root / proj / src / project / src / interrupts_func.c @ 380
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#include <lcom/lcf.h> |
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#include "interrupts_func.h" |
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#include "timer.h" |
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#include "keyboard.h" |
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#include "mouse.h" |
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#include "hltp.h" |
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#include "utils.h" |
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#include "errors.h" |
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#include "rtc.h" |
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static int timer_subscribed = 0, timer_id; |
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static int keyboard_subscribed = 0, kbc_id; |
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static int mouse_subscribed = 0, mouse_id; |
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static int uart_subscribed = 0, uart_id; |
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static int rtc_subscribed = 0, rtc_id; |
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static void (*const ih[])(void) = { timer_int_handler, |
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kbc_ih, |
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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rtc_ih, |
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NULL,
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NULL,
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NULL,
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mouse_ih, |
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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}; |
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/*
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static void process_received(const uint8_t *p, const size_t sz){
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void *q = NULL;
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hltp_type t = hltp_interpret(p, sz, &q);
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switch(t){
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case hltp_type_string:{
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char *s = q;
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printf("%s\n", s);
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} break;
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default: break;
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}
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}
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*/
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int (subscribe_all)(void) { |
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/// Timer interrupt handling
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timer_id = 0;
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if(subscribe_timer_interrupt(TIMER0_IRQ, &timer_id)) {
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printf("%s: failed to subscribe timer interrupts.\n", __func__);
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return SBCR_ERROR;
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} |
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timer_subscribed = 1;
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/// Keyboard interrupt handling
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kbc_id = 0;
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if (subscribe_kbc_interrupt(KBC_IRQ, &kbc_id)) {
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printf("%s: failed to subscribe keyboard interrupts.\n", __func__);
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if (unsubscribe_all())
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printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n", __func__);
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return SBCR_ERROR;
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} |
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keyboard_subscribed = 1;
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/// Mouse interrupt handling
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mouse_id = 0;
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if (subscribe_mouse_interrupt(MOUSE_IRQ, &mouse_id)) { // subscribes mouse interrupts in exclusive mode |
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printf("%s: failed to subscribe mouse interrupts.\n", __func__);
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if (unsubscribe_all())
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printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n", __func__);
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return SBCR_ERROR;
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} |
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mouse_subscribed = 1;
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if (sys_irqdisable(&mouse_id)) { // temporarily disables our interrupts notifications |
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printf("%s: failed to disable mouse interrupts.\n", __func__);
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if (unsubscribe_all())
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printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n", __func__);
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return SBCR_ERROR;
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} |
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if (mouse_set_data_report(true)) { // enables mouse data reporting |
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printf("%s: failed to enable mouse data reporting.\n", __func__);
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if (unsubscribe_all())
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printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n", __func__);
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return SBCR_ERROR;
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} |
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if (sys_irqenable(&mouse_id)) { // re-enables our interrupts notifications |
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printf("%s: failed to enable mouse interrupts.\n", __func__);
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if (unsubscribe_all())
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printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n", __func__);
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return SBCR_ERROR;
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} |
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if (subscribe_rtc_interrupt(RTC_IRQ, &rtc_id)){
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printf("%s: failed to enable rtc interrupts.\n", __func__);
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if (unsubscribe_all())
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printf("%s: failed to unsubcribe driver, unexpected behaviour is expected.\n", __func__);
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return SBCR_ERROR;
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} |
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rtc_subscribed = 1;
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rtc_set_updates_int(1);
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/// UART interrupt handling
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uart_id = 0;
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uart_set_bits_per_character(COM1_ADDR, 8);
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uart_set_stop_bits (COM1_ADDR, 2);
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uart_set_parity (COM1_ADDR, uart_parity_even); |
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uart_set_bit_rate (COM1_ADDR, 19200);
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uart_enable_int_rx (COM1_ADDR); |
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uart_enable_int_tx(COM1_ADDR); |
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if(subscribe_uart_interrupt(COM1_IRQ, &uart_id)) {
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printf("%s: failed to subscribe UART interrupts.\n", __func__);
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return SBCR_ERROR;
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} |
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uart_subscribed = 1;
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nctp_init(); |
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return SUCCESS;
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} |
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int (unsubscribe_all)(void) { |
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int r = SUCCESS;
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// Unsubscribe Timer Interrupts
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if (timer_subscribed) {
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if (unsubscribe_interrupt(&timer_id)) {
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printf("%s: failed to unsubcribe timer interrupts.\n", __func__);
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r = UNSBCR_ERROR; |
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} |
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timer_subscribed = 0;
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} |
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// Unsubscribe Keyboard interrupts
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if (keyboard_subscribed) {
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if (unsubscribe_interrupt(&kbc_id)) {
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printf("%s: failed to unsubcribe keyboard interrupts.\n", __func__);
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r = UNSBCR_ERROR; |
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} |
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keyboard_subscribed = 0;
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} |
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// Unsubscribe Mouse Interrupts
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if (mouse_subscribed) {
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if (sys_irqdisable(&mouse_id)) { // temporarily disables our interrupts notifications |
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printf("%s: failed to disable mouse interrupts.\n", __func__);
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r = UNSBCR_ERROR; |
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} |
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if (mouse_set_data_report(false)) { // disables mouse data reporting |
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printf("%s: failed to disable mouse data reporting.\n", __func__);
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r = UNSBCR_ERROR; |
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} |
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if (sys_irqenable(&mouse_id)) { // re-enables our interrupts notifications |
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printf("%s: failed to enable mouse interrupts.\n", __func__);
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r = UNSBCR_ERROR; |
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} |
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if (unsubscribe_interrupt(&mouse_id)) { // unsubscribes interrupts |
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printf("%s: failed to unsubcribe mouse interrupts.\n", __func__);
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r = UNSBCR_ERROR; |
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} |
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mouse_subscribed = 0;
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} |
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if (rtc_subscribed) {
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if (unsubscribe_interrupt(&rtc_id)) {
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printf("%s: failed to unsubcribe RTC interrupts.\n", __func__);
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r = UNSBCR_ERROR; |
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} |
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rtc_subscribed = 0;
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} |
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// Unsubscribe UART interrupts
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if (uart_subscribed) {
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if (unsubscribe_interrupt(&uart_id)) {
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printf("%s: failed to unsubcribe UART interrupts.\n", __func__);
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r = UNSBCR_ERROR; |
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} |
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uart_enable_int_rx(COM1_ADDR); |
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uart_enable_int_tx(COM1_ADDR); |
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uart_subscribed = 0;
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} |
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nctp_free(); |
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return r;
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} |
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void (interrupt_handler)(uint8_t handler) {
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if (handler >= 32) return; |
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if ((ih[handler]) == NULL) return; |
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(*ih[handler])(); |
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} |
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int get_interrupts_vector(uint64_t *p){
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int r;
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*p = 0;
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int ipc_status;
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message msg; |
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if ((r = driver_receive(ANY, &msg, &ipc_status)) != 0) { |
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printf("driver_receive failed with %d", r);
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return OTHER_ERROR;
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} |
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if (is_ipc_notify(ipc_status)) { /* received notification */ |
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switch (_ENDPOINT_P(msg.m_source)) {
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case HARDWARE: /* hardware interrupt notification */ |
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*p = msg.m_notify.interrupts; |
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return SUCCESS;
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default: break; /* no other notifications expected: do nothing */ |
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} |
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} |
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return SUCCESS;
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} |