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8caab75fd2
Now struct spi_master is used for both SPI master and slave controllers,
it makes sense to rename it to struct spi_controller, and replace
"master" by "controller" where appropriate.
For now this conversion is done for SPI core infrastructure only.
Wrappers are provided for backwards compatibility, until all SPI drivers
have been converted.
Noteworthy details:
- SPI_MASTER_GPIO_SS is retained, as it only makes sense for SPI
master controllers,
- spi_busnum_to_master() is retained, as it looks up masters only,
- A new field spi_device.controller is added, but spi_device.master is
retained for compatibility (both are always initialized by
spi_alloc_device()),
- spi_flash_read() is used by SPI masters only.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
156 lines
3.3 KiB
C
156 lines
3.3 KiB
C
#undef TRACE_SYSTEM
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#define TRACE_SYSTEM spi
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#if !defined(_TRACE_SPI_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_SPI_H
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#include <linux/ktime.h>
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#include <linux/tracepoint.h>
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DECLARE_EVENT_CLASS(spi_controller,
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TP_PROTO(struct spi_controller *controller),
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TP_ARGS(controller),
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TP_STRUCT__entry(
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__field( int, bus_num )
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),
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TP_fast_assign(
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__entry->bus_num = controller->bus_num;
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),
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TP_printk("spi%d", (int)__entry->bus_num)
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);
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DEFINE_EVENT(spi_controller, spi_controller_idle,
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TP_PROTO(struct spi_controller *controller),
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TP_ARGS(controller)
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);
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DEFINE_EVENT(spi_controller, spi_controller_busy,
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TP_PROTO(struct spi_controller *controller),
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TP_ARGS(controller)
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);
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DECLARE_EVENT_CLASS(spi_message,
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TP_PROTO(struct spi_message *msg),
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TP_ARGS(msg),
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TP_STRUCT__entry(
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__field( int, bus_num )
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__field( int, chip_select )
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__field( struct spi_message *, msg )
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),
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TP_fast_assign(
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__entry->bus_num = msg->spi->controller->bus_num;
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__entry->chip_select = msg->spi->chip_select;
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__entry->msg = msg;
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),
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TP_printk("spi%d.%d %p", (int)__entry->bus_num,
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(int)__entry->chip_select,
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(struct spi_message *)__entry->msg)
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);
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DEFINE_EVENT(spi_message, spi_message_submit,
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TP_PROTO(struct spi_message *msg),
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TP_ARGS(msg)
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);
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DEFINE_EVENT(spi_message, spi_message_start,
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TP_PROTO(struct spi_message *msg),
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TP_ARGS(msg)
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);
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TRACE_EVENT(spi_message_done,
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TP_PROTO(struct spi_message *msg),
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TP_ARGS(msg),
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TP_STRUCT__entry(
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__field( int, bus_num )
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__field( int, chip_select )
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__field( struct spi_message *, msg )
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__field( unsigned, frame )
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__field( unsigned, actual )
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),
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TP_fast_assign(
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__entry->bus_num = msg->spi->controller->bus_num;
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__entry->chip_select = msg->spi->chip_select;
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__entry->msg = msg;
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__entry->frame = msg->frame_length;
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__entry->actual = msg->actual_length;
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),
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TP_printk("spi%d.%d %p len=%u/%u", (int)__entry->bus_num,
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(int)__entry->chip_select,
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(struct spi_message *)__entry->msg,
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(unsigned)__entry->actual, (unsigned)__entry->frame)
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);
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DECLARE_EVENT_CLASS(spi_transfer,
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TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
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TP_ARGS(msg, xfer),
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TP_STRUCT__entry(
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__field( int, bus_num )
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__field( int, chip_select )
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__field( struct spi_transfer *, xfer )
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__field( int, len )
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),
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TP_fast_assign(
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__entry->bus_num = msg->spi->controller->bus_num;
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__entry->chip_select = msg->spi->chip_select;
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__entry->xfer = xfer;
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__entry->len = xfer->len;
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),
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TP_printk("spi%d.%d %p len=%d", (int)__entry->bus_num,
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(int)__entry->chip_select,
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(struct spi_message *)__entry->xfer,
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(int)__entry->len)
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);
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DEFINE_EVENT(spi_transfer, spi_transfer_start,
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TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
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TP_ARGS(msg, xfer)
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);
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DEFINE_EVENT(spi_transfer, spi_transfer_stop,
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TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
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TP_ARGS(msg, xfer)
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);
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#endif /* _TRACE_POWER_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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