#include <linux/io.h>
#include <linux/spinlock.h>
#include <linux/delay.h>

Data Structures
struct	dma_chan

Macros
#define	NUM_AU1000_DMA_CHANNELS 8

#define	DMA_MODE_SET 0x00000000

#define	DMA_MODE_READ DMA_MODE_SET

#define	DMA_MODE_CLEAR 0x00000004

#define	DMA_DAH_MASK (0x0f << 20)

#define	DMA_DID_BIT 16

#define	DMA_DID_MASK (0x0f << DMA_DID_BIT)

#define	DMA_DS (1 << 15)

#define	DMA_BE (1 << 13)

#define	DMA_DR (1 << 12)

#define	DMA_TS8 (1 << 11)

#define	DMA_DW_BIT 9

#define	DMA_DW_MASK (0x03 << DMA_DW_BIT)

#define	DMA_DW8 (0 << DMA_DW_BIT)

#define	DMA_DW16 (1 << DMA_DW_BIT)

#define	DMA_DW32 (2 << DMA_DW_BIT)

#define	DMA_NC (1 << 8)

#define	DMA_IE (1 << 7)

#define	DMA_HALT (1 << 6)

#define	DMA_GO (1 << 5)

#define	DMA_AB (1 << 4)

#define	DMA_D1 (1 << 3)

#define	DMA_BE1 (1 << 2)

#define	DMA_D0 (1 << 1)

#define	DMA_BE0 (1 << 0)

#define	DMA_PERIPHERAL_ADDR 0x00000008

#define	DMA_BUFFER0_START 0x0000000C

#define	DMA_BUFFER1_START 0x00000014

#define	DMA_BUFFER0_COUNT 0x00000010

#define	DMA_BUFFER1_COUNT 0x00000018

#define	DMA_BAH_BIT 16

#define	DMA_BAH_MASK (0x0f << DMA_BAH_BIT)

#define	DMA_COUNT_BIT 0

#define	DMA_COUNT_MASK (0xffff << DMA_COUNT_BIT)

#define	DMA_HALT_POLL 0x5000

Enumerations
enum	{ DMA_ID_UART0_TX = 0, DMA_ID_UART0_RX, DMA_ID_GP04, DMA_ID_GP05, DMA_ID_AC97C_TX, DMA_ID_AC97C_RX, DMA_ID_UART3_TX, DMA_ID_UART3_RX, DMA_ID_USBDEV_EP0_RX, DMA_ID_USBDEV_EP0_TX, DMA_ID_USBDEV_EP2_TX, DMA_ID_USBDEV_EP3_TX, DMA_ID_USBDEV_EP4_RX, DMA_ID_USBDEV_EP5_RX, DMA_ID_I2S_TX, DMA_ID_I2S_RX, DMA_NUM_DEV }

enum	{ DMA_ID_SD0_TX = 0, DMA_ID_SD0_RX, DMA_ID_SD1_TX, DMA_ID_SD1_RX, DMA_NUM_DEV_BANK2 }

Functions
int	request_au1000_dma (int dev_id, const char dev_str, irq_handler_t irqhandler, unsigned long irqflags, void irq_dev_id)

void	free_au1000_dma (unsigned int dmanr)

int	au1000_dma_read_proc (char buf, char start, off_t fpos, int length, int eof, void *data)

void	dump_au1000_dma_channel (unsigned int dmanr)

Variables
struct dma_chan	au1000_dma_table []

spinlock_t	au1000_dma_spin_lock

Macro Definition Documentation

#define DMA_AB (1 << 4)

Definition at line 60 of file au1000_dma.h.

#define DMA_BAH_BIT 16

Definition at line 71 of file au1000_dma.h.

#define DMA_BAH_MASK (0x0f << DMA_BAH_BIT)

Definition at line 72 of file au1000_dma.h.

#define DMA_BE (1 << 13)

Definition at line 48 of file au1000_dma.h.

#define DMA_BE0 (1 << 0)

Definition at line 64 of file au1000_dma.h.

#define DMA_BE1 (1 << 2)

Definition at line 62 of file au1000_dma.h.

#define DMA_BUFFER0_COUNT 0x00000010

Definition at line 69 of file au1000_dma.h.

#define DMA_BUFFER0_START 0x0000000C

Definition at line 67 of file au1000_dma.h.

#define DMA_BUFFER1_COUNT 0x00000018

Definition at line 70 of file au1000_dma.h.

#define DMA_BUFFER1_START 0x00000014

Definition at line 68 of file au1000_dma.h.

#define DMA_COUNT_BIT 0

Definition at line 73 of file au1000_dma.h.

#define DMA_COUNT_MASK (0xffff << DMA_COUNT_BIT)

Definition at line 74 of file au1000_dma.h.

#define DMA_D0 (1 << 1)

Definition at line 63 of file au1000_dma.h.

#define DMA_D1 (1 << 3)

Definition at line 61 of file au1000_dma.h.

#define DMA_DAH_MASK (0x0f << 20)

Definition at line 44 of file au1000_dma.h.

#define DMA_DID_BIT 16

Definition at line 45 of file au1000_dma.h.

#define DMA_DID_MASK (0x0f << DMA_DID_BIT)

Definition at line 46 of file au1000_dma.h.

#define DMA_DR (1 << 12)

Definition at line 49 of file au1000_dma.h.

#define DMA_DS (1 << 15)

Definition at line 47 of file au1000_dma.h.

#define DMA_DW16 (1 << DMA_DW_BIT)

Definition at line 54 of file au1000_dma.h.

#define DMA_DW32 (2 << DMA_DW_BIT)

Definition at line 55 of file au1000_dma.h.

#define DMA_DW8 (0 << DMA_DW_BIT)

Definition at line 53 of file au1000_dma.h.

#define DMA_DW_BIT 9

Definition at line 51 of file au1000_dma.h.

#define DMA_DW_MASK (0x03 << DMA_DW_BIT)

Definition at line 52 of file au1000_dma.h.

#define DMA_GO (1 << 5)

Definition at line 59 of file au1000_dma.h.

#define DMA_HALT (1 << 6)

Definition at line 58 of file au1000_dma.h.

#define DMA_HALT_POLL 0x5000

Definition at line 189 of file au1000_dma.h.

#define DMA_IE (1 << 7)

Definition at line 57 of file au1000_dma.h.

#define DMA_MODE_CLEAR 0x00000004

Definition at line 42 of file au1000_dma.h.

#define DMA_MODE_READ DMA_MODE_SET

Definition at line 41 of file au1000_dma.h.

#define DMA_MODE_SET 0x00000000

Definition at line 40 of file au1000_dma.h.

#define DMA_NC (1 << 8)

Definition at line 56 of file au1000_dma.h.

#define DMA_PERIPHERAL_ADDR 0x00000008

Definition at line 66 of file au1000_dma.h.

#define DMA_TS8 (1 << 11)

Definition at line 50 of file au1000_dma.h.

#define NUM_AU1000_DMA_CHANNELS 8

Definition at line 37 of file au1000_dma.h.

Enumeration Type Documentation

anonymous enum

Enumerator:

DMA_ID_UART0_TX
DMA_ID_UART0_RX
DMA_ID_GP04
DMA_ID_GP05
DMA_ID_AC97C_TX
DMA_ID_AC97C_RX
DMA_ID_UART3_TX
DMA_ID_UART3_RX
DMA_ID_USBDEV_EP0_RX
DMA_ID_USBDEV_EP0_TX
DMA_ID_USBDEV_EP2_TX
DMA_ID_USBDEV_EP3_TX
DMA_ID_USBDEV_EP4_RX
DMA_ID_USBDEV_EP5_RX
DMA_ID_I2S_TX
DMA_ID_I2S_RX
DMA_NUM_DEV

Definition at line 77 of file au1000_dma.h.

anonymous enum

Enumerator:

DMA_ID_SD0_TX
DMA_ID_SD0_RX
DMA_ID_SD1_TX
DMA_ID_SD1_RX
DMA_NUM_DEV_BANK2

Definition at line 98 of file au1000_dma.h.

Function Documentation

int au1000_dma_read_proc	(	char *	buf,
		char **	start,
		off_t	fpos,
		int	length,
		int *	eof,
		void *	data
	)

Definition at line 100 of file dma.c.

void dump_au1000_dma_channel ( unsigned int dmanr )

Definition at line 134 of file dma.c.

void free_au1000_dma ( unsigned int dmanr )

Definition at line 220 of file dma.c.

int request_au1000_dma	(	int	dev_id,
		const char *	dev_str,
		irq_handler_t	irqhandler,
		unsigned long	irqflags,
		void *	irq_dev_id
	)

Definition at line 162 of file dma.c.

Variable Documentation

spinlock_t au1000_dma_spin_lock

struct dma_chan au1000_dma_table[]

Definition at line 64 of file dma.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation