257 lines
7.2 KiB
C
257 lines
7.2 KiB
C
/****************************************************************************
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* boards/arm/stm32l4/stm32l4r9ai-disco/src/stm32_appinit.c
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*
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* Copyright (C) 2018 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <sys/mount.h>
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#include <stdio.h>
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#include <syslog.h>
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#include <errno.h>
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#include <debug.h>
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#include <string.h>
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#include <stdlib.h>
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#include <nuttx/arch.h>
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#include <nuttx/board.h>
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#include <stm32l4.h>
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#include <stm32l4_uart.h>
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#include <stm32l4_uid.h>
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#include <arch/board/board.h>
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#include <arch/board/boardctl.h>
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#include <nuttx/drivers/drivers.h>
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#include <nuttx/drivers/ramdisk.h>
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#include <nuttx/i2c/i2c_master.h>
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#include "stm32l4r9ai-disco.h"
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/* Conditional logic in stm32l4r9ai-disco.h will determine if certain features
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* are supported. Tests for these features need to be made after including
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* stm32l4r9ai-disco.
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*/
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#ifdef HAVE_RTC_DRIVER
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# include <nuttx/timers/rtc.h>
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# include "stm32l4_rtc.h"
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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#ifdef CONFIG_I2C
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# ifdef CONFIG_STM32L4_I2C1
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static struct i2c_master_s* g_i2c1;
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# endif
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# ifdef CONFIG_STM32L4_I2C3
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static struct i2c_master_s* g_i2c3;
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# endif
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: board_app_initialize
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*
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* Description:
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* Perform application specific initialization. This function is never
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* called directly from application code, but only indirectly via the
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* (non-standard) boardctl() interface using the command BOARDIOC_INIT.
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*
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* Input Parameters:
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* arg - The boardctl() argument is passed to the board_app_initialize()
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* implementation without modification. The argument has no
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* meaning to NuttX; the meaning of the argument is a contract
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* between the board-specific initialization logic and the
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* matching application logic. The value could be such things as a
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* mode enumeration value, a set of DIP switch switch settings, a
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* pointer to configuration data read from a file or serial FLASH,
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* or whatever you would like to do with it. Every implementation
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* should accept zero/NULL as a default configuration.
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*
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* Returned Value:
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* Zero (OK) is returned on success; a negated errno value is returned on
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* any failure to indicate the nature of the failure.
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*
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****************************************************************************/
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#ifdef CONFIG_LIB_BOARDCTL
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int board_app_initialize(uintptr_t arg)
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{
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#ifdef HAVE_RTC_DRIVER
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FAR struct rtc_lowerhalf_s *rtclower;
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#endif
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int ret = OK;
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#ifdef HAVE_PROC
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/* mount the proc filesystem */
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syslog(LOG_INFO, "Mounting procfs to /proc\n");
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ret = mount(NULL, CONFIG_NSH_PROC_MOUNTPOINT, "procfs", 0, NULL);
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if (ret < 0)
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{
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syslog(LOG_ERR,
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"ERROR: Failed to mount the PROC filesystem: %d (%d)\n",
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ret, errno);
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return ret;
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}
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#endif
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#ifdef HAVE_RTC_DRIVER
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/* Instantiate the STM32 lower-half RTC driver */
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rtclower = stm32l4_rtc_lowerhalf();
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if (!rtclower)
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{
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serr("ERROR: Failed to instantiate the RTC lower-half driver\n");
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return -ENOMEM;
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}
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else
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{
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/* Bind the lower half driver and register the combined RTC driver
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* as /dev/rtc0
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*/
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ret = rtc_initialize(0, rtclower);
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if (ret < 0)
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{
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serr("ERROR: Failed to bind/register the RTC driver: %d\n", ret);
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return ret;
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}
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}
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#endif
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#ifdef CONFIG_I2C
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i2cinfo("Initializing I2C buses\n");
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#ifdef CONFIG_STM32L4_I2C1
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g_i2c1 = stm32l4_i2cbus_initialize(1);
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#ifdef CONFIG_I2C_DRIVER
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i2c_register(g_i2c1, 1);
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#endif
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#endif
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#ifdef CONFIG_STM32L4_I2C3
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g_i2c3 = stm32l4_i2cbus_initialize(3);
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#ifdef CONFIG_I2C_DRIVER
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i2c_register(g_i2c3, 3);
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#endif
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#endif
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#endif /* CONFIG_I2C */
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#ifdef HAVE_USBHOST
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/* Initialize USB host operation. stm32l4_usbhost_initialize() starts a
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* thread that will monitor for USB connection and disconnection events.
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*/
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ret = stm32l4_usbhost_initialize();
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if (ret != OK)
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{
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udbg("ERROR: Failed to initialize USB host: %d\n", ret);
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return ret;
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}
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#endif
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#ifdef HAVE_USBMONITOR
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/* Start the USB Monitor */
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ret = usbmonitor_start(0, NULL);
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if (ret != OK)
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{
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udbg("ERROR: Failed to start USB monitor: %d\n", ret);
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return ret;
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}
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#endif
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#ifdef CONFIG_ADC
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ainfo("Initializing ADC\n");
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stm32l4_adc_setup();
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#ifdef CONFIG_STM32L4_DFSDM
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/* Initialize DFSDM and register its filters as additional ADC devices. */
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ret = stm32_dfsdm_setup();
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if (ret < 0)
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{
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aerr("ERROR: Failed to start DFSDM: %d\n", ret);
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}
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#endif
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#endif /* CONFIG_ADC */
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#ifdef CONFIG_DAC
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ainfo("Initializing DAC\n");
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stm32l4_dac_setup();
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#endif
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return ret;
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}
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#endif /* CONFIG_LIB_BOARDCTL */
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#ifdef CONFIG_BOARDCTL_IOCTL
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int board_ioctl(unsigned int cmd, uintptr_t arg)
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{
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switch (cmd)
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{
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default:
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return -EINVAL;
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}
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return OK;
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}
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#endif
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#if defined(CONFIG_BOARDCTL_UNIQUEID)
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int board_uniqueid(uint8_t *uniqueid)
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{
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if (uniqueid == 0)
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{
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return -EINVAL;
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}
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stm32l4_get_uniqueid(uniqueid);
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return OK;
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}
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#endif
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