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authorLeo C2014-08-21 11:36:14 +0200
committerLeo C2014-08-21 11:36:14 +0200
commit21a24f90c5aaaaf13f91716208b32cde163c5918 (patch)
treeefc6f9ebab5f84d3af20493821444f220b957962 /include/command.h
parentdea9a31523216caa153c589426b175d52aa43634 (diff)
downloadz180-stamp-21a24f90c5aaaaf13f91716208b32cde163c5918.zip
Create include directory
Diffstat (limited to 'include/command.h')
-rw-r--r--include/command.h158
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diff --git a/include/command.h b/include/command.h
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+
+/*
+ * Definitions for Command Processor
+ */
+#ifndef __COMMAND_H
+#define __COMMAND_H
+
+#include "common.h"
+#include "config.h"
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+/* 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
+#endif
+
+/*
+ * Error codes that commands return to cmd_process(). We use the standard 0
+ * and 1 for success and failure, but add one more case - failure with a
+ * request to call cmd_usage(). But the cmd_process() function handles
+ * CMD_RET_USAGE itself and after calling cmd_usage() it will return 1.
+ * This is just a convenience for commands to avoid them having to call
+ * cmd_usage() all over the place.
+ */
+typedef enum {
+ CMD_RET_SUCCESS, /* 0 = Success */
+ CMD_RET_FAILURE, /* 1 = Failure */
+ CMD_RET_USAGE = -1, /* Failure, please report 'usage' error */
+} command_ret_t;
+
+/*
+ * Monitor Command Table
+ */
+
+struct cmd_tbl_s {
+ const FLASH char *name; /* Command Name */
+ int maxargs; /* maximum number of arguments */
+ int repeatable; /* autorepeat allowed? */
+ /* Implementation function */
+ command_ret_t (*cmd)(const FLASH struct cmd_tbl_s *, int, int, char * const []);
+ const FLASH char *usage; /* Usage message (short) */
+#ifdef CONFIG_SYS_LONGHELP
+ const FLASH 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[]);
+#endif
+};
+
+typedef const FLASH struct cmd_tbl_s cmd_tbl_t;
+
+extern command_ret_t do_run(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+
+/**
+ * Process a command with arguments. We look up the command and execute it
+ * if valid. Otherwise we print a usage message.
+ *
+ * @param flag Some flags normally 0 (see CMD_FLAG_.. above)
+ * @param argc Number of arguments (arg 0 must be the command text)
+ * @param argv Arguments
+ * @param repeatable This function sets this to 0 if the command is not
+ * repeatable. If the command is repeatable, the value
+ * is left unchanged.
+ * @return 0 if the command succeeded, 1 if it failed
+ */
+command_ret_t
+cmd_process(int flag, int argc, char * const argv[], uint_fast8_t *repeatable);
+
+
+/* command.c */
+command_ret_t _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 cmd_tbl_item_count(void);
+command_ret_t cmd_usage(cmd_tbl_t *cmdtp);
+
+#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 FLASH char *const prompt, char *buf, int *np, int *colp);
+#endif
+
+/**
+ * cmd_process_error() - report and process a possible error
+ *
+ * @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
+ */
+int cmd_process_error(cmd_tbl_t *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[]);
+ */
+
+
+#ifdef CONFIG_CMD_BOOTD
+extern command_ret_t do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+#endif
+#ifdef CONFIG_CMD_BOOTM
+extern command_ret_t 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);
+#else
+static inline int bootm_maybe_autostart(cmd_tbl_t *cmdtp, const char *cmd)
+{
+ (void) cmdtp; (void) cmd;
+
+ return 0;
+}
+#endif
+
+extern int common_diskboot(cmd_tbl_t *cmdtp, const char *intf, int argc,
+ char *const argv[]);
+
+extern command_ret_t do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
+
+/*
+ * Command Flags:
+ */
+#define CMD_FLAG_REPEAT 0x0001 /* repeat last command */
+#define CMD_FLAG_BOOTD 0x0002 /* command is from bootd */
+
+#ifdef CONFIG_AUTO_COMPLETE
+# define _CMD_COMPLETE(x) x,
+#else
+# define _CMD_COMPLETE(x)
+#endif
+#ifdef CONFIG_SYS_LONGHELP
+# define _CMD_HELP(x) x,
+#else
+# define _CMD_HELP(x)
+#endif
+
+
+#define CMD_TBL_ITEM_COMPLETE(_name, _maxargs, _rep, _cmd, \
+ _usage, _help, _comp) \
+ { FSTR(#_name), _maxargs, _rep, _cmd, FSTR(_usage), \
+ _CMD_HELP(FSTR(_help)) _CMD_COMPLETE(_comp) }
+
+#define CMD_TBL_ITEM(_name, _maxargs, _rep, _cmd, _usage, _help) \
+ CMD_TBL_ITEM_COMPLETE(_name, _maxargs, _rep, _cmd, \
+ _usage, _help, NULL)
+
+typedef command_ret_t (*do_cmd_t)(cmd_tbl_t *, int, int, char * const []);
+
+extern cmd_tbl_t cmd_tbl[];
+
+
+#endif /* __COMMAND_H */