mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-10-01 01:26:06 -04:00
306 lines
8.9 KiB
C++
306 lines
8.9 KiB
C++
/*
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ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @file shell.c
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* @brief Simple CLI shell code.
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*
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* @addtogroup SHELL
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* @{
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*/
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#include <string.h>
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#include <cstring>
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#include <ctype.h>
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#include "ch.h"
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#include "hal.h"
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#include "shell.hpp"
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#include "chprintf.h"
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#include "portapack.hpp"
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/**
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* @brief Shell termination event source.
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*/
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EventSource shell_terminated;
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static char* _strtok(char* str, const char* delim, char** saveptr) {
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char* token;
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if (str)
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*saveptr = str;
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token = *saveptr;
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if (!token)
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return NULL;
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token += strspn(token, delim);
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*saveptr = strpbrk(token, delim);
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if (*saveptr)
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*(*saveptr)++ = '\0';
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return *token ? token : NULL;
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}
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static void usage(BaseSequentialStream* chp, char* p) {
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chprintf(chp, "Usage: %s\r\n", p);
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}
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static void list_commands(BaseSequentialStream* chp, const ShellCommand* scp) {
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while (scp->sc_name != NULL) {
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chprintf(chp, "%s ", scp->sc_name);
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scp++;
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}
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}
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static void cmd_info(BaseSequentialStream* chp, int argc, char* argv[]) {
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(void)argv;
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if (argc > 0) {
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usage(chp, const_cast<char*>("info"));
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return;
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}
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chprintf(chp, "Kernel: %s\r\n", CH_KERNEL_VERSION);
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#ifdef CH_COMPILER_NAME
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chprintf(chp, "Compiler: %s\r\n", CH_COMPILER_NAME);
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#endif
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chprintf(chp, "Architecture: %s\r\n", CH_ARCHITECTURE_NAME);
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#ifdef CH_CORE_VARIANT_NAME
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chprintf(chp, "Core Variant: %s\r\n", CH_CORE_VARIANT_NAME);
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#endif
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#ifdef CH_PORT_INFO
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chprintf(chp, "Port Info: %s\r\n", CH_PORT_INFO);
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#endif
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#ifdef PLATFORM_NAME
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chprintf(chp, "Platform: %s\r\n", PLATFORM_NAME);
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#endif
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#ifdef BOARD_NAME
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chprintf(chp, "Board: %s\r\n", BOARD_NAME);
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#endif
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#ifdef VERSION_STRING
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chprintf(chp, "Mayhem Version: %s\r\n", VERSION_STRING);
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#endif
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chprintf(chp, "HackRF Board Rev: %s\r\n", hackrf_r9 ? "R9" : "R1-R8");
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chprintf(chp, "Reference Source: %s\r\n", portapack::clock_manager.get_source().c_str());
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chprintf(chp, "Reference Freq: %s\r\n", portapack::clock_manager.get_freq().c_str());
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#ifdef __DATE__
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#ifdef __TIME__
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chprintf(chp, "Build time: %s%s%s\r\n", __DATE__, " - ", __TIME__);
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#endif
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#endif
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}
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static void cmd_systime(BaseSequentialStream* chp, int argc, char* argv[]) {
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(void)argv;
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if (argc > 0) {
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usage(chp, const_cast<char*>("systime"));
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return;
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}
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chprintf(chp, "%lu\r\n", (unsigned long)chTimeNow());
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}
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/**
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* @brief Array of the default commands.
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*/
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static ShellCommand local_commands[] = {
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{"info", cmd_info},
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{"systime", cmd_systime},
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{NULL, NULL}};
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static bool_t cmdexec(const ShellCommand* scp, BaseSequentialStream* chp, char* name, int argc, char* argv[]) {
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while (scp->sc_name != NULL) {
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if (strcmp(scp->sc_name, name) == 0) {
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scp->sc_function(chp, argc, argv);
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return FALSE;
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}
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scp++;
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}
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return TRUE;
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}
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/**
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* @brief Shell thread function.
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*
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* @param[in] p pointer to a @p BaseSequentialStream object
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* @return Termination reason.
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* @retval RDY_OK terminated by command.
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* @retval RDY_RESET terminated by reset condition on the I/O channel.
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*
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* @notapi
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*/
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static msg_t shell_thread(void* p) {
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int n;
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BaseSequentialStream* chp = ((ShellConfig*)p)->sc_channel;
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const ShellCommand* scp = ((ShellConfig*)p)->sc_commands;
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char *lp, *cmd, *tokp, line[SHELL_MAX_LINE_LENGTH];
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char* args[SHELL_MAX_ARGUMENTS + 1];
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chRegSetThreadName("shell");
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chprintf(chp, "\r\nChibiOS/RT Shell\r\n");
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while (TRUE) {
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chprintf(chp, "ch> ");
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if (shellGetLine(chp, line, sizeof(line))) {
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chprintf(chp, "\r\nlogout");
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break;
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}
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lp = _strtok(line, " \t", &tokp);
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cmd = lp;
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n = 0;
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while ((lp = _strtok(NULL, " \t", &tokp)) != NULL) {
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if (n >= SHELL_MAX_ARGUMENTS) {
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chprintf(chp, "too many arguments\r\n");
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cmd = NULL;
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break;
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}
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args[n++] = lp;
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}
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args[n] = NULL;
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if (cmd != NULL) {
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if (strcmp(cmd, "exit") == 0) {
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if (n > 0) {
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usage(chp, const_cast<char*>("exit"));
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continue;
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}
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break;
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} else if (strcmp(cmd, "help") == 0) {
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if (n > 0) {
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usage(chp, const_cast<char*>("help"));
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continue;
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}
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chprintf(chp, "Commands: help exit ");
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list_commands(chp, local_commands);
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if (scp != NULL)
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list_commands(chp, scp);
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chprintf(chp, "\r\n");
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} else if (cmdexec(local_commands, chp, cmd, n, args) &&
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((scp == NULL) || cmdexec(scp, chp, cmd, n, args))) {
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chprintf(chp, "%s", cmd);
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chprintf(chp, " ?\r\n");
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}
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}
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}
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shellExit(RDY_OK);
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/* Never executed, silencing a warning.*/
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return 0;
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}
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/**
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* @brief Shell manager initialization.
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*
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* @api
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*/
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void shellInit(void) {
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chEvtInit(&shell_terminated);
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}
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/**
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* @brief Terminates the shell.
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* @note Must be invoked from the command handlers.
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* @note Does not return.
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*
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* @param[in] msg shell exit code
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*
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* @api
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*/
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void shellExit(msg_t msg) {
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/* Atomically broadcasting the event source and terminating the thread,
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there is not a chSysUnlock() because the thread terminates upon return.*/
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chSysLock();
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chEvtBroadcastI(&shell_terminated);
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chThdExitS(msg);
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}
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/**
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* @brief Spawns a new shell.
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* @pre @p CH_USE_HEAP and @p CH_USE_DYNAMIC must be enabled.
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*
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* @param[in] scp pointer to a @p ShellConfig object
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* @param[in] size size of the shell working area to be allocated
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* @param[in] prio priority level for the new shell
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* @return A pointer to the shell thread.
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* @retval NULL thread creation failed because memory allocation.
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*
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* @api
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*/
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#if CH_USE_HEAP && CH_USE_DYNAMIC
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Thread* shellCreate(const ShellConfig* scp, size_t size, tprio_t prio) {
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return chThdCreateFromHeap(NULL, size, prio, shell_thread, (void*)scp);
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}
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#endif
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/**
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* @brief Create statically allocated shell thread.
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*
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* @param[in] scp pointer to a @p ShellConfig object
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* @param[in] wsp pointer to a working area dedicated to the shell thread stack
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* @param[in] size size of the shell working area
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* @param[in] prio priority level for the new shell
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* @return A pointer to the shell thread.
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*
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* @api
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*/
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Thread* shellCreateStatic(const ShellConfig* scp, void* wsp, size_t size, tprio_t prio) {
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return chThdCreateStatic(wsp, size, prio, shell_thread, (void*)scp);
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}
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/**
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* @brief Reads a whole line from the input channel.
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*
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* @param[in] chp pointer to a @p BaseSequentialStream object
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* @param[in] line pointer to the line buffer
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* @param[in] size buffer maximum length
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* @return The operation status.
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* @retval TRUE the channel was reset or CTRL-D pressed.
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* @retval FALSE operation successful.
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*
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* @api
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*/
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bool_t shellGetLine(BaseSequentialStream* chp, char* line, unsigned size) {
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char* p = line;
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while (TRUE) {
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char c;
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if (chSequentialStreamRead(chp, (uint8_t*)&c, 1) == 0)
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return TRUE;
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if (c == 4) {
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chprintf(chp, "^D");
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return TRUE;
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}
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if ((c == 8) || (c == 127)) {
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if (p != line) {
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chSequentialStreamPut(chp, c);
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chSequentialStreamPut(chp, 0x20);
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chSequentialStreamPut(chp, c);
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p--;
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}
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continue;
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}
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if (c == '\r') {
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chprintf(chp, "\r\n");
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*p = 0;
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return FALSE;
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}
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if (c < 0x20)
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continue;
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if (p < line + size - 1) {
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chSequentialStreamPut(chp, c);
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*p++ = (char)c;
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}
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}
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}
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/** @} */
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