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comparison packages/hal/sparc/leon/current/include/hal_diag.h @ 208:e0c0827131d1 ecos

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Merge from eCos master repository on 2002-05-20-20:11:54-BST
author jlarmour
date Mon, 20 May 2002 22:19:26 +0000
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children d2c90368aeef
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207:74c807ddde34 208:e0c0827131d1
1 #ifndef CYGONCE_HAL_HAL_DIAG_H
2 #define CYGONCE_HAL_HAL_DIAG_H
3
4 /*=============================================================================
5 //
6 // hal_diag.h
7 //
8 // HAL Support for Kernel Diagnostic Routines
9 //
10 //=============================================================================
11 //####ECOSGPLCOPYRIGHTBEGIN####
12 // -------------------------------------------
13 // This file is part of eCos, the Embedded Configurable Operating System.
14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
15 //
16 // eCos is free software; you can redistribute it and/or modify it under
17 // the terms of the GNU General Public License as published by the Free
18 // Software Foundation; either version 2 or (at your option) any later version.
19 //
20 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
21 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
22 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
23 // for more details.
24 //
25 // You should have received a copy of the GNU General Public License along
26 // with eCos; if not, write to the Free Software Foundation, Inc.,
27 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
28 //
29 // As a special exception, if other files instantiate templates or use macros
30 // or inline functions from this file, or you compile this file and link it
31 // with other works to produce a work based on this file, this file does not
32 // by itself cause the resulting work to be covered by the GNU General Public
33 // License. However the source code for this file must still be made available
34 // in accordance with section (3) of the GNU General Public License.
35 //
36 // This exception does not invalidate any other reasons why a work based on
37 // this file might be covered by the GNU General Public License.
38 //
39 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
40 // at http://sources.redhat.com/ecos/ecos-license
41 // -------------------------------------------
42 //####ECOSGPLCOPYRIGHTEND####
43 //=============================================================================
44 //#####DESCRIPTIONBEGIN####
45 //
46 // Author(s): hmt
47 // Contributors: hmt
48 // Date: 1999-01-11
49 // Purpose: HAL Support for Kernel Diagnostic Routines
50 // Description: Diagnostic routines for use during kernel development.
51 // Usage: #include <cyg/hal/hal_diag.h>
52 //
53 //####DESCRIPTIONEND####
54 //
55 //===========================================================================*/
56
57 #include <pkgconf/hal.h>
58
59 #include <cyg/infra/cyg_type.h>
60
61 /*---------------------------------------------------------------------------*/
62
63 #define CYG_DIAG_USE_LEON
64
65 /*---------------------------------------------------------------------------*/
66
67 #ifdef CYG_DIAG_USE_LEON
68
69 /*---------------------------------------------------------------------------*/
70 /* Register addresses */
71
72 #define SPARC_LEON_REG (0x80000000)
73
74 /* These must be accessed word-wide to work! */
75 #define SPARC_LEON_UART_IO( x ) ((cyg_uint32)(x))
76
77 #define SPARC_LEON_UART_A_RX ((volatile cyg_uint32 *)(SPARC_LEON_REG + 0x70))
78 #define SPARC_LEON_UART_A_TX ((volatile cyg_uint32 *)(SPARC_LEON_REG + 0x70))
79 #define SPARC_LEON_UART_STATUS ((volatile cyg_uint32 *)(SPARC_LEON_REG + 0x74))
80 #define SPARC_LEON_UART_RXAMASK (0x00001)
81 #define SPARC_LEON_UART_TXAMASK (0x00006)
82
83
84 /*---------------------------------------------------------------------------*/
85
86 #define HAL_DIAG_INIT()
87
88 #define HAL_DIAG_WRITE_CHAR(_c_) \
89 { \
90 if( 1 || _c_ != '\r' ) \
91 { \
92 while( (SPARC_LEON_UART_TXAMASK & *SPARC_LEON_UART_STATUS) == 0 ) \
93 continue; \
94 *SPARC_LEON_UART_A_TX = SPARC_LEON_UART_IO(_c_); \
95 } \
96 }
97
98 #define HAL_DIAG_READ_CHAR(_c_) \
99 { \
100 while( (SPARC_LEON_UART_RXAMASK & *SPARC_LEON_UART_STATUS) == 0 ) \
101 continue; \
102 _c_ = (char)*SPARC_LEON_UART_A_TX; \
103 }
104
105 #define XHAL_DIAG_WRITE_CHAR(_c_) \
106 { \
107 if( _c_ != '\r' ) \
108 { \
109 *SPARC_LEON_UART_A_TX = SPARC_LEON_UART_IO(_c_); \
110 } \
111 }
112
113 #define XHAL_DIAG_READ_CHAR(_c_) \
114 { \
115 _c_ = (char)*SPARC_LEON_UART_A_TX; \
116 }
117
118 #else
119 /*---------------------------------------------------------------------------*/
120 /* There is no diagnostic output on LEON processor */
121
122 #define HAL_DIAG_INIT()
123
124 #define HAL_DIAG_WRITE_CHAR(_c_)
125
126 #define HAL_DIAG_READ_CHAR(_c_) (_c_) = 0
127
128 #endif
129
130 /*---------------------------------------------------------------------------*/
131 /* end of hal_diag.h */
132 #endif /* CYGONCE_HAL_HAL_DIAG_H */