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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