From d27ed2b5fe13a0995940053e41582523bd20df42 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Thu, 19 Mar 2009 15:02:37 +0000 Subject: [PATCH] --- yaml --- r: 149267 b: refs/heads/master c: c133c290118bfc99cd7a23b5a00b5252d2be90c8 h: refs/heads/master i: 149265: b93395550d2b4c404b0d40f729839415f5532ca1 149263: 31bf90634e9cfdfddfc7402fc435030e56d8cbd4 v: v3 --- [refs] | 2 +- .../arch/arm/mach-s3c2410/include/mach/dma.h | 117 +--------------- trunk/arch/arm/plat-s3c/include/plat/dma.h | 127 ++++++++++++++++++ 3 files changed, 131 insertions(+), 115 deletions(-) create mode 100644 trunk/arch/arm/plat-s3c/include/plat/dma.h diff --git a/[refs] b/[refs] index db68adb0d041..ec2e8e729ce6 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 023b40cd1018915beb5a519b55ea174683215f16 +refs/heads/master: c133c290118bfc99cd7a23b5a00b5252d2be90c8 diff --git a/trunk/arch/arm/mach-s3c2410/include/mach/dma.h b/trunk/arch/arm/mach-s3c2410/include/mach/dma.h index 6cefa56e6a1f..2fbabecf4f6e 100644 --- a/trunk/arch/arm/mach-s3c2410/include/mach/dma.h +++ b/trunk/arch/arm/mach-s3c2410/include/mach/dma.h @@ -13,6 +13,7 @@ #ifndef __ASM_ARCH_DMA_H #define __ASM_ARCH_DMA_H __FILE__ +#include #include #include @@ -103,32 +104,6 @@ enum s3c2410_dma_loadst { S3C2410_DMALOAD_1LOADED_1RUNNING, }; -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 */ -}; /* flags */ @@ -138,17 +113,14 @@ enum s3c2410_chan_op { /* dma buffer */ -struct s3c2410_dma_client { - char *name; -}; +struct s3c2410_dma_buf; -/* s3c2410_dma_buf_s +/* s3c2410_dma_buf * * internally used buffer structure to describe a queued or running * buffer. */ -struct s3c2410_dma_buf; struct s3c2410_dma_buf { struct s3c2410_dma_buf *next; int magic; /* magic */ @@ -160,20 +132,6 @@ struct s3c2410_dma_buf { /* [1] is this updated for both recv/send modes? */ -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 ); - struct s3c2410_dma_stats { unsigned long loads; unsigned long timeout_longest; @@ -241,73 +199,4 @@ extern struct s3c2410_dma_chan s3c2410_chans[]; /* note, we don't really use dma_device_t at the moment */ typedef unsigned long dma_device_t; -/* functions --------------------------------------------------------------- */ - -/* 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); - #endif /* __ASM_ARCH_DMA_H */ diff --git a/trunk/arch/arm/plat-s3c/include/plat/dma.h b/trunk/arch/arm/plat-s3c/include/plat/dma.h new file mode 100644 index 000000000000..34dba98f08e1 --- /dev/null +++ b/trunk/arch/arm/plat-s3c/include/plat/dma.h @@ -0,0 +1,127 @@ +/* arch/arm/plat-s3c/include/plat/dma.h + * + * Copyright (C) 2003,2004,2006 Simtec Electronics + * Ben Dooks + * + * 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); + +