stv680.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:8k
- /****************************************************************************
- *
- * Filename: stv680.h
- *
- * Description:
- * This is a USB driver for STV0680 based usb video cameras.
- *
- * 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
- * (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- ****************************************************************************/
- /* size of usb transfers */
- #define STV680_PACKETSIZE 4096
- /* number of queued bulk transfers to use, may have problems if > 1 */
- #define STV680_NUMSBUF 1
- /* number of frames supported by the v4l part */
- #define STV680_NUMFRAMES 2
- /* scratch buffers for passing data to the decoders: 2 or 4 are good */
- #define STV680_NUMSCRATCH 2
- /* number of nul sized packets to receive before kicking the camera */
- #define STV680_MAX_NULLPACKETS 200
- /* number of decoding errors before kicking the camera */
- #define STV680_MAX_ERRORS 100
- #define USB_PENCAM_VENDOR_ID 0x0553
- #define USB_PENCAM_PRODUCT_ID 0x0202
- #define PENCAM_TIMEOUT 1000
- /* fmt 4 */
- #define STV_VIDEO_PALETTE VIDEO_PALETTE_RGB24
- static __devinitdata struct usb_device_id device_table[] = {
- {USB_DEVICE (USB_PENCAM_VENDOR_ID, USB_PENCAM_PRODUCT_ID)},
- {}
- };
- MODULE_DEVICE_TABLE (usb, device_table);
- struct stv680_sbuf {
- unsigned char *data;
- };
- enum {
- FRAME_UNUSED, /* Unused (no MCAPTURE) */
- FRAME_READY, /* Ready to start grabbing */
- FRAME_GRABBING, /* In the process of being grabbed into */
- FRAME_DONE, /* Finished grabbing, but not been synced yet */
- FRAME_ERROR, /* Something bad happened while processing */
- };
- enum {
- BUFFER_UNUSED,
- BUFFER_READY,
- BUFFER_BUSY,
- BUFFER_DONE,
- };
- /* raw camera data <- sbuf (urb transfer buf) */
- struct stv680_scratch {
- unsigned char *data;
- volatile int state;
- int offset;
- int length;
- };
- /* processed data for display ends up here, after bayer */
- struct stv680_frame {
- unsigned char *data; /* Frame buffer */
- volatile int grabstate; /* State of grabbing */
- unsigned char *curline;
- int curlinepix;
- int curpix;
- };
- /* this is almost the video structure uvd_t, with extra parameters for stv */
- struct usb_stv {
- struct video_device vdev;
- struct usb_device *udev;
- unsigned char bulk_in_endpointAddr; /* __u8 the address of the bulk in endpoint */
- char *camera_name;
- unsigned int VideoMode; /* 0x0100 = VGA, 0x0000 = CIF, 0x0300 = QVGA */
- int SupportedModes;
- int CIF;
- int VGA;
- int QVGA;
- int cwidth; /* camera width */
- int cheight; /* camera height */
- int maxwidth; /* max video width */
- int maxheight; /* max video height */
- int vwidth; /* current width for video window */
- int vheight; /* current height for video window */
- unsigned long int rawbufsize;
- unsigned long int maxframesize; /* rawbufsize * 3 for RGB */
- int origGain;
- int origMode; /* original camera mode */
- struct semaphore lock; /* to lock the structure */
- int user; /* user count for exclusive use */
- int removed; /* device disconnected */
- int streaming; /* Are we streaming video? */
- char *fbuf; /* Videodev buffer area */
- urb_t *urb[STV680_NUMSBUF]; /* # of queued bulk transfers */
- int curframe; /* Current receiving frame */
- struct stv680_frame frame[STV680_NUMFRAMES]; /* # frames supported by v4l part */
- int readcount;
- int framecount;
- int error;
- int dropped;
- int scratch_next;
- int scratch_use;
- int scratch_overflow;
- struct stv680_scratch scratch[STV680_NUMSCRATCH]; /* for decoders */
- struct stv680_sbuf sbuf[STV680_NUMSBUF];
- unsigned int brightness;
- unsigned int chgbright;
- unsigned int whiteness;
- unsigned int colour;
- unsigned int contrast;
- unsigned int hue;
- unsigned int palette;
- unsigned int depth; /* rgb24 in bits */
- wait_queue_head_t wq; /* Processes waiting */
- struct proc_dir_entry *proc_entry; /* /proc/stv680/videoX */
- int nullpackets;
- };
- unsigned char red[256] = {
- 0, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
- 18, 18, 18, 18, 18, 18, 18, 25, 30, 35, 38, 42,
- 44, 47, 50, 53, 54, 57, 59, 61, 63, 65, 67, 69,
- 71, 71, 73, 75, 77, 78, 80, 81, 82, 84, 85, 87,
- 88, 89, 90, 91, 93, 94, 95, 97, 98, 98, 99, 101,
- 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113,
- 114, 115, 116, 116, 117, 118, 119, 120, 121, 122, 123, 124,
- 125, 125, 126, 127, 128, 129, 129, 130, 131, 132, 133, 134,
- 134, 135, 135, 136, 137, 138, 139, 140, 140, 141, 142, 143,
- 143, 143, 144, 145, 146, 147, 147, 148, 149, 150, 150, 151,
- 152, 152, 152, 153, 154, 154, 155, 156, 157, 157, 158, 159,
- 159, 160, 161, 161, 161, 162, 163, 163, 164, 165, 165, 166,
- 167, 167, 168, 168, 169, 170, 170, 170, 171, 171, 172, 173,
- 173, 174, 174, 175, 176, 176, 177, 178, 178, 179, 179, 179,
- 180, 180, 181, 181, 182, 183, 183, 184, 184, 185, 185, 186,
- 187, 187, 188, 188, 188, 188, 189, 190, 190, 191, 191, 192,
- 192, 193, 193, 194, 195, 195, 196, 196, 197, 197, 197, 197,
- 198, 198, 199, 199, 200, 201, 201, 202, 202, 203, 203, 204,
- 204, 205, 205, 206, 206, 206, 206, 207, 207, 208, 208, 209,
- 209, 210, 210, 211, 211, 212, 212, 213, 213, 214, 214, 215,
- 215, 215, 215, 216, 216, 217, 217, 218, 218, 218, 219, 219,
- 220, 220, 221, 221
- };
- unsigned char green[256] = {
- 0, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,
- 21, 21, 21, 21, 21, 21, 21, 28, 34, 39, 43, 47,
- 50, 53, 56, 59, 61, 64, 66, 68, 71, 73, 75, 77,
- 79, 80, 82, 84, 86, 87, 89, 91, 92, 94, 95, 97,
- 98, 100, 101, 102, 104, 105, 106, 108, 109, 110, 111, 113,
- 114, 115, 116, 117, 118, 120, 121, 122, 123, 124, 125, 126,
- 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138,
- 139, 140, 141, 142, 143, 144, 144, 145, 146, 147, 148, 149,
- 150, 151, 151, 152, 153, 154, 155, 156, 156, 157, 158, 159,
- 160, 160, 161, 162, 163, 164, 164, 165, 166, 167, 167, 168,
- 169, 170, 170, 171, 172, 172, 173, 174, 175, 175, 176, 177,
- 177, 178, 179, 179, 180, 181, 182, 182, 183, 184, 184, 185,
- 186, 186, 187, 187, 188, 189, 189, 190, 191, 191, 192, 193,
- 193, 194, 194, 195, 196, 196, 197, 198, 198, 199, 199, 200,
- 201, 201, 202, 202, 203, 204, 204, 205, 205, 206, 206, 207,
- 208, 208, 209, 209, 210, 210, 211, 212, 212, 213, 213, 214,
- 214, 215, 215, 216, 217, 217, 218, 218, 219, 219, 220, 220,
- 221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227,
- 227, 228, 228, 229, 229, 230, 230, 231, 231, 232, 232, 233,
- 233, 234, 234, 235, 235, 236, 236, 237, 237, 238, 238, 239,
- 239, 240, 240, 241, 241, 242, 242, 243, 243, 243, 244, 244,
- 245, 245, 246, 246
- };
- unsigned char blue[256] = {
- 0, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,
- 23, 23, 23, 23, 23, 23, 23, 30, 37, 42, 47, 51,
- 55, 58, 61, 64, 67, 70, 72, 74, 78, 80, 82, 84,
- 86, 88, 90, 92, 94, 95, 97, 100, 101, 103, 104, 106,
- 107, 110, 111, 112, 114, 115, 116, 118, 119, 121, 122, 124,
- 125, 126, 127, 128, 129, 132, 133, 134, 135, 136, 137, 138,
- 139, 140, 141, 143, 144, 145, 146, 147, 148, 149, 150, 151,
- 152, 154, 155, 156, 157, 158, 158, 159, 160, 161, 162, 163,
- 165, 166, 166, 167, 168, 169, 170, 171, 171, 172, 173, 174,
- 176, 176, 177, 178, 179, 180, 180, 181, 182, 183, 183, 184,
- 185, 187, 187, 188, 189, 189, 190, 191, 192, 192, 193, 194,
- 194, 195, 196, 196, 198, 199, 200, 200, 201, 202, 202, 203,
- 204, 204, 205, 205, 206, 207, 207, 209, 210, 210, 211, 212,
- 212, 213, 213, 214, 215, 215, 216, 217, 217, 218, 218, 220,
- 221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227,
- 228, 228, 229, 229, 231, 231, 232, 233, 233, 234, 234, 235,
- 235, 236, 236, 237, 238, 238, 239, 239, 240, 240, 242, 242,
- 243, 243, 244, 244, 245, 246, 246, 247, 247, 248, 248, 249,
- 249, 250, 250, 251, 251, 253, 253, 254, 254, 255, 255, 255,
- 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
- 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
- 255, 255, 255, 255
- };