root / lab2 / lab2.c @ 23
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1 | 4 | up20180655 | #include <lcom/lcf.h> |
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2 | #include <lcom/lab2.h> |
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3 | |||
4 | #include <stdbool.h> |
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5 | #include <stdint.h> |
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6 | |||
7 | 23 | up20180655 | extern int no_interrupts; |
8 | 4 | up20180655 | |
9 | int main(int argc, char *argv[]) { |
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10 | // sets the language of LCF messages (can be either EN-US or PT-PT)
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11 | lcf_set_language("EN-US");
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12 | |||
13 | // enables to log function invocations that are being "wrapped" by LCF
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14 | // [comment this out if you don't want/need it]
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15 | lcf_trace_calls("/home/lcom/labs/lab2/trace.txt");
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16 | |||
17 | // enables to save the output of printf function calls on a file
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18 | // [comment this out if you don't want/need it]
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19 | lcf_log_output("/home/lcom/labs/lab2/output.txt");
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20 | |||
21 | // handles control over to LCF
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22 | // [LCF handles command line arguments and invokes the right function]
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23 | if (lcf_start(argc, argv))
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24 | return 1; |
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25 | |||
26 | // LCF clean up tasks
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27 | // [must be the last statement before return]
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28 | lcf_cleanup(); |
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29 | |||
30 | return 0; |
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31 | } |
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32 | |||
33 | 6 | up20180642 | int(timer_test_read_config)(uint8_t timer, enum timer_status_field field){ |
34 | 5 | up20180642 | uint8_t state = 0;
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35 | if(timer_get_conf(timer, &state)) return 1; |
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36 | 6 | up20180642 | if(timer_display_conf(timer, state, field)) return 1; |
37 | 5 | up20180642 | return 0; |
38 | 4 | up20180655 | } |
39 | |||
40 | int(timer_test_time_base)(uint8_t timer, uint32_t freq) {
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41 | 15 | up20180655 | if (timer_set_frequency(timer, freq)) return 1; |
42 | return 0; |
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43 | 4 | up20180655 | } |
44 | |||
45 | int(timer_test_int)(uint8_t time) {
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46 | 20 | up20180655 | int ipc_status, r;
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47 | message msg; |
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48 | 21 | up20180655 | uint8_t irq_set = 1;
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49 | 20 | up20180655 | uint8_t hook = 0;
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50 | 23 | up20180655 | no_interrupts = 0;
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51 | 20 | up20180655 | int freq = 60; // better way to get the frequency of the timer???? |
52 | |||
53 | timer_subscribe_int(&hook); |
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54 | |||
55 | 23 | up20180655 | while (time) {
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56 | 20 | up20180655 | /* Get a request message. */
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57 | if ((r = driver_receive(ANY, &msg, &ipc_status)) != 0) { |
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58 | printf("driver_receive failed with %d", r);
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59 | continue;
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60 | } |
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61 | if (is_ipc_notify(ipc_status)) { /* received notification */ |
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62 | switch (_ENDPOINT_P(msg.m_source)) {
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63 | case HARDWARE: /* hardware interrupt notification */ |
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64 | if (msg.m_notify.interrupts & irq_set) { /* subscribed interrupt */ |
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65 | timer_int_handler(); |
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66 | } |
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67 | break;
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68 | default:
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69 | break; /* no other notifications expected: do nothing */ |
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70 | } |
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71 | } else { /* received standart message, not a notification */ |
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72 | /* no standart message expected: do nothing */
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73 | } |
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74 | 23 | up20180655 | if (!(no_interrupts % freq)) {
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75 | 20 | up20180655 | timer_print_elapsed_time(); |
76 | 23 | up20180655 | time--; |
77 | } |
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78 | 20 | up20180655 | } |
79 | |||
80 | 22 | up20180642 | timer_unsubscribe_int(); |
81 | 20 | up20180655 | |
82 | return 0; |
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83 | 4 | up20180655 | } |