Lines Matching full:transfer
50 * transfer bytes histogramm
116 * The spi_transfer.speed_hz can override this for each transfer.
122 * each word in a transfer (by specifying SPI_LSB_FIRST).
128 * The spi_transfer.bits_per_word can override this for each transfer.
146 * words of a transfer
335 * supported. If set, the SPI core will reject any transfer with an
338 * @min_speed_hz: Lowest supported transfer speed
339 * @max_speed_hz: Highest supported transfer speed
342 * @max_transfer_size: function that returns the max transfer size for
358 * @transfer: adds a message to the controller's transfer queue.
380 * @max_dma_len: Maximum length of a DMA transfer for the device.
382 * so the subsystem requests the driver to prepare the transfer hardware
384 * @transfer_one_message: the subsystem calls the driver to transfer a single
395 * @prepare_message: set up the controller to transfer a single message,
398 * @transfer_one: transfer a single spi_transfer.
400 * - return 0 if the transfer is finished,
401 * - return 1 if the transfer is still in progress. When
402 * the driver is finished with this transfer it must
404 * can issue the next transfer. Note: transfer_one and
414 * @slave_abort: abort the ongoing transfer request on an SPI slave controller
452 * @fallback: fallback to pio if dma transfer return failure with
500 /* limits on transfer speed */
521 * on some hardware transfer / message size may be constrained
522 * the limit may depend on device transfer settings
558 * + The transfer() method may not sleep; its main role is
575 int (*transfer)(struct spi_device *spi, member
583 * exists and returns true then the transfer will be mapped
594 * controller transfer queueing mechanism. If these are used, the
595 * transfer() function above must NOT be specified by the driver.
633 struct spi_transfer *transfer);
713 /* Helper calls for driver to timestamp transfer */
806 * The spi_messages themselves consist of a series of read+write transfer
829 * transfer. If 0 the default (from @spi_device) is used.
831 * for this transfer. If 0 the default (from @spi_device) is used.
832 * @cs_change: affects chipselect after this transfer completes
835 * @delay: delay to be introduced after this transfer before
837 * the next transfer or completing this @spi_message.
838 * @delay_usecs: microseconds to delay after this transfer before
840 * the next transfer or completing this @spi_message.
844 * transfer this transfer. Set to 0 if the spi bus driver does
851 * snapshot for this transfer begins. Upon completing the SPI transfer,
853 * on the available snapshotting resolution (DMA transfer,
859 * @ptp_sts_word_post to the length of the transfer. This is done
861 * that a transfer-level snapshot taken from within the driver may still
865 * hardware has some sort of assist for retrieving exact transfer timing,
872 * @timestamped: true if the transfer has been timestamped
893 * When the word size of the SPI transfer is not a power-of-two multiple
899 * it stays selected until after the last transfer in a message. Drivers
902 * (i) If the transfer isn't the last one in the message, this flag is
908 * (ii) When the transfer is the last one in the message, the chip may
909 * stay selected until the next transfer. On multi-device SPI busses
918 * When SPI can transfer in 1x,2x or 4x. It can get this transfer information
920 * two should both be set. User can set transfer mode with SPI_NBITS_SINGLE(1x)
921 * SPI_NBITS_DUAL(2x) and SPI_NBITS_QUAD(4x) to support these three transfer.
947 #define SPI_NBITS_SINGLE 0x01 /* 1bit transfer */
948 #define SPI_NBITS_DUAL 0x02 /* 2bits transfer */
949 #define SPI_NBITS_QUAD 0x04 /* 4bits transfer */
974 * @transfers: list of transfer segments in this transaction
977 * addresses for each transfer buffer
992 * a single programmed DMA transfer. On all systems, these messages are
1010 * last transfer ... allowing things like "read 16 bit length L"
1154 /* transfer size limit must not be greater than messsage size limit */ in spi_max_transfer_size()
1180 /* SPI transfer replacement methods which make use of spi_res */
1195 * @replaced_after: the transfer after which the @replaced_transfers
1225 /* SPI transfer transformation methods */
1234 /* All these synchronous SPI transfer routines are utilities layered
1235 * over the core async transfer primitive. Here, "synchronous" means
1236 * they will sleep uninterruptibly until the async transfer completes.
1245 * spi_sync_transfer - synchronous SPI data transfer
1251 * Does a synchronous SPI data transfer of the given spi_transfer array.
1431 * as the default transfer wordsize) is not included here.