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path: root/drivers/media/dvb-frontends/cx24123.c
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2013-04-08[media] cx24123: improve precision when calculating symbol rate ratioMauro Carvalho Chehab1-21/+7
Symbol rate ratio were using a rough calculus, as the code was limited to 32 bits arithmetic. Change it to 64 bits, in order to better estimate the bandwidth low-pass filter on the demod. This should reduce the noise and improve reception. Reported-by: Hans-Peter Jansen <hpj@urpla.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-10-28[media] dvb-frontends: get rid of some "always false" warningsMauro Carvalho Chehab1-1/+1
On gcc, enums are generally unsigned, except if a negative value is declared. Due to that, warnings may happen there: drivers/media/dvb-frontends/cx22700.c:142:2: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] drivers/media/dvb-frontends/cx22700.c:155:2: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] drivers/media/dvb-frontends/cx24123.c:341:2: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] drivers/media/dvb-frontends/l64781.c:183:2: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] drivers/media/dvb-frontends/l64781.c:187:2: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] drivers/media/dvb-frontends/mt312.c:552:2: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] drivers/media/dvb-frontends/mt312.c:560:2: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] As other compilers might be using signed values, the better is to keep the checks there, casting the value to avoid the warning. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-14[media] move the dvb/frontends to drivers/media/dvb-frontendsMauro Carvalho Chehab1-0/+1165
Raise the DVB frontends one level up, as the intention is to remove the drivers/media/dvb directory. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>