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4419 trochtova 1 
/*
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 * Copyright (c) 2006 Martin Decky
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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 kbd_port
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 * @ingroup  kbd
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 * @{
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 */
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/** @file
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 * @brief   Z8530 keyboard port driver.
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 */
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#include <ipc/ipc.h>
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#include <ipc/bus.h>
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#include <async.h>
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#include <sysinfo.h>
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#include <kbd.h>
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#include <kbd_port.h>
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#include <sun.h>
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#include <sys/types.h>
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#include <ddi.h>
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#define CHAN_A_STATUS   4
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#define CHAN_A_DATA 6
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#define RR0_RCA 1
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static irq_cmd_t z8530_cmds[] = {
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    {
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        .cmd = CMD_PIO_READ_8,
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        .addr = (void *) 0, /* will be patched in run-time */
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        .dstarg = 1
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    },
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    {
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        .cmd = CMD_BTEST,
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        .value = RR0_RCA,
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        .srcarg = 1,
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        .dstarg = 3
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    },
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    {
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        .cmd = CMD_PREDICATE,
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        .value = 2,
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        .srcarg = 3
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    },
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    {
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        .cmd = CMD_PIO_READ_8,
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        .addr = (void *) 0, /* will be patched in run-time */
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        .dstarg = 2
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    },
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    {
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        .cmd = CMD_ACCEPT
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    }
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};
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irq_code_t z8530_kbd = {
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    sizeof(z8530_cmds) / sizeof(irq_cmd_t),
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    z8530_cmds
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};
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static void z8530_irq_handler(ipc_callid_t iid, ipc_call_t *call);
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int z8530_port_init(void)
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{
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    async_set_interrupt_received(z8530_irq_handler);
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    z8530_cmds[0].addr = (void *) sysinfo_value("kbd.address.kernel") +
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        CHAN_A_STATUS;
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    z8530_cmds[3].addr = (void *) sysinfo_value("kbd.address.kernel") +
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        CHAN_A_DATA;
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    ipc_register_irq(sysinfo_value("kbd.inr"), device_assign_devno(),
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        sysinfo_value("kbd.inr"), &z8530_kbd);
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    return 0;
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}
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4420 trochtova 98 
void z8530_port_yield(void)
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{
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}
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void z8530_port_reclaim(void)
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{
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}
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4419 trochtova 106 
static void z8530_irq_handler(ipc_callid_t iid, ipc_call_t *call)
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{
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    int scan_code = IPC_GET_ARG2(*call);
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    kbd_push_scancode(scan_code);
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    if (cir_service)
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        async_msg_1(cir_phone, BUS_CLEAR_INTERRUPT,
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            IPC_GET_METHOD(*call));
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}
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/** @}
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 */