FreeCalypso > hg > freecalypso-tools
view miscutil/arfcn2ti.c @ 995:74024eb17e04
fc-loadtool help: improve language regarding 16 MiB flash chips
In FC project history, 16 MiB flash originally meant Pirelli DP-L10.
Then we got FCDEV3B with the same flash (our own design), but now we are
discovering more Calypso devices that used such large flash, both late
Calypso era (Sony Ericsson K2x0) as well as much earlier ones (FIC FLUID
devices.txt file with 2004 dates, Leonardo+ rev 5). Hence we need to
migrate to more generic or neutral language in associated documentation,
without giving elevated status to specific examples that drove our
early project history.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sun, 03 Dec 2023 21:11:12 +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); }