nuclei: optimize drivers support

Signed-off-by: Huaqi Fang <578567190@qq.com>

bsp/nuclei/gd32vf103_rvstar/SConstruct

@@ -32,13 +32,29 @@ env['ASCOM'] = env['ASPPCOM']
 Export('RTT_ROOT')
 Export('rtconfig')
 
+SDK_ROOT = os.path.abspath('./')
+
+if os.path.exists(SDK_ROOT + '/libraries'):
+    libraries_path_prefix = SDK_ROOT + '/libraries'
+else:
+    libraries_path_prefix = os.path.dirname(SDK_ROOT) + '/libraries'
+
+SDK_LIB = libraries_path_prefix
+Export('SDK_LIB')
+
 GDB = rtconfig.GDB
 
 # prepare building environment
 objs = PrepareBuilding(env, RTT_ROOT)
 
+bsp_library_type = 'gd32vf103'
+rtconfig.BSP_LIBRARY_TYPE = bsp_library_type
+
 openocd_cfg = rtconfig.NUCLEI_SDK_OPENOCD_CFG.replace('\\', '/')
 
+# include hal drivers
+objs.extend(SConscript(os.path.join(libraries_path_prefix, bsp_library_type, 'HAL_Drivers', 'SConscript')))
+
 # make a building
 DoBuilding(TARGET, objs)
 

bsp/nuclei/gd32vf103_rvstar/board/Kconfig

@@ -37,6 +37,7 @@ menu "On-chip Peripheral Drivers"
                 bool "Enable UART4"
                 default n
         endif
+
 endmenu
 
 menu "Board extended module Drivers"

bsp/nuclei/gd32vf103_rvstar/drivers/SConscript

@@ -1,19 +0,0 @@
-# RT-Thread building script for component
-
-from building import *
-
-cwd     = GetCurrentDir()
-src     = Split('''
-drv_usart.c
-''')
-CPPPATH = [cwd]
-
-if GetDepend('RT_USING_PIN'):
-    src += ['drv_gpio.c']
-
-if GetDepend('RT_USING_I2C'):
-    src += ['drv_i2c.c']
-
-group = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH)
-
-Return('group')

bsp/nuclei/libraries/gd32vf103/HAL_Drivers/SConscript

@@ -0,0 +1,30 @@
+Import('RTT_ROOT')
+Import('rtconfig')
+from building import *
+
+cwd = GetCurrentDir()
+
+# add the general drivers.
+src = Split("""
+""")
+
+if GetDepend(['RT_USING_PIN']):
+    src += ['drv_gpio.c']
+
+if GetDepend(['RT_USING_SERIAL']):
+    src += ['drv_usart.c']
+
+if GetDepend(['RT_USING_HWTIMER']):
+    src += ['drv_hwtimer.c']
+
+if GetDepend(['RT_USING_PWM']):
+    src += ['drv_pwm.c']
+
+if GetDepend(['RT_USING_SPI']):
+    src += ['drv_spi.c']
+
+path =  [cwd]
+
+group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path)
+
+Return('group')

bsp/nuclei/libraries/gd32vf103/HAL_Drivers/drv_config.h

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author            Notes
+ * 2020-04-08     Huaqi             first version
+ */
+ 
+#ifndef __DRV_CONFIG_H__
+#define __DRV_CONFIG_H__
+
+#include <board.h>
+#include <rtthread.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

bsp/nuclei/libraries/gd32vf103/HAL_Drivers/drv_usart.h

@@ -3,7 +3,7 @@
 
 #include <rtthread.h>
 #include <rtdevice.h>
-#include "board.h"
+#include <drv_config.h>
 
 /* gd32 config class */
 struct gd32_uart_config