#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/bitops.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/semaphore.h>
#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
#include <linux/firmware.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/dmaengine.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <asm/irq.h>
#include <linux/platform_data/dma-imx-sdma.h>
#include <linux/platform_data/dma-imx.h>
#include <mach/hardware.h>
#include "dmaengine.h"

Data Structures
struct	sdma_mode_count

struct	sdma_buffer_descriptor

struct	sdma_channel_control

struct	sdma_state_registers

struct	sdma_context_data

struct	sdma_channel

struct	sdma_firmware_header

struct	sdma_engine

Macros
#define	SDMA_H_C0PTR 0x000

#define	SDMA_H_INTR 0x004

#define	SDMA_H_STATSTOP 0x008

#define	SDMA_H_START 0x00c

#define	SDMA_H_EVTOVR 0x010

#define	SDMA_H_DSPOVR 0x014

#define	SDMA_H_HOSTOVR 0x018

#define	SDMA_H_EVTPEND 0x01c

#define	SDMA_H_DSPENBL 0x020

#define	SDMA_H_RESET 0x024

#define	SDMA_H_EVTERR 0x028

#define	SDMA_H_INTRMSK 0x02c

#define	SDMA_H_PSW 0x030

#define	SDMA_H_EVTERRDBG 0x034

#define	SDMA_H_CONFIG 0x038

#define	SDMA_ONCE_ENB 0x040

#define	SDMA_ONCE_DATA 0x044

#define	SDMA_ONCE_INSTR 0x048

#define	SDMA_ONCE_STAT 0x04c

#define	SDMA_ONCE_CMD 0x050

#define	SDMA_EVT_MIRROR 0x054

#define	SDMA_ILLINSTADDR 0x058

#define	SDMA_CHN0ADDR 0x05c

#define	SDMA_ONCE_RTB 0x060

#define	SDMA_XTRIG_CONF1 0x070

#define	SDMA_XTRIG_CONF2 0x074

#define	SDMA_CHNENBL0_IMX35 0x200

#define	SDMA_CHNENBL0_IMX31 0x080

#define	SDMA_CHNPRI_0 0x100

#define	BD_DONE 0x01

#define	BD_WRAP 0x02

#define	BD_CONT 0x04

#define	BD_INTR 0x08

#define	BD_RROR 0x10

#define	BD_LAST 0x20

#define	BD_EXTD 0x80

#define	DND_END_OF_FRAME 0x80

#define	DND_END_OF_XFER 0x40

#define	DND_DONE 0x20

#define	DND_UNUSED 0x01

#define	BD_IPCV2_END_OF_FRAME 0x40

#define	IPCV2_MAX_NODES 50

#define	DATA_ERROR 0x10000000

#define	C0_ADDR 0x01

#define	C0_LOAD 0x02

#define	C0_DUMP 0x03

#define	C0_SETCTX 0x07

#define	C0_GETCTX 0x03

#define	C0_SETDM 0x01

#define	C0_SETPM 0x04

#define	C0_GETDM 0x02

#define	C0_GETPM 0x08

#define	CHANGE_ENDIANNESS 0x80

#define	NUM_BD (int)(PAGE_SIZE / sizeof(struct sdma_buffer_descriptor))

#define	IMX_DMA_SG_LOOP BIT(0)

#define	MAX_DMA_CHANNELS 32

#define	MXC_SDMA_DEFAULT_PRIORITY 1

#define	MXC_SDMA_MIN_PRIORITY 1

#define	MXC_SDMA_MAX_PRIORITY 7

#define	SDMA_FIRMWARE_MAGIC 0x414d4453

#define	SDMA_H_CONFIG_DSPDMA BIT(12) /* indicates if the DSPDMA is used */

#define	SDMA_H_CONFIG_RTD_PINS BIT(11) /* indicates if Real-Time Debug pins are enabled */

#define	SDMA_H_CONFIG_ACR BIT(4) /* indicates if AHB freq /core freq = 2 or 1 */

#define	SDMA_H_CONFIG_CSM (3) /* indicates which context switch mode is selected*/

#define	SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1 34

Enumerations
enum	sdma_devtype { IMX31_SDMA, IMX35_SDMA }

Functions
struct sdma_buffer_descriptor	__attribute__ ((packed))

	MODULE_DEVICE_TABLE (platform, sdma_devtypes)

	MODULE_DEVICE_TABLE (of, sdma_dt_ids)

	module_init (sdma_module_init)

	MODULE_AUTHOR ("Sascha Hauer, Pengutronix <[email protected]>")

	MODULE_DESCRIPTION ("i.MX SDMA driver")

	MODULE_LICENSE ("GPL")

Variables
struct sdma_mode_count	mode

u32	buffer_addr

u32	ext_buffer_addr

u32	current_bd_ptr

u32	base_bd_ptr

u32	unused [2]

u32	pc

u32	unused1

u32	t

u32	rpc

u32	unused0

u32	sf

u32	spc

u32	unused2

u32	df

u32	epc

u32	lm

struct sdma_state_registers	channel_state

u32	gReg [8]

u32	mda

u32	msa

u32	ms

u32	md

u32	pda

u32	psa

u32	ps

u32	pd

u32	ca

u32	cs

u32	dda

u32	dsa

u32	ds

u32	dd

u32	scratch0

u32	scratch1

u32	scratch2

u32	scratch3

u32	scratch4

u32	scratch5

u32	scratch6

u32	scratch7

struct sdma_channel	__attribute__

Macro Definition Documentation

#define BD_CONT 0x04

Definition at line 83 of file imx-sdma.c.

#define BD_DONE 0x01

Definition at line 81 of file imx-sdma.c.

#define BD_EXTD 0x80

Definition at line 87 of file imx-sdma.c.

#define BD_INTR 0x08

Definition at line 84 of file imx-sdma.c.

#define BD_IPCV2_END_OF_FRAME 0x40

Definition at line 100 of file imx-sdma.c.

#define BD_LAST 0x20

Definition at line 86 of file imx-sdma.c.

#define BD_RROR 0x10

Definition at line 85 of file imx-sdma.c.

#define BD_WRAP 0x02

Definition at line 82 of file imx-sdma.c.

#define C0_ADDR 0x01

Definition at line 112 of file imx-sdma.c.

#define C0_DUMP 0x03

Definition at line 114 of file imx-sdma.c.

#define C0_GETCTX 0x03

Definition at line 116 of file imx-sdma.c.

#define C0_GETDM 0x02

Definition at line 119 of file imx-sdma.c.

#define C0_GETPM 0x08

Definition at line 120 of file imx-sdma.c.

#define C0_LOAD 0x02

Definition at line 113 of file imx-sdma.c.

#define C0_SETCTX 0x07

Definition at line 115 of file imx-sdma.c.

#define C0_SETDM 0x01

Definition at line 117 of file imx-sdma.c.

#define C0_SETPM 0x04

Definition at line 118 of file imx-sdma.c.

#define CHANGE_ENDIANNESS 0x80

Definition at line 124 of file imx-sdma.c.

#define DATA_ERROR 0x10000000

Definition at line 107 of file imx-sdma.c.

#define DND_DONE 0x20

Definition at line 94 of file imx-sdma.c.

#define DND_END_OF_FRAME 0x80

Definition at line 92 of file imx-sdma.c.

#define DND_END_OF_XFER 0x40

Definition at line 93 of file imx-sdma.c.

#define DND_UNUSED 0x01

Definition at line 95 of file imx-sdma.c.

#define IMX_DMA_SG_LOOP BIT(0)

Definition at line 277 of file imx-sdma.c.

#define IPCV2_MAX_NODES 50

Definition at line 102 of file imx-sdma.c.

#define MAX_DMA_CHANNELS 32

Definition at line 279 of file imx-sdma.c.

#define MXC_SDMA_DEFAULT_PRIORITY 1

Definition at line 280 of file imx-sdma.c.

#define MXC_SDMA_MAX_PRIORITY 7

Definition at line 282 of file imx-sdma.c.

#define MXC_SDMA_MIN_PRIORITY 1

Definition at line 281 of file imx-sdma.c.

#define NUM_BD (int)(PAGE_SIZE / sizeof(struct sdma_buffer_descriptor))

Definition at line 231 of file imx-sdma.c.

#define SDMA_CHN0ADDR 0x05c

Definition at line 70 of file imx-sdma.c.

#define SDMA_CHNENBL0_IMX31 0x080

Definition at line 75 of file imx-sdma.c.

#define SDMA_CHNENBL0_IMX35 0x200

Definition at line 74 of file imx-sdma.c.

#define SDMA_CHNPRI_0 0x100

Definition at line 76 of file imx-sdma.c.

#define SDMA_EVT_MIRROR 0x054

Definition at line 68 of file imx-sdma.c.

#define SDMA_FIRMWARE_MAGIC 0x414d4453

Definition at line 284 of file imx-sdma.c.

#define SDMA_H_C0PTR 0x000

Definition at line 48 of file imx-sdma.c.

#define SDMA_H_CONFIG 0x038

Definition at line 62 of file imx-sdma.c.

#define SDMA_H_CONFIG_ACR BIT(4) /* indicates if AHB freq /core freq = 2 or 1 */

Definition at line 354 of file imx-sdma.c.

#define SDMA_H_CONFIG_CSM (3) /* indicates which context switch mode is selected*/

Definition at line 355 of file imx-sdma.c.

#define SDMA_H_CONFIG_DSPDMA BIT(12) /* indicates if the DSPDMA is used */

Definition at line 352 of file imx-sdma.c.

#define SDMA_H_CONFIG_RTD_PINS BIT(11) /* indicates if Real-Time Debug pins are enabled */

Definition at line 353 of file imx-sdma.c.

#define SDMA_H_DSPENBL 0x020

Definition at line 56 of file imx-sdma.c.

#define SDMA_H_DSPOVR 0x014

Definition at line 53 of file imx-sdma.c.

#define SDMA_H_EVTERR 0x028

Definition at line 58 of file imx-sdma.c.

#define SDMA_H_EVTERRDBG 0x034

Definition at line 61 of file imx-sdma.c.

#define SDMA_H_EVTOVR 0x010

Definition at line 52 of file imx-sdma.c.

#define SDMA_H_EVTPEND 0x01c

Definition at line 55 of file imx-sdma.c.

#define SDMA_H_HOSTOVR 0x018

Definition at line 54 of file imx-sdma.c.

#define SDMA_H_INTR 0x004

Definition at line 49 of file imx-sdma.c.

#define SDMA_H_INTRMSK 0x02c

Definition at line 59 of file imx-sdma.c.

#define SDMA_H_PSW 0x030

Definition at line 60 of file imx-sdma.c.

#define SDMA_H_RESET 0x024

Definition at line 57 of file imx-sdma.c.

#define SDMA_H_START 0x00c

Definition at line 51 of file imx-sdma.c.

#define SDMA_H_STATSTOP 0x008

Definition at line 50 of file imx-sdma.c.

#define SDMA_ILLINSTADDR 0x058

Definition at line 69 of file imx-sdma.c.

#define SDMA_ONCE_CMD 0x050

Definition at line 67 of file imx-sdma.c.

#define SDMA_ONCE_DATA 0x044

Definition at line 64 of file imx-sdma.c.

#define SDMA_ONCE_ENB 0x040

Definition at line 63 of file imx-sdma.c.

#define SDMA_ONCE_INSTR 0x048

Definition at line 65 of file imx-sdma.c.

#define SDMA_ONCE_RTB 0x060

Definition at line 71 of file imx-sdma.c.

#define SDMA_ONCE_STAT 0x04c

Definition at line 66 of file imx-sdma.c.

#define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1 34

Definition at line 1146 of file imx-sdma.c.

#define SDMA_XTRIG_CONF1 0x070

Definition at line 72 of file imx-sdma.c.

#define SDMA_XTRIG_CONF2 0x074

Definition at line 73 of file imx-sdma.c.

Enumeration Type Documentation

enum sdma_devtype

Enumerator:

IMX31_SDMA
IMX35_SDMA

Definition at line 310 of file imx-sdma.c.

Function Documentation

struct sdma_buffer_descriptor __attribute__ ( (packed) )

read

Definition at line 171 of file esd_usb2.c.

MODULE_AUTHOR	(	"Sascha	Hauer,
		Pengutronix< s.hauer @pengutronix.de >"
	)

MODULE_DESCRIPTION ( "i.MX SDMA driver" )

MODULE_DEVICE_TABLE	(	platform	,
		sdma_devtypes
	)

MODULE_DEVICE_TABLE	(	of	,
		sdma_dt_ids
	)

module_init ( sdma_module_init )

MODULE_LICENSE ( "GPL" )

Variable Documentation

struct sdma_channel __attribute__

u32 base_bd_ptr

Definition at line 158 of file imx-sdma.c.

u32 buffer_addr

Definition at line 144 of file imx-sdma.c.

u32 ca

Definition at line 240 of file imx-sdma.c.

struct sdma_state_registers channel_state

Definition at line 230 of file imx-sdma.c.

u32 cs

Definition at line 241 of file imx-sdma.c.

u32 current_bd_ptr

Definition at line 157 of file imx-sdma.c.

u32 dd

Definition at line 245 of file imx-sdma.c.

u32 dda

Definition at line 242 of file imx-sdma.c.

u32 df

Definition at line 191 of file imx-sdma.c.

u32 ds

Definition at line 244 of file imx-sdma.c.

u32 dsa

Definition at line 243 of file imx-sdma.c.

u32 epc

Definition at line 192 of file imx-sdma.c.

u32 ext_buffer_addr

Definition at line 145 of file imx-sdma.c.

u32 gReg[8]

Definition at line 231 of file imx-sdma.c.

u32 lm

Definition at line 193 of file imx-sdma.c.

u32 md

Definition at line 235 of file imx-sdma.c.

u32 mda

Definition at line 232 of file imx-sdma.c.

struct sdma_mode_count mode

Definition at line 143 of file imx-sdma.c.

u32 ms

Definition at line 234 of file imx-sdma.c.

u32 msa

Definition at line 233 of file imx-sdma.c.

u32 pc

Definition at line 183 of file imx-sdma.c.

struct megasas_evtarg_pd pd

Definition at line 239 of file imx-sdma.c.

u32 pda

Definition at line 236 of file imx-sdma.c.

struct path_state ps

Definition at line 238 of file imx-sdma.c.

u32 psa

Definition at line 237 of file imx-sdma.c.

u32 rpc

Definition at line 186 of file imx-sdma.c.

u32 scratch0

Definition at line 246 of file imx-sdma.c.

u32 scratch1

Definition at line 247 of file imx-sdma.c.

u32 scratch2

Definition at line 248 of file imx-sdma.c.

u32 scratch3

Definition at line 249 of file imx-sdma.c.

u32 scratch4

Definition at line 250 of file imx-sdma.c.

u32 scratch5

Definition at line 251 of file imx-sdma.c.

u32 scratch6

Definition at line 252 of file imx-sdma.c.

u32 scratch7

Definition at line 253 of file imx-sdma.c.

u32 sf

Definition at line 188 of file imx-sdma.c.

u32 spc

Definition at line 189 of file imx-sdma.c.

u32 t

Definition at line 185 of file imx-sdma.c.

u32 unused[2]

Definition at line 159 of file imx-sdma.c.

u32 unused0

Definition at line 187 of file imx-sdma.c.

u32 unused1

Definition at line 184 of file imx-sdma.c.

u32 unused2

Definition at line 190 of file imx-sdma.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation