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/*

 * 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;

}