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>