kopia lustrzana https://gitlab.com/sane-project/backends
add GT-6801/6816 chip detection
Stphane Voltz
rodzic
fd9153e2b4
commit
f462ab59d1
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@ -3625,6 +3625,248 @@ check_gl646 (libusb_device_handle * handle,
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return "GL646";
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}
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/** @brief check for gt6801 chip
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*
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* @param dev libusb device
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* @param hdl libusb opened handle
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* @param config0 configuration 0 from get config _descriptor
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* @return a string with ASIC name, or NULL if not recognized
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*/
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static char *
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check_gt6801 (libusb_device_handle * handle,
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struct libusb_device_descriptor desc,
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struct libusb_config_descriptor *config0)
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{
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unsigned char req[64];
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int result;
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if (verbose > 2)
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printf (" checking for GT-6801 ...\n");
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/* Check device descriptor */
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if (desc.bDeviceClass != LIBUSB_CLASS_VENDOR_SPEC)
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{
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if (verbose > 2)
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printf (" this is not a GT-6801 (bDeviceClass = %d)\n",
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desc.bDeviceClass);
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return 0;
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}
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if (desc.bcdUSB != 0x110)
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{
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if (verbose > 2)
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printf (" this is not a GT-6801 (bcdUSB = 0x%x)\n", desc.bcdUSB);
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return 0;
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}
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if (desc.bDeviceSubClass != 0xff)
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{
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if (verbose > 2)
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printf (" this is not a GT-6801 (bDeviceSubClass = 0x%x)\n",
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desc.bDeviceSubClass);
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return 0;
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}
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if (desc.bDeviceProtocol != 0xff)
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{
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if (verbose > 2)
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printf (" this is not a GT-6801 (bDeviceProtocol = 0x%x)\n",
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desc.bDeviceProtocol);
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return 0;
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}
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/* Check endpoints */
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if (config0->interface[0].altsetting[0].bNumEndpoints != 1)
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{
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if (verbose > 2)
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printf (" this is not a GT-6801 (bNumEndpoints = %d)\n",
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config0->interface[0].altsetting[0].bNumEndpoints);
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return 0;
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}
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if ((config0->interface[0].altsetting[0].endpoint[0].bEndpointAddress != 0x81)
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|| (config0->interface[0].altsetting[0].endpoint[0].bmAttributes != 0x02)
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|| (config0->interface[0].altsetting[0].endpoint[0].wMaxPacketSize != 0x40)
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|| (config0->interface[0].altsetting[0].endpoint[0].bInterval != 0x00))
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{
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if (verbose > 2)
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printf
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(" this is not a GT-6801 (bEndpointAddress = 0x%x, bmAttributes = 0x%x, "
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"wMaxPacketSize = 0x%x, bInterval = 0x%x)\n",
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config0->interface[0].altsetting[0].endpoint[0].bEndpointAddress,
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config0->interface[0].altsetting[0].endpoint[0].bmAttributes,
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config0->interface[0].altsetting[0].endpoint[0].wMaxPacketSize,
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config0->interface[0].altsetting[0].endpoint[0].bInterval);
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return 0;
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}
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/* Now we send a control message */
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memset (req, 0, 64);
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req[0] = 0x2e; /* get identification information */
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req[1] = 0x01;
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result = libusb_control_transfer (handle, 0x40, 0x01, 0x2010, 0x3f40, req, 64, TIMEOUT);
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if (result <= 0)
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{
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if (verbose > 2)
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printf (" Couldn't send write control message (%s)\n",
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strerror (errno));
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return NULL;
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}
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result = libusb_control_transfer (handle, 0xc0, 0x01, 0x2011, 0x3f00, req, 64, TIMEOUT);
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if (result <= 0)
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{
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if (verbose > 2)
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printf (" Couldn't send read control message (%s)\n",
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strerror (errno));
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return NULL;
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}
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if (req[0] != 0 || (req[1] != 0x2e && req[1] != 0))
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{
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if (verbose > 2)
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printf (" Unexpected result from control message (%0x/%0x)\n",
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req[0], req[1]);
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return NULL;
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}
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return "GT-6801";
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}
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/** @brief check for gt6816 chip
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*
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* @param dev libusb device
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* @param hdl libusb opened handle
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* @param config0 configuration 0 from get config _descriptor
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* @return a string with ASIC name, or NULL if not recognized
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*/
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static char *
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check_gt6816 (libusb_device_handle * handle,
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struct libusb_device_descriptor desc,
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struct libusb_config_descriptor *config0)
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{
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unsigned char req[64];
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int result,i;
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if (verbose > 2)
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printf (" checking for GT-6816 ...\n");
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/* Check device descriptor */
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if ((desc.bDeviceClass != LIBUSB_CLASS_PER_INTERFACE)
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|| (config0->interface[0].altsetting[0].bInterfaceClass != LIBUSB_CLASS_VENDOR_SPEC))
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{
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if (verbose > 2)
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printf
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(" this is not a GT-6816 (bDeviceClass = %d, bInterfaceClass = %d)\n",
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desc.bDeviceClass,
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config0->interface[0].altsetting[0].bInterfaceClass);
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return 0;
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}
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if (desc.bcdUSB != 0x110)
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{
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if (verbose > 2)
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printf (" this is not a GT-6816 (bcdUSB = 0x%x)\n", desc.bcdUSB);
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return 0;
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}
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if (desc.bDeviceSubClass != 0x00)
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{
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if (verbose > 2)
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printf (" this is not a GT-6816 (bDeviceSubClass = 0x%x)\n",
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desc.bDeviceSubClass);
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return 0;
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}
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if (desc.bDeviceProtocol != 0x00)
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{
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if (verbose > 2)
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printf (" this is not a GT-6816 (bDeviceProtocol = 0x%x)\n",
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desc.bDeviceProtocol);
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return 0;
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}
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if (config0->bNumInterfaces != 0x01)
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{
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if (verbose > 2)
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printf (" this is not a GT-6816 (bNumInterfaces = 0x%x)\n",
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config0->bNumInterfaces);
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return 0;
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}
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/* Check endpoints */
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if (config0->interface[0].altsetting[0].bNumEndpoints != 2)
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{
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if (verbose > 2)
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printf (" this is not a GT-6816 (bNumEndpoints = %d)\n",
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config0->interface[0].altsetting[0].bNumEndpoints);
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return 0;
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}
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if ((config0->interface[0].altsetting[0].endpoint[0].bEndpointAddress != 0x81)
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|| (config0->interface[0].altsetting[0].endpoint[0].bmAttributes != 0x02)
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|| (config0->interface[0].altsetting[0].endpoint[0].wMaxPacketSize != 0x40)
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|| (config0->interface[0].altsetting[0].endpoint[0].bInterval != 0x00))
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{
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if (verbose > 2)
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printf
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(" this is not a GT-6816 (bEndpointAddress = 0x%x, bmAttributes = 0x%x, "
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"wMaxPacketSize = 0x%x, bInterval = 0x%x)\n",
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config0->interface[0].altsetting[0].endpoint[0].bEndpointAddress,
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config0->interface[0].altsetting[0].endpoint[0].bmAttributes,
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config0->interface[0].altsetting[0].endpoint[0].wMaxPacketSize,
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config0->interface[0].altsetting[0].endpoint[0].bInterval);
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return 0;
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}
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if ((config0->interface[0].altsetting[0].endpoint[1].bEndpointAddress != 0x02)
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|| (config0->interface[0].altsetting[0].endpoint[1].bmAttributes != 0x02)
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|| (config0->interface[0].altsetting[0].endpoint[1].wMaxPacketSize != 0x40)
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|| (config0->interface[0].altsetting[0].endpoint[1].bInterval != 0x00))
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{
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if (verbose > 2)
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printf
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(" this is not a GT-6816 (bEndpointAddress = 0x%x, bmAttributes = 0x%x, "
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"wMaxPacketSize = 0x%x, bInterval = 0x%x)\n",
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config0->interface[0].altsetting[0].endpoint[1].bEndpointAddress,
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config0->interface[0].altsetting[0].endpoint[1].bmAttributes,
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config0->interface[0].altsetting[0].endpoint[1].wMaxPacketSize,
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config0->interface[0].altsetting[0].endpoint[1].bInterval);
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return 0;
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}
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/* Now we send a control message */
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memset (req, 0, 64);
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for (i = 0; i < 8; i++)
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{
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req[8 * i + 0] = 0x73; /* check firmware */
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req[8 * i + 1] = 0x01;
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}
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result = libusb_control_transfer (handle, 0x40, 0x04, 0x2012, 0x3f40, req, 64, TIMEOUT);
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if (result <= 0)
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{
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if (verbose > 2)
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printf (" Couldn't send write control message (%s)\n",
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strerror (errno));
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return NULL;
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}
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result = libusb_control_transfer (handle, 0xc0, 0x01, 0x2013, 0x3f00, req, 64, TIMEOUT);
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if (result <= 0)
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{
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/* Before firmware upload, 64 bytes are returned. Some libusb
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implementations/operating systems can't seem to cope with short
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packets. */
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result = libusb_control_transfer (handle, 0xc0, 0x01, 0x2013, 0x3f00, req, 8, TIMEOUT);
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if (result <= 0)
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{
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if (verbose > 2)
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printf (" Couldn't send read control message (%s)\n",
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strerror (errno));
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return NULL;
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}
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}
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if (req[0] != 0)
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{
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if (verbose > 2)
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printf (" Unexpected result from control message (%0x/%0x)\n",
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req[0], req[1]);
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return NULL;
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}
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return "GT-6816";
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}
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/** @brief check for known genesys chip
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*
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* Try to check if the scanner use a known genesys ASIC.
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@ -3851,7 +4093,14 @@ check_usb_chip (int verbosity,
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return NULL;
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}
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/* now USB is opended and set up, actual chip detection */
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/* now USB is opened and set up, actual chip detection */
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if (!chip_name)
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chip_name = check_gt6801 (hdl, desc, config0);
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if (!chip_name)
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chip_name = check_gt6816 (hdl, desc, config0);
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if (!chip_name)
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chip_name = check_genesys (hdl, desc, config0);
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