summaryrefslogtreecommitdiffstats
path: root/include/cli.h
diff options
context:
space:
mode:
authorStefano Babic <sbabic@denx.de>2014-07-16 08:51:30 +0200
committerStefano Babic <sbabic@denx.de>2014-07-16 08:51:30 +0200
commitdab5e3469d294a4e1ffed8407d296a78e02cc01f (patch)
treec6378034591210b3142ca3add806d52c6ea22b3b /include/cli.h
parent14a1613140519a8d0a88e6054c302a8cb3e067a5 (diff)
parent524123a70761110c5cf3ccc5f52f6d4da071b959 (diff)
downloadu-boot-dab5e3469d294a4e1ffed8407d296a78e02cc01f.tar.gz
u-boot-dab5e3469d294a4e1ffed8407d296a78e02cc01f.tar.xz
u-boot-dab5e3469d294a4e1ffed8407d296a78e02cc01f.zip
Merge branch 'master' of git://git.denx.de/u-boot
Signed-off-by: Stefano Babic <sbabic@denx.de> Conflicts: boards.cfg
Diffstat (limited to 'include/cli.h')
-rw-r--r--include/cli.h149
1 files changed, 149 insertions, 0 deletions
diff --git a/include/cli.h b/include/cli.h
new file mode 100644
index 0000000000..699426252c
--- /dev/null
+++ b/include/cli.h
@@ -0,0 +1,149 @@
+/*
+ * (C) Copyright 2014 Google, Inc
+ * Simon Glass <sjg@chromium.org>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __CLI_H
+#define __CLI_H
+
+/**
+ * Go into the command loop
+ *
+ * This will return if we get a timeout waiting for a command. See
+ * CONFIG_BOOT_RETRY_TIME.
+ */
+void cli_simple_loop(void);
+
+/**
+ * cli_simple_run_command() - Execute a command with the simple CLI
+ *
+ * @cmd: String containing the command to execute
+ * @flag Flag value - see CMD_FLAG_...
+ * @return 1 - command executed, repeatable
+ * 0 - command executed but not repeatable, interrupted commands are
+ * always considered not repeatable
+ * -1 - not executed (unrecognized, bootd recursion or too many args)
+ * (If cmd is NULL or "" or longer than CONFIG_SYS_CBSIZE-1 it is
+ * considered unrecognized)
+ */
+int cli_simple_run_command(const char *cmd, int flag);
+
+/**
+ * cli_simple_run_command_list() - Execute a list of command
+ *
+ * The commands should be separated by ; or \n and will be executed
+ * by the built-in parser.
+ *
+ * This function cannot take a const char * for the command, since if it
+ * finds newlines in the string, it replaces them with \0.
+ *
+ * @param cmd String containing list of commands
+ * @param flag Execution flags (CMD_FLAG_...)
+ * @return 0 on success, or != 0 on error.
+ */
+int cli_simple_run_command_list(char *cmd, int flag);
+
+/**
+ * cli_readline() - read a line into the console_buffer
+ *
+ * This is a convenience function which calls cli_readline_into_buffer().
+ *
+ * @prompt: Prompt to display
+ * @return command line length excluding terminator, or -ve on error
+ */
+int cli_readline(const char *const prompt);
+
+/**
+ * readline_into_buffer() - read a line into a buffer
+ *
+ * Display the prompt, then read a command line into @buffer. The
+ * maximum line length is CONFIG_SYS_CBSIZE including a \0 terminator, which
+ * will always be added.
+ *
+ * The command is echoed as it is typed. Command editing is supported if
+ * CONFIG_CMDLINE_EDITING is defined. Tab auto-complete is supported if
+ * CONFIG_AUTO_COMPLETE is defined. If CONFIG_BOOT_RETRY_TIME is defined,
+ * then a timeout will be applied.
+ *
+ * If CONFIG_BOOT_RETRY_TIME is defined and retry_time >= 0,
+ * time out when time goes past endtime (timebase time in ticks).
+ *
+ * @prompt: Prompt to display
+ * @buffer: Place to put the line that is entered
+ * @timeout: Timeout in milliseconds, 0 if none
+ * @return command line length excluding terminator, or -ve on error: of the
+ * timeout is exceeded (either CONFIG_BOOT_RETRY_TIME or the timeout
+ * parameter), then -2 is returned. If a break is detected (Ctrl-C) then
+ * -1 is returned.
+ */
+int cli_readline_into_buffer(const char *const prompt, char *buffer,
+ int timeout);
+
+/**
+ * parse_line() - split a command line down into separate arguments
+ *
+ * The argv[] array is filled with pointers into @line, and each argument
+ * is terminated by \0 (i.e. @line is changed in the process unless there
+ * is only one argument).
+ *
+ * #argv is terminated by a NULL after the last argument pointer.
+ *
+ * At most CONFIG_SYS_MAXARGS arguments are permited - if there are more
+ * than that then an error is printed, and this function returns
+ * CONFIG_SYS_MAXARGS, with argv[] set up to that point.
+ *
+ * @line: Command line to parse
+ * @args: Array to hold arguments
+ * @return number of arguments
+ */
+int cli_simple_parse_line(char *line, char *argv[]);
+
+#ifdef CONFIG_OF_CONTROL
+/**
+ * cli_process_fdt() - process the boot command from the FDT
+ *
+ * If bootcmmd is defined in the /config node of the FDT, we use that
+ * as the boot command. Further, if bootsecure is set to 1 (in the same
+ * node) then we return true, indicating that the command should be executed
+ * as securely as possible, avoiding the CLI parser.
+ *
+ * @cmdp: On entry, the command that will be executed if the FDT does
+ * not have a command. Returns the command to execute after
+ * checking the FDT.
+ * @return true to execute securely, else false
+ */
+bool cli_process_fdt(const char **cmdp);
+
+/** cli_secure_boot_cmd() - execute a command as securely as possible
+ *
+ * This avoids using the parser, thus executing the command with the
+ * smallest amount of code. Parameters are not supported.
+ */
+void cli_secure_boot_cmd(const char *cmd);
+#else
+static inline bool cli_process_fdt(const char **cmdp)
+{
+ return false;
+}
+
+static inline void cli_secure_boot_cmd(const char *cmd)
+{
+}
+#endif /* CONFIG_OF_CONTROL */
+
+/**
+ * Go into the command loop
+ *
+ * This will return if we get a timeout waiting for a command, but only for
+ * the simple parser (not hush). See CONFIG_BOOT_RETRY_TIME.
+ */
+void cli_loop(void);
+
+/** Set up the command line interpreter ready for action */
+void cli_init(void);
+
+#define endtick(seconds) (get_ticks() + (uint64_t)(seconds) * get_tbclk())
+
+#endif