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 /* SPDX-License-Identifier: BSD-2-Clause */
 
 /**
  * @file
  *
  * @ingroup test_bdbuf
  *
  * @brief Bdbuf test for block size change event.
  */
 
 /*
  * Copyright (C) 2009, 2018 embedded brains GmbH & Co. KG
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
 #include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <unistd.h>
 
 #include "tmacros.h"
 
 #include <rtems.h>
 #include <rtems/ramdisk.h>
 #include <rtems/bdbuf.h>
 
 const char rtems_test_name[] = "BLOCK 7";
 
 #define ASSERT_SC(sc) rtems_test_assert((sc) == RTEMS_SUCCESSFUL)
 
 #define PRIORITY_INIT 1
 
 #define PRIORITY_HIGH 2
 
 #define PRIORITY_MID 3
 
 #define PRIORITY_LOW 4
 
 #define PRIORITY_SWAPOUT 5
 
 #define PRIORITY_IDLE 6
 
 #define BLOCK_SIZE_A 1
 
 #define BLOCK_SIZE_B 2
 
 #define BLOCK_COUNT 2
 
 static rtems_disk_device *dd;
 
 static rtems_id task_id_low;
 
 static rtems_id task_id_mid;
 
 static rtems_id task_id_high;
 
 static void change_block_size(void)
 {
   int rv = 0;
   int fd = open("/dev/rda", O_RDWR);
 
   rtems_test_assert(fd >= 0);
 
   rv = rtems_disk_fd_set_block_size(fd, BLOCK_SIZE_B);
   rtems_test_assert(rv == 0);
 
   rv = close(fd);
   rtems_test_assert(rv == 0);
 }
 
 static void task_low(rtems_task_argument arg)
 {
   rtems_status_code sc = RTEMS_SUCCESSFUL;
   rtems_bdbuf_buffer *bd = NULL;
 
   printf("L: try access: 0\n");
 
   sc = rtems_bdbuf_get(dd, 0, &bd);
   ASSERT_SC(sc);
 
   printf("L: access: 0\n");
 
   rtems_test_assert(bd->group->bds_per_group == 2);
 
   printf("L: release: 0\n");
 
   sc = rtems_bdbuf_release(bd);
   ASSERT_SC(sc);
 
   printf("L: release done: 0\n");
 
   TEST_END();
 
   exit(0);
 }
 
 static void task_mid(rtems_task_argument arg)
 {
   rtems_status_code sc = RTEMS_SUCCESSFUL;
   rtems_bdbuf_buffer *bd = NULL;
 
   printf("M: try access: 0\n");
 
   sc = rtems_bdbuf_get(dd, 0, &bd);
   ASSERT_SC(sc);
 
   printf("M: access: 0\n");
 
   rtems_test_assert(bd->group->bds_per_group == 1);
 
   printf("M: release: 0\n");
 
   sc = rtems_bdbuf_release(bd);
   ASSERT_SC(sc);
 
   printf("M: release done: 0\n");
 
   rtems_task_exit();
 }
 
 static void task_high(rtems_task_argument arg)
 {
   rtems_status_code sc = RTEMS_SUCCESSFUL;
   rtems_bdbuf_buffer *bd = NULL;
 
   change_block_size();
 
   printf("H: try access: 0\n");
 
   sc = rtems_bdbuf_get(dd, 0, &bd);
   ASSERT_SC(sc);
 
   printf("H: access: 0\n");
 
   rtems_test_assert(bd->group->bds_per_group == 1);
 
   printf("H: release: 0\n");
 
   sc = rtems_bdbuf_release(bd);
   ASSERT_SC(sc);
 
   printf("H: release done: 0\n");
 
   rtems_task_exit();
 }
 
 static void do_ramdisk_register(
   uint32_t media_block_size,
   rtems_blkdev_bnum media_block_count,
   const char *disk,
   rtems_disk_device **dd
 )
 {
   rtems_status_code sc;
   int fd;
   int rv;
 
   sc = ramdisk_register(media_block_size, media_block_count, false, disk);
   ASSERT_SC(sc);
 
   fd = open(disk, O_RDWR);
   rtems_test_assert(fd >= 0);
 
   rv = rtems_disk_fd_get_disk_device(fd, dd);
   rtems_test_assert(rv == 0);
 
   rv = close(fd);
   rtems_test_assert(rv == 0);
 }
 
 static rtems_task Init(rtems_task_argument argument)
 {
   rtems_status_code sc = RTEMS_SUCCESSFUL;
   rtems_task_priority cur_prio = 0;
   rtems_bdbuf_buffer *bd = NULL;
 
   TEST_BEGIN();
 
   do_ramdisk_register(BLOCK_SIZE_A, BLOCK_COUNT, "/dev/rda", &dd);
 
   sc = rtems_task_create(
     rtems_build_name(' ', 'L', 'O', 'W'),
     PRIORITY_LOW,
     0,
     RTEMS_DEFAULT_MODES,
     RTEMS_DEFAULT_ATTRIBUTES,
     &task_id_low
   );
   ASSERT_SC(sc);
 
   sc = rtems_task_start(task_id_low, task_low, 0);
   ASSERT_SC(sc);
 
   sc = rtems_task_create(
     rtems_build_name(' ', 'M', 'I', 'D'),
     PRIORITY_MID,
     0,
     RTEMS_DEFAULT_MODES,
     RTEMS_DEFAULT_ATTRIBUTES,
     &task_id_mid
   );
   ASSERT_SC(sc);
 
   sc = rtems_task_start(task_id_mid, task_mid, 0);
   ASSERT_SC(sc);
 
   sc = rtems_task_create(
     rtems_build_name('H', 'I', 'G', 'H'),
     PRIORITY_HIGH,
     0,
     RTEMS_DEFAULT_MODES,
     RTEMS_DEFAULT_ATTRIBUTES,
     &task_id_high
   );
   ASSERT_SC(sc);
 
   sc = rtems_task_start(task_id_high, task_high, 0);
   ASSERT_SC(sc);
 
   sc = rtems_task_suspend(task_id_mid);
   ASSERT_SC(sc);
 
   sc = rtems_task_suspend(task_id_high);
   ASSERT_SC(sc);
 
   sc = rtems_bdbuf_get(dd, 1, &bd);
   ASSERT_SC(sc);
 
   sc = rtems_bdbuf_release(bd);
   ASSERT_SC(sc);
 
   printf("I: try access: 0\n");
 
   sc = rtems_bdbuf_get(dd, 0, &bd);
   ASSERT_SC(sc);
 
   printf("I: access: 0\n");
 
   sc = rtems_task_set_priority(RTEMS_SELF, PRIORITY_IDLE, &cur_prio);
   ASSERT_SC(sc);
 
   sc = rtems_task_resume(task_id_high);
   ASSERT_SC(sc);
 
   sc = rtems_task_resume(task_id_mid);
   ASSERT_SC(sc);
 
   sc = rtems_task_set_priority(RTEMS_SELF, PRIORITY_INIT, &cur_prio);
   ASSERT_SC(sc);
 
   printf("I: release: 0\n");
 
   sc = rtems_bdbuf_release(bd);
   ASSERT_SC(sc);
 
   printf("I: release done: 0\n");
 
   rtems_task_exit();
 }
 
 #define CONFIGURE_INIT
 
 #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
 #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
 #define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK
 
 #define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 4
 
 #define CONFIGURE_MAXIMUM_TASKS 4
 
 #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
 
 #define CONFIGURE_RTEMS_INIT_TASKS_TABLE
 
 #define CONFIGURE_INIT_TASK_PRIORITY PRIORITY_INIT
 #define CONFIGURE_INIT_TASK_ATTRIBUTES RTEMS_DEFAULT_ATTRIBUTES
 #define CONFIGURE_INIT_TASK_INITIAL_MODES RTEMS_DEFAULT_MODES
 
 #define CONFIGURE_SWAPOUT_TASK_PRIORITY PRIORITY_SWAPOUT
 
 #define CONFIGURE_BDBUF_BUFFER_MIN_SIZE BLOCK_SIZE_A
 #define CONFIGURE_BDBUF_BUFFER_MAX_SIZE BLOCK_SIZE_B
 #define CONFIGURE_BDBUF_CACHE_MEMORY_SIZE (BLOCK_SIZE_A * BLOCK_COUNT)
 
 #include <rtems/confdefs.h>

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