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

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Jeilinj subdriver
 *
 * Supports some Jeilin dual-mode cameras which use bulk transport and
 * download raw JPEG data.
 *
 * Copyright (C) 2009 Theodore Kilgore
 *
 * Sportscam DV15 support and control settings are
 * Copyright (C) 2011 Patrice Chotard
 */

#define pr_fmt(fmt) …

#define MODULE_NAME …

#include <linux/slab.h>
#include "gspca.h"
#include "jpeg.h"

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

/* Default timeouts, in ms */
#define JEILINJ_CMD_TIMEOUT …
#define JEILINJ_CMD_DELAY …
#define JEILINJ_DATA_TIMEOUT …

/* Maximum transfer size to use. */
#define JEILINJ_MAX_TRANSFER …
#define FRAME_HEADER_LEN …
#define FRAME_START …

enum { … };

#define CAMQUALITY_MIN …
#define CAMQUALITY_MAX …

/* Structure to hold all of our device specific stuff */
struct sd { … };

struct jlj_command { … };

/* AFAICT these cameras will only do 320x240. */
static struct v4l2_pix_format jlj_mode[] = …;

/*
 * cam uses endpoint 0x03 to send commands, 0x84 for read commands,
 * and 0x82 for bulk transfer.
 */

/* All commands are two bytes only */
static void jlj_write2(struct gspca_dev *gspca_dev, unsigned char *command)
{ … }

/* Responses are one byte only */
static void jlj_read1(struct gspca_dev *gspca_dev, unsigned char *response)
{ … }

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

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

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

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

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

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

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

static void sd_pkt_scan(struct gspca_dev *gspca_dev,
			u8 *data, int len)
{ … }

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

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

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

/* Set up for getting frames. */
static int sd_start(struct gspca_dev *gspca_dev)
{ … }

/* Table of supported USB devices */
static const struct usb_device_id device_table[] = …;

MODULE_DEVICE_TABLE(usb, device_table);

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)
{ … }

static int sd_set_jcomp(struct gspca_dev *gspca_dev,
			const struct v4l2_jpegcompression *jcomp)
{ … }

static int sd_get_jcomp(struct gspca_dev *gspca_dev,
			struct v4l2_jpegcompression *jcomp)
{ … }


/* sub-driver description */
static const struct sd_desc sd_desc_sakar_57379 = …;

/* sub-driver description */
static const struct sd_desc sd_desc_sportscam_dv15 = …;

static const struct sd_desc *sd_desc[2] = …;

/* -- 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(…) …;