src/rp2_common/pico_lwip/include/arch/cc.h

/*
 * Copyright (c) 2001-2003 Swedish Institute of Computer Science.
 * 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: Adam Dunkels <adam@sics.se>
 *
 */
#ifndef __CC_H__
#define __CC_H__

#include <sys/time.h>

#ifndef PICO_LWIP_CUSTOM_LOCK_TCPIP_CORE
#define PICO_LWIP_CUSTOM_LOCK_TCPIP_CORE 1
#endif

#if NO_SYS
// todo really we should just not allow SYS_LIGHTWEIGHT_PROT for nosys mode (it doesn't do anything anyway)
typedef int sys_prot_t;
#elif PICO_LWIP_CUSTOM_LOCK_TCPIP_CORE
void pico_lwip_custom_lock_tcpip_core(void);
void pico_lwip_custom_unlock_tcpip_core(void);
#define LOCK_TCPIP_CORE() pico_lwip_custom_lock_tcpip_core()
#define UNLOCK_TCPIP_CORE() pico_lwip_custom_unlock_tcpip_core()
#endif

/* define compiler specific symbols */
#if defined (__ICCARM__)

#define PACK_STRUCT_BEGIN
#define PACK_STRUCT_STRUCT
#define PACK_STRUCT_END
#define PACK_STRUCT_FIELD(x) x
#define PACK_STRUCT_USE_INCLUDES

#elif defined (__CC_ARM)

#define PACK_STRUCT_BEGIN __packed
#define PACK_STRUCT_STRUCT
#define PACK_STRUCT_END
#define PACK_STRUCT_FIELD(x) x

#elif defined (__GNUC__)

#define PACK_STRUCT_BEGIN
#define PACK_STRUCT_STRUCT __attribute__ ((__packed__))
#define PACK_STRUCT_END
#define PACK_STRUCT_FIELD(x) x

#elif defined (__TASKING__)

#define PACK_STRUCT_BEGIN
#define PACK_STRUCT_STRUCT
#define PACK_STRUCT_END
#define PACK_STRUCT_FIELD(x) x

#endif

#ifndef LWIP_PLATFORM_ASSERT
#include "pico.h"
#define LWIP_PLATFORM_ASSERT(x) panic(x)
#endif

#ifndef LWIP_RAND
#include "pico/rand.h"
// Use the pico_rand library which goes to reasonable lengths to try to provide good entropy
#define LWIP_RAND() get_rand_32()
#endif
#endif /* __CC_H__ */