Remove esp8266 support in favor of ESP8266 RTOS SDK

  - build

  - test

build_esp8266:

  stage: build

  before_script:

  - export TOOLCHAIN_BASE=/opt/xtensa-lx106-elf/bin

  - export SDK_BASE=/opt/xtensa-lx106-elf/xtensa-lx106-elf/sysroot/usr

  script:

  - curl -s https://ess.cs.uos.de/static/.gitlab-ci/xtensa-lx106-elf.tar.xz | tar -C /opt -xJf -

  - mkdir -p build

  - sh -x tests/build-esp8266

build_posix:

  stage: build

  script:

/*

 * Copyright 2020 Daniel Friesel

 *

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

 */

#ifndef COUNTER_H

#define COUNTER_H

extern "C" {

#include "osapi.h"

#include "user_interface.h"

}

#include "c_types.h"

typedef uint32_t counter_value_t;

typedef uint32_t counter_overflow_t;

class Counter {

	private:

		Counter(const Counter &copy);

		uint32_t start_cycles;

	public:

		uint32_t value;

		uint32_t overflow;

		Counter() : start_cycles(0), value(0), overflow(0) {}

		inline void start() {

			asm volatile ("esync; rsr %0,ccount":"=a" (start_cycles));

		}

		inline void stop() {

			uint32_t stop_cycles;

			asm volatile ("esync; rsr %0,ccount":"=a" (stop_cycles));

			if (stop_cycles > start_cycles) {

				value = stop_cycles - start_cycles;

			} else {

				overflow = 1;

			}

		}

};

extern Counter counter;

#endif

/*

 * Copyright 2020 Daniel Friesel

 *

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

 */

#ifndef GPIO_H

#define GPIO_H

class GPIO {

	private:

		GPIO(const GPIO &copy);

	public:

		GPIO () {}

		enum Pin : unsigned char {

			d3 = 0, tx, d4, rx, d2, d1,

			d6 = 12, d7, d5, d8,

			d0 = 16

		};

		void setup();

		void led_on(unsigned char id = 0);

		void led_off(unsigned char id = 0);

		void led_toggle(unsigned char id = 0);

		void input(unsigned char const pin);

		void input(unsigned char const pin, bool pullup);

		void output(unsigned char const pin);

		unsigned char read(unsigned char const pin);

		void write(unsigned char const pin, unsigned char value);

};

extern GPIO gpio;

#endif

/*

 * Copyright 2020 Daniel Friesel

 *

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

 */

#ifndef STANDARDINPUT_H

#define STANDARDINPUT_H

class StandardInput {

	private:

		StandardInput(const StandardInput &copy);

		char buffer[8];

		unsigned char write_pos, read_pos;

	public:

		StandardInput() : write_pos(0), read_pos(0) {}

		void setup();

		bool hasKey();

		char getKey();

		inline void addKey(char key) {

			buffer[write_pos++] = key;

			write_pos %= 8;

		}

};

extern StandardInput kin;

#endif

/*

 * Copyright 2020 Daniel Friesel

 *

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

 */

#ifndef STANDARDOUTPUT_H

#define STANDARDOUTPUT_H

class StandardOutput {

	private:

		StandardOutput(const StandardOutput &copy);

		char digit_buffer[sizeof(long long) * 8];

		unsigned char base;

	public:

		StandardOutput() : base(10) {};

		void setup();

		void put(char c);

		void write(const char *s);

		void flush() {}

		void printf_uint8(unsigned char num);

		void printf_float(float num);

		StandardOutput & operator<<(char c);

		StandardOutput & operator<<(unsigned char c);

		StandardOutput & operator<<(unsigned short number);

		StandardOutput & operator<<(short number);

		StandardOutput & operator<<(unsigned int number);

		StandardOutput & operator<<(int number);

		StandardOutput & operator<<(unsigned long number);

		StandardOutput & operator<<(long number);

		StandardOutput & operator<<(unsigned long long number);

		StandardOutput & operator<<(long long number);

		StandardOutput & operator<<(float number);

		StandardOutput & operator<<(double number);

		StandardOutput & operator<<(void *pointer);

		StandardOutput & operator<<(const char *text);

		StandardOutput & operator<<(StandardOutput & (*fun) (StandardOutput &));

		void setBase(unsigned char b);

};

StandardOutput & endl(StandardOutput & os);

StandardOutput & bin(StandardOutput & os);

StandardOutput & oct(StandardOutput & os);

StandardOutput & dec(StandardOutput & os);

StandardOutput & hex(StandardOutput & os);

StandardOutput & flush(StandardOutput & os);

StandardOutput & term(StandardOutput & os);

extern StandardOutput kout;

#endif