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* stk-webcam.h : Driver for Syntek 1125 USB webcam controller
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#include <linux/usb.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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#define PREFIX "stkwebcam: "
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#define STK_INFO(str, args...) printk(KERN_INFO PREFIX str, ##args)
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#define STK_ERROR(str, args...) printk(KERN_ERR PREFIX str, ##args)
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#define STK_WARNING(str, args...) printk(KERN_WARNING PREFIX str, ##args)
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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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struct stk_camera *dev;
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struct list_head list;
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enum stk_mode {MODE_VGA, MODE_SXGA, MODE_CIF, MODE_QVGA, MODE_QCIF};
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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 video_device vdev;
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struct usb_device *udev;
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struct usb_interface *interface;
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/* Not sure if this is right */
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struct stk_video vsettings;
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enum stk_status status;
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wait_queue_head_t wait_frame;
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struct stk_iso_buf *isobufs;
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/* Streaming buffers */
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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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#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, int *);
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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);