source: rtems/c/src/lib/libbsp/m68k/mvme136/include/bsp.h @ 3a4ae6c

4.104.114.84.95
Last change on this file since 3a4ae6c was 3a4ae6c, checked in by Joel Sherrill <joel.sherrill@…>, on Sep 11, 1995 at 7:35:39 PM

The word "RTEMS" almost completely removed from the core.

Configuration Table Template file added and all tests
modified to use this. All gvar.h and conftbl.h files
removed from test directories.

Configuration parameter maximum_devices added.

Core semaphore and mutex handlers added and RTEMS API Semaphore
Manager updated to reflect this.

Initialization sequence changed to invoke API specific initialization
routines. Initialization tasks table now owned by RTEMS Tasks Manager.

Added user extension for post-switch.

Utilized user extensions to implement API specific functionality
like signal dispatching.

Added extensions to the System Initialization Thread so that an
API can register a function to be invoked while the system
is being initialized. These are largely equivalent to the
pre-driver and post-driver hooks.

Added the Modules file oar-go32_p5, modified oar-go32, and modified
the file make/custom/go32.cfg to look at an environment varable which
determines what CPU model is being used.

All BSPs updated to reflect named devices and clock driver's IOCTL
used by the Shared Memory Driver. Also merged clock isr into
main file and removed ckisr.c where possible.

Updated spsize to reflect new and moved variables.

Makefiles for the executive source and include files updated to show
break down of files into Core, RTEMS API, and Neither.

Header and inline files installed into subdirectory based on whether
logically in the Core or a part of the RTEMS API.

  • Property mode set to 100644
File size: 4.4 KB
Line 
1/*  bsp.h
2 *
3 *  This include file contains all MVME136 board IO definitions.
4 *
5 *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
6 *  On-Line Applications Research Corporation (OAR).
7 *  All rights assigned to U.S. Government, 1994.
8 *
9 *  This material may be reproduced by or for the U.S. Government pursuant
10 *  to the copyright license under the clause at DFARS 252.227-7013.  This
11 *  notice must appear in all copies of this file and its derivatives.
12 *
13 *  $Id$
14 */
15
16#ifndef __MVME136_h
17#define __MVME136_h
18
19#ifdef __cplusplus
20extern "C" {
21#endif
22
23#include <rtems.h>
24#include <clockdrv.h>
25#include <console.h>
26#include <iosupp.h>
27
28/*
29 *  Define the time limits for RTEMS Test Suite test durations.
30 *  Long test and short test duration limits are provided.  These
31 *  values are in seconds and need to be converted to ticks for the
32 *  application.
33 *
34 */
35
36#define MAX_LONG_TEST_DURATION       300 /* 5 minutes = 300 seconds */
37#define MAX_SHORT_TEST_DURATION      3   /* 3 seconds */
38
39/*
40 *  Define the interrupt mechanism for Time Test 27
41 *
42 *  NOTE: Use the MPCSR vector for the MVME136
43 */
44
45#define MUST_WAIT_FOR_INTERRUPT 0
46
47#define Install_tm27_vector( handler ) set_vector( (handler), 75, 1 )
48
49#define Cause_tm27_intr()  (*(volatile rtems_unsigned8 *)0xfffb006b) = 0x80
50
51#define Clear_tm27_intr()  (*(volatile rtems_unsigned8 *)0xfffb006b) = 0x00
52
53#define Lower_tm27_intr()
54
55/*
56 *  Simple spin delay in microsecond units for device drivers.
57 *  This is very dependent on the clock speed of the target.
58 */
59
60#define delay( microseconds ) \
61  { register rtems_unsigned32 _delay=(microseconds); \
62    register rtems_unsigned32 _tmp=123; \
63    asm volatile( "0: \
64                     nbcd      %0 ; \
65                     nbcd      %0 ; \
66                     dbf       %1,0b" \
67                  : "=d" (_tmp), "=d" (_delay) \
68                  : "0"  (_tmp), "1"  (_delay) ); \
69  }
70
71/* Constants */
72
73#define RAM_START 0
74#define RAM_END   0x100000
75
76#define M681ADDR      0xfffb0040         /* address of the M68681 chip */
77#define RXRDYB        0x01               /* status reg recv ready mask */
78#define TXRDYB        0x04               /* status reg trans ready mask */
79#define PARITYERR     0x20               /* status reg parity error mask */
80#define FRAMEERR      0x40               /* status reg frame error mask */
81
82
83#define FOREVER       1                  /* infinite loop */
84
85/* Structures */
86
87struct r_m681_info {
88  char fill1[ 5 ];                       /* channel A regs ( not used ) */
89  char isr;                              /* interrupt status reg */
90  char fill2[ 2 ];                       /* counter regs (not used) */
91  char mr1mr2b;                          /* MR1B and MR2B regs */
92  char srb;                              /* status reg channel B */
93  char fill3;                            /* do not access */
94  char rbb;                              /* receive buffer channel B */
95  char ivr;                              /* interrupt vector register */
96};
97
98struct w_m681_info {
99  char fill1[ 4 ];                       /* channel A regs (not used) */
100  char acr;                              /* auxillary control reg */
101  char imr;                              /* interrupt mask reg */
102  char fill2[ 2 ];                       /* counter regs (not used) */
103  char mr1mr2b;                          /* MR1B and MR2B regs */
104  char csrb;                             /* clock select reg */
105  char crb;                              /* command reg */
106  char tbb;                              /* transmit buffer channel B */
107  char ivr;                              /* interrupt vector register */
108};
109
110#ifdef M136_INIT
111#undef EXTERN
112#define EXTERN
113#else
114#undef EXTERN
115#define EXTERN extern
116#endif
117
118/* miscellaneous stuff assumed to exist */
119
120extern rtems_configuration_table BSP_Configuration;
121
122/* M68681 DUART chip register variables */
123
124EXTERN volatile struct r_m681_info *_Read_m681;  /* M68681 read registers */
125EXTERN volatile struct w_m681_info *_Write_m681; /* M68681 write registers */
126
127extern m68k_isr_entry M68Kvec[];   /* vector table address */
128
129/*
130 *  Device Driver Table Entries
131 */
132
133/*
134 * NOTE: Use the standard Console driver entry
135 */
136 
137/*
138 * NOTE: Use the standard Clock driver entry
139 */
140
141/*
142 * How many libio files we want
143 */
144
145#define BSP_LIBIO_MAX_FDS       20
146
147/* functions */
148
149void bsp_cleanup( void );
150
151m68k_isr_entry set_vector(
152  rtems_isr_entry     handler,
153  rtems_vector_number vector,
154  int                 type
155);
156
157#ifdef __cplusplus
158}
159#endif
160
161#endif
162/* end of include file */
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