events/spi.h

   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
  11 DECLARE_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
  29 DEFINE_EVENT(spi_controller, spi_controller_idle,
  30
  31         TP_PROTO(struct spi_controller *controller),
  32
  33         TP_ARGS(controller)
  34
  35 );
  36
  37 DEFINE_EVENT(spi_controller, spi_controller_busy,
  38
  39         TP_PROTO(struct spi_controller *controller),
  40
  41         TP_ARGS(controller)
  42
  43 );
  44
  45 TRACE_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
  78 TRACE_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
 102 DECLARE_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
 125 DEFINE_EVENT(spi_message, spi_message_submit,
 126
 127         TP_PROTO(struct spi_message *msg),
 128
 129         TP_ARGS(msg)
 130
 131 );
 132
 133 DEFINE_EVENT(spi_message, spi_message_start,
 134
 135         TP_PROTO(struct spi_message *msg),
 136
 137         TP_ARGS(msg)
 138
 139 );
 140
 141 TRACE_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
 179 DECLARE_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
 220 DEFINE_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
 228 DEFINE_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>