blob: 2259d4ce3846f3b1badc3b52977d1658c9aed3e5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
#ifndef _POWERPC_PMI_H
#define _POWERPC_PMI_H
/*
* Definitions for talking with PMI device on PowerPC
*
* PMI (Platform Management Interrupt) is a way to communicate
* with the BMC (Baseboard Management Controller) via interrupts.
* Unlike IPMI it is bidirectional and has a low latency.
*
* (C) Copyright IBM Deutschland Entwicklung GmbH 2005
*
* Author: Christian Krafft <krafft@de.ibm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef __KERNEL__
#include <asm/of_device.h>
#define PMI_TYPE_FREQ_CHANGE 0x01
#define PMI_READ_TYPE 0
#define PMI_READ_DATA0 1
#define PMI_READ_DATA1 2
#define PMI_READ_DATA2 3
#define PMI_WRITE_TYPE 4
#define PMI_WRITE_DATA0 5
#define PMI_WRITE_DATA1 6
#define PMI_WRITE_DATA2 7
#define PMI_ACK 0x80
#define PMI_TIMEOUT 100
typedef struct {
u8 type;
u8 data0;
u8 data1;
u8 data2;
} pmi_message_t;
struct pmi_handler {
struct list_head node;
u8 type;
void (*handle_pmi_message) (pmi_message_t);
};
int pmi_register_handler(struct pmi_handler *);
void pmi_unregister_handler(struct pmi_handler *);
int pmi_send_message(pmi_message_t);
#endif /* __KERNEL__ */
#endif /* _POWERPC_PMI_H */
|
