Electronics Co. Ltd.
- * Jaswinder Singh <jassi.brar@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef __S3C_PL330_PDATA_H
-#define __S3C_PL330_PDATA_H
-
-#include <plat/s3c-dma-pl330.h>
-
-/*
- * Every PL330 DMAC has max 32 peripheral interfaces,
- * of which some may be not be really used in your
- * DMAC's configuration.
- * Populate this array of 32 peri i/fs with relevant
- * channel IDs for used peri i/f and DMACH_MAX for
- * those unused.
- *
- * The platforms just need to provide this info
- * to the S3C DMA API driver for PL330.
- */
-struct s3c_pl330_platdata {
- enum dma_ch peri[32];
-};
-
-#endif /* __S3C_PL330_PDATA_H */