1/**************************************************************************** 2 * 3 * Filename: stv680.h 4 * 5 * Description: 6 * This is a USB driver for STV0680 based usb video cameras. 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 21 * 22 ****************************************************************************/ 23 24/* size of usb transfers */ 25#define STV680_PACKETSIZE 4096 26 27/* number of queued bulk transfers to use, may have problems if > 1 */ 28#define STV680_NUMSBUF 1 29 30/* number of frames supported by the v4l part */ 31#define STV680_NUMFRAMES 2 32 33/* scratch buffers for passing data to the decoders: 2 or 4 are good */ 34#define STV680_NUMSCRATCH 2 35 36/* number of nul sized packets to receive before kicking the camera */ 37#define STV680_MAX_NULLPACKETS 200 38 39/* number of decoding errors before kicking the camera */ 40#define STV680_MAX_ERRORS 100 41 42#define USB_PENCAM_VENDOR_ID 0x0553 43#define USB_PENCAM_PRODUCT_ID 0x0202 44 45#define USB_CREATIVEGOMINI_VENDOR_ID 0x041e 46#define USB_CREATIVEGOMINI_PRODUCT_ID 0x4007 47 48#define PENCAM_TIMEOUT 1000 49/* fmt 4 */ 50#define STV_VIDEO_PALETTE VIDEO_PALETTE_RGB24 51 52static struct usb_device_id device_table[] = { 53 {USB_DEVICE (USB_PENCAM_VENDOR_ID, USB_PENCAM_PRODUCT_ID)}, 54 {USB_DEVICE (USB_CREATIVEGOMINI_VENDOR_ID, USB_CREATIVEGOMINI_PRODUCT_ID)}, 55 {} 56}; 57MODULE_DEVICE_TABLE (usb, device_table); 58 59struct stv680_sbuf { 60 unsigned char *data; 61}; 62 63enum { 64 FRAME_UNUSED, /* Unused (no MCAPTURE) */ 65 FRAME_READY, /* Ready to start grabbing */ 66 FRAME_GRABBING, /* In the process of being grabbed into */ 67 FRAME_DONE, /* Finished grabbing, but not been synced yet */ 68 FRAME_ERROR, /* Something bad happened while processing */ 69}; 70 71enum { 72 BUFFER_UNUSED, 73 BUFFER_READY, 74 BUFFER_BUSY, 75 BUFFER_DONE, 76}; 77 78/* raw camera data <- sbuf (urb transfer buf) */ 79struct stv680_scratch { 80 unsigned char *data; 81 volatile int state; 82 int offset; 83 int length; 84}; 85 86/* processed data for display ends up here, after bayer */ 87struct stv680_frame { 88 unsigned char *data; /* Frame buffer */ 89 volatile int grabstate; /* State of grabbing */ 90 unsigned char *curline; 91 int curlinepix; 92 int curpix; 93}; 94 95/* this is almost the video structure uvd_t, with extra parameters for stv */ 96struct usb_stv { 97 struct video_device *vdev; 98 99 struct usb_device *udev; 100 101 unsigned char bulk_in_endpointAddr; /* __u8 the address of the bulk in endpoint */ 102 char *camera_name; 103 104 unsigned int VideoMode; /* 0x0100 = VGA, 0x0000 = CIF, 0x0300 = QVGA */ 105 int SupportedModes; 106 int CIF; 107 int VGA; 108 int QVGA; 109 int cwidth; /* camera width */ 110 int cheight; /* camera height */ 111 int maxwidth; /* max video width */ 112 int maxheight; /* max video height */ 113 int vwidth; /* current width for video window */ 114 int vheight; /* current height for video window */ 115 unsigned long int rawbufsize; 116 unsigned long int maxframesize; /* rawbufsize * 3 for RGB */ 117 118 int origGain; 119 int origMode; /* original camera mode */ 120 121 struct mutex lock; /* to lock the structure */ 122 int user; /* user count for exclusive use */ 123 int removed; /* device disconnected */ 124 int streaming; /* Are we streaming video? */ 125 char *fbuf; /* Videodev buffer area */ 126 struct urb *urb[STV680_NUMSBUF]; /* # of queued bulk transfers */ 127 int curframe; /* Current receiving frame */ 128 struct stv680_frame frame[STV680_NUMFRAMES]; /* # frames supported by v4l part */ 129 int readcount; 130 int framecount; 131 int error; 132 int dropped; 133 int scratch_next; 134 int scratch_use; 135 int scratch_overflow; 136 struct stv680_scratch scratch[STV680_NUMSCRATCH]; /* for decoders */ 137 struct stv680_sbuf sbuf[STV680_NUMSBUF]; 138 139 unsigned int brightness; 140 unsigned int chgbright; 141 unsigned int whiteness; 142 unsigned int colour; 143 unsigned int contrast; 144 unsigned int hue; 145 unsigned int palette; 146 unsigned int depth; /* rgb24 in bits */ 147 148 wait_queue_head_t wq; /* Processes waiting */ 149 150 int nullpackets; 151}; 152 153 154static const unsigned char red[256] = { 155 0, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 156 18, 18, 18, 18, 18, 18, 18, 25, 30, 35, 38, 42, 157 44, 47, 50, 53, 54, 57, 59, 61, 63, 65, 67, 69, 158 71, 71, 73, 75, 77, 78, 80, 81, 82, 84, 85, 87, 159 88, 89, 90, 91, 93, 94, 95, 97, 98, 98, 99, 101, 160 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 161 114, 115, 116, 116, 117, 118, 119, 120, 121, 122, 123, 124, 162 125, 125, 126, 127, 128, 129, 129, 130, 131, 132, 133, 134, 163 134, 135, 135, 136, 137, 138, 139, 140, 140, 141, 142, 143, 164 143, 143, 144, 145, 146, 147, 147, 148, 149, 150, 150, 151, 165 152, 152, 152, 153, 154, 154, 155, 156, 157, 157, 158, 159, 166 159, 160, 161, 161, 161, 162, 163, 163, 164, 165, 165, 166, 167 167, 167, 168, 168, 169, 170, 170, 170, 171, 171, 172, 173, 168 173, 174, 174, 175, 176, 176, 177, 178, 178, 179, 179, 179, 169 180, 180, 181, 181, 182, 183, 183, 184, 184, 185, 185, 186, 170 187, 187, 188, 188, 188, 188, 189, 190, 190, 191, 191, 192, 171 192, 193, 193, 194, 195, 195, 196, 196, 197, 197, 197, 197, 172 198, 198, 199, 199, 200, 201, 201, 202, 202, 203, 203, 204, 173 204, 205, 205, 206, 206, 206, 206, 207, 207, 208, 208, 209, 174 209, 210, 210, 211, 211, 212, 212, 213, 213, 214, 214, 215, 175 215, 215, 215, 216, 216, 217, 217, 218, 218, 218, 219, 219, 176 220, 220, 221, 221 177}; 178 179static const unsigned char green[256] = { 180 0, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 181 21, 21, 21, 21, 21, 21, 21, 28, 34, 39, 43, 47, 182 50, 53, 56, 59, 61, 64, 66, 68, 71, 73, 75, 77, 183 79, 80, 82, 84, 86, 87, 89, 91, 92, 94, 95, 97, 184 98, 100, 101, 102, 104, 105, 106, 108, 109, 110, 111, 113, 185 114, 115, 116, 117, 118, 120, 121, 122, 123, 124, 125, 126, 186 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 187 139, 140, 141, 142, 143, 144, 144, 145, 146, 147, 148, 149, 188 150, 151, 151, 152, 153, 154, 155, 156, 156, 157, 158, 159, 189 160, 160, 161, 162, 163, 164, 164, 165, 166, 167, 167, 168, 190 169, 170, 170, 171, 172, 172, 173, 174, 175, 175, 176, 177, 191 177, 178, 179, 179, 180, 181, 182, 182, 183, 184, 184, 185, 192 186, 186, 187, 187, 188, 189, 189, 190, 191, 191, 192, 193, 193 193, 194, 194, 195, 196, 196, 197, 198, 198, 199, 199, 200, 194 201, 201, 202, 202, 203, 204, 204, 205, 205, 206, 206, 207, 195 208, 208, 209, 209, 210, 210, 211, 212, 212, 213, 213, 214, 196 214, 215, 215, 216, 217, 217, 218, 218, 219, 219, 220, 220, 197 221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227, 198 227, 228, 228, 229, 229, 230, 230, 231, 231, 232, 232, 233, 199 233, 234, 234, 235, 235, 236, 236, 237, 237, 238, 238, 239, 200 239, 240, 240, 241, 241, 242, 242, 243, 243, 243, 244, 244, 201 245, 245, 246, 246 202}; 203 204static const unsigned char blue[256] = { 205 0, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 206 23, 23, 23, 23, 23, 23, 23, 30, 37, 42, 47, 51, 207 55, 58, 61, 64, 67, 70, 72, 74, 78, 80, 82, 84, 208 86, 88, 90, 92, 94, 95, 97, 100, 101, 103, 104, 106, 209 107, 110, 111, 112, 114, 115, 116, 118, 119, 121, 122, 124, 210 125, 126, 127, 128, 129, 132, 133, 134, 135, 136, 137, 138, 211 139, 140, 141, 143, 144, 145, 146, 147, 148, 149, 150, 151, 212 152, 154, 155, 156, 157, 158, 158, 159, 160, 161, 162, 163, 213 165, 166, 166, 167, 168, 169, 170, 171, 171, 172, 173, 174, 214 176, 176, 177, 178, 179, 180, 180, 181, 182, 183, 183, 184, 215 185, 187, 187, 188, 189, 189, 190, 191, 192, 192, 193, 194, 216 194, 195, 196, 196, 198, 199, 200, 200, 201, 202, 202, 203, 217 204, 204, 205, 205, 206, 207, 207, 209, 210, 210, 211, 212, 218 212, 213, 213, 214, 215, 215, 216, 217, 217, 218, 218, 220, 219 221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227, 220 228, 228, 229, 229, 231, 231, 232, 233, 233, 234, 234, 235, 221 235, 236, 236, 237, 238, 238, 239, 239, 240, 240, 242, 242, 222 243, 243, 244, 244, 245, 246, 246, 247, 247, 248, 248, 249, 223 249, 250, 250, 251, 251, 253, 253, 254, 254, 255, 255, 255, 224 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 225 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 226 255, 255, 255, 255 227}; 228