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

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *		Mars-Semi MR97311A library
 *		Copyright (C) 2005 <[email protected]>
 *
 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
 */

#define pr_fmt(fmt) …

#define MODULE_NAME …

#include "gspca.h"
#include "jpeg.h"

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

#define QUALITY …

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

/* V4L2 controls supported by the driver */
static void setbrightness(struct gspca_dev *gspca_dev, s32 val);
static void setcolors(struct gspca_dev *gspca_dev, s32 val);
static void setgamma(struct gspca_dev *gspca_dev, s32 val);
static void setsharpness(struct gspca_dev *gspca_dev, s32 val);

static const struct v4l2_pix_format vga_mode[] = …;

static const __u8 mi_data[0x20] = …;

/* write <len> bytes from gspca_dev->usb_buf */
static void reg_w(struct gspca_dev *gspca_dev,
		 int len)
{ … }

static void mi_w(struct gspca_dev *gspca_dev,
		 u8 addr,
		 u8 value)
{ … }

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

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

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

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

static void setilluminators(struct gspca_dev *gspca_dev, bool top, bool bottom)
{ … }

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

static const struct v4l2_ctrl_ops mars_ctrl_ops = …;

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

/* 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 */
{ … }

/* 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(…) …;