/*
* 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 int ultracam_probe(struct usb_interface *intf, const struct usb_device_id *devid)
{
struct usb_device *dev = interface_to_usbdev(intf);
struct uvd *uvd = NULL;
int ix, i, nas;
int actInterface=-1, inactInterface=-1, maxPS=0;
unsigned char video_ep = 0;
if (debug >= 1)
info("ultracam_probe(%p)", intf);
/* We don't handle multi-config cameras */
if (dev->descriptor.bNumConfigurations != 1)
return -ENODEV;
/* Is it an IBM camera? */
if ((dev->descriptor.idVendor != ULTRACAM_VENDOR_ID) ||
(dev->descriptor.idProduct != ULTRACAM_PRODUCT_ID))
return -ENODEV;
info("IBM Ultra camera found (rev. 0x%04x)", dev->descriptor.bcdDevice);
/* Validate found interface: must have one ISO endpoint */
nas = intf->num_altsetting;
if (debug > 0)
info("Number of alternate settings=%d.", nas);
if (nas < 8) {
err("Too few alternate settings for this camera!");
return -ENODEV;
}
/* Validate all alternate settings */
for (ix=0; ix < nas; ix++) {
const struct usb_host_interface *interface;
const struct usb_endpoint_descriptor *endpoint;
interface = &intf->altsetting[ix];
i = interface->desc.bAlternateSetting;
if (interface->desc.bNumEndpoints != 1) {
err("Interface %d. has %u. endpoints!",
interface->desc.bInterfaceNumber,
(unsigned)(interface->desc.bNumEndpoints));
return -ENODEV;
}
endpoint = &interface->endpoint[0].desc;
if (video_ep == 0)
video_ep = endpoint->bEndpointAddress;
else if (video_ep != endpoint->bEndpointAddress) {
err("Alternate settings have different endpoint addresses!");
return -ENODEV;
}
if ((endpoint->bmAttributes & 0x03) != 0x01) {
err("Interface %d. has non-ISO endpoint!",
interface->desc.bInterfaceNumber);
return -ENODEV;
}
if ((endpoint->bEndpointAddress & 0x80) == 0) {
err("Interface %d. has ISO OUT endpoint!",
interface->desc.bInterfaceNumber);
return -ENODEV;
}
if (endpoint->wMaxPacketSize == 0) {
if (inactInterface < 0)
inactInterface = i;
else {
err("More than one inactive alt. setting!");
return -ENODEV;
}
} 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 -ENODEV;
}
uvd = usbvideo_AllocateDevice(cams);
if (uvd != NULL) {
/* Here uvd is a fully allocated uvd object */
uvd->flags = flags;
uvd->debug = debug;
uvd->dev = dev;
uvd->iface = intf->altsetting->desc.bInterfaceNumber;
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;
}
}
if (uvd) {
usb_set_intfdata (intf, uvd);
return 0;
}
return -EIO;
}
static int konicawc_probe(struct usb_interface *intf, const struct usb_device_id *devid)
{
struct usb_device *dev = interface_to_usbdev(intf);
struct uvd *uvd = NULL;
int ix, i, nas;
int actInterface=-1, inactInterface=-1, maxPS=0;
unsigned char video_ep = 0;
DEBUG(1, "konicawc_probe(%p)", intf);
/* We don't handle multi-config cameras */
if (dev->descriptor.bNumConfigurations != 1)
return -ENODEV;
dev_info(&intf->dev, "Konica Webcam (rev. 0x%04x)\n",
le16_to_cpu(dev->descriptor.bcdDevice));
RESTRICT_TO_RANGE(speed, 0, MAX_SPEED);
/* Validate found interface: must have one ISO endpoint */
nas = intf->num_altsetting;
if (nas != 8) {
err("Incorrect number of alternate settings (%d) for this camera!", nas);
return -ENODEV;
}
/* Validate all alternate settings */
for (ix=0; ix < nas; ix++) {
const struct usb_host_interface *interface;
const struct usb_endpoint_descriptor *endpoint;
interface = &intf->altsetting[ix];
i = interface->desc.bAlternateSetting;
if (interface->desc.bNumEndpoints != 2) {
err("Interface %d. has %u. endpoints!",
interface->desc.bInterfaceNumber,
(unsigned)(interface->desc.bNumEndpoints));
return -ENODEV;
}
endpoint = &interface->endpoint[1].desc;
DEBUG(1, "found endpoint: addr: 0x%2.2x maxps = 0x%4.4x",
endpoint->bEndpointAddress, le16_to_cpu(endpoint->wMaxPacketSize));
if (video_ep == 0)
video_ep = endpoint->bEndpointAddress;
else if (video_ep != endpoint->bEndpointAddress) {
err("Alternate settings have different endpoint addresses!");
return -ENODEV;
}
if (!usb_endpoint_xfer_isoc(endpoint)) {
err("Interface %d. has non-ISO endpoint!",
interface->desc.bInterfaceNumber);
return -ENODEV;
}
if (usb_endpoint_dir_out(endpoint)) {
err("Interface %d. has ISO OUT endpoint!",
interface->desc.bInterfaceNumber);
return -ENODEV;
}
if (le16_to_cpu(endpoint->wMaxPacketSize) == 0) {
if (inactInterface < 0)
inactInterface = i;
else {
err("More than one inactive alt. setting!");
return -ENODEV;
}
} else {
if (i == spd_to_iface[speed]) {
/* This one is the requested one */
actInterface = i;
}
}
if (le16_to_cpu(endpoint->wMaxPacketSize) > maxPS)
maxPS = le16_to_cpu(endpoint->wMaxPacketSize);
}
if(actInterface == -1) {
err("Cant find required endpoint");
return -ENODEV;
}
DEBUG(1, "Selecting requested active setting=%d. maxPS=%d.", actInterface, maxPS);
uvd = usbvideo_AllocateDevice(cams);
if (uvd != NULL) {
struct konicawc *cam = (struct konicawc *)(uvd->user_data);
/* Here uvd is a fully allocated uvd object */
for(i = 0; i < USBVIDEO_NUMSBUF; i++) {
cam->sts_urb[i] = usb_alloc_urb(FRAMES_PER_DESC, GFP_KERNEL);
if(cam->sts_urb[i] == NULL) {
while(i--) {
usb_free_urb(cam->sts_urb[i]);
}
err("can't allocate urbs");
return -ENOMEM;
}
}
cam->speed = speed;
RESTRICT_TO_RANGE(size, SIZE_160X120, SIZE_320X240);
cam->width = camera_sizes[size].width;
cam->height = camera_sizes[size].height;
cam->size = size;
uvd->flags = 0;
uvd->debug = debug;
uvd->dev = dev;
uvd->iface = intf->altsetting->desc.bInterfaceNumber;
uvd->ifaceAltInactive = inactInterface;
uvd->ifaceAltActive = actInterface;
uvd->video_endp = video_ep;
uvd->iso_packet_len = maxPS;
uvd->paletteBits = 1L << VIDEO_PALETTE_YUV420P;
uvd->defaultPalette = VIDEO_PALETTE_YUV420P;
uvd->canvas = VIDEOSIZE(320, 240);
uvd->videosize = VIDEOSIZE(cam->width, cam->height);
/* Initialize konicawc specific data */
konicawc_configure_video(uvd);
i = usbvideo_RegisterVideoDevice(uvd);
uvd->max_frame_size = (320 * 240 * 3)/2;
if (i != 0) {
err("usbvideo_RegisterVideoDevice() failed.");
uvd = NULL;
}
konicawc_register_input(cam, dev);
}
if (uvd) {
usb_set_intfdata (intf, uvd);
return 0;
}
return -EIO;
}