1 /*******************************************************************
2 Components for embedded applications builded for
3 laboratory and medical instruments firmware
5 cmd_proc.h - text line command processor
6 designed for instruments control and setup
9 Copyright (C) 2001-2009 by Pavel Pisa pisa@cmp.felk.cvut.cz
10 (C) 2002-2009 by PiKRON Ltd. http://www.pikron.com
11 (C) 2007 by Michal Sojka <sojkam1@fel.cvut.cz>
13 This file can be used and copied according to next
15 - MPL - Mozilla Public License
16 - GPL - GNU Public License
17 - other license provided by project originators
18 *******************************************************************/
23 #define CMD_PROC_WITH_FILE
25 #ifdef CMD_PROC_WITH_FILE
29 #define FL_ELB_ECHO 0x10 /* Read characters are echoed back */
30 #define FL_ELB_INSEND 0x20 /* The line is currently being sent */
31 #define FL_ELB_NOCRLF 0x40 /* CR and/or LF will not start a new
32 * line (used for out buffers to store
33 * more than a single line) */
34 #define CMD_DES_CONTINUE_AT_ID ((cmd_des_t*)1)
35 #define CMD_DES_INCLUDE_SUBLIST_ID ((cmd_des_t*)2)
36 #define CMD_DES_CONTINUE_AT(list) CMD_DES_CONTINUE_AT_ID,((cmd_des_t*)list)
37 #define CMD_DES_INCLUDE_SUBLIST(list) CMD_DES_INCLUDE_SUBLIST_ID,((cmd_des_t*)list)
39 /* generic cmd_io structure */
41 /* buffer for in/out line collection */
43 int flg; /* FL_ELB_xxx */
44 int inbuf; /* Index to store new characters */
45 int alloc; /* Size of the buffer pointed by buf */
47 int lastch; /* Last characted added to the buffer.
48 * If FL_ELB_INSEND is set, lastch is
49 * index of last sent char. */
53 /* Structure for character input output. It is used either for direct
54 * access to IO device or for buffered IO. In the later case,
55 * priv.edline is used to store buffer information. */
56 typedef struct cmd_io{
57 int (*putc)(struct cmd_io *cmd_io,int ch);
58 int (*getc)(struct cmd_io *cmd_io);
59 int (*write)(struct cmd_io *cmd_io,const void *buf,int count);
60 int (*read)(struct cmd_io *cmd_io,void *buf,int count);
63 ed_line_buf_t *in; /* Buffer for storing the read command line */
64 ed_line_buf_t *out; /* Temporarily stores characters to be sent
65 * out (until the send operation is
66 * finished). This is not used for echo
68 struct cmd_io *io_stack;
74 #ifdef CMD_PROC_WITH_FILE
79 #endif /*CMD_PROC_WITH_FILE*/
86 static inline int cmd_io_putc(struct cmd_io *cmd_io,int ch)
87 { if(!cmd_io->putc) return -1;
88 return (*cmd_io->putc)(cmd_io,ch);
91 static inline int cmd_io_getc(struct cmd_io *cmd_io)
92 { if(!cmd_io->getc) return -1;
93 return (*cmd_io->getc)(cmd_io);
96 static inline int cmd_io_write(struct cmd_io *cmd_io,const void *buf,int count)
97 { if(!cmd_io->write) return -1;
98 return (*cmd_io->write)(cmd_io,buf,count);
101 static inline int cmd_io_read(struct cmd_io *cmd_io,void *buf,int count)
102 { if(!cmd_io->read) return -1;
103 return (*cmd_io->read)(cmd_io,buf,count);
106 int cmd_io_puts(cmd_io_t *cmd_io, const char *str);
108 int cmd_io_line_putc(cmd_io_t *cmd_io,int ch);
110 int cmd_io_write_bychar(cmd_io_t *cmd_io,const void *buf,int count);
112 int cmd_io_read_bychar(cmd_io_t *cmd_io,void *buf,int count);
114 /* command descriptions */
116 #define CDESM_OPCHR 0x10 /* Command uses operation character */
117 #define CDESM_RD 0x01 /* Value read is possible */
118 #define CDESM_WR 0x02 /* Value write is possible */
119 #define CDESM_RW (CDESM_RD|CDESM_WR) /* Both */
120 #define CDESM_SPACE_SEP 0x20 /* Whitespace separated params - replaces space with '\0' */
123 * Command descriptor.
125 * Command name may contain the following wildcards:
126 * - '?' stands for one alphanumeric character
127 * - '#' stands for one digit
128 * - '*' stands for any number of alphanumeric characters at the end of the command
130 * The fnc() function is passed the following information as the param array:
131 * - param[0] points to the command (the longest sequence of alphanumeric characters)
132 * If CDESM_OPCHR is specified in the command descriptor then
133 * - param[1] points to the first wildcard in the command or is NULL for commands without wildcard in the name
134 * - param[2] points to the operation character (':' or '?') and
135 * - param[3] points to the string after the operation character (after skipping whitespace)
136 * If CDESM_OPCHR is not specified then
137 * If the command name contains a wildcard,
138 * - param[1] points to the first wildcard in the command and
139 * If the command has any parameters
140 * - param[1] or param[2] (depending on the presence of a wildcard)
141 * points to the beginning of those parameters (after skipping
144 * If CDESM_SPACE_SEP is specified in the command descriptor, then
145 * the command arguments are split at whitespace by '\0'
146 * characters and stored in the next unused param elements. Param
147 * array can contain up to 9 elements.
149 * The param elements are always terminated by NULL element.
151 typedef struct cmd_des{
152 int code; /* Application specific code */
153 int mode; /* CDESM_* constants */
154 char *name; /* Name of the command with possible wildcards */
156 int (*fnc)(cmd_io_t *cmd_io, const struct cmd_des *des, char *param[]);
160 #define CMDERR_BADCMD 2
161 #define CMDERR_OPCHAR 10
162 #define CMDERR_WRPERM 11
163 #define CMDERR_RDPERM 12
164 #define CMDERR_GARBAG 13
165 #define CMDERR_BADSEP 14
166 #define CMDERR_BADCFG 15
167 #define CMDERR_NOMEM 16
168 #define CMDERR_BADSUF 17
169 #define CMDERR_BADPAR 20
170 #define CMDERR_VALOOR 21
171 #define CMDERR_BADREG 40
172 #define CMDERR_BSYREG 41
173 #define CMDERR_BADDIO 50
174 #define CMDERR_NODEV 60
175 #define CMDERR_TIMEOUT 61
176 #define CMDERR_EIO 62
178 int cmd_opchar_check(cmd_io_t *cmd_io, const struct cmd_des *des, char *param[]);
180 int cmd_num_suffix(cmd_io_t *cmd_io, const struct cmd_des *des, char *param[], unsigned *val);
182 int proc_cmd_line(cmd_io_t *cmd_io, cmd_des_t const **des_arr, char *line);
184 int i2str(char *s,long val,int len,int form);
186 int cmd_do_stamp(cmd_io_t *cmd_io, const struct cmd_des *des, char *param[]);
188 int cmd_do_help(cmd_io_t *cmd_io, const struct cmd_des *des, char *param[]);
190 int cmd_do_rw_short(cmd_io_t *cmd_io, const struct cmd_des *des, char *param[]);
192 int cmd_do_rw_int(cmd_io_t *cmd_io, const struct cmd_des *des, char *param[]);
194 int cmd_do_rw_long(cmd_io_t *cmd_io, const struct cmd_des *des, char *param[]);
196 int cmd_do_rw_bitflag(cmd_io_t *cmd_io, const struct cmd_des *des, char *param[]);
198 int cmd_opchar_replong(cmd_io_t *cmd_io, char *param[], long val,int len,int form);
200 int cmd_processor_run(cmd_io_t *cmd_io, cmd_des_t const **commands);
202 #endif /* _CMD_PROC_H_ */
204 /* Local Variables: */
205 /* c-basic-offset: 2 */