467 lines
16 KiB
Python
Executable File
467 lines
16 KiB
Python
Executable File
#!/usr/bin/env python
|
|
"""Creates the pin file for the STM32F4xx."""
|
|
|
|
from __future__ import print_function
|
|
|
|
import argparse
|
|
import sys
|
|
import csv
|
|
|
|
SUPPORTED_FN = {
|
|
'TIM' : ['CH1', 'CH2', 'CH3', 'CH4',
|
|
'CH1N', 'CH2N', 'CH3N', 'CH1_ETR', 'ETR', 'BKIN'],
|
|
'I2C' : ['SDA', 'SCL'],
|
|
'I2S' : ['CK', 'MCK', 'SD', 'WS', 'EXTSD'],
|
|
'USART' : ['RX', 'TX', 'CTS', 'RTS', 'CK'],
|
|
'UART' : ['RX', 'TX', 'CTS', 'RTS'],
|
|
'SPI' : ['NSS', 'SCK', 'MISO', 'MOSI']
|
|
}
|
|
|
|
CONDITIONAL_VAR = {
|
|
'I2C' : 'MICROPY_HW_I2C{num}_SCL',
|
|
'I2S' : 'MICROPY_HW_ENABLE_I2S{num}',
|
|
'SPI' : 'MICROPY_HW_SPI{num}_SCK',
|
|
'UART' : 'MICROPY_HW_UART{num}_TX',
|
|
'USART' : 'MICROPY_HW_UART{num}_TX',
|
|
}
|
|
|
|
def parse_port_pin(name_str):
|
|
"""Parses a string and returns a (port-num, pin-num) tuple."""
|
|
if len(name_str) < 3:
|
|
raise ValueError("Expecting pin name to be at least 3 charcters.")
|
|
if name_str[0] != 'P':
|
|
raise ValueError("Expecting pin name to start with P")
|
|
if name_str[1] < 'A' or name_str[1] > 'K':
|
|
raise ValueError("Expecting pin port to be between A and K")
|
|
port = ord(name_str[1]) - ord('A')
|
|
pin_str = name_str[2:]
|
|
if not pin_str.isdigit():
|
|
raise ValueError("Expecting numeric pin number.")
|
|
return (port, int(pin_str))
|
|
|
|
def split_name_num(name_num):
|
|
num = None
|
|
for num_idx in range(len(name_num) - 1, -1, -1):
|
|
if not name_num[num_idx].isdigit():
|
|
name = name_num[0:num_idx + 1]
|
|
num_str = name_num[num_idx + 1:]
|
|
if len(num_str) > 0:
|
|
num = int(num_str)
|
|
break
|
|
return name, num
|
|
|
|
def conditional_var(name_num):
|
|
# Try the specific instance first. For example, if name_num is UART4_RX
|
|
# then try UART4 first, and then try UART second.
|
|
name, num = split_name_num(name_num)
|
|
var = []
|
|
if name in CONDITIONAL_VAR:
|
|
var.append(CONDITIONAL_VAR[name].format(num=num))
|
|
if name_num in CONDITIONAL_VAR:
|
|
var.append(CONDITIONAL_VAR[name_num])
|
|
return var
|
|
|
|
def print_conditional_if(cond_var, file=None):
|
|
if cond_var:
|
|
cond_str = []
|
|
for var in cond_var:
|
|
if var.find('ENABLE') >= 0:
|
|
cond_str.append('(defined({0}) && {0})'.format(var))
|
|
else:
|
|
cond_str.append('defined({0})'.format(var))
|
|
print('#if ' + ' || '.join(cond_str), file=file)
|
|
|
|
def print_conditional_endif(cond_var, file=None):
|
|
if cond_var:
|
|
print('#endif', file=file)
|
|
|
|
|
|
class AlternateFunction(object):
|
|
"""Holds the information associated with a pins alternate function."""
|
|
|
|
def __init__(self, idx, af_str):
|
|
self.idx = idx
|
|
# Special case. We change I2S2ext_SD into I2S2_EXTSD so that it parses
|
|
# the same way the other peripherals do.
|
|
af_str = af_str.replace('ext_', '_EXT')
|
|
|
|
self.af_str = af_str
|
|
|
|
self.func = ''
|
|
self.fn_num = None
|
|
self.pin_type = ''
|
|
self.supported = False
|
|
|
|
af_words = af_str.split('_', 1)
|
|
self.func, self.fn_num = split_name_num(af_words[0])
|
|
if len(af_words) > 1:
|
|
self.pin_type = af_words[1]
|
|
if self.func in SUPPORTED_FN:
|
|
pin_types = SUPPORTED_FN[self.func]
|
|
if self.pin_type in pin_types:
|
|
self.supported = True
|
|
|
|
def is_supported(self):
|
|
return self.supported
|
|
|
|
def ptr(self):
|
|
"""Returns the numbered function (i.e. USART6) for this AF."""
|
|
if self.fn_num is None:
|
|
return self.func
|
|
return '{:s}{:d}'.format(self.func, self.fn_num)
|
|
|
|
def mux_name(self):
|
|
return 'AF{:d}_{:s}'.format(self.idx, self.ptr())
|
|
|
|
def print(self):
|
|
"""Prints the C representation of this AF."""
|
|
cond_var = None
|
|
if self.supported:
|
|
cond_var = conditional_var('{}{}'.format(self.func, self.fn_num))
|
|
print_conditional_if(cond_var)
|
|
print(' AF', end='')
|
|
else:
|
|
print(' //', end='')
|
|
fn_num = self.fn_num
|
|
if fn_num is None:
|
|
fn_num = 0
|
|
print('({:2d}, {:8s}, {:2d}, {:10s}, {:8s}), // {:s}'.format(self.idx,
|
|
self.func, fn_num, self.pin_type, self.ptr(), self.af_str))
|
|
print_conditional_endif(cond_var)
|
|
|
|
def qstr_list(self):
|
|
return [self.mux_name()]
|
|
|
|
|
|
class Pin(object):
|
|
"""Holds the information associated with a pin."""
|
|
|
|
def __init__(self, port, pin):
|
|
self.port = port
|
|
self.pin = pin
|
|
self.alt_fn = []
|
|
self.alt_fn_count = 0
|
|
self.adc_num = 0
|
|
self.adc_channel = 0
|
|
self.board_pin = False
|
|
|
|
def port_letter(self):
|
|
return chr(self.port + ord('A'))
|
|
|
|
def cpu_pin_name(self):
|
|
return '{:s}{:d}'.format(self.port_letter(), self.pin)
|
|
|
|
def is_board_pin(self):
|
|
return self.board_pin
|
|
|
|
def set_is_board_pin(self):
|
|
self.board_pin = True
|
|
|
|
def parse_adc(self, adc_str):
|
|
if (adc_str[:3] != 'ADC'):
|
|
return
|
|
(adc,channel) = adc_str.split('_')
|
|
for idx in range(3, len(adc)):
|
|
adc_num = int(adc[idx]) # 1, 2, or 3
|
|
self.adc_num |= (1 << (adc_num - 1))
|
|
self.adc_channel = int(channel[2:])
|
|
|
|
def parse_af(self, af_idx, af_strs_in):
|
|
if len(af_strs_in) == 0:
|
|
return
|
|
# If there is a slash, then the slash separates 2 aliases for the
|
|
# same alternate function.
|
|
af_strs = af_strs_in.split('/')
|
|
for af_str in af_strs:
|
|
alt_fn = AlternateFunction(af_idx, af_str)
|
|
self.alt_fn.append(alt_fn)
|
|
if alt_fn.is_supported():
|
|
self.alt_fn_count += 1
|
|
|
|
def alt_fn_name(self, null_if_0=False):
|
|
if null_if_0 and self.alt_fn_count == 0:
|
|
return 'NULL'
|
|
return 'pin_{:s}_af'.format(self.cpu_pin_name())
|
|
|
|
def adc_num_str(self):
|
|
str = ''
|
|
for adc_num in range(1,4):
|
|
if self.adc_num & (1 << (adc_num - 1)):
|
|
if len(str) > 0:
|
|
str += ' | '
|
|
str += 'PIN_ADC'
|
|
str += chr(ord('0') + adc_num)
|
|
if len(str) == 0:
|
|
str = '0'
|
|
return str
|
|
|
|
def print(self):
|
|
if self.alt_fn_count == 0:
|
|
print("// ", end='')
|
|
print('const pin_af_obj_t {:s}[] = {{'.format(self.alt_fn_name()))
|
|
for alt_fn in self.alt_fn:
|
|
alt_fn.print()
|
|
if self.alt_fn_count == 0:
|
|
print("// ", end='')
|
|
print('};')
|
|
print('')
|
|
print('const pin_obj_t pin_{:s} = PIN({:s}, {:d}, {:s}, {:s}, {:d});'.format(
|
|
self.cpu_pin_name(), self.port_letter(), self.pin,
|
|
self.alt_fn_name(null_if_0=True),
|
|
self.adc_num_str(), self.adc_channel))
|
|
print('')
|
|
|
|
def print_header(self, hdr_file):
|
|
hdr_file.write('extern const pin_obj_t pin_{:s};\n'.
|
|
format(self.cpu_pin_name()))
|
|
if self.alt_fn_count > 0:
|
|
hdr_file.write('extern const pin_af_obj_t pin_{:s}_af[];\n'.
|
|
format(self.cpu_pin_name()))
|
|
|
|
def qstr_list(self):
|
|
result = []
|
|
for alt_fn in self.alt_fn:
|
|
if alt_fn.is_supported():
|
|
result += alt_fn.qstr_list()
|
|
return result
|
|
|
|
|
|
class NamedPin(object):
|
|
|
|
def __init__(self, name, pin):
|
|
self._name = name
|
|
self._pin = pin
|
|
|
|
def pin(self):
|
|
return self._pin
|
|
|
|
def name(self):
|
|
return self._name
|
|
|
|
|
|
class Pins(object):
|
|
|
|
def __init__(self):
|
|
self.cpu_pins = [] # list of NamedPin objects
|
|
self.board_pins = [] # list of NamedPin objects
|
|
|
|
def find_pin(self, port_num, pin_num):
|
|
for named_pin in self.cpu_pins:
|
|
pin = named_pin.pin()
|
|
if pin.port == port_num and pin.pin == pin_num:
|
|
return pin
|
|
|
|
def parse_af_file(self, filename, pinname_col, af_col):
|
|
with open(filename, 'r') as csvfile:
|
|
rows = csv.reader(csvfile)
|
|
for row in rows:
|
|
try:
|
|
(port_num, pin_num) = parse_port_pin(row[pinname_col])
|
|
except:
|
|
continue
|
|
pin = Pin(port_num, pin_num)
|
|
for af_idx in range(af_col, len(row)):
|
|
if af_idx < af_col + 16:
|
|
pin.parse_af(af_idx - af_col, row[af_idx])
|
|
elif af_idx == af_col + 16:
|
|
pin.parse_adc(row[af_idx])
|
|
self.cpu_pins.append(NamedPin(pin.cpu_pin_name(), pin))
|
|
|
|
def parse_board_file(self, filename):
|
|
with open(filename, 'r') as csvfile:
|
|
rows = csv.reader(csvfile)
|
|
for row in rows:
|
|
try:
|
|
(port_num, pin_num) = parse_port_pin(row[1])
|
|
except:
|
|
continue
|
|
pin = self.find_pin(port_num, pin_num)
|
|
if pin:
|
|
pin.set_is_board_pin()
|
|
self.board_pins.append(NamedPin(row[0], pin))
|
|
|
|
def print_named(self, label, named_pins):
|
|
print('STATIC const mp_map_elem_t pin_{:s}_pins_locals_dict_table[] = {{'.format(label))
|
|
for named_pin in named_pins:
|
|
pin = named_pin.pin()
|
|
if pin.is_board_pin():
|
|
print(' {{ MP_OBJ_NEW_QSTR(MP_QSTR_{:s}), (mp_obj_t)&pin_{:s} }},'.format(named_pin.name(), pin.cpu_pin_name()))
|
|
print('};')
|
|
print('MP_DEFINE_CONST_DICT(pin_{:s}_pins_locals_dict, pin_{:s}_pins_locals_dict_table);'.format(label, label));
|
|
|
|
def print(self):
|
|
for named_pin in self.cpu_pins:
|
|
pin = named_pin.pin()
|
|
if pin.is_board_pin():
|
|
pin.print()
|
|
self.print_named('cpu', self.cpu_pins)
|
|
print('')
|
|
self.print_named('board', self.board_pins)
|
|
|
|
def print_adc(self, adc_num):
|
|
print('');
|
|
print('const pin_obj_t * const pin_adc{:d}[] = {{'.format(adc_num))
|
|
for channel in range(17):
|
|
if channel == 16:
|
|
print('#if defined(MCU_SERIES_L4)')
|
|
adc_found = False
|
|
for named_pin in self.cpu_pins:
|
|
pin = named_pin.pin()
|
|
if (pin.is_board_pin() and
|
|
(pin.adc_num & (1 << (adc_num - 1))) and (pin.adc_channel == channel)):
|
|
print(' &pin_{:s}, // {:d}'.format(pin.cpu_pin_name(), channel))
|
|
adc_found = True
|
|
break
|
|
if not adc_found:
|
|
print(' NULL, // {:d}'.format(channel))
|
|
if channel == 16:
|
|
print('#endif')
|
|
print('};')
|
|
|
|
|
|
def print_header(self, hdr_filename):
|
|
with open(hdr_filename, 'wt') as hdr_file:
|
|
for named_pin in self.cpu_pins:
|
|
pin = named_pin.pin()
|
|
if pin.is_board_pin():
|
|
pin.print_header(hdr_file)
|
|
hdr_file.write('extern const pin_obj_t * const pin_adc1[];\n')
|
|
hdr_file.write('extern const pin_obj_t * const pin_adc2[];\n')
|
|
hdr_file.write('extern const pin_obj_t * const pin_adc3[];\n')
|
|
# provide #define's mapping board to cpu name
|
|
for named_pin in self.board_pins:
|
|
hdr_file.write("#define pyb_pin_{:s} pin_{:s}\n".format(named_pin.name(), named_pin.pin().cpu_pin_name()))
|
|
|
|
def print_qstr(self, qstr_filename):
|
|
with open(qstr_filename, 'wt') as qstr_file:
|
|
qstr_set = set([])
|
|
for named_pin in self.cpu_pins:
|
|
pin = named_pin.pin()
|
|
if pin.is_board_pin():
|
|
qstr_set |= set(pin.qstr_list())
|
|
qstr_set |= set([named_pin.name()])
|
|
for named_pin in self.board_pins:
|
|
qstr_set |= set([named_pin.name()])
|
|
for qstr in sorted(qstr_set):
|
|
cond_var = None
|
|
if qstr.startswith('AF'):
|
|
af_words = qstr.split('_')
|
|
cond_var = conditional_var(af_words[1])
|
|
print_conditional_if(cond_var, file=qstr_file)
|
|
print('Q({})'.format(qstr), file=qstr_file)
|
|
print_conditional_endif(cond_var, file=qstr_file)
|
|
|
|
def print_af_hdr(self, af_const_filename):
|
|
with open(af_const_filename, 'wt') as af_const_file:
|
|
af_hdr_set = set([])
|
|
mux_name_width = 0
|
|
for named_pin in self.cpu_pins:
|
|
pin = named_pin.pin()
|
|
if pin.is_board_pin():
|
|
for af in pin.alt_fn:
|
|
if af.is_supported():
|
|
mux_name = af.mux_name()
|
|
af_hdr_set |= set([mux_name])
|
|
if len(mux_name) > mux_name_width:
|
|
mux_name_width = len(mux_name)
|
|
for mux_name in sorted(af_hdr_set):
|
|
af_words = mux_name.split('_') # ex mux_name: AF9_I2C2
|
|
cond_var = conditional_var(af_words[1])
|
|
print_conditional_if(cond_var, file=af_const_file)
|
|
key = 'MP_OBJ_NEW_QSTR(MP_QSTR_{}),'.format(mux_name)
|
|
val = 'MP_OBJ_NEW_SMALL_INT(GPIO_{})'.format(mux_name)
|
|
print(' { %-*s %s },' % (mux_name_width + 26, key, val),
|
|
file=af_const_file)
|
|
print_conditional_endif(cond_var, file=af_const_file)
|
|
|
|
def print_af_py(self, af_py_filename):
|
|
with open(af_py_filename, 'wt') as af_py_file:
|
|
print('PINS_AF = (', file=af_py_file);
|
|
for named_pin in self.board_pins:
|
|
print(" ('%s', " % named_pin.name(), end='', file=af_py_file)
|
|
for af in named_pin.pin().alt_fn:
|
|
if af.is_supported():
|
|
print("(%d, '%s'), " % (af.idx, af.af_str), end='', file=af_py_file)
|
|
print('),', file=af_py_file)
|
|
print(')', file=af_py_file)
|
|
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(
|
|
prog="make-pins.py",
|
|
usage="%(prog)s [options] [command]",
|
|
description="Generate board specific pin file"
|
|
)
|
|
parser.add_argument(
|
|
"-a", "--af",
|
|
dest="af_filename",
|
|
help="Specifies the alternate function file for the chip",
|
|
default="stm32f4xx_af.csv"
|
|
)
|
|
parser.add_argument(
|
|
"--af-const",
|
|
dest="af_const_filename",
|
|
help="Specifies header file for alternate function constants.",
|
|
default="build/pins_af_const.h"
|
|
)
|
|
parser.add_argument(
|
|
"--af-py",
|
|
dest="af_py_filename",
|
|
help="Specifies the filename for the python alternate function mappings.",
|
|
default="build/pins_af.py"
|
|
)
|
|
parser.add_argument(
|
|
"-b", "--board",
|
|
dest="board_filename",
|
|
help="Specifies the board file",
|
|
)
|
|
parser.add_argument(
|
|
"-p", "--prefix",
|
|
dest="prefix_filename",
|
|
help="Specifies beginning portion of generated pins file",
|
|
default="stm32f4xx_prefix.c"
|
|
)
|
|
parser.add_argument(
|
|
"-q", "--qstr",
|
|
dest="qstr_filename",
|
|
help="Specifies name of generated qstr header file",
|
|
default="build/pins_qstr.h"
|
|
)
|
|
parser.add_argument(
|
|
"-r", "--hdr",
|
|
dest="hdr_filename",
|
|
help="Specifies name of generated pin header file",
|
|
default="build/pins.h"
|
|
)
|
|
args = parser.parse_args(sys.argv[1:])
|
|
|
|
pins = Pins()
|
|
|
|
print('// This file was automatically generated by make-pins.py')
|
|
print('//')
|
|
if args.af_filename:
|
|
print('// --af {:s}'.format(args.af_filename))
|
|
pins.parse_af_file(args.af_filename, 1, 2)
|
|
|
|
if args.board_filename:
|
|
print('// --board {:s}'.format(args.board_filename))
|
|
pins.parse_board_file(args.board_filename)
|
|
|
|
if args.prefix_filename:
|
|
print('// --prefix {:s}'.format(args.prefix_filename))
|
|
print('')
|
|
with open(args.prefix_filename, 'r') as prefix_file:
|
|
print(prefix_file.read())
|
|
pins.print()
|
|
pins.print_adc(1)
|
|
pins.print_adc(2)
|
|
pins.print_adc(3)
|
|
pins.print_header(args.hdr_filename)
|
|
pins.print_qstr(args.qstr_filename)
|
|
pins.print_af_hdr(args.af_const_filename)
|
|
pins.print_af_py(args.af_py_filename)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|