Revision 9
Added Makefile, keyboard files and i8xxx.h files
| lab3.c | ||
|---|---|---|
| 4 | 4 |
|
| 5 | 5 |
#include <stdbool.h> |
| 6 | 6 |
#include <stdint.h> |
| 7 |
|
|
| 7 |
#include "keyboard.h" |
|
| 8 | 8 |
int main(int argc, char *argv[]) {
|
| 9 | 9 |
// sets the language of LCF messages (can be either EN-US or PT-PT) |
| 10 | 10 |
lcf_set_language("EN-US");
|
| ... | ... | |
| 29 | 29 |
return 0; |
| 30 | 30 |
} |
| 31 | 31 |
|
| 32 |
extern uint8_t scan_reg; |
|
| 33 |
|
|
| 32 | 34 |
int(kbd_test_scan)() {
|
| 33 |
/* To be completed by the students */ |
|
| 34 |
printf("%s is not yet implemented!\n", __func__);
|
|
| 35 |
int r, ipc_status; |
|
| 36 |
uint8_t keyboard_irq, size, byte[2]; //size of scancode can be 2 byte long |
|
| 37 |
message msg; |
|
| 38 |
bool make=false; //to check if code is make or break |
|
| 35 | 39 |
|
| 36 |
return 1; |
|
| 40 |
if(kbc_subscribe_int(keyboard_irq)==1){
|
|
| 41 |
printf("Error subscribing int\n");
|
|
| 42 |
return 1; |
|
| 43 |
} |
|
| 44 |
|
|
| 45 |
while(scan_code!=ESC_BREAK){ //looping until status_reg is the breakcode of ESC key
|
|
| 46 |
if ((r = driver_receive(ANY, &msg, &ipc_status))==1){
|
|
| 47 |
printf("driver_receive failed with: %d",r);
|
|
| 48 |
continue; |
|
| 49 |
} |
|
| 50 |
if (is_ipc_notify(ipc_status)){ //received notification
|
|
| 51 |
switch (_ENDPOINT_P(msg.m_source)){
|
|
| 52 |
case HARDWARE: //hardware interrupt notification |
|
| 53 |
if (msg.m_notify.interrupts &keyboard_irq){ // subscribed interrupt
|
|
| 54 |
|
|
| 55 |
kbc_ih(); |
|
| 56 |
bytes[0]=scan_code; |
|
| 57 |
bytes[1]=scan_code; |
|
| 58 |
|
|
| 59 |
if(bytes[0]==TWO_BYTE_SCANCODE){
|
|
| 60 |
size=2; |
|
| 61 |
} |
|
| 62 |
else{
|
|
| 63 |
size=1; |
|
| 64 |
} |
|
| 65 |
|
|
| 66 |
if (scan_code & MAKE_CODE){ // 4 - Checks if code is make or break
|
|
| 67 |
make = false; //break code |
|
| 68 |
} |
|
| 69 |
else {
|
|
| 70 |
make = true; //make code |
|
| 71 |
} |
|
| 72 |
kbd_print_scancode(make, size, bytes); //prints the code |
|
| 73 |
} |
|
| 74 |
break; |
|
| 75 |
default: |
|
| 76 |
break; //no other notifications expected: do nothing |
|
| 77 |
} |
|
| 78 |
} |
|
| 79 |
else { //received a standard message, not a notification
|
|
| 80 |
//no standard messages expected: do nothing |
|
| 81 |
} |
|
| 82 |
} |
|
| 83 |
|
|
| 84 |
if (kbc_unsubscribe_int() != 0) { // Check if subscription worked
|
|
| 85 |
printf("Error unsubscribing int \n");
|
|
| 86 |
return 1; |
|
| 87 |
} |
|
| 88 |
|
|
| 89 |
return 0; |
|
| 37 | 90 |
} |
| 38 | 91 |
|
| 39 | 92 |
int(kbd_test_poll)() {
|
Also available in: Unified diff