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4377 svoboda 1
/*
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 * Copyright (c) 2006 Martin Decky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup genarch
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 * @{
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 */
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/** @file
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 */
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#ifndef KERN_CUDA_H_
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#define KERN_CUDA_H_
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#include <ddi/irq.h>
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#include <arch/types.h>
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#include <console/chardev.h>
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#include <synch/spinlock.h>
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typedef struct {
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    uint8_t b;
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    uint8_t pad0[0x1ff];
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    uint8_t a;
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    uint8_t pad1[0x1ff];
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    uint8_t dirb;
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    uint8_t pad2[0x1ff];
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    uint8_t dira;
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    uint8_t pad3[0x1ff];
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    uint8_t t1cl;
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    uint8_t pad4[0x1ff];
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    uint8_t t1ch;
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    uint8_t pad5[0x1ff];
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    uint8_t t1ll;
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    uint8_t pad6[0x1ff];
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    uint8_t t1lh;
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    uint8_t pad7[0x1ff];
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    uint8_t t2cl;
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    uint8_t pad8[0x1ff];
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    uint8_t t2ch;
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    uint8_t pad9[0x1ff];
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    uint8_t sr;
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    uint8_t pad10[0x1ff];
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    uint8_t acr;
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    uint8_t pad11[0x1ff];
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    uint8_t pcr;
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    uint8_t pad12[0x1ff];
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    uint8_t ifr;
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    uint8_t pad13[0x1ff];
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    uint8_t ier;
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    uint8_t pad14[0x1ff];
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    uint8_t anh;
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    uint8_t pad15[0x1ff];
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} cuda_t;
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enum {
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    CUDA_RCV_BUF_SIZE = 5
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};
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enum cuda_xfer_state {
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    cx_listen,
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    cx_receive,
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    cx_rcv_end,
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    cx_send_start,
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    cx_send
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};
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typedef struct {
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    irq_t irq;
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    cuda_t *cuda;
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    indev_t *kbrdin;
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    uint8_t rcv_buf[CUDA_RCV_BUF_SIZE];
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    uint8_t snd_buf[CUDA_RCV_BUF_SIZE];
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    size_t bidx;
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    size_t snd_bytes;
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    enum cuda_xfer_state xstate;
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    SPINLOCK_DECLARE(dev_lock);
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} cuda_instance_t;
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extern cuda_instance_t *cuda_init(cuda_t *, inr_t, cir_t, void *);
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extern void cuda_wire(cuda_instance_t *, indev_t *);
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#endif
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/** @}
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 */