/**
* @file rtems/shell.h
*
* Instantatiate a new terminal shell.
*/
/*
* Author:
*
* WORK: fernando.ruiz@ctv.es
* HOME: correo@fernando-ruiz.com
*
* Thanks at:
* Chris Johns
*
* $Id$
*/
#ifndef __RTEMS_SHELL_H__
#define __RTEMS_SHELL_H__
#include <rtems.h>
#include <stdio.h>
#include <termios.h>
#include <rtems/fs.h>
#include <rtems/libio.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef int (*rtems_shell_command_t)(int argc,char * argv[]);
struct rtems_shell_cmd_tt;
typedef struct rtems_shell_cmd_tt rtems_shell_cmd_t;
struct rtems_shell_cmd_tt {
char *name;
char *usage;
char *topic;
rtems_shell_command_t command;
rtems_shell_cmd_t *alias;
rtems_shell_cmd_t *next;
};
typedef struct {
char *name;
char *alias;
} rtems_shell_alias_t;
rtems_shell_cmd_t * rtems_shell_lookup_cmd(char * cmd);
rtems_shell_cmd_t *rtems_shell_add_cmd_struct(
rtems_shell_cmd_t *shell_cmd
);
rtems_shell_cmd_t * rtems_shell_add_cmd(
char *cmd,
char *topic,
char *usage,
rtems_shell_command_t command
);
rtems_shell_cmd_t * rtems_shell_alias_cmd(
char *cmd,
char *alias
);
int rtems_shell_make_args(
char *commandLine,
int *argc_p,
char **argv_p,
int max_args
);
int rtems_shell_scanline(char * line,int size,FILE * in,FILE * out) ;
void rtems_shell_cat_file(FILE * out,char *name);
void rtems_shell_write_file(char *name,char * content);
/**
* Initialise the shell creating tasks to login and run the shell
* sessions.
*
* @param task_name Name of the shell task.
* @param task_stacksize The size of the stack. If 0 the default size is used.
* @param task_priority The priority the shell runs at.
* @param tcflag The termios c_cflag value. If 0 the default is used, if
* not 0 the value is ORed with CLOCAL and CREAD.
* @param forever Repeat logins.
*
* @todo CCJ I am not sure this termios flag setting is a good idea. The shell
* needs to adjust the termios for its use but it should assume the
* settings are set by the user for things like baudrate etc.
*/
rtems_status_code rtems_shell_init(
char *task_name,
uint32_t task_stacksize, /*0 default*/
rtems_task_priority task_priority,
char *devname,
tcflag_t tcflag,
int forever
);
/**
* Run a shell script creating a shell tasks to execute the command under.
*
* @param task_name Name of the shell task.
* @param task_stacksize The size of the stack. If 0 the default size is used.
* @param task_priority The priority the shell runs at.
* @param input The file of commands. Can be 'stdin' to use stdin.
* @param output The output file to write commands to. Can be 'stdout',
* 'stderr' or '/dev/null'.
* @param output_append Append the output to the file or truncate the file.
* Create if it does not exist.
* @param wait Wait for the script to finish.
*/
rtems_status_code rtems_shell_script(
char *task_name,
uint32_t task_stacksize, /*0 default*/
rtems_task_priority task_priority,
const char *input,
const char *output,
int output_append,
int wait
);
/*
* Things that are useful to external entities developing commands and plugging
* them in.
*/
int rtems_shell_str2int(char * s);
typedef struct {
rtems_name magic; /* 'S','E','N','V': Shell Environment */
char *devname;
char *taskname;
tcflag_t tcflag;
/* user extensions */
int exit_shell; /* logout */
int forever ; /* repeat login */
int errorlevel;
uintptr_t mdump_addr;
const char* input;
const char* output;
int output_append;
rtems_id wake_on_end;
} rtems_shell_env_t;
rtems_boolean rtems_shell_main_loop(
rtems_shell_env_t *rtems_shell_env
);
extern rtems_shell_env_t rtems_global_shell_env;
extern rtems_shell_env_t *rtems_current_shell_env;
/*
* The types of file systems we can mount. We have them broken out
* out like this so they can be configured by shellconfig.h. The
* mount command needs special treatment due to some file systems
* being dependent on the network stack and some not. If we had
* all possible file systems being included it would force the
* networking stack into the applcation and this may not be
* required.
*/
struct rtems_shell_filesystems_tt;
typedef struct rtems_shell_filesystems_tt rtems_shell_filesystems_t;
typedef int (*rtems_shell_filesystems_mounter_t)(
const char* driver,
const char* path,
rtems_shell_filesystems_t* fs,
rtems_filesystem_options_t options
);
struct rtems_shell_filesystems_tt {
const char* name;
int driver_needed;
rtems_filesystem_operations_table* fs_ops;
rtems_shell_filesystems_mounter_t mounter;
};
#ifdef __cplusplus
}
#endif
#endif
