source: rtems/bsps/powerpc/include/libcpu/raw_exception.h @ abc2164

5
Last change on this file since abc2164 was abc2164, checked in by Sebastian Huber <sebastian.huber@…>, on Feb 7, 2018 at 8:23:49 AM

bsps/powerpc: Fix redefinitions

  • Property mode set to 100644
File size: 4.5 KB
Line 
1/*
2 * raw_execption.h
3 *
4 *          This file contains implementation of C function to
5 *          Instantiate mpc5xx primary exception entries.
6 *          More detailled information can be found on the Motorola
7 *          site and more precisely in the following book:
8 *
9 *              MPC555/MPC556 User's Manual
10 *              Motorola REF : MPC555UM/D Rev. 3, 2000 October 15
11 *
12 *
13 *  MPC5xx port sponsored by Defence Research and Development Canada - Suffield
14 *  Copyright (C) 2004, Real-Time Systems Inc. (querbach@realtime.bc.ca)
15 *
16 *  Derived from libcpu/powerpc/mpc8xx/exceptions/raw_exception.h:
17 *
18 *  Copyright (C) 1999  Eric Valette (valette@crf.canon.fr)
19 *                     Canon Centre Recherche France.
20 *
21 *  The license and distribution terms for this file may be
22 *  found in the file LICENSE in this distribution or at
23 *  http://www.rtems.org/license/LICENSE.
24 */
25
26#ifndef _LIBCPU_RAW_EXCEPTION_H
27#define _LIBCPU_RAW_EXCEPTION_H
28
29#include <libcpu/vectors.h>
30
31/*
32 * Exception Vectors as defined in the MPC555 User's Manual
33 */
34
35#define ASM_RESET_VECTOR        0x01
36#define ASM_MACH_VECTOR         0x02
37
38#define ASM_EXT_VECTOR          0x05
39#define ASM_ALIGN_VECTOR        0x06
40#define ASM_PROG_VECTOR         0x07
41#define ASM_FLOAT_VECTOR        0x08
42#define ASM_DEC_VECTOR          0x09
43
44#define ASM_SYS_VECTOR          0x0C
45#define ASM_TRACE_VECTOR        0x0D
46#define ASM_FLOATASSIST_VECTOR  0x0E
47
48#define ASM_SOFTEMUL_VECTOR     0x10
49
50#define ASM_IPROT_VECTOR        0x13
51#define ASM_DPROT_VECTOR        0x14
52
53#define ASM_DBREAK_VECTOR       0x1C
54#define ASM_IBREAK_VECTOR       0x1D
55#define ASM_MEBREAK_VECTOR      0x1E
56#define ASM_NMEBREAK_VECTOR     0x1F
57
58#ifndef ASM
59
60/*
61 * Type definition for raw exceptions.
62 */
63
64typedef unsigned char  rtems_vector;
65struct  __rtems_raw_except_connect_data__;
66typedef unsigned char   rtems_raw_except_hdl_size;
67
68typedef struct {
69  rtems_vector                  vector;
70  rtems_exception_handler_t*    raw_hdl;
71}rtems_raw_except_hdl;
72
73typedef void (*rtems_raw_except_enable)         (const struct __rtems_raw_except_connect_data__*);
74typedef void (*rtems_raw_except_disable)        (const struct __rtems_raw_except_connect_data__*);
75typedef int  (*rtems_raw_except_is_enabled)     (const struct __rtems_raw_except_connect_data__*);
76
77typedef struct __rtems_raw_except_connect_data__{
78 /*
79  * Exception vector (As defined in the manual)
80  */
81  rtems_vector                  exceptIndex;
82  /*
83   * Exception raw handler. See comment on handler properties below in function prototype.
84   */
85  rtems_raw_except_hdl          hdl;
86  /*
87   * function for enabling raw exceptions. In order to be consistent
88   * with the fact that the raw connexion can defined in the
89   * libcpu library, this library should have no knowledge of
90   * board specific hardware to manage exceptions and thus the
91   * "on" routine must enable the except at processor level only.
92   *
93   */
94    rtems_raw_except_enable     on;
95  /*
96   * function for disabling raw exceptions. In order to be consistent
97   * with the fact that the raw connexion can defined in the
98   * libcpu library, this library should have no knowledge of
99   * board specific hardware to manage exceptions and thus the
100   * "on" routine must disable the except both at device and PIC level.
101   *
102   */
103  rtems_raw_except_disable      off;
104  /*
105   * function enabling to know what exception may currently occur
106   */
107  rtems_raw_except_is_enabled   isOn;
108}rtems_raw_except_connect_data;
109
110typedef struct {
111  /*
112   * size of all the table fields (*Tbl) described below.
113   */
114  unsigned int                          exceptSize;
115  /*
116   * Default handler used when disconnecting exceptions.
117   */
118  rtems_raw_except_connect_data         defaultRawEntry;
119  /*
120   * Table containing initials/current value.
121   */
122  rtems_raw_except_connect_data*        rawExceptHdlTbl;
123}rtems_raw_except_global_settings;
124
125/*
126 * C callable function enabling to set up one raw idt entry
127 */
128extern int mpc5xx_set_exception (const rtems_raw_except_connect_data*);
129
130/*
131 * C callable function enabling to get one current raw idt entry
132 */
133extern int mpc5xx_get_current_exception (rtems_raw_except_connect_data*);
134
135/*
136 * C callable function enabling to remove one current raw idt entry
137 */
138extern int mpc5xx_delete_exception (const rtems_raw_except_connect_data*);
139
140/*
141 * C callable function enabling to check if vector is valid
142 */
143extern int mpc5xx_vector_is_valid(rtems_vector vector);
144
145inline static  void* mpc5xx_get_vector_addr(rtems_vector vector)
146{
147  return ((void*)  (((unsigned) vector) << 8));
148}
149/*
150 * Exception global init.
151 */
152extern int mpc5xx_init_exceptions (rtems_raw_except_global_settings* config);
153extern int mpc5xx_get_exception_config (rtems_raw_except_global_settings** config);
154
155# endif /* ASM */
156
157#define SIZEOF_
158
159#endif
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