summaryrefslogtreecommitdiffstats
path: root/include/trace/events/i2c.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /include/trace/events/i2c.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/trace/events/i2c.h')
-rw-r--r--include/trace/events/i2c.h146
1 files changed, 146 insertions, 0 deletions
diff --git a/include/trace/events/i2c.h b/include/trace/events/i2c.h
new file mode 100644
index 000000000..142a23c65
--- /dev/null
+++ b/include/trace/events/i2c.h
@@ -0,0 +1,146 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* I2C message transfer tracepoints
+ *
+ * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM i2c
+
+#if !defined(_TRACE_I2C_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_I2C_H
+
+#include <linux/i2c.h>
+#include <linux/tracepoint.h>
+
+/*
+ * drivers/i2c/i2c-core-base.c
+ */
+extern int i2c_transfer_trace_reg(void);
+extern void i2c_transfer_trace_unreg(void);
+
+/*
+ * __i2c_transfer() write request
+ */
+TRACE_EVENT_FN(i2c_write,
+ TP_PROTO(const struct i2c_adapter *adap, const struct i2c_msg *msg,
+ int num),
+ TP_ARGS(adap, msg, num),
+ TP_STRUCT__entry(
+ __field(int, adapter_nr )
+ __field(__u16, msg_nr )
+ __field(__u16, addr )
+ __field(__u16, flags )
+ __field(__u16, len )
+ __dynamic_array(__u8, buf, msg->len) ),
+ TP_fast_assign(
+ __entry->adapter_nr = adap->nr;
+ __entry->msg_nr = num;
+ __entry->addr = msg->addr;
+ __entry->flags = msg->flags;
+ __entry->len = msg->len;
+ memcpy(__get_dynamic_array(buf), msg->buf, msg->len);
+ ),
+ TP_printk("i2c-%d #%u a=%03x f=%04x l=%u [%*phD]",
+ __entry->adapter_nr,
+ __entry->msg_nr,
+ __entry->addr,
+ __entry->flags,
+ __entry->len,
+ __entry->len, __get_dynamic_array(buf)
+ ),
+ i2c_transfer_trace_reg,
+ i2c_transfer_trace_unreg);
+
+/*
+ * __i2c_transfer() read request
+ */
+TRACE_EVENT_FN(i2c_read,
+ TP_PROTO(const struct i2c_adapter *adap, const struct i2c_msg *msg,
+ int num),
+ TP_ARGS(adap, msg, num),
+ TP_STRUCT__entry(
+ __field(int, adapter_nr )
+ __field(__u16, msg_nr )
+ __field(__u16, addr )
+ __field(__u16, flags )
+ __field(__u16, len )
+ ),
+ TP_fast_assign(
+ __entry->adapter_nr = adap->nr;
+ __entry->msg_nr = num;
+ __entry->addr = msg->addr;
+ __entry->flags = msg->flags;
+ __entry->len = msg->len;
+ ),
+ TP_printk("i2c-%d #%u a=%03x f=%04x l=%u",
+ __entry->adapter_nr,
+ __entry->msg_nr,
+ __entry->addr,
+ __entry->flags,
+ __entry->len
+ ),
+ i2c_transfer_trace_reg,
+ i2c_transfer_trace_unreg);
+
+/*
+ * __i2c_transfer() read reply
+ */
+TRACE_EVENT_FN(i2c_reply,
+ TP_PROTO(const struct i2c_adapter *adap, const struct i2c_msg *msg,
+ int num),
+ TP_ARGS(adap, msg, num),
+ TP_STRUCT__entry(
+ __field(int, adapter_nr )
+ __field(__u16, msg_nr )
+ __field(__u16, addr )
+ __field(__u16, flags )
+ __field(__u16, len )
+ __dynamic_array(__u8, buf, msg->len) ),
+ TP_fast_assign(
+ __entry->adapter_nr = adap->nr;
+ __entry->msg_nr = num;
+ __entry->addr = msg->addr;
+ __entry->flags = msg->flags;
+ __entry->len = msg->len;
+ memcpy(__get_dynamic_array(buf), msg->buf, msg->len);
+ ),
+ TP_printk("i2c-%d #%u a=%03x f=%04x l=%u [%*phD]",
+ __entry->adapter_nr,
+ __entry->msg_nr,
+ __entry->addr,
+ __entry->flags,
+ __entry->len,
+ __entry->len, __get_dynamic_array(buf)
+ ),
+ i2c_transfer_trace_reg,
+ i2c_transfer_trace_unreg);
+
+/*
+ * __i2c_transfer() result
+ */
+TRACE_EVENT_FN(i2c_result,
+ TP_PROTO(const struct i2c_adapter *adap, int num, int ret),
+ TP_ARGS(adap, num, ret),
+ TP_STRUCT__entry(
+ __field(int, adapter_nr )
+ __field(__u16, nr_msgs )
+ __field(__s16, ret )
+ ),
+ TP_fast_assign(
+ __entry->adapter_nr = adap->nr;
+ __entry->nr_msgs = num;
+ __entry->ret = ret;
+ ),
+ TP_printk("i2c-%d n=%u ret=%d",
+ __entry->adapter_nr,
+ __entry->nr_msgs,
+ __entry->ret
+ ),
+ i2c_transfer_trace_reg,
+ i2c_transfer_trace_unreg);
+
+#endif /* _TRACE_I2C_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>