Fix #1349, Break up pc-rtems to support generic configuration

Author: Jacob Hageman

src/bsp/pc-rtems/CMakeLists.txt

@@ -4,9 +4,41 @@
 #
 ######################################################################
 
+# Basic set of files
+set(OS_BSP_SRCLIST
+    src/bsp_console.c
+    src/bsp_start.c
+)
+
+# If not dynamic loading, include Init and config
+if (NOT RTEMS_DYNAMIC_LOAD)
+    list(APPEND OS_BSP_SRCLIST
+        src/bsp_init.c
+        src/bsp_setupfs.c # TODO move to only if enabled
+    )
+
+    # TODO could add the two flags for FS support vs adding from include
+
+    # Link the RTEMS BSP with the "rtemscpu" system library
+    target_link_libraries(osal_public_api INTERFACE
+          rtemscpu
+    )
+endif ()
+
+if (RTEMS_NO_SHELL)
+    list(APPEND OS_BSP_SRCLIST
+        src/bsp_no_shell.c
+    )
+else ()
+    list(APPEND OS_BSP_SRCLIST
+        src/bsp_shell.c
+    )
+endif ()
+
+# TODO add the cmdline if not RTEMS_NO_CMDLINE
+
 add_library(osal_pc-rtems_impl OBJECT
-	src/bsp_start.c
-	src/bsp_console.c
+    ${OS_BSP_SRCLIST}
 )
 
 # This definition is needed for the gethostname call
@@ -16,9 +48,4 @@ target_compile_definitions(osal_public_api INTERFACE
    _BSD_SOURCE
 )
 
-# Link the RTEMS BSP with the "rtemscpu" system library
-target_link_libraries(osal_public_api INTERFACE
-      rtemscpu
-)
-
 set_property(TARGET osal_pc-rtems_impl PROPERTY OSAL_EXPECTED_OSTYPE "rtems")

src/bsp/pc-rtems/src/bsp_cmdline.c

@@ -0,0 +1,131 @@
+/************************************************************************
+ * NASA Docket No. GSC-18,719-1, and identified as “core Flight System: Bootes”
+ *
+ * Copyright (c) 2020 United States Government as represented by the
+ * Administrator of the National Aeronautics and Space Administration.
+ * All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License. You may obtain
+ * a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ************************************************************************/
+
+/*
+ * \file
+ *
+ *   OSAL BSP command line implementation
+ */
+
+/*
+**  Include Files
+*/
+/* TODO clean these */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <bsp.h>
+#include <rtems.h>
+#include <rtems/bdbuf.h>
+#include <rtems/blkdev.h>
+#include <rtems/diskdevs.h>
+#include <rtems/bdpart.h>
+#include <rtems/error.h>
+#include <rtems/ramdisk.h>
+#include <rtems/dosfs.h>
+#include <rtems/fsmount.h>
+
+/* TODO remove or refactor? Still needs global */
+#include "pcrtems_bsp_internal.h"
+
+void OS_BSP_CmdLine(void)
+{
+    const char *cmdlinestr;
+    const char *cmdp;
+    char *      cmdi, *cmdo;
+
+    cmdlinestr = bsp_cmdline();
+
+    /*
+     * Parse command line string (passed in from bootloader)
+     *
+     * Known arguments are handled here, and unknown args are
+     * saved for the UT application.
+     *
+     * Batch mode is intended for non-interactive execution.
+     *
+     * It does two things:
+     * - do not start the shell task
+     * - when tests are complete, shutdown the executive
+     *
+     * The BSP should be configured with these options to
+     * make this most useful:
+     *   USE_COM1_AS_CONSOLE=1
+     *   BSP_PRESS_KEY_FOR_RESET=0
+     *   BSP_RESET_BOARD_AT_EXIT=1
+     *
+     * This way all the test output will be sent to COM1
+     * and then immediately resets the CPU when done.
+     *
+     * When running under QEMU the "-no-reboot" flag is
+     * also useful to shutdown QEMU rather than resetting.
+     */
+    if (cmdlinestr != NULL)
+    {
+        printf(" Bootloader Command Line: %s\n", cmdlinestr);
+
+        cmdp = cmdlinestr;
+        cmdo = NULL;
+        cmdi = NULL;
+
+        while (1)
+        {
+            if (isgraph((int)*cmdp))
+            {
+                if (cmdo == NULL)
+                {
+                    cmdo = OS_BSP_PcRtemsGlobal.UserArgBuffer;
+                }
+                else
+                {
+                    ++cmdo;
+                }
+                if (cmdi == NULL)
+                {
+                    cmdi = cmdo;
+                }
+                *cmdo = *cmdp;
+            }
+            else if (cmdi != NULL)
+            {
+                ++cmdo;
+                *cmdo = 0;
+                if (strcmp(cmdi, "--batch-mode") == 0)
+                {
+                    OS_BSP_PcRtemsGlobal.BatchMode = true;
+                }
+                else if (OS_BSP_Global.ArgC < RTEMS_MAX_USER_OPTIONS)
+                {
+                    /* save other args for app */
+                    OS_BSP_Global.ArgV[OS_BSP_Global.ArgC] = cmdi;
+                    ++OS_BSP_Global.ArgC;
+                }
+                cmdi = NULL;
+            }
+
+            if (*cmdp == 0)
+            {
+                break;
+            }
+
+            ++cmdp;
+        }
+    }
+}

src/bsp/pc-rtems/src/bsp_console.c

@@ -17,9 +17,8 @@
  ************************************************************************/
 
 /*
- * File:  bsp_console.c
+ * \file
  *
- * Purpose:
  *   OSAL BSP debug console abstraction
  */
 

src/bsp/pc-rtems/src/bsp_init.c

@@ -0,0 +1,98 @@
+/************************************************************************
+ * NASA Docket No. GSC-18,719-1, and identified as “core Flight System: Bootes”
+ *
+ * Copyright (c) 2020 United States Government as represented by the
+ * Administrator of the National Aeronautics and Space Administration.
+ * All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License. You may obtain
+ * a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ************************************************************************/
+
+/*
+ * \file
+ *
+ *   RTEMS main entry point
+ *   Configures RTEMS and wraps OS_BSPMain for use in a stand alone executable
+ */
+
+/*
+**  Include Files
+*/
+#include "bsp_start.h"
+#include "bsp-impl.h"
+#include <rtems.h>
+
+/*
+ ** A simple entry point to start from the loader
+ */
+rtems_task Init(rtems_task_argument ignored)
+{
+    OS_BSPMain();
+}
+
+/* configuration information */
+
+/*
+** RTEMS OS Configuration definitions
+*/
+#define TASK_INTLEVEL 0
+#define CONFIGURE_INIT
+#define CONFIGURE_INIT_TASK_ATTRIBUTES \
+    (RTEMS_FLOATING_POINT | RTEMS_PREEMPT | RTEMS_NO_TIMESLICE | RTEMS_ASR | RTEMS_INTERRUPT_LEVEL(TASK_INTLEVEL))
+#define CONFIGURE_INIT_TASK_STACK_SIZE (20 * 1024)
+#define CONFIGURE_INIT_TASK_PRIORITY   10
+
+/*
+ * Note that these resources are shared with RTEMS itself (e.g. the init task, the shell)
+ * so they should be allocated slightly higher than the user limits in osconfig.h
+ *
+ * Many RTEMS services use tasks internally, including the idle task, BSWP, ATA driver,
+ * low level console I/O, the shell, TCP/IP network stack, and DHCP (if enabled).
+ * Many of these also use semaphores for synchronization.
+ *
+ * Budgeting for additional:
+ *   8 internal tasks
+ *   2 internal timers
+ *   4 internal queues
+ *   16 internal semaphores
+ *
+ */
+#define CONFIGURE_MAXIMUM_TASKS          (OS_MAX_TASKS + 8)
+#define CONFIGURE_MAXIMUM_TIMERS         (OS_MAX_TIMERS + 2)
+#define CONFIGURE_MAXIMUM_SEMAPHORES     (OS_MAX_BIN_SEMAPHORES + OS_MAX_COUNT_SEMAPHORES + OS_MAX_MUTEXES + 16)
+#define CONFIGURE_MAXIMUM_MESSAGE_QUEUES (OS_MAX_QUEUES + 4)
+#define CONFIGURE_MAXIMUM_DRIVERS        10
+#define CONFIGURE_MAXIMUM_POSIX_KEYS     4
+#ifdef OS_RTEMS_4_DEPRECATED
+#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS (OS_MAX_NUM_OPEN_FILES + 8)
+#else
+#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS (OS_MAX_NUM_OPEN_FILES + 8)
+#endif
+
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+#define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM
+#define CONFIGURE_FILESYSTEM_RFS
+#define CONFIGURE_FILESYSTEM_IMFS
+#define CONFIGURE_FILESYSTEM_DOSFS
+#define CONFIGURE_FILESYSTEM_DEVFS
+#define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK
+
+/* TODO figure out how to switch these if needed
+#define CONFIGURE_APPLICATION_NEEDS_IDE_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_ATA_DRIVER */
+
+#define CONFIGURE_EXECUTIVE_RAM_SIZE       (8 * 1024 * 1024)
+#define CONFIGURE_MICROSECONDS_PER_TICK    10000
+#define CONFIGURE_ATA_DRIVER_TASK_PRIORITY 9
+
+#include <rtems/confdefs.h>

src/bsp/pc-rtems/src/bsp_no_shell.c

@@ -0,0 +1,36 @@
+/************************************************************************
+ * NASA Docket No. GSC-18,719-1, and identified as “core Flight System: Bootes”
+ *
+ * Copyright (c) 2020 United States Government as represented by the
+ * Administrator of the National Aeronautics and Space Administration.
+ * All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License. You may obtain
+ * a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ************************************************************************/
+
+/*
+ * \file
+ *
+ *   OSAL BSP no shell implementation
+ */
+
+#include <stdio.h>
+
+/* TODO needs the global, but may want to split this up */
+#include "pcrtems_bsp_internal.h"
+
+/* TODO add bsp_shell.h */
+
+void OS_BSP_Shell(void)
+{
+    printf("RTEMS_NO_SHELL:TRUE, shell not implemented");
+    OS_BSP_PcRtemsGlobal.BatchMode = true;
+}