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/*
* This file is part of libsamsung-ipc.
*
* Copyright (C) 2014 Paul Kocialkowski <contact@paulk.fr>
*
* libsamsung-ipc is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* libsamsung-ipc is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with libsamsung-ipc. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <string.h>
#include <samsung-ipc.h>
int ipc_svc_enter_setup(struct ipc_svc_enter_data *data,
unsigned char mode, unsigned char type)
{
if (data == NULL)
return -1;
memset(data, 0, sizeof(struct ipc_svc_enter_data));
data->mode = mode;
data->type = type;
if (mode == IPC_SVC_MODE_MONITOR)
data->magic = 0x00;
else
data->magic = 0x10;
return 0;
}
unsigned char ipc_svc_display_screen_count_extract(const void *data, size_t size)
{
struct ipc_svc_display_screen_header *header;
if (data == NULL || size < sizeof(struct ipc_svc_display_screen_header))
return 0;
header = (struct ipc_svc_display_screen_header *) data;
return header->count;
}
struct ipc_svc_display_screen_entry *ipc_svc_display_screen_extract(const void *data,
size_t size, unsigned int index)
{
struct ipc_svc_display_screen_entry *entry = NULL;
unsigned char count;
unsigned char i;
unsigned int offset;
if (data == NULL)
return NULL;
count = ipc_svc_display_screen_count_extract(data, size);
if (count == 0 || index >= count)
return NULL;
offset = sizeof(struct ipc_svc_display_screen_header);
for (i = 0; i < (index + 1); i++) {
entry = (struct ipc_svc_display_screen_entry *) ((unsigned char *) data + offset);
offset += sizeof(struct ipc_svc_display_screen_entry);
}
if (offset > size)
return NULL;
return entry;
}
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