| #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 */ |