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Diffstat (limited to 'u-boot/common/cmd_nvedit.c')
| -rw-r--r-- | u-boot/common/cmd_nvedit.c | 941 |
1 files changed, 941 insertions, 0 deletions
diff --git a/u-boot/common/cmd_nvedit.c b/u-boot/common/cmd_nvedit.c new file mode 100644 index 0000000..fb69c24 --- /dev/null +++ b/u-boot/common/cmd_nvedit.c @@ -0,0 +1,941 @@ +/* + * (C) Copyright 2000-2010 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Andreas Heppel <aheppel@sysgo.de> + + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* + * Support for persistent environment data + * + * The "environment" is stored on external storage as a list of '\0' + * terminated "name=value" strings. The end of the list is marked by + * a double '\0'. The environment is preceeded by a 32 bit CRC over + * the data part and, in case of redundant environment, a byte of + * flags. + * + * This linearized representation will also be used before + * relocation, i. e. as long as we don't have a full C runtime + * environment. After that, we use a hash table. + */ + +#include <common.h> +#include <command.h> +#include <environment.h> +#include <search.h> +#include <errno.h> +#include <malloc.h> +#include <watchdog.h> +#include <serial.h> +#include <linux/stddef.h> +#include <asm/byteorder.h> +#if defined(CONFIG_CMD_NET) +#include <net.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +#if !defined(CONFIG_ENV_IS_IN_EEPROM) && \ + !defined(CONFIG_ENV_IS_IN_FLASH) && \ + !defined(CONFIG_ENV_IS_IN_DATAFLASH) && \ + !defined(CONFIG_ENV_IS_IN_MG_DISK) && \ + !defined(CONFIG_ENV_IS_IN_MMC) && \ + !defined(CONFIG_ENV_IS_IN_NAND) && \ + !defined(CONFIG_ENV_IS_IN_NVRAM) && \ + !defined(CONFIG_ENV_IS_IN_ONENAND) && \ + !defined(CONFIG_ENV_IS_IN_SPI_FLASH) && \ + !defined(CONFIG_ENV_IS_NOWHERE) +# error Define one of CONFIG_ENV_IS_IN_{EEPROM|FLASH|DATAFLASH|ONENAND|\ +SPI_FLASH|MG_DISK|NVRAM|MMC|NOWHERE} +#endif + +#define XMK_STR(x) #x +#define MK_STR(x) XMK_STR(x) + +/* + * Maximum expected input data size for import command + */ +#define MAX_ENV_SIZE (1 << 20) /* 1 MiB */ + +ulong load_addr = CONFIG_SYS_LOAD_ADDR; /* Default Load Address */ + +/* + * Table with supported baudrates (defined in config_xyz.h) + */ +static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE; +#define N_BAUDRATES (sizeof(baudrate_table) / sizeof(baudrate_table[0])) + +/* + * This variable is incremented on each do_env_set(), so it can + * be used via get_env_id() as an indication, if the environment + * has changed or not. So it is possible to reread an environment + * variable only if the environment was changed ... done so for + * example in NetInitLoop() + */ +static int env_id = 1; + +int get_env_id (void) +{ + return env_id; +} + +/* + * Command interface: print one or all environment variables + * + * Returns 0 in case of error, or length of printed string + */ +static int env_print(char *name) +{ + char *res = NULL; + size_t len; + + if (name) { /* print a single name */ + ENTRY e, *ep; + + e.key = name; + e.data = NULL; + hsearch_r(e, FIND, &ep, &env_htab); + if (ep == NULL) + return 0; + len = printf ("%s=%s\n", ep->key, ep->data); + return len; + } + + /* print whole list */ + len = hexport_r(&env_htab, '\n', &res, 0); + + if (len > 0) { + puts(res); + free(res); + return len; + } + + /* should never happen */ + return 0; +} + +int do_env_print (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int i; + int rcode = 0; + + if (argc == 1) { + /* print all env vars */ + rcode = env_print(NULL); + if (!rcode) + return 1; + printf("\nEnvironment size: %d/%ld bytes\n", + rcode, (ulong)ENV_SIZE); + return 0; + } + + /* print selected env vars */ + for (i = 1; i < argc; ++i) { + int rc = env_print(argv[i]); + if (!rc) { + printf("## Error: \"%s\" not defined\n", argv[i]); + ++rcode; + } + } + + return rcode; +} + +/* + * Set a new environment variable, + * or replace or delete an existing one. + */ + +int _do_env_set (int flag, int argc, char * const argv[]) +{ + bd_t *bd = gd->bd; + int i, len; + int console = -1; + char *name, *value, *s; + ENTRY e, *ep; + + name = argv[1]; + + if (strchr(name, '=')) { + printf ("## Error: illegal character '=' in variable name \"%s\"\n", name); + return 1; + } + + env_id++; + /* + * search if variable with this name already exists + */ + e.key = name; + e.data = NULL; + hsearch_r(e, FIND, &ep, &env_htab); + + /* Check for console redirection */ + if (strcmp(name,"stdin") == 0) { + console = stdin; + } else if (strcmp(name,"stdout") == 0) { + console = stdout; + } else if (strcmp(name,"stderr") == 0) { + console = stderr; + } + + if (console != -1) { + if (argc < 3) { /* Cannot delete it! */ + printf("Can't delete \"%s\"\n", name); + return 1; + } + +#ifdef CONFIG_CONSOLE_MUX + i = iomux_doenv(console, argv[2]); + if (i) + return i; +#else + /* Try assigning specified device */ + if (console_assign (console, argv[2]) < 0) + return 1; + +#ifdef CONFIG_SERIAL_MULTI + if (serial_assign (argv[2]) < 0) + return 1; +#endif +#endif /* CONFIG_CONSOLE_MUX */ + } + + /* + * Some variables like "ethaddr" and "serial#" can be set only + * once and cannot be deleted; also, "ver" is readonly. + */ + if (ep) { /* variable exists */ +#ifndef CONFIG_ENV_OVERWRITE + if ((strcmp (name, "serial#") == 0) || + ((strcmp (name, "ethaddr") == 0) +#if defined(CONFIG_OVERWRITE_ETHADDR_ONCE) && defined(CONFIG_ETHADDR) + && (strcmp (ep->data,MK_STR(CONFIG_ETHADDR)) != 0) +#endif /* CONFIG_OVERWRITE_ETHADDR_ONCE && CONFIG_ETHADDR */ + ) ) { + printf ("Can't overwrite \"%s\"\n", name); + return 1; + } +#endif + /* + * Switch to new baudrate if new baudrate is supported + */ + if (strcmp(name,"baudrate") == 0) { + int baudrate = simple_strtoul(argv[2], NULL, 10); + int i; + for (i=0; i<N_BAUDRATES; ++i) { + if (baudrate == baudrate_table[i]) + break; + } + if (i == N_BAUDRATES) { + printf ("## Baudrate %d bps not supported\n", + baudrate); + return 1; + } + printf ("## Switch baudrate to %d bps and press ENTER ...\n", + baudrate); + udelay(50000); + gd->baudrate = baudrate; +#if defined(CONFIG_PPC) || defined(CONFIG_MCF52x2) + gd->bd->bi_baudrate = baudrate; +#endif + + serial_setbrg (); + udelay(50000); + for (;;) { + if (getc() == '\r') + break; + } + } + } + + /* Delete only ? */ + if ((argc < 3) || argv[2] == NULL) { + int rc = hdelete_r(name, &env_htab); + return !rc; + } + + /* + * Insert / replace new value + */ + for (i=2,len=0; i<argc; ++i) { + len += strlen(argv[i]) + 1; + } + if ((value = malloc(len)) == NULL) { + printf("## Can't malloc %d bytes\n", len); + return 1; + } + for (i=2,s=value; i<argc; ++i) { + char *v = argv[i]; + + while ((*s++ = *v++) != '\0') + ; + *(s-1) = ' '; + } + if (s != value) + *--s = '\0'; + + e.key = name; + e.data = value; + hsearch_r(e, ENTER, &ep, &env_htab); + free(value); + if (!ep) { + printf("## Error inserting \"%s\" variable, errno=%d\n", + name, errno); + return 1; + } + + /* + * Some variables should be updated when the corresponding + * entry in the environment is changed + */ + + if (strcmp(name,"ipaddr") == 0) { + char *s = argv[2]; /* always use only one arg */ + char *e; + unsigned long addr; + bd->bi_ip_addr = 0; + for (addr=0, i=0; i<4; ++i) { + ulong val = s ? simple_strtoul(s, &e, 10) : 0; + addr <<= 8; + addr |= (val & 0xFF); + if (s) s = (*e) ? e+1 : e; + } + bd->bi_ip_addr = htonl(addr); + return 0; + } else if (strcmp(argv[1],"loadaddr") == 0) { + load_addr = simple_strtoul(argv[2], NULL, 16); + return 0; + } +#if defined(CONFIG_CMD_NET) + else if (strcmp(argv[1],"bootfile") == 0) { + copy_filename (BootFile, argv[2], sizeof(BootFile)); + return 0; + } +#endif + return 0; +} + +int setenv (char *varname, char *varvalue) +{ + char * const argv[4] = { "setenv", varname, varvalue, NULL }; + if ((varvalue == NULL) || (varvalue[0] == '\0')) + return _do_env_set(0, 2, argv); + else + return _do_env_set(0, 3, argv); +} + +int do_env_set (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + if (argc < 2) + return cmd_usage(cmdtp); + + return _do_env_set(flag, argc, argv); +} + +/* + * Prompt for environment variable + */ +#if defined(CONFIG_CMD_ASKENV) +int do_env_ask ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + extern char console_buffer[CONFIG_SYS_CBSIZE]; + char message[CONFIG_SYS_CBSIZE]; + int size = CONFIG_SYS_CBSIZE - 1; + int i, len, pos; + char *local_args[4]; + + local_args[0] = argv[0]; + local_args[1] = argv[1]; + local_args[2] = NULL; + local_args[3] = NULL; + + /* Check the syntax */ + switch (argc) { + case 1: + return cmd_usage(cmdtp); + + case 2: /* env_ask envname */ + sprintf(message, "Please enter '%s':", argv[1]); + break; + + case 3: /* env_ask envname size */ + sprintf(message, "Please enter '%s':", argv[1]); + size = simple_strtoul(argv[2], NULL, 10); + break; + + default: /* env_ask envname message1 ... messagen size */ + for (i=2,pos=0; i < argc - 1; i++) { + if (pos) { + message[pos++] = ' '; + } + strcpy(message+pos, argv[i]); + pos += strlen(argv[i]); + } + message[pos] = '\0'; + size = simple_strtoul(argv[argc - 1], NULL, 10); + break; + } + + if (size >= CONFIG_SYS_CBSIZE) + size = CONFIG_SYS_CBSIZE - 1; + + if (size <= 0) + return 1; + + /* prompt for input */ + len = readline(message); + + if (size < len) + console_buffer[size] = '\0'; + + len = 2; + if (console_buffer[0] != '\0') { + local_args[2] = console_buffer; + len = 3; + } + + /* Continue calling setenv code */ + return _do_env_set(flag, len, local_args); +} +#endif + +/* + * Interactively edit an environment variable + */ +#if defined(CONFIG_CMD_EDITENV) +int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + char buffer[CONFIG_SYS_CBSIZE]; + char *init_val; + int len; + + if (argc < 2) + return cmd_usage(cmdtp); + + /* Set read buffer to initial value or empty sting */ + init_val = getenv(argv[1]); + if (init_val) + len = sprintf(buffer, "%s", init_val); + else + buffer[0] = '\0'; + + readline_into_buffer("edit: ", buffer); + + return setenv(argv[1], buffer); +} +#endif /* CONFIG_CMD_EDITENV */ + +/* + * Look up variable from environment, + * return address of storage for that variable, + * or NULL if not found + */ +char *getenv (char *name) +{ + if (gd->flags & GD_FLG_ENV_READY) { /* after import into hashtable */ + ENTRY e, *ep; + + WATCHDOG_RESET(); + + e.key = name; + e.data = NULL; + hsearch_r(e, FIND, &ep, &env_htab); + + return (ep ? ep->data : NULL); + } + + /* restricted capabilities before import */ + + if (getenv_f(name, (char *)(gd->env_buf), sizeof(gd->env_buf)) > 0) + return (char *)(gd->env_buf); + + return NULL; +} + +/* + * Look up variable from environment for restricted C runtime env. + */ +int getenv_f (char *name, char *buf, unsigned len) +{ + int i, nxt; + + for (i=0; env_get_char(i) != '\0'; i=nxt+1) { + int val, n; + + for (nxt=i; env_get_char(nxt) != '\0'; ++nxt) { + if (nxt >= CONFIG_ENV_SIZE) { + return (-1); + } + } + if ((val=envmatch((uchar *)name, i)) < 0) + continue; + + /* found; copy out */ + for (n=0; n<len; ++n, ++buf) { + if ((*buf = env_get_char(val++)) == '\0') + return n; + } + + if (n) + *--buf = '\0'; + + printf("env_buf too small [%d]\n", len); + + return n; + } + return (-1); +} + +#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) + +int do_env_save (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + extern char * env_name_spec; + + printf ("Saving Environment to %s...\n", env_name_spec); + + return (saveenv() ? 1 : 0); +} + +U_BOOT_CMD( + saveenv, 1, 0, do_env_save, + "save environment variables to persistent storage", + "" +); + +#endif + + +/* + * Match a name / name=value pair + * + * s1 is either a simple 'name', or a 'name=value' pair. + * i2 is the environment index for a 'name2=value2' pair. + * If the names match, return the index for the value2, else NULL. + */ + +int envmatch (uchar *s1, int i2) +{ + + while (*s1 == env_get_char(i2++)) + if (*s1++ == '=') + return(i2); + if (*s1 == '\0' && env_get_char(i2-1) == '=') + return(i2); + return(-1); +} + +static int do_env_default(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) +{ + if ((argc != 2) || (strcmp(argv[1], "-f") != 0)) { + return cmd_usage(cmdtp); + } + set_default_env("## Resetting to default environment\n"); + return 0; +} + +static int do_env_delete(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) +{ + printf("Not implemented yet\n"); + return 0; +} + +/* + * env export [-t | -b | -c] addr [size] + * -t: export as text format; if size is given, data will be + * padded with '\0' bytes; if not, one terminating '\0' + * will be added (which is included in the "filesize" + * setting so you can for exmple copy this to flash and + * keep the termination). + * -b: export as binary format (name=value pairs separated by + * '\0', list end marked by double "\0\0") + * -c: export as checksum protected environment format as + * used for example by "saveenv" command + * addr: memory address where environment gets stored + * size: size of output buffer + * + * With "-c" and size is NOT given, then the export command will + * format the data as currently used for the persistent storage, + * i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and + * prepend a valid CRC32 checksum and, in case of resundant + * environment, a "current" redundancy flag. If size is given, this + * value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32 + * checksum and redundancy flag will be inserted. + * + * With "-b" and "-t", always only the real data (including a + * terminating '\0' byte) will be written; here the optional size + * argument will be used to make sure not to overflow the user + * provided buffer; the command will abort if the size is not + * sufficient. Any remainign space will be '\0' padded. + * + * On successful return, the variable "filesize" will be set. + * Note that filesize includes the trailing/terminating '\0' byte(s). + * + * Usage szenario: create a text snapshot/backup of the current settings: + * + * => env export -t 100000 + * => era ${backup_addr} +${filesize} + * => cp.b 100000 ${backup_addr} ${filesize} + * + * Re-import this snapshot, deleting all other settings: + * + * => env import -d -t ${backup_addr} + */ +static int do_env_export(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + char buf[32]; + char *addr, *cmd, *res; + size_t size; + ssize_t len; + env_t *envp; + char sep = '\n'; + int chk = 0; + int fmt = 0; + + cmd = *argv; + + while (--argc > 0 && **++argv == '-') { + char *arg = *argv; + while (*++arg) { + switch (*arg) { + case 'b': /* raw binary format */ + if (fmt++) + goto sep_err; + sep = '\0'; + break; + case 'c': /* external checksum format */ + if (fmt++) + goto sep_err; + sep = '\0'; + chk = 1; + break; + case 't': /* text format */ + if (fmt++) + goto sep_err; + sep = '\n'; + break; + default: + return cmd_usage(cmdtp); + } + } + } + + if (argc < 1) { + return cmd_usage(cmdtp); + } + + addr = (char *)simple_strtoul(argv[0], NULL, 16); + + if (argc == 2) { + size = simple_strtoul(argv[1], NULL, 16); + memset(addr, '\0', size); + } else { + size = 0; + } + + if (sep) { /* export as text file */ + len = hexport_r(&env_htab, sep, &addr, size); + if (len < 0) { + error("Cannot export environment: errno = %d\n", + errno); + return 1; + } + sprintf(buf, "%zX", len); + setenv("filesize", buf); + + return 0; + } + + envp = (env_t *)addr; + + if (chk) /* export as checksum protected block */ + res = (char *)envp->data; + else /* export as raw binary data */ + res = addr; + + len = hexport_r(&env_htab, '\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", + errno); + return 1; + } + + if (chk) { + envp->crc = crc32(0, envp->data, ENV_SIZE); +#ifdef CONFIG_ENV_ADDR_REDUND + envp->flags = ACTIVE_FLAG; +#endif + } + sprintf(buf, "%zX", len + offsetof(env_t,data)); + setenv("filesize", buf); + + return 0; + +sep_err: + printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", + cmd); + return 1; +} + +/* + * env import [-d] [-t | -b | -c] addr [size] + * -d: delete existing environment before importing; + * otherwise overwrite / append to existion definitions + * -t: assume text format; either "size" must be given or the + * text data must be '\0' terminated + * -b: assume binary format ('\0' separated, "\0\0" terminated) + * -c: assume checksum protected environment format + * addr: memory address to read from + * size: length of input data; if missing, proper '\0' + * termination is mandatory + */ +static int do_env_import(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) +{ + char *cmd, *addr; + char sep = '\n'; + int chk = 0; + int fmt = 0; + int del = 0; + size_t size; + + cmd = *argv; + + while (--argc > 0 && **++argv == '-') { + char *arg = *argv; + while (*++arg) { + switch (*arg) { + case 'b': /* raw binary format */ + if (fmt++) + goto sep_err; + sep = '\0'; + break; + case 'c': /* external checksum format */ + if (fmt++) + goto sep_err; + sep = '\0'; + chk = 1; + break; + case 't': /* text format */ + if (fmt++) + goto sep_err; + sep = '\n'; + break; + case 'd': + del = 1; + break; + default: + return cmd_usage(cmdtp); + } + } + } + + if (argc < 1) { + return cmd_usage(cmdtp); + } + + if (!fmt) + printf("## Warning: defaulting to text format\n"); + + addr = (char *)simple_strtoul(argv[0], NULL, 16); + + if (argc == 2) { + size = simple_strtoul(argv[1], NULL, 16); + } else { + char *s = addr; + + size = 0; + + while (size < MAX_ENV_SIZE) { + if ((*s == sep) && (*(s+1) == '\0')) + break; + ++s; + ++size; + } + if (size == MAX_ENV_SIZE) { + printf("## Warning: Input data exceeds %d bytes" + " - truncated\n", MAX_ENV_SIZE); + } + ++size; + printf("## Info: input data size = %zd = 0x%zX\n", size, size); + } + + if (chk) { + uint32_t crc; + env_t *ep = (env_t *)addr; + + size -= offsetof(env_t, data); + memcpy(&crc, &ep->crc, sizeof(crc)); + + if (crc32(0, ep->data, size) != crc) { + puts("## Error: bad CRC, import failed\n"); + return 1; + } + addr = (char *)ep->data; + } + + if (himport_r(&env_htab, addr, size, sep, del ? 0 : H_NOCLEAR) == 0) { + error("Environment import failed: errno = %d\n", errno); + return 1; + } + gd->flags |= GD_FLG_ENV_READY; + + return 0; + +sep_err: + printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n", + cmd); + return 1; +} + +#if defined(CONFIG_CMD_RUN) +extern int do_run (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); +#endif + +/* + * New command line interface: "env" command with subcommands + */ +static cmd_tbl_t cmd_env_sub[] = { +#if defined(CONFIG_CMD_ASKENV) + U_BOOT_CMD_MKENT(ask, CONFIG_SYS_MAXARGS, 1, do_env_ask, "", ""), +#endif + U_BOOT_CMD_MKENT(default, 1, 0, do_env_default, "", ""), + U_BOOT_CMD_MKENT(delete, 2, 0, do_env_delete, "", ""), +#if defined(CONFIG_CMD_EDITENV) + U_BOOT_CMD_MKENT(edit, 2, 0, do_env_edit, "", ""), +#endif + U_BOOT_CMD_MKENT(export, 4, 0, do_env_export, "", ""), + U_BOOT_CMD_MKENT(import, 5, 0, do_env_import, "", ""), + U_BOOT_CMD_MKENT(print, CONFIG_SYS_MAXARGS, 1, do_env_print, "", ""), +#if defined(CONFIG_CMD_RUN) + U_BOOT_CMD_MKENT(run, CONFIG_SYS_MAXARGS, 1, do_run, "", ""), +#endif +#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) + U_BOOT_CMD_MKENT(save, 1, 0, do_env_save, "", ""), +#endif + U_BOOT_CMD_MKENT(set, CONFIG_SYS_MAXARGS, 0, do_env_set, "", ""), +}; + +#if defined(CONFIG_NEEDS_MANUAL_RELOC) +void env_reloc(void) +{ + fixup_cmdtable(cmd_env_sub, ARRAY_SIZE(cmd_env_sub)); +} +#endif + +static int do_env (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + cmd_tbl_t *cp; + + if (argc < 2) + return cmd_usage(cmdtp); + + /* drop initial "env" arg */ + argc--; + argv++; + + cp = find_cmd_tbl(argv[0], cmd_env_sub, ARRAY_SIZE(cmd_env_sub)); + + if (cp) + return cp->cmd(cmdtp, flag, argc, argv); + + return cmd_usage(cmdtp); +} + +U_BOOT_CMD( + env, CONFIG_SYS_MAXARGS, 1, do_env, + "environment handling commands", +#if defined(CONFIG_CMD_ASKENV) + "ask name [message] [size] - ask for environment variable\nenv " +#endif + "default -f - reset default environment\n" +#if defined(CONFIG_CMD_EDITENV) + "env edit name - edit environment variable\n" +#endif + "env export [-t | -b | -c] addr [size] - export environmnt\n" + "env import [-d] [-t | -b | -c] addr [size] - import environmnt\n" + "env print [name ...] - print environment\n" +#if defined(CONFIG_CMD_RUN) + "env run var [...] - run commands in an environment variable\n" +#endif + "env save - save environment\n" + "env set [-f] name [arg ...]\n" +); + +/* + * Old command line interface, kept for compatibility + */ + +#if defined(CONFIG_CMD_EDITENV) +U_BOOT_CMD_COMPLETE( + editenv, 2, 0, do_env_edit, + "edit environment variable", + "name\n" + " - edit environment variable 'name'", + var_complete +); +#endif + +U_BOOT_CMD_COMPLETE( + printenv, CONFIG_SYS_MAXARGS, 1, do_env_print, + "print environment variables", + "\n - print values of all environment variables\n" + "printenv name ...\n" + " - print value of environment variable 'name'", + var_complete +); + +U_BOOT_CMD_COMPLETE( + setenv, CONFIG_SYS_MAXARGS, 0, do_env_set, + "set environment variables", + "name value ...\n" + " - set environment variable 'name' to 'value ...'\n" + "setenv name\n" + " - delete environment variable 'name'", + var_complete +); + +#if defined(CONFIG_CMD_ASKENV) + +U_BOOT_CMD( + askenv, CONFIG_SYS_MAXARGS, 1, do_env_ask, + "get environment variables from stdin", + "name [message] [size]\n" + " - get environment variable 'name' from stdin (max 'size' chars)\n" + "askenv name\n" + " - get environment variable 'name' from stdin\n" + "askenv name size\n" + " - get environment variable 'name' from stdin (max 'size' chars)\n" + "askenv name [message] size\n" + " - display 'message' string and get environment variable 'name'" + "from stdin (max 'size' chars)" +); +#endif + +#if defined(CONFIG_CMD_RUN) +U_BOOT_CMD_COMPLETE( + run, CONFIG_SYS_MAXARGS, 1, do_run, + "run commands in an environment variable", + "var [...]\n" + " - run the commands in the environment variable(s) 'var'", + var_complete +); +#endif |