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MCUXpresso_LPC54102/devices/LPC54102/utilities/fsl_shell.c

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/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* Copyright 2016-2019 NXP
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
* POSIX getopt for Windows
* Code given out at the 1985 UNIFORUM conference in Dallas.
*
* From std-unix@ut-sally.UUCP (Moderator, John Quarterman) Sun Nov 3 14:34:15 1985
* Relay-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site gatech.CSNET
* Posting-Version: version B 2.10.2 9/18/84; site ut-sally.UUCP
* Path: gatech!akgua!mhuxv!mhuxt!mhuxr!ulysses!allegra!mit-eddie!genrad!panda!talcott!harvard!seismo!ut-sally!std-unix
* From: std-unix@ut-sally.UUCP (Moderator, John Quarterman)
* Newsgroups: mod.std.unix
* Subject: public domain AT&T getopt source
* Message-ID: <3352@ut-sally.UUCP>
* Date: 3 Nov 85 19:34:15 GMT
* Date-Received: 4 Nov 85 12:25:09 GMT
* Organization: IEEE/P1003 Portable Operating System Environment Committee
* Lines: 91
* Approved: jsq@ut-sally.UUC
* Here's something you've all been waiting for: the AT&T public domain
* source for getopt(3). It is the code which was given out at the 1985
* UNIFORUM conference in Dallas. I obtained it by electronic mail
* directly from AT&T. The people there assure me that it is indeed
* in the public domain
* There is no manual page. That is because the one they gave out at
* UNIFORUM was slightly different from the current System V Release 2
* manual page. The difference apparently involved a note about the
* famous rules 5 and 6, recommending using white space between an option
* and its first argument, and not grouping options that have arguments.
* Getopt itself is currently lenient about both of these things White
* space is allowed, but not mandatory, and the last option in a group can
* have an argument. That particular version of the man page evidently
* has no official existence, and my source at AT&T did not send a copy.
* The current SVR2 man page reflects the actual behavor of this getopt.
* However, I am not about to post a copy of anything licensed by AT&T.
*/
#include <assert.h>
#include <stdarg.h>
#include <stdlib.h>
#include "fsl_str.h"
#include "generic_list.h"
#include "serial_manager.h"
#include "fsl_shell.h"
/*
* The OSA_USED macro can only be defined when the OSA component is used.
* If the source code of the OSA component does not exist, the OSA_USED cannot be defined.
* OR, If OSA component is not added into project event the OSA source code exists, the OSA_USED
* also cannot be defined.
* The source code path of the OSA component is <MCUXpresso_SDK>/components/osa.
*
*/
#if defined(OSA_USED)
#if (defined(SHELL_USE_COMMON_TASK) && (SHELL_USE_COMMON_TASK > 0U))
#include "common_task.h"
#else
#include "fsl_os_abstraction.h"
#endif
#endif
/*******************************************************************************
* Definitions
******************************************************************************/
#define KEY_ESC (0x1BU)
#define KET_DEL (0x7FU)
#define SHELL_EVENT_DATA_ARRIVED (1U << 0)
#define SHELL_EVENT_DATA_SENT (1U << 1)
#define SHELL_SPRINTF_BUFFER_SIZE (64U)
/*! @brief A type for the handle special key. */
typedef enum _fun_key_status
{
kSHELL_Normal = 0U, /*!< Normal key */
kSHELL_Special = 1U, /*!< Special key */
kSHELL_Function = 2U, /*!< Function key */
} fun_key_status_t;
/*! @brief Data structure for Shell environment. */
typedef struct _shell_context_handle
{
list_label_t commandContextListHead; /*!< Command shellContextHandle list queue head */
serial_handle_t serialHandle; /*!< Serial manager handle */
uint8_t
serialWriteHandleBuffer[SERIAL_MANAGER_WRITE_HANDLE_SIZE]; /*!< The buffer for serial manager write handle */
serial_write_handle_t serialWriteHandle; /*!< The serial manager write handle */
uint8_t serialReadHandleBuffer[SERIAL_MANAGER_READ_HANDLE_SIZE]; /*!< The buffer for serial manager read handle */
serial_read_handle_t serialReadHandle; /*!< The serial manager read handle */
char *prompt; /*!< Prompt string */
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))
#if defined(OSA_USED)
#if (defined(SHELL_USE_COMMON_TASK) && (SHELL_USE_COMMON_TASK > 0U))
common_task_message_t commontaskMsg; /*!< Message for common task */
#else
uint8_t event[OSA_EVENT_HANDLE_SIZE]; /*!< Event instance */
uint8_t taskId[OSA_TASK_HANDLE_SIZE]; /*!< Task handle */
#endif
#endif
#endif
char line[SHELL_BUFFER_SIZE]; /*!< Consult buffer */
char hist_buf[SHELL_HISTORY_COUNT][SHELL_BUFFER_SIZE]; /*!< History buffer*/
char printBuffer[SHELL_SPRINTF_BUFFER_SIZE]; /*!< Buffer for print */
uint32_t printLength; /*!< All length has been printed */
uint16_t hist_current; /*!< Current history command in hist buff*/
uint16_t hist_count; /*!< Total history command in hist buff*/
enum _fun_key_status stat; /*!< Special key status */
uint8_t cmd_num; /*!< Number of user commands */
uint8_t l_pos; /*!< Total line position */
uint8_t c_pos; /*!< Current line position */
volatile uint8_t notificationPost; /*!< The serial manager notification is post */
uint8_t exit; /*!< Exit Flag*/
uint8_t printBusy; /*!< Print is busy */
} shell_context_handle_t;
#define SHELL_STRUCT_OFFSET(type, field) ((size_t) & (((type *)0)->field))
#define SHEEL_COMMAND_POINTER(node) ((shell_command_t *)(((uint32_t)node) - SHELL_STRUCT_OFFSET(shell_command_t, link)))
/*******************************************************************************
* Prototypes
******************************************************************************/
static shell_status_t SHELL_HelpCommand(shell_handle_t shellHandle, int32_t argc, char **argv); /*!< help command */
static shell_status_t SHELL_ExitCommand(shell_handle_t shellHandle, int32_t argc, char **argv); /*!< exit command */
static int32_t SHELL_ParseLine(const char *cmd, uint32_t len, char *argv[]); /*!< parse line command */
static int32_t SHELL_StringCompare(const char *str1, const char *str2, int32_t count); /*!< compare string command */
static void SHELL_ProcessCommand(shell_context_handle_t *shellContextHandle, const char *cmd); /*!< process a command */
static void SHELL_GetHistoryCommand(shell_context_handle_t *shellContextHandle,
uint8_t hist_pos); /*!< get commands history */
static void SHELL_AutoComplete(shell_context_handle_t *shellContextHandle); /*!< auto complete command */
static shell_status_t SHELL_GetChar(shell_context_handle_t *shellContextHandle,
uint8_t *ch); /*!< get a char from communication interface */
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))
static void SHELL_Task(void *param); /*!< Shell task*/
#endif
/*******************************************************************************
* Variables
******************************************************************************/
static SHELL_COMMAND_DEFINE(help, "\r\n\"help\": List all the registered commands\r\n", SHELL_HelpCommand, 0);
static SHELL_COMMAND_DEFINE(exit, "\r\n\"exit\": Exit program\r\n", SHELL_ExitCommand, 0);
static char s_paramBuffer[SHELL_BUFFER_SIZE];
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))
#if defined(OSA_USED)
#if (defined(SHELL_USE_COMMON_TASK) && (SHELL_USE_COMMON_TASK > 0U))
#else
/*
* \brief Defines the serial manager task's stack
*/
OSA_TASK_DEFINE(SHELL_Task, SHELL_TASK_PRIORITY, 1, SHELL_TASK_STACK_SIZE, false);
#endif
#endif
#endif
/*******************************************************************************
* Code
******************************************************************************/
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))
static void SHELL_SerialManagerRxCallback(void *callbackParam,
serial_manager_callback_message_t *message,
serial_manager_status_t status)
{
shell_context_handle_t *shellHandle;
assert(callbackParam);
assert(message);
shellHandle = (shell_context_handle_t *)callbackParam;
if (!shellHandle->notificationPost)
{
shellHandle->notificationPost = 1U;
#if defined(OSA_USED)
#if (defined(SHELL_USE_COMMON_TASK) && (SHELL_USE_COMMON_TASK > 0U))
shellHandle->commontaskMsg.callback = SHELL_Task;
shellHandle->commontaskMsg.callbackParam = shellHandle;
COMMON_TASK_post_message(&shellHandle->commontaskMsg);
#else
(void)OSA_EventSet((osa_event_handle_t)shellHandle->event, SHELL_EVENT_DATA_ARRIVED);
#endif
#else
SHELL_Task(shellHandle);
#endif
}
}
#endif
static void SHELL_WriteBuffer(char *buffer, int32_t *indicator, char val, int len)
{
shell_context_handle_t *shellContextHandle;
int i = 0;
shellContextHandle = (shell_context_handle_t *)buffer;
for (i = 0; i < len; i++)
{
if ((uint32_t)(*indicator + 1) >= SHELL_SPRINTF_BUFFER_SIZE)
{
(void)SerialManager_WriteBlocking(shellContextHandle->serialWriteHandle,
(uint8_t *)shellContextHandle->printBuffer, (uint32_t)*indicator);
shellContextHandle->printLength += (uint32_t)*indicator;
*indicator = 0;
}
shellContextHandle->printBuffer[*indicator] = val;
(*indicator)++;
}
}
static int SHELL_Sprintf(void *buffer, const char *formatString, va_list ap)
{
shell_context_handle_t *shellContextHandle;
uint32_t length;
shellContextHandle = (shell_context_handle_t *)buffer;
length = (uint32_t)StrFormatPrintf(formatString, ap, (char *)buffer, SHELL_WriteBuffer);
shellContextHandle->printLength += length;
return (int32_t)length;
}
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))
static void SHELL_Task(void *param)
#else
void SHELL_Task(shell_handle_t shellHandle)
#endif
{
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))
shell_context_handle_t *shellContextHandle = (shell_context_handle_t *)param;
#else
shell_context_handle_t *shellContextHandle = (shell_context_handle_t *)shellHandle;
#endif
uint8_t ch;
if (NULL != shellContextHandle)
{
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))
#if defined(OSA_USED)
#if (defined(SHELL_USE_COMMON_TASK) && (SHELL_USE_COMMON_TASK > 0U))
#else
osa_event_flags_t ev = 0;
do
{
if (KOSA_StatusSuccess == OSA_EventWait((osa_event_handle_t)shellContextHandle->event, osaEventFlagsAll_c,
false, osaWaitForever_c, &ev))
{
if (ev & SHELL_EVENT_DATA_ARRIVED)
#endif
#endif
#endif
{
shellContextHandle->notificationPost = 0;
do
{
if ((bool)shellContextHandle->exit)
{
if (shellContextHandle->serialReadHandle != NULL)
{
(void)SerialManager_CloseReadHandle(shellContextHandle->serialReadHandle);
shellContextHandle->serialReadHandle = NULL;
}
if (shellContextHandle->serialWriteHandle != NULL)
{
(void)SerialManager_CloseWriteHandle(shellContextHandle->serialWriteHandle);
shellContextHandle->serialWriteHandle = NULL;
}
break;
}
if (kStatus_SHELL_Success != (shell_status_t)SHELL_GetChar(shellContextHandle, &ch))
{
/* If error occurred when getting a char, exit the task and waiting the new data arriving. */
break;
}
/* Special key */
if (ch == KEY_ESC)
{
shellContextHandle->stat = kSHELL_Special;
continue;
}
else if (shellContextHandle->stat == kSHELL_Special)
{
/* Function key */
if ((char)ch == '[')
{
shellContextHandle->stat = kSHELL_Function;
continue;
}
shellContextHandle->stat = kSHELL_Normal;
}
else if (shellContextHandle->stat == kSHELL_Function)
{
shellContextHandle->stat = kSHELL_Normal;
switch ((uint8_t)ch)
{
/* History operation here */
case 'A': /* Up key */
SHELL_GetHistoryCommand(shellContextHandle, (uint8_t)shellContextHandle->hist_current);
if (shellContextHandle->hist_current < (shellContextHandle->hist_count - 1U))
{
shellContextHandle->hist_current++;
}
break;
case 'B': /* Down key */
SHELL_GetHistoryCommand(shellContextHandle, (uint8_t)shellContextHandle->hist_current);
if (shellContextHandle->hist_current > 0U)
{
shellContextHandle->hist_current--;
}
break;
case 'D': /* Left key */
if ((bool)shellContextHandle->c_pos)
{
(void)SHELL_Write(shellContextHandle, "\b", 1);
shellContextHandle->c_pos--;
}
break;
case 'C': /* Right key */
if (shellContextHandle->c_pos < shellContextHandle->l_pos)
{
(void)SHELL_Write(shellContextHandle,
&shellContextHandle->line[shellContextHandle->c_pos], 1);
shellContextHandle->c_pos++;
}
break;
default:
break;
}
continue;
}
/* Handle tab key */
else if ((char)ch == '\t')
{
#if SHELL_AUTO_COMPLETE
/* Move the cursor to the beginning of line */
int i;
for (i = 0; i < shellContextHandle->c_pos; i++)
{
(void)SHELL_Write(shellContextHandle, "\b", 1);
}
/* Do auto complete */
SHELL_AutoComplete(shellContextHandle);
/* Move position to end */
shellContextHandle->c_pos = shellContextHandle->l_pos = (uint8_t)strlen(shellContextHandle->line);
#endif
continue;
}
/* Handle backspace key */
else if ((ch == KET_DEL) || ((char)ch == '\b'))
{
/* There must be at last one char */
if (shellContextHandle->c_pos == 0U)
{
continue;
}
shellContextHandle->l_pos--;
shellContextHandle->c_pos--;
if (shellContextHandle->l_pos > shellContextHandle->c_pos)
{
(void)memmove(&shellContextHandle->line[shellContextHandle->c_pos],
&shellContextHandle->line[shellContextHandle->c_pos + 1U],
shellContextHandle->l_pos - shellContextHandle->c_pos);
shellContextHandle->line[shellContextHandle->l_pos] = 0U;
(void)SHELL_Write(shellContextHandle, "\b", 1);
(void)SHELL_Write(shellContextHandle, &shellContextHandle->line[shellContextHandle->c_pos],
strlen(&shellContextHandle->line[shellContextHandle->c_pos]));
(void)SHELL_Write(shellContextHandle, " \b", 3);
/* Reset position */
int i;
for (i = shellContextHandle->c_pos; i <= shellContextHandle->l_pos; i++)
{
(void)SHELL_Write(shellContextHandle, "\b", 1);
}
}
else /* Normal backspace operation */
{
(void)SHELL_Write(shellContextHandle, "\b \b", 3);
shellContextHandle->line[shellContextHandle->l_pos] = 0U;
}
continue;
}
else
{
}
/* Input too long */
if (shellContextHandle->l_pos >= (SHELL_BUFFER_SIZE - 1U))
{
shellContextHandle->l_pos = 0;
}
/* Handle end of line, break */
if (((char)ch == '\r') || ((char)ch == '\n'))
{
static char endoflinechar = 0U;
if (((uint8_t)endoflinechar != 0U) && ((uint8_t)endoflinechar != ch))
{
continue;
}
else
{
endoflinechar = (char)ch;
(void)SHELL_Write(shellContextHandle, "\r\n", 2);
/* If command line is NULL, will start a new transfer */
if (0U == strlen(shellContextHandle->line))
{
(void)SHELL_Write(shellContextHandle, shellContextHandle->prompt,
strlen(shellContextHandle->prompt));
continue;
}
SHELL_ProcessCommand(shellContextHandle, shellContextHandle->line);
/* Reset all params */
shellContextHandle->c_pos = shellContextHandle->l_pos = 0;
shellContextHandle->hist_current = 0;
(void)SHELL_Write(shellContextHandle, shellContextHandle->prompt,
strlen(shellContextHandle->prompt));
memset(shellContextHandle->line, 0, sizeof(shellContextHandle->line));
continue;
}
}
/* Normal character */
if (shellContextHandle->c_pos < shellContextHandle->l_pos)
{
(void)memmove(&shellContextHandle->line[shellContextHandle->c_pos + 1U],
&shellContextHandle->line[shellContextHandle->c_pos],
shellContextHandle->l_pos - shellContextHandle->c_pos);
shellContextHandle->line[shellContextHandle->c_pos] = (char)ch;
(void)SHELL_Write(shellContextHandle, &shellContextHandle->line[shellContextHandle->c_pos],
strlen(&shellContextHandle->line[shellContextHandle->c_pos]));
/* Move the cursor to new position */
int i;
for (i = shellContextHandle->c_pos; i < shellContextHandle->l_pos; i++)
{
(void)SHELL_Write(shellContextHandle, "\b", 1);
}
}
else
{
shellContextHandle->line[shellContextHandle->l_pos] = (char)ch;
(void)SHELL_Write(shellContextHandle, &shellContextHandle->line[shellContextHandle->l_pos], 1);
}
ch = 0;
shellContextHandle->l_pos++;
shellContextHandle->c_pos++;
} while (!shellContextHandle->exit);
}
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))
#if defined(OSA_USED)
#if (defined(SHELL_USE_COMMON_TASK) && (SHELL_USE_COMMON_TASK > 0U))
#else
}
} while (gUseRtos_c);
#endif
#endif
#endif
}
}
static shell_status_t SHELL_HelpCommand(shell_handle_t shellHandle, int32_t argc, char **argv)
{
shell_context_handle_t *shellContextHandle = (shell_context_handle_t *)shellHandle;
shell_command_t *shellCommandContextHandle;
list_element_handle_t p = LIST_GetHead(&shellContextHandle->commandContextListHead);
while (p != NULL)
{
shellCommandContextHandle = SHEEL_COMMAND_POINTER(p);
if ((shellCommandContextHandle->pcHelpString != NULL) && (bool)strlen(shellCommandContextHandle->pcHelpString))
{
(void)SHELL_Write(shellContextHandle, shellCommandContextHandle->pcHelpString,
strlen(shellCommandContextHandle->pcHelpString));
}
p = LIST_GetNext(p);
}
return kStatus_SHELL_Success;
}
static shell_status_t SHELL_ExitCommand(shell_handle_t shellHandle, int32_t argc, char **argv)
{
shell_context_handle_t *shellContextHandle = (shell_context_handle_t *)shellHandle;
/* Skip warning */
(void)SHELL_Write(shellContextHandle, "\r\nSHELL exited\r\n", strlen("\r\nSHELL exited\r\n"));
shellContextHandle->exit = (uint8_t) true;
return kStatus_SHELL_Success;
}
static void SHELL_ProcessCommand(shell_context_handle_t *shellContextHandle, const char *cmd)
{
shell_command_t *tmpCommand = NULL;
const char *tmpCommandString;
int32_t argc;
char *argv[SHELL_BUFFER_SIZE];
list_element_handle_t p;
uint8_t flag = 1;
uint8_t tmpCommandLen;
uint8_t tmpLen;
uint8_t i = 0;
tmpLen = (uint8_t)strlen(cmd);
argc = SHELL_ParseLine(cmd, tmpLen, argv);
if ((argc > 0))
{
p = LIST_GetHead(&shellContextHandle->commandContextListHead);
while (p != NULL)
{
tmpCommand = SHEEL_COMMAND_POINTER(p);
tmpCommandString = tmpCommand->pcCommand;
tmpCommandLen = (uint8_t)strlen(tmpCommandString);
/* Compare with space or end of string */
if ((cmd[tmpCommandLen] == ' ') || (cmd[tmpCommandLen] == (char)0x00))
{
if (SHELL_StringCompare(tmpCommandString, argv[0], (uint32_t)tmpCommandLen) == 0)
{
/* support commands with optional number of parameters */
if (tmpCommand->cExpectedNumberOfParameters == (uint8_t)SHELL_IGNORE_PARAMETER_COUNT)
{
flag = 0;
}
else if ((tmpCommand->cExpectedNumberOfParameters == 0U) && (argc == 1))
{
flag = 0;
}
else if (tmpCommand->cExpectedNumberOfParameters > 0U)
{
if ((argc - 1U) == tmpCommand->cExpectedNumberOfParameters)
{
flag = 0;
}
}
else
{
flag = 1;
}
break;
}
}
p = LIST_GetNext(p);
}
if (NULL == p)
{
tmpCommand = NULL;
}
}
if ((tmpCommand != NULL) && (flag == 1U))
{
(void)SHELL_Write(
shellContextHandle,
"\r\nIncorrect command parameter(s). Enter \"help\" to view a list of available commands.\r\n\r\n",
strlen(
"\r\nIncorrect command parameter(s). Enter \"help\" to view a list of available commands.\r\n\r\n"));
tmpCommand = NULL;
}
else if (tmpCommand != NULL)
{
tmpLen = (uint8_t)strlen(cmd);
/* Compare with last command. Push back to history buffer if different */
if (tmpLen != (uint8_t)SHELL_StringCompare(cmd, shellContextHandle->hist_buf[0], (int32_t)strlen(cmd)))
{
for (i = SHELL_HISTORY_COUNT - 1U; i > 0U; i--)
{
(void)memset(shellContextHandle->hist_buf[i], '\0', SHELL_BUFFER_SIZE);
tmpLen = (uint8_t)strlen(shellContextHandle->hist_buf[i - 1U]);
(void)memcpy(shellContextHandle->hist_buf[i], shellContextHandle->hist_buf[i - 1U], tmpLen);
}
(void)memset(shellContextHandle->hist_buf[0], '\0', SHELL_BUFFER_SIZE);
tmpLen = (uint8_t)strlen(cmd);
(void)memcpy(shellContextHandle->hist_buf[0], cmd, tmpLen);
if (shellContextHandle->hist_count < SHELL_HISTORY_COUNT)
{
shellContextHandle->hist_count++;
}
}
tmpCommand->pFuncCallBack(shellContextHandle, argc, argv);
tmpCommand = NULL;
}
else
{
(void)SHELL_Write(
shellContextHandle,
"\r\nCommand not recognized. Enter 'help' to view a list of available commands.\r\n\r\n",
strlen("\r\nCommand not recognized. Enter 'help' to view a list of available commands.\r\n\r\n"));
tmpCommand = NULL;
}
}
static void SHELL_GetHistoryCommand(shell_context_handle_t *shellContextHandle, uint8_t hist_pos)
{
uint8_t i;
uint32_t tmp;
if (shellContextHandle->hist_buf[0][0] == '\0')
{
shellContextHandle->hist_current = 0;
return;
}
#if 0 /*hist_pos is passed from hist_current. And hist_current is only changed in case 'A'/'B',as hist_count is 3 \
most, it can't be more than 3 */
if (hist_pos >= SHELL_HISTORY_COUNT)
{
hist_pos = SHELL_HISTORY_COUNT - 1U;
}
#endif
tmp = strlen(shellContextHandle->line);
/* Clear current if have */
if (tmp > 0U)
{
(void)memset(shellContextHandle->line, '\0', tmp);
for (i = 0; i < tmp; i++)
{
(void)SHELL_Write(shellContextHandle, "\b \b", 3);
}
}
shellContextHandle->l_pos = (uint8_t)strlen(shellContextHandle->hist_buf[hist_pos]);
shellContextHandle->c_pos = shellContextHandle->l_pos;
(void)memcpy(shellContextHandle->line, shellContextHandle->hist_buf[hist_pos], shellContextHandle->l_pos);
(void)SHELL_Write(shellContextHandle, shellContextHandle->hist_buf[hist_pos],
strlen(shellContextHandle->hist_buf[hist_pos]));
}
static void SHELL_AutoComplete(shell_context_handle_t *shellContextHandle)
{
int32_t minLen;
list_element_handle_t p;
shell_command_t *tmpCommand = NULL;
const char *namePtr;
const char *cmdName;
minLen = SHELL_BUFFER_SIZE;
namePtr = NULL;
/* Empty tab, list all commands */
if (shellContextHandle->line[0] == '\0')
{
(void)SHELL_HelpCommand(shellContextHandle, 0, NULL);
return;
}
SHELL_Write(shellContextHandle, "\r\n", 2);
/* Do auto complete */
p = LIST_GetHead(&shellContextHandle->commandContextListHead);
while (p != NULL)
{
tmpCommand = SHEEL_COMMAND_POINTER(p);
cmdName = tmpCommand->pcCommand;
if (SHELL_StringCompare(shellContextHandle->line, cmdName, (int32_t)strlen(shellContextHandle->line)) == 0)
{
/* Show possible matches */
SHELL_Printf(shellContextHandle, "%s\r\n", (char *)cmdName);
if (minLen > strlen(cmdName))
{
namePtr = cmdName;
minLen = (int32_t)strlen(namePtr);
}
}
p = LIST_GetNext(p);
}
/* Auto complete string */
if (namePtr != NULL)
{
(void)memcpy(shellContextHandle->line, namePtr, (uint32_t)minLen);
}
(void)SHELL_Write(shellContextHandle, shellContextHandle->prompt, strlen(shellContextHandle->prompt));
(void)SHELL_Write(shellContextHandle, shellContextHandle->line, strlen(shellContextHandle->line));
return;
}
static int32_t SHELL_StringCompare(const char *str1, const char *str2, int32_t count)
{
while ((bool)(count--))
{
if (*str1++ != *str2++)
{
return (int32_t) * (unsigned char *)(str1 - 1) - *(unsigned char *)(str2 - 1);
}
}
return 0;
}
static int32_t SHELL_ParseLine(const char *cmd, uint32_t len, char *argv[])
{
uint32_t argc;
char *p;
uint32_t position;
/* Init params */
(void)memset(s_paramBuffer, '\0', len + 1U);
(void)memcpy(s_paramBuffer, cmd, len);
p = s_paramBuffer;
position = 0;
argc = 0;
while (position < len)
{
/* Skip all blanks */
while ((position < len) && ((char)(*p) == ' '))
{
*p = '\0';
p++;
position++;
}
if (position >= len)
{
break;
}
/* Process begin of a string */
if (*p == '"')
{
p++;
position++;
argv[argc] = p;
argc++;
/* Skip this string */
while ((*p != '"') && (position < len))
{
p++;
position++;
}
/* Skip '"' */
*p = '\0';
p++;
position++;
}
else /* Normal char */
{
argv[argc] = p;
argc++;
while (((char)*p != ' ') && (position < len))
{
p++;
position++;
}
}
}
return (int32_t)argc;
}
static shell_status_t SHELL_GetChar(shell_context_handle_t *shellContextHandle, uint8_t *ch)
{
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))
uint32_t length = 0;
SerialManager_TryRead(shellContextHandle->serialReadHandle, ch, 1, &length);
if (length > 0)
{
return kStatus_SHELL_Success;
}
else
{
return kStatus_SHELL_Error;
}
#else
return (shell_status_t)SerialManager_ReadBlocking(shellContextHandle->serialReadHandle, ch, 1);
#endif
}
shell_status_t SHELL_Init(shell_handle_t shellHandle, serial_handle_t serialHandle, char *prompt)
{
shell_context_handle_t *shellContextHandle;
serial_manager_status_t status = kStatus_SerialManager_Error;
(void)status;
assert(shellHandle);
assert(serialHandle);
assert(prompt);
if (SHELL_HANDLE_SIZE < sizeof(shell_context_handle_t))
{
return kStatus_SHELL_Error;
}
shellContextHandle = (shell_context_handle_t *)shellHandle;
/* memory set for shellHandle */
(void)memset(shellHandle, 0, SHELL_HANDLE_SIZE);
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))
#if defined(OSA_USED)
#if (defined(SHELL_USE_COMMON_TASK) && (SHELL_USE_COMMON_TASK > 0U))
COMMON_TASK_init();
#else
if (KOSA_StatusSuccess != OSA_EventCreate((osa_event_handle_t)shellContextHandle->event, true))
{
return kStatus_SHELL_Error;
}
if (KOSA_StatusSuccess !=
OSA_TaskCreate((osa_task_handle_t)shellContextHandle->taskId, OSA_TASK(SHELL_Task), shellContextHandle))
{
return kStatus_SHELL_Error;
}
#endif
#endif
#endif
shellContextHandle->prompt = prompt;
shellContextHandle->serialHandle = serialHandle;
shellContextHandle->serialWriteHandle = (serial_write_handle_t)&shellContextHandle->serialWriteHandleBuffer[0];
status = SerialManager_OpenWriteHandle(shellContextHandle->serialHandle, shellContextHandle->serialWriteHandle);
assert(kStatus_SerialManager_Success == status);
shellContextHandle->serialReadHandle = (serial_read_handle_t)&shellContextHandle->serialReadHandleBuffer[0];
status = SerialManager_OpenReadHandle(shellContextHandle->serialHandle, shellContextHandle->serialReadHandle);
assert(kStatus_SerialManager_Success == status);
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))
SerialManager_InstallRxCallback(shellContextHandle->serialReadHandle, SHELL_SerialManagerRxCallback,
shellContextHandle);
#endif
(void)SHELL_RegisterCommand(shellContextHandle, SHELL_COMMAND(help));
(void)SHELL_RegisterCommand(shellContextHandle, SHELL_COMMAND(exit));
(void)SHELL_Write(shellContextHandle, "\r\nSHELL build: ", strlen("\r\nSHELL build: "));
(void)SHELL_Write(shellContextHandle, __DATE__, strlen(__DATE__));
(void)SHELL_Write(shellContextHandle, "\r\nCopyright 2018 NXP\r\n", strlen("\r\nCopyright 2018 NXP\r\n"));
(void)SHELL_Write(shellContextHandle, shellContextHandle->prompt, strlen(shellContextHandle->prompt));
return kStatus_SHELL_Success;
}
shell_status_t SHELL_RegisterCommand(shell_handle_t shellHandle, shell_command_t *command)
{
shell_context_handle_t *shellContextHandle = (shell_context_handle_t *)shellHandle;
assert(shellHandle);
assert(command);
/* memory set for shellHandle */
(void)memset(&command->link, 0, sizeof(command->link));
(void)LIST_AddTail(&shellContextHandle->commandContextListHead, &command->link);
return kStatus_SHELL_Success;
}
shell_status_t SHELL_UnregisterCommand(shell_command_t *command)
{
assert(command);
(void)LIST_RemoveElement(&command->link);
/* memory set for shellHandle */
(void)memset(&command->link, 0, sizeof(command->link));
return kStatus_SHELL_Success;
}
shell_status_t SHELL_Write(shell_handle_t shellHandle, char *buffer, uint32_t length)
{
shell_context_handle_t *shellContextHandle;
uint32_t primask;
shell_status_t status = kStatus_SHELL_Error;
assert(shellHandle);
assert(buffer);
if (!(bool)length)
{
return kStatus_SHELL_Success;
}
shellContextHandle = (shell_context_handle_t *)shellHandle;
primask = DisableGlobalIRQ();
if ((bool)shellContextHandle->printBusy)
{
EnableGlobalIRQ(primask);
return kStatus_SHELL_Error;
}
shellContextHandle->printBusy = 1U;
EnableGlobalIRQ(primask);
status =
(shell_status_t)SerialManager_WriteBlocking(shellContextHandle->serialWriteHandle, (uint8_t *)buffer, length);
shellContextHandle->printBusy = 0U;
return status;
}
int SHELL_Printf(shell_handle_t shellHandle, const char *formatString, ...)
{
shell_context_handle_t *shellContextHandle;
uint32_t length;
uint32_t primask;
va_list ap;
assert(shellHandle);
assert(formatString);
shellContextHandle = (shell_context_handle_t *)shellHandle;
primask = DisableGlobalIRQ();
if ((bool)shellContextHandle->printBusy)
{
EnableGlobalIRQ(primask);
return -1;
}
shellContextHandle->printBusy = 1U;
EnableGlobalIRQ(primask);
va_start(ap, formatString);
shellContextHandle->printLength = 0U;
length = (uint32_t)SHELL_Sprintf(shellHandle, formatString, ap);
(void)SerialManager_WriteBlocking(shellContextHandle->serialWriteHandle, (uint8_t *)shellContextHandle->printBuffer,
length);
va_end(ap);
shellContextHandle->printBusy = 0U;
return (int32_t)shellContextHandle->printLength;
}
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