Commit Graph

7 Commits

Author SHA1 Message Date
Mauro Carvalho Chehab
7612cf97ec [media] c8sectpfe: don't go past channel_data array
As reported by smatch:
	drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:365 find_channel() error: buffer overflow 'fei->channel_data' 8 <= 63

It seems that a cut-and-paste type of error occurred here:
the channel_data array size is C8SECTPFE_MAX_TSIN_CHAN, and not
C8SECTPFE_MAXCHANNEL.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-11 16:16:55 -03:00
Mauro Carvalho Chehab
409e9eff72 [media] c8sectpfe: Allow compiling it with COMPILE_TEST
While it won't work, it is good to allow it to build with
COMPILE_TEST, as we can check if other patches would break
compilation for this driver.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-11 16:16:50 -03:00
Peter Griffin
850a3f7d59 [media] c8sectpfe: Add Kconfig and Makefile for the driver
This patch adds the Kconfig and Makefile for the c8sectpfe driver
so it will be built. It also selects additional demodulator and tuners
which are required by the supported NIM cards.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-11 16:08:29 -03:00
Peter Griffin
03ad477615 [media] c8sectpfe: Add c8sectpfe debugfs support
Some basic debugfs support to dump the IP registers. Further
statistics could easily be added in the future for example for
each enabled tsin channel we could expose number of corrupt packets
received etc.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-11 16:07:22 -03:00
Peter Griffin
e77a0cbe6c [media] c8sectpfe: Add support for various ST NIM cards
This patch adds support for the following 2 NIM cards: -
1) B2100A (2x stv0367 demods & 2x NXP tda18212 tuners)
2) STV0903-6110NIM (stv0903 demod + 6110 tuner, lnb24)

A NIM card is a cold plugable expansion card which usually
features a demodulator / tuner combination.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-11 16:06:49 -03:00
Peter Griffin
b5e208a684 [media] c8sectpfe: Add LDVB helper functions
These functions are used by the core code for creating the LDVB
devices and adapter.

Addtionally some older SoC's (and potentially newer ones) have different
frontend HW which would allow those devices to be easily supported
in the future by keeping the code specific to the IP separate from the
more generic code.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-11 16:05:53 -03:00
Peter Griffin
c5f5d0f997 [media] c8sectpfe: STiH407/10 Linux DVB demux support
This patch adds support for the c8sectpfe input HW found on
STiH407/410 SoC's.

It currently supports the TS input block, memdma engine
and hw PID filtering blocks of the C8SECTPFE subsystem.

The driver creates one LinuxDVB adapter, and a
demux/dvr/frontend set of devices for each tsin channel
which is specificed in the DT. It has been tested with
multiple tsin channels tuned, locked, and grabbing TS
simultaneously.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-11 16:04:59 -03:00