Create a macro implementing a standard method to share state amongst
multiple instances of a hybrid tuner object.

Also, prepare tuner_foo printk macros for the removal of PREFIX
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

- remove dependency of tda8290 module on struct tuner
- move tuner_foo printk macros from tuner-driver.h into tuner-core.c
- clean up #includes of tuner-i2c.h / tuner-driver.h
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Issuing register reads as a separate address write and data read transactions
means that other I2C activity could occur in between and state could get out
of sync.  Issue both the write and read in a single transaction so that the
i2c layer can prevent other users accessing the bus until we are complete.
Signed-off-by: NChris Pascoe <c.pascoe@itee.uq.edu.au>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Some tuners, like xc3028, need to print error messages. Instead of declaring
local macros, create a tuner global macro for printing tuner errors.

To preserve CodingStyle on all tuner_macros, a few CodingStyle violations were
fixed at the other macros:
	- lines with more than 80 columns
	- two statements at the same line

The patch also removes the CodingStyle violation of having emacs declarations
inside de source code (CodingStyle chapter 18).
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

Signed-off-by: NHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>

To ease the conversion of the analog tuner sub-drivers into dvb_frontend
style tuner modules, we must remove the i2c_client interface.

dvb_frontend style tuner modules use i2c_transfer directly on the i2c_adapter.

This change only alters the interface between tuner.ko and the tuner
sub-drivers. The v4l2 / i2c_client interface to tuner.ko remains intact.

This patch adds inline functions tuner_i2c_xfer_send, and tuner_i2c_xfer_recv,
to replace i2c_master_send and i2c_master_recv inside the tuner sub-drivers.
Signed-off-by: NMichael Krufky <mkrufky@linuxtv.org>
Acked-by: NHans Verkuil <hverkuil@xs4all.nl>
Acked-by: NMike Isely <isely@pobox.com>
Acked-by: NSteven Toth <stoth@hauppauge.com>
Acked-by: NPatrick Boettcher <pb@linuxtv.org>
Acked-by: NJarod Wilson <jwilson@redhat.com>
Acked-by: NTrent Piepho <xyzzy@speakeasy.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@infradead.org>