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/************************************************************************/
/* */
/* - armen a tiny operating system - */
/* */
/* File: armen.h */
/* Description: armen api */
/* Version: 1.0 */
/* Author: Otto Mattik */
/* */
/* (C)Copyright Otto Mattik 2014-2021. */
/* */
/* This file is a part of 'armen' (a tiny operating system). */
/* 'armen" is distributed under the CeCILL-V2.1 licence. For more */
/* details about this licence, please visit the website cecill.info */
/* */
/************************************************************************/
#ifndef _ARMEN_H_
#define _ARMEN_H_
#include <stdint.h>
#define FALSE 0
#define TRUE 1
/*
* events
*/
#define EVENT_UART0 0x0001
#define EVENT_UART1 0x0002
#define EVENT_UART2 0x0004
#define EVENT_UART3 0x0008
#define EVENT_TIMER1 0x0010
#define EVENT_TIMER2 0x0020
#define EVENT_INT0 0x0040
#define EVENT_INT1 0x0080
#define EVENT_INT2 0x0100
#define EVENT_PCINT0 0x0200
#define EVENT_PCINT1 0x0400
#define EVENT_PCINT2 0x0800
#define EVENT_USER 0x2000
#define EVENT_PCINT EVENT_PCINT0
/*
* gpio
*/
#define GPIO_INPUT 0
#define GPIO_OUTPUT 1
#define GPIO_LOW 0
#define GPIO_HIGH 1
#define GPIO0 0
#define GPIO1 1
#define GPIO2 2
#define GPIO3 3
#define GPIO4 4
#define GPIO5 5
#define GPIO6 6
#define GPIO7 7
#define GPIO8 8
#define GPIO9 9
#define GPIO10 10
#define GPIO11 11
#define GPIO12 12
#define GPIO13 13
#define GPIO14 14
#define GPIO15 15
#define GPIO16 16
#define GPIO17 17
#define GPIO18 18
#define GPIO19 19
#define GPIO20 20
#define GPIO21 21
#define GPIO22 22
#define GPIO23 23
/*
* uart features
*/
#if defined(UART) && (UART != 0)
#define B1200 0
#define B2400 1
#define B4800 2
#define B9600 3
#define B19200 4
#define B38400 5
#define B57600 6
#define B115200 7
#define BAUDRATE 7
#define ECHOO 8 /* echo on output */
#endif
/*
* analog conversion
*/
#ifdef USE_ADC
#define ADC_REF_VCC 0
#define ADC_REF_EXT 1
#define ADC_REF_INT1V1 2
#define ADC_REF_INT2V2 3
#define ADC_REF_INT2V56 3
#define ADC_REF_INT4V096 4
#endif
/*
* pulse witdth modulation
*/
#ifdef USE_PWM
#define PWM_SCALE_1 1
#define PWM_SCALE_8 2
#define PWM_SCALE_64 3
#define PWM_SCALE_256 4
#define PWM_SCALE_1024 5
#endif
/*
* pin change interruptions
*/
#ifdef USE_PCINT
#define INT_LOW 0
#define INT_CHANGE 1
#define INT_RISING 2
#define INT_FALLING 3
#define INT_DISABLE 4
#endif
typedef int8_t thread_t;
typedef uint32_t sem_t;
#ifdef USE_BIG_TIMER
typedef uint32_t timer_t;
#else
typedef uint16_t timer_t;
#endif
#ifdef __cplusplus
extern "C" {
#endif
extern void armen_start( void );
extern uint16_t wait_event( uint16_t events );
extern void send_user_event( void );
extern timer_t get_timer( uint8_t timer );
extern int8_t set_timer( uint8_t timer, timer_t msecs );
extern void sleep( timer_t msecs );
extern void delay( uint16_t usecs );
extern uint32_t get_time( void );
extern thread_t thread_self( void );
extern thread_t thread_create( void* (*start)(void*), void* arg );
extern void thread_exit( void* retval );
#ifdef USE_FULL_THREAD
extern void thread_cancel( thread_t thread );
extern void thread_join( thread_t thread, void** retval );
extern uint8_t thread_nice( thread_t thread, uint8_t priority );
#endif
extern uint8_t test_and_set( void* lock );
#ifdef USE_SEM
extern void sem_init( sem_t* sem, uint8_t value );
extern void sem_wait( sem_t* sem );
extern void sem_post( sem_t* sem );
#endif
extern void gpio_pin_mode( uint8_t gpio, uint8_t mode, ... );
extern int8_t gpio_pin_get( uint8_t gpio );
extern void gpio_pin_set( uint8_t gpio, uint8_t value );
#ifdef USE_ADC
extern void gpio_adc_ref( uint8_t ref );
extern int16_t gpio_adc_get( uint8_t gpio );
#endif
#ifdef USE_PWM
extern void gpio_pwm_freq( uint8_t scale );
extern void gpio_pwm_set( uint8_t gpio, uint8_t percent );
#endif
#ifdef USE_PCINT
extern void gpio_int_enable( uint8_t interrupt, uint8_t mode );
extern void gpio_pcint_enable( uint8_t gpio, uint8_t enable );
#endif
#if defined(UART) && (UART != 0)
extern int8_t uart_open( uint8_t device, uint8_t config );
extern int8_t uart_close( uint8_t device );
extern int8_t uart_read( uint8_t device, uint8_t* byte );
extern int8_t uart_write( uint8_t device, uint8_t byte );
extern char uart_getchar( uint8_t device );
extern void uart_putchar( uint8_t device, char c );
extern void uart_putstr( uint8_t device, char* s );
#endif
#ifdef __cplusplus
}
#endif
#endif
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