c4db8b87e2
Restructures the STM port of Circuitpython to be more generic about the STM32 chip lines to support the F7 and H7 series of chips. Adds the new Packages directory to organize different chip layouts between lines. Makes general changes to the Makefile to condense board-level flags to the minimum and support the new chip series. Adds the new chip line to the Peripherals directory, along with new python tools used to generate peripheral text automatically in the tools/ directory.
134 lines
4.1 KiB
C
134 lines
4.1 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 Scott Shawcroft for Adafruit Industries
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* Copyright (c) 2019 Lucian Copeland for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "shared-bindings/microcontroller/Pin.h"
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#include "shared-bindings/digitalio/DigitalInOut.h"
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#include "supervisor/shared/rgb_led_status.h"
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#include "py/mphal.h"
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#include "pins.h"
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#ifdef MICROPY_HW_NEOPIXEL
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bool neopixel_in_use;
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#endif
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#if defined(LQFP144)
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#define GPIO_PORT_COUNT 7
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GPIO_TypeDef * ports[GPIO_PORT_COUNT] = {GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, GPIOF, GPIOG};
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#elif defined(LQFP100_f4) || (LQFP100_x7)
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#define GPIO_PORT_COUNT 5
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GPIO_TypeDef * ports[GPIO_PORT_COUNT] = {GPIOA, GPIOB, GPIOC, GPIOD, GPIOE};
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#elif defined(LQFP64)
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#define GPIO_PORT_COUNT 3
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GPIO_TypeDef * ports[GPIO_PORT_COUNT] = {GPIOA, GPIOB, GPIOC};
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#elif defined(UFQFPN48)
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#define GPIO_PORT_COUNT 3
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GPIO_TypeDef * ports[GPIO_PORT_COUNT] = {GPIOA, GPIOB, GPIOC};
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#endif
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STATIC uint16_t claimed_pins[GPIO_PORT_COUNT];
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STATIC uint16_t never_reset_pins[GPIO_PORT_COUNT];
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void reset_all_pins(void) {
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// Reset claimed pins
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for (uint8_t i = 0; i < GPIO_PORT_COUNT; i++) {
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claimed_pins[i] = never_reset_pins[i];
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}
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for (uint8_t i = 0; i < GPIO_PORT_COUNT; i++) {
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HAL_GPIO_DeInit(ports[i], ~never_reset_pins[i]);
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}
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#ifdef MICROPY_HW_NEOPIXEL
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neopixel_in_use = false;
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#endif
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}
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// Mark pin as free and return it to a quiescent state.
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void reset_pin_number(uint8_t pin_port, uint8_t pin_number) {
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if (pin_port == 0x0F) {
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return;
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}
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// Clear claimed bit & reset
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claimed_pins[pin_port] &= ~(1<<pin_number);
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never_reset_pins[pin_port] &= ~(1<<pin_number);
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HAL_GPIO_DeInit(ports[pin_port], 1<<pin_number);
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#ifdef MICROPY_HW_NEOPIXEL
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if (pin_port == MICROPY_HW_NEOPIXEL->port && pin_number == MICROPY_HW_NEOPIXEL->number) {
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neopixel_in_use = false;
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rgb_led_status_init();
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return;
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}
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#endif
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}
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void never_reset_pin_number(uint8_t pin_port, uint8_t pin_number) {
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never_reset_pins[pin_port] |= 1<<pin_number;
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}
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void common_hal_never_reset_pin(const mcu_pin_obj_t* pin) {
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never_reset_pin_number(pin->port, pin->number);
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}
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void common_hal_reset_pin(const mcu_pin_obj_t* pin) {
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reset_pin_number(pin->port, pin->number);
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}
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void claim_pin(const mcu_pin_obj_t* pin) {
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// Set bit in claimed_pins bitmask.
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claimed_pins[pin->port] |= 1<<pin->number;
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#ifdef MICROPY_HW_NEOPIXEL
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if (pin == MICROPY_HW_NEOPIXEL) {
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neopixel_in_use = true;
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}
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#endif
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}
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bool pin_number_is_free(uint8_t pin_port, uint8_t pin_number) {
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return !(claimed_pins[pin_port] & 1<<pin_number);
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}
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bool common_hal_mcu_pin_is_free(const mcu_pin_obj_t *pin) {
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#ifdef MICROPY_HW_NEOPIXEL
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if (pin == MICROPY_HW_NEOPIXEL) {
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return !neopixel_in_use;
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}
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#endif
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return pin_number_is_free(pin->port, pin->number);
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}
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GPIO_TypeDef * pin_port(uint8_t pin_port) {
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return ports[pin_port];
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}
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uint16_t pin_mask(uint8_t pin_number) {
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return 1<<pin_number;
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}
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