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/****************************************************************************
*
* 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 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 */
struct urb *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 */
int nullpackets;
};
static 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
};
static 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
};
static 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
};
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