firmware: Refactor by using build_tools/install_firmware.

This is intended to simplify the Makefile and move a large common part into a
subscript. The behavior is the same as it was before.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
build_tools/install_firwmare: Try to extract the .bin file from .tar.gz

This allows a .tar.gz file that is normally downloaded from the server to be
checked directly into a test branch. Now when the firmware is being installed,
it can be extracted from any present .tar.gz.  Again, this is primarily to
simplify testing.

A nice side effect is that when going from a newer version to an older version,
any stale .bin files in the firmware directory will not be installed into
/lib/firmware, but instead the bin file from the *versioned* .tar.gz will always
be installed. This should reduce problems where you have to run "make
dist-clean" when reverting to an older version that has a firmware change.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
wcxb: Print running version when recommending power cycle.

Without this change it's hard to see what is actually running on the card when
the firmware in the flash doesn't match the reported version. This is a
debugging aide.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
wcxb: Reset TDM engine on IO errors.

There are error conditions that the firmware can detect but cannot recover from
without help from the driver. When firmware detects these conditions the
DESC_IO_ERROR bit will be set in the descriptor header to signal that the driver
should reset the TDM engine on the card. Since this is not due to failure of the
host to service the interrupt in time, it does not make sense to increase
latency when these conditions are detected.

Internal-Issue-ID: DAHDI-1087
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
wcxb: Add diagnostic message if DMA retries are increasing when DEBUG is defined.

There are some platforms where the DMA operation to the host does not complete
within the required 50us. When this happens some versions of the firmware will
issue a retry and increment the retry field in the descriptor status word.

Now if this driver is configured in DEBUG mode, the presence of these retries
will be printed to the kernel log as a potential troubleshooting aide.

Internal-Issue-ID: DAHDI-1087
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
wcte13xp: Update firmware for TE133/TE131 to 780019

This firmware image is able to handle system conditions that would result in
spans going down and then coming back intermittently.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
wcaxx: Update firmware for A8B/A4B to 1d0019/b0019.

These firmware images can handle system conditions that would previously result
in transmitted audio being intermittently silenced and then unsilenced.

Internal-Issue-ID: DAHDI-1087
Signed-off-by: Shaun Ruffell <sruffell@digium.com>
wcte43x: Update firmware for TE435 / TE235 to e0019.

This firmware image is able to handle system conditions that would result in
spans internmittenly going down and recovering.

Internal-Issue-ID: DAHDI-1087
Signed-off-by: Shaun Ruffell <sruffell@digium.com>