From 5499c884a52e71ae9f2fbfc1a99952b0f3562eec Mon Sep 17 00:00:00 2001 From: Pavlina Koleva Date: Tue, 20 Nov 2018 13:41:08 -0600 Subject: [PATCH] configs/imxrt1050-evk: GPIO device driver support added and tested by Pavlina Koleva and Ivan Ucherdzhiev --- configs/imxrt1050-evk/src/Makefile | 4 + configs/imxrt1050-evk/src/imxrt1050-evk.h | 37 +++- configs/imxrt1050-evk/src/imxrt_bringup.c | 9 + configs/imxrt1050-evk/src/imxrt_gpio.c | 236 ++++++++++++++++++++++ 4 files changed, 285 insertions(+), 1 deletion(-) create mode 100644 configs/imxrt1050-evk/src/imxrt_gpio.c diff --git a/configs/imxrt1050-evk/src/Makefile b/configs/imxrt1050-evk/src/Makefile index d21e384af1..95bcc3299d 100644 --- a/configs/imxrt1050-evk/src/Makefile +++ b/configs/imxrt1050-evk/src/Makefile @@ -70,4 +70,8 @@ ifeq ($(CONFIG_MMCSD_SPI),y) CSRCS += imxrt_mmcsd_spi.c endif +ifeq ($(CONFIG_DEV_GPIO),y) +CSRCS += imxrt_gpio.c +endif + include $(TOPDIR)/configs/Board.mk diff --git a/configs/imxrt1050-evk/src/imxrt1050-evk.h b/configs/imxrt1050-evk/src/imxrt1050-evk.h index ab047ba046..271fc0920b 100644 --- a/configs/imxrt1050-evk/src/imxrt1050-evk.h +++ b/configs/imxrt1050-evk/src/imxrt1050-evk.h @@ -59,6 +59,28 @@ /* i.MX RT 1050 GPIO Pin Definitions ****************************************/ +/* Test points */ + +#define BOARD_NGPIOIN 0 /* Amount of GPIO Input pins */ +#define BOARD_NGPIOOUT 4 /* Amount of GPIO Output pins */ +#define BOARD_NGPIOINT 0 /* Amount of GPIO Input w/ Interruption pins */ + +#define IOMUX_GOUT (IOMUX_PULL_NONE | IOMUX_CMOS_OUTPUT | \ + IOMUX_DRIVE_40OHM | IOMUX_SPEED_MEDIUM | \ + IOMUX_SLEW_SLOW) + +#define GPIO_GOUT1 (GPIO_OUTPUT | GPIO_OUTPUT_ZERO | GPIO_PORT1 | \ + GPIO_PIN19 | IOMUX_GOUT) + +#define GPIO_GOUT2 (GPIO_OUTPUT | GPIO_OUTPUT_ZERO | GPIO_PORT1 | \ + GPIO_PIN18 | IOMUX_GOUT) + +#define GPIO_GOUT3 (GPIO_OUTPUT | GPIO_OUTPUT_ZERO | GPIO_PORT1 | \ + GPIO_PIN10 | IOMUX_GOUT) + +#define GPIO_GOUT4 (GPIO_OUTPUT | GPIO_OUTPUT_ZERO | GPIO_PORT1 | \ + GPIO_PIN9 | IOMUX_GOUT) + /* LEDs * * There are four LED status indicators located on the EVK Board. The @@ -188,7 +210,7 @@ void imxrt_spidev_initialize(void); ****************************************************************************/ #ifdef CONFIG_MMCSD_SPI -int imxrt_mmcsd_spi_initialize(int minor) +int imxrt_mmcsd_spi_initialize(int minor); #endif /**************************************************************************** @@ -209,5 +231,18 @@ int imxrt_mmcsd_spi_initialize(int minor) void imxrt_autoled_initialize(void); #endif +#ifdef CONFIG_DEV_GPIO + +/**************************************************************************** + * Name: imxrt_gpio_initialize + * + * Description: + * Initialize GPIO drivers for use with /apps/examples/gpio + * + ****************************************************************************/ + +int imxrt_gpio_initialize(void); +#endif + #endif /* __ASSEMBLY__ */ #endif /* __CONFIGS_IMXRT1050_EVK_SRC_IMXRT1050_EVK_H */ diff --git a/configs/imxrt1050-evk/src/imxrt_bringup.c b/configs/imxrt1050-evk/src/imxrt_bringup.c index b32f00f948..c622feadc6 100644 --- a/configs/imxrt1050-evk/src/imxrt_bringup.c +++ b/configs/imxrt1050-evk/src/imxrt_bringup.c @@ -179,6 +179,15 @@ int imxrt_bringup(void) } #endif +#ifdef CONFIG_DEV_GPIO + ret = imxrt_gpio_initialize(); + if (ret < 0) + { + syslog(LOG_ERR, "Failed to initialize GPIO Driver: %d\n", ret); + return ret; + } +#endif + UNUSED(ret); return OK; } diff --git a/configs/imxrt1050-evk/src/imxrt_gpio.c b/configs/imxrt1050-evk/src/imxrt_gpio.c new file mode 100644 index 0000000000..4ddd21987f --- /dev/null +++ b/configs/imxrt1050-evk/src/imxrt_gpio.c @@ -0,0 +1,236 @@ +/**************************************************************************** + * configs/imxrt1050-evk/src/imxrt_gpio.c + * + * Copyright (C) 2017-2018 Gregory Nutt. All rights reserved. + * Copyright (C) 2017 Alan Carvalho de Assis. All rights reserved. + * Author: Alan Carvalho de Assis + * + * Based on: configs/imxrt1050-evk/src/imxrt_gpio.c + * + * Author: Pavlina Koleva + * Modified by: Ivan Ucherdzhiev + * + * 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 NuttX 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include + +#include +#include +#include + +#include + +#include "chip.h" + +#include +#include "imxrt1050-evk.h" + +#if defined(CONFIG_DEV_GPIO) && !defined(CONFIG_GPIO_LOWER_HALF) + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +struct imxrtgpio_dev_s +{ + struct gpio_dev_s gpio; + uint8_t id; +}; + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +#if BOARD_NGPIOIN > 0 +static int gpin_read(FAR struct gpio_dev_s *dev, FAR bool *value); +#endif + +#if BOARD_NGPIOOUT > 0 +static int gpout_read(FAR struct gpio_dev_s *dev, FAR bool *value); +static int gpout_write(FAR struct gpio_dev_s *dev, bool value); +#endif + +/**************************************************************************** + * Private Data + ****************************************************************************/ + + #if BOARD_NGPIOIN > 0 +static const struct gpio_operations_s gpin_ops = +{ + .go_read = gpin_read, + .go_write = NULL, + .go_attach = NULL, + .go_enable = NULL, +}; + +/* This array maps the GPIO pins used as INPUT */ + +static const uint32_t g_gpioinputs[BOARD_NGPIOIN] = +{ + GPIO_IN1, +}; + +static struct imxrtgpio_dev_s g_gpin[BOARD_NGPIOIN]; +#endif + +#if BOARD_NGPIOOUT > 0 + +static const struct gpio_operations_s gpout_ops = +{ + .go_read = gpout_read, + .go_write = gpout_write, + .go_attach = NULL, + .go_enable = NULL, +}; + +/* This array maps the GPIO pins used as OUTPUT */ + +static const uint32_t g_gpiooutputs[BOARD_NGPIOOUT] = +{ + GPIO_GOUT1, + GPIO_GOUT2, + GPIO_GOUT3, + GPIO_GOUT4, +}; + +static struct imxrtgpio_dev_s g_gpout[BOARD_NGPIOOUT]; +#endif + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +#if BOARD_NGPIOIN > 0 +static int gpin_read(FAR struct gpio_dev_s *dev, FAR bool *value) +{ + FAR struct imxrtgpio_dev_s *imxrtgpio = (FAR struct imxrtgpio_dev_s *)dev; + + DEBUGASSERT(imxrtgpio != NULL && value != NULL); + DEBUGASSERT(imxrtgpio->id < BOARD_NGPIOIN); + gpioinfo("Reading...\n"); + + *value = imxrt_gpio_read(g_gpioinputs[imxrtgpio->id]); + return OK; +} +#endif + +#if BOARD_NGPIOOUT > 0 +static int gpout_read(FAR struct gpio_dev_s *dev, FAR bool *value) +{ + FAR struct imxrtgpio_dev_s *imxrtgpio = (FAR struct imxrtgpio_dev_s *)dev; + + DEBUGASSERT(imxrtgpio != NULL && value != NULL); + DEBUGASSERT(imxrtgpio->id < BOARD_NGPIOOUT); + gpioinfo("Reading...\n"); + + *value = imxrt_gpio_read(g_gpiooutputs[imxrtgpio->id]); + return OK; +} + +static int gpout_write(FAR struct gpio_dev_s *dev, bool value) +{ + FAR struct imxrtgpio_dev_s *imxrtgpio = (FAR struct imxrtgpio_dev_s *)dev; + + DEBUGASSERT(imxrtgpio != NULL); + DEBUGASSERT(imxrtgpio->id < BOARD_NGPIOOUT); + gpioinfo("Writing %d\n", (int)value); + + imxrt_gpio_write(g_gpiooutputs[imxrtgpio->id], value); + return OK; +} +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: imxrt_gpio_initialize + * + * Description: + * Initialize GPIO drivers for use with /apps/examples/gpio + * + ****************************************************************************/ + +int imxrt_gpio_initialize(void) +{ + int pincount = 0; + int i; + +#if BOARD_NGPIOIN > 0 + for (i = 0; i < BOARD_NGPIOIN; i++) + { + /* Setup and register the GPIO pin */ + + g_gpin[i].gpio.gp_pintype = GPIO_INPUT_PIN; + g_gpin[i].gpio.gp_ops = &gpin_ops; + g_gpin[i].id = i; + + (void)gpio_pin_register(&g_gpin[i].gpio, pincount); + + /* Configure the pin that will be used as input */ + + imxrt_config_gpio(g_gpioinputs[i]); + + pincount++; + } +#endif + +#if BOARD_NGPIOOUT > 0 + for (i = 0; i < BOARD_NGPIOOUT; i++) + { + /* Setup and register the GPIO pin */ + + g_gpout[i].gpio.gp_pintype = GPIO_OUTPUT_PIN; + g_gpout[i].gpio.gp_ops = &gpout_ops; + g_gpout[i].id = i; + + (void)gpio_pin_register(&g_gpout[i].gpio, pincount); + + /* Configure the pin that will be used as output */ + + imxrt_gpio_write(g_gpiooutputs[i], 0); + imxrt_config_gpio(g_gpiooutputs[i]); + + pincount++; + } +#endif + + return 0; +} +#endif /* CONFIG_DEV_GPIO && !CONFIG_GPIO_LOWER_HALF */