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path: root/drivers/media/dvb-frontends/rtl2832.c
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2014-03-05[media] rtl2832: implement delayed I2C gate closeAntti Palosaari
Delay possible I2C gate close a little bit in order to see if there is next message coming to tuner in a sequence. Also, export private muxed I2C adapter. That is aimed only for SDR extension module as SDR belongs to same RTL2832 physical I2C bus (it is physically property of RTL2832, whilst it is own kernel module). Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-05[media] rtl2832: Fix deadlock on i2c mux select functionLuis Alves
Signed-off-by: Luis Alves <ljalvs@gmail.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-05[media] rtl2832: add muxed I2C adapter for demod itselfAntti Palosaari
There was a deadlock between master I2C adapter and muxed I2C adapter. Implement two I2C muxed I2C adapters and leave master alone, just only for offering I2C adapter for these mux adapters. Reported-by: Luis Alves <ljalvs@gmail.com> Reported-by: Benjamin Larsson <benjamin@southpole.se> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-05[media] rtl2832: provide muxed I2C adapterAntti Palosaari
RTL2832 provides gated / repeater I2C adapter for tuner. Implement it as a muxed I2C adapter. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-05[media] rtl2832: style changes and minor cleanupAntti Palosaari
Most of those were reported by checkpatch.pl... debug module parameter is not used anywhere so remove it. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-05[media] rtl2832: remove unused if_dvbt config parameterAntti Palosaari
All used tuners has get_if_frequency() callback and that parameter is not needed and will not needed as all upcoming tuner drivers should implement get_if_frequency(). Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-08[media] dvb-frontends: Don't use dynamic static allocationMauro Carvalho Chehab
Dynamic static allocation is evil, as Kernel stack is too low, and compilation complains about it on some archs: drivers/media/dvb-frontends/af9013.c:77:1: warning: 'af9013_wr_regs_i2c' uses dynamic stack allocation [enabled by default] drivers/media/dvb-frontends/af9033.c:188:1: warning: 'af9033_wr_reg_val_tab' uses dynamic stack allocation [enabled by default] drivers/media/dvb-frontends/af9033.c:68:1: warning: 'af9033_wr_regs' uses dynamic stack allocation [enabled by default] drivers/media/dvb-frontends/bcm3510.c:230:1: warning: 'bcm3510_do_hab_cmd' uses dynamic stack allocation [enabled by default] drivers/media/dvb-frontends/cxd2820r_core.c:84:1: warning: 'cxd2820r_rd_regs_i2c.isra.1' uses dynamic stack allocation [enabled by default] drivers/media/dvb-frontends/rtl2830.c:56:1: warning: 'rtl2830_wr' uses dynamic stack allocation [enabled by default] drivers/media/dvb-frontends/rtl2832.c:187:1: warning: 'rtl2832_wr' uses dynamic stack allocation [enabled by default] drivers/media/dvb-frontends/tda10071.c:52:1: warning: 'tda10071_wr_regs' uses dynamic stack allocation [enabled by default] drivers/media/dvb-frontends/tda10071.c:84:1: warning: 'tda10071_rd_regs' uses dynamic stack allocation [enabled by default] Instead, let's enforce a limit for the buffer. Considering that I2C transfers are generally limited, and that devices used on USB has a max data length of 64 bytes for the control URBs. So, it seem safe to use 64 bytes as the hard limit for all those devices. On most cases, the limit is a way lower than that, but this limit is small enough to not affect the Kernel stack, and it is a no brain limit, as using smaller ones would require to either carefully each driver or to take a look on each datasheet. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com> Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-31[media] rtl2832: add new tuner R828DAntti Palosaari
Use R820T config for R828D too as those are about same tuner. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-04-16[media] rtl2832: Fix IF calculusMauro Carvalho Chehab
Spectrum is inverted. So, we need to invert it when calculating the value for the IF register Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Tested-by: Antti Palosaari <crope@iki.fi>
2013-04-16[media] rtl2832: properly set en_bbin for r820tMauro Carvalho Chehab
DVBT_EN_BBIN should be set on both places where IF is set. So, move it to a function and call it where needed. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Tested-by: Antti Palosaari <crope@iki.fi>
2013-04-16[media] rtl2832: add code to bind r820t on itMauro Carvalho Chehab
There are some init stuff to be done for each new tuner at the demod code. Add the code there for r820t. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Tested-by: Antti Palosaari <crope@iki.fi>
2012-10-27[media] rtl2832: get rid of warning: no previous prototypeMauro Carvalho Chehab
drivers/media/dvb-frontends/rtl2832.c:268:5: warning: no previous prototype for 'rtl2832_rd_demod_reg' [-Wmissing-prototypes] drivers/media/dvb-frontends/rtl2832.c:308:5: warning: no previous prototype for 'rtl2832_wr_demod_reg' [-Wmissing-prototypes] drivers/media/dvb-frontends/rtl2832.c:513:5: warning: no previous prototype for 'rtl2832_get_tune_settings' [-Wmissing-prototypes] Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-27[media] rtl2832: add configuration for e4000 tunerAntti Palosaari
Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-23[media] rtl2832: use dev_foo() loggingAntti Palosaari
Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-23[media] rtl2832: support for tua9001 tunerAntti Palosaari
Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-23[media] rtl2832: separate tuner specific init from generalAntti Palosaari
It is first step closer to support multiple tuners. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-15[media] rtl2832: implement .read_ber()Antti Palosaari
Implementation taken from rtl2830. Cc: Thomas Mair <thomas.mair86@googlemail.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-15[media] rtl2832: implement .read_snr()Antti Palosaari
Based rtl2830 implementation. Cc: Thomas Mair <thomas.mair86@googlemail.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-15[media] rtl2832: implement .get_frontend()Antti Palosaari
Copied from rtl2830. Cc: Thomas Mair <thomas.mair86@googlemail.com> Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-10[media] rtl2832: remove dummy callback implementationsAntti Palosaari
Let the dvb-frontend return -ENOTTY for those unimplemented IOCTLs. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-13[media] move the dvb/frontends to drivers/media/dvb-frontendsMauro Carvalho Chehab
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>