FreeCalypso > hg > freecalypso-tools
view old/linux-2.6.37.6-ftdi_sio.c.patch @ 964:a96cb97b66a2
ringtools/imy: fix duplicate definition of tdma_durations[]
The bug was reported by Vadim Yanitskiy <fixeria@osmocom.org>,
although the present fix is slightly different from the contributed
patch: because main.c doesn't need this tdma_durations[] array
at all, let's simply remove the reference to this array from main.c
rather than turn it into an extern.
I no longer remember my original thought flow that resulted (by mistake)
in tdma_durations[] being multiply defined in main.c and durations.c.
My intent might have been to define all globals in main.c and have
the reference in durations.c be an extern - and I missed that extern -
but without clear memory, I have no certainty. In any case, having
this data array defined in the same module that fills it (durations.c)
is sensible, so let's make it the new way.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 31 Aug 2023 19:38:18 +0000 |
| parents | 40f44aa49dd0 |
| children |
line wrap: on
line source
--- ftdi_sio.c.orig 2011-03-27 11:01:41.000000000 -0800 +++ ftdi_sio.c 2015-10-30 13:18:40.879000032 -0800 @@ -949,7 +949,7 @@ static const unsigned char divfrac[8] = { 0, 3, 2, 4, 1, 5, 6, 7 }; __u32 divisor; /* divisor shifted 3 bits to the left */ - int divisor3 = base / 2 / baud; + int divisor3 = (base / 2 + baud / 2) / baud; divisor = divisor3 >> 3; divisor |= (__u32)divfrac[divisor3 & 0x7] << 14; /* Deal with special cases for highest baud rates. */ @@ -1087,6 +1087,17 @@ baud = tty_get_baud_rate(tty); dbg("%s - tty_get_baud_rate reports speed %d", __func__, baud); + /* + * FreeCalypso hack: translate non-std high + * baud rates for GSM like CP2102 does. + */ + if (baud == 230400) + baud = 203125; + else if (baud == 460800) + baud = 406250; + else if (baud == 921600) + baud = 812500; + /* 2. Observe async-compatible custom_divisor hack, update baudrate if needed */