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path: root/drivers/media/dvb-frontends/dib7000p.c
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* [media] dvb_frontend: pass the props cache to get_frontend() as argMauro Carvalho Chehab2016-02-041-3/+3
| | | | | | | | | | | | | | | | | Instead of using the DTV properties cache directly, pass the get frontend data as an argument. For now, everything should remain the same, but the next patch will prevent get_frontend to affect the global cache. This is needed because several drivers don't care enough to only change the properties if locked. Due to that, calling G_PROPERTY before locking on those drivers will make them to never lock. Ok, those drivers are crap and should never be merged like that, but the core should not rely that the drivers would be doing the right thing. Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] media: change email addressPatrick Boettcher2016-01-251-2/+2
| | | | | | | | | Soon my dibcom.fr/parrot.com-address won't respond anymore. Thus I'm replacing it. And, while being at it, let's adapt some other (old) email-addresses as well. Signed-off-by: Patrick Boettcher <patrick.boettcher@posteo.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] dvb: Get rid of typedev usage for enumsMauro Carvalho Chehab2015-06-091-3/+3
| | | | | | | | | | | | | | | | | The DVB API was originally defined using typedefs. This is against Kernel CodingStyle, and there's no good usage here. While we can't remove its usage on userspace, we can avoid its usage in Kernelspace. So, let's do it. This patch was generated by this shell script: for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done While here, make CodingStyle fixes on the affected lines. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
* [media] dib7000p: get rid of an unused argumentMauro Carvalho Chehab2014-10-301-5/+4
| | | | | | | | | dib7000p is for DVB, and not ISDB. So, there's no layer. That removes this compilation warning: drivers/media/dvb-frontends/dib7000p.c:1972: warning: 'i' is used uninitialized in this function Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] dib7000p: fix sparse warningHans Verkuil2014-09-031-1/+1
| | | | | | | drivers/media/dvb-frontends/dib7000p.c:2562:5: warning: symbol 'dib7090_set_diversity_in' was not declared. Should it be static? Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] dib7000p: Callibrate signal strengthMauro Carvalho Chehab2014-06-171-7/+47
| | | | | | | | | | | | | | | | | | | | | Calibrate the signal strength to dB. For this callibration, I used adapter 0 (antenna 1), connected via a normal cable to a DTF-2111 generator. The same cabling and RF generator connected to adapter 1 (antenna 2) has a difference of +3dBm (signal was stronger there). Yet, changing the RF for a difference of, let's say, 6dB reflected on a 6dB difference at the measured signal, with is good. So, the signal strengh can indeed be used to measure the antenna gain, if the antenna is repositioned. It is not precise to measure the absolute dBm value, however. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] dib7000p: Add DVBv5 stats supportMauro Carvalho Chehab2014-06-171-1/+320
| | | | | | | | | | | | | | | | | | | | | | | | | | Adds DVBv5 stats support. For now, just mimic whatever dib8000 does, as they're very similar, with regards to statistics. However, dib7000p_get_time_us() likely require some adjustments, as I didn't actually reviewed the formula for it to work with DVB-T. Still, better than nothing, as latter patches can improve it. This patch also doesn't show the signal strength in dB yet. The code is already there, but it requires to be callibrated. A latter patch will do the calibration. It seems that this patch is also a bug fix: Before this patch, the frontend were not tuning with some userspace tools. I suspect that dib7000p firmware or hardware internally expects that the statistics to be collected, in order for it to work. With this patch, the DVB core will always retrive statistics, even if userspace doesn't request. So, it makes the device work on all tested apps. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] dib7000: export just one symbolMauro Carvalho Chehab2014-06-171-32/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Exporting multiple symbols don't work as it causes compilation breakages, due to the way dvb_attach() works. This were reported several times, like: drivers/built-in.o: In function `cxusb_dualdig4_rev2_tuner_attach': >> cxusb.c:(.text+0x27d4b5): undefined reference to `dib7000p_get_i2c_master' drivers/built-in.o: In function `dib7070_set_param_override': cxusb.c:(.text+0x27d5a5): undefined reference to `dib0070_wbd_offset' >> cxusb.c:(.text+0x27d5be): undefined reference to `dib7000p_set_wbd_ref' drivers/built-in.o: In function `dib7070_tuner_reset': >> cxusb.c:(.text+0x27d5f9): undefined reference to `dib7000p_set_gpio' drivers/built-in.o: In function `cxusb_dualdig4_rev2_frontend_attach': >> cxusb.c:(.text+0x27df5c): undefined reference to `dib7000p_i2c_enumeration' In this specific report: CONFIG_DVB_USB_CXUSB=y CONFIG_DVB_DIB7000P=m But the same type of bug can happen if: CONFIG_DVB_DIB7000P=m and one of the bridge drivers is compiled builtin (cxusb, cx23885-dvb and/or dib0700). As a bonus, dib7000p won't be loaded anymore if the device uses a different frontend, reducing the memory footprint. Tested with Hauppauge Nova-TD (2 frontends). Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] dib7000p: rename dib7000p_attach to dib7000p_initMauro Carvalho Chehab2014-06-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Well, what we call as "foo_attach" is the method that should be called by the dvb_attach() macro. It should be noticed that the name "dvb_attach" is really a bad name and don't express what it does. dvb_attach() basically does three things, if the frontend is compiled as a module: - It lookups for the module that it is known to have the given symbol name and requests such module; - It increments the module usage (anonymously - so lsmod doesn't print who loaded the module); - after loading the module, it runs the function associated with the dynamic symbol. When compiled as builtin, it just calls the function given to it. As dvb_attach() increments refcount, it can't be (easily) called more than once for the same module, or the kernel will deny to remove the module, because refcount will never be zeroed. In other words, the function name given to dvb_attach() should be one single symbol that will always be called before any other function on that module to be used. For almost all DVB frontends, there's just one function. However, the dib7000p initialization can require up to 3 functions to be called: - dib7000p_get_i2c_master; - dib7000p_i2c_enumeration; - dib7000p_init (before this patch dib7000_attach). (plus a bunch of other functions that the bridge driver will need to call). As we need to get rid of all those direct calls, because they cause compilation breakages when bridge is builtin and frontend is module, we'll need to add a new function that will be the first one to be called, whatever initialization is needed. So, let's rename the function that probes and init the hardware to dib7000p_init. A latter patch will add a new dib7000p_attach that will be used as originally conceived by dvb_attach() way. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] dib7000p: enhancementOlivier Grenie2013-04-221-1/+16
| | | | | | | | | | The intend of this patch is to improve the support of the dib7000p. It is now possible to set the minimum value for the AGC1. Also, the driver takes into account the frequency offset introduced in the tuned frequency. Signed-off-by: Olivier Grenie <olivier.grenie@parrot.com> Signed-off-by: Patrick Boettcher <patrick.boettcher@parrot.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* [media] move the dvb/frontends to drivers/media/dvb-frontendsMauro Carvalho Chehab2012-08-131-0/+2457
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>
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