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boards/esp32s2-saola-1: Add button driver support

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This commit is contained in:
Lucas Saavedra Vaz 2023-01-03 01:29:51 -03:00 committed by Xiang Xiao
parent 749d0dfe84
commit 89536c526b
5 changed files with 240 additions and 0 deletions
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52
boards/xtensa/esp32s2/esp32s2-saola-1/configs/buttons/defconfig Normal file
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@ -0,0 +1,52 @@
#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_ARCH_LEDS is not set
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
# CONFIG_NSH_CMDPARMS is not set
CONFIG_ARCH="xtensa"
CONFIG_ARCH_BOARD="esp32s2-saola-1"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32S2_SAOLA_1=y
CONFIG_ARCH_BUTTONS=y
CONFIG_ARCH_CHIP="esp32s2"
CONFIG_ARCH_CHIP_ESP32S2=y
CONFIG_ARCH_CHIP_ESP32S2WROVER=y
CONFIG_ARCH_IRQBUTTONS=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_ARCH_XTENSA=y
CONFIG_BOARD_LOOPSPERMSEC=16717
CONFIG_BUILTIN=y
CONFIG_ESP32S2_GPIO_IRQ=y
CONFIG_ESP32S2_UART0=y
CONFIG_EXAMPLES_BUTTONS=y
CONFIG_FS_PROCFS=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_IDLETHREAD_STACKSIZE=3072
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INPUT=y
CONFIG_INPUT_BUTTONS=y
CONFIG_INPUT_BUTTONS_LOWER=y
CONFIG_INTELHEX_BINARY=y
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_LINELEN=64
CONFIG_NSH_READLINE=y
CONFIG_PREALLOC_TIMERS=4
CONFIG_RAM_SIZE=114688
CONFIG_RAM_START=0x20000000
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_WAITPID=y
CONFIG_SPI=y
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_SYSTEM_NSH=y
CONFIG_UART0_SERIAL_CONSOLE=y

7
boards/xtensa/esp32s2/esp32s2-saola-1/include/board.h
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@ -43,6 +43,13 @@
# define BOARD_CLOCK_FREQUENCY 80000000
#endif
/* Button definitions *******************************************************/
#define BUTTON_BTN1 0 /* BUTTON_BOOT */
#define BUTTON_BTN1_BIT (1 << BUTTON_BTN1)
#define NUM_BUTTONS 1
/* LED definitions **********************************************************/
/* Define how many LEDs this board has (needed by userleds) */

4
boards/xtensa/esp32s2/esp32s2-saola-1/src/Make.defs
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@ -49,6 +49,10 @@ ifeq ($(CONFIG_ESP32S2_SPI),y)
CSRCS += esp32s2_board_spi.c
endif
ifeq ($(CONFIG_ARCH_BUTTONS),y)
CSRCS += esp32s2_buttons.c
endif
DEPPATH += --dep-path board
VPATH += :board
CFLAGS += $(shell $(INCDIR) "$(CC)" $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)board)

10
boards/xtensa/esp32s2/esp32s2-saola-1/src/esp32s2_bringup.c
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@ -221,6 +221,16 @@ int esp32s2_bringup(void)
}
#endif
#ifdef CONFIG_INPUT_BUTTONS
/* Register the BUTTON driver */
ret = btn_lower_initialize("/dev/buttons");
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: btn_lower_initialize() failed: %d\n", ret);
}
#endif
#ifdef CONFIG_SENSORS_MAX6675
ret = board_max6675_initialize(0, 2);
if (ret < 0)

167
boards/xtensa/esp32s2/esp32s2-saola-1/src/esp32s2_buttons.c Normal file
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@ -0,0 +1,167 @@
/****************************************************************************
* boards/xtensa/esp32s2/esp32s2-saola-1/src/esp32s2_buttons.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <assert.h>
#include <debug.h>
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <nuttx/arch.h>
#include <arch/board/board.h>
#include <nuttx/board.h>
#include <nuttx/irq.h>
#include <arch/irq.h>
#include "esp32s2_gpio.h"
#include "esp32s2-saola-1.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_button_initialize
*
* Description:
* board_button_initialize() must be called to initialize button resources.
* After that, board_buttons() may be called to collect the current state
* of all buttons or board_button_irq() may be called to register button
* interrupt handlers.
*
****************************************************************************/
uint32_t board_button_initialize(void)
{
esp32s2_configgpio(BUTTON_BOOT, INPUT_FUNCTION_3 | PULLUP);
return NUM_BUTTONS;
}
/****************************************************************************
* Name: board_buttons
*
* Description:
* After board_button_initialize() has been called, board_buttons() may be
* called to collect the state of all buttons. board_buttons() returns an
* 8-bit bit set with each bit associated with a button. See the
* BUTTON_*_BIT definitions in board.h for the meaning of each bit.
*
****************************************************************************/
uint32_t board_buttons(void)
{
uint8_t ret = 0;
int i = 0;
int n = 0;
bool b0 = esp32s2_gpioread(BUTTON_BOOT);
for (i = 0; i < 10; i++)
{
up_mdelay(1); /* TODO */
bool b1 = esp32s2_gpioread(BUTTON_BOOT);
if (b0 == b1)
{
n++;
}
else
{
n = 0;
}
if (3 == n)
{
break;
}
b0 = b1;
}
iinfo("b=%d n=%d\n", b0, n);
/* Low value means that the button is pressed */
if (!b0)
{
ret = 0x1;
}
return ret;
}
/****************************************************************************
* Name: board_button_irq
*
* Description:
* board_button_irq() may be called to register an interrupt handler that
* will be called when a button is depressed or released. The ID value is
* a button enumeration value that uniquely identifies a button resource.
* See the BUTTON_* definitions in board.h for the meaning of enumeration
* value.
*
****************************************************************************/
#ifdef CONFIG_ARCH_IRQBUTTONS
int board_button_irq(int id, xcpt_t irqhandler, void *arg)
{
int ret;
DEBUGASSERT(id == 0);
int irq = ESP32S2_PIN2IRQ(BUTTON_BOOT);
if (NULL != irqhandler)
{
/* Make sure the interrupt is disabled */
esp32s2_gpioirqdisable(irq);
ret = irq_attach(irq, irqhandler, arg);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: irq_attach() failed: %d\n", ret);
return ret;
}
gpioinfo("Attach %p\n", irqhandler);
gpioinfo("Enabling the interrupt\n");
/* Configure the interrupt for rising and falling edges */
esp32s2_gpioirqenable(irq, GPIO_INTR_ANYEDGE);
}
else
{
gpioinfo("Disable the interrupt\n");
esp32s2_gpioirqdisable(irq);
}
return OK;
}
#endif