source: rtems/c/src/lib/libbsp/i386/i386ex/include/bsp.h @ 8529cf6

4.104.114.84.95
Last change on this file since 8529cf6 was 8529cf6, checked in by Ralf Corsepius <ralf.corsepius@…>, on Apr 1, 2004 at 10:09:10 AM

2004-04-01 Ralf Corsepius <ralf_corsepius@…>

  • network/network.c: Include <rtems/asm.h> instead of <asm.h>.
  • include/bsp.h: Include <rtems/clockdrv.h> instead of <clockdrv.h>.
  • include/bsp.h: Include <rtems/console.h> instead of <console.h>.
  • include/bsp.h: Include <rtems/iosupp.h> instead of <iosupp.h>.
  • Property mode set to 100644
File size: 3.2 KB
Line 
1/*
2 *  This include file definitions related to an Intel i386ex board.
3 *
4 *  COPYRIGHT (c) 1989-1999.
5 *  On-Line Applications Research Corporation (OAR).
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.rtems.com/license/LICENSE.
10 *
11 *  $Id$
12 */
13
14#ifndef __I386EX_BSP_h
15#define __I386EX_BSP_h
16
17#ifdef __cplusplus
18extern "C" {
19#endif
20
21#include <bspopts.h>
22
23#include <rtems.h>
24#include <rtems/iosupp.h>
25#include <rtems/console.h>
26#include <rtems/clockdrv.h>
27#include <rtems/bspIo.h>
28#include <libcpu/cpu.h>
29#include <irq.h>
30 
31/*
32 *  confdefs.h overrides for this BSP:
33 *   - number of termios serial ports (defaults to 1)
34 *   - Interrupt stack space is not minimum if defined.
35 */
36
37/* #define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 2 */
38#define CONFIGURE_INTERRUPT_STACK_MEMORY  (8 * 1024)
39
40/*
41 *  Define the time limits for RTEMS Test Suite test durations.
42 *  Long test and short test duration limits are provided.  These
43 *  values are in seconds and need to be converted to ticks for the
44 *  application.
45 *
46 */
47
48#define MAX_LONG_TEST_DURATION       300 /* 5 minutes = 300 seconds */
49#define MAX_SHORT_TEST_DURATION      3   /* 3 seconds */
50
51/*
52 *  Define the interrupt mechanism for Time Test 27
53 *
54 *  NOTE: Use a software interrupt for the i386.
55 */
56
57#define MUST_WAIT_FOR_INTERRUTPT 0
58
59
60#define Install_tm27_vector(handler) \
61{ \
62  rtems_isr_entry dummy; \
63  rtems_interrupt_catch(handler, 0x90, &dummy); \
64}
65#define Cause_tm27_intr()              asm volatile( "int $0x90" : : );
66
67#define Clear_tm27_intr()
68
69#define Lower_tm27_intr()
70
71/*
72 *  Simple spin delay in microsecond units for device drivers.
73 *  This is very dependent on the clock speed of the target.
74 */
75
76#define rtems_bsp_delay( _microseconds ) \
77  { \
78    uint32_t         _counter; \
79    \
80    _counter = (_microseconds); \
81    \
82    asm volatile ( "0: nop;" \
83                   " mov %0,%0 ;" \
84                   " loop 0b" : "=c" (_counter) \
85                              : "0"  (_counter) \
86                 ); \
87    \
88  }
89
90/* Constants */
91
92#define RAM_START 0
93
94/* replaced the earlier EI kludge of 0xfffff */
95
96#define RAM_END   0x100000
97
98/* I/O addressing */
99
100/*
101 *#define Is_tx_ready( _status ) ( (_status) & 0x20 )
102 */
103/* dec 20. try the TE instead of TBE as the check */
104
105#define Is_tx_ready( _status ) ( (_status) & 0x40 )
106
107
108#define Is_rx_ready( _status ) ( (_status) & 0x01 )
109
110/* Structures */
111
112#ifdef F386_INIT
113#undef BSP_EXTERN
114#define BSP_EXTERN
115#else
116#undef BSP_EXTERN
117#define BSP_EXTERN extern
118#endif
119
120/*
121 *  Device Driver Table Entries
122 */
123 
124/*
125 * NOTE: Use the standard Console driver entry
126 */
127 
128/*
129 * NOTE: Use the standard Clock driver entry
130 */
131 
132/* miscellaneous stuff assumed to exist */
133
134extern rtems_configuration_table BSP_Configuration;
135
136#define IDT_SIZE 256
137#define GDT_SIZE 8192
138
139extern interrupt_gate_descriptor Interrupt_descriptor_table[IDT_SIZE];
140extern segment_descriptors Global_descriptor_table   [GDT_SIZE];
141
142BSP_EXTERN unsigned short Idt[3];  /* Interrupt Descriptor Table Address */
143BSP_EXTERN unsigned short Gdt[3];  /* Global Descriptor Table Address */
144BSP_EXTERN unsigned int   Idt_base;
145BSP_EXTERN unsigned int   Gdt_base;
146
147/* routines */
148
149#ifdef __cplusplus
150}
151#endif
152
153#endif
154/* end of include file */
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