[media] se401: remove last V4L1 driver

This driver is for obsolete hardware that the old maintainer
didn't care (or not have the hardware anymore), and that no other developer
could find any hardware to buy.

The V4L1 API is no longer supported, and since nobody stepped in to convert
them to V4L2 the decision was made to remove them.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

Documentation/feature-removal-schedule.txt

@@ -97,21 +97,6 @@ Who:	Pavel Machek <pavel@ucw.cz>
 
 ---------------------------
 
-What:	Video4Linux obsolete drivers using V4L1 API
-When:	kernel 2.6.39
-Files:	drivers/staging/se401/* drivers/staging/usbvideo/*
-Check:	drivers/staging/se401/se401.c drivers/staging/usbvideo/usbvideo.c
-Why:	There are some drivers still using V4L1 API, despite all efforts we've done
-	to migrate. Those drivers are for obsolete hardware that the old maintainer
-	didn't care (or not have the hardware anymore), and that no other developer
-	could find any hardware to buy. They probably have no practical usage today,
-	and people with such old hardware could probably keep using an older version
-	of the kernel. Those drivers will be moved to staging on 2.6.38 and, if nobody
-	cares enough to port and test them with V4L2 API, they'll be removed on 2.6.39.
-Who:	Mauro Carvalho Chehab <mchehab@infradead.org>
-
----------------------------
-
 What:	Video4Linux: Remove obsolete ioctl's
 When:	kernel 2.6.39
 Files:	include/media/videodev2.h

drivers/staging/Kconfig

@@ -55,8 +55,6 @@ source "drivers/staging/cxd2099/Kconfig"
 
 source "drivers/staging/dabusb/Kconfig"
 
-source "drivers/staging/se401/Kconfig"
-
 source "drivers/staging/usbip/Kconfig"
 
 source "drivers/staging/winbond/Kconfig"

drivers/staging/Makefile

@@ -10,7 +10,6 @@ obj-$(CONFIG_VIDEO_CX25821)	+= cx25821/
 obj-$(CONFIG_VIDEO_TM6000)	+= tm6000/
 obj-$(CONFIG_DVB_CXD2099)	+= cxd2099/
 obj-$(CONFIG_USB_DABUSB)        += dabusb/
-obj-$(CONFIG_USB_SE401)         += se401/
 obj-$(CONFIG_LIRC_STAGING)	+= lirc/
 obj-$(CONFIG_USB_IP_COMMON)	+= usbip/
 obj-$(CONFIG_W35UND)		+= winbond/

drivers/staging/se401/Kconfig

-config USB_SE401
-	tristate "USB SE401 Camera support (DEPRECATED)"
-	depends on VIDEO_DEV && VIDEO_V4L2_COMMON && USB
-	---help---
-	  Say Y here if you want to connect this type of camera to your
-	  computer's USB port. See <file:Documentation/video4linux/se401.txt>
-	  for more information and for a list of supported cameras.
-
-	  This driver uses the deprecated V4L1 API and will be removed in
-	  2.6.39, unless someone converts it to the V4L2 API.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called se401.

drivers/staging/se401/Makefile

-obj-$(CONFIG_USB_SE401)         += se401.o

drivers/staging/se401/TODO

-This is an obsolete driver for some old webcams that still use V4L1 API. 
-As V4L1 support is being removed from kernel, if nobody take care on it, 
-the driver will be removed for 2.6.39.
-
-Please send patches to linux-media@vger.kernel.org

drivers/staging/se401/se401.h

-
-#ifndef __LINUX_se401_H
-#define __LINUX_se401_H
-
-#include <linux/uaccess.h>
-#include "videodev.h"
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
-#include <linux/mutex.h>
-
-#define se401_DEBUG	/* Turn on debug messages */
-
-#ifdef se401_DEBUG
-#  define PDEBUG(level, fmt, args...) \
-if (debug >= level) \
-	info("[" __PRETTY_FUNCTION__ ":%d] " fmt, __LINE__ , ## args)
-#else
-#  define PDEBUG(level, fmt, args...) do {} while (0)
-#endif
-
-/* An almost drop-in replacement for sleep_on_interruptible */
-#define wait_interruptible(test, queue, wait) \
-{ \
-	add_wait_queue(queue, wait); \
-	set_current_state(TASK_INTERRUPTIBLE); \
-	if (test) \
-		schedule(); \
-	remove_wait_queue(queue, wait); \
-	set_current_state(TASK_RUNNING); \
-	if (signal_pending(current)) \
-		break; \
-}
-
-#define SE401_REQ_GET_CAMERA_DESCRIPTOR		0x06
-#define SE401_REQ_START_CONTINUOUS_CAPTURE	0x41
-#define SE401_REQ_STOP_CONTINUOUS_CAPTURE	0x42
-#define SE401_REQ_CAPTURE_FRAME			0x43
-#define SE401_REQ_GET_BRT			0x44
-#define SE401_REQ_SET_BRT			0x45
-#define SE401_REQ_GET_WIDTH			0x4c
-#define SE401_REQ_SET_WIDTH			0x4d
-#define SE401_REQ_GET_HEIGHT			0x4e
-#define SE401_REQ_SET_HEIGHT			0x4f
-#define SE401_REQ_GET_OUTPUT_MODE		0x50
-#define SE401_REQ_SET_OUTPUT_MODE		0x51
-#define SE401_REQ_GET_EXT_FEATURE		0x52
-#define SE401_REQ_SET_EXT_FEATURE		0x53
-#define SE401_REQ_CAMERA_POWER			0x56
-#define SE401_REQ_LED_CONTROL			0x57
-#define SE401_REQ_BIOS				0xff
-
-#define SE401_BIOS_READ				0x07
-
-#define SE401_FORMAT_BAYER	0x40
-
-/* Hyundai hv7131b registers
-   7121 and 7141 should be the same (haven't really checked...) */
-/* Mode registers: */
-#define HV7131_REG_MODE_A		0x00
-#define HV7131_REG_MODE_B		0x01
-#define HV7131_REG_MODE_C		0x02
-/* Frame registers: */
-#define HV7131_REG_FRSU		0x10
-#define HV7131_REG_FRSL		0x11
-#define HV7131_REG_FCSU		0x12
-#define HV7131_REG_FCSL		0x13
-#define HV7131_REG_FWHU		0x14
-#define HV7131_REG_FWHL		0x15
-#define HV7131_REG_FWWU		0x16
-#define HV7131_REG_FWWL		0x17
-/* Timing registers: */
-#define HV7131_REG_THBU		0x20
-#define HV7131_REG_THBL		0x21
-#define HV7131_REG_TVBU		0x22
-#define HV7131_REG_TVBL		0x23
-#define HV7131_REG_TITU		0x25
-#define HV7131_REG_TITM		0x26
-#define HV7131_REG_TITL		0x27
-#define HV7131_REG_TMCD		0x28
-/* Adjust Registers: */
-#define HV7131_REG_ARLV		0x30
-#define HV7131_REG_ARCG		0x31
-#define HV7131_REG_AGCG		0x32
-#define HV7131_REG_ABCG		0x33
-#define HV7131_REG_APBV		0x34
-#define HV7131_REG_ASLP		0x54
-/* Offset Registers: */
-#define HV7131_REG_OFSR		0x50
-#define HV7131_REG_OFSG		0x51
-#define HV7131_REG_OFSB		0x52
-/* REset level statistics registers: */
-#define HV7131_REG_LOREFNOH	0x57
-#define HV7131_REG_LOREFNOL	0x58
-#define HV7131_REG_HIREFNOH	0x59
-#define HV7131_REG_HIREFNOL	0x5a
-
-/* se401 registers */
-#define SE401_OPERATINGMODE	0x2000
-
-
-/* size of usb transfers */
-#define SE401_PACKETSIZE	4096
-/* number of queued bulk transfers to use, should be about 8 */
-#define SE401_NUMSBUF		1
-/* read the usb specs for this one :) */
-#define SE401_VIDEO_ENDPOINT	1
-#define SE401_BUTTON_ENDPOINT	2
-/* number of frames supported by the v4l part */
-#define SE401_NUMFRAMES		2
-/* scratch buffers for passing data to the decoders */
-#define SE401_NUMSCRATCH	32
-/* maximum amount of data in a JangGu packet */
-#define SE401_VLCDATALEN	1024
-/* number of nul sized packets to receive before kicking the camera */
-#define SE401_MAX_NULLPACKETS	4000
-/* number of decoding errors before kicking the camera */
-#define SE401_MAX_ERRORS	200
-
-struct usb_device;
-
-struct se401_sbuf {
-	unsigned char *data;
-};
-
-enum {
-	FRAME_UNUSED,		/* Unused (no MCAPTURE) */
-	FRAME_READY,		/* Ready to start grabbing */
-	FRAME_GRABBING,		/* In the process of being grabbed into */
-	FRAME_DONE,		/* Finished grabbing, but not been synced yet */
-	FRAME_ERROR,		/* Something bad happened while processing */
-};
-
-enum {
-	FMT_BAYER,
-	FMT_JANGGU,
-};
-
-enum {
-	BUFFER_UNUSED,
-	BUFFER_READY,
-	BUFFER_BUSY,
-	BUFFER_DONE,
-};
-
-struct se401_scratch {
-	unsigned char *data;
-	volatile int state;
-	int offset;
-	int length;
-};
-
-struct se401_frame {
-	unsigned char *data;		/* Frame buffer */
-
-	volatile int grabstate;	/* State of grabbing */
-
-	unsigned char *curline;
-	int curlinepix;
-	int curpix;
-};
-
-struct usb_se401 {
-	struct video_device vdev;
-
-	/* Device structure */
-	struct usb_device *dev;
-
-	unsigned char iface;
-
-	char *camera_name;
-
-	int change;
-	int brightness;
-	int hue;
-	int rgain;
-	int ggain;
-	int bgain;
-	int expose_h;
-	int expose_m;
-	int expose_l;
-	int resetlevel;
-
-	int enhance;
-
-	int format;
-	int sizes;
-	int *width;
-	int *height;
-	int cwidth;		/* current width */
-	int cheight;		/* current height */
-	int palette;
-	int maxframesize;
-	int cframesize;		/* current framesize */
-
-	struct mutex lock;
-	int user;		/* user count for exclusive use */
-	int removed;		/* device disconnected */
-
-	int streaming;		/* Are we streaming video? */
-
-	char *fbuf;		/* Videodev buffer area */
-
-	struct urb *urb[SE401_NUMSBUF];
-	struct urb *inturb;
-
-	int button;
-	int buttonpressed;
-
-	int curframe;		/* Current receiving frame */
-	struct se401_frame frame[SE401_NUMFRAMES];
-	int readcount;
-	int framecount;
-	int error;
-	int dropped;
-
-	int scratch_next;
-	int scratch_use;
-	int scratch_overflow;
-	struct se401_scratch scratch[SE401_NUMSCRATCH];
-
-	/* Decoder specific data: */
-	unsigned char vlcdata[SE401_VLCDATALEN];
-	int vlcdatapos;
-	int bayeroffset;
-
-	struct se401_sbuf sbuf[SE401_NUMSBUF];
-
-	wait_queue_head_t wq;	/* Processes waiting */
-
-	int nullpackets;
-};
-
-
-
-#endif
-