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media: allegro: print message on mcu error 

The codec firmware uses error codes to report errors during the
configuration of a channel or while encoding a frame. Translate them
into human readable strings for debugging.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Michael Tretter 2020-03-16 16:26:21 +01:00 committed by Mauro Carvalho Chehab
parent 75a0359f29
commit 04d2a11018
1 changed files with 58 additions and 4 deletions
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62
drivers/staging/media/allegro-dvt/allegro-core.c
View File

@ -572,6 +572,56 @@ static inline bool channel_exists(struct allegro_channel *channel)
return channel->mcu_channel_id != -1;
}
#define AL_ERROR 0x80
#define AL_ERR_INIT_FAILED 0x81
#define AL_ERR_NO_FRAME_DECODED 0x82
#define AL_ERR_RESOLUTION_CHANGE 0x85
#define AL_ERR_NO_MEMORY 0x87
#define AL_ERR_STREAM_OVERFLOW 0x88
#define AL_ERR_TOO_MANY_SLICES 0x89
#define AL_ERR_BUF_NOT_READY 0x8c
#define AL_ERR_NO_CHANNEL_AVAILABLE 0x8d
#define AL_ERR_RESOURCE_UNAVAILABLE 0x8e
#define AL_ERR_NOT_ENOUGH_CORES 0x8f
#define AL_ERR_REQUEST_MALFORMED 0x90
#define AL_ERR_CMD_NOT_ALLOWED 0x91
#define AL_ERR_INVALID_CMD_VALUE 0x92
static inline const char *allegro_err_to_string(unsigned int err)
{
switch (err) {
case AL_ERR_INIT_FAILED:
return "initialization failed";
case AL_ERR_NO_FRAME_DECODED:
return "no frame decoded";
case AL_ERR_RESOLUTION_CHANGE:
return "resolution change";
case AL_ERR_NO_MEMORY:
return "out of memory";
case AL_ERR_STREAM_OVERFLOW:
return "stream buffer overflow";
case AL_ERR_TOO_MANY_SLICES:
return "too many slices";
case AL_ERR_BUF_NOT_READY:
return "buffer not ready";
case AL_ERR_NO_CHANNEL_AVAILABLE:
return "no channel available";
case AL_ERR_RESOURCE_UNAVAILABLE:
return "resource unavailable";
case AL_ERR_NOT_ENOUGH_CORES:
return "not enough cores";
case AL_ERR_REQUEST_MALFORMED:
return "request malformed";
case AL_ERR_CMD_NOT_ALLOWED:
return "command not allowed";
case AL_ERR_INVALID_CMD_VALUE:
return "invalid command value";
case AL_ERROR:
default:
return "unknown error";
}
}
static unsigned int estimate_stream_size(unsigned int width,
unsigned int height)
{
@ -1488,8 +1538,10 @@ static void allegro_channel_finish_frame(struct allegro_channel *channel,
if (msg->error_code) {
v4l2_err(&dev->v4l2_dev,
"channel %d: error while encoding frame: %x\n",
channel->mcu_channel_id, msg->error_code);
"channel %d: failed to encode frame: %s (%x)\n",
channel->mcu_channel_id,
allegro_err_to_string(msg->error_code),
msg->error_code);
goto err;
}
@ -1632,8 +1684,10 @@ allegro_handle_create_channel(struct allegro_dev *dev,
if (msg->error_code) {
v4l2_err(&dev->v4l2_dev,
"user %d: mcu failed to create channel: error %x\n",
channel->user_id, msg->error_code);
"user %d: mcu failed to create channel: %s (%x)\n",
channel->user_id,
allegro_err_to_string(msg->error_code),
msg->error_code);
err = -EIO;
goto out;
}