#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <media/omap1_camera.h>
#include <media/soc_camera.h>
#include <media/soc_mediabus.h>
#include <media/videobuf-dma-contig.h>
#include <media/videobuf-dma-sg.h>
#include <plat/dma.h>

Data Structures
struct	omap1_cam_buf

struct	omap1_cam_dev

Macros
#define	DRIVER_NAME "omap1-camera"

#define	DRIVER_VERSION "0.0.2"

#define	REG_CTRLCLOCK 0x00

#define	REG_IT_STATUS 0x04

#define	REG_MODE 0x08

#define	REG_STATUS 0x0C

#define	REG_CAMDATA 0x10

#define	REG_GPIO 0x14

#define	REG_PEAK_COUNTER 0x18

#define	LCLK_EN BIT(7)

#define	DPLL_EN BIT(6)

#define	MCLK_EN BIT(5)

#define	CAMEXCLK_EN BIT(4)

#define	POLCLK BIT(3)

#define	FOSCMOD_SHIFT 0

#define	FOSCMOD_MASK (0x7 << FOSCMOD_SHIFT)

#define	FOSCMOD_12MHz 0x0

#define	FOSCMOD_6MHz 0x2

#define	FOSCMOD_9_6MHz 0x4

#define	FOSCMOD_24MHz 0x5

#define	FOSCMOD_8MHz 0x6

#define	DATA_TRANSFER BIT(5)

#define	FIFO_FULL BIT(4)

#define	H_DOWN BIT(3)

#define	H_UP BIT(2)

#define	V_DOWN BIT(1)

#define	V_UP BIT(0)

#define	RAZ_FIFO BIT(18)

#define	EN_FIFO_FULL BIT(17)

#define	EN_NIRQ BIT(16)

#define	THRESHOLD_SHIFT 9

#define	THRESHOLD_MASK (0x7f << THRESHOLD_SHIFT)

#define	DMA BIT(8)

#define	EN_H_DOWN BIT(7)

#define	EN_H_UP BIT(6)

#define	EN_V_DOWN BIT(5)

#define	EN_V_UP BIT(4)

#define	ORDERCAMD BIT(3)

#define	IRQ_MASK

#define	HSTATUS BIT(1)

#define	VSTATUS BIT(0)

#define	CAM_RST BIT(0)

#define	SOCAM_BUS_FLAGS

#define	FIFO_SIZE ((THRESHOLD_MASK >> THRESHOLD_SHIFT) + 1)

#define	FIFO_SHIFT __fls(FIFO_SIZE)

#define	DMA_BURST_SHIFT (1 + OMAP_DMA_DATA_BURST_4)

#define	DMA_BURST_SIZE (1 << DMA_BURST_SHIFT)

#define	DMA_ELEMENT_SHIFT OMAP_DMA_DATA_TYPE_S32

#define	DMA_ELEMENT_SIZE (1 << DMA_ELEMENT_SHIFT)

#define	DMA_FRAME_SHIFT_CONTIG (FIFO_SHIFT - 1)

#define	DMA_FRAME_SHIFT_SG DMA_BURST_SHIFT

#define	DMA_FRAME_SHIFT(x)

#define	DMA_FRAME_SIZE(x) (1 << DMA_FRAME_SHIFT(x))

#define	DMA_SYNC OMAP_DMA_SYNC_FRAME

#define	THRESHOLD_LEVEL DMA_FRAME_SIZE

#define	MAX_VIDEO_MEM 4 /* arbitrary video memory limit in MB */

#define	CAM_READ(pcdev, reg) cam_read(pcdev, REG_##reg, false)

#define	CAM_WRITE(pcdev, reg, val) cam_write(pcdev, REG_##reg, val)

#define	CAM_READ_CACHE(pcdev, reg) cam_read(pcdev, REG_##reg, true)

#define	subdev_call_with_sense(pcdev, dev, icd, sd, function, args...)

Functions
	module_platform_driver (omap1_cam_driver)

	module_param (sg_mode, bool, 0644)

	MODULE_PARM_DESC (sg_mode,"videobuf mode, 0: dma-contig (default), 1: dma-sg")

	MODULE_DESCRIPTION ("OMAP1 Camera Interface driver")

	MODULE_AUTHOR ("Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>")

	MODULE_LICENSE ("GPL v2")

	MODULE_VERSION (DRIVER_VERSION)

	MODULE_ALIAS ("platform:"DRIVER_NAME)

Macro Definition Documentation

#define CAM_READ	(	pcdev,
		reg
	)	cam_read(pcdev, REG_##reg, false)

Definition at line 195 of file omap1_camera.c.

#define CAM_READ_CACHE	(	pcdev,
		reg
	)	cam_read(pcdev, REG_##reg, true)

Definition at line 199 of file omap1_camera.c.

#define CAM_RST BIT(0)

Definition at line 101 of file omap1_camera.c.

#define CAM_WRITE	(	pcdev,
		reg,
		val
	)	cam_write(pcdev, REG_##reg, val)

Definition at line 197 of file omap1_camera.c.

#define CAMEXCLK_EN BIT(4)

Definition at line 62 of file omap1_camera.c.

#define DATA_TRANSFER BIT(5)

Definition at line 73 of file omap1_camera.c.

#define DMA BIT(8)

Definition at line 86 of file omap1_camera.c.

#define DMA_BURST_SHIFT (1 + OMAP_DMA_DATA_BURST_4)

Definition at line 115 of file omap1_camera.c.

#define DMA_BURST_SIZE (1 << DMA_BURST_SHIFT)

Definition at line 116 of file omap1_camera.c.

#define DMA_ELEMENT_SHIFT OMAP_DMA_DATA_TYPE_S32

Definition at line 118 of file omap1_camera.c.

#define DMA_ELEMENT_SIZE (1 << DMA_ELEMENT_SHIFT)

Definition at line 119 of file omap1_camera.c.

#define DMA_FRAME_SHIFT ( x )

Value:

((x) == OMAP1_CAM_DMA_CONTIG ? \
                        DMA_FRAME_SHIFT_CONTIG : \
                        DMA_FRAME_SHIFT_SG)

Definition at line 124 of file omap1_camera.c.

#define DMA_FRAME_SHIFT_CONTIG (FIFO_SHIFT - 1)

Definition at line 121 of file omap1_camera.c.

#define DMA_FRAME_SHIFT_SG DMA_BURST_SHIFT

Definition at line 122 of file omap1_camera.c.

#define DMA_FRAME_SIZE ( x ) (1 << DMA_FRAME_SHIFT(x))

Definition at line 127 of file omap1_camera.c.

#define DMA_SYNC OMAP_DMA_SYNC_FRAME

Definition at line 128 of file omap1_camera.c.

#define DPLL_EN BIT(6)

Definition at line 60 of file omap1_camera.c.

#define DRIVER_NAME "omap1-camera"

Definition at line 40 of file omap1_camera.c.

#define DRIVER_VERSION "0.0.2"

Definition at line 41 of file omap1_camera.c.

#define EN_FIFO_FULL BIT(17)

Definition at line 82 of file omap1_camera.c.

#define EN_H_DOWN BIT(7)

Definition at line 87 of file omap1_camera.c.

#define EN_H_UP BIT(6)

Definition at line 88 of file omap1_camera.c.

#define EN_NIRQ BIT(16)

Definition at line 83 of file omap1_camera.c.

#define EN_V_DOWN BIT(5)

Definition at line 89 of file omap1_camera.c.

#define EN_V_UP BIT(4)

Definition at line 90 of file omap1_camera.c.

#define FIFO_FULL BIT(4)

Definition at line 74 of file omap1_camera.c.

#define FIFO_SHIFT __fls(FIFO_SIZE)

Definition at line 113 of file omap1_camera.c.

#define FIFO_SIZE ((THRESHOLD_MASK >> THRESHOLD_SHIFT) + 1)

Definition at line 112 of file omap1_camera.c.

#define FOSCMOD_12MHz 0x0

Definition at line 66 of file omap1_camera.c.

#define FOSCMOD_24MHz 0x5

Definition at line 69 of file omap1_camera.c.

#define FOSCMOD_6MHz 0x2

Definition at line 67 of file omap1_camera.c.

#define FOSCMOD_8MHz 0x6

Definition at line 70 of file omap1_camera.c.

#define FOSCMOD_9_6MHz 0x4

Definition at line 68 of file omap1_camera.c.

#define FOSCMOD_MASK (0x7 << FOSCMOD_SHIFT)

Definition at line 65 of file omap1_camera.c.

#define FOSCMOD_SHIFT 0

Definition at line 64 of file omap1_camera.c.

#define H_DOWN BIT(3)

Definition at line 75 of file omap1_camera.c.

#define H_UP BIT(2)

Definition at line 76 of file omap1_camera.c.

#define HSTATUS BIT(1)

Definition at line 97 of file omap1_camera.c.

#define IRQ_MASK

Value:

(EN_V_UP | EN_V_DOWN | EN_H_UP | EN_H_DOWN | \

EN_NIRQ | EN_FIFO_FULL)

Definition at line 93 of file omap1_camera.c.

#define LCLK_EN BIT(7)

Definition at line 59 of file omap1_camera.c.

#define MAX_VIDEO_MEM 4 /* arbitrary video memory limit in MB */

Definition at line 132 of file omap1_camera.c.

#define MCLK_EN BIT(5)

Definition at line 61 of file omap1_camera.c.

#define ORDERCAMD BIT(3)

Definition at line 91 of file omap1_camera.c.

#define POLCLK BIT(3)

Definition at line 63 of file omap1_camera.c.

#define RAZ_FIFO BIT(18)

Definition at line 81 of file omap1_camera.c.

#define REG_CAMDATA 0x10

Definition at line 54 of file omap1_camera.c.

#define REG_CTRLCLOCK 0x00

Definition at line 50 of file omap1_camera.c.

#define REG_GPIO 0x14

Definition at line 55 of file omap1_camera.c.

#define REG_IT_STATUS 0x04

Definition at line 51 of file omap1_camera.c.

#define REG_MODE 0x08

Definition at line 52 of file omap1_camera.c.

#define REG_PEAK_COUNTER 0x18

Definition at line 56 of file omap1_camera.c.

#define REG_STATUS 0x0C

Definition at line 53 of file omap1_camera.c.

#define SOCAM_BUS_FLAGS

Value:

(V4L2_MBUS_MASTER | \
            V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH | \
            V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING | \
            V4L2_MBUS_DATA_ACTIVE_HIGH)

Definition at line 106 of file omap1_camera.c.

#define subdev_call_with_sense	(	pcdev,
		dev,
		icd,
		sd,
		function,
		args...
	)

Value:

({                                           \
	struct soc_camera_sense sense = {                       \
        .master_clock       = pcdev->camexclk,               \
        .pixel_clock_max    = 0,                         \
    };                                       \
    int __ret;                                   \
										     \
	if (pcdev->pdata)                               \
        sense.pixel_clock_max = pcdev->pdata->lclk_khz_max * 1000;       \
    icd->sense = &sense;                                 \
    __ret = v4l2_subdev_call(sd, video, function, ##args);               \
    icd->sense = NULL;                               \
										     \
	if (sense.flags & SOCAM_SENSE_PCLK_CHANGED) {                   \
        if (sense.pixel_clock > sense.pixel_clock_max) {             \
            dev_err(dev,                             \
                "%s: pixel clock %lu set by the camera too high!\n", \
                __func__, sense.pixel_clock);                \
            __ret = -EINVAL;                         \
        }                                    \
    }                                        \
    __ret;                                       \
})

Definition at line 1159 of file omap1_camera.c.

#define THRESHOLD_LEVEL DMA_FRAME_SIZE

Definition at line 129 of file omap1_camera.c.

#define THRESHOLD_MASK (0x7f << THRESHOLD_SHIFT)

Definition at line 85 of file omap1_camera.c.

#define THRESHOLD_SHIFT 9

Definition at line 84 of file omap1_camera.c.

#define V_DOWN BIT(1)

Definition at line 77 of file omap1_camera.c.

#define V_UP BIT(0)

Definition at line 78 of file omap1_camera.c.

#define VSTATUS BIT(0)

Definition at line 98 of file omap1_camera.c.

Function Documentation

MODULE_ALIAS ( "platform:" DRIVER_NAME )

MODULE_AUTHOR ( "Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>" )

MODULE_DESCRIPTION ( "OMAP1 Camera Interface driver" )

MODULE_LICENSE ( "GPL v2" )

module_param	(	sg_mode	,
		bool	,
		0644
	)

MODULE_PARM_DESC	(	sg_mode	,
		"videobuf	mode,
		0:dma-	contigdefault,
		1:dma-sg"
	)

module_platform_driver ( omap1_cam_driver )

MODULE_VERSION ( DRIVER_VERSION )

Data Structures

Macros

Functions

Macro Definition Documentation

Function Documentation