root / lab3 / lab3.c @ 64
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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 | 60 | up20180642 | #include "kbc_macros.h" |
| 9 | #include "keyboard.h" |
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| 10 | #include "timer.h" |
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| 11 | #include "utils.h" |
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| 12 | 30 | up20180655 | |
| 13 | int main(int argc, char *argv[]) { |
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| 14 | // sets the language of LCF messages (can be either EN-US or PT-PT)
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| 15 | lcf_set_language("EN-US");
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| 16 | |||
| 17 | // enables to log function invocations that are being "wrapped" by LCF
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| 18 | // [comment this out if you don't want/need it]
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| 19 | lcf_trace_calls("/home/lcom/labs/lab3/trace.txt");
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| 20 | |||
| 21 | // enables to save the output of printf function calls on a file
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| 22 | // [comment this out if you don't want/need it]
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| 23 | lcf_log_output("/home/lcom/labs/lab3/output.txt");
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| 24 | |||
| 25 | // handles control over to LCF
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| 26 | // [LCF handles command line arguments and invokes the right function]
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| 27 | if (lcf_start(argc, argv))
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| 28 | return 1; |
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| 29 | |||
| 30 | // LCF clean up tasks
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| 31 | // [must be the last statement before return]
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| 32 | lcf_cleanup(); |
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| 33 | |||
| 34 | return 0; |
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| 35 | } |
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| 36 | |||
| 37 | int(kbd_test_scan)() {
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| 38 | 44 | up20180642 | /// loop stuff
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| 39 | 30 | up20180655 | int ipc_status, r;
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| 40 | message msg; |
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| 41 | 44 | up20180642 | /// Keyboard interrupt handling
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| 42 | 37 | up20180655 | uint8_t kbc_irq_bit = 1;
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| 43 | 30 | up20180655 | int kbc_id = 0; |
| 44 | 37 | up20180655 | int kbc_irq = BIT(kbc_irq_bit);
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| 45 | 60 | up20180642 | if (subscribe_keyboard_interrupt(kbc_irq_bit, &kbc_id)) return 1; |
| 46 | 44 | up20180642 | /// cycle
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| 47 | int good = 1; |
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| 48 | while (good) {
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| 49 | 30 | up20180655 | /* Get a request message. */
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| 50 | if ((r = driver_receive(ANY, &msg, &ipc_status)) != 0) { |
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| 51 | printf("driver_receive failed with %d", r);
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| 52 | continue;
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| 53 | } |
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| 54 | if (is_ipc_notify(ipc_status)) { /* received notification */ |
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| 55 | switch (_ENDPOINT_P(msg.m_source)) {
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| 56 | case HARDWARE: /* hardware interrupt notification */ |
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| 57 | 37 | up20180655 | if (msg.m_notify.interrupts & kbc_irq) { /* subscribed interrupt */ |
| 58 | 30 | up20180655 | kbc_ih(); |
| 59 | 48 | up20180655 | if(done)
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| 60 | kbd_print_scancode(!(scancode[sz-1] & BREAK_CODE_BIT), sz, scancode);
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| 61 | 44 | up20180642 | if (scancode[0] == ESC_BREAK_CODE) good = 0; |
| 62 | 30 | up20180655 | } |
| 63 | break;
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| 64 | default:
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| 65 | break; /* no other notifications expected: do nothing */ |
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| 66 | } |
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| 67 | } else { /* received standart message, not a notification */ |
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| 68 | /* no standart message expected: do nothing */
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| 69 | } |
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| 70 | } |
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| 71 | |||
| 72 | 44 | up20180642 | if (unsubscribe_interrupt(&kbc_id)) return 1; |
| 73 | 30 | up20180655 | |
| 74 | 42 | up20180642 | if (kbd_print_no_sysinb(sys_inb_counter)) return 1; |
| 75 | 30 | up20180655 | |
| 76 | return 0; |
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| 77 | } |
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| 78 | |||
| 79 | int(kbd_test_poll)() {
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| 80 | 36 | up20180642 | uint8_t c[2]; uint8_t size;
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| 81 | do{
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| 82 | 60 | up20180642 | if(keyboard_poll(c, &size)) return 1; |
| 83 | 50 | up20180655 | if(kbd_print_scancode((~c[size-1])&BREAK_CODE_BIT, size, c)) return 1; |
| 84 | 36 | up20180642 | }while(!(size == 1 && c[0] == ESC_BREAK_CODE)); |
| 85 | 38 | up20180642 | |
| 86 | 60 | up20180642 | if(kbc_restore_keyboard()) return 1; |
| 87 | 39 | up20180642 | |
| 88 | 43 | up20180642 | if(kbd_print_no_sysinb(sys_inb_counter)) return 1; |
| 89 | 42 | up20180642 | |
| 90 | 36 | up20180642 | return 0; |
| 91 | 30 | up20180655 | } |
| 92 | |||
| 93 | 44 | up20180642 | int(kbd_test_timed_scan)(uint8_t idle) {
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| 94 | /// loop stuff
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| 95 | int ipc_status, r;
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| 96 | message msg; |
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| 97 | /// Timer interrupt handling
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| 98 | const uint32_t frequency = 60; // Frequency asummed at 60Hz |
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| 99 | uint8_t timer_irq_bit = 0;
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| 100 | int timer_id = 0; |
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| 101 | int timer_irq = BIT(timer_irq_bit);
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| 102 | if(subscribe_timer_interrupt(timer_irq_bit, &timer_id)) return 1; |
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| 103 | |||
| 104 | no_interrupts = 0;
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| 105 | int time = 0; |
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| 106 | /// Keyboard interrupt handling
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| 107 | uint8_t kbc_irq_bit = 1;
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| 108 | int kbc_id = 0; |
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| 109 | int kbc_irq = BIT(kbc_irq_bit);
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| 110 | 60 | up20180642 | if(subscribe_keyboard_interrupt(kbc_irq_bit, &kbc_id)) return 1; |
| 111 | 44 | up20180642 | /// cycle
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| 112 | int good = 1; |
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| 113 | while (good) {
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| 114 | /* Get a request message. */
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| 115 | if ((r = driver_receive(ANY, &msg, &ipc_status)) != 0) { |
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| 116 | printf("driver_receive failed with %d", r);
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| 117 | continue;
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| 118 | } |
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| 119 | if (is_ipc_notify(ipc_status)) { /* received notification */ |
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| 120 | switch (_ENDPOINT_P(msg.m_source)) {
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| 121 | case HARDWARE: /* hardware interrupt notification */ |
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| 122 | if (msg.m_notify.interrupts & timer_irq) { /* subscribed interrupt */ |
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| 123 | timer_int_handler(); |
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| 124 | //printf("no_interrupts: %d\n", no_interrupts);
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| 125 | if (no_interrupts%frequency == 0) time++; |
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| 126 | if(time >= idle) good = 0; |
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| 127 | } |
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| 128 | if (msg.m_notify.interrupts & kbc_irq) { /// subscribed interrupt |
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| 129 | kbc_ih(); |
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| 130 | 48 | up20180655 | if(done) {
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| 131 | kbd_print_scancode(!(scancode[sz-1] & BREAK_CODE_BIT), sz, scancode);
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| 132 | 44 | up20180642 | time = 0;
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| 133 | 45 | up20180642 | no_interrupts = 0;
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| 134 | 44 | up20180642 | if (scancode[0] == ESC_BREAK_CODE) good = 0; |
| 135 | } |
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| 136 | } |
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| 137 | break;
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| 138 | default:
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| 139 | break; /* no other notifications expected: do nothing */ |
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| 140 | } |
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| 141 | } else { /* received standart message, not a notification */ |
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| 142 | /* no standart message expected: do nothing */
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| 143 | } |
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| 144 | } |
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| 145 | |||
| 146 | if (unsubscribe_interrupt(&kbc_id)) return 1; |
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| 147 | if (unsubscribe_interrupt(&timer_id)) return 1; |
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| 148 | |||
| 149 | return 0; |
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| 150 | 30 | up20180655 | } |