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9 | f9daq | 1 | //------------------------------------------------------------------------------------------- |
2 | // pcilib.c - interface hardware dependend functions to interface to the pvmon |
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3 | // |
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4 | // (c) 1999-2002 ARW Elektronik |
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5 | // |
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6 | // this source code is published under GPL (Open Source). You can use, redistrubute and |
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7 | // modify it unless this header is not modified or deleted. No warranty is given that |
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8 | // this software will work like expected. |
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9 | // This product is not authorized for use as critical component in life support systems |
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10 | // wihout the express written approval of ARW Elektronik Germany. |
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11 | // |
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12 | // Please announce changes and hints to ARW Elektronik |
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13 | // |
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14 | // $Log: pcilibLx.c,v $ |
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15 | // Revision 1.4 2002/10/20 18:07:48 klaus |
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16 | // mostly working alpha version |
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17 | // |
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18 | // Revision 1.3 2002/10/20 11:49:33 klaus |
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19 | // first parts working |
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20 | // |
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21 | // Revision 1.2 2002/10/19 09:44:36 klaus |
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22 | // first success compiling project |
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23 | // |
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24 | // Revision 1.1.1.1 2002/10/18 22:14:29 klaus |
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25 | // |
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26 | |||
27 | //------------------------------------------------------------------------------------------- |
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28 | // INCLUDES |
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29 | // |
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30 | #include <stdio.h> |
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31 | #include <string.h> |
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32 | #include <errno.h> |
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33 | #include <ctype.h> |
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34 | |||
35 | #include <../driver/pcivme.h> |
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36 | #include <../driver/vic.h> |
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37 | #include <../driver/vme.h> |
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38 | #include <../lib/pcivme_ni.h> |
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39 | #include <pcilibLx.h> |
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40 | #include <mbuffer.h> |
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41 | |||
42 | //------------------------------------------------------------------------------------------- |
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43 | // DEFINES |
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44 | // |
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45 | |||
46 | //------------------------------------------------------------------------------------------- |
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47 | // TYPEDEFS |
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48 | // |
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49 | |||
50 | //------------------------------------------------------------------------------------------- |
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51 | // GLOBALS |
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52 | // |
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53 | static int storedError = 0; |
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54 | static int nLocalWordMode = 0; // initial 32 bit mode |
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55 | |||
56 | //-------------------------------------------------------------------------- |
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57 | // LOCALS |
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58 | // |
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59 | |||
60 | //------------------------------------------------------------------------------------------- |
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61 | // FUNCTIONS |
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62 | // |
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63 | |||
64 | //------------------------------------------------------------------------------------------- |
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65 | // set word mode |
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66 | // |
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67 | int setWordMode(int nMode) |
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68 | { |
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69 | nLocalWordMode = nMode; |
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70 | |||
71 | return nLocalWordMode; |
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72 | } |
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73 | |||
74 | //------------------------------------------------------------------------------------------- |
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75 | // set interface special registers - VIC68A |
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76 | // |
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77 | unsigned long _SetRegister(int nIfcHandle, unsigned long Address, unsigned long Value) |
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78 | { |
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79 | __u8 ubContent = (__u8)Value; |
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80 | |||
81 | VMEaccessVIC(nIfcHandle, VIC68A_WRITE, Address, &ubContent); |
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82 | |||
83 | return ubContent; |
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84 | } |
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85 | |||
86 | |||
87 | //------------------------------------------------------------------------------------------- |
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88 | // function to get special interface registers - VIC68A |
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89 | // |
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90 | unsigned long _GetRegister(int nIfcHandle, unsigned long Address) |
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91 | { |
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92 | __u8 ubContent; |
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93 | |||
94 | VMEaccessVIC(nIfcHandle, VIC68A_READ, Address, &ubContent); |
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95 | |||
96 | return ubContent; |
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97 | } |
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98 | |||
99 | |||
100 | //------------------------------------------------------------------------------------------- |
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101 | // init the interface with the current properties |
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102 | // |
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103 | int Init_Interface(char *szDevicePath, char AdrMode, int *nIfcHandle) |
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104 | { |
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105 | return VMEopen(szDevicePath, AdrMode, nIfcHandle); |
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106 | } |
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107 | |||
108 | |||
109 | //------------------------------------------------------------------------------------------- |
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110 | // deinit the current interface |
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111 | // |
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112 | void DeInit_Interface(int nIfcHandle) |
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113 | { |
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114 | VMEclose(nIfcHandle); |
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115 | } |
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116 | |||
117 | |||
118 | //------------------------------------------------------------------------------------------- |
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119 | // check if an error occured |
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120 | // |
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121 | int GetError(int nIfcHandle) |
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122 | { |
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123 | int error; |
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124 | |||
125 | if ((error = GetLastError(nIfcHandle))) |
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126 | storedError = error; |
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127 | else |
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128 | storedError = VMEerror(nIfcHandle); |
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129 | |||
130 | return storedError; |
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131 | } |
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132 | |||
133 | |||
134 | //------------------------------------------------------------------------------------------- |
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135 | // clear a pending error |
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136 | // |
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137 | void ClearError(int nIfcHandle) |
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138 | { |
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139 | storedError = 0; |
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140 | } |
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141 | |||
142 | //------------------------------------------------------------------------------------------- |
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143 | // read elements and split a long access into 2 word accesses if word data path |
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144 | // |
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145 | char ReadByte(int nIfcHandle, unsigned long adr, unsigned short modifier) |
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146 | { |
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147 | __u8 c; |
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148 | |||
149 | setAccessProperties(nIfcHandle, (__u8)modifier, BYTE_ACCESS); |
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150 | |||
151 | storedError = VMEread(nIfcHandle, adr, BYTE_ACCESS, 1, &c); |
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152 | |||
153 | return c; |
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154 | } |
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155 | |||
156 | short ReadWord(int nIfcHandle, unsigned long adr, unsigned short modifier) |
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157 | { |
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158 | __u16 w; |
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159 | |||
160 | setAccessProperties(nIfcHandle, (__u8)modifier, WORD_ACCESS); |
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161 | |||
162 | storedError = VMEread(nIfcHandle, adr, WORD_ACCESS, 1, &w); |
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163 | |||
164 | return w; |
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165 | } |
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166 | |||
167 | long ReadLong(int nIfcHandle, unsigned long adr, unsigned short modifier) |
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168 | { |
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169 | __u32 l; |
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170 | |||
171 | if (nLocalWordMode) |
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172 | { |
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173 | __u16 partl, parth; |
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174 | |||
175 | // lese high anteil von adresse +0 |
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176 | parth = ReadWord(nIfcHandle, adr, modifier); |
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177 | |||
178 | // lese low anteil von adresse +2 |
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179 | partl = ReadWord(nIfcHandle, adr + sizeof(__u16), modifier); |
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180 | |||
181 | l = (parth << 16) | partl; |
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182 | } |
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183 | else |
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184 | { |
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185 | setAccessProperties(nIfcHandle, (__u8)modifier, LONG_ACCESS); |
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186 | |||
187 | storedError = VMEread(nIfcHandle, adr, LONG_ACCESS, 1, &l); |
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188 | } |
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189 | |||
190 | return l; |
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191 | } |
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192 | |||
193 | //------------------------------------------------------------------------------------------- |
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194 | // write a byte/word/long and split a long access into 2 word accesses if word data path |
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195 | // |
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196 | void WriteByte(int nIfcHandle, unsigned long adr, char value, unsigned short modifier) |
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197 | { |
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198 | setAccessProperties(nIfcHandle, (__u8)modifier, BYTE_ACCESS); |
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199 | |||
200 | storedError = VMEwrite(nIfcHandle, adr, BYTE_ACCESS, 1, &value); |
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201 | } |
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202 | |||
203 | void WriteWord(int nIfcHandle, unsigned long adr, short value, unsigned short modifier) |
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204 | { |
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205 | setAccessProperties(nIfcHandle, (__u8)modifier, WORD_ACCESS); |
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206 | |||
207 | storedError = VMEwrite(nIfcHandle, adr, WORD_ACCESS, 1, &value); |
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208 | } |
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209 | |||
210 | void WriteLong(int nIfcHandle, unsigned long adr, long value, unsigned short modifier) |
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211 | { |
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212 | if (nLocalWordMode) |
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213 | { |
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214 | __u16 part; |
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215 | |||
216 | // high anteil auf adresse +0 |
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217 | part = (value >> 16) & 0xffff; |
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218 | WriteWord(nIfcHandle, adr, part, modifier); |
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219 | |||
220 | // low anteil auf adresse +2 |
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221 | part = value & 0xffff; |
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222 | WriteWord(nIfcHandle, adr + sizeof(__u16), part, modifier); |
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223 | } |
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224 | else |
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225 | { |
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226 | setAccessProperties(nIfcHandle, (__u8)modifier, LONG_ACCESS); |
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227 | |||
228 | storedError = VMEwrite(nIfcHandle, adr, LONG_ACCESS, 1, &value); |
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229 | } |
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230 | } |
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231 | |||
232 | //------------------------------------------------------------------------------------------- |
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233 | // check for a pending SYSFAIL |
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234 | // |
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235 | unsigned short PollSfail(int nIfcHandle) |
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236 | { |
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237 | BOOLEAN bResult; |
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238 | |||
239 | VMEsysfailGet(nIfcHandle, &bResult); |
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240 | |||
241 | return (unsigned short)bResult; |
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242 | } |
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243 | |||
244 | //------------------------------------------------------------------------------------------- |
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245 | // clear a interface set SYSFAIL |
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246 | // |
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247 | void ClrSfail(int nIfcHandle) |
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248 | { |
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249 | VMEsysfailSet(nIfcHandle, 0); |
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250 | } |
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251 | |||
252 | //------------------------------------------------------------------------------------------- |
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253 | // set a SYSFAIL |
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254 | // |
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255 | void SetSfail(int nIfcHandle) |
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256 | { |
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257 | VMEsysfailSet(nIfcHandle, 1); |
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258 | } |
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259 | |||
260 | //------------------------------------------------------------------------------------------- |
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261 | // read a interrupt vector as byte/word/long (if supported) |
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262 | // |
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263 | char ReadVectorByte(int nIfcHandle) |
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264 | { |
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265 | __u8 ubVector; |
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266 | |||
267 | VMEinterrupt(nIfcHandle, &ubVector); |
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268 | |||
269 | return ubVector; |
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270 | } |
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271 | |||
272 | short ReadVectorWord(int nIfcHandle) |
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273 | { |
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274 | printf("Word read of a vector not available!\n"); |
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275 | return 0; |
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276 | } |
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277 | |||
278 | long ReadVectorLong(int nIfcHandle) |
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279 | { |
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280 | printf("Longword read of a vector not available!\n"); |
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281 | return 0; |
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282 | } |
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283 | |||
284 | //------------------------------------------------------------------------------------------- |
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285 | // emulate a 68K TAS (read/modify/write) instruction |
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286 | // |
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287 | char TAS(int nIfcHandle, unsigned long adr, unsigned short modifier) |
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288 | { |
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289 | __u8 ubResult = 0x80; |
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290 | |||
291 | VMETAS(nIfcHandle, adr, &ubResult); |
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292 | |||
293 | return ubResult; // check if a read reads a lock |
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294 | } |
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295 | |||
296 | //------------------------------------------------------------------------------------------- |
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297 | // generate a SYSRESET on the vmebus and re-init the interface |
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298 | // |
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299 | void Reset_VME(int nIfcHandle) |
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300 | { |
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301 | VMEreset(nIfcHandle); |
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302 | } |
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303 | |||
304 | |||
305 | //------------------------------------------------------------------------------------------- |
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306 | // print out some interface special info |
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307 | // |
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308 | void GetInterfaceInfo(int nIfcHandle, char type) |
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309 | { |
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310 | switch (type) |
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311 | { |
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312 | } |
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313 | } |
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314 | |||
315 | //------------------------------------------------------------------------------------------- |
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316 | //------------------------------------------------------------------------------------------- |
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317 | //------------------------------------------------------------------------------------------- |