summaryrefslogtreecommitdiffstats
path: root/drivers/usb/media/stv680.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb/media/stv680.h')
-rw-r--r--drivers/usb/media/stv680.h222
1 files changed, 222 insertions, 0 deletions
diff --git a/drivers/usb/media/stv680.h b/drivers/usb/media/stv680.h
new file mode 100644
index 000000000000..7e0e314dcf12
--- /dev/null
+++ b/drivers/usb/media/stv680.h
@@ -0,0 +1,222 @@
+/****************************************************************************
+ *
+ * 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
+};