Commit 7e8d8f6d authored by Michael Krufky's avatar Michael Krufky Committed by Mauro Carvalho Chehab

[media] mxl111sf: disable snr / ber calculations for DVB-T

Leaving this code enabled breaks the build on some architectures,
and we shouldn't have any floating point math in the kernel, anyway.

These macros need to be re-written, but it's harmless to simply
return zero for now.
Signed-off-by: default avatarMichael Krufky <mkrufky@kernellabs.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 4f98480f
......@@ -370,10 +370,20 @@ static int mxl111sf_demod_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
return ret;
}
#ifdef MXL111SF_DEMOD_ENABLE_CALCULATIONS
/* FIXME: leaving this enabled breaks the build on some architectures,
* and we shouldn't have any floating point math in the kernel, anyway.
*
* These macros need to be re-written, but it's harmless to simply
* return zero for now. */
#define CALCULATE_BER(avg_errors, count) \
((u32)(avg_errors * 4)/(count*64*188*8))
#define CALCULATE_SNR(data) \
((u32)((10 * (u32)data / 64) - 2.5))
#else
#define CALCULATE_BER(avg_errors, count) 0
#define CALCULATE_SNR(data) 0
#endif
static int mxl111sf_demod_read_ber(struct dvb_frontend *fe, u32 *ber)
{
......
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