Mercurial > louis > kiibohd-controller

annotate Scan/MBC-55X/scan_loop.c @ 412:e7a3be42ae1e

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Debug code for interconnect cable debugging
author Jacob Alexander <haata@kiibohd.com>
date Sat, 20 Feb 2016 13:27:49 -0800
parents 9afed592bcb5
children 48ede6680396
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1 /* Copyright (C) 2013,2014 by Jacob Alexander
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2 *
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3 * Permission is hereby granted, free of charge, to any person obtaining a copy
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4 * of this software and associated documentation files (the "Software"), to deal
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5 * in the Software without restriction, including without limitation the rights
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6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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7 * copies of the Software, and to permit persons to whom the Software is
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8 * furnished to do so, subject to the following conditions:
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9 *
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10 * The above copyright notice and this permission notice shall be included in
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11 * all copies or substantial portions of the Software.
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12 *
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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19 * THE SOFTWARE.
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20 */
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21
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22 // ----- Includes -----
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23
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24 // Compiler Includes
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25 #include <Lib/ScanLib.h>
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26
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27 // Project Includes
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28 #include <led.h>
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29 #include <macro.h>
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30 #include <print.h>
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31
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32 // Local Includes
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33 #include "scan_loop.h"
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34
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35
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36
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37 // ----- Defines -----
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38
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39
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40 // ----- Macros -----
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41
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42
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43
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44 // ----- Variables -----
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45
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46 // Buffer used to inform the macro processing module which keys have been detected as pressed
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47 volatile uint8_t KeyIndex_Buffer[KEYBOARD_BUFFER];
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48 volatile uint8_t KeyIndex_BufferUsed;
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51
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52 // ----- Function Declarations -----
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53
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54 void processKeyValue( uint8_t valueType );
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55 void removeKeyValue( uint8_t keyValue );
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56
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58
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59 // ----- Interrupt Functions -----
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60
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61 // UART Receive Buffer Full Interrupt
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62 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR
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63 ISR(USART1_RX_vect)
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64 #elif defined(_mk20dx128_) || defined(_mk20dx256_) // ARM
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65 void uart0_status_isr(void)
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66 #endif
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67 {
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68 cli(); // Disable Interrupts
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69
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70 // Variable for UART data read
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71 uint8_t keyValue = 0x00;
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72
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73 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR
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74 keyValue = UDR1;
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75 #elif defined(_mk20dx128_) || defined(_mk20dx256_) // ARM
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76 // UART0_S1 must be read for the interrupt to be cleared
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77 if ( UART0_S1 & UART_S1_RDRF )
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78 {
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79 // Only doing single byte FIFO here
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80 keyValue = UART0_D;
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81 }
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82 #endif
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83
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84 // Debug
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85 char tmpStr[6];
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86 hexToStr( keyValue, tmpStr );
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87 dPrintStrs( tmpStr, " " ); // Debug
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88
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89 // Decipher scan value
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90 processKeyValue( keyValue );
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91
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92 sei(); // Re-enable Interrupts
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93 }
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96
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97 // ----- Functions -----
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98
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99 // Reset Keyboard
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100 void Scan_resetKeyboard( void )
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101 {
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102 // Not a calculated valued...
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103 _delay_ms( 50 );
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104
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105 KeyIndex_BufferUsed = 0;
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106 }
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107
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108 // Setup
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109 inline void Scan_setup()
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110 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR
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111 {
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112 // Setup the the USART interface for keyboard data input
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113
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114 // Setup baud rate - 1205 Baud
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115 // 16 MHz / ( 16 * Baud ) = UBRR
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116 // Baud: 1205 -> 16 MHz / ( 16 * 1205 ) = 829.8755
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117 // Thus baud setting = 830
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118 uint16_t baud = 830; // Max setting of 4095
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119 UBRR1H = (uint8_t)(baud >> 8);
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120 UBRR1L = (uint8_t)baud;
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121
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122 // Enable the receiver, and RX Complete Interrupt
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123 UCSR1B = 0x90;
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124
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125 // Set frame format: 8 data, 1 stop bit, even parity
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126 // Asynchrounous USART mode
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127 UCSR1C = 0x26;
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128
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129 // Reset the keyboard before scanning, we might be in a wierd state
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130 Scan_resetKeyboard();
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131 }
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132 #elif defined(_mk20dx128_) || defined(_mk20dx256_) // ARM
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133 {
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134 // Setup the the UART interface for keyboard data input
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135 SIM_SCGC4 |= SIM_SCGC4_UART0; // Disable clock gating
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136
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137 // Pin Setup for UART0
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138 PORTB_PCR16 = PORT_PCR_PE | PORT_PCR_PS | PORT_PCR_PFE | PORT_PCR_MUX(3); // RX Pin
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139 PORTB_PCR17 = PORT_PCR_DSE | PORT_PCR_SRE | PORT_PCR_MUX(3); // TX Pin
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140
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141 // Setup baud rate - 1205 Baud
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142 // 48 MHz / ( 16 * Baud ) = BDH/L
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143 // Baud: 1205 -> 48 MHz / ( 16 * 1205 ) = 2489.6266
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144 // Thus baud setting = 2490
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145 // NOTE: If finer baud adjustment is needed see UARTx_C4 -> BRFA in the datasheet
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146 uint16_t baud = 2490; // Max setting of 8191
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147 UART0_BDH = (uint8_t)(baud >> 8);
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148 UART0_BDL = (uint8_t)baud;
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149
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150 // 8 bit, Even Parity, Idle Character bit after stop
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151 // NOTE: For 8 bit with Parity you must enable 9 bit transmission (pg. 1065)
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152 // You only need to use UART0_D for 8 bit reading/writing though
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153 // UART_C1_M UART_C1_PE UART_C1_PT UART_C1_ILT
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154 UART0_C1 = UART_C1_M | UART_C1_PE | UART_C1_ILT;
73
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155
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156 // Number of bytes in FIFO before TX Interrupt
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157 UART0_TWFIFO = 1;
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158
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159 // Number of bytes in FIFO before RX Interrupt
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160 UART0_RWFIFO = 1;
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161
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162 // TX FIFO Disabled, TX FIFO Size 1 (Max 8 datawords), RX FIFO Enabled, RX FIFO Size 1 (Max 8 datawords)
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163 // TX/RX FIFO Size:
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164 // 0x0 - 1 dataword
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165 // 0x1 - 4 dataword
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166 // 0x2 - 8 dataword
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167 //UART0_PFIFO = UART_PFIFO_TXFE | /*TXFIFOSIZE*/ (0x0 << 4) | UART_PFIFO_RXFE | /*RXFIFOSIZE*/ (0x0);
73
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168
74
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169 // Reciever Inversion Disabled, LSBF
75
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170 // UART_S2_RXINV UART_S2_MSBF
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171 UART0_S2 |= 0x00;
73
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172
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173 // Transmit Inversion Disabled
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174 // UART_C3_TXINV
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175 UART0_C3 |= 0x00;
73
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176
74
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177 // TX Disabled, RX Enabled, RX Interrupt Enabled
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178 // UART_C2_TE UART_C2_RE UART_C2_RIE
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179 UART0_C2 = UART_C2_RE | UART_C2_RIE;
74
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180
73
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181 // Add interrupt to the vector table
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182 NVIC_ENABLE_IRQ( IRQ_UART0_STATUS );
70
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183
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184 // Reset the keyboard before scanning, we might be in a wierd state
149
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185 Scan_resetKeyboard();
70
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186 }
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187 #endif
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188
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189
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190 // Main Detection Loop
125
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191 inline uint8_t Scan_loop()
70
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192 {
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193 return 0;
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194 }
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195
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196 void processKeyValue( uint8_t keyValue )
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197 {
77
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198 // XXX NOTE: The key processing is not complete for this keyboard
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199 // Mostly due to laziness, and that the keyboard can't really be useful on a modern computer
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200 // Basic typing will work, but some of the keys and the Graph mode changes things around
70
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201
77
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202 // Add key(s) to processing buffer
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203 // First split out Shift and Ctrl
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204 // Reserved Codes:
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205 // Shift - 0xF5
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206 // Ctrl - 0xF6
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207 switch ( keyValue )
70
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208 {
77
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209 // - Ctrl Keys -
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210 // Exception keys
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211 case 0x08: // ^H
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212 case 0x09: // ^I
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213 case 0x0D: // ^M
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214 case 0x1B: // ^[
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215 Macro_bufferAdd( keyValue );
77
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216 break;
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217 // 0x40 Offset Keys
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218 // Add Ctrl key and offset to the lower alphabet
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219 case 0x00: // ^@
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220 case 0x1C: // "^\"
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221 case 0x1D: // ^]
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222 case 0x1E: // ^^
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223 case 0x1F: // ^_
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224 Macro_bufferAdd( 0xF6 );
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225 Macro_bufferAdd( keyValue + 0x40 );
77
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226 break;
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227
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228 // - Add Shift key and offset to non-shifted key -
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229 // 0x10 Offset Keys
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230 case 0x21: // !
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231 case 0x23: // #
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232 case 0x24: // $
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233 case 0x25: // %
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234 Macro_bufferAdd( 0xF5 );
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235 Macro_bufferAdd( keyValue + 0x10 );
77
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236 break;
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237 // 0x11 Offset Keys
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238 case 0x26: // &
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239 case 0x28: // (
125
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240 Macro_bufferAdd( 0xF5 );
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241 Macro_bufferAdd( keyValue + 0x11 );
77
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242 break;
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243 // 0x07 Offset Keys
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244 case 0x29: // )
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245 Macro_bufferAdd( 0xF5 );
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246 Macro_bufferAdd( keyValue + 0x07 );
77
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247 break;
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248 // -0x0E Offset Keys
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249 case 0x40: // @
125
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250 Macro_bufferAdd( 0xF5 );
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251 Macro_bufferAdd( keyValue - 0x0E );
77
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252 break;
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253 // 0x0E Offset Keys
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254 case 0x2A: // *
125
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255 Macro_bufferAdd( 0xF5 );
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256 Macro_bufferAdd( keyValue + 0x0E );
77
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257 break;
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258 // 0x12 Offset Keys
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259 case 0x2B: // +
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260 Macro_bufferAdd( 0xF5 );
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261 Macro_bufferAdd( keyValue + 0x12 );
77
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262 break;
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263 // 0x05 Offset Keys
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264 case 0x22: // "
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265 Macro_bufferAdd( 0xF5 );
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266 Macro_bufferAdd( keyValue + 0x05 );
77
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267 break;
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diff changeset
268 // 0x01 Offset Keys
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269 case 0x3A: // :
125
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270 Macro_bufferAdd( 0xF5 );
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271 Macro_bufferAdd( keyValue + 0x01 );
77
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272 break;
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diff changeset
273 // -0x10 Offset Keys
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274 case 0x3C: // <
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275 case 0x3E: // >
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276 case 0x3F: // ?
125
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277 Macro_bufferAdd( 0xF5 );
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278 Macro_bufferAdd( keyValue - 0x10 );
77
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279 break;
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280 // -0x28 Offset Keys
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281 case 0x5E: // ^
125
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282 Macro_bufferAdd( 0xF5 );
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283 Macro_bufferAdd( keyValue - 0x28 );
77
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284 break;
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285 // -0x32 Offset Keys
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286 case 0x5F: // _
125
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287 Macro_bufferAdd( 0xF5 );
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288 Macro_bufferAdd( keyValue - 0x32 );
77
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289 break;
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290 // -0x20 Offset Keys
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291 case 0x7B: // {
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292 case 0x7C: // |
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293 case 0x7D: // }
125
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294 Macro_bufferAdd( 0xF5 );
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295 Macro_bufferAdd( keyValue - 0x20 );
77
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296 break;
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297 // -0x1E Offset Keys
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298 case 0x7E: // ~
125
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299 Macro_bufferAdd( 0xF5 );
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300 Macro_bufferAdd( keyValue - 0x1E );
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301 break;
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302 // All other keys
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303 default:
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304 // Ctrl Characters are from 0x00 to 0x1F, excluding:
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305 // 0x08 - Backspace
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306 // 0x09 - [Horizontal] Tab
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307 // 0x0D - [Carriage] Return
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308 // 0x1B - Escape
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309 // 0x7F - Delete (^?) (Doesn't need to be split out)
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310
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311 // 0x60 Offset Keys
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312 // Add Ctrl key and offset to the lower alphabet
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313 if ( keyValue >= 0x00 && keyValue <= 0x1F )
70
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314 {
125
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315 Macro_bufferAdd( 0xF6 );
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316 Macro_bufferAdd( keyValue + 0x60 );
70
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317 }
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318
77
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319 // Shift Characters are from 0x41 to 0x59
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320 // No exceptions here :D
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321 // Add Shift key and offset to the lower alphabet
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322 else if ( keyValue >= 0x41 && keyValue <= 0x5A )
70
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323 {
125
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324 Macro_bufferAdd( 0xF5 );
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325 Macro_bufferAdd( keyValue + 0x20 );
70
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326 }
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327
77
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328 // Everything else
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329 else
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330 {
125
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331 Macro_bufferAdd( keyValue );
77
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diff changeset
332 }
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333 break;
70
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334 }
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335 }
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336
73
872273398943 Adding initial ARM UART structure for UART0
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diff changeset
337 // Send data
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338 // NOTE: Example only, MBC-55X cannot receive user data
125
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diff changeset
339 uint8_t Scan_sendData( uint8_t dataPayload )
70
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340 {
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341 // Debug
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342 char tmpStr[6];
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343 hexToStr( dataPayload, tmpStr );
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344 info_dPrint( "Sending - ", tmpStr );
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345
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346 #if defined(_at90usb162_) || defined(_atmega32u4_) || defined(_at90usb646_) || defined(_at90usb1286_) // AVR
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347 UDR1 = dataPayload;
263
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diff changeset
348 #elif defined(_mk20dx128_) || defined(_mk20dx256_) // ARM
73
872273398943 Adding initial ARM UART structure for UART0
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diff changeset
349 UART0_D = dataPayload;
70
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350 #endif
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351
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352 return 0;
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353 }
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354
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355 // Signal KeyIndex_Buffer that it has been properly read
125
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diff changeset
356 void Scan_finishedWithBuffer( uint8_t sentKeys )
70
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357 {
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358 }
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359
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parents:
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360 // Signal that the keys have been properly sent over USB
125
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diff changeset
361 void Scan_finishedWithUSBBuffer( uint8_t sentKeys )
70
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362 {
77
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diff changeset
363 cli(); // Disable Interrupts
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diff changeset
364
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diff changeset
365 // Reset the buffer counter
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diff changeset
366 KeyIndex_BufferUsed = 0;
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diff changeset
367
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diff changeset
368 sei(); // Re-enable Interrupts
70
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parents:
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369 }
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parents:
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370
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parents:
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371 // Reset/Hold keyboard
77
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diff changeset
372 // NOTE: Does nothing with the MBC-55x
125
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diff changeset
373 void Scan_lockKeyboard( void )
70
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parents:
diff changeset
374 {
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parents:
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375 }
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parents:
diff changeset
376
77
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diff changeset
377 // NOTE: Does nothing with the MBC-55x
125
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diff changeset
378 void Scan_unlockKeyboard( void )
70
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parents:
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379 {
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parents:
diff changeset
380 }
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parents:
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381