190582c764
Laurent Latil has submitted the ICLA and we can migrate the licenses to Apache. Gregory Nutt has submitted the SGA and we can migrate the licenses to Apache. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
147 lines
4.6 KiB
C
147 lines
4.6 KiB
C
/****************************************************************************
|
|
* boards/arm/tms570/tms570ls31x-usb-kit/src/tms570_spi.c
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <debug.h>
|
|
|
|
#include <nuttx/spi/spi.h>
|
|
#include <arch/board/board.h>
|
|
|
|
#include "arm_arch.h"
|
|
#include "chip.h"
|
|
#include "tms570_spi.h"
|
|
#include "tms570ls31x_usb_kit.h"
|
|
|
|
#if defined(CONFIG_TMS570_SPI1) || defined(CONFIG_TMS570_SPI4)
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: tms570_spidev_initialize
|
|
*
|
|
* Description:
|
|
* Called to configure SPI chip select GPIO pins for the HY-MiniTMS570
|
|
* board.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void tms570_spidev_initialize(void)
|
|
{
|
|
#ifdef CONFIG_MMCSD_SPI
|
|
#if defined (CONFIG_TMS570_SPI1)
|
|
tms570_spi_gio_config(SPI1_SDCARD_CS); /* SD/MMC Card chip select */
|
|
#endif
|
|
#if defined (CONFIG_TMS570_SPI4)
|
|
tms570_spi_gio_config(SPI4_SDCARD_CS);
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: tms570_spi1/2select and tms570_spi1/2status
|
|
*
|
|
* Description:
|
|
* The external functions, tms570_spi1/2/3select and tms570_spi1/2/3status
|
|
* must be provided by board-specific logic.
|
|
* They are implementations of the select and status methods of the SPI
|
|
* interface defined by struct spi_ops_s (see include/nuttx/spi/spi.h).
|
|
* All other methods (including tms570_spibus_initialize())
|
|
* are provided by common TMS570 logic.
|
|
* To use this common SPI logic on your board:
|
|
*
|
|
* 1. Provide logic in tms570_boardinitialize() to configure SPI chip
|
|
* select pins.
|
|
* 2. Provide tms570_spi1/2/3select() and tms570_spi1/2/3status() functions
|
|
* in your board-specific logic.
|
|
* These functions will perform chip selection and status operations
|
|
* using GPIOs in the way your board is configured.
|
|
* 3. Add a calls to tms570_spibus_initialize() in your low level
|
|
* application initialization logic
|
|
* 4. The handle returned by tms570_spibus_initialize() may then be used
|
|
* to bind the SPI driver to higher level logic (e.g., calling
|
|
* mmcsd_spislotinitialize(), for example, will bind the SPI driver to
|
|
* the SPI MMC/SD driver).
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifdef CONFIG_TMS570_SPI1
|
|
void tms570_spi1select(FAR struct spi_dev_s *dev, uint32_t devid,
|
|
bool selected)
|
|
{
|
|
#ifdef CONFIG_MMCSD_SPI
|
|
if (devid == SPIDEV_MMCSD(0))
|
|
{
|
|
tms570_spi_giowrite(SPI1_SDCARD_CS, !selected);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
uint8_t tms570_spi1status(FAR struct spi_dev_s *dev, uint32_t devid)
|
|
{
|
|
uint8_t status = 0;
|
|
|
|
#ifdef CONFIG_MMCSD_SPI
|
|
if (devid == SPIDEV_MMCSD(0))
|
|
{
|
|
status |= SPI_STATUS_PRESENT;
|
|
}
|
|
#endif
|
|
|
|
return status;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_TMS570_SPI4
|
|
void tms570_spi4select(FAR struct spi_dev_s *dev, uint32_t devid,
|
|
bool selected)
|
|
{
|
|
#ifdef CONFIG_MMCSD_SPI
|
|
if (devid == SPIDEV_MMCSD(0))
|
|
{
|
|
tms570_spi_giowrite(SPI4_SDCARD_CS, !selected);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
uint8_t tms570_spi4status(FAR struct spi_dev_s *dev, uint32_t devid)
|
|
{
|
|
uint8_t status = 0;
|
|
|
|
#ifdef CONFIG_MMCSD_SPI
|
|
if (devid == SPIDEV_MMCSD(0))
|
|
{
|
|
status |= SPI_STATUS_PRESENT;
|
|
}
|
|
#endif
|
|
|
|
return status;
|
|
}
|
|
#endif
|
|
#endif /* CONFIG_TMS570_SPI1 || CONFIG_TMS570_SPI2 */
|