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Diffstat (limited to '')
| -rw-r--r-- | include/linux/enclosure.h | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/include/linux/enclosure.h b/include/linux/enclosure.h new file mode 100644 index 000000000..a4cf57cd0 --- /dev/null +++ b/include/linux/enclosure.h @@ -0,0 +1,146 @@ +/* + * 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_CONTROLLER_ELECTRONICS = 0x07, + ENCLOSURE_COMPONENT_SCSI_TARGET_PORT = 0x14, + ENCLOSURE_COMPONENT_SCSI_INITIATOR_PORT = 0x15, + ENCLOSURE_COMPONENT_ARRAY_DEVICE = 0x17, + ENCLOSURE_COMPONENT_SAS_EXPANDER = 0x18, +}; + +/* 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, + /* last element for counting purposes */ + ENCLOSURE_STATUS_MAX +}; + +/* 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); + void (*get_power_status)(struct enclosure_device *, + struct enclosure_component *); + int (*set_power_status)(struct enclosure_device *, + struct enclosure_component *, + int); + int (*show_id)(struct enclosure_device *, char *buf); +}; + + +struct enclosure_component { + void *scratch; + struct device cdev; + struct device *dev; + enum enclosure_component_type type; + int number; + int fault; + int active; + int locate; + int slot; + enum enclosure_status status; + int power_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_alloc(struct enclosure_device *, unsigned int, + enum enclosure_component_type, const char *); +int enclosure_component_register(struct enclosure_component *); +int enclosure_add_device(struct enclosure_device *enclosure, int component, + struct device *dev); +int enclosure_remove_device(struct enclosure_device *, struct device *); +struct enclosure_device *enclosure_find(struct device *dev, + struct enclosure_device *start); +int enclosure_for_each_device(int (*fn)(struct enclosure_device *, void *), + void *data); + +#endif /* _LINUX_ENCLOSURE_H_ */ |