USB data transfers may not work if the buffer is allocated at
the stack. Be sure to use kmalloc on all places where a buffer
is needed.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This will avoid interference with CI and IR I/O operations.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Remove commented test code, remove unused poweroff stuff, and
fix the copyright data.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Several changes were needed to make az6007 to work, producing
the same commands as the original driver. This patch does
that.

While here, be less verbose when debug is not enabled.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Those two settings are different when used with az6007. Add
a config option to enable it.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This driver were written to use a previous solution for MFE at dvb-usb.
Due to the internal API changes, change the binding to work with the
new way.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Use the newly dvb-usb MFE support added by
changeset 9bd9e3bd.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The code still needs to be commented, as there's a mutex
missing at the az6007_read() call. A mutex there is needed,
in order to prevent RC (or CI) calls while other operations
are in progress.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Everything to reset the demod is already at
az6007_frontend_poweron().
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This patch introduces no functional changes. It basically defines
a macro for each different req found at the driver, and cleans the
code to use them, making easier to understand the code.

With regards to the IR handling code, although the original code
doesn't define what's the request, it is clear, from the USB logs,
that 0xc5 is for IR polling.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Use usb_device for those routines, as it allows using them on
all places. While there, rename to better express the meaning.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Move the ngene/ddbridge firmware into their drivers.

There are two reasons for that:
	1) The firmware used there didn't work for a few devices
I tested here (Terratec H5, H6 and H7);
	2) At least Terratec H7 doesn't seem to require a firmware
for it to work.

After this change, if firmware is not specified, the driver will
use a rom-based firmware (this seems to be the case for Terratec
H7, although I need to better check the USB dumps to be sure about
that).

In any case, the firmware seems to be optional, as the DRX-K driver
don't return the firmware load error.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The comments there is wrong.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The header file serves for no purpose and exports some things
that should be static.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

make checkpatch.pl happy
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The mutex is there to protect the I2C gate. However, for some reason,
it is being called twice:

[ 2103.542796] usbcore: registered new interface driver dvb_usb_az6007
[ 2103.772392] az6007: drxk_gate_ctrl: enable
[ 2103.793900] az6007: drxk_gate_ctrl: enable

For now, let's just comment, to allow the driver to run.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

mt2063 uses a one-byte transfer. This requires a special handling
inside the i2c code. Fix it to properly accept i2c reads. This
is needed to make the mt2063 to be detected.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Add some fixes to allow frontend attachment. The patch is not
complete yet, as just the frontend 0 is initialized. So, more
changes will be needed, including some changes at dvb-usb core.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Some changes are needed, in order to make az6007 compile with the
upstream tree. Most of the changes are due to the upstream drxk
module.

Even allowing its compilation, the driver is not working yet.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Import the az6007 driver from Terratec H7 source, as-is.

It won't compile or run, so latter patches are needed in order
to fix it.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>