| 1 | /*
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| 2 | * Copyright (c) 2006 Josef Cejka
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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 | * @ingroup kbd
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| 31 | * @{
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| 32 | */
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| 33 |
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| 34 | /** @file
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| 35 | * @brief i8042 port driver.
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| 36 | */
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| 37 |
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| 38 | #ifndef i8042_H_
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| 39 | #define i8042_H_
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| 40 |
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| 41 | #include <sys/types.h>
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| 42 | #include <libarch/ddi.h>
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| 43 | #include <async.h>
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| 44 |
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| 45 | /** i8042 HW I/O interface */
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| 46 | typedef struct {
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| 47 | ioport8_t data;
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| 48 | uint8_t pad[3];
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| 49 | ioport8_t status;
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| 50 | } __attribute__ ((packed)) i8042_regs_t;
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| 51 |
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| 52 | /** Softstate structure, one for each serial port (primary and aux). */
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| 53 | typedef struct {
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| 54 | service_id_t service_id;
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| 55 | async_sess_t *client_sess;
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| 56 | } i8042_port_t;
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| 57 |
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| 58 | enum {
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| 59 | DEVID_PRI = 0, /**< primary device */
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| 60 | DEVID_AUX = 1, /**< AUX device */
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| 61 | MAX_DEVS = 2
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| 62 | };
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| 63 |
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| 64 | typedef struct {
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| 65 | i8042_regs_t *regs;
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| 66 | i8042_port_t port[MAX_DEVS];
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| 67 | } i8042_dev_t;
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| 68 |
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| 69 | #endif
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| 70 |
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| 71 | /**
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| 72 | * @}
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| 73 | */
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