instrumentation/events/lttng-module/i2c.h

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