root / proj / src / interrupts_func.c @ 297
History | View | Annotate | Download (6.77 KB)
| 1 | 178 | up20180642 | #include <lcom/lcf.h> |
|---|---|---|---|
| 2 | |||
| 3 | 154 | up20180655 | #include "interrupts_func.h" |
| 4 | #include "timer.h" |
||
| 5 | #include "keyboard.h" |
||
| 6 | #include "mouse.h" |
||
| 7 | 287 | up20180642 | #include "hltp.h" |
| 8 | 154 | up20180655 | #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 | 263 | up20180642 | static int uart_subscribed = 0, uart_id; |
| 18 | |||
| 19 | 154 | up20180655 | static void (*const ih[])(void) = { timer_int_handler, |
| 20 | kbc_ih, |
||
| 21 | NULL,
|
||
| 22 | NULL,
|
||
| 23 | NULL,
|
||
| 24 | NULL,
|
||
| 25 | NULL,
|
||
| 26 | NULL,
|
||
| 27 | NULL,
|
||
| 28 | NULL,
|
||
| 29 | NULL,
|
||
| 30 | NULL,
|
||
| 31 | mouse_ih, |
||
| 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 | NULL,
|
||
| 50 | NULL,
|
||
| 51 | }; |
||
| 52 | 297 | up20180642 | /*
|
| 53 | 287 | up20180642 | static void process_received(const uint8_t *p, const size_t sz){
|
| 54 | void *q = NULL;
|
||
| 55 | hltp_type t = hltp_interpret(p, sz, &q);
|
||
| 56 | switch(t){
|
||
| 57 | case hltp_type_string:{
|
||
| 58 | char *s = q;
|
||
| 59 | printf("%s\n", s);
|
||
| 60 | } break;
|
||
| 61 | default: break;
|
||
| 62 | }
|
||
| 63 | }
|
||
| 64 | 297 | up20180642 | */
|
| 65 | 154 | up20180655 | int (subscribe_all)(void) { |
| 66 | |||
| 67 | /// Timer interrupt handling
|
||
| 68 | timer_id = 0;
|
||
| 69 | if(subscribe_timer_interrupt(TIMER0_IRQ, &timer_id)) {
|
||
| 70 | printf("%s: failed to subscribe timer interrupts.\n", __func__);
|
||
| 71 | return SBCR_ERROR;
|
||
| 72 | } |
||
| 73 | timer_subscribed = 1;
|
||
| 74 | |||
| 75 | /// Keyboard interrupt handling
|
||
| 76 | kbc_id = 0;
|
||
| 77 | if (subscribe_kbc_interrupt(KBC_IRQ, &kbc_id)) {
|
||
| 78 | printf("%s: failed to subscribe keyboard interrupts.\n", __func__);
|
||
| 79 | if (unsubscribe_all())
|
||
| 80 | printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n");
|
||
| 81 | return SBCR_ERROR;
|
||
| 82 | } |
||
| 83 | keyboard_subscribed = 1;
|
||
| 84 | |||
| 85 | /// Mouse interrupt handling
|
||
| 86 | mouse_id = 0;
|
||
| 87 | if (subscribe_mouse_interrupt(MOUSE_IRQ, &mouse_id)) { // subscribes mouse interrupts in exclusive mode |
||
| 88 | printf("%s: failed to subscribe mouse interrupts.\n", __func__);
|
||
| 89 | if (unsubscribe_all())
|
||
| 90 | printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n");
|
||
| 91 | return SBCR_ERROR;
|
||
| 92 | } |
||
| 93 | mouse_subscribed = 1;
|
||
| 94 | if (sys_irqdisable(&mouse_id)) { // temporarily disables our interrupts notifications |
||
| 95 | printf("%s: failed to disable mouse interrupts.\n", __func__);
|
||
| 96 | if (unsubscribe_all())
|
||
| 97 | printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n");
|
||
| 98 | return SBCR_ERROR;
|
||
| 99 | } |
||
| 100 | if (mouse_set_data_report(true)) { // enables mouse data reporting |
||
| 101 | printf("%s: failed to enable mouse data reporting.\n", __func__);
|
||
| 102 | if (unsubscribe_all())
|
||
| 103 | printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n");
|
||
| 104 | return SBCR_ERROR;
|
||
| 105 | } |
||
| 106 | if (sys_irqenable(&mouse_id)) { // re-enables our interrupts notifications |
||
| 107 | printf("%s: failed to enable mouse interrupts.\n", __func__);
|
||
| 108 | if (unsubscribe_all())
|
||
| 109 | printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n");
|
||
| 110 | return SBCR_ERROR;
|
||
| 111 | } |
||
| 112 | |||
| 113 | 263 | up20180642 | /// UART interrupt handling
|
| 114 | uart_id = 0;
|
||
| 115 | 272 | up20180642 | uart_set_bits_per_character(COM1_ADDR, 8);
|
| 116 | uart_set_stop_bits (COM1_ADDR, 2);
|
||
| 117 | uart_set_parity (COM1_ADDR, uart_parity_even); |
||
| 118 | uart_set_bit_rate (COM1_ADDR, 38400);
|
||
| 119 | 263 | up20180642 | uart_enable_int_rx (COM1_ADDR); |
| 120 | 275 | up20180642 | uart_enable_int_tx(COM1_ADDR); |
| 121 | 263 | up20180642 | if(subscribe_uart_interrupt(COM1_IRQ, &uart_id)) {
|
| 122 | printf("%s: failed to subscribe UART interrupts.\n", __func__);
|
||
| 123 | return SBCR_ERROR;
|
||
| 124 | } |
||
| 125 | uart_subscribed = 1;
|
||
| 126 | 297 | up20180642 | nctp_init(); |
| 127 | 263 | up20180642 | |
| 128 | 154 | up20180655 | return SUCCESS;
|
| 129 | } |
||
| 130 | |||
| 131 | int (unsubscribe_all)(void) { |
||
| 132 | int r = SUCCESS;
|
||
| 133 | |||
| 134 | // Unsubscribe Timer Interrupts
|
||
| 135 | if (timer_subscribed) {
|
||
| 136 | if (unsubscribe_interrupt(&timer_id)) {
|
||
| 137 | printf("%s: failed to unsubcribe timer interrupts.\n");
|
||
| 138 | r = UNSBCR_ERROR; |
||
| 139 | } |
||
| 140 | timer_subscribed = 0;
|
||
| 141 | } |
||
| 142 | |||
| 143 | // Unsubscribe Keyboard interrupts
|
||
| 144 | if (keyboard_subscribed) {
|
||
| 145 | if (unsubscribe_interrupt(&kbc_id)) {
|
||
| 146 | printf("%s: failed to unsubcribe keyboard interrupts.\n");
|
||
| 147 | r = UNSBCR_ERROR; |
||
| 148 | } |
||
| 149 | keyboard_subscribed = 0;
|
||
| 150 | } |
||
| 151 | |||
| 152 | // Unsubscribe Mouse Interrupts
|
||
| 153 | if (mouse_subscribed) {
|
||
| 154 | if (sys_irqdisable(&mouse_id)) { // temporarily disables our interrupts notifications |
||
| 155 | printf("%s: failed to disable mouse interrupts.\n");
|
||
| 156 | r = UNSBCR_ERROR; |
||
| 157 | } |
||
| 158 | if (mouse_set_data_report(false)) { // disables mouse data reporting |
||
| 159 | printf("%s: failed to disable mouse data reporting.\n");
|
||
| 160 | r = UNSBCR_ERROR; |
||
| 161 | } |
||
| 162 | if (sys_irqenable(&mouse_id)) { // re-enables our interrupts notifications |
||
| 163 | printf("%s: failed to enable mouse interrupts.\n");
|
||
| 164 | r = UNSBCR_ERROR; |
||
| 165 | } |
||
| 166 | if (unsubscribe_interrupt(&mouse_id)) { // unsubscribes interrupts |
||
| 167 | printf("%s: failed to unsubcribe mouse interrupts.\n");
|
||
| 168 | r = UNSBCR_ERROR; |
||
| 169 | } |
||
| 170 | mouse_subscribed = 0;
|
||
| 171 | } |
||
| 172 | |||
| 173 | 263 | up20180642 | // Unsubscribe UART interrupts
|
| 174 | if (uart_subscribed) {
|
||
| 175 | if (unsubscribe_interrupt(&uart_id)) {
|
||
| 176 | printf("%s: failed to unsubcribe UART interrupts.\n");
|
||
| 177 | r = UNSBCR_ERROR; |
||
| 178 | } |
||
| 179 | uart_enable_int_rx(COM1_ADDR); |
||
| 180 | uart_enable_int_tx(COM1_ADDR); |
||
| 181 | uart_subscribed = 0;
|
||
| 182 | } |
||
| 183 | 275 | up20180642 | nctp_free(); |
| 184 | 263 | up20180642 | |
| 185 | 154 | up20180655 | return r;
|
| 186 | } |
||
| 187 | |||
| 188 | 250 | up20180655 | void (interrupt_handler)(uint8_t handler) {
|
| 189 | 154 | up20180655 | if (handler >= 32) return; |
| 190 | if ((*ih[handler]) == NULL) return; |
||
| 191 | (*ih[handler])(); |
||
| 192 | } |
||
| 193 | 250 | up20180655 | |
| 194 | void (timer_manager)() {
|
||
| 195 | |||
| 196 | } |
||
| 197 | |||
| 198 | void (mouse_manager)() {
|
||
| 199 | |||
| 200 | } |