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ALSA: firewire-motu: unify common tracepoints for both direction 

In ALSA firewire-motu driver, some tracepoints are supported to probe
vendor-specific data fields for SPH and status/control messages in
payload of isochronous packet. At present, the events of tracepoints
are unique each of direction, however the pair of events has the
same structure and print format. It's possible to unify the pair.

This commit unifies the pair. From userspace, direction is specified
by filtering for src/dst fields in the structure.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2019-06-24 18:16:46 +09:00 committed by Takashi Iwai
parent eee22af1ed
commit c5dfd4b885
2 changed files with 20 additions and 58 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
sound/firewire/motu/amdtp-motu-trace.h
View File

@ -18,7 +18,7 @@ static void copy_sph(u32 *frame, __be32 *buffer, unsigned int data_blocks,
static void copy_message(u64 *frames, __be32 *buffer, unsigned int data_blocks,
unsigned int data_block_quadlets);
TRACE_EVENT(in_data_block_sph,
TRACE_EVENT(data_block_sph,
TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
TP_ARGS(s, data_blocks, buffer),
TP_STRUCT__entry(
@ -28,8 +28,13 @@ TRACE_EVENT(in_data_block_sph,
__dynamic_array(u32, tstamps, data_blocks)
),
TP_fast_assign(
__entry->src = fw_parent_device(s->unit)->node_id;
__entry->dst = fw_parent_device(s->unit)->card->node_id;
if (s->direction == AMDTP_IN_STREAM) {
__entry->src = fw_parent_device(s->unit)->node_id;
__entry->dst = fw_parent_device(s->unit)->card->node_id;
} else {
__entry->src = fw_parent_device(s->unit)->card->node_id;
__entry->dst = fw_parent_device(s->unit)->node_id;
}
__entry->data_blocks = data_blocks;
copy_sph(__get_dynamic_array(tstamps), buffer, data_blocks, s->data_block_quadlets);
),
@ -42,31 +47,7 @@ TRACE_EVENT(in_data_block_sph,
)
);
TRACE_EVENT(out_data_block_sph,
TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
TP_ARGS(s, data_blocks, buffer),
TP_STRUCT__entry(
__field(int, src)
__field(int, dst)
__field(unsigned int, data_blocks)
__dynamic_array(u32, tstamps, data_blocks)
),
TP_fast_assign(
__entry->src = fw_parent_device(s->unit)->card->node_id;
__entry->dst = fw_parent_device(s->unit)->node_id;
__entry->data_blocks = data_blocks;
copy_sph(__get_dynamic_array(tstamps), buffer, data_blocks, s->data_block_quadlets);
),
TP_printk(
"%04x %04x %u %s",
__entry->src,
__entry->dst,
__entry->data_blocks,
__print_array(__get_dynamic_array(tstamps), __entry->data_blocks, 4)
)
);
TRACE_EVENT(in_data_block_message,
TRACE_EVENT(data_block_message,
TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
TP_ARGS(s, data_blocks, buffer),
TP_STRUCT__entry(
@ -76,32 +57,13 @@ TRACE_EVENT(in_data_block_message,
__dynamic_array(u64, messages, data_blocks)
),
TP_fast_assign(
__entry->src = fw_parent_device(s->unit)->node_id;
__entry->dst = fw_parent_device(s->unit)->card->node_id;
__entry->data_blocks = data_blocks;
copy_message(__get_dynamic_array(messages), buffer, data_blocks, s->data_block_quadlets);
),
TP_printk(
"%04x %04x %u %s",
__entry->src,
__entry->dst,
__entry->data_blocks,
__print_array(__get_dynamic_array(messages), __entry->data_blocks, 8)
)
);
TRACE_EVENT(out_data_block_message,
TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
TP_ARGS(s, data_blocks, buffer),
TP_STRUCT__entry(
__field(int, src)
__field(int, dst)
__field(unsigned int, data_blocks)
__dynamic_array(u64, messages, data_blocks)
),
TP_fast_assign(
__entry->src = fw_parent_device(s->unit)->card->node_id;
__entry->dst = fw_parent_device(s->unit)->node_id;
if (s->direction == AMDTP_IN_STREAM) {
__entry->src = fw_parent_device(s->unit)->node_id;
__entry->dst = fw_parent_device(s->unit)->card->node_id;
} else {
__entry->src = fw_parent_device(s->unit)->card->node_id;
__entry->dst = fw_parent_device(s->unit)->node_id;
}
__entry->data_blocks = data_blocks;
copy_message(__get_dynamic_array(messages), buffer, data_blocks, s->data_block_quadlets);
),

8
sound/firewire/motu/amdtp-motu.c
View File

@ -306,8 +306,8 @@ static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
struct amdtp_motu *p = s->protocol;
struct snd_pcm_substream *pcm;
trace_in_data_block_sph(s, data_blocks, buffer);
trace_in_data_block_message(s, data_blocks, buffer);
trace_data_block_sph(s, data_blocks, buffer);
trace_data_block_message(s, data_blocks, buffer);
if (p->midi_ports)
read_midi_messages(s, buffer, data_blocks);
@ -384,8 +384,8 @@ static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
write_sph(s, buffer, data_blocks);
trace_out_data_block_sph(s, data_blocks, buffer);
trace_out_data_block_message(s, data_blocks, buffer);
trace_data_block_sph(s, data_blocks, buffer);
trace_data_block_message(s, data_blocks, buffer);
return data_blocks;
}