Revision 12
All functions working, errors dealt with
| lab3.c | ||
|---|---|---|
| 3 | 3 |
#include <lcom/lab3.h> |
| 4 | 4 |
#include <stdbool.h> |
| 5 | 5 |
#include <stdint.h> |
| 6 |
|
|
| 6 |
#include "timer.h" |
|
| 7 | 7 |
#include "keyboard.h" |
| 8 | 8 |
|
| 9 | 9 |
|
| ... | ... | |
| 33 | 33 |
|
| 34 | 34 |
extern uint8_t scan_code; |
| 35 | 35 |
extern uint32_t cnt; |
| 36 |
extern int count; |
|
| 36 | 37 |
|
| 37 | 38 |
int(kbd_test_scan)() {
|
| 39 |
|
|
| 38 | 40 |
int r, ipc_status; |
| 39 | 41 |
uint8_t keyboard_irq, size, bytes[2]; //size of scancode can be 2 byte long |
| 40 | 42 |
message msg; |
| 41 | 43 |
bool make=false; //to check if code is make or break |
| 42 | 44 |
|
| 43 |
if(kbc_subscribe_int(&keyboard_irq)==1){
|
|
| 45 |
if(kbc_subscribe_int(&keyboard_irq)!=0){ //check if subscription worked
|
|
| 44 | 46 |
printf("Error subscribing int\n");
|
| 45 | 47 |
return 1; |
| 46 | 48 |
} |
| 47 | 49 |
|
| 48 |
while(scan_code!=ESC_BREAK){ //looping until scan_code is the breakcode of ESC key
|
|
| 50 |
while(scan_code!=ESC_BREAK){ //looping until scan_code is the breakcode of ESC key
|
|
| 51 |
|
|
| 49 | 52 |
if ((r = driver_receive(ANY, &msg, &ipc_status))==1){
|
| 50 | 53 |
printf("driver_receive failed with: %d",r);
|
| 51 | 54 |
continue; |
| 52 | 55 |
} |
| 53 |
if (is_ipc_notify(ipc_status)){ //received notification
|
|
| 56 |
if (is_ipc_notify(ipc_status)){ //received notification
|
|
| 54 | 57 |
switch (_ENDPOINT_P(msg.m_source)){
|
| 55 |
case HARDWARE: //hardware interrupt notification |
|
| 56 |
if (msg.m_notify.interrupts &keyboard_irq){ // subscribed interrupt
|
|
| 58 |
case HARDWARE: //hardware interrupt notification
|
|
| 59 |
if (msg.m_notify.interrupts &keyboard_irq){ // subscribed interrupt
|
|
| 57 | 60 |
|
| 58 | 61 |
kbc_ih(); |
| 59 | 62 |
bytes[0]=scan_code; |
| ... | ... | |
| 67 | 70 |
} |
| 68 | 71 |
|
| 69 | 72 |
if (scan_code & MAKE_CODE){ //checks if code is make or break
|
| 70 |
make = false; //break code
|
|
| 73 |
make = false; //is break code
|
|
| 71 | 74 |
} |
| 72 | 75 |
else {
|
| 73 |
make = true; //make code
|
|
| 76 |
make = true; //is make code
|
|
| 74 | 77 |
} |
| 75 | 78 |
|
| 76 |
if(kbd_print_scancode(make, size, bytes)!=0){ //prints the code
|
|
| 79 |
if(kbd_print_scancode(make, size, bytes)!=0){ //prints the code
|
|
| 77 | 80 |
printf("Error printing scan code\n");
|
| 78 | 81 |
return 1; |
| 79 | 82 |
} |
| 80 | 83 |
} |
| 81 | 84 |
break; |
| 82 | 85 |
default: |
| 83 |
break; //no other notifications expected: do nothing
|
|
| 86 |
break; //no other notifications expected: do nothing |
|
| 84 | 87 |
} |
| 85 | 88 |
} |
| 86 |
else { //received a standard message, not a notification
|
|
| 89 |
else { //received a standard message, not a notification
|
|
| 87 | 90 |
//no standard messages expected: do nothing |
| 88 | 91 |
} |
| 89 | 92 |
} |
| 90 | 93 |
|
| 91 |
if (kbc_unsubscribe_int() != 0) { // Check if subscription worked
|
|
| 94 |
if (kbc_unsubscribe_int() != 0) { //check if unsubscription worked
|
|
| 92 | 95 |
printf("Error unsubscribing int \n");
|
| 93 | 96 |
return 1; |
| 94 | 97 |
} |
| 95 | 98 |
|
| 96 |
if(kbd_print_no_sysinb(cnt)!=0){
|
|
| 99 |
if(kbd_print_no_sysinb(cnt)!=0){ //prints the number of sys calls
|
|
| 97 | 100 |
printf("Error printing number of sys used\n");
|
| 98 | 101 |
return 1; |
| 99 | 102 |
} |
| ... | ... | |
| 105 | 108 |
} |
| 106 | 109 |
|
| 107 | 110 |
int(kbd_test_poll)() {
|
| 111 |
|
|
| 108 | 112 |
uint8_t status, size, bytes[2]; //size of scancode can be 2 byte long |
| 109 | 113 |
bool make=false; //to check if code is make or break |
| 110 | 114 |
|
| 111 |
while(scan_code!=ESC_BREAK){ //looping until scan_code is the breakcode of ESC key, can't do interruptions
|
|
| 115 |
while(scan_code!=ESC_BREAK){ //looping until scan_code is the breakcode of ESC key, can't do interruptions
|
|
| 116 |
|
|
| 112 | 117 |
if(util_sys_inb(STATUS_REG, &status)!=0){ //checks the status register
|
| 113 | 118 |
printf("Error reading status register\n");
|
| 114 | 119 |
return 1; |
| 115 | 120 |
} |
| 116 | 121 |
|
| 117 |
if ((status & STAT_REG_OBF) && !(status & STAT_REG_AUX) && !(status & STAT_REG_PAR || status & STAT_REG_TIMEOUT)) { //checks if there is no parity ot timeout error, if the output buffer is full and if there is mouse data
|
|
| 122 |
if ((status & STAT_REG_OBF) && !(status & STAT_REG_AUX) && !(status & STAT_REG_PAR || status & STAT_REG_TIMEOUT)) { //checks if there is no parity ot timeout error, if the output buffer is full and if there is mouse data
|
|
| 118 | 123 |
|
| 119 |
if(util_sys_inb(OUTPUT_BUF, &scan_code)!=0){
|
|
| 124 |
if(util_sys_inb(OUTPUT_BUF, &scan_code)!=0){ //reads output buffer
|
|
| 120 | 125 |
printf("Error reading output buffer\n");
|
| 121 | 126 |
return 1; |
| 122 | 127 |
} |
| ... | ... | |
| 149 | 154 |
} |
| 150 | 155 |
} |
| 151 | 156 |
|
| 152 |
if(kbd_print_no_sysinb(cnt)!=0){
|
|
| 157 |
if(kbd_print_no_sysinb(cnt)!=0){ //prints the number of sys calls
|
|
| 153 | 158 |
printf("Error printing number of sys used\n");
|
| 154 | 159 |
return 1; |
| 155 | 160 |
} |
| 156 | 161 |
|
| 157 |
if(enable_interrupt()!=0){
|
|
| 158 |
printf("Coulnd re-enable the interruptions\n");
|
|
| 162 |
if(reenable_interrupt()!=0){ //re-enables interruptions
|
|
| 163 |
printf("Couldn't re-enable the interruptions\n");
|
|
| 159 | 164 |
return 1; |
| 160 | 165 |
|
| 161 | 166 |
} |
| ... | ... | |
| 165 | 170 |
return 0; |
| 166 | 171 |
} |
| 167 | 172 |
|
| 168 |
int(kbd_test_timed_scan)(uint8_t n) {
|
|
| 169 |
/* To be completed by the students */ |
|
| 170 |
printf("%s is not yet implemented!\n", __func__);
|
|
| 171 | 173 |
|
| 172 |
return 1; |
|
| 174 |
int(kbd_test_timed_scan)(uint8_t n) { //similar function to that of test_time_scan but with timer interruptions
|
|
| 175 |
|
|
| 176 |
if(n<0){ //checks if n is a valid input
|
|
| 177 |
printf("Invalid time\n");
|
|
| 178 |
return 1; |
|
| 179 |
} |
|
| 180 |
|
|
| 181 |
int r, ipc_status; |
|
| 182 |
uint8_t keyboard_irq, size, bytes[2], timer_irq; //size of scancode can be 2 byte long |
|
| 183 |
message msg; |
|
| 184 |
bool make=false; //to check if code is make or break |
|
| 185 |
|
|
| 186 |
if(timer_subscribe_int(&timer_irq)!=0){
|
|
| 187 |
printf("Error subscribing int (timer)\n");
|
|
| 188 |
return 1; |
|
| 189 |
} |
|
| 190 |
|
|
| 191 |
if(kbc_subscribe_int(&keyboard_irq)!=0){
|
|
| 192 |
printf("Error subscribing int (keyboard)\n");
|
|
| 193 |
return 1; |
|
| 194 |
} |
|
| 195 |
|
|
| 196 |
while((scan_code!=ESC_BREAK)&&(count/sys_hz()<n)){ //looping until scan_code is the breakcode of ESC key or until a command is issued within the time interval
|
|
| 197 |
if ((r = driver_receive(ANY, &msg, &ipc_status))==1){
|
|
| 198 |
printf("driver_receive failed with: %d",r);
|
|
| 199 |
continue; |
|
| 200 |
} |
|
| 201 |
if (is_ipc_notify(ipc_status)){ //received notification
|
|
| 202 |
switch (_ENDPOINT_P(msg.m_source)){
|
|
| 203 |
case HARDWARE: //hardware interrupt notification |
|
| 204 |
if (msg.m_notify.interrupts &keyboard_irq){ // subscribed interrupt (keyboard)
|
|
| 205 |
|
|
| 206 |
kbc_ih(); |
|
| 207 |
bytes[0]=scan_code; |
|
| 208 |
bytes[1]=scan_code; |
|
| 209 |
|
|
| 210 |
if(bytes[0]==TWO_BYTE_SCANCODE){
|
|
| 211 |
size=2; |
|
| 212 |
} |
|
| 213 |
else{
|
|
| 214 |
size=1; |
|
| 215 |
} |
|
| 216 |
|
|
| 217 |
if (scan_code & MAKE_CODE){ //checks if code is make or break
|
|
| 218 |
make = false; //break code |
|
| 219 |
} |
|
| 220 |
else {
|
|
| 221 |
make = true; //make code |
|
| 222 |
} |
|
| 223 |
|
|
| 224 |
if(kbd_print_scancode(make, size, bytes)!=0){ //prints the code
|
|
| 225 |
printf("Error printing scan code\n");
|
|
| 226 |
return 1; |
|
| 227 |
} |
|
| 228 |
count=0; //resets counter, since a keyboard interruption has ocurred |
|
| 229 |
} |
|
| 230 |
else if (msg.m_notify.interrupts &timer_irq) { // subscribed interrupt (timer)
|
|
| 231 |
timer_int_handler(); //if a timer interruption occurs increment timer |
|
| 232 |
} |
|
| 233 |
break; |
|
| 234 |
default: |
|
| 235 |
break; //no other notifications expected: do nothing |
|
| 236 |
} |
|
| 237 |
} |
|
| 238 |
else { //received a standard message, not a notification
|
|
| 239 |
//no standard messages expected: do nothing |
|
| 240 |
} |
|
| 241 |
} |
|
| 242 |
|
|
| 243 |
if (kbc_unsubscribe_int() != 0) { //check if unsubscription worked
|
|
| 244 |
printf("Error unsubscribing int \n");
|
|
| 245 |
return 1; |
|
| 246 |
} |
|
| 247 |
|
|
| 248 |
if(timer_unsubscribe_int()!=0){ //check if unsubscription worked
|
|
| 249 |
printf("Error unsubscribing int\n");
|
|
| 250 |
return 1; |
|
| 251 |
} |
|
| 252 |
|
|
| 253 |
if(kbd_print_no_sysinb(cnt)!=0){ //prints the number of sys calls
|
|
| 254 |
printf("Error printing number of sys used\n");
|
|
| 255 |
return 1; |
|
| 256 |
} |
|
| 257 |
|
|
| 258 |
cnt=0; |
|
| 259 |
scan_code=0; |
|
| 260 |
|
|
| 261 |
return 0; |
|
| 173 | 262 |
} |
Also available in: Unified diff