- 17 Jan, 2012 4 commits
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Mauro Carvalho Chehab authored
If the frontend is in idle state, don't call get_frontend. Calling get_frontend() when the device is not tuned may result in wrong parameters to be returned to the userspace. I was tempted to not call get_frontend() at all, except inside the dvb frontend thread, but this won't work for all cases. The ISDB-T specs (ABNT NBR 15601 and ARIB STD-B31) allow the broadcaster to dynamically change the channel specs at runtime. That means that an ISDB-T optimized application may want/need to monitor the TMCC tables, decoded at the frontends via get_frontend call. So, let's do the simpler change here. Eventually, the logic could be changed to work only if the device is tuned and has lock, but, even so, the lock is also standard-dependent. For ISDB-T, the right lock to wait is that the demod has TMCC lock. So, drivers may need to implement some logic to detect if the get_frontend info was retrieved or not. Signed-off-by:Mauro Carvalho Chehab <mchehab@redhat.com>
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Mauro Carvalho Chehab authored
On ISDB-T, each layer can have its own independent modulation, applied to the carriers that belong to the segments associated with them. So, there's no sense to define a global modulation parameter. Signed-off-by: -
Mauro Carvalho Chehab authored
The ISDB-T differs on its way to implement the hierarchical transmissions: instead of using a low-priority/high-priority FEC codes, it does that by using different layers, each layer with their groups of segments. So, those parameters don't make sense for ISDB-T. Signed-off-by: -
Mauro Carvalho Chehab authored
The units for DTV_FREQUENCY are kHz for satellital delivery systems (DVB-S/DVB-S2/DVB-TURBO/ISDB-S). Fix it at the API spec. Signed-off-by:
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- 16 Jan, 2012 34 commits
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Antti Palosaari authored
This fixes bug introduced by multi-frontend to single-frontend change. Finally HAS_LOCK is got back! We are not allowed to access hardware in sleep mode... Chip did not like when .get_frontend() reads some registers while chip was sleeping and due to that HAS_LOCK bit was never gained. TODO: We should add logic for dvb-core to drop out illegal calls like that. Signed-off-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
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Antti Palosaari authored
Fix yet another bug introduced be recent cxd2820r multi-frontend to single-frontend change. Finally, we have at least almost working picture for DVB-C too. Signed-off-by:
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Jesper Juhl authored
As pointed out by 'make versioncheck', there's no need for drivers/media/dvb/frontends/tda18271c2dd.c to Signed-off-by:
Jesper Juhl <jj@chaosbits.net> Signed-off-by:
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Antti Palosaari authored
Fix another bug introduced by recent multi-frontend to single-frontend change. Signed-off-by:
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Antti Palosaari authored
cxd2820r implements only one frontend currently which handles all the standards. Signed-off-by:
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Dan Carpenter authored
The caller doesn't check the return value of check_firmware() but static checkers complain. It currently returns negative error codes, or zero or greater on success but since the return type is boolean the values are truncated to one or zero. I've changed it to return an int, negative on error and zero on success. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Dan Carpenter authored
These were initialized twice by mistake. They were defined the same way both times so this doesn't change how the code works. Signed-off-by:
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Miroslav Slugen authored
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Miroslav Slugen <thunder.mmm@gmail.com> Signed-off-by:
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Miroslav Slugen authored
In xc4000 chipsets real signal and noise level is stored in register 0x0A and 0x0B,so we can use those registers to monitor signal strength. I tested this patch on 2 different cards Leadtek DVR3200 and DTV2000H Plus, both with same results, I used special antenna hubs (toner 4x, 6x, 8x and 12x) with mesured signal lost, both registers are in dB value, first represent signal with limit value -113.5dB (should be -114dB) and exactly match with test results. Second represents noise level also in dB and there is no maximum value, but from tests we can drop everything above 32dB which tuner realy can't use, signal was usable till 20dB noise level. In digital mode we can take signal strength but sadly noise level is not relevant and real value is stored in demodulator for now just zl10353, also digital mode is just for testing, because it needs changing other parts of code which reads data only from demodulator. In analog mode I was able to test only FM radio, signal level is not important, it says something about cable and hub losts, but nothing about real quality of reception, so even if we have signal level at minimum 113dB we can still here radio, because of that it is displaied only in debug mode, but for real signal level is used noise register which is again very accurate, radio noise level was betwen 6-20dB for good signal, 20-25dB for medium signal, and above 25dB signal is unusable. For now real benefit of this patch is only for FM radio mode. Signed-off-by:
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Miroslav Slugen authored
Update xc4000 tuner definition, number 81 is already in use by TUNER_PARTSNIC_PTI_5NF05. Cc: stable@kernel.org Signed-off-by:
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Miroslav Slugen authored
All radio tuners in cx88 driver using same address for radio and tuner, so there is no need to probe it twice for same tuner and we can use radio_type UNSET, this also fix broken radio since kernel 2.6.39-rc1 for those tuners. Cc: stable@kernel.org Signed-off-by:
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Miroslav Slugen authored
All radio tuners in cx23885 driver using same address for radio and tuner, so there is no need to probe it twice for same tuner and we can use radio_type UNSET. Be aware radio support in cx23885 is not yet committed, so this is only minor fix for future support. Signed-off-by:
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Miroslav Slugen authored
Fix possible null dereference for Leadtek DTV 3200H XC4000 tuner when no firmware file available. Cc: stable@kernel.org Signed-off-by:
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Dan Carpenter authored
"dev" is NULL here so we should use "nr" instead of "dev->devno". Signed-off-by:
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Dan Carpenter authored
Clearly ">=" was intended here instead of ">". Signed-off-by:
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Hans de Goede authored
This reduces our module init to a simple usb_register() call, so that we can make use of the new upcoming macro's for this. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Hans de Goede authored
The code for this is rather crufty, and being able to tie a device to a specific minor is not really something we want to support in a modern udev based world. Signed-off-by:
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Hans de Goede authored
The pwc driver used to: 1. kmalloc a buffer 2. memcpy data to send over usb there 3. do the usb_control_msg call (which does not work with data on the stack) 4. free the buffer For every usb command send. This patch changes the code to instead malloc a buffer for this purpose once and use it everywhere. [mchehab@redhat.com: Fix a compilation breakage with allyesconfig: drivers/media/video/pwc/pwc-ctrl.c: In function ‘pwc_get_cmos_sensor’: drivers/media/video/pwc/pwc-ctrl.c:546:3: warning: passing argument 4 of ‘recv_control_msg’ makes integer from pointer without a cast [en$ drivers/media/video/pwc/pwc-ctrl.c:107:12: note: expected ‘int’ but argument is of type ‘unsigned char *’ drivers/media/video/pwc/pwc-ctrl.c:546:3: error: too many arguments to function ‘recv_control_msg’ drivers/media/video/pwc/pwc-ctrl.c:107:12: note: declared here] Signed-off-by:
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Hans de Goede authored
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Hans de Goede authored
Since we always do a set_video_mode on stream start, there is no need to actually send the mode info to the device on a s_fmt / s_parm ioctl. Not doing this saves us doing (slow) usb io. Signed-off-by:
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Hans de Goede authored
Before this patch various code in the mode setting patch checked pdev->pixfmt, but that was not set until the mode setting succeeded, so it was looking at the old pixfmt! This patch fixes this by making the pixfmt a parameter to set_video_mode, and setting it from set_video_mode on success. Signed-off-by:
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Hans de Goede authored
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Hans de Goede authored
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Hans Verkuil authored
Instead of messing around with id's it's much easier to just compare against a filehandle pointer. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Acked-by:
Andy Walls <awalls@md.metrocast.net> Signed-off-by:
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Hans Verkuil authored
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Hans Verkuil authored
For some reason the cx18 driver could open the radio device only once. Remove this limitation. Signed-off-by:
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Hans Verkuil authored
For some reason the /dev/radio device was implemented as an exclusive open: you could open it only once and not a second time. Remove this limitation. Signed-off-by:
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Hans Verkuil authored
As per the feature removal document, make the tuner type check more strict so that it is no longer possible to set the radio frequency through a video node or the TV frequency through a radio node. Signed-off-by:
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Hans Verkuil authored
As Rupert pointed out, the phrase "It is good practice" should be replaced with "You must". Signed-off-by:
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Hans Verkuil authored
Update the spec to the behavior implemented by the control framework. This should have been documented long ago but for some reason it was never done. Signed-off-by:
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Hans Verkuil authored
The omap_vout driver has an output overlay, but never advertised that capability. The driver should also set the V4L2_FBUF_FLAG_OVERLAY flag. Signed-off-by:
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Hans Verkuil authored
The zoran driver does not support this flag, so don't set it. Signed-off-by:
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Hans Verkuil authored
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Dan Carpenter authored
The error handling in the original code wasn't complete so static checkers complained about a potential NULL deference. Signed-off-by:
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- 15 Jan, 2012 2 commits
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Mauro Carvalho Chehab authored
The changeset 240ab508 is incomplete, as the first thing that happens at cache clear is to do a memset with 0 to the cache. So, the delivery system needs to be explicitly preserved there. Signed-off-by:
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Mauro Carvalho Chehab authored
As reported by Lawrence[1], MythTV 0.24.1 does the wrong thing with a DVBv5 call: it fills the delivery system with SYS_UNDEFINED, expecting that the DVB core would work with that. This used to work by accident, as the DVB core were missing the check for the supported delivery systems. Yet, fixing it is easy, so let's add a logic to handle this case, to provide backward compatibility. [1] http://patchwork.linuxtv.org/patch/8314/Signed-off-by:
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