| 1 | /*
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| 2 | * Copyright (c) 2006 Martin Decky
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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 genarch
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| 30 | * @{
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| 31 | */
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| 32 | /** @file
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| 33 | */
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| 34 |
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| 35 | #ifndef KERN_CUDA_H_
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| 36 | #define KERN_CUDA_H_
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| 37 |
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| 38 | #include <ddi/irq.h>
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| 39 | #include <arch/types.h>
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| 40 | #include <console/chardev.h>
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| 41 | #include <synch/spinlock.h>
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| 42 |
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| 43 | typedef struct {
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| 44 | uint8_t b;
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| 45 | uint8_t pad0[0x1ff];
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| 46 |
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| 47 | uint8_t a;
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| 48 | uint8_t pad1[0x1ff];
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| 49 |
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| 50 | uint8_t dirb;
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| 51 | uint8_t pad2[0x1ff];
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| 52 |
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| 53 | uint8_t dira;
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| 54 | uint8_t pad3[0x1ff];
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| 55 |
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| 56 | uint8_t t1cl;
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| 57 | uint8_t pad4[0x1ff];
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| 58 |
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| 59 | uint8_t t1ch;
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| 60 | uint8_t pad5[0x1ff];
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| 61 |
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| 62 | uint8_t t1ll;
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| 63 | uint8_t pad6[0x1ff];
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| 64 |
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| 65 | uint8_t t1lh;
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| 66 | uint8_t pad7[0x1ff];
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| 67 |
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| 68 | uint8_t t2cl;
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| 69 | uint8_t pad8[0x1ff];
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| 70 |
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| 71 | uint8_t t2ch;
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| 72 | uint8_t pad9[0x1ff];
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| 73 |
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| 74 | uint8_t sr;
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| 75 | uint8_t pad10[0x1ff];
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| 76 |
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| 77 | uint8_t acr;
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| 78 | uint8_t pad11[0x1ff];
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| 79 |
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| 80 | uint8_t pcr;
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| 81 | uint8_t pad12[0x1ff];
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| 82 |
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| 83 | uint8_t ifr;
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| 84 | uint8_t pad13[0x1ff];
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| 85 |
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| 86 | uint8_t ier;
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| 87 | uint8_t pad14[0x1ff];
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| 88 |
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| 89 | uint8_t anh;
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| 90 | uint8_t pad15[0x1ff];
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| 91 | } cuda_t;
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| 92 |
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| 93 | enum {
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| 94 | CUDA_RCV_BUF_SIZE = 5
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| 95 | };
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| 96 |
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| 97 | enum cuda_xfer_state {
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| 98 | cx_listen,
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| 99 | cx_receive,
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| 100 | cx_rcv_end,
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| 101 | cx_send_start,
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| 102 | cx_send
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| 103 | };
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| 104 |
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| 105 | typedef struct {
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| 106 | irq_t irq;
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| 107 | cuda_t *cuda;
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| 108 | indev_t *kbrdin;
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| 109 | uint8_t rcv_buf[CUDA_RCV_BUF_SIZE];
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| 110 | uint8_t snd_buf[CUDA_RCV_BUF_SIZE];
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| 111 | size_t bidx;
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| 112 | size_t snd_bytes;
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| 113 | enum cuda_xfer_state xstate;
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| 114 | SPINLOCK_DECLARE(dev_lock);
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| 115 | } cuda_instance_t;
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| 116 |
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| 117 | extern cuda_instance_t *cuda_init(cuda_t *, inr_t, cir_t, void *);
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| 118 | extern void cuda_wire(cuda_instance_t *, indev_t *);
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| 119 |
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| 120 | #endif
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| 121 |
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| 122 | /** @}
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| 123 | */
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