source: rtems/c/src/lib/libbsp/i386/pc386/include/bsp.h @ 96efaf67

Last change on this file since 96efaf67 was 96efaf67, checked in by Joel Sherrill <joel.sherrill@…>, on 05/28/00 at 17:45:17

Renamed delay() to avoid conflicts since it is a common name that
was in particular used by the ttcp test.

  • Property mode set to 100644
File size: 8.4 KB
Line 
1/*-------------------------------------------------------------------------+
2| bsp.h v1.1 - PC386 BSP - 1997/08/07
3+--------------------------------------------------------------------------+
4| This include file contains definitions related to the PC386 BSP.
5+--------------------------------------------------------------------------+
6| (C) Copyright 1997 -
7| - NavIST Group - Real-Time Distributed Systems and Industrial Automation
8|
9| http://pandora.ist.utl.pt
10|
11| Instituto Superior Tecnico * Lisboa * PORTUGAL
12+--------------------------------------------------------------------------+
13| Modified by Eric Valette the 20/05/98 in order to add definitions used
14| to enhance video putchar capabilities.
15|
16| Copyright (C) 1998  valette@crf.canon.fr
17|
18| Canon Centre Recherche France.
19|
20+--------------------------------------------------------------------------+
21| Disclaimer:
22|
23| This file is provided "AS IS" without warranty of any kind, either
24| expressed or implied.
25+--------------------------------------------------------------------------+
26| This code is based on:
27|   bsp.h,v 1.5 1995/12/19 20:07:30 joel Exp - go32 BSP
28| With the following copyright notice:
29| **************************************************************************
30| *  COPYRIGHT (c) 1989-1999.
31| *  On-Line Applications Research Corporation (OAR).
32| *
33| *  The license and distribution terms for this file may be
34| *  found in found in the file LICENSE in this distribution or at
35| *  http://www.OARcorp.com/rtems/license.html.
36| **************************************************************************
37|
38|  $Id$
39+--------------------------------------------------------------------------*/
40
41
42#ifndef __BSP_H_
43#define __BSP_H_
44
45#ifdef __cplusplus
46extern "C" {
47#endif
48
49#include <rtems.h>
50#include <iosupp.h>
51#include <console.h>
52#include <clockdrv.h>
53#include <libcpu/cpu.h>
54#include <bspIo.h>
55 
56/*
57 *  confdefs.h overrides for this BSP:
58 *   - number of termios serial ports
59 *   - Interrupt stack space is not minimum if defined.
60 */
61
62#define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 1
63#define CONFIGURE_INTERRUPT_STACK_MEMORY  (4 * 1024)
64
65/*
66 * Network driver configuration
67 */
68
69struct rtems_bsdnet_ifconfig;
70extern int rtems_wd_driver_attach (struct rtems_bsdnet_ifconfig *config);
71extern int rtems_dec21140_driver_attach (struct rtems_bsdnet_ifconfig *config);
72
73#if 0
74#define RTEMS_BSP_NETWORK_DRIVER_NAME "wd1"
75#define RTEMS_BSP_NETWORK_DRIVER_ATTACH       rtems_wd_driver_attach
76#endif
77
78#if 1
79#define RTEMS_BSP_NETWORK_DRIVER_NAME "dc1"
80#define RTEMS_BSP_NETWORK_DRIVER_ATTACH       rtems_dec21140_driver_attach
81#endif
82
83
84/*-------------------------------------------------------------------------+
85| Constants
86+--------------------------------------------------------------------------*/
87#define BSP_LIBIO_MAX_FDS 20             /* Number of libio files we want.    */
88
89/*-------------------------------------------------------------------------+
90| Video (console) related constants.
91+--------------------------------------------------------------------------*/
92
93#include <crt.h> 
94 
95/*-------------------------------------------------------------------------+
96| Constants relating to the 8254 (or 8253) programmable interval timers.
97+--------------------------------------------------------------------------*/
98#define IO_TIMER1      0x40
99                  /* Port address of the control port and timer channels */
100#define TIMER_CNTR0    (IO_TIMER1 + 0) /* timer 0 counter port           */
101#define TIMER_CNTR1    (IO_TIMER1 + 1) /* timer 1 counter port           */
102#define TIMER_CNTR2    (IO_TIMER1 + 2) /* timer 2 counter port           */
103#define TIMER_MODE     (IO_TIMER1 + 3) /* timer mode port                */
104#define TIMER_SEL0     0x00            /* select counter 0               */
105#define TIMER_SEL1     0x40            /* select counter 1               */
106#define TIMER_SEL2     0x80            /* select counter 2               */
107#define TIMER_INTTC    0x00            /* mode 0, intr on terminal cnt   */
108#define TIMER_ONESHOT  0x02            /* mode 1, one shot               */
109#define TIMER_RATEGEN  0x04            /* mode 2, rate generator         */
110#define TIMER_SQWAVE   0x06            /* mode 3, square wave            */
111#define TIMER_SWSTROBE 0x08            /* mode 4, s/w triggered strobe   */
112#define TIMER_HWSTROBE 0x0a            /* mode 5, h/w triggered strobe   */
113#define TIMER_LATCH    0x00            /* latch counter for reading      */
114#define TIMER_LSB      0x10            /* r/w counter LSB                */
115#define TIMER_MSB      0x20            /* r/w counter MSB                */
116#define TIMER_16BIT    0x30            /* r/w counter 16 bits, LSB first */
117#define TIMER_BCD      0x01            /* count in BCD                   */
118
119#define TIMER_TICK     1193182  /* The internal tick rate in ticks per second */
120
121/*-------------------------------------------------------------------------+
122| Define the time limits for RTEMS Test Suite test durations. Long test and
123| short test duration limits are provided. These values are in seconds and
124| need to be converted to ticks for the application.
125+--------------------------------------------------------------------------*/
126#define MAX_LONG_TEST_DURATION       300  /* 5 minutes = 300 seconds */
127#define MAX_SHORT_TEST_DURATION      3    /* 3 seconds */
128
129/*-------------------------------------------------------------------------+
130| Macros
131+--------------------------------------------------------------------------*/
132/*-------------------------------------------------------------------------+
133| Define the interrupt mechanism for Time Test 27.
134| NOTE: Use a software interrupt for the i386 family.
135+--------------------------------------------------------------------------*/
136#define MUST_WAIT_FOR_INTERRUPT 0
137#define Install_tm27_vector(handler) \
138{ \
139  rtems_isr_entry dummy; \
140  rtems_interrupt_catch(handler, 0x90, &dummy); \
141}
142#define Cause_tm27_intr() asm volatile("int $0x90" : :);
143#define Clear_tm27_intr()
144#define Lower_tm27_intr()
145
146/* does anyone need this? if so, report it so we can rename this macro */
147#if 0
148/*-------------------------------------------------------------------------+
149| Simple spin delay in microsecond units for device drivers.
150| This is very dependent on the clock speed of the target.
151+--------------------------------------------------------------------------*/
152#define delay(_microseconds) \
153{ \
154  rtems_unsigned32 _cnt = _microseconds; \
155  asm volatile ("0: nop; mov %0,%0; loop 0b" : "=c"(_cnt) : "0"(_cnt)); \
156}
157#endif
158
159/*-------------------------------------------------------------------------+
160| Convert microseconds to ticks and ticks to microseconds.
161+--------------------------------------------------------------------------*/
162#define US_TO_TICK(us) (((us)*105+44)/88)
163#define TICK_TO_US(tk) (((tk)*88+52)/105)
164
165/*-------------------------------------------------------------------------+
166| External Variables.
167+--------------------------------------------------------------------------*/
168#define IDT_SIZE 256
169#define GDT_SIZE 3
170
171extern interrupt_gate_descriptor Interrupt_descriptor_table[IDT_SIZE];
172extern segment_descriptors Global_descriptor_table   [GDT_SIZE];
173 
174extern rtems_configuration_table BSP_Configuration;
175                                    /* User provided BSP configuration table. */
176extern rtems_unsigned32          rtemsFreeMemStart;
177  /* Address of start of free memory - should be used when creating new
178     partitions or regions and updated afterwards. */
179
180/*-------------------------------------------------------------------------+
181| Function Prototypes.
182+--------------------------------------------------------------------------*/
183void          _IBMPC_initVideo(void);    /* from 'outch.c'  */
184void          _IBMPC_outch    (char);    /* from 'outch.c'  */
185rtems_boolean _IBMPC_chrdy    (char *);  /* from 'inch.c'   */
186char          _IBMPC_inch     (void);    /* from 'inch.c'   */
187char          _IBMPC_inch_sleep (void);  /* from 'inch.c'   */
188
189void printk(char *fmt, ...);             /* from 'printk.c' */
190
191void rtemsReboot(void);                  /* from 'exit.c'   */
192
193void Wait_X_ms(unsigned int timeToWait); /* from 'timer.c'  */
194
195
196/* Definitions for BSPConsolePort */
197#define BSP_CONSOLE_PORT_CONSOLE (-1)
198#define BSP_CONSOLE_PORT_COM1    (BSP_UART_COM1)
199#define BSP_CONSOLE_PORT_COM2    (BSP_UART_COM2)
200
201/* GDB stub stuff */
202void i386_stub_glue_init(int uart);
203void i386_stub_glue_init_breakin(void);
204void set_debug_traps(void);
205void breakpoint(void);
206
207#ifdef __cplusplus
208}
209#endif
210
211#endif /* __BSP_H_ */
212/* end of include file */
213
214
215
216
217
218
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