FreeCalypso > hg > freecalypso-tools
annotate miscutil/arfcn2ti.c @ 941:8fc3b72eb2c6
rvinterf -vv TCH raw dump: write to log only if running with -l
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 24 May 2023 06:46:26 +0000 |
parents | b8cb116a7dc7 |
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1 /* |
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2 * TI's TCS211 L1 does not use standard ARFCNs internally, instead it uses |
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3 * its own non-standard radio_freq numbers in their place. Other firmware |
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4 * components and all external interfaces do use standard ARFCNs, thus |
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5 * conversion functions are invoked at appropriate points in the firmware. |
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6 * However, L1-internal radio_freq numbers are emitted in L1 debug traces, |
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7 * thus anyone looking at these traces needs to be able to convert between |
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8 * standard ARFCNs and L1-internal radio_freq. |
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9 * |
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10 * The present utility converts a standard ARFCN into TI L1 radio_freq. |
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11 */ |
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12 |
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13 #include <stdio.h> |
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14 #include <stdlib.h> |
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15 #include <string.h> |
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16 #include <strings.h> |
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17 |
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18 main(argc, argv) |
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19 char **argv; |
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20 { |
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21 int arfcn; |
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22 |
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23 if (argc != 3) { |
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24 usage: fprintf(stderr, "usage: %s {eu|us} arfcn\n", argv[0]); |
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25 exit(1); |
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26 } |
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27 arfcn = atoi(argv[2]); |
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28 if (!strcmp(argv[1], "eu")) |
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29 arfcn2ti_eu(arfcn); |
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30 else if (!strcmp(argv[1], "us")) |
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31 arfcn2ti_us(arfcn); |
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32 else |
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33 goto usage; |
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34 exit(0); |
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35 } |
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36 |
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37 arfcn2ti_eu(arfcn) |
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38 { |
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39 if (arfcn == 0) |
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40 arfcn = 174; |
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41 else if ((arfcn >= 975) && (arfcn <= 1023)) |
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42 arfcn -= 850; |
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43 else if ((arfcn >= 512) && (arfcn <= 885)) |
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44 arfcn -= 337; |
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45 else if ((arfcn >= 1) && (arfcn <= 124)) |
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46 ; |
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47 else { |
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48 fprintf(stderr, |
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49 "error: specified ARFCN is invalid for dual-EU\n"); |
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50 exit(1); |
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51 } |
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52 printf("%d\n", arfcn); |
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53 } |
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54 |
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55 arfcn2ti_us(arfcn) |
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56 { |
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57 if ((arfcn >= 128) && (arfcn <= 251)) |
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58 arfcn -= 127; |
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59 else if ((arfcn >= 512) && (arfcn <= 810)) |
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60 arfcn -= 387; |
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61 else { |
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62 fprintf(stderr, |
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63 "error: specified ARFCN is invalid for dual-US\n"); |
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64 exit(1); |
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65 } |
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66 printf("%d\n", arfcn); |
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67 } |