00001 /* Copyright (c) 2012 Axel Wachtler 00002 All rights reserved. 00003 00004 Redistribution and use in source and binary forms, with or without 00005 modification, are permitted provided that the following conditions 00006 are met: 00007 00008 * Redistributions of source code must retain the above copyright 00009 notice, this list of conditions and the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright 00011 notice, this list of conditions and the following disclaimer in the 00012 documentation and/or other materials provided with the distribution. 00013 * Neither the name of the authors nor the names of its contributors 00014 may be used to endorse or promote products derived from this software 00015 without specific prior written permission. 00016 00017 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00018 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00021 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00022 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00023 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00024 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00025 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00026 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00027 POSSIBILITY OF SUCH DAMAGE. */ 00028 00029 #ifndef WUART_H 00030 #define WUART_H 00031 00032 /* === includes ============================================================ */ 00033 #include "p2p_protocol.h" 00034 00035 /* === macros ============================================================== */ 00037 #define CALC_PEER_ADDRESS(x) (((x) == 0xffff) ? (x) : (x) ^ 1) 00038 00040 //#define PAYLD_SIZE (PROT_WUART_PAYLD_SIZE) 00041 00043 #define CRC_SIZE (sizeof(crc_t)) 00044 00046 #define EOL "\n\r" 00047 00048 #ifndef UART_FRAME_SIZE 00049 # define UART_FRAME_SIZE (MAX_FRAME_SIZE) 00050 #endif 00051 00052 #ifndef DEFAULT_RADIO_CHANNEL 00053 00054 # if defined(TRX_SUPPORTS_BAND_800) 00055 # define DEFAULT_RADIO_CHANNEL (0) 00056 # elif defined(TRX_SUPPORTS_BAND_900) && defined(REGION_USA) 00057 # define DEFAULT_RADIO_CHANNEL (5) 00058 # elif defined(TRX_SUPPORTS_BAND_2400) 00059 # define DEFAULT_RADIO_CHANNEL (17) 00060 # else 00061 # error "No supported frequency band found" 00062 # endif 00063 #endif 00064 00065 /* === types =============================================================== */ 00066 00068 typedef uint16_t crc_t; 00069 00071 typedef struct 00072 { 00073 uint8_t start; 00074 uint8_t end; 00075 union 00076 { 00077 uint8_t buf[UART_FRAME_SIZE]; 00078 p2p_wuart_data_t hdr; 00079 } data; 00080 } wuart_buffer_t; 00081 00082 00084 typedef enum 00085 { 00086 DO_CONFIGURE, 00087 WAIT_GUARDTIME, 00088 WAIT_PLUS, 00090 DATA_MODE, 00091 } wuart_state_t; 00092 00093 /* === prototypes ========================================================== */ 00094 #ifdef __cplusplus 00095 extern "C" { 00096 #endif 00097 00098 static void wuart_init(void); 00099 static void configure_radio(void); 00100 00101 static uint16_t get_number(int8_t base); 00102 00103 00104 #ifdef __cplusplus 00105 } /* extern "C" */ 00106 #endif 00107 00108 #endif /* #ifndef WUART_H */