1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/* -*- c++ -*-
*
* (C) Copyright Pigeon Point Systems. 2011
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTWATCHDOGLITY or FITNESS FOR A PARTICULAR PURPOSE. This
* file and program are licensed under a BSD style license. See
* the Copying file included with the OpenHPI distribution for
* full licensing terms.
*
* Author(s):
* Anton Pak <anton.pak@pigeonpoint.com>
*/
#include <string>
#include "codec.h"
#include "handler.h"
#include "resource.h"
#include "structs.h"
#include "watchdog.h"
namespace TA {
/**************************************************************
* Helper functions
*************************************************************/
static SaHpiRdrTypeUnionT MakeDefaultWatchdogRec( SaHpiWatchdogNumT num )
{
SaHpiRdrTypeUnionT data;
SaHpiWatchdogRecT& rec = data.WatchdogRec;
rec.WatchdogNum = num;
rec.Oem = 0;
return data;
}
static SaHpiWatchdogT MakeDefaultWatchdog()
{
SaHpiWatchdogT wdt;
wdt.Log = SAHPI_TRUE;
wdt.Running = SAHPI_FALSE;
wdt.TimerUse = SAHPI_WTU_OEM;
wdt.TimerAction = SAHPI_WA_NO_ACTION;
wdt.PretimerInterrupt = SAHPI_WPI_OEM;
wdt.PreTimeoutInterval = 1000;
wdt.TimerUseExpFlags = 0;
wdt.InitialCount = 2000;
wdt.PresentCount = 0;
return wdt;
}
static SaHpiWatchdogExpFlagsT TimerUseToExpFlags( SaHpiWatchdogTimerUseT use )
{
switch ( use ) {
case SAHPI_WTU_NONE:
return 0;
case SAHPI_WTU_BIOS_FRB2:
return SAHPI_WATCHDOG_EXP_BIOS_FRB2;
case SAHPI_WTU_BIOS_POST:
return SAHPI_WATCHDOG_EXP_BIOS_POST;
case SAHPI_WTU_OS_LOAD:
return SAHPI_WATCHDOG_EXP_OS_LOAD;
case SAHPI_WTU_SMS_OS:
return SAHPI_WATCHDOG_EXP_SMS_OS;
case SAHPI_WTU_OEM:
return SAHPI_WATCHDOG_EXP_OEM;
case SAHPI_WTU_UNSPECIFIED:
return 0;
default:
return 0;
}
}
static SaHpiWatchdogActionEventT ActionEvent( SaHpiWatchdogActionT action )
{
switch ( action ) {
case SAHPI_WA_NO_ACTION:
return SAHPI_WAE_NO_ACTION;
case SAHPI_WA_RESET:
return SAHPI_WAE_RESET;
case SAHPI_WA_POWER_DOWN:
return SAHPI_WAE_POWER_DOWN;
case SAHPI_WA_POWER_CYCLE:
return SAHPI_WAE_POWER_CYCLE;
default:
return SAHPI_WAE_NO_ACTION;
}
}
/**************************************************************
* class cWatchdog
*************************************************************/
const std::string cWatchdog::classname( "wdt" );
cWatchdog::cWatchdog( cHandler& handler,
cResource& resource,
SaHpiWatchdogNumT num )
: cInstrument( handler,
resource,
AssembleNumberedObjectName( classname, num ),
SAHPI_WATCHDOG_RDR,
MakeDefaultWatchdogRec( num ) ),
m_rec( GetRdr().RdrTypeUnion.WatchdogRec ),
m_wdt( MakeDefaultWatchdog() )
{
// empty
}
cWatchdog::~cWatchdog()
{
m_handler.CancelTimer( this );
}
// HPI interface
SaErrorT cWatchdog::Get( SaHpiWatchdogT& wdt ) const
{
wdt = m_wdt;
return SA_OK;
}
SaErrorT cWatchdog::Set( const SaHpiWatchdogT& wdt )
{
if ( wdt.PreTimeoutInterval > wdt.InitialCount ) {
return SA_ERR_HPI_INVALID_DATA;
}
m_wdt.Log = wdt.Log;
m_wdt.TimerUse = wdt.TimerUse;
m_wdt.TimerAction = wdt.TimerAction;
m_wdt.PretimerInterrupt = wdt.PretimerInterrupt;
m_wdt.PreTimeoutInterval = wdt.PreTimeoutInterval;
m_wdt.TimerUseExpFlags &= ~wdt.TimerUseExpFlags;
m_wdt.InitialCount = wdt.InitialCount;
if ( wdt.Running == SAHPI_FALSE ) {
m_handler.CancelTimer( this );
m_wdt.Running = SAHPI_FALSE;
} else {
m_wdt.PresentCount = m_wdt.InitialCount;
}
return SA_OK;
}
SaErrorT cWatchdog::Reset()
{
if ( m_wdt.Running != SAHPI_FALSE ) {
if ( m_wdt.PretimerInterrupt != SAHPI_WPI_NONE ) {
if ( m_wdt.PresentCount < m_wdt.PreTimeoutInterval ) {
return SA_ERR_HPI_INVALID_REQUEST;
}
}
}
m_wdt.Running = SAHPI_TRUE;
m_wdt.PresentCount = m_wdt.InitialCount;
if ( m_wdt.InitialCount != 0 ) {
m_handler.SetTimer( this, 1000000LL ); // 1 ms tick
} else {
ProcessTick();
}
return SA_OK;
}
// cObject virtual functions
void cWatchdog::GetVars( cVars& vars )
{
cInstrument::GetVars( vars );
Structs::GetVars( m_wdt, vars );
}
// cTimerCallback virtual functions
void cWatchdog::TimerEvent()
{
if ( m_wdt.Running == SAHPI_FALSE ) {
return;
}
--m_wdt.PresentCount;
ProcessTick();
}
void cWatchdog::ProcessTick()
{
if ( m_wdt.PretimerInterrupt != SAHPI_WPI_NONE ) {
if ( m_wdt.PresentCount == m_wdt.PreTimeoutInterval ) {
// Pre-timer interrupt
PostEvent( SAHPI_WAE_TIMER_INT );
}
}
if ( m_wdt.PresentCount == 0 ) {
// Expired
m_wdt.TimerUseExpFlags |= TimerUseToExpFlags( m_wdt.TimerUse );
m_wdt.Running = SAHPI_FALSE;
PostEvent( ActionEvent( m_wdt.TimerAction ) );
}
// Schedule next tick
if ( m_wdt.Running != SAHPI_FALSE ) {
m_handler.SetTimer( this, 1000000LL ); // 1 ms tick
}
}
void cWatchdog::PostEvent( SaHpiWatchdogActionEventT ae )
{
if ( m_wdt.Log == SAHPI_FALSE ) {
return;
}
SaHpiEventUnionT data;
SaHpiWatchdogEventT& we = data.WatchdogEvent;
we.WatchdogNum = m_rec.WatchdogNum;
we.WatchdogAction = ae;
we.WatchdogPreTimerAction = m_wdt.PretimerInterrupt;
we.WatchdogUse = m_wdt.TimerUse;
cInstrument::PostEvent( SAHPI_ET_WATCHDOG, data, SAHPI_INFORMATIONAL );
}
}; // namespace TA
|
