Commit c5f48367 authored by Thierry MERLE's avatar Thierry MERLE Committed by Mauro Carvalho Chehab
Browse files

V4L/DVB (5644): Usbvision: video_ioctl2 conversion 



The ioctl entry point, a big switch/case, is splitted in little 
functions. 

These functions are set as callbacks for the video_ioctl2 video4linux 
facility.

This improves the driver memory consumption and enables the v4l1 
compatibility as a side effect.

Signed-off-by: default avatarThierry MERLE <thierry.merle@free.fr>
Acked-by: default avatarDwaine P. Garden <dwainegarden@rogers.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent ea1f83ce

drivers/media/video/usbvision/usbvision-core.c

+4 −4
Original line number Diff line number Diff line
@@ -1831,10 +1831,10 @@ int usbvision_set_output(struct usb_usbvision *usbvision, int width, 
		frameRate = FRAMERATE_MAX;

	}



	if (usbvision->tvnorm->id & V4L2_STD_625_50) {

	if (usbvision->tvnormId & V4L2_STD_625_50) {

		frameDrop = frameRate * 32 / 25 - 1;

	}

	else if (usbvision->tvnorm->id & V4L2_STD_525_60) {

	else if (usbvision->tvnormId & V4L2_STD_525_60) {

		frameDrop = frameRate * 32 / 30 - 1;

	}
@@ -2067,7 +2067,7 @@ int usbvision_set_input(struct usb_usbvision *usbvision) 
	}





	if (usbvision->tvnorm->id & V4L2_STD_PAL) {

	if (usbvision->tvnormId & V4L2_STD_PAL) {

		value[0] = 0xC0;

		value[1] = 0x02;	//0x02C0 -> 704 Input video line length

		value[2] = 0x20;
@@ -2076,7 +2076,7 @@ int usbvision_set_input(struct usb_usbvision *usbvision) 
		value[5] = 0x00;	//0x0060 -> 96 Input video h offset

		value[6] = 0x16;

		value[7] = 0x00;	//0x0016 -> 22 Input video v offset

	} else if (usbvision->tvnorm->id & V4L2_STD_SECAM) {

	} else if (usbvision->tvnormId & V4L2_STD_SECAM) {

		value[0] = 0xC0;

		value[1] = 0x02;	//0x02C0 -> 704 Input video line length

		value[2] = 0x20;

drivers/media/video/usbvision/usbvision-video.c

+780 −673

File changed.

Preview size limit exceeded, changes collapsed.

drivers/media/video/usbvision/usbvision.h

+3 −9
Original line number Diff line number Diff line
@@ -221,6 +221,8 @@ enum { 


#define I2C_USB_ADAP_MAX	16



#define USBVISION_NORMS (V4L2_STD_PAL | V4L2_STD_NTSC | V4L2_STD_SECAM | V4L2_STD_PAL_M)



/* ----------------------------------------------------------------- */

/* usbvision video structures                                        */

/* ----------------------------------------------------------------- */
@@ -301,14 +303,6 @@ struct usbvision_frame_header { 
	__u16 frameHeight;				/* 10 - 11 after endian correction*/

};



/* tvnorms */

struct usbvision_tvnorm {

	char *name;

	v4l2_std_id id;

	/* mode for saa7113h */

	int mode;

};



struct usbvision_frame {

	char *data;					/* Frame buffer */

	struct usbvision_frame_header isocHeader;	/* Header from stream */
@@ -441,7 +435,7 @@ struct usb_usbvision { 


	struct v4l2_capability vcap;					/* Video capabilities */

	unsigned int ctl_input;						/* selected input */

	struct usbvision_tvnorm *tvnorm;				/* selected tv norm */

	v4l2_std_id tvnormId;						/* selected tv norm */

	unsigned char video_endp;					/* 0x82 for USBVISION devices based */



	// Decompression stuff:

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