1 | /************************************************************************** |
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2 | * |
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3 | * Copyright (c) 2013 Alcatel-Lucent |
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4 | * |
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5 | * Alcatel Lucent licenses this file to You under the Apache License, |
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6 | * Version 2.0 (the "License"); you may not use this file except in |
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7 | * compliance with the License. A copy of the License is contained the |
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8 | * file LICENSE at the top level of this repository. |
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9 | * You may also obtain a copy of the License at: |
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10 | * |
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11 | * http://www.apache.org/licenses/LICENSE-2.0 |
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12 | * |
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13 | * Unless required by applicable law or agreed to in writing, software |
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14 | * distributed under the License is distributed on an "AS IS" BASIS, |
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15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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16 | * See the License for the specific language governing permissions and |
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17 | * limitations under the License. |
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18 | * |
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19 | ************************************************************************** |
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20 | * |
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21 | * cf.c: |
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22 | * This code is the user interface portion of the cf (compact flash) |
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23 | * command for uMon. |
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24 | * This command is intended to be the "interface" portion of some |
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25 | * other command (for example "fatfs"). Refer to the discussion in |
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26 | * fatfs.c for more details. |
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27 | * |
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28 | * Original author: Ed Sutter (ed.sutter@alcatel-lucent.com) |
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29 | * |
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30 | */ |
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31 | |
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32 | #include "config.h" |
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33 | #if INCLUDE_CF |
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34 | #include "stddefs.h" |
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35 | #include "genlib.h" |
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36 | #include "cli.h" |
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37 | #include "tfs.h" |
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38 | #include "tfsprivate.h" |
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39 | #include "cf.h" |
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40 | |
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41 | |
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42 | char *CfHelp[] = { |
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43 | "Compact Flash Interface", |
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44 | "[options] {operation} [args]...", |
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45 | #if INCLUDE_VERBOSEHELP |
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46 | "", |
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47 | "Options:", |
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48 | " -v enable verbosity", |
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49 | "", |
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50 | "Operations:", |
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51 | " init [prefix]", |
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52 | " read {dest} {blk} {blktot}", |
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53 | " write {blk} {src} {blktot}", |
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54 | #endif |
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55 | 0 |
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56 | }; |
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57 | |
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58 | static int cfInum; /* Interface number: to support multiple CF interfaces. |
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59 | * Typically this will always be zero. |
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60 | */ |
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61 | |
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62 | int |
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63 | CfCmd(int argc, char *argv[]) |
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64 | { |
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65 | char *cmd, *buf, *prefix, varname[16]; |
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66 | int opt, verbose, cfret, blknum, blkcnt; |
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67 | |
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68 | verbose = 0; |
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69 | while ((opt=getopt(argc,argv,"i:r:w:v")) != -1) { |
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70 | switch(opt) { |
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71 | case 'i': |
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72 | cfInum = atoi(optarg); /* sticky */ |
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73 | break; |
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74 | case 'v': |
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75 | verbose = 1; |
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76 | break; |
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77 | default: |
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78 | return(CMD_PARAM_ERROR); |
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79 | } |
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80 | } |
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81 | |
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82 | if (argc < optind + 1) |
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83 | return(CMD_PARAM_ERROR); |
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84 | |
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85 | cmd = argv[optind]; |
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86 | |
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87 | if (strcmp(cmd,"init") == 0) { |
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88 | if (argc != optind+2) |
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89 | return(CMD_PARAM_ERROR); |
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90 | |
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91 | prefix = argv[optind+1]; |
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92 | if (strlen(prefix)+4 > sizeof(varname)) { |
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93 | printf("prefix %s too long\n",prefix); |
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94 | return(CMD_PARAM_ERROR); |
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95 | } |
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96 | |
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97 | cfret = cfInit(cfInum,verbose); |
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98 | if (cfret < 0) { |
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99 | printf("cfInit returned %d\n",cfret); |
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100 | return(CMD_FAILURE); |
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101 | } |
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102 | |
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103 | sprintf(varname,"%s_RD",prefix); |
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104 | shell_sprintf(varname,"0x%lx",(long)cfRead); |
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105 | |
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106 | sprintf(varname,"%s_WR",prefix); |
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107 | shell_sprintf(varname,"0x%lx",(long)cfWrite); |
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108 | |
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109 | shell_sprintf("CF_BLKSIZ","0x%lx",CF_BLKSIZE); |
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110 | |
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111 | if (verbose) { |
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112 | printf("read: 0x%lx, write: 0x%lx, blksiz: 0x%lx\n", |
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113 | (long)cfRead,(long)cfWrite,(long)CF_BLKSIZE,verbose); |
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114 | } |
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115 | } |
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116 | else if (strcmp(cmd,"read") == 0) { |
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117 | if (argc != optind+4) |
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118 | return(CMD_PARAM_ERROR); |
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119 | |
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120 | buf = (char *)strtoul(argv[optind+1],0,0); |
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121 | blknum = strtoul(argv[optind+2],0,0); |
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122 | blkcnt = strtoul(argv[optind+3],0,0); |
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123 | |
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124 | cfret = cfRead(cfInum,buf,blknum,blkcnt,verbose); |
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125 | if (cfret < 0) { |
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126 | printf("cfRead returned %d\n",cfret); |
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127 | return(CMD_FAILURE); |
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128 | } |
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129 | } |
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130 | else if (strcmp(cmd,"write") == 0) { |
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131 | if (argc != optind+4) |
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132 | return(CMD_PARAM_ERROR); |
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133 | buf = (char *)strtoul(argv[optind+1],0,0); |
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134 | blknum = strtoul(argv[optind+2],0,0); |
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135 | blkcnt = strtoul(argv[optind+3],0,0); |
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136 | |
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137 | cfret = cfWrite(cfInum,buf,blknum,blkcnt,verbose); |
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138 | if (cfret < 0) { |
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139 | printf("cfWrite returned %d\n",cfret); |
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140 | return(CMD_FAILURE); |
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141 | } |
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142 | } |
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143 | else { |
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144 | printf("cf op <%s> not found\n",cmd); |
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145 | return(CMD_FAILURE); |
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146 | } |
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147 | |
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148 | return(CMD_SUCCESS); |
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149 | } |
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150 | |
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151 | #ifdef INCLUDE_CF_DUMMY_FUNCS |
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152 | /* This code is included here just for simulating the CF |
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153 | * interface (temporarily if a real one isn't ready. In a real system, |
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154 | * the INCLUDE_CF_DUMMY_FUNCS definition would be off. |
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155 | */ |
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156 | |
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157 | int |
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158 | cfInit(int interface, int verbose) |
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159 | { |
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160 | if (interface != 0) { |
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161 | if (verbose) |
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162 | printf("cfInit bad interface %d\n",interface); |
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163 | return(-1); |
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164 | } |
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165 | |
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166 | return(0); |
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167 | } |
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168 | |
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169 | int |
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170 | cfRead(int interface, char *buf, int blk, int blkcnt, int verbose) |
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171 | { |
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172 | char *from; |
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173 | int size; |
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174 | |
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175 | if (interface != 0) { |
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176 | if (verbose) |
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177 | printf("cfRead bad interface %d\n",interface); |
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178 | return(-1); |
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179 | } |
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180 | |
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181 | from = (char *)(blk * CF_BLKSIZE); |
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182 | size = blkcnt * CF_BLKSIZE; |
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183 | memcpy(buf,from,size); |
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184 | return(0); |
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185 | } |
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186 | |
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187 | int |
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188 | cfWrite(int interface, char *buf, int blk, int blkcnt, int verbose) |
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189 | { |
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190 | char *to; |
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191 | int size; |
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192 | |
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193 | if (interface != 0) { |
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194 | if (verbose) |
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195 | printf("cfWrite bad interface %d\n",interface); |
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196 | return(-1); |
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197 | } |
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198 | |
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199 | to = (char *)(blk * CF_BLKSIZE); |
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200 | size = blkcnt * CF_BLKSIZE; |
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201 | memcpy(to,buf,size); |
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202 | return(0); |
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203 | } |
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204 | |
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205 | #endif |
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206 | |
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207 | #endif |
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