FreeCalypso > hg > freecalypso-tools
view miscutil/arfcn2ti.c @ 1012:11391cb6bdc0
patch from fixeria: doc change from SE K2x0 to K2xx
Since their discovery in late 2022, Sony Ericsson K200 and K220 phones
were collectively referred to as SE K2x0 in FreeCalypso documentation.
However, now that SE K205 has been discovered as yet another member
of the same family (same PCBA in different case), it makes more sense
to refer to the whole family as SE K2xx.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Mon, 23 Sep 2024 12:23:20 +0000 |
parents | b8cb116a7dc7 |
children |
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/* * TI's TCS211 L1 does not use standard ARFCNs internally, instead it uses * its own non-standard radio_freq numbers in their place. Other firmware * components and all external interfaces do use standard ARFCNs, thus * conversion functions are invoked at appropriate points in the firmware. * However, L1-internal radio_freq numbers are emitted in L1 debug traces, * thus anyone looking at these traces needs to be able to convert between * standard ARFCNs and L1-internal radio_freq. * * The present utility converts a standard ARFCN into TI L1 radio_freq. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> main(argc, argv) char **argv; { int arfcn; if (argc != 3) { usage: fprintf(stderr, "usage: %s {eu|us} arfcn\n", argv[0]); exit(1); } arfcn = atoi(argv[2]); if (!strcmp(argv[1], "eu")) arfcn2ti_eu(arfcn); else if (!strcmp(argv[1], "us")) arfcn2ti_us(arfcn); else goto usage; exit(0); } arfcn2ti_eu(arfcn) { if (arfcn == 0) arfcn = 174; else if ((arfcn >= 975) && (arfcn <= 1023)) arfcn -= 850; else if ((arfcn >= 512) && (arfcn <= 885)) arfcn -= 337; else if ((arfcn >= 1) && (arfcn <= 124)) ; else { fprintf(stderr, "error: specified ARFCN is invalid for dual-EU\n"); exit(1); } printf("%d\n", arfcn); } arfcn2ti_us(arfcn) { if ((arfcn >= 128) && (arfcn <= 251)) arfcn -= 127; else if ((arfcn >= 512) && (arfcn <= 810)) arfcn -= 387; else { fprintf(stderr, "error: specified ARFCN is invalid for dual-US\n"); exit(1); } printf("%d\n", arfcn); }