drivers/usb/cdns3/cdnsp-trace.h

Source file repositories/reference/linux-study-clean/drivers/usb/cdns3/cdnsp-trace.h

File Facts

System
Linux kernel
Corpus path
drivers/usb/cdns3/cdnsp-trace.h
Extension
.h
Size
21356 bytes
Lines
802
Domain
Driver Families
Bucket
drivers/usb
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#undef TRACE_SYSTEM
#define TRACE_SYSTEM cdnsp-dev

/*
 * The TRACE_SYSTEM_VAR defaults to TRACE_SYSTEM, but must be a
 * legitimate C variable. It is not exported to user space.
 */
#undef TRACE_SYSTEM_VAR
#define TRACE_SYSTEM_VAR cdnsp_dev

#if !defined(__CDNSP_DEV_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define __CDNSP_DEV_TRACE_H

#include <linux/tracepoint.h>
#include "cdnsp-gadget.h"
#include "cdnsp-debug.h"

/*
 * There is limitation for single buffer size in TRACEPOINT subsystem.
 * By default TRACE_BUF_SIZE is 1024, so no all data will be logged.
 * To show more data this must be increased. In most cases the default
 * value is sufficient.
 */
#define CDNSP_MSG_MAX 500

DECLARE_EVENT_CLASS(cdnsp_log_ep,
	TP_PROTO(struct cdnsp_ep *pep, u32 stream_id),
	TP_ARGS(pep, stream_id),
	TP_STRUCT__entry(
		__string(name, pep->name)
		__field(unsigned int, state)
		__field(u32, stream_id)
		__field(u8, enabled)
		__field(unsigned int, num_streams)
		__field(int, td_count)
		__field(u8, first_prime_det)
		__field(u8, drbls_count)
	),
	TP_fast_assign(
		__assign_str(name);
		__entry->state = pep->ep_state;
		__entry->stream_id = stream_id;
		__entry->enabled = pep->ep_state & EP_HAS_STREAMS;
		__entry->num_streams = pep->stream_info.num_streams;
		__entry->td_count = pep->stream_info.td_count;
		__entry->first_prime_det = pep->stream_info.first_prime_det;
		__entry->drbls_count = pep->stream_info.drbls_count;
	),
	TP_printk("%s: SID: %08x, ep state: %x, stream: enabled: %d num %d "
		  "tds %d, first prime: %d drbls %d",
		  __get_str(name), __entry->stream_id, __entry->state,
		  __entry->enabled, __entry->num_streams, __entry->td_count,
		  __entry->first_prime_det, __entry->drbls_count)
);

DEFINE_EVENT(cdnsp_log_ep, cdnsp_tr_drbl,
	TP_PROTO(struct cdnsp_ep *pep, u32 stream_id),
	TP_ARGS(pep, stream_id)
);

DEFINE_EVENT(cdnsp_log_ep, cdnsp_wait_for_prime,
	TP_PROTO(struct cdnsp_ep *pep, u32 stream_id),
	TP_ARGS(pep, stream_id)
);

DEFINE_EVENT(cdnsp_log_ep, cdnsp_ep_list_empty_with_skip,
	TP_PROTO(struct cdnsp_ep *pep, u32 stream_id),
	TP_ARGS(pep, stream_id)
);

DEFINE_EVENT(cdnsp_log_ep, cdnsp_ep_enable_end,
	TP_PROTO(struct cdnsp_ep *pep, u32 stream_id),
	TP_ARGS(pep, stream_id)
);

DEFINE_EVENT(cdnsp_log_ep, cdnsp_ep_disable_end,
	TP_PROTO(struct cdnsp_ep *pep, u32 stream_id),
	TP_ARGS(pep, stream_id)
);

DEFINE_EVENT(cdnsp_log_ep, cdnsp_ep_busy_try_halt_again,
	TP_PROTO(struct cdnsp_ep *pep, u32 stream_id),
	TP_ARGS(pep, stream_id)
);

DECLARE_EVENT_CLASS(cdnsp_log_enable_disable,
	TP_PROTO(int set),
	TP_ARGS(set),
	TP_STRUCT__entry(
		__field(int, set)

Annotation

Implementation Notes