Revision 4
All functions running, review code
| lab2.c | ||
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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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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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/* To be implemented by the students */ |
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printf("%s is not yet implemented!\n", __func__);
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return 1; |
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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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/* To be implemented by the students */ |
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printf("%s is not yet implemented!\n", __func__);
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return 1; |
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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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/* To be implemented by the students */ |
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printf("%s is not yet implemented!\n", __func__);
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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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return 1; |
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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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} |
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