source: mainline/uspace/srv/kbd/arch/sparc64/src/kbd.c@ 72381f1

/*
 * Copyright (c) 2006 Martin Decky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup kbdsparc64 sparc64
 * @brief       HelenOS sparc64 arch dependent parts of uspace keyboard handler.
 * @ingroup  kbd
 * @{
 */ 
/** @file
 */

#include <arch/kbd.h>
#include <ipc/ipc.h>
#include <sysinfo.h>
#include <kbd.h>
#include <keys.h>
#include <stdio.h>
#include <types.h>
#include <genarch/kbd.h>

#define KBD_KEY_RELEASE         0x80
#define KBD_ALL_KEYS_UP         0x7f

/** Top-half pseudocode for z8530. */
irq_cmd_t z8530_cmds[] = {
        {
                CMD_MEM_READ_1,
                0,                      /**< Address. Will be patched in run-time. */
                0,                      /**< Value. Not used. */
                1                       /**< Arg 1 will contain the result. */
        }
};
        
irq_code_t z8530_kbd = {
        1,
        z8530_cmds
};

/** Top-half pseudocode for ns16550. */
irq_cmd_t ns16550_cmds[] = {
        {
                CMD_MEM_READ_1,
                0,                      /**< Address. Will be patched in run-time. */
                0,                      /**< Value. Not used. */
                1                       /**< Arg 1 will contain the result. */
        }
};
        
irq_code_t ns16550_kbd = {
        1,
        ns16550_cmds
};

#define KBD_Z8530       1
#define KBD_NS16550     2

int kbd_arch_init(void)
{
        int type = sysinfo_value("kbd.type");
        switch (type) {
        case KBD_Z8530:
                z8530_cmds[0].addr = (void *) sysinfo_value("kbd.address.virtual") + 6;
                ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"), 0, &z8530_kbd);
                break;
        case KBD_NS16550:
                ns16550_cmds[0].addr = (void *) sysinfo_value("kbd.address.virtual");
                ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"), 0, &ns16550_kbd);
                break;
        default:
                break;
        }
        return 0;
}

/** Process keyboard events */
int kbd_arch_process(keybuffer_t *keybuffer, ipc_call_t *call)
{
        int scan_code = IPC_GET_ARG1(*call);

        if (scan_code == KBD_ALL_KEYS_UP)
                return 1;
                
        if (scan_code & KBD_KEY_RELEASE)
                key_released(keybuffer, scan_code ^ KBD_KEY_RELEASE);
        else
                key_pressed(keybuffer, scan_code);

        return 1;
}

/** @}
 */