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terminal.h
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1 /*************************************************************************************************/
2 /*!
3  * \file terminal.h
4  *
5  * \brief Terminal handler.
6  *
7  * Copyright (c) 2015-2018 Arm Ltd. All Rights Reserved.
8  *
9  * Copyright (c) 2019-2020 Packetcraft, Inc.
10  *
11  * Licensed under the Apache License, Version 2.0 (the "License");
12  * you may not use this file except in compliance with the License.
13  * You may obtain a copy of the License at
14  *
15  * http://www.apache.org/licenses/LICENSE-2.0
16  *
17  * Unless required by applicable law or agreed to in writing, software
18  * distributed under the License is distributed on an "AS IS" BASIS,
19  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20  * See the License for the specific language governing permissions and
21  * limitations under the License.
22  */
23 /*************************************************************************************************/
24 
25 #ifndef TERMINAL_H
26 #define TERMINAL_H
27 
28 #include <stdarg.h>
29 
30 #include "wsf_types.h"
31 #include "wsf_os.h"
32 
33 /*! \addtogroup WSF_UTIL_API
34  * \{ */
35 
36 /**************************************************************************************************
37  Macros
38 **************************************************************************************************/
39 
40 #ifndef TERMINAL_MAX_ARGC
41 #define TERMINAL_MAX_ARGC 8u /*!< \brief Maximum number of arguments to any command. */
42 #endif
43 #ifndef TERMINAL_MAX_COMMAND_LEN
44 #define TERMINAL_MAX_COMMAND_LEN 100u /*!< \brief Maximum length of command line. */
45 #endif
46 #define TERMINAL_PRINTF_MAX_LEN 256u /*!< \brief Maximum length of any printed output. */
47 #define TERMINAL_STRING_PROMPT "> " /*!< \brief Prompt string. */
48 #define TERMINAL_STRING_ERROR "ERROR: " /*!< \brief Error prefix. */
49 #define TERMINAL_STRING_USAGE "USAGE: " /*!< \brief Usage prefix. */
50 #define TERMINAL_STRING_NEW_LINE "\r\n" /*!< \brief New line string. */
51 
52 /*! \brief Terminal command error codes. */
53 enum
54 {
55  TERMINAL_ERROR_OK = 0, /*!< \brief Command completed. */
56  TERMINAL_ERROR_BAD_ARGUMENTS = 1, /*!< \brief ERROR: Invalid argument(s) */
57  TERMINAL_ERROR_TOO_FEW_ARGUMENTS = 2, /*!< \brief ERROR: Too few arguments */
58  TERMINAL_ERROR_TOO_MANY_ARGUMENTS = 3, /*!< \brief ERROR: Too many arguments */
59  TERMINAL_ERROR_EXEC = 4 /*!< \brief Command completed with execution error. */
60 };
61 
62 /**************************************************************************************************
63  Data Types
64 **************************************************************************************************/
65 
66 /*************************************************************************************************/
67 /*!
68  * \brief Handler for a terminal command.
69  *
70  * \param argc The number of arguments passed to the command.
71  * \param argv The array of arguments; the 0th argument is the command.
72  *
73  * \return Error code.
74  */
75 /*************************************************************************************************/
76 typedef uint8_t (*terminalHandler_t)(uint32_t argc, char **argv);
77 
78 /*************************************************************************************************/
79 /*!
80  * \brief Handler for transmit.
81  *
82  * \param pBuf Buffer to transmit.
83  * \param len Number of bytes to transmit.
84  */
85 /*************************************************************************************************/
86 typedef bool_t (*terminalUartTx_t)(const uint8_t *pBuf, uint32_t len);
87 
88 /*! \brief Terminal command. */
89 typedef struct terminalCommand_tag
90 {
91  struct terminalCommand_tag *pNext; /*!< \brief Pointer to next command in list. */
92  const char *pName; /*!< \brief Name of command. */
93  const char *pHelpStr; /*!< \brief Help String for command. */
94  terminalHandler_t handler; /*!< \brief Handler for command. */
95 } terminalCommand_t;
96 
97 /**************************************************************************************************
98  Function Prototypes
99 **************************************************************************************************/
100 
101 /*************************************************************************************************/
102 /*!
103  * \brief Initialize terminal.
104  *
105  * \param handlerId Handler ID for TerminalHandler().
106  */
107 /*************************************************************************************************/
108 void TerminalInit(wsfHandlerId_t handlerId);
109 
110 /*************************************************************************************************/
111 /*!
112  * \brief Register the UART Tx Function for the platform.
113  *
114  * \param uartTxFunc UART Tx callback function.
115  */
116 /*************************************************************************************************/
117 void TerminalRegisterUartTxFunc(terminalUartTx_t uartTxFunc);
118 
119 /*************************************************************************************************/
120 /*!
121  * \brief Register command with terminal.
122  *
123  * \param pCommand Command.
124  */
125 /*************************************************************************************************/
126 void TerminalRegisterCommand(terminalCommand_t *pCommand);
127 
128 /*************************************************************************************************/
129 /*!
130  * \brief Handler for terminal messages.
131  *
132  * \param event WSF event mask.
133  * \param pMsg WSF message.
134  */
135 /*************************************************************************************************/
136 void TerminalHandler(wsfEventMask_t event, wsfMsgHdr_t *pMsg);
137 
138 /*************************************************************************************************/
139 /*!
140  * \brief Called by application when a data byte is received.
141  *
142  * \param dataByte received byte
143  */
144 /*************************************************************************************************/
145 void TerminalRx(uint8_t dataByte);
146 
147 /*************************************************************************************************/
148 /*!
149  * \brief Called by application to transmit string.
150  *
151  * \param pStr String.
152  */
153 /*************************************************************************************************/
154 void TerminalTxStr(const char *pStr);
155 
156 /*************************************************************************************************/
157 /*!
158  * \brief Called by application to transmit character.
159  *
160  * \param c Character.
161  */
162 /*************************************************************************************************/
163 void TerminalTxChar(char c);
164 
165 /*************************************************************************************************/
166 /*!
167  * \brief Called by application to print formatted data.
168  *
169  * \param pStr Message format string
170  * \param ... Additional arguments, printf-style
171  */
172 /*************************************************************************************************/
173 void TerminalTxPrint(const char *pStr, ...);
174 
175 /*************************************************************************************************/
176 /*!
177  * \brief Application function to transmit data..
178  *
179  * \param pData Data.
180  * \param len Length of data, in bytes.
181  */
182 /*************************************************************************************************/
183 void TerminalTx(const uint8_t *pData, uint16_t len);
184 
185 /*! \} */ /* WSF_UTIL_API */
186 
187 #endif /* TERMINAL_H */
terminalCommand_t
struct terminalCommand_tag terminalCommand_t
Terminal command.
terminalCommand_tag::pHelpStr
const char * pHelpStr
Help String for command.
Definition: terminal.h:93
TerminalTxPrint
void TerminalTxPrint(const char *pStr,...)
Called by application to print formatted data.
TERMINAL_ERROR_OK
Command completed.
Definition: terminal.h:55
terminalHandler_t
uint8_t(* terminalHandler_t)(uint32_t argc, char **argv)
Handler for a terminal command.
Definition: terminal.h:76
TerminalInit
void TerminalInit(wsfHandlerId_t handlerId)
Initialize terminal.
wsfEventMask_t
uint16_t wsfEventMask_t
Event handler event mask data type.
Definition: wsf_os.h:83
TerminalTx
void TerminalTx(const uint8_t *pData, uint16_t len)
Application function to transmit data..
TerminalRegisterCommand
void TerminalRegisterCommand(terminalCommand_t *pCommand)
Register command with terminal.
TerminalRx
void TerminalRx(uint8_t dataByte)
Called by application when a data byte is received.
TerminalTxChar
void TerminalTxChar(char c)
Called by application to transmit character.
terminalCommand_tag::handler
terminalHandler_t handler
Handler for command.
Definition: terminal.h:94
terminalUartTx_t
bool_t(* terminalUartTx_t)(const uint8_t *pBuf, uint32_t len)
Handler for transmit.
Definition: terminal.h:86
terminalCommand_tag::pNext
struct terminalCommand_tag * pNext
Pointer to next command in list.
Definition: terminal.h:91
terminalCommand_tag
Terminal command.
Definition: terminal.h:89
wsf_types.h
Platform-independent data types.
TerminalRegisterUartTxFunc
void TerminalRegisterUartTxFunc(terminalUartTx_t uartTxFunc)
Register the UART Tx Function for the platform.
wsfHandlerId_t
uint8_t wsfHandlerId_t
Event handler ID data type.
Definition: wsf_os.h:80
terminalCommand_tag::pName
const char * pName
Name of command.
Definition: terminal.h:92
TERMINAL_ERROR_BAD_ARGUMENTS
ERROR: Invalid argument(s)
Definition: terminal.h:56
TERMINAL_ERROR_EXEC
Command completed with execution error.
Definition: terminal.h:59
TERMINAL_ERROR_TOO_MANY_ARGUMENTS
ERROR: Too many arguments.
Definition: terminal.h:58
TERMINAL_ERROR_TOO_FEW_ARGUMENTS
ERROR: Too few arguments.
Definition: terminal.h:57
TerminalTxStr
void TerminalTxStr(const char *pStr)
Called by application to transmit string.
wsf_os.h
Software foundation OS API.
wsfMsgHdr_t
Common message structure passed to event handler.
Definition: wsf_os.h:106
TerminalHandler
void TerminalHandler(wsfEventMask_t event, wsfMsgHdr_t *pMsg)
Handler for terminal messages.
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