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 DECLARE_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 68 DEFINE_EVENT(spi_message, spi_message_submit, 69 70 TP_PROTO(struct spi_message *msg), 71 72 TP_ARGS(msg) 73 74 ); 75 76 DEFINE_EVENT(spi_message, spi_message_start, 77 78 TP_PROTO(struct spi_message *msg), 79 80 TP_ARGS(msg) 81 82 ); 83 84 TRACE_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) 121 122 DECLARE_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 ); 162 163 DEFINE_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 ); 170 171 DEFINE_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> 183
