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
|
/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/ipmi/ipmiwatchdog.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2014,2016 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
#ifndef __IPMIWATCHDOG_IPMIWATCHDOG_C
#define __IPMIWATCHDOG_IPMIWATCHDOG_C
/**
* @file ipmiwatchdog.C
*
* Ipmi watchdog timer
*
*/
/******************************************************************************/
// Includes
/******************************************************************************/
#include <stdint.h>
#include <errl/errlentry.H>
#include <ipmi/ipmiwatchdog.H>
#include <ipmi/ipmiif.H>
#include <sys/time.h>
/******************************************************************************/
// Globals/Constants
/******************************************************************************/
// Defined in ipmidd.C
extern trace_desc_t * g_trac_ipmi;
#define IPMI_TRAC(printf_string,args...) \
TRACFCOMP(g_trac_ipmi,"wd: " printf_string,##args)
namespace IPMIWATCHDOG
{
/******************************************************************************/
// Functions
/******************************************************************************/
errlHndl_t setWatchDogTimer( const uint16_t i_countdown_secs,
const uint8_t i_timer_use,
const TIMER_ACTIONS i_timer_action,
const TIMER_USE_CLR_FLAGS i_timer_clr_flag)
{
// Convert secs into lsb and msb values
// the ipmi spec uses the count which is 100ms/count
static const uint16_t ms_per_count = 100;
static const uint8_t bits_to_shift_for_nxt_byte = 8;
static const uint8_t byte_mask = 0xFF;
uint16_t countdown = (i_countdown_secs * MS_PER_SEC)
/ ms_per_count;
uint8_t init_countdown_lsb = static_cast<uint8_t>
(countdown & byte_mask);
uint8_t init_countdown_msb = static_cast<uint8_t>(
(countdown >> bits_to_shift_for_nxt_byte)
& byte_mask);
size_t len = 6; // IPMI spec has request data at 6 bytes
//create request data buffer
uint8_t* data = new uint8_t[len];
data[0] = i_timer_use; // byte 1 timer use
data[1] = i_timer_action; // byte 2 timer actions
data[2] = 0x00; // byte 3 pre-interval timeout in secs
data[3] = i_timer_clr_flag; // byte 4 timer use flags to clear
data[4] = init_countdown_lsb; // byte 5 initial countdown timer LSByte
data[5] = init_countdown_msb; // byte 6 initial countdown timer MSByte
return IPMI::send(IPMI::set_watchdog(), len, data);
}
errlHndl_t resetWatchDogTimer()
{
errlHndl_t err_ipmi = NULL;
// reset command does not take any request data
size_t len = 0;
uint8_t* data = NULL;
do
{
// Don't worry about the return just send the msg over
// If there is an error during the reset
// we don't care about it since the watchdog will trip
//send ipmi command
err_ipmi = IPMI::send(IPMI::reset_watchdog(), len, data);
if(err_ipmi)
{
//got an error sending IPMI msg
//progate error upstream.
break;
}
}
while(0);
return err_ipmi;
}
} // namespace
#endif
|
