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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4651 | pillai | 1 | /* |
| 2 | * Copyright (c) 2009 Vineeth Pillai |
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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 | |||
| 29 | /** @addtogroup genarch |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | /** @file |
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| 33 | * @brief Describes the pl050 keyboard/mouse controller |
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| 34 | */ |
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| 35 | |||
| 36 | /** |
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| 37 | * This file implements pl050 specific functions for keyboard and mouse |
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| 38 | */ |
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| 39 | |||
| 40 | #ifndef KERN_genarch_PL050_H |
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| 41 | #define KERN_genarch_PL050_H |
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| 42 | |||
| 43 | #include <ddi/irq.h> |
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| 44 | #include <arch/types.h> |
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| 45 | #include <console/chardev.h> |
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| 46 | #include <typedefs.h> |
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| 47 | |||
| 48 | |||
| 49 | /* |
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| 50 | * pl050 register offsets from the base address |
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| 51 | */ |
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| 52 | #define PL050_CR 0x00 |
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| 53 | #define PL050_STAT 0x04 |
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| 54 | #define PL050_DATA 0x08 |
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| 55 | #define PL050_CLOCKDIV 0x0C |
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| 56 | #define PL050_INTRSTAT 0x10 |
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| 57 | |||
| 58 | /* |
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| 59 | * Control Register Bits |
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| 60 | */ |
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| 61 | #define PL050_CR_TYPE (1 << 5) /* Type 0: PS2/AT mode, 1: No Line control bit mode */ |
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| 62 | #define PL050_CR_RXINTR (1 << 4) /* Recieve Interrupt Enable */ |
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| 63 | #define PL050_CR_TXINTR (1 << 3) /* Transmit Interrupt Enable */ |
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| 64 | #define PL050_CR_INTR (1 << 2) /* Interrupt Enable */ |
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| 65 | #define PL050_CR_FKMID (1 << 1) /* Force KMI Data Low */ |
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| 66 | #define PL050_CR_FKMIC 1 /* Force KMI Clock Low */ |
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| 67 | |||
| 68 | /* |
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| 69 | * Status register bits |
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| 70 | */ |
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| 71 | #define PL050_STAT_TXEMPTY (1 << 6) /* 1: Transmit register empty */ |
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| 72 | #define PL050_STAT_TXBUSY (1 << 5) /* 1: Busy, sending data */ |
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| 73 | #define PL050_STAT_RXFULL (1 << 4) /* 1: register Full */ |
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| 74 | #define PL050_STAT_RXBUSY (1 << 3) /* 1: Busy, recieving Data */ |
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| 75 | #define PL050_STAT_RXPARITY (1 << 2) /* odd parity of the last bit recieved */ |
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| 76 | #define PL050_STAT_KMIC (1 << 1) /* status of KMICLKIN */ |
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| 77 | #define PL050_STAT_KMID 1 /* status of KMIDATAIN */ |
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| 78 | |||
| 79 | /* |
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| 80 | * Interrupt status register bits. |
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| 81 | */ |
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| 82 | #define PL050_TX_INTRSTAT (1 << 1) /* Transmit intr asserted */ |
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| 83 | #define PL050_RX_INTRSTAT 1 /* Recieve intr asserted */ |
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| 84 | |||
| 85 | typedef struct { |
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| 86 | ioport8_t *base; |
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| 87 | ioport8_t *data; |
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| 88 | ioport8_t *status; |
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| 89 | ioport8_t *ctrl; |
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| 90 | } pl050_t; |
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| 91 | |||
| 92 | typedef struct { |
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| 93 | irq_t irq; |
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| 94 | pl050_t *pl050; |
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| 95 | indev_t *kbrdin; |
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| 96 | } pl050_instance_t; |
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| 97 | |||
| 98 | extern pl050_instance_t *pl050_init(pl050_t *, inr_t); |
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| 99 | extern void pl050_wire(pl050_instance_t *, indev_t *); |
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| 100 | |||
| 101 | |||
| 102 | #endif |
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| 103 | |||
| 104 | /** @} |
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| 105 | */ |