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commit 6a2152aa44758e4cbb2eb58fb19de1ed9d5f789f
Author: raiden00pl <raide...@railab.me>
AuthorDate: Tue Mar 14 10:34:42 2023 +0100
boards/nrf5340-dk: add buttons example
---
boards/Kconfig | 1 +
.../nrf5340-dk/configs/buttons_cpuapp/defconfig | 50 +++++++
boards/arm/nrf53/nrf5340-dk/src/Makefile | 4 +
boards/arm/nrf53/nrf5340-dk/src/nrf53_bringup.c | 14 ++
boards/arm/nrf53/nrf5340-dk/src/nrf53_buttons.c | 153 +++++++++++++++++++++
5 files changed, 222 insertions(+)
diff --git a/boards/Kconfig b/boards/Kconfig
index 06da821666..3321ee0419 100644
--- a/boards/Kconfig
+++ b/boards/Kconfig
@@ -1071,6 +1071,7 @@ config ARCH_BOARD_NRF5340_DK
depends on ARCH_CHIP_NRF53
select ARCH_HAVE_LEDS
select ARCH_HAVE_BUTTONS
+ select ARCH_HAVE_IRQBUTTONS
---help---
This option selects the nRF5340 Development Kit (PCA10095)
diff --git a/boards/arm/nrf53/nrf5340-dk/configs/buttons_cpuapp/defconfig
b/boards/arm/nrf53/nrf5340-dk/configs/buttons_cpuapp/defconfig
new file mode 100644
index 0000000000..456af44faa
--- /dev/null
+++ b/boards/arm/nrf53/nrf5340-dk/configs/buttons_cpuapp/defconfig
@@ -0,0 +1,50 @@
+#
+# 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_NSH_DISABLE_IFCONFIG is not set
+# CONFIG_NSH_DISABLE_PS is not set
+# CONFIG_STANDARD_SERIAL is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="nrf5340-dk"
+CONFIG_ARCH_BOARD_NRF5340_DK=y
+CONFIG_ARCH_BUTTONS=y
+CONFIG_ARCH_CHIP="nrf53"
+CONFIG_ARCH_CHIP_NRF5340=y
+CONFIG_ARCH_CHIP_NRF5340_CPUAPP=y
+CONFIG_ARCH_CHIP_NRF53=y
+CONFIG_ARCH_IRQBUTTONS=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_STDARG_H=y
+CONFIG_BOARD_LOOPSPERMSEC=5500
+CONFIG_EXAMPLES_BUTTONS=y
+CONFIG_EXPERIMENTAL=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_INPUT=y
+CONFIG_INPUT_BUTTONS=y
+CONFIG_INPUT_BUTTONS_LOWER=y
+CONFIG_MM_REGIONS=2
+CONFIG_NRF53_GPIOTE=y
+CONFIG_NRF53_UART0=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=524288
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_START_DAY=26
+CONFIG_START_MONTH=3
+CONFIG_SYMTAB_ORDEREDBYNAME=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_UART0_SERIAL_CONSOLE=y
diff --git a/boards/arm/nrf53/nrf5340-dk/src/Makefile
b/boards/arm/nrf53/nrf5340-dk/src/Makefile
index 9c5313b9b7..0b4d1b1546 100644
--- a/boards/arm/nrf53/nrf5340-dk/src/Makefile
+++ b/boards/arm/nrf53/nrf5340-dk/src/Makefile
@@ -36,6 +36,10 @@ else
CSRCS += nrf53_userleds.c
endif
+ifeq ($(CONFIG_ARCH_BUTTONS),y)
+CSRCS += nrf53_buttons.c
+endif
+
ifeq ($(CONFIG_TIMER),y)
ifeq ($(CONFIG_NRF53_TIMER),y)
CSRCS += nrf53_timer.c
diff --git a/boards/arm/nrf53/nrf5340-dk/src/nrf53_bringup.c
b/boards/arm/nrf53/nrf5340-dk/src/nrf53_bringup.c
index 3523706b0a..147b811912 100644
--- a/boards/arm/nrf53/nrf5340-dk/src/nrf53_bringup.c
+++ b/boards/arm/nrf53/nrf5340-dk/src/nrf53_bringup.c
@@ -31,6 +31,10 @@
# include <nuttx/leds/userled.h>
#endif
+#ifdef CONFIG_INPUT_BUTTONS
+# include <nuttx/input/buttons.h>
+#endif
+
#ifdef CONFIG_NRF53_SOFTDEVICE_CONTROLLER
# include "nrf53_sdc.h"
#endif
@@ -79,6 +83,16 @@ int nrf53_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_RPTUN
#ifdef CONFIG_NRF53_APPCORE
nrf53_rptun_init("nrf53-shmem", "appcore");
diff --git a/boards/arm/nrf53/nrf5340-dk/src/nrf53_buttons.c
b/boards/arm/nrf53/nrf5340-dk/src/nrf53_buttons.c
new file mode 100644
index 0000000000..521551f868
--- /dev/null
+++ b/boards/arm/nrf53/nrf5340-dk/src/nrf53_buttons.c
@@ -0,0 +1,153 @@
+/****************************************************************************
+ * boards/arm/nrf53/nrf5340-dk/src/nrf53_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 <debug.h>
+#include <errno.h>
+#include <stdint.h>
+
+#include <nuttx/arch.h>
+#include <nuttx/board.h>
+#include <arch/board/board.h>
+
+#include "nrf53_gpio.h"
+#include "nrf53_gpiote.h"
+
+#include "nrf5340-dk.h"
+
+#ifdef CONFIG_ARCH_BUTTONS
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/* Pin configuration for each nrf5340 button. This array is indexed by
+ * the BUTTON_* definitions in board.h
+ */
+
+static const uint32_t g_buttons[NUM_BUTTONS] =
+{
+ GPIO_BUTTON1,
+ GPIO_BUTTON2,
+ GPIO_BUTTON3,
+ GPIO_BUTTON4
+};
+
+/****************************************************************************
+ * 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)
+{
+ int i;
+
+ /* Configure the GPIO pins as inputs. */
+
+ for (i = 0; i < NUM_BUTTONS; i++)
+ {
+ nrf53_gpio_config(g_buttons[i]);
+ }
+
+ return NUM_BUTTONS;
+}
+
+/****************************************************************************
+ * Name: board_buttons
+ ****************************************************************************/
+
+uint32_t board_buttons(void)
+{
+ uint32_t ret = 0;
+ int i;
+
+ /* Check that state of each key */
+
+ for (i = 0; i < NUM_BUTTONS; i++)
+ {
+ /* A LOW value means that the key is pressed. */
+
+ bool released = nrf53_gpio_read(g_buttons[BUTTON_BTN1]);
+
+ /* Accumulate the set of depressed (not released) keys */
+
+ if (!released)
+ {
+ ret |= (1 << i);
+ }
+ }
+
+ return ret;
+}
+
+/****************************************************************************
+ * Button support.
+ *
+ * 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.
+ *
+ * After board_button_initialize() has been called, board_buttons() may be
+ * called to collect the state of all buttons. board_buttons() returns an
+ * 32-bit bit set with each bit associated with a button. See the
+ * BUTTON_*_BIT definitions in board.h for the meaning of each bit.
+ *
+ * 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 = OK;
+
+ ret = nrf53_gpiote_set_event(g_buttons[id], true, true, irqhandler, arg);
+ if (ret < 0)
+ {
+ ierr("ERROR: nrf53_gpiote_set_event\n");
+ return ret;
+ }
+
+ return OK;
+}
+#endif
+
+#endif /* CONFIG_ARCH_BUTTONS */
