1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM spi
4
5#if !defined(_TRACE_SPI_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_SPI_H
7
8#include <linux/ktime.h>
9#include <linux/tracepoint.h>
10
11DECLARE_EVENT_CLASS(spi_controller,
12
13	TP_PROTO(struct spi_controller *controller),
14
15	TP_ARGS(controller),
16
17	TP_STRUCT__entry(
18		__field(        int,           bus_num             )
19	),
20
21	TP_fast_assign(
22		__entry->bus_num = controller->bus_num;
23	),
24
25	TP_printk("spi%d", (int)__entry->bus_num)
26
27);
28
29DEFINE_EVENT(spi_controller, spi_controller_idle,
30
31	TP_PROTO(struct spi_controller *controller),
32
33	TP_ARGS(controller)
34
35);
36
37DEFINE_EVENT(spi_controller, spi_controller_busy,
38
39	TP_PROTO(struct spi_controller *controller),
40
41	TP_ARGS(controller)
42
43);
44
45DECLARE_EVENT_CLASS(spi_message,
46
47	TP_PROTO(struct spi_message *msg),
48
49	TP_ARGS(msg),
50
51	TP_STRUCT__entry(
52		__field(        int,            bus_num         )
53		__field(        int,            chip_select     )
54		__field(        struct spi_message *,   msg     )
55	),
56
57	TP_fast_assign(
58		__entry->bus_num = msg->spi->controller->bus_num;
59		__entry->chip_select = msg->spi->chip_select;
60		__entry->msg = msg;
61	),
62
63        TP_printk("spi%d.%d %p", (int)__entry->bus_num,
64		  (int)__entry->chip_select,
65		  (struct spi_message *)__entry->msg)
66);
67
68DEFINE_EVENT(spi_message, spi_message_submit,
69
70	TP_PROTO(struct spi_message *msg),
71
72	TP_ARGS(msg)
73
74);
75
76DEFINE_EVENT(spi_message, spi_message_start,
77
78	TP_PROTO(struct spi_message *msg),
79
80	TP_ARGS(msg)
81
82);
83
84TRACE_EVENT(spi_message_done,
85
86	TP_PROTO(struct spi_message *msg),
87
88	TP_ARGS(msg),
89
90	TP_STRUCT__entry(
91		__field(        int,            bus_num         )
92		__field(        int,            chip_select     )
93		__field(        struct spi_message *,   msg     )
94		__field(        unsigned,       frame           )
95		__field(        unsigned,       actual          )
96	),
97
98	TP_fast_assign(
99		__entry->bus_num = msg->spi->controller->bus_num;
100		__entry->chip_select = msg->spi->chip_select;
101		__entry->msg = msg;
102		__entry->frame = msg->frame_length;
103		__entry->actual = msg->actual_length;
104	),
105
106        TP_printk("spi%d.%d %p len=%u/%u", (int)__entry->bus_num,
107		  (int)__entry->chip_select,
108		  (struct spi_message *)__entry->msg,
109                  (unsigned)__entry->actual, (unsigned)__entry->frame)
110);
111
112/*
113 * consider a buffer valid if non-NULL and if it doesn't match the dummy buffer
114 * that only exist to work with controllers that have SPI_CONTROLLER_MUST_TX or
115 * SPI_CONTROLLER_MUST_RX.
116 */
117#define spi_valid_txbuf(msg, xfer) \
118	(xfer->tx_buf && xfer->tx_buf != msg->spi->controller->dummy_tx)
119#define spi_valid_rxbuf(msg, xfer) \
120	(xfer->rx_buf && xfer->rx_buf != msg->spi->controller->dummy_rx)
121
122DECLARE_EVENT_CLASS(spi_transfer,
123
124	TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
125
126	TP_ARGS(msg, xfer),
127
128	TP_STRUCT__entry(
129		__field(        int,            bus_num         )
130		__field(        int,            chip_select     )
131		__field(        struct spi_transfer *,   xfer   )
132		__field(        int,            len             )
133		__dynamic_array(u8, rx_buf,
134				spi_valid_rxbuf(msg, xfer) ?
135					(xfer->len < 64 ? xfer->len : 64) : 0)
136		__dynamic_array(u8, tx_buf,
137				spi_valid_txbuf(msg, xfer) ?
138					(xfer->len < 64 ? xfer->len : 64) : 0)
139	),
140
141	TP_fast_assign(
142		__entry->bus_num = msg->spi->controller->bus_num;
143		__entry->chip_select = msg->spi->chip_select;
144		__entry->xfer = xfer;
145		__entry->len = xfer->len;
146
147		if (spi_valid_txbuf(msg, xfer))
148			memcpy(__get_dynamic_array(tx_buf),
149			       xfer->tx_buf, __get_dynamic_array_len(tx_buf));
150
151		if (spi_valid_rxbuf(msg, xfer))
152			memcpy(__get_dynamic_array(rx_buf),
153			       xfer->rx_buf, __get_dynamic_array_len(rx_buf));
154	),
155
156	TP_printk("spi%d.%d %p len=%d tx=[%*phD] rx=[%*phD]",
157		  __entry->bus_num, __entry->chip_select,
158		  __entry->xfer, __entry->len,
159		  __get_dynamic_array_len(tx_buf), __get_dynamic_array(tx_buf),
160		  __get_dynamic_array_len(rx_buf), __get_dynamic_array(rx_buf))
161);
162
163DEFINE_EVENT(spi_transfer, spi_transfer_start,
164
165	TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
166
167	TP_ARGS(msg, xfer)
168
169);
170
171DEFINE_EVENT(spi_transfer, spi_transfer_stop,
172
173	TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
174
175	TP_ARGS(msg, xfer)
176
177);
178
179#endif /* _TRACE_POWER_H */
180
181/* This part must be outside protection */
182#include <trace/define_trace.h>
183