/*
 * Copyright (c) 2019 Vijay Kumar Banerjee <vijaykumar9597@gmail.com>.
 * All rights reserved.
 *
 * 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 AUTHOR 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 AUTHOR 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.
 */

#include <assert.h>
#include <stdlib.h>
#include <sysexits.h>

#include <rtems.h>
#include <rtems/bsd/bsd.h>
#include <bsp/i2c.h>
#include <rtems/console.h>
#include <rtems/shell.h>

#define PRIO_SHELL		150
#define STACK_SIZE_SHELL	(64 * 1024)

#include <fbdev.h>

void
libbsdhelper_start_shell(rtems_task_priority prio)
{
	rtems_status_code sc = rtems_shell_init(
		"SHLL",
		STACK_SIZE_SHELL,
		prio,
		CONSOLE_DEVICE_NAME,
		false,
		true,
		NULL
	);
	assert(sc == RTEMS_SUCCESSFUL);
}

static void
Init(rtems_task_argument arg)
{
	rtems_status_code sc;
	int exit_code;
	(void)arg;
	static lv_color_t buf[LV_HOR_RES_MAX*10];
	static lv_disp_buf_t disp_buf;

	puts("\nRTEMS LVGL HELLO WORLD\n");
	sc = rtems_bsd_initialize();
	assert(sc == RTEMS_SUCCESSFUL);

	lv_init();

	fbdev_init();

	lv_disp_buf_init(&disp_buf, buf, NULL, LV_HOR_RES_MAX*10);

	lv_disp_drv_t disp_drv;
	lv_disp_drv_init(&disp_drv);
	disp_drv.buffer = &disp_buf;
	disp_drv.flush_cb = fbdev_flush;
	lv_disp_drv_register(&disp_drv);

	lv_obj_t * label = lv_label_create(lv_scr_act(), NULL);
	lv_label_set_text(label, "Hello world!");
	lv_obj_align(label, NULL, LV_ALIGN_CENTER, 0, 0);

	lv_tick_inc(5);
	lv_task_handler();

	/* Some time for USB device to be detected. */
	libbsdhelper_start_shell(PRIO_SHELL);


	exit(0);
}

/*
 * Configure LibBSD.
 */
#define RTEMS_BSD_CONFIG_BSP_CONFIG
#define RTEMS_BSD_CONFIG_TERMIOS_KQUEUE_AND_POLL
#define RTEMS_BSD_CONFIG_INIT

#include <machine/rtems-bsd-config.h>

/*
 * Configure RTEMS.
 */
#define CONFIGURE_MICROSECONDS_PER_TICK 1000

#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_STUB_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_ZERO_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK

#define CONFIGURE_FILESYSTEM_DOSFS
#define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 32

#define CONFIGURE_UNLIMITED_OBJECTS
#define CONFIGURE_UNIFIED_WORK_AREAS
#define CONFIGURE_MAXIMUM_USER_EXTENSIONS 1

#define CONFIGURE_INIT_TASK_STACK_SIZE (64*1024)
#define CONFIGURE_INIT_TASK_INITIAL_MODES RTEMS_DEFAULT_MODES
#define CONFIGURE_INIT_TASK_ATTRIBUTES RTEMS_FLOATING_POINT

#define CONFIGURE_BDBUF_BUFFER_MAX_SIZE (32 * 1024)
#define CONFIGURE_BDBUF_MAX_READ_AHEAD_BLOCKS 4
#define CONFIGURE_BDBUF_CACHE_MEMORY_SIZE (1 * 1024 * 1024)
#define CONFIGURE_BDBUF_READ_AHEAD_TASK_PRIORITY 97
#define CONFIGURE_SWAPOUT_TASK_PRIORITY 97

//#define CONFIGURE_STACK_CHECKER_ENABLED

#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT

#include <rtems/confdefs.h>

/*
 * Configure Shell.
 */
#include <rtems/netcmds-config.h>
#include <bsp/irq-info.h>
#define CONFIGURE_SHELL_COMMANDS_INIT

#define CONFIGURE_SHELL_USER_COMMANDS \
  &bsp_interrupt_shell_command, \
  &rtems_shell_ARP_Command, \
  &rtems_shell_I2C_Command

#define CONFIGURE_SHELL_COMMANDS_ALL

#include <rtems/shellconfig.h>