include/instrumentation/events/i2c.h

   1 // SPDX-FileCopyrightText: 2016 Simon Marchi <simon.marchi@ericsson.com>
   2 //
   3 // SPDX-License-Identifier: GPL-2.0-only
   4
   5 #undef TRACE_SYSTEM
   6 #define TRACE_SYSTEM i2c
   7
   8 #if !defined(LTTNG_TRACE_I2C_H) || defined(TRACE_HEADER_MULTI_READ)
   9 #define LTTNG_TRACE_I2C_H
  10
  11 #include <lttng/tracepoint-event.h>
  12
  13 /*
  14  * __i2c_transfer() write request
  15  */
  16 LTTNG_TRACEPOINT_EVENT_CODE(i2c_write,
  17
  18         TP_PROTO(const struct i2c_adapter *adap, const struct i2c_msg *msg,
  19                 int num),
  20
  21         TP_ARGS(adap, msg, num),
  22
  23         TP_locvar(
  24                 int extract_sensitive_payload;
  25         ),
  26
  27         TP_code_pre(
  28                 tp_locvar->extract_sensitive_payload =
  29                         LTTNG_READ_ONCE(extract_sensitive_payload);
  30         ),
  31
  32         TP_FIELDS(
  33                 ctf_integer(int, adapter_nr, adap->nr)
  34                 ctf_integer(__u16, msg_nr, num)
  35                 ctf_integer(__u16, addr, msg->addr)
  36                 ctf_integer(__u16, flags, msg->flags)
  37                 ctf_integer(__u16, len, msg->len)
  38                 ctf_sequence_hex(__u8, buf,
  39                                 tp_locvar->extract_sensitive_payload ?
  40                                 msg->buf : NULL,
  41                                 __u16,
  42                                 tp_locvar->extract_sensitive_payload ?
  43                                 msg->len : 0)
  44         ),
  45
  46         TP_code_post()
  47 )
  48
  49 /*
  50  * __i2c_transfer() read request
  51  */
  52 LTTNG_TRACEPOINT_EVENT(i2c_read,
  53
  54         TP_PROTO(const struct i2c_adapter *adap, const struct i2c_msg *msg,
  55                 int num),
  56
  57         TP_ARGS(adap, msg, num),
  58
  59         TP_FIELDS(
  60                 ctf_integer(int, adapter_nr, adap->nr)
  61                 ctf_integer(__u16, msg_nr, num)
  62                 ctf_integer(__u16, addr, msg->addr)
  63                 ctf_integer(__u16, flags, msg->flags)
  64                 ctf_integer(__u16, len, msg->len)
  65         )
  66 )
  67
  68 /*
  69  * __i2c_transfer() read reply
  70  */
  71 LTTNG_TRACEPOINT_EVENT_CODE(i2c_reply,
  72
  73         TP_PROTO(const struct i2c_adapter *adap, const struct i2c_msg *msg,
  74                 int num),
  75
  76         TP_ARGS(adap, msg, num),
  77
  78         TP_locvar(
  79                 int extract_sensitive_payload;
  80         ),
  81
  82         TP_code_pre(
  83                 tp_locvar->extract_sensitive_payload =
  84                         LTTNG_READ_ONCE(extract_sensitive_payload);
  85         ),
  86
  87         TP_FIELDS(
  88                 ctf_integer(int, adapter_nr, adap->nr)
  89                 ctf_integer(__u16, msg_nr, num)
  90                 ctf_integer(__u16, addr, msg->addr)
  91                 ctf_integer(__u16, flags, msg->flags)
  92                 ctf_integer(__u16, len, msg->len)
  93                 ctf_sequence_hex(__u8, buf,
  94                                 tp_locvar->extract_sensitive_payload ?
  95                                 msg->buf : NULL,
  96                                 __u16,
  97                                 tp_locvar->extract_sensitive_payload ?
  98                                 msg->len : 0)
  99         ),
 100
 101         TP_code_post()
 102 )
 103
 104 /*
 105  * __i2c_transfer() result
 106  */
 107 LTTNG_TRACEPOINT_EVENT(i2c_result,
 108
 109         TP_PROTO(const struct i2c_adapter *adap, int num, int ret),
 110
 111         TP_ARGS(adap, num, ret),
 112
 113         TP_FIELDS(
 114                 ctf_integer(int, adapter_nr, adap->nr)
 115                 ctf_integer(__u16, nr_msgs, num)
 116                 ctf_integer(__s16, ret, ret)
 117         )
 118 )
 119
 120 #endif /*  LTTNG_TRACE_I2C_H */
 121
 122 /* This part must be outside protection */
 123 #include <lttng/define_trace.h>