205 lines
6.3 KiB
C
205 lines
6.3 KiB
C
#ifndef GSPCAV2_H
|
|
#define GSPCAV2_H
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/usb.h>
|
|
#include <linux/videodev2.h>
|
|
#include <media/v4l2-common.h>
|
|
#include <linux/mutex.h>
|
|
|
|
/* compilation option */
|
|
#define GSPCA_DEBUG 1
|
|
|
|
#ifdef GSPCA_DEBUG
|
|
/* GSPCA our debug messages */
|
|
extern int gspca_debug;
|
|
#define PDEBUG(level, fmt, args...) \
|
|
do {\
|
|
if (gspca_debug & (level)) \
|
|
printk(KERN_INFO MODULE_NAME ": " fmt "\n", ## args); \
|
|
} while (0)
|
|
#define D_ERR 0x01
|
|
#define D_PROBE 0x02
|
|
#define D_CONF 0x04
|
|
#define D_STREAM 0x08
|
|
#define D_FRAM 0x10
|
|
#define D_PACK 0x20
|
|
#define D_USBI 0x40
|
|
#define D_USBO 0x80
|
|
#define D_V4L2 0x0100
|
|
#else
|
|
#define PDEBUG(level, fmt, args...)
|
|
#endif
|
|
#undef err
|
|
#define err(fmt, args...) \
|
|
printk(KERN_ERR MODULE_NAME ": " fmt "\n", ## args)
|
|
#undef info
|
|
#define info(fmt, args...) \
|
|
printk(KERN_INFO MODULE_NAME ": " fmt "\n", ## args)
|
|
#undef warn
|
|
#define warn(fmt, args...) \
|
|
printk(KERN_WARNING MODULE_NAME ": " fmt "\n", ## args)
|
|
|
|
#define GSPCA_MAX_FRAMES 16 /* maximum number of video frame buffers */
|
|
/* image transfers */
|
|
#define MAX_NURBS 4 /* max number of URBs */
|
|
|
|
/* device information - set at probe time */
|
|
struct cam {
|
|
int bulk_size; /* buffer size when image transfer by bulk */
|
|
const struct v4l2_pix_format *cam_mode; /* size nmodes */
|
|
char nmodes;
|
|
__u8 bulk_nurbs; /* number of URBs in bulk mode
|
|
* - cannot be > MAX_NURBS
|
|
* - when 0 and bulk_size != 0 means
|
|
* 1 URB and submit done by subdriver */
|
|
u8 bulk; /* image transfer by 0:isoc / 1:bulk */
|
|
u8 npkt; /* number of packets in an ISOC message
|
|
* 0 is the default value: 32 packets */
|
|
u32 input_flags; /* value for ENUM_INPUT status flags */
|
|
};
|
|
|
|
struct gspca_dev;
|
|
struct gspca_frame;
|
|
|
|
/* subdriver operations */
|
|
typedef int (*cam_op) (struct gspca_dev *);
|
|
typedef void (*cam_v_op) (struct gspca_dev *);
|
|
typedef int (*cam_cf_op) (struct gspca_dev *, const struct usb_device_id *);
|
|
typedef int (*cam_jpg_op) (struct gspca_dev *,
|
|
struct v4l2_jpegcompression *);
|
|
typedef int (*cam_reg_op) (struct gspca_dev *,
|
|
struct v4l2_dbg_register *);
|
|
typedef int (*cam_ident_op) (struct gspca_dev *,
|
|
struct v4l2_dbg_chip_ident *);
|
|
typedef int (*cam_streamparm_op) (struct gspca_dev *,
|
|
struct v4l2_streamparm *);
|
|
typedef int (*cam_qmnu_op) (struct gspca_dev *,
|
|
struct v4l2_querymenu *);
|
|
typedef void (*cam_pkt_op) (struct gspca_dev *gspca_dev,
|
|
struct gspca_frame *frame,
|
|
__u8 *data,
|
|
int len);
|
|
|
|
struct ctrl {
|
|
struct v4l2_queryctrl qctrl;
|
|
int (*set)(struct gspca_dev *, __s32);
|
|
int (*get)(struct gspca_dev *, __s32 *);
|
|
};
|
|
|
|
/* subdriver description */
|
|
struct sd_desc {
|
|
/* information */
|
|
const char *name; /* sub-driver name */
|
|
/* controls */
|
|
const struct ctrl *ctrls;
|
|
int nctrls;
|
|
/* mandatory operations */
|
|
cam_cf_op config; /* called on probe */
|
|
cam_op init; /* called on probe and resume */
|
|
cam_op start; /* called on stream on after URBs creation */
|
|
cam_pkt_op pkt_scan;
|
|
/* optional operations */
|
|
cam_op isoc_init; /* called on stream on before getting the EP */
|
|
cam_op isoc_nego; /* called when URB submit failed with NOSPC */
|
|
cam_v_op stopN; /* called on stream off - main alt */
|
|
cam_v_op stop0; /* called on stream off & disconnect - alt 0 */
|
|
cam_v_op dq_callback; /* called when a frame has been dequeued */
|
|
cam_jpg_op get_jcomp;
|
|
cam_jpg_op set_jcomp;
|
|
cam_qmnu_op querymenu;
|
|
cam_streamparm_op get_streamparm;
|
|
cam_streamparm_op set_streamparm;
|
|
#ifdef CONFIG_VIDEO_ADV_DEBUG
|
|
cam_reg_op set_register;
|
|
cam_reg_op get_register;
|
|
#endif
|
|
cam_ident_op get_chip_ident;
|
|
};
|
|
|
|
/* packet types when moving from iso buf to frame buf */
|
|
enum gspca_packet_type {
|
|
DISCARD_PACKET,
|
|
FIRST_PACKET,
|
|
INTER_PACKET,
|
|
LAST_PACKET
|
|
};
|
|
|
|
struct gspca_frame {
|
|
__u8 *data; /* frame buffer */
|
|
__u8 *data_end; /* end of frame while filling */
|
|
int vma_use_count;
|
|
struct v4l2_buffer v4l2_buf;
|
|
};
|
|
|
|
struct gspca_dev {
|
|
struct video_device vdev; /* !! must be the first item */
|
|
struct module *module; /* subdriver handling the device */
|
|
struct usb_device *dev;
|
|
struct file *capt_file; /* file doing video capture */
|
|
|
|
struct cam cam; /* device information */
|
|
const struct sd_desc *sd_desc; /* subdriver description */
|
|
unsigned ctrl_dis; /* disabled controls (bit map) */
|
|
|
|
#define USB_BUF_SZ 64
|
|
__u8 *usb_buf; /* buffer for USB exchanges */
|
|
struct urb *urb[MAX_NURBS];
|
|
|
|
__u8 *frbuf; /* buffer for nframes */
|
|
struct gspca_frame frame[GSPCA_MAX_FRAMES];
|
|
__u32 frsz; /* frame size */
|
|
char nframes; /* number of frames */
|
|
char fr_i; /* frame being filled */
|
|
char fr_q; /* next frame to queue */
|
|
char fr_o; /* next frame to dequeue */
|
|
signed char fr_queue[GSPCA_MAX_FRAMES]; /* frame queue */
|
|
__u8 last_packet_type;
|
|
__s8 empty_packet; /* if (-1) don't check empty packets */
|
|
__u8 streaming;
|
|
|
|
__u8 curr_mode; /* current camera mode */
|
|
__u32 pixfmt; /* current mode parameters */
|
|
__u16 width;
|
|
__u16 height;
|
|
__u32 sequence; /* frame sequence number */
|
|
|
|
wait_queue_head_t wq; /* wait queue */
|
|
struct mutex usb_lock; /* usb exchange protection */
|
|
struct mutex read_lock; /* read protection */
|
|
struct mutex queue_lock; /* ISOC queue protection */
|
|
#ifdef CONFIG_PM
|
|
char frozen; /* suspend - resume */
|
|
#endif
|
|
char users; /* number of opens */
|
|
char present; /* device connected */
|
|
char nbufread; /* number of buffers for read() */
|
|
char nurbs; /* number of allocated URBs */
|
|
char memory; /* memory type (V4L2_MEMORY_xxx) */
|
|
__u8 iface; /* USB interface number */
|
|
__u8 alt; /* USB alternate setting */
|
|
__u8 nbalt; /* number of USB alternate settings */
|
|
u16 pkt_size; /* ISOC packet size */
|
|
};
|
|
|
|
int gspca_dev_probe(struct usb_interface *intf,
|
|
const struct usb_device_id *id,
|
|
const struct sd_desc *sd_desc,
|
|
int dev_size,
|
|
struct module *module);
|
|
void gspca_disconnect(struct usb_interface *intf);
|
|
struct gspca_frame *gspca_frame_add(struct gspca_dev *gspca_dev,
|
|
enum gspca_packet_type packet_type,
|
|
struct gspca_frame *frame,
|
|
const __u8 *data,
|
|
int len);
|
|
struct gspca_frame *gspca_get_i_frame(struct gspca_dev *gspca_dev);
|
|
#ifdef CONFIG_PM
|
|
int gspca_suspend(struct usb_interface *intf, pm_message_t message);
|
|
int gspca_resume(struct usb_interface *intf);
|
|
#endif
|
|
int gspca_auto_gain_n_exposure(struct gspca_dev *gspca_dev, int avg_lum,
|
|
int desired_avg_lum, int deadzone, int gain_knee, int exposure_knee);
|
|
#endif /* GSPCAV2_H */
|