root / lab3 / lab3.c @ 43
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| 1 | 30 | up20180655 | #include <lcom/lcf.h> |
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| 2 | #include <lcom/lab3.h> |
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| 3 | |||
| 4 | #include <stdbool.h> |
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| 5 | #include <stdint.h> |
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| 6 | |||
| 7 | #include "kbc.h" |
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| 8 | #include "kbc_func.h" |
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| 9 | |||
| 10 | int main(int argc, char *argv[]) { |
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| 11 | // sets the language of LCF messages (can be either EN-US or PT-PT)
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| 12 | lcf_set_language("EN-US");
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| 13 | |||
| 14 | // enables to log function invocations that are being "wrapped" by LCF
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| 15 | // [comment this out if you don't want/need it]
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| 16 | lcf_trace_calls("/home/lcom/labs/lab3/trace.txt");
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| 17 | |||
| 18 | // enables to save the output of printf function calls on a file
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| 19 | // [comment this out if you don't want/need it]
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| 20 | lcf_log_output("/home/lcom/labs/lab3/output.txt");
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| 21 | |||
| 22 | // handles control over to LCF
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| 23 | // [LCF handles command line arguments and invokes the right function]
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| 24 | if (lcf_start(argc, argv))
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| 25 | return 1; |
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| 26 | |||
| 27 | // LCF clean up tasks
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| 28 | // [must be the last statement before return]
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| 29 | lcf_cleanup(); |
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| 30 | |||
| 31 | return 0; |
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| 32 | } |
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| 33 | |||
| 34 | extern uint8_t scancode[2]; |
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| 35 | extern int two_byte_scancode; |
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| 36 | 31 | up20180655 | extern int got_error; |
| 37 | 42 | up20180642 | extern uint32_t sys_inb_counter;
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| 38 | 30 | up20180655 | |
| 39 | int(kbd_test_scan)() {
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| 40 | |||
| 41 | int ipc_status, r;
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| 42 | message msg; |
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| 43 | |||
| 44 | 37 | up20180655 | uint8_t kbc_irq_bit = 1;
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| 45 | 30 | up20180655 | int kbc_id = 0; |
| 46 | 37 | up20180655 | int kbc_irq = BIT(kbc_irq_bit);
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| 47 | 30 | up20180655 | |
| 48 | int got_esc_breakcode = 0; |
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| 49 | |||
| 50 | if (subscribe_kbc_interrupt(kbc_irq_bit, &kbc_id)) return 1; |
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| 51 | |||
| 52 | while (!got_esc_breakcode) {
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| 53 | /* Get a request message. */
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| 54 | if ((r = driver_receive(ANY, &msg, &ipc_status)) != 0) { |
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| 55 | printf("driver_receive failed with %d", r);
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| 56 | continue;
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| 57 | } |
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| 58 | if (is_ipc_notify(ipc_status)) { /* received notification */ |
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| 59 | switch (_ENDPOINT_P(msg.m_source)) {
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| 60 | case HARDWARE: /* hardware interrupt notification */ |
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| 61 | 37 | up20180655 | if (msg.m_notify.interrupts & kbc_irq) { /* subscribed interrupt */ |
| 62 | 30 | up20180655 | |
| 63 | kbc_ih(); |
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| 64 | |||
| 65 | 31 | up20180655 | if (!(two_byte_scancode || got_error)) { /* finished processing a scancode */ |
| 66 | 30 | up20180655 | if (scancode[0] == TWO_BYTE_CODE) |
| 67 | kbd_print_scancode(!(scancode[1] & BREAK_CODE_BIT), 2, scancode); |
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| 68 | else
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| 69 | kbd_print_scancode(!(scancode[0] & BREAK_CODE_BIT), 1, scancode); |
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| 70 | 31 | up20180655 | } else {
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| 71 | break;
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| 72 | 30 | up20180655 | } |
| 73 | |||
| 74 | if (scancode[0] == ESC_BREAK_CODE) |
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| 75 | got_esc_breakcode = 1;
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| 76 | |||
| 77 | } |
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| 78 | break;
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| 79 | default:
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| 80 | break; /* no other notifications expected: do nothing */ |
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| 81 | } |
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| 82 | } else { /* received standart message, not a notification */ |
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| 83 | /* no standart message expected: do nothing */
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| 84 | } |
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| 85 | } |
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| 86 | |||
| 87 | if (unsubscribe_kbc_interrupt(&kbc_id)) return 1; |
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| 88 | |||
| 89 | 42 | up20180642 | if (kbd_print_no_sysinb(sys_inb_counter)) return 1; |
| 90 | 30 | up20180655 | |
| 91 | return 0; |
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| 92 | } |
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| 93 | |||
| 94 | int(kbd_test_poll)() {
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| 95 | 36 | up20180642 | uint8_t c[2]; uint8_t size;
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| 96 | do{
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| 97 | if(kbd_poll(c, &size)) return 1; |
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| 98 | if(kbd_print_scancode((~c[0])&BREAK_CODE_BIT, size, c)) return 1; |
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| 99 | }while(!(size == 1 && c[0] == ESC_BREAK_CODE)); |
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| 100 | 38 | up20180642 | |
| 101 | 43 | up20180642 | if(kbc_restore_kbd()) return 1; |
| 102 | 39 | up20180642 | |
| 103 | 43 | up20180642 | if(kbd_print_no_sysinb(sys_inb_counter)) return 1; |
| 104 | 42 | up20180642 | |
| 105 | 36 | up20180642 | return 0; |
| 106 | 30 | up20180655 | } |
| 107 | |||
| 108 | int(kbd_test_timed_scan)(uint8_t n) {
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| 109 | /* To be completed by the students */
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| 110 | printf("%s is not yet implemented!\n", __func__);
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| 111 | |||
| 112 | return 1; |
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| 113 | } |