diff options
Diffstat (limited to 'firmware/usrp3/n230/n230_burner.py')
| -rwxr-xr-x | firmware/usrp3/n230/n230_burner.py | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/firmware/usrp3/n230/n230_burner.py b/firmware/usrp3/n230/n230_burner.py new file mode 100755 index 000000000..7b9920de7 --- /dev/null +++ b/firmware/usrp3/n230/n230_burner.py @@ -0,0 +1,359 @@ +#!/usr/bin/env python +# +# Copyright 2014 Ettus Research LLC +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +import optparse +import math +import socket +import struct +import os.path +import sys +from array import array + +######################################################################## +# constants +######################################################################## +N230_FLASH_COMM_UDP_PORT = 49154 +N230_FLASH_COMM_PAYLOAD_SIZE = 128 +N230_FLASH_COMM_SECTOR_SIZE = 65536 + +N230_FLASH_COMM_FLAGS_ACK = 0x00000001 +N230_FLASH_COMM_FLAGS_CMD_MASK = 0x00000FF0 +N230_FLASH_COMM_FLAGS_ERROR_MASK = 0xFF000000 + +N230_FLASH_COMM_CMD_READ_NV_DATA = 0x00000010 +N230_FLASH_COMM_CMD_WRITE_NV_DATA = 0x00000020 +N230_FLASH_COMM_CMD_READ_FPGA = 0x00000030 +N230_FLASH_COMM_CMD_WRITE_FPGA = 0x00000040 +N230_FLASH_COMM_CMD_ERASE_FPGA = 0x00000050 + +N230_FLASH_COMM_ERR_PKT_ERROR = 0x80000000 +N230_FLASH_COMM_ERR_CMD_ERROR = 0x40000000 +N230_FLASH_COMM_ERR_SIZE_ERROR = 0x20000000 + +N230_FLASH_COMM_SAFE_IMG_BASE = 0x000000 +N230_FLASH_COMM_PROD_IMG_BASE = 0x400000 +N230_FLASH_COMM_FPGA_IMG_MAX_SIZE = 0x400000 + +UDP_MAX_XFER_BYTES = 256 +UDP_TIMEOUT = 3 + +_seq = -1 +def next_seq(): + global _seq + _seq = _seq+1 + return _seq + +def seq(): + return _seq + +######################################################################## +# helper functions +######################################################################## + +short = struct.Struct('>H') +ulong = struct.Struct('>I') + +def unpack_flash_transaction(buf): + (flags, seqno, offset, size) = struct.unpack_from('!LLLL', buf) + check_error(flags) + if (seqno != seq()): + raise Exception("The flash transaction operation returned an incorrect sequence number") + data = bytes() + for i in xrange(16, len(buf), 1): + data += buf[i] + return (flags, offset, size, data) + +def pack_flash_transaction(flags, offset, size, data): + buf = bytes() + buf = struct.pack('!LLLL', flags, next_seq(), offset, size) + for i in range(N230_FLASH_COMM_PAYLOAD_SIZE): + if (i < size): + buf += struct.pack('!B', data[i]) + else: + buf += struct.pack('!B', 0) + return buf + +def check_error(flags): + if flags & N230_FLASH_COMM_ERR_PKT_ERROR == N230_FLASH_COMM_ERR_PKT_ERROR: + raise Exception("The flash transaction operation returned a packet error") + if flags & N230_FLASH_COMM_ERR_CMD_ERROR == N230_FLASH_COMM_ERR_CMD_ERROR: + raise Exception("The flash transaction operation returned a command error") + if flags & N230_FLASH_COMM_ERR_SIZE_ERROR == N230_FLASH_COMM_ERR_SIZE_ERROR: + raise Exception("The flash transaction operation returned a size error") + +def chunkify(stuff, n): + return [stuff[i:i+n] for i in range(0, len(stuff), n)] + +def draw_progress_bar(percent, bar_len = 32): + sys.stdout.write("\r") + progress = "" + for i in range(bar_len): + if i < int((bar_len * percent) / 100): + progress += "=" + else: + progress += "-" + sys.stdout.write("[%s] %d%%" % (progress, percent)) + sys.stdout.flush() + +######################################################################## +# Burner class, holds a socket and send/recv routines +######################################################################## +class ctrl_socket(object): + def __init__(self, addr): + self._safe_image = False + self._sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) + self._sock.settimeout(UDP_TIMEOUT) + self._sock.connect((addr, N230_FLASH_COMM_UDP_PORT)) + self.set_callbacks(lambda *a: None, lambda *a: None) + + def set_safe_image(self, noprompt): + confirm_msg = ('----------------------------------------------------------------------\n' + 'WARNING!!! You are about to access the safe-image stored in the flash \n' + '----------------------------------------------------------------------\n' + 'Writing a non-functional image will brick the device.\n' + 'Are you sure you want to proceed?') + if not noprompt: + if raw_input("%s (y/N) " % confirm_msg).lower() == 'y': + self._safe_image = True + else: + print 'Aborted by user' + sys.exit(1) + else: + print '[WARNING] Operating on safe image without a prompt as requested' + self._safe_image = True + + def set_callbacks(self, progress_cb, status_cb): + self._progress_cb = progress_cb + self._status_cb = status_cb + + def send_and_recv(self, pkt): + self._sock.send(pkt) + return self._sock.recv(UDP_MAX_XFER_BYTES) + + def compute_offset(self, offset): + base = N230_FLASH_COMM_SAFE_IMG_BASE if (self._safe_image) else N230_FLASH_COMM_PROD_IMG_BASE + return base + offset + + def burn_fpga_to_flash(self, bitfile_path, noprompt): + print '[BURN] Reading ' + bitfile_path + '...' + with open(bitfile_path, 'rb') as bitfile: + header = file_bytes = bitfile.read() + if (self._safe_image != self.parse_bitfile_header(file_bytes)['safe-image']): + confirm_msg = ('----------------------------------------------------------------------\n' + 'WARNING!!! You are about to burn a safe image into a production slot \n' + ' or a production image into a safe slot. \n' + '----------------------------------------------------------------------\n' + 'This is dangerous and can cause the device to boot incorrectly.\n' + 'Are you sure you want to proceed?') + if not noprompt: + if raw_input("%s (y/N) " % confirm_msg).lower() != 'y': + print '[BURN] Aborted by user' + return + else: + print '[WARNING] Burning image to the wrong slot without a prompt as requested' + + print '[BURN] Writing to flash...' + pkt_chunks = chunkify(file_bytes, N230_FLASH_COMM_PAYLOAD_SIZE) + offset = 0 + for pkt_data in pkt_chunks: + pkt_data = array("B", pkt_data) + size = N230_FLASH_COMM_PAYLOAD_SIZE if (len(pkt_data) >= N230_FLASH_COMM_PAYLOAD_SIZE) else len(pkt_data) + #Erase sector + if (offset % N230_FLASH_COMM_SECTOR_SIZE == 0): + flags = N230_FLASH_COMM_FLAGS_ACK|N230_FLASH_COMM_CMD_ERASE_FPGA + out_pkt = pack_flash_transaction(flags, self.compute_offset(offset), size, pkt_data) + (flags, real_offset, size, data) = unpack_flash_transaction(self.send_and_recv(out_pkt)) + #Write data + flags = N230_FLASH_COMM_FLAGS_ACK|N230_FLASH_COMM_CMD_WRITE_FPGA + out_pkt = pack_flash_transaction(flags, self.compute_offset(offset), size, pkt_data) + (flags, real_offset, size, data) = unpack_flash_transaction(self.send_and_recv(out_pkt)) + #Increment + offset += N230_FLASH_COMM_PAYLOAD_SIZE + draw_progress_bar((((offset/N230_FLASH_COMM_PAYLOAD_SIZE)+1)*100)/len(pkt_chunks)) + print('\n[BURN] DONE') + + def parse_bitfile_header(self, header_bytes): + xil_header = dict() + n230_header = dict() + n230_header['valid'] = False + ptr = 0 + #Field 1 + if short.unpack(header_bytes[ptr:ptr+2])[0] == 9 and ulong.unpack(header_bytes[ptr+2:ptr+6])[0] == 0x0ff00ff0: + #Headers + ptr += short.unpack(header_bytes[ptr:ptr+2])[0] + 2 + ptr += short.unpack(header_bytes[ptr:ptr+2])[0] + 1 + #Fields a-d + for keynum in range(0, 4): + key = header_bytes[ptr] + ptr += 1 + val_len = short.unpack(header_bytes[ptr:ptr+2])[0] + ptr += 2 + val = header_bytes[ptr:ptr+val_len] + ptr += val_len + xil_header[key] = val + #Field e + ptr += 1 + length = ulong.unpack(header_bytes[ptr:ptr+4])[0] + xil_header['bl'] = length #Bitstream length + ptr += 4 + xil_header['hl'] = ptr #Header lengt + + #Map Xilinx header field to N230 specific ones + if xil_header and xil_header['a'].split(';')[0] == 'n230': + n230_header['valid'] = True + n230_header['user-id'] = int(xil_header['a'].split(';')[1].split('=')[1], 16) + n230_header['safe-image'] = (n230_header['user-id'] >> 16 == 0x5AFE) + n230_header['product'] = xil_header['b'] + n230_header['timestamp'] = xil_header['c'] + ' ' + xil_header['d'] + n230_header['filesize'] = xil_header['hl'] + xil_header['bl'] + return n230_header + + def read_bitfile_header_from_flash(self): + max_header_size = 1024 #Should be enough + header_bytes = bytes() + for offset in range(0, max_header_size, N230_FLASH_COMM_PAYLOAD_SIZE): + #Read data + flags = N230_FLASH_COMM_FLAGS_ACK|N230_FLASH_COMM_CMD_READ_FPGA + out_pkt = pack_flash_transaction(flags, self.compute_offset(offset), N230_FLASH_COMM_PAYLOAD_SIZE, [0]*N230_FLASH_COMM_PAYLOAD_SIZE) + (flags, real_offset, size, data) = unpack_flash_transaction(self.send_and_recv(out_pkt)) + header_bytes += data + return self.parse_bitfile_header(header_bytes) + + def extract_fpga_from_flash(self, bitfile_path): + header = self.read_bitfile_header_from_flash(); + if not header['valid']: + raise Exception("Could not detect a vaild Xilinx .bit burned into the flash") + max_offset = header['filesize'] + print '[EXTRACT] Writing ' + bitfile_path + '...' + with open(bitfile_path, 'wb') as bitfile: + for i in range(0, int(math.ceil(float(max_offset)/N230_FLASH_COMM_PAYLOAD_SIZE))): + offset = i * N230_FLASH_COMM_PAYLOAD_SIZE + size = N230_FLASH_COMM_PAYLOAD_SIZE if (max_offset - offset >= N230_FLASH_COMM_PAYLOAD_SIZE) else (max_offset - offset) + #Read data + flags = N230_FLASH_COMM_FLAGS_ACK|N230_FLASH_COMM_CMD_READ_FPGA + out_pkt = pack_flash_transaction(flags, self.compute_offset(offset), size, [0]*N230_FLASH_COMM_PAYLOAD_SIZE) + (flags, real_offset, size, data) = unpack_flash_transaction(self.send_and_recv(out_pkt)) + bitfile.write(data[:size]) + draw_progress_bar(((offset*100)/max_offset) + 1) + print('\n[EXTRACT] DONE') + + def erase_fpga_from_flash(self): + print '[ERASE] Erasing image from flash...' + for offset in range(0, N230_FLASH_COMM_FPGA_IMG_MAX_SIZE, N230_FLASH_COMM_SECTOR_SIZE): + flags = N230_FLASH_COMM_FLAGS_ACK|N230_FLASH_COMM_CMD_ERASE_FPGA + out_pkt = pack_flash_transaction(flags, self.compute_offset(offset), N230_FLASH_COMM_PAYLOAD_SIZE, [0]*N230_FLASH_COMM_PAYLOAD_SIZE) + (flags, real_offset, size, data) = unpack_flash_transaction(self.send_and_recv(out_pkt)) + draw_progress_bar(((offset+N230_FLASH_COMM_SECTOR_SIZE)*100)/N230_FLASH_COMM_FPGA_IMG_MAX_SIZE) + print('\n[ERASE] DONE') + + def wipe_user_data(self, noprompt): + confirm_msg = ('-------------------------------------------------------------------\n' + 'WARNING!!! You are about to erase all the user data from the flash \n' + '-------------------------------------------------------------------\n' + 'This will cause the device to lose the following:\n' + ' * IP Address (Will default to 192.168.10.2)\n' + ' * Subnet Mask (Will default to 255.255.255.2)\n' + ' * MAC Address\n' + ' * Serial Number\n' + ' * Hardware Revision\n' + ' * ...and other identification info\n' + 'Are you sure you want to proceed?') + if not noprompt: + if raw_input("%s (y/N) " % confirm_msg).lower() == 'y': + wipe_ok = True + else: + print '[WIPE] Aborted by user' + wipe_ok = False + else: + print '[WARNING] Wiping user data without prompt a as requested' + wipe_ok = True + + if wipe_ok: + print '[WIPE] Erasing all user data from flash...' + flags = N230_FLASH_COMM_FLAGS_ACK|N230_FLASH_COMM_CMD_WRITE_NV_DATA + out_pkt = pack_flash_transaction(flags, 0, N230_FLASH_COMM_PAYLOAD_SIZE, [0xFF]*N230_FLASH_COMM_PAYLOAD_SIZE) + (flags, real_offset, size, data) = unpack_flash_transaction(self.send_and_recv(out_pkt)) + print('[WIPE] DONE. Please power-cycle the device.') + + def print_status(self): + header = self.read_bitfile_header_from_flash(); + if header['valid']: + print('[STATUS] Detected a valid .bit header in the flash (Product = %s, Datestamp = %s%s)' % \ + (header['product'], header['timestamp'], ', Safe-Image' if header['safe-image'] else '')) + else: + print('[STATUS] No .bit header detected. Either the flash is uninitialized or the image is corrupt.') + + +######################################################################## +# command line options +######################################################################## +def get_options(): + parser = optparse.OptionParser() + parser.add_option("--addr", type="string", help="N230 device address", default='') + parser.add_option("--status", action="store_true", help="Print out the status of the burned image", default=False) + parser.add_option("--erase", action="store_true", help="Erase FPGA bitstream from flash", default=False) + parser.add_option("--burn", type="string", help="Path to FPGA bitstream (.bit) to burn to flash", default=None) + parser.add_option("--extract", type="string", help="Destination bitfile to dump contents of the extracted image", default=None) + parser.add_option("--safe_image", action="store_true", help="Operate on the safe image. WARNING: This could be dangerous", default=False) + parser.add_option("--wipe_user_data", action="store_true", help="Erase all user data like IP, MAC, S/N, etc from flash", default=False) + parser.add_option("--no_prompt", action="store_true", help="Suppress all warning prompts", default=False) + (options, args) = parser.parse_args() + return options + +######################################################################## +# main +######################################################################## +if __name__=='__main__': + options = get_options() + + if not options.addr: raise Exception('No address specified') + + ctrl_sock = ctrl_socket(addr=options.addr) + + # Initialize safe image selector first + if options.safe_image: + ctrl_sock.set_safe_image(options.no_prompt) + + if options.status: + ctrl_sock.print_status() + + # Order of operations: + # 1. Extract (if specified) + # 2. Erase (if specified) + # 3. Burn (if specified) + + if options.extract is not None: + file_path = options.extract + ctrl_sock.print_status() + ctrl_sock.extract_fpga_from_flash(file_path) + + if options.erase: + ctrl_sock.erase_fpga_from_flash() + ctrl_sock.print_status() + + if options.burn is not None: + file_path = options.burn + extension = os.path.splitext(file_path)[1] + if (extension.lower() == '.bit'): + ctrl_sock.burn_fpga_to_flash(file_path, options.no_prompt) + ctrl_sock.print_status() + else: + raise Exception("Unsupported FPGA bitfile format. You must use a .bit file.") + + if options.wipe_user_data: + ctrl_sock.wipe_user_data(options.no_prompt) |