kopia lustrzana https://github.com/micropython/micropython
rp2/machine_pin: Add support for named pins and alternate functions.
This commit adds support for generating named pin mappings for all pins including CPU, board-defined, LED and externally controlled pins. CPU pins are mapped to `pin_GPIO<n>`, externally-controlled pins are mapped to `pin_EXT_GPIO<n>`, and defined conditionally (up to 10 pins, and can be expanded in the future), and they are non-const to allow `machine-pin.c` to write the pin object fields. Both CPU and externally controlled pins are generated even if there's no board CSV file; if one exists it will just be added to board pins.pull/9731/head
iabdalkader
Damien George
rodzic
66e0cfc3b9
commit
c214c9e648
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@ -131,6 +131,7 @@ set(MICROPY_SOURCE_PORT
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usbd.c
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msc_disk.c
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mbedtls/mbedtls_port.c
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${CMAKE_BINARY_DIR}/pins_${MICROPY_BOARD}.c
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)
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set(MICROPY_SOURCE_QSTR
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@ -153,6 +154,7 @@ set(MICROPY_SOURCE_QSTR
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${PROJECT_SOURCE_DIR}/modutime.c
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${PROJECT_SOURCE_DIR}/rp2_flash.c
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${PROJECT_SOURCE_DIR}/rp2_pio.c
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${CMAKE_BINARY_DIR}/pins_${MICROPY_BOARD}.c
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)
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set(PICO_SDK_COMPONENTS
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@ -257,14 +259,14 @@ if (MICROPY_PY_NETWORK_CYW43)
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)
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endif()
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list(APPEND MICROPY_SOURCE_EXTMOD
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${MICROPY_DIR}/extmod/network_cyw43.c
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)
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list(APPEND MICROPY_SOURCE_PORT
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machine_pin_cyw43.c
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)
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list(APPEND MICROPY_SOURCE_EXTMOD
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${MICROPY_DIR}/extmod/network_cyw43.c
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)
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target_link_libraries(${MICROPY_TARGET}
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cyw43_driver_picow
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cmsis_core
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@ -439,3 +441,37 @@ endforeach()
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# Include the main MicroPython cmake rules.
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include(${MICROPY_DIR}/py/mkrules.cmake)
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set(MICROPY_BOARDS_DIR "${MICROPY_PORT_DIR}/boards")
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set(GEN_PINS_AF_CSV "${MICROPY_BOARDS_DIR}/rp2_af.csv")
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set(GEN_PINS_PREFIX "${MICROPY_BOARDS_DIR}/rp2_prefix.c")
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set(GEN_PINS_MKPINS "${MICROPY_BOARDS_DIR}/make-pins.py")
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set(GEN_PINS_SRC "${CMAKE_BINARY_DIR}/pins_${MICROPY_BOARD}.c")
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set(GEN_PINS_HDR "${MICROPY_GENHDR_DIR}/pins.h")
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set(GEN_PINS_QSTR "${CMAKE_BINARY_DIR}/pins_qstr.h")
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set(GEN_PINS_AF_CONST "${MICROPY_GENHDR_DIR}/pins_af_const.h")
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set(GEN_PINS_AF_PY "${CMAKE_BINARY_DIR}/pins_af.py")
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if(EXISTS "${MICROPY_BOARDS_DIR}/${MICROPY_BOARD}/pins.csv")
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set(GEN_PINS_BOARD_CSV "${MICROPY_BOARDS_DIR}/${MICROPY_BOARD}/pins.csv")
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set(GEN_PINS_CSV_ARG --board "${GEN_PINS_BOARD_CSV}")
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endif()
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target_sources(${MICROPY_TARGET} PRIVATE
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${GEN_PINS_HDR}
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)
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# Generate pins
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add_custom_command(
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OUTPUT ${GEN_PINS_HDR} ${GEN_PINS_SRC} ${GEN_PINS_QSTR}
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COMMAND ${Python3_EXECUTABLE} ${GEN_PINS_MKPINS} ${GEN_PINS_CSV_ARG} --af ${GEN_PINS_AF_CSV} --prefix ${GEN_PINS_PREFIX}
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--hdr ${GEN_PINS_HDR} --qstr ${GEN_PINS_QSTR} --af-const ${GEN_PINS_AF_CONST} --af-py ${GEN_PINS_AF_PY} > ${GEN_PINS_SRC}
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DEPENDS
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${GEN_PINS_AF_CSV}
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${GEN_PINS_BOARD_CSV}
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${GEN_PINS_MKPINS}
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${GEN_PINS_PREFIX}
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${MICROPY_MPVERSION}
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VERBATIM
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COMMAND_EXPAND_LISTS
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)
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@ -0,0 +1,428 @@
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#!/usr/bin/env python
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"""Creates the pin file for the RP2."""
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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 csv
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import re
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SUPPORTED_FN = {
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"SPI": ["TX", "RX", "SCK", "CS"],
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"UART": ["TX", "RX", "CTS", "RTS"],
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"I2C": ["SCL", "SDA"],
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"PWM": ["A", "B"],
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"SIO": [""],
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"PIO0": [""],
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"PIO1": [""],
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"GPCK": ["GPIN0", "GPOUT0", "GPIN1", "GPOUT1", "GPOUT2", "GPOUT3"],
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"USB": ["OVCUR_DET", "VBUS_DET", "VBUS_EN"],
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}
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def parse_pin(name_str):
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"""Parses a string and returns a pin number."""
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if len(name_str) < 2:
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raise ValueError("Expecting pin name to be at least 2 charcters.")
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if not name_str.startswith("GPIO") and not name_str.startswith("EXT_GPIO"):
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raise ValueError("Expecting pin name to start with EXT_/GPIO")
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return int(re.findall(r"\d+$", name_str)[0])
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def split_name_num(name_num):
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num = None
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for num_idx in range(len(name_num) - 1, -1, -1):
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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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if name == "PIO":
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name += str(num)
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return name, num
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class AlternateFunction(object):
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"""Holds the information associated with a pins alternate function."""
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def __init__(self, idx, af_str):
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self.idx = idx
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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):
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"""Prints the C representation of this AF."""
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if self.supported:
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print(" AF", end="")
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else:
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print(" //", end="")
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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("({:d}, {:4s}, {:d}), // {:s}".format(self.idx, self.func, fn_num, self.af_str))
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def qstr_list(self):
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return [self.mux_name()]
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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, pin, is_ext=False):
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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.is_board = False
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self.is_ext = is_ext
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def cpu_pin_name(self):
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return "{:s}GPIO{:d}".format("EXT_" if self.is_ext else "", self.pin)
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def is_board_pin(self):
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return self.is_board
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def set_is_board_pin(self):
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self.is_board = True
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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 print(self):
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if self.is_ext:
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print("#if (MICROPY_HW_PIN_EXT_COUNT > {:d})".format(self.pin))
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if self.alt_fn_count == 0:
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print("// ", end="")
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print("const machine_pin_af_obj_t {:s}[] = {{".format(self.alt_fn_name()))
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for alt_fn in self.alt_fn:
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alt_fn.print()
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if self.alt_fn_count == 0:
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print("// ", end="")
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print("};")
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print("")
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print(
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"{:s}machine_pin_obj_t pin_{:s} = PIN({:d}, {:s}, {:d}, {:d}, {:s});".format(
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"" if self.is_ext else "const ",
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self.cpu_pin_name(),
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self.pin,
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self.cpu_pin_name(),
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self.is_ext,
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self.alt_fn_count,
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self.alt_fn_name(null_if_0=True),
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)
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)
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if self.is_ext:
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print("#endif")
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print("")
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def print_header(self, hdr_file):
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n = self.cpu_pin_name()
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hdr_file.write(
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"extern{:s}machine_pin_obj_t pin_{:s};\n".format(" " if self.is_ext else " const ", n)
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)
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if self.alt_fn_count > 0:
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hdr_file.write("extern const machine_pin_af_obj_t pin_{:s}_af[];\n".format(n))
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def qstr_list(self):
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result = []
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for alt_fn in self.alt_fn:
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if alt_fn.is_supported():
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result += alt_fn.qstr_list()
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return result
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class NamedPin(object):
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def __init__(self, name, pin):
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self._name = name
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self._pin = pin
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def pin(self):
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return self._pin
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def name(self):
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return self._name
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class Pins(object):
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def __init__(self):
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self.cpu_pins = [] # list of NamedPin objects
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self.board_pins = [] # list of NamedPin objects
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self.ext_pins = [] # list of NamedPin objects
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for i in range(0, 10):
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self.ext_pins.append(NamedPin("EXT_GPIO{:d}".format(i), Pin(i, True)))
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def find_pin(self, pin_name):
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for pin in self.cpu_pins:
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if pin.name() == pin_name:
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return pin.pin()
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for pin in self.ext_pins:
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if pin.name() == pin_name:
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return pin.pin()
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def parse_af_file(self, filename, pinname_col, af_col):
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with open(filename, "r") as csvfile:
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rows = csv.reader(csvfile)
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for row in rows:
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try:
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pin_num = parse_pin(row[pinname_col])
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except Exception as e:
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# import traceback; traceback.print_exc()
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continue
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pin = Pin(pin_num)
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for af_idx in range(af_col, len(row)):
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if af_idx >= af_col:
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pin.parse_af(af_idx, row[af_idx])
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self.cpu_pins.append(NamedPin(pin.cpu_pin_name(), pin))
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def parse_board_file(self, filename):
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with open(filename, "r") as csvfile:
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rows = csv.reader(csvfile)
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for row in rows:
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if len(row) == 0 or row[0].startswith("#"):
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# Skip empty lines, and lines starting with "#"
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continue
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if len(row) != 2:
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raise ValueError("Expecting two entries in a row")
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cpu_pin_name = row[1]
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try:
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pin_num = parse_pin(cpu_pin_name)
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except:
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# import traceback; traceback.print_exc()
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continue
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pin = self.find_pin(cpu_pin_name)
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if pin:
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pin.set_is_board_pin()
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if row[0]: # Only add board pins that have a name
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self.board_pins.append(NamedPin(row[0], pin))
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def print_table(self, label, named_pins):
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print("")
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print("const machine_pin_obj_t *machine_pin_{:s}_pins[] = {{".format(label))
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for pin in named_pins:
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if not pin.pin().is_ext:
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print(" &pin_{},".format(pin.name()))
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print("};")
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print("")
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def print_named(self, label, named_pins):
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print("")
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print(
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"STATIC const mp_rom_map_elem_t pin_{:s}_pins_locals_dict_table[] = {{".format(label)
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)
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for named_pin in named_pins:
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pin = named_pin.pin()
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if pin.is_ext:
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print(" #if (MICROPY_HW_PIN_EXT_COUNT > {:d})".format(pin.pin))
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print(
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" {{ MP_ROM_QSTR(MP_QSTR_{:s}), MP_ROM_PTR(&pin_{:s}) }},".format(
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named_pin.name(), pin.cpu_pin_name()
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)
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)
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if pin.is_ext:
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print(" #endif")
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print("};")
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print(
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"MP_DEFINE_CONST_DICT(pin_{:s}_pins_locals_dict, pin_{:s}_pins_locals_dict_table);".format(
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label, label
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)
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)
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print("")
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def print(self):
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for pin in self.cpu_pins:
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pin.pin().print()
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for pin in self.ext_pins:
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if pin.pin().is_ext:
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pin.pin().print()
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self.print_table("cpu", self.cpu_pins)
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self.print_named("cpu", self.cpu_pins + self.ext_pins)
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self.print_named("board", self.board_pins)
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def print_header(self, hdr_filename, obj_decls):
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with open(hdr_filename, "wt") as hdr_file:
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if obj_decls:
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for named_pin in self.cpu_pins:
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pin = named_pin.pin()
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pin.print_header(hdr_file)
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for named_pin in self.board_pins:
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pin = named_pin.pin()
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if pin.is_ext:
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pin.print_header(hdr_file)
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# provide #define's mapping board to cpu name
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for named_pin in self.board_pins:
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if named_pin.pin().is_board_pin():
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hdr_file.write(
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"#define pin_{:s} pin_{:s}\n".format(
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named_pin.name(), named_pin.pin().cpu_pin_name()
|
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)
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)
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def print_qstr(self, qstr_filename):
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with open(qstr_filename, "wt") as qstr_file:
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qstr_set = set([])
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for named_pin in self.cpu_pins:
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pin = named_pin.pin()
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if pin.is_board_pin():
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qstr_set |= set(pin.qstr_list())
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qstr_set |= set([named_pin.name()])
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for named_pin in self.board_pins:
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qstr_set |= set([named_pin.name()])
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for qstr in sorted(qstr_set):
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print("Q({})".format(qstr), file=qstr_file)
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def print_af_hdr(self, af_const_filename):
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with open(af_const_filename, "wt") as af_const_file:
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af_hdr_set = set([])
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mux_name_width = 0
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for named_pin in self.cpu_pins:
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pin = named_pin.pin()
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if pin.is_board_pin():
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for af in pin.alt_fn:
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if af.is_supported():
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mux_name = af.mux_name()
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af_hdr_set |= set([mux_name])
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if len(mux_name) > mux_name_width:
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mux_name_width = len(mux_name)
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for mux_name in sorted(af_hdr_set):
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key = "MP_OBJ_NEW_QSTR(MP_QSTR_{}),".format(mux_name)
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val = "MP_OBJ_NEW_SMALL_INT(GPIO_{})".format(mux_name)
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print(" { %-*s %s }," % (mux_name_width + 26, key, val), file=af_const_file)
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def print_af_py(self, af_py_filename):
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with open(af_py_filename, "wt") as af_py_file:
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print("PINS_AF = (", file=af_py_file)
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for named_pin in self.board_pins:
|
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print(" ('%s', " % named_pin.name(), end="", file=af_py_file)
|
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for af in named_pin.pin().alt_fn:
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if af.is_supported():
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print("(%d, '%s'), " % (af.idx, af.af_str), end="", file=af_py_file)
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print("),", file=af_py_file)
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print(")", file=af_py_file)
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|
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|
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def main():
|
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parser = argparse.ArgumentParser(
|
||||
prog="make-pins.py",
|
||||
usage="%(prog)s [options] [command]",
|
||||
description="Generate board specific pin file",
|
||||
)
|
||||
parser.add_argument(
|
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"-a",
|
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"--af",
|
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dest="af_filename",
|
||||
help="Specifies the alternate function file for the chip",
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||||
default="rp2_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="rp2_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, 0, 1)
|
||||
|
||||
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_header(args.hdr_filename, True)
|
||||
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()
|
||||
|
|
@ -0,0 +1,31 @@
|
|||
Pin,AF1,AF2,AF3,AF4,AF5,AF6,AF7,AF8,AF9
|
||||
GPIO0,SPI0_RX,UART0_TX,I2C0_SDA,PWM0_A,SIO,PIO0,PIO1,,USB_OVCUR_DET
|
||||
GPIO1,SPI0_CS,UART0_RX,I2C0_SCL,PWM0_B,SIO,PIO0,PIO1,,USB_VBUS_DET
|
||||
GPIO2,SPI0_SCK,UART0_CTS,I2C1_SDA,PWM1_A,SIO,PIO0,PIO1,,USB_VBUS_EN
|
||||
GPIO3,SPI0_TX,UART0_RTS,I2C1_SCL,PWM1_B,SIO,PIO0,PIO1,,USB_OVCUR_DET
|
||||
GPIO4,SPI0_RX,UART1_TX,I2C0_SDA,PWM2_A,SIO,PIO0,PIO1,,USB_VBUS_DET
|
||||
GPIO5,SPI0_CS,UART1_RX,I2C0_SCL,PWM2_B,SIO,PIO0,PIO1,,USB_VBUS_EN
|
||||
GPIO6,SPI0_SCK,UART1_CTS,I2C1_SDA,PWM3_A,SIO,PIO0,PIO1,,USB_OVCUR_DET
|
||||
GPIO7,SPI0_TX,UART1_RTS,I2C1_SCL,PWM3_B,SIO,PIO0,PIO1,,USB_VBUS_DET
|
||||
GPIO8,SPI1_RX,UART1_TX,I2C0_SDA,PWM4_A,SIO,PIO0,PIO1,,USB_VBUS_EN
|
||||
GPIO9,SPI1_CS,UART1_RX,I2C0_SCL,PWM4_B,SIO,PIO0,PIO1,,USB_OVCUR_DET
|
||||
GPIO10,SPI1_SCK,UART1_CTS,I2C1_SDA,PWM5_A,SIO,PIO0,PIO1,,USB_VBUS_DET
|
||||
GPIO11,SPI1_TX,UART1_RTS,I2C1_SCL,PWM5_B,SIO,PIO0,PIO1,,USB_VBUS_EN
|
||||
GPIO12,SPI1_RX,UART0_TX,I2C0_SDA,PWM6_A,SIO,PIO0,PIO1,,USB_OVCUR_DET
|
||||
GPIO13,SPI1_CS,UART0_RX,I2C0_SCL,PWM6_B,SIO,PIO0,PIO1,,USB_VBUS_DET
|
||||
GPIO14,SPI1_SCK,UART0_CTS,I2C1_SDA,PWM7_A,SIO,PIO0,PIO1,,USB_VBUS_EN
|
||||
GPIO15,SPI1_TX,UART0_RTS,I2C1_SCL,PWM7_B,SIO,PIO0,PIO1,,USB_OVCUR_DET
|
||||
GPIO16,SPI0_RX,UART0_TX,I2C0_SDA,PWM0_A,SIO,PIO0,PIO1,,USB_VBUS_DET
|
||||
GPIO17,SPI0_CS,UART0_RX,I2C0_SCL,PWM0_B,SIO,PIO0,PIO1,,USB_VBUS_EN
|
||||
GPIO18,SPI0_SCK,UART0_CTS,I2C1_SDA,PWM1_A,SIO,PIO0,PIO1,,USB_OVCUR_DET
|
||||
GPIO19,SPI0_TX,UART0_RTS,I2C1_SCL,PWM1_B,SIO,PIO0,PIO1,,USB_VBUS_DET
|
||||
GPIO20,SPI0_RX,UART1_TX,I2C0_SDA,PWM2_A,SIO,PIO0,PIO1,GPCK_GPIN0,USB_VBUS_EN
|
||||
GPIO21,SPI0_CS,UART1_RX,I2C0_SCL,PWM2_B,SIO,PIO0,PIO1,GPCK_GPOUT0,USB_OVCUR_DET
|
||||
GPIO22,SPI0_SCK,UART1_CTS,I2C1_SDA,PWM3_A,SIO,PIO0,PIO1,GPCK_GPIN1,USB_VBUS_DET
|
||||
GPIO23,SPI0_TX,UART1_RTS,I2C1_SCL,PWM3_B,SIO,PIO0,PIO1,GPCK_GPOUT1,USB_VBUS_EN
|
||||
GPIO24,SPI1_RX,UART1_TX,I2C0_SDA,PWM4_A,SIO,PIO0,PIO1,GPCK_GPOUT2,USB_OVCUR_DET
|
||||
GPIO25,SPI1_CS,UART1_RX,I2C0_SCL,PWM4_B,SIO,PIO0,PIO1,GPCK_GPOUT3,USB_VBUS_DET
|
||||
GPIO26,SPI1_SCK,UART1_CTS,I2C1_SDA,PWM5_A,SIO,PIO0,PIO1,,USB_VBUS_EN
|
||||
GPIO27,SPI1_TX,UART1_RTS,I2C1_SCL,PWM5_B,SIO,PIO0,PIO1,,USB_OVCUR_DET
|
||||
GPIO28,SPI1_RX,UART0_TX,I2C0_SDA,PWM6_A,SIO,PIO0,PIO1,,USB_VBUS_DET
|
||||
GPIO29,SPI1_CS,UART0_RX,I2C0_SCL,PWM6_B,SIO,PIO0,PIO1,,USB_VBUS_EN
|
||||
|
|
|
@ -0,0 +1,36 @@
|
|||
#include <stdint.h>
|
||||
#include "py/obj.h"
|
||||
#include "py/mphal.h"
|
||||
#include "machine_pin.h"
|
||||
|
||||
#define AF(af_idx, af_fn, af_unit) \
|
||||
{ \
|
||||
.base = { &machine_pin_af_type }, \
|
||||
.name = MP_QSTR_##af_fn, \
|
||||
.idx = (af_idx), \
|
||||
.fn = GPIO_FUNC_##af_fn, \
|
||||
.unit = (af_unit), \
|
||||
}
|
||||
|
||||
#if MICROPY_HW_PIN_EXT_COUNT
|
||||
#define PIN(_id, _name, _is_ext, _af_num, _af_list) \
|
||||
{ \
|
||||
.base = { &machine_pin_type }, \
|
||||
.name = MP_QSTR_##_name, \
|
||||
.id = (uint8_t)(_id), \
|
||||
.is_ext = (_is_ext), \
|
||||
.is_output = false, \
|
||||
.last_output_value = 0, \
|
||||
.af_num = (_af_num), \
|
||||
.af = (_af_list), \
|
||||
}
|
||||
#else
|
||||
#define PIN(_id, _name, _is_ext, _af_num, _af_list) \
|
||||
{ \
|
||||
.base = { &machine_pin_type }, \
|
||||
.name = MP_QSTR_##_name, \
|
||||
.id = (uint8_t)(_id), \
|
||||
.af_num = (_af_num), \
|
||||
.af = (_af_list), \
|
||||
}
|
||||
#endif
|
||||
|
|
@ -58,6 +58,26 @@
|
|||
#define MICROPY_HW_PIN_RESERVED(i) (0)
|
||||
#endif
|
||||
|
||||
MP_DEFINE_CONST_OBJ_TYPE(
|
||||
machine_pin_af_type,
|
||||
MP_QSTR_PinAF,
|
||||
MP_TYPE_FLAG_NONE
|
||||
);
|
||||
|
||||
MP_DEFINE_CONST_OBJ_TYPE(
|
||||
pin_cpu_pins_obj_type,
|
||||
MP_QSTR_cpu,
|
||||
MP_TYPE_FLAG_NONE,
|
||||
locals_dict, &pin_cpu_pins_locals_dict
|
||||
);
|
||||
|
||||
MP_DEFINE_CONST_OBJ_TYPE(
|
||||
pin_board_pins_obj_type,
|
||||
MP_QSTR_board,
|
||||
MP_TYPE_FLAG_NONE,
|
||||
locals_dict, &pin_board_pins_locals_dict
|
||||
);
|
||||
|
||||
typedef struct _machine_pin_irq_obj_t {
|
||||
mp_irq_obj_t base;
|
||||
uint32_t flags;
|
||||
|
|
@ -65,63 +85,7 @@ typedef struct _machine_pin_irq_obj_t {
|
|||
} machine_pin_irq_obj_t;
|
||||
|
||||
STATIC const mp_irq_methods_t machine_pin_irq_methods;
|
||||
|
||||
STATIC const machine_pin_obj_t machine_pin_obj[NUM_BANK0_GPIOS] = {
|
||||
{{&machine_pin_type}, 0},
|
||||
{{&machine_pin_type}, 1},
|
||||
{{&machine_pin_type}, 2},
|
||||
{{&machine_pin_type}, 3},
|
||||
{{&machine_pin_type}, 4},
|
||||
{{&machine_pin_type}, 5},
|
||||
{{&machine_pin_type}, 6},
|
||||
{{&machine_pin_type}, 7},
|
||||
{{&machine_pin_type}, 8},
|
||||
{{&machine_pin_type}, 9},
|
||||
{{&machine_pin_type}, 10},
|
||||
{{&machine_pin_type}, 11},
|
||||
{{&machine_pin_type}, 12},
|
||||
{{&machine_pin_type}, 13},
|
||||
{{&machine_pin_type}, 14},
|
||||
{{&machine_pin_type}, 15},
|
||||
{{&machine_pin_type}, 16},
|
||||
{{&machine_pin_type}, 17},
|
||||
{{&machine_pin_type}, 18},
|
||||
{{&machine_pin_type}, 19},
|
||||
{{&machine_pin_type}, 20},
|
||||
{{&machine_pin_type}, 21},
|
||||
{{&machine_pin_type}, 22},
|
||||
{{&machine_pin_type}, 23},
|
||||
{{&machine_pin_type}, 24},
|
||||
{{&machine_pin_type}, 25},
|
||||
{{&machine_pin_type}, 26},
|
||||
{{&machine_pin_type}, 27},
|
||||
{{&machine_pin_type}, 28},
|
||||
{{&machine_pin_type}, 29},
|
||||
};
|
||||
|
||||
#define LED_PIN_NAME "LED"
|
||||
|
||||
#ifndef MICROPY_HW_PIN_ENABLE_LED_PIN
|
||||
#if defined(MICROPY_HW_PIN_EXT_LED_PIN_NUM) || defined(PICO_DEFAULT_LED_PIN)
|
||||
#define MICROPY_HW_PIN_ENABLE_LED_PIN 1
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if MICROPY_HW_PIN_EXT_COUNT
|
||||
extern machine_pin_obj_t ext_pin_obj[MICROPY_HW_PIN_EXT_COUNT];
|
||||
#endif
|
||||
|
||||
#ifdef MICROPY_HW_PIN_ENABLE_LED_PIN
|
||||
#ifdef MICROPY_HW_PIN_EXT_LED_PIN_NUM
|
||||
STATIC machine_pin_obj_t *led_pin_obj = &ext_pin_obj[MICROPY_HW_PIN_EXT_LED_PIN_NUM];
|
||||
#elif defined(MICROPY_HW_PIN_LED_PIN_NUM)
|
||||
STATIC machine_pin_obj_t *led_pin_obj = &machine_pin_obj[MICROPY_HW_PIN_LED_PIN_NUM];
|
||||
#elif defined(PICO_DEFAULT_LED_PIN)
|
||||
STATIC const machine_pin_obj_t *led_pin_obj = &machine_pin_obj[PICO_DEFAULT_LED_PIN];
|
||||
#else
|
||||
#error MICROPY_HW_PIN_ENABLE_LED_PIN defined but there is no LED pin
|
||||
#endif
|
||||
#endif
|
||||
extern const machine_pin_obj_t *machine_pin_cpu_pins[NUM_BANK0_GPIOS];
|
||||
|
||||
// Mask with "1" indicating that the corresponding pin is in simulated open-drain mode.
|
||||
uint32_t machine_pin_open_drain_mask;
|
||||
|
|
@ -173,6 +137,35 @@ void machine_pin_deinit(void) {
|
|||
irq_remove_handler(IO_IRQ_BANK0, gpio_irq);
|
||||
}
|
||||
|
||||
const machine_pin_obj_t *machine_pin_find_named(const mp_obj_dict_t *named_pins, mp_obj_t name) {
|
||||
const mp_map_t *named_map = &named_pins->map;
|
||||
mp_map_elem_t *named_elem = mp_map_lookup((mp_map_t *)named_map, name, MP_MAP_LOOKUP);
|
||||
if (named_elem != NULL && named_elem->value != NULL) {
|
||||
return MP_OBJ_TO_PTR(named_elem->value);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
const machine_pin_af_obj_t *machine_pin_find_alt(const machine_pin_obj_t *pin, uint8_t fn) {
|
||||
const machine_pin_af_obj_t *af = pin->af;
|
||||
for (mp_uint_t i = 0; i < pin->af_num; i++, af++) {
|
||||
if (af->fn == fn) {
|
||||
return af;
|
||||
}
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
const machine_pin_af_obj_t *machine_pin_find_alt_by_index(const machine_pin_obj_t *pin, mp_uint_t af_idx) {
|
||||
const machine_pin_af_obj_t *af = pin->af;
|
||||
for (mp_uint_t i = 0; i < pin->af_num; i++, af++) {
|
||||
if (af->idx == af_idx) {
|
||||
return af;
|
||||
}
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
STATIC void machine_pin_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
|
||||
machine_pin_obj_t *self = self_in;
|
||||
uint funcsel = GPIO_GET_FUNCSEL(self->id);
|
||||
|
|
@ -189,7 +182,7 @@ STATIC void machine_pin_print(const mp_print_t *print, mp_obj_t self_in, mp_prin
|
|||
} else {
|
||||
mode_qst = MP_QSTR_ALT;
|
||||
}
|
||||
mp_printf(print, "Pin(%u, mode=%q", self->id, mode_qst);
|
||||
mp_printf(print, "Pin(%q, mode=%q", self->name, mode_qst);
|
||||
bool pull_up = false;
|
||||
if (GPIO_IS_PULL_UP(self->id)) {
|
||||
mp_printf(print, ", pull=%q", MP_QSTR_PULL_UP);
|
||||
|
|
@ -203,12 +196,17 @@ STATIC void machine_pin_print(const mp_print_t *print, mp_obj_t self_in, mp_prin
|
|||
}
|
||||
}
|
||||
if (funcsel != GPIO_FUNC_SIO) {
|
||||
mp_printf(print, ", alt=%u", funcsel);
|
||||
const machine_pin_af_obj_t *af = machine_pin_find_alt_by_index(self, funcsel);
|
||||
if (af == NULL) {
|
||||
mp_printf(print, ", alt=%u", funcsel);
|
||||
} else {
|
||||
mp_printf(print, ", alt=%q", af->name);
|
||||
}
|
||||
}
|
||||
} else {
|
||||
#if MICROPY_HW_PIN_EXT_COUNT
|
||||
mode_qst = self->is_output ? MP_QSTR_OUT : MP_QSTR_IN;
|
||||
mp_printf(print, "Pin(%s%u, mode=%q", MICROPY_HW_PIN_EXT_PREFIX, self->id, mode_qst);
|
||||
mode_qst = (self->is_output) ? MP_QSTR_OUT : MP_QSTR_IN;
|
||||
mp_printf(print, "Pin(%q, mode=%q", self->name, mode_qst);
|
||||
#endif
|
||||
}
|
||||
mp_printf(print, ")");
|
||||
|
|
@ -231,11 +229,11 @@ STATIC mp_obj_t machine_pin_obj_init_helper(const machine_pin_obj_t *self, size_
|
|||
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
|
||||
|
||||
if (is_ext_pin(self) && args[ARG_pull].u_obj != mp_const_none) {
|
||||
mp_raise_ValueError("Pulls are not supported for external pins.");
|
||||
mp_raise_ValueError("pulls are not supported for external pins");
|
||||
}
|
||||
|
||||
if (is_ext_pin(self) && args[ARG_alt].u_int != GPIO_FUNC_SIO) {
|
||||
mp_raise_ValueError("Alternate functions are not supported for external pins.");
|
||||
mp_raise_ValueError("alternate functions are not supported for external pins");
|
||||
}
|
||||
|
||||
int value = -1;
|
||||
|
|
@ -264,7 +262,11 @@ STATIC mp_obj_t machine_pin_obj_init_helper(const machine_pin_obj_t *self, size_
|
|||
mp_hal_pin_open_drain(self->id);
|
||||
} else {
|
||||
// Configure alternate function.
|
||||
gpio_set_function(self->id, args[ARG_alt].u_int);
|
||||
mp_uint_t af = args[ARG_alt].u_int;
|
||||
if (machine_pin_find_alt(self, af) == NULL) {
|
||||
mp_raise_msg_varg(&mp_type_ValueError, MP_ERROR_TEXT("invalid pin af: %d"), af);
|
||||
}
|
||||
gpio_set_function(self->id, af);
|
||||
machine_pin_open_drain_mask &= ~(1 << self->id);
|
||||
}
|
||||
}
|
||||
|
|
@ -283,35 +285,29 @@ STATIC mp_obj_t machine_pin_obj_init_helper(const machine_pin_obj_t *self, size_
|
|||
// constructor(id, ...)
|
||||
mp_obj_t mp_pin_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
|
||||
mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
|
||||
|
||||
const machine_pin_obj_t *self = NULL;
|
||||
|
||||
if (mp_obj_is_str(args[0])) {
|
||||
const char *name = mp_obj_str_get_str(args[0]);
|
||||
#if MICROPY_HW_PIN_ENABLE_LED_PIN
|
||||
if (!strcmp(name, LED_PIN_NAME)) {
|
||||
self = led_pin_obj;
|
||||
}
|
||||
#endif
|
||||
#if MICROPY_HW_PIN_EXT_COUNT
|
||||
static_assert(MICROPY_HW_PIN_EXT_COUNT < 10, ""); // makes parsing name easy!
|
||||
if (!self && !strncmp(name, MICROPY_HW_PIN_EXT_PREFIX, strlen(MICROPY_HW_PIN_EXT_PREFIX)) && strlen(name) == strlen(MICROPY_HW_PIN_EXT_PREFIX) + 1) {
|
||||
int num = name[strlen(MICROPY_HW_PIN_EXT_PREFIX)] - '0';
|
||||
if (num < MICROPY_HW_PIN_EXT_COUNT) {
|
||||
self = &ext_pin_obj[num];
|
||||
}
|
||||
}
|
||||
#endif
|
||||
// Try to find the pin in the board pins first.
|
||||
self = machine_pin_find_named(&pin_board_pins_locals_dict, args[0]);
|
||||
if (!self) {
|
||||
mp_raise_msg_varg(&mp_type_ValueError, MP_ERROR_TEXT("Unknown named pin \"%s\""), name);
|
||||
// If not found, try to find the pin in the cpu pins which include
|
||||
// CPU and and externally controlled pins (if any).
|
||||
self = machine_pin_find_named(&pin_cpu_pins_locals_dict, args[0]);
|
||||
}
|
||||
if (!self) {
|
||||
mp_raise_msg_varg(&mp_type_ValueError, MP_ERROR_TEXT("unknown named pin \"%s\""), name);
|
||||
}
|
||||
} else if (mp_obj_is_int(args[0])) {
|
||||
// get the wanted pin object
|
||||
int wanted_pin = mp_obj_get_int(args[0]);
|
||||
if (0 <= wanted_pin && wanted_pin < MP_ARRAY_SIZE(machine_pin_cpu_pins)) {
|
||||
self = machine_pin_cpu_pins[wanted_pin];
|
||||
}
|
||||
}
|
||||
if (!self) {
|
||||
// get the wanted pin object
|
||||
int wanted_pin = mp_obj_get_int(args[0]);
|
||||
if (!(0 <= wanted_pin && wanted_pin < MP_ARRAY_SIZE(machine_pin_obj))) {
|
||||
mp_raise_ValueError("invalid pin");
|
||||
}
|
||||
self = &machine_pin_obj[wanted_pin];
|
||||
mp_raise_ValueError("invalid pin");
|
||||
}
|
||||
|
||||
if (n_args > 1 || n_kw > 0) {
|
||||
|
|
@ -427,7 +423,7 @@ STATIC machine_pin_irq_obj_t *machine_pin_get_irq(mp_hal_pin_obj_t pin) {
|
|||
irq = m_new_obj(machine_pin_irq_obj_t);
|
||||
irq->base.base.type = &mp_irq_type;
|
||||
irq->base.methods = (mp_irq_methods_t *)&machine_pin_irq_methods;
|
||||
irq->base.parent = MP_OBJ_FROM_PTR(&machine_pin_obj[pin]);
|
||||
irq->base.parent = MP_OBJ_FROM_PTR(&machine_pin_cpu_pins[pin]);
|
||||
irq->base.handler = mp_const_none;
|
||||
irq->base.ishard = false;
|
||||
MP_STATE_PORT(machine_pin_irq_obj[pin]) = irq;
|
||||
|
|
@ -493,6 +489,10 @@ STATIC const mp_rom_map_elem_t machine_pin_locals_dict_table[] = {
|
|||
{ MP_ROM_QSTR(MP_QSTR_toggle), MP_ROM_PTR(&machine_pin_toggle_obj) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_irq), MP_ROM_PTR(&machine_pin_irq_obj) },
|
||||
|
||||
// class attributes
|
||||
{ MP_ROM_QSTR(MP_QSTR_board), MP_ROM_PTR(&pin_board_pins_obj_type) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_cpu), MP_ROM_PTR(&pin_cpu_pins_obj_type) },
|
||||
|
||||
// class constants
|
||||
{ MP_ROM_QSTR(MP_QSTR_IN), MP_ROM_INT(MACHINE_PIN_MODE_IN) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_OUT), MP_ROM_INT(MACHINE_PIN_MODE_OUT) },
|
||||
|
|
@ -502,6 +502,17 @@ STATIC const mp_rom_map_elem_t machine_pin_locals_dict_table[] = {
|
|||
{ MP_ROM_QSTR(MP_QSTR_PULL_DOWN), MP_ROM_INT(GPIO_PULL_DOWN) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_IRQ_RISING), MP_ROM_INT(GPIO_IRQ_EDGE_RISE) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_IRQ_FALLING), MP_ROM_INT(GPIO_IRQ_EDGE_FALL) },
|
||||
|
||||
// Pins alternate functions
|
||||
{ MP_ROM_QSTR(MP_QSTR_ALT_SPI), MP_ROM_INT(GPIO_FUNC_SPI) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_ALT_UART), MP_ROM_INT(GPIO_FUNC_UART) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_ALT_I2C), MP_ROM_INT(GPIO_FUNC_I2C) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_ALT_PWM), MP_ROM_INT(GPIO_FUNC_PWM) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_ALT_SIO), MP_ROM_INT(GPIO_FUNC_SIO) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_ALT_PIO0), MP_ROM_INT(GPIO_FUNC_PIO0) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_ALT_PIO1), MP_ROM_INT(GPIO_FUNC_PIO1) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_ALT_GPCK), MP_ROM_INT(GPIO_FUNC_GPCK) },
|
||||
{ MP_ROM_QSTR(MP_QSTR_ALT_USB), MP_ROM_INT(GPIO_FUNC_USB) },
|
||||
};
|
||||
STATIC MP_DEFINE_CONST_DICT(machine_pin_locals_dict, machine_pin_locals_dict_table);
|
||||
|
||||
|
|
|
|||
|
|
@ -37,19 +37,46 @@ enum {
|
|||
MACHINE_PIN_MODE_ALT = 3
|
||||
};
|
||||
|
||||
typedef struct _machine_pin_af_obj_t {
|
||||
mp_obj_base_t base;
|
||||
qstr name;
|
||||
uint8_t idx : 4;
|
||||
uint8_t fn : 4;
|
||||
uint8_t unit : 8;
|
||||
} machine_pin_af_obj_t;
|
||||
|
||||
typedef struct _machine_pin_obj_t {
|
||||
mp_obj_base_t base;
|
||||
qstr name;
|
||||
uint8_t id : 5;
|
||||
#if MICROPY_HW_PIN_EXT_COUNT
|
||||
uint8_t is_ext : 1;
|
||||
uint8_t is_output : 1;
|
||||
uint8_t last_output_value : 1;
|
||||
#endif
|
||||
uint8_t af_num : 4;
|
||||
const machine_pin_af_obj_t *af;
|
||||
} machine_pin_obj_t;
|
||||
|
||||
extern const mp_obj_type_t machine_pin_type;
|
||||
extern const mp_obj_type_t machine_pin_af_type;
|
||||
|
||||
// Include all of the individual pin objects
|
||||
#include "genhdr/pins.h"
|
||||
|
||||
extern const mp_obj_type_t pin_cpu_pins_obj_type;
|
||||
extern const mp_obj_dict_t pin_cpu_pins_locals_dict;
|
||||
|
||||
extern const mp_obj_type_t pin_board_pins_obj_type;
|
||||
extern const mp_obj_dict_t pin_board_pins_locals_dict;
|
||||
|
||||
void machine_pin_ext_init(void);
|
||||
void machine_pin_ext_set(machine_pin_obj_t *self, bool value);
|
||||
bool machine_pin_ext_get(machine_pin_obj_t *self);
|
||||
void machine_pin_ext_config(machine_pin_obj_t *self, int mode, int value);
|
||||
|
||||
const machine_pin_obj_t *machine_pin_find_named(const mp_obj_dict_t *named_pins, mp_obj_t name);
|
||||
const machine_pin_af_obj_t *machine_pin_find_alt(const machine_pin_obj_t *pin, uint8_t fn);
|
||||
const machine_pin_af_obj_t *machine_pin_find_alt_by_index(const machine_pin_obj_t *pin, mp_uint_t af_idx);
|
||||
|
||||
#endif // MICROPY_INCLUDED_RP2_MACHINE_PIN_H
|
||||
|
|
|
|||
|
|
@ -36,14 +36,7 @@
|
|||
#include "machine_pin.h"
|
||||
#include "lib/cyw43-driver/src/cyw43.h"
|
||||
|
||||
machine_pin_obj_t ext_pin_obj[MICROPY_HW_PIN_EXT_COUNT];
|
||||
|
||||
void machine_pin_ext_init(void) {
|
||||
for (uint i = 0; i < count_of(ext_pin_obj); i++) {
|
||||
ext_pin_obj[i].id = i;
|
||||
ext_pin_obj[i].base.type = &machine_pin_type;
|
||||
ext_pin_obj[i].is_ext = true;
|
||||
}
|
||||
}
|
||||
|
||||
void machine_pin_ext_set(machine_pin_obj_t *self, bool value) {
|
||||
|
|
|
|||
Ładowanie…
Reference in New Issue