boards/arm/samv7/same70-qmtech: add gpio driver support
Signed-off-by: Petro Karashchenko <petro.karashchenko@gmail.com>
This commit is contained in:
Petro Karashchenko
Xiang Xiao
parent
cce125aae7
commit
c01cd62666
@ -54,6 +54,10 @@ ifneq (,$(findstring y,$(CONFIG_SAMV7_DAC0) $(CONFIG_SAMV7_DAC1)))
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CSRCS += sam_dac.c
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endif
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ifeq ($(CONFIG_DEV_GPIO),y)
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CSRCS += sam_gpio.c
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endif
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.PHONY = context distclean
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$(SCRIPTOUT): $(LDSCRIPT_TEMPLATE) $(CONFIGFILE)
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@ -266,6 +266,14 @@ int sam_bringup(void)
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}
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#endif
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#if defined(CONFIG_DEV_GPIO)
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ret = sam_gpio_initialize();
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: sam_gpio_initialize failed: %d\n", ret);
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}
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#endif
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#if defined(CONFIG_TIMER) && defined(CONFIG_SAMV7_TC0)
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ret = sam_timer_initialize("/dev/timer0", TC_CHAN2);
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if (ret < 0)
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354
boards/arm/samv7/same70-qmtech/src/sam_gpio.c
Normal file
354
boards/arm/samv7/same70-qmtech/src/sam_gpio.c
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@ -0,0 +1,354 @@
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/****************************************************************************
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* boards/arm/samv7/same70-qmtech/src/sam_gpio.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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 <errno.h>
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#include <nuttx/ioexpander/gpio.h>
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#include "sam_gpio.h"
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#include "same70-qmtech.h"
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#ifdef CONFIG_DEV_GPIO
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct samgpio_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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struct samgpint_dev_s
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{
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struct samgpio_dev_s samgpio;
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pin_interrupt_t callback;
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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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#if BOARD_NGPIOINT > 0
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static int gpint_read(FAR struct gpio_dev_s *dev, FAR bool *value);
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static int gpint_attach(FAR struct gpio_dev_s *dev,
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pin_interrupt_t callback);
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static int gpint_enable(FAR struct gpio_dev_s *dev, bool enable);
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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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#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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#endif
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#if BOARD_NGPIOINT > 0
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static const struct gpio_operations_s gpint_ops =
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{
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.go_read = gpint_read,
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.go_write = NULL,
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.go_attach = gpint_attach,
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.go_enable = gpint_enable,
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};
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#endif
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#if BOARD_NGPIOIN > 0
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/* This array maps the GPIO pins used as INPUT */
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static const gpio_pinset_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 samgpio_dev_s g_gpin[BOARD_NGPIOIN];
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#endif
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#if BOARD_NGPIOOUT > 0
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/* This array maps the GPIO pins used as OUTPUT */
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static const gpio_pinset_t g_gpiooutputs[BOARD_NGPIOOUT] =
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{
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GPIO_OUT1
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};
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static struct samgpio_dev_s g_gpout[BOARD_NGPIOOUT];
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#endif
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#if BOARD_NGPIOINT > 0
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/* This array maps the GPIO pins used as INTERRUPT INPUTS */
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static const gpio_pinset_t g_gpiointinputs[BOARD_NGPIOINT] =
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{
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GPIO_INT1
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};
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static const int g_gpiointirqs[BOARD_NGPIOINT] =
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{
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GPIO_IRQ_INT1
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};
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static struct samgpint_dev_s g_gpint[BOARD_NGPIOINT];
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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 samgpio_dev_s *samgpio = (FAR struct samgpio_dev_s *)dev;
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DEBUGASSERT(samgpio != NULL && value != NULL);
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DEBUGASSERT(samgpio->id < BOARD_NGPIOIN);
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gpioinfo("Reading...");
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*value = sam_gpioread(g_gpioinputs[samgpio->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 samgpio_dev_s *samgpio = (FAR struct samgpio_dev_s *)dev;
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DEBUGASSERT(samgpio != NULL && value != NULL);
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DEBUGASSERT(samgpio->id < BOARD_NGPIOOUT);
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gpioinfo("Reading...");
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*value = sam_gpioread(g_gpiooutputs[samgpio->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 samgpio_dev_s *samgpio = (FAR struct samgpio_dev_s *)dev;
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DEBUGASSERT(samgpio != NULL);
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DEBUGASSERT(samgpio->id < BOARD_NGPIOOUT);
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gpioinfo("Writing %d", (int)value);
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sam_gpiowrite(g_gpiooutputs[samgpio->id], value);
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return OK;
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}
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#endif
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#if BOARD_NGPIOINT > 0
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static int samgpio_interrupt(int irq, void *context, void *arg)
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{
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FAR struct samgpint_dev_s *samgpint = (FAR struct samgpint_dev_s *)arg;
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DEBUGASSERT(samgpint != NULL && samgpint->callback != NULL);
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gpioinfo("Interrupt callback=%p", samgpint->callback);
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samgpint->callback(&samgpint->samgpio.gpio, samgpint->samgpio.id);
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return OK;
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}
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static int gpint_read(FAR struct gpio_dev_s *dev, FAR bool *value)
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{
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FAR struct samgpint_dev_s *samgpint = (FAR struct samgpint_dev_s *)dev;
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DEBUGASSERT(samgpint != NULL && value != NULL);
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DEBUGASSERT(samgpint->samgpio.id < BOARD_NGPIOINT);
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gpioinfo("Reading int pin...");
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*value = sam_gpioread(g_gpiointinputs[samgpint->samgpio.id]);
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return OK;
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}
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static int gpint_attach(FAR struct gpio_dev_s *dev,
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pin_interrupt_t callback)
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{
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FAR struct samgpint_dev_s *samgpint = (FAR struct samgpint_dev_s *)dev;
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irqstate_t flags;
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gpioinfo("Attaching the callback");
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flags = enter_critical_section();
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sam_gpioirq(g_gpiointinputs[samgpint->samgpio.id]);
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/* Make sure the interrupt is disabled */
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irq_attach(g_gpiointirqs[samgpint->samgpio.id], samgpio_interrupt,
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&g_gpint[samgpint->samgpio.id]);
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leave_critical_section(flags);
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gpioinfo("Attach %p", callback);
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samgpint->callback = callback;
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return OK;
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}
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static int gpint_enable(FAR struct gpio_dev_s *dev, bool enable)
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{
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FAR struct samgpint_dev_s *samgpint = (FAR struct samgpint_dev_s *)dev;
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irqstate_t flags;
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flags = enter_critical_section();
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if (enable)
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{
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if (samgpint->callback != NULL)
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{
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gpioinfo("Enabling the interrupt");
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sam_gpioirqenable(g_gpiointirqs[samgpint->samgpio.id]);
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}
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}
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else
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{
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sam_gpioirqdisable(g_gpiointirqs[samgpint->samgpio.id]);
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gpioinfo("Disable the interrupt");
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}
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leave_critical_section(flags);
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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: sam_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 sam_gpio_initialize(void)
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{
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#ifdef CONFIG_SAME70QMTECH_SN74HC595D_IOEXPANDER
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FAR struct ioexpander_dev_s *ioe;
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#endif
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int pincount = 0;
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int i;
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int ret = 0;
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#if BOARD_NGPIOIN > 0
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for (i = 0; i < BOARD_NGPIOIN; i++, pincount++)
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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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ret = gpio_pin_register(&g_gpin[i].gpio, pincount);
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if (ret < 0)
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{
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gpioerr("GPIOIN(%d): gpio_pin_register failed: %d", i, ret);
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return ret;
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}
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/* Configure the pin that will be used as input */
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sam_configgpio(g_gpioinputs[i]);
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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++, pincount++)
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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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ret = gpio_pin_register(&g_gpout[i].gpio, pincount);
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if (ret < 0)
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{
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gpioerr("GPIOOUT(%d): gpio_pin_register failed: %d", i, ret);
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return ret;
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}
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/* Configure the pin that will be used as output */
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sam_configgpio(g_gpiooutputs[i]);
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}
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#endif
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#if BOARD_NGPIOINT > 0
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for (i = 0; i < BOARD_NGPIOINT; i++, pincount++)
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{
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/* Setup and register the GPIO pin */
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g_gpint[i].samgpio.gpio.gp_pintype = GPIO_INTERRUPT_PIN;
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g_gpint[i].samgpio.gpio.gp_ops = &gpint_ops;
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g_gpint[i].samgpio.id = i;
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ret = gpio_pin_register(&g_gpint[i].samgpio.gpio, pincount);
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if (ret < 0)
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{
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gpioerr("GPIOINT(%d): gpio_pin_register failed: %d", i, ret);
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return ret;
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}
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/* Configure the pin that will be used as interrupt input */
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sam_configgpio(g_gpiointinputs[i]);
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}
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#endif
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return ret;
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}
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#endif
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@ -169,6 +169,12 @@
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GPIO_INT_BOTHEDGES | GPIO_PORT_PIOD | GPIO_PIN17)
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#define IRQ_HSMCI0_CD SAM_IRQ_PD17
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/* GPIO pins used by the GPIO Subsystem */
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#define BOARD_NGPIOIN 0 /* Amount of GPIO Input pins */
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#define BOARD_NGPIOOUT 0 /* Amount of GPIO Output pins */
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#define BOARD_NGPIOINT 0 /* Amount of GPIO Input w/ Interruption pins */
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/****************************************************************************
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* Public Types
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****************************************************************************/
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@ -244,5 +250,17 @@ void sam_spidev_initialize(void);
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int sam_can_setup(void);
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#endif
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/****************************************************************************
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* Name: sam_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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#ifdef CONFIG_DEV_GPIO
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int sam_gpio_initialize(void);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __BOARDS_ARM_SAMV7_SAME70_QMTECH_SRC_SAME70_QMTECH_H */
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