/* * stk-webcam.h : Driver for Syntek 1125 USB webcam controller * * Copyright (C) 2006 Nicolas VIVIEN * Copyright 2007-2008 Jaime Velasco Juan <jsagarribay@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef STKWEBCAM_H #define STKWEBCAM_H #include <linux/usb.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) #define PREFIX "stkwebcam: " #define STK_INFO(str, args...) printk(KERN_INFO PREFIX str, ##args) #define STK_ERROR(str, args...) printk(KERN_ERR PREFIX str, ##args) #define STK_WARNING(str, args...) printk(KERN_WARNING PREFIX str, ##args) 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; int brightness; __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 video_device vdev; struct usb_device *udev; struct usb_interface *interface; int webcam_model; struct file *owner; u8 isoc_ep; struct kref kref; /* 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 */ unsigned int n_sbufs; struct stk_sio_buffer *sio_bufs; struct list_head sio_avail; struct list_head sio_full; unsigned sequence; }; #define to_stk_camera(d) container_of(d, struct stk_camera, kref) #define vdev_to_camera(d) container_of(d, struct stk_camera, vdev) void stk_camera_delete(struct kref *); int stk_camera_write_reg(struct stk_camera *, u16, u8); int stk_camera_read_reg(struct stk_camera *, u16, int *); 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