FreeCalypso > hg > freecalypso-tools

annotate rvinterf/asyncshell/rxctl.c @ 608:9d9c241f2c84

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libserial-newlnx experimental change to set ASYNC_LOW_LATENCY
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 12 Feb 2020 06:23:22 +0000
parents e7502631a0f9
children
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0
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1 /*
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2 * This module contains the code for enabling and disabling the receiving
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3 * of various packet types via rvinterf.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <stdio.h>
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8 #include <ctype.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <stdlib.h>
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12 #include "pktmux.h"
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13 #include "localsock.h"
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14
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15 void
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16 send_rxctl_cmd(channel, enable)
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17 {
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18 u_char cmdbuf[2];
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19
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20 cmdbuf[0] = enable ? CLI2RVI_WANT_MUXPROTO : CLI2RVI_DROP_MUXPROTO;
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21 cmdbuf[1] = channel;
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22 send_init_command(cmdbuf, 2);
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23 }
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24
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25 void
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26 ati_rx_control(newstate)
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27 {
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28 static int state = 0;
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29
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30 if (state == newstate)
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31 return;
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32 send_rxctl_cmd(RVT_AT_HEADER, newstate);
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33 state = newstate;
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34 }
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35
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36 void
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37 gpf_rx_control(newstate)
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38 {
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39 static int state = 0;
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40
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41 if (state == newstate)
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42 return;
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43 send_rxctl_cmd(RVT_L23_HEADER, newstate);
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44 state = newstate;
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45 }
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46
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47 void
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48 tch_rx_control(newstate)
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49 {
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50 static int state = 0;
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51
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52 if (state == newstate)
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53 return;
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54 send_rxctl_cmd(RVT_TCH_HEADER, newstate);
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55 state = newstate;
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56 }
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57
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58 void
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59 rxctl_user_cmd(args, enable)
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60 char *args;
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61 {
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62 char *cp, *np;
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63 int gotsome = 0;
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64
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65 for (cp = args; ; ) {
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66 while (isspace(*cp))
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67 cp++;
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68 if (!*cp) {
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69 if (!gotsome)
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70 printf("error: argument required\n");
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71 return;
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72 }
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73 for (np = cp; *cp && !isspace(*cp); cp++)
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74 ;
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75 if (*cp)
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76 *cp++ = '\0';
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77 if (!strcmp(np, "ati"))
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78 ati_rx_control(enable);
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79 else if (!strcmp(np, "gpf"))
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80 gpf_rx_control(enable);
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81 else if (!strcmp(np, "tch"))
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82 tch_rx_control(enable);
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83 else {
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84 printf("error: unknown channel \"%s\"\n", np);
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85 return;
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86 }
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87 gotsome++;
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88 }
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89 }
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90
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91 void
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92 cmd_enable(args)
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93 char *args;
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94 {
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95 rxctl_user_cmd(args, 1);
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96 }
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97
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98 void
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99 cmd_disable(args)
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100 char *args;
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101 {
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102 rxctl_user_cmd(args, 0);
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103 }