[bsp][raspberry-pico]add gpio drivers

bsp/raspberry-pico/.config

@@ -123,7 +123,7 @@ CONFIG_RT_SERIAL_RB_BUFSZ=64
 # CONFIG_RT_USING_CPUTIME is not set
 # CONFIG_RT_USING_I2C is not set
 # CONFIG_RT_USING_PHY is not set
-# CONFIG_RT_USING_PIN is not set
+CONFIG_RT_USING_PIN=y
 # CONFIG_RT_USING_ADC is not set
 # CONFIG_RT_USING_DAC is not set
 # CONFIG_RT_USING_PWM is not set
@@ -274,7 +274,6 @@ CONFIG_RT_LIBC_USING_TIME=y
 # CONFIG_PKG_USING_PDULIB is not set
 # CONFIG_PKG_USING_BTSTACK is not set
 # CONFIG_PKG_USING_LORAWAN_ED_STACK is not set
-# CONFIG_PKG_USING_WAYZ_IOTKIT is not set
 
 #
 # security packages
@@ -314,8 +313,6 @@ CONFIG_RT_LIBC_USING_TIME=y
 # CONFIG_PKG_USING_RDB is not set
 # CONFIG_PKG_USING_QRCODE is not set
 # CONFIG_PKG_USING_ULOG_EASYFLASH is not set
-# CONFIG_PKG_USING_ULOG_FILE is not set
-# CONFIG_PKG_USING_LOGMGR is not set
 # CONFIG_PKG_USING_ADBD is not set
 # CONFIG_PKG_USING_COREMARK is not set
 # CONFIG_PKG_USING_DHRYSTONE is not set
@@ -328,11 +325,6 @@ CONFIG_RT_LIBC_USING_TIME=y
 # CONFIG_PKG_USING_URLENCODE is not set
 # CONFIG_PKG_USING_UMCN is not set
 # CONFIG_PKG_USING_LWRB2RTT is not set
-# CONFIG_PKG_USING_CPU_USAGE is not set
-# CONFIG_PKG_USING_GBK2UTF8 is not set
-# CONFIG_PKG_USING_VCONSOLE is not set
-# CONFIG_PKG_USING_KDB is not set
-# CONFIG_PKG_USING_WAMR is not set
 
 #
 # system packages
@@ -370,12 +362,6 @@ CONFIG_RT_LIBC_USING_TIME=y
 # CONFIG_PKG_USING_UC_COMMON is not set
 # CONFIG_PKG_USING_UC_MODBUS is not set
 # CONFIG_PKG_USING_PPOOL is not set
-# CONFIG_PKG_USING_OPENAMP is not set
-# CONFIG_PKG_USING_RT_PRINTF is not set
-# CONFIG_PKG_USING_RT_MEMCPY_CM is not set
-# CONFIG_PKG_USING_QFPLIB_M0_FULL is not set
-# CONFIG_PKG_USING_QFPLIB_M0_TINY is not set
-# CONFIG_PKG_USING_QFPLIB_M3 is not set
 
 #
 # peripheral libraries and drivers
@@ -384,7 +370,6 @@ CONFIG_RT_LIBC_USING_TIME=y
 # CONFIG_PKG_USING_REALTEK_AMEBA is not set
 # CONFIG_PKG_USING_SHT2X is not set
 # CONFIG_PKG_USING_SHT3X is not set
-# CONFIG_PKG_USING_AS7341 is not set
 # CONFIG_PKG_USING_STM32_SDIO is not set
 # CONFIG_PKG_USING_ICM20608 is not set
 # CONFIG_PKG_USING_U8G2 is not set
@@ -434,10 +419,6 @@ CONFIG_RT_LIBC_USING_TIME=y
 # CONFIG_PKG_USING_SSD1306 is not set
 # CONFIG_PKG_USING_QKEY is not set
 # CONFIG_PKG_USING_RS485 is not set
-# CONFIG_PKG_USING_NES is not set
-# CONFIG_PKG_USING_VIRTUAL_SENSOR is not set
-# CONFIG_PKG_USING_VDEVICE is not set
-# CONFIG_PKG_USING_SGM706 is not set
 
 #
 # miscellaneous packages
@@ -447,7 +428,6 @@ CONFIG_RT_LIBC_USING_TIME=y
 # CONFIG_PKG_USING_FASTLZ is not set
 # CONFIG_PKG_USING_MINILZO is not set
 # CONFIG_PKG_USING_QUICKLZ is not set
-# CONFIG_PKG_USING_LZMA is not set
 # CONFIG_PKG_USING_MULTIBUTTON is not set
 # CONFIG_PKG_USING_FLEXIBLE_BUTTON is not set
 # CONFIG_PKG_USING_CANFESTIVAL is not set
@@ -483,11 +463,9 @@ CONFIG_RT_LIBC_USING_TIME=y
 #
 # CONFIG_PKG_USING_THREES is not set
 # CONFIG_PKG_USING_2048 is not set
-# CONFIG_PKG_USING_SNAKE is not set
 # CONFIG_PKG_USING_TETRIS is not set
 # CONFIG_PKG_USING_LWGPS is not set
 # CONFIG_PKG_USING_TENSORFLOWLITEMICRO is not set
-# CONFIG_PKG_USING_STATE_MACHINE is not set
 
 #
 # Privated Packages of RealThread
@@ -525,10 +503,6 @@ CONFIG_RT_LIBC_USING_TIME=y
 # CONFIG_PKG_USING_EMQ is not set
 # CONFIG_PKG_USING_CFGM is not set
 # CONFIG_PKG_USING_RT_CMSIS_DAP is not set
+# CONFIG_PKG_USING_VIRTUAL_DEVICE is not set
 # CONFIG_PKG_USING_SMODULE is not set
-# CONFIG_PKG_USING_SNFD is not set
-# CONFIG_PKG_USING_UDBD is not set
-# CONFIG_PKG_USING_BENCHMARK is not set
-# CONFIG_PKG_USING_UBJSON is not set
-# CONFIG_PKG_USING_DATATYPE is not set
 CONFIG_SOC_RP2040=y

bsp/raspberry-pico/README.md

@@ -1,6 +1,37 @@
 # Raspberry PICO
 
-## Build
+## Introduction
+
+**Raspberry Pi Pico is a low-cost, high-performance microcontroller board with flexible digital interfaces.**
+
+**Key features include:**
+
+- RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom
+- Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz
+- 264KB of SRAM, and 2MB of on-board Flash memory
+- Castellated module allows soldering direct to carrier boards
+- USB 1.1 with device and host support
+- Low-power sleep and dormant modes
+
+- Drag-and-drop programming using mass storage over USB
+- 26 × multi-function GPIO pins
+- 2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 16 × controllable PWM channels
+- Accurate clock and timer on-chip
+- Temperature sensor
+- Accelerated floating-point libraries on-chip
+- 8 × Programmable I/O (PIO) state machines for custom peripheral support
+
+
+
+![Pico-R3-Pinout](figures/Pico-R3-Pinout.svg)
+
+## Supported compiler
+
+Support GCC 6 and above compilers.
+
+## Program firmware
+
+### Step 1: build
 
 ```
 scons -c
@@ -9,16 +40,20 @@ scons
 
 **gcc version >= 6.x.x**
 
-## Flash
+### Step 2: flash
+
+Run the following command in the linux environment.
 
 ```
-./Libraries/generated/elf2uf2 rtthread-pico.elf rtthread-pico.uf2
+./libraries/generated/elf2uf2 rtthread-pico.elf rtthread-pico.uf2
 ```
 
 - Copy the rtthread-pico.uf2 file to the "RPI-RP2" disk
 - Then led blink.
 
-## Run
+## Running Result
+
+The output information on serial port should be like this:
 
 ```
  \ | /
@@ -29,3 +64,16 @@ Hello, RT-Thread!
 msh >
 ```
 
+## Peripheral Condition
+
+| Drive | Support | Remark |
+| ----- | ------- | ------ |
+| UART  | Support | UART0  |
+| GPIO  | Support | 0-29   |
+| I2C   | -       | -      |
+| RTC   | -       | -      |
+| SDIO  | -       | -      |
+| SPI   | -       | -      |
+| TIMER | -       | -      |
+| WDT   | -       | -      |
+

bsp/raspberry-pico/SConstruct

@@ -27,11 +27,5 @@ Export('rtconfig')
 # prepare building environment
 objs = PrepareBuilding(env, RTT_ROOT)
 
-#if GetDepend('RT_USING_RTGUI'):
-#    objs = objs + SConscript(RTT_ROOT + '/examples/gui/SConscript', variant_dir='build/examples/gui', duplicate=0)
-
-# libc testsuite 
-# objs = objs + SConscript(RTT_ROOT + '/examples/libc/SConscript', variant_dir='build/examples/libc', duplicate=0)
-
 # make a building
 DoBuilding(TARGET, objs)

bsp/raspberry-pico/applications/main.c

@@ -5,20 +5,21 @@
  */
 
 #include <rtthread.h>
+#include <rtdevice.h>
 
-#include "board.h"
+#define LED_PIN 25
-
-int main() {
-    const uint LED_PIN = 25;
 
+int main(void)
+{
     rt_kprintf("Hello, RT-Thread!\n");
 
-    gpio_init(LED_PIN);
+    rt_pin_mode(LED_PIN, PIN_MODE_OUTPUT);
-    gpio_set_dir(LED_PIN, GPIO_OUT);
+
-    while (true) {
+    while (1)
-        gpio_put(LED_PIN, 1);
+    {
+        rt_pin_write(LED_PIN, 1);
         rt_thread_mdelay(1000);
-        gpio_put(LED_PIN, 0);
+        rt_pin_write(LED_PIN, 0);
         rt_thread_mdelay(1000);
     }
 }

bsp/raspberry-pico/drivers/drv_gpio.c

@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author         Notes
+ * 2019-07-29     zdzn           first version
+ */
+
+#include "drv_gpio.h"
+
+static void pico_pin_mode(struct rt_device *dev, rt_base_t pin, rt_base_t mode)
+{
+    RT_ASSERT((0 <= pin) && (pin < N_GPIOS));
+
+    gpio_init(pin);
+    switch (mode)
+    {
+    case PIN_MODE_OUTPUT:
+        gpio_set_dir(pin, GPIO_OUT);
+        break;
+    case PIN_MODE_INPUT:
+        gpio_set_dir(pin, GPIO_IN);
+        break;
+    case PIN_MODE_INPUT_PULLUP:
+        gpio_pull_up(pin);
+        break;
+    case PIN_MODE_INPUT_PULLDOWN:
+        gpio_pull_down(pin);
+        break;
+    case PIN_MODE_OUTPUT_OD:
+        gpio_disable_pulls(pin);
+        break;
+    }
+}
+
+static void pico_pin_write(struct rt_device *dev, rt_base_t pin, rt_base_t value)
+{
+    RT_ASSERT((0 <= pin) && (pin < N_GPIOS));
+    gpio_put(pin, value);
+}
+
+static int pico_pin_read(struct rt_device *device, rt_base_t pin)
+{
+    RT_ASSERT((0 <= pin) && (pin < N_GPIOS));
+    return (gpio_get(pin)? PIN_HIGH : PIN_LOW);
+}
+
+static const struct rt_pin_ops ops =
+{
+    pico_pin_mode,
+    pico_pin_write,
+    pico_pin_read,
+    RT_NULL,
+    RT_NULL,
+    RT_NULL,
+    RT_NULL,
+};
+
+int rt_hw_gpio_init(void)
+{
+    rt_device_pin_register("gpio", &ops, RT_NULL);
+
+    return 0;
+}
+INIT_DEVICE_EXPORT(rt_hw_gpio_init);

bsp/raspberry-pico/drivers/drv_gpio.h

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author         Notes
+ * 2019-07-29     zdzn           first version
+ */
+
+#ifndef __DRV_GPIO_H__
+#define __DRV_GPIO_H__
+
+#include <rtdevice.h>
+#include <rtthread.h>
+
+#include "board.h"
+
+int rt_hw_gpio_init(void);
+
+#endif /* __DRV_GPIO_H__ */

bsp/raspberry-pico/libraries/SConscript

@@ -55,19 +55,6 @@ pico-sdk/src/rp2_common/pico_standard_link/crt0.S
 generated/bs2_default_padded_checksummed.S
 """)
 
-# # starupt scripts for STM32F2xx
-# startup_scripts = 'startup_stm32f2xx.s'
-
-# # add for startup script
-# if rtconfig.CROSS_TOOL == 'gcc':
-#     src = src + ['CMSIS/CM3/DeviceSupport/ST/STM32F2xx/startup/gcc_ride7/' + startup_scripts]
-# elif rtconfig.CROSS_TOOL == 'keil':
-#     src = src + ['CMSIS/CM3/DeviceSupport/ST/STM32F2xx/startup/arm/' + startup_scripts]
-# elif rtconfig.CROSS_TOOL == 'iar':
-#     src = src + ['CMSIS/CM3/DeviceSupport/ST/STM32F2xx/startup/iar/' + startup_scripts]
-
-# /home/henson/Documents/rasp-pico/pico/pico-examples/build/generated/pico_base 
-
 path = [
     cwd + '/pico-sdk/src/common/pico_stdlib/include',
     cwd + '/pico-sdk/src/rp2_common/hardware_gpio/include',
@@ -106,14 +93,6 @@ path = [
     cwd + '/generated/pico_base'
     ]
 
-# path += [cwd + '/CMSIS/CM3/CoreSupport',
-# cwd + '/CMSIS/Include']
-
-# if GetDepend('RT_USING_LWIP') == True:
-# 	src = src + ['STM32F2x7_ETH_Driver/src/stm32f2x7_eth.c']
-# 	path = path + [cwd + '/STM32F2x7_ETH_Driver/inc']
-
-
 CPPDEFINES = [
     'PICO_NO_BINARY_INFO',
     'PICO_NO_PROGRAM_INFO',

bsp/raspberry-pico/rtconfig.h

@@ -80,6 +80,7 @@
 #define RT_USING_SERIAL
 #define RT_SERIAL_USING_DMA
 #define RT_SERIAL_RB_BUFSZ 64
+#define RT_USING_PIN
 
 /* Using USB */