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239 lines · 5.9 KiB

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
45TRACE_EVENT(spi_setup,
46 TP_PROTO(struct spi_device *spi, int status),
47 TP_ARGS(spi, status),
48
49 TP_STRUCT__entry(
50 __field(int, bus_num)
51 __field(int, chip_select)
52 __field(unsigned long, mode)
53 __field(unsigned int, bits_per_word)
54 __field(unsigned int, max_speed_hz)
55 __field(int, status)
56 ),
57
58 TP_fast_assign(
59 __entry->bus_num = spi->controller->bus_num;
60 __entry->chip_select = spi_get_chipselect(spi, 0);
61 __entry->mode = spi->mode;
62 __entry->bits_per_word = spi->bits_per_word;
63 __entry->max_speed_hz = spi->max_speed_hz;
64 __entry->status = status;
65 ),
66
67 TP_printk("spi%d.%d setup mode %lu, %s%s%s%s%u bits/w, %u Hz max --> %d",
68 __entry->bus_num, __entry->chip_select,
69 (__entry->mode & SPI_MODE_X_MASK),
70 (__entry->mode & SPI_CS_HIGH) ? "cs_high, " : "",
71 (__entry->mode & SPI_LSB_FIRST) ? "lsb, " : "",
72 (__entry->mode & SPI_3WIRE) ? "3wire, " : "",
73 (__entry->mode & SPI_LOOP) ? "loopback, " : "",
74 __entry->bits_per_word, __entry->max_speed_hz,
75 __entry->status)
76);
77
78TRACE_EVENT(spi_set_cs,
79 TP_PROTO(struct spi_device *spi, bool enable),
80 TP_ARGS(spi, enable),
81
82 TP_STRUCT__entry(
83 __field(int, bus_num)
84 __field(int, chip_select)
85 __field(unsigned long, mode)
86 __field(bool, enable)
87 ),
88
89 TP_fast_assign(
90 __entry->bus_num = spi->controller->bus_num;
91 __entry->chip_select = spi_get_chipselect(spi, 0);
92 __entry->mode = spi->mode;
93 __entry->enable = enable;
94 ),
95
96 TP_printk("spi%d.%d %s%s",
97 __entry->bus_num, __entry->chip_select,
98 __entry->enable ? "activate" : "deactivate",
99 (__entry->mode & SPI_CS_HIGH) ? ", cs_high" : "")
100);
101
102DECLARE_EVENT_CLASS(spi_message,
103
104 TP_PROTO(struct spi_message *msg),
105
106 TP_ARGS(msg),
107
108 TP_STRUCT__entry(
109 __field( int, bus_num )
110 __field( int, chip_select )
111 __field( struct spi_message *, msg )
112 ),
113
114 TP_fast_assign(
115 __entry->bus_num = msg->spi->controller->bus_num;
116 __entry->chip_select = spi_get_chipselect(msg->spi, 0);
117 __entry->msg = msg;
118 ),
119
120 TP_printk("spi%d.%d %p", (int)__entry->bus_num,
121 (int)__entry->chip_select,
122 (struct spi_message *)__entry->msg)
123);
124
125DEFINE_EVENT(spi_message, spi_message_submit,
126
127 TP_PROTO(struct spi_message *msg),
128
129 TP_ARGS(msg)
130
131);
132
133DEFINE_EVENT(spi_message, spi_message_start,
134
135 TP_PROTO(struct spi_message *msg),
136
137 TP_ARGS(msg)
138
139);
140
141TRACE_EVENT(spi_message_done,
142
143 TP_PROTO(struct spi_message *msg),
144
145 TP_ARGS(msg),
146
147 TP_STRUCT__entry(
148 __field( int, bus_num )
149 __field( int, chip_select )
150 __field( struct spi_message *, msg )
151 __field( unsigned, frame )
152 __field( unsigned, actual )
153 ),
154
155 TP_fast_assign(
156 __entry->bus_num = msg->spi->controller->bus_num;
157 __entry->chip_select = spi_get_chipselect(msg->spi, 0);
158 __entry->msg = msg;
159 __entry->frame = msg->frame_length;
160 __entry->actual = msg->actual_length;
161 ),
162
163 TP_printk("spi%d.%d %p len=%u/%u", (int)__entry->bus_num,
164 (int)__entry->chip_select,
165 (struct spi_message *)__entry->msg,
166 (unsigned)__entry->actual, (unsigned)__entry->frame)
167);
168
169/*
170 * Consider a buffer valid if non-NULL and if it doesn't match the dummy buffer
171 * that only exist to work with controllers that have SPI_CONTROLLER_MUST_TX or
172 * SPI_CONTROLLER_MUST_RX.
173 */
174#define spi_valid_txbuf(msg, xfer) \
175 (xfer->tx_buf && xfer->tx_buf != msg->spi->controller->dummy_tx)
176#define spi_valid_rxbuf(msg, xfer) \
177 (xfer->rx_buf && xfer->rx_buf != msg->spi->controller->dummy_rx)
178
179DECLARE_EVENT_CLASS(spi_transfer,
180
181 TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
182
183 TP_ARGS(msg, xfer),
184
185 TP_STRUCT__entry(
186 __field( int, bus_num )
187 __field( int, chip_select )
188 __field( struct spi_transfer *, xfer )
189 __field( int, len )
190 __dynamic_array(u8, rx_buf,
191 spi_valid_rxbuf(msg, xfer) ?
192 (xfer->len < 64 ? xfer->len : 64) : 0)
193 __dynamic_array(u8, tx_buf,
194 spi_valid_txbuf(msg, xfer) ?
195 (xfer->len < 64 ? xfer->len : 64) : 0)
196 ),
197
198 TP_fast_assign(
199 __entry->bus_num = msg->spi->controller->bus_num;
200 __entry->chip_select = spi_get_chipselect(msg->spi, 0);
201 __entry->xfer = xfer;
202 __entry->len = xfer->len;
203
204 if (spi_valid_txbuf(msg, xfer))
205 memcpy(__get_dynamic_array(tx_buf),
206 xfer->tx_buf, __get_dynamic_array_len(tx_buf));
207
208 if (spi_valid_rxbuf(msg, xfer))
209 memcpy(__get_dynamic_array(rx_buf),
210 xfer->rx_buf, __get_dynamic_array_len(rx_buf));
211 ),
212
213 TP_printk("spi%d.%d %p len=%d tx=[%*phD] rx=[%*phD]",
214 __entry->bus_num, __entry->chip_select,
215 __entry->xfer, __entry->len,
216 __get_dynamic_array_len(tx_buf), __get_dynamic_array(tx_buf),
217 __get_dynamic_array_len(rx_buf), __get_dynamic_array(rx_buf))
218);
219
220DEFINE_EVENT(spi_transfer, spi_transfer_start,
221
222 TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
223
224 TP_ARGS(msg, xfer)
225
226);
227
228DEFINE_EVENT(spi_transfer, spi_transfer_stop,
229
230 TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
231
232 TP_ARGS(msg, xfer)
233
234);
235
236#endif /* _TRACE_POWER_H */
237
238/* This part must be outside protection */
239#include <trace/define_trace.h>