Add magic init sequence required on BF1 devices to get them mining on windows.

driver-bitfury.c

@@ -28,7 +28,16 @@ static void bitfury_empty_buffer(struct cgpu_info *bitfury)
 
 static void bitfury_open(struct cgpu_info *bitfury)
 {
+	uint32_t buf[2];
+
 	bitfury_empty_buffer(bitfury);
+	/* Magic sequence to reset device only really needed for windows but
+	 * harmless on linux. */
+	buf[0] = 0x80250000;
+	buf[1] = 0x00000800;
+	usb_transfer(bitfury, 0, 9, 1, 0, C_BF1_RESET);
+	usb_transfer(bitfury, 0x21, 0x22, 0, 0, C_BF1_OPEN);
+	usb_transfer_data(bitfury, 0x21, 0x20, 0x0000, 0, buf, 7, C_BF1_INIT);
 }
 
 static void bitfury_close(struct cgpu_info *bitfury)

usbutils.h

@@ -328,7 +328,9 @@ struct cg_usb_info {
 	USB_ADD_COMMAND(C_ENABLE_UART, "EnableUART") \
 	USB_ADD_COMMAND(C_BB_SET_VOLTAGE, "SetCoreVoltage") \
 	USB_ADD_COMMAND(C_BB_GET_VOLTAGE, "GetCoreVoltage") \
+	USB_ADD_COMMAND(C_BF1_RESET, "BF1Reset") \
 	USB_ADD_COMMAND(C_BF1_OPEN, "BF1Open") \
+	USB_ADD_COMMAND(C_BF1_INIT, "BF1Init") \
 	USB_ADD_COMMAND(C_BF1_CLOSE, "BF1Close") \
 	USB_ADD_COMMAND(C_BF1_REQINFO, "BF1RequestInfo") \
 	USB_ADD_COMMAND(C_BF1_GETINFO, "BF1GetInfo") \