Commit 2526ea6e authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

V4L/DVB (12401): m9v011: add vflip/hflip controls to control mirror/upside down 



Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent d96ecda6

drivers/media/video/mt9v011.c

+51 −2
Original line number Diff line number Diff line
@@ -52,13 +52,34 @@ static struct v4l2_queryctrl mt9v011_qctrl[] = { 
		.step = 1,

		.default_value = 0,

		.flags = 0,

	},

	}, {

		.id      = V4L2_CID_HFLIP,

		.type    = V4L2_CTRL_TYPE_BOOLEAN,

		.name    = "Mirror",

		.minimum = 0,

		.maximum = 1,

		.step    = 1,

		.default_value = 0,

		.flags = 0,

	}, {

		.id      = V4L2_CID_VFLIP,

		.type    = V4L2_CTRL_TYPE_BOOLEAN,

		.name    = "Vflip",

		.minimum = 0,

		.maximum = 1,

		.step    = 1,

		.default_value = 0,

		.flags = 0,

	}, {

	}

};



struct mt9v011 {

	struct v4l2_subdev sd;

	unsigned width, height;

	unsigned xtal;

	unsigned hflip:1;

	unsigned vflip:1;



	u16 global_gain, red_bal, blue_bal;

};
@@ -131,7 +152,6 @@ static const struct i2c_reg_value mt9v011_init_default[] = { 


		{ R0A_MT9V011_CLK_SPEED, 0x0000 },

		{ R1E_MT9V011_DIGITAL_ZOOM,  0x0000 },

		{ R20_MT9V011_READ_MODE, 0x1000 },



		{ R07_MT9V011_OUT_CTRL, 0x0002 },	/* chip enable */

};
@@ -255,6 +275,20 @@ static void set_res(struct v4l2_subdev *sd) 
	calc_fps(sd, NULL, NULL);

};



static void set_read_mode(struct v4l2_subdev *sd)

{

	struct mt9v011 *core = to_mt9v011(sd);

	unsigned mode = 0x1000;



	if (core->hflip)

		mode |= 0x4000;



	if (core->vflip)

		mode |= 0x8000;



	mt9v011_write(sd, R20_MT9V011_READ_MODE, mode);

}



static int mt9v011_reset(struct v4l2_subdev *sd, u32 val)

{

	int i;
@@ -265,6 +299,7 @@ static int mt9v011_reset(struct v4l2_subdev *sd, u32 val) 


	set_balance(sd);

	set_res(sd);

	set_read_mode(sd);



	return 0;

};
@@ -285,6 +320,12 @@ static int mt9v011_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) 
	case V4L2_CID_BLUE_BALANCE:

		ctrl->value = core->blue_bal;

		return 0;

	case V4L2_CID_HFLIP:

		ctrl->value = core->hflip ? 1 : 0;

		return 0;

	case V4L2_CID_VFLIP:

		ctrl->value = core->vflip ? 1 : 0;

		return 0;

	}

	return -EINVAL;

}
@@ -333,6 +374,14 @@ static int mt9v011_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) 
	case V4L2_CID_BLUE_BALANCE:

		core->blue_bal = ctrl->value;

		break;

	case V4L2_CID_HFLIP:

		core->hflip = ctrl->value;

		set_read_mode(sd);

		return 0;

	case V4L2_CID_VFLIP:

		core->vflip = ctrl->value;

		set_read_mode(sd);

		return 0;

	default:

		return -EINVAL;

	}