| 1 | /*
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| 2 | * Copyright (c) 2009 Vineeth Pillai
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| 3 | * Copyright (c) 2014 Jiri Svoboda
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | /** @addtogroup pl050
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| 31 | * @{
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| 32 | */
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| 33 | /** @file ARM PrimeCell PS2 Keyboard/Mouse Interface (PL050) registers
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| 34 | */
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| 35 |
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| 36 | #ifndef PL050_HW_H
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| 37 | #define PL050_HW_H
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| 38 |
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| 39 | #include <stdint.h>
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| 40 |
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| 41 | typedef struct {
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| 42 | /** Control register */
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| 43 | uint8_t cr;
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| 44 | /** Padding */
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| 45 | uint8_t pad1[3];
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| 46 | /** Status register */
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| 47 | uint8_t stat;
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| 48 | /** Padding */
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| 49 | uint8_t pad5[3];
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| 50 | /** Received data */
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| 51 | uint8_t data;
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| 52 | /** Padding */
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| 53 | uint8_t pad9[3];
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| 54 | /** Clock divisor */
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| 55 | uint8_t clkdiv;
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| 56 | /** Padding */
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| 57 | uint8_t pad13[3];
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| 58 | /** Interrupt status register */
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| 59 | uint8_t ir;
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| 60 | /** Padding */
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| 61 | uint8_t pad17[3];
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| 62 | } kmi_regs_t;
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| 63 |
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| 64 | typedef enum {
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| 65 | /** 0 = PS2 mode, 1 = No line control bit mode */
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| 66 | kmi_cr_type = 5,
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| 67 | /** Enable receiver interrupt */
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| 68 | kmi_cr_rxintr = 4,
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| 69 | /** Enable transmitter interrupt */
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| 70 | kmi_cr_txintr = 3,
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| 71 | /** Enable PrimeCell KMI */
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| 72 | kmi_cr_enable = 2,
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| 73 | /** Force KMI data LOW */
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| 74 | kmi_cr_forcedata = 1,
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| 75 | /** Force KMI clock LOW */
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| 76 | kmi_cr_forceclock = 0
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| 77 | } kmi_cr_bits_t;
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| 78 |
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| 79 | typedef enum {
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| 80 | kmi_stat_txempty = 6,
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| 81 | kmi_stat_txbusy = 5,
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| 82 | kmi_stat_rxfull = 4,
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| 83 | kmi_stat_rxbusy = 3,
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| 84 | kmi_stat_rxparity = 2,
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| 85 | kmi_stat_clkin = 1,
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| 86 | kmi_stat_datain = 0
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| 87 | } kmi_stat_bits_t;
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| 88 |
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| 89 | #endif
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| 90 |
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| 91 | /** @}
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| 92 | */
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