1 | /* |
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2 | * This file contains the TTY driver table for the DY-4 DMV177. |
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3 | * |
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4 | * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994, 1997. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * |
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7 | * $Id$ |
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8 | */ |
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9 | |
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10 | #include <bsp.h> |
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11 | |
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12 | #include <libchip/serial.h> |
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13 | #include <libchip/mc68681.h> |
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14 | #include <libchip/z85c30.h> |
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15 | |
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16 | /* |
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17 | * Configuration specific probe routines |
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18 | * |
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19 | * |
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20 | * NOTE: There are no DMV177 specific configuration routines. These |
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21 | * routines could be written to dynamically determine which serial |
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22 | * ports are on a board. Debugging this would require access to |
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23 | * multiple board models. |
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24 | */ |
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25 | |
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26 | /* NONE CURRENTLY PROVIDED */ |
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27 | |
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28 | /* |
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29 | * The following table configures the console drivers used in this BSP. |
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30 | * |
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31 | * The first entry which, when probed, is available, will be named /dev/console, |
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32 | * all others being given the name indicated. |
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33 | */ |
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34 | |
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35 | mc68681_baud_t |
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36 | dmv177_mc68681_baud_table[4][RTEMS_TERMIOS_NUMBER_BAUD_RATES] = { |
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37 | { /* ACR[7] = 0, X = 0 */ |
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38 | MC68681_BAUD_NOT_VALID, /* B0 */ |
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39 | MC68681_BAUD_NOT_VALID, /* B50 */ |
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40 | 0x01, /* B75 */ |
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41 | MC68681_BAUD_NOT_VALID, /* B110 */ |
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42 | 0x03, /* B134 */ |
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43 | MC68681_BAUD_NOT_VALID, /* B150 */ |
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44 | 0x04, /* B200 */ |
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45 | MC68681_BAUD_NOT_VALID, /* B300 */ |
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46 | MC68681_BAUD_NOT_VALID, /* B600 */ |
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47 | MC68681_BAUD_NOT_VALID, /* B1200 */ |
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48 | MC68681_BAUD_NOT_VALID, /* B1800 */ |
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49 | MC68681_BAUD_NOT_VALID, /* B2400 */ |
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50 | 0x0A, /* B4800 */ |
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51 | MC68681_BAUD_NOT_VALID, /* B9600 */ |
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52 | MC68681_BAUD_NOT_VALID, /* B19200 */ |
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53 | MC68681_BAUD_NOT_VALID, /* B38400 */ |
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54 | MC68681_BAUD_NOT_VALID, /* B57600 */ |
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55 | MC68681_BAUD_NOT_VALID, /* B115200 */ |
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56 | MC68681_BAUD_NOT_VALID, /* B230400 */ |
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57 | MC68681_BAUD_NOT_VALID /* B460800 */ |
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58 | }, |
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59 | { /* ACR[7] = 1, X = 0 */ |
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60 | MC68681_BAUD_NOT_VALID, /* B0 */ |
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61 | 0x00, /* B50 */ |
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62 | 0x01, /* B75 */ |
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63 | MC68681_BAUD_NOT_VALID, /* B110 */ |
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64 | MC68681_BAUD_NOT_VALID, /* B134 */ |
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65 | MC68681_BAUD_NOT_VALID, /* B150 */ |
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66 | 0x04, /* B200 */ |
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67 | MC68681_BAUD_NOT_VALID, /* B300 */ |
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68 | MC68681_BAUD_NOT_VALID, /* B600 */ |
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69 | 0x0A, /* B1200 */ |
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70 | MC68681_BAUD_NOT_VALID, /* B1800 */ |
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71 | MC68681_BAUD_NOT_VALID, /* B2400 */ |
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72 | MC68681_BAUD_NOT_VALID, /* B4800 */ |
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73 | MC68681_BAUD_NOT_VALID, /* B9600 */ |
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74 | MC68681_BAUD_NOT_VALID, /* B19200 */ |
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75 | MC68681_BAUD_NOT_VALID, /* B38400 */ |
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76 | MC68681_BAUD_NOT_VALID, /* B57600 */ |
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77 | MC68681_BAUD_NOT_VALID, /* B115200 */ |
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78 | MC68681_BAUD_NOT_VALID, /* B230400 */ |
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79 | MC68681_BAUD_NOT_VALID /* B460800 */ |
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80 | }, |
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81 | { /* ACR[7] = 0, X = 1 */ |
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82 | MC68681_BAUD_NOT_VALID, /* B0 */ |
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83 | 0x00, /* B50 */ |
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84 | 0x01, /* B75 */ |
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85 | MC68681_BAUD_NOT_VALID, /* B110 */ |
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86 | MC68681_BAUD_NOT_VALID, /* B134 */ |
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87 | MC68681_BAUD_NOT_VALID, /* B150 */ |
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88 | MC68681_BAUD_NOT_VALID, /* B200 */ |
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89 | MC68681_BAUD_NOT_VALID, /* B300 */ |
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90 | MC68681_BAUD_NOT_VALID, /* B600 */ |
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91 | MC68681_BAUD_NOT_VALID, /* B1200 */ |
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92 | MC68681_BAUD_NOT_VALID, /* B1800 */ |
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93 | 0x04, /* B2400 */ |
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94 | MC68681_BAUD_NOT_VALID, /* B4800 */ |
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95 | 0x05, /* B9600 */ |
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96 | 0x06, /* B19200 */ |
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97 | 0x07, /* B38400 */ |
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98 | MC68681_BAUD_NOT_VALID, /* B57600 */ |
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99 | MC68681_BAUD_NOT_VALID, /* B115200 */ |
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100 | MC68681_BAUD_NOT_VALID, /* B230400 */ |
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101 | MC68681_BAUD_NOT_VALID /* B460800 */ |
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102 | }, |
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103 | { /* ACR[7] = 1, X = 1 */ |
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104 | MC68681_BAUD_NOT_VALID, /* B0 */ |
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105 | MC68681_BAUD_NOT_VALID, /* B50 */ |
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106 | 0x01, /* B75 */ |
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107 | MC68681_BAUD_NOT_VALID, /* B110 */ |
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108 | 0x03, /* B134 */ |
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109 | MC68681_BAUD_NOT_VALID, /* B150 */ |
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110 | MC68681_BAUD_NOT_VALID, /* B200 */ |
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111 | MC68681_BAUD_NOT_VALID, /* B300 */ |
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112 | MC68681_BAUD_NOT_VALID, /* B600 */ |
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113 | MC68681_BAUD_NOT_VALID, /* B1200 */ |
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114 | MC68681_BAUD_NOT_VALID, /* B1800 */ |
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115 | 0x04, /* B2400 */ |
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116 | 0x0A, /* B4800 */ |
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117 | 0x05, /* B9600 */ |
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118 | 0x06, /* B19200 */ |
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119 | 0x07, /* B38400 */ |
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120 | MC68681_BAUD_NOT_VALID, /* B57600 */ |
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121 | MC68681_BAUD_NOT_VALID, /* B115200 */ |
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122 | MC68681_BAUD_NOT_VALID, /* B230400 */ |
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123 | MC68681_BAUD_NOT_VALID /* B460800 */ |
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124 | }, |
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125 | }; |
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126 | |
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127 | #define MC68681_PORT_CONFIG \ |
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128 | (MC68681_DATA_BAUD_RATE_SET_1|MC68681_XBRG_ENABLED) |
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129 | |
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130 | /* |
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131 | * Based on BSP configuration information decide whether to do polling IO |
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132 | * or interrupt driven IO. |
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133 | */ |
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134 | |
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135 | #if (CONSOLE_USE_INTERRUPTS) |
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136 | #define MC68681_FUNCTIONS &mc68681_fns |
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137 | #define Z85C30_FUNCTIONS &z85c30_fns |
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138 | #else |
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139 | #define MC68681_FUNCTIONS &mc68681_fns_polled |
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140 | #define Z85C30_FUNCTIONS &z85c30_fns_polled |
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141 | #endif |
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142 | |
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143 | boolean dmv177_z85c30_probe(int minor); |
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144 | boolean dmv177_mc68681_probe(int minor); |
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145 | |
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146 | console_tbl Console_Port_Tbl[] = { |
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147 | { |
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148 | "/dev/com0", /* sDeviceName */ |
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149 | SERIAL_MC68681, /* deviceType */ |
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150 | MC68681_FUNCTIONS, /* pDeviceFns */ |
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151 | dmv177_mc68681_probe, /* deviceProbe */ |
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152 | NULL, /* pDeviceFlow */ |
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153 | 16, /* ulMargin */ |
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154 | 8, /* ulHysteresis */ |
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155 | (void *)9600, /* baud rate */ /* pDeviceParams */ |
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156 | MC68681_ADDR, /* ulCtrlPort1 */ |
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157 | MC68681_PORT1_ADDR, /* ulCtrlPort2 */ |
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158 | MC68681_PORT_CONFIG, /* ulDataPort */ |
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159 | mc68681_get_register_8, /* getRegister */ |
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160 | mc68681_set_register_8, /* setRegister */ |
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161 | NULL, /* unused */ /* getData */ |
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162 | NULL, /* unused */ /* setData */ |
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163 | (uint32_t)dmv177_mc68681_baud_table, /* ulClock */ |
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164 | DMV170_DUART_IRQ /* ulIntVector */ |
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165 | }, |
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166 | { |
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167 | "/dev/com1", /* sDeviceName */ |
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168 | SERIAL_MC68681, /* deviceType */ |
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169 | MC68681_FUNCTIONS, /* pDeviceFns */ |
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170 | dmv177_mc68681_probe, /* deviceProbe */ |
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171 | NULL, /* pDeviceFlow */ |
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172 | 16, /* ulMargin */ |
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173 | 8, /* ulHysteresis */ |
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174 | (void *)9600, /* baud rate */ /* pDeviceParams */ |
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175 | MC68681_ADDR, /* ulCtrlPort1 */ |
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176 | MC68681_PORT2_ADDR, /* ulCtrlPort2 */ |
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177 | MC68681_PORT_CONFIG, /* ulDataPort */ |
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178 | mc68681_get_register_8, /* getRegister */ |
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179 | mc68681_set_register_8, /* setRegister */ |
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180 | NULL, /* unused */ /* getData */ |
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181 | NULL, /* unused */ /* setData */ |
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182 | (uint32_t)dmv177_mc68681_baud_table, /* ulClock */ |
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183 | DMV170_DUART_IRQ /* ulIntVector */ |
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184 | }, |
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185 | { |
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186 | "/dev/com3", /* sDeviceName */ |
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187 | SERIAL_Z85C30, /* deviceType */ |
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188 | Z85C30_FUNCTIONS, /* pDeviceFns */ |
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189 | dmv177_z85c30_probe, /* deviceProbe */ |
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190 | NULL, /* pDeviceFlow */ |
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191 | 16, /* ulMargin */ |
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192 | 8, /* ulHysteresis */ |
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193 | (void *)9600, /* baud rate */ /* pDeviceParams */ |
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194 | Z85C30_CTRL_A, /* ulCtrlPort1 */ |
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195 | Z85C30_CTRL_A, /* ulCtrlPort2 */ |
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196 | 0, /* ulDataPort */ |
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197 | z85c30_get_register, /* getRegister */ |
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198 | z85c30_set_register, /* setRegister */ |
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199 | NULL, /* getData */ |
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200 | NULL, /* setData */ |
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201 | 0, /* filled in by probe */ /* ulClock */ |
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202 | DMV170_SCC_IRQ /* ulIntVector */ |
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203 | }, |
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204 | { |
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205 | "/dev/com4", /* sDeviceName */ |
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206 | SERIAL_Z85C30, /* deviceType */ |
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207 | Z85C30_FUNCTIONS, /* pDeviceFns */ |
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208 | dmv177_z85c30_probe, /* deviceProbe */ |
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209 | NULL, /* pDeviceFlow */ |
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210 | 16, /* ulMargin */ |
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211 | 8, /* ulHysteresis */ |
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212 | (void *)9600, /* baud rate */ /* pDeviceParams */ |
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213 | Z85C30_CTRL_B, /* ulCtrlPort1 */ |
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214 | Z85C30_CTRL_A, /* ulCtrlPort2 */ |
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215 | 0, /* ulDataPort */ |
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216 | z85c30_get_register, /* getRegister */ |
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217 | z85c30_set_register, /* setRegister */ |
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218 | NULL, /* getData */ |
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219 | NULL, /* setData */ |
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220 | 0, /* filled in by probe */ /* ulClock */ |
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221 | DMV170_SCC_IRQ /* ulIntVector */ |
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222 | } |
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223 | }; |
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224 | |
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225 | /* |
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226 | * Declare some information used by the console driver |
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227 | */ |
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228 | |
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229 | #define NUM_CONSOLE_PORTS (sizeof(Console_Port_Tbl)/sizeof(console_tbl)) |
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230 | |
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231 | unsigned long Console_Port_Count = NUM_CONSOLE_PORTS; |
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232 | |
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233 | console_data Console_Port_Data[NUM_CONSOLE_PORTS]; |
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234 | |
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235 | rtems_device_minor_number Console_Port_Minor; |
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236 | |
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237 | /* |
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238 | * Hopefully, by checking the card resource register, this BSP |
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239 | * will be able to operate on the DMV171, DMV176, or DMV177. |
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240 | */ |
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241 | |
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242 | boolean dmv177_z85c30_probe(int minor) |
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243 | { |
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244 | volatile uint32_t *dma_control_status_reg; |
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245 | volatile uint16_t *card_resource_reg; |
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246 | uint16_t v; |
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247 | |
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248 | card_resource_reg = (volatile uint16_t*) DMV170_CARD_RESORCE_REG; |
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249 | |
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250 | v = *card_resource_reg & DMV170_SCC_INST_MASK; |
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251 | |
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252 | if ( v != DMV170_SCC_INSTALLED ) |
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253 | return FALSE; |
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254 | |
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255 | /* |
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256 | * Figure out the clock speed of the Z85C30 SCC |
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257 | */ |
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258 | |
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259 | dma_control_status_reg = (volatile uint32_t*)DMV170_DMA_CONTROL_STATUS_REG; |
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260 | |
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261 | if ( *dma_control_status_reg & DMV170_SCC_10MHZ ) |
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262 | Console_Port_Tbl[minor].ulClock = Z85C30_CLOCK_10; |
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263 | else |
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264 | Console_Port_Tbl[minor].ulClock = Z85C30_CLOCK_2; |
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265 | |
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266 | return TRUE; |
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267 | } |
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268 | |
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269 | boolean dmv177_mc68681_probe(int minor) |
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270 | { |
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271 | volatile uint16_t *card_resource_reg; |
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272 | uint16_t v; |
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273 | |
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274 | card_resource_reg = (volatile uint16_t*) DMV170_CARD_RESORCE_REG; |
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275 | |
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276 | v = *card_resource_reg & DMV170_DUART_INST_MASK; |
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277 | |
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278 | if ( v == DMV170_DUART_INSTALLED ) |
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279 | return TRUE; |
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280 | |
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281 | return FALSE; |
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282 | } |
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