stm32/boards/make-pins.py: Update to use tools/boardgen.py.
Requires additions to tools/boardgen.py for stm32 pin generation. This work was funded through GitHub Sponsors. Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This commit is contained in:
Jim Mussared
Damien George
parent
b4236c7368
commit
724ebb9916
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@ -1,59 +1,17 @@
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#!/usr/bin/env python
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#!/usr/bin/env python
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"""
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Generates pin source files based on an MCU alternate-function definition (eg
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stm32f405_af.csv) and a board-specific pin definition file, pins.csv.
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The pins.csv file can contain empty lines, comments (a line beginning with "#")
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from collections import defaultdict, namedtuple
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or pin definition lines. Pin definition lines must be of the form:
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import os
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import re
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board,cpu
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Where "board" is the user-facing name of the pin as specified by the particular
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board layout and markings, and "cpu" is the corresponding name of the CPU/MCU
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pin.
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The "board" entry may be absent if the CPU pin has no additional name, and both
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entries may start with "-" to hide them from the corresponding Python dict of
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pins, and hence hide them from the user (but they are still accessible in C).
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For example, take the following pins.csv file:
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X1,PA0
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-X2,PA1
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X3,-PA2
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-X4,-PA3
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,PA4
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,-PA5
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The first row here configures:
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- The CPU pin PA0 is labelled X1.
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- The Python user can access both by the names Pin("X1") and Pin("A0").
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- The Python user can access both by the members Pin.board.X1 and Pin.cpu.A0.
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- In C code they are available as pyb_pin_X1 and pin_A0.
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Prefixing the names with "-" hides them from the user. The following table
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summarises the various possibilities:
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pins.csv entry | board name | cpu name | C board name | C cpu name
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---------------+------------+----------+--------------+-----------
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X1,PA0 "X1" "A0" pyb_pin_X1 pin_A0
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-X2,PA1 - "A1" pyb_pin_X2 pin_A1
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X3,-PA2 "X3" - pyb_pin_X3 pin_A2
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-X4,-PA3 - - pyb_pin_X4 pin_A3
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,PA4 - "A4" - pin_A4
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,-PA5 - - - pin_A5
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"""
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from __future__ import print_function
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import argparse
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import sys
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import sys
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import csv
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), "../../../tools"))
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import boardgen
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# Must have matching entries in AF_FN_* enum in ../pin_defs_stm32.h
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# Must have matching entries in AF_FN_* enum in ../pin_defs_stm32.h
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SUPPORTED_FN = {
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SUPPORTED_AF = {
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"TIM": ["CH1", "CH2", "CH3", "CH4", "CH1N", "CH2N", "CH3N", "CH1_ETR", "ETR", "BKIN"],
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"TIM": ["CH1", "CH2", "CH3", "CH4", "CH1N", "CH2N", "CH3N", "CH1_ETR", "ETR", "BKIN"],
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"I2C": ["SDA", "SCL"],
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"I2C": ["SDA", "SCL"],
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"I2S": ["CK", "MCK", "SD", "WS", "EXTSD"],
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"I2S": ["CK", "MCK", "SD", "WS", "EXTSD"],
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@ -65,6 +23,8 @@ SUPPORTED_FN = {
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"CAN": ["TX", "RX"],
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"CAN": ["TX", "RX"],
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}
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}
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# Only make these AFs available if we actually enable those peripherals (by
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# assigning default pins in mpconfigboard.h).
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CONDITIONAL_VAR = {
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CONDITIONAL_VAR = {
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"I2C": "MICROPY_HW_I2C{num}_SCL",
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"I2C": "MICROPY_HW_I2C{num}_SCL",
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"I2S": "MICROPY_HW_I2S{num}",
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"I2S": "MICROPY_HW_I2S{num}",
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@ -76,487 +36,337 @@ CONDITIONAL_VAR = {
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"CAN": "MICROPY_HW_CAN{num}_TX",
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"CAN": "MICROPY_HW_CAN{num}_TX",
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}
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}
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# Contains the result of parsing an cell from af.csv.
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def parse_port_pin(name_str):
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PinAf = namedtuple(
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"""Parses a string and returns a (port-num, pin-num) tuple."""
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"PinAf",
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if len(name_str) < 3:
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[
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raise ValueError("Expecting pin name to be at least 3 characters.")
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"af_idx", # int, 0-15
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if name_str[0] != "P":
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"af_fn", # e.g. "I2C"
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raise ValueError("Expecting pin name to start with P")
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"af_unit", # int, e.g. 1 (for I2C1) or None (for OTG_HS_ULPI_CK)
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if name_str[1] < "A" or name_str[1] > "K":
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"af_pin", # e.g. "SDA"
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raise ValueError("Expecting pin port to be between A and K")
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"af_supported", # bool, see table above
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port = ord(name_str[1]) - ord("A")
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"af_name", # e.g. "I2C1_SDA"
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pin_str = name_str[2:]
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],
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if not pin_str.isdigit():
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)
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raise ValueError("Expecting numeric pin number.")
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return (port, int(pin_str))
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def split_name_num(name_num):
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class Stm32Pin(boardgen.Pin):
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num = None
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def __init__(self, cpu_pin_name):
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for num_idx in range(len(name_num) - 1, -1, -1):
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super().__init__(cpu_pin_name)
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if not name_num[num_idx].isdigit():
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name = name_num[0 : num_idx + 1]
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num_str = name_num[num_idx + 1 :]
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if len(num_str) > 0:
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num = int(num_str)
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break
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return name, num
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# P<port><num> (already verified by validate_cpu_pin_name).
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self._port = cpu_pin_name[1]
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self._pin = int(cpu_pin_name[2:])
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def conditional_var(name_num):
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# List of PinAf instances.
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# Try the specific instance first. For example, if name_num is UART4_RX
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self._afs = []
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# then try UART4 first, and then try UART second.
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name, num = split_name_num(name_num)
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var = []
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if name in CONDITIONAL_VAR:
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var.append(CONDITIONAL_VAR[name].format(num=num))
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if name_num in CONDITIONAL_VAR:
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var.append(CONDITIONAL_VAR[name_num])
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return var
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# The channel that this pin uses on each of the listed units.
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self._adc_channel = 0
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# e.g. ADC123 -> [1,2,3]
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self._adc_units = []
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def print_conditional_if(cond_var, file):
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# Called for each AF defined in the csv file for this pin. e.g. "SPI2_NSS/I2S2_WS"
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if cond_var:
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def add_af(self, af_idx, af_name, af):
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cond_str = []
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if af_idx > 16:
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for var in cond_var:
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# The AF csv files should not have more than 16 AFs + 1 ADC list.
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if var.find("ENABLE") >= 0:
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return
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cond_str.append("(defined({0}) && {0})".format(var))
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# AF 16 is the ADC, which is special cased below.
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if af_idx == 16:
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if af_name != "ADC":
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raise boardgen.PinGeneratorError(
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"Invalid AF column name '{:s}' for ADC column with index {:d}.".format(
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af_name, af_idx
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)
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)
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return self.add_adc(af)
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if af_name != "AF{:d}".format(af_idx):
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raise boardgen.PinGeneratorError(
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"Invalid AF column name '{:s}' for AF index {:d}.".format(af_name, af_idx)
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)
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# If there is a slash, then the slash separates multiple aliases for
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# the same alternate function.
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for af_name in af.split("/"):
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if not af_name.strip():
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continue
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# This matches <fn><unit>_<pin>, with consideration for:
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# - fn may contain a digit (e.g. I2C)
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# - there may be an "ext" after the unit
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m = re.match("([A-Z0-9]+[A-Z])(([0-9]+)(ext)?)?(_(.*))?", af_name)
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if not m:
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raise boardgen.PinGeneratorError(
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"Invalid af '{:s}' for pin '{:s}'".format(af_name, self.name())
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)
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else:
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else:
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cond_str.append("defined({0})".format(var))
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af_fn = m.group(1)
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print("#if " + " || ".join(cond_str), file=file)
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af_unit = int(m.group(3)) if m.group(3) is not None else None
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af_ext = m.group(4) == "ext"
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af_pin = m.group(6)
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# Special case. We change I2S2ext_SD into I2S2_EXTSD so that it parses
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# the same way the other peripherals do.
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if af_ext:
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af_pin = "EXT" + af_pin
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def print_conditional_endif(cond_var, file):
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af_supported = af_fn in SUPPORTED_AF and af_pin in SUPPORTED_AF[af_fn]
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if cond_var:
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print("#endif", file=file)
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self._afs.append(PinAf(af_idx, af_fn, af_unit, af_pin, af_supported, af_name))
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class AlternateFunction(object):
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# ADCs are slash separated "ADC<list of units>_<mode><channel>", where unit=1,2,3,4,5 and mode=IN,INN,INP
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"""Holds the information associated with a pins alternate function."""
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def add_adc(self, adc):
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if not adc.strip():
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def __init__(self, idx, af_str):
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self.idx = idx
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# Special case. We change I2S2ext_SD into I2S2_EXTSD so that it parses
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# the same way the other peripherals do.
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af_str = af_str.replace("ext_", "_EXT")
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self.af_str = af_str
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self.func = ""
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self.fn_num = None
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self.pin_type = ""
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self.supported = False
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af_words = af_str.split("_", 1)
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self.func, self.fn_num = split_name_num(af_words[0])
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if len(af_words) > 1:
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self.pin_type = af_words[1]
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if self.func in SUPPORTED_FN:
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pin_types = SUPPORTED_FN[self.func]
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if self.pin_type in pin_types:
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self.supported = True
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def is_supported(self):
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return self.supported
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def ptr(self):
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"""Returns the numbered function (i.e. USART6) for this AF."""
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if self.fn_num is None:
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return self.func
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return "{:s}{:d}".format(self.func, self.fn_num)
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def mux_name(self):
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return "AF{:d}_{:s}".format(self.idx, self.ptr())
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def print(self, out_source):
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"""Prints the C representation of this AF."""
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cond_var = None
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if self.supported:
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cond_var = conditional_var("{}{}".format(self.func, self.fn_num))
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print_conditional_if(cond_var, file=out_source)
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print(" AF", end="", file=out_source)
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else:
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print(" //", end="", file=out_source)
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fn_num = self.fn_num
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if fn_num is None:
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fn_num = 0
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print(
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"({:2d}, {:8s}, {:2d}, {:10s}, {:8s}), // {:s}".format(
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self.idx, self.func, fn_num, self.pin_type, self.ptr(), self.af_str
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),
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file=out_source,
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)
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print_conditional_endif(cond_var, file=out_source)
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class Pin(object):
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"""Holds the information associated with a pin."""
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def __init__(self, port, pin):
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self.port = port
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self.pin = pin
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self.alt_fn = []
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self.alt_fn_count = 0
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self.adc_num = 0
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self.adc_channel = 0
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self.board_pin = False
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def port_letter(self):
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return chr(self.port + ord("A"))
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def cpu_pin_name(self):
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return "{:s}{:d}".format(self.port_letter(), self.pin)
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def is_board_pin(self):
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return self.board_pin
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def set_is_board_pin(self):
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self.board_pin = True
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def parse_adc(self, adc_str):
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if adc_str[:3] != "ADC":
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return
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return
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adc, channel = None, None
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if adc_str.find("_INP") != -1:
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# TODO: This needs to be improved to support the case where a pin can
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# STM32H7xx, entries have the form: ADCxx_IN[PN]yy/...
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# be the P for one channel, and the N for a different channel.
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sep = "_INP"
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# e.g. "ADC123_INP12/ADC123_INN11".
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else:
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for adc_name in adc.split("/"):
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# all other MCUs, entries have the form: ADCxx_INyy
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m = re.match("ADC([1-5]+)_(IN[NP]?)([0-9]+)$", adc_name)
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sep = "_IN"
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if not m:
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raise boardgen.PinGeneratorError(
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"Invalid adc '{:s}' for pin '{:s}'".format(adc_name, self.name())
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)
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adc_units = [int(x) for x in m.group(1)]
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_adc_mode = m.group(2)
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adc_channel = int(m.group(3))
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# Pick the entry with the most ADC peripherals
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# Pick the entry with the most ADC units, e.g. "ADC1_INP16/ADC12_INN1/ADC12_INP0" --> "ADC12_INN1".
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for ss in adc_str.split("/"):
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if len(adc_units) > len(self._adc_units):
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if ss.find(sep) != -1:
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self._adc_units = adc_units
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a, c = ss.split("_")
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self._adc_channel = adc_channel
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if adc is None or len(a) > len(adc):
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adc, channel = a, c
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if adc is None:
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return
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channel = channel[len(sep) - 1 :]
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for idx in range(3, len(adc)):
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adc_num = int(adc[idx]) # 1, 2, or 3
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self.adc_num |= 1 << (adc_num - 1)
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self.adc_channel = int(channel)
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def parse_af(self, af_idx, af_strs_in):
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if len(af_strs_in) == 0:
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return
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# If there is a slash, then the slash separates 2 aliases for the
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# same alternate function.
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af_strs = af_strs_in.split("/")
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for af_str in af_strs:
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alt_fn = AlternateFunction(af_idx, af_str)
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self.alt_fn.append(alt_fn)
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if alt_fn.is_supported():
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self.alt_fn_count += 1
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def alt_fn_name(self, null_if_0=False):
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if null_if_0 and self.alt_fn_count == 0:
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return "NULL"
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return "pin_{:s}_af".format(self.cpu_pin_name())
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def adc_num_str(self):
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str = ""
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for adc_num in range(1, 4):
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if self.adc_num & (1 << (adc_num - 1)):
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if len(str) > 0:
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str += " | "
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str += "PIN_ADC"
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str += chr(ord("0") + adc_num)
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if len(str) == 0:
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str = "0"
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return str
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def print(self, out_source):
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if self.alt_fn_count == 0:
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print("// ", end="", file=out_source)
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print("const pin_af_obj_t {:s}[] = {{".format(self.alt_fn_name()), file=out_source)
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|
||||||
for alt_fn in self.alt_fn:
|
|
||||||
alt_fn.print(out_source)
|
|
||||||
if self.alt_fn_count == 0:
|
|
||||||
print("// ", end="", file=out_source)
|
|
||||||
print("};", file=out_source)
|
|
||||||
print("", file=out_source)
|
|
||||||
print(
|
|
||||||
"const machine_pin_obj_t pin_{:s}_obj = 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,
|
|
||||||
),
|
|
||||||
file=out_source,
|
|
||||||
)
|
|
||||||
print("", file=out_source)
|
|
||||||
|
|
||||||
def print_header(self, out_header):
|
|
||||||
n = self.cpu_pin_name()
|
|
||||||
print("extern const machine_pin_obj_t pin_{:s}_obj;".format(n), file=out_header)
|
|
||||||
print("#define pin_{:s} (&pin_{:s}_obj)".format(n, n), file=out_header)
|
|
||||||
if self.alt_fn_count > 0:
|
|
||||||
print("extern const pin_af_obj_t pin_{:s}_af[];".format(n), file=out_header)
|
|
||||||
|
|
||||||
|
|
||||||
class NamedPin(object):
|
|
||||||
def __init__(self, name, pin):
|
|
||||||
if name.startswith("-"):
|
|
||||||
self._is_hidden = True
|
|
||||||
self._name = name[1:]
|
|
||||||
else:
|
|
||||||
self._is_hidden = False
|
|
||||||
self._name = name
|
|
||||||
self._pin = pin
|
|
||||||
|
|
||||||
def set_hidden(self, value):
|
|
||||||
self._is_hidden = value
|
|
||||||
|
|
||||||
def is_hidden(self):
|
|
||||||
return self._is_hidden
|
|
||||||
|
|
||||||
def pin(self):
|
|
||||||
return self._pin
|
|
||||||
|
|
||||||
|
# STM32-specific behavior, strip the "P" from the start of the name when emitting this pin.
|
||||||
|
# e.g. the #define is pin_A11 not pin_PA11. Fortunately we don't have to special case this
|
||||||
|
# as there are no places where emit the full "PA11" name.
|
||||||
def name(self):
|
def name(self):
|
||||||
return self._name
|
return self._cpu_pin_name[1:]
|
||||||
|
|
||||||
|
# Use the PIN() macro defined in stm32f4xx_prefix.c for defining the pin
|
||||||
class Pins(object):
|
# objects.
|
||||||
def __init__(self):
|
def definition(self):
|
||||||
self.cpu_pins = [] # list of NamedPin objects
|
# Generate bitfield of supported ADC units where lsb is unit 1 (e.g. [1,3] --> 0b101).
|
||||||
self.board_pins = [] # list of NamedPin objects
|
adc_units_bitfield = (
|
||||||
self.adc_table_size = {} # maps ADC number X to size of pin_adcX table
|
" | ".join("PIN_ADC{}".format(unit) for unit in self._adc_units) or "0"
|
||||||
|
|
||||||
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 named_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:
|
|
||||||
if len(row) == 0 or row[0].startswith("#"):
|
|
||||||
# Skip empty lines, and lines starting with "#"
|
|
||||||
continue
|
|
||||||
if len(row) != 2:
|
|
||||||
raise ValueError("Expecting two entries in a row")
|
|
||||||
|
|
||||||
cpu_pin_name = row[1]
|
|
||||||
cpu_pin_hidden = False
|
|
||||||
if cpu_pin_name.startswith("-"):
|
|
||||||
cpu_pin_name = cpu_pin_name[1:]
|
|
||||||
cpu_pin_hidden = True
|
|
||||||
try:
|
|
||||||
(port_num, pin_num) = parse_port_pin(cpu_pin_name)
|
|
||||||
except:
|
|
||||||
continue
|
|
||||||
named_pin = self.find_pin(port_num, pin_num)
|
|
||||||
if named_pin:
|
|
||||||
named_pin.set_hidden(cpu_pin_hidden)
|
|
||||||
pin = named_pin.pin()
|
|
||||||
pin.set_is_board_pin()
|
|
||||||
if row[0]: # Only add board pins that have a name
|
|
||||||
self.board_pins.append(NamedPin(row[0], pin))
|
|
||||||
|
|
||||||
def print_named(self, label, named_pins, out_source):
|
|
||||||
print(
|
|
||||||
"STATIC const mp_rom_map_elem_t machine_pin_{:s}_pins_locals_dict_table[] = {{".format(
|
|
||||||
label
|
|
||||||
),
|
|
||||||
file=out_source,
|
|
||||||
)
|
)
|
||||||
for named_pin in named_pins:
|
|
||||||
pin = named_pin.pin()
|
# PIN(p_port, p_pin, p_af, p_adc_num, p_adc_channel)
|
||||||
if pin.is_board_pin() and not named_pin.is_hidden():
|
return "PIN({:s}, {:d}, pin_{:s}_af, {:s}, {:d})".format(
|
||||||
|
self._port, self._pin, self.name(), adc_units_bitfield, self._adc_channel
|
||||||
|
)
|
||||||
|
|
||||||
|
# This will be called at the start of the output (after the prefix). Use
|
||||||
|
# it to emit the af objects (via the AF() macro).
|
||||||
|
def print_source(self, out_source):
|
||||||
|
print(file=out_source)
|
||||||
|
print("const pin_af_obj_t pin_{:s}_af[] = {{".format(self.name()), file=out_source)
|
||||||
|
for af in self._afs:
|
||||||
|
if af.af_fn in CONDITIONAL_VAR:
|
||||||
print(
|
print(
|
||||||
" {{ MP_ROM_QSTR(MP_QSTR_{:s}), MP_ROM_PTR(&pin_{:s}_obj) }},".format(
|
" #if defined({:s})".format(
|
||||||
named_pin.name(), pin.cpu_pin_name()
|
CONDITIONAL_VAR[af.af_fn].format(num=af.af_unit)
|
||||||
),
|
),
|
||||||
file=out_source,
|
file=out_source,
|
||||||
)
|
)
|
||||||
print("};", file=out_source)
|
if af.af_supported:
|
||||||
print(
|
print(" ", end="", file=out_source)
|
||||||
"MP_DEFINE_CONST_DICT(machine_pin_{:s}_pins_locals_dict, machine_pin_{:s}_pins_locals_dict_table);".format(
|
|
||||||
label, label
|
|
||||||
),
|
|
||||||
file=out_source,
|
|
||||||
)
|
|
||||||
|
|
||||||
def print(self, out_source):
|
|
||||||
for named_pin in self.cpu_pins:
|
|
||||||
pin = named_pin.pin()
|
|
||||||
if pin.is_board_pin():
|
|
||||||
pin.print(out_source)
|
|
||||||
self.print_named("cpu", self.cpu_pins, out_source)
|
|
||||||
print("", file=out_source)
|
|
||||||
self.print_named("board", self.board_pins, out_source)
|
|
||||||
|
|
||||||
def print_adc(self, adc_num, out_source):
|
|
||||||
adc_pins = {}
|
|
||||||
for named_pin in self.cpu_pins:
|
|
||||||
pin = named_pin.pin()
|
|
||||||
if (
|
|
||||||
pin.is_board_pin()
|
|
||||||
and not named_pin.is_hidden()
|
|
||||||
and (pin.adc_num & (1 << (adc_num - 1)))
|
|
||||||
):
|
|
||||||
adc_pins[pin.adc_channel] = pin
|
|
||||||
if adc_pins:
|
|
||||||
table_size = max(adc_pins) + 1
|
|
||||||
else:
|
|
||||||
# If ADCx pins are hidden, print an empty table to prevent linker errors.
|
|
||||||
table_size = 0
|
|
||||||
self.adc_table_size[adc_num] = table_size
|
|
||||||
print("", file=out_source)
|
|
||||||
print(
|
|
||||||
"const machine_pin_obj_t * const pin_adc{:d}[{:d}] = {{".format(adc_num, table_size),
|
|
||||||
file=out_source,
|
|
||||||
)
|
|
||||||
for channel in range(table_size):
|
|
||||||
if channel in adc_pins:
|
|
||||||
obj = "&pin_{:s}_obj".format(adc_pins[channel].cpu_pin_name())
|
|
||||||
else:
|
else:
|
||||||
obj = "NULL"
|
print(" // ", end="", file=out_source)
|
||||||
print(" [{:d}] = {},".format(channel, obj), file=out_source)
|
# AF(af_idx, af_fn, af_unit, af_type, af_ptr)
|
||||||
|
print(
|
||||||
|
"AF({:d}, {:s}, {:d}, {:s}, {:s}{:s}), // {:s}".format(
|
||||||
|
af.af_idx,
|
||||||
|
af.af_fn,
|
||||||
|
af.af_unit or 0,
|
||||||
|
af.af_pin or "NONE",
|
||||||
|
af.af_fn,
|
||||||
|
"" if af.af_unit is None else str(af.af_unit),
|
||||||
|
af.af_name,
|
||||||
|
),
|
||||||
|
file=out_source,
|
||||||
|
)
|
||||||
|
if af.af_fn in CONDITIONAL_VAR:
|
||||||
|
print(" #endif", file=out_source)
|
||||||
print("};", file=out_source)
|
print("};", file=out_source)
|
||||||
|
|
||||||
def print_header(self, out_header, obj_decls):
|
# STM32 cpu names must be "P<port><num>".
|
||||||
if obj_decls:
|
@staticmethod
|
||||||
for named_pin in self.cpu_pins:
|
def validate_cpu_pin_name(cpu_pin_name):
|
||||||
pin = named_pin.pin()
|
boardgen.Pin.validate_cpu_pin_name(cpu_pin_name)
|
||||||
if pin.is_board_pin():
|
|
||||||
pin.print_header(out_header)
|
if not re.match("P[A-K][0-9]+$", cpu_pin_name):
|
||||||
for adc_num, table_size in self.adc_table_size.items():
|
raise boardgen.PinGeneratorError("Invalid cpu pin name '{}'".format(cpu_pin_name))
|
||||||
print(
|
|
||||||
"extern const machine_pin_obj_t * const pin_adc{:d}[{:d}];".format(
|
|
||||||
adc_num, table_size
|
class Stm32PinGenerator(boardgen.PinGenerator):
|
||||||
),
|
def __init__(self):
|
||||||
file=out_header,
|
# Use custom pin type above, and also enable the --af-csv argument so
|
||||||
)
|
# that add_af gets called on each pin.
|
||||||
# provide #define's mapping board to cpu name
|
super().__init__(
|
||||||
for named_pin in self.board_pins:
|
pin_type=Stm32Pin,
|
||||||
|
enable_af=True,
|
||||||
|
)
|
||||||
|
|
||||||
|
# STM32-specific behavior, we use pin_A0 for the cpu names, but
|
||||||
|
# pyb_pin_X11 for the board names.
|
||||||
|
def board_name_define_prefix(self):
|
||||||
|
return "pyb_"
|
||||||
|
|
||||||
|
# Override the default implementation just to change the default arguments
|
||||||
|
# (extra header row, skip first column).
|
||||||
|
def parse_af_csv(self, filename):
|
||||||
|
return super().parse_af_csv(filename, header_rows=2, pin_col=1, af_col=2)
|
||||||
|
|
||||||
|
# Find which ADCs are used on this chip and on how many pins and the
|
||||||
|
# maximum channel number for each.
|
||||||
|
def count_adc_pins(self):
|
||||||
|
adc_units = defaultdict(lambda: (0, 0))
|
||||||
|
for pin in self._pins: # All pins
|
||||||
|
for unit in pin._adc_units:
|
||||||
|
num, max_channel = adc_units[unit]
|
||||||
|
if pin._available:
|
||||||
|
adc_units[unit] = num + 1, max(max_channel, pin._adc_channel)
|
||||||
|
return adc_units.items()
|
||||||
|
|
||||||
|
# Print table of pins for each ADC (indexed by channel).
|
||||||
|
def print_adcs(self, out_source):
|
||||||
|
for adc_unit, (num_pins, max_channel) in self.count_adc_pins():
|
||||||
|
print(file=out_source)
|
||||||
print(
|
print(
|
||||||
"#define pyb_pin_{:s} pin_{:s}".format(
|
"const machine_pin_obj_t * const pin_adc{:d}[{:d}] = {{".format(
|
||||||
named_pin.name(), named_pin.pin().cpu_pin_name()
|
adc_unit, max_channel + 1
|
||||||
),
|
),
|
||||||
file=out_header,
|
file=out_source,
|
||||||
|
)
|
||||||
|
# Don't include pins that weren't in pins.csv.
|
||||||
|
for pin in self.available_pins():
|
||||||
|
if adc_unit in pin._adc_units:
|
||||||
|
print(
|
||||||
|
" [{:d}] = {:s},".format(pin._adc_channel, self._cpu_pin_pointer(pin)),
|
||||||
|
file=out_source,
|
||||||
|
)
|
||||||
|
print("};", file=out_source)
|
||||||
|
|
||||||
|
# Print externs for the adc pin tables.
|
||||||
|
def print_adc_externs(self, out_source):
|
||||||
|
print(file=out_source)
|
||||||
|
for adc_unit, (num_pins, max_channel) in self.count_adc_pins():
|
||||||
|
print(
|
||||||
|
"extern const machine_pin_obj_t * const pin_adc{:d}[{:d}];".format(
|
||||||
|
adc_unit, max_channel + 1
|
||||||
|
),
|
||||||
|
file=out_source,
|
||||||
)
|
)
|
||||||
|
|
||||||
def print_af_hdr(self, out_af_const):
|
# Append ADC definitions to the end of the source output.
|
||||||
af_hdr_set = set([])
|
def print_source(self, out_source):
|
||||||
mux_name_width = 0
|
super().print_source(out_source)
|
||||||
for named_pin in self.cpu_pins:
|
self.print_adcs(out_source)
|
||||||
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=out_af_const)
|
|
||||||
key = "MP_ROM_QSTR(MP_QSTR_{}),".format(mux_name)
|
|
||||||
val = "MP_ROM_INT(GPIO_{})".format(mux_name)
|
|
||||||
print(" { %-*s %s }," % (mux_name_width + 26, key, val), file=out_af_const)
|
|
||||||
print_conditional_endif(cond_var, file=out_af_const)
|
|
||||||
|
|
||||||
def print_af_defs(self, out_af_defs, cmp_strings):
|
# Append ADC externs to the end of the header output, and don't include
|
||||||
STATIC_AF_TOKENS = {}
|
# externs in mboot mode.
|
||||||
for named_pin in self.cpu_pins:
|
def print_header(self, out_header):
|
||||||
for af in named_pin.pin().alt_fn:
|
if self.args.mboot_mode:
|
||||||
func = "%s%d" % (af.func, af.fn_num) if af.fn_num else af.func
|
self.print_defines(out_header, cpu=False)
|
||||||
pin_type = (af.pin_type or "NULL").split("(")[0]
|
else:
|
||||||
tok = "#define STATIC_AF_%s_%s(pin_obj) ( \\" % (func, pin_type)
|
super().print_header(out_header)
|
||||||
if tok not in STATIC_AF_TOKENS:
|
self.print_adc_externs(out_header)
|
||||||
STATIC_AF_TOKENS[tok] = []
|
|
||||||
if cmp_strings:
|
# This is a set of map entries `MP_QSTR_AF<num>_<fn>` -> `GPIO_AF<num>_<fn>`
|
||||||
pin_name = named_pin.pin().cpu_pin_name()
|
# that become part of the locals dict of machine.Pin.
|
||||||
cmp_str = (
|
def print_af_const(self, out_af_const):
|
||||||
' ((strcmp( #pin_obj , "(&pin_%s_obj)") '
|
# Extract all unique "AF<num>_<fn>" values.
|
||||||
' & strcmp( #pin_obj , "((&pin_%s_obj))")) == 0) ? (%d) : \\'
|
names = set()
|
||||||
% (pin_name, pin_name, af.idx)
|
for pin in self.available_pins():
|
||||||
|
for af in pin._afs:
|
||||||
|
if not af.af_supported:
|
||||||
|
continue
|
||||||
|
key = (
|
||||||
|
"AF{:d}_{:s}{:d}".format(af.af_idx, af.af_fn, af.af_unit),
|
||||||
|
af.af_fn,
|
||||||
|
af.af_unit,
|
||||||
|
)
|
||||||
|
names.add(key)
|
||||||
|
|
||||||
|
# Generate the table.
|
||||||
|
for key in sorted(names):
|
||||||
|
name, af_fn, af_unit = key
|
||||||
|
if af_fn in CONDITIONAL_VAR:
|
||||||
|
print(
|
||||||
|
" #if defined({:s})".format(CONDITIONAL_VAR[af_fn].format(num=af_unit)),
|
||||||
|
file=out_af_const,
|
||||||
|
)
|
||||||
|
print(
|
||||||
|
" {{ MP_ROM_QSTR(MP_QSTR_{:s}), MP_ROM_INT(GPIO_{:s}) }},".format(name, name),
|
||||||
|
file=out_af_const,
|
||||||
|
)
|
||||||
|
if af_fn in CONDITIONAL_VAR:
|
||||||
|
print(" #endif", file=out_af_const)
|
||||||
|
|
||||||
|
# Output macros to compile-time match a pin object to its AF. See
|
||||||
|
# mp_hal_pin_config_alt_static and mp_hal_pin_config_alt_static_speed in
|
||||||
|
# pin_static_af.h.
|
||||||
|
def print_af_defs(self, out_af_defs):
|
||||||
|
# Get the set of unique "<fn><unit>_<pinfn>" (e.g. I2C1_SDA) and which
|
||||||
|
# pins can be used for each.
|
||||||
|
af_defs = defaultdict(list)
|
||||||
|
for pin in self._pins:
|
||||||
|
for af in pin._afs:
|
||||||
|
key = af.af_fn, af.af_unit, af.af_pin
|
||||||
|
af_defs[key].append((pin, af.af_idx))
|
||||||
|
|
||||||
|
# Emit a macro for each that will match a pin object to the
|
||||||
|
# corresponding af index for that pin doing that function.
|
||||||
|
for key, pins in af_defs.items():
|
||||||
|
af_fn, af_unit, af_pin = key
|
||||||
|
print(file=out_af_defs)
|
||||||
|
print(
|
||||||
|
"#define STATIC_AF_{:s}{:s}_{:s}(pin_obj) ( \\".format(
|
||||||
|
af_fn, "" if af_unit is None else str(af_unit), af_pin or "NULL"
|
||||||
|
),
|
||||||
|
file=out_af_defs,
|
||||||
|
)
|
||||||
|
for pin, af_idx in pins:
|
||||||
|
if self.args.mboot_mode:
|
||||||
|
print(
|
||||||
|
" ((pin_obj) == (pin_{:s})) ? ({:d}) : \\".format(pin.name(), af_idx),
|
||||||
|
file=out_af_defs,
|
||||||
)
|
)
|
||||||
else:
|
else:
|
||||||
cmp_str = " ((pin_obj) == (pin_%s)) ? (%d) : \\" % (
|
# Match either "(pin_A11_obj)" (if using pin_A11 or
|
||||||
named_pin.pin().cpu_pin_name(),
|
# pyb_pin_X11) or "((pin_A11_obj))" (if going via another
|
||||||
af.idx,
|
# macro e.g. MICROPY_HW_QSPIFLASH_CS).
|
||||||
|
# TODO: Why do we need do do string matching? (i.e. why can't the mboot behavior be used always?).
|
||||||
|
print(
|
||||||
|
' ((strcmp( #pin_obj , "(&pin_{:s}_obj)") & strcmp( #pin_obj , "((&pin_{:s}_obj))")) == 0) ? ({:d}) : \\'.format(
|
||||||
|
pin.name(), pin.name(), af_idx
|
||||||
|
),
|
||||||
|
file=out_af_defs,
|
||||||
)
|
)
|
||||||
STATIC_AF_TOKENS[tok].append(cmp_str)
|
print(" (0xffffffffffffffffULL))", file=out_af_defs)
|
||||||
|
|
||||||
for tok, pins in STATIC_AF_TOKENS.items():
|
# Additional stm32-specific outputs that will be written in
|
||||||
print(tok, file=out_af_defs)
|
# generate_extra_files().
|
||||||
print("\n".join(sorted(pins)), file=out_af_defs)
|
def extra_args(self, parser):
|
||||||
print(" (0xffffffffffffffffULL))\n", file=out_af_defs)
|
parser.add_argument("--output-af-const")
|
||||||
|
parser.add_argument("--output-af-defs")
|
||||||
|
|
||||||
|
# In mboot mode the af-defs use object rather than string comparison,
|
||||||
|
# and we don't include externs in the header file.
|
||||||
|
parser.add_argument("--mboot-mode", action="store_true")
|
||||||
|
|
||||||
def main():
|
# Called in main() after everything else is done to write additional files.
|
||||||
parser = argparse.ArgumentParser(description="Generate board specific pin file")
|
def generate_extra_files(self):
|
||||||
parser.add_argument("--board-csv")
|
if self.args.output_af_const:
|
||||||
parser.add_argument("--af-csv")
|
with open(self.args.output_af_const, "w") as out_af_const:
|
||||||
parser.add_argument("--prefix")
|
self.print_af_const(out_af_const)
|
||||||
parser.add_argument("--output-source")
|
|
||||||
parser.add_argument("--output-header")
|
|
||||||
parser.add_argument("--output-af-const")
|
|
||||||
parser.add_argument("--output-af-defs")
|
|
||||||
parser.add_argument("--mboot-mode", action="store_true")
|
|
||||||
args = parser.parse_args()
|
|
||||||
|
|
||||||
pins = Pins()
|
if self.args.output_af_defs:
|
||||||
|
with open(self.args.output_af_defs, "w") as out_af_defs:
|
||||||
with open(args.output_source, "w") as out_source:
|
self.print_af_defs(out_af_defs)
|
||||||
print("// This file was automatically generated by make-pins.py", file=out_source)
|
|
||||||
print("//", file=out_source)
|
|
||||||
if args.af_csv:
|
|
||||||
print("// --af {:s}".format(args.af_csv), file=out_source)
|
|
||||||
pins.parse_af_file(args.af_csv, 1, 2)
|
|
||||||
|
|
||||||
if args.board_csv:
|
|
||||||
print("// --board {:s}".format(args.board_csv), file=out_source)
|
|
||||||
pins.parse_board_file(args.board_csv)
|
|
||||||
|
|
||||||
if args.prefix:
|
|
||||||
print("// --prefix {:s}".format(args.prefix), file=out_source)
|
|
||||||
print("", file=out_source)
|
|
||||||
with open(args.prefix, "r") as prefix_file:
|
|
||||||
print(prefix_file.read(), file=out_source)
|
|
||||||
|
|
||||||
pins.print(out_source)
|
|
||||||
for i in range(1, 4):
|
|
||||||
pins.print_adc(i, out_source)
|
|
||||||
|
|
||||||
with open(args.output_header, "w") as out_header:
|
|
||||||
pins.print_header(out_header, not args.mboot_mode)
|
|
||||||
|
|
||||||
with open(args.output_af_const, "w") as out_af_const:
|
|
||||||
pins.print_af_hdr(out_af_const)
|
|
||||||
|
|
||||||
with open(args.output_af_defs, "w") as out_af_defs:
|
|
||||||
pins.print_af_defs(out_af_defs, not args.mboot_mode)
|
|
||||||
|
|
||||||
|
|
||||||
if __name__ == "__main__":
|
if __name__ == "__main__":
|
||||||
main()
|
Stm32PinGenerator().main()
|
||||||
|
|
|
||||||
|
|
@ -344,8 +344,13 @@ class PinGenerator:
|
||||||
def _cpu_pin_pointer(self, pin):
|
def _cpu_pin_pointer(self, pin):
|
||||||
return "&pin_{:s}_obj".format(pin.name())
|
return "&pin_{:s}_obj".format(pin.name())
|
||||||
|
|
||||||
|
# Allow a port to prefix the board pin macro names with something.
|
||||||
|
# e.g. STM32 does pyb_pin_NAME whereas other ports using pin_NAME.
|
||||||
|
def board_name_define_prefix(self):
|
||||||
|
return ""
|
||||||
|
|
||||||
# Print the pin_CPUNAME and pin_BOARDNAME macros.
|
# Print the pin_CPUNAME and pin_BOARDNAME macros.
|
||||||
def print_defines(self, out_header):
|
def print_defines(self, out_header, cpu=True, board=True):
|
||||||
# Provide #defines for each cpu pin.
|
# Provide #defines for each cpu pin.
|
||||||
for pin in self.available_pins():
|
for pin in self.available_pins():
|
||||||
print(file=out_header)
|
print(file=out_header)
|
||||||
|
|
@ -354,29 +359,70 @@ class PinGenerator:
|
||||||
print("#if {}".format(m), file=out_header)
|
print("#if {}".format(m), file=out_header)
|
||||||
|
|
||||||
# #define pin_CPUNAME (...)
|
# #define pin_CPUNAME (...)
|
||||||
print(
|
if cpu:
|
||||||
"#define pin_{:s} ({:s})".format(pin.name(), self._cpu_pin_pointer(pin)),
|
|
||||||
file=out_header,
|
|
||||||
)
|
|
||||||
|
|
||||||
# #define pin_BOARDNAME (pin_CPUNAME)
|
|
||||||
for board_pin_name, _board_hidden in pin._board_pin_names:
|
|
||||||
# Note: Hidden board pins are still available to C via the macro.
|
|
||||||
print(
|
print(
|
||||||
"#define pin_{:s} (pin_{:s})".format(
|
"#define pin_{:s} ({:s})".format(pin.name(), self._cpu_pin_pointer(pin)),
|
||||||
board_pin_name,
|
|
||||||
pin.name(),
|
|
||||||
),
|
|
||||||
file=out_header,
|
file=out_header,
|
||||||
)
|
)
|
||||||
|
|
||||||
|
# #define pin_BOARDNAME (pin_CPUNAME)
|
||||||
|
if board:
|
||||||
|
for board_pin_name, _board_hidden in pin._board_pin_names:
|
||||||
|
# Note: Hidden board pins are still available to C via the macro.
|
||||||
|
# Note: The RHS isn't wrapped in (), which is necessary to make the
|
||||||
|
# STATIC_AF_ macro work on STM32.
|
||||||
|
print(
|
||||||
|
"#define {:s}pin_{:s} pin_{:s}".format(
|
||||||
|
self.board_name_define_prefix(),
|
||||||
|
board_pin_name,
|
||||||
|
pin.name(),
|
||||||
|
),
|
||||||
|
file=out_header,
|
||||||
|
)
|
||||||
|
|
||||||
|
if m:
|
||||||
|
print("#endif", file=out_header)
|
||||||
|
|
||||||
|
def print_pin_objects(self, out_source):
|
||||||
|
print(file=out_source)
|
||||||
|
for pin in self.available_pins():
|
||||||
|
m = pin.enable_macro()
|
||||||
|
if m:
|
||||||
|
print("#if {}".format(m), file=out_source)
|
||||||
|
print(
|
||||||
|
"{:s}machine_pin_obj_t pin_{:s}_obj = {:s};".format(
|
||||||
|
"const " if pin.is_const() else "",
|
||||||
|
pin.name(),
|
||||||
|
pin.definition(),
|
||||||
|
),
|
||||||
|
file=out_source,
|
||||||
|
)
|
||||||
|
if m:
|
||||||
|
print("#endif", file=out_source)
|
||||||
|
|
||||||
|
def print_pin_object_externs(self, out_header):
|
||||||
|
print(file=out_header)
|
||||||
|
for pin in self.available_pins():
|
||||||
|
m = pin.enable_macro()
|
||||||
|
if m:
|
||||||
|
print("#if {}".format(m), file=out_header)
|
||||||
|
print(
|
||||||
|
"extern {:s}machine_pin_obj_t pin_{:s}_obj;".format(
|
||||||
|
"const " if pin.is_const() else "",
|
||||||
|
pin.name(),
|
||||||
|
),
|
||||||
|
file=out_header,
|
||||||
|
)
|
||||||
if m:
|
if m:
|
||||||
print("#endif", file=out_header)
|
print("#endif", file=out_header)
|
||||||
|
|
||||||
def print_source(self, out_source):
|
def print_source(self, out_source):
|
||||||
raise NotImplementedError
|
self.print_pin_objects(out_source)
|
||||||
|
self.print_cpu_locals_dict(out_source)
|
||||||
|
self.print_board_locals_dict(out_source)
|
||||||
|
|
||||||
def print_header(self, out_header):
|
def print_header(self, out_header):
|
||||||
|
self.print_pin_object_externs(out_header)
|
||||||
self.print_defines(out_header)
|
self.print_defines(out_header)
|
||||||
|
|
||||||
# A port can override this if it has extra input files (e.g. af.csv) to load.
|
# A port can override this if it has extra input files (e.g. af.csv) to load.
|
||||||
|
|
@ -498,6 +544,10 @@ class NumericPinGenerator(PinGenerator):
|
||||||
self.print_cpu_table(out_source)
|
self.print_cpu_table(out_source)
|
||||||
self.print_board_locals_dict(out_source)
|
self.print_board_locals_dict(out_source)
|
||||||
|
|
||||||
|
# Replace PinGenerator's implementation to only print the defines.
|
||||||
|
def print_header(self, out_header):
|
||||||
|
self.print_defines(out_header)
|
||||||
|
|
||||||
def _cpu_pin_pointer(self, pin):
|
def _cpu_pin_pointer(self, pin):
|
||||||
n = pin.index_name()
|
n = pin.index_name()
|
||||||
if n is not None:
|
if n is not None:
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue