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139 lines
4.2 KiB
139 lines
4.2 KiB
20 years ago
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/*
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* PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform.
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*
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* Copyright (C) 2003 Linda Xie <lxie@us.ibm.com>
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Send feedback to <lxie@us.ibm.com>,
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*
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*/
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#ifndef _PPC64PHP_H
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#define _PPC64PHP_H
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#include <linux/pci.h>
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#include "pci_hotplug.h"
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#define PHB 2
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#define HOTPLUG 1
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#define EMBEDDED 0
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#define DR_INDICATOR 9002
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#define DR_ENTITY_SENSE 9003
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#define POWER_ON 100
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#define POWER_OFF 0
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#define LED_OFF 0
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#define LED_ON 1 /* continuous on */
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#define LED_ID 2 /* slow blinking */
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#define LED_ACTION 3 /* fast blinking */
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/* Sensor values from rtas_get-sensor */
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#define EMPTY 0 /* No card in slot */
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#define PRESENT 1 /* Card in slot */
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#define MY_NAME "rpaphp"
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extern int debug;
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#define dbg(format, arg...) \
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do { \
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if (debug) \
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printk(KERN_DEBUG "%s: " format, \
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MY_NAME , ## arg); \
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} while (0)
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#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
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#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
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#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
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/* slot types */
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#define VIO_DEV 1
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#define PCI_DEV 2
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/* slot states */
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#define NOT_VALID 3
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#define NOT_CONFIGURED 2
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#define CONFIGURED 1
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#define EMPTY 0
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struct rpaphp_pci_func {
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struct pci_dev *pci_dev;
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struct list_head sibling;
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};
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/*
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* struct slot - slot information for each *physical* slot
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*/
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struct slot {
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struct list_head rpaphp_slot_list;
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int state;
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u32 index;
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u32 type;
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u32 power_domain;
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char *name;
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char *location;
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u8 removable;
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u8 dev_type; /* VIO or PCI */
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struct device_node *dn; /* slot's device_node in OFDT */
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/* dn has phb info */
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struct pci_dev *bridge; /* slot's pci_dev in pci_devices */
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union {
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struct list_head *pci_devs; /* pci_devs in PCI slot */
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struct vio_dev *vio_dev; /* vio_dev in VIO slot */
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} dev;
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struct hotplug_slot *hotplug_slot;
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};
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extern struct hotplug_slot_ops rpaphp_hotplug_slot_ops;
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extern struct list_head rpaphp_slot_head;
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extern int num_slots;
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/* function prototypes */
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/* rpaphp_pci.c */
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extern struct pci_dev *rpaphp_find_pci_dev(struct device_node *dn);
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extern int rpaphp_claim_resource(struct pci_dev *dev, int resource);
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extern int rpaphp_enable_pci_slot(struct slot *slot);
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extern int register_pci_slot(struct slot *slot);
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extern int rpaphp_unconfig_pci_adapter(struct slot *slot);
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extern int rpaphp_get_pci_adapter_status(struct slot *slot, int is_init, u8 * value);
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extern struct hotplug_slot *rpaphp_find_hotplug_slot(struct pci_dev *dev);
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/* rpaphp_core.c */
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extern int rpaphp_add_slot(struct device_node *dn);
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extern int rpaphp_remove_slot(struct slot *slot);
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extern int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
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char **drc_name, char **drc_type, int *drc_power_domain);
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/* rpaphp_vio.c */
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extern int rpaphp_get_vio_adapter_status(struct slot *slot, int is_init, u8 * value);
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extern int rpaphp_unconfig_vio_adapter(struct slot *slot);
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extern int register_vio_slot(struct device_node *dn);
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extern int rpaphp_enable_vio_slot(struct slot *slot);
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/* rpaphp_slot.c */
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extern void dealloc_slot_struct(struct slot *slot);
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extern struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
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extern int register_slot(struct slot *slot);
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extern int deregister_slot(struct slot *slot);
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extern int rpaphp_get_power_status(struct slot *slot, u8 * value);
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extern int rpaphp_set_attention_status(struct slot *slot, u8 status);
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#endif /* _PPC64PHP_H */
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