boards/nucleo-f446re: add SocketCAN example

boards/arm/stm32/nucleo-f446re/configs/cansock/defconfig

@@ -0,0 +1,71 @@
+#
+# 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_FPU is not set
+# CONFIG_NET_ETHERNET is not set
+# CONFIG_NET_IPv4 is not set
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+# CONFIG_NSH_CMDPARMS is not set
+# CONFIG_STM32_FLASH_PREFETCH is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="nucleo-f446re"
+CONFIG_ARCH_BOARD_NUCLEO_F446RE=y
+CONFIG_ARCH_BUTTONS=y
+CONFIG_ARCH_CHIP="stm32"
+CONFIG_ARCH_CHIP_STM32=y
+CONFIG_ARCH_CHIP_STM32F446R=y
+CONFIG_ARCH_INTERRUPTSTACK=2048
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_BOARD_LATE_INITIALIZE=y
+CONFIG_BOARD_LOOPSPERMSEC=8499
+CONFIG_BUILTIN=y
+CONFIG_CAN_EXTID=y
+CONFIG_DEBUG_FULLOPT=y
+CONFIG_DEBUG_SYMBOLS=y
+CONFIG_FS_PROCFS=y
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_INTELHEX_BINARY=y
+CONFIG_IOB_BUFSIZE=16
+CONFIG_IOB_NBUFFERS=1024
+CONFIG_NET=y
+CONFIG_NETDEVICES=y
+CONFIG_NETDEV_IFINDEX=y
+CONFIG_NETDEV_LATEINIT=y
+CONFIG_NET_CAN=y
+CONFIG_NET_SOCKOPTS=y
+CONFIG_NET_STATISTICS=y
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_DISABLE_IFUPDOWN=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_RAM_SIZE=131072
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_LPWORK=y
+CONFIG_SCHED_LPWORKPRIORITY=176
+CONFIG_SCHED_WAITPID=y
+CONFIG_SDCLONE_DISABLE=y
+CONFIG_SPI=y
+CONFIG_START_DAY=14
+CONFIG_START_MONTH=10
+CONFIG_START_YEAR=2014
+CONFIG_STM32_CAN1=y
+CONFIG_STM32_CAN_SOCKET=y
+CONFIG_STM32_CAN_TSEG1=13
+CONFIG_STM32_CAN_TSEG2=2
+CONFIG_STM32_CRC=y
+CONFIG_STM32_JTAG_SW_ENABLE=y
+CONFIG_STM32_OTGFS=y
+CONFIG_STM32_PWR=y
+CONFIG_STM32_USART2=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_USART2_SERIAL_CONSOLE=y

boards/arm/stm32/nucleo-f446re/src/Make.defs

@@ -45,9 +45,14 @@ endif
 endif
 endif
 
+ifeq ($(CONFIG_STM32_CAN),y)
 ifeq ($(CONFIG_STM32_CAN_CHARDRIVER),y)
 CSRCS += stm32_can.c
 endif
+ifeq ($(CONFIG_STM32_CAN_SOCKET),y)
+CSRCS += stm32_cansock.c
+endif
+endif
 
 ifeq ($(CONFIG_STM32_PWM),y)
 CSRCS += stm32_pwm.c

boards/arm/stm32/nucleo-f446re/src/nucleo-f446re.h

@@ -324,6 +324,18 @@ int stm32_adc_setup(void);
 int stm32_can_setup(void);
 #endif
 
+/****************************************************************************
+ * Name: stm32_cansock_setup
+ *
+ * Description:
+ *  Initialize CAN socket interface
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_STM32_CAN_SOCKET
+int stm32_cansock_setup(void);
+#endif
+
 /****************************************************************************
  * Name: board_ajoy_initialize
  *

boards/arm/stm32/nucleo-f446re/src/stm32_bringup.c

@@ -161,6 +161,16 @@ int stm32_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_STM32_CAN_SOCKET
+  /* Initialize CAN socket interface */
+
+  ret = stm32_cansock_setup();
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: stm32_cansock_setup failed: %d\n", ret);
+    }
+#endif
+
 #ifdef CONFIG_VIDEO_FB
   /* Initialize and register the framebuffer driver */
 

boards/arm/stm32/nucleo-f446re/src/stm32_cansock.c

@@ -0,0 +1,83 @@
+/****************************************************************************
+ * boards/arm/stm32/nucleo-f446re/src/stm32_cansock.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 "stm32_can.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+#if !defined(CONFIG_STM32_CAN1) && !defined(CONFIG_STM32_CAN2)
+#  error "No CAN is enable. Please eneable at least one CAN device"
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: stm32_cansock_setup
+ *
+ * Description:
+ *  Initialize CAN socket interface
+ *
+ ****************************************************************************/
+
+int stm32_cansock_setup(void)
+{
+  int ret = OK;
+
+  UNUSED(ret);
+
+#ifdef CONFIG_STM32_CAN1
+  /* Call stm32_caninitialize() to get an instance of the CAN interface */
+
+  ret = stm32_cansockinitialize(1);
+  if (ret < 0)
+    {
+      canerr("ERROR:  Failed to get CAN interface %d\n", ret);
+      goto errout;
+    }
+#endif
+
+#ifdef CONFIG_STM32_CAN2
+  /* Call stm32_caninitialize() to get an instance of the CAN interface */
+
+  ret = stm32_cansockinitialize(2);
+  if (ret < 0)
+    {
+      canerr("ERROR:  Failed to get CAN interface %d\n", ret);
+      goto errout;
+    }
+#endif
+
+errout:
+  return ret;
+}