bcc6c64335
- Make DellEMC platform modules Python3 compliant. - Change return type of PSU Platform APIs in DellEMC Z9264, S5232 and Thermal Platform APIs in S5232 to 'float'. - Remove multiple copies of pcisysfs.py. - PEP8 style changes for utility scripts. - Build and install Python3 version of sonic_platform package. - Fix minor Platform API issues.
91 lines
2.1 KiB
Python
Executable File
91 lines
2.1 KiB
Python
Executable File
#!/usr/bin/python3
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# Script to read/write the io based registers
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import sys
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import os
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import getopt
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import struct
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io_resource = '/dev/port'
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def usage():
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''' This is the Usage Method '''
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print('Utility for IO read/write')
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print('\t\t io_rd_wr.py --get --offset <offset>')
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print('\t\t io_rd_wr.py --set --val <val> --offset <offset>')
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sys.exit(1)
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def io_reg_read(io_resource, offset):
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fd = os.open(io_resource, os.O_RDONLY)
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if(fd < 0):
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print('file open failed %s' % io_resource)
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return
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if(os.lseek(fd, offset, os.SEEK_SET) != offset):
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print('lseek failed on %s' % io_resource)
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return
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buf = os.read(fd, 1)
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reg_val1 = ord(buf)
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print('reg value %x' % reg_val1)
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os.close(fd)
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def io_reg_write(io_resource, offset, val):
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fd = os.open(io_resource, os.O_RDWR)
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if(fd < 0):
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print('file open failed %s' % io_resource)
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return
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if(os.lseek(fd, offset, os.SEEK_SET) != offset):
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print('lseek failed on %s' % io_resource)
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return
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ret = os.write(fd, struct.pack('B', val))
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if(ret != 1):
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print('write failed %d' % ret)
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return
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os.close(fd)
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def main(argv):
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''' The main function will read the user input from the
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command line argument and process the request '''
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opts = ''
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val = ''
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choice = ''
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offset = ''
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try:
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opts, args = getopt.getopt(argv, "hgs:",
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["val=", "offset=", "help", "get", "set"])
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except getopt.GetoptError:
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usage()
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for opt, arg in opts:
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if opt in ('-h', '--help'):
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choice = 'help'
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elif opt in ('-g', '--get'):
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choice = 'get'
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elif opt in ('-s', '--set'):
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choice = 'set'
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elif opt == '--offset':
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offset = int(arg, 16)
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elif opt == '--val':
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val = int(arg, 16)
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if choice == 'get' and offset != '':
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io_reg_read(io_resource, offset)
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elif choice == 'set' and offset != '' and val != '':
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io_reg_write(io_resource, offset, val)
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else:
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usage()
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# Calling the main method
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if __name__ == "__main__":
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main(sys.argv[1:])
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