CasperSecurity
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM spi
#if !defined(_TRACE_SPI_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_SPI_H
#include <linux/ktime.h>
#include <linux/tracepoint.h>
DECLARE_EVENT_CLASS(spi_controller,
TP_PROTO(struct spi_controller *controller),
TP_ARGS(controller),
TP_STRUCT__entry(
__field( int, bus_num )
),
TP_fast_assign(
__entry->bus_num = controller->bus_num;
),
TP_printk("spi%d", (int)__entry->bus_num)
);
DEFINE_EVENT(spi_controller, spi_controller_idle,
TP_PROTO(struct spi_controller *controller),
TP_ARGS(controller)
);
DEFINE_EVENT(spi_controller, spi_controller_busy,
TP_PROTO(struct spi_controller *controller),
TP_ARGS(controller)
);
TRACE_EVENT(spi_setup,
TP_PROTO(struct spi_device *spi, int status),
TP_ARGS(spi, status),
TP_STRUCT__entry(
__field(int, bus_num)
__field(int, chip_select)
__field(unsigned long, mode)
__field(unsigned int, bits_per_word)
__field(unsigned int, max_speed_hz)
__field(int, status)
),
TP_fast_assign(
__entry->bus_num = spi->controller->bus_num;
__entry->chip_select = spi->chip_select;
__entry->mode = spi->mode;
__entry->bits_per_word = spi->bits_per_word;
__entry->max_speed_hz = spi->max_speed_hz;
__entry->status = status;
),
TP_printk("spi%d.%d setup mode %lu, %s%s%s%s%u bits/w, %u Hz max --> %d",
__entry->bus_num, __entry->chip_select,
(__entry->mode & SPI_MODE_X_MASK),
(__entry->mode & SPI_CS_HIGH) ? "cs_high, " : "",
(__entry->mode & SPI_LSB_FIRST) ? "lsb, " : "",
(__entry->mode & SPI_3WIRE) ? "3wire, " : "",
(__entry->mode & SPI_LOOP) ? "loopback, " : "",
__entry->bits_per_word, __entry->max_speed_hz,
__entry->status)
);
TRACE_EVENT(spi_set_cs,
TP_PROTO(struct spi_device *spi, bool enable),
TP_ARGS(spi, enable),
TP_STRUCT__entry(
__field(int, bus_num)
__field(int, chip_select)
__field(unsigned long, mode)
__field(bool, enable)
),
TP_fast_assign(
__entry->bus_num = spi->controller->bus_num;
__entry->chip_select = spi->chip_select;
__entry->mode = spi->mode;
__entry->enable = enable;
),
TP_printk("spi%d.%d %s%s",
__entry->bus_num, __entry->chip_select,
__entry->enable ? "activate" : "deactivate",
(__entry->mode & SPI_CS_HIGH) ? ", cs_high" : "")
);
DECLARE_EVENT_CLASS(spi_message,
TP_PROTO(struct spi_message *msg),
TP_ARGS(msg),
TP_STRUCT__entry(
__field( int, bus_num )
__field( int, chip_select )
__field( struct spi_message *, msg )
),
TP_fast_assign(
__entry->bus_num = msg->spi->controller->bus_num;
__entry->chip_select = msg->spi->chip_select;
__entry->msg = msg;
),
TP_printk("spi%d.%d %p", (int)__entry->bus_num,
(int)__entry->chip_select,
(struct spi_message *)__entry->msg)
);
DEFINE_EVENT(spi_message, spi_message_submit,
TP_PROTO(struct spi_message *msg),
TP_ARGS(msg)
);
DEFINE_EVENT(spi_message, spi_message_start,
TP_PROTO(struct spi_message *msg),
TP_ARGS(msg)
);
TRACE_EVENT(spi_message_done,
TP_PROTO(struct spi_message *msg),
TP_ARGS(msg),
TP_STRUCT__entry(
__field( int, bus_num )
__field( int, chip_select )
__field( struct spi_message *, msg )
__field( unsigned, frame )
__field( unsigned, actual )
),
TP_fast_assign(
__entry->bus_num = msg->spi->controller->bus_num;
__entry->chip_select = msg->spi->chip_select;
__entry->msg = msg;
__entry->frame = msg->frame_length;
__entry->actual = msg->actual_length;
),
TP_printk("spi%d.%d %p len=%u/%u", (int)__entry->bus_num,
(int)__entry->chip_select,
(struct spi_message *)__entry->msg,
(unsigned)__entry->actual, (unsigned)__entry->frame)
);
/*
* consider a buffer valid if non-NULL and if it doesn't match the dummy buffer
* that only exist to work with controllers that have SPI_CONTROLLER_MUST_TX or
* SPI_CONTROLLER_MUST_RX.
*/
#define spi_valid_txbuf(msg, xfer) \
(xfer->tx_buf && xfer->tx_buf != msg->spi->controller->dummy_tx)
#define spi_valid_rxbuf(msg, xfer) \
(xfer->rx_buf && xfer->rx_buf != msg->spi->controller->dummy_rx)
DECLARE_EVENT_CLASS(spi_transfer,
TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
TP_ARGS(msg, xfer),
TP_STRUCT__entry(
__field( int, bus_num )
__field( int, chip_select )
__field( struct spi_transfer *, xfer )
__field( int, len )
__dynamic_array(u8, rx_buf,
spi_valid_rxbuf(msg, xfer) ?
(xfer->len < 64 ? xfer->len : 64) : 0)
__dynamic_array(u8, tx_buf,
spi_valid_txbuf(msg, xfer) ?
(xfer->len < 64 ? xfer->len : 64) : 0)
),
TP_fast_assign(
__entry->bus_num = msg->spi->controller->bus_num;
__entry->chip_select = msg->spi->chip_select;
__entry->xfer = xfer;
__entry->len = xfer->len;
if (spi_valid_txbuf(msg, xfer))
memcpy(__get_dynamic_array(tx_buf),
xfer->tx_buf, __get_dynamic_array_len(tx_buf));
if (spi_valid_rxbuf(msg, xfer))
memcpy(__get_dynamic_array(rx_buf),
xfer->rx_buf, __get_dynamic_array_len(rx_buf));
),
TP_printk("spi%d.%d %p len=%d tx=[%*phD] rx=[%*phD]",
__entry->bus_num, __entry->chip_select,
__entry->xfer, __entry->len,
__get_dynamic_array_len(tx_buf), __get_dynamic_array(tx_buf),
__get_dynamic_array_len(rx_buf), __get_dynamic_array(rx_buf))
);
DEFINE_EVENT(spi_transfer, spi_transfer_start,
TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
TP_ARGS(msg, xfer)
);
DEFINE_EVENT(spi_transfer, spi_transfer_stop,
TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
TP_ARGS(msg, xfer)
);
#endif /* _TRACE_POWER_H */
/* This part must be outside protection */
#include <trace/define_trace.h>