kbc.c
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#include <minix/syslib.h> |
|---|---|
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#include <minix/drivers.h> |
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|
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#include "kbc.h" |
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|
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static int hook, t_hook; |
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unsigned char S_code; |
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|
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int test_scan(void) { |
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|
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int ipc_estado;
|
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message msg; |
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int i = 1; |
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|
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|
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int irq_set = KBCsubscribe_int();
|
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|
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|
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while (i) {
|
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if (driver_receive(ANY, &msg, &ipc_estado) != 0) { |
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printf("A receção do driver falhou com: %d");
|
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continue;
|
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} |
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if (is_ipc_notify(ipc_estado)) {
|
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|
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switch (_ENDPOINT_P(msg.m_source)) {
|
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case HARDWARE:
|
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if (msg.NOTIFY_ARG & irq_set) {
|
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|
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S_code = read_kbc(); |
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|
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|
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if (S_code == 0x81) |
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i = 0;
|
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if (S_code >> 7 == 1) |
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printf("Breakcode: 0x%2x", S_code);
|
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else
|
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printf("Makecode: 0x%2x", S_code);
|
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printf("\n");
|
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|
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} |
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break;
|
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default:
|
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break;
|
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} |
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} else {
|
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} |
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} |
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|
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KBCunsubscribe_int(); |
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|
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} |
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|
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int test_leds(unsigned short n, unsigned short *leds) { |
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|
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int ipc_estado;
|
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message msg; |
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int i;
|
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unsigned long irq_set = timer_subscribe_int(); |
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int j;
|
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unsigned long data; |
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unsigned long BitMask, t_BitMask; |
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int led0 = 0, led1 = 0, led2 = 0; |
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|
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for (i = 0; i < n; i++) { |
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BitMask = 0;
|
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write_kbc(DATA_REG, LEDS_SWITCH); |
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sys_inb(DATA_REG, &data); |
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|
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if (data == 0xFE) { |
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i--; |
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printf("\n Erro no ultimo byte");
|
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} else if (data == 0xFC) { |
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printf("\n Erro na sequência");
|
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i = 0;
|
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} else {
|
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|
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switch (leds[i]) {
|
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case 0: |
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if (led0 == 0) { |
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printf("\nScroll Lock ON");
|
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led0 = BIT(0);
|
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} else {
|
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led0 = 0;
|
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printf("\nScroll Lock OFF");
|
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} |
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break;
|
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case 1: |
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if (led1 == 0) { |
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led1 = BIT(1);
|
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printf("\nNum Lock-ON");
|
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} else {
|
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led1 = 0;
|
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printf("\nNum Lock-OFF");
|
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} |
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break;
|
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case 2: |
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if (led2 == 0) { |
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led2 = BIT(2);
|
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printf("\nCaps Lock-ON");
|
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} else {
|
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led2 = 0;
|
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printf("\nCaps Lock-OFF");
|
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} |
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break;
|
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default:
|
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printf("\nERRO NA POSICAO %d", i);
|
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break;
|
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} |
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BitMask = led0 | led1 | led2; |
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write_kbc(DATA_REG, BitMask); |
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sys_inb(DATA_REG, &data); |
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if (data == 0xfe) |
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i--; |
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else if (data == 0xFC) |
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i = 0;
|
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else {
|
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|
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j = 0;
|
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while (1) { |
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if (driver_receive(ANY, &msg, &ipc_estado) != 0) { |
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printf("\nFalha na recepcao da driver");
|
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continue;
|
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} |
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|
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if (is_ipc_notify(ipc_estado)) {
|
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|
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switch (_ENDPOINT_P(msg.m_source)) {
|
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case HARDWARE:
|
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if (msg.NOTIFY_ARG & irq_set) {
|
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j++; |
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} |
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break;
|
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default:
|
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break;
|
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} |
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} else {
|
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|
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} |
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if (j >= 60) |
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break;
|
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} |
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timer_unsubscribe_int(); |
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|
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} |
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} |
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} |
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|
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} |
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|
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|
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unsigned long KBCsubscribe_int(void) { |
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|
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int response;
|
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int* BitMask;
|
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BitMask = (int*)malloc(sizeof(int)); |
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*BitMask = 0;
|
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response = sys_irqsetpolicy(KB_IRQ, (IRQ_REENABLE | IRQ_EXCLUSIVE), BitMask); |
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hook = *BitMask; |
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if (response == OK && sys_irqenable(BitMask) == OK) {
|
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return 1; |
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} else
|
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return 0; |
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} |
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|
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int KBCunsubscribe_int() {
|
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|
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if (sys_irqdisable(&hook) == OK && sys_irqrmpolicy(&hook) == OK)
|
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return 0; |
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else
|
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return 1; |
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} |
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|
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|
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|
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|
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|
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int write_kbc(unsigned long port, unsigned char byte) { |
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unsigned long estado; |
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|
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while (1) { |
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sys_inb(STAT_REG, &estado); |
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|
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if ((estado & IBF) == 0) { |
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sys_outb(port, byte); |
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return 0; |
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} |
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tickdelay(micros_to_ticks(DELAY_US)); |
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} |
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return -1; |
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} |
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|
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int read_kbc() {
|
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unsigned long estado, data; |
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while (1) { |
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sys_inb(STAT_REG, &estado); |
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|
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if ((estado & OBF) != 0) { |
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if (AUX == 1) |
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return -1; |
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else
|
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sys_inb(DATA_REG, &data); |
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|
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if ((estado & (PAR_ERR | TO_ERR)) == 0) |
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return data;
|
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else if (data == 0xFE) |
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return data;
|
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else if (data == 0xFC) |
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return data;
|
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else
|
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return -1; |
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} |
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tickdelay(micros_to_ticks(DELAY_US)); |
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} |
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return -1; |
| 216 |
} |
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|
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unsigned long timer_subscribe_int(void) { |
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int* t_BitMask;
|
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t_BitMask = (int*) malloc(sizeof(int)); |
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*t_BitMask = 2;
|
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t_hook = *t_BitMask; |
| 223 |
if (sys_irqsetpolicy(TIMER0_IRQ, IRQ_REENABLE, t_BitMask) == OK
|
| 224 |
&& sys_irqenable(t_BitMask) == OK) {
|
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return 4; |
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} else
|
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return 0; |
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} |
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|
| 230 |
int timer_unsubscribe_int() {
|
| 231 |
if (sys_irqrmpolicy(&t_hook) == OK && sys_irqdisable(&t_hook) == OK)
|
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return 0; |
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else
|
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return 1; |
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} |
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|