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nuttx/configs/stm3240g-eval/src/stm32_boot.c

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/************************************************************************************
* configs/stm3240g-eval/src/stm32_boot.c
*
* Copyright (C) 2011-2013, 2015 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <nuttx/board.h>
#include "stm3240g-eval.h"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/* Configuration ********************************************************************/
/* Should we initialize the NX server? This is done for NxWidgets (CONFIG_NXWIDGETS=y)
* if nx_start() is available (CONFIG_NX_NXSTART=y) and if the NxWidget::CNxServer
* class expects the RTOS to do the NX initialization (CONFIG_NXWIDGET_SERVERINIT=n).
* This combination of settings is normally only used in the kernel build mode
* (CONFIG_BUILD_PROTECTED) when NxWidgets is unable to initialize NX from user-space.
*/
#undef HAVE_NXSTART
#if !defined(CONFIG_NX_MULTIUSER)
# undef CONFIG_NX_START
#endif
#if defined(CONFIG_NXWIDGETS)
# if defined(CONFIG_NX_NXSTART)
# if !defined(CONFIG_NXWIDGET_SERVERINIT)
# define HAVE_NXSTART
# include <nuttx/nx/nx.h>
# endif
# else
# if !defined(CONFIG_NXWIDGET_SERVERINIT) && defined(CONFIG_BUILD_PROTECTED)
# error CONFIG_NX_NXSTART=y is needed
# endif
# endif
#endif
/* Should we initialize the touchscreen for the NxWM (CONFIG_NXWM=y)? This
* is done if we have a touchscreen (CONFIG_INPUT_STMPE811=y), NxWM uses the
* touchscreen (CONFIG_NXWM_TOUCHSCREEN=y), and if we were asked to
* initialize the touchscreen for NxWM (NXWM_TOUCHSCREEN_DEVINIT=n). This
* combination of settings is normally only used in the kernel build mode
* (CONFIG_BUILD_PROTECTED) when NxWidgets is unable to initialize NX from
* user-space.
*/
#undef HAVE_TCINIT
#if defined(CONFIG_NXWM_TOUCHSCREEN)
# if !defined(CONFIG_NXWM_TOUCHSCREEN_DEVNO)
# error CONFIG_NXWM_TOUCHSCREEN_DEVNO is not defined
# elif defined(CONFIG_INPUT_STMPE811)
# if !defined(CONFIG_NXWM_TOUCHSCREEN_DEVINIT)
# define HAVE_TCINIT
# include <nuttx/input/touchscreen.h>
# endif
# else
# if !defined(CONFIG_NXWM_TOUCHSCREEN_DEVINIT) && defined(CONFIG_BUILD_PROTECTED)
# error CONFIG_INPUT_STMPE811=y is needed
# endif
# endif
#endif
/* Check if we will need to support the initialization kernel thread */
#undef HAVE_INITTHREAD
#ifdef CONFIG_BOARD_INITIALIZE
# if defined(CONFIG_NSH_LIBRARY) && !defined(CONFIG_NSH_ARCHINIT)
# define HAVE_INITTHREAD 1
# elif defined(HAVE_NXSTART)
# define HAVE_INITTHREAD 1
# elif defined(HAVE_TCINIT)
# define HAVE_INITTHREAD 1
# endif
#endif
#ifdef HAVE_INITTHREAD
# include <stdlib.h>
# include <assert.h>
# include <nuttx/kthread.h>
# ifndef CONFIG_STM3240G_BOARDINIT_PRIO
# define CONFIG_STM3240G_BOARDINIT_PRIO 196
# endif
# ifndef CONFIG_STM3240G_BOARDINIT_STACK
# define CONFIG_STM3240G_BOARDINIT_STACK 2048
# endif
#endif
/************************************************************************************
* Private Functions
************************************************************************************/
/************************************************************************************
* Name: board_initthread
*
* Description:
* Board initialization kernel thread. This thread exists to support
* initialization when CONFIG_BOARD_INITIALIZE is defined. It is started by
* board_initialize() which runs on the IDLE thread.
*
* This function thread exists because some initialization steps may require
* waiting for events. Such waiting is not possible on the IDLE thread.
*
* Input Parameters:
* Standard task start-up parameters (none of which are used)
*
* Returned Value:
* Always returns EXIT_SUCCESS.
*
************************************************************************************/
#ifdef HAVE_INITTHREAD
static int board_initthread(int argc, char *argv[])
{
int ret;
/* Perform NSH initialization here instead of from the NSH. This
* alternative NSH initialization is necessary when NSH is ran in user-space
* but the initialization function must run in kernel space.
*/
#if defined(CONFIG_NSH_LIBRARY) && !defined(CONFIG_NSH_ARCHINIT)
ret = board_app_initialize();
if (ret < 0)
{
gdbg("ERROR: board_app_initialize failed: %d\n", ret);
}
#endif
/* Initialize the NX server */
#ifdef HAVE_NXSTART
ret = nx_start();
if (ret < 0)
{
gdbg("ERROR: nx_start failed: %d\n", ret);
}
#endif
/* Initialize the touchscreen */
#ifdef HAVE_TCINIT
ret = board_tsc_setup(CONFIG_NXWM_TOUCHSCREEN_DEVNO);
if (ret < 0)
{
gdbg("ERROR: board_tsc_setup failed: %d\n", ret);
}
#endif
return EXIT_SUCCESS;
}
#endif
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: stm32_boardinitialize
*
* Description:
* All STM32 architectures must provide the following entry point. This entry point
* is called early in the initialization -- after all memory has been configured
* and mapped but before any devices have been initialized.
*
************************************************************************************/
void stm32_boardinitialize(void)
{
/* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function
* stm32_spiinitialize() has been brought into the link.
*/
#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2) || defined(CONFIG_STM32_SPI3)
if (stm32_spiinitialize)
{
stm32_spiinitialize();
}
#endif
/* If the FSMC is enabled, then enable SRAM access */
#ifdef CONFIG_STM32_FSMC
stm32_selectsram();
#endif
/* Initialize USB if the 1) OTG FS controller is in the configuration and 2)
* disabled, and 3) the weak function stm32_usbinitialize() has been brought
* the weak function stm32_usbinitialize() has been brought into the build.
* Presumeably either CONFIG_USBDEV or CONFIG_USBHOST is also selected.
*/
#ifdef CONFIG_STM32_OTGFS
if (stm32_usbinitialize)
{
stm32_usbinitialize();
}
#endif
/* Configure on-board LEDs if LED support has been selected. */
#ifdef CONFIG_ARCH_LEDS
stm32_autoled_initialize();
#endif
}
/****************************************************************************
* Name: board_initialize
*
* Description:
* If CONFIG_BOARD_INITIALIZE is selected, then an additional
* initialization call will be performed in the boot-up sequence to a
* function called board_initialize(). board_initialize() will be
* called immediately after up_initialize() is called and just before the
* initial application is started. This additional initialization phase
* may be used, for example, to initialize board-specific device drivers.
*
****************************************************************************/
#ifdef CONFIG_BOARD_INITIALIZE
void board_initialize(void)
{
#ifdef HAVE_INITTHREAD
pid_t server;
/* Start the board initialization kernel thread */
server = kernel_thread("Board Init", CONFIG_STM3240G_BOARDINIT_PRIO,
CONFIG_STM3240G_BOARDINIT_STACK, board_initthread,
NULL);
ASSERT(server > 0);
#endif
}
#endif
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