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1da177e4 LT |
1 | /* |
2 | * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform. | |
3 | * | |
4 | * Copyright (C) 2003 Linda Xie <lxie@us.ibm.com> | |
5 | * | |
6 | * All rights reserved. | |
7 | * | |
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. | |
12 | * | |
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 | |
17 | * details. | |
18 | * | |
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. | |
22 | * | |
23 | * Send feedback to <lxie@us.ibm.com>, | |
24 | * | |
25 | */ | |
26 | ||
27 | #ifndef _PPC64PHP_H | |
28 | #define _PPC64PHP_H | |
29 | ||
30 | #include <linux/pci.h> | |
31 | #include "pci_hotplug.h" | |
32 | ||
33 | #define PHB 2 | |
34 | #define HOTPLUG 1 | |
35 | #define EMBEDDED 0 | |
36 | ||
37 | #define DR_INDICATOR 9002 | |
38 | #define DR_ENTITY_SENSE 9003 | |
39 | ||
40 | #define POWER_ON 100 | |
41 | #define POWER_OFF 0 | |
42 | ||
43 | #define LED_OFF 0 | |
44 | #define LED_ON 1 /* continuous on */ | |
45 | #define LED_ID 2 /* slow blinking */ | |
46 | #define LED_ACTION 3 /* fast blinking */ | |
47 | ||
48 | /* Sensor values from rtas_get-sensor */ | |
49 | #define EMPTY 0 /* No card in slot */ | |
50 | #define PRESENT 1 /* Card in slot */ | |
51 | ||
52 | #define MY_NAME "rpaphp" | |
53 | extern int debug; | |
54 | #define dbg(format, arg...) \ | |
55 | do { \ | |
56 | if (debug) \ | |
57 | printk(KERN_DEBUG "%s: " format, \ | |
58 | MY_NAME , ## arg); \ | |
59 | } while (0) | |
60 | #define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg) | |
61 | #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg) | |
62 | #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) | |
63 | ||
64 | /* slot types */ | |
65 | #define VIO_DEV 1 | |
66 | #define PCI_DEV 2 | |
67 | ||
68 | /* slot states */ | |
69 | ||
70 | #define NOT_VALID 3 | |
71 | #define NOT_CONFIGURED 2 | |
72 | #define CONFIGURED 1 | |
73 | #define EMPTY 0 | |
74 | ||
75 | struct rpaphp_pci_func { | |
76 | struct pci_dev *pci_dev; | |
77 | struct list_head sibling; | |
78 | }; | |
79 | ||
80 | /* | |
81 | * struct slot - slot information for each *physical* slot | |
82 | */ | |
83 | struct slot { | |
84 | struct list_head rpaphp_slot_list; | |
85 | int state; | |
86 | u32 index; | |
87 | u32 type; | |
88 | u32 power_domain; | |
89 | char *name; | |
90 | char *location; | |
91 | u8 removable; | |
92 | u8 dev_type; /* VIO or PCI */ | |
93 | struct device_node *dn; /* slot's device_node in OFDT */ | |
94 | /* dn has phb info */ | |
95 | struct pci_dev *bridge; /* slot's pci_dev in pci_devices */ | |
96 | union { | |
97 | struct list_head *pci_devs; /* pci_devs in PCI slot */ | |
98 | struct vio_dev *vio_dev; /* vio_dev in VIO slot */ | |
99 | } dev; | |
100 | struct hotplug_slot *hotplug_slot; | |
101 | }; | |
102 | ||
103 | extern struct hotplug_slot_ops rpaphp_hotplug_slot_ops; | |
104 | extern struct list_head rpaphp_slot_head; | |
105 | extern int num_slots; | |
106 | ||
107 | /* function prototypes */ | |
108 | ||
109 | /* rpaphp_pci.c */ | |
110 | extern struct pci_dev *rpaphp_find_pci_dev(struct device_node *dn); | |
111 | extern int rpaphp_claim_resource(struct pci_dev *dev, int resource); | |
112 | extern int rpaphp_enable_pci_slot(struct slot *slot); | |
113 | extern int register_pci_slot(struct slot *slot); | |
114 | extern int rpaphp_unconfig_pci_adapter(struct slot *slot); | |
115 | extern int rpaphp_get_pci_adapter_status(struct slot *slot, int is_init, u8 * value); | |
116 | extern struct hotplug_slot *rpaphp_find_hotplug_slot(struct pci_dev *dev); | |
117 | ||
118 | /* rpaphp_core.c */ | |
119 | extern int rpaphp_add_slot(struct device_node *dn); | |
120 | extern int rpaphp_remove_slot(struct slot *slot); | |
121 | extern int rpaphp_get_drc_props(struct device_node *dn, int *drc_index, | |
122 | char **drc_name, char **drc_type, int *drc_power_domain); | |
123 | ||
124 | /* rpaphp_vio.c */ | |
125 | extern int rpaphp_get_vio_adapter_status(struct slot *slot, int is_init, u8 * value); | |
126 | extern int rpaphp_unconfig_vio_adapter(struct slot *slot); | |
127 | extern int register_vio_slot(struct device_node *dn); | |
128 | extern int rpaphp_enable_vio_slot(struct slot *slot); | |
129 | ||
130 | /* rpaphp_slot.c */ | |
131 | extern void dealloc_slot_struct(struct slot *slot); | |
132 | extern struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain); | |
133 | extern int register_slot(struct slot *slot); | |
134 | extern int deregister_slot(struct slot *slot); | |
135 | extern int rpaphp_get_power_status(struct slot *slot, u8 * value); | |
136 | extern int rpaphp_set_attention_status(struct slot *slot, u8 status); | |
137 | ||
138 | #endif /* _PPC64PHP_H */ |