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/* Copyright (c) 2008-2010, Advanced Micro Devices. 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 Advanced Micro Devices 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 BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* 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.
*
*/
#ifndef __GSL_DRIVER_H
#define __GSL_DRIVER_H
/////////////////////////////////////////////////////////////////////////////
// macros
//////////////////////////////////////////////////////////////////////////////
#ifdef GSL_DEDICATED_PROCESS
#define GSL_CALLER_PROCESSID_GET() kos_callerprocess_getid()
#else
#define GSL_CALLER_PROCESSID_GET() kos_process_getid()
#endif // GSL_DEDICATED_PROCESS
#ifdef GSL_LOCKING_COURSEGRAIN
#define GSL_API_MUTEX_CREATE() gsl_driver.mutex = kos_mutex_create("gsl_global"); \
if (!gsl_driver.mutex) {return (GSL_FAILURE);}
#define GSL_API_MUTEX_LOCK() kos_mutex_lock(gsl_driver.mutex)
#define GSL_API_MUTEX_UNLOCK() kos_mutex_unlock(gsl_driver.mutex)
#define GSL_API_MUTEX_FREE() kos_mutex_free(gsl_driver.mutex); gsl_driver.mutex = 0;
#else
#define GSL_API_MUTEX_CREATE()
#define GSL_API_MUTEX_LOCK()
#define GSL_API_MUTEX_UNLOCK()
#define GSL_API_MUTEX_FREE()
#endif
//////////////////////////////////////////////////////////////////////////////
// types
//////////////////////////////////////////////////////////////////////////////
// -------------
// driver object
// -------------
typedef struct _gsl_driver_t {
gsl_flags_t flags_debug;
int refcnt;
unsigned int callerprocess[GSL_CALLER_PROCESS_MAX]; // caller process table
oshandle_t mutex; // global API mutex
void *hal;
gsl_sharedmem_t shmem;
gsl_device_t device[GSL_DEVICE_MAX];
int dmi_state; // OS_TRUE = enabled, OS_FALSE otherwise
gsl_flags_t dmi_mode; // single, double, or triple buffering
int dmi_frame; // set to -1 when DMI is enabled
int dmi_max_frame; // indicates the maximum frame # that we will support
} gsl_driver_t;
//////////////////////////////////////////////////////////////////////////////
// external variable declarations
//////////////////////////////////////////////////////////////////////////////
extern gsl_driver_t gsl_driver;
//////////////////////////////////////////////////////////////////////////////
// inline functions
//////////////////////////////////////////////////////////////////////////////
OSINLINE int
kgsl_driver_getcallerprocessindex(unsigned int pid, int *index)
{
int i;
// obtain index in caller process table
for (i = 0; i < GSL_CALLER_PROCESS_MAX; i++)
{
if (gsl_driver.callerprocess[i] == pid)
{
*index = i;
return (GSL_SUCCESS);
}
}
return (GSL_FAILURE);
}
#endif // __GSL_DRIVER_H
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