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Annotation of coherent/d/286_KERNEL/USRSRC/286/ld.c, revision 1.1.1.1

1.1       root        1: /* $Header: /usr/src/sys/i8086/src/RCS/ld.c,v 1.1 88/03/24 17:39:36 src Exp $
                      2:  *
                      3:  *     The  information  contained herein  is a trade secret  of INETCO
                      4:  *     Systems, and is confidential information.   It is provided under
                      5:  *     a license agreement,  and may be copied or disclosed  only under
                      6:  *     the terms of that agreement.   Any reproduction or disclosure of
                      7:  *     this  material  without  the express  written  authorization  of
                      8:  *     INETCO Systems or persuant to the license agreement is unlawful.
                      9:  *
                     10:  *     Copyright (c) 1986
                     11:  *     An unpublished work by INETCO Systems, Ltd.
                     12:  *     All rights reserved.
                     13:  */
                     14: 
                     15: /*
                     16:  * Pseudo-Device Interface to Loadable Drivers.
                     17:  *
                     18:  * $Log:       /usr/src/sys/i8086/src/RCS/ld.c,v $
                     19:  * Revision 1.1        88/03/24  17:39:36      src
                     20:  * Initial revision
                     21:  * 
                     22:  * 87/12/08    Allan Cornish   /usr/src/sys/i8086/src/ld.c
                     23:  * Block device interface added to loadable drivers.
                     24:  *
                     25:  * 87/10/25    Allan Cornish           /usr/src/sys/i8086/drv/ld.c
                     26:  * Initial version.
                     27:  */
                     28: 
                     29: #include       <sys/coherent.h>
                     30: #include       <sys/fdisk.h>
                     31: #include       <sys/buf.h>
                     32: #include       <sys/con.h>
                     33: #include       <sys/stat.h>
                     34: #include       <sys/uproc.h>
                     35: #include       <errno.h>
                     36: 
                     37: /*
                     38:  * Driver configuration.
                     39:  */
                     40: void   ld_open();
                     41: void   ld_close();
                     42: void   ld_read();
                     43: void   ld_write();
                     44: void   ld_block();
                     45: int    ld_ioctl();
                     46: void   ld_power();
                     47: void   ld_time();
                     48: int    ld_poll();
                     49: void   nulldev();
                     50: void   nonedev();
                     51: 
                     52: /*
                     53:  * Loadable driver: Pseudeo-device configuration.
                     54:  */
                     55: CON ldrvpsy = {
                     56:        DFCHR|DFBLK|DFPOL,              /* Flags */
                     57:        0,                              /* Major index */
                     58:        ld_open,                        /* Open */
                     59:        ld_close,                       /* Close */
                     60:        ld_block,                       /* Block */
                     61:        ld_read,                        /* Read */
                     62:        ld_write,                       /* Write */
                     63:        ld_ioctl,                       /* Ioctl */
                     64:        ld_power,                       /* Powerfail */
                     65:        ld_time,                        /* Timeout */
                     66:        nulldev,                        /* Load */
                     67:        nulldev,                        /* Unload */
                     68:        ld_poll                         /* Poll */
                     69: };
                     70: 
                     71: /*
                     72:  * Loadable driver: Code selectors.
                     73:  */
                     74: saddr_t ldrvsel[NDRV];
                     75: 
                     76: /*
                     77:  * Loadable driver: Pointers to driver configuration table.
                     78:  */
                     79: CON * ldrvcon[NDRV];
                     80: 
                     81: /*
                     82:  * Loadable driver: Selector referencing interrupt handler's code segment.
                     83:  */
                     84: saddr_t ldrvics[16];
                     85: 
                     86: /*
                     87:  * Loadable driver: Pointers to interrupt handlers within the loadable driver.
                     88:  */
                     89: void (*ldrvipc[16])();

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