#ifndef GSPCAV2_H #define GSPCAV2_H #include #include #include #include #include #include /* 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 */