root / lab3 / lab3.c @ 9
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| 1 | 8 | up20180645 | #include <lcom/lcf.h> |
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| 2 | |||
| 3 | #include <lcom/lab3.h> |
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| 4 | |||
| 5 | #include <stdbool.h> |
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| 6 | #include <stdint.h> |
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| 7 | 9 | up20180645 | #include "keyboard.h" |
| 8 | 8 | up20180645 | int main(int argc, char *argv[]) { |
| 9 | // sets the language of LCF messages (can be either EN-US or PT-PT)
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| 10 | lcf_set_language("EN-US");
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| 11 | |||
| 12 | // enables to log function invocations that are being "wrapped" by LCF
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| 13 | // [comment this out if you don't want/need it]
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| 14 | lcf_trace_calls("/home/lcom/labs/lab3/trace.txt");
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| 15 | |||
| 16 | // enables to save the output of printf function calls on a file
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| 17 | // [comment this out if you don't want/need it]
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| 18 | lcf_log_output("/home/lcom/labs/lab3/output.txt");
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| 19 | |||
| 20 | // handles control over to LCF
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| 21 | // [LCF handles command line arguments and invokes the right function]
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| 22 | if (lcf_start(argc, argv))
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| 23 | return 1; |
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| 24 | |||
| 25 | // LCF clean up tasks
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| 26 | // [must be the last statement before return]
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| 27 | lcf_cleanup(); |
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| 28 | |||
| 29 | return 0; |
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| 30 | } |
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| 31 | |||
| 32 | 9 | up20180645 | extern uint8_t scan_reg;
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| 33 | |||
| 34 | 8 | up20180645 | int(kbd_test_scan)() {
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| 35 | 9 | up20180645 | int r, ipc_status;
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| 36 | uint8_t keyboard_irq, size, byte[2]; //size of scancode can be 2 byte long |
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| 37 | message msg; |
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| 38 | bool make=false; //to check if code is make or break |
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| 39 | 8 | up20180645 | |
| 40 | 9 | up20180645 | if(kbc_subscribe_int(keyboard_irq)==1){ |
| 41 | printf("Error subscribing int\n");
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| 42 | return 1; |
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| 43 | } |
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| 44 | |||
| 45 | while(scan_code!=ESC_BREAK){ //looping until status_reg is the breakcode of ESC key |
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| 46 | if ((r = driver_receive(ANY, &msg, &ipc_status))==1){ |
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| 47 | printf("driver_receive failed with: %d",r);
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| 48 | continue;
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| 49 | } |
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| 50 | if (is_ipc_notify(ipc_status)){ //received notification |
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| 51 | switch (_ENDPOINT_P(msg.m_source)){
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| 52 | case HARDWARE: //hardware interrupt notification |
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| 53 | if (msg.m_notify.interrupts &keyboard_irq){ // subscribed interrupt |
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| 54 | |||
| 55 | kbc_ih(); |
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| 56 | bytes[0]=scan_code;
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| 57 | bytes[1]=scan_code;
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| 58 | |||
| 59 | if(bytes[0]==TWO_BYTE_SCANCODE){ |
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| 60 | size=2;
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| 61 | } |
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| 62 | else{
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| 63 | size=1;
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| 64 | } |
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| 65 | |||
| 66 | if (scan_code & MAKE_CODE){ // 4 - Checks if code is make or break |
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| 67 | make = false; //break code |
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| 68 | } |
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| 69 | else {
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| 70 | make = true; //make code |
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| 71 | } |
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| 72 | kbd_print_scancode(make, size, bytes); //prints the code
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| 73 | } |
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| 74 | break;
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| 75 | default:
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| 76 | break; //no other notifications expected: do nothing |
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| 77 | } |
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| 78 | } |
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| 79 | else { //received a standard message, not a notification |
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| 80 | //no standard messages expected: do nothing
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| 81 | } |
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| 82 | } |
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| 83 | |||
| 84 | if (kbc_unsubscribe_int() != 0) { // Check if subscription worked |
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| 85 | printf("Error unsubscribing int \n");
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| 86 | return 1; |
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| 87 | } |
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| 88 | |||
| 89 | return 0; |
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| 90 | 8 | up20180645 | } |
| 91 | |||
| 92 | int(kbd_test_poll)() {
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| 93 | /* To be completed by the students */
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| 94 | printf("%s is not yet implemented!\n", __func__);
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| 95 | |||
| 96 | return 1; |
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| 97 | } |
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| 98 | |||
| 99 | int(kbd_test_timed_scan)(uint8_t n) {
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| 100 | /* To be completed by the students */
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| 101 | printf("%s is not yet implemented!\n", __func__);
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| 102 | |||
| 103 | return 1; |
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| 104 | } |