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/* Copyright 2013-2014 IBM 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.
*/
#include <device.h>
#include <include/opal-internal.h>
#include <fsp-leds.h>
#include "spira.h"
#include "hdata.h"
const struct slca_entry *slca_get_entry(uint16_t slca_index)
{
struct HDIF_common_hdr *slca_hdr;
int count;
slca_hdr = get_hdif(&spira.ntuples.slca, SLCA_HDIF_SIG);
if (!slca_hdr) {
prerror("SLCA Invalid\n");
return NULL;
}
count = HDIF_get_iarray_size(slca_hdr, SLCA_IDATA_ARRAY);
if (count < 0) {
prerror("SLCA: Can't find SLCA array size!\n");
return NULL;
}
if (slca_index < count) {
const struct slca_entry *s_entry;
unsigned int entry_sz;
s_entry = HDIF_get_iarray_item(slca_hdr, SLCA_IDATA_ARRAY,
slca_index, &entry_sz);
if (s_entry && entry_sz >= sizeof(*s_entry))
return s_entry;
} else
prlog(PR_NOTICE,
"SLCA: Can't find slca_entry for index %d\n", slca_index);
return NULL;
}
const char *slca_get_vpd_name(uint16_t slca_index)
{
const struct slca_entry *s_entry;
s_entry = slca_get_entry(slca_index);
if (s_entry)
return (const char *)s_entry->fru_id;
else
prlog(PR_NOTICE,
"SLCA: Can't find fru_id for index %d\n", slca_index);
return NULL;
}
const char *slca_get_loc_code_index(uint16_t slca_index)
{
const struct slca_entry *s_entry;
s_entry = slca_get_entry(slca_index);
if (s_entry)
return s_entry->loc_code;
else
prlog(PR_NOTICE, "SLCA: Entry %d bad idata\n", slca_index);
return NULL;
}
void slca_vpd_add_loc_code(struct dt_node *node, uint16_t slca_index)
{
const char *fru_loc_code;
char loc_code[LOC_CODE_SIZE];
memset(loc_code, 0, sizeof(loc_code));
fru_loc_code = slca_get_loc_code_index(slca_index);
if (!fru_loc_code)
return;
strncpy(loc_code, fru_loc_code, LOC_CODE_SIZE - 1);
dt_add_property(node, "ibm,loc-code", loc_code, strlen(loc_code) + 1);
}
/*
* Get System Attention Indicator SLCA entry
*/
static const struct slca_entry *slca_get_sai_entry(void)
{
int count;
unsigned int i;
struct HDIF_common_hdr *slca_hdr;
slca_hdr = get_hdif(&spira.ntuples.slca, SLCA_HDIF_SIG);
if (!slca_hdr) {
prerror("SLCA Invalid\n");
return NULL;
}
count = HDIF_get_iarray_size(slca_hdr, SLCA_IDATA_ARRAY);
if (count < 0) {
prerror("SLCA: Can't find SLCA array size!\n");
return NULL;
}
for (i = 0; i < count; i++) {
const struct slca_entry *s_entry;
unsigned int entry_sz;
s_entry = HDIF_get_iarray_item(slca_hdr, SLCA_IDATA_ARRAY,
i, &entry_sz);
if (s_entry &&
VPD_ID(s_entry->fru_id[0],
s_entry->fru_id[1]) == SLCA_SAI_INDICATOR_ID) {
prlog(PR_TRACE, "SLCA: SAI index: 0x%x\n",
s_entry->my_index);
prlog(PR_TRACE, "SLCA: SAI location code: %s\n",
s_entry->loc_code);
return s_entry;
}
}
return NULL;
}
/*
* SLCA structure contains System Attention Indicator location
* code (FRU ID = SA). Add this information to device tree
* (under '/ibm,opal/led').
*/
void slca_dt_add_sai_node(void)
{
const struct slca_entry *s_entry;
struct dt_node *led_node, *sai_node;
s_entry = slca_get_sai_entry();
if (!s_entry)
return;
/* Create /ibm,opal node, if its not created already */
if (!opal_node)
return;
/* Crete LED parent node */
led_node = dt_find_by_path(opal_node, DT_PROPERTY_LED_NODE);
if (!led_node)
return;
if (s_entry->loc_code_len == 0 ||
s_entry->loc_code_len > LOC_CODE_SIZE)
return;
/* Create SAI node */
sai_node = dt_new(led_node, s_entry->loc_code);
assert(sai_node);
dt_add_property_string(sai_node,
DT_PROPERTY_LED_TYPES, LED_TYPE_ATTENTION);
}
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