kopia lustrzana https://github.com/micropython/micropython
68 wiersze
2.3 KiB
Python
Executable File
68 wiersze
2.3 KiB
Python
Executable File
#!/usr/bin/env python
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import os
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import sys
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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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# Pins start at zero, and the highest pin index on any ESP32* chip is 48.
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NUM_GPIOS = 49
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class Esp32Pin(boardgen.Pin):
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# Required by NumericPinGenerator.
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def index(self):
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return int(self._cpu_pin_name[4:])
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# The IDF provides `GPIO_NUM_x = x` as an enum.
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def index_name(self):
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return "GPIO_NUM_{:d}".format(self.index())
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# Emit the combined struct which contains both the pin and irq instances.
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def definition(self):
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return "{ .base = { .type = &machine_pin_type }, .irq = { .base = { .type = &machine_pin_irq_type } } }"
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# This script isn't family-aware, so we always emit the maximum number of
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# pins and rely on the `MICROPY_HW_ENABLE_GPIOn` macros defined in
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# machine_pin.h to figure out which ones are actually available.
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def enable_macro(self):
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return "MICROPY_HW_ENABLE_{}".format(self._cpu_pin_name)
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# ESP32 cpu names must be "GPIOn".
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@staticmethod
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def validate_cpu_pin_name(cpu_pin_name):
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boardgen.Pin.validate_cpu_pin_name(cpu_pin_name)
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if not cpu_pin_name.startswith("GPIO") or not cpu_pin_name[4:].isnumeric():
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raise boardgen.PinGeneratorError(
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"Invalid cpu pin name '{}', must be 'GPIOn'".format(cpu_pin_name)
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)
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if not (0 <= int(cpu_pin_name[4:]) < NUM_GPIOS):
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raise boardgen.PinGeneratorError("Unknown cpu pin '{}'".format(cpu_pin_name))
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class Esp32PinGenerator(boardgen.NumericPinGenerator):
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def __init__(self):
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# Use custom pin type above.
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super().__init__(pin_type=Esp32Pin)
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# Pre-define the pins (i.e. don't require them to be listed in pins.csv).
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for i in range(NUM_GPIOS):
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self.add_cpu_pin("GPIO{}".format(i))
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# Only use pre-defined cpu pins (do not let board.csv create them).
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def find_pin_by_cpu_pin_name(self, cpu_pin_name, create=True):
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return super().find_pin_by_cpu_pin_name(cpu_pin_name, create=False)
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# This is provided by the IDF and is one more than the highest available
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# GPIO num.
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def cpu_table_size(self):
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return "GPIO_NUM_MAX"
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if __name__ == "__main__":
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Esp32PinGenerator().main()
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