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1281 palkovsky 1
/*
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 * Copyright (C) 2006 Ondrej Palkovsky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup genericipc
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 * @{
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 */
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/** @file
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 */
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#ifndef KERN_IPC_IRQ_H_
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#define KERN_IPC_IRQ_H_
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/** Maximum length of IPC IRQ program */
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#define IRQ_MAX_PROG_SIZE 10
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typedef enum {
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    CMD_MEM_READ_1 = 0,
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    CMD_MEM_READ_2,
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    CMD_MEM_READ_4,
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    CMD_MEM_READ_8,
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    CMD_MEM_WRITE_1,
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    CMD_MEM_WRITE_2,
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    CMD_MEM_WRITE_4,
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    CMD_MEM_WRITE_8,
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    CMD_PORT_READ_1,
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    CMD_PORT_WRITE_1,
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    CMD_IA64_GETCHAR,
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    CMD_PPC32_GETCHAR,
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    CMD_LAST
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} irq_cmd_type;
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typedef struct {
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    irq_cmd_type cmd;
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    void *addr;
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    unsigned long long value;
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    int dstarg;
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} irq_cmd_t;
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typedef struct {
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    unsigned int cmdcount;
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    irq_cmd_t *cmds;
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} irq_code_t;
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#ifdef KERNEL
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#include <ipc/ipc.h>
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#include <typedefs.h>
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#include <arch/types.h>
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#include <adt/list.h>
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/** IPC notification config structure.
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 *
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 * Primarily, this structure is encapsulated in the irq_t structure.
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 * It is protected by irq_t::lock.
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 */
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struct ipc_notif_cfg {
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    bool notify;            /**< When false, notifications are not sent. */
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    answerbox_t *answerbox;     /**< Answerbox for notifications. */
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    unative_t method;       /**< Method to be used for the notification. */
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    irq_code_t *code;       /**< Top-half pseudocode. */
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    count_t counter;        /**< Counter. */
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    link_t link;            /**< Link between IRQs that are notifying the
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                         same answerbox. The list is protected by
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                         the answerbox irq_lock. */
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};
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extern int ipc_irq_register(answerbox_t *box, inr_t inr, devno_t devno, unative_t method,
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    irq_code_t *ucode);
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extern void ipc_irq_send_notif(irq_t *irq);
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extern void ipc_irq_send_msg(irq_t *irq, unative_t a1, unative_t a2, unative_t a3);
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extern void ipc_irq_unregister(answerbox_t *box, inr_t inr, devno_t devno);
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extern void ipc_irq_cleanup(answerbox_t *box);
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#endif
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#endif
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/** @}
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 */