source: rtems/c/src/lib/libbsp/i386/force386/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: 4.5 KB
Line 
1/*  bsp.h
2 *
3 *  This include file definitions related to the Force CPU-386 board.
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 __FORCE386_h
17#define __FORCE386_h
18
19#ifdef __cplusplus
20extern "C" {
21#endif
22
23#include <rtems.h>
24#include <iosupp.h>
25#include <console.h>
26#include <clockdrv.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 a software interrupt for the i386.
43 */
44
45#define MUST_WAIT_FOR_INTERRUPT 0
46
47#define Install_tm27_vector( handler ) set_vector( (handler), 0x90, 1 )
48
49#define Cause_tm27_intr()              asm volatile( "int $0x90" : : );
50
51#define Clear_tm27_intr()
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  { \
62    rtems_unsigned32 _counter; \
63    \
64    _counter = (_microseconds); \
65    \
66    asm volatile ( "0: nop;" \
67                   " mov %0,%0 ;" \
68                   " loop 0b" : "=c" (_counter) \
69                              : "0"  (_counter) \
70                 ); \
71    \
72  }
73
74/* Constants */
75
76#define RAM_START 0
77#define RAM_END   0x100000
78
79/* I/O addressing */
80
81/*
82 *  The following determines whether Port B or the Console should
83 *  be used for test I/O.  Setting ONE (and only ONE) of these to 1
84 *  enables I/O on that port.
85 *
86 *  PORT A - DUSCC MC68562 Channel A
87 *  PORT B - DUSCC MC68562 Channel B
88 *  PORT C - MFP MC68901 Channel      (*** FORCEbug console ***)
89 */
90
91#define PORTB         1               /* use port b as test port */
92#define PORTC         0               /* use console port as test port */
93
94#if ( PORTB == 1 )
95#define TX_STATUS     0x1b6           /* DUSCC General Status Register */
96#define RX_STATUS     0x1b6           /* DUSCC General Status Register */
97#define TX_BUFFER     0x1e0           /* DUSCC Transmitter Channel B */
98#define RX_BUFFER     0x1e8           /* DUSCC Receiver Channel B */
99#define Is_tx_ready( _status ) ( (_status) & 0x20 )
100#define Is_rx_ready( _status ) ( (_status) & 0x10 )
101#endif
102
103#if ( PORTC == 1 )
104#define TX_STATUS     0x12c           /* MFP Transmit Status Register */
105#define RX_STATUS     0x12a           /* MFP Receive Status Register */
106#define TX_BUFFER     0x12e           /* MFP Transmitter Channel  */
107#define RX_BUFFER     0x12e           /* MFP Receiver Channel  */
108#define Is_tx_ready( _status ) ( (_status) & 0x80 )
109#define Is_rx_ready( _status ) ( (_status) & 0x80 )
110#endif
111
112/* Timer constants */
113
114#define IERA   0x106     /* Interrupt Enable Register A */
115#define IMRA   0x112     /* Interrupt Mask Register A */
116#define TACR   0x118     /* Timer A Control Register */
117#define TADR   0x11e     /* Timer A Data Register */
118
119#define IERB   0x108     /* Interrupt Enable Register B */
120#define TBCR   0x11a     /* Timer B Control Register */
121#define TBDR   0x120     /* Timer B Data Register */
122
123/* Structures */
124
125#ifdef F386_INIT
126#undef BSP_EXTERN
127#define BSP_EXTERN
128#else
129#undef BSP_EXTERN
130#define BSP_EXTERN extern
131#endif
132
133/*
134 *  Device Driver Table Entries
135 */
136
137/*
138 * NOTE: Use the standard Console driver entry
139 */
140 
141/*
142 * NOTE: Use the standard Clock driver entry
143 */
144
145/*
146 * How many libio files we want
147 */
148
149#define BSP_LIBIO_MAX_FDS       20
150
151/* miscellaneous stuff assumed to exist */
152
153extern rtems_configuration_table BSP_Configuration;
154
155extern i386_IDT_slot Interrupt_descriptor_table[ 256 ];
156extern i386_GDT_slot Global_descriptor_table[ 8192 ];
157
158BSP_EXTERN unsigned short Idt[3];  /* Interrupt Descriptor Table Address */
159BSP_EXTERN unsigned short Gdt[3];  /* Global Descriptor Table Address */
160BSP_EXTERN unsigned int   Idt_base;
161BSP_EXTERN unsigned int   Gdt_base;
162
163/* routines */
164
165i386_isr_entry set_vector(
166  rtems_isr_entry     handler,
167  rtems_vector_number vector,
168  int                 type
169);
170
171#ifdef __cplusplus
172}
173#endif
174
175#endif
176/* end of include file */
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