/* * Enclosure Services * * Copyright (C) 2008 James Bottomley <James.Bottomley@HansenPartnership.com> * **----------------------------------------------------------------------------- ** ** This program is free software; you can redistribute it and/or ** modify it under the terms of the GNU General Public License ** version 2 as published by the Free Software Foundation. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. ** **----------------------------------------------------------------------------- */ #ifndef _LINUX_ENCLOSURE_H_ #define _LINUX_ENCLOSURE_H_ #include <linux/device.h> #include <linux/list.h> /* A few generic types ... taken from ses-2 */ enum enclosure_component_type { ENCLOSURE_COMPONENT_DEVICE = 0x01, ENCLOSURE_COMPONENT_ARRAY_DEVICE = 0x17, }; /* ses-2 common element status */ enum enclosure_status { ENCLOSURE_STATUS_UNSUPPORTED = 0, ENCLOSURE_STATUS_OK, ENCLOSURE_STATUS_CRITICAL, ENCLOSURE_STATUS_NON_CRITICAL, ENCLOSURE_STATUS_UNRECOVERABLE, ENCLOSURE_STATUS_NOT_INSTALLED, ENCLOSURE_STATUS_UNKNOWN, ENCLOSURE_STATUS_UNAVAILABLE, }; /* SFF-8485 activity light settings */ enum enclosure_component_setting { ENCLOSURE_SETTING_DISABLED = 0, ENCLOSURE_SETTING_ENABLED = 1, ENCLOSURE_SETTING_BLINK_A_ON_OFF = 2, ENCLOSURE_SETTING_BLINK_A_OFF_ON = 3, ENCLOSURE_SETTING_BLINK_B_ON_OFF = 6, ENCLOSURE_SETTING_BLINK_B_OFF_ON = 7, }; struct enclosure_device; struct enclosure_component; struct enclosure_component_callbacks { void (*get_status)(struct enclosure_device *, struct enclosure_component *); int (*set_status)(struct enclosure_device *, struct enclosure_component *, enum enclosure_status); void (*get_fault)(struct enclosure_device *, struct enclosure_component *); int (*set_fault)(struct enclosure_device *, struct enclosure_component *, enum enclosure_component_setting); void (*get_active)(struct enclosure_device *, struct enclosure_component *); int (*set_active)(struct enclosure_device *, struct enclosure_component *, enum enclosure_component_setting); void (*get_locate)(struct enclosure_device *, struct enclosure_component *); int (*set_locate)(struct enclosure_device *, struct enclosure_component *, enum enclosure_component_setting); }; struct enclosure_component { void *scratch; struct device cdev; struct device *dev; enum enclosure_component_type type; int number; int fault; int active; int locate; enum enclosure_status status; }; struct enclosure_device { void *scratch; struct list_head node; struct device edev; struct enclosure_component_callbacks *cb; int components; struct enclosure_component component[0]; }; static inline struct enclosure_device * to_enclosure_device(struct device *dev) { return container_of(dev, struct enclosure_device, edev); } static inline struct enclosure_component * to_enclosure_component(struct device *dev) { return container_of(dev, struct enclosure_component, cdev); } struct enclosure_device * enclosure_register(struct device *, const char *, int, struct enclosure_component_callbacks *); void enclosure_unregister(struct enclosure_device *); struct enclosure_component * enclosure_component_register(struct enclosure_device *, unsigned int, enum enclosure_component_type, const char *); int enclosure_add_device(struct enclosure_device *enclosure, int component, struct device *dev); int enclosure_remove_device(struct enclosure_device *enclosure, int component); struct enclosure_device *enclosure_find(struct device *dev); int enclosure_for_each_device(int (*fn)(struct enclosure_device *, void *), void *data); #endif /* _LINUX_ENCLOSURE_H_ */