command: Remove the cmd_tbl_t typedef
[oweals/u-boot.git] / include / command.h
index 2ae9b6c2e6e582eef50e6d115ed66b65ea9fe053..b9b5ec1afa045eaf20826b16e893fb1f611edc28 100644 (file)
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2000-2009
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 /*
@@ -11,6 +10,7 @@
 #ifndef __COMMAND_H
 #define __COMMAND_H
 
+#include <env.h>
 #include <linker_lists.h>
 
 #ifndef NULL
@@ -19,7 +19,7 @@
 
 /* Default to a width of 8 characters for help message command width */
 #ifndef CONFIG_SYS_HELP_CMD_WIDTH
-#define CONFIG_SYS_HELP_CMD_WIDTH      8
+#define CONFIG_SYS_HELP_CMD_WIDTH      10
 #endif
 
 #ifndef        __ASSEMBLY__
  * Monitor Command Table
  */
 
-struct cmd_tbl_s {
+struct cmd_tbl {
        char            *name;          /* Command Name                 */
        int             maxargs;        /* maximum number of arguments  */
-       int             repeatable;     /* autorepeat allowed?          */
+                                       /*
+                                        * Same as ->cmd() except the command
+                                        * tells us if it can be repeated.
+                                        * Replaces the old ->repeatable field
+                                        * which was not able to make
+                                        * repeatable property different for
+                                        * the main command and sub-commands.
+                                        */
+       int             (*cmd_rep)(struct cmd_tbl *cmd, int flags, int argc,
+                                  char *const argv[], int *repeatable);
                                        /* Implementation function      */
-       int             (*cmd)(struct cmd_tbl_s *, int, int, char * const []);
+       int             (*cmd)(struct cmd_tbl *cmd, int flags, int argc,
+                              char *const argv[]);
        char            *usage;         /* Usage message        (short) */
 #ifdef CONFIG_SYS_LONGHELP
        char            *help;          /* Help  message        (long)  */
 #endif
 #ifdef CONFIG_AUTO_COMPLETE
        /* do auto completion on the arguments */
-       int             (*complete)(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]);
+       int             (*complete)(int argc, char *const argv[],
+                                   char last_char, int maxv, char *cmdv[]);
 #endif
 };
 
-typedef struct cmd_tbl_s       cmd_tbl_t;
-
-
 #if defined(CONFIG_CMD_RUN)
-extern int do_run(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+extern int do_run(struct cmd_tbl *cmdtp, int flag, int argc,
+                 char *const argv[]);
 #endif
 
 /* common/command.c */
-int _do_help (cmd_tbl_t *cmd_start, int cmd_items, cmd_tbl_t * cmdtp, int
-             flag, int argc, char * const argv[]);
-cmd_tbl_t *find_cmd(const char *cmd);
-cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len);
+int _do_help(struct cmd_tbl *cmd_start, int cmd_items, struct cmd_tbl *cmdtp,
+            int flag, int argc, char *const argv[]);
+struct cmd_tbl *find_cmd(const char *cmd);
+struct cmd_tbl *find_cmd_tbl(const char *cmd, struct cmd_tbl *table,
+                            int table_len);
+int complete_subcmdv(struct cmd_tbl *cmdtp, int count, int argc,
+                    char *const argv[], char last_char, int maxv,
+                    char *cmdv[]);
+
+extern int cmd_usage(const struct cmd_tbl *cmdtp);
 
-extern int cmd_usage(const cmd_tbl_t *cmdtp);
+/* Dummy ->cmd and ->cmd_rep wrappers. */
+int cmd_always_repeatable(struct cmd_tbl *cmdtp, int flag, int argc,
+                         char *const argv[], int *repeatable);
+int cmd_never_repeatable(struct cmd_tbl *cmdtp, int flag, int argc,
+                        char *const argv[], int *repeatable);
+int cmd_discard_repeatable(struct cmd_tbl *cmdtp, int flag, int argc,
+                          char *const argv[]);
+
+static inline bool cmd_is_repeatable(struct cmd_tbl *cmdtp)
+{
+       return cmdtp->cmd_rep == cmd_always_repeatable;
+}
 
 #ifdef CONFIG_AUTO_COMPLETE
-extern int var_complete(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]);
-extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp);
+extern int var_complete(int argc, char *const argv[], char last_char, int maxv,
+                       char *cmdv[]);
+extern int cmd_auto_complete(const char *const prompt, char *buf, int *np,
+                            int *colp);
 #endif
 
 /**
@@ -68,48 +96,68 @@ extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *
  *
  * @cmdtp: Command which caused the error
  * @err: Error code (0 if none, -ve for error, like -EIO)
- * @return 0 if there is not error, 1 (CMD_RET_FAILURE) if an error is found
+ * @return 0 (CMD_RET_SUCCESS) if there is not error,
+ *        1 (CMD_RET_FAILURE) if an error is found
+ *        -1 (CMD_RET_USAGE) if 'usage' error is found
  */
-int cmd_process_error(cmd_tbl_t *cmdtp, int err);
+int cmd_process_error(struct cmd_tbl *cmdtp, int err);
 
 /*
  * Monitor Command
  *
  * All commands use a common argument format:
  *
- * void function (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+ * void function(struct cmd_tbl *cmdtp, int flag, int argc,
+ *              char *const argv[]);
  */
 
-#if defined(CONFIG_CMD_MEMORY)         \
-       || defined(CONFIG_CMD_I2C)      \
-       || defined(CONFIG_CMD_ITEST)    \
-       || defined(CONFIG_CMD_PCI)      \
-       || defined(CONFIG_CMD_PORTIO)
+#if defined(CONFIG_CMD_MEMORY) || \
+       defined(CONFIG_CMD_I2C) || \
+       defined(CONFIG_CMD_ITEST) || \
+       defined(CONFIG_CMD_PCI) || \
+       defined(CONFIG_CMD_SETEXPR)
 #define CMD_DATA_SIZE
 extern int cmd_get_data_size(char* arg, int default_size);
 #endif
 
 #ifdef CONFIG_CMD_BOOTD
-extern int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+extern int do_bootd(struct cmd_tbl *cmdtp, int flag, int argc,
+                   char *const argv[]);
 #endif
 #ifdef CONFIG_CMD_BOOTM
-extern int do_bootm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
-extern int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd);
+extern int do_bootm(struct cmd_tbl *cmdtp, int flag, int argc,
+                   char *const argv[]);
+extern int bootm_maybe_autostart(struct cmd_tbl *cmdtp, const char *cmd);
 #else
-static inline int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
+static inline int bootm_maybe_autostart(struct cmd_tbl *cmdtp, const char *cmd)
 {
        return 0;
 }
 #endif
 
-extern int do_bootz(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+extern int do_bootz(struct cmd_tbl *cmdtp, int flag, int argc,
+                   char *const argv[]);
 
-extern int do_booti(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+extern int do_booti(struct cmd_tbl *cmdtp, int flag, int argc,
+                   char *const argv[]);
 
-extern int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
+extern int common_diskboot(struct cmd_tbl *cmdtp, const char *intf, int argc,
                           char *const argv[]);
 
-extern int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+extern int do_reset(struct cmd_tbl *cmdtp, int flag, int argc,
+                   char *const argv[]);
+extern int do_poweroff(struct cmd_tbl *cmdtp, int flag, int argc,
+                      char *const argv[]);
+
+extern unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc,
+                               char *const argv[]);
+
+#if defined(CONFIG_CMD_NVEDIT_EFI)
+extern int do_env_print_efi(struct cmd_tbl *cmdtp, int flag, int argc,
+                           char *const argv[]);
+extern int do_env_set_efi(struct cmd_tbl *cmdtp, int flag, int argc,
+                         char *const argv[]);
+#endif
 
 /*
  * Error codes that commands return to cmd_process(). We use the standard 0
@@ -139,10 +187,44 @@ enum command_ret_t {
  *                     number of ticks the command took to complete.
  * @return 0 if the command succeeded, 1 if it failed
  */
-int cmd_process(int flag, int argc, char * const argv[],
-                              int *repeatable, unsigned long *ticks);
+int cmd_process(int flag, int argc, char *const argv[], int *repeatable,
+               unsigned long *ticks);
+
+void fixup_cmdtable(struct cmd_tbl *cmdtp, int size);
 
-void fixup_cmdtable(cmd_tbl_t *cmdtp, int size);
+/**
+ * board_run_command() - Fallback function to execute a command
+ *
+ * When no command line features are enabled in U-Boot, this function is
+ * called to execute a command. Typically the function can look at the
+ * command and perform a few very specific tasks, such as booting the
+ * system in a particular way.
+ *
+ * This function is only used when CONFIG_CMDLINE is not enabled.
+ *
+ * In normal situations this function should not return, since U-Boot will
+ * simply hang.
+ *
+ * @cmdline:   Command line string to execute
+ * @return 0 if OK, 1 for error
+ */
+int board_run_command(const char *cmdline);
+
+int run_command(const char *cmd, int flag);
+int run_command_repeatable(const char *cmd, int flag);
+
+/**
+ * Run a list of commands separated by ; or even \0
+ *
+ * Note that if 'len' is not -1, then the command does not need to be nul
+ * terminated, Memory will be allocated for the command in that case.
+ *
+ * @param cmd  List of commands to run, each separated bu semicolon
+ * @param len  Length of commands excluding terminator if known (-1 if not)
+ * @param flag Execution flags (CMD_FLAG_...)
+ * @return 0 on success, or != 0 on error.
+ */
+int run_command_list(const char *cmd, int len, int flag);
 #endif /* __ASSEMBLY__ */
 
 /*
@@ -163,21 +245,145 @@ void fixup_cmdtable(cmd_tbl_t *cmdtp, int size);
 # define _CMD_HELP(x)
 #endif
 
+#ifdef CONFIG_NEEDS_MANUAL_RELOC
+#define U_BOOT_SUBCMDS_RELOC(_cmdname)                                 \
+       static void _cmdname##_subcmds_reloc(void)                      \
+       {                                                               \
+               static int relocated;                                   \
+                                                                       \
+               if (relocated)                                          \
+                       return;                                         \
+                                                                       \
+               fixup_cmdtable(_cmdname##_subcmds,                      \
+                              ARRAY_SIZE(_cmdname##_subcmds));         \
+               relocated = 1;                                          \
+       }
+#else
+#define U_BOOT_SUBCMDS_RELOC(_cmdname)                                 \
+       static void _cmdname##_subcmds_reloc(void) { }
+#endif
+
+#define U_BOOT_SUBCMDS_DO_CMD(_cmdname)                                        \
+       static int do_##_cmdname(struct cmd_tbl *cmdtp, int flag,       \
+                                int argc, char *const argv[],          \
+                                int *repeatable)                       \
+       {                                                               \
+               struct cmd_tbl *subcmd;                                 \
+                                                                       \
+               _cmdname##_subcmds_reloc();                             \
+                                                                       \
+               /* We need at least the cmd and subcmd names. */        \
+               if (argc < 2 || argc > CONFIG_SYS_MAXARGS)              \
+                       return CMD_RET_USAGE;                           \
+                                                                       \
+               subcmd = find_cmd_tbl(argv[1], _cmdname##_subcmds,      \
+                                     ARRAY_SIZE(_cmdname##_subcmds));  \
+               if (!subcmd || argc - 1 > subcmd->maxargs)              \
+                       return CMD_RET_USAGE;                           \
+                                                                       \
+               if (flag == CMD_FLAG_REPEAT &&                          \
+                   !cmd_is_repeatable(subcmd))                         \
+                       return CMD_RET_SUCCESS;                         \
+                                                                       \
+               return subcmd->cmd_rep(subcmd, flag, argc - 1,          \
+                                      argv + 1, repeatable);           \
+       }
+
+#ifdef CONFIG_AUTO_COMPLETE
+#define U_BOOT_SUBCMDS_COMPLETE(_cmdname)                              \
+       static int complete_##_cmdname(int argc, char *const argv[],    \
+                                      char last_char, int maxv,        \
+                                      char *cmdv[])                    \
+       {                                                               \
+               return complete_subcmdv(_cmdname##_subcmds,             \
+                                       ARRAY_SIZE(_cmdname##_subcmds), \
+                                       argc - 1, argv + 1, last_char,  \
+                                       maxv, cmdv);                    \
+       }
+#else
+#define U_BOOT_SUBCMDS_COMPLETE(_cmdname)
+#endif
+
+#define U_BOOT_SUBCMDS(_cmdname, ...)                                  \
+       static struct cmd_tbl _cmdname##_subcmds[] = { __VA_ARGS__ };   \
+       U_BOOT_SUBCMDS_RELOC(_cmdname)                                  \
+       U_BOOT_SUBCMDS_DO_CMD(_cmdname)                                 \
+       U_BOOT_SUBCMDS_COMPLETE(_cmdname)
+
+#ifdef CONFIG_CMDLINE
+#define U_BOOT_CMDREP_MKENT_COMPLETE(_name, _maxargs, _cmd_rep,                \
+                                    _usage, _help, _comp)              \
+               { #_name, _maxargs, _cmd_rep, cmd_discard_repeatable,   \
+                 _usage, _CMD_HELP(_help) _CMD_COMPLETE(_comp) }
+
 #define U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd,         \
                                _usage, _help, _comp)                   \
-               { #_name, _maxargs, _rep, _cmd, _usage,                 \
-                       _CMD_HELP(_help) _CMD_COMPLETE(_comp) }
-
-#define U_BOOT_CMD_MKENT(_name, _maxargs, _rep, _cmd, _usage, _help)   \
-       U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd,          \
-                                       _usage, _help, NULL)
+               { #_name, _maxargs,                                     \
+                _rep ? cmd_always_repeatable : cmd_never_repeatable,   \
+                _cmd, _usage, _CMD_HELP(_help) _CMD_COMPLETE(_comp) }
 
 #define U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, _comp) \
-       ll_entry_declare(cmd_tbl_t, _name, cmd) =                       \
+       ll_entry_declare(struct cmd_tbl, _name, cmd) =                  \
                U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd,  \
                                                _usage, _help, _comp);
 
+#define U_BOOT_CMDREP_COMPLETE(_name, _maxargs, _cmd_rep, _usage,      \
+                              _help, _comp)                            \
+       ll_entry_declare(struct cmd_tbl, _name, cmd) =                  \
+               U_BOOT_CMDREP_MKENT_COMPLETE(_name, _maxargs, _cmd_rep, \
+                                            _usage, _help, _comp)
+
+#else
+#define U_BOOT_SUBCMD_START(name)      static struct cmd_tbl name[] = {};
+#define U_BOOT_SUBCMD_END
+
+#define _CMD_REMOVE(_name, _cmd)                                       \
+       int __remove_ ## _name(void)                                    \
+       {                                                               \
+               if (0)                                                  \
+                       _cmd(NULL, 0, 0, NULL);                         \
+               return 0;                                               \
+       }
+
+#define U_BOOT_CMDREP_MKENT_COMPLETE(_name, _maxargs, _cmd_rep,                \
+                                    _usage, _help, _comp)              \
+               { #_name, _maxargs, 0 ? _cmd_rep : NULL, NULL, _usage,  \
+                       _CMD_HELP(_help) _CMD_COMPLETE(_comp) }
+
+#define U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, \
+                                 _help, _comp)                         \
+               { #_name, _maxargs, NULL, 0 ? _cmd : NULL, _usage,      \
+                       _CMD_HELP(_help) _CMD_COMPLETE(_comp) }
+
+#define U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help,        \
+                           _comp)                              \
+       _CMD_REMOVE(sub_ ## _name, _cmd)
+
+#define U_BOOT_CMDREP_COMPLETE(_name, _maxargs, _cmd_rep, _usage,      \
+                              _help, _comp)                            \
+       _CMD_REMOVE(sub_ ## _name, _cmd_rep)
+
+#endif /* CONFIG_CMDLINE */
+
 #define U_BOOT_CMD(_name, _maxargs, _rep, _cmd, _usage, _help)         \
        U_BOOT_CMD_COMPLETE(_name, _maxargs, _rep, _cmd, _usage, _help, NULL)
 
+#define U_BOOT_CMD_MKENT(_name, _maxargs, _rep, _cmd, _usage, _help)   \
+       U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _cmd,          \
+                                       _usage, _help, NULL)
+
+#define U_BOOT_SUBCMD_MKENT_COMPLETE(_name, _maxargs, _rep, _do_cmd,   \
+                                    _comp)                             \
+       U_BOOT_CMD_MKENT_COMPLETE(_name, _maxargs, _rep, _do_cmd,       \
+                                 "", "", _comp)
+
+#define U_BOOT_SUBCMD_MKENT(_name, _maxargs, _rep, _do_cmd)            \
+       U_BOOT_SUBCMD_MKENT_COMPLETE(_name, _maxargs, _rep, _do_cmd,    \
+                                    NULL)
+
+#define U_BOOT_CMD_WITH_SUBCMDS(_name, _usage, _help, ...)             \
+       U_BOOT_SUBCMDS(_name, __VA_ARGS__)                              \
+       U_BOOT_CMDREP_COMPLETE(_name, CONFIG_SYS_MAXARGS, do_##_name,   \
+                              _usage, _help, complete_##_name)
+
 #endif /* __COMMAND_H */