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 <linux/pci_hotplug.h>
32
33 #define DR_INDICATOR 9002
34 #define DR_ENTITY_SENSE 9003
35
36 #define POWER_ON 100
37 #define POWER_OFF 0
38
39 #define LED_OFF 0
40 #define LED_ON 1 /* continuous on */
41 #define LED_ID 2 /* slow blinking */
42 #define LED_ACTION 3 /* fast blinking */
43
44 /* Sensor values from rtas_get-sensor */
45 #define EMPTY 0 /* No card in slot */
46 #define PRESENT 1 /* Card in slot */
47
48 #define MY_NAME "rpaphp"
49 extern int rpaphp_debug;
50 #define dbg(format, arg...) \
51 do { \
52 if (rpaphp_debug) \
53 printk(KERN_DEBUG "%s: " format, \
54 MY_NAME , ## arg); \
55 } while (0)
56 #define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
57 #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
58 #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
59
60 /* slot states */
61
62 #define NOT_VALID 3
63 #define NOT_CONFIGURED 2
64 #define CONFIGURED 1
65 #define EMPTY 0
66
67 /*
68 * struct slot - slot information for each *physical* slot
69 */
70 struct slot {
71 struct list_head rpaphp_slot_list;
72 int state;
73 u32 index;
74 u32 type;
75 u32 power_domain;
76 char *name;
77 struct device_node *dn;
78 struct pci_bus *bus;
79 struct list_head *pci_devs;
80 struct hotplug_slot *hotplug_slot;
81 };
82
83 extern struct hotplug_slot_ops rpaphp_hotplug_slot_ops;
84 extern struct list_head rpaphp_slot_head;
85
86 /* function prototypes */
87
88 /* rpaphp_pci.c */
89 extern int rpaphp_enable_slot(struct slot *slot);
90 extern int rpaphp_get_sensor_state(struct slot *slot, int *state);
91
92 /* rpaphp_core.c */
93 extern int rpaphp_add_slot(struct device_node *dn);
94 extern int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
95 char **drc_name, char **drc_type, int *drc_power_domain);
96
97 /* rpaphp_slot.c */
98 extern void dealloc_slot_struct(struct slot *slot);
99 extern struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
100 extern int rpaphp_register_slot(struct slot *slot);
101 extern int rpaphp_deregister_slot(struct slot *slot);
102
103 #endif /* _PPC64PHP_H */
104
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