- 21 10月, 2013 19 次提交
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由 Clemens Ladisch 提交于
Reorganize the initialization order so that the driver can receive notifications earlier. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
In preparation for sample rate selection support, ensure that the driver knows about the device's clock capabilities. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Stefan Richter 提交于
Avoid a lock inversion between dice->mutex and pcm->open_mutex. Signed-off-by: NStefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
The pcm field was not actually used. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Since commit f2b3614c (Don't check DMA time-out too shortly), we need no longer to restrict the period length to less than 10 s. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
When a bus reset happens, the enable register is automatically cleared, so we do not need to clear it manually when stopping the stream. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Add a flag to snd_fw_transaction() to allow it to abort when a bus reset happens. This removes most of the duplicated error handling loops that were required around calls to the low-level fw_run_transaction(). Also add a flag to suppress error messages; errors are expected when we attempt to clean up after the device was unplugged. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Instead of reading two consecutive register with two quadlet requests, use one block read request. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Change the AMDTP streaming code to handle the non-standard stream format that DICE devices use at sample rates greater than 96 kHz. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
DICE devices do not have a unique specifier ID in their unit directory (it's always the same as the device vendor's ID), so rely on just the version ID for driver loading, and use a heuristic in the probe callback to detect actual DICE devices. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Move the DICE interface symbols into a separate header file, and add more documentation. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Introduce the helper function amdtp_out_stream_running(). This makes many checks in amdtp.c clearer and frees the device drivers from having to track this with a separate variable. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Ensure that misbehaving or aborted userspace programs do not accidentally keep the lock. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Implement the hwdep locking and notification mechanisms. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
When aborting a PCM stream, the xrun is signaled only if the stream is running. When disconnecting a PCM stream, calling snd_card_disconnect() too early would change the stream into a non-running state and thus prevent the xrun from being noticed by user space. To prevent this, move the snd_card_disconnect() call after the xrun. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Allow AMDTP output streams to use blocking mode. Use it for DICE devices, because the old DICE-II chip will in some cases not be able to lock to non-blocking streams (erratum E7). Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
The notification bits are not of general interest; log them only when debugging. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
Instead of forcing a constant 44.1 kHz, read the current sample rate from the device when opening the PCM device. Actually changing the sample rate requires some separate controller application. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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由 Clemens Ladisch 提交于
After a bus reset, do not stop the stream completely to avoid having to reconfigure the device when restarting the stream. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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- 18 10月, 2013 1 次提交
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由 Clemens Ladisch 提交于
As a start point for further development, this is an incomplete driver for DICE devices: - only playback (so no clock source except the bus clock) - only 44.1 kHz - no MIDI - recovery after bus reset is slow - hwdep device is created, but not actually implemented Contains compilation fixes by Stefan Richter. Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
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