86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
|
/*
|
||
|
|
* IBM ASM Service Processor Device Driver
|
||
|
|
*
|
||
|
|
* 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 of the License, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
||
|
|
*
|
||
|
|
* Copyright (C) IBM Corporation, 2004
|
||
|
|
*
|
||
|
|
* Author: Max Asböck <amax@us.ibm.com>
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "ibmasm.h"
|
||
|
|
#include "lowlevel.h"
|
||
|
|
#include "i2o.h"
|
||
|
|
#include "dot_command.h"
|
||
|
|
#include "remote.h"
|
||
|
|
|
||
|
|
static struct i2o_header header = I2O_HEADER_TEMPLATE;
|
||
|
|
|
||
|
|
|
||
|
|
int ibmasm_send_i2o_message(struct service_processor *sp)
|
||
|
|
{
|
||
|
|
u32 mfa;
|
||
|
|
unsigned int command_size;
|
||
|
|
struct i2o_message *message;
|
||
|
|
struct command *command = sp->current_command;
|
||
|
|
|
||
|
|
mfa = get_mfa_inbound(sp->base_address);
|
||
|
|
if (!mfa)
|
||
|
|
return 1;
|
||
|
|
|
||
|
|
command_size = get_dot_command_size(command->buffer);
|
||
|
|
header.message_size = outgoing_message_size(command_size);
|
||
|
|
|
||
|
|
message = get_i2o_message(sp->base_address, mfa);
|
||
|
|
|
||
|
|
memcpy_toio(&message->header, &header, sizeof(struct i2o_header));
|
||
|
|
memcpy_toio(&message->data, command->buffer, command_size);
|
||
|
|
|
||
|
|
set_mfa_inbound(sp->base_address, mfa);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
irqreturn_t ibmasm_interrupt_handler(int irq, void * dev_id)
|
||
|
|
{
|
||
|
|
u32 mfa;
|
||
|
|
struct service_processor *sp = (struct service_processor *)dev_id;
|
||
|
|
void __iomem *base_address = sp->base_address;
|
||
|
|
char tsbuf[32];
|
||
|
|
|
||
|
|
if (!sp_interrupt_pending(base_address))
|
||
|
|
return IRQ_NONE;
|
||
|
|
|
||
|
|
dbg("respond to interrupt at %s\n", get_timestamp(tsbuf));
|
||
|
|
|
||
|
|
if (mouse_interrupt_pending(sp)) {
|
||
|
|
ibmasm_handle_mouse_interrupt(sp);
|
||
|
|
clear_mouse_interrupt(sp);
|
||
|
|
}
|
||
|
|
|
||
|
|
mfa = get_mfa_outbound(base_address);
|
||
|
|
if (valid_mfa(mfa)) {
|
||
|
|
struct i2o_message *msg = get_i2o_message(base_address, mfa);
|
||
|
|
ibmasm_receive_message(sp, &msg->data, incoming_data_size(msg));
|
||
|
|
} else
|
||
|
|
dbg("didn't get a valid MFA\n");
|
||
|
|
|
||
|
|
set_mfa_outbound(base_address, mfa);
|
||
|
|
dbg("finished interrupt at %s\n", get_timestamp(tsbuf));
|
||
|
|
|
||
|
|
return IRQ_HANDLED;
|
||
|
|
}
|