u-boot/include/blk.h

63 	 * device's uclass instead.
66 	int		devnum;		/* device number */
71 	unsigned char	type;		/* device type */
72 	unsigned char	removable;	/* removable device */
74 	/* device can use 48bit addr (ATA/ATAPI v7) */
80 	char		vendor[BLK_VEN_SIZE + 1]; /* device vendor string */
81 	char		product[BLK_PRD_SIZE + 1]; /* device product number */
92 	 * device. Once these functions are removed we can drop this field.
119  * @param iftype - IF_TYPE_x for type of device
120  * @param dev - device index of particular type
133  * blkcache_fill() - make data read from a block device available
136  * @param iftype - IF_TYPE_x for type of device
137  * @param dev - device index of particular type
150  * because of a write or device (re)initialization.
152  * @param iftype - IF_TYPE_x for type of device
153  * @param dev - device index of particular type
206 	 * read() - read from a block device
208 	 * @dev:	Device to read from
219 	 * write() - write to a block device
221 	 * @dev:	Device to write to
232 	 * erase() - erase a section of a block device
234 	 * @dev:	Device to (partially) erase
249 	 * explicitly selected. Once selected only the region of the device
255 	 * @desc:	Block device to update
257 	 *		device, 1 is the first partition, 2 is the second, etc.
279  * blk_find_device() - Find a block device
281  * This function does not activate the device. The device will be returned
285  * @devnum:	Device number (specific to each interface type)
286  * @devp:	the device, if found
287  * @return 0 if found, -ENODEV if no device found, or other -ve error value
292  * blk_get_device() - Find and probe a block device ready for use
295  * @devnum:	Device number (specific to each interface type)
296  * @devp:	the device, if found
297  * @return 0 if found, -ENODEV if no device found, or other -ve error value
302  * blk_first_device() - Find the first device for a given interface
304  * The device is probed ready for use
306  * @devnum:	Device number (specific to each interface type)
307  * @devp:	the device, if found
308  * @return 0 if found, -ENODEV if no device, or other -ve error value
313  * blk_next_device() - Find the next device for a given interface
318  * The device is probed ready for use
320  * @devp:	On entry, the previous device returned. On exit, the next
321  *		device, if found
322  * @return 0 if found, -ENODEV if no device, or other -ve error value
327  * blk_create_device() - Create a new block device
329  * @parent:	Parent of the new device
330  * @drv_name:	Driver name to use for the block device
331  * @name:	Name for the device
333  * @devnum:	Device number, specific to the interface type, or -1 to
335  * @blksz:	Block size of the device in bytes (typically 512)
336  * @lba:	Total number of blocks of the device
337  * @devp:	the new device (which has not been probed)
344  * blk_create_devicef() - Create a new named block device
346  * @parent:	Parent of the new device
347  * @drv_name:	Driver name to use for the block device
348  * @name:	Name for the device (parent name is prepended)
350  * @devnum:	Device number, specific to the interface type, or -1 to
352  * @blksz:	Block size of the device in bytes (typically 512)
353  * @lba:	Total number of blocks of the device
354  * @devp:	the new device (which has not been probed)
361  * blk_unbind_all() - Unbind all device of the given interface type
371  * blk_find_max_devnum() - find the maximum device number for an interface type
373  * Finds the last allocated device number for an interface type @if_type. The
374  * next number is safe to use for a newly allocated device.
377  * @return maximum device number found, or -ENODEV if none, or other -ve on
383  * blk_next_free_devnum() - get the next device number for an interface type
385  * Finds the next number that is safe to use for a newly allocated device for
389  * @return next device number safe to use, or -ve on error
396  * Select a hardware partition if the device supports it (typically MMC does)
398  * @dev:	Device to update
405  * blk_get_from_parent() - obtain a block device by looking up its parent
412  * blk_get_by_device() - Get the block device descriptor for the given device
413  * @dev:	Instance of a storage device
415  * Return: With block device descriptor on success , NULL if there is no such
416  *	   block device.
482 	 * get_dev() - get a pointer to a block device given its number
487 	 * the device for an interface type to be obtained when @desc is NULL.
489 	 * @devnum:	Device number (0 for first device on that interface,
491 	 * @descp:	Returns pointer to the block device on success
502 	 * explicitly selected. Once selected only the region of the device
509 	 * @desc:	Block device descriptor
530  * blk_get_devnum_by_typename() - Get a block device by type and number
535  * @if_type:	Block device type
536  * @devnum:	Device number
537  * @return point to block device descriptor, or NULL if not found
542  * blk_get_devnum_by_type() - Get a block device by type name, and number
544  * This looks up the block device type based on @if_typename, then calls
547  * @if_typename:	Block device type name
548  * @devnum:		Device number
549  * @return point to block device descriptor, or NULL if not found
558  * device size may change as this effectively points the block device to a
561  * @desc:	Block device descriptor for the device to select
570  * This looks up the partition type for each block device of type @if_type,
573  * @if_type:	Block device type
581  * This lists each block device of the type @if_type, showing the capacity
584  * @if_type:	Block device type
589  * blk_show_device() - show information about a given block device
591  * This shows the block device capacity as well as type-specific information.
593  * @if_type:	Block device type
594  * @devnum:	Device number
595  * @return 0 if OK, -ENODEV for invalid device number
600  * blk_print_device_num() - show information about a given block device
603  * device type is unknown.
605  * @if_type:	Block device type
606  * @devnum:	Device number
607  * @return 0 if OK, -ENODEV for invalid device number, -ENOENT if the block
608  * device is not connected
613  * blk_print_part_devnum() - print the partition information for a device
615  * @if_type:	Block device type
616  * @devnum:	Device number
617  * @return 0 if OK, -ENOENT if the block device is not connected, -ENOSYS if
623  * blk_read_devnum() - read blocks from a device
625  * @if_type:	Block device type
626  * @devnum:	Device number
635  * blk_write_devnum() - write blocks to a device
637  * @if_type:	Block device type
638  * @devnum:	Device number
650  * device number.
652  * @if_type:	Block device type
653  * @devnum:	Device number
673  * @cur_devnump: Current device number for this interface type