[457] | 1 | /*
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| 2 | * Copyright (c) 2017 Simon Goldschmidt
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without modification,
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| 6 | * are permitted provided that the following conditions are met:
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| 7 | *
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| 8 | * 1. Redistributions of source code must retain the above copyright notice,
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| 9 | * this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 11 | * this list of conditions and the following disclaimer in the documentation
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| 12 | * and/or other materials provided with the distribution.
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| 13 | * 3. The name of the author may not be used to endorse or promote products
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| 14 | * derived from this software without specific prior written permission.
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| 15 | *
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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| 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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| 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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| 25 | * OF SUCH DAMAGE.
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| 26 | *
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| 27 | * This file is part of the lwIP TCP/IP stack.
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| 28 | *
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| 29 | * Author: Simon Goldschmdit <goldsimon@gmx.de>
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| 30 | *
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| 31 | */
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| 32 | #ifndef LWIP_ARCH_SYS_ARCH_H
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| 33 | #define LWIP_ARCH_SYS_ARCH_H
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| 34 |
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| 35 | #include "lwip/opt.h"
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| 36 | #include "lwip/arch.h"
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| 37 |
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| 38 | /** This is returned by _fromisr() sys functions to tell the outermost function
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| 39 | * that a higher priority task was woken and the scheduler needs to be invoked.
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| 40 | */
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| 41 | #define ERR_NEED_SCHED 123
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| 42 |
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| 43 | /* This port includes FreeRTOS headers in sys_arch.c only.
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| 44 | * FreeRTOS uses pointers as object types. We use wrapper structs instead of
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| 45 | * void pointers directly to get a tiny bit of type safety.
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| 46 | */
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| 47 |
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| 48 | void sys_arch_msleep(u32_t delay_ms);
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| 49 | #define sys_msleep(ms) sys_arch_msleep(ms)
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| 50 |
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| 51 | #if SYS_LIGHTWEIGHT_PROT
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| 52 | typedef u32_t sys_prot_t;
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| 53 | #endif /* SYS_LIGHTWEIGHT_PROT */
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| 54 |
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| 55 | #if !LWIP_COMPAT_MUTEX
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| 56 | struct _sys_mut {
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| 57 | void *mut;
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| 58 | };
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| 59 | typedef struct _sys_mut sys_mutex_t;
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| 60 | #define sys_mutex_valid_val(mutex) ((mutex).mut != NULL)
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| 61 | #define sys_mutex_valid(mutex) (((mutex) != NULL) && sys_mutex_valid_val(*(mutex)))
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| 62 | #define sys_mutex_set_invalid(mutex) ((mutex)->mut = NULL)
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| 63 | #endif /* !LWIP_COMPAT_MUTEX */
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| 64 |
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| 65 | struct _sys_sem {
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| 66 | void *sem;
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| 67 | };
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| 68 | typedef struct _sys_sem sys_sem_t;
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| 69 | #define sys_sem_valid_val(sema) ((sema).sem != NULL)
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| 70 | #define sys_sem_valid(sema) (((sema) != NULL) && sys_sem_valid_val(*(sema)))
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| 71 | #define sys_sem_set_invalid(sema) ((sema)->sem = NULL)
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| 72 |
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| 73 | struct _sys_mbox {
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| 74 | void *mbx;
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| 75 | };
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| 76 | typedef struct _sys_mbox sys_mbox_t;
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| 77 | #define sys_mbox_valid_val(mbox) ((mbox).mbx != NULL)
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| 78 | #define sys_mbox_valid(mbox) (((mbox) != NULL) && sys_mbox_valid_val(*(mbox)))
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| 79 | #define sys_mbox_set_invalid(mbox) ((mbox)->mbx = NULL)
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| 80 |
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| 81 | struct _sys_thread {
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| 82 | void *thread_handle;
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| 83 | };
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| 84 | typedef struct _sys_thread sys_thread_t;
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| 85 |
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| 86 | #if LWIP_NETCONN_SEM_PER_THREAD
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| 87 | sys_sem_t* sys_arch_netconn_sem_get(void);
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| 88 | void sys_arch_netconn_sem_alloc(void);
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| 89 | void sys_arch_netconn_sem_free(void);
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| 90 | #define LWIP_NETCONN_THREAD_SEM_GET() sys_arch_netconn_sem_get()
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| 91 | #define LWIP_NETCONN_THREAD_SEM_ALLOC() sys_arch_netconn_sem_alloc()
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| 92 | #define LWIP_NETCONN_THREAD_SEM_FREE() sys_arch_netconn_sem_free()
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| 93 | #endif /* LWIP_NETCONN_SEM_PER_THREAD */
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| 94 |
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| 95 | #endif /* LWIP_ARCH_SYS_ARCH_H */
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