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power: Include powerhintparser.[h|c]
Signed-off-by: Arvind Mukund <[email protected]> Change-Id: I865536687d4b0dc597035a0ae6a6d71bbe8119be
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/* Copyright (c) 2016-2017, The Linux Foundation. All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions are | ||
* met: | ||
* * Redistributions of source code must retain the above copyright | ||
* notice, this list of conditions and the following disclaimer. | ||
* * Redistributions in binary form must reproduce the above | ||
* copyright notice, this list of conditions and the following | ||
* disclaimer in the documentation and/or other materials provided | ||
* with the distribution. | ||
* * Neither the name of The Linux Foundation nor the names of its | ||
* contributors may be used to endorse or promote products derived | ||
* from this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED | ||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT | ||
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS | ||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | ||
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE | ||
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN | ||
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
* | ||
*/ | ||
#include <cutils/log.h> | ||
#include <fcntl.h> | ||
#include <string.h> | ||
#include <cutils/properties.h> | ||
#include <libxml/parser.h> | ||
#include <libxml/tree.h> | ||
#include <unistd.h> | ||
#include "powerhintparser.h" | ||
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#ifdef LOG_TAG | ||
// We want "QTI PowerHAL" as the log tag | ||
#undef LOG_TAG | ||
#endif | ||
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#define LOG_TAG "QTI PowerHAL" | ||
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int parsePowerhintXML() { | ||
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xmlDocPtr doc; | ||
xmlNodePtr currNode; | ||
const char *opcode_str, *value_str, *type_str; | ||
int opcode = 0, value = 0, type = 0; | ||
int numParams = 0; | ||
static int hintCount; | ||
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if(access(POWERHINT_XML, F_OK) < 0) { | ||
return -1; | ||
} | ||
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doc = xmlReadFile(POWERHINT_XML, "UTF-8", XML_PARSE_RECOVER); | ||
if(!doc) { | ||
ALOGE("Document not parsed successfully"); | ||
return -1; | ||
} | ||
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currNode = xmlDocGetRootElement(doc); | ||
if(!currNode) { | ||
ALOGE("Empty document"); | ||
xmlFreeDoc(doc); | ||
xmlCleanupParser(); | ||
return -1; | ||
} | ||
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// Confirm the root-element of the tree | ||
if(xmlStrcmp(currNode->name, BAD_CAST "Powerhint")) { | ||
ALOGE("document of the wrong type, root node != root"); | ||
xmlFreeDoc(doc); | ||
xmlCleanupParser(); | ||
return -1; | ||
} | ||
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currNode = currNode->xmlChildrenNode; | ||
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for(; currNode != NULL; currNode=currNode->next) { | ||
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if(currNode->type != XML_ELEMENT_NODE) | ||
continue; | ||
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xmlNodePtr node = currNode; | ||
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if(hintCount == MAX_HINT) { | ||
ALOGE("Number of hints exceeded the max count of %d\n",MAX_HINT); | ||
break; | ||
} | ||
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if(!xmlStrcmp(node->name, BAD_CAST "Hint")) { | ||
if(xmlHasProp(node, BAD_CAST "type")) { | ||
type_str = (const char*)xmlGetProp(node, BAD_CAST "type"); | ||
if (type_str == NULL) | ||
{ | ||
ALOGE("xmlGetProp failed on type"); | ||
xmlFreeDoc(doc); | ||
xmlCleanupParser(); | ||
return -1; | ||
} | ||
type = strtol(type_str, NULL, 16); | ||
} | ||
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node = node->children; | ||
while(node != NULL) { | ||
if(!xmlStrcmp(node->name, BAD_CAST "Resource")) { | ||
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if(xmlHasProp(node, BAD_CAST "opcode")) { | ||
opcode_str = (const char*)xmlGetProp(node, BAD_CAST "opcode"); | ||
if (opcode_str == NULL) | ||
{ | ||
ALOGE("xmlGetProp failed on opcode"); | ||
xmlFreeDoc(doc); | ||
xmlCleanupParser(); | ||
return -1; | ||
} | ||
opcode = strtol(opcode_str, NULL, 16); | ||
} | ||
if(xmlHasProp(node, BAD_CAST "value")) { | ||
value_str = (const char*)xmlGetProp(node, BAD_CAST "value"); | ||
if (value_str == NULL) | ||
{ | ||
ALOGE("xmlGetProp failed on value"); | ||
xmlFreeDoc(doc); | ||
xmlCleanupParser(); | ||
return -1; | ||
} | ||
value = strtol(value_str, NULL, 16); | ||
} | ||
if(opcode > 0) { | ||
if(numParams < (MAX_PARAM-1)) { | ||
powerhint[hintCount].paramList[numParams++] = opcode; | ||
powerhint[hintCount].paramList[numParams++] = value; | ||
} else { | ||
ALOGE("Maximum parameters exceeded for Hint ID %x\n",type); | ||
opcode = value = 0; | ||
break; | ||
} | ||
} | ||
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opcode = value = 0; | ||
} | ||
node = node->next; | ||
} | ||
powerhint[hintCount].type = type; | ||
powerhint[hintCount].numParams = numParams; | ||
numParams = 0; | ||
} | ||
hintCount++; | ||
} | ||
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xmlFreeDoc(doc); | ||
xmlCleanupParser(); | ||
return 0; | ||
} | ||
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int* getPowerhint(int hint_id, int *params) { | ||
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int *result = NULL; | ||
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if(!hint_id) | ||
return result; | ||
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ALOGI("Powerhal hint received=%x\n",hint_id); | ||
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if(!powerhint[0].numParams) { | ||
parsePowerhintXML(); | ||
} | ||
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for(int i = 0; i < MAX_HINT; i++) { | ||
if(hint_id == powerhint[i].type) { | ||
*params = powerhint[i].numParams; | ||
result = powerhint[i].paramList; | ||
break; | ||
} | ||
} | ||
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/*for (int j = 0; j < *params; j++) | ||
ALOGI("Powerhal resource again%x = \n", result[j]);*/ | ||
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return result; | ||
} |
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/* Copyright (c) 2016, The Linux Foundation. All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions are | ||
* met: | ||
* * Redistributions of source code must retain the above copyright | ||
* notice, this list of conditions and the following disclaimer. | ||
* * Redistributions in binary form must reproduce the above | ||
* copyright notice, this list of conditions and the following | ||
* disclaimer in the documentation and/or other materials provided | ||
* with the distribution. | ||
* * Neither the name of The Linux Foundation nor the names of its | ||
* contributors may be used to endorse or promote products derived | ||
* from this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED | ||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT | ||
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS | ||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | ||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR | ||
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | ||
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE | ||
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN | ||
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
* | ||
*/ | ||
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#ifndef __POWERHINTPARSER__ | ||
#define __POWERHINTPARSER__ | ||
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#define POWERHINT_XML "/vendor/etc/powerhint.xml" | ||
#define MAX_HINT 6 | ||
#define MAX_PARAM 30 | ||
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typedef struct perflock_param_t { | ||
int type; | ||
int numParams; | ||
int paramList[MAX_PARAM];//static limit on number of hints - 15 | ||
}perflock_param_t; | ||
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static perflock_param_t powerhint[MAX_HINT]; | ||
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int parsePowerhintXML(); | ||
int *getPowerhint(int, int*); | ||
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#endif /* __POWERHINTPARSER__ */ |