nuttx/configs/nucleo-f401re/src/stm32_init.c

203 lines
5.9 KiB
C

/****************************************************************************
* configs/nucleo-f401re/src/stm32_init.c
*
* Copyright (C) 2014 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 <stdbool.h>
#include <stdio.h>
#include <math.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/arch.h>
#include <nuttx/spi/spi.h>
#include <nuttx/i2c.h>
#include <nuttx/sdio.h>
#include <nuttx/mmcsd.h>
#include <nuttx/analog/adc.h>
#include <nuttx/gran.h>
#include <stm32.h>
#include <stm32_uart.h>
#include <arch/board/board.h>
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
#ifdef CONFIG_FAT_DMAMEMORY
# if !defined(CONFIG_GRAN) || !defined(CONFIG_FAT_DMAMEMORY)
# error microSD DMA support requires CONFIG_GRAN
# endif
#endif
/* Debug ********************************************************************/
#ifdef CONFIG_CPP_HAVE_VARARGS
# ifdef CONFIG_DEBUG
# define message(...) lowsyslog(__VA_ARGS__)
# else
# define message(...) printf(__VA_ARGS__)
# endif
#else
# ifdef CONFIG_DEBUG
# define message lowsyslog
# else
# define message printf
# endif
#endif
/****************************************************************************
* Private Data
****************************************************************************/
#ifdef CONFIG_FAT_DMAMEMORY
static GRAN_HANDLE dma_allocator;
/* The DMA heap size constrains the total number of things that can be
* ready to do DMA at a time.
*
* For example, FAT DMA depends on one sector-sized buffer per file system plus
* one sector-sized buffer per file.
*
* We use a fundamental alignment / granule size of 64B; this is sufficient
* to guarantee alignment for the largest STM32 DMA burst (16 beats x 32bits).
*/
static uint8_t g_dma_heap[8192] __attribute__((aligned(64)));
#endif
static struct spi_dev_s *spi1;
static struct sdio_dev_s *sdio;
/****************************************************************************
* Private Functions
****************************************************************************/
#ifdef CONFIG_FAT_DMAMEMORY
static void dma_alloc_init(void)
{
dma_allocator =
gran_initialize(g_dma_heap,
sizeof(g_dma_heap),
7, /* 128B granule - must be > alignment (XXX bug?) */
6); /* 64B alignment */
if (dma_allocator == NULL)
{
message("[boot] DMA allocator setup FAILED");
}
}
#else
# define dma_alloc_init()
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
void up_netinitialize(void)
{
}
/****************************************************************************
* Name: nsh_archinitialize
*
* Description:
* Perform architecture specific initialization
*
****************************************************************************/
int nsh_archinitialize(void)
{
#ifdef CONFIG_MMCSD
int ret;
#endif
/* Configure CPU load estimation */
#ifdef CONFIG_SCHED_INSTRUMENTATION
cpuload_initialize_once();
#endif
/* Configure SPI-based devices */
spi1 = up_spiinitialize(1);
if (!spi1)
{
message("[boot] FAILED to initialize SPI port 1\n");
board_led_on(LED_AMBER);
return -ENODEV;
}
#ifdef CONFIG_MMCSD
/* First, get an instance of the SDIO interface */
sdio = sdio_initialize(CONFIG_NSH_MMCSDSLOTNO);
if (!sdio)
{
message("[boot] Failed to initialize SDIO slot %d\n",
CONFIG_NSH_MMCSDSLOTNO);
return -ENODEV;
}
/* Now bind the SDIO interface to the MMC/SD driver */
ret = mmcsd_slotinitialize(CONFIG_NSH_MMCSDMINOR, sdio);
if (ret != OK)
{
message("ERROR: Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
return ret;
}
/* Then let's guess and say that there is a card in the slot. There is no
* card detect GPIO.
*/
sdio_mediachange(sdio, true);
message("[boot] Initialized SDIO\n");
#endif
return OK;
}