Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 143dd345 authored by Hans de Goede's avatar Hans de Goede Committed by Mauro Carvalho Chehab
Browse files

[media] gspca-pac207: Add a led_invert module parameter 



Some cams have their led connected in such a way that on = off and visa versa
unfortunately we cannot tell this from the driver in any way, so add a module
parameter for this.

Reported-by: default avatarYuri Glushkov <yglushkov@yahoo.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 04881127

drivers/media/usb/gspca/pac207.c

+26 −6
Original line number Diff line number Diff line
@@ -55,6 +55,11 @@ MODULE_LICENSE("GPL"); 


#define PAC207_AUTOGAIN_DEADZONE	30



/* global parameters */

static int led_invert;

module_param(led_invert, int, 0644);

MODULE_PARM_DESC(led_invert, "Invert led");



/* specific webcam descriptor */

struct sd {

	struct gspca_dev gspca_dev;		/* !! must be the first item */
@@ -187,10 +192,14 @@ static int sd_config(struct gspca_dev *gspca_dev, 
/* this function is called at probe and resume time */

static int sd_init(struct gspca_dev *gspca_dev)

{

	pac207_write_reg(gspca_dev, 0x41, 0x00);

				/* Bit_0=Image Format,

				 * Bit_1=LED,

				 * Bit_2=Compression test mode enable */

	u8 mode;



	/* mode: Image Format (Bit 0), LED (1), Compr. test mode (2) */

	if (led_invert)

		mode = 0x02;

	else

		mode = 0x00;

	pac207_write_reg(gspca_dev, 0x41, mode);

	pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */



	return gspca_dev->usb_err;
@@ -303,7 +312,11 @@ static int sd_start(struct gspca_dev *gspca_dev) 
	pac207_write_reg(gspca_dev, 0x02,

		v4l2_ctrl_g_ctrl(gspca_dev->exposure)); /* PXCK = 12MHz /n */



	mode = 0x02; /* Image Format (Bit 0), LED (1), Compr. test mode (2) */

	/* mode: Image Format (Bit 0), LED (1), Compr. test mode (2) */

	if (led_invert)

		mode = 0x00;

	else

		mode = 0x02;

	if (gspca_dev->width == 176) {	/* 176x144 */

		mode |= 0x01;

		PDEBUG(D_STREAM, "pac207_start mode 176x144");
@@ -325,8 +338,15 @@ static int sd_start(struct gspca_dev *gspca_dev) 


static void sd_stopN(struct gspca_dev *gspca_dev)

{

	u8 mode;



	/* mode: Image Format (Bit 0), LED (1), Compr. test mode (2) */

	if (led_invert)

		mode = 0x02;

	else

		mode = 0x00;

	pac207_write_reg(gspca_dev, 0x40, 0x00); /* Stop ISO pipe */

	pac207_write_reg(gspca_dev, 0x41, 0x00); /* Turn of LED */

	pac207_write_reg(gspca_dev, 0x41, mode); /* Turn off LED */

	pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */

}