xtensa/esp32-s2: Adds GPIO board logic to esp32s2-saola-1.
This commit is contained in:
Sara Souza
Alan Carvalho de Assis
parent
a7a922611b
commit
9c3799f130
49
boards/xtensa/esp32s2/esp32s2-saola-1/configs/gpio/defconfig
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49
boards/xtensa/esp32s2/esp32s2-saola-1/configs/gpio/defconfig
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@ -0,0 +1,49 @@
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#
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# This file is autogenerated: PLEASE DO NOT EDIT IT.
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#
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# You can use "make menuconfig" to make any modifications to the installed .config file.
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# You can then do "make savedefconfig" to generate a new defconfig file that includes your
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# modifications.
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#
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# CONFIG_ARCH_LEDS is not set
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# CONFIG_NSH_ARGCAT is not set
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# CONFIG_NSH_CMDOPT_HEXDUMP is not set
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# CONFIG_NSH_CMDPARMS is not set
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CONFIG_ARCH="xtensa"
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CONFIG_ARCH_BOARD="esp32s2-saola-1"
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CONFIG_ARCH_BOARD_ESP32S2_SAOLA_1=y
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CONFIG_ARCH_CHIP="esp32s2"
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CONFIG_ARCH_CHIP_ESP32S2=y
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CONFIG_ARCH_CHIP_ESP32S2WROVER=y
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CONFIG_ARCH_STACKDUMP=y
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CONFIG_ARCH_XTENSA=y
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CONFIG_BOARD_LOOPSPERMSEC=16717
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CONFIG_BUILTIN=y
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CONFIG_DEV_GPIO=y
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CONFIG_ESP32S2_DATA_CACHE_0KB=y
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CONFIG_ESP32S2_GPIO_IRQ=y
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CONFIG_ESP32S2_UART0=y
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CONFIG_EXAMPLES_GPIO=y
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CONFIG_FS_PROCFS=y
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CONFIG_HAVE_CXX=y
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CONFIG_HAVE_CXXINITIALIZE=y
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CONFIG_IDLETHREAD_STACKSIZE=3072
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CONFIG_INTELHEX_BINARY=y
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CONFIG_NSH_ARCHINIT=y
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CONFIG_NSH_BUILTIN_APPS=y
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CONFIG_NSH_FILEIOSIZE=512
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CONFIG_NSH_LINELEN=64
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CONFIG_NSH_READLINE=y
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CONFIG_PREALLOC_TIMERS=4
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CONFIG_RAM_SIZE=114688
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CONFIG_RAM_START=0x20000000
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CONFIG_RAW_BINARY=y
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CONFIG_RR_INTERVAL=200
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CONFIG_SCHED_WAITPID=y
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CONFIG_SDCLONE_DISABLE=y
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CONFIG_START_DAY=6
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CONFIG_START_MONTH=12
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CONFIG_START_YEAR=2011
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CONFIG_SYSTEM_NSH=y
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CONFIG_UART0_SERIAL_CONSOLE=y
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CONFIG_USER_ENTRYPOINT="nsh_main"
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@ -74,7 +74,7 @@
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/* GPIO pins used by the GPIO Subsystem */
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/* GPIO pins used by the GPIO Subsystem */
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#define BOARD_NGPIOOUT 1 /* Amount of GPIO Output pins */
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#define BOARD_NGPIOOUT 2 /* Amount of GPIO Output pins */
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#define BOARD_NGPIOIN 1 /* Amount of GPIO Input without Interruption */
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#define BOARD_NGPIOIN 1 /* Amount of GPIO Input without Interruption */
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#define BOARD_NGPIOINT 1 /* Amount of GPIO Input w/ Interruption pins */
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#define BOARD_NGPIOINT 1 /* Amount of GPIO Input w/ Interruption pins */
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@ -30,6 +30,10 @@ ifeq ($(CONFIG_LIB_BOARDCTL),y)
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CSRCS += esp32s2_appinit.c
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CSRCS += esp32s2_appinit.c
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endif
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endif
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ifeq ($(CONFIG_DEV_GPIO),y)
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CSRCS += esp32s2_gpio.c
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endif
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SCRIPTIN = $(SCRIPTDIR)$(DELIM)esp32s2.template.ld
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SCRIPTIN = $(SCRIPTDIR)$(DELIM)esp32s2.template.ld
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SCRIPTOUT = $(SCRIPTDIR)$(DELIM)esp32s2_out.ld
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SCRIPTOUT = $(SCRIPTDIR)$(DELIM)esp32s2_out.ld
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@ -69,5 +69,21 @@
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int esp32s2_bringup(void);
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int esp32s2_bringup(void);
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/****************************************************************************
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* Name: esp32s2_gpio_init
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*
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* Description:
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* Configure the GPIO driver.
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*
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* Returned Value:
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* Zero (OK) is returned on success; A negated errno value is returned
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* to indicate the nature of any failure.
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*
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****************************************************************************/
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#ifdef CONFIG_DEV_GPIO
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int esp32s2_gpio_init(void);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ASSEMBLY__ */
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#endif /* __BOARDS_XTENSA_ESP32S2_ESP32S2_SAOLA_1_SRC_ESP32S2_SAOLA_1_H */
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#endif /* __BOARDS_XTENSA_ESP32S2_ESP32S2_SAOLA_1_SRC_ESP32S2_SAOLA_1_H */
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460
boards/xtensa/esp32s2/esp32s2-saola-1/src/esp32s2_gpio.c
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460
boards/xtensa/esp32s2/esp32s2-saola-1/src/esp32s2_gpio.c
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@ -0,0 +1,460 @@
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/****************************************************************************
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* boards/xtensa/esp32s2/esp32s2-saola-1/src/esp32s2_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 <sys/types.h>
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#include <syslog.h>
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#include <assert.h>
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#include <debug.h>
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#include <nuttx/irq.h>
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#include <arch/irq.h>
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#include <nuttx/ioexpander/gpio.h>
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#include <arch/board/board.h>
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#include "esp32s2-saola-1.h"
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#include "esp32s2_gpio.h"
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#include "hardware/esp32s2_gpio_sigmap.h"
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#if defined(CONFIG_DEV_GPIO) && !defined(CONFIG_GPIO_LOWER_HALF)
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Pin 1 and 2 are used for this example as GPIO outputs. */
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#define GPIO_OUT1 1
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#define GPIO_OUT2 2
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#define GPIO_IN1 4
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#if !defined(CONFIG_ESP32S2_GPIO_IRQ) && BOARD_NGPIOINT > 0
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# error "NGPIOINT is > 0 and GPIO interrupts aren't enabled"
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#endif
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/* Interrupt pins. GPIO9 is used as an example, any other inputs could be
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* used.
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*/
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#define GPIO_IRQPIN 9
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct esp32s2gpio_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 esp32s2gpint_dev_s
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{
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struct esp32s2gpio_dev_s esp32s2gpio;
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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_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_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_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_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_OUT1, GPIO_OUT2
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};
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static struct esp32s2gpio_dev_s g_gpout[BOARD_NGPIOOUT];
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#endif
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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 OUTPUT */
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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 esp32s2gpio_dev_s g_gpin[BOARD_NGPIOIN];
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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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/* 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_IRQPIN,
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};
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static struct esp32s2gpint_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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/****************************************************************************
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* Name: gpout_read
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*
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* Description:
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* Read a digital output pin.
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*
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* Parameters:
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* dev - A pointer to the gpio driver struct.
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* value - A pointer to store the state of the pin.
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*
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* Returned Value:
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* Zero (OK).
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*
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****************************************************************************/
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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 esp32s2gpio_dev_s *esp32s2gpio =
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(FAR struct esp32s2gpio_dev_s *)dev;
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DEBUGASSERT(esp32s2gpio != NULL && value != NULL);
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DEBUGASSERT(esp32s2gpio->id < BOARD_NGPIOOUT);
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gpioinfo("Reading...\n");
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*value = esp32s2_gpioread(g_gpiooutputs[esp32s2gpio->id]);
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return OK;
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}
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/****************************************************************************
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* Name: gpout_write
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*
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* Description:
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* Write to a digital output pin.
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*
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* Parameters:
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* dev - A pointer to the gpio driver struct.
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* value - The value to be written.
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*
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* Returned Value:
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* Zero (OK).
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*
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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 esp32s2gpio_dev_s *esp32s2gpio =
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(FAR struct esp32s2gpio_dev_s *)dev;
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DEBUGASSERT(esp32s2gpio != NULL);
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DEBUGASSERT(esp32s2gpio->id < BOARD_NGPIOOUT);
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gpioinfo("Writing %d\n", (int)value);
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esp32s2_gpiowrite(g_gpiooutputs[esp32s2gpio->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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* Name: gpin_read
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*
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* Description:
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* Read a digital input pin.
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*
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* Parameters:
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* dev - A pointer to the gpio driver struct.
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* value - A pointer to store the state of the pin.
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*
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* Returned Value:
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* Zero (OK).
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*
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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 esp32s2gpio_dev_s *esp32s2gpio =
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(FAR struct esp32s2gpio_dev_s *)dev;
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DEBUGASSERT(esp32s2gpio != NULL && value != NULL);
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DEBUGASSERT(esp32s2gpio->id < BOARD_NGPIOIN);
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gpioinfo("Reading...\n");
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*value = esp32s2_gpioread(g_gpioinputs[esp32s2gpio->id]);
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return OK;
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}
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#endif
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/****************************************************************************
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* Name: esp32s2gpio_interrupt
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*
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* Description:
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* Digital Input ISR.
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*
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****************************************************************************/
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#if BOARD_NGPIOINT > 0
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static int esp32s2gpio_interrupt(int irq, void *context, void *arg)
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{
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FAR struct esp32s2gpint_dev_s *esp32s2gpint =
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(FAR struct esp32s2gpint_dev_s *)arg;
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DEBUGASSERT(esp32s2gpint != NULL && esp32s2gpint->callback != NULL);
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gpioinfo("Interrupt! callback=%p\n", esp32s2gpint->callback);
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esp32s2gpint->callback(&esp32s2gpint->esp32s2gpio.gpio,
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esp32s2gpint->esp32s2gpio.id);
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return OK;
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}
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/****************************************************************************
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* Name: gpint_read
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*
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* Description:
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* Read a digital input pin.
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*
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* Parameters:
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* dev - A pointer to the gpio driver struct.
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* value - A pointer to store the state of the pin.
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*
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* Returned Value:
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* Zero (OK).
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*
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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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{
|
||||||
|
FAR struct esp32s2gpint_dev_s *esp32s2gpint =
|
||||||
|
(FAR struct esp32s2gpint_dev_s *)dev;
|
||||||
|
|
||||||
|
DEBUGASSERT(esp32s2gpint != NULL && value != NULL);
|
||||||
|
DEBUGASSERT(esp32s2gpint->esp32s2gpio.id < BOARD_NGPIOINT);
|
||||||
|
gpioinfo("Reading int pin...\n");
|
||||||
|
|
||||||
|
*value = esp32s2_gpioread(g_gpiointinputs[esp32s2gpint->esp32s2gpio.id]);
|
||||||
|
return OK;
|
||||||
|
}
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: gpint_attach
|
||||||
|
*
|
||||||
|
* Description:
|
||||||
|
* Attach the ISR to IRQ and register the callback. But it still doesn't
|
||||||
|
* enable interrupt yet.
|
||||||
|
*
|
||||||
|
* Parameters:
|
||||||
|
* dev - A pointer to the gpio driver struct.
|
||||||
|
* callback - User callback function.
|
||||||
|
*
|
||||||
|
* Returned Value:
|
||||||
|
* Zero (OK) is returned on success; A negated errno value is returned
|
||||||
|
* to indicate the nature of any failure.
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
static int gpint_attach(FAR struct gpio_dev_s *dev,
|
||||||
|
pin_interrupt_t callback)
|
||||||
|
{
|
||||||
|
FAR struct esp32s2gpint_dev_s *esp32s2gpint =
|
||||||
|
(FAR struct esp32s2gpint_dev_s *)dev;
|
||||||
|
int irq = ESP32S2_PIN2IRQ(g_gpiointinputs[esp32s2gpint->esp32s2gpio.id]);
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
gpioinfo("Attaching the callback\n");
|
||||||
|
|
||||||
|
/* Make sure the interrupt is disabled */
|
||||||
|
|
||||||
|
esp32s2_gpioirqdisable(irq);
|
||||||
|
ret = irq_attach(irq,
|
||||||
|
esp32s2gpio_interrupt,
|
||||||
|
&g_gpint[esp32s2gpint->esp32s2gpio.id]);
|
||||||
|
if (ret < 0)
|
||||||
|
{
|
||||||
|
syslog(LOG_ERR, "ERROR: gpint_attach() failed: %d\n", ret);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
gpioinfo("Attach %p\n", callback);
|
||||||
|
esp32s2gpint->callback = callback;
|
||||||
|
return OK;
|
||||||
|
}
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: gpint_enable
|
||||||
|
*
|
||||||
|
* Description:
|
||||||
|
* Enable/Disable interrupt.
|
||||||
|
*
|
||||||
|
* Parameters:
|
||||||
|
* dev - A pointer to the gpio driver struct.
|
||||||
|
* enable - True to enable, false to disable.
|
||||||
|
*
|
||||||
|
* Returned Value:
|
||||||
|
* Zero (OK).
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
static int gpint_enable(FAR struct gpio_dev_s *dev, bool enable)
|
||||||
|
{
|
||||||
|
FAR struct esp32s2gpint_dev_s *esp32s2gpint =
|
||||||
|
(FAR struct esp32s2gpint_dev_s *)dev;
|
||||||
|
int irq = ESP32S2_PIN2IRQ(g_gpiointinputs[esp32s2gpint->esp32s2gpio.id]);
|
||||||
|
|
||||||
|
if (enable)
|
||||||
|
{
|
||||||
|
if (esp32s2gpint->callback != NULL)
|
||||||
|
{
|
||||||
|
gpioinfo("Enabling the interrupt\n");
|
||||||
|
|
||||||
|
/* Configure the interrupt for rising edge */
|
||||||
|
|
||||||
|
esp32s2_gpioirqenable(irq, RISING);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
gpioinfo("Disable the interrupt\n");
|
||||||
|
esp32s2_gpioirqdisable(irq);
|
||||||
|
}
|
||||||
|
|
||||||
|
return OK;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Public Functions
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
/****************************************************************************
|
||||||
|
* Name: esp32s2_gpio_init
|
||||||
|
*
|
||||||
|
* Description:
|
||||||
|
* Initialize all pins. Function should be called from the bringup.
|
||||||
|
*
|
||||||
|
* Returned Value:
|
||||||
|
* Zero (OK).
|
||||||
|
*
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
int esp32s2_gpio_init(void)
|
||||||
|
{
|
||||||
|
#if BOARD_NGPIOOUT > 0
|
||||||
|
for (int 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;
|
||||||
|
gpio_pin_register(&g_gpout[i].gpio, i);
|
||||||
|
|
||||||
|
/* Configure the pins that will be used as output */
|
||||||
|
|
||||||
|
esp32s2_gpio_matrix_out(g_gpiooutputs[i], SIG_GPIO_OUT_IDX, 0, 0);
|
||||||
|
esp32s2_configgpio(g_gpiooutputs[i], OUTPUT_FUNCTION_1 |
|
||||||
|
INPUT_FUNCTION_1);
|
||||||
|
esp32s2_gpiowrite(g_gpiooutputs[i], 0);
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if BOARD_NGPIOIN > 0
|
||||||
|
for (int i = 0; i < BOARD_NGPIOIN; i++)
|
||||||
|
{
|
||||||
|
/* Setup and register the GPIO pin */
|
||||||
|
|
||||||
|
g_gpin[i].gpio.gp_pintype = GPIO_INPUT_PIN_PULLDOWN;
|
||||||
|
g_gpin[i].gpio.gp_ops = &gpin_ops;
|
||||||
|
g_gpin[i].id = i;
|
||||||
|
gpio_pin_register(&g_gpin[i].gpio, i);
|
||||||
|
|
||||||
|
/* Configure the pins that will be used as interrupt input */
|
||||||
|
|
||||||
|
esp32s2_configgpio(g_gpioinputs[i], INPUT_FUNCTION_1 | PULLDOWN);
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if BOARD_NGPIOINT > 0
|
||||||
|
for (int i = 0; i < BOARD_NGPIOINT; i++)
|
||||||
|
{
|
||||||
|
/* Setup and register the GPIO pin */
|
||||||
|
|
||||||
|
g_gpint[i].esp32s2gpio.gpio.gp_pintype = GPIO_INTERRUPT_PIN;
|
||||||
|
g_gpint[i].esp32s2gpio.gpio.gp_ops = &gpint_ops;
|
||||||
|
g_gpint[i].esp32s2gpio.id = i;
|
||||||
|
gpio_pin_register(&g_gpint[i].esp32s2gpio.gpio, i);
|
||||||
|
|
||||||
|
/* Configure the pins that will be used as interrupt input */
|
||||||
|
|
||||||
|
esp32s2_configgpio(g_gpiointinputs[i], INPUT_FUNCTION_1 | PULLDOWN);
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
return OK;
|
||||||
|
}
|
||||||
|
#endif /* CONFIG_DEV_GPIO && !CONFIG_GPIO_LOWER_HALF */
|
||||||
Loading…
x
Reference in New Issue
Block a user