diff options
Diffstat (limited to 'kernel/drivers/media/usb/stkwebcam/stk-webcam.h')
| -rw-r--r-- | kernel/drivers/media/usb/stkwebcam/stk-webcam.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/kernel/drivers/media/usb/stkwebcam/stk-webcam.h b/kernel/drivers/media/usb/stkwebcam/stk-webcam.h new file mode 100644 index 000000000..9bbfa3d9b --- /dev/null +++ b/kernel/drivers/media/usb/stkwebcam/stk-webcam.h @@ -0,0 +1,140 @@ +/* + * 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-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) + + +#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; + __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, 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 |