root / lab2 / lab2.c @ 4
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#include <lcom/lcf.h> |
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#include <lcom/lab2.h> |
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#include <stdbool.h> |
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#include <stdint.h> |
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extern unsigned int count; |
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int main(int argc, char *argv[]) { |
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// sets the language of LCF messages (can be either EN-US or PT-PT)
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lcf_set_language("EN-US");
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// enables to log function invocations that are being "wrapped" by LCF
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// [comment this out if you don't want/need it]
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lcf_trace_calls("/home/lcom/labs/lab2/trace.txt");
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// enables to save the output of printf function calls on a file
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// [comment this out if you don't want/need it]
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lcf_log_output("/home/lcom/labs/lab2/output.txt");
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// handles control over to LCF
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// [LCF handles command line arguments and invokes the right function]
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if (lcf_start(argc, argv))
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return 1; |
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// LCF clean up tasks
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// [must be the last statement before return]
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lcf_cleanup(); |
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return 0; |
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} |
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int(timer_test_read_config)(uint8_t timer, enum timer_status_field field) { |
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uint8_t st; |
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if(timer<0|timer>2){ //tests for error in timer selection |
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printf("Error selecting timer\n");
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return 1; |
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} |
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else if(timer_get_conf(timer, &st)==1){ |
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printf("Error getting configuration\n");
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return 1; |
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} |
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else if(timer_display_conf(timer, st, field)==1){ |
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printf("Error getting display configuration\n");
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return 1; |
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} |
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return 0; |
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} |
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int(timer_test_time_base)(uint8_t timer, uint32_t freq) {
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if(timer_set_frequency(timer, freq)==1){ //tests for error |
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printf("Error testing time base\n");
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return 1; |
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} |
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return 0; |
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} |
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int(timer_test_int)(uint8_t time) {
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int r, ipc_status;
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uint8_t irq_set; |
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message msg; |
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if(timer_subscribe_int(&irq_set)==1){ |
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printf("Error subscribing int\n");
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return 1; |
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} |
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while(count/60.0<time){ //looping until counter reaches the same value as time |
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if ((r = driver_receive(ANY, &msg, &ipc_status))!=0){ |
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printf("driver_receive failed with: %d",r);
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continue;
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} |
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if (is_ipc_notify(ipc_status)){ //received notification |
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switch (_ENDPOINT_P(msg.m_source)){
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case HARDWARE: //hardware interrupt notification |
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if (msg.m_notify.interrupts &irq_set){ // subscribed interrupt |
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timer_int_handler(); |
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if((count%60)==0){ |
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timer_print_elapsed_time(); //prints message each second;
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} |
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} |
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break;
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default:
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break; //no other notifications expected: do nothing |
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} |
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} |
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else { //received a standard message, not a notification |
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//no standard messages expected: do nothing
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} |
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} |
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if(timer_unsubscribe_int()==1){ |
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printf("Error unsubscribing int\n");
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return 1; |
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} |
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return 0; |
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} |