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/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "cras_device_blocklist.h"
#include "iniparser_wrapper.h"
#include "utlist.h"
struct cras_device_blocklist {
dictionary *ini;
};
/*
* Exported Interface
*/
struct cras_device_blocklist *
cras_device_blocklist_create(const char *config_path)
{
struct cras_device_blocklist *blocklist;
char ini_name[MAX_INI_NAME_LENGTH + 1];
blocklist = calloc(1, sizeof(*blocklist));
if (!blocklist)
return NULL;
snprintf(ini_name, MAX_INI_NAME_LENGTH, "%s/%s", config_path,
"device_blocklist");
ini_name[MAX_INI_NAME_LENGTH] = '\0';
blocklist->ini = iniparser_load_wrapper(ini_name);
return blocklist;
}
void cras_device_blocklist_destroy(struct cras_device_blocklist *blocklist)
{
if (blocklist && blocklist->ini)
iniparser_freedict(blocklist->ini);
free(blocklist);
}
int cras_device_blocklist_check(struct cras_device_blocklist *blocklist,
unsigned vendor_id, unsigned product_id,
unsigned desc_checksum, unsigned device_index)
{
char ini_key[MAX_INI_KEY_LENGTH + 1];
if (!blocklist)
return 0;
snprintf(ini_key, MAX_INI_KEY_LENGTH, "USB_Outputs:%04x_%04x_%08x_%u",
vendor_id, product_id, desc_checksum, device_index);
ini_key[MAX_INI_KEY_LENGTH] = 0;
return iniparser_getboolean(blocklist->ini, ini_key, 0);
}
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