c6b0b9e65f
MOTU units transfer/receive messages in each data block of their isochronous packet payload. A part of content in the message is cleard for MIDI message transmission, while the rest is unknown yet. Additional features are required to assist users and developers to reveal the details. This commit adds tracepoints for the purpose. The tracepoints are designed for MOTU's protocol version 2 and 3 (Protocol version 1 is not upstreamed yet). In the tracepoints, events are probed to gather first two 24 bit data chunks of each data block. The chunks are formatted into elements of 64 bit array with padding in MSB. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
/*
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* amdtp-motu-trace.h - tracepoint definitions to dump a part of packet data
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*
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* Copyright (c) 2017 Takashi Sakamoto
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* Licensed under the terms of the GNU General Public License, version 2.
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*/
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM snd_firewire_motu
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#if !defined(_SND_FIREWIRE_MOTU_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _SND_FIREWIRE_MOTU_TRACE_H
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#include <linux/tracepoint.h>
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static void copy_sph(u32 *frame, __be32 *buffer, unsigned int data_blocks,
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unsigned int data_block_quadlets);
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static void copy_message(u64 *frames, __be32 *buffer, unsigned int data_blocks,
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unsigned int data_block_quadlets);
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TRACE_EVENT(in_data_block_sph,
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TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
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TP_ARGS(s, data_blocks, buffer),
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TP_STRUCT__entry(
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__field(int, src)
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__field(int, dst)
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__field(unsigned int, data_blocks)
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__dynamic_array(u32, tstamps, data_blocks)
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),
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TP_fast_assign(
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__entry->src = fw_parent_device(s->unit)->node_id;
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__entry->dst = fw_parent_device(s->unit)->card->node_id;
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__entry->data_blocks = data_blocks;
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copy_sph(__get_dynamic_array(tstamps), buffer, data_blocks, s->data_block_quadlets);
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),
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TP_printk(
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"%04x %04x %u %s",
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__entry->src,
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__entry->dst,
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__entry->data_blocks,
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__print_array(__get_dynamic_array(tstamps), __entry->data_blocks, 4)
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)
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);
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TRACE_EVENT(out_data_block_sph,
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TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
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TP_ARGS(s, data_blocks, buffer),
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TP_STRUCT__entry(
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__field(int, src)
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__field(int, dst)
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__field(unsigned int, data_blocks)
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__dynamic_array(u32, tstamps, data_blocks)
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),
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TP_fast_assign(
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__entry->src = fw_parent_device(s->unit)->card->node_id;
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__entry->dst = fw_parent_device(s->unit)->node_id;
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__entry->data_blocks = data_blocks;
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copy_sph(__get_dynamic_array(tstamps), buffer, data_blocks, s->data_block_quadlets);
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),
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TP_printk(
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"%04x %04x %u %s",
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__entry->src,
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__entry->dst,
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__entry->data_blocks,
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__print_array(__get_dynamic_array(tstamps), __entry->data_blocks, 4)
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)
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);
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TRACE_EVENT(in_data_block_message,
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TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
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TP_ARGS(s, data_blocks, buffer),
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TP_STRUCT__entry(
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__field(int, src)
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__field(int, dst)
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__field(unsigned int, data_blocks)
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__dynamic_array(u64, messages, data_blocks)
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),
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TP_fast_assign(
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__entry->src = fw_parent_device(s->unit)->node_id;
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__entry->dst = fw_parent_device(s->unit)->card->node_id;
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__entry->data_blocks = data_blocks;
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copy_message(__get_dynamic_array(messages), buffer, data_blocks, s->data_block_quadlets);
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),
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TP_printk(
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"%04x %04x %u %s",
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__entry->src,
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__entry->dst,
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__entry->data_blocks,
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__print_array(__get_dynamic_array(messages), __entry->data_blocks, 8)
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)
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);
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TRACE_EVENT(out_data_block_message,
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TP_PROTO(struct amdtp_stream *s, unsigned int data_blocks, __be32 *buffer),
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TP_ARGS(s, data_blocks, buffer),
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TP_STRUCT__entry(
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__field(int, src)
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__field(int, dst)
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__field(unsigned int, data_blocks)
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__dynamic_array(u64, messages, data_blocks)
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),
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TP_fast_assign(
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__entry->src = fw_parent_device(s->unit)->card->node_id;
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__entry->dst = fw_parent_device(s->unit)->node_id;
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__entry->data_blocks = data_blocks;
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copy_message(__get_dynamic_array(messages), buffer, data_blocks, s->data_block_quadlets);
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),
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TP_printk(
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"%04x %04x %u %s",
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__entry->src,
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__entry->dst,
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__entry->data_blocks,
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__print_array(__get_dynamic_array(messages), __entry->data_blocks, 8)
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)
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);
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#endif
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH .
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#undef TRACE_INCLUDE_FILE
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#define TRACE_INCLUDE_FILE amdtp-motu-trace
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#include <trace/define_trace.h>
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