67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
|
#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__
|
||
|
|
|
||
|
|
#define PMI_TYPE_FREQ_CHANGE 0x01
|
||
|
|
#define PMI_TYPE_POWER_BUTTON 0x02
|
||
|
|
#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 */
|