ultracam.c

基于S3CEB2410平台LINUX操作系统下 USB驱动源代码

		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 ,const struct usb_device_id *devid)
{
	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);