Mercurial > lcfOS
annotate cos/kernel/keyboard.c @ 32:3a6a9b929db0
Added initial ramdisk and some virtual file system functions
| author | windel |
|---|---|
| date | Fri, 13 Jan 2012 18:18:17 +0100 |
| parents | d8627924d40d |
| children | 8012221dd740 |
| rev | line source |
|---|---|
| 24 | 1 #include "kernel.h" |
| 2 | |
| 3 static int shiftstate = 0; | |
| 4 static volatile uint8_t charAvail = 0; | |
| 5 static volatile char kbdchar = ' '; | |
| 6 | |
|
32
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changeset
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7 // TODO: move to user land: |
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8 static char keymap[128] = |
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3a6a9b929db0
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9 { |
| 24 | 10 '?','?','1','2', '3', '4', '5','6', '7', '8','9', '0', '-','=', 0xe, '?', |
| 11 'q','w','e','r', 't', 'y', 'u','i', 'o', 'p','[', ']', '\n','?', 'a', 's', | |
| 12 'd','f','g','h', 'j', 'k', 'l',';', '\'', '?','?', '?', 'z','x', 'c', 'v', | |
| 13 'b','n','m',',', '.', '/', '?','?', '?', ' ','?', '?', '?','?', '?', '?', | |
| 14 | |
| 15 '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', | |
| 16 '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', | |
| 17 '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', | |
| 18 '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?' | |
| 19 }; | |
| 20 | |
|
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21 static char keymapUPPER[128] = |
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22 { |
| 24 | 23 '?','?','!','@', '#', '$', '%','^', '&', '*','(', ')', '_','+', '?', '?', |
| 24 'Q','W','E','R', 'T', 'Y', 'U','I', 'O', 'P','{', '}', '|','?', 'A', 'S', | |
| 25 'D','F','G','H', 'J', 'K', 'L',':', '"', '?','?', '?', 'Z','X', 'C', 'V', | |
| 26 'B','N','M','<', '>', '?', '?','?', '?', ' ','?', '?', '?','?', '?', '?', | |
| 27 | |
| 28 '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', | |
| 29 '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', | |
| 30 '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?', | |
| 31 '?','?','?','?', '?', '?', '?','?', '?', '?','?', '?', '?','?', '?', '?' | |
| 32 }; | |
| 33 | |
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34 void keyboardDriverUpdate() |
| 24 | 35 { |
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32
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changeset
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36 unsigned char scancode = inb(0x60); |
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37 |
| 24 | 38 switch(scancode) { |
| 39 case 0x2a: | |
| 40 shiftstate = 1; | |
| 41 break; | |
| 42 case 0xaa: | |
| 43 shiftstate = 0; | |
| 44 break; | |
| 45 default: | |
| 46 if (scancode < 128) { | |
| 47 if (charAvail == 0) { | |
| 48 if (shiftstate == 0) { | |
| 49 kbdchar = keymap[scancode]; | |
| 50 } else { | |
| 51 kbdchar = keymapUPPER[scancode]; | |
| 52 } | |
| 53 | |
| 54 charAvail = 1; | |
| 55 } | |
| 56 } else { | |
| 57 // Key release | |
| 58 //printf("Unhandled scancode: 0x%x\n", scancode); | |
| 59 } | |
| 60 break; | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 char getChar() | |
| 65 { | |
| 66 while (charAvail == 0); | |
| 67 char c = kbdchar; | |
| 68 charAvail = 0; | |
| 69 return c; | |
| 70 } | |
| 71 | |
|
32
3a6a9b929db0
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windel
parents:
24
diff
changeset
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72 // Move to user code: |
| 24 | 73 void getline(char *buffer, int len) |
| 74 { | |
| 75 char c; | |
| 76 int i = 0; | |
| 77 while (i < len-1) { | |
| 78 c = getChar(); | |
| 79 //printf("%x", c); | |
| 80 if (c == '\n') { | |
| 81 // Enter | |
| 82 break; | |
| 83 } | |
| 84 if (c == 0x0e) | |
| 85 { | |
| 86 // Backspace | |
| 87 if (i>0) | |
| 88 { | |
| 89 int r, c; | |
| 90 get_cursor(&r, &c); | |
| 91 set_cursor(r, c - 1); | |
| 92 printf(" "); | |
| 93 set_cursor(r, c - 1); | |
| 94 i--; | |
| 95 } | |
| 96 continue; | |
| 97 } | |
| 98 buffer[i] = c; | |
| 99 printf("%c", c); | |
| 100 i++; | |
| 101 } | |
| 102 buffer[i] = 0; | |
| 103 } | |
| 104 |