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Code Issues Releases Wiki Activity

No longer checking for EOPNOTSUPP in cDvbTuner::GetSignalQuality()

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This commit is contained in:
Klaus Schmidinger 2013-02-14 13:21:34 +01:00
parent 9455b9a2b0
commit 62dfd2f996
2 changed files with 7 additions and 10 deletions
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3
HISTORY
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@ -7612,3 +7612,6 @@ Video Disk Recorder Revision History
- Updated the Lithuanian OSD texts (thanks to Valdemaras Pipiras).
- The timeout for trying to switch to a valid programme is now reset immediately once
a programme has been found.
- No longer checking for EOPNOTSUPP in cDvbTuner::GetSignalQuality() to avoid breaking
this function in case the driver suddenly decides to return a different errno value
if an operation is not supported.

14
dvbdevice.c
View File

@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: dvbdevice.c 2.77 2012/12/30 13:08:41 kls Exp $
* $Id: dvbdevice.c 2.78 2013/02/14 13:21:34 kls Exp $
*/
#include "dvbdevice.h"
@ -583,15 +583,13 @@ int cDvbTuner::GetSignalQuality(void) const
while (1) {
if (ioctl(fd_frontend, FE_READ_SNR, &Snr) != -1)
break;
if (errno == EOPNOTSUPP) {
if (errno != EINTR) {
Snr = 0xFFFF;
#ifdef DEBUG_SIGNALQUALITY
HasSnr = false;
#endif
break;
}
if (errno != EINTR)
return -1;
}
#ifdef DEBUG_SIGNALQUALITY
bool HasBer = true;
@ -600,15 +598,13 @@ int cDvbTuner::GetSignalQuality(void) const
while (1) {
if (ioctl(fd_frontend, FE_READ_BER, &Ber) != -1)
break;
if (errno == EOPNOTSUPP) {
if (errno != EINTR) {
Ber = 0;
#ifdef DEBUG_SIGNALQUALITY
HasBer = false;
#endif
break;
}
if (errno != EINTR)
return -1;
}
#ifdef DEBUG_SIGNALQUALITY
bool HasUnc = true;
@ -617,15 +613,13 @@ int cDvbTuner::GetSignalQuality(void) const
while (1) {
if (ioctl(fd_frontend, FE_READ_UNCORRECTED_BLOCKS, &Unc) != -1)
break;
if (errno == EOPNOTSUPP) {
if (errno != EINTR) {
Unc = 0;
#ifdef DEBUG_SIGNALQUALITY
HasUnc = false;
#endif
break;
}
if (errno != EINTR)
return -1;
}
uint16_t MaxSnr = 0xFFFF; // Let's assume the default is using the entire range.
// Use the subsystemId to identify individual devices in case they need