stm32g071b-disco: gpio dev support
This commit is contained in:
raiden00pl
Alan Carvalho de Assis
parent
0253f0ff66
commit
0e97e57d23
@ -47,6 +47,10 @@ ifeq ($(CONFIG_SENSORS_INA226),y)
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CSRCS += stm32_ina226.c
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endif
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ifeq ($(CONFIG_DEV_GPIO),y)
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CSRCS += stm32_gpio.c
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endif
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DEPPATH += --dep-path board
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VPATH += :board
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CFLAGS += $(shell $(INCDIR) "$(CC)" $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)board)
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@ -101,6 +101,15 @@ int stm32_bringup(void)
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}
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#endif
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#ifdef CONFIG_DEV_GPIO
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ret = stm32_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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320
boards/arm/stm32f0l0g0/stm32g071b-disco/src/stm32_gpio.c
Normal file
320
boards/arm/stm32f0l0g0/stm32g071b-disco/src/stm32_gpio.c
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@ -0,0 +1,320 @@
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/****************************************************************************
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* boards/arm/stm32f0l0g0/stm32g071b-disco/src/stm32_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 <nuttx/ioexpander/gpio.h>
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#include <arch/board/board.h>
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#include "stm32_gpio.h"
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#include "stm32g071b-disco.h"
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct stm32gpio_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 stm32gpint_dev_s
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{
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struct stm32gpio_dev_s stm32gpio;
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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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static int gpin_read(struct gpio_dev_s *dev, bool *value);
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static int gpout_read(struct gpio_dev_s *dev, bool *value);
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static int gpout_write(struct gpio_dev_s *dev, bool value);
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static int gpint_read(struct gpio_dev_s *dev, bool *value);
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static int gpint_attach(struct gpio_dev_s *dev,
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pin_interrupt_t callback);
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static int gpint_enable(struct gpio_dev_s *dev, bool enable);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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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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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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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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#if BOARD_NGPIOIN > 0
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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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GPIO_IN2
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};
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static struct stm32gpio_dev_s g_gpin[BOARD_NGPIOIN];
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#endif
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#if BOARD_NGPIOOUT
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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_OUT1,
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GPIO_OUT2,
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GPIO_OUT3,
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GPIO_OUT4
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};
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static struct stm32gpio_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 uint32_t g_gpiointinputs[BOARD_NGPIOINT] =
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{
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GPIO_INT1,
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};
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static struct stm32gpint_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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static int stm32gpio_interrupt(int irq, void *context, void *arg)
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{
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struct stm32gpint_dev_s *stm32gpint =
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(struct stm32gpint_dev_s *)arg;
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DEBUGASSERT(stm32gpint != NULL && stm32gpint->callback != NULL);
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gpioinfo("Interrupt! callback=%p\n", stm32gpint->callback);
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stm32gpint->callback(&stm32gpint->stm32gpio.gpio,
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stm32gpint->stm32gpio.id);
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return OK;
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}
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static int gpin_read(struct gpio_dev_s *dev, bool *value)
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{
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struct stm32gpio_dev_s *stm32gpio =
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(struct stm32gpio_dev_s *)dev;
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DEBUGASSERT(stm32gpio != NULL && value != NULL);
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DEBUGASSERT(stm32gpio->id < BOARD_NGPIOIN);
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gpioinfo("Reading...\n");
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*value = stm32_gpioread(g_gpioinputs[stm32gpio->id]);
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return OK;
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}
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static int gpout_read(struct gpio_dev_s *dev, bool *value)
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{
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struct stm32gpio_dev_s *stm32gpio =
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(struct stm32gpio_dev_s *)dev;
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DEBUGASSERT(stm32gpio != NULL && value != NULL);
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DEBUGASSERT(stm32gpio->id < BOARD_NGPIOOUT);
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gpioinfo("Reading...\n");
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*value = stm32_gpioread(g_gpiooutputs[stm32gpio->id]);
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return OK;
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}
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static int gpout_write(struct gpio_dev_s *dev, bool value)
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{
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struct stm32gpio_dev_s *stm32gpio =
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(struct stm32gpio_dev_s *)dev;
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DEBUGASSERT(stm32gpio != NULL);
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DEBUGASSERT(stm32gpio->id < BOARD_NGPIOOUT);
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gpioinfo("Writing %d\n", (int)value);
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stm32_gpiowrite(g_gpiooutputs[stm32gpio->id], value);
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return OK;
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}
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static int gpint_read(struct gpio_dev_s *dev, bool *value)
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{
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struct stm32gpint_dev_s *stm32gpint =
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(struct stm32gpint_dev_s *)dev;
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DEBUGASSERT(stm32gpint != NULL && value != NULL);
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DEBUGASSERT(stm32gpint->stm32gpio.id < BOARD_NGPIOINT);
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gpioinfo("Reading int pin...\n");
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*value = stm32_gpioread(g_gpiointinputs[stm32gpint->stm32gpio.id]);
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return OK;
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}
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static int gpint_attach(struct gpio_dev_s *dev,
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pin_interrupt_t callback)
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{
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struct stm32gpint_dev_s *stm32gpint =
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(struct stm32gpint_dev_s *)dev;
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gpioinfo("Attaching the callback\n");
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/* Make sure the interrupt is disabled */
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stm32_gpiosetevent(g_gpiointinputs[stm32gpint->stm32gpio.id], false,
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false, false, NULL, NULL);
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gpioinfo("Attach %p\n", callback);
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stm32gpint->callback = callback;
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return OK;
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}
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static int gpint_enable(struct gpio_dev_s *dev, bool enable)
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{
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struct stm32gpint_dev_s *stm32gpint =
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(struct stm32gpint_dev_s *)dev;
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if (enable)
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{
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if (stm32gpint->callback != NULL)
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{
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gpioinfo("Enabling the interrupt\n");
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/* Configure the interrupt for rising edge */
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stm32_gpiosetevent(g_gpiointinputs[stm32gpint->stm32gpio.id],
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true, false, false, stm32gpio_interrupt,
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&g_gpint[stm32gpint->stm32gpio.id]);
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}
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}
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else
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{
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gpioinfo("Disable the interrupt\n");
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stm32_gpiosetevent(g_gpiointinputs[stm32gpint->stm32gpio.id],
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false, false, false, NULL, NULL);
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}
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return OK;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_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 stm32_gpio_initialize(void)
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{
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int i;
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int pincount = 0;
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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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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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stm32_configgpio(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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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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stm32_gpiowrite(g_gpiooutputs[i], 0);
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stm32_configgpio(g_gpiooutputs[i]);
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pincount++;
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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++)
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{
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/* Setup and register the GPIO pin */
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g_gpint[i].stm32gpio.gpio.gp_pintype = GPIO_INTERRUPT_PIN;
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g_gpint[i].stm32gpio.gpio.gp_ops = &gpint_ops;
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g_gpint[i].stm32gpio.id = i;
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gpio_pin_register(&g_gpint[i].stm32gpio.gpio, pincount);
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/* Configure the pin that will be used as interrupt input */
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stm32_configgpio(g_gpiointinputs[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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@ -68,6 +68,38 @@
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#define GPIO_SSD1306_RST (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_HIGH | \
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GPIO_OUTPUT_SET | GPIO_PORTA | GPIO_PIN6)
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/* GPIO definitions *********************************************************/
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/* IN1 - STLK_ON - PA11
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* IN2 - SMPS_ON - PA12
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*
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* OUT1 - ENCC1 - PB10
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* OUT2 - ENCC1 - PB11
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* OUT3 - RD_CC1 - PB12
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* OUT4 - EN_SMPS - PA0
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*
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* INT1 - Door sense - PC8
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*/
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#define BOARD_NGPIOIN (2) /* GPIO input pins */
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#define BOARD_NGPIOOUT (4) /* GPIO input with interrupts */
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#define BOARD_NGPIOINT (1) /* GPIO output pins */
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#define GPIO_IN1 (GPIO_INPUT | GPIO_FLOAT | GPIO_PORTA | GPIO_PIN11)
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#define GPIO_IN2 (GPIO_INPUT | GPIO_FLOAT | GPIO_PORTA | GPIO_PIN12)
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#define GPIO_OUT1 (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_HIGH | \
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GPIO_OUTPUT_CLEAR | GPIO_PORTB | GPIO_PIN10)
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#define GPIO_OUT2 (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_HIGH | \
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GPIO_OUTPUT_CLEAR | GPIO_PORTB | GPIO_PIN11)
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#define GPIO_OUT3 (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_HIGH | \
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GPIO_OUTPUT_CLEAR | GPIO_PORTB | GPIO_PIN12)
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#define GPIO_OUT4 (GPIO_OUTPUT | GPIO_PUSHPULL | GPIO_SPEED_HIGH | \
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GPIO_OUTPUT_CLEAR | GPIO_PORTA | GPIO_PIN0)
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#define GPIO_INT1 (GPIO_INPUT | GPIO_PULLUP | GPIO_EXTI | \
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GPIO_PORTC | GPIO_PIN8)
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/****************************************************************************
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* Public Data
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****************************************************************************/
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@ -126,4 +158,16 @@ int stm32_djoy_initialization(void);
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int stm32_ina226_initialization(void);
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#endif
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/****************************************************************************
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* Name: stm32_gpio_initialize
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*
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* Description:
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* Initialize GPIO drivers
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*
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****************************************************************************/
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#ifdef CONFIG_DEV_GPIO
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int stm32_gpio_initialize(void);
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#endif
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#endif /* __BOARDS_ARM_STM32F0L0G0_STM32G071B_DISCO_SRC_STM32G071B_DISCO_H */
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