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Commit cf9211e8 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[media] ov519: convert to the control framework 



Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent a17dd1eb

drivers/media/video/gspca/ov519.c

+265 −334
Original line number Diff line number Diff line
@@ -60,25 +60,20 @@ static int frame_rate; 
 * are getting "Failed to read sensor ID..." */

static int i2c_detect_tries = 10;



/* controls */

enum e_ctrl {

	BRIGHTNESS,

	CONTRAST,

	EXPOSURE,

	COLORS,

	HFLIP,

	VFLIP,

	AUTOBRIGHT,

	AUTOGAIN,

	FREQ,

	NCTRL		/* number of controls */

};



/* ov519 device descriptor */

struct sd {

	struct gspca_dev gspca_dev;		/* !! must be the first item */



	struct gspca_ctrl ctrls[NCTRL];

	struct v4l2_ctrl *jpegqual;

	struct v4l2_ctrl *freq;

	struct { /* h/vflip control cluster */

		struct v4l2_ctrl *hflip;

		struct v4l2_ctrl *vflip;

	};

	struct { /* autobrightness/brightness control cluster */

		struct v4l2_ctrl *autobright;

		struct v4l2_ctrl *brightness;

	};



	u8 packet_nr;
@@ -101,7 +96,6 @@ struct sd { 
	/* Determined by sensor type */

	u8 sif;



	u8 quality;

#define QUALITY_MIN 50

#define QUALITY_MAX 70

#define QUALITY_DEF 50
@@ -145,211 +139,114 @@ enum sensors { 
   really should move the sensor drivers to v4l2 sub drivers. */

#include "w996Xcf.c"



/* V4L2 controls supported by the driver */

static void setbrightness(struct gspca_dev *gspca_dev);

static void setcontrast(struct gspca_dev *gspca_dev);

static void setexposure(struct gspca_dev *gspca_dev);

static void setcolors(struct gspca_dev *gspca_dev);

static void sethvflip(struct gspca_dev *gspca_dev);

static void setautobright(struct gspca_dev *gspca_dev);

static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);

static void setfreq(struct gspca_dev *gspca_dev);

static void setfreq_i(struct sd *sd);



static const struct ctrl sd_ctrls[] = {

[BRIGHTNESS] = {

	    {

		.id      = V4L2_CID_BRIGHTNESS,

		.type    = V4L2_CTRL_TYPE_INTEGER,

		.name    = "Brightness",

		.minimum = 0,

		.maximum = 255,

		.step    = 1,

		.default_value = 127,

	    },

	    .set_control = setbrightness,

	},

[CONTRAST] = {

	    {

		.id      = V4L2_CID_CONTRAST,

		.type    = V4L2_CTRL_TYPE_INTEGER,

		.name    = "Contrast",

		.minimum = 0,

		.maximum = 255,

		.step    = 1,

		.default_value = 127,

/* table of the disabled controls */

struct ctrl_valid {

	int has_brightness:1;

	int has_contrast:1;

	int has_exposure:1;

	int has_autogain:1;

	int has_sat:1;

	int has_hvflip:1;

	int has_autobright:1;

	int has_freq:1;

};



static const struct ctrl_valid valid_controls[] = {

	[SEN_OV2610] = {

		.has_exposure = 1,

		.has_autogain = 1,

	},

	    .set_control = setcontrast,

	[SEN_OV2610AE] = {

		.has_exposure = 1,

		.has_autogain = 1,

	},

[EXPOSURE] = {

	    {

		.id      = V4L2_CID_EXPOSURE,

		.type    = V4L2_CTRL_TYPE_INTEGER,

		.name    = "Exposure",

		.minimum = 0,

		.maximum = 255,

		.step    = 1,

		.default_value = 127,

	[SEN_OV3610] = {

		/* No controls */

	},

	    .set_control = setexposure,

	[SEN_OV6620] = {

		.has_brightness = 1,

		.has_contrast = 1,

		.has_sat = 1,

		.has_autobright = 1,

		.has_freq = 1,

	},

[COLORS] = {

	    {

		.id      = V4L2_CID_SATURATION,

		.type    = V4L2_CTRL_TYPE_INTEGER,

		.name    = "Color",

		.minimum = 0,

		.maximum = 255,

		.step    = 1,

		.default_value = 127,

	[SEN_OV6630] = {

		.has_brightness = 1,

		.has_contrast = 1,

		.has_sat = 1,

		.has_autobright = 1,

		.has_freq = 1,

	},

	    .set_control = setcolors,

	[SEN_OV66308AF] = {

		.has_brightness = 1,

		.has_contrast = 1,

		.has_sat = 1,

		.has_autobright = 1,

		.has_freq = 1,

	},

/* The flip controls work for sensors ov7660 and ov7670 only */

[HFLIP] = {

	    {

		.id      = V4L2_CID_HFLIP,

		.type    = V4L2_CTRL_TYPE_BOOLEAN,

		.name    = "Mirror",

		.minimum = 0,

		.maximum = 1,

		.step    = 1,

		.default_value = 0,

	[SEN_OV7610] = {

		.has_brightness = 1,

		.has_contrast = 1,

		.has_sat = 1,

		.has_autobright = 1,

		.has_freq = 1,

	},

	    .set_control = sethvflip,

	[SEN_OV7620] = {

		.has_brightness = 1,

		.has_contrast = 1,

		.has_sat = 1,

		.has_autobright = 1,

		.has_freq = 1,

	},

[VFLIP] = {

	    {

		.id      = V4L2_CID_VFLIP,

		.type    = V4L2_CTRL_TYPE_BOOLEAN,

		.name    = "Vflip",

		.minimum = 0,

		.maximum = 1,

		.step    = 1,

		.default_value = 0,

	[SEN_OV7620AE] = {

		.has_brightness = 1,

		.has_contrast = 1,

		.has_sat = 1,

		.has_autobright = 1,

		.has_freq = 1,

	},

	    .set_control = sethvflip,

	[SEN_OV7640] = {

		.has_brightness = 1,

		.has_sat = 1,

		.has_freq = 1,

	},

[AUTOBRIGHT] = {

	    {

		.id      = V4L2_CID_AUTOBRIGHTNESS,

		.type    = V4L2_CTRL_TYPE_BOOLEAN,

		.name    = "Auto Brightness",

		.minimum = 0,

		.maximum = 1,

		.step    = 1,

		.default_value = 1,

	[SEN_OV7648] = {

		.has_brightness = 1,

		.has_sat = 1,

		.has_freq = 1,

	},

	    .set_control = setautobright,

	[SEN_OV7660] = {

		.has_brightness = 1,

		.has_contrast = 1,

		.has_sat = 1,

		.has_hvflip = 1,

		.has_freq = 1,

	},

[AUTOGAIN] = {

	    {

		.id      = V4L2_CID_AUTOGAIN,

		.type    = V4L2_CTRL_TYPE_BOOLEAN,

		.name    = "Auto Gain",

		.minimum = 0,

		.maximum = 1,

		.step    = 1,

		.default_value = 1,

		.flags	 = V4L2_CTRL_FLAG_UPDATE

	[SEN_OV7670] = {

		.has_brightness = 1,

		.has_contrast = 1,

		.has_hvflip = 1,

		.has_freq = 1,

	},

	    .set = sd_setautogain,

	[SEN_OV76BE] = {

		.has_brightness = 1,

		.has_contrast = 1,

		.has_sat = 1,

		.has_autobright = 1,

		.has_freq = 1,

	},

[FREQ] = {

	    {

		.id	 = V4L2_CID_POWER_LINE_FREQUENCY,

		.type    = V4L2_CTRL_TYPE_MENU,

		.name    = "Light frequency filter",

		.minimum = 0,

		.maximum = 2,	/* 0: no flicker, 1: 50Hz, 2:60Hz, 3: auto */

		.step    = 1,

		.default_value = 0,

	[SEN_OV8610] = {

		.has_brightness = 1,

		.has_contrast = 1,

		.has_sat = 1,

		.has_autobright = 1,

	},

	    .set_control = setfreq,

	[SEN_OV9600] = {

		.has_exposure = 1,

		.has_autogain = 1,

	},

};



/* table of the disabled controls */

static const unsigned ctrl_dis[] = {

[SEN_OV2610] =		((1 << NCTRL) - 1)	/* no control */

			^ ((1 << EXPOSURE)	/* but exposure */

			 | (1 << AUTOGAIN)),	/* and autogain */



[SEN_OV2610AE] =	((1 << NCTRL) - 1)	/* no control */

			^ ((1 << EXPOSURE)	/* but exposure */

			 | (1 << AUTOGAIN)),	/* and autogain */



[SEN_OV3610] =		(1 << NCTRL) - 1,	/* no control */



[SEN_OV6620] =		(1 << HFLIP) |

			(1 << VFLIP) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN),



[SEN_OV6630] =		(1 << HFLIP) |

			(1 << VFLIP) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN),



[SEN_OV66308AF] =	(1 << HFLIP) |

			(1 << VFLIP) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN),



[SEN_OV7610] =		(1 << HFLIP) |

			(1 << VFLIP) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN),



[SEN_OV7620] =		(1 << HFLIP) |

			(1 << VFLIP) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN),



[SEN_OV7620AE] =	(1 << HFLIP) |

			(1 << VFLIP) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN),



[SEN_OV7640] =		(1 << HFLIP) |

			(1 << VFLIP) |

			(1 << AUTOBRIGHT) |

			(1 << CONTRAST) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN),



[SEN_OV7648] =		(1 << HFLIP) |

			(1 << VFLIP) |

			(1 << AUTOBRIGHT) |

			(1 << CONTRAST) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN),



[SEN_OV7660] =		(1 << AUTOBRIGHT) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN),



[SEN_OV7670] =		(1 << COLORS) |

			(1 << AUTOBRIGHT) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN),



[SEN_OV76BE] =		(1 << HFLIP) |

			(1 << VFLIP) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN),



[SEN_OV8610] =		(1 << HFLIP) |

			(1 << VFLIP) |

			(1 << EXPOSURE) |

			(1 << AUTOGAIN) |

			(1 << FREQ),

[SEN_OV9600] =		((1 << NCTRL) - 1)	/* no control */

			^ ((1 << EXPOSURE)	/* but exposure */

			 | (1 << AUTOGAIN)),	/* and autogain */



};



static const struct v4l2_pix_format ov519_vga_mode[] = {

	{320, 240, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,

		.bytesperline = 320,
@@ -3306,11 +3203,11 @@ static void ov519_set_fr(struct sd *sd) 
	ov518_i2c_w(sd, OV7670_R11_CLKRC, clock);

}



static void setautogain(struct gspca_dev *gspca_dev)

static void setautogain(struct gspca_dev *gspca_dev, s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;



	i2c_w_mask(sd, 0x13, sd->ctrls[AUTOGAIN].val ? 0x05 : 0x00, 0x05);

	i2c_w_mask(sd, 0x13, val ? 0x05 : 0x00, 0x05);

}



/* this function is called at probe time */
@@ -3351,8 +3248,6 @@ static int sd_config(struct gspca_dev *gspca_dev, 
		break;

	}



	gspca_dev->cam.ctrls = sd->ctrls;

	sd->quality = QUALITY_DEF;

	sd->frame_rate = 15;



	return 0;
@@ -3467,8 +3362,6 @@ static int sd_init(struct gspca_dev *gspca_dev) 
		break;

	}



	gspca_dev->ctrl_dis = ctrl_dis[sd->sensor];



	/* initialize the sensor */

	switch (sd->sensor) {

	case SEN_OV2610:
@@ -3494,8 +3387,6 @@ static int sd_init(struct gspca_dev *gspca_dev) 
		break;

	case SEN_OV6630:

	case SEN_OV66308AF:

		sd->ctrls[CONTRAST].def = 200;

				 /* The default is too low for the ov6630 */

		write_i2c_regvals(sd, norm_6x30, ARRAY_SIZE(norm_6x30));

		break;

	default:
@@ -3522,26 +3413,12 @@ static int sd_init(struct gspca_dev *gspca_dev) 
		sd->gspca_dev.curr_mode = 1;	/* 640x480 */

		ov519_set_mode(sd);

		ov519_set_fr(sd);

		sd->ctrls[COLORS].max = 4;	/* 0..4 */

		sd->ctrls[COLORS].val =

			sd->ctrls[COLORS].def = 2;

		setcolors(gspca_dev);

		sd->ctrls[CONTRAST].max = 6;	/* 0..6 */

		sd->ctrls[CONTRAST].val =

			sd->ctrls[CONTRAST].def = 3;

		setcontrast(gspca_dev);

		sd->ctrls[BRIGHTNESS].max = 6;	/* 0..6 */

		sd->ctrls[BRIGHTNESS].val =

			sd->ctrls[BRIGHTNESS].def = 3;

		setbrightness(gspca_dev);

		sd_reset_snapshot(gspca_dev);

		ov51x_restart(sd);

		ov51x_stop(sd);			/* not in win traces */

		ov51x_led_control(sd, 0);

		break;

	case SEN_OV7670:

		sd->ctrls[FREQ].max = 3;	/* auto */

		sd->ctrls[FREQ].def = 3;

		write_i2c_regvals(sd, norm_7670, ARRAY_SIZE(norm_7670));

		break;

	case SEN_OV8610:
@@ -4177,15 +4054,14 @@ static void mode_init_ov_sensor_regs(struct sd *sd) 
}



/* this function works for bridge ov519 and sensors ov7660 and ov7670 only */

static void sethvflip(struct gspca_dev *gspca_dev)

static void sethvflip(struct gspca_dev *gspca_dev, s32 hflip, s32 vflip)

{

	struct sd *sd = (struct sd *) gspca_dev;



	if (sd->gspca_dev.streaming)

		reg_w(sd, OV519_R51_RESET1, 0x0f);	/* block stream */

	i2c_w_mask(sd, OV7670_R1E_MVFP,

		OV7670_MVFP_MIRROR * sd->ctrls[HFLIP].val

			| OV7670_MVFP_VFLIP * sd->ctrls[VFLIP].val,

		OV7670_MVFP_MIRROR * hflip | OV7670_MVFP_VFLIP * vflip,

		OV7670_MVFP_MIRROR | OV7670_MVFP_VFLIP);

	if (sd->gspca_dev.streaming)

		reg_w(sd, OV519_R51_RESET1, 0x00);	/* restart stream */
@@ -4333,22 +4209,7 @@ static int sd_start(struct gspca_dev *gspca_dev) 


	set_ov_sensor_window(sd);



	if (!(sd->gspca_dev.ctrl_dis & (1 << CONTRAST)))

		setcontrast(gspca_dev);

	if (!(sd->gspca_dev.ctrl_dis & (1 << BRIGHTNESS)))

		setbrightness(gspca_dev);

	if (!(sd->gspca_dev.ctrl_dis & (1 << EXPOSURE)))

		setexposure(gspca_dev);

	if (!(sd->gspca_dev.ctrl_dis & (1 << COLORS)))

		setcolors(gspca_dev);

	if (!(sd->gspca_dev.ctrl_dis & ((1 << HFLIP) | (1 << VFLIP))))

		sethvflip(gspca_dev);

	if (!(sd->gspca_dev.ctrl_dis & (1 << AUTOBRIGHT)))

		setautobright(gspca_dev);

	if (!(sd->gspca_dev.ctrl_dis & (1 << AUTOGAIN)))

		setautogain(gspca_dev);

	if (!(sd->gspca_dev.ctrl_dis & (1 << FREQ)))

		setfreq_i(sd);

	v4l2_ctrl_handler_setup(&gspca_dev->ctrl_handler);



	/* Force clear snapshot state in case the snapshot button was

	   pressed while we weren't streaming */
@@ -4605,10 +4466,9 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, 


/* -- management routines -- */



static void setbrightness(struct gspca_dev *gspca_dev)

static void setbrightness(struct gspca_dev *gspca_dev, s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;

	int val;

	static const struct ov_i2c_regvals brit_7660[][7] = {

		{{0x0f, 0x6a}, {0x24, 0x40}, {0x25, 0x2b}, {0x26, 0x90},

			{0x27, 0xe0}, {0x28, 0xe0}, {0x2c, 0xe0}},
@@ -4626,7 +4486,6 @@ static void setbrightness(struct gspca_dev *gspca_dev) 
			{0x27, 0x60}, {0x28, 0x60}, {0x2c, 0x60}}

	};



	val = sd->ctrls[BRIGHTNESS].val;

	switch (sd->sensor) {

	case SEN_OV8610:

	case SEN_OV7610:
@@ -4640,8 +4499,6 @@ static void setbrightness(struct gspca_dev *gspca_dev) 
		break;

	case SEN_OV7620:

	case SEN_OV7620AE:

		/* 7620 doesn't like manual changes when in auto mode */

		if (!sd->ctrls[AUTOBRIGHT].val)

		i2c_w(sd, OV7610_REG_BRT, val);

		break;

	case SEN_OV7660:
@@ -4656,10 +4513,9 @@ static void setbrightness(struct gspca_dev *gspca_dev) 
	}

}



static void setcontrast(struct gspca_dev *gspca_dev)

static void setcontrast(struct gspca_dev *gspca_dev, s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;

	int val;

	static const struct ov_i2c_regvals contrast_7660[][31] = {

		{{0x6c, 0xf0}, {0x6d, 0xf0}, {0x6e, 0xf8}, {0x6f, 0xa0},

		 {0x70, 0x58}, {0x71, 0x38}, {0x72, 0x30}, {0x73, 0x30},
@@ -4719,7 +4575,6 @@ static void setcontrast(struct gspca_dev *gspca_dev) 
		 {0x88, 0xf1}, {0x89, 0xf9}, {0x8a, 0xfd}},

	};



	val = sd->ctrls[CONTRAST].val;

	switch (sd->sensor) {

	case SEN_OV7610:

	case SEN_OV6620:
@@ -4760,18 +4615,16 @@ static void setcontrast(struct gspca_dev *gspca_dev) 
	}

}



static void setexposure(struct gspca_dev *gspca_dev)

static void setexposure(struct gspca_dev *gspca_dev, s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;



	if (!sd->ctrls[AUTOGAIN].val)

		i2c_w(sd, 0x10, sd->ctrls[EXPOSURE].val);

	i2c_w(sd, 0x10, val);

}



static void setcolors(struct gspca_dev *gspca_dev)

static void setcolors(struct gspca_dev *gspca_dev, s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;

	int val;

	static const struct ov_i2c_regvals colors_7660[][6] = {

		{{0x4f, 0x28}, {0x50, 0x2a}, {0x51, 0x02}, {0x52, 0x0a},

		 {0x53, 0x19}, {0x54, 0x23}},
@@ -4785,7 +4638,6 @@ static void setcolors(struct gspca_dev *gspca_dev) 
		 {0x53, 0x66}, {0x54, 0x8e}},

	};



	val = sd->ctrls[COLORS].val;

	switch (sd->sensor) {

	case SEN_OV8610:

	case SEN_OV7610:
@@ -4819,34 +4671,18 @@ static void setcolors(struct gspca_dev *gspca_dev) 
	}

}



static void setautobright(struct gspca_dev *gspca_dev)

static void setautobright(struct gspca_dev *gspca_dev, s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;



	i2c_w_mask(sd, 0x2d, sd->ctrls[AUTOBRIGHT].val ? 0x10 : 0x00, 0x10);

	i2c_w_mask(sd, 0x2d, val ? 0x10 : 0x00, 0x10);

}



static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;



	sd->ctrls[AUTOGAIN].val = val;

	if (val) {

		gspca_dev->ctrl_inac |= (1 << EXPOSURE);

	} else {

		gspca_dev->ctrl_inac &= ~(1 << EXPOSURE);

		sd->ctrls[EXPOSURE].val = i2c_r(sd, 0x10);

	}

	if (gspca_dev->streaming)

		setautogain(gspca_dev);

	return gspca_dev->usb_err;

}



static void setfreq_i(struct sd *sd)

static void setfreq_i(struct sd *sd, s32 val)

{

	if (sd->sensor == SEN_OV7660

	 || sd->sensor == SEN_OV7670) {

		switch (sd->ctrls[FREQ].val) {

		switch (val) {

		case 0: /* Banding filter disabled */

			i2c_w_mask(sd, OV7670_R13_COM8, 0, OV7670_COM8_BFILT);

			break;
@@ -4868,7 +4704,7 @@ static void setfreq_i(struct sd *sd) 
			break;

		}

	} else {

		switch (sd->ctrls[FREQ].val) {

		switch (val) {

		case 0: /* Banding filter disabled */

			i2c_w_mask(sd, 0x2d, 0x00, 0x04);

			i2c_w_mask(sd, 0x2a, 0x00, 0x80);
@@ -4900,56 +4736,28 @@ static void setfreq_i(struct sd *sd) 
		}

	}

}

static void setfreq(struct gspca_dev *gspca_dev)



static void setfreq(struct gspca_dev *gspca_dev, s32 val)

{

	struct sd *sd = (struct sd *) gspca_dev;



	setfreq_i(sd);

	setfreq_i(sd, val);



	/* Ugly but necessary */

	if (sd->bridge == BRIDGE_W9968CF)

		w9968cf_set_crop_window(sd);

}



static int sd_querymenu(struct gspca_dev *gspca_dev,

			struct v4l2_querymenu *menu)

{

	struct sd *sd = (struct sd *) gspca_dev;



	switch (menu->id) {

	case V4L2_CID_POWER_LINE_FREQUENCY:

		switch (menu->index) {

		case 0:		/* V4L2_CID_POWER_LINE_FREQUENCY_DISABLED */

			strcpy((char *) menu->name, "NoFliker");

			return 0;

		case 1:		/* V4L2_CID_POWER_LINE_FREQUENCY_50HZ */

			strcpy((char *) menu->name, "50 Hz");

			return 0;

		case 2:		/* V4L2_CID_POWER_LINE_FREQUENCY_60HZ */

			strcpy((char *) menu->name, "60 Hz");

			return 0;

		case 3:

			if (sd->sensor != SEN_OV7670)

				return -EINVAL;



			strcpy((char *) menu->name, "Automatic");

			return 0;

		}

		break;

	}

	return -EINVAL;

}



static int sd_get_jcomp(struct gspca_dev *gspca_dev,

			struct v4l2_jpegcompression *jcomp)

{

	struct sd *sd = (struct sd *) gspca_dev;



	if (sd->bridge != BRIDGE_W9968CF)

		return -EINVAL;

		return -ENOTTY;



	memset(jcomp, 0, sizeof *jcomp);

	jcomp->quality = sd->quality;

	jcomp->quality = v4l2_ctrl_g_ctrl(sd->jpegqual);

	jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT | V4L2_JPEG_MARKER_DQT |

			      V4L2_JPEG_MARKER_DRI;

	return 0;
@@ -4961,38 +4769,161 @@ static int sd_set_jcomp(struct gspca_dev *gspca_dev, 
	struct sd *sd = (struct sd *) gspca_dev;



	if (sd->bridge != BRIDGE_W9968CF)

		return -EINVAL;

		return -ENOTTY;



	if (gspca_dev->streaming)

		return -EBUSY;

	v4l2_ctrl_s_ctrl(sd->jpegqual, jcomp->quality);

	return 0;

}



	if (jcomp->quality < QUALITY_MIN)

		sd->quality = QUALITY_MIN;

	else if (jcomp->quality > QUALITY_MAX)

		sd->quality = QUALITY_MAX;

	else

		sd->quality = jcomp->quality;

static int sd_g_volatile_ctrl(struct v4l2_ctrl *ctrl)

{

	struct gspca_dev *gspca_dev =

		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);

	struct sd *sd = (struct sd *)gspca_dev;



	/* Return resulting jcomp params to app */

	sd_get_jcomp(gspca_dev, jcomp);

	gspca_dev->usb_err = 0;



	switch (ctrl->id) {

	case V4L2_CID_AUTOGAIN:

		gspca_dev->exposure->val = i2c_r(sd, 0x10);

		break;

	}

	return 0;

}



static int sd_s_ctrl(struct v4l2_ctrl *ctrl)

{

	struct gspca_dev *gspca_dev =

		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);

	struct sd *sd = (struct sd *)gspca_dev;



	gspca_dev->usb_err = 0;



	if (!gspca_dev->streaming)

		return 0;



	switch (ctrl->id) {

	case V4L2_CID_BRIGHTNESS:

		setbrightness(gspca_dev, ctrl->val);

		break;

	case V4L2_CID_CONTRAST:

		setcontrast(gspca_dev, ctrl->val);

		break;

	case V4L2_CID_POWER_LINE_FREQUENCY:

		setfreq(gspca_dev, ctrl->val);

		break;

	case V4L2_CID_AUTOBRIGHTNESS:

		if (ctrl->is_new)

			setautobright(gspca_dev, ctrl->val);

		if (!ctrl->val && sd->brightness->is_new)

			setbrightness(gspca_dev, sd->brightness->val);

		break;

	case V4L2_CID_SATURATION:

		setcolors(gspca_dev, ctrl->val);

		break;

	case V4L2_CID_HFLIP:

		sethvflip(gspca_dev, ctrl->val, sd->vflip->val);

		break;

	case V4L2_CID_AUTOGAIN:

		if (ctrl->is_new)

			setautogain(gspca_dev, ctrl->val);

		if (!ctrl->val && gspca_dev->exposure->is_new)

			setexposure(gspca_dev, gspca_dev->exposure->val);

		break;

	case V4L2_CID_JPEG_COMPRESSION_QUALITY:

		return -EBUSY; /* Should never happen, as we grab the ctrl */

	}

	return gspca_dev->usb_err;

}



static const struct v4l2_ctrl_ops sd_ctrl_ops = {

	.g_volatile_ctrl = sd_g_volatile_ctrl,

	.s_ctrl = sd_s_ctrl,

};



static int sd_init_controls(struct gspca_dev *gspca_dev)

{

	struct sd *sd = (struct sd *)gspca_dev;

	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;



	gspca_dev->vdev.ctrl_handler = hdl;

	v4l2_ctrl_handler_init(hdl, 10);

	if (valid_controls[sd->sensor].has_brightness)

		sd->brightness = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_BRIGHTNESS, 0,

			sd->sensor == SEN_OV7660 ? 6 : 255, 1,

			sd->sensor == SEN_OV7660 ? 3 : 127);

	if (valid_controls[sd->sensor].has_contrast) {

		if (sd->sensor == SEN_OV7660)

			v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

				V4L2_CID_CONTRAST, 0, 6, 1, 3);

		else

			v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

				V4L2_CID_CONTRAST, 0, 255, 1,

				(sd->sensor == SEN_OV6630 ||

				 sd->sensor == SEN_OV66308AF) ? 200 : 127);

	}

	if (valid_controls[sd->sensor].has_sat)

		v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_SATURATION, 0,

			sd->sensor == SEN_OV7660 ? 4 : 255, 1,

			sd->sensor == SEN_OV7660 ? 2 : 127);

	if (valid_controls[sd->sensor].has_exposure)

		gspca_dev->exposure = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_EXPOSURE, 0, 255, 1, 127);

	if (valid_controls[sd->sensor].has_hvflip) {

		sd->hflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_HFLIP, 0, 1, 1, 0);

		sd->vflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_VFLIP, 0, 1, 1, 0);

	}

	if (valid_controls[sd->sensor].has_autobright)

		sd->autobright = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_AUTOBRIGHTNESS, 0, 1, 1, 1);

	if (valid_controls[sd->sensor].has_autogain)

		gspca_dev->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_AUTOGAIN, 0, 1, 1, 1);

	if (valid_controls[sd->sensor].has_freq) {

		if (sd->sensor == SEN_OV7670)

			sd->freq = v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,

				V4L2_CID_POWER_LINE_FREQUENCY,

				V4L2_CID_POWER_LINE_FREQUENCY_AUTO, 0,

				V4L2_CID_POWER_LINE_FREQUENCY_AUTO);

		else

			sd->freq = v4l2_ctrl_new_std_menu(hdl, &sd_ctrl_ops,

				V4L2_CID_POWER_LINE_FREQUENCY,

				V4L2_CID_POWER_LINE_FREQUENCY_60HZ, 0, 0);

	}

	if (sd->bridge == BRIDGE_W9968CF)

		sd->jpegqual = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops,

			V4L2_CID_JPEG_COMPRESSION_QUALITY,

			QUALITY_MIN, QUALITY_MAX, 1, QUALITY_DEF);



	if (hdl->error) {

		pr_err("Could not initialize controls\n");

		return hdl->error;

	}

	if (gspca_dev->autogain)

		v4l2_ctrl_auto_cluster(3, &gspca_dev->autogain, 0, true);

	if (sd->autobright)

		v4l2_ctrl_auto_cluster(2, &sd->autobright, 0, false);

	if (sd->hflip)

		v4l2_ctrl_cluster(2, &sd->hflip);

	return 0;

}



/* sub-driver description */

static const struct sd_desc sd_desc = {

	.name = MODULE_NAME,

	.ctrls = sd_ctrls,

	.nctrls = ARRAY_SIZE(sd_ctrls),

	.config = sd_config,

	.init = sd_init,

	.init_controls = sd_init_controls,

	.isoc_init = sd_isoc_init,

	.start = sd_start,

	.stopN = sd_stopN,

	.stop0 = sd_stop0,

	.pkt_scan = sd_pkt_scan,

	.dq_callback = sd_reset_snapshot,

	.querymenu = sd_querymenu,

	.get_jcomp = sd_get_jcomp,

	.set_jcomp = sd_set_jcomp,

#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)

drivers/media/video/gspca/w996Xcf.c

+11 −4
Original line number Diff line number Diff line
@@ -404,9 +404,14 @@ static void w9968cf_set_crop_window(struct sd *sd) 
	}



	if (sd->sensor == SEN_OV7620) {

		/* Sigh, this is dependend on the clock / framerate changes

		   made by the frequency control, sick. */

		if (sd->ctrls[FREQ].val == 1) {

		/*

		 * Sigh, this is dependend on the clock / framerate changes

		 * made by the frequency control, sick.

		 *

		 * Note we cannot use v4l2_ctrl_g_ctrl here, as we get called

		 * from ov519.c:setfreq() with the ctrl lock held!

		 */

		if (sd->freq->val == 1) {

			start_cropx = 277;

			start_cropy = 37;

		} else {
@@ -474,8 +479,9 @@ static void w9968cf_mode_init_regs(struct sd *sd) 
		/* We may get called multiple times (usb isoc bw negotiat.) */

		jpeg_define(sd->jpeg_hdr, sd->gspca_dev.height,

			    sd->gspca_dev.width, 0x22); /* JPEG 420 */

		jpeg_set_qual(sd->jpeg_hdr, sd->quality);

		jpeg_set_qual(sd->jpeg_hdr, v4l2_ctrl_g_ctrl(sd->jpegqual));

		w9968cf_upload_quantizationtables(sd);

		v4l2_ctrl_grab(sd->jpegqual, true);

	}



	/* Video Capture Control Register */
@@ -514,6 +520,7 @@ static void w9968cf_mode_init_regs(struct sd *sd) 


static void w9968cf_stop0(struct sd *sd)

{

	v4l2_ctrl_grab(sd->jpegqual, false);

	reg_w(sd, 0x39, 0x0000); /* disable JPEG encoder */

	reg_w(sd, 0x16, 0x0000); /* stop video capture */

}