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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* stk-webcam.h : Driver for Syntek 1125 USB webcam controller
*
* Copyright (C) 2006 Nicolas VIVIEN
* Copyright 2007-2008 Jaime Velasco Juan <jsagarribay@gmail.com>
*/
#ifndef STKWEBCAM_H
#define STKWEBCAM_H
#include <linux/usb.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-common.h>
#define DRIVER_VERSION "v0.0.1"
#define DRIVER_VERSION_NUM 0x000001
#define MAX_ISO_BUFS 3
#define ISO_FRAMES_PER_DESC 16
#define ISO_MAX_FRAME_SIZE 3 * 1024
#define ISO_BUFFER_SIZE (ISO_FRAMES_PER_DESC * ISO_MAX_FRAME_SIZE)
struct stk_iso_buf {
void *data;
int length;
int read;
struct urb *urb;
};
/* Streaming IO buffers */
struct stk_sio_buffer {
struct v4l2_buffer v4lbuf;
char *buffer;
int mapcount;
struct stk_camera *dev;
struct list_head list;
};
enum stk_mode {MODE_VGA, MODE_SXGA, MODE_CIF, MODE_QVGA, MODE_QCIF};
struct stk_video {
enum stk_mode mode;
__u32 palette;
int hflip;
int vflip;
};
enum stk_status {
S_PRESENT = 1,
S_INITIALISED = 2,
S_MEMALLOCD = 4,
S_STREAMING = 8,
};
#define is_present(dev) ((dev)->status & S_PRESENT)
#define is_initialised(dev) ((dev)->status & S_INITIALISED)
#define is_streaming(dev) ((dev)->status & S_STREAMING)
#define is_memallocd(dev) ((dev)->status & S_MEMALLOCD)
#define set_present(dev) ((dev)->status = S_PRESENT)
#define unset_present(dev) ((dev)->status &= \
~(S_PRESENT|S_INITIALISED|S_STREAMING))
#define set_initialised(dev) ((dev)->status |= S_INITIALISED)
#define unset_initialised(dev) ((dev)->status &= ~S_INITIALISED)
#define set_memallocd(dev) ((dev)->status |= S_MEMALLOCD)
#define unset_memallocd(dev) ((dev)->status &= ~S_MEMALLOCD)
#define set_streaming(dev) ((dev)->status |= S_STREAMING)
#define unset_streaming(dev) ((dev)->status &= ~S_STREAMING)
struct regval {
unsigned reg;
unsigned val;
};
struct stk_camera {
struct v4l2_device v4l2_dev;
struct v4l2_ctrl_handler hdl;
struct video_device vdev;
struct usb_device *udev;
struct usb_interface *interface;
int webcam_model;
struct file *owner;
struct mutex lock;
int first_init;
u8 isoc_ep;
/* Not sure if this is right */
atomic_t urbs_used;
struct stk_video vsettings;
enum stk_status status;
spinlock_t spinlock;
wait_queue_head_t wait_frame;
struct stk_iso_buf *isobufs;
int frame_size;
/* Streaming buffers */
int reading;
unsigned int n_sbufs;
struct stk_sio_buffer *sio_bufs;
struct list_head sio_avail;
struct list_head sio_full;
unsigned sequence;
};
#define vdev_to_camera(d) container_of(d, struct stk_camera, vdev)
int stk_camera_write_reg(struct stk_camera *, u16, u8);
int stk_camera_read_reg(struct stk_camera *, u16, u8 *);
int stk_sensor_init(struct stk_camera *);
int stk_sensor_configure(struct stk_camera *);
int stk_sensor_sleep(struct stk_camera *dev);
int stk_sensor_wakeup(struct stk_camera *dev);
int stk_sensor_set_brightness(struct stk_camera *dev, int br);
#endif
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