mirror of
https://github.com/bluekitchen/btstack.git
synced 2025-01-07 19:01:06 +00:00
86 lines
2.1 KiB
Python
Executable File
86 lines
2.1 KiB
Python
Executable File
#!/usr/bin/env python3
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# BlueKitchen GmbH (c) 2019
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import sys
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usage = '''
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CSR/Qualcomm PSR conversion tool for use with BTstack
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Copyright 2019 BlueKitchen GmbH
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Usage:
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$ ./convert_prs.py file.prs
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'''
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msg_seqno = 0
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indent = ' '
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def write_verbatim(fout, text):
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fout.write(text + '\n')
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def write_set_varid_cmd(fout, varid, msg_payload):
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global msg_seqno
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# msg_payload must be at least 4 uint16
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while len(msg_payload) < 4:
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msg_payload.append(0)
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# setup msg
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msg_type = 0x0002
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msg_len = 5 + len(msg_payload)
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msg_seqno += 1
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msg_status = 0
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msg = [msg_type, msg_len, msg_seqno, varid, msg_status] + msg_payload
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# setup hci command
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hci_payload_descriptor = 0xc2
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hci_param_len = len(msg) * 2 + 1
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hci_cmd = [ 0x00, 0xfc, hci_param_len, hci_payload_descriptor]
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# convert list of uint16_t to sequence of uint8_t in little endian
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for value in msg:
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hci_cmd.append(value & 0xff)
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hci_cmd.append(value >> 8)
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fout.write(indent + ', '.join(["0x%02x" % val for val in hci_cmd]) + ',\n')
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def write_key(fout, key, value):
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# setup ps command
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payload_len = len(value)
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stores = 0x0008 # psram
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ps_cmd = [key, payload_len, stores] + value
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# write ps command
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write_set_varid_cmd(fout, 0x7003, ps_cmd)
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def write_warm_reset(fout):
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write_verbatim(fout, indent + "// WarmReset")
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write_set_varid_cmd(fout, 0x4002, [])
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# check args
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if len(sys.argv) != 2:
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print(usage)
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sys.exit(1)
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prs_file = sys.argv[1]
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fout = sys.stdout
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with open (prs_file, 'rt') as fin:
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for line_with_nl in fin:
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line = line_with_nl.strip()
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if line.startswith('&'):
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# pskey
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parts = line.split('=')
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key = int(parts[0].strip().replace('&','0x'), 16)
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value = [int('0x'+i, 16) for i in parts[1].strip().split(' ')]
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write_key(fout, key, value)
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elif line.startswith('#'):
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#ifdef, ..
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write_verbatim(fout, line)
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else:
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# comments
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write_verbatim(fout, indent + line)
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write_warm_reset(fout)
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