root / proj / src / interrupts_func.c @ 260
History | View | Annotate | Download (5.56 KB)
| 1 | 178 | up20180642 | #include <lcom/lcf.h> |
|---|---|---|---|
| 2 | |||
| 3 | 154 | up20180655 | #include "interrupts_func.h" |
| 4 | #include "timer.h" |
||
| 5 | #include "i8254.h" |
||
| 6 | #include "keyboard.h" |
||
| 7 | #include "mouse.h" |
||
| 8 | #include "utils.h" |
||
| 9 | #include "errors.h" |
||
| 10 | |||
| 11 | static int timer_subscribed = 0, timer_id; |
||
| 12 | |||
| 13 | static int keyboard_subscribed = 0, kbc_id; |
||
| 14 | |||
| 15 | static int mouse_subscribed = 0, mouse_id; |
||
| 16 | |||
| 17 | static void (*const ih[])(void) = { timer_int_handler, |
||
| 18 | kbc_ih, |
||
| 19 | NULL,
|
||
| 20 | NULL,
|
||
| 21 | NULL,
|
||
| 22 | NULL,
|
||
| 23 | NULL,
|
||
| 24 | NULL,
|
||
| 25 | NULL,
|
||
| 26 | NULL,
|
||
| 27 | NULL,
|
||
| 28 | NULL,
|
||
| 29 | mouse_ih, |
||
| 30 | NULL,
|
||
| 31 | NULL,
|
||
| 32 | NULL,
|
||
| 33 | NULL,
|
||
| 34 | NULL,
|
||
| 35 | NULL,
|
||
| 36 | NULL,
|
||
| 37 | NULL,
|
||
| 38 | NULL,
|
||
| 39 | NULL,
|
||
| 40 | NULL,
|
||
| 41 | NULL,
|
||
| 42 | NULL,
|
||
| 43 | NULL,
|
||
| 44 | NULL,
|
||
| 45 | NULL,
|
||
| 46 | NULL,
|
||
| 47 | NULL,
|
||
| 48 | NULL,
|
||
| 49 | }; |
||
| 50 | |||
| 51 | int (subscribe_all)(void) { |
||
| 52 | |||
| 53 | /// Timer interrupt handling
|
||
| 54 | timer_id = 0;
|
||
| 55 | if(subscribe_timer_interrupt(TIMER0_IRQ, &timer_id)) {
|
||
| 56 | printf("%s: failed to subscribe timer interrupts.\n", __func__);
|
||
| 57 | return SBCR_ERROR;
|
||
| 58 | } |
||
| 59 | timer_subscribed = 1;
|
||
| 60 | |||
| 61 | /// Keyboard interrupt handling
|
||
| 62 | kbc_id = 0;
|
||
| 63 | if (subscribe_kbc_interrupt(KBC_IRQ, &kbc_id)) {
|
||
| 64 | printf("%s: failed to subscribe keyboard interrupts.\n", __func__);
|
||
| 65 | if (unsubscribe_all())
|
||
| 66 | printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n");
|
||
| 67 | return SBCR_ERROR;
|
||
| 68 | } |
||
| 69 | keyboard_subscribed = 1;
|
||
| 70 | |||
| 71 | /// Mouse interrupt handling
|
||
| 72 | mouse_id = 0;
|
||
| 73 | if (subscribe_mouse_interrupt(MOUSE_IRQ, &mouse_id)) { // subscribes mouse interrupts in exclusive mode |
||
| 74 | printf("%s: failed to subscribe mouse interrupts.\n", __func__);
|
||
| 75 | if (unsubscribe_all())
|
||
| 76 | printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n");
|
||
| 77 | return SBCR_ERROR;
|
||
| 78 | } |
||
| 79 | mouse_subscribed = 1;
|
||
| 80 | if (sys_irqdisable(&mouse_id)) { // temporarily disables our interrupts notifications |
||
| 81 | printf("%s: failed to disable mouse interrupts.\n", __func__);
|
||
| 82 | if (unsubscribe_all())
|
||
| 83 | printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n");
|
||
| 84 | return SBCR_ERROR;
|
||
| 85 | } |
||
| 86 | if (mouse_set_data_report(true)) { // enables mouse data reporting |
||
| 87 | printf("%s: failed to enable mouse data reporting.\n", __func__);
|
||
| 88 | if (unsubscribe_all())
|
||
| 89 | printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n");
|
||
| 90 | return SBCR_ERROR;
|
||
| 91 | } |
||
| 92 | if (sys_irqenable(&mouse_id)) { // re-enables our interrupts notifications |
||
| 93 | printf("%s: failed to enable mouse interrupts.\n", __func__);
|
||
| 94 | if (unsubscribe_all())
|
||
| 95 | printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n");
|
||
| 96 | return SBCR_ERROR;
|
||
| 97 | } |
||
| 98 | |||
| 99 | return SUCCESS;
|
||
| 100 | } |
||
| 101 | |||
| 102 | int (unsubscribe_all)(void) { |
||
| 103 | int r = SUCCESS;
|
||
| 104 | |||
| 105 | // Unsubscribe Timer Interrupts
|
||
| 106 | if (timer_subscribed) {
|
||
| 107 | if (unsubscribe_interrupt(&timer_id)) {
|
||
| 108 | printf("%s: failed to unsubcribe timer interrupts.\n");
|
||
| 109 | r = UNSBCR_ERROR; |
||
| 110 | } |
||
| 111 | timer_subscribed = 0;
|
||
| 112 | } |
||
| 113 | |||
| 114 | // Unsubscribe Keyboard interrupts
|
||
| 115 | if (keyboard_subscribed) {
|
||
| 116 | if (unsubscribe_interrupt(&kbc_id)) {
|
||
| 117 | printf("%s: failed to unsubcribe keyboard interrupts.\n");
|
||
| 118 | r = UNSBCR_ERROR; |
||
| 119 | } |
||
| 120 | keyboard_subscribed = 0;
|
||
| 121 | } |
||
| 122 | |||
| 123 | // Unsubscribe Mouse Interrupts
|
||
| 124 | if (mouse_subscribed) {
|
||
| 125 | if (sys_irqdisable(&mouse_id)) { // temporarily disables our interrupts notifications |
||
| 126 | printf("%s: failed to disable mouse interrupts.\n");
|
||
| 127 | r = UNSBCR_ERROR; |
||
| 128 | } |
||
| 129 | if (mouse_set_data_report(false)) { // disables mouse data reporting |
||
| 130 | printf("%s: failed to disable mouse data reporting.\n");
|
||
| 131 | r = UNSBCR_ERROR; |
||
| 132 | } |
||
| 133 | if (sys_irqenable(&mouse_id)) { // re-enables our interrupts notifications |
||
| 134 | printf("%s: failed to enable mouse interrupts.\n");
|
||
| 135 | r = UNSBCR_ERROR; |
||
| 136 | } |
||
| 137 | if (unsubscribe_interrupt(&mouse_id)) { // unsubscribes interrupts |
||
| 138 | printf("%s: failed to unsubcribe mouse interrupts.\n");
|
||
| 139 | r = UNSBCR_ERROR; |
||
| 140 | } |
||
| 141 | mouse_subscribed = 0;
|
||
| 142 | } |
||
| 143 | |||
| 144 | return r;
|
||
| 145 | } |
||
| 146 | |||
| 147 | 250 | up20180655 | void (interrupt_handler)(uint8_t handler) {
|
| 148 | 154 | up20180655 | if (handler >= 32) return; |
| 149 | if ((*ih[handler]) == NULL) return; |
||
| 150 | (*ih[handler])(); |
||
| 151 | } |
||
| 152 | 250 | up20180655 | |
| 153 | void (timer_manager)() {
|
||
| 154 | |||
| 155 | } |
||
| 156 | |||
| 157 | void (mouse_manager)() {
|
||
| 158 | |||
| 159 | } |