burn-db-eeprom

这是用python语言写的一个数字广播的信号处理工具包。利用它

#!/usr/bin/env python
#
# Copyright 2005,2007 Free Software Foundation, Inc.
# 
# This file is part of GNU Radio
# 
# GNU Radio 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, or (at your option)
# any later version.
# 
# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
# 

from usrpm.usrp_prims import *
from optparse import OptionParser
import sys
from usrpm.usrp_dbid import *

i2c_addr_map = { 'TX_A' : 0x54,    'RX_A' : 0x55,    'TX_B' : 0x56,    'RX_B' : 0x57 }

daughterboards = {
    # name            : ((tx-dbid, tx-oe),          (rx-dbid, rx-oe))
    'basictx'         : ((BASIC_TX, 0x0000),        None),
    'basicrx'         : (None,                      (BASIC_RX, 0x0000)),
    'dbsrx'           : (None,                      (DBS_RX, 0x0000)),
    'dbsrx2'          : (None,                      (DBS_RX_REV_2_1, 0x0000)),
    'tvrx'            : (None,                      (TV_RX, 0x0000)),
    'tvrx2'           : (None,                      (TV_RX_REV_2, 0x0000)),
    'tvrx3'           : (None,                      (TV_RX_REV_3, 0x0000)),
    'dtt754'          : (None,                      (DTT754, 0x0000)),
    'dtt768'          : (None,                      (DTT768, 0x0000)),
    'rfx400'          : ((FLEX_400_TX, 0x0000),     (FLEX_400_RX, 0x0000)),
    'rfx900'          : ((FLEX_900_TX, 0x0000),     (FLEX_900_RX, 0x0000)),
    'rfx1200'         : ((FLEX_1200_TX, 0x0000),    (FLEX_1200_RX, 0x0000)),
    'rfx1800'         : ((FLEX_1800_TX, 0x0000),    (FLEX_1800_RX, 0x0000)),
    'rfx2400'         : ((FLEX_2400_TX, 0x0000),    (FLEX_2400_RX, 0x0000)),
    'rfx400_tx'       : ((FLEX_400_TX, 0x0000),     None),
    'rfx900_tx'       : ((FLEX_900_TX, 0x0000),     None),
    'rfx1200_tx'      : ((FLEX_1200_TX, 0x0000),    None),
    'rfx1800_tx'      : ((FLEX_1800_TX, 0x0000),    None),
    'rfx2400_tx'      : ((FLEX_2400_TX, 0x0000),    None),
    'rfx400_rx'       : (None,                      (FLEX_400_RX, 0x0000)),
    'rfx900_rx'       : (None,                      (FLEX_900_RX, 0x0000)),
    'rfx1200_rx'      : (None,                      (FLEX_1200_RX, 0x0000)),
    'rfx1800_rx'      : (None,                      (FLEX_1800_RX, 0x0000)),
    'rfx2400_rx'      : (None,                      (FLEX_2400_RX, 0x0000)),
    'rfx400_mimo_a'   : ((FLEX_400_TX_MIMO_A, 0x0000),     (FLEX_400_RX_MIMO_A, 0x0000)),
    'rfx900_mimo_a'   : ((FLEX_900_TX_MIMO_A, 0x0000),     (FLEX_900_RX_MIMO_A, 0x0000)),
    'rfx1200_mimo_a'  : ((FLEX_1200_TX_MIMO_A, 0x0000),    (FLEX_1200_RX_MIMO_A, 0x0000)),
    'rfx1800_mimo_a'  : ((FLEX_1800_TX_MIMO_A, 0x0000),    (FLEX_1800_RX_MIMO_A, 0x0000)),
    'rfx2400_mimo_a'  : ((FLEX_2400_TX_MIMO_A, 0x0000),    (FLEX_2400_RX_MIMO_A, 0x0000)),
    'rfx400_mimo_b'   : ((FLEX_400_TX_MIMO_B, 0x0000),     (FLEX_400_RX_MIMO_B, 0x0000)),
    'rfx900_mimo_b'   : ((FLEX_900_TX_MIMO_B, 0x0000),     (FLEX_900_RX_MIMO_B, 0x0000)),
    'rfx1200_mimo_b'  : ((FLEX_1200_TX_MIMO_B, 0x0000),    (FLEX_1200_RX_MIMO_B, 0x0000)),
    'rfx1800_mimo_b'  : ((FLEX_1800_TX_MIMO_B, 0x0000),    (FLEX_1800_RX_MIMO_B, 0x0000)),
    'rfx2400_mimo_b'  : ((FLEX_2400_TX_MIMO_B, 0x0000),    (FLEX_2400_RX_MIMO_B, 0x0000)),
    'lftx'            : ((LF_TX, 0x0000),           None),
    'lfrx'            : (None,                      (LF_RX, 0x0000)),
    'wbx_lo'          : ((WBX_LO_TX, 0x0000),       (WBX_LO_RX, 0x0000)),
    'experimental_tx' : ((EXPERIMENTAL_TX, 0x0000), None),
    'experimental_rx' : (None,                      (EXPERIMENTAL_RX, 0x0000)),
    }

def open_cmd_interface(which_board = 0):
    if not usrp_load_standard_bits (which_board, 0):
        raise RuntimeError, "usrp_load_standard_bits"
    dev = usrp_find_device (which_board)
    if not dev:
        raise RuntimeError, "usrp_find_device"
    u = usrp_open_cmd_interface (dev)
    if not u:
        raise RuntimeError, "usrp_open_cmd_interface"
    return u

def write_dboard_eeprom(u, i2c_addr, dbid, oe):
    eeprom = 0x20 * [0]
    eeprom[0] = 0xDB                    # magic value
    eeprom[1] = dbid & 0xff
    eeprom[2] = (dbid >> 8) & 0xff
    eeprom[3] = oe & 0xff
    eeprom[4] = (oe >> 8) & 0xff
    eeprom[0x1f] = 0xff & (-reduce(lambda x, y: x+y, eeprom)) # checksum
    s = ''.join (map (chr, eeprom))
    ok = usrp_eeprom_write (u, i2c_addr, 0, s)
    return ok


def init_eeprom(u, slot_name, force, dbid, oe):
    i2c_addr = i2c_addr_map[slot_name]
    e = usrp_eeprom_read (u, i2c_addr, 0, 0x20)
    if not e:
        print "%s: no d'board, skipped" % (slot_name,)
        return True
    
    if not force and (sum (map (ord, e)) & 0xff) == 0 and ord (e[0]) == 0xDB:
        print "%s: already initialized, skipped" % (slot_name,)
        return True
        
    if not write_dboard_eeprom (u, i2c_addr, dbid, oe):
        print "%s: failed to write d'board EEPROM" % (slot_name,)
        return False

    print "%s: OK" % (slot_name,)
    return True


def init_daughterboard(u, side, type, force):
    ok = True
    dbinfo = daughterboards[type]
    if dbinfo[0] is not None:           # burn tx slot
        ok &= init_eeprom(u, 'TX_' + side, force, dbinfo[0][0], dbinfo[0][1])
    if dbinfo[1] is not None:           # burn rx slot
        ok &= init_eeprom(u, 'RX_' + side, force, dbinfo[1][0], dbinfo[1][1])
    return ok


def main():
    dbs = daughterboards.keys()
    dbs.sort()
    usage = """\
usage: %prog [options]
You must specify a type with -t or --type,
and at least one side using -A and/or -B."""

    parser = OptionParser(usage=usage)
    parser.add_option ("-t", "--type", type="choice", help="choose type from %r" % (dbs,),
                       choices=dbs, default=None)
    parser.add_option ("-A", "--burn-a", action="store_true", default=False,
                       help="burn eeprom(s) on side A")
    parser.add_option ("-B", "--burn-b", action="store_true", default=False,
                       help="burn eeprom(s) on side B")
    parser.add_option ("-f", "--force", action="store_true", default=False,
                       help="force init of already initialized eeproms")
    (options, args) = parser.parse_args ()

    which=[]
    if options.burn_a:
        which.append('A')
    if options.burn_b:
        which.append('B')

    if len(args) != 0 or len(which) == 0 or options.type is None:
        parser.print_help()
        sys.exit (1)

    u = open_cmd_interface (0)
    ok = True
    for w in which:
        ok &= init_daughterboard (u, w, options.type, options.force)

    if ok:
        sys.exit (0)
    else:
        sys.exit (1)

if __name__ == "__main__":
    main ()