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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
44struct 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
54struct 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
64struct 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
73static inline const char *slot_name(struct slot *slot)
74{
75 return hotplug_slot_name(slot->hotplug_slot);
76}
77
78extern int cpci_hp_register_controller(struct cpci_hp_controller *controller);
79extern int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);
80extern int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);
81extern int cpci_hp_unregister_bus(struct pci_bus *bus);
82extern int cpci_hp_start(void);
83extern int cpci_hp_stop(void);
84
85/*
86 * Internal function prototypes, these functions should not be used by
87 * board/chassis drivers.
88 */
89extern u8 cpci_get_attention_status(struct slot *slot);
90extern u8 cpci_get_latch_status(struct slot *slot);
91extern u8 cpci_get_adapter_status(struct slot *slot);
92extern u16 cpci_get_hs_csr(struct slot * slot);
93extern int cpci_set_attention_status(struct slot *slot, int status);
94extern int cpci_check_and_clear_ins(struct slot * slot);
95extern int cpci_check_ext(struct slot * slot);
96extern int cpci_clear_ext(struct slot * slot);
97extern int cpci_led_on(struct slot * slot);
98extern int cpci_led_off(struct slot * slot);
99extern int cpci_configure_slot(struct slot *slot);
100extern int cpci_unconfigure_slot(struct slot *slot);
101
102#endif /* _CPCI_HOTPLUG_H */
1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * CompactPCI Hot Plug Core Functions
4 *
5 * Copyright (C) 2002 SOMA Networks, Inc.
6 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
7 * Copyright (C) 2001 IBM Corp.
8 *
9 * All rights reserved.
10 *
11 * Send feedback to <scottm@somanetworks.com>
12 */
13
14#ifndef _CPCI_HOTPLUG_H
15#define _CPCI_HOTPLUG_H
16
17#include <linux/types.h>
18#include <linux/pci.h>
19#include <linux/pci_hotplug.h>
20
21/* PICMG 2.1 R2.0 HS CSR bits: */
22#define HS_CSR_INS 0x0080
23#define HS_CSR_EXT 0x0040
24#define HS_CSR_PI 0x0030
25#define HS_CSR_LOO 0x0008
26#define HS_CSR_PIE 0x0004
27#define HS_CSR_EIM 0x0002
28#define HS_CSR_DHA 0x0001
29
30struct slot {
31 u8 number;
32 unsigned int devfn;
33 struct pci_bus *bus;
34 struct pci_dev *dev;
35 unsigned int latch_status:1;
36 unsigned int adapter_status:1;
37 unsigned int extracting;
38 struct hotplug_slot hotplug_slot;
39 struct list_head slot_list;
40};
41
42struct cpci_hp_controller_ops {
43 int (*query_enum)(void);
44 int (*enable_irq)(void);
45 int (*disable_irq)(void);
46 int (*check_irq)(void *dev_id);
47 int (*hardware_test)(struct slot *slot, u32 value);
48 u8 (*get_power)(struct slot *slot);
49 int (*set_power)(struct slot *slot, int value);
50};
51
52struct cpci_hp_controller {
53 unsigned int irq;
54 unsigned long irq_flags;
55 char *devname;
56 void *dev_id;
57 char *name;
58 struct cpci_hp_controller_ops *ops;
59};
60
61static inline const char *slot_name(struct slot *slot)
62{
63 return hotplug_slot_name(&slot->hotplug_slot);
64}
65
66static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot)
67{
68 return container_of(hotplug_slot, struct slot, hotplug_slot);
69}
70
71int cpci_hp_register_controller(struct cpci_hp_controller *controller);
72int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);
73int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);
74int cpci_hp_unregister_bus(struct pci_bus *bus);
75int cpci_hp_start(void);
76int cpci_hp_stop(void);
77
78/* Global variables */
79extern int cpci_debug;
80
81/*
82 * Internal function prototypes, these functions should not be used by
83 * board/chassis drivers.
84 */
85u8 cpci_get_attention_status(struct slot *slot);
86u8 cpci_get_latch_status(struct slot *slot);
87u8 cpci_get_adapter_status(struct slot *slot);
88u16 cpci_get_hs_csr(struct slot *slot);
89int cpci_set_attention_status(struct slot *slot, int status);
90int cpci_check_and_clear_ins(struct slot *slot);
91int cpci_check_ext(struct slot *slot);
92int cpci_clear_ext(struct slot *slot);
93int cpci_led_on(struct slot *slot);
94int cpci_led_off(struct slot *slot);
95int cpci_configure_slot(struct slot *slot);
96int cpci_unconfigure_slot(struct slot *slot);
97
98#ifdef CONFIG_HOTPLUG_PCI_CPCI
99int cpci_hotplug_init(int debug);
100#else
101static inline int cpci_hotplug_init(int debug) { return 0; }
102#endif
103
104#endif /* _CPCI_HOTPLUG_H */