3 files changed, 384 insertions, 0 deletions
diff --git a/os/various/shell.c b/os/various/shell.c
new file mode 100644
index 000000000..8ba101d01
--- /dev/null
+++ b/os/various/shell.c
@@ -0,0 +1,284 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
+
+    This file is part of ChibiOS/RT.
+
+    ChibiOS/RT is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    ChibiOS/RT is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file shell.c
+ * @brief Simple CLI shell code.
+ * @addtogroup SHELL
+ * @{
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "ch.h"
+#include "shell.h"
+
+#if SHELL_USE_IPRINTF
+#define sprintf siprintf
+#endif
+
+/**
+ * @brief Shell termination event source.
+ */
+EventSource shell_terminated;
+
+/*
+ * MinGW does not seem to have this function...
+ */
+static char *strtok_r(char *str, const char *delim, char **saveptr) {
+  char *token;
+  if (str)
+    *saveptr = str;
+  token = *saveptr;
+
+  if (!token)
+    return NULL;
+
+  token += strspn(token, delim);
+  *saveptr = strpbrk(token, delim);
+  if (*saveptr)
+    *(*saveptr)++ = '\0';
+
+  return *token ? token : NULL;
+}
+
+static void usage(BaseChannel *chp, char *p) {
+
+  shellPrint(chp, "Usage: ");
+  shellPrintLine(chp, p);
+}
+
+static void list_commands(BaseChannel *chp, const ShellCommand *scp) {
+
+  while (scp->sc_name != NULL) {
+    shellPrint(chp, scp->sc_name);
+    shellPrint(chp, " ");
+    scp++;
+  }
+}
+
+static void cmd_info(BaseChannel *chp, int argc, char *argv[]) {
+
+  (void)argv;
+  if (argc > 0) {
+    usage(chp, "info");
+    return;
+  }
+
+  shellPrint(chp, "Kernel version ");
+  shellPrintLine(chp, CH_KERNEL_VERSION);
+  shellPrint(chp, "Architecture ");
+  shellPrintLine(chp, CH_ARCHITECTURE_NAME);
+#ifdef __GNUC__
+  shellPrint(chp, "GCC Version ");
+  shellPrintLine(chp, __VERSION__);
+#endif
+}
+
+static void cmd_systime(BaseChannel *chp, int argc, char *argv[]) {
+  char buf[12];
+
+  (void)argv;
+  if (argc > 0) {
+    usage(chp, "systime");
+    return;
+  }
+  sprintf(buf, "%lu", (unsigned long)chTimeNow());
+  shellPrintLine(chp, buf);
+}
+
+/**
+ * @brief Array of the default commands.
+ */
+static ShellCommand local_commands[] = {
+  {"info", cmd_info},
+  {"systime", cmd_systime},
+  {NULL, NULL}
+};
+
+static bool_t cmdexec(const ShellCommand *scp, BaseChannel *chp,
+                      char *name, int argc, char *argv[]) {
+
+  while (scp->sc_name != NULL) {
+    if (strcmpi(scp->sc_name, name) == 0) {
+      scp->sc_function(chp, argc, argv);
+      return FALSE;
+    }
+    scp++;
+  }
+  return TRUE;
+}
+
+/**
+ * @brief Shell thread function.
+ *
+ * @param[in] p pointer to an @p BaseChannel object
+ * @return Termination reason.
+ * @retval RDY_OK terminated by command.
+ * @retval RDY_RESET terminated by reset condition on the I/O channel.
+ */
+static msg_t shell_thread(void *p) {
+  int n;
+  msg_t msg = RDY_OK;
+  BaseChannel *chp = ((ShellConfig *)p)->sc_channel;
+  const ShellCommand *scp = ((ShellConfig *)p)->sc_commands;
+  char *lp, *cmd, *tokp, line[SHELL_MAX_LINE_LENGTH];
+  char *args[SHELL_MAX_ARGUMENTS + 1];
+
+  shellPrintLine(chp, "");
+  shellPrintLine(chp, "ChibiOS/RT Shell");
+  while (TRUE) {
+    shellPrint(chp, "ch> ");
+    if (shellGetLine(chp, line, sizeof(line))) {
+      shellPrint(chp, "\nlogout");
+      break;
+    }
+    lp = strtok_r(line, " \009", &tokp);
+    cmd = lp;
+    n = 0;
+    while ((lp = strtok_r(NULL, " \009", &tokp)