hif.h
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    00001 /* Copyright (c) 2007 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 /* $Id$ */
    00036 #ifndef HIF_H
    00037 #define HIF_H
    00038
    00039
    00040 /* === types =========================================== */
    00041 #include <stdarg.h>
    00042 #include <avr/pgmspace.h>
    00047 #define FLASH_STRING_T  PGM_P
    00048 #define FLASH_STRING(x) PSTR(x)
    00049
    00050 #if HIF_TYPE != HIF_NONE || defined DOXYGEN
    00051
    00052 # define PRINTF(fmt, ...) hif_printf(FLASH_STRING(fmt), __VA_ARGS__)
    00053
    00054 # define PRINT(fmt) hif_echo(FLASH_STRING(fmt))
    00055
    00056 # define DUMP(sz,ptr) hif_dump(sz,ptr)
    00057 # define HIF_PUTS_NEWLINE() hif_puts_p(FLASH_STRING("\n\r"))
    00058 #else
    00059 # define hif_init(br)
    00060 # define PRINTF(fmt, ...)
    00061 # define PRINT(fmt)
    00062 # define DUMP(sz,ptr)
    00063 # define HIF_PUTS_NEWLINE()
    00064 #endif
    00065
    00066
    00067 /* === Prototypes ====================================== */
    00068
    00069 #if HIF_TYPE != HIF_NONE || defined DOXYGEN
    00070
    00075 void hif_init(const uint32_t baudrate);
    00076 #endif
    00077
    00084 void hif_puts_p(const char *progmem_s);
    00085
    00092 void hif_puts(const char *s );
    00093
    00101 uint8_t hif_put_blk(unsigned char *data, uint8_t size);
    00102
    00109 int hif_putc(int c);
    00110
    00116 void hif_echo(FLASH_STRING_T str);
    00117
    00124 void hif_printf(FLASH_STRING_T fmt, ...);
    00125
    00132 void hif_dump(uint16_t sz, uint8_t *d);
    00133
    00139 int hif_getc(void);
    00140
    00148 uint8_t hif_get_blk(unsigned char *data, uint8_t max_size);
    00149
    00150
    00163 static inline int hif_split_args(char *txtline, int maxargs, char **argv)
    00164 {
    00165 uint8_t argc = 0, nextarg = 1;
    00166
    00167     while((*txtline !=0) && (argc < maxargs))
    00168     {
    00169         if (*txtline == ' ')
    00170         {
    00171             *txtline = 0;
    00172             nextarg = 1;
    00173         }
    00174         else
    00175         {
    00176             if(nextarg)
    00177             {
    00178                 argv[argc] = txtline;
    00179                 argc++;
    00180                 nextarg = 0;
    00181             }
    00182         }
    00183         txtline++;
    00184     }
    00185
    00186     return argc;
    00187 }
    00188
    00190 #endif /* HIF_H */