1 /*
2 * CompactPCI Hot Plug Core Functions
3 *
4 * Copyright (C) 2002 SOMA Networks, Inc.
5 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
6 * Copyright (C) 2001 IBM Corp.
7 *
8 * All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or (at
13 * your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
18 * NON INFRINGEMENT. See the GNU General Public License for more
19 * details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 * Send feedback to <scottm@somanetworks.com>
26 */
27
28 #ifndef _CPCI_HOTPLUG_H
29 #define _CPCI_HOTPLUG_H
30
31 #include <linux/types.h>
32 #include <linux/pci.h>
33 #include <linux/pci_hotplug.h>
34
35 /* PICMG 2.1 R2.0 HS CSR bits: */
36 #define HS_CSR_INS 0x0080
37 #define HS_CSR_EXT 0x0040
38 #define HS_CSR_PI 0x0030
39 #define HS_CSR_LOO 0x0008
40 #define HS_CSR_PIE 0x0004
41 #define HS_CSR_EIM 0x0002
42 #define HS_CSR_DHA 0x0001
43
44 struct slot {
45 u8 number;
46 unsigned int devfn;
47 struct pci_bus *bus;
48 struct pci_dev *dev;
49 unsigned int extracting;
50 struct hotplug_slot *hotplug_slot;
51 struct list_head slot_list;
52 };
53
54 struct cpci_hp_controller_ops {
55 int (*query_enum) (void);
56 int (*enable_irq) (void);
57 int (*disable_irq) (void);
58 int (*check_irq) (void *dev_id);
59 int (*hardware_test) (struct slot* slot, u32 value);
60 u8 (*get_power) (struct slot* slot);
61 int (*set_power) (struct slot* slot, int value);
62 };
63
64 struct cpci_hp_controller {
65 unsigned int irq;
66 unsigned long irq_flags;
67 char *devname;
68 void *dev_id;
69 char *name;
70 struct cpci_hp_controller_ops *ops;
71 };
72
73 static inline const char *slot_name(struct slot *slot)
74 {
75 return hotplug_slot_name(slot->hotplug_slot);
76 }
77
78 extern int cpci_hp_register_controller(struct cpci_hp_controller *controller);
79 extern int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);
80 extern int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);
81 extern int cpci_hp_unregister_bus(struct pci_bus *bus);
82 extern int cpci_hp_start(void);
83 extern int cpci_hp_stop(void);
84
85 /*
86 * Internal function prototypes, these functions should not be used by
87 * board/chassis drivers.
88 */
89 extern u8 cpci_get_attention_status(struct slot *slot);
90 extern u8 cpci_get_latch_status(struct slot *slot);
91 extern u8 cpci_get_adapter_status(struct slot *slot);
92 extern u16 cpci_get_hs_csr(struct slot * slot);
93 extern int cpci_set_attention_status(struct slot *slot, int status);
94 extern int cpci_check_and_clear_ins(struct slot * slot);
95 extern int cpci_check_ext(struct slot * slot);
96 extern int cpci_clear_ext(struct slot * slot);
97 extern int cpci_led_on(struct slot * slot);
98 extern int cpci_led_off(struct slot * slot);
99 extern int cpci_configure_slot(struct slot *slot);
100 extern int cpci_unconfigure_slot(struct slot *slot);
101
102 #endif /* _CPCI_HOTPLUG_H */
103
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