FreeCalypso > hg > fc-magnetite

annotate src/cs/riviera/rvt/rvt_keepalive.c @ 632:d968a3216ba0

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new tangomdm build target TCS211/Magnetite built for target leonardo runs just fine on the Tango-based Caramel board, but a more proper tangomdm build target is preferable in order to better market these Tango modems to prospective commercial customers. The only differences are in GPIO and MCSI config: * MCSI is enabled in the tangomdm build config. * GPIO 1 is loudspeaker amplifier control on Leonardo, but on Tango platforms it can be used for anything. On Caramel boards this GPIO should be configured as an output driving high. * GPIO 2 needs to be configured as Calypso input on Leonardo, but on Tango platforms it can be used for anything. On Caramel boards this GPIO should be configured as an output, either high or low is OK.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 04 Jan 2020 19:27:41 +0000
parents 9ffdfacfe969
children
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9ffdfacfe969 implemented pseudo-modem keepalive for C139 and Pirelli targets
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1 /*
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2 * This module is a FreeCalypso addition. Here we implement the special
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3 * operation mode that is only used when a device that was originally
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4 * meant to be a phone handset is turned into a pseudo-modem with no UI,
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5 * requiring connection to a host computer running rvinterf for control.
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6 */
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7
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8 #ifdef PSEUDO_MODEM_KEEPALIVE
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9
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10 #include "nucleus.h"
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11
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12 #include "abb.h"
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13
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14 #include "rv/general.h"
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15 #include "rv/rv_general.h"
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16 #include "rvf/rvf_api.h"
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17 #include "rvt/rvt_gen.h"
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18 #include "rvt/rvt_def_i.h"
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19 #include "rvt/rvt_env.h"
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20 #include "rvt/rvt_env_i.h"
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21 #include "rvm/rvm_use_id_list.h"
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22
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23 #include "uart/serialswitch.h"
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24
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25 #include <string.h>
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26
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27 volatile UINT8 rvt_keepalive_counter;
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28
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29 void rvt_keepalive_input(T_RVT_BUFFER p_msg, UINT16 msg_length)
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30 {
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31 /* Checking for an invalid PDU. */
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32 if ((p_msg == NULL) || (msg_length != 1))
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33 return;
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34
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35 /* Check for the correct opcode */
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36 if (*p_msg != 'A')
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37 return;
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38
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39 /* good keepalive response from external host */
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40 rvt_keepalive_counter = 0;
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41 }
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42
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43 void rvt_keepalive_register(void)
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44 {
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45 T_RVT_USER_ID rvt_id;
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46
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47 rvt_register_id("KEEPALIVE", &rvt_id, rvt_keepalive_input);
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48 }
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49
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50 static void keepalive_send(UINT8 *buf, UINT32 size)
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51 {
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52 UINT32 sent;
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53
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54 for (sent = 0; sent < size; )
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55 sent += SER_tr_WriteNBytes(SER_LAYER_1, buf + sent,
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56 size - sent);
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57 }
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58
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59 #ifdef PSEUDO_MODEM_USB
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60 static char poweroff_msg[] = "System: USB unplugged, powering off";
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61 #else
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62 static char poweroff_msg[] = "System: no keepalive response, powering off";
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63 static UINT8 keepalive_msg[2] = {RVT_KEEPALIVE_HEADER, 'Q'};
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64 #endif
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65
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66 static void keepalive_poweroff(void)
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67 {
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68 UINT8 poweroff_msg_buf[50], *p;
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69
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70 p = poweroff_msg_buf;
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71 *p++ = RVT_RV_HEADER;
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72 *p++ = 0;
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73 *p++ = 0;
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74 *p++ = 0;
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75 *p++ = 0;
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76 *p++ = RV_TRACE_LEVEL_ERROR;
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77 strcpy((char *)p, poweroff_msg);
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78 keepalive_send(poweroff_msg_buf, strlen(poweroff_msg) + 6);
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79 /* do it */
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80 ABB_Power_Off();
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81 }
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82
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83 void rvt_keepalive_process(void)
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84 {
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85 SYS_UWORD16 abb_status;
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86
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87 abb_status = ABB_Read_Status();
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88 if (abb_status & CHGPRES) {
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89 rvt_keepalive_counter = 0;
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90 return;
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91 }
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92
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93 #ifdef PSEUDO_MODEM_USB
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94 keepalive_poweroff();
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95 #else
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96 if (rvt_keepalive_counter >= 3)
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97 keepalive_poweroff();
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98 else {
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99 rvt_keepalive_counter++;
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100 keepalive_send(keepalive_msg, sizeof keepalive_msg);
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101 }
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102 #endif
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103 }
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104
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105 #endif