FreeCalypso > hg > freecalypso-tools
annotate rvinterf/old/before-rvinterf/packettx.c @ 754:2cd5ac909e23
fc-fsio write-battery-table replaced with write-battery-table-{v1,v2}
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 05 Nov 2020 22:32:51 +0000 |
parents | e7502631a0f9 |
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rev | line source |
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e7502631a0f9
initial import from freecalypso-sw rev 1033:5ab737ac3ad7
Mychaela Falconia <falcon@freecalypso.org>
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1 /* |
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Mychaela Falconia <falcon@freecalypso.org>
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2 * This module handles the lowest level of serial packet Tx |
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Mychaela Falconia <falcon@freecalypso.org>
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3 */ |
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4 |
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Mychaela Falconia <falcon@freecalypso.org>
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5 #include <sys/types.h> |
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Mychaela Falconia <falcon@freecalypso.org>
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6 #include <stdio.h> |
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Mychaela Falconia <falcon@freecalypso.org>
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7 #include <stdlib.h> |
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Mychaela Falconia <falcon@freecalypso.org>
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8 #include <unistd.h> |
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Mychaela Falconia <falcon@freecalypso.org>
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9 #include "pktmux.h" |
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Mychaela Falconia <falcon@freecalypso.org>
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10 #include "txpkt.h" |
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Mychaela Falconia <falcon@freecalypso.org>
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11 |
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Mychaela Falconia <falcon@freecalypso.org>
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12 extern int target_fd; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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13 |
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Mychaela Falconia <falcon@freecalypso.org>
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14 send_pkt_to_target(pkt, pktlen) |
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Mychaela Falconia <falcon@freecalypso.org>
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15 u_char *pkt; |
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Mychaela Falconia <falcon@freecalypso.org>
parents:
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16 { |
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Mychaela Falconia <falcon@freecalypso.org>
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17 u_char buf[MAX_PKT_TO_TARGET*2+2]; |
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18 u_char *cp, *dp, *endp; |
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19 int c; |
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20 |
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21 endp = pkt + pktlen; |
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22 dp = buf; |
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23 *dp++ = STX; |
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24 for (cp = pkt; cp < endp; cp++) { |
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25 c = *cp; |
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26 if (c == STX || c == DLE) |
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27 *dp++ = DLE; |
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28 *dp++ = c; |
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29 } |
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30 *dp++ = STX; |
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Mychaela Falconia <falcon@freecalypso.org>
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31 write(target_fd, buf, dp - buf); |
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32 } |