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  1. /*
  2.  * Copyright (c) 2006 Martin Decky
  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.  */
  34.  
  35. #ifndef KERN_CUDA_H_
  36. #define KERN_CUDA_H_
  37.  
  38. #include <ddi/irq.h>
  39. #include <arch/types.h>
  40. #include <console/chardev.h>
  41. #include <synch/spinlock.h>
  42.  
  43. typedef struct {
  44.     uint8_t b;
  45.     uint8_t pad0[0x1ff];
  46.  
  47.     uint8_t a;
  48.     uint8_t pad1[0x1ff];
  49.  
  50.     uint8_t dirb;
  51.     uint8_t pad2[0x1ff];
  52.  
  53.     uint8_t dira;
  54.     uint8_t pad3[0x1ff];
  55.  
  56.     uint8_t t1cl;
  57.     uint8_t pad4[0x1ff];
  58.  
  59.     uint8_t t1ch;
  60.     uint8_t pad5[0x1ff];
  61.  
  62.     uint8_t t1ll;
  63.     uint8_t pad6[0x1ff];
  64.  
  65.     uint8_t t1lh;
  66.     uint8_t pad7[0x1ff];
  67.  
  68.     uint8_t t2cl;
  69.     uint8_t pad8[0x1ff];
  70.  
  71.     uint8_t t2ch;
  72.     uint8_t pad9[0x1ff];
  73.  
  74.     uint8_t sr;
  75.     uint8_t pad10[0x1ff];
  76.  
  77.     uint8_t acr;
  78.     uint8_t pad11[0x1ff];
  79.  
  80.     uint8_t pcr;
  81.     uint8_t pad12[0x1ff];
  82.  
  83.     uint8_t ifr;
  84.     uint8_t pad13[0x1ff];
  85.  
  86.     uint8_t ier;
  87.     uint8_t pad14[0x1ff];
  88.  
  89.     uint8_t anh;
  90.     uint8_t pad15[0x1ff];
  91. } cuda_t;
  92.  
  93. enum {
  94.     CUDA_RCV_BUF_SIZE = 5
  95. };
  96.  
  97. enum cuda_xfer_state {
  98.     cx_listen,
  99.     cx_receive,
  100.     cx_rcv_end,
  101.     cx_send_start,
  102.     cx_send
  103. };
  104.  
  105. typedef struct {
  106.     irq_t irq;
  107.     cuda_t *cuda;
  108.     indev_t *kbrdin;
  109.     uint8_t rcv_buf[CUDA_RCV_BUF_SIZE];
  110.     uint8_t snd_buf[CUDA_RCV_BUF_SIZE];
  111.     size_t bidx;
  112.     size_t snd_bytes;
  113.     enum cuda_xfer_state xstate;
  114.     SPINLOCK_DECLARE(dev_lock);
  115. } cuda_instance_t;
  116.  
  117. extern cuda_instance_t *cuda_init(cuda_t *, inr_t, cir_t, void *);
  118. extern void cuda_wire(cuda_instance_t *, indev_t *);
  119.  
  120. #endif
  121.  
  122. /** @}
  123.  */
  124.