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
|
/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/sbeio/sbe_scomAccessdd.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2012,2016 */
/* [+] 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 */
/**
* @file sbe_scomAccess.C
* @brief SCOM Access Message client interface
*/
#include <trace/interface.H>
#include <errl/errlmanager.H>
#include <devicefw/driverif.H>
#include <sbeio/sbeioif.H>
#include <sbeio/sbeioreasoncodes.H>
#include "sbe_fifodd.H"
extern trace_desc_t* g_trac_sbeio;
#define SBE_TRACF(printf_string,args...) \
TRACFCOMP(g_trac_sbeio,"ScomAccessDD: " printf_string,##args)
#define SBE_TRACD(printf_string,args...) \
TRACDCOMP(g_trac_sbeio,"ScomAccessDD: " printf_string,##args)
namespace SBEIO
{
/**
* @brief Performs a SBE FIFO device driver get/put scom operation
*
* Provides device driver interface to scom operations to be
* used, for example, the scom device driver. This is a wrapper
* to the fifo scom client interfaces.
*
* @param[in] i_opType Operation type, see DeviceFW::OperationType
* @param[in] i_target Target
* @param[in/out] io_pBuffer Read: Pointer to output data storage
* Write: Pointer to input data storage
* @param[in/out] io_buflen Input: size must be 8 bytes
* Output: Success = input value, Failure = 0
* @param[in] i_accessType DeviceFW::AccessType enum
* @param[in] i_args This is an argument list for DD framework.
* In this function, there's only one argument,
* containing the address
* @return errlHndl_t
*/
errlHndl_t ddFifoScomChipOp(DeviceFW::OperationType i_opType,
TARGETING::Target* i_target,
void * io_pBuffer,
size_t & io_buflen,
int64_t i_accessType,
va_list i_args)
{
errlHndl_t l_err = NULL;
uint64_t i_addr = va_arg(i_args,uint64_t);
SBE_TRACD(ENTER_MRK "ddFifoChipOp: i_addr=%llX, target=%.8X",
i_addr, TARGETING::get_huid(i_target) );
do
{
uint64_t l_data = 0;
// validate data length
if (unlikely( ( io_buflen != sizeof(uint64_t) )))
{
SBE_TRACF(ERR_MRK"fifoScomInterfaceChecks: "
"Invalid data length : io_buflen=%d",
io_buflen );
/*@
* @errortype
* @moduleid SBEIO_FIFO
* @reasoncode SBEIO_FIFO_INVALID_LENGTH
* @userdata1 Request Address
* @userdata2 Invalid request length
* @devdesc Request length must be 8 bytes
* @custdesc Firmware error communicating with boot device
*/
l_err = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
SBEIO_FIFO,
SBEIO_FIFO_INVALID_LENGTH,
i_addr,
TO_UINT64(io_buflen),
true /*SW error*/);
l_err->addProcedureCallout(HWAS::EPUB_PRC_HB_CODE,
HWAS::SRCI_PRIORITY_HIGH);
l_err->collectTrace(SBEIO_COMP_NAME);
break;
}
// do the read
if( DeviceFW::READ == i_opType )
{
l_err = getFifoScom(i_target,
i_addr,
l_data);
if (l_err) break;
//return data to caller
memcpy(io_pBuffer,&l_data,sizeof(uint64_t));
}
// do the write
else if( DeviceFW::WRITE == i_opType )
{
//get data from caller
memcpy(&l_data,io_pBuffer,sizeof(uint64_t));
l_err = putFifoScom(i_target,
i_addr,
l_data);
if (l_err) break;
}
else
{
SBE_TRACF(ERR_MRK "ddFifoChipOp: Invalid Op Type = %d",
i_opType );
/*@
* @errortype
* @moduleid SBEIO_FIFO
* @reasoncode SBEIO_FIFO_INVALID_OPERATION
* @userdata1 Request Address
* @userdata2 Request operation
* @devdesc Invalide operation. Read and Write supported.
* @custdesc Firmware error communicating with boot device
*/
l_err = new ERRORLOG::ErrlEntry(ERRORLOG::ERRL_SEV_UNRECOVERABLE,
SBEIO_FIFO,
SBEIO_FIFO_INVALID_OPERATION,
i_addr,
TO_UINT64(i_opType),
true /*SW error*/);
l_err->collectTrace(SBEIO_COMP_NAME);
}
}
while(0);
if ( l_err )
{
// On fail, assume no data was read or written
io_buflen = 0;
}
return l_err;
};
// Register fsidd access functions to DD framework
DEVICE_REGISTER_ROUTE(DeviceFW::READ,
DeviceFW::SBEFIFOSCOM,
TARGETING::TYPE_PROC,
ddFifoScomChipOp);
// Register fsidd access functions to DD framework
DEVICE_REGISTER_ROUTE(DeviceFW::WRITE,
DeviceFW::SBEFIFOSCOM,
TARGETING::TYPE_PROC,
ddFifoScomChipOp);
} //end namespace SBEIO
|
