diff options
Diffstat (limited to 'apps/drivers/boards/px4fmu/px4fmu_spi.c')
| -rw-r--r-- | apps/drivers/boards/px4fmu/px4fmu_spi.c | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/apps/drivers/boards/px4fmu/px4fmu_spi.c b/apps/drivers/boards/px4fmu/px4fmu_spi.c deleted file mode 100644 index 7a02eaeb7..000000000 --- a/apps/drivers/boards/px4fmu/px4fmu_spi.c +++ /dev/null @@ -1,136 +0,0 @@ -/**************************************************************************** - * - * Copyright (C) 2012 PX4 Development Team. 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. - * 3. Neither the name PX4 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. - * - ****************************************************************************/ - -/** - * @file px4fmu_spi.c - * - * Board-specific SPI functions. - */ - -/************************************************************************************ - * Included Files - ************************************************************************************/ - -#include <nuttx/config.h> - -#include <stdint.h> -#include <stdbool.h> -#include <debug.h> - -#include <nuttx/spi.h> -#include <arch/board/board.h> - -#include "up_arch.h" -#include "chip.h" -#include "stm32_internal.h" -#include "px4fmu_internal.h" - -/************************************************************************************ - * Public Functions - ************************************************************************************/ - -/************************************************************************************ - * Name: stm32_spiinitialize - * - * Description: - * Called to configure SPI chip select GPIO pins for the PX4FMU board. - * - ************************************************************************************/ - -__EXPORT void weak_function stm32_spiinitialize(void) -{ - stm32_configgpio(GPIO_SPI_CS_GYRO); - stm32_configgpio(GPIO_SPI_CS_ACCEL); - stm32_configgpio(GPIO_SPI_CS_MPU); - stm32_configgpio(GPIO_SPI_CS_SDCARD); - - /* De-activate all peripherals, - * required for some peripheral - * state machines - */ - stm32_gpiowrite(GPIO_SPI_CS_GYRO, 1); - stm32_gpiowrite(GPIO_SPI_CS_ACCEL, 1); - stm32_gpiowrite(GPIO_SPI_CS_MPU, 1); - stm32_gpiowrite(GPIO_SPI_CS_SDCARD, 1); -} - -__EXPORT void stm32_spi1select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected) -{ - /* SPI select is active low, so write !selected to select the device */ - - switch (devid) { - case PX4_SPIDEV_GYRO: - /* Making sure the other peripherals are not selected */ - stm32_gpiowrite(GPIO_SPI_CS_GYRO, !selected); - stm32_gpiowrite(GPIO_SPI_CS_MPU, 1); - stm32_gpiowrite(GPIO_SPI_CS_ACCEL, 1); - break; - - case PX4_SPIDEV_ACCEL: - /* Making sure the other peripherals are not selected */ - stm32_gpiowrite(GPIO_SPI_CS_ACCEL, !selected); - stm32_gpiowrite(GPIO_SPI_CS_MPU, 1); - stm32_gpiowrite(GPIO_SPI_CS_GYRO, 1); - break; - - case PX4_SPIDEV_MPU: - /* Making sure the other peripherals are not selected */ - stm32_gpiowrite(GPIO_SPI_CS_ACCEL, 1); - stm32_gpiowrite(GPIO_SPI_CS_GYRO, 1); - stm32_gpiowrite(GPIO_SPI_CS_MPU, !selected); - break; - - default: - break; - - } -} - -__EXPORT uint8_t stm32_spi1status(FAR struct spi_dev_s *dev, enum spi_dev_e devid) -{ - return SPI_STATUS_PRESENT; -} - - -__EXPORT void stm32_spi3select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected) -{ - /* there can only be one device on this bus, so always select it */ - stm32_gpiowrite(GPIO_SPI_CS_SDCARD, !selected); -} - -__EXPORT uint8_t stm32_spi3status(FAR struct spi_dev_s *dev, enum spi_dev_e devid) -{ - /* this is actually bogus, but PX4 has no way to sense the presence of an SD card */ - return SPI_STATUS_PRESENT; -} - |