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| 1 | //$Id: ism_keyboard.lib,v 1.5 2008-09-05 11:45:22 charlie Exp $ |
| 2 | /* |
| 3 | $Log: ism_keyboard.lib,v $ |
| 4 | |
| 5 | */ |
| 6 | |
| 7 | /*** BeginHeader */ |
| 8 | |
| 9 | #ifndef __ISM_KEYBOARD_4711_ |
| 10 | #define __ISM_KEYBOARD_4711_ |
| 11 | |
| 12 | /*** EndHeader */ |
| 13 | |
| 14 | /*** BeginHeader |
| 15 | |
| 16 | InitializeKbd, |
| 17 | KeyboardScan, |
| 18 | SetKeysource, |
| 19 | GetKeyCode, |
| 20 | GetKeyEdgeFlag, |
| 21 | GetFastFlag, |
| 22 | TestChord, |
| 23 | KbdOff, |
| 24 | KbdOn, |
| 25 | StdioScan |
| 26 | |
| 27 | */ |
| 28 | |
| 29 | // Global constants for keyboard scanner ************************************************ |
| 30 | |
| 31 | #define CONSOLE_KEYS 1 |
| 32 | #define AUTOPAK_KEYS 2 |
| 33 | #define KEY_LAG 300 |
| 34 | #define KEYSOURCE_CONSOLE CONSOLE_KEYS |
| 35 | #define KEYSOURCE_AUTOPAK AUTOPAK_KEYS |
| 36 | #define KEYSOURCE_BOTH (CONSOLE_KEYS | AUTOPAK_KEYS) |
| 37 | |
| 38 | void InitializeKbd(int mask); //initialization function |
| 39 | void KeyboardScan (); //signal program to presence of active key |
| 40 | int GetKeyCode(); |
| 41 | int GetKeyEdgeFlag(); |
| 42 | int GetFastFlag(); |
| 43 | void TestChord(int *clearFlag); |
| 44 | void KbdOff(); |
| 45 | void KbdOn(); |
| 46 | void StdioScan(); |
| 47 | |
| 48 | /*** EndHeader */ |
| 49 | |
| 50 | //Local constants for keyboard scanner ************************************************** |
| 51 | /* |
| 52 | #define PB1 1 |
| 53 | #define PB2 3 |
| 54 | #define PB3 5 |
| 55 | #define PB4 7 |
| 56 | #define PB5 6 |
| 57 | #define PB6 0 |
| 58 | #define PB7 2 |
| 59 | #define PB8 4 |
| 60 | */ |
| 61 | //Function prototypes ******************************************************************* |
| 62 | |
| 63 | void KbdScan (); //scan keyboard for active key |
| 64 | |
| 65 | //Local keyboard handler variables ****************************************************** |
| 66 | |
| 67 | int keyCode; //current active key |
| 68 | int keyEdgeFlag; //first detection of active key |
| 69 | int kbdOn; |
| 70 | Ms Lag; |
| 71 | int fastFlag; |
| 72 | |
| 73 | |
| 74 | //Scan keyboard for active key ********************************************************** |
| 75 | |
| 76 | void KbdScan () |
| 77 | { |
| 78 | int result; |
| 79 | int mask; |
| 80 | int i; |
| 81 | |
| 82 | result = 0; |
| 83 | |
| 84 | result = ~RdPortI(PADR)& 0xff; |
| 85 | |
| 86 | if (result > 0) |
| 87 | { |
| 88 | MsDelay (20); |
| 89 | if (result != (~RdPortI(PADR)& 0xff)) |
| 90 | result = 0; |
| 91 | } |
| 92 | if (result > 0 && !keyEdgeFlag) |
| 93 | { |
| 94 | mask = 1; |
| 95 | for (i = 1 ; i <= N_PB ; i++) |
| 96 | { |
| 97 | if (result & mask) |
| 98 | { |
| 99 | if (MS_TIMER - Lag > KEY_LAG) |
| 100 | { |
| 101 | keyEdgeFlag = 1; |
| 102 | Lag = MS_TIMER; |
| 103 | if ((keyCode == UPPB || keyCode == DOWNPB) && i == keyCode) |
| 104 | fastFlag = 10; |
| 105 | else |
| 106 | fastFlag = 1; |
| 107 | keyCode = i; |
| 108 | } |
| 109 | else |
| 110 | keyEdgeFlag = 0; |
| 111 | //printf("Push Button - %d\n",keyCode); |
| 112 | } |
| 113 | mask <<= 1; |
| 114 | } |
| 115 | |
| 116 | } |
| 117 | else |
| 118 | { |
| 119 | keyCode = NONEPB; |
| 120 | fastFlag = 1; |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | // Test chord ***************************************************************** |
| 125 | |
| 126 | void TestChord(int *clearFlag) |
| 127 | { |
| 128 | int result; |
| 129 | result = 0; |
| 130 | *clearFlag = 0; |
| 131 | result = ~RdPortI(PADR)& 0xff; |
| 132 | if (result & 0x80 && result & 0x04) |
| 133 | *clearFlag = 1; |
| 134 | } |
| 135 | |
| 136 | void KbdOff() {kbdOn = 0;} |
| 137 | void KbdOn() {kbdOn = 1;} |
| 138 | |
| 139 | //Signal program to presence of active key ********************************************** |
| 140 | |
| 141 | void KeyboardScan () |
| 142 | { |
| 143 | KbdScan (); |
| 144 | } |
| 145 | |
| 146 | void InitializeKbd(int mask) |
| 147 | { |
| 148 | WrPortI(SPCR, NULL, 0x80); // port a input |
| 149 | //SetKeysource(mask); |
| 150 | kbdOn = 1; |
| 151 | keyCode = NONEPB; //current active key |
| 152 | keyEdgeFlag = 0; //first detection of active key |
| 153 | Lag = MS_TIMER; |
| 154 | fastFlag = 1; |
| 155 | } |
| 156 | |
| 157 | int GetFastFlag() {return fastFlag;} |
| 158 | int GetKeyCode() {return keyCode;} |
| 159 | int GetKeyEdgeFlag() |
| 160 | { |
| 161 | int result; |
| 162 | |
| 163 | result = keyEdgeFlag; |
| 164 | keyEdgeFlag = 0; |
| 165 | return result; |
| 166 | } |
| 167 | |
| 168 | // Stdio key scan for simulation *********************************************** |
| 169 | void StdioScan() |
| 170 | { |
| 171 | char keyboard[8]; |
| 172 | char temp[8]; |
| 173 | char Action; |
| 174 | int chnl; |
| 175 | int value; |
| 176 | |
| 177 | if (kbhit()) |
| 178 | { |
| 179 | // Command Structure |
| 180 | // [Command Code][LDN Channel][Pressure] |
| 181 | // Command Code: P, S, M |
| 182 | // LDN Channel: 1-4 |
| 183 | // Pressure: PSI * 100, eg 22.00 * 100 = 2200 |
| 184 | |
| 185 | // Parse command |
| 186 | gets(keyboard); |
| 187 | Action = keyboard[0]; |
| 188 | strncpy(temp, &keyboard[1], 1); |
| 189 | chnl = atoi(temp) - 1; |
| 190 | strncpy(temp, &keyboard[2], 5); |
| 191 | value = atoi(temp); |
| 192 | |
| 193 | |
| 194 | } |
| 195 | } |
| 196 | //End of keyboard handler *************************************************************** |
| 197 | |
| 198 | /*** BeginHeader */ |
| 199 | |
| 200 | #endif |
| 201 | |
| 202 | /*** EndHeader */ |