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Posted to commits@nuttx.apache.org by ac...@apache.org on 2023/03/26 15:59:45 UTC
[nuttx] branch master updated: boards/xtensa/esp32s2-kaluga-1: Add touch pad support
This is an automated email from the ASF dual-hosted git repository.
acassis pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/nuttx.git
The following commit(s) were added to refs/heads/master by this push:
new 6227cd4fd4 boards/xtensa/esp32s2-kaluga-1: Add touch pad support
6227cd4fd4 is described below
commit 6227cd4fd4946c33da4a8f759aa2fda0a0c903d6
Author: Lucas Saavedra Vaz <lu...@espressif.com>
AuthorDate: Fri Mar 24 14:26:06 2023 -0300
boards/xtensa/esp32s2-kaluga-1: Add touch pad support
---
arch/xtensa/src/esp32s2/esp32s2_touch.c | 4 +
boards/xtensa/esp32s2/esp32s2-kaluga-1/Kconfig | 48 +++
.../esp32s2-kaluga-1/configs/buttons/defconfig | 53 ++++
.../esp32s2/esp32s2-kaluga-1/include/board.h | 23 ++
.../xtensa/esp32s2/esp32s2-kaluga-1/src/Make.defs | 4 +
.../esp32s2-kaluga-1/src/esp32s2-kaluga-1.h | 12 +-
.../esp32s2/esp32s2-kaluga-1/src/esp32s2_bringup.c | 10 +
.../esp32s2/esp32s2-kaluga-1/src/esp32s2_buttons.c | 342 +++++++++++++++++++++
8 files changed, 493 insertions(+), 3 deletions(-)
diff --git a/arch/xtensa/src/esp32s2/esp32s2_touch.c b/arch/xtensa/src/esp32s2/esp32s2_touch.c
index d2c0d74a75..51d764713f 100644
--- a/arch/xtensa/src/esp32s2/esp32s2_touch.c
+++ b/arch/xtensa/src/esp32s2/esp32s2_touch.c
@@ -531,7 +531,11 @@ bool esp32s2_touchread(enum touch_pad_e tp)
leave_critical_section(flags);
+#ifdef CONFIG_ESP32S2_TOUCH_THRESHOLD_POSEDGE
+ return (value < touch_pad_logic_threshold[tp]);
+#else
return (value > touch_pad_logic_threshold[tp]);
+#endif
}
/****************************************************************************
diff --git a/boards/xtensa/esp32s2/esp32s2-kaluga-1/Kconfig b/boards/xtensa/esp32s2/esp32s2-kaluga-1/Kconfig
index 6092e1e13f..2a686e7679 100644
--- a/boards/xtensa/esp32s2/esp32s2-kaluga-1/Kconfig
+++ b/boards/xtensa/esp32s2/esp32s2-kaluga-1/Kconfig
@@ -5,4 +5,52 @@
if ARCH_BOARD_ESP32S2_KALUGA_1
+config ESP32S2_TOUCH
+ bool "Touch pads"
+ default n
+ ---help---
+ Enable ESP32-S2 touch pad support.
+
+if ESP32S2_TOUCH
+
+config ESP32S2_TOUCH_THRESHOLD_POSEDGE
+ bool "Touch pad inverted threshold detection"
+ default y
+ ---help---
+ Detect positive edge of touch pad threshold rather than negative edge.
+
+config ESP32S2_TOUCH_FILTER
+ bool "Touch pad filter"
+ default n
+ ---help---
+ Enable internal filter for the touch pads.
+
+config ESP32S2_TOUCH_DENOISE
+ bool "Touch pad denoise"
+ default n
+ ---help---
+ Enable internal denoise for the touch pads.
+
+config ESP32S2_TOUCH_IRQ
+ bool "Enable touch pad interrupts"
+ select ESP32S2_RTCIO_IRQ
+ select ESP32S2_RT_TIMER
+ depends on ARCH_IRQBUTTONS
+ default n
+ ---help---
+ Enable interrupt support for the touch pads.
+
+config ESP32S2_TOUCH_IRQ_INTERVAL_MS
+ int "Minimum interrupt interval (ms)"
+ depends on ESP32S2_TOUCH_IRQ
+ default 100
+ ---help---
+ Minimum interval between touch pad interrupts (in milliseconds).
+ As the RTC interrupts are triggered by level, this interrupt
+ will be constantly set off as long as the touch pad is pressed.
+ To avoid that, we disable the interrupt when it is triggered and
+ set a timer for it to be re-enabled.
+
+endif # ESP32S2_TOUCH
+
endif # ARCH_BOARD_ESP32S2_KALUGA_1
diff --git a/boards/xtensa/esp32s2/esp32s2-kaluga-1/configs/buttons/defconfig b/boards/xtensa/esp32s2/esp32s2-kaluga-1/configs/buttons/defconfig
new file mode 100644
index 0000000000..046930d23c
--- /dev/null
+++ b/boards/xtensa/esp32s2/esp32s2-kaluga-1/configs/buttons/defconfig
@@ -0,0 +1,53 @@
+#
+# 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_ARCH="xtensa"
+CONFIG_ARCH_BOARD="esp32s2-kaluga-1"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ESP32S2_KALUGA_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_TOUCH=y
+CONFIG_ESP32S2_TOUCH_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
diff --git a/boards/xtensa/esp32s2/esp32s2-kaluga-1/include/board.h b/boards/xtensa/esp32s2/esp32s2-kaluga-1/include/board.h
index 6d8da0f892..529458a6b2 100644
--- a/boards/xtensa/esp32s2/esp32s2-kaluga-1/include/board.h
+++ b/boards/xtensa/esp32s2/esp32s2-kaluga-1/include/board.h
@@ -43,6 +43,29 @@
# define BOARD_CLOCK_FREQUENCY 80000000
#endif
+/* Button definitions *******************************************************/
+
+#define BUTTON_BTN1 0 /* BUTTON_BOOT */
+#define BUTTON_BTN1_BIT (1 << BUTTON_BTN1)
+
+#ifdef CONFIG_ESP32S2_TOUCH
+# define BUTTON_BTN2 1 /* TOUCHPAD_PHOTO */
+# define BUTTON_BTN2_BIT (1 << BUTTON_BTN2)
+# define BUTTON_BTN3 2 /* TOUCHPAD_PLAY */
+# define BUTTON_BTN3_BIT (1 << BUTTON_BTN3)
+# define BUTTON_BTN4 3 /* TOUCHPAD_RECORD */
+# define BUTTON_BTN4_BIT (1 << BUTTON_BTN4)
+# define BUTTON_BTN5 4 /* TOUCHPAD_NETWORK */
+# define BUTTON_BTN5_BIT (1 << BUTTON_BTN5)
+# define BUTTON_BTN6 5 /* TOUCHPAD_VOLUP */
+# define BUTTON_BTN6_BIT (1 << BUTTON_BTN6)
+# define BUTTON_BTN7 6 /* TOUCHPAD_VOLDN */
+# define BUTTON_BTN7_BIT (1 << BUTTON_BTN7)
+# define NUM_BUTTONS 7
+#else
+# define NUM_BUTTONS 1
+#endif
+
/* LED definitions **********************************************************/
/* Define how many LEDs this board has (needed by userleds) */
diff --git a/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/Make.defs b/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/Make.defs
index 478ded534c..80762d69e5 100644
--- a/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/Make.defs
+++ b/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/Make.defs
@@ -45,6 +45,10 @@ 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)
diff --git a/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/esp32s2-kaluga-1.h b/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/esp32s2-kaluga-1.h
index 44ca03827f..1d51eec7c3 100644
--- a/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/esp32s2-kaluga-1.h
+++ b/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/esp32s2-kaluga-1.h
@@ -33,11 +33,17 @@
* Pre-processor Definitions
****************************************************************************/
-/* ESP32S2-DevKitC GPIOs ****************************************************/
+/* ESP32S2-Kaluga-1 GPIOs ***************************************************/
-/* BOOT Button */
+/* Buttons */
-#define BUTTON_BOOT 0
+#define BUTTON_BOOT 0
+#define TP_PHOTO_CHANNEL 6
+#define TP_PLAY_CHANNEL 2
+#define TP_RECORD_CHANNEL 5
+#define TP_NETWORK_CHANNEL 11
+#define TP_VOLUP_CHANNEL 1
+#define TP_VOLDN_CHANNEL 3
/* TIMERS */
diff --git a/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/esp32s2_bringup.c b/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/esp32s2_bringup.c
index 6948159833..ff241e2fb2 100644
--- a/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/esp32s2_bringup.c
+++ b/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/esp32s2_bringup.c
@@ -206,6 +206,16 @@ 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
+
/* If we got here then perhaps not all initialization was successful, but
* at least enough succeeded to bring-up NSH with perhaps reduced
* capabilities.
diff --git a/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/esp32s2_buttons.c b/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/esp32s2_buttons.c
new file mode 100644
index 0000000000..25160afe23
--- /dev/null
+++ b/boards/xtensa/esp32s2/esp32s2-kaluga-1/src/esp32s2_buttons.c
@@ -0,0 +1,342 @@
+/****************************************************************************
+ * boards/xtensa/esp32s2/esp32s2-kaluga-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 <nuttx/signal.h>
+#include <arch/irq.h>
+
+#include "esp32s2_gpio.h"
+#include "esp32s2_rtc_gpio.h"
+#include "esp32s2_touch.h"
+
+#include "esp32s2-kaluga-1.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#ifndef ARRAY_SIZE
+# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+#define TOUCHPAD_REFH (TOUCH_HVOLT_2V7)
+#define TOUCHPAD_REFL (TOUCH_LVOLT_0V5)
+#define TOUCHPAD_ATTEN (TOUCH_HVOLT_ATTEN_1V)
+#define TOUCHPAD_SLOPE (TOUCH_SLOPE_7)
+#define TOUCHPAD_TIE_OPT (TOUCH_TIE_OPT_LOW)
+#define TOUCHPAD_FSM_MODE (TOUCH_FSM_MODE_TIMER)
+#define TOUCHPAD_DENOISE_GRADE (TOUCH_DENOISE_BIT4)
+#define TOUCHPAD_DENOISE_CAP (TOUCH_DENOISE_CAP_L4)
+#define TOUCHPAD_FILTER_MODE (TOUCH_FILTER_IIR_16)
+#define TOUCHPAD_FILTER_DEBOUNCE (1)
+#define TOUCHPAD_FILTER_NOISE (0)
+#define TOUCHPAD_FILTER_JITTER (4)
+#define TOUCHPAD_FILTER_SMH (TOUCH_SMOOTH_IIR_2)
+#define TOUCHPAD_THRESHOLD (30000)
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+struct button_type_s
+{
+ bool is_touchpad;
+ union
+ {
+ int channel;
+ int gpio;
+ } input;
+};
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+#ifdef CONFIG_ESP32S2_TOUCH
+static const struct touch_config_s tp_config =
+{
+ .refh = TOUCHPAD_REFH,
+ .refl = TOUCHPAD_REFL,
+ .atten = TOUCHPAD_ATTEN,
+ .slope = TOUCHPAD_SLOPE,
+ .tie_opt = TOUCHPAD_TIE_OPT,
+ .fsm_mode = TOUCHPAD_FSM_MODE,
+# ifdef CONFIG_ESP32S2_TOUCH_FILTER
+ .filter_mode = TOUCHPAD_FILTER_MODE,
+ .filter_debounce_cnt = TOUCHPAD_FILTER_DEBOUNCE,
+ .filter_noise_thr = TOUCHPAD_FILTER_NOISE,
+ .filter_jitter_step = TOUCHPAD_FILTER_JITTER,
+ .filter_smh_lvl = TOUCHPAD_FILTER_SMH,
+# endif
+# ifdef CONFIG_ESP32S2_TOUCH_DENOISE
+ .denoise_grade = TOUCHPAD_DENOISE_GRADE,
+ .denoise_cap_level = TOUCHPAD_DENOISE_CAP
+# endif
+};
+#endif
+
+static const struct button_type_s g_buttons[] =
+{
+ {
+ .is_touchpad = false,
+ .input.gpio = BUTTON_BOOT
+ },
+#ifdef CONFIG_ESP32S2_TOUCH
+ {
+ .is_touchpad = true,
+ .input.channel = TP_PHOTO_CHANNEL
+ },
+ {
+ .is_touchpad = true,
+ .input.channel = TP_PLAY_CHANNEL
+ },
+ {
+ .is_touchpad = true,
+ .input.channel = TP_RECORD_CHANNEL
+ },
+ {
+ .is_touchpad = true,
+ .input.channel = TP_NETWORK_CHANNEL
+ },
+ {
+ .is_touchpad = true,
+ .input.channel = TP_VOLUP_CHANNEL
+ },
+ {
+ .is_touchpad = true,
+ .input.channel = TP_VOLDN_CHANNEL
+ }
+#endif
+};
+
+/****************************************************************************
+ * 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)
+{
+#ifdef CONFIG_ESP32S2_TOUCH
+ esp32s2_configtouch(TP_PHOTO_CHANNEL, tp_config);
+ esp32s2_configtouch(TP_PLAY_CHANNEL, tp_config);
+ esp32s2_configtouch(TP_RECORD_CHANNEL, tp_config);
+ esp32s2_configtouch(TP_NETWORK_CHANNEL, tp_config);
+ esp32s2_configtouch(TP_VOLUP_CHANNEL, tp_config);
+ esp32s2_configtouch(TP_VOLDN_CHANNEL, tp_config);
+
+ esp32s2_touchsetthreshold(TP_PHOTO_CHANNEL, TOUCHPAD_THRESHOLD);
+ esp32s2_touchsetthreshold(TP_PLAY_CHANNEL, TOUCHPAD_THRESHOLD);
+ esp32s2_touchsetthreshold(TP_RECORD_CHANNEL, TOUCHPAD_THRESHOLD);
+ esp32s2_touchsetthreshold(TP_NETWORK_CHANNEL, TOUCHPAD_THRESHOLD);
+ esp32s2_touchsetthreshold(TP_VOLUP_CHANNEL, TOUCHPAD_THRESHOLD);
+ esp32s2_touchsetthreshold(TP_VOLDN_CHANNEL, TOUCHPAD_THRESHOLD);
+
+#endif
+ 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;
+ bool b0;
+ bool b1;
+ int n;
+
+ for (uint8_t btn_id = 0; btn_id < ARRAY_SIZE(g_buttons); btn_id++)
+ {
+ iinfo("Reading button %d\n", btn_id);
+
+ const struct button_type_s button_info = g_buttons[btn_id];
+
+ n = 0;
+
+ if (button_info.is_touchpad)
+ {
+ b0 = esp32s2_touchread(button_info.input.channel);
+ }
+ else
+ {
+ b0 = esp32s2_gpioread(button_info.input.gpio);
+
+ for (int i = 0; i < 10; i++)
+ {
+ up_mdelay(1);
+
+ b1 = esp32s2_gpioread(button_info.input.gpio);
+
+ 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 |= (1 << btn_id);
+ }
+ }
+
+ 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)
+{
+ DEBUGASSERT(id < ARRAY_SIZE(g_buttons));
+
+ int ret;
+ struct button_type_s button_info = g_buttons[id];
+
+#ifdef CONFIG_ESP32S2_TOUCH_IRQ
+ if (button_info.is_touchpad)
+ {
+ int channel = button_info.input.channel;
+ int irq = ESP32S2_TOUCHPAD2IRQ(channel);
+
+ if (NULL != irqhandler)
+ {
+ /* Make sure the interrupt is disabled */
+
+ esp32s2_touchirqdisable(irq);
+
+ esp32s2_touchregisterreleasecb(irqhandler);
+ ret = irq_attach(irq, irqhandler, arg);
+ if (ret < 0)
+ {
+ syslog(LOG_ERR, "ERROR: irq_attach() failed: %d\n", ret);
+ return ret;
+ }
+
+ iinfo("Attach %p to touch pad %d\n", irqhandler, channel);
+
+ iinfo("Enabling the interrupt\n");
+
+ esp32s2_touchirqenable(irq);
+ }
+ else
+ {
+ iinfo("Disabled interrupts from touch pad %d\n", channel);
+ esp32s2_touchirqdisable(irq);
+ }
+
+ return OK;
+ }
+ else
+#endif
+ {
+ int pin = button_info.input.gpio;
+ int irq = ESP32S2_PIN2IRQ(pin);
+
+ 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 to pin %d\n", irqhandler, pin);
+
+ gpioinfo("Enabling the interrupt\n");
+
+ /* Configure the interrupt for rising and falling edges */
+
+ esp32s2_gpioirqenable(irq, GPIO_INTR_ANYEDGE);
+ }
+ else
+ {
+ gpioinfo("Disabled interrupts from pin %d\n", pin);
+ esp32s2_gpioirqdisable(irq);
+ }
+
+ return OK;
+ }
+}
+#endif