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seeed-xiao-rp2040: Add initial board support

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This commit is contained in:
Rodrigo Sim 2023-11-26 22:48:48 -03:00 committed by Xiang Xiao
parent 22654f62c0
commit 14000d077d
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Documentation/platforms/arm/rp2040/boards/seeed-xiao-rp2040/README.txt Normal file
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README
======
This directory contains the port of NuttX to the Seeed Studio Xiao RP2040.
See https://wiki.seeedstudio.com/XIAO-RP2040/ for information about Seeed
Studio Xiao RP2040.
NuttX supports the following RP2040 capabilities:
- UART (console port)
- GPIO 0 (UART0 TX) and GPIO 1 (UART0 RX) are used for the console.
- I2C
- SPI (master only)
- DMAC
- PWM
- ADC
- Watchdog
- USB device
- MSC, CDC/ACM serial and these composite device are supported.
- CDC/ACM serial device can be used for the console.
- PIO (RP2040 Programmable I/O)
- Flash ROM Boot
- SRAM Boot
- If Pico SDK is available, nuttx.uf2 file which can be used in
BOOTSEL mode will be created.
- Persistent flash filesystem in unused flash ROM
NuttX also provides support for these external devices:
- BMP180 sensor at I2C0 (don't forget to define I2C0 GPIOs at "I2C0 GPIO pin assign" in Board Selection menu)
- INA219 sensor / module (don't forget to define I2C0 GPIOs at "I2C0 GPIO pin assign" in Board Selection menu)
- WS2812 smart pixel support
There is currently no direct user mode access to these RP2040 hardware features:
- SPI Slave Mode
- SSI
- RTC
- Timers
Installation
============
1. Download Raspberry Pi Pico SDK and update submodule(cyw43-driver)
$ git clone -b 1.4.0 https://github.com/raspberrypi/pico-sdk.git
$ cd pico-sdk
$ git submodule update --init --recursive lib/cyw43-driver
2. Set PICO_SDK_PATH environment variable
$ export PICO_SDK_PATH=<absolute_path_to_pico-sdk_directory>
3. Configure and build NuttX
$ git clone https://github.com/apache/nuttx.git nuttx
$ git clone https://github.com/apache/nuttx-apps.git apps
$ cd nuttx
$ make distclean
$ ./tools/configure.sh seeed-xiao-rp2040:nsh
$ make V=1
4. Connect Seeed Studio Xiao RP2040 board to USB port while pressing BOOTSEL.
The board will be detected as USB Mass Storage Device.
Then copy "nuttx.uf2" into the device.
(Same manner as the standard Pico SDK applications installation.)
5. To access the console, GPIO 0 and 1 pins must be connected to the
device such as USB-serial converter.
`usbnsh` configuration provides the console access by USB CDC/ACM serial
devcice. The console is available by using a terminal software on the USB
host.
Defconfigs
==========
- nsh
Minimum configuration with NuttShell
License exceptions
==================
The following files are originated from the files in Pico SDK.
So, the files are licensed under 3-Clause BSD same as Pico SDK.
- arch/arm/src/rp2040/rp2040_clock.c
- arch/arm/src/rp2040/rp2040_pll.c
- arch/arm/src/rp2040/rp2040_xosc.c
- These are created by referring the Pico SDK clock initialization.
- arch/arm/src/rp2040/rp2040_pio.c
- arch/arm/src/rp2040/rp2040_pio.h
- arch/arm/src/rp2040/rp2040_pio_instructions.h
- These provide the similar APIs to Pico SDK's hardware_pio APIs.
- arch/arm/src/rp2040/hardware/*.h
- These are generated from rp2040.svd originally provided in Pico SDK.

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========================
Seeed Studio Xiao RP2040
========================
The `Seeed Studio Xiao RP2040 <https://wiki.seeedstudio.com/XIAO-RP2040/>`_ is a general purpose board supplied by
Seeed Studio and it is compatible with the Raspberry Pi RP2040 ecosystem as they share the same RP2040 chip.
.. figure:: seeed-xiao-rp2040.jpg
:align: center
Features
========
* RP2040 microcontroller chip
* Dual-core ARM Cortex M0+ processor, flexible clock running up to 133 MHz
* 264KB of SRAM, and 2MB of onboard Flash memory
* 11 digital pins, 4 analog pins, 11 PWM Pins
* 1 I2C interface, 1 UART interface, 1 SPI interface, 1 SWD Bonding pad interface
* USB Type-C interface
* 1 user LED, 1 power LED, two LEDs for serial port downloading, 1 RGB LED
* 1 RESET button, 1 BOOT button
Serial Console
==============
By default a serial console appears on pins 6 (TX GPIO0) and pin 7
(RX GPIO1). This console runs a 115200-8N1.
The board can be configured to use the USB connection as the serial console.
LEDs
====
There are 2 LEDs available for user:
- A RGB LED connected to GPIO16 (PIN_LED_G), GPIO17 (PIN_LED_R), GPIO25 (PIN_LED_B).
- A NeoPixel RGB LED connected to GPIO11 (NEOPIXEL_POWER) and GPIO12 (PIN_NEOPIXEL).
Buttons
=======
There are 2 buttons available:
A RESET button and a BOOT button, which if held down when power is first
applied to the board, will cause the RP2040 to boot into programming
mode and appear as a storage device to a computer connected via USB.
Saving a .UF2 file to this device will replace the Flash ROM contents
on the RP2040.
Pin Mapping
===========
Pads numbered anticlockwise from USB connector.
===== ========== ==========
Pad Signal Notes
===== ========== ==========
0 GPI26 D0/A0
1 GPI27 D1/A1
2 GPI28 D2/A2
3 GPI29 D3/A3
4 GPIO6 D4/SDA
5 GPIO7 D5/SCL
6 GPIO0 Default TX for UART0 serial console
7 GPIO1 Default RX for UART1 serial console/CSn
8 GPIO2 D8/SCK
9 GPIO3 D10/MOSI
10 GPIO4 D9/MicroSD
11 3V3 Power output to peripherals
12 Ground
13 VIN +5V Supply to board
===== ========== ==========
Power Supply
============
For general I/O pins:
Working voltage of MCU is 3.3V. Voltage input connected to general I/O pins
may cause chip damage if it' higher than 3.3V.
For power supply pins:
The built-in DC-DC converter circuit able to change 5V voltage into 3.3V allows
to power the device with a 5V supply via VIN-PIN and via the USB connector.
Configurations
==============
nsh
---
Basic NuttShell configuration (console enabled in UART0, at 115200 bps).
README.txt
==========
.. include:: README.txt
:literal:

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LICENSE
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@ -8506,3 +8506,39 @@ Documentation/_extensions/warnings_filter.py
============================================
Copyright (c) 2021 Nordic Semiconductor ASA
SPDX-License-Identifier: Apache-2.0
arch/arm/src/rp2040/rp2040_clock.c
arch/arm/src/rp2040/rp2040_pll.c
arch/arm/src/rp2040/rp2040_xosc.c
arch/arm/src/rp2040/rp2040_pio.c
arch/arm/src/rp2040/rp2040_pio.h
arch/arm/src/rp2040/rp2040_pio_instructions.h
arch/arm/src/rp2040/hardware/*.h
=============================================
Copyright 2020 (c) 2020 Raspberry Pi (Trading) Ltd.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.

11
boards/Kconfig
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@ -1850,6 +1850,13 @@ config ARCH_BOARD_ADAFRUIT_FEATHER_RP2040
This is a port to the Adafruit Feather RP2040 board.
Support is derived from Raspberry Pi Pico support.
config ARCH_BOARD_SEEED_XIAO_RP2040
bool "Seeed Studio XIAO RP2040 board"
depends on ARCH_CHIP_RP2040
---help---
This is a port to the Seeed Studio XIAO RP2040 board.
Support is derived from Raspberry Pi Pico support.
config ARCH_BOARD_ADAFRUIT_KB2040
bool "Adafruit KB2040 board"
depends on ARCH_CHIP_RP2040
@ -3223,6 +3230,7 @@ config ARCH_BOARD
default "raspberrypi-pico-w" if ARCH_BOARD_RASPBERRYPI_PICO_W
default "pimoroni-tiny2040" if ARCH_BOARD_PIMORONI_TINY2040
default "adafruit-feather-rp2040" if ARCH_BOARD_ADAFRUIT_FEATHER_RP2040
default "seeed-xiao-rp2040" if ARCH_BOARD_SEEED_XIAO_RP2040
default "adafruit-kb2040" if ARCH_BOARD_ADAFRUIT_KB2040
default "adafruit-qt-py-rp2040" if ARCH_BOARD_ADAFRUIT_QT_PY_RP2040
default "waveshare-rp2040-lcd-1.28" if ARCH_BOARD_WAVESHARE_RP2040_LCD_1_28
@ -3628,6 +3636,9 @@ endif
if ARCH_BOARD_ADAFRUIT_FEATHER_RP2040
source "boards/arm/rp2040/adafruit-feather-rp2040/Kconfig"
endif
if ARCH_BOARD_SEEED_XIAO_RP2040
source "boards/arm/rp2040/seeed-xiao-rp2040/Kconfig"
endif
if ARCH_BOARD_ADAFRUIT_KB2040
source "boards/arm/rp2040/adafruit-kb2040/Kconfig"
endif

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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
if ARCH_BOARD_SEEED_XIAO_RP2040
endif

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#
# 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_LIBC_LONG_LONG is not set
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
# CONFIG_NSH_DISABLE_DATE is not set
# CONFIG_NSH_DISABLE_LOSMART is not set
# CONFIG_STANDARD_SERIAL is not set
CONFIG_ARCH="arm"
CONFIG_ARCH_BOARD="seeed-xiao-rp2040"
CONFIG_ARCH_BOARD_SEEED_XIAO_RP2040=y
CONFIG_ARCH_CHIP="rp2040"
CONFIG_ARCH_CHIP_RP2040=y
CONFIG_ARCH_RAMVECTORS=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARDCTL_RESET=y
CONFIG_BOARD_LOOPSPERMSEC=10450
CONFIG_BUILTIN=y
CONFIG_DEBUG_FULLOPT=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DISABLE_POSIX_TIMERS=y
CONFIG_EXAMPLES_HELLO=y
CONFIG_FS_PROCFS=y
CONFIG_FS_PROCFS_REGISTER=y
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_READLINE=y
CONFIG_RAM_SIZE=270336
CONFIG_RAM_START=0x20000000
CONFIG_READLINE_CMD_HISTORY=y
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_WAITPID=y
CONFIG_START_DAY=9
CONFIG_START_MONTH=2
CONFIG_START_YEAR=2021
CONFIG_SYSLOG_CONSOLE=y
CONFIG_SYSTEM_NSH=y
CONFIG_TESTING_GETPRIME=y
CONFIG_TESTING_OSTEST=y
CONFIG_UART0_SERIAL_CONSOLE=y

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/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/include/board.h
*
* 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.
*
****************************************************************************/
#ifndef __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_BOARD_H
#define __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_BOARD_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include "rp2040_i2cdev.h"
#include "rp2040_spidev.h"
#include "rp2040_i2sdev.h"
#include "rp2040_spisd.h"
#ifndef __ASSEMBLY__
# include <stdint.h>
#endif
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Clocking *****************************************************************/
#define MHZ 1000000
#define BOARD_XOSC_FREQ (12 * MHZ)
#define BOARD_PLL_SYS_FREQ (125 * MHZ)
#define BOARD_PLL_USB_FREQ (48 * MHZ)
#define BOARD_REF_FREQ (12 * MHZ)
#define BOARD_SYS_FREQ (125 * MHZ)
#define BOARD_PERI_FREQ (125 * MHZ)
#define BOARD_USB_FREQ (48 * MHZ)
#define BOARD_ADC_FREQ (48 * MHZ)
#define BOARD_RTC_FREQ 46875
#define BOARD_UART_BASEFREQ BOARD_PERI_FREQ
#define BOARD_TICK_CLOCK (1 * MHZ)
/* GPIO definitions *********************************************************/
#define BOARD_GPIO_LED_PIN 25
#define BOARD_NGPIOOUT 1
#define BOARD_NGPIOIN 1
#define BOARD_NGPIOINT 1
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: rp2040_boardearlyinitialize
*
* Description:
*
****************************************************************************/
void rp2040_boardearlyinitialize(void);
/****************************************************************************
* Name: rp2040_boardinitialize
*
* Description:
*
****************************************************************************/
void rp2040_boardinitialize(void);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_BOARD_H */

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/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/include/rp2040_i2cdev.h
*
* 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.
*
****************************************************************************/
#ifndef __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_I2CDEV_H
#define __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_I2CDEV_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: board_i2cdev_initialize
*
* Description:
* Initialize i2c driver and register the /dev/i2c device.
*
****************************************************************************/
#ifdef CONFIG_RP2040_I2C_DRIVER
int board_i2cdev_initialize(int bus);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_I2CDEV_H */

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@ -0,0 +1,72 @@
/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/include/rp2040_i2sdev.h
*
* 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.
*
****************************************************************************/
#ifndef __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_I2SDEV_H
#define __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_I2SDEV_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: board_i2sdev_initialize
*
* Description:
* Initialize i2s driver and register the /dev/audio/pcm0 device.
*
****************************************************************************/
#ifdef CONFIG_RP2040_I2S
int board_i2sdev_initialize(int bus);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_I2SDEV_H */

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/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/include/rp2040_spidev.h
*
* 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.
*
****************************************************************************/
#ifndef __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_SPIDEV_H
#define __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_SPIDEV_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: board_spidev_initialize
*
* Description:
* Initialize spi driver and register the /dev/spi device.
*
****************************************************************************/
int board_spidev_initialize(int bus);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_SPIDEV_H */

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/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/include/rp2040_spisd.h
*
* 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.
*
****************************************************************************/
#ifndef __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_SPISD_H
#define __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_SPISD_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: board_spisd_initialize
*
* Description:
* Initialize the SPI-based SD card.
*
****************************************************************************/
#ifdef CONFIG_RP2040_SPISD
int board_spisd_initialize(int minor, int bus);
#endif
/****************************************************************************
* Name: board_spisd_status
*
* Description:
* Get the status whether SD Card is present or not.
*
****************************************************************************/
#ifdef CONFIG_RP2040_SPISD
uint8_t board_spisd_status(struct spi_dev_s *dev, uint32_t devid);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_ARM_RP2040_SEEED_XIAO_INCLUDE_RP2040_SPISD_H */

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############################################################################
# boards/arm/rp2040/seeed-xiao-rp2040/scripts/Make.defs
#
# 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.
#
############################################################################
include $(TOPDIR)/.config
include $(TOPDIR)/tools/Config.mk
include $(TOPDIR)/tools/rp2040/Config.mk
include $(TOPDIR)/arch/arm/src/armv6-m/Toolchain.defs
ifeq ($(CONFIG_RP2040_FLASH_BOOT),y)
LDSCRIPT = seeed-xiao-rp2040-flash.ld
else
LDSCRIPT = seeed-xiao-rp2040-sram.ld
endif
ARCHSCRIPT += $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
AFLAGS := $(CFLAGS) -D__ASSEMBLY__
NXFLATLDFLAGS1 = -r -d -warn-common
NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
LDNXFLATFLAGS = -e main -s 2048

119
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/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/scripts/seeed-xiao-rp2040-flash.ld
*
* 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.
*
****************************************************************************/
MEMORY
{
flash (rx) : ORIGIN = 0x10000000, LENGTH = 2048K
sram (rwx) : ORIGIN = 0x20000000, LENGTH = 264K
}
OUTPUT_ARCH(arm)
EXTERN(_vectors)
ENTRY(_stext)
SECTIONS
{
.flash_begin : {
__flash_binary_start = .;
} > flash
.boot2 : {
__boot2_start__ = .;
KEEP (*(.boot2))
__boot2_end__ = .;
} > flash
.text : {
_stext = ABSOLUTE(.);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > flash
.init_section : {
_sinit = ABSOLUTE(.);
KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
KEEP(*(.init_array .ctors))
_einit = ABSOLUTE(.);
} > flash
.ARM.extab : {
*(.ARM.extab*)
} > flash
__exidx_start = ABSOLUTE(.);
.ARM.exidx : {
*(.ARM.exidx*)
} > flash
__exidx_end = ABSOLUTE(.);
_eronly = ABSOLUTE(.);
.ram_vectors (COPY) : {
*(.ram_vectors)
} > sram
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
*(.ram_code.*)
CONSTRUCTORS
. = ALIGN(4);
_edata = ABSOLUTE(.);
} > sram AT > flash
.flash_section : {
. = ALIGN(4*1024);
*(.flash.*)
} > flash
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(4);
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

105
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/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/scripts/seeed-xiao-rp2040-sram.ld
*
* 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.
*
****************************************************************************/
MEMORY
{
flash (rx) : ORIGIN = 0x10000000, LENGTH = 2048K
sram (rwx) : ORIGIN = 0x20000000, LENGTH = 264K
}
OUTPUT_ARCH(arm)
EXTERN(_vectors)
ENTRY(_stext)
SECTIONS
{
.text : {
_stext = ABSOLUTE(.);
rp2040_start.o(.text)
. = ALIGN(256);
*(.vectors)
*(.text .text.*)
*(.fixup)
*(.gnu.warning)
*(.rodata .rodata.*)
*(.gnu.linkonce.t.*)
*(.glue_7)
*(.glue_7t)
*(.got)
*(.gcc_except_table)
*(.gnu.linkonce.r.*)
_etext = ABSOLUTE(.);
} > sram
.init_section : {
_sinit = ABSOLUTE(.);
KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
KEEP(*(.init_array .ctors))
_einit = ABSOLUTE(.);
} > sram
.ARM.extab : {
*(.ARM.extab*)
} > sram
__exidx_start = ABSOLUTE(.);
.ARM.exidx : {
*(.ARM.exidx*)
} > sram
__exidx_end = ABSOLUTE(.);
.data : {
_sdata = ABSOLUTE(.);
*(.data .data.*)
*(.gnu.linkonce.d.*)
*(.ram_code.*)
CONSTRUCTORS
. = ALIGN(4);
_edata = ABSOLUTE(.);
} > sram
.flash_section : {
. = ALIGN(4*1024);
*(.flash.*)
} > flash
.bss : {
_sbss = ABSOLUTE(.);
*(.bss .bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(4);
_ebss = ABSOLUTE(.);
} > sram
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_info 0 : { *(.debug_info) }
.debug_line 0 : { *(.debug_line) }
.debug_pubnames 0 : { *(.debug_pubnames) }
.debug_aranges 0 : { *(.debug_aranges) }
}

33
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############################################################################
# boards/arm/rp2040/seeed-xiao-rp2040/src/Make.defs
#
# 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.
#
############################################################################
include $(TOPDIR)/Make.defs
CSRCS = rp2040_boardinitialize.c
CSRCS += rp2040_appinit.c
CSRCS += rp2040_bringup.c
ifeq ($(CONFIG_DEV_GPIO),y)
CSRCS += rp2040_gpio.c
endif
DEPPATH += --dep-path board
VPATH += :board
CFLAGS += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)board

76
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/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/src/rp2040_appinit.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 <sys/types.h>
#include <nuttx/board.h>
#include "rp2040_pico.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_app_initialize
*
* Description:
* Perform application specific initialization. This function is never
* called directly from application code, but only indirectly via the
* (non-standard) boardctl() interface using the command BOARDIOC_INIT.
*
* Input Parameters:
* arg - The boardctl() argument is passed to the board_app_initialize()
* implementation without modification. The argument has no
* meaning to NuttX; the meaning of the argument is a contract
* between the board-specific initialization logic and the
* matching application logic. The value could be such things as a
* mode enumeration value, a set of DIP switch switch settings, a
* pointer to configuration data read from a file or serial FLASH,
* or whatever you would like to do with it. Every implementation
* should accept zero/NULL as a default configuration.
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned on
* any failure to indicate the nature of the failure.
*
****************************************************************************/
int board_app_initialize(uintptr_t arg)
{
#ifdef CONFIG_BOARD_LATE_INITIALIZE
/* Board initialization already performed by board_late_initialize() */
return OK;
#else
/* Perform board-specific initialization */
return rp2040_bringup();
#endif
}

87
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/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/src/rp2040_boardinitialize.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 <nuttx/board.h>
#include <arch/board/board.h>
#include "arm_internal.h"
#include "rp2040_gpio.h"
#ifdef CONFIG_ARCH_BOARD_COMMON
#include "rp2040_common_initialize.h"
#endif /* CONFIG_ARCH_BOARD_COMMON */
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: rp2040_boardearlyinitialize
*
* Description:
*
****************************************************************************/
void rp2040_boardearlyinitialize(void)
{
#ifdef CONFIG_ARCH_BOARD_COMMON
rp2040_common_earlyinitialize();
#endif
/* --- Place any board specific early initialization here --- */
/* Set board LED pin */
rp2040_gpio_init(BOARD_GPIO_LED_PIN);
rp2040_gpio_setdir(BOARD_GPIO_LED_PIN, true);
rp2040_gpio_put(BOARD_GPIO_LED_PIN, true);
}
/****************************************************************************
* Name: rp2040_boardinitialize
*
* Description:
*
****************************************************************************/
void rp2040_boardinitialize(void)
{
#ifdef CONFIG_ARCH_BOARD_COMMON
rp2040_common_initialize();
#endif
/* --- Place any board specific initialization here --- */
}

63
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/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/src/rp2040_bringup.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 <stddef.h>
#include <nuttx/fs/fs.h>
#include <arch/board/board.h>
#include "rp2040_pico.h"
#ifdef CONFIG_ARCH_BOARD_COMMON
#include "rp2040_common_bringup.h"
#endif /* CONFIG_ARCH_BOARD_COMMON */
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: rp2040_bringup
****************************************************************************/
int rp2040_bringup(void)
{
#ifdef CONFIG_ARCH_BOARD_COMMON
int ret = rp2040_common_bringup();
if (ret < 0)
{
return ret;
}
#endif /* CONFIG_ARCH_BOARD_COMMON */
/* --- Place any board specific bringup code here --- */
return OK;
}

392
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/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/src/rp2040_gpio.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 <sys/types.h>
#include <syslog.h>
#include <nuttx/irq.h>
#include <arch/irq.h>
#include <assert.h>
#include <debug.h>
#include <nuttx/ioexpander/gpio.h>
#include <arch/board/board.h>
#include "arm_internal.h"
#include "chip.h"
#include "rp2040_gpio.h"
#if defined(CONFIG_DEV_GPIO) && !defined(CONFIG_GPIO_LOWER_HALF)
/* Output pins. GPIO25 is onboard LED any other outputs could be used.
*/
#define GPIO_OUT1 25
/* Input pins.
*/
#define GPIO_IN1 6
/* Interrupt pins.
*/
#define GPIO_IRQPIN1 14
/****************************************************************************
* Private Types
****************************************************************************/
struct rp2040gpio_dev_s
{
struct gpio_dev_s gpio;
uint8_t id;
};
struct rp2040gpint_dev_s
{
struct rp2040gpio_dev_s rp2040gpio;
pin_interrupt_t callback;
};
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
#if BOARD_NGPIOOUT > 0
static int gpout_read(struct gpio_dev_s *dev, bool *value);
static int gpout_write(struct gpio_dev_s *dev, bool value);
#endif
#if BOARD_NGPIOIN > 0
static int gpin_read(struct gpio_dev_s *dev, bool *value);
#endif
#if BOARD_NGPIOINT > 0
static int gpint_read(struct gpio_dev_s *dev, bool *value);
static int gpint_attach(struct gpio_dev_s *dev,
pin_interrupt_t callback);
static int gpint_enable(struct gpio_dev_s *dev, bool enable);
#endif
/****************************************************************************
* Private Data
****************************************************************************/
#if BOARD_NGPIOOUT > 0
static const struct gpio_operations_s gpout_ops =
{
.go_read = gpout_read,
.go_write = gpout_write,
.go_attach = NULL,
.go_enable = NULL,
};
/* This array maps the GPIO pins used as OUTPUT */
static const uint32_t g_gpiooutputs[BOARD_NGPIOOUT] =
{
GPIO_OUT1
};
static struct rp2040gpio_dev_s g_gpout[BOARD_NGPIOOUT];
#endif
#if BOARD_NGPIOIN > 0
static const struct gpio_operations_s gpin_ops =
{
.go_read = gpin_read,
.go_write = NULL,
.go_attach = NULL,
.go_enable = NULL,
};
/* This array maps the GPIO pins used as INTERRUPT INPUTS */
static const uint32_t g_gpioinputs[BOARD_NGPIOIN] =
{
GPIO_IN1
};
static struct rp2040gpio_dev_s g_gpin[BOARD_NGPIOIN];
#endif
#if BOARD_NGPIOINT > 0
static const struct gpio_operations_s gpint_ops =
{
.go_read = gpint_read,
.go_write = NULL,
.go_attach = gpint_attach,
.go_enable = gpint_enable,
};
/* This array maps the GPIO pins used as INTERRUPT INPUTS */
static const uint32_t g_gpiointinputs[BOARD_NGPIOINT] =
{
GPIO_IRQPIN1,
};
static struct rp2040gpint_dev_s g_gpint[BOARD_NGPIOINT];
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: gpout_read
****************************************************************************/
#if BOARD_NGPIOOUT > 0
static int gpout_read(struct gpio_dev_s *dev, bool *value)
{
struct rp2040gpio_dev_s *rp2040gpio =
(struct rp2040gpio_dev_s *)dev;
DEBUGASSERT(rp2040gpio != NULL && value != NULL);
DEBUGASSERT(rp2040gpio->id < BOARD_NGPIOOUT);
gpioinfo("Reading...\n");
*value = rp2040_gpio_get(g_gpiooutputs[rp2040gpio->id]);
return OK;
}
/****************************************************************************
* Name: gpout_write
****************************************************************************/
static int gpout_write(struct gpio_dev_s *dev, bool value)
{
struct rp2040gpio_dev_s *rp2040gpio =
(struct rp2040gpio_dev_s *)dev;
DEBUGASSERT(rp2040gpio != NULL);
DEBUGASSERT(rp2040gpio->id < BOARD_NGPIOOUT);
gpioinfo("Writing %d\n", (int)value);
rp2040_gpio_put(g_gpiooutputs[rp2040gpio->id], value);
return OK;
}
#endif
/****************************************************************************
* Name: gpin_read
****************************************************************************/
#if BOARD_NGPIOIN > 0
static int gpin_read(struct gpio_dev_s *dev, bool *value)
{
struct rp2040gpio_dev_s *rp2040gpio =
(struct rp2040gpio_dev_s *)dev;
DEBUGASSERT(rp2040gpio != NULL && value != NULL);
DEBUGASSERT(rp2040gpio->id < BOARD_NGPIOIN);
gpioinfo("Reading... pin %d\n", (int)g_gpioinputs[rp2040gpio->id]);
*value = rp2040_gpio_get(g_gpioinputs[rp2040gpio->id]);
return OK;
}
#endif
/****************************************************************************
* Name: rp2040gpio_interrupt
****************************************************************************/
#if BOARD_NGPIOINT > 0
static int rp2040gpio_interrupt(int irq, void *context, void *arg)
{
struct rp2040gpint_dev_s *rp2040gpint =
(struct rp2040gpint_dev_s *)arg;
DEBUGASSERT(rp2040gpint != NULL && rp2040gpint->callback != NULL);
gpioinfo("Interrupt! callback=%p\n", rp2040gpint->callback);
rp2040gpint->callback(&rp2040gpint->rp2040gpio.gpio,
rp2040gpint->rp2040gpio.id);
return OK;
}
/****************************************************************************
* Name: gpint_read
****************************************************************************/
static int gpint_read(struct gpio_dev_s *dev, bool *value)
{
struct rp2040gpint_dev_s *rp2040gpint =
(struct rp2040gpint_dev_s *)dev;
DEBUGASSERT(rp2040gpint != NULL && value != NULL);
DEBUGASSERT(rp2040gpint->rp2040gpio.id < BOARD_NGPIOINT);
gpioinfo("Reading int pin...\n");
*value = rp2040_gpio_get(g_gpiointinputs[rp2040gpint->rp2040gpio.id]);
return OK;
}
/****************************************************************************
* Name: gpint_attach
****************************************************************************/
static int gpint_attach(struct gpio_dev_s *dev,
pin_interrupt_t callback)
{
struct rp2040gpint_dev_s *rp2040gpint =
(struct rp2040gpint_dev_s *)dev;
int irq = g_gpiointinputs[rp2040gpint->rp2040gpio.id];
int ret;
gpioinfo("Attaching the callback\n");
/* Make sure the interrupt is disabled */
rp2040_gpio_disable_irq(irq);
ret = rp2040_gpio_irq_attach(irq,
RP2040_GPIO_INTR_EDGE_LOW,
rp2040gpio_interrupt,
&g_gpint[rp2040gpint->rp2040gpio.id]);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: gpint_attach() failed: %d\n", ret);
return ret;
}
gpioinfo("Attach %p\n", callback);
rp2040gpint->callback = callback;
return OK;
}
/****************************************************************************
* Name: gpint_enable
****************************************************************************/
static int gpint_enable(struct gpio_dev_s *dev, bool enable)
{
struct rp2040gpint_dev_s *rp2040gpint =
(struct rp2040gpint_dev_s *)dev;
int irq = g_gpiointinputs[rp2040gpint->rp2040gpio.id];
if (enable)
{
if (rp2040gpint->callback != NULL)
{
gpioinfo("Enabling the interrupt\n");
/* Configure the interrupt for rising edge */
rp2040_gpio_enable_irq(irq);
}
}
else
{
gpioinfo("Disable the interrupt\n");
rp2040_gpio_disable_irq(irq);
}
return OK;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: rp2040_dev_gpio_init
****************************************************************************/
int rp2040_dev_gpio_init(void)
{
int i;
int pincount = 0;
#if BOARD_NGPIOOUT > 0
for (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, g_gpiooutputs[i]);
/* Configure the pins that will be used as output */
rp2040_gpio_init(g_gpiooutputs[i]);
rp2040_gpio_setdir(g_gpiooutputs[i], true);
rp2040_gpio_put(g_gpiooutputs[i], false);
pincount++;
}
#endif
pincount = 0;
#if BOARD_NGPIOIN > 0
for (i = 0; i < BOARD_NGPIOIN; i++)
{
/* Setup and register the GPIO pin */
g_gpin[i].gpio.gp_pintype = GPIO_INPUT_PIN;
g_gpin[i].gpio.gp_ops = &gpin_ops;
g_gpin[i].id = i;
gpio_pin_register(&g_gpin[i].gpio, g_gpioinputs[i]);
/* Configure the pins that will be used as INPUT */
rp2040_gpio_init(g_gpioinputs[i]);
pincount++;
}
#endif
pincount = 0;
#if BOARD_NGPIOINT > 0
for (i = 0; i < BOARD_NGPIOINT; i++)
{
/* Setup and register the GPIO pin */
g_gpint[i].rp2040gpio.gpio.gp_pintype = GPIO_INTERRUPT_PIN;
g_gpint[i].rp2040gpio.gpio.gp_ops = &gpint_ops;
g_gpint[i].rp2040gpio.id = i;
gpio_pin_register(&g_gpint[i].rp2040gpio.gpio, g_gpiointinputs[i]);
/* Configure the pins that will be used as interrupt input */
rp2040_gpio_init(g_gpiointinputs[i]);
/* pull-up = false : pull-down = true */
rp2040_gpio_set_pulls(g_gpiointinputs[i], false, true);
pincount++;
}
#endif
return OK;
}
#endif /* CONFIG_DEV_GPIO && !CONFIG_GPIO_LOWER_HALF */

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boards/arm/rp2040/seeed-xiao-rp2040/src/rp2040_pico.h Normal file
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/****************************************************************************
* boards/arm/rp2040/seeed-xiao-rp2040/src/rp2040_pico.h
*
* 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.
*
****************************************************************************/
#ifndef __BOARDS_ARM_RP2040_SEEED_XIAO_SRC_RP2040_PICO_H
#define __BOARDS_ARM_RP2040_SEEED_XIAO_SRC_RP2040_PICO_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
int rp2040_bringup(void);
#ifdef CONFIG_DEV_GPIO
int rp2040_dev_gpio_init(void);
#endif
#endif /* __BOARDS_ARM_RP2040_SEEED_XIAO_SRC_RP2040_PICO_H */