source: rtems/c/src/lib/libbsp/sh/gensh1/include/bsp.h @ 4a238002

4.104.114.84.95
Last change on this file since 4a238002 was 4a238002, checked in by Joel Sherrill <joel.sherrill@…>, on Nov 18, 1999 at 9:22:58 PM

Patch from "John M. Mills" <jmills@…> with subsequent cleanup from
Ralf Corsepius <corsepiu@…> that adds initial Hitachi SH-2
support to RTEMS. Ralf's comments are:

Changes:
------

  1. SH-Port:
  • Many files renamed.
  • CONSOLE_DEVNAME and MHZ defines removed from libcpu.
  • console.c moved to libbsp/sh/shared, build in libbsp/sh/<BSP>/console applying VPATH.
  • CONSOLE_DEVNAME made BSP-specific, replacement is defined in bsp.h
  • MHZ define replaced with HZ (extendent resolution) in custom/*.cfg
  • -DHZ=HZ used in bspstart.c, only
  • Makefile variable HZ used in bsp-dependent directories only.
  1. SH1-Port
  • clock-driver rewritten to provide better resolution for odd CPU frequencies. This driver is only partially tested on hardware, ie. sightly experimental, but I don't expect severe problems with it.
  • Polling SCI-driver added. This driver is experimental and completly untested yet. Therefore it is not yet used for the console (/dev/console is still pointing to /dev/null, cf. gensh1/bsp.h).
  • minor changes to the timer driver
  • SH1 specific delay()/CPU_delay() now is implemented as a function
  1. SH2-Port
  • Merged
  • IMO, the code is still in its infancy. Therefore I have interspersed comments (FIXME) it for items which I think John should look after.
  • sci and console drivers partially rewritten and extended (John, I hope you don't mind).
  • Copyright notices are not yet adapted
  • Property mode set to 100644
File size: 2.9 KB
Line 
1/*
2 *  This include file contains all board IO definitions.
3 *
4 *  generic sh1
5 *
6 *  Author: Ralf Corsepius (corsepiu@faw.uni-ulm.de)
7 *
8 *  COPYRIGHT (c) 1997-1998, FAW Ulm, Germany
9 *
10 *  This program is distributed in the hope that it will be useful,
11 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 *
14 *
15 *  COPYRIGHT (c) 1998.
16 *  On-Line Applications Research Corporation (OAR).
17 *  Copyright assigned to U.S. Government, 1994.
18 *
19 *  The license and distribution terms for this file may be
20 *  found in the file LICENSE in this distribution or at
21 *  http://www.OARcorp.com/rtems/license.html.
22 *
23 *  $Id$
24 */
25
26#ifndef __gensh1_h
27#define __gensh1_h
28
29#ifdef __cplusplus
30extern "C" {
31#endif
32
33#include <rtems.h>
34#include <clockdrv.h>
35#include <console.h>
36
37/* EDIT: To activate the sci driver, change the define below */
38#if 1
39#include <sh/null.h>
40#define BSP_CONSOLE_DEVNAME "/dev/null"
41#define BSP_CONSOLE_DRIVER_TABLE_ENTRY DEVNULL_DRIVER_TABLE_ENTRY
42#else
43#include <sh/sci.h>
44#define BSP_CONSOLE_DEVNAME "/dev/sci0"
45#define BSP_CONSOLE_DRIVER_TABLE_ENTRY DEVSCI_DRIVER_TABLE_ENTRY
46#endif
47
48
49/*
50 *  Define the time limits for RTEMS Test Suite test durations.
51 *  Long test and short test duration limits are provided.  These
52 *  values are in seconds and need to be converted to ticks for the
53 *  application.
54 *
55 */
56
57#define MAX_LONG_TEST_DURATION       300 /* 5 minutes = 300 seconds */
58#define MAX_SHORT_TEST_DURATION      3   /* 3 seconds */
59
60/*
61 *  Stuff for Time Test 27
62 */
63
64#define MUST_WAIT_FOR_INTERRUPT 0
65
66#define Install_tm27_vector( handler ) \
67{ \
68  rtems_isr_entry ignored ; \
69  rtems_interrupt_catch( (handler), 0, &ignored ) ; \
70}
71
72#define Cause_tm27_intr()
73
74#define Clear_tm27_intr()
75
76#define Lower_tm27_intr()
77
78/* Constants */
79
80/*
81 *  Simple spin delay in microsecond units for device drivers.
82 *  This is very dependent on the clock speed of the target.
83 */
84
85#define delay( microseconds ) CPU_delay(microseconds)
86#define sh_delay( microseconds ) CPU_delay(microseconds)
87
88/*
89 * Defined in the linker script 'linkcmds'
90 */
91
92extern unsigned32       HeapStart ;
93extern unsigned32       HeapEnd ;
94extern unsigned32       WorkSpaceStart ;
95extern unsigned32       WorkSpaceEnd ;
96
97extern void *CPU_Interrupt_stack_low ;
98extern void *CPU_Interrupt_stack_high ;
99
100 
101/* miscellaneous stuff assumed to exist */
102
103extern rtems_configuration_table BSP_Configuration;
104
105extern void bsp_cleanup( void );
106
107/*
108 *  Device Driver Table Entries
109 */
110
111/*
112 * We redefine CONSOLE_DRIVER_TABLE_ENTRY to redirect /dev/console
113 */
114#undef CONSOLE_DRIVER_TABLE_ENTRY
115#define CONSOLE_DRIVER_TABLE_ENTRY \
116  BSP_CONSOLE_DRIVER_TABLE_ENTRY, \
117  { console_initialize, console_open, console_close, \
118      console_read, console_write, console_control }
119 
120/*
121 * NOTE: Use the standard Clock driver entry
122 */
123
124#ifdef __cplusplus
125}
126#endif
127
128#endif
129/* end of include file */
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