dma.c File Reference

#include <linux/module.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/syscore_ops.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/io.h>
#include <asm/irq.h>
#include <mach/hardware.h>
#include <mach/dma.h>
#include <mach/map.h>
#include <plat/dma-s3c24xx.h>
#include <plat/regs-dma.h>

Go to the source code of this file.

Data Structures
struct	s3c2410_dma_regstate

Macros
#define	BUF_MAGIC   (0xcafebabe)
#define	dmawarn(fmt...)   printk(KERN_DEBUG fmt)
#define	dma_regaddr(chan, reg)   ((chan)->regs + (reg))
#define	dma_wrreg(chan, reg, val)   writel((val), (chan)->regs + (reg))
#define	dma_rdreg(chan, reg)   readl((chan)->regs + (reg))
#define	dbg_showregs(chan)   do { } while(0)
#define	dbg_showchan(chan)   do { } while(0)
#define	dmadbg2(x...)
#define	s3c2410_dma_suspend   NULL
#define	s3c2410_dma_resume   NULL

Functions
int	s3c2410_dma_enqueue (enum dma_ch channel, void *id, dma_addr_t data, int size)
	EXPORT_SYMBOL (s3c2410_dma_enqueue)
int	s3c2410_dma_request (enum dma_ch channel, struct s3c2410_dma_client *client, void *dev)
	EXPORT_SYMBOL (s3c2410_dma_request)
int	s3c2410_dma_free (enum dma_ch channel, struct s3c2410_dma_client *client)
	EXPORT_SYMBOL (s3c2410_dma_free)
int	s3c2410_dma_ctrl (enum dma_ch channel, enum s3c2410_chan_op op)
	EXPORT_SYMBOL (s3c2410_dma_ctrl)
int	s3c2410_dma_config (enum dma_ch channel, int xferunit)
	EXPORT_SYMBOL (s3c2410_dma_config)
int	s3c2410_dma_devconfig (enum dma_ch channel, enum dma_data_direction source, unsigned long devaddr)
	EXPORT_SYMBOL (s3c2410_dma_devconfig)
int	s3c2410_dma_getposition (enum dma_ch channel, dma_addr_t *src, dma_addr_t *dst)
	EXPORT_SYMBOL (s3c2410_dma_getposition)
	late_initcall (s3c24xx_dma_syscore_init)
int __init	s3c24xx_dma_init (unsigned int channels, unsigned int irq, unsigned int stride)
int __init	s3c2410_dma_init (void)
int __init	s3c24xx_dma_init_map (struct s3c24xx_dma_selection *sel)
int __init	s3c24xx_dma_order_set (struct s3c24xx_dma_order *ord)

Variables
struct syscore_ops	dma_syscore_ops

Macro Definition Documentation

#define BUF_MAGIC   (0xcafebabe)

Definition at line 49 of file dma.c.

#define dbg_showchan

(

chan

)

do { } while(0)

Definition at line 132 of file dma.c.

#define dbg_showregs

(

chan

)

do { } while(0)

Definition at line 131 of file dma.c.

#define dma_rdreg	(		chan,
			reg
	)		readl((chan)->regs + (reg))

Definition at line 66 of file dma.c.

#define dma_regaddr	(		chan,
			reg
	)		((chan)->regs + (reg))

Definition at line 53 of file dma.c.

#define dma_wrreg	(		chan,
			reg,
			val
	)		writel((val), (chan)->regs + (reg))

Definition at line 56 of file dma.c.

#define dmadbg2

(

x...

)

Definition at line 577 of file dma.c.

#define dmawarn

(

fmt...

)

printk(KERN_DEBUG fmt)

Definition at line 51 of file dma.c.

#define s3c2410_dma_resume   NULL

Definition at line 1258 of file dma.c.

#define s3c2410_dma_suspend   NULL

Definition at line 1257 of file dma.c.

Function Documentation

EXPORT_SYMBOL

(

s3c2410_dma_enqueue

)

EXPORT_SYMBOL

(

s3c2410_dma_request

)

EXPORT_SYMBOL

(

s3c2410_dma_free

)

EXPORT_SYMBOL

(

s3c2410_dma_ctrl

)

EXPORT_SYMBOL

(

s3c2410_dma_config

)

EXPORT_SYMBOL

(

s3c2410_dma_devconfig

)

EXPORT_SYMBOL

(

s3c2410_dma_getposition

)

late_initcall

(

s3c24xx_dma_syscore_init

)

int s3c2410_dma_config	(	enum dma_ch	channel,
		int	xferunit
	)

Definition at line 1024 of file dma.c.

int s3c2410_dma_ctrl	(	enum dma_ch	channel,
		enum s3c2410_chan_op	op
	)

Definition at line 977 of file dma.c.

int s3c2410_dma_devconfig	(	enum dma_ch	channel,
		enum dma_data_direction	source,
		unsigned long	devaddr
	)

Definition at line 1103 of file dma.c.

int s3c2410_dma_enqueue	(	enum dma_ch	channel,
		void *	id,
		dma_addr_t	data,
		int	size
	)

Definition at line 433 of file dma.c.

int s3c2410_dma_free	(	enum dma_ch	channel,
		struct s3c2410_dma_client *	client
	)

Definition at line 786 of file dma.c.

int s3c2410_dma_getposition	(	enum dma_ch	channel,
		dma_addr_t *	src,
		dma_addr_t *	dst
	)

Definition at line 1176 of file dma.c.

int __init s3c2410_dma_init

(

void

)

Definition at line 1343 of file dma.c.

int s3c2410_dma_request	(	enum dma_ch	channel,
		struct s3c2410_dma_client *	client,
		void *	dev
	)

Definition at line 715 of file dma.c.

int __init s3c24xx_dma_init	(	unsigned int	channels,
		unsigned int	irq,
		unsigned int	stride
	)

Definition at line 1284 of file dma.c.

int __init s3c24xx_dma_init_map

(

struct s3c24xx_dma_selection *

sel

)

Definition at line 1434 of file dma.c.

int __init s3c24xx_dma_order_set

(

struct s3c24xx_dma_order *

ord

)

Definition at line 1454 of file dma.c.

Variable Documentation

struct syscore_ops dma_syscore_ops

Initial value:

= {
    .suspend    = s3c2410_dma_suspend,
    .resume     = s3c2410_dma_resume,
}

Definition at line 1261 of file dma.c.