linux/drivers/media/usb/gspca/spca506.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * SPCA506 chip based cameras function
 * M Xhaard 15/04/2004 based on different work Mark Taylor and others
 * and my own snoopy file on a pv-321c donate by a german compagny
 *                "Firma Frank Gmbh" from  Saarbruecken
 *
 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
 */

#define MODULE_NAME …

#include "gspca.h"

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;

/* specific webcam descriptor */
struct sd { … };

static const struct v4l2_pix_format vga_mode[] = …;

#define SPCA50X_OFFSET_DATA …

#define SAA7113_bright …
#define SAA7113_contrast …
#define SAA7113_saturation …
#define SAA7113_hue …
#define SAA7113_I2C_BASE_WRITE …

/* read 'len' bytes to gspca_dev->usb_buf */
static void reg_r(struct gspca_dev *gspca_dev,
		  __u16 req,
		  __u16 index,
		  __u16 length)
{ … }

static void reg_w(struct usb_device *dev,
		  __u16 req,
		  __u16 value,
		  __u16 index)
{ … }

static void spca506_Initi2c(struct gspca_dev *gspca_dev)
{ … }

static void spca506_WriteI2c(struct gspca_dev *gspca_dev, __u16 valeur,
			     __u16 reg)
{ … }

static void spca506_SetNormeInput(struct gspca_dev *gspca_dev,
				 __u16 norme,
				 __u16 channel)
{ … }

static void spca506_GetNormeInput(struct gspca_dev *gspca_dev,
				  __u16 *norme, __u16 *channel)
{ … }

static void spca506_Setsize(struct gspca_dev *gspca_dev, __u16 code,
			    __u16 xmult, __u16 ymult)
{ … }

/* this function is called at probe time */
static int sd_config(struct gspca_dev *gspca_dev,
			const struct usb_device_id *id)
{ … }

/* this function is called at probe and resume time */
static int sd_init(struct gspca_dev *gspca_dev)
{ … }

static int sd_start(struct gspca_dev *gspca_dev)
{ … }

static void sd_stopN(struct gspca_dev *gspca_dev)
{ … }

static void sd_pkt_scan(struct gspca_dev *gspca_dev,
			u8 *data,			/* isoc packet */
			int len)			/* iso packet length */
{ … }

static void setbrightness(struct gspca_dev *gspca_dev, s32 val)
{ … }

static void setcontrast(struct gspca_dev *gspca_dev, s32 val)
{ … }

static void setcolors(struct gspca_dev *gspca_dev, s32 val)
{ … }

static void sethue(struct gspca_dev *gspca_dev, s32 val)
{ … }

static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
{ … }

static const struct v4l2_ctrl_ops sd_ctrl_ops = …;

static int sd_init_controls(struct gspca_dev *gspca_dev)
{ … }

/* sub-driver description */
static const struct sd_desc sd_desc = …;

/* -- module initialisation -- */
static const struct usb_device_id device_table[] = …;
MODULE_DEVICE_TABLE(usb, device_table);

/* -- device connect -- */
static int sd_probe(struct usb_interface *intf, const struct usb_device_id *id)
{ … }

static struct usb_driver sd_driver = …;

module_usb_driver(…) …;