#define GSPCAV2_H
#include <linux/module.h>
-#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/usb.h>
#include <linux/videodev2.h>
#endif
#undef err
#define err(fmt, args...) \
- do {\
- printk(KERN_ERR MODULE_NAME ": " fmt "\n", ## args); \
- } while (0)
+ printk(KERN_ERR MODULE_NAME ": " fmt "\n", ## args)
#undef info
#define info(fmt, args...) \
- do {\
- printk(KERN_INFO MODULE_NAME ": " fmt "\n", ## args); \
- } while (0)
+ printk(KERN_INFO MODULE_NAME ": " fmt "\n", ## args)
#undef warn
#define warn(fmt, args...) \
- do {\
- printk(KERN_WARNING MODULE_NAME ": " fmt "\n", ## args); \
- } while (0)
+ 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 */
-#define ISO_MAX_PKT 32 /* max number of packets in an ISOC transfer */
-#define ISO_MAX_SIZE 0x8000 /* max size of one URB buffer (32 Kb) */
+
+
+/* used to list framerates supported by a camera mode (resolution) */
+struct framerates {
+ int *rates;
+ int nrates;
+};
/* device information - set at probe time */
struct cam {
- struct v4l2_pix_format *cam_mode; /* size nmodes */
- char nmodes;
- __u8 epaddr;
+ const struct v4l2_pix_format *cam_mode; /* size nmodes */
+ const struct framerates *mode_framerates; /* must have size nmode,
+ * just like cam_mode */
+ u32 bulk_size; /* buffer size when image transfer by bulk */
+ u32 input_flags; /* value for ENUM_INPUT status flags */
+ u8 nmodes; /* size of cam_mode */
+ u8 no_urb_create; /* don't create transfer URBs */
+ 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 */
+ u8 reverse_alts; /* Alt settings are in high to low order */
};
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,
+ u8 *data,
int len);
struct ctrl {
/* mandatory operations */
cam_cf_op config; /* called on probe */
cam_op init; /* called on probe and resume */
- cam_op start; /* called on stream on */
+ 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 - alt 0 */
+ 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 */
-#define DISCARD_PACKET 0
-#define FIRST_PACKET 1
-#define INTER_PACKET 2
-#define LAST_PACKET 3
+enum gspca_packet_type {
+ DISCARD_PACKET,
+ FIRST_PACKET,
+ INTER_PACKET,
+ LAST_PACKET
+};
struct gspca_frame {
__u8 *data; /* frame buffer */
struct gspca_dev {
struct video_device vdev; /* !! must be the first item */
- struct file_operations fops;
+ struct module *module; /* subdriver handling the device */
struct usb_device *dev;
- struct kref kref;
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) */
+ unsigned ctrl_inac; /* inactive controls (bit map) */
#define USB_BUF_SZ 64
__u8 *usb_buf; /* buffer for USB exchanges */
__u8 *frbuf; /* buffer for nframes */
struct gspca_frame frame[GSPCA_MAX_FRAMES];
+ struct gspca_frame *cur_frame; /* frame beeing filled */
__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 */
- char last_packet_type;
+ __u8 last_packet_type;
+ __s8 empty_packet; /* if (-1) don't check empty packets */
+ __u8 streaming;
- __u8 iface; /* USB interface number */
- __u8 alt; /* USB alternate setting */
- __u8 bulk; /* image transfer by isoc (0) or bulk (1) */
__u8 curr_mode; /* current camera mode */
__u32 pixfmt; /* current mode parameters */
__u16 width;
__u16 height;
+ __u32 sequence; /* frame sequence number */
- atomic_t nevent; /* number of frames done */
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 */
- __u32 sequence; /* frame sequence number */
- char streaming;
+ int usb_err; /* USB error - protected by usb_lock */
#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,
int dev_size,
struct module *module);
void gspca_disconnect(struct usb_interface *intf);
-struct gspca_frame *gspca_frame_add(struct gspca_dev *gspca_dev,
- int packet_type,
- struct gspca_frame *frame,
- const __u8 *data,
- int len);
+void gspca_frame_add(struct gspca_dev *gspca_dev,
+ enum gspca_packet_type packet_type,
+ 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);
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