Annotation of 43BSDReno/sys/tahoevba/ikreg.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1986 The Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution is only permitted until one year after the first shipment
                      6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
                      7:  * binary forms are permitted provided that: (1) source distributions retain
                      8:  * this entire copyright notice and comment, and (2) distributions including
                      9:  * binaries display the following acknowledgement:  This product includes
                     10:  * software developed by the University of California, Berkeley and its
                     11:  * contributors'' in the documentation or other materials provided with the
                     12:  * distribution and in all advertising materials mentioning features or use
                     13:  * of this software.  Neither the name of the University nor the names of
                     14:  * its contributors may be used to endorse or promote products derived from
                     15:  * this software without specific prior written permission.
                     16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     19:  *
                     20:  *     @(#)ikreg.h     7.3 (Berkeley) 6/28/90
                     21:  */
                     22: 
                     23: /*
                     24:  * IKON DR-11W register definitions.
                     25:  */
                     26: struct ikdevice {
                     27:        u_short ik_csr;         /* control status register */
                     28:        u_short ik_data;        /* data in/out register */
                     29:        u_char  ik_mod;         /* address modifier */
                     30:        u_char  ik_vec;         /* interrupt vector */
                     31:        u_short ik_pulse;       /* pulse commands (w) */
                     32:        u_short ik_fill[5];
                     33:        u_short ik_balo;        /* low word of dma beginning address (w) */
                     34:        u_short ik_wc;          /* dma word count */
                     35:        u_short ik_calo;        /* low word of dma current address (r) */
                     36:        u_short ik_fill1;
                     37:        u_short ik_bahi;        /* high word of dma beginning address (w) */
                     38:        u_short ik_fill2;
                     39:        u_short ik_cahi;        /* high word of dma current address (r) */
                     40: };
                     41: 
                     42: /*
                     43:  * CSR control definitions (write-only).
                     44:  */
                     45: #define IKCSR_GO       0x0001          /* start dma */
                     46: #define IKCSR_FNC1     0x0002          /* function bit 1 */
                     47: #define IKCSR_FNC2     0x0004          /* function bit 2 */
                     48: #define IKCSR_FNC3     0x0008          /* function bit 3 */
                     49: /* bits 4-5 are unused */
                     50: #define IKCSR_IENA     0x0040          /* enable/disable interrupts */
                     51: /* bit 7 is unused */
                     52: #define IKCSR_CYCLE    0x0100          /* force dma to cycle */
                     53: /* bits 9-11 are unused */
                     54: #define IKCSR_MCLR     0x1000          /* master clear board */
                     55: #define IKCSR_RPERR    0x2000          /* reset parity error */
                     56: #define IKCSR_RATTF    0x4000          /* reset attention */
                     57: #define IKCSR_RDMAF    0x8000          /* reset dma completion */
                     58: 
                     59: /*
                     60:  * CSR status definitions (read-only).
                     61:  */
                     62: #define IKCSR_DEV      0x0001          /* device flag (0 = 10083, 1 = 10077) */
                     63: /* bits 1-3 reflect the function latch state */
                     64: #define IKCSR_TIMO     0x0010          /* bus timeout during dma */
                     65: #define IKCSR_BERR     0x0020          /* bus error during dma */
                     66: /* bit 6 reflects interrupt enable state */
                     67: #define IKCSR_READY    0x0080          /* device ready for next command */
                     68: /* bit 8 should be 0 */
                     69: #define IKCSR_STATC    0x0200          /* status bit C */
                     70: #define IKCSR_STATB    0x0400          /* status bit B */
                     71: #define IKCSR_STATA    0x0800          /* status bit A */
                     72: #define IKCSR_PERR     0x1000          /* parity error during pi/o or dma */
                     73: #define IKCSR_ATTN     0x2000          /* current state of attention bit */
                     74: #define IKCSR_ATTF     0x4000          /* latched attention t-f transition */
                     75: #define IKCSR_DMAF     0x8000          /* dma completed or terminated */
                     76: 
                     77: #define IKCSR_BITS \
                     78: "\020\1DEV\2FNC1\3FNC2\4FNC3\5TIMO\6BERR\7IENA\10READY\12STATC\13STATB\14STATA\
                     79: \15PERR\16ATTN\17ATTF\20DMAF"
                     80: 
                     81: /*
                     82:  * Pulse command register definitions (write-only).
                     83:  */
                     84: #define IKPULSE_GO     0x0001          /* enable dma */
                     85: #define IKPULSE_FNC2   0x0004          /* pulse function bit 1 */
                     86: #define IKPULSE_RIENA  0x0020          /* reset IKCSR_IENA */
                     87: #define IKPULSE_SIENA  0x0040          /* set IKCSR_IENA */
                     88: #define IKPULSE_CYCL   0x0100          /* force dma to cycle */
                     89: #define IKPULSE_MCLR   0x1000          /* initialize interface */
                     90: #define IKPULSE_RPERR  0x2000          /* reset IKCSR_PERR */
                     91: #define IKPULSE_RATTF  0x4000          /* reset IKCSR_ATTF */
                     92: #define IKPULSE_RDMAF  0x8000          /* reset IKCSR_DMAF */

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