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