project/commands/cmd_sd_dir.c

   1 /**************************************************************************/
   2 /*!
   3     @file     cmd_sd_dir.c
   4     @author   K. Townsend (microBuilder.eu)
   5
   6     @brief    Code to execute for cmd_sd_dir in the 'core/cmd'
   7               command-line interpretter.
   8
   9     @section LICENSE
  10
  11     Software License Agreement (BSD License)
  12
  13     Copyright (c) 2010, microBuilder SARL
  14     All rights reserved.
  15
  16     Redistribution and use in source and binary forms, with or without
  17     modification, are permitted provided that the following conditions are met:
  18     1. Redistributions of source code must retain the above copyright
  19     notice, this list of conditions and the following disclaimer.
  20     2. Redistributions in binary form must reproduce the above copyright
  21     notice, this list of conditions and the following disclaimer in the
  22     documentation and/or other materials provided with the distribution.
  23     3. Neither the name of the copyright holders nor the
  24     names of its contributors may be used to endorse or promote products
  25     derived from this software without specific prior written permission.
  26
  27     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
  28     EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  29     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  30     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
  31     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  32     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  33     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  34     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  35     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  36     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  37 */
  38 /**************************************************************************/
  39 #include <stdio.h>
  40 #include <string.h>
  41
  42 #include "projectconfig.h"
  43 #include "core/cmd/cmd.h"
  44 #include "project/commands.h"           // Generic helper functions
  45
  46 #ifdef CFG_SDCARD
  47   #include "core/timer32/timer32.h"
  48   #include "core/ssp/ssp.h"
  49   #include "drivers/fatfs/diskio.h"
  50   #include "drivers/fatfs/ff.h"
  51
  52   static FILINFO Finfo;
  53   static FATFS Fatfs[1];
  54
  55 /**************************************************************************/
  56 /*!
  57     sd 'dir' command handler
  58
  59     This demonstrates how to initialise the SD card, read the contents
  60     of a directory (including checking if an entry is a folder or a file),
  61     and checking the amount of freespace on available on the disk.
  62 */
  63 /**************************************************************************/
  64 void cmd_sd_dir(uint8_t argc, char **argv)
  65 {
  66   char* path;
  67
  68   // Display root folder by default
  69   path = argc > 0 ? argv[0] : "/";
  70
  71   // Initialise SD Card
  72   DSTATUS stat;
  73   stat = disk_initialize(0);
  74   if (stat & STA_NOINIT)
  75   {
  76     printf("SD init failed%s", CFG_PRINTF_NEWLINE);
  77   }
  78   if (stat & STA_NODISK)
  79   {
  80     printf("No SD card%s", CFG_PRINTF_NEWLINE);
  81   }
  82   if (stat == 0)
  83   {
  84     BYTE res;
  85     DIR dir;
  86
  87     // Try to mount drive
  88     res = f_mount(0, &Fatfs[0]);
  89     if (res != FR_OK)
  90     {
  91       printf("Failed to mount partition%s" , CFG_PRINTF_NEWLINE);
  92     }
  93     if (res == FR_OK)
  94     {
  95       res = f_opendir(&dir, path);
  96       if (res)
  97       {
  98           printf("Failed to open '%s' %s", path, CFG_PRINTF_NEWLINE);
  99           return;
 100       }
 101
 102       // Display directory name
 103       printf("%s Contents of %s %s%s", CFG_PRINTF_NEWLINE, path, CFG_PRINTF_NEWLINE, CFG_PRINTF_NEWLINE);
 104       printf("       %-25s %12s %s", "Filename", "Size", CFG_PRINTF_NEWLINE);
 105       printf("       %-25s %12s %s", "--------", "----", CFG_PRINTF_NEWLINE);
 106
 107       // Read directory contents
 108       int folderBytes = 0;
 109       for(;;)
 110       {
 111           res = f_readdir(&dir, &Finfo);
 112           if ((res != FR_OK) || !Finfo.fname[0]) break;
 113           #if _USE_LFN == 0
 114             if (Finfo.fattrib & AM_DIR)
 115               printf(" <DIR> %-25s %s", (char *)&Finfo.fname[0], CFG_PRINTF_NEWLINE);
 116             else
 117               printf("       %-25s %12d Bytes %s", (char *)&Finfo.fname[0], (int)(Finfo.fsize), CFG_PRINTF_NEWLINE);
 118               folderBytes += Finfo.fsize;
 119           #else
 120             // ToDo
 121           #endif
 122       }
 123
 124       // Display folder size
 125       printf("%s", CFG_PRINTF_NEWLINE);
 126       printf("       %-25s %12d KB %s", "Folder Size: ", (int)(folderBytes / 1024), CFG_PRINTF_NEWLINE);
 127
 128       // Get free disk space (only available if FATFS was compiled with _FS_MINIMIZE set to 0)
 129       #if _FS_MINIMIZE == 0 && _FS_READONLY == 0
 130         FATFS *fs = &Fatfs[0];
 131         DWORD clust;
 132
 133         // Get free clusters
 134         res = f_getfree("0:", &clust, &fs);
 135
 136         // Display total and free space
 137         printf("       %-25s %12d KB %s", "Disk Size: ", (int)((DWORD)(fs->max_clust - 2) * fs->csize / 2), CFG_PRINTF_NEWLINE);
 138         printf("       %-25s %12d KB %s", "Space Available: ", (int)(clust * fs->csize / 2), CFG_PRINTF_NEWLINE);
 139       #endif
 140     }
 141   }
 142 }
 143
 144 #endif