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135 lines
4.0 KiB
135 lines
4.0 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Enclosure Services |
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* |
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* Copyright (C) 2008 James Bottomley <[email protected]> |
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* |
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**----------------------------------------------------------------------------- |
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** |
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** |
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**----------------------------------------------------------------------------- |
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*/ |
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#ifndef _LINUX_ENCLOSURE_H_ |
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#define _LINUX_ENCLOSURE_H_ |
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#include <linux/device.h> |
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#include <linux/list.h> |
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/* A few generic types ... taken from ses-2 */ |
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enum enclosure_component_type { |
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ENCLOSURE_COMPONENT_DEVICE = 0x01, |
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ENCLOSURE_COMPONENT_CONTROLLER_ELECTRONICS = 0x07, |
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ENCLOSURE_COMPONENT_SCSI_TARGET_PORT = 0x14, |
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ENCLOSURE_COMPONENT_SCSI_INITIATOR_PORT = 0x15, |
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ENCLOSURE_COMPONENT_ARRAY_DEVICE = 0x17, |
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ENCLOSURE_COMPONENT_SAS_EXPANDER = 0x18, |
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}; |
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/* ses-2 common element status */ |
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enum enclosure_status { |
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ENCLOSURE_STATUS_UNSUPPORTED = 0, |
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ENCLOSURE_STATUS_OK, |
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ENCLOSURE_STATUS_CRITICAL, |
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ENCLOSURE_STATUS_NON_CRITICAL, |
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ENCLOSURE_STATUS_UNRECOVERABLE, |
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ENCLOSURE_STATUS_NOT_INSTALLED, |
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ENCLOSURE_STATUS_UNKNOWN, |
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ENCLOSURE_STATUS_UNAVAILABLE, |
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/* last element for counting purposes */ |
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ENCLOSURE_STATUS_MAX |
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}; |
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/* SFF-8485 activity light settings */ |
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enum enclosure_component_setting { |
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ENCLOSURE_SETTING_DISABLED = 0, |
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ENCLOSURE_SETTING_ENABLED = 1, |
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ENCLOSURE_SETTING_BLINK_A_ON_OFF = 2, |
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ENCLOSURE_SETTING_BLINK_A_OFF_ON = 3, |
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ENCLOSURE_SETTING_BLINK_B_ON_OFF = 6, |
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ENCLOSURE_SETTING_BLINK_B_OFF_ON = 7, |
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}; |
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struct enclosure_device; |
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struct enclosure_component; |
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struct enclosure_component_callbacks { |
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void (*get_status)(struct enclosure_device *, |
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struct enclosure_component *); |
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int (*set_status)(struct enclosure_device *, |
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struct enclosure_component *, |
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enum enclosure_status); |
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void (*get_fault)(struct enclosure_device *, |
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struct enclosure_component *); |
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int (*set_fault)(struct enclosure_device *, |
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struct enclosure_component *, |
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enum enclosure_component_setting); |
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void (*get_active)(struct enclosure_device *, |
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struct enclosure_component *); |
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int (*set_active)(struct enclosure_device *, |
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struct enclosure_component *, |
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enum enclosure_component_setting); |
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void (*get_locate)(struct enclosure_device *, |
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struct enclosure_component *); |
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int (*set_locate)(struct enclosure_device *, |
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struct enclosure_component *, |
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enum enclosure_component_setting); |
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void (*get_power_status)(struct enclosure_device *, |
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struct enclosure_component *); |
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int (*set_power_status)(struct enclosure_device *, |
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struct enclosure_component *, |
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int); |
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int (*show_id)(struct enclosure_device *, char *buf); |
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}; |
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struct enclosure_component { |
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void *scratch; |
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struct device cdev; |
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struct device *dev; |
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enum enclosure_component_type type; |
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int number; |
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int fault; |
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int active; |
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int locate; |
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int slot; |
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enum enclosure_status status; |
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int power_status; |
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}; |
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struct enclosure_device { |
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void *scratch; |
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struct list_head node; |
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struct device edev; |
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struct enclosure_component_callbacks *cb; |
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int components; |
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struct enclosure_component component[]; |
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}; |
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static inline struct enclosure_device * |
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to_enclosure_device(struct device *dev) |
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{ |
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return container_of(dev, struct enclosure_device, edev); |
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} |
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static inline struct enclosure_component * |
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to_enclosure_component(struct device *dev) |
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{ |
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return container_of(dev, struct enclosure_component, cdev); |
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} |
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struct enclosure_device * |
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enclosure_register(struct device *, const char *, int, |
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struct enclosure_component_callbacks *); |
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void enclosure_unregister(struct enclosure_device *); |
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struct enclosure_component * |
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enclosure_component_alloc(struct enclosure_device *, unsigned int, |
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enum enclosure_component_type, const char *); |
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int enclosure_component_register(struct enclosure_component *); |
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int enclosure_add_device(struct enclosure_device *enclosure, int component, |
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struct device *dev); |
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int enclosure_remove_device(struct enclosure_device *, struct device *); |
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struct enclosure_device *enclosure_find(struct device *dev, |
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struct enclosure_device *start); |
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int enclosure_for_each_device(int (*fn)(struct enclosure_device *, void *), |
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void *data); |
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#endif /* _LINUX_ENCLOSURE_H_ */
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