| 1 | /*
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| 2 | * Copyright (c) 2007 Michal Kebrt
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup kbd_port
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| 30 | * @{
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| 31 | * @ingroup kbd
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| 32 | */
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| 33 | /** @file
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| 34 | * @brief GXEmul keyboard port driver.
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| 35 | */
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| 36 |
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| 37 | #include <ipc/ipc.h>
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| 38 | #include <async.h>
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| 39 | #include <sysinfo.h>
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| 40 | #include <kbd_port.h>
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| 41 | #include <kbd.h>
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| 42 |
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| 43 | static irq_cmd_t gxemul_cmds[] = {
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| 44 | {
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| 45 | .cmd = CMD_PIO_READ_8,
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| 46 | .addr = (void *) 0, /* will be patched in run-time */
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| 47 | .dstarg = 2,
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| 48 | },
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| 49 | {
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| 50 | .cmd = CMD_ACCEPT
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| 51 | }
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| 52 | };
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| 53 |
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| 54 | static irq_code_t gxemul_kbd = {
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| 55 | sizeof(gxemul_cmds) / sizeof(irq_cmd_t),
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| 56 | gxemul_cmds
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| 57 | };
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| 58 |
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| 59 | static void gxemul_irq_handler(ipc_callid_t iid, ipc_call_t *call);
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| 60 |
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| 61 | /** Initializes keyboard handler. */
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| 62 | int kbd_port_init(void)
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| 63 | {
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| 64 | async_set_interrupt_received(gxemul_irq_handler);
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| 65 | gxemul_cmds[0].addr = (void *) sysinfo_value("kbd.address.virtual");
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| 66 | ipc_register_irq(sysinfo_value("kbd.inr"), sysinfo_value("kbd.devno"),
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| 67 | 0, &gxemul_kbd);
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| 68 | return 0;
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| 69 | }
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| 70 |
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| 71 | /** Process data sent when a key is pressed.
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| 72 | *
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| 73 | * @param keybuffer Buffer of pressed keys.
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| 74 | * @param call IPC call.
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| 75 | *
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| 76 | * @return Always 1.
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| 77 | */
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| 78 | static void gxemul_irq_handler(ipc_callid_t iid, ipc_call_t *call)
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| 79 | {
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| 80 | int scan_code = IPC_GET_ARG2(*call);
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| 81 |
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| 82 | kbd_push_scancode(scan_code);
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| 83 | }
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| 84 |
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| 85 | /** @}
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| 86 | */
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