Commit 3b9ae658 authored by Erik Andr?n's avatar Erik Andr?n Committed by Mauro Carvalho Chehab
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V4L/DVB (11459): gspca - m5602-po1030: Add auto white balancing control 



Add a po1030 auto white balancing control that's disabled by default

Signed-off-by: default avatarErik Andr?n <erik.andren@gmail.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent cb29e691

drivers/media/video/gspca/m5602/m5602_po1030.c

+51 −0
Original line number Diff line number Diff line
@@ -119,6 +119,20 @@ const static struct ctrl po1030_ctrls[] = { 
		},

		.set = po1030_set_vflip,

		.get = po1030_get_vflip

	},

#define AUTO_WHITE_BALANCE_IDX 6

	{

		{

			.id 		= V4L2_CID_AUTO_WHITE_BALANCE,

			.type 		= V4L2_CTRL_TYPE_BOOLEAN,

			.name 		= "auto white balance",

			.minimum 	= 0,

			.maximum 	= 1,

			.step 		= 1,

			.default_value 	= 0,

		},

		.set = po1030_set_auto_white_balance,

		.get = po1030_get_auto_white_balance

	}

};
@@ -238,6 +252,14 @@ int po1030_init(struct sd *sd) 


	err = po1030_set_red_balance(&sd->gspca_dev,

				      sensor_settings[BLUE_BALANCE_IDX]);

	if (err < 0)

		return err;



	err = po1030_set_auto_white_balance(&sd->gspca_dev,

				      sensor_settings[AUTO_WHITE_BALANCE_IDX]);

	if (err < 0)

		return err;



	return err;

}
@@ -425,6 +447,35 @@ int po1030_set_blue_balance(struct gspca_dev *gspca_dev, __s32 val) 
	return err;

}



int po1030_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val)

{

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

	s32 *sensor_settings = sd->sensor_priv;



	*val = sensor_settings[AUTO_WHITE_BALANCE_IDX];

	PDEBUG(D_V4L2, "Auto white balancing is %d", *val);



	return 0;

}



int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val)

{

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

	s32 *sensor_settings = sd->sensor_priv;

	u8 i2c_data;

	int err;



	sensor_settings[AUTO_WHITE_BALANCE_IDX] = val;



	err = m5602_read_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);

	if (err < 0)

		return err;



	i2c_data = (i2c_data & 0xfe) | (val & 0x01);

	err = m5602_write_sensor(sd, PO1030_AUTOCTRL1, &i2c_data, 1);

	return err;

}



void po1030_disconnect(struct sd *sd)

{

	sd->sensor = NULL;

drivers/media/video/gspca/m5602/m5602_po1030.h

+2 −0
Original line number Diff line number Diff line
@@ -162,6 +162,8 @@ int po1030_get_hflip(struct gspca_dev *gspca_dev, __s32 *val); 
int po1030_set_hflip(struct gspca_dev *gspca_dev, __s32 val);

int po1030_get_vflip(struct gspca_dev *gspca_dev, __s32 *val);

int po1030_set_vflip(struct gspca_dev *gspca_dev, __s32 val);

int po1030_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val);

int po1030_get_auto_white_balance(struct gspca_dev *gspca_dev, __s32 *val);



static const struct m5602_sensor po1030 = {

	.name = "PO1030",