LXR uboot/common/cmd

   1/*
   2 * SPDX-License-Identifier:     GPL-2.0+
   3 *
   4 * based on: cmd_jffs2.c
   5 *
   6 *      Add support for a CRAMFS located in RAM
   7 */
   8
   9
  10/*
  11 * CRAMFS support
  12 */
  13#include <common.h>
  14#include <command.h>
  15#include <malloc.h>
  16#include <linux/list.h>
  17#include <linux/ctype.h>
  18#include <jffs2/jffs2.h>
  19#include <jffs2/load_kernel.h>
  20#include <cramfs/cramfs_fs.h>
  21
  22/* enable/disable debugging messages */
  23#define DEBUG_CRAMFS
  24#undef  DEBUG_CRAMFS
  25
  26#ifdef  DEBUG_CRAMFS
  27# define DEBUGF(fmt, args...)   printf(fmt ,##args)
  28#else
  29# define DEBUGF(fmt, args...)
  30#endif
  31
  32#ifdef CONFIG_CRAMFS_CMDLINE
  33#include <flash.h>
  34
  35#ifdef CONFIG_SYS_NO_FLASH
  36# define OFFSET_ADJUSTMENT      0
  37#else
  38# define OFFSET_ADJUSTMENT      (flash_info[id.num].start[0])
  39#endif
  40
  41#ifndef CONFIG_CMD_JFFS2
  42#include <linux/stat.h>
  43char *mkmodestr(unsigned long mode, char *str)
  44{
  45        static const char *l = "xwr";
  46        int mask = 1, i;
  47        char c;
  48
  49        switch (mode & S_IFMT) {
  50                case S_IFDIR:    str[0] = 'd'; break;
  51                case S_IFBLK:    str[0] = 'b'; break;
  52                case S_IFCHR:    str[0] = 'c'; break;
  53                case S_IFIFO:    str[0] = 'f'; break;
  54                case S_IFLNK:    str[0] = 'l'; break;
  55                case S_IFSOCK:   str[0] = 's'; break;
  56                case S_IFREG:    str[0] = '-'; break;
  57                default:         str[0] = '?';
  58        }
  59
  60        for(i = 0; i < 9; i++) {
  61                c = l[i%3];
  62                str[9-i] = (mode & mask)?c:'-';
  63                mask = mask<<1;
  64        }
  65
  66        if(mode & S_ISUID) str[3] = (mode & S_IXUSR)?'s':'S';
  67        if(mode & S_ISGID) str[6] = (mode & S_IXGRP)?'s':'S';
  68        if(mode & S_ISVTX) str[9] = (mode & S_IXOTH)?'t':'T';
  69        str[10] = '\0';
  70        return str;
  71}
  72#endif /* CONFIG_CMD_JFFS2 */
  73
  74extern int cramfs_check (struct part_info *info);
  75extern int cramfs_load (char *loadoffset, struct part_info *info, char *filename);
  76extern int cramfs_ls (struct part_info *info, char *filename);
  77extern int cramfs_info (struct part_info *info);
  78
  79/***************************************************/
  80/* U-boot commands                                 */
  81/***************************************************/
  82
  83/**
  84 * Routine implementing fsload u-boot command. This routine tries to load
  85 * a requested file from cramfs filesystem at location 'cramfsaddr'.
  86 * cramfsaddr is an evironment variable.
  87 *
  88 * @param cmdtp command internal data
  89 * @param flag command flag
  90 * @param argc number of arguments supplied to the command
  91 * @param argv arguments list
  92 * @return 0 on success, 1 otherwise
  93 */
  94int do_cramfs_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  95{
  96        char *filename;
  97        int size;
  98        ulong offset = load_addr;
  99
 100        struct part_info part;
 101        struct mtd_device dev;
 102        struct mtdids id;
 103
 104        ulong addr;
 105        addr = simple_strtoul(getenv("cramfsaddr"), NULL, 16);
 106
 107        /* hack! */
 108        /* cramfs_* only supports NOR flash chips */
 109        /* fake the device type */
 110        id.type = MTD_DEV_TYPE_NOR;
 111        id.num = 0;
 112        dev.id = &id;
 113        part.dev = &dev;
 114        /* fake the address offset */
 115        part.offset = addr - OFFSET_ADJUSTMENT;
 116
 117        /* pre-set Boot file name */
 118        if ((filename = getenv("bootfile")) == NULL) {
 119                filename = "uImage";
 120        }
 121
 122        if (argc == 2) {
 123                filename = argv[1];
 124        }
 125        if (argc == 3) {
 126                offset = simple_strtoul(argv[1], NULL, 0);
 127                load_addr = offset;
 128                filename = argv[2];
 129        }
 130
 131        size = 0;
 132        if (cramfs_check(&part))
 133                size = cramfs_load ((char *) offset, &part, filename);
 134
 135        if (size > 0) {
 136                printf("### CRAMFS load complete: %d bytes loaded to 0x%lx\n",
 137                        size, offset);
 138                setenv_hex("filesize", size);
 139        } else {
 140                printf("### CRAMFS LOAD ERROR<%x> for %s!\n", size, filename);
 141        }
 142
 143        return !(size > 0);
 144}
 145
 146/**
 147 * Routine implementing u-boot ls command which lists content of a given
 148 * directory at location 'cramfsaddr'.
 149 * cramfsaddr is an evironment variable.
 150 *
 151 * @param cmdtp command internal data
 152 * @param flag command flag
 153 * @param argc number of arguments supplied to the command
 154 * @param argv arguments list
 155 * @return 0 on success, 1 otherwise
 156 */
 157int do_cramfs_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 158{
 159        char *filename = "/";
 160        int ret;
 161        struct part_info part;
 162        struct mtd_device dev;
 163        struct mtdids id;
 164
 165        ulong addr;
 166        addr = simple_strtoul(getenv("cramfsaddr"), NULL, 16);
 167
 168        /* hack! */
 169        /* cramfs_* only supports NOR flash chips */
 170        /* fake the device type */
 171        id.type = MTD_DEV_TYPE_NOR;
 172        id.num = 0;
 173        dev.id = &id;
 174        part.dev = &dev;
 175        /* fake the address offset */
 176        part.offset = addr - OFFSET_ADJUSTMENT;
 177
 178        if (argc == 2)
 179                filename = argv[1];
 180
 181        ret = 0;
 182        if (cramfs_check(&part))
 183                ret = cramfs_ls (&part, filename);
 184
 185        return ret ? 0 : 1;
 186}
 187
 188/* command line only */
 189
 190/***************************************************/
 191U_BOOT_CMD(
 192        cramfsload,     3,      0,      do_cramfs_load,
 193        "load binary file from a filesystem image",
 194        "[ off ] [ filename ]\n"
 195        "    - load binary file from address 'cramfsaddr'\n"
 196        "      with offset 'off'\n"
 197);
 198U_BOOT_CMD(
 199        cramfsls,       2,      1,      do_cramfs_ls,
 200        "list files in a directory (default /)",
 201        "[ directory ]\n"
 202        "    - list files in a directory.\n"
 203);
 204
 205#endif /* #ifdef CONFIG_CRAMFS_CMDLINE */
 206
 207/***************************************************/
 208