1 /* 2 * Copyright (c) 2017 Simon Goldschmidt 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 25 * OF SUCH DAMAGE. 26 * 27 * This file is part of the lwIP TCP/IP stack. 28 * 29 * Author: Simon Goldschmdit <goldsimon@gmx.de> 30 * 31 */ 32 #ifndef LWIP_ARCH_SYS_ARCH_H 33 #define LWIP_ARCH_SYS_ARCH_H 34 35 #include "lwip/opt.h" 36 #include "lwip/arch.h" 37 38 /** This is returned by _fromisr() sys functions to tell the outermost function 39 * that a higher priority task was woken and the scheduler needs to be invoked. 40 */ 41 #define ERR_NEED_SCHED 123 42 43 /* This port includes FreeRTOS headers in sys_arch.c only. 44 * FreeRTOS uses pointers as object types. We use wrapper structs instead of 45 * void pointers directly to get a tiny bit of type safety. 46 */ 47 48 void sys_arch_msleep(u32_t delay_ms); 49 #define sys_msleep(ms) sys_arch_msleep(ms) 50 51 #if SYS_LIGHTWEIGHT_PROT 52 typedef u32_t sys_prot_t; 53 #endif /* SYS_LIGHTWEIGHT_PROT */ 54 55 #if !LWIP_COMPAT_MUTEX 56 struct _sys_mut { 57 void *mut; 58 }; 59 typedef struct _sys_mut sys_mutex_t; 60 #define sys_mutex_valid_val(mutex) ((mutex).mut != NULL) 61 #define sys_mutex_valid(mutex) (((mutex) != NULL) && sys_mutex_valid_val(*(mutex))) 62 #define sys_mutex_set_invalid(mutex) ((mutex)->mut = NULL) 63 #endif /* !LWIP_COMPAT_MUTEX */ 64 65 struct _sys_sem { 66 void *sem; 67 }; 68 typedef struct _sys_sem sys_sem_t; 69 #define sys_sem_valid_val(sema) ((sema).sem != NULL) 70 #define sys_sem_valid(sema) (((sema) != NULL) && sys_sem_valid_val(*(sema))) 71 #define sys_sem_set_invalid(sema) ((sema)->sem = NULL) 72 73 struct _sys_mbox { 74 void *mbx; 75 }; 76 typedef struct _sys_mbox sys_mbox_t; 77 #define sys_mbox_valid_val(mbox) ((mbox).mbx != NULL) 78 #define sys_mbox_valid(mbox) (((mbox) != NULL) && sys_mbox_valid_val(*(mbox))) 79 #define sys_mbox_set_invalid(mbox) ((mbox)->mbx = NULL) 80 81 struct _sys_thread { 82 void *thread_handle; 83 }; 84 typedef struct _sys_thread sys_thread_t; 85 86 #if LWIP_NETCONN_SEM_PER_THREAD 87 sys_sem_t* sys_arch_netconn_sem_get(void); 88 void sys_arch_netconn_sem_alloc(void); 89 void sys_arch_netconn_sem_free(void); 90 #define LWIP_NETCONN_THREAD_SEM_GET() sys_arch_netconn_sem_get() 91 #define LWIP_NETCONN_THREAD_SEM_ALLOC() sys_arch_netconn_sem_alloc() 92 #define LWIP_NETCONN_THREAD_SEM_FREE() sys_arch_netconn_sem_free() 93 #endif /* LWIP_NETCONN_SEM_PER_THREAD */ 94 95 #endif /* LWIP_ARCH_SYS_ARCH_H */ 96