af8a002a10
I2C support for STM32H7 * stm32h7/chip.h: update peripherals * stm32h7x3xx_rcc.h: update definitions * stm32h7x3xx_rcc.c: remove some unused code and configure I2C clocks * stm32h7: add lower half I2C driver (based on F7 I2C driver) * configs/nucleo-h743zi: add LSM303AGR and LSM6DSL configuration * Remove whitespace * sensors/lsm303agr.c, sensors/lsm6dsl.c: add mising include, remove whitespace Approved-by: GregoryN <gnutt@nuttx.org>
95 lines
3.4 KiB
C
95 lines
3.4 KiB
C
/*****************************************************************************
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* configs/stm32l476rg/src/stm32_lsm303agr.c
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*
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* Copyright (C) 2018 Greg Nutt. All rights reserved.
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* Author: Alan Carvalho de Assis <acassis@gmail.com>
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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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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <nuttx/arch.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/board.h>
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#include "stm32l4.h"
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#include <nucleo-l476rg.h>
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#include <nuttx/sensors/lsm303agr.h>
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/*****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifndef CONFIG_STM32L4_I2C1
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# error "LSM303AGR driver requires CONFIG_STM32L4_I2C1 to be enabled"
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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: stm32_lsm303agr_initialize
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*
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* Description:
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* Initialize I2C-based LSM303AGR.
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****************************************************************************/
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int stm32l4_lsm303agr_initialize(char *devpath)
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{
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FAR struct i2c_master_s *i2c;
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int ret = OK;
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sninfo("INFO: Initializing LMS303AGR sensor over I2C\n");
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#if defined(CONFIG_STM32L4_I2C1)
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i2c = stm32l4_i2cbus_initialize(1);
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if (i2c == NULL)
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{
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return -ENODEV;
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}
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ret = lsm303agr_sensor_register("/dev/lsm303mag0", i2c, LSM303AGRMAGNETO_ADDR);
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if (ret < 0)
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{
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snerr("ERROR: Failed to initialize LMS303AGR magneto driver %s\n", devpath);
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return -ENODEV;
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}
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sninfo("INFO: LMS303AGR sensor has been initialized successfully\n");
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#endif
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return ret;
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}
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