diff options
Diffstat (limited to 'src/c/keyboard.c')
| -rw-r--r-- | src/c/keyboard.c | 150 |
1 files changed, 85 insertions, 65 deletions
diff --git a/src/c/keyboard.c b/src/c/keyboard.c index d082ec5..2218f09 100644 --- a/src/c/keyboard.c +++ b/src/c/keyboard.c @@ -28,6 +28,10 @@ void us_en_shift(char keymap[]); char charcode[256]; char shift_charcode[256]; bool ispressed[128]; +#define lshift 0x2A +#define rshift 0x36 +#define lctrl 0x1D +#define rctrl 0x1D void init_keyboard() { @@ -56,15 +60,15 @@ void enter() printf("\n"); if(buffer_index>0) { - tty(buffer[buffer_current]); - buffer_size[buffer_current]=buffer_index; - if(buffer_current==buffer_all) buffer_current=(++buffer_all); - else - { - for(size_t i=0;i<BUFFER_SIZE;i++) buffer[buffer_all][i]='\0'; - buffer_current=buffer_all; - } - buffer_index=0; + tty(buffer[buffer_current]); + buffer_size[buffer_current]=buffer_index; + if(buffer_current==buffer_all) buffer_current=(++buffer_all); + else + { + for(size_t i=0;i<BUFFER_SIZE;i++) buffer[buffer_all][i]='\0'; + buffer_current=buffer_all; + } + buffer_index=0; } prompt(); return; @@ -80,37 +84,34 @@ void keyup() { if(buffer_current>0) { - buffer_size[buffer_current]=buffer_index; - for(size_t i=0;i<buffer_index;i++) deletelast(); - buffer_current--; - buffer_index=buffer_size[buffer_current]; - printf("%s",buffer[buffer_current]); + buffer_size[buffer_current]=buffer_index; + for(size_t i=0;i<buffer_index;i++) deletelast(); + buffer_current--; + buffer_index=buffer_size[buffer_current]; + printf("%s",buffer[buffer_current]); } } + void keydown() { if(buffer_current<buffer_all) { - buffer_size[buffer_current]=buffer_index; - for(size_t i=0;i<buffer_index;i++) deletelast(); - buffer_current++; - buffer_index=buffer_size[buffer_current]; - printf("%s",buffer[buffer_current]); + buffer_size[buffer_current]=buffer_index; + for(size_t i=0;i<buffer_index;i++) deletelast(); + buffer_current++; + buffer_index=buffer_size[buffer_current]; + printf("%s",buffer[buffer_current]); } } + void keyleft() { - } + void keyright() { - } -#define lshift ispressed[0x2A] -#define rshift ispressed[0x36] -#define lctrl ispressed[0x1D] - void keyboard_handler() { ioport_out(PIC1_COMMAND_PORT, 0x20); @@ -118,45 +119,64 @@ void keyboard_handler() if (status & 0x1) { - uint8_t keycode = ioport_in(KEYBOARD_DATA_PORT); -// printf("%d\n",keycode); - if(keycode<0x80) - { - ispressed[keycode]=1; - if(keycode==0x0E) backspace(); - else if(keycode==0x1C) enter(); - else if(keycode==0x39) space(); - else if(keycode==72) keyup(); - else if(keycode==80) keydown(); - else if(keycode==75) keyleft(); - else if(keycode==77) keyright(); - else - { - char c=charcode[keycode]; - if(c!=' ') - { - if(lctrl) - { - if(c=='l') - { - clear(); - prompt(); - printf("%s",buffer[buffer_current]); - return; - } - } - if(lshift||rshift) - { - c=shift_charcode[keycode]; - } - buffer[buffer_current][buffer_index++]=c; - printf("%c",c); - } - } - } - else - { - ispressed[keycode-0x80]=0; - } + uint8_t keycode = ioport_in(KEYBOARD_DATA_PORT); + if(keycode<0x80) + { + char c=charcode[keycode]; + ispressed[keycode]=1; + // printf("%d ",&keycode); + + switch(keycode) + { + case 0x0E: + backspace(); + break; + case 0x1C: + enter(); + break; + case 0x39: + space(); + break; + case 72: + keyup(); + break; + case 80: + keydown(); + break; + case 75: + keyleft(); + break; + case 77: + keyright(); + break; + + default: + if(c!=' ') + { + if(ispressed[lctrl]||ispressed[rctrl]) + { + if(c=='l') + { + clear(); + prompt(); + printf("%s",buffer[buffer_current]); + return; + } + } + if(ispressed[lshift]||ispressed[rshift]) + { + c=shift_charcode[keycode]; + } + buffer[buffer_current][buffer_index++]=c; + printf("%c",c); + } + break; + } + + } + else + { + ispressed[keycode-0x80]=0; + } } } |