configs/imxrt1050-evk: GPIO device driver support added and tested by Pavlina Koleva and Ivan Ucherdzhiev
This commit is contained in:
Pavlina Koleva
Gregory Nutt
parent
bdb60ac2f7
commit
5499c884a5
@ -70,4 +70,8 @@ ifeq ($(CONFIG_MMCSD_SPI),y)
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CSRCS += imxrt_mmcsd_spi.c
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endif
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ifeq ($(CONFIG_DEV_GPIO),y)
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CSRCS += imxrt_gpio.c
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endif
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include $(TOPDIR)/configs/Board.mk
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@ -59,6 +59,28 @@
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/* i.MX RT 1050 GPIO Pin Definitions ****************************************/
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/* Test points */
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#define BOARD_NGPIOIN 0 /* Amount of GPIO Input pins */
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#define BOARD_NGPIOOUT 4 /* Amount of GPIO Output pins */
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#define BOARD_NGPIOINT 0 /* Amount of GPIO Input w/ Interruption pins */
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#define IOMUX_GOUT (IOMUX_PULL_NONE | IOMUX_CMOS_OUTPUT | \
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IOMUX_DRIVE_40OHM | IOMUX_SPEED_MEDIUM | \
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IOMUX_SLEW_SLOW)
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#define GPIO_GOUT1 (GPIO_OUTPUT | GPIO_OUTPUT_ZERO | GPIO_PORT1 | \
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GPIO_PIN19 | IOMUX_GOUT)
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#define GPIO_GOUT2 (GPIO_OUTPUT | GPIO_OUTPUT_ZERO | GPIO_PORT1 | \
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GPIO_PIN18 | IOMUX_GOUT)
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#define GPIO_GOUT3 (GPIO_OUTPUT | GPIO_OUTPUT_ZERO | GPIO_PORT1 | \
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GPIO_PIN10 | IOMUX_GOUT)
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#define GPIO_GOUT4 (GPIO_OUTPUT | GPIO_OUTPUT_ZERO | GPIO_PORT1 | \
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GPIO_PIN9 | IOMUX_GOUT)
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/* LEDs
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*
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* There are four LED status indicators located on the EVK Board. The
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@ -188,7 +210,7 @@ void imxrt_spidev_initialize(void);
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****************************************************************************/
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#ifdef CONFIG_MMCSD_SPI
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int imxrt_mmcsd_spi_initialize(int minor)
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int imxrt_mmcsd_spi_initialize(int minor);
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#endif
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/****************************************************************************
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@ -209,5 +231,18 @@ int imxrt_mmcsd_spi_initialize(int minor)
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void imxrt_autoled_initialize(void);
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#endif
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#ifdef CONFIG_DEV_GPIO
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/****************************************************************************
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* Name: imxrt_gpio_initialize
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*
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* Description:
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* Initialize GPIO drivers for use with /apps/examples/gpio
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*
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****************************************************************************/
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int imxrt_gpio_initialize(void);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __CONFIGS_IMXRT1050_EVK_SRC_IMXRT1050_EVK_H */
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@ -179,6 +179,15 @@ int imxrt_bringup(void)
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}
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#endif
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#ifdef CONFIG_DEV_GPIO
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ret = imxrt_gpio_initialize();
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize GPIO Driver: %d\n", ret);
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return ret;
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}
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#endif
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UNUSED(ret);
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return OK;
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}
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236
configs/imxrt1050-evk/src/imxrt_gpio.c
Normal file
236
configs/imxrt1050-evk/src/imxrt_gpio.c
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@ -0,0 +1,236 @@
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/****************************************************************************
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* configs/imxrt1050-evk/src/imxrt_gpio.c
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*
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* Copyright (C) 2017-2018 Gregory Nutt. All rights reserved.
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* Copyright (C) 2017 Alan Carvalho de Assis. All rights reserved.
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* Author: Alan Carvalho de Assis <acassis@gmail.com>
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*
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* Based on: configs/imxrt1050-evk/src/imxrt_gpio.c
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*
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* Author: Pavlina Koleva <pavlinaikoleva19@gmail.com>
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* Modified by: Ivan Ucherdzhiev <ivanucherdjiev@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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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdbool.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/clock.h>
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#include <nuttx/wdog.h>
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#include <nuttx/ioexpander/gpio.h>
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#include <arch/board/board.h>
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#include "chip.h"
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#include <imxrt_gpio.h>
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#include "imxrt1050-evk.h"
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#if defined(CONFIG_DEV_GPIO) && !defined(CONFIG_GPIO_LOWER_HALF)
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct imxrtgpio_dev_s
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{
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struct gpio_dev_s gpio;
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uint8_t id;
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};
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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#if BOARD_NGPIOIN > 0
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static int gpin_read(FAR struct gpio_dev_s *dev, FAR bool *value);
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#endif
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#if BOARD_NGPIOOUT > 0
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static int gpout_read(FAR struct gpio_dev_s *dev, FAR bool *value);
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static int gpout_write(FAR struct gpio_dev_s *dev, bool value);
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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#if BOARD_NGPIOIN > 0
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static const struct gpio_operations_s gpin_ops =
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{
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.go_read = gpin_read,
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.go_write = NULL,
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.go_attach = NULL,
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.go_enable = NULL,
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};
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/* This array maps the GPIO pins used as INPUT */
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static const uint32_t g_gpioinputs[BOARD_NGPIOIN] =
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{
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GPIO_IN1,
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};
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static struct imxrtgpio_dev_s g_gpin[BOARD_NGPIOIN];
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#endif
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#if BOARD_NGPIOOUT > 0
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static const struct gpio_operations_s gpout_ops =
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{
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.go_read = gpout_read,
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.go_write = gpout_write,
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.go_attach = NULL,
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.go_enable = NULL,
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};
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/* This array maps the GPIO pins used as OUTPUT */
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static const uint32_t g_gpiooutputs[BOARD_NGPIOOUT] =
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{
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GPIO_GOUT1,
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GPIO_GOUT2,
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GPIO_GOUT3,
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GPIO_GOUT4,
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};
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static struct imxrtgpio_dev_s g_gpout[BOARD_NGPIOOUT];
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#endif
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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#if BOARD_NGPIOIN > 0
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static int gpin_read(FAR struct gpio_dev_s *dev, FAR bool *value)
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{
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FAR struct imxrtgpio_dev_s *imxrtgpio = (FAR struct imxrtgpio_dev_s *)dev;
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DEBUGASSERT(imxrtgpio != NULL && value != NULL);
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DEBUGASSERT(imxrtgpio->id < BOARD_NGPIOIN);
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gpioinfo("Reading...\n");
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*value = imxrt_gpio_read(g_gpioinputs[imxrtgpio->id]);
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return OK;
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}
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#endif
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#if BOARD_NGPIOOUT > 0
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static int gpout_read(FAR struct gpio_dev_s *dev, FAR bool *value)
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{
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FAR struct imxrtgpio_dev_s *imxrtgpio = (FAR struct imxrtgpio_dev_s *)dev;
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DEBUGASSERT(imxrtgpio != NULL && value != NULL);
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DEBUGASSERT(imxrtgpio->id < BOARD_NGPIOOUT);
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gpioinfo("Reading...\n");
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*value = imxrt_gpio_read(g_gpiooutputs[imxrtgpio->id]);
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return OK;
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}
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static int gpout_write(FAR struct gpio_dev_s *dev, bool value)
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{
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FAR struct imxrtgpio_dev_s *imxrtgpio = (FAR struct imxrtgpio_dev_s *)dev;
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DEBUGASSERT(imxrtgpio != NULL);
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DEBUGASSERT(imxrtgpio->id < BOARD_NGPIOOUT);
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gpioinfo("Writing %d\n", (int)value);
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imxrt_gpio_write(g_gpiooutputs[imxrtgpio->id], value);
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return OK;
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}
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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: imxrt_gpio_initialize
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*
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* Description:
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* Initialize GPIO drivers for use with /apps/examples/gpio
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*
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****************************************************************************/
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int imxrt_gpio_initialize(void)
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{
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int pincount = 0;
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int i;
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#if BOARD_NGPIOIN > 0
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for (i = 0; i < BOARD_NGPIOIN; i++)
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{
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/* Setup and register the GPIO pin */
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g_gpin[i].gpio.gp_pintype = GPIO_INPUT_PIN;
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g_gpin[i].gpio.gp_ops = &gpin_ops;
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g_gpin[i].id = i;
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(void)gpio_pin_register(&g_gpin[i].gpio, pincount);
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/* Configure the pin that will be used as input */
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imxrt_config_gpio(g_gpioinputs[i]);
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pincount++;
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}
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#endif
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#if BOARD_NGPIOOUT > 0
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for (i = 0; i < BOARD_NGPIOOUT; i++)
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{
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/* Setup and register the GPIO pin */
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g_gpout[i].gpio.gp_pintype = GPIO_OUTPUT_PIN;
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g_gpout[i].gpio.gp_ops = &gpout_ops;
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g_gpout[i].id = i;
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(void)gpio_pin_register(&g_gpout[i].gpio, pincount);
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/* Configure the pin that will be used as output */
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imxrt_gpio_write(g_gpiooutputs[i], 0);
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imxrt_config_gpio(g_gpiooutputs[i]);
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pincount++;
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}
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#endif
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return 0;
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}
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#endif /* CONFIG_DEV_GPIO && !CONFIG_GPIO_LOWER_HALF */
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