Add new HID bootloader alternative host loader application, written in Python.

Bootloaders/HID/HostLoaderApp_Python/hid_bootloader_loader.py

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+"""
+             LUFA Library
+     Copyright (C) Dean Camera, 2013.
+
+  dean [at] fourwalledcubicle [dot] com
+           www.lufa-lib.org
+"""
+
+"""
+    Front-end programmer for the LUFA HID class bootloader.
+
+    Usage:
+        python hid_bootloader_loader.py <Device> <Input>.hex
+
+    Example:
+        python hid_bootloader_loader.py at90usb1287 Mouse.hex
+
+    Requires the pywinusb (https://pypi.python.org/pypi/pywinusb/) and
+    IntelHex (http://bialix.com/intelhex/) libraries.
+"""
+
+import sys
+import pywinusb.hid as hid
+from intelhex import IntelHex
+
+# Device information table
+device_info_map = dict()
+device_info_map['at90usb1287'] = {'page_size': 256, 'flash_kb': 128}
+device_info_map['at90usb1286'] = {'page_size': 256, 'flash_kb': 128}
+device_info_map['at90usb647']  = {'page_size': 256, 'flash_kb': 64}
+device_info_map['at90usb646']  = {'page_size': 256, 'flash_kb': 64}
+device_info_map['atmega32u4']  = {'page_size': 128, 'flash_kb': 32}
+device_info_map['atmega32u2']  = {'page_size': 128, 'flash_kb': 32}
+device_info_map['atmega16u4']  = {'page_size': 128, 'flash_kb': 16}
+device_info_map['atmega16u2']  = {'page_size': 128, 'flash_kb': 16}
+device_info_map['at90usb162']  = {'page_size': 128, 'flash_kb': 16}
+device_info_map['atmega8u2']   = {'page_size': 128, 'flash_kb': 8}
+device_info_map['at90usb82']   = {'page_size': 128, 'flash_kb': 8}
+
+
+def get_hid_device_handle():
+    hid_device_filter = hid.HidDeviceFilter(vendor_id=0x03EB,
+                                            product_id=0x2067)
+
+    valid_hid_devices = hid_device_filter.get_devices()
+
+    if len(valid_hid_devices) is 0:
+        return None
+    else:
+        return valid_hid_devices[0]
+
+
+def send_page_data(hid_device, address, data):
+    output_report_data = [0]
+    output_report_data.extend([address & 0xFF, address >> 8])
+    output_report_data.extend(data)
+
+    hid_device.send_output_report(output_report_data)
+
+
+def main(hex_filename, device_info):
+    hid_device = get_hid_device_handle()
+
+    if hid_device is None:
+        print("No valid HID device found.")
+        sys.exit(1)
+
+    try:
+        hid_device.open()
+
+        print("Connected to bootloader.")
+
+        hex_data = IntelHex(hex_filename)
+
+        for addr in range(0, hex_data.maxaddr(), device_info['page_size']):
+            page_data = [hex_data[i] for i in range(addr, addr+device_info['page_size'])]
+
+            print("Writing address 0x%04X-0x%04X" % (addr, addr+device_info['page_size']))
+
+            if device_info['flash_kb'] < 64:
+                send_page_data(hid_device, addr, page_data)
+            else:
+                send_page_data(hid_device, addr >> 8, page_data)
+
+        print("Programming complete, starting application.")
+        send_page_data(hid_device, 0xFFFF, [0] * device_info['page_size'])
+
+    finally:
+        hid_device.close()
+
+
+if __name__ == '__main__':
+    hex_filename = sys.argv[2]
+
+    try:
+        device_info = device_info_map[sys.argv[1]]
+    except:
+        print("Unknown device name specified.")
+        sys.exit(1)
+
+    main(hex_filename, device_info)