u-boot/include/spi.h

3  * Common SPI Interface: Controller-specific definitions
14 /* SPI mode flags */
46  * struct dm_spi_platdata - platform data for all SPI slaves
48  * This describes a SPI slave, a child device of the SPI bus. To obtain this
57  * @mode:	SPI mode to use for this device (see SPI mode flags)
68  * struct spi_slave - Representation of a SPI slave
70  * For driver model this is the per-child data used by the SPI bus. It can
71  * be accessed using dev_get_parent_priv() on the slave device. The SPI uclass
80  * @dev:		SPI slave device
85  *			driver model this is the sequence number of the SPI
88  * @mode:		SPI mode to use for this slave (see SPI mode flags)
89  * @wordlen:		Size of SPI word in number of bits
94  * @memory_map:		Address of read-only SPI flash access.
95  * @flags:		Indication of SPI flags.
121  * spi_do_alloc_slave - Allocate a new SPI slave (internal)
123  * Allocate and zero all fields in the spi slave, and set the bus/chip
135  * spi_alloc_slave - Allocate a new SPI slave
137  * Allocate and zero all fields in the spi slave, and set the bus/chip
150  * spi_alloc_slave_base - Allocate a new SPI slave with no private data
152  * Allocate and zero all fields in the spi slave, and set the bus/chip
162  * Set up communications parameters for a SPI slave.
174  * Returns: A spi_slave reference that can be used in subsequent SPI
181  * Free any memory associated with a SPI slave.
183  * @slave:	The SPI slave
190  * This must be called before doing any transfers with a SPI slave. It
191  * will enable and initialize any SPI hardware as necessary, and make
196  * @slave:	The SPI slave
204  * Release the SPI bus
207  * all transfers have finished. It may disable any SPI hardware as
210  * @slave:	The SPI slave
215  * Set the word length for SPI transactions
217  * Set the word length (number of bits per word) for SPI transactions.
219  * @slave:	The SPI slave
227  * SPI transfer
229  * This writes "bitlen" bits out the SPI MOSI port and simultaneously clocks
230  * "bitlen" bits in the SPI MISO port.  That's just the way SPI works.
239  * @slave:	The SPI slave which will be sending/receiving the data.
255  * Determine if a SPI chipselect is valid.
256  * This function is provided by the board if the low-level SPI driver
266  * Activate a SPI chipselect.
275  * Deactivate a SPI chipselect.
286  * @slave:	The SPI slave
294  * @slave:	The SPI slave we're communicating with
326  * struct struct dm_spi_ops - Driver model SPI operations
328  * The uclass interface is implemented by all SPI devices which use
338 	 * This must be called before doing any transfers with a SPI slave. It
339 	 * will enable and initialize any SPI hardware as necessary, and make
344 	 * @dev:	The SPI slave
352 	 * Release the SPI bus
355 	 * all transfers have finished. It may disable any SPI hardware as
358 	 * @dev:	The SPI slave
363 	 * Set the word length for SPI transactions
365 	 * Set the word length (number of bits per word) for SPI transactions.
367 	 * @bus:	The SPI slave
375 	 * SPI transfer
377 	 * This writes "bitlen" bits out the SPI MOSI port and simultaneously
378 	 * clocks "bitlen" bits in the SPI MISO port.  That's just the way SPI
401 	 * Optimized handlers for SPI memory-like operations.
403 	 * Optimized/dedicated operations for interactions with SPI memory. This
412 	 * @bus:	The SPI bus
419 	 * Set the SPI mode/flags
424 	 * @bus:	The SPI bus
425 	 * @mode:	Requested SPI mode (SPI_... flags)
433 	 * This is only called when the SPI uclass does not know about a
437 	 * @bus:	The SPI bus
452 	 * SPI transfer
454 	 * This writes "bitlen" bits out the SPI MOSI port and simultaneously
455 	 * clocks "bitlen" bits in the SPI MISO port.  That's just the way SPI
465 	 * @slave:	The SPI slave which will be sending/receiving the data.
486  * @busnum:	SPI bus number
506  * @busnum:	SPI bus number
508  * @speed:	SPI speed to use for this slave
509  * @mode:	SPI mode to use for this slave
530  * @bus:	SPI bus to search
538  * spi_slave_ofdata_to_platdata() - decode standard SPI platform data
555  * @bus:	The SPI bus
566  * sandbox_spi_get_emul() - get an emulator for a SPI slave
568  * This provides a way to attach an emulated SPI device to a particular SPI
574  * @bus:	SPI bus requesting the emulator
575  * @slave:	SPI slave device requesting the emulator
586  * This must be called before doing any transfers with a SPI slave. It
587  * will enable and initialize any SPI hardware as necessary, and make
592  * @dev:	The SPI slave device
600  * Release the SPI bus
603  * all transfers have finished. It may disable any SPI hardware as
606  * @slave:	The SPI slave device
611  * SPI transfer
613  * This writes "bitlen" bits out the SPI MOSI port and simultaneously clocks
614  * "bitlen" bits in the SPI MISO port.  That's just the way SPI works.
623  * @dev:	The SPI slave device which will be sending/receiving the data.
635 /* Access the operations for a SPI device */