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annotate ad9956.c @ 206:c700a2d38fb8

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New AD9956 interface
author Daniele Nicolodi <daniele.nicolodi@obspm.fr>
date Mon, 31 Mar 2014 17:03:38 +0200
parents
children fcc988c6f841
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206
c700a2d38fb8 New AD9956 interface
Daniele Nicolodi <daniele.nicolodi@obspm.fr>
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1 #ifdef _CVI_
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2 #include <winsock2.h>
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3 #include <ansi_c.h>
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4 #include <toolbox.h>
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5 #else
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <unistd.h>
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9 #include <errno.h>
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10 #include <string.h>
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11 #include <sys/types.h>
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12 #include <sys/socket.h>
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13 #include <netinet/in.h>
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14 #include <arpa/inet.h>
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15 #include <netdb.h>
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16 #include <ctype.h>
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17 #include <stdarg.h>
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18 #endif
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19
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20 #include "dds.h"
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21 #include "ad9956.h"
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22
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23
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24 int ad9956_init(struct ad9956 *d, const char *hostname, double clock)
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25 {
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26 int sock, n, r;
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27 char buffer[256];
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28 struct sockaddr_in addr;
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29 struct hostent* host;
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30
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31 #ifdef _CVI_
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32 WSADATA wsdata;
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33 WSAStartup(MAKEWORD(2,2), &wsdata);
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34 #endif
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35
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36 d->hostname = strdup(hostname);
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37 d->port = 1234;
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38 d->profile = 0;
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39 d->clock = clock;
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40
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41 host = gethostbyname(hostname);
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42 if (host == NULL)
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43 return -1;
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44
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45 sock = socket(AF_INET, SOCK_STREAM, 0);
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46 if (sock < 0)
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47 return -2;
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48
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49 addr.sin_family = host->h_addrtype;
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50 memcpy(&addr.sin_addr.s_addr, host->h_addr_list[0], host->h_length);
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51 addr.sin_port = htons(d->port);
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52
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53 r = connect(sock, (struct sockaddr*)&addr, sizeof(addr));
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54 if (r < 0)
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55 return -3;
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56
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57 d->fd = sock;
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58
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59 /* check compatibility */
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60 n = snprintf(buffer, sizeof(buffer), "REVISION");
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61 r = msend(d->fd, buffer, n);
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62 if (r < 0)
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63 return r;
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64 r = mrecv(d->fd, buffer, sizeof(buffer));
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65 if (r < 0)
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66 return r;
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67 if (atoi(buffer) != REVISION)
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68 return -EINVAL;
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69
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70 return 0;
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71 }
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72
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73
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74 int ad9956_set_frequency(struct ad9956 *d, double f)
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75 {
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76 int r;
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77 uint64 value = ftw(d->clock, f);
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78
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79 r = command(d->fd, "SET PCR%d 0x%llX", d->profile, value);
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80 if (r < 0)
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81 return r;
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82
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83 d->frequency = freq(d->clock, value);
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84
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85 return 0;
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86 }
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87
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88
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89 int ad9956_get_frequency(struct ad9956 *d, double *f)
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90 {
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91 int r, n;
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92 uint64 value;
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93 char buffer[256];
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94
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95 n = snprintf(buffer, sizeof(buffer), "GET PCR%d", d->profile);
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96
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97 r = msend(d->fd, buffer, n);
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98 if (r < 0)
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99 return r;
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100
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101 r = mrecv(d->fd, buffer, sizeof(buffer));
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102 if (r < 0)
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103 return r;
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104
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105 r = strtouint64(buffer, &value);
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106 if (r < 0)
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107 return r;
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108
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109 d->frequency = freq(d->clock, value);
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110 if (f)
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111 *f = d->frequency;
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112
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113 return 0;
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114 }
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115
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116
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117 int ad9956_set_sweep_rate(struct ad9956 *d, double rate)
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118 {
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119 int r;
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120 uint64 value = ftw(d->clock, rate);
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121
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122 r = command(d->fd, "SWEEP SET DFTW %lld", d->profile, value);
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123 if (r < 0)
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124 return r;
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125
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126 return 0;
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127 }
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128
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129
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130 int ad9956_sweep_start(struct ad9956 *d)
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131 {
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132 int r;
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133
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134 r = command(d->fd, "SWEEP START");
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135 if (r < 0)
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136 return r;
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137
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138 return 0;
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139 }
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140
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141
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142 int ad9956_sweep_stop(struct ad9956 *d)
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143 {
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144 int r;
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145
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146 r = command(d->fd, "SWEEP STOP");
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147 if (r < 0)
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148 return r;
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149
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150 return 0;
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151 }