2 * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform.
4 * Copyright (C) 2003 Linda Xie <lxie@us.ibm.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or (at
11 * your option) any later version.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
16 * NON INFRINGEMENT. See the GNU General Public License for more
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 * Send feedback to <lxie@us.ibm.com>,
30 #include <linux/pci.h>
31 #include "pci_hotplug.h"
36 #define DR_INDICATOR 9002
37 #define DR_ENTITY_SENSE 9003
43 #define LED_ON 1 /* continuous on */
44 #define LED_ID 2 /* slow blinking */
45 #define LED_ACTION 3 /* fast blinking */
47 /* Error status from rtas_get-sensor */
48 #define NEED_POWER -9000 /* slot must be power up and unisolated to get state */
49 #define PWR_ONLY -9001 /* slot must be powerd up to get state, leave isolated */
50 #define ERR_SENSE_USE -9002 /* No DR operation will succeed, slot is unusable */
52 /* Sensor values from rtas_get-sensor */
53 #define EMPTY 0 /* No card in slot */
54 #define PRESENT 1 /* Card in slot */
56 #define MY_NAME "rpaphp"
58 #define dbg(format, arg...) \
61 printk(KERN_DEBUG "%s: " format, \
64 #define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
65 #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
66 #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
75 #define NOT_CONFIGURED 2
79 struct rpaphp_pci_func {
80 struct pci_dev *pci_dev;
81 struct list_head sibling;
85 * struct slot - slot information for each *physical* slot
88 struct list_head rpaphp_slot_list;
96 u8 dev_type; /* VIO or PCI */
97 struct device_node *dn; /* slot's device_node in OFDT */
99 struct pci_dev *bridge; /* slot's pci_dev in pci_devices */
101 struct list_head pci_funcs; /* pci_devs in PCI slot */
102 struct vio_dev *vio_dev; /* vio_dev in VIO slot */
104 struct hotplug_slot *hotplug_slot;
107 extern struct hotplug_slot_ops rpaphp_hotplug_slot_ops;
108 extern struct list_head rpaphp_slot_head;
109 extern int num_slots;
111 static inline int is_hotplug_capable(struct device_node *dn)
113 unsigned char *ptr = get_property(dn, "ibm,fw-pci-hot-plug-ctrl", NULL);
115 return (int) (ptr != NULL);
118 /* function prototypes */
121 extern struct pci_dev *rpaphp_find_pci_dev(struct device_node *dn);
122 extern int rpaphp_claim_resource(struct pci_dev *dev, int resource);
123 extern int rpaphp_enable_pci_slot(struct slot *slot);
124 extern int register_pci_slot(struct slot *slot);
125 extern int rpaphp_unconfig_pci_adapter(struct slot *slot);
126 extern int rpaphp_get_pci_adapter_status(struct slot *slot, int is_init, u8 * value);
127 extern struct hotplug_slot *rpaphp_find_hotplug_slot(struct pci_dev *dev);
130 extern int rpaphp_add_slot(struct device_node *dn);
131 extern int rpaphp_remove_slot(struct slot *slot);
132 extern char *rpaphp_get_drc_name(struct device_node *dn);
135 extern int rpaphp_get_vio_adapter_status(struct slot *slot, int is_init, u8 * value);
136 extern int rpaphp_unconfig_vio_adapter(struct slot *slot);
137 extern int register_vio_slot(struct device_node *dn);
138 extern int rpaphp_enable_vio_slot(struct slot *slot);
141 extern void dealloc_slot_struct(struct slot *slot);
142 extern struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
143 extern int register_slot(struct slot *slot);
144 extern int deregister_slot(struct slot *slot);
145 extern int rpaphp_get_power_status(struct slot *slot, u8 * value);
146 extern int rpaphp_set_attention_status(struct slot *slot, u8 status);
148 #endif /* _PPC64PHP_H */