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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/include/trace/events/firewire_ohci.h
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// SPDX-License-Identifier: GPL-2.0-or-later

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// Copyright (c) 2024 Takashi Sakamoto

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#undef TRACE_SYSTEM

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#define TRACE_SYSTEM	firewire_ohci

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#if !defined(_FIREWIRE_OHCI_TRACE_EVENT_H) || defined(TRACE_HEADER_MULTI_READ)

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#define _FIREWIRE_OHCI_TRACE_EVENT_H

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#include <linux/tracepoint.h>

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// Some macros and helper functions are defined in 'drivers/firewire/ohci.c'.

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TRACE_EVENT(irqs,

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	TP_PROTO(unsigned int card_index, u32 events),

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	TP_ARGS(card_index, events),

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	TP_STRUCT__entry(

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		__field(u8, card_index)

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		__field(u32, events)

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	),

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	TP_fast_assign(

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		__entry->card_index = card_index;

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		__entry->events = events;

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	),

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	TP_printk(

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		"card_index=%u events=%s",

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		__entry->card_index,

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		__print_flags(__entry->events, "|",

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			{ OHCI1394_selfIDComplete,	"selfIDComplete" },

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			{ OHCI1394_RQPkt,		"RQPkt" },

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			{ OHCI1394_RSPkt,		"RSPkt" },

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			{ OHCI1394_reqTxComplete,	"reqTxComplete" },

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			{ OHCI1394_respTxComplete,	"respTxComplete" },

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			{ OHCI1394_isochRx,		"isochRx" },

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			{ OHCI1394_isochTx,		"isochTx" },

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			{ OHCI1394_postedWriteErr,	"postedWriteErr" },

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			{ OHCI1394_cycleTooLong,	"cycleTooLong" },

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			{ OHCI1394_cycle64Seconds,	"cycle64Seconds" },

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			{ OHCI1394_cycleInconsistent,	"cycleInconsistent" },

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			{ OHCI1394_regAccessFail,	"regAccessFail" },

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			{ OHCI1394_unrecoverableError,	"unrecoverableError" },

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			{ OHCI1394_busReset,		"busReset" }

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		)

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	)

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);

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#define QUADLET_SIZE	4

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#define SELF_ID_COUNT_IS_ERROR(reg)	\

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	(!!(((reg) & OHCI1394_SelfIDCount_selfIDError_MASK) >> OHCI1394_SelfIDCount_selfIDError_SHIFT))

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#define SELF_ID_COUNT_GET_GENERATION(reg)	\

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	(((reg) & OHCI1394_SelfIDCount_selfIDGeneration_MASK) >> OHCI1394_SelfIDCount_selfIDGeneration_SHIFT)

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#define SELF_ID_RECEIVE_Q0_GET_GENERATION(quadlet)	\

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	(((quadlet) & OHCI1394_SELF_ID_RECEIVE_Q0_GENERATION_MASK) >> OHCI1394_SELF_ID_RECEIVE_Q0_GENERATION_SHIFT)

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#define SELF_ID_RECEIVE_Q0_GET_TIMESTAMP(quadlet)	\

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	(((quadlet) & OHCI1394_SELF_ID_RECEIVE_Q0_TIMESTAMP_MASK) >> OHCI1394_SELF_ID_RECEIVE_Q0_TIMESTAMP_SHIFT)

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TRACE_EVENT(self_id_complete,

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	TP_PROTO(unsigned int card_index, u32 reg, const __le32 *self_id_receive, bool has_be_header_quirk),

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	TP_ARGS(card_index, reg, self_id_receive, has_be_header_quirk),

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	TP_STRUCT__entry(

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		__field(u8, card_index)

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		__field(u32, reg)

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		__dynamic_array(u32, self_id_receive, ohci1394_self_id_count_get_size(reg))

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	),

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	TP_fast_assign(

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		__entry->card_index = card_index;

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		__entry->reg = reg;

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		{

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			u32 *ptr = __get_dynamic_array(self_id_receive);

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			int i;

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			for (i = 0; i < __get_dynamic_array_len(self_id_receive) / QUADLET_SIZE; ++i)

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				ptr[i] = cond_le32_to_cpu(self_id_receive[i], has_be_header_quirk);

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		}

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	),

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	TP_printk(

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		"card_index=%u is_error=%s generation_at_bus_reset=%u generation_at_completion=%u timestamp=0x%04x packet_data=%s",

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		__entry->card_index,

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		SELF_ID_COUNT_IS_ERROR(__entry->reg) ? "true" : "false",

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		SELF_ID_COUNT_GET_GENERATION(__entry->reg),

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		SELF_ID_RECEIVE_Q0_GET_GENERATION(((const u32 *)__get_dynamic_array(self_id_receive))[0]),

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		SELF_ID_RECEIVE_Q0_GET_TIMESTAMP(((const u32 *)__get_dynamic_array(self_id_receive))[0]),

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		__print_array(((const u32 *)__get_dynamic_array(self_id_receive)) + 1,

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			      (__get_dynamic_array_len(self_id_receive) / QUADLET_SIZE) - 1, QUADLET_SIZE)

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	)

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);

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#undef SELF_ID_COUNT_IS_ERROR

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#undef SELF_ID_COUNT_GET_GENERATION

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#undef SELF_ID_RECEIVE_Q0_GET_GENERATION

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#undef SELF_ID_RECEIVE_Q0_GET_TIMESTAMP

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#undef QUADLET_SIZE

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#endif // _FIREWIRE_OHCI_TRACE_EVENT_H

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#include <trace/define_trace.h>

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