Mercurial > lcfOS
view cos/kernel/keyboard.c @ 180:25a0753da4cf
Re-organized files
author | Windel Bouwman |
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date | Thu, 09 May 2013 17:35:19 +0200 |
parents | 8012221dd740 |
children |
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#include "kernel.h" static int shiftstate = 0; static volatile uint8_t charAvail = 0; static volatile char kbdchar = ' '; // TODO: move to user land: static char keymap[128] = { '?','?','1','2', '3', '4', '5','6', '7', '8','9', '0', '-','=', 0xe, '?', 'q','w','e','r', 't', 'y', 'u','i', 'o', 'p','[', ']', '\n','?', 'a', 's', 'd','f','g','h', 'j', 'k', 'l',';', '\'', '?','?', '?', 'z','x', 'c', 'v', 'b','n','m',',', '.', '/', '?','?', '?', ' ','?', '?', '?','?', '?', '?', '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?' }; static char keymapUPPER[128] = { '?','?','!','@', '#', '$', '%','^', '&', '*','(', ')', '_','+', '?', '?', 'Q','W','E','R', 'T', 'Y', 'U','I', 'O', 'P','{', '}', '|','?', 'A', 'S', 'D','F','G','H', 'J', 'K', 'L',':', '"', '?','?', '?', 'Z','X', 'C', 'V', 'B','N','M','<', '>', '?', '?','?', '?', ' ','?', '?', '?','?', '?', '?', '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?' }; void keyboard_init() { shiftstate = 0; charAvail = 0; } void keyboardDriverUpdate() { unsigned char scancode = inb(0x60); switch(scancode) { case 0x2a: shiftstate = 1; break; case 0xaa: shiftstate = 0; break; default: if (scancode < 128) { if (charAvail == 0) { if (shiftstate == 0) { kbdchar = keymap[scancode]; } else { kbdchar = keymapUPPER[scancode]; } charAvail = 1; } } else { // Key release //printf("Unhandled scancode: 0x%x\n", scancode); } break; } } char getChar() { while (charAvail == 0); char c = kbdchar; charAvail = 0; return c; } // Move to user code: void getline(char *buffer, int len) { char c; int i = 0; while (i < len-1) { c = getChar(); //printf("%x", c); if (c == '\n') { // Enter break; } if (c == 0x0e) { // Backspace if (i>0) { int r, c; get_cursor(&r, &c); set_cursor(r, c - 1); printf(" "); set_cursor(r, c - 1); i--; } continue; } buffer[i] = c; printf("%c", c); i++; } buffer[i] = 0; }