configs/olimex-stm32-e407/src/stm32_spi.c: Add SPI initialization logic.
This commit is contained in:
uan Flores
Gregory Nutt
parent
6aaea06da9
commit
628fdbfa56
@ -212,24 +212,35 @@
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/* Alternate function pin selections ************************************************/
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/* USART1 */
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#define GPIO_USART1_RX GPIO_USART1_RX_2 /* PB7 */
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#define GPIO_USART1_TX GPIO_USART1_TX_2 /* PB6 */
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/* USART2 */
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#define GPIO_USART2_RX GPIO_USART2_RX_2 /* PD6 */
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#define GPIO_USART2_TX GPIO_USART2_TX_2 /* PD5 */
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/* USART3 */
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#define GPIO_USART3_RX GPIO_USART3_RX_1 /* PB11 */
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#define GPIO_USART3_TX GPIO_USART3_TX_1 /* PB10 */
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/* CAN */
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#define GPIO_CAN1_RX GPIO_CAN1_RX_2 /* PB8 */
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#define GPIO_CAN1_TX GPIO_CAN1_TX_2 /* PB9 */
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#define GPIO_CAN1_RX GPIO_CAN1_RX_2 /* PB8 */
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#define GPIO_CAN1_TX GPIO_CAN1_TX_2 /* PB9 */
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/* I2C */
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#define GPIO_I2C1_SCL GPIO_I2C1_SCL_1 /* PB6 */
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#define GPIO_I2C1_SDA GPIO_I2C1_SDA_1 /* PB7 */
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#define GPIO_I2C1_SCL GPIO_I2C1_SCL_1 /* PB6 */
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#define GPIO_I2C1_SDA GPIO_I2C1_SDA_1 /* PB7 */
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/* SPI1 */
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#define GPIO_SPI1_SCK GPIO_SPI1_SCK_1 /* PA5 */
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#define GPIO_SPI1_MOSI GPIO_SPI1_MOSI_2 /* PB5 */
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#define GPIO_SPI1_MISO GPIO_SPI1_MISO_1 /* PA6 */
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/* Ethernet *************************************************************************/
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@ -36,7 +36,7 @@
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-include $(TOPDIR)/Make.defs
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ASRCS =
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CSRCS = stm32_boot.c stm32_bringup.c
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CSRCS = stm32_boot.c stm32_bringup.c stm32_spi.c
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ifeq ($(CONFIG_ARCH_LEDS),y)
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CSRCS += stm32_autoleds.c
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318
configs/olimex-stm32-e407/src/stm32_spi.c
Normal file
318
configs/olimex-stm32-e407/src/stm32_spi.c
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@ -0,0 +1,318 @@
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/****************************************************************************
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* configs/olimex-stm32-e407/src/stm32_spi.c
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*
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* Copyright (C) 2016, 2019 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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* Laurent Latil <laurent@latil.nom.fr>
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* Modify by: Acutronics Robotics (Juan Flores) <juan@erlerobotics.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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <debug.h>
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#include <nuttx/spi/spi.h>
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#include <arch/board/board.h>
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#include "up_arch.h"
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#include "chip.h"
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#include "stm32.h"
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#include "olimex-stm32-e407.h"
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#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2)
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_spidev_initialize
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*
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* Description:
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* Called to configure SPI chip select GPIO pins for the Olimex-STM32-E407
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* board.
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*
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****************************************************************************/
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void stm32_spidev_initialize(void)
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{
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/* NOTE: Clocking for SPI1 and/or SPI2 was already provided in stm32_rcc.c.
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* Configurations of SPI pins is performed in stm32_spi.c.
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* Here, we only initialize chip select pins unique to the board
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* architecture.
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*/
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#ifdef CONFIG_MTD_W25
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(void)stm32_configgpio(FLASH_SPI1_CS); /* FLASH chip select */
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#endif
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#ifdef CONFIG_CAN_MCP2515
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(void)stm32_configgpio(GPIO_MCP2515_CS); /* MCP2515 chip select */
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#endif
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#ifdef CONFIG_CL_MFRC522
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(void)stm32_configgpio(GPIO_CS_MFRC522); /* MFRC522 chip select */
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#endif
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#if defined(CONFIG_SENSORS_MAX6675)
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(void)stm32_configgpio(GPIO_MAX6675_CS); /* MAX6675 chip select */
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#endif
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#ifdef CONFIG_LCD_MAX7219
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(void)stm32_configgpio(STM32_LCD_CS); /* MAX7219 chip select */
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#endif
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#ifdef CONFIG_LCD_ST7567
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(void)stm32_configgpio(STM32_LCD_CS); /* ST7567 chip select */
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#endif
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#ifdef CONFIG_LCD_PCD8544
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(void)stm32_configgpio(STM32_LCD_CS); /* ST7567 chip select */
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#endif
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#ifdef CONFIG_WL_NRF24L01
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stm32_configgpio(GPIO_NRF24L01_CS); /* nRF24L01 chip select */
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#endif
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#ifdef CONFIG_MMCSD_SPI
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stm32_configgpio(GPIO_SDCARD_CS); /* SD/MMC Card chip select */
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#endif
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#ifdef CONFIG_IEEE802154_MRF24J40
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stm32_configgpio(GPIO_MRF24J40_CS);
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#endif
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}
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/****************************************************************************
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* Name: stm32_spi1/2select and stm32_spi1/2status
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*
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* Description:
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* The external functions, stm32_spi1/2/3select and stm32_spi1/2/3status
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* must be provided by board-specific logic. They are implementations of
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* the select and status methods of the SPI interface defined by struct
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* spi_ops_s (see include/nuttx/spi/spi.h). All other methods (including
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* stm32_spibus_initialize()) are provided by common STM32 logic. To use
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* this common SPI logic on your board:
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*
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* 1. Provide logic in stm32_boardinitialize() to configure SPI chip select
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* pins.
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* 2. Provide stm32_spi1/2/3select() and stm32_spi1/2/3status() functions
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* in your board-specific logic. These functions will perform chip
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* selection and status operations using GPIOs in the way your board is
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* configured.
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* 3. Add a calls to stm32_spibus_initialize() in your low level application
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* initialization logic
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* 4. The handle returned by stm32_spibus_initialize() may then be used to
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* bind the SPI driver to higher level logic (e.g., calling
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* mmcsd_spislotinitialize(), for example, will bind the SPI driver to
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* the SPI MMC/SD driver).
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*
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****************************************************************************/
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#ifdef CONFIG_STM32_SPI1
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void stm32_spi1select(FAR struct spi_dev_s *dev, uint32_t devid,
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bool selected)
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{
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#if defined(CONFIG_CAN_MCP2515)
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if (devid == SPIDEV_CANBUS(0))
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{
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stm32_gpiowrite(GPIO_MCP2515_CS, !selected);
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}
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#endif
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#if defined(CONFIG_CL_MFRC522)
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if (devid == SPIDEV_CONTACTLESS(0))
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{
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stm32_gpiowrite(GPIO_CS_MFRC522, !selected);
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}
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#endif
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#ifdef CONFIG_IEEE802154_MRF24J40
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if (devid == SPIDEV_IEEE802154(0))
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{
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stm32_gpiowrite(GPIO_MRF24J40_CS, !selected);
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}
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#endif
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#if defined(CONFIG_IEEE802154_XBEE)
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if (devid == SPIDEV_IEEE802154(0))
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{
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stm32_gpiowrite(GPIO_XBEE_CS, !selected);
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}
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#endif
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#if defined(CONFIG_SENSORS_MAX6675)
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if (devid == SPIDEV_TEMPERATURE(0))
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{
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stm32_gpiowrite(GPIO_MAX6675_CS, !selected);
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}
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#endif
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#ifdef CONFIG_LCD_MAX7219
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if (devid == SPIDEV_DISPLAY(0))
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{
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stm32_gpiowrite(STM32_LCD_CS, !selected);
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}
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#endif
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#ifdef CONFIG_LCD_PCD8544
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if (devid == SPIDEV_DISPLAY(0))
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{
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stm32_gpiowrite(STM32_LCD_CS, !selected);
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}
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#endif
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#ifdef CONFIG_LCD_ST7567
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if (devid == SPIDEV_DISPLAY(0))
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{
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stm32_gpiowrite(STM32_LCD_CS, !selected);
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}
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#endif
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#ifdef CONFIG_WL_NRF24L01
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if (devid == SPIDEV_WIRELESS(0))
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{
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stm32_gpiowrite(GPIO_NRF24L01_CS, !selected);
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}
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#endif
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#ifdef CONFIG_MMCSD_SPI
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if (devid == SPIDEV_MMCSD(0))
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{
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stm32_gpiowrite(GPIO_SDCARD_CS, !selected);
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}
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#endif
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#ifdef CONFIG_MTD_W25
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stm32_gpiowrite(FLASH_SPI1_CS, !selected);
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#endif
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}
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uint8_t stm32_spi1status(FAR struct spi_dev_s *dev, uint32_t devid)
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{
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uint8_t status = 0;
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#ifdef CONFIG_WL_NRF24L01
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if (devid == SPIDEV_WIRELESS(0))
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{
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status |= SPI_STATUS_PRESENT;
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}
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#endif
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#ifdef CONFIG_MMCSD_SPI
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if (devid == SPIDEV_MMCSD(0))
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{
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status |= SPI_STATUS_PRESENT;
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}
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#endif
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return status;
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}
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#endif
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#ifdef CONFIG_STM32_SPI2
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void stm32_spi2select(FAR struct spi_dev_s *dev, uint32_t devid,
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bool selected)
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{
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}
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uint8_t stm32_spi2status(FAR struct spi_dev_s *dev, uint32_t devid)
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{
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return 0;
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}
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#endif
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/****************************************************************************
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* Name: stm32_spi1cmddata
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*
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* Description:
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* Set or clear the SH1101A A0 or SD1306 D/C n bit to select data (true)
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* or command (false). This function must be provided by platform-specific
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* logic. This is an implementation of the cmddata method of the SPI
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* interface defined by struct spi_ops_s (see include/nuttx/spi/spi.h).
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*
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* Input Parameters:
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*
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* spi - SPI device that controls the bus the device that requires the CMD/
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* DATA selection.
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* devid - If there are multiple devices on the bus, this selects which one
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* to select cmd or data. NOTE: This design restricts, for example,
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* one one SPI display per SPI bus.
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* cmd - true: select command; false: select data
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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#ifdef CONFIG_SPI_CMDDATA
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#ifdef CONFIG_STM32_SPI1
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int stm32_spi1cmddata(FAR struct spi_dev_s *dev, uint32_t devid,
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bool cmd)
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{
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#ifdef CONFIG_LCD_ST7567
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if (devid == SPIDEV_DISPLAY(0))
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{
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/* This is the Data/Command control pad which determines whether the
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* data bits are data or a command.
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*/
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(void)stm32_gpiowrite(STM32_LCD_RS, !cmd);
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return OK;
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}
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#endif
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#ifdef CONFIG_LCD_PCD8544
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if (devid == SPIDEV_DISPLAY(0))
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{
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/* This is the Data/Command control pad which determines whether the
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* data bits are data or a command.
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*/
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(void)stm32_gpiowrite(STM32_LCD_CD, !cmd);
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return OK;
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}
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#endif
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return -ENODEV;
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}
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#endif
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#endif
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#endif /* CONFIG_STM32_SPI1 || CONFIG_STM32_SPI2 */
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