For PCM format the supported format is mono/stereo, S16_LE/S32_LE,
and 8KHz-192kHz frequency.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
One big buffer shared between A core and DSP to buffer audio
bitstram. So A core can sleep more time when DSP is playing
buffered audio bit stream.
Signed-off-by: Bing Song <bing.song@nxp.com>
Before the parameters getting from dsp is not right, now correct it.
Signed-off-by: Zhang Peng <peng.zhang_8@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Modified parameter msg in dsp, make sure still can transfer right msg
between DSP and user, modified parameter msg in kernel.
Signed-off-by: Zhang Peng <peng_zhang_8@nxp.com>
We must find a way to no longer touch resources after they are
cleand up.
Now, after a stress test we get the following crash:
[ 2156.863772] fsl-dsp 596e8000.dsp: xf_pool_alloc failed
[ 2156.869337] Unable to handle kernel NULL pointer dereference at
virtual address 00000060
[ 2157.148594] [<ffff000008d8839c>] _raw_spin_lock+0x14/0x48
[ 2157.153995] [<ffff000008b3e0b8>] xf_cmd_send_recv_complete+0x40/0xf0
[ 2157.160354] [<ffff000008b3e470>] xf_close+0x40/0x88
[ 2157.165239] [<ffff000008b3f7a4>] xaf_comp_delete+0x5c/0x70
[ 2157.170730] [<ffff000008b40530>] dsp_platform_compr_free+0xa0/0xe8
[ 2157.176917] [<ffff000008b287fc>] soc_compr_free_fe+0x144/0x1a0
[ 2157.182754] [<ffff000008b11b24>] snd_compr_free+0x64/0x98
This happens because:
1) dsp_platform_process work handler waits in a loop for
messages to arrive.
2) when cplay process finishes it cleans up most of the
resources.
3) when another cplay process starts it reinitializes the
resources including queues for example.
4) a message will be generated and kernel will crash because
dsp_platform_process uses the older queues.
A solution for this is to make sure dsp_platform_process work loop
is stopped at cleanup time.
We use is_active state and signal dsp_platform_process handler to
finish because we are on the cleanup path.
While at it replace cancel_work with cancel_work sync to be sure
that work handler ends before going on with the rest of the cleanup.
Reviewed-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
In case of error no cleanup was done leaving thus reasources
in an undefined state.
This can cause crashes like this:
[ 34.259281] fsl-dsp 596e8000.dsp: load codec wrap lib error
[ 34.266333] fsl-dsp 596e8000.dsp: create component failed, type = 1,
err = -2
[ 34.273493] err pool alloc ret = -2
[ 34.298363] Unable to handle kernel NULL pointer dereference at
virtual address 00000000
... which happens when lib_dsp_codec_wrap.so is not present.
While at it, we also realign some lines of code in order to avoid
going over the 80 characters limit that Linux kernel coding style
preaches on.
Reviewed-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Shengjiu Wang