FreeCalypso > hg > freecalypso-sw

annotate rvinterf/asyncshell/rxctl.c @ 992:a7b0b426f9ca

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target-utils: boot ROM UART autodetection revamped The new implementation should work with both the familiar Calypso C035 boot ROM version found in our regular targets as well as the older Calypso F741979B version found on the vintage D-Sample board.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 30 Dec 2015 21:28:41 +0000
parents c9f353b5d70c
children 820d34f3f3d7
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874
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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 rxctl_user_cmd(args, enable)
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49 char *args;
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50 {
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51 char *cp, *np;
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52 int gotsome = 0;
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53
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54 for (cp = args; ; ) {
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55 while (isspace(*cp))
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56 cp++;
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57 if (!*cp) {
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58 if (!gotsome)
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59 printf("error: argument required\n");
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60 return;
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61 }
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62 for (np = cp; *cp && !isspace(*cp); cp++)
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63 ;
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64 if (*cp)
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65 *cp++ = '\0';
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66 if (!strcmp(np, "ati"))
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67 ati_rx_control(enable);
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68 else if (!strcmp(np, "gpf"))
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69 gpf_rx_control(enable);
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70 else {
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71 printf("error: unknown channel \"%s\"\n", np);
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72 return;
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73 }
876
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74 gotsome++;
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75 }
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76 }
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77
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78 void
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79 cmd_enable(args)
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80 char *args;
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81 {
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82 rxctl_user_cmd(args, 1);
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83 }
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84
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85 void
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86 cmd_disable(args)
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87 char *args;
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88 {
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89 rxctl_user_cmd(args, 0);
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90 }