Add preliminary STM32F746ZG-Nucleo support

/*

 * Copyright 2024 Birte Kristina Friesel

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#ifndef COUNTER_H

#define COUNTER_H

#include <libopencm3/stm32/timer.h>

#include "arch.h"

typedef uint32_t counter_value_t;

typedef uint32_t counter_overflow_t;

class Counter {

	private:

		Counter(const Counter &copy);

	public:

		counter_value_t value;

		volatile counter_overflow_t overflow;

		Counter() : overflow(0) {}

		inline void start() {

			overflow = 0;

			timer_set_counter(TIM2, 0);

			timer_enable_counter(TIM2);

		}

		inline void stop() {

			timer_disable_counter(TIM2);

			value = timer_get_counter(TIM2);

		}

};

extern Counter counter;

#endif

/*

 * Copyright 2024 Birte Kristina Friesel

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#ifndef GPIO_H

#define GPIO_H

#include <libopencm3/stm32/rcc.h>

#include <libopencm3/stm32/gpio.h>

class GPIO {

	private:

		GPIO(const GPIO &copy);

	public:

		GPIO () {}

		enum Pin : unsigned char {

			pa0 = 0, pa1, pa2, pa3, pa4, pa5, pa6, pa7,

			pa8, pa9, pa10, pa11, pa12, pa13, pa14, pa15,

			pb0, pb1, pb2, pb3, pb4, pb5, pb6, pb7,

			pb8, pb9, pb10, pb11, pb12, pb13, pb14, pb15,

			pc0, pc1, pc2, pc3, pc4, pc5, pc6, pc7,

			pc8, pc9, pc10, pc11, pc12, pc13, pc14, pc15,

			pd0, pd1, pd2, pd3, pd4, pd5, pd6, pd7,

			pd8, pd9, pd10, pd11, pd12, pd13, pd14, pd15,

			pe0, pe1, pe2, pe3, pe4, pe5, pe6, pe7,

			pe8, pe9, pe10, pe11, pe12, pe13, pe14, pe15,

			pf0, pf1, pf2, pf3, pf4, pf5, pf6, pf7,

			pf8, pf9, pf10, pf11, pf12, pf13, pf14, pf15,

			pg0, pg1, pg2, pg3, pg4, pg5, pg6, pg7,

			pg8, pg9, pg10, pg11, pg12, pg13, pg14, pg15,

			ph0, ph1, ph2, ph3, ph4, ph5, ph6, ph7,

			ph8, ph9, ph10, ph11, ph12, ph13, ph14, ph15,

			PIN_INVALID

		};

		inline void setup() {

			rcc_periph_clock_enable(RCC_GPIOA);

			rcc_periph_clock_enable(RCC_GPIOB);

			rcc_periph_clock_enable(RCC_GPIOC);

			rcc_periph_clock_enable(RCC_GPIOD);

			// Set LEDs as output

			gpio_mode_setup(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO0);

			gpio_mode_setup(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO7);

			gpio_mode_setup(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO14);

		}

		inline void led_on(unsigned char id = 0) {

			if (id == 2) {

				gpio_set(GPIOB, GPIO0);

			} else if (id == 1) {

				gpio_set(GPIOB, GPIO7);

			} else {

				gpio_set(GPIOB, GPIO14);

			}

		}

		inline void led_off(unsigned char id = 0) {

			if (id == 2) {

				gpio_clear(GPIOB, GPIO0);

			} else if (id == 1) {

				gpio_clear(GPIOB, GPIO7);

			} else {

				gpio_clear(GPIOB, GPIO14);

			}

		}

		inline void led_toggle(unsigned char id = 0) {

			if (id == 2) {

				gpio_toggle(GPIOB, GPIO0);

			} else if (id == 1) {

				gpio_toggle(GPIOB, GPIO7);

			} else {

				gpio_toggle(GPIOB, GPIO14);

			}

		}

		inline void input(unsigned char const pin) {

			if (pin < pb0) {

				gpio_mode_setup(GPIOA, GPIO_MODE_INPUT, GPIO_PUPD_NONE, 1 << pin);

			} else if (pin < pc0) {

				gpio_mode_setup(GPIOB, GPIO_MODE_INPUT, GPIO_PUPD_NONE, 1 << (pin - pb0));

			} else if (pin < PIN_INVALID) {

				gpio_mode_setup(GPIOC, GPIO_MODE_INPUT, GPIO_PUPD_NONE, 1 << (pin - pc0));

			}

		}

		inline void input(unsigned char const pin, unsigned char const pull) {

		}

		inline void output(unsigned char const pin) {

			if (pin < pb0) {

				gpio_mode_setup(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, 1 << pin);

			} else if (pin < pc0) {

				gpio_mode_setup(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, 1 << (pin - pb0));

			} else if (pin < PIN_INVALID) {

				gpio_mode_setup(GPIOC, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, 1 << (pin - pc0));

			}

		}

		/*

		inline void output(unsigned char const pin, unsigned char const value) {

		}*/

		inline unsigned int read(unsigned char const pin) {

			if (pin < pb0) {

				return gpio_get(GPIOA, 1 << pin);

			} else if (pin < pc0) {

				return gpio_get(GPIOB, 1 << (pin-pb0));

			} else if (pin < PIN_INVALID) {

				return gpio_get(GPIOC, 1 << (pin-pc0));

			}

		}

		inline void write(unsigned char const pin, unsigned char value) {

			if (pin < pb0) {

				if (value) {

					gpio_port_write(GPIOA, gpio_port_read(GPIOA) | (1 << pin));

				} else {

					gpio_port_write(GPIOA, gpio_port_read(GPIOA) & ~(1 << pin));

				}

			} else if (pin < pc0) {

				if (value) {

					gpio_port_write(GPIOB, gpio_port_read(GPIOB) | (1 << (pin-pb0)));

				} else {

					gpio_port_write(GPIOB, gpio_port_read(GPIOB) & ~(1 << (pin-pb0)));

				}

			} else if (pin < PIN_INVALID) {

				if (value) {

					gpio_port_write(GPIOC, gpio_port_read(GPIOC) | (1 << (pin-pc0)));

				} else {

					gpio_port_write(GPIOC, gpio_port_read(GPIOC) & ~(1 << (pin-pc0)));

				}

			}

		}

};

extern GPIO gpio;

#endif

/*

 * Copyright 2024 Birte Kristina Friesel

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#ifndef STANDARDOUTPUT_H

#define STANDARDOUTPUT_H

#include "object/outputstream.h"

class StandardOutput : public OutputStream {

	private:

		StandardOutput(const StandardOutput &copy);

	public:

		StandardOutput () {}

		void setup();

		virtual void put(char c) override;

};

extern StandardOutput kout;

#endif

/*

 * Copyright 2024 Birte Kristina Friesel

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#ifndef UPTIME_H

#define UPTIME_H

#include <stdint.h>

class Uptime {

	private:

		Uptime(const Uptime &copy);

#ifdef TIMER_S

		uint32_t seconds;

#endif

	public:

#ifdef TIMER_S

		Uptime () : seconds(0) {}

#else

		Uptime () {}

#endif

#ifdef TIMER_S

		inline uint32_t get_s() { return seconds; }

		inline void tick_s() { seconds++; }

#endif

};

extern Uptime uptime;

#endif

# Copyright 2024 Birte Kristina Friesel

#

# SPDX-License-Identifier: CC0-1.0

config arch_stm32f746zg_nucleo_driver_counter

bool "Cycle Counter"

select meta_driver_counter

config arch_stm32f746zg_nucleo_driver_uptime

bool "Uptime Counter"

select meta_driver_uptime