linux/sound/hda/trace.h
Takashi Iwai e311782acd ALSA: hda - Re-add tracepoints to HD-audio core driver
Now let's take the basic tracepoints back to the HD-audio driver.
The three bus tracepoints, hda_send_cmd, hda_get_response and
hda_unsol_event are revived but in a slightly different form.
Since we don't assign the card number there, print the bus device name
instead.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-03-23 13:17:58 +01:00

63 lines
1.5 KiB
C

#undef TRACE_SYSTEM
#define TRACE_SYSTEM hda
#if !defined(__HDAC_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define __HDAC_TRACE_H
#include <linux/tracepoint.h>
#include <linux/device.h>
#include <sound/hdaudio.h>
#ifndef HDAC_MSG_MAX
#define HDAC_MSG_MAX 500
#endif
struct hdac_bus;
struct hdac_codec;
TRACE_EVENT(hda_send_cmd,
TP_PROTO(struct hdac_bus *bus, unsigned int cmd),
TP_ARGS(bus, cmd),
TP_STRUCT__entry(__dynamic_array(char, msg, HDAC_MSG_MAX)),
TP_fast_assign(
snprintf(__get_str(msg), HDAC_MSG_MAX,
"[%s:%d] val=0x%08x",
dev_name((bus)->dev), (cmd) >> 28, cmd);
),
TP_printk("%s", __get_str(msg))
);
TRACE_EVENT(hda_get_response,
TP_PROTO(struct hdac_bus *bus, unsigned int addr, unsigned int res),
TP_ARGS(bus, addr, res),
TP_STRUCT__entry(__dynamic_array(char, msg, HDAC_MSG_MAX)),
TP_fast_assign(
snprintf(__get_str(msg), HDAC_MSG_MAX,
"[%s:%d] val=0x%08x",
dev_name((bus)->dev), addr, res);
),
TP_printk("%s", __get_str(msg))
);
TRACE_EVENT(hda_unsol_event,
TP_PROTO(struct hdac_bus *bus, u32 res, u32 res_ex),
TP_ARGS(bus, res, res_ex),
TP_STRUCT__entry(__dynamic_array(char, msg, HDAC_MSG_MAX)),
TP_fast_assign(
snprintf(__get_str(msg), HDAC_MSG_MAX,
"[%s:%d] res=0x%08x, res_ex=0x%08x",
dev_name((bus)->dev), res_ex & 0x0f, res, res_ex);
),
TP_printk("%s", __get_str(msg))
);
#endif /* __HDAC_TRACE_H */
/* This part must be outside protection */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>