Revision 9
FINAL
| lab3.c | ||
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#include <stdbool.h> |
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#include "i8254.h" |
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#include <stdint.h> |
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#include "i8042.h" |
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#include "keyboard.h" |
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//#include <timer.c> |
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#define IRQ_KB 1 |
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/* #define IRQ_KB 1
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#define DELAY_US 20000 |
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#define EXIT_CODE 0x81 |
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#define I_O_BUFFER 0x60 |
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#define I_O_BUFFER 0x60 */
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static uint32_t scancode; |
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uint32_t cnt=0; |
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uint32_t scancode; |
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int flag=0; |
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int main(int argc, char *argv[]) {
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// sets the language of LCF messages (can be either EN-US or PT-PT) |
| ... | ... | |
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return 0; |
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} |
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void(kbc_ih)() {}
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int(kbd_test_scan)() {
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/* To be completed by the students */ |
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int ipc_status; |
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uint8_t r, bit_no = 0; |
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message msg; |
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int hook_id = bit_no; |
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uint8_t scan_arr[2] = {0, 0};
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/* uint8_t scan_arr[2] = {0, 0};
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int flag = 0; |
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uint32_t cnt=0; |
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int flag = 0; */ |
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printf("%d\n",
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sys_irqsetpolicy(IRQ_KB, IRQ_REENABLE | IRQ_EXCLUSIVE, &hook_id)); |
| ... | ... | |
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case HARDWARE: /* hardware interrupt notification */ |
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if (msg.m_notify.interrupts & BIT(0)) { /* subscribed interrupt */
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#ifdef LAB3 |
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cnt++; |
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#endif |
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sys_inb(0x64, &scancode); |
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if (scancode & 0x01) {
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#ifdef LAB3 |
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cnt++; |
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#endif |
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sys_inb(0x60, &scancode); |
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if (scancode != 0xe0 && flag == 0) {
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// tickdelay(micros_to_ticks(DELAY_US)); |
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scan_arr[0] = scancode; |
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kbd_print_scancode(!(scancode & 0x80), 1, scan_arr); |
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kbc_ih(); |
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} |
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else if (scancode == 0xe0) {
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scan_arr[0] = scancode; |
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flag = 1; |
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} |
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else if (flag == 1) {
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scan_arr[1] = scancode; |
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kbd_print_scancode(!(scancode & 0x80), 2, scan_arr); |
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flag = 0; |
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} |
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} |
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} |
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// printf("msg:%x\n",msg.m_notify.interrupts);
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break; |
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default: |
| ... | ... | |
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/* To be completed by the students */ |
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uint32_t key=0; |
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uint8_t scan_arr[2] = {0, 0};
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int flag = 0; |
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uint32_t cnt=0; |
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sys_outb(0x64,0x20); //enable interrupts again |
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sys_outb(0x64, 0x60); |
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sys_inb(0x60,&key); |
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//int flag = 0; |
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//uint32_t cnt=0; |
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while(scancode != EXIT_CODE) |
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{
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tickdelay(micros_to_ticks(DELAY_US)); |
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#ifdef LAB3 |
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cnt++; |
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#endif |
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sys_inb(0x64, &scancode);
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if (scancode & 0x01) {
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sys_inb(IN_BUF, &scancode);
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if (scancode & O_BUFFER_FULL) {
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#ifdef LAB3 |
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cnt++; |
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#endif |
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sys_inb(0x60, &scancode);
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if (scancode != 0xe0 && flag == 0) {
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sys_inb(I_O_BUFFER, &scancode);
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if (scancode != TWO_BYTES && flag == 0) {
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scan_arr[0] = scancode; |
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kbd_print_scancode(!(scancode & 0x80), 1, scan_arr);
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kbd_print_scancode(!(scancode & PAR_ERR), 1, scan_arr);
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} |
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else if (scancode == 0xe0) {
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else if (scancode == TWO_BYTES) {
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scan_arr[0] = scancode; |
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flag = 1; |
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} |
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else if (flag == 1) {
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scan_arr[1] = scancode; |
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kbd_print_scancode(!(scancode & 0x80), 2, scan_arr);
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kbd_print_scancode(!(scancode & PAR_ERR), 2, scan_arr);
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flag = 0; |
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} |
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} |
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} |
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sys_outb(IN_BUF, READ_CMD); |
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sys_outb(IN_BUF, I_O_BUFFER); |
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#ifdef LAB3 |
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cnt++; |
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#endif |
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sys_inb(I_O_BUFFER,&key); |
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sys_outb(IN_BUF,I_O_BUFFER); //enable interrupts again |
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sys_outb(I_O_BUFFER, key | BIT(0)); |
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kbd_print_no_sysinb(cnt); |
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sys_outb(0x64,0x60); //enable interrupts again |
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sys_outb(0x60, key | BIT(0)); //enable interrupts again |
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return 0; |
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} |
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int(kbd_test_timed_scan)(uint8_t n) {
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/* To be completed by the students */ |
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uint8_t scan_arr[2] = {0, 0};
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int flag=0; |
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/* uint8_t scan_arr[2] = {0, 0};
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int flag=0; */
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int ipc_status; |
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message msg; |
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uint8_t r; |
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uint8_t bit_no_timer = 0, bit_no_kbd = 1; |
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int hook_id_kbd=bit_no_kbd, hook_id_timer=bit_no_timer; |
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int cont=0,cnt=0;
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int cont=0;//cnt=0;
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sys_irqsetpolicy(IRQ_TIMER,IRQ_REENABLE,&hook_id_timer); |
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sys_irqsetpolicy(IRQ_KB, IRQ_REENABLE | IRQ_EXCLUSIVE, &hook_id_kbd); |
| ... | ... | |
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if (msg.m_notify.interrupts & BIT(bit_no_kbd)) |
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{
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#ifdef LAB3 |
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cnt++; |
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#endif |
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sys_inb(0x64, &scancode); |
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if (scancode & 0x01) {
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#ifdef LAB3 |
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cnt++; |
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#endif |
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sys_inb(0x60, &scancode); |
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if (scancode != 0xe0 && flag == 0) |
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{
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scan_arr[0] = scancode; |
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kbd_print_scancode(!(scancode & 0x80), 1, scan_arr); |
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} |
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else if (scancode == 0xe0) |
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{
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scan_arr[0] = scancode; |
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flag = 1; |
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} |
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else if (flag == 1) |
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{
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scan_arr[1] = scancode; |
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kbd_print_scancode(!(scancode & 0x80), 2, scan_arr); |
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flag = 0; |
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} |
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kbc_ih(); |
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cont=0; |
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} |
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//printf("msg:%x\n",msg.m_notify.interrupts);
|
| ... | ... | |
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// printf("3\n"); /* received a standard message, not a notification */
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/* no standard messages expected: do nothing */ |
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} |
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} |
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kbd_print_no_sysinb(cnt); |
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if(sys_irqrmpolicy(&hook_id_timer)!=0) return 1; |
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