#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;
*/
#define MAX_ENV_SIZE (1 << 20) /* 1 MiB */
-ulong load_addr = CONFIG_SYS_LOAD_ADDR; /* Default Load Address */
-ulong save_addr; /* Default Save Address */
-ulong save_size; /* Default Save Size (in bytes) */
-
-/*
- * 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
*
* Returns 0 in case of error, or length of printed string
*/
-static int env_print(char *name)
+static int env_print(char *name, int flag)
{
char *res = NULL;
size_t len;
e.key = name;
e.data = NULL;
- hsearch_r(e, FIND, &ep, &env_htab);
+ hsearch_r(e, FIND, &ep, &env_htab, flag);
if (ep == NULL)
return 0;
len = printf("%s=%s\n", ep->key, ep->data);
}
/* print whole list */
- len = hexport_r(&env_htab, '\n', &res, 0, 0, NULL);
+ len = hexport_r(&env_htab, '\n', flag, &res, 0, 0, NULL);
if (len > 0) {
puts(res);
return 0;
}
-int do_env_print (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_env_print(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
{
int i;
int rcode = 0;
+ int env_flag = H_HIDE_DOT;
+
+ if (argc > 1 && argv[1][0] == '-' && argv[1][1] == 'a') {
+ argc--;
+ argv++;
+ env_flag &= ~H_HIDE_DOT;
+ }
if (argc == 1) {
/* print all env vars */
- rcode = env_print(NULL);
+ rcode = env_print(NULL, env_flag);
if (!rcode)
return 1;
printf("\nEnvironment size: %d/%ld bytes\n",
}
/* print selected env vars */
+ env_flag &= ~H_HIDE_DOT;
for (i = 1; i < argc; ++i) {
- int rc = env_print(argv[i]);
+ int rc = env_print(argv[i], env_flag);
if (!rc) {
printf("## Error: \"%s\" not defined\n", argv[i]);
++rcode;
* overwriting of write-once variables.
*/
-int env_check_apply(const char *name, const char *oldval,
- const char *newval, int flag)
+int env_change_ok(const ENTRY *item, const char *newval, enum env_op op,
+ int flag)
{
- int console = -1;
-
- /* Default value for NULL to protect string-manipulating functions */
- newval = newval ? : "";
-
- /* 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 ((newval == NULL) || (*newval == '\0')) {
- /* We cannot delete stdin/stdout/stderr */
- if ((flag & H_FORCE) == 0)
- printf("Can't delete \"%s\"\n", name);
- return 1;
- }
+#ifndef CONFIG_ENV_OVERWRITE
+ const char *name;
+#if defined(CONFIG_OVERWRITE_ETHADDR_ONCE) && defined(CONFIG_ETHADDR)
+ const char *oldval = NULL;
-#ifdef CONFIG_CONSOLE_MUX
- if (iomux_doenv(console, newval))
- return 1;
-#else
- /* Try assigning specified device */
- if (console_assign(console, newval) < 0)
- return 1;
+ if (op != env_op_create)
+ oldval = item->data;
+#endif
- if (serial_assign(newval) < 0)
- return 1;
-#endif /* CONFIG_CONSOLE_MUX */
- }
+ name = item->key;
+#endif
+#ifndef CONFIG_ENV_OVERWRITE
/*
* Some variables like "ethaddr" and "serial#" can be set only once and
* cannot be deleted, unless CONFIG_ENV_OVERWRITE is defined.
*/
-#ifndef CONFIG_ENV_OVERWRITE
- if (oldval != NULL && /* variable exists */
+ if (op != env_op_create && /* variable exists */
(flag & H_FORCE) == 0) { /* and we are not forced */
if (strcmp(name, "serial#") == 0 ||
(strcmp(name, "ethaddr") == 0
}
}
#endif
- /*
- * When we change baudrate, or we are doing an env default -a
- * (which will erase all variables prior to calling this),
- * we want the baudrate to actually change - for real.
- */
- if (oldval != NULL || /* variable exists */
- (flag & H_NOCLEAR) == 0) { /* or env is clear */
- /*
- * Switch to new baudrate if new baudrate is supported
- */
- if (strcmp(name, "baudrate") == 0) {
- int baudrate = simple_strtoul(newval, NULL, 10);
- int i;
- for (i = 0; i < N_BAUDRATES; ++i) {
- if (baudrate == baudrate_table[i])
- break;
- }
- if (i == N_BAUDRATES) {
- if ((flag & H_FORCE) == 0)
- printf("## Baudrate %d bps not "
- "supported\n", baudrate);
- return 1;
- }
- if (gd->baudrate == baudrate) {
- /* If unchanged, we just say it's OK */
- return 0;
- }
- 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);
- while (getc() != '\r')
- ;
- }
- }
-
- /*
- * Some variables should be updated when the corresponding
- * entry in the environment is changed
- */
- if (strcmp(name, "loadaddr") == 0) {
- load_addr = simple_strtoul(newval, NULL, 16);
- return 0;
- }
-#if defined(CONFIG_CMD_NET)
- else if (strcmp(name, "bootfile") == 0) {
- copy_filename(BootFile, newval, sizeof(BootFile));
- return 0;
- }
-#endif
return 0;
}
* Set a new environment variable,
* or replace or delete an existing one.
*/
-int _do_env_set(int flag, int argc, char * const argv[])
+static int _do_env_set(int flag, int argc, char * const argv[])
{
int i, len;
char *name, *value, *s;
}
env_id++;
- /*
- * search if variable with this name already exists
- */
- e.key = name;
- e.data = NULL;
- hsearch_r(e, FIND, &ep, &env_htab);
-
- /*
- * Perform requested checks. Notice how since we are overwriting
- * a single variable, we need to set H_NOCLEAR
- */
- if (env_check_apply(name, ep ? ep->data : NULL, value, H_NOCLEAR)) {
- debug("check function did not approve, refusing\n");
- return 1;
- }
/* Delete only ? */
if (argc < 3 || argv[2] == NULL) {
- int rc = hdelete_r(name, &env_htab, 0);
+ int rc = hdelete_r(name, &env_htab, H_INTERACTIVE);
return !rc;
}
e.key = name;
e.data = value;
- hsearch_r(e, ENTER, &ep, &env_htab);
+ hsearch_r(e, ENTER, &ep, &env_htab, H_INTERACTIVE);
free(value);
if (!ep) {
printf("## Error inserting \"%s\" variable, errno=%d\n",
}
#ifndef CONFIG_SPL_BUILD
-int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if (argc < 2)
return CMD_RET_USAGE;
}
#endif
+#if defined(CONFIG_CMD_ENV_CALLBACK)
+static int print_static_binding(const char *var_name, const char *callback_name)
+{
+ printf("\t%-20s %-20s\n", var_name, callback_name);
+
+ return 0;
+}
+
+static int print_active_callback(ENTRY *entry)
+{
+ struct env_clbk_tbl *clbkp;
+ int i;
+ int num_callbacks;
+
+ if (entry->callback == NULL)
+ return 0;
+
+ /* look up the callback in the linker-list */
+ num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk);
+ for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk);
+ i < num_callbacks;
+ i++, clbkp++) {
+#if defined(CONFIG_NEEDS_MANUAL_RELOC)
+ if (entry->callback == clbkp->callback + gd->reloc_off)
+#else
+ if (entry->callback == clbkp->callback)
+#endif
+ break;
+ }
+
+ if (i == num_callbacks)
+ /* this should probably never happen, but just in case... */
+ printf("\t%-20s %p\n", entry->key, entry->callback);
+ else
+ printf("\t%-20s %-20s\n", entry->key, clbkp->name);
+
+ return 0;
+}
+
+/*
+ * Print the callbacks available and what they are bound to
+ */
+int do_env_callback(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ struct env_clbk_tbl *clbkp;
+ int i;
+ int num_callbacks;
+
+ /* Print the available callbacks */
+ puts("Available callbacks:\n");
+ puts("\tCallback Name\n");
+ puts("\t-------------\n");
+ num_callbacks = ll_entry_count(struct env_clbk_tbl, env_clbk);
+ for (i = 0, clbkp = ll_entry_start(struct env_clbk_tbl, env_clbk);
+ i < num_callbacks;
+ i++, clbkp++)
+ printf("\t%s\n", clbkp->name);
+ puts("\n");
+
+ /* Print the static bindings that may exist */
+ puts("Static callback bindings:\n");
+ printf("\t%-20s %-20s\n", "Variable Name", "Callback Name");
+ printf("\t%-20s %-20s\n", "-------------", "-------------");
+ env_attr_walk(ENV_CALLBACK_LIST_STATIC, print_static_binding);
+ puts("\n");
+
+ /* walk through each variable and print the callback if it has one */
+ puts("Active callback bindings:\n");
+ printf("\t%-20s %-20s\n", "Variable Name", "Callback Name");
+ printf("\t%-20s %-20s\n", "-------------", "-------------");
+ hwalk_r(&env_htab, print_active_callback);
+ return 0;
+}
+#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[])
+static int do_env_edit(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
{
char buffer[CONFIG_SYS_CBSIZE];
char *init_val;
e.key = name;
e.data = NULL;
- hsearch_r(e, FIND, &ep, &env_htab);
+ hsearch_r(e, FIND, &ep, &env_htab, 0);
return ep ? ep->data : NULL;
}
#ifndef CONFIG_SPL_BUILD
#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[])
+static int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
{
printf("Saving Environment to %s...\n", env_name_spec);
*/
int envmatch(uchar *s1, int i2)
{
+ if (s1 == NULL)
+ return -1;
+
while (*s1 == env_get_char(i2++))
if (*s1++ == '=')
return i2;
argv++;
if (sep) { /* export as text file */
- len = hexport_r(&env_htab, sep, &addr, size, argc, argv);
+ len = hexport_r(&env_htab, sep, 0, &addr, size, argc, argv);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;
else /* export as raw binary data */
res = addr;
- len = hexport_r(&env_htab, '\0', &res, ENV_SIZE, argc, argv);
+ len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, argc, argv);
if (len < 0) {
error("Cannot export environment: errno = %d\n", errno);
return 1;
}
if (himport_r(&env_htab, addr, size, sep, del ? 0 : H_NOCLEAR,
- 0, NULL, 0 /* do_apply */) == 0) {
+ 0, NULL) == 0) {
error("Environment import failed: errno = %d\n", errno);
return 1;
}
#if defined(CONFIG_CMD_EDITENV)
U_BOOT_CMD_MKENT(edit, 2, 0, do_env_edit, "", ""),
#endif
+#if defined(CONFIG_CMD_ENV_CALLBACK)
+ U_BOOT_CMD_MKENT(callbacks, 1, 0, do_env_callback, "", ""),
+#endif
#if defined(CONFIG_CMD_EXPORTENV)
U_BOOT_CMD_MKENT(export, 4, 0, do_env_export, "", ""),
#endif
return CMD_RET_USAGE;
}
-U_BOOT_CMD(
- env, CONFIG_SYS_MAXARGS, 1, do_env,
- "environment handling commands",
+#ifdef CONFIG_SYS_LONGHELP
+static char env_help_text[] =
#if defined(CONFIG_CMD_ASKENV)
"ask name [message] [size] - ask for environment variable\nenv "
+#endif
+#if defined(CONFIG_CMD_ENV_CALLBACK)
+ "callbacks - print callbacks and their associated variables\nenv "
#endif
"default [-f] -a - [forcibly] reset default environment\n"
"env default [-f] var [...] - [forcibly] reset variable(s) to their default values\n"
#if defined(CONFIG_CMD_IMPORTENV)
"env import [-d] [-t | -b | -c] addr [size] - import environment\n"
#endif
- "env print [name ...] - print environment\n"
+ "env print [-a | name ...] - print environment\n"
#if defined(CONFIG_CMD_RUN)
"env run var [...] - run commands in an environment variable\n"
#endif
#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
"env save - save environment\n"
#endif
- "env set [-f] name [arg ...]\n"
+ "env set [-f] name [arg ...]\n";
+#endif
+
+U_BOOT_CMD(
+ env, CONFIG_SYS_MAXARGS, 1, do_env,
+ "environment handling commands", env_help_text
);
/*
U_BOOT_CMD_COMPLETE(
printenv, CONFIG_SYS_MAXARGS, 1, do_env_print,
"print environment variables",
- "\n - print values of all environment variables\n"
+ "[-a]\n - print [all] values of all environment variables\n"
"printenv name ...\n"
" - print value of environment variable 'name'",
var_complete
projects / karo-tx-uboot.git / blobdiff