LwIP 2.2.1在STM32F407VET6平台 移植

ThirdParty/lwip-2.2.1/contrib/ports/freertos/include/arch/sys_arch.h

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+/*
+ * Copyright (c) 2017 Simon Goldschmidt
+ * All rights reserved.
+ *
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+ *
+ * This file is part of the lwIP TCP/IP stack.
+ *
+ * Author: Simon Goldschmdit <goldsimon@gmx.de>
+ *
+ */
+#ifndef LWIP_ARCH_SYS_ARCH_H
+#define LWIP_ARCH_SYS_ARCH_H
+
+#include "lwip/opt.h"
+#include "lwip/arch.h"
+
+/** This is returned by _fromisr() sys functions to tell the outermost function
+ * that a higher priority task was woken and the scheduler needs to be invoked.
+ */
+#define ERR_NEED_SCHED 123
+
+/* This port includes FreeRTOS headers in sys_arch.c only.
+ *  FreeRTOS uses pointers as object types. We use wrapper structs instead of
+ * void pointers directly to get a tiny bit of type safety.
+ */
+
+void sys_arch_msleep(u32_t delay_ms);
+#define sys_msleep(ms) sys_arch_msleep(ms)
+
+#if SYS_LIGHTWEIGHT_PROT
+typedef u32_t sys_prot_t;
+#endif /* SYS_LIGHTWEIGHT_PROT */
+
+#if !LWIP_COMPAT_MUTEX
+struct _sys_mut {
+  void *mut;
+};
+typedef struct _sys_mut sys_mutex_t;
+#define sys_mutex_valid_val(mutex)   ((mutex).mut != NULL)
+#define sys_mutex_valid(mutex)       (((mutex) != NULL) && sys_mutex_valid_val(*(mutex)))
+#define sys_mutex_set_invalid(mutex) ((mutex)->mut = NULL)
+#endif /* !LWIP_COMPAT_MUTEX */
+
+struct _sys_sem {
+  void *sem;
+};
+typedef struct _sys_sem sys_sem_t;
+#define sys_sem_valid_val(sema)   ((sema).sem != NULL)
+#define sys_sem_valid(sema)       (((sema) != NULL) && sys_sem_valid_val(*(sema)))
+#define sys_sem_set_invalid(sema) ((sema)->sem = NULL)
+
+struct _sys_mbox {
+  void *mbx;
+};
+typedef struct _sys_mbox sys_mbox_t;
+#define sys_mbox_valid_val(mbox)   ((mbox).mbx != NULL)
+#define sys_mbox_valid(mbox)       (((mbox) != NULL) && sys_mbox_valid_val(*(mbox)))
+#define sys_mbox_set_invalid(mbox) ((mbox)->mbx = NULL)
+
+struct _sys_thread {
+  void *thread_handle;
+};
+typedef struct _sys_thread sys_thread_t;
+
+#if LWIP_NETCONN_SEM_PER_THREAD
+sys_sem_t* sys_arch_netconn_sem_get(void);
+void sys_arch_netconn_sem_alloc(void);
+void sys_arch_netconn_sem_free(void);
+#define LWIP_NETCONN_THREAD_SEM_GET()   sys_arch_netconn_sem_get()
+#define LWIP_NETCONN_THREAD_SEM_ALLOC() sys_arch_netconn_sem_alloc()
+#define LWIP_NETCONN_THREAD_SEM_FREE()  sys_arch_netconn_sem_free()
+#endif /* LWIP_NETCONN_SEM_PER_THREAD */
+
+#endif /* LWIP_ARCH_SYS_ARCH_H */