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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-04 21:02:25 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-04 21:02:25 -0400
commitfba9569924e06da076cb2ad12474bbd82d69f54d (patch)
treef0b7d9c82f8dd90f0dc757a4c00afc0872fc1484 /arch/arm/plat-samsung/include/plat
parent3d0a8d10cfb4cc3d1877c29a866ee7d8a46aa2fa (diff)
parent4598fc2c94b68740e0269db03c98a1e7ad5af773 (diff)
Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (63 commits) dmaengine: mid_dma: mask_peripheral_interrupt only when dmac is idle dmaengine/ep93xx_dma: add module.h include pch_dma: Reduce wasting memory pch_dma: Fix suspend issue dma/timberdale: free_irq() on an error path dma: shdma: transfer based runtime PM dmaengine: shdma: protect against the IRQ handler dmaengine i.MX DMA/SDMA: add missing include of linux/module.h dmaengine: delete redundant chan_id and chancnt initialization in dma drivers dmaengine/amba-pl08x: Check txd->llis_va before freeing dma_pool dmaengine/amba-pl08x: Add support for sg len greater than one for slave transfers serial: sh-sci: don't filter on DMA device, use only channel ID ARM: SAMSUNG: Remove Samsung specific enum type for dma direction ASoC: Samsung: Update DMA interface spi/s3c64xx: Merge dma control code spi/s3c64xx: Add support DMA engine API ARM: SAMSUNG: Remove S3C-PL330-DMA driver ARM: S5P64X0: Use generic DMA PL330 driver ARM: S5PC100: Use generic DMA PL330 driver ARM: S5PV210: Use generic DMA PL330 driver ... Fix up fairly trivial conflicts in - arch/arm/mach-exynos4/{Kconfig,clock.c} - arch/arm/mach-s5p64x0/dma.c
Diffstat (limited to 'arch/arm/plat-samsung/include/plat')
-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 00000000000..4c1a363526c
--- /dev/null
+++ b/arch/arm/plat-samsung/include/plat/dma-ops.h
@@ -0,0 +1,63 @@
1/* arch/arm/plat-samsung/include/plat/dma-ops.h
2 *
3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
5 *
6 * Samsung DMA support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#ifndef __SAMSUNG_DMA_OPS_H_
14#define __SAMSUNG_DMA_OPS_H_ __FILE__
15
16#include <linux/dmaengine.h>
17
18struct samsung_dma_prep_info {
19 enum dma_transaction_type cap;
20 enum dma_data_direction direction;
21 dma_addr_t buf;
22 unsigned long period;
23 unsigned long len;
24 void (*fp)(void *data);
25 void *fp_param;
26};
27
28struct samsung_dma_info {
29 enum dma_transaction_type cap;
30 enum dma_data_direction direction;
31 enum dma_slave_buswidth width;
32 dma_addr_t fifo;
33 struct s3c2410_dma_client *client;
34};
35
36struct samsung_dma_ops {
37 unsigned (*request)(enum dma_ch ch, struct samsung_dma_info *info);
38 int (*release)(unsigned ch, struct s3c2410_dma_client *client);
39 int (*prepare)(unsigned ch, struct samsung_dma_prep_info *info);
40 int (*trigger)(unsigned ch);
41 int (*started)(unsigned ch);
42 int (*flush)(unsigned ch);
43 int (*stop)(unsigned ch);
44};
45
46extern void *samsung_dmadev_get_ops(void);
47extern void *s3c_dma_get_ops(void);
48
49static inline void *__samsung_dma_get_ops(void)
50{
51 if (samsung_dma_is_dmadev())
52 return samsung_dmadev_get_ops();
53 else
54 return s3c_dma_get_ops();
55}
56
57/*
58 * samsung_dma_get_ops
59 * get the set of samsung dma operations
60 */
61#define samsung_dma_get_ops() __samsung_dma_get_ops()
62
63#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 81074421312..2e55e595867 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 @@
8 * (at your option) any later version. 8 * (at your option) any later version.
9 */ 9 */
10 10
11#ifndef __S3C_DMA_PL330_H_ 11#ifndef __DMA_PL330_H_
12#define __S3C_DMA_PL330_H_ 12#define __DMA_PL330_H_ __FILE__
13
14#define S3C2410_DMAF_AUTOSTART (1 << 0)
15#define S3C2410_DMAF_CIRCULAR (1 << 1)
16 13
17/* 14/*
18 * PL330 can assign any channel to communicate with 15 * PL330 can assign any channel to communicate with
@@ -20,7 +17,7 @@
20 * For the sake of consistency across client drivers, 17 * For the sake of consistency across client drivers,
21 * We keep the channel names unchanged and only add 18 * We keep the channel names unchanged and only add
22 * missing peripherals are added. 19 * missing peripherals are added.
23 * Order is not important since S3C PL330 API driver 20 * Order is not important since DMA PL330 API driver
24 * use these just as IDs. 21 * use these just as IDs.
25 */ 22 */
26enum dma_ch { 23enum dma_ch {
@@ -88,11 +85,20 @@ enum dma_ch {
88 DMACH_MAX, 85 DMACH_MAX,
89}; 86};
90 87
91static inline bool s3c_dma_has_circular(void) 88struct s3c2410_dma_client {
89 char *name;
90};
91
92static inline bool samsung_dma_has_circular(void)
93{
94 return true;
95}
96
97static inline bool samsung_dma_is_dmadev(void)
92{ 98{
93 return true; 99 return true;
94} 100}
95 101
96#include <plat/dma.h> 102#include <plat/dma-ops.h>
97 103
98#endif /* __S3C_DMA_PL330_H_ */ 104#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 ab9bce637cb..1c1ed548125 100644
--- a/arch/arm/plat-samsung/include/plat/dma-s3c24xx.h
+++ b/arch/arm/plat-samsung/include/plat/dma-s3c24xx.h
@@ -41,7 +41,7 @@ struct s3c24xx_dma_selection {
41 41
42 void (*direction)(struct s3c2410_dma_chan *chan, 42 void (*direction)(struct s3c2410_dma_chan *chan,
43 struct s3c24xx_dma_map *map, 43 struct s3c24xx_dma_map *map,
44 enum s3c2410_dmasrc dir); 44 enum dma_data_direction dir);
45}; 45};
46 46
47extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel); 47extern 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 8c273b7a6f5..b9061128abd 100644
--- a/arch/arm/plat-samsung/include/plat/dma.h
+++ b/arch/arm/plat-samsung/include/plat/dma.h
@@ -10,17 +10,14 @@
10 * published by the Free Software Foundation. 10 * published by the Free Software Foundation.
11*/ 11*/
12 12
13#include <linux/dma-mapping.h>
14
13enum s3c2410_dma_buffresult { 15enum s3c2410_dma_buffresult {
14 S3C2410_RES_OK, 16 S3C2410_RES_OK,
15 S3C2410_RES_ERR, 17 S3C2410_RES_ERR,
16 S3C2410_RES_ABORT 18 S3C2410_RES_ABORT
17}; 19};
18 20
19enum s3c2410_dmasrc {
20 S3C2410_DMASRC_HW, /* source is memory */
21 S3C2410_DMASRC_MEM /* source is hardware */
22};
23
24/* enum s3c2410_chan_op 21/* enum s3c2410_chan_op
25 * 22 *
26 * operation codes passed to the DMA code by the user, and also used 23 * 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);
112*/ 109*/
113 110
114extern int s3c2410_dma_devconfig(enum dma_ch channel, 111extern int s3c2410_dma_devconfig(enum dma_ch channel,
115 enum s3c2410_dmasrc source, unsigned long devaddr); 112 enum dma_data_direction source, unsigned long devaddr);
116 113
117/* s3c2410_dma_getposition 114/* s3c2410_dma_getposition
118 * 115 *
@@ -126,3 +123,4 @@ extern int s3c2410_dma_set_opfn(enum dma_ch, s3c2410_dma_opfn_t rtn);
126extern int s3c2410_dma_set_buffdone_fn(enum dma_ch, s3c2410_dma_cbfn_t rtn); 123extern int s3c2410_dma_set_buffdone_fn(enum dma_ch, s3c2410_dma_cbfn_t rtn);
127 124
128 125
126#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 bf5e2a9d408..00000000000
--- a/arch/arm/plat-samsung/include/plat/s3c-pl330-pdata.h
+++ /dev/null
@@ -1,32 +0,0 @@
1/* linux/arch/arm/plat-samsung/include/plat/s3c-pl330-pdata.h
2 *
3 * Copyright (C) 2010 Samsung Electronics Co. Ltd.
4 * Jaswinder Singh <jassi.brar@samsung.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#ifndef __S3C_PL330_PDATA_H
13#define __S3C_PL330_PDATA_H
14
15#include <plat/s3c-dma-pl330.h>
16
17/*
18 * Every PL330 DMAC has max 32 peripheral interfaces,
19 * of which some may be not be really used in your
20 * DMAC's configuration.
21 * Populate this array of 32 peri i/fs with relevant
22 * channel IDs for used peri i/f and DMACH_MAX for
23 * those unused.
24 *
25 * The platforms just need to provide this info
26 * to the S3C DMA API driver for PL330.
27 */
28struct s3c_pl330_platdata {
29 enum dma_ch peri[32];
30};
31
32#endif /* __S3C_PL330_PDATA_H */