root / lab3 / lab3.c @ 48
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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 | 44 | up20180642 | #include "timer_func.h" |
| 10 | 30 | up20180655 | |
| 11 | int main(int argc, char *argv[]) { |
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| 12 | // sets the language of LCF messages (can be either EN-US or PT-PT)
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| 13 | lcf_set_language("EN-US");
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| 14 | |||
| 15 | // enables to log function invocations that are being "wrapped" by LCF
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| 16 | // [comment this out if you don't want/need it]
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| 17 | lcf_trace_calls("/home/lcom/labs/lab3/trace.txt");
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| 18 | |||
| 19 | // enables to save the output of printf function calls on a file
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| 20 | // [comment this out if you don't want/need it]
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| 21 | lcf_log_output("/home/lcom/labs/lab3/output.txt");
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| 22 | |||
| 23 | // handles control over to LCF
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| 24 | // [LCF handles command line arguments and invokes the right function]
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| 25 | if (lcf_start(argc, argv))
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| 26 | return 1; |
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| 27 | |||
| 28 | // LCF clean up tasks
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| 29 | // [must be the last statement before return]
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| 30 | lcf_cleanup(); |
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| 31 | |||
| 32 | return 0; |
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| 33 | } |
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| 34 | |||
| 35 | extern uint8_t scancode[2]; |
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| 36 | 48 | up20180655 | extern int sz; |
| 37 | extern int done; |
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| 38 | 31 | up20180655 | extern int got_error; |
| 39 | 42 | up20180642 | extern uint32_t sys_inb_counter;
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| 40 | 30 | up20180655 | |
| 41 | int(kbd_test_scan)() {
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| 42 | 44 | up20180642 | /// loop stuff
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| 43 | 30 | up20180655 | int ipc_status, r;
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| 44 | message msg; |
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| 45 | 44 | up20180642 | /// Keyboard interrupt handling
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| 46 | 37 | up20180655 | uint8_t kbc_irq_bit = 1;
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| 47 | 30 | up20180655 | int kbc_id = 0; |
| 48 | 37 | up20180655 | int kbc_irq = BIT(kbc_irq_bit);
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| 49 | 30 | up20180655 | if (subscribe_kbc_interrupt(kbc_irq_bit, &kbc_id)) return 1; |
| 50 | 44 | up20180642 | /// cycle
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| 51 | int good = 1; |
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| 52 | while (good) {
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| 53 | 30 | up20180655 | /* 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 | kbc_ih(); |
| 63 | 48 | up20180655 | if(done)
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| 64 | kbd_print_scancode(!(scancode[sz-1] & BREAK_CODE_BIT), sz, scancode);
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| 65 | |||
| 66 | 44 | up20180642 | if (scancode[0] == ESC_BREAK_CODE) good = 0; |
| 67 | 30 | up20180655 | } |
| 68 | break;
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| 69 | default:
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| 70 | break; /* no other notifications expected: do nothing */ |
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| 71 | } |
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| 72 | } else { /* received standart message, not a notification */ |
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| 73 | /* no standart message expected: do nothing */
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| 74 | } |
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| 75 | } |
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| 76 | |||
| 77 | 44 | up20180642 | if (unsubscribe_interrupt(&kbc_id)) return 1; |
| 78 | 30 | up20180655 | |
| 79 | 42 | up20180642 | if (kbd_print_no_sysinb(sys_inb_counter)) return 1; |
| 80 | 30 | up20180655 | |
| 81 | return 0; |
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| 82 | } |
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| 83 | |||
| 84 | int(kbd_test_poll)() {
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| 85 | 36 | up20180642 | uint8_t c[2]; uint8_t size;
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| 86 | do{
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| 87 | if(kbd_poll(c, &size)) return 1; |
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| 88 | if(kbd_print_scancode((~c[0])&BREAK_CODE_BIT, size, c)) return 1; |
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| 89 | }while(!(size == 1 && c[0] == ESC_BREAK_CODE)); |
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| 90 | 38 | up20180642 | |
| 91 | 43 | up20180642 | if(kbc_restore_kbd()) return 1; |
| 92 | 39 | up20180642 | |
| 93 | 43 | up20180642 | if(kbd_print_no_sysinb(sys_inb_counter)) return 1; |
| 94 | 42 | up20180642 | |
| 95 | 36 | up20180642 | return 0; |
| 96 | 30 | up20180655 | } |
| 97 | |||
| 98 | 44 | up20180642 | extern int no_interrupts; |
| 99 | 30 | up20180655 | |
| 100 | 44 | up20180642 | int(kbd_test_timed_scan)(uint8_t idle) {
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| 101 | /// loop stuff
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| 102 | int ipc_status, r;
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| 103 | message msg; |
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| 104 | /// Timer interrupt handling
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| 105 | const uint32_t frequency = 60; // Frequency asummed at 60Hz |
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| 106 | uint8_t timer_irq_bit = 0;
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| 107 | int timer_id = 0; |
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| 108 | int timer_irq = BIT(timer_irq_bit);
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| 109 | if(subscribe_timer_interrupt(timer_irq_bit, &timer_id)) return 1; |
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| 110 | |||
| 111 | no_interrupts = 0;
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| 112 | int time = 0; |
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| 113 | /// Keyboard interrupt handling
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| 114 | uint8_t kbc_irq_bit = 1;
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| 115 | int kbc_id = 0; |
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| 116 | int kbc_irq = BIT(kbc_irq_bit);
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| 117 | if(subscribe_kbc_interrupt(kbc_irq_bit, &kbc_id)) return 1; |
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| 118 | /// cycle
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| 119 | int good = 1; |
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| 120 | while (good) {
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| 121 | /* Get a request message. */
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| 122 | if ((r = driver_receive(ANY, &msg, &ipc_status)) != 0) { |
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| 123 | printf("driver_receive failed with %d", r);
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| 124 | continue;
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| 125 | } |
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| 126 | if (is_ipc_notify(ipc_status)) { /* received notification */ |
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| 127 | switch (_ENDPOINT_P(msg.m_source)) {
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| 128 | case HARDWARE: /* hardware interrupt notification */ |
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| 129 | if (msg.m_notify.interrupts & timer_irq) { /* subscribed interrupt */ |
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| 130 | timer_int_handler(); |
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| 131 | //printf("no_interrupts: %d\n", no_interrupts);
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| 132 | if (no_interrupts%frequency == 0) time++; |
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| 133 | if(time >= idle) good = 0; |
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| 134 | } |
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| 135 | if (msg.m_notify.interrupts & kbc_irq) { /// subscribed interrupt |
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| 136 | kbc_ih(); |
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| 137 | 48 | up20180655 | if(done) {
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| 138 | kbd_print_scancode(!(scancode[sz-1] & BREAK_CODE_BIT), sz, scancode);
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| 139 | 44 | up20180642 | time = 0;
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| 140 | 45 | up20180642 | no_interrupts = 0;
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| 141 | 44 | up20180642 | if (scancode[0] == ESC_BREAK_CODE) good = 0; |
| 142 | } |
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| 143 | } |
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| 144 | break;
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| 145 | default:
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| 146 | break; /* no other notifications expected: do nothing */ |
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| 147 | } |
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| 148 | } else { /* received standart message, not a notification */ |
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| 149 | /* no standart message expected: do nothing */
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| 150 | } |
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| 151 | } |
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| 152 | |||
| 153 | if (unsubscribe_interrupt(&kbc_id)) return 1; |
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| 154 | if (unsubscribe_interrupt(&timer_id)) return 1; |
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| 155 | |||
| 156 | return 0; |
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| 157 | 30 | up20180655 | } |