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/*++
* WonderMedia Codec Lock driver
*
* Copyright (c) 2013 WonderMedia Technologies, Inc.
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* WonderMedia Technologies, Inc.
* 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C
--*/
#ifndef COM_LOCK_H
/* To assert that only one occurrence is included */
#define COM_LOCK_H
/*-------------------- MODULE DEPENDENCY ---------------------------------*/
/*-------------------- EXPORTED PRIVATE TYPES-----------------------------*/
/*Define wmt lock types*/
enum {
lock_jpeg = 0, /* Lock for JPEG decoder */
lock_video, /* Lock for MSVD decoders */
lock_max
}; /* wmt_lock_type */
struct wmt_lock {
long lock_type; /* TYPE_JPEG or TYPE_VIDEO */
long arg2; /* for IO_WMT_UNLOCK, the timeout value */
int is_wait; /* is someone wait for this lock? */
};
#define wmt_lock_ioctl_arg struct wmt_lock
/*--------------------- EXPORTED PRIVATE FUNCTIONS ----------------------*/
/*--------------------------------------------------------------------------
Macros below are used for driver in IOCTL
--------------------------------------------------------------------------*/
#define LOCK_IOC_MAGIC 'L'
#define IO_WMT_LOCK _IOWR(LOCK_IOC_MAGIC, 0, unsigned long)
#define IO_WMT_UNLOCK _IOWR(LOCK_IOC_MAGIC, 1, unsigned long)
#define IO_WMT_CHECK_WAIT _IOR(LOCK_IOC_MAGIC, 2, unsigned long)
#endif /* ifndef COM_LOCK_H */
/*=== END com-lock.h =====================================================*/
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