-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
yaml --- r: 149267 b: refs/heads/master c: c133c29 h: refs/heads/master i: 149265: b933955 149263: 31bf906 v: v3
- Loading branch information
Ben Dooks
authored and
Ben Dooks
committed
May 1, 2009
1 parent
0091edc
commit d27ed2b
Showing
3 changed files
with
131 additions
and
115 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,2 @@ | ||
| --- | ||
| refs/heads/master: 023b40cd1018915beb5a519b55ea174683215f16 | ||
| refs/heads/master: c133c290118bfc99cd7a23b5a00b5252d2be90c8 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| /* arch/arm/plat-s3c/include/plat/dma.h | ||
| * | ||
| * Copyright (C) 2003,2004,2006 Simtec Electronics | ||
| * Ben Dooks <ben@simtec.co.uk> | ||
| * | ||
| * Samsung S3C 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. | ||
| */ | ||
|
|
||
| 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 | ||
| * to inform the current channel owner of any changes to the system state | ||
| */ | ||
|
|
||
| enum s3c2410_chan_op { | ||
| S3C2410_DMAOP_START, | ||
| S3C2410_DMAOP_STOP, | ||
| S3C2410_DMAOP_PAUSE, | ||
| S3C2410_DMAOP_RESUME, | ||
| S3C2410_DMAOP_FLUSH, | ||
| S3C2410_DMAOP_TIMEOUT, /* internal signal to handler */ | ||
| S3C2410_DMAOP_STARTED, /* indicate channel started */ | ||
| }; | ||
|
|
||
| struct s3c2410_dma_client { | ||
| char *name; | ||
| }; | ||
|
|
||
| struct s3c2410_dma_chan; | ||
|
|
||
| /* s3c2410_dma_cbfn_t | ||
| * | ||
| * buffer callback routine type | ||
| */ | ||
|
|
||
| typedef void (*s3c2410_dma_cbfn_t)(struct s3c2410_dma_chan *, | ||
| void *buf, int size, | ||
| enum s3c2410_dma_buffresult result); | ||
|
|
||
| typedef int (*s3c2410_dma_opfn_t)(struct s3c2410_dma_chan *, | ||
| enum s3c2410_chan_op ); | ||
|
|
||
|
|
||
|
|
||
| /* s3c2410_dma_request | ||
| * | ||
| * request a dma channel exclusivley | ||
| */ | ||
|
|
||
| extern int s3c2410_dma_request(unsigned int channel, | ||
| struct s3c2410_dma_client *, void *dev); | ||
|
|
||
|
|
||
| /* s3c2410_dma_ctrl | ||
| * | ||
| * change the state of the dma channel | ||
| */ | ||
|
|
||
| extern int s3c2410_dma_ctrl(unsigned int channel, enum s3c2410_chan_op op); | ||
|
|
||
| /* s3c2410_dma_setflags | ||
| * | ||
| * set the channel's flags to a given state | ||
| */ | ||
|
|
||
| extern int s3c2410_dma_setflags(unsigned int channel, | ||
| unsigned int flags); | ||
|
|
||
| /* s3c2410_dma_free | ||
| * | ||
| * free the dma channel (will also abort any outstanding operations) | ||
| */ | ||
|
|
||
| extern int s3c2410_dma_free(unsigned int channel, struct s3c2410_dma_client *); | ||
|
|
||
| /* s3c2410_dma_enqueue | ||
| * | ||
| * place the given buffer onto the queue of operations for the channel. | ||
| * The buffer must be allocated from dma coherent memory, or the Dcache/WB | ||
| * drained before the buffer is given to the DMA system. | ||
| */ | ||
|
|
||
| extern int s3c2410_dma_enqueue(unsigned int channel, void *id, | ||
| dma_addr_t data, int size); | ||
|
|
||
| /* s3c2410_dma_config | ||
| * | ||
| * configure the dma channel | ||
| */ | ||
|
|
||
| extern int s3c2410_dma_config(unsigned int channel, int xferunit); | ||
|
|
||
| /* s3c2410_dma_devconfig | ||
| * | ||
| * configure the device we're talking to | ||
| */ | ||
|
|
||
| extern int s3c2410_dma_devconfig(int channel, enum s3c2410_dmasrc source, | ||
| unsigned long devaddr); | ||
|
|
||
| /* s3c2410_dma_getposition | ||
| * | ||
| * get the position that the dma transfer is currently at | ||
| */ | ||
|
|
||
| extern int s3c2410_dma_getposition(unsigned int channel, | ||
| dma_addr_t *src, dma_addr_t *dest); | ||
|
|
||
| extern int s3c2410_dma_set_opfn(unsigned int, s3c2410_dma_opfn_t rtn); | ||
| extern int s3c2410_dma_set_buffdone_fn(unsigned int, s3c2410_dma_cbfn_t rtn); | ||
|
|
||
|
|