ALSA: firewire-lib: add tracepoints to dump a part of isochronous packet data

[cascardo/linux.git] / sound / firewire / amdtp-stream-trace.h

diff --git a/sound/firewire/amdtp-stream-trace.h b/sound/firewire/amdtp-stream-trace.h
new file mode 100644 (file)
index 0000000..425d1d7
--- /dev/null
+++ b/sound/firewire/amdtp-stream-trace.h
@@ -0,0 +1,98 @@
+/*
+ * amdtp-stream-trace.h - tracepoint definitions to dump a part of packet data
+ *
+ * Copyright (c) 2016 Takashi Sakamoto
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM           snd_firewire_lib
+
+#if !defined(_AMDTP_STREAM_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _AMDTP_STREAM_TRACE_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(in_packet,
+       TP_PROTO(const struct amdtp_stream *s, u32 cycles, u32 cip_header[2], unsigned int payload_quadlets),
+       TP_ARGS(s, cycles, cip_header, payload_quadlets),
+       TP_STRUCT__entry(
+               __field(unsigned int, second)
+               __field(unsigned int, cycle)
+               __field(int, channel)
+               __field(int, src)
+               __field(int, dest)
+               __field(u32, cip_header0)
+               __field(u32, cip_header1)
+               __field(unsigned int, payload_quadlets)
+               __field(unsigned int, index)
+       ),
+       TP_fast_assign(
+               __entry->second = cycles / CYCLES_PER_SECOND;
+               __entry->cycle = cycles % CYCLES_PER_SECOND;
+               __entry->channel = s->context->channel;
+               __entry->src = fw_parent_device(s->unit)->node_id;
+               __entry->dest = fw_parent_device(s->unit)->card->node_id;
+               __entry->cip_header0 = cip_header[0];
+               __entry->cip_header1 = cip_header[1];
+               __entry->payload_quadlets = payload_quadlets;
+               __entry->index = s->packet_index;
+       ),
+       TP_printk(
+               "%02u %04u %04x %04x %02d %08x %08x %03u %02u",
+               __entry->second,
+               __entry->cycle,
+               __entry->src,
+               __entry->dest,
+               __entry->channel,
+               __entry->cip_header0,
+               __entry->cip_header1,
+               __entry->payload_quadlets,
+               __entry->index)
+);
+
+TRACE_EVENT(out_packet,
+       TP_PROTO(const struct amdtp_stream *s, u32 cycles, __be32 *cip_header, unsigned int payload_length),
+       TP_ARGS(s, cycles, cip_header, payload_length),
+       TP_STRUCT__entry(
+               __field(unsigned int, second)
+               __field(unsigned int, cycle)
+               __field(int, channel)
+               __field(int, src)
+               __field(int, dest)
+               __field(u32, cip_header0)
+               __field(u32, cip_header1)
+               __field(unsigned int, payload_quadlets)
+               __field(unsigned int, index)
+       ),
+       TP_fast_assign(
+               __entry->second = cycles / CYCLES_PER_SECOND;
+               __entry->cycle = cycles % CYCLES_PER_SECOND;
+               __entry->channel = s->context->channel;
+               __entry->src = fw_parent_device(s->unit)->card->node_id;
+               __entry->dest = fw_parent_device(s->unit)->node_id;
+               __entry->cip_header0 = be32_to_cpu(cip_header[0]);
+               __entry->cip_header1 = be32_to_cpu(cip_header[1]);
+               __entry->payload_quadlets = payload_length / 4;
+               __entry->index = s->packet_index;
+       ),
+       TP_printk(
+               "%02u %04u %04x %04x %02d %08x %08x %03u %02u",
+               __entry->second,
+               __entry->cycle,
+               __entry->src,
+               __entry->dest,
+               __entry->channel,
+               __entry->cip_header0,
+               __entry->cip_header1,
+               __entry->payload_quadlets,
+               __entry->index)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH     .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE     amdtp-stream-trace
+#include <trace/define_trace.h>