| 1 | /*
|
|---|
| 2 | * Copyright (c) 2009 Vineeth Pillai
|
|---|
| 3 | * All rights reserved.
|
|---|
| 4 | *
|
|---|
| 5 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 6 | * modification, are permitted provided that the following conditions
|
|---|
| 7 | * are met:
|
|---|
| 8 | *
|
|---|
| 9 | * - Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 13 | * documentation and/or other materials provided with the distribution.
|
|---|
| 14 | * - The name of the author may not be used to endorse or promote products
|
|---|
| 15 | * derived from this software without specific prior written permission.
|
|---|
| 16 | *
|
|---|
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|---|
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|---|
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|---|
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|---|
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|---|
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|---|
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 27 | */
|
|---|
| 28 |
|
|---|
| 29 | /** @addtogroup genarch
|
|---|
| 30 | * @{
|
|---|
| 31 | */
|
|---|
| 32 | /** @file
|
|---|
| 33 | * @brief Describes the pl050 keyboard/mouse controller
|
|---|
| 34 | */
|
|---|
| 35 |
|
|---|
| 36 | /**
|
|---|
| 37 | * This file implements pl050 specific functions for keyboard and mouse
|
|---|
| 38 | */
|
|---|
| 39 |
|
|---|
| 40 | #ifndef KERN_genarch_PL050_H
|
|---|
| 41 | #define KERN_genarch_PL050_H
|
|---|
| 42 |
|
|---|
| 43 | #include <ddi/irq.h>
|
|---|
| 44 | #include <console/chardev.h>
|
|---|
| 45 | #include <typedefs.h>
|
|---|
| 46 |
|
|---|
| 47 |
|
|---|
| 48 | /*
|
|---|
| 49 | * pl050 register offsets from the base address
|
|---|
| 50 | */
|
|---|
| 51 | #define PL050_CR 0x00
|
|---|
| 52 | #define PL050_STAT 0x04
|
|---|
| 53 | #define PL050_DATA 0x08
|
|---|
| 54 | #define PL050_CLOCKDIV 0x0C
|
|---|
| 55 | #define PL050_INTRSTAT 0x10
|
|---|
| 56 |
|
|---|
| 57 | /*
|
|---|
| 58 | * Control Register Bits
|
|---|
| 59 | */
|
|---|
| 60 | #define PL050_CR_TYPE (1 << 5) /* Type 0: PS2/AT mode, 1: No Line control bit mode */
|
|---|
| 61 | #define PL050_CR_RXINTR (1 << 4) /* Recieve Interrupt Enable */
|
|---|
| 62 | #define PL050_CR_TXINTR (1 << 3) /* Transmit Interrupt Enable */
|
|---|
| 63 | #define PL050_CR_INTR (1 << 2) /* Interrupt Enable */
|
|---|
| 64 | #define PL050_CR_FKMID (1 << 1) /* Force KMI Data Low */
|
|---|
| 65 | #define PL050_CR_FKMIC 1 /* Force KMI Clock Low */
|
|---|
| 66 |
|
|---|
| 67 | /*
|
|---|
| 68 | * Status register bits
|
|---|
| 69 | */
|
|---|
| 70 | #define PL050_STAT_TXEMPTY (1 << 6) /* 1: Transmit register empty */
|
|---|
| 71 | #define PL050_STAT_TXBUSY (1 << 5) /* 1: Busy, sending data */
|
|---|
| 72 | #define PL050_STAT_RXFULL (1 << 4) /* 1: register Full */
|
|---|
| 73 | #define PL050_STAT_RXBUSY (1 << 3) /* 1: Busy, recieving Data */
|
|---|
| 74 | #define PL050_STAT_RXPARITY (1 << 2) /* odd parity of the last bit received */
|
|---|
| 75 | #define PL050_STAT_KMIC (1 << 1) /* status of KMICLKIN */
|
|---|
| 76 | #define PL050_STAT_KMID 1 /* status of KMIDATAIN */
|
|---|
| 77 |
|
|---|
| 78 | /*
|
|---|
| 79 | * Interrupt status register bits.
|
|---|
| 80 | */
|
|---|
| 81 | #define PL050_TX_INTRSTAT (1 << 1) /* Transmit intr asserted */
|
|---|
| 82 | #define PL050_RX_INTRSTAT 1 /* Recieve intr asserted */
|
|---|
| 83 |
|
|---|
| 84 | typedef struct {
|
|---|
| 85 | ioport8_t *base;
|
|---|
| 86 | ioport8_t *data;
|
|---|
| 87 | ioport8_t *status;
|
|---|
| 88 | ioport8_t *ctrl;
|
|---|
| 89 | } pl050_t;
|
|---|
| 90 |
|
|---|
| 91 | typedef struct {
|
|---|
| 92 | irq_t irq;
|
|---|
| 93 | pl050_t *pl050;
|
|---|
| 94 | indev_t *kbrdin;
|
|---|
| 95 | } pl050_instance_t;
|
|---|
| 96 |
|
|---|
| 97 | extern pl050_instance_t *pl050_init(pl050_t *, inr_t);
|
|---|
| 98 | extern void pl050_wire(pl050_instance_t *, indev_t *);
|
|---|
| 99 |
|
|---|
| 100 |
|
|---|
| 101 | #endif
|
|---|
| 102 |
|
|---|
| 103 | /** @}
|
|---|
| 104 | */
|
|---|
