LCOM1920-T02G10

#include <lcom/lcf.h>

#include <lcom/lab2.h>

#include <stdbool.h>

#include <stdint.h>

#include "i8254.h"

//#include "timer.c"

extern uint32_t cont;

int main(int argc, char *argv[]) {

  // sets the language of LCF messages (can be either EN-US or PT-PT)

  lcf_set_language("EN-US");

  // enables to log function invocations that are being "wrapped" by LCF

  // [comment this out if you don't want/need it]

  lcf_trace_calls("/home/lcom/labs/lab2/trace.txt");

  // enables to save the output of printf function calls on a file

  // [comment this out if you don't want/need it]

  lcf_log_output("/home/lcom/labs/lab2/output.txt");

  // handles control over to LCF

  // [LCF handles command line arguments and invokes the right function]

  if (lcf_start(argc, argv))

    return 1;

  // LCF clean up tasks

  // [must be the last statement before return]

  lcf_cleanup();

  return 0;

}

int(timer_test_read_config)(uint8_t timer, enum timer_status_field field) {

  /* To be implemented by the students */

  uint8_t st;

  if(timer_get_conf(timer,&st)==1) return 1;

  if(timer_display_conf(timer,st,field)==1) return 1;

  return 0;

 // printf("%s is not yet implemented!\n", __func__);

}

int(timer_test_time_base)(uint8_t timer, uint32_t freq) {

  /* To be implemented by the students */

  if(freq<MIN_FREQ || freq>TIMER_FREQ)

  {

    printf("OUT OF RANGE FREQUENCY\n");

    return 1;

  }

  return(timer_set_frequency(timer,freq));

  //printf("%s is not yet implemented!\n", __func__);

}

int(timer_test_int)(uint8_t time) {

  /* To be implemented by the students */

  if(time<0) return 1;

  int ipc_status;

  message msg;

  uint8_t r;

  uint8_t bit_no = 0;

  timer_subscribe_int(&bit_no);

  while( (cont/DEFAULT_FREQ)<time )

 { /* You may want to use a different condition */

     /* Get a request message. */

     // printf("1\n");

     //printf("cont:%d, time:%d\n\n",cont/60,time);

     if ( (r = driver_receive(ANY, &msg, &ipc_status)) != 0 ) 

     { 

        printf("driver_receive failed with: %d", r);

       continue;

    }

    if (is_ipc_notify(ipc_status)) { /* received notification */

        switch (_ENDPOINT_P(msg.m_source)) {

            case HARDWARE: /* hardware interrupt notification */                                

                if (msg.m_notify.interrupts  & BIT(0)) { /* subscribed interrupt */

                   timer_int_handler();

                   if(cont%DEFAULT_FREQ==0)

                   timer_print_elapsed_time();

                   //printf("cont:%d\n",cont);

               }

                //printf("msg:%x\n",msg.m_notify.interrupts);

                break;

            default:

                //printf("2\n");

                break; /* no other notifications expected: do nothing */        

        }

    } else {

     // printf("3\n"); /* received a standard message, not a notification */

        /* no standard messages expected: do nothing */

    }

 }

 if(timer_unsubscribe_int()!=0) return 1;

  //printf("%s is not yet implemented!\n", __func__);

  return 0;

}

//dois primeiros bits sao 1, (TIMER_RB_CNTRL|BIT(5))

//SYS_OUTB para controlo->0x43, Config timer 0, dizer que queremos escrever para o controlo, e depois ler a parte corresponder

//g9