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Linux Kernel
3.7.1
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All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
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Linux Kernel
3.7.1
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#include <linux/err.h>#include <linux/module.h>#include <linux/moduleparam.h>#include <linux/stringify.h>#include <linux/namei.h>#include <linux/stat.h>#include <linux/miscdevice.h>#include <linux/mtd/partitions.h>#include <linux/log2.h>#include <linux/kthread.h>#include <linux/kernel.h>#include <linux/slab.h>#include "ubi.h"Go to the source code of this file.
Data Structures | |
| struct | mtd_dev_param |
Macros | |
| #define | MTD_PARAM_LEN_MAX 64 |
| #define | MTD_PARAM_MAX_COUNT 3 |
| #define | MAX_MTD_UBI_BEB_LIMIT 768 |
| #define | ubi_is_module() 0 |
: MTD character device node path, MTD device name, or MTD device number | |
struct mtd_dev_param - MTD device parameter description data structure. string : VID header offset : maximum expected number of bad PEBs per 1024 PEBs | |
| struct class * | ubi_class |
| struct kmem_cache * | ubi_wl_entry_slab |
| DEFINE_MUTEX (ubi_devices_mutex) | |
| int | ubi_volume_notify (struct ubi_device *ubi, struct ubi_volume *vol, int ntype) |
| int | ubi_notify_all (struct ubi_device *ubi, int ntype, struct notifier_block *nb) |
| int | ubi_enumerate_volumes (struct notifier_block *nb) |
| struct ubi_device * | ubi_get_device (int ubi_num) |
| void | ubi_put_device (struct ubi_device *ubi) |
| struct ubi_device * | ubi_get_by_major (int major) |
| int | ubi_major2num (int major) |
| void | ubi_free_internal_volumes (struct ubi_device *ubi) |
| int | ubi_attach_mtd_dev (struct mtd_info *mtd, int ubi_num, int vid_hdr_offset, int max_beb_per1024) |
| int | ubi_detach_mtd_dev (int ubi_num, int anyway) |
| late_initcall (ubi_init) | |
| module_exit (ubi_exit) | |
| module_param_call (mtd, ubi_mtd_param_parse, NULL, NULL, 000) | |
| MODULE_PARM_DESC (mtd,"MTD devices to attach. Parameter format: mtd=<name|num|path>[,<vid_hdr_offs>[,max_beb_per1024]].\n""Multiple \"mtd\" parameters may be specified.\n""MTD devices may be specified by their number, name, or path to the MTD character device node.\n""Optional \"vid_hdr_offs\" parameter specifies UBI VID header position to be used by UBI. (default value if 0)\n""Optional \"max_beb_per1024\" parameter specifies the maximum expected bad eraseblock per 1024 eraseblocks. (default value ("__stringify(CONFIG_MTD_UBI_BEB_LIMIT)") if 0)\n""\n""Example 1: mtd=/dev/mtd0 - attach MTD device /dev/mtd0.\n""Example 2: mtd=content,1984 mtd=4 - attach MTD device with name \"content\" using VID header offset 1984, and MTD device number 4 with default VID header offset.\n""Example 3: mtd=/dev/mtd1,0,25 - attach MTD device /dev/mtd1 using default VID header offset and reserve 25*nand_size_in_blocks/1024 erase blocks for bad block handling.\n""\t(e.g. if the NAND *chipset* has 4096 PEB, 100 will be reserved for this UBI device).") | |
| MODULE_VERSION (__stringify(UBI_VERSION)) | |
| MODULE_DESCRIPTION ("UBI - Unsorted Block Images") | |
| MODULE_AUTHOR ("Artem Bityutskiy") | |
| MODULE_LICENSE ("GPL") | |
| DEFINE_MUTEX | ( | ubi_devices_mutex | ) |
| late_initcall | ( | ubi_init | ) |
| MODULE_AUTHOR | ( | "Artem Bityutskiy" | ) |
| MODULE_DESCRIPTION | ( | "UBI - Unsorted Block Images" | ) |
| module_exit | ( | ubi_exit | ) |
| MODULE_LICENSE | ( | "GPL" | ) |
| MODULE_PARM_DESC | ( | mtd | , |
| "MTD devices to attach. Parameter format: | mtd = <name|num|path>[, |
||
| < vid_hdr_offs >].\n""Multiple\"mtd\" parameters may be specified.\n""MTD devices may be specified by their | number[, max_beb_per1024], | ||
| name | , | ||
| or path to the MTD character device node.\n""Optional\"vid_hdr_offs\" parameter specifies UBI VID header position to be used by UBI. (default value if 0)\n""Optional \"max_beb_per1024\" parameter specifies the maximum expected bad eraseblock per 1024 eraseblocks. (default value ("__stringify(CONFIG_MTD_UBI_BEB_LIMIT)") if 0)\n""\n""Example 1: | mtd = /dev/mtd0 - attach MTD device /dev/mtd0.\n""Example 2: mtd=content, |
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| 1984 | mtd = 4 - attach MTD device with name \"content\" using VID header offset 1984, and MTD device number 4 with default VID header offset.\n""Example 3: mtd=/dev/mtd1,0,25 - attach MTD device /dev/mtd1 using default VID header offset and reserve 25*nand_size_in_blocks/1024 erase blocks for bad block handling.\n""\t(e.g. if the NAND *chipset* has 4096 PEB, 100 will be reserved for this UBI device)." |
||
| ) |
| MODULE_VERSION | ( | __stringify(UBI_VERSION) | ) |
| int ubi_attach_mtd_dev | ( | struct mtd_info * | mtd, |
| int | ubi_num, | ||
| int | vid_hdr_offset, | ||
| int | max_beb_per1024 | ||
| ) |
ubi_attach_mtd_dev - attach an MTD device. : MTD device description object : number to assign to the new UBI device : VID header offset : maximum expected number of bad PEB per 1024 PEBs
This function attaches MTD device to UBI and assign number to the newly created UBI device, unless is UBI_DEV_NUM_AUTO, in which case this function finds a vacant device number and assigns it automatically. Returns the new UBI device number in case of success and a negative error code in case of failure.
Note, the invocations of this function has to be serialized by the .
ubi_detach_mtd_dev - detach an MTD device. : UBI device number to detach from : detach MTD even if device reference count is not zero
This function destroys an UBI device number and detaches the underlying MTD device. Returns zero in case of success and %-EBUSY if the UBI device is busy and cannot be destroyed, and %-EINVAL if it does not exist.
Note, the invocations of this function has to be serialized by the .
| int ubi_enumerate_volumes | ( | struct notifier_block * | nb | ) |
ubi_enumerate_volumes - send "add" notification for all existing volumes. : the notifier to call
This function walks all UBI devices and volumes and sends the UBI_VOLUME_ADDED notification for each volume. If is NULL, then all registered notifiers are called, otherwise only the notifier is called. Returns the number of sent notifications.
| void ubi_free_internal_volumes | ( | struct ubi_device * | ubi | ) |
|
read |
ubi_get_by_major - get UBI device by character device major number. : major number
This function is similar to 'ubi_get_device()', but it searches the device by its major number.
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read |
ubi_get_device - get UBI device. : UBI device number
This function returns UBI device description object for UBI device number , or NULL if the device does not exist. This function increases the device reference count to prevent removal of the device. In other words, the device cannot be removed if its reference count is not zero.
ubi_major2num - get UBI device number by character device major number. : major number
This function searches UBI device number object by its major number. If UBI device was not found, this function returns -ENODEV, otherwise the UBI device number is returned.
| int ubi_notify_all | ( | struct ubi_device * | ubi, |
| int | ntype, | ||
| struct notifier_block * | nb | ||
| ) |
ubi_notify_all - send a notification to all volumes. : UBI device description object : notification type to send (UBI_VOLUME_ADDED, etc) : the notifier to call
This function walks all volumes of UBI device and sends the notification for each volume. If is NULL, then all registered notifiers are called, otherwise only the notifier is called. Returns the number of sent notifications.
| void ubi_put_device | ( | struct ubi_device * | ubi | ) |
| int ubi_volume_notify | ( | struct ubi_device * | ubi, |
| struct ubi_volume * | vol, | ||
| int | ntype | ||
| ) |
ubi_volume_notify - send a volume change notification. : UBI device description object : volume description object of the changed volume : notification type to send (UBI_VOLUME_ADDED, etc)
This is a helper function which notifies all subscribers about a volume change event (creation, removal, re-sizing, re-naming, updating). Returns zero in case of success and a negative error code in case of failure.
| struct kmem_cache* ubi_wl_entry_slab |
1.8.2