Revision 16
added function 1 and 2, working
| mouse.c | ||
|---|---|---|
| 1 |
#include "mouse.c" |
|
| 1 |
#include "mouse.h" |
|
| 2 |
#include <lcom/lcf.h> |
|
| 2 | 3 |
|
| 3 | 4 |
uint8_t byte; |
| 5 |
int mouse_id=2; //KBD_AUX_IRQ is defined in interrupt.h in .minix-src folder |
|
| 4 | 6 |
|
| 5 | 7 |
int (util_sys_inb)(int port, uint8_t *value) { //transform 8 bit into 32 bit
|
| 6 | 8 |
|
| ... | ... | |
| 19 | 21 |
} |
| 20 | 22 |
|
| 21 | 23 |
void (mouse_ih)(void){
|
| 24 |
//kbc_read_out_buf(&byte); |
|
| 22 | 25 |
uint8_t status_reg; |
| 23 | 26 |
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if(util_sys_inb(STATUS_REG,&status_reg)!=0){ //checks if there is an error
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printf("Error reading status register in the keyboard interruption\n");
|
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return; |
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for(int i=0; i<10;i++){
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if(util_sys_inb(STATUS_REG,&status_reg)!=0){ //checks if there is an error
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printf("Error reading status register in the mouse interruption\n");
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return; |
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} |
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if((status_reg & OUTPUT_BUF)!=0){
|
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if((status_reg & (STAT_REG_PAR|STAT_REG_TIMEOUT))!=0){ //checks if there is a parity or timeout error (mask -> 0xC0, bit 7 and 6 set), checks if output buffer is empty
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printf("Parity/Timeout error or output buffer is empty or data coming from the mouse\n");
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return; |
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} |
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|
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if(util_sys_inb(OUTPUT_BUF,&byte)!=0){//checks if there is an error
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printf("Error reading output buffer in the mouse interruption\n");
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return; |
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} |
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|
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| 43 |
} |
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tickdelay(micros_to_ticks(DELAY_US)); |
|
| 27 | 45 |
} |
| 28 |
if(((status_reg & STAT_REG_OBF)==0) ||((status_reg&(STAT_REG_PAR|STAT_REG_TIMEOUT))!=0)){ //checks if there is a parity or timeout error (mask -> 0xC0, bit 7 and 6 set), checks if output buffer is empty
|
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printf("Parity/Timeout error or output buffer is empty or data coming from the mouse\n");
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return; |
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} |
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if(util_sys_inb(OUTPUT_BUF,&byte)!=0){//checks if there is an error
|
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printf("Error reading output buffer in the keyboard interruption\n");
|
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return; |
|
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} |
|
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return; |
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| 36 | 47 |
|
| 37 | 48 |
} |
| 38 | 49 |
|
| 39 | 50 |
int (mouse_subscribe_int)(uint8_t *bit_no) { //similar function to that of timer_subscribe_int
|
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*bit_no = BIT(keyboard_id);
|
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if(sys_irqsetpolicy(KEYBOARD_IRQ,(IRQ_REENABLE|IRQ_EXCLUSIVE),&keyboard_id)==1){ //operation to subscribe int
|
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*bit_no = BIT(mouse_id);
|
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if(sys_irqsetpolicy(12,(IRQ_REENABLE|IRQ_EXCLUSIVE),&mouse_id)==1){ //operation to subscribe int
|
|
| 42 | 53 |
printf("Error subscribing int\n");
|
| 43 | 54 |
return 1; |
| 44 | 55 |
} |
| ... | ... | |
| 46 | 57 |
} |
| 47 | 58 |
|
| 48 | 59 |
int (mouse_unsubscribe_int)() { //similar function to that of timer_unsubscribe_int
|
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if(sys_irqrmpolicy(&keyboard_id)==1){
|
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if(sys_irqrmpolicy(&mouse_id)==1){
|
|
| 50 | 61 |
printf("Error unsubscribing int\n");
|
| 51 | 62 |
return 1; |
| 52 | 63 |
} |
| ... | ... | |
| 92 | 103 |
pp->lb=false; |
| 93 | 104 |
} |
| 94 | 105 |
|
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if((pp->bytes[0]&0x20)==0x20){ //it means y_delta is negative
|
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pp->delta_y=~pp->bytes[2]; |
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pp->delta_y+=1; |
|
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if((pp->bytes[0] &0x10)==0x10){
|
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pp->delta_x = pp->bytes[1] -256; |
|
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} |
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else{
|
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pp->delta_x = pp->bytes[1]; |
|
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} |
|
| 98 | 112 |
|
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if((pp->bytes[0]&0x20)==0x20){
|
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pp->delta_y = pp->bytes[2] -256; |
|
| 99 | 115 |
} |
| 100 | 116 |
else{
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pp->delta_y=pp->bytes[2];
|
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pp->delta_y = pp->bytes[2];
|
|
| 102 | 118 |
} |
| 103 | 119 |
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if((pp->bytes[0]&0x10)==0x10){ //it means x_delta is negative
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pp->delta_x=~pp->bytes[1]; |
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pp->delta_x+=1; |
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return 0; |
|
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} |
|
| 107 | 122 |
|
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/*int kbc_write(int port, uint8_t cmd) {
|
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uint8_t status; |
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int retry = 0; |
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|
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while (retry < 10) {
|
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if(util_sys_inb(STATUS_REG, &status)!=0){
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printf("Error in kbc_write");
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return 1; |
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} |
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|
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//... Checking if IN_BUF is OK to write to |
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if ((status & 0x02)!=0) {
|
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//.... Writing the command |
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if (sys_outb(port, cmd)!=0) {
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printf("Error");
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return 1; |
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} |
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return 0; |
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} |
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|
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//tickdelay(micros_to_ticks(DELAY_US)); // IF NOT EMPTY wait for IN_BUF to be empty |
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retry++; |
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} |
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|
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return 1; |
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} |
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|
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int read_out_buf(uint8_t *content) {
|
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uint8_t status; |
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uint8_t content8; // 8-bit content |
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int retry = 0; |
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|
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while (retry < 4) {
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util_sys_inb(STATUS_REG, &status); |
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|
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//... Checking if there is any error and if the byte came from AUX |
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if (((status_reg & STAT_REG_OBF)==0) ||((status_reg&(STAT_REG_PAR|STAT_REG_TIMEOUT))!=0)||((status_reg&STAT_REG_AUX)==0)) { // Parity or Timeout error, invalid data
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return 1; |
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} |
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|
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//... Checking if OUT_BUF is FULL to read |
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if (status & STAT_REG_OBF) {
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//... Reading the Output Buffer |
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if (UTIL_sys_inb(OUTPUT_BUF, &content8)) {
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return 1; |
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} |
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// The information in address content now contains content32 in 8-bit |
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*content = (uint8_t)content8; |
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return 0; |
|
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} |
|
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|
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tickdelay(micros_to_ticks(DELAY_US)); // IF NOT EMPTY wait for IN_BUF to be empty |
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retry++; |
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} |
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|
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return 1; |
|
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} |
|
| 180 |
|
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| 181 |
|
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| 182 |
int kbc_write_mouse_command(uint8_t cmd) {
|
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| 183 |
uint8_t response; |
|
| 184 |
|
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if(kbc_write(KBC_CMD_REG, 0xD4)!=0){
|
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printf("Error");
|
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| 187 |
return 1; |
|
| 108 | 188 |
} |
| 109 |
else{
|
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pp->delta_y=pp->bytes[1]; |
|
| 189 |
if(kbc_write(INPUT_BUF, cmd)!=0){
|
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printf("Error");
|
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| 191 |
return 1; |
|
| 111 | 192 |
} |
| 112 |
} |
|
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tickdelay(micros_to_ticks(DELAY_US)); |
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if(kbc_read_out_buf(&response)!=0){
|
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printf("Error");
|
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return 1; |
|
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} |
|
| 198 |
|
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// Checking if invalid byte |
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if (response != 0xFA) {
|
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// repeat process if invalid |
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kbc_write(KBC_CTRL_REG, 0xD4); |
|
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kbc_write(INPUT_BUF, cmd); |
|
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tickdelay(micros_to_ticks(DELAY_US)); |
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kbc_read_out_buf(&response); |
|
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// Checking if second consecutive invalid byte |
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if (response == 0xFC){
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return 1; |
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} |
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} |
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|
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return 0; |
|
| 213 |
}*/ |
|
| 214 |
|
|
| 215 |
int write_cmd_mouse(uint8_t cmd) |
|
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{
|
|
| 217 |
uint8_t status_reg, ack; |
|
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|
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do |
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{
|
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if (util_sys_inb(STATUS_REG, &status_reg) != 0){
|
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return 1; |
|
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} |
|
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|
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| 225 |
if ((status_reg & STAT_REG_IBF) == 0){
|
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if (sys_outb(KBC_CMD_REG, 0xD4) != 0){ //0xD4 -> code to write byte to mouse
|
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return 1; |
|
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} |
|
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} |
|
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else |
|
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continue; |
|
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|
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if (util_sys_inb(STATUS_REG, &status_reg) != 0){
|
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return 1; |
|
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} |
|
| 236 |
|
|
| 237 |
if ((status_reg & STAT_REG_IBF) == 0){
|
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| 238 |
if (sys_outb(OUTPUT_BUF, cmd) != 0){
|
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return 1; |
|
| 240 |
} |
|
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} |
|
| 242 |
else |
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| 243 |
continue; |
|
| 244 |
|
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| 245 |
tickdelay(micros_to_ticks(DELAY_US)); |
|
| 246 |
|
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| 247 |
if (util_sys_inb(INPUT_BUF, &ack) != 0){
|
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| 248 |
return 1; |
|
| 249 |
} |
|
| 250 |
|
|
| 251 |
} while (ack != 0xFA); // 0xFA -> mask that checks if everything is ok |
|
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|
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return 0; |
|
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} |
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