1 | /* |
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2 | * $Id$ |
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3 | */ |
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4 | |
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5 | #include "serial.h" |
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6 | #include "rtems.h" |
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7 | |
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8 | |
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9 | typedef unsigned char uchar ; /* Abbreviations */ |
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10 | typedef unsigned short ushort ; |
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11 | typedef unsigned long ulong ; |
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12 | int DBGConsole_make_sync = 0; |
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13 | #define CONSOLE_CHANNELS 1 |
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14 | |
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15 | #define MAX_CONSOLE 4 |
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16 | static int consoles[MAX_CONSOLE]; |
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17 | static int active_consoles = 0; |
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18 | static struct{ |
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19 | rtems_id sem; |
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20 | int rx; |
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21 | int cnt; |
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22 | char in_line[128]; |
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23 | }cons_input[MAX_CONSOLE]; |
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24 | |
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25 | |
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26 | |
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27 | /* This uses the message out and in buffers as serial emulator. |
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28 | Pretty stupid eh? |
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29 | */ |
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30 | |
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31 | #define uart1 ((volatile unsigned char *)0x1318) |
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32 | #define uart1_rx ((volatile unsigned int *)0x1310) |
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33 | |
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34 | #define NUM_UARTS 1 |
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35 | static volatile unsigned int * uart = { uart1 }; |
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36 | static volatile unsigned int * uart_rx = { uart1_rx }; |
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37 | |
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38 | |
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39 | extern void display_msg(void); |
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40 | /*extern int sprintf();*/ |
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41 | |
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42 | |
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43 | |
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44 | int |
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45 | console_uartinit(unsigned int BAUDRate) |
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46 | { |
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47 | #ifdef CONSOLE_CHANNELS |
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48 | void cons_isr(); |
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49 | rpmu_attach_inmsg0(cons_isr); |
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50 | #endif |
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51 | return(0); |
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52 | } |
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53 | |
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54 | |
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55 | /* Introduce a new console channel */ |
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56 | console_new(char * name) |
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57 | { |
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58 | #ifdef CONSOLE_CHANNELS |
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59 | unsigned int x, stat; |
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60 | x = 0xfe000000 | (name[0] << 16) | (name[1] << 8) | name[2]; |
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61 | do { |
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62 | stat = *uart; |
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63 | } while (DBGConsole_make_sync && (stat != 0)); |
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64 | *uart = x; |
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65 | x = ( name[3] << 24) | ( name[4] << 16) | ( name[5] << 8) | name[6] ; |
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66 | do { |
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67 | stat = *uart; |
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68 | } while (DBGConsole_make_sync && (stat != 0)); |
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69 | *uart = x; |
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70 | active_consoles += 1; |
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71 | rtems_task_ident( RTEMS_SELF, RTEMS_SEARCH_ALL_NODES, &consoles[active_consoles] ); |
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72 | #endif |
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73 | } |
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74 | |
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75 | |
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76 | |
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77 | /*********************************************************************** |
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78 | *** Transmit character to host. |
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79 | *** put the console ID in upper byte |
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80 | *** |
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81 | ***********************************************************************/ |
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82 | |
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83 | int console_sps_putc(int cc) |
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84 | { |
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85 | register unsigned char stat; |
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86 | int rtid, i; |
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87 | unsigned int ch; |
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88 | unsigned int level; |
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89 | #ifdef CONSOLE_CHANNELS |
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90 | rtems_task_ident( RTEMS_SELF, RTEMS_SEARCH_ALL_NODES, &rtid ); |
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91 | ch = cc & 0xff; |
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92 | for(i=1; i <= active_consoles; i++){ |
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93 | if( rtid == consoles[i]){ |
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94 | ch |= (i ) << 24 ; |
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95 | break; |
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96 | } |
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97 | } |
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98 | #else |
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99 | ch = cc; |
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100 | #endif |
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101 | |
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102 | /* |
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103 | * Pause until there is room in the UART transmit |
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104 | * buffer. |
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105 | */ |
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106 | |
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107 | if (ch == -1) |
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108 | return ch; |
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109 | |
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110 | wait: |
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111 | do { |
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112 | stat = *uart; |
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113 | } while (DBGConsole_make_sync && (stat != 0)); |
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114 | rtems_interrupt_disable(level); |
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115 | if( (*uart != 0) && DBGConsole_make_sync){ |
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116 | rtems_interrupt_enable(level); |
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117 | goto wait; |
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118 | } |
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119 | |
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120 | /* |
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121 | * Transmit data. (Junk) |
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122 | */ |
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123 | |
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124 | *uart = ch; |
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125 | rtems_interrupt_enable(level); |
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126 | return cc; |
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127 | |
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128 | } |
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129 | |
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130 | |
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131 | /* |
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132 | * putnum -- print a 32 bit number in hex |
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133 | */ |
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134 | int |
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135 | putnum (num) |
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136 | unsigned int num; |
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137 | { |
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138 | char buffer[9]; |
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139 | int count; |
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140 | int digit; |
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141 | |
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142 | for (count = 7 ; count >= 0 ; count--) { |
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143 | digit = (num >> (count * 4)) & 0xf; |
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144 | |
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145 | if (digit <= 9) |
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146 | console_sps_putc( (char) ('0' + digit)); |
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147 | else |
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148 | console_sps_putc( (char) ('A' - 10 + digit)); |
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149 | } |
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150 | } |
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151 | |
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152 | /* |
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153 | * putmem -- print the specified memory block |
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154 | */ |
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155 | void |
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156 | putmem (addr, num) |
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157 | char *addr; |
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158 | unsigned int num; |
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159 | { |
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160 | int i = 0; |
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161 | int j = 0; |
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162 | int val = 0; |
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163 | int digit = 0; |
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164 | |
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165 | console_sps_putc(13); |
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166 | console_sps_putc(10); |
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167 | putnum((unsigned int) addr); |
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168 | console_sps_putc(':'); |
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169 | console_sps_putc(' '); |
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170 | while(num) |
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171 | { |
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172 | val = *addr; |
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173 | |
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174 | for (j = 0; j < 2; j++) |
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175 | { |
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176 | digit = (val & 0xf0) >> 4; |
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177 | val <<= 4; |
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178 | |
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179 | if (digit < 10) |
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180 | { |
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181 | console_sps_putc(digit + '0'); |
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182 | } |
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183 | else |
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184 | { |
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185 | console_sps_putc(digit - 10 + 'A'); |
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186 | } |
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187 | } |
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188 | console_sps_putc(' '); |
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189 | |
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190 | num--; |
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191 | addr++; |
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192 | if (++i == 16) |
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193 | { |
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194 | console_sps_putc(13); |
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195 | console_sps_putc(10); |
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196 | putnum((unsigned int) addr); |
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197 | console_sps_putc(':'); |
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198 | console_sps_putc(' '); |
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199 | i = 0; |
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200 | } |
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201 | } |
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202 | console_sps_putc(13); |
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203 | console_sps_putc(10); |
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204 | } |
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205 | |
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206 | /* |
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207 | * putcmem -- print the specified pci config memory block |
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208 | */ |
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209 | void |
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210 | putcmem (addr, num) |
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211 | unsigned char *addr; |
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212 | unsigned int num; |
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213 | { |
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214 | int i = 0; |
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215 | int j = 0; |
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216 | unsigned short val = 0; |
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217 | int digit = 0; |
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218 | unsigned int *satucmd = (unsigned int *) 0x1298; |
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219 | unsigned int *soccar = (unsigned int *) 0x12a8; |
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220 | unsigned int *soccdp = (unsigned int *) 0x12b0; |
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221 | |
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222 | *satucmd = 4; |
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223 | |
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224 | console_sps_putc(13); |
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225 | console_sps_putc(10); |
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226 | putnum((unsigned int) addr); |
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227 | console_sps_putc(':'); |
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228 | console_sps_putc(' '); |
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229 | while(num) |
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230 | { |
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231 | *soccar = (unsigned int) addr; |
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232 | val = *soccdp; |
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233 | |
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234 | for (j = 0; j < 4; j++) |
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235 | { |
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236 | digit = (val & 0xf000) >> 12; |
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237 | val <<= 4; |
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238 | |
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239 | if (digit < 10) |
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240 | { |
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241 | console_sps_putc(digit + '0'); |
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242 | } |
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243 | else |
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244 | { |
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245 | console_sps_putc(digit - 10 + 'A'); |
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246 | } |
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247 | } |
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248 | console_sps_putc(' '); |
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249 | |
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250 | num -= 2; |
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251 | addr += 2; |
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252 | if (++i == 8) |
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253 | { |
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254 | console_sps_putc(13); |
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255 | console_sps_putc(10); |
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256 | putnum((unsigned int) addr); |
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257 | console_sps_putc(':'); |
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258 | console_sps_putc(' '); |
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259 | i = 0; |
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260 | } |
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261 | } |
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262 | console_sps_putc(13); |
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263 | console_sps_putc(10); |
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264 | } |
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265 | |
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266 | /*********************************************************************** |
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267 | *** Read character from host. |
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268 | ***********************************************************************/ |
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269 | #ifdef CONSOLE_CHANNELS |
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270 | int console_sps_getc() |
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271 | { |
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272 | |
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273 | int consinx; |
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274 | int rtid, i; |
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275 | unsigned int level, level2; |
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276 | char ch; |
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277 | consinx = 0; |
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278 | rtems_task_ident( RTEMS_SELF, RTEMS_SEARCH_ALL_NODES, &rtid ); |
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279 | for(i=1; i <= active_consoles; i++){ |
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280 | if( rtid == consoles[i]){ |
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281 | consinx = i ; |
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282 | break; |
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283 | } |
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284 | } |
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285 | if( i > active_consoles) |
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286 | consinx = 0; |
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287 | if( cons_input[consinx].sem == 0){ |
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288 | rtems_name sname; |
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289 | sname = rtems_build_name('S','U','X',(char)(consinx + '0')); |
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290 | rtems_semaphore_create(sname, 0, RTEMS_DEFAULT_ATTRIBUTES, 0, &cons_input[consinx].sem); |
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291 | cons_input[consinx].rx = 0; |
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292 | } |
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293 | while( cons_input[consinx].cnt == cons_input[consinx].rx){ |
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294 | rtems_semaphore_obtain(cons_input[consinx].sem, RTEMS_WAIT, 0); |
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295 | /* rtems_task_wake_after( RTEMS_YIELD_PROCESSOR);*/ |
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296 | } |
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297 | rtems_interrupt_disable(level); |
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298 | i = cons_input[consinx].rx; |
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299 | ch = cons_input[consinx].in_line[i]; |
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300 | i++; |
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301 | if( i >= sizeof( cons_input[consinx].in_line)) |
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302 | i = 0; |
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303 | cons_input[consinx].rx = i; |
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304 | rtems_interrupt_enable(level); |
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305 | return ch; |
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306 | } |
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307 | |
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308 | |
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309 | void cons_isr() |
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310 | { |
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311 | unsigned int i, chin, consinx, st; |
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312 | chin = *uart_rx; |
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313 | consinx = chin >> 24; |
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314 | if( consinx > active_consoles) |
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315 | goto release; |
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316 | i = cons_input[consinx].cnt; |
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317 | cons_input[consinx].in_line[i] = chin & 0xff; |
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318 | i++; |
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319 | if( i >= sizeof( cons_input[consinx].in_line)) |
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320 | i = 0; |
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321 | cons_input[consinx].cnt = i; |
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322 | st = rtems_semaphore_release( cons_input[consinx].sem); |
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323 | release: |
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324 | *uart_rx = 0; |
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325 | } |
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326 | |
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327 | #else |
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328 | volatile int console_foo = 0; |
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329 | int console_sps_getc() |
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330 | { |
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331 | volatile unsigned int stat; |
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332 | register int ch; |
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333 | |
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334 | stat = *uart_rx; |
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335 | while (stat == 0) |
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336 | { |
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337 | rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ); |
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338 | stat = *uart_rx; |
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339 | console_foo++; |
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340 | } |
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341 | *uart_rx = 0; |
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342 | |
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343 | ch = stat; |
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344 | |
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345 | return ch; |
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346 | } |
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347 | #endif |
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348 | |
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349 | /*********************************************************************** |
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350 | *** check character from host. |
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351 | ***********************************************************************/ |
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352 | |
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353 | int console_sps_kbhit() |
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354 | { |
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355 | register unsigned short stat; |
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356 | |
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357 | stat = *uart; |
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358 | return ( stat != 0); |
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359 | } |
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