patch-2.4.11-dontuse linux/drivers/usb/ultracam.c

• Lines: 711
• Date: Fri Oct 5 12:04:51 2001
• Orig file: v2.4.10/linux/drivers/usb/ultracam.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.10/linux/drivers/usb/ultracam.c linux/drivers/usb/ultracam.c
@@ -0,0 +1,710 @@
+/*
+ * USB NB Camera driver
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/wrapper.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include "usbvideo.h"
+
+#define	ULTRACAM_VENDOR_ID	0x0461
+#define	ULTRACAM_PRODUCT_ID	0x0813
+
+#define MAX_CAMERAS		4	/* How many devices we allow to connect */
+
+/*
+ * This structure lives in uvd_t->user field.
+ */
+typedef struct {
+	int initialized;	/* Had we already sent init sequence? */
+	int camera_model;	/* What type of IBM camera we got? */
+        int has_hdr;
+} ultracam_t;
+#define	ULTRACAM_T(uvd)	((ultracam_t *)((uvd)->user_data))
+
+static usbvideo_t *cams = NULL;
+
+static int debug = 0;
+
+static int flags = 0; /* FLAGS_DISPLAY_HINTS | FLAGS_OVERLAY_STATS; */
+
+static const int min_canvasWidth  = 8;
+static const int min_canvasHeight = 4;
+
+//static int lighting = 1; /* Medium */
+
+#define SHARPNESS_MIN	0
+#define SHARPNESS_MAX	6
+//static int sharpness = 4; /* Low noise, good details */
+
+#define FRAMERATE_MIN	0
+#define FRAMERATE_MAX	6
+static int framerate = -1;
+
+/*
+ * Here we define several initialization variables. They may
+ * be used to automatically set color, hue, brightness and
+ * contrast to desired values. This is particularly useful in
+ * case of webcams (which have no controls and no on-screen
+ * output) and also when a client V4L software is used that
+ * does not have some of those controls. In any case it's
+ * good to have startup values as options.
+ *
+ * These values are all in [0..255] range. This simplifies
+ * operation. Note that actual values of V4L variables may
+ * be scaled up (as much as << 8). User can see that only
+ * on overlay output, however, or through a V4L client.
+ */
+static int init_brightness = 128;
+static int init_contrast = 192;
+static int init_color = 128;
+static int init_hue = 128;
+static int hue_correction = 128;
+
+MODULE_PARM(debug, "i");
+MODULE_PARM_DESC(debug, "Debug level: 0-9 (default=0)");
+MODULE_PARM(flags, "i");
+MODULE_PARM_DESC(flags,
+		"Bitfield: 0=VIDIOCSYNC, "
+		"1=B/W, "
+		"2=show hints, "
+		"3=show stats, "
+		"4=test pattern, "
+		"5=separate frames, "
+		"6=clean frames");
+MODULE_PARM(framerate, "i");
+MODULE_PARM_DESC(framerate, "Framerate setting: 0=slowest, 6=fastest (default=2)");
+MODULE_PARM(lighting, "i");
+MODULE_PARM_DESC(lighting, "Photosensitivity: 0=bright, 1=medium (default), 2=low light");
+MODULE_PARM(sharpness, "i");
+MODULE_PARM_DESC(sharpness, "Model1 noise reduction: 0=smooth, 6=sharp (default=4)");
+
+MODULE_PARM(init_brightness, "i");
+MODULE_PARM_DESC(init_brightness, "Brightness preconfiguration: 0-255 (default=128)");
+MODULE_PARM(init_contrast, "i");
+MODULE_PARM_DESC(init_contrast, "Contrast preconfiguration: 0-255 (default=192)");
+MODULE_PARM(init_color, "i");
+MODULE_PARM_DESC(init_color, "Color preconfiguration: 0-255 (default=128)");
+MODULE_PARM(init_hue, "i");
+MODULE_PARM_DESC(init_hue, "Hue preconfiguration: 0-255 (default=128)");
+MODULE_PARM(hue_correction, "i");
+MODULE_PARM_DESC(hue_correction, "YUV colorspace regulation: 0-255 (default=128)");
+
+/*
+ * ultracam_ProcessIsocData()
+ *
+ * Generic routine to parse the ring queue data. It employs either
+ * ultracam_find_header() or ultracam_parse_lines() to do most
+ * of work.
+ *
+ * 02-Nov-2000 First (mostly dummy) version.
+ * 06-Nov-2000 Rewrote to dump all data into frame.
+ */
+void ultracam_ProcessIsocData(uvd_t *uvd, usbvideo_frame_t *frame)
+{
+	int n;
+
+	assert(uvd != NULL);
+	assert(frame != NULL);
+
+	/* Try to move data from queue into frame buffer */
+	n = RingQueue_GetLength(&uvd->dp);
+	if (n > 0) {
+		int m;
+		/* See how much spare we have left */
+		m = uvd->max_frame_size - frame->seqRead_Length;
+		if (n > m)
+			n = m;
+		/* Now move that much data into frame buffer */
+		RingQueue_Dequeue(
+			&uvd->dp,
+			frame->data + frame->seqRead_Length,
+			m);
+		frame->seqRead_Length += m;
+	}
+	/* See if we filled the frame */
+	if (frame->seqRead_Length >= uvd->max_frame_size) {
+		frame->frameState = FrameState_Done;
+		uvd->curframe = -1;
+		uvd->stats.frame_num++;
+	}
+}
+
+/*
+ * ultracam_veio()
+ *
+ * History:
+ * 1/27/00  Added check for dev == NULL; this happens if camera is unplugged.
+ */
+static int ultracam_veio(
+	uvd_t *uvd,
+	unsigned char req,
+	unsigned short value,
+	unsigned short index,
+	int is_out)
+{
+	static const char proc[] = "ultracam_veio";
+	unsigned char cp[8] /* = { 0xde, 0xad, 0xbe, 0xef, 0xde, 0xad, 0xbe, 0xef } */;
+	int i;
+
+	if (!CAMERA_IS_OPERATIONAL(uvd))
+		return 0;
+
+	if (!is_out) {
+		i = usb_control_msg(
+			uvd->dev,
+			usb_rcvctrlpipe(uvd->dev, 0),
+			req,
+			USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			value,
+			index,
+			cp,
+			sizeof(cp),
+			HZ);
+#if 1
+		info("USB => %02x%02x%02x%02x%02x%02x%02x%02x "
+		       "(req=$%02x val=$%04x ind=$%04x)",
+		       cp[0],cp[1],cp[2],cp[3],cp[4],cp[5],cp[6],cp[7],
+		       req, value, index);
+#endif
+	} else {
+		i = usb_control_msg(
+			uvd->dev,
+			usb_sndctrlpipe(uvd->dev, 0),
+			req,
+			USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
+			value,
+			index,
+			NULL,
+			0,
+			HZ);
+	}
+	if (i < 0) {
+		err("%s: ERROR=%d. Camera stopped; Reconnect or reload driver.",
+		    proc, i);
+		uvd->last_error = i;
+	}
+	return i;
+}
+
+/*
+ * ultracam_calculate_fps()
+ */
+static int ultracam_calculate_fps(uvd_t *uvd)
+{
+	return 3 + framerate*4 + framerate/2;
+}
+
+/*
+ * ultracam_adjust_contrast()
+ */
+static void ultracam_adjust_contrast(uvd_t *uvd)
+{
+}
+
+/*
+ * ultracam_change_lighting_conditions()
+ */
+static void ultracam_change_lighting_conditions(uvd_t *uvd)
+{
+}
+
+/*
+ * ultracam_set_sharpness()
+ *
+ * Cameras model 1 have internal smoothing feature. It is controlled by value in
+ * range [0..6], where 0 is most smooth and 6 is most sharp (raw image, I guess).
+ * Recommended value is 4. Cameras model 2 do not have this feature at all.
+ */
+static void ultracam_set_sharpness(uvd_t *uvd)
+{
+}
+
+/*
+ * ultracam_set_brightness()
+ *
+ * This procedure changes brightness of the picture.
+ */
+static void ultracam_set_brightness(uvd_t *uvd)
+{
+}
+
+static void ultracam_set_hue(uvd_t *uvd)
+{
+}
+
+/*
+ * ultracam_adjust_picture()
+ *
+ * This procedure gets called from V4L interface to update picture settings.
+ * Here we change brightness and contrast.
+ */
+static void ultracam_adjust_picture(uvd_t *uvd)
+{
+	ultracam_adjust_contrast(uvd);
+	ultracam_set_brightness(uvd);
+	ultracam_set_hue(uvd);
+}
+
+/*
+ * ultracam_video_stop()
+ *
+ * This code tells camera to stop streaming. The interface remains
+ * configured and bandwidth - claimed.
+ */
+static void ultracam_video_stop(uvd_t *uvd)
+{
+}
+
+/*
+ * ultracam_reinit_iso()
+ *
+ * This procedure sends couple of commands to the camera and then
+ * resets the video pipe. This sequence was observed to reinit the
+ * camera or, at least, to initiate ISO data stream.
+ */
+static void ultracam_reinit_iso(uvd_t *uvd, int do_stop)
+{
+}
+
+static void ultracam_video_start(uvd_t *uvd)
+{
+	ultracam_change_lighting_conditions(uvd);
+	ultracam_set_sharpness(uvd);
+	ultracam_reinit_iso(uvd, 0);
+}
+
+static int ultracam_resetPipe(uvd_t *uvd)
+{
+	usb_clear_halt(uvd->dev, uvd->video_endp);
+	return 0;
+}
+
+static int ultracam_alternateSetting(uvd_t *uvd, int setting)
+{
+	static const char proc[] = "ultracam_alternateSetting";
+	int i;
+	i = usb_set_interface(uvd->dev, uvd->iface, setting);
+	if (i < 0) {
+		err("%s: usb_set_interface error", proc);
+		uvd->last_error = i;
+		return -EBUSY;
+	}
+	return 0;
+}
+
+/*
+ * Return negative code on failure, 0 on success.
+ */
+static int ultracam_setup_on_open(uvd_t *uvd)
+{
+	int setup_ok = 0; /* Success by default */
+	/* Send init sequence only once, it's large! */
+	if (!ULTRACAM_T(uvd)->initialized) {
+		ultracam_alternateSetting(uvd, 0x04);
+		ultracam_alternateSetting(uvd, 0x00);
+		ultracam_veio(uvd, 0x02, 0x0004, 0x000b, 1);
+		ultracam_veio(uvd, 0x02, 0x0001, 0x0005, 1);
+		ultracam_veio(uvd, 0x02, 0x8000, 0x0000, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1);
+		ultracam_veio(uvd, 0x00, 0x00b0, 0x0001, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x0002, 1);
+		ultracam_veio(uvd, 0x00, 0x000c, 0x0003, 1);
+		ultracam_veio(uvd, 0x00, 0x000b, 0x0004, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x0005, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x0006, 1);
+		ultracam_veio(uvd, 0x00, 0x0079, 0x0007, 1);
+		ultracam_veio(uvd, 0x00, 0x003b, 0x0008, 1);
+		ultracam_veio(uvd, 0x00, 0x0002, 0x000f, 1);
+		ultracam_veio(uvd, 0x00, 0x0001, 0x0010, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x0011, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00bf, 1);
+		ultracam_veio(uvd, 0x00, 0x0001, 0x00c0, 1);
+		ultracam_veio(uvd, 0x00, 0x0010, 0x00cb, 1);
+		ultracam_veio(uvd, 0x01, 0x00a4, 0x0001, 1);
+		ultracam_veio(uvd, 0x01, 0x0010, 0x0002, 1);
+		ultracam_veio(uvd, 0x01, 0x0066, 0x0007, 1);
+		ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1);
+		ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1);
+		ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1);
+		ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1);
+		ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1);
+		ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1);
+		ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1);
+		ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1);
+		ultracam_veio(uvd, 0x01, 0x000b, 0x0011, 1);
+		ultracam_veio(uvd, 0x01, 0x0001, 0x0012, 1);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x0013, 1);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x0014, 1);
+		ultracam_veio(uvd, 0x01, 0x0087, 0x0051, 1);
+		ultracam_veio(uvd, 0x01, 0x0040, 0x0052, 1);
+		ultracam_veio(uvd, 0x01, 0x0058, 0x0053, 1);
+		ultracam_veio(uvd, 0x01, 0x0040, 0x0054, 1);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x0040, 1);
+		ultracam_veio(uvd, 0x01, 0x0010, 0x0041, 1);
+		ultracam_veio(uvd, 0x01, 0x0020, 0x0042, 1);
+		ultracam_veio(uvd, 0x01, 0x0030, 0x0043, 1);
+		ultracam_veio(uvd, 0x01, 0x0040, 0x0044, 1);
+		ultracam_veio(uvd, 0x01, 0x0050, 0x0045, 1);
+		ultracam_veio(uvd, 0x01, 0x0060, 0x0046, 1);
+		ultracam_veio(uvd, 0x01, 0x0070, 0x0047, 1);
+		ultracam_veio(uvd, 0x01, 0x0080, 0x0048, 1);
+		ultracam_veio(uvd, 0x01, 0x0090, 0x0049, 1);
+		ultracam_veio(uvd, 0x01, 0x00a0, 0x004a, 1);
+		ultracam_veio(uvd, 0x01, 0x00b0, 0x004b, 1);
+		ultracam_veio(uvd, 0x01, 0x00c0, 0x004c, 1);
+		ultracam_veio(uvd, 0x01, 0x00d0, 0x004d, 1);
+		ultracam_veio(uvd, 0x01, 0x00e0, 0x004e, 1);
+		ultracam_veio(uvd, 0x01, 0x00f0, 0x004f, 1);
+		ultracam_veio(uvd, 0x01, 0x00ff, 0x0050, 1);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x0056, 1);
+		ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0080, 0x00c1, 1);
+		ultracam_veio(uvd, 0x00, 0x0004, 0x00c2, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0002, 0x00c1, 1);
+		ultracam_veio(uvd, 0x00, 0x0020, 0x00c2, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0040, 0x00c1, 1);
+		ultracam_veio(uvd, 0x00, 0x0017, 0x00c2, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c3, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c4, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c5, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c6, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c7, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c8, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c9, 1);
+		ultracam_veio(uvd, 0x00, 0x00c0, 0x00c1, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00c2, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+		ultracam_veio(uvd, 0x02, 0xc040, 0x0001, 1);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x0008, 0);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x0009, 0);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 0);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x000b, 0);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x000c, 0);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x000d, 0);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x000e, 0);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x000f, 0);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x0010, 0);
+		ultracam_veio(uvd, 0x01, 0x000b, 0x0008, 1);
+		ultracam_veio(uvd, 0x01, 0x0034, 0x0009, 1);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x000a, 1);
+		ultracam_veio(uvd, 0x01, 0x002e, 0x000b, 1);
+		ultracam_veio(uvd, 0x01, 0x00d6, 0x000c, 1);
+		ultracam_veio(uvd, 0x01, 0x00fc, 0x000d, 1);
+		ultracam_veio(uvd, 0x01, 0x00f1, 0x000e, 1);
+		ultracam_veio(uvd, 0x01, 0x00da, 0x000f, 1);
+		ultracam_veio(uvd, 0x01, 0x0036, 0x0010, 1);
+		ultracam_veio(uvd, 0x01, 0x0000, 0x0001, 0);
+		ultracam_veio(uvd, 0x01, 0x0064, 0x0001, 1);
+		ultracam_veio(uvd, 0x01, 0x0059, 0x0051, 1);
+		ultracam_veio(uvd, 0x01, 0x003f, 0x0052, 1);
+		ultracam_veio(uvd, 0x01, 0x0094, 0x0053, 1);
+		ultracam_veio(uvd, 0x01, 0x00ff, 0x0011, 1);
+		ultracam_veio(uvd, 0x01, 0x0003, 0x0012, 1);
+		ultracam_veio(uvd, 0x01, 0x00f7, 0x0013, 1);
+		ultracam_veio(uvd, 0x00, 0x0009, 0x0011, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x0001, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x0000, 1);
+		ultracam_veio(uvd, 0x00, 0x0020, 0x00c1, 1);
+		ultracam_veio(uvd, 0x00, 0x0010, 0x00c2, 1);
+		ultracam_veio(uvd, 0x00, 0x0000, 0x00ca, 1);
+		ultracam_alternateSetting(uvd, 0x04);
+		ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1);
+		ultracam_veio(uvd, 0x02, 0x0000, 0x0001, 1);
+		ultracam_veio(uvd, 0x02, 0x0000, 0x0006, 1);
+		ultracam_veio(uvd, 0x02, 0x9000, 0x0007, 1);
+		ultracam_veio(uvd, 0x02, 0x0042, 0x0001, 1);
+		ultracam_veio(uvd, 0x02, 0x0000, 0x000b, 0);
+		ultracam_resetPipe(uvd);
+		ULTRACAM_T(uvd)->initialized = (setup_ok != 0);
+	}
+	return setup_ok;
+}
+
+static void ultracam_configure_video(uvd_t *uvd)
+{
+	if (uvd == NULL)
+		return;
+
+	RESTRICT_TO_RANGE(init_brightness, 0, 255);
+	RESTRICT_TO_RANGE(init_contrast, 0, 255);
+	RESTRICT_TO_RANGE(init_color, 0, 255);
+	RESTRICT_TO_RANGE(init_hue, 0, 255);
+	RESTRICT_TO_RANGE(hue_correction, 0, 255);
+
+	memset(&uvd->vpic, 0, sizeof(uvd->vpic));
+	memset(&uvd->vpic_old, 0x55, sizeof(uvd->vpic_old));
+
+	uvd->vpic.colour = init_color << 8;
+	uvd->vpic.hue = init_hue << 8;
+	uvd->vpic.brightness = init_brightness << 8;
+	uvd->vpic.contrast = init_contrast << 8;
+	uvd->vpic.whiteness = 105 << 8; /* This one isn't used */
+	uvd->vpic.depth = 24;
+	uvd->vpic.palette = VIDEO_PALETTE_RGB24;
+
+	memset(&uvd->vcap, 0, sizeof(uvd->vcap));
+	strcpy(uvd->vcap.name, "IBM Ultra Camera");
+	uvd->vcap.type = VID_TYPE_CAPTURE;
+	uvd->vcap.channels = 1;
+	uvd->vcap.audios = 0;
+	uvd->vcap.maxwidth = VIDEOSIZE_X(uvd->canvas);
+	uvd->vcap.maxheight = VIDEOSIZE_Y(uvd->canvas);
+	uvd->vcap.minwidth = min_canvasWidth;
+	uvd->vcap.minheight = min_canvasHeight;
+
+	memset(&uvd->vchan, 0, sizeof(uvd->vchan));
+	uvd->vchan.flags = 0;
+	uvd->vchan.tuners = 0;
+	uvd->vchan.channel = 0;
+	uvd->vchan.type = VIDEO_TYPE_CAMERA;
+	strcpy(uvd->vchan.name, "Camera");
+}
+
+/*
+ * ultracam_probe()
+ *
+ * This procedure queries device descriptor and accepts the interface
+ * if it looks like our camera.
+ *
+ * History:
+ * 12-Nov-2000 Reworked to comply with new probe() signature.
+ * 23-Jan-2001 Added compatibility with 2.2.x kernels.
+ */
+static void *ultracam_probe(struct usb_device *dev, unsigned int ifnum
+#if defined(usb_device_id_ver)
+	,const struct usb_device_id *devid
+#endif
+	)
+{
+	uvd_t *uvd = NULL;
+	int i, nas;
+	int actInterface=-1, inactInterface=-1, maxPS=0;
+	unsigned char video_ep = 0;
+
+	if (debug >= 1)
+		info("ultracam_probe(%p,%u.)", dev, ifnum);
+
+	/* We don't handle multi-config cameras */
+	if (dev->descriptor.bNumConfigurations != 1)
+		return NULL;
+
+	/* Is it an IBM camera? */
+	if ((dev->descriptor.idVendor != ULTRACAM_VENDOR_ID) ||
+	    (dev->descriptor.idProduct != ULTRACAM_PRODUCT_ID))
+		return NULL;
+
+	info("IBM Ultra camera found (rev. 0x%04x)", dev->descriptor.bcdDevice);
+
+	/* Validate found interface: must have one ISO endpoint */
+	nas = dev->actconfig->interface[ifnum].num_altsetting;
+	if (debug > 0)
+		info("Number of alternate settings=%d.", nas);
+	if (nas < 8) {
+		err("Too few alternate settings for this camera!");
+		return NULL;
+	}
+	/* Validate all alternate settings */
+	for (i=0; i < nas; i++) {
+		const struct usb_interface_descriptor *interface;
+		const struct usb_endpoint_descriptor *endpoint;
+
+		interface = &dev->actconfig->interface[ifnum].altsetting[i];
+		if (interface->bNumEndpoints != 1) {
+			err("Interface %d. has %u. endpoints!",
+			    ifnum, (unsigned)(interface->bNumEndpoints));
+			return NULL;
+		}
+		endpoint = &interface->endpoint[0];
+		if (video_ep == 0)
+			video_ep = endpoint->bEndpointAddress;
+		else if (video_ep != endpoint->bEndpointAddress) {
+			err("Alternate settings have different endpoint addresses!");
+			return NULL;
+		}
+		if ((endpoint->bmAttributes & 0x03) != 0x01) {
+			err("Interface %d. has non-ISO endpoint!", ifnum);
+			return NULL;
+		}
+		if ((endpoint->bEndpointAddress & 0x80) == 0) {
+			err("Interface %d. has ISO OUT endpoint!", ifnum);
+			return NULL;
+		}
+		if (endpoint->wMaxPacketSize == 0) {
+			if (inactInterface < 0)
+				inactInterface = i;
+			else {
+				err("More than one inactive alt. setting!");
+				return NULL;
+			}
+		} else {
+			if (actInterface < 0) {
+				actInterface = i;
+				maxPS = endpoint->wMaxPacketSize;
+				if (debug > 0)
+					info("Active setting=%d. maxPS=%d.", i, maxPS);
+			} else {
+				/* Got another active alt. setting */
+				if (maxPS < endpoint->wMaxPacketSize) {
+					/* This one is better! */
+					actInterface = i;
+					maxPS = endpoint->wMaxPacketSize;
+					if (debug > 0) {
+						info("Even better ctive setting=%d. maxPS=%d.",
+						     i, maxPS);
+					}
+				}
+			}
+		}
+	}
+	if ((maxPS <= 0) || (actInterface < 0) || (inactInterface < 0)) {
+		err("Failed to recognize the camera!");
+		return NULL;
+	}
+
+	/* Code below may sleep, need to lock module while we are here */
+	MOD_INC_USE_COUNT;
+	uvd = usbvideo_AllocateDevice(cams);
+	if (uvd != NULL) {
+		/* Here uvd is a fully allocated uvd_t object */
+		uvd->flags = flags;
+		uvd->debug = debug;
+		uvd->dev = dev;
+		uvd->iface = ifnum;
+		uvd->ifaceAltInactive = inactInterface;
+		uvd->ifaceAltActive = actInterface;
+		uvd->video_endp = video_ep;
+		uvd->iso_packet_len = maxPS;
+		uvd->paletteBits = 1L << VIDEO_PALETTE_RGB24;
+		uvd->defaultPalette = VIDEO_PALETTE_RGB24;
+		uvd->canvas = VIDEOSIZE(640, 480);	/* FIXME */
+		uvd->videosize = uvd->canvas; /* ultracam_size_to_videosize(size);*/
+
+		/* Initialize ibmcam-specific data */
+		assert(ULTRACAM_T(uvd) != NULL);
+		ULTRACAM_T(uvd)->camera_model = 0; /* Not used yet */
+		ULTRACAM_T(uvd)->initialized = 0;
+
+		ultracam_configure_video(uvd);
+
+		i = usbvideo_RegisterVideoDevice(uvd);
+		if (i != 0) {
+			err("usbvideo_RegisterVideoDevice() failed.");
+			uvd = NULL;
+		}
+	}
+	MOD_DEC_USE_COUNT;
+	return uvd;
+}
+
+/*
+ * ultracam_init()
+ *
+ * This code is run to initialize the driver.
+ */
+static int __init ultracam_init(void)
+{
+	usbvideo_cb_t cbTbl;
+	memset(&cbTbl, 0, sizeof(cbTbl));
+	cbTbl.probe = ultracam_probe;
+	cbTbl.setupOnOpen = ultracam_setup_on_open;
+	cbTbl.videoStart = ultracam_video_start;
+	cbTbl.videoStop = ultracam_video_stop;
+	cbTbl.processData = ultracam_ProcessIsocData;
+	cbTbl.postProcess = usbvideo_DeinterlaceFrame;
+	cbTbl.adjustPicture = ultracam_adjust_picture;
+	cbTbl.getFPS = ultracam_calculate_fps;
+	return usbvideo_register(
+		&cams,
+		MAX_CAMERAS,
+		sizeof(ultracam_t),
+		"ultracam",
+		&cbTbl,
+		THIS_MODULE);
+}
+
+static void __exit ultracam_cleanup(void)
+{
+	usbvideo_Deregister(&cams);
+}
+
+#if defined(usb_device_id_ver)
+
+static __devinitdata struct usb_device_id id_table[] = {
+	{ USB_DEVICE(ULTRACAM_VENDOR_ID, ULTRACAM_PRODUCT_ID) },
+	{ }  /* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+
+#endif /* defined(usb_device_id_ver) */
+MODULE_LICENSE("GPL");
+
+module_init(ultracam_init);
+module_exit(ultracam_cleanup);