269de12bf1
Add a new brcmsmac_msg trace system to enable writing of debug messages to the trace buffer, and add brcms_* macros for storing device debug messages in the trace buffer in addition to the printk log buffer. Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Reviewed-by: Arend van Spriel <arend@broadcom.com> Tested-by: Daniel Wagner <wagi@monom.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
155 lines
3.8 KiB
C
155 lines
3.8 KiB
C
/*
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* Copyright (c) 2011 Broadcom Corporation
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#if !defined(__TRACE_BRCMSMAC_H) || defined(TRACE_HEADER_MULTI_READ)
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#define __TRACE_BRCMSMAC_H
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#include <linux/tracepoint.h>
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#include "mac80211_if.h"
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#ifndef CONFIG_BRCM_TRACING
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#undef TRACE_EVENT
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#define TRACE_EVENT(name, proto, ...) \
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static inline void trace_ ## name(proto) {}
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#undef DECLARE_EVENT_CLASS
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#define DECLARE_EVENT_CLASS(...)
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#undef DEFINE_EVENT
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#define DEFINE_EVENT(evt_class, name, proto, ...) \
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static inline void trace_ ## name(proto) {}
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#endif
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM brcmsmac
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/*
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* We define a tracepoint, its arguments, its printk format and its
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* 'fast binary record' layout.
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*/
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TRACE_EVENT(brcms_timer,
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/* TPPROTO is the prototype of the function called by this tracepoint */
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TP_PROTO(struct brcms_timer *t),
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/*
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* TPARGS(firstarg, p) are the parameters names, same as found in the
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* prototype.
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*/
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TP_ARGS(t),
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/*
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* Fast binary tracing: define the trace record via TP_STRUCT__entry().
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* You can think about it like a regular C structure local variable
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* definition.
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*/
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TP_STRUCT__entry(
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__field(uint, ms)
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__field(uint, set)
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__field(uint, periodic)
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),
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TP_fast_assign(
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__entry->ms = t->ms;
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__entry->set = t->set;
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__entry->periodic = t->periodic;
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),
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TP_printk(
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"ms=%u set=%u periodic=%u",
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__entry->ms, __entry->set, __entry->periodic
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)
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);
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TRACE_EVENT(brcms_dpc,
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TP_PROTO(unsigned long data),
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TP_ARGS(data),
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TP_STRUCT__entry(
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__field(unsigned long, data)
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),
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TP_fast_assign(
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__entry->data = data;
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),
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TP_printk(
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"data=%p",
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(void *)__entry->data
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)
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);
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM brcmsmac_msg
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#define MAX_MSG_LEN 100
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DECLARE_EVENT_CLASS(brcms_msg_event,
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TP_PROTO(struct va_format *vaf),
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TP_ARGS(vaf),
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TP_STRUCT__entry(
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__dynamic_array(char, msg, MAX_MSG_LEN)
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),
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TP_fast_assign(
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WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
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MAX_MSG_LEN, vaf->fmt,
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*vaf->va) >= MAX_MSG_LEN);
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),
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TP_printk("%s", __get_str(msg))
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);
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DEFINE_EVENT(brcms_msg_event, brcms_info,
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TP_PROTO(struct va_format *vaf),
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TP_ARGS(vaf)
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);
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DEFINE_EVENT(brcms_msg_event, brcms_warn,
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TP_PROTO(struct va_format *vaf),
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TP_ARGS(vaf)
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);
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DEFINE_EVENT(brcms_msg_event, brcms_err,
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TP_PROTO(struct va_format *vaf),
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TP_ARGS(vaf)
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);
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DEFINE_EVENT(brcms_msg_event, brcms_crit,
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TP_PROTO(struct va_format *vaf),
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TP_ARGS(vaf)
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);
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TRACE_EVENT(brcms_dbg,
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TP_PROTO(u32 level, const char *func, struct va_format *vaf),
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TP_ARGS(level, func, vaf),
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TP_STRUCT__entry(
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__field(u32, level)
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__string(func, func)
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__dynamic_array(char, msg, MAX_MSG_LEN)
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),
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TP_fast_assign(
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__entry->level = level;
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__assign_str(func, func);
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WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
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MAX_MSG_LEN, vaf->fmt,
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*vaf->va) >= MAX_MSG_LEN);
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),
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TP_printk("%s: %s", __get_str(func), __get_str(msg))
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);
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#endif /* __TRACE_BRCMSMAC_H */
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#ifdef CONFIG_BRCM_TRACING
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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 brcms_trace_events
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#include <trace/define_trace.h>
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#endif /* CONFIG_BRCM_TRACING */
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