Eric Lee / smarc-uboot

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cmd/sysboot.c 2.73 KB
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993c912d3   Patrice Chotard   cmd: sysboot: Cre... 
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  // SPDX-License-Identifier: GPL-2.0+
  
  #include <common.h>
  #include <command.h>
  #include <env.h>
  #include <fs.h>
  #include "pxe_utils.h"
  
  static char *fs_argv[5];
  
  static int do_get_ext2(cmd_tbl_t *cmdtp, const char *file_path, char *file_addr)
  {
  #ifdef CONFIG_CMD_EXT2
  	fs_argv[0] = "ext2load";
  	fs_argv[3] = file_addr;
  	fs_argv[4] = (void *)file_path;
  
  	if (!do_ext2load(cmdtp, 0, 5, fs_argv))
  		return 1;
  #endif
  	return -ENOENT;
  }
  
  static int do_get_fat(cmd_tbl_t *cmdtp, const char *file_path, char *file_addr)
  {
  #ifdef CONFIG_CMD_FAT
  	fs_argv[0] = "fatload";
  	fs_argv[3] = file_addr;
  	fs_argv[4] = (void *)file_path;
  
  	if (!do_fat_fsload(cmdtp, 0, 5, fs_argv))
  		return 1;
  #endif
  	return -ENOENT;
  }
  
  static int do_get_any(cmd_tbl_t *cmdtp, const char *file_path, char *file_addr)
  {
  #ifdef CONFIG_CMD_FS_GENERIC
  	fs_argv[0] = "load";
  	fs_argv[3] = file_addr;
  	fs_argv[4] = (void *)file_path;
  
  	if (!do_load(cmdtp, 0, 5, fs_argv, FS_TYPE_ANY))
  		return 1;
  #endif
  	return -ENOENT;
  }
  
  /*
   * Boots a system using a local disk syslinux/extlinux file
   *
   * Returns 0 on success, 1 on error.
   */
  static int do_sysboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  {
  	unsigned long pxefile_addr_r;
  	struct pxe_menu *cfg;
  	char *pxefile_addr_str;
  	char *filename;
  	int prompt = 0;
  
  	is_pxe = false;
  
  	if (argc > 1 && strstr(argv[1], "-p")) {
  		prompt = 1;
  		argc--;
  		argv++;
  	}
  
  	if (argc < 4)
  		return cmd_usage(cmdtp);
  
  	if (argc < 5) {
  		pxefile_addr_str = from_env("pxefile_addr_r");
  		if (!pxefile_addr_str)
  			return 1;
  	} else {
  		pxefile_addr_str = argv[4];
  	}
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  	if (argc < 6) {
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  		filename = env_get("bootfile");
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  	} else {
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  		filename = argv[5];
  		env_set("bootfile", filename);
  	}
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  	if (strstr(argv[3], "ext2")) {
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  		do_getfile = do_get_ext2;
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  	} else if (strstr(argv[3], "fat")) {
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  		do_getfile = do_get_fat;
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  	} else if (strstr(argv[3], "any")) {
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  		do_getfile = do_get_any;
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  	} else {
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  		printf("Invalid filesystem: %s
  ", argv[3]);
  		return 1;
  	}
  	fs_argv[1] = argv[1];
  	fs_argv[2] = argv[2];
  
  	if (strict_strtoul(pxefile_addr_str, 16, &pxefile_addr_r) < 0) {
  		printf("Invalid pxefile address: %s
  ", pxefile_addr_str);
  		return 1;
  	}
  
  	if (get_pxe_file(cmdtp, filename, pxefile_addr_r) < 0) {
  		printf("Error reading config file
  ");
  		return 1;
  	}
  
  	cfg = parse_pxefile(cmdtp, pxefile_addr_r);
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  	if (!cfg) {
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  		printf("Error parsing config file
  ");
  		return 1;
  	}
  
  	if (prompt)
  		cfg->prompt = 1;
  
  	handle_pxe_menu(cmdtp, cfg);
  
  	destroy_pxe_menu(cfg);
  
  	return 0;
  }
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  U_BOOT_CMD(sysboot, 7, 1, do_sysboot,
  	   "command to get and boot from syslinux files",
  	   "[-p] <interface> <dev[:part]> <ext2|fat|any> [addr] [filename]
  "
  	   "    - load and parse syslinux menu file 'filename' from ext2, fat
  "
  	   "      or any filesystem on 'dev' on 'interface' to address 'addr'"
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  );