wuart.h

    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 */