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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 14:25:32 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-16 14:25:32 -0400 |
commit | 8ef50901d3c619127858b7d7f614fcab45e09d6b (patch) | |
tree | e75a0d48029d4a5857033e4edf1cd572a5a3fc62 /arch/arm/plat-s3c24xx/include/plat/dma.h | |
parent | 435263702ef0fc9ffdc6301a71c03b1d9ac0f1e0 (diff) | |
parent | 2502991560dc8244dbe10e48473d85722c1e2ec1 (diff) |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (51 commits)
[ARM] 5308/1: Fix Viper ISA IRQ handling
[ARM] 5307/1: pxa: fix CM-X2XX PCMCIA build error
[ARM] 5306/1: pxa: fix build error on CM-X270
[ARM] 5302/1: ARM: OMAP: Revert omap3 WDT changes to avoid merge conflict
[ARM] 5305/1: ARM: OMAP: Fix compile of McBSP by removing unnecessary check
[ARM] 5301/1: ARM: OMAP: Add missing irq defines
ARM: OMAP3: Add default kernel config for OMAP LDP
ARM: OMAP3: Add basic board support for OMAP LDP
ARM: OMAP3: Defconfig for the Gumstix Overo board (rev 3)
ARM: OMAP3: Add support for the Gumstix Overo board (rev 3)
ARM: OMAP3: Add Beagle defconfig
ARM: OMAP3: Add minimal Beagle board support
ARM: OMAP3: Add minimal omap3430 support
ARM: OMAP2: Fix sparse, checkpatch warnings in OMAP2/3 IRQ code
ARM: OMAP: Fixes to omap_mcbsp_request function
ARM: OMAP: Add support for OMAP2430 in McBSP
ARM: OMAP: Add support for McBSP devices 3 - 5 on 34xx
ARM: OMAP: Allocate McBSP devices dynamically
Fix sections for omap-mcbsp platform driver
[ARM] S3C24XX: Additional include moves
...
Diffstat (limited to 'arch/arm/plat-s3c24xx/include/plat/dma.h')
-rw-r--r-- | arch/arm/plat-s3c24xx/include/plat/dma.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c24xx/include/plat/dma.h b/arch/arm/plat-s3c24xx/include/plat/dma.h new file mode 100644 index 000000000000..c78efe316fc8 --- /dev/null +++ b/arch/arm/plat-s3c24xx/include/plat/dma.h | |||
@@ -0,0 +1,82 @@ | |||
1 | /* linux/include/asm-arm/plat-s3c24xx/dma.h | ||
2 | * | ||
3 | * Copyright (C) 2006 Simtec Electronics | ||
4 | * Ben Dooks <ben@simtec.co.uk> | ||
5 | * | ||
6 | * Samsung S3C24XX 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 | extern struct sysdev_class dma_sysclass; | ||
14 | extern struct s3c2410_dma_chan s3c2410_chans[S3C2410_DMA_CHANNELS]; | ||
15 | |||
16 | #define DMA_CH_VALID (1<<31) | ||
17 | #define DMA_CH_NEVER (1<<30) | ||
18 | |||
19 | struct s3c24xx_dma_addr { | ||
20 | unsigned long from; | ||
21 | unsigned long to; | ||
22 | }; | ||
23 | |||
24 | /* struct s3c24xx_dma_map | ||
25 | * | ||
26 | * this holds the mapping information for the channel selected | ||
27 | * to be connected to the specified device | ||
28 | */ | ||
29 | |||
30 | struct s3c24xx_dma_map { | ||
31 | const char *name; | ||
32 | struct s3c24xx_dma_addr hw_addr; | ||
33 | |||
34 | unsigned long channels[S3C2410_DMA_CHANNELS]; | ||
35 | unsigned long channels_rx[S3C2410_DMA_CHANNELS]; | ||
36 | }; | ||
37 | |||
38 | struct s3c24xx_dma_selection { | ||
39 | struct s3c24xx_dma_map *map; | ||
40 | unsigned long map_size; | ||
41 | unsigned long dcon_mask; | ||
42 | |||
43 | void (*select)(struct s3c2410_dma_chan *chan, | ||
44 | struct s3c24xx_dma_map *map); | ||
45 | |||
46 | void (*direction)(struct s3c2410_dma_chan *chan, | ||
47 | struct s3c24xx_dma_map *map, | ||
48 | enum s3c2410_dmasrc dir); | ||
49 | }; | ||
50 | |||
51 | extern int s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel); | ||
52 | |||
53 | /* struct s3c24xx_dma_order_ch | ||
54 | * | ||
55 | * channel map for one of the `enum dma_ch` dma channels. the list | ||
56 | * entry contains a set of low-level channel numbers, orred with | ||
57 | * DMA_CH_VALID, which are checked in the order in the array. | ||
58 | */ | ||
59 | |||
60 | struct s3c24xx_dma_order_ch { | ||
61 | unsigned int list[S3C2410_DMA_CHANNELS]; /* list of channels */ | ||
62 | unsigned int flags; /* flags */ | ||
63 | }; | ||
64 | |||
65 | /* struct s3c24xx_dma_order | ||
66 | * | ||
67 | * information provided by either the core or the board to give the | ||
68 | * dma system a hint on how to allocate channels | ||
69 | */ | ||
70 | |||
71 | struct s3c24xx_dma_order { | ||
72 | struct s3c24xx_dma_order_ch channels[DMACH_MAX]; | ||
73 | }; | ||
74 | |||
75 | extern int s3c24xx_dma_order_set(struct s3c24xx_dma_order *map); | ||
76 | |||
77 | /* DMA init code, called from the cpu support code */ | ||
78 | |||
79 | extern int s3c2410_dma_init(void); | ||
80 | |||
81 | extern int s3c24xx_dma_init(unsigned int channels, unsigned int irq, | ||
82 | unsigned int stride); | ||