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-rw-r--r--avr/env.c881
1 files changed, 881 insertions, 0 deletions
diff --git a/avr/env.c b/avr/env.c
new file mode 100644
index 0000000..f167859
--- /dev/null
+++ b/avr/env.c
@@ -0,0 +1,881 @@
+/*
+ * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include "env.h"
+#include <avr/eeprom.h>
+
+#include "config.h"
+#include "debug.h"
+#include "crc.h"
+#include "getopt-min.h"
+
+#define DEBUG_ENV 0 /* set to 1 to debug */
+
+#define debug_env(fmt, args...) \
+ debug_cond(DEBUG_ENV, fmt, ##args)
+
+
+/*
+ * Default Environment
+ */
+
+#define DELIM "\0"
+
+const FLASH char default_env[] = {
+ ENV_BAUDRATE "=" stringify(CONFIG_BAUDRATE) DELIM
+ ENV_BOOTDELAY "=" stringify(CONFIG_BOOTDELAY) DELIM
+ ENV_BOOTCMD "=" "pin ${pins};loadcpm3;go ${startaddress}" DELIM
+ ENV_CPM3_SYSFILE "=" CONFIG_CPM3_SYSFILE DELIM
+ ENV_PINALIAS "=" "0:PG5,1:PG4,2:PB4,3:PB5,4:PB6,5:PB7,"
+ "6:PG3,7:PG2,8:PG1,9:PG0,10:PE7" DELIM
+ "pins" "=" "2,8 low 9 high 3 2" DELIM
+ DELIM
+};
+
+
+#define ENV_SIZE (CONFIG_ENV_SIZE - sizeof(uint16_t) - sizeof(uint8_t))
+
+#define ENVLIST_DELETE (1<<0)
+
+
+/* EEPROM storage */
+typedef struct environment_s {
+ uint16_t crc; /* CRC16 over data bytes */
+ uint8_t flags; /* active/obsolete flags */
+#define ACTIVE_FLAG 1
+#define OBSOLETE_FLAG 0
+ char data[ENV_SIZE]; /* Environment data */
+} env_t;
+
+
+static uint8_t env_valid;
+static char env_list[ENV_SIZE];
+
+static
+char env_get_char(uint_fast16_t index)
+{
+ unsigned int off = CONFIG_ENV_OFFSET;
+ char ret;
+
+ switch (env_valid) {
+ case 2:
+ off += CONFIG_ENV_SIZE;
+ /* FALL TROUGH */
+ case 1:
+ ret = (char) eeprom_read_byte((const uint8_t *)off + index +
+ offsetof(env_t, data));
+ break;
+
+ default:
+ ret = default_env[index];
+ }
+
+ return ret;
+}
+
+static void envlist_clear(void)
+{
+ memset(env_list, 0, sizeof env_list);
+}
+
+static
+int env_item_delete(char *ep)
+{
+ char *next = ep + strlen(ep) + 1;
+ char *end = next;
+ while (*end++ != 0)
+ while (*end++ != 0);
+
+ memmove(ep, next, end - next);
+
+ return 0;
+}
+
+static int envcmp(const char *s1, const char *s2)
+{
+ const unsigned char *u1 = (const unsigned char *)s1;
+ const unsigned char *u2 = (const unsigned char *)s2;
+ unsigned char c1, c2;
+
+ do {
+ c1 = *u1++; c2 = *u2++;
+ if (c1 == '=') c1 = '\0';
+ if (c2 == '=') c2 = '\0';
+ } while (c1 != 0 && c1 - c2 == 0);
+
+ return c1 - c2;
+}
+
+static char *envlist_search(const MEMX char *name)
+{
+ char key[CONFIG_SYS_ENV_NAMELEN + 1];
+ const MEMX char *np = name;
+ int keylen = 0;
+ char c;
+
+ while (keylen <= CONFIG_SYS_ENV_NAMELEN && (c = *np++) != '\0')
+ key[keylen++] = c;
+ key[keylen] = '\0';
+
+ for (char *lp = env_list; *lp != 0; ++lp) {
+
+ if (envcmp(lp, key) == 0)
+ return lp;
+
+ while (*lp != 0)
+ ++lp;
+ }
+
+ return NULL;
+}
+
+static char *env_item_insert_name(char *pos, const char *name, int len)
+{
+ char *dstp = pos + len + 1;
+ char *end = pos;
+ while (*end++ != 0)
+ while (*end++ != 0);
+
+ if (end + len >= env_list + ENV_SIZE)
+ return NULL;
+
+ memmove(dstp, pos, end - pos);
+ strcpy(pos, name);
+ memset(pos + strlen(name), '=', dstp - pos - strlen(name));
+ *(dstp - 1) = '\0';
+
+ return pos;
+}
+
+
+static char *envlist_alloc(const char *name, int len)
+{
+ char *lp;
+ int rc;
+
+
+ for (lp = env_list; *lp != 0; ++lp) {
+
+ rc = envcmp(lp, name);
+ if (rc >= 0)
+ break;
+
+ /* rc < 0 : check next place */
+ while (*lp != 0)
+ ++lp;
+ }
+
+ /* rc == 0 : entry found, replace */
+ if (rc == 0)
+ env_item_delete(lp);
+
+ /* rc > 0 : entry not in list, insert */
+ /* *lp == 0 : entry not in list, insert */
+
+ lp = env_item_insert_name(lp, name, len);
+
+ return lp;
+}
+
+#if 0
+static char *env_item_insert(char *pos, const char *envstr)
+{
+ char *dstp = pos + strlen(envstr) + 1;
+ char *end = pos;
+ while (*end++ != 0)
+ while (*end++ != 0);
+
+ if (end > env_list + ENV_SIZE)
+ return NULL;
+
+ memmove(dstp, pos, end - pos);
+ strcpy(pos, envstr);
+
+ return pos;
+}
+
+static char *envlist_enter(const char *ep)
+{
+ char *lp;
+ int rc;
+
+ for (lp = env_list; *lp != 0; ++lp) {
+
+ rc = envcmp(lp, ep);
+ if (rc >= 0)
+ break;
+
+ /* rc < 0 : check next place */
+ while (*lp != 0)
+ ++lp;
+ }
+
+ /* rc == 0 : entry found, replace */
+ if (rc == 0)
+ env_item_delete(lp);
+
+ /* rc > 0 : entry not in list, insert */
+ /* *lp == 0 : entry not in list, insert */
+
+ lp = env_item_insert(lp, ep);
+
+ return lp;
+}
+#endif
+
+static
+int envlist_delete(const MEMX char *name)
+{
+ char *ep = envlist_search(name);
+
+ if (ep != NULL)
+ return env_item_delete(ep);
+
+ return 1;
+}
+
+static
+int envlist_import(uint8_t flags)
+{
+ if ((flags & ENVLIST_DELETE) != 0)
+ envlist_clear();
+
+ for (uint_fast16_t index = 0; env_get_char(index) != '\0'; ) {
+ char name[CONFIG_SYS_ENV_NAMELEN+1];
+ uint_fast8_t nlen = 0;
+ size_t len;
+ char ch;
+ for (len = 0; (ch = env_get_char(index + len)) != '\0'; ++len) {
+ if ((index + len) >= ENV_SIZE)
+ return -1;
+ if (nlen == 0) {
+ if (ch == '=') {
+ nlen = len;
+ name[nlen] = '\0';
+ } else {
+ if (len > CONFIG_SYS_ENV_NAMELEN)
+ return -1;
+ name[len] = ch;
+ }
+ }
+ }
+
+ char *ep = envlist_alloc(name, len);
+ if (ep == NULL) {
+ printf_P(PSTR("## Error inserting \"%s\" variable.\n"), name);
+ return 1;
+ }
+
+ index += nlen;
+ char *p = ep + nlen;
+ while ((*p++ = env_get_char(index++)) != '\0')
+ ;
+ }
+ return 0;
+}
+
+
+static
+uint16_t env_crc(uint16_t data_offset)
+{
+ uint16_t crc;
+ uint16_t i;
+ char c, c0;
+
+ crc = 0xffff;
+ c = 0xff;
+ for (i = 0; !(c == 0 && c0 == 0) && i < ENV_SIZE; i++)
+ {
+ c0 = c;
+ c = eeprom_read_byte((const uint8_t *) data_offset + i);
+ crc = crc16(crc, c);
+ }
+ return crc ;
+}
+
+
+/**
+ * return valid env
+ */
+static
+int env_check_valid(void)
+{
+ const uint16_t offset[2] = {CONFIG_ENV_OFFSET,
+ CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE};
+ uint_fast8_t flags[2], crc_ok[2];
+ int rc;
+
+ /* read FLAGS */
+ flags[0] = eeprom_read_byte ((uint8_t *) offset[0] +
+ offsetof(env_t, flags));
+ flags[1] = eeprom_read_byte ((uint8_t *) offset[1] +
+ offsetof(env_t, flags));
+
+ /* check CRC */
+ crc_ok[0] = (
+ eeprom_read_word((uint16_t *) offset[0] +
+ offsetof(env_t, crc))
+ == env_crc(offset[0] + offsetof(env_t, data))
+ );
+ crc_ok[1] = (
+ eeprom_read_word((uint16_t *) offset[1] +
+ offsetof(env_t, crc))
+ == env_crc(offset[1] + offsetof(env_t, data))
+ );
+
+ if (!crc_ok[0] && !crc_ok[1]) {
+ rc = 0;
+
+ } else if (crc_ok[0] && !crc_ok[1]) {
+ rc = 1;
+ } else if (!crc_ok[0] && crc_ok[1]) {
+ rc = 2;
+ } else {
+ /* both ok - check serial */
+#if 1
+ if (flags[1] == ACTIVE_FLAG && flags[0] != ACTIVE_FLAG)
+ rc = 2;
+ else if (flags[1] == OBSOLETE_FLAG && flags[0] == 0xFF)
+ rc = 2;
+ else
+ rc = 1;
+#else
+ if (flags[0] == ACTIVE_FLAG && flags[1] == OBSOLETE_FLAG)
+ rc = 1;
+ else if (flags[0] == OBSOLETE_FLAG && flags[1] == ACTIVE_FLAG)
+ rc = 2;
+ else if (flags[0] == 0xFF && flags[1] == 0)
+ rc = 2;
+ else if (flags[1] == 0xFF && flags[0] == 0)
+ rc = 1;
+ else /* flags are equal - almost impossible */
+ rc = 1;
+#endif
+ }
+
+ return rc;
+}
+
+
+int env_init(void)
+{
+ env_valid = env_check_valid();
+ if (env_valid == 0) {
+ printf_P(PSTR("*** Warning - bad CRC, "
+ "using default environment\n\n"));
+ }
+
+ envlist_import(ENVLIST_DELETE);
+ return 0;
+}
+
+
+char *getenv_str(const MEMX char *name)
+{
+ char *ep = envlist_search(name);
+ if (ep != NULL)
+ return strchr(ep, '=') + 1;
+ else
+ return NULL;
+}
+
+static
+int env_item_save(char *ep, uint16_t offset, int space_left)
+{
+ int len;
+
+ len = strlen(ep);
+ if (len == 0)
+ return 0;
+ len += 1;
+ if (len > space_left)
+ return 0;
+
+ eeprom_update_block(ep, (uint8_t *) offset, len);
+
+ return len;
+}
+
+
+static
+int saveenv(void)
+{
+ unsigned int off = CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE;
+ unsigned int off_red = CONFIG_ENV_OFFSET;
+ unsigned int pos;
+ int len, left;
+ uint16_t crc;
+ int rc = 0;
+
+ if (env_valid == 2) {
+ off = CONFIG_ENV_OFFSET;
+ off_red = CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE;
+ }
+
+ eeprom_update_byte((uint8_t *) off + offsetof(env_t, flags), 0xff);
+
+ pos = off + offsetof(env_t, data);
+ left = ENV_SIZE - 1;
+
+ char *ep = env_list;
+ while (*ep) {
+ len = env_item_save(ep, pos, left);
+ if (len == 0) {
+ return 1;
+ }
+ pos += len;
+ left -= len;
+ while (*ep++);
+ }
+
+ /* terminate list */
+ eeprom_update_byte((uint8_t *) pos, 0);
+ crc = env_crc(off + offsetof(env_t, data));
+ eeprom_update_word((uint16_t *) off + offsetof(env_t, crc), crc);
+ eeprom_update_byte((uint8_t *) off + offsetof(env_t, flags),
+ ACTIVE_FLAG);
+
+ if (rc == 0) {
+ eeprom_update_byte((uint8_t *) off_red + offsetof(env_t, flags),
+ OBSOLETE_FLAG);
+ env_valid = (env_valid == 2) ? 1 : 2;
+ }
+
+ return rc;
+}
+
+
+static
+int env_item_print(char *ep, bool mode)
+{
+ int len = strlen(ep) + 1;
+
+ if (mode) {
+ my_puts_P(PSTR("setenv "));
+ char ch;
+ while ((ch = *ep++) != '=')
+ putchar(ch);
+ printf_P(PSTR(" '%s'\n"), ep);
+ } else {
+ puts(ep);
+ }
+
+ return len;
+}
+
+
+/*
+ * Command interface: print one or all environment variables
+ *
+ * Returns -1 in case of error, or length of printed string
+ */
+static
+int env_print(const char *name, bool mode)
+{
+ int len = -1;
+ char *ep;
+
+ if (name != NULL) { /* print a single name */
+
+ ep = envlist_search(name);
+ if (ep != NULL)
+ len = env_item_print(ep, mode);
+
+ } else { /* print whole list */
+ len = 0;
+ ep = env_list;
+ while (*ep) {
+ len += env_item_print(ep, mode);
+ while (*ep++);
+ }
+ }
+ return len;
+}
+
+
+/**
+ * Set or delete environment variable
+ *
+ * Set a new environment variable,
+ * or replace or delete an existing one.
+ *
+ * @param flag (not used)
+ * @param argc
+ * @param argv[1] Environment variable to set or delete
+ * if no more args
+ * @param argv[2] ... Value to set it to
+ *
+ * @return 0 if ok, 1 on error
+ */
+static
+command_ret_t _do_env_set(uint_fast8_t flag UNUSED, int argc, char * const argv[])
+{
+ char *name = argv[1];
+
+ if (strchr(name, '=')) {
+ printf_P(PSTR("## Error: illegal character '='"
+ "in variable name \"%s\"\n"), name);
+ return CMD_RET_FAILURE;
+ }
+ size_t len = strlen(name);
+ if (len > CONFIG_SYS_ENV_NAMELEN) {
+ printf_P(PSTR("## Error: Variable name \"%s\" too long. "
+ "(max %d characters)\n"), name, CONFIG_SYS_ENV_NAMELEN);
+ return CMD_RET_FAILURE;
+ }
+
+ /* Delete only ? */
+ if (argc < 3) {
+ int rc = envlist_delete(name);
+ return rc ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
+ }
+
+ /* Insert / replace new value */
+
+ for (int_fast8_t i = 2; i < argc; ++i)
+ len += strlen(argv[i]) + 1;
+
+ char *pos = envlist_alloc(name, len);
+ if (pos == NULL) {
+ printf_P(PSTR("## Error inserting \"%s\" variable.\n"), name);
+ return CMD_RET_FAILURE;
+ }
+
+ char *vp = pos + strlen(name) + 1;
+ for (int_fast8_t i = 2; i < argc; ++i) {
+ char *ap = argv[i];
+ while ((*vp++ = *ap++) != '\0');
+ //if (i < argc-1)
+ *(vp-1) = ' ';
+ }
+ *(vp-1) = '\0';
+
+ return CMD_RET_SUCCESS;
+}
+
+/**
+ * Set an environment variable
+ *
+ * @param varname Environment variable to set
+ * @param varvalue Value to set it to
+ * @return 0 if ok, 1 on error
+ */
+
+int setenv(const MEMX char *varname, const char *varvalue)
+{
+ int rc;
+
+#ifdef __MEMX
+ char *tmpname;
+ if (__builtin_avr_flash_segment(varname) != -1) {
+ tmpname = malloc(strlen_P(varname)+1);
+ if (tmpname == NULL) {
+ printf_P(PSTR("setenv: Out of Memory!\n"));
+ return 1;
+ }
+ strcpy_P(tmpname, varname);
+ } else
+ tmpname = (char *) varname;
+
+ const char * const argv[3] = { NULL, tmpname, varvalue };
+#else
+ const char * const argv[3] = { NULL, varname, varvalue };
+#endif
+
+ int argc = 3;
+
+ if (varvalue == NULL || varvalue[0] == '\0')
+ --argc;
+
+ rc = (int) _do_env_set(0, argc, (char * const *)argv);
+
+#ifdef __MEMX
+ if (__builtin_avr_flash_segment(varname) != -1)
+ free(tmpname);
+#endif
+ return rc;
+}
+
+/**
+ * Set an environment variable to an integer value
+ *
+ * @param name Environment variable to set
+ * @param value Value to set it to
+ * @param radix Base
+ * @return 0 if ok, 1 on error
+ */
+static
+int setenv_intval(const MEMX char *name, unsigned long value, int radix)
+{
+ char buf[11];
+
+ ultoa(value, buf, radix);
+
+ return setenv(name, buf);
+}
+
+/**
+ * Set an environment variable to a decimal integer value
+ *
+ * @param name Environment variable to set
+ * @param value Value to set it to
+ * @return 0 if ok, 1 on error
+ */
+int setenv_ulong(const MEMX char *name, unsigned long value)
+{
+ return setenv_intval(name, value, 10);
+}
+
+
+/**
+ * Set an environment variable to a value in hex
+ *
+ * @param name Environment variable to set
+ * @param value Value to set it to
+ * @return 0 if ok, 1 on error
+ */
+int setenv_hex(const MEMX char *name, unsigned long value)
+{
+ return setenv_intval(name, value, 16);
+}
+
+
+/**
+ * Decode the integer value of an environment variable and return it.
+ *
+ * @param name Name of environemnt variable
+ * @param base Number base to use (normally 10, or 16 for hex)
+ * @param default_val Default value to return if the variable is not
+ * found
+ * @return the decoded value, or default_val if not found
+ */
+unsigned long getenv_ulong(const MEMX char *name, int base, unsigned long default_val)
+{
+ unsigned long value;
+ char *vp, *endp;
+
+ vp = getenv_str(name);
+
+ if (vp != NULL ) {
+ value = strtoul(vp, &endp, base);
+ if (endp != vp)
+ return value;
+ }
+
+ return default_val;
+}
+
+
+/*
+ * Read an environment variable as a boolean
+ */
+bool getenv_yesno(const MEMX char *name)
+{
+ char *s = getenv_str(name);
+
+ if (s == NULL)
+ return false;
+
+ return strchr_P(PSTR("1yYtT"), *s) != NULL;
+
+/*
+ return *s == '1' || *s == 'y' || *s == 'Y' || *s == 't' || *s == 'T' ?
+ 1 : 0;
+*/
+}
+
+command_ret_t do_env_print(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED,
+ int argc, char * const argv[])
+{
+ bool mode = 0;
+ command_ret_t rc = CMD_RET_SUCCESS;
+
+ int opt;
+ while ((opt = getopt(argc, argv, PSTR("s"))) != -1) {
+ switch (opt) {
+ case 's':
+ mode = 1;
+ break;
+ default: /* '?' */
+ return CMD_RET_USAGE;
+ }
+ }
+
+ if (optind == argc) {
+ /* print all env vars */
+ int size = env_print(NULL, mode);
+ if (size < 0)
+ return CMD_RET_FAILURE;
+ if (mode == 0)
+ printf_P(PSTR("\nEnvironment size: %d/%d bytes\n"),
+ size, ENV_SIZE - 1);
+ return CMD_RET_SUCCESS;
+ }
+
+ /* print selected env vars */
+ while (optind < argc) {
+ int len = env_print(argv[optind], mode);
+ if (len < 0) {
+ rc = CMD_RET_FAILURE;
+ }
+ optind++;
+ }
+
+ return rc;
+}
+
+
+command_ret_t do_env_set(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag, int argc, char * const argv[])
+{
+ if (argc < 2)
+ return CMD_RET_USAGE;
+
+ return _do_env_set(flag, argc, argv);
+}
+
+
+command_ret_t do_env_default(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED,
+ int argc UNUSED, char * const argv[] UNUSED)
+{
+ uint8_t tmp = env_valid;
+ env_valid = 0;
+
+ /* Reset the whole environment */
+ printf_P(PSTR("## Resetting to default environment\n"));
+ envlist_import(ENVLIST_DELETE);
+
+ env_valid = tmp;
+
+ return CMD_RET_SUCCESS;
+}
+
+
+command_ret_t do_env_save(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED)
+{
+ printf_P(PSTR("Saving Environment ...\n"));
+ return saveenv() ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
+}
+
+
+#if defined(CONFIG_AUTO_COMPLETE)
+int env_complete(char *var, int maxv, char *cmdv[], int bufsz, char *buf)
+{
+ ENTRY *match;
+ int found, idx;
+
+ idx = 0;
+ found = 0;
+ cmdv[0] = NULL;
+
+ while ((idx = hmatch_r(var, idx, &match, &env_htab))) {
+ int vallen = strlen(match->key) + 1;
+
+ if (found >= maxv - 2 || bufsz < vallen)
+ break;
+
+ cmdv[found++] = buf;
+ memcpy(buf, match->key, vallen);
+ buf += vallen;
+ bufsz -= vallen;
+ }
+
+ qsort(cmdv, found, sizeof(cmdv[0]), strcmp_compar);
+
+ if (idx)
+ cmdv[found++] = "...";
+
+ cmdv[found] = NULL;
+ return found;
+}
+#endif
+
+cmd_tbl_t cmd_tbl_env[] = {
+CMD_TBL_ITEM_COMPLETE(
+ printenv, CONFIG_SYS_MAXARGS, 1|CTBL_SUBCMDAUTO, do_env_print,
+ "print environment variables",
+ "[-s] [name ...]\n"
+ " Print value of environment variable(s) 'name'\n"
+ " If no names are given, print values of all environment variables\n"
+ " -s Print in setenv form",
+ var_complete
+),
+CMD_TBL_ITEM_COMPLETE(
+ setenv, CONFIG_SYS_MAXARGS, CTBL_SUBCMDAUTO, 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
+),
+CMD_TBL_ITEM(
+ saveenv, 1, CTBL_SUBCMDAUTO, do_env_save,
+ "save environment variables to persistent storage",
+ ""
+),
+CMD_TBL_ITEM(
+ defaultenv, 1, CTBL_SUBCMDAUTO, do_env_default,
+ "set all environment variables to their default values",
+ ""
+),
+
+CMD_TBL_ITEM_COMPLETE(
+ print, CONFIG_SYS_MAXARGS, 1, do_env_print,
+ "print environment variables",
+ "[-s] [name ...]\n"
+ " Print value of environment variable(s) 'name'\n"
+ " If no names are given, print values of all environment variables\n"
+ " -s Print in setenv form",
+ var_complete
+),
+CMD_TBL_ITEM_COMPLETE(
+ set, 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
+),
+CMD_TBL_ITEM(
+ save, 1, 0, do_env_save,
+ "save environment variables to persistent storage",
+ ""
+),
+CMD_TBL_ITEM(
+ default, 1, 0, do_env_default,
+ "set all environment variables to their default values",
+ ""
+),
+
+CMD_TBL_ITEM(
+ help, CONFIG_SYS_MAXARGS, CTBL_RPT, do_help,
+ "Print sub command description/usage",
+ "\n"
+ " - print brief description of all sub commands\n"
+ "env help command ...\n"
+ " - print detailed usage of sub cmd 'command'"
+),
+
+/* This does not use the CMD_TBL_ITEM macro as ? can't be used in symbol names */
+ {FSTR("?"), CONFIG_SYS_MAXARGS, 1, do_help,
+ NULL,
+#ifdef CONFIG_SYS_LONGHELP
+ FSTR(""),
+#endif /* CONFIG_SYS_LONGHELP */
+ NULL,
+#ifdef CONFIG_AUTO_COMPLETE
+ NULL,
+#endif
+},
+/* Mark end of table */
+CMD_TBL_END(cmd_tbl_env)
+};
+
+command_ret_t do_env(cmd_tbl_t *cmdtp UNUSED, uint_fast8_t flag UNUSED, int argc UNUSED, char * const argv[] UNUSED)
+{
+ return CMD_RET_USAGE;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-19 21:27:03 +0000