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/* Copyright (c) 2002,2007-2010, Code Aurora Forum. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
*/
#include "gsl.h"
#include "gsl_hal.h"
#ifdef GSL_BLD_G12
//////////////////////////////////////////////////////////////////////////////
// defines
//////////////////////////////////////////////////////////////////////////////
#define GSL_CMDWINDOW_TARGET_MASK 0x000000FF
#define GSL_CMDWINDOW_ADDR_MASK 0x00FFFF00
#define GSL_CMDWINDOW_TARGET_SHIFT 0
#define GSL_CMDWINDOW_ADDR_SHIFT 8
//////////////////////////////////////////////////////////////////////////////
// macros
//////////////////////////////////////////////////////////////////////////////
#ifdef GSL_LOCKING_FINEGRAIN
#define GSL_CMDWINDOW_MUTEX_CREATE() device->cmdwindow_mutex = kos_mutex_create("gsl_cmdwindow"); \
if (!device->cmdwindow_mutex) return (GSL_FAILURE);
#define GSL_CMDWINDOW_MUTEX_LOCK() kos_mutex_lock(device->cmdwindow_mutex)
#define GSL_CMDWINDOW_MUTEX_UNLOCK() kos_mutex_unlock(device->cmdwindow_mutex)
#define GSL_CMDWINDOW_MUTEX_FREE() kos_mutex_free(device->cmdwindow_mutex); device->cmdwindow_mutex = 0;
#else
#define GSL_CMDWINDOW_MUTEX_CREATE() (void) device // unreferenced formal parameter
#define GSL_CMDWINDOW_MUTEX_LOCK()
#define GSL_CMDWINDOW_MUTEX_UNLOCK()
#define GSL_CMDWINDOW_MUTEX_FREE() (void) device // unreferenced formal parameter
#endif
//////////////////////////////////////////////////////////////////////////////
// functions
//////////////////////////////////////////////////////////////////////////////
int
kgsl_cmdwindow_init(gsl_device_t *device)
{
GSL_CMDWINDOW_MUTEX_CREATE();
return (GSL_SUCCESS);
}
//----------------------------------------------------------------------------
int
kgsl_cmdwindow_close(gsl_device_t *device)
{
GSL_CMDWINDOW_MUTEX_FREE();
return (GSL_SUCCESS);
}
#endif // GSL_BLD_G12
//----------------------------------------------------------------------------
KGSL_API int
kgsl_cmdwindow_write(gsl_deviceid_t device_id, gsl_cmdwindow_t target, unsigned int addr, unsigned int data)
{
#ifdef GSL_BLD_G12
gsl_device_t *device;
unsigned int cmdwinaddr;
unsigned int cmdstream;
kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_TRACE,
"--> int kgsl_cmdwindow_write( gsl_device_id_t device_id=%d, gsl_cmdwindow_t target=%d, unsigned int addr=0x%08x, unsigned int data=0x%08x)\n", device_id, target, addr, data );
GSL_API_MUTEX_LOCK();
device = &gsl_driver.device[device_id-1]; // device_id is 1 based
if (target < GSL_CMDWINDOW_MIN || target > GSL_CMDWINDOW_MAX)
{
GSL_API_MUTEX_UNLOCK();
kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_ERROR, "ERROR: Invalid target.\n" );
kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_TRACE, "<-- kgsl_cmdwindow_write. Return value %B\n", GSL_FAILURE );
return (GSL_FAILURE);
}
if ((!(device->flags & GSL_FLAGS_INITIALIZED) && target == GSL_CMDWINDOW_MMU) ||
(!(device->flags & GSL_FLAGS_STARTED) && target != GSL_CMDWINDOW_MMU))
{
GSL_API_MUTEX_UNLOCK();
kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_ERROR, "ERROR: Invalid device state to write to selected targer.\n" );
kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_TRACE, "<-- kgsl_cmdwindow_write. Return value %B\n", GSL_FAILURE );
return (GSL_FAILURE);
}
// set command stream
if (target == GSL_CMDWINDOW_MMU)
{
#ifdef GSL_NO_MMU
GSL_API_MUTEX_UNLOCK();
return (GSL_SUCCESS);
#endif
cmdstream = ADDR_VGC_MMUCOMMANDSTREAM;
}
else
{
cmdstream = ADDR_VGC_COMMANDSTREAM;
}
// set command window address
cmdwinaddr = ((target << GSL_CMDWINDOW_TARGET_SHIFT) & GSL_CMDWINDOW_TARGET_MASK);
cmdwinaddr |= ((addr << GSL_CMDWINDOW_ADDR_SHIFT) & GSL_CMDWINDOW_ADDR_MASK);
GSL_CMDWINDOW_MUTEX_LOCK();
#ifndef GSL_NO_MMU
// set mmu pagetable
kgsl_mmu_setpagetable(device, GSL_CALLER_PROCESSID_GET());
#endif
// write command window address
kgsl_device_regwrite(device_id, (cmdstream)>>2, cmdwinaddr);
// write data
kgsl_device_regwrite(device_id, (cmdstream)>>2, data);
GSL_CMDWINDOW_MUTEX_UNLOCK();
GSL_API_MUTEX_UNLOCK();
kgsl_log_write( KGSL_LOG_GROUP_COMMAND | KGSL_LOG_LEVEL_TRACE, "<-- kgsl_cmdwindow_write. Return value %B\n", GSL_SUCCESS );
return (GSL_SUCCESS);
#else
// unreferenced formal parameter
(void) device_id;
(void) target;
(void) addr;
(void) data;
return (GSL_FAILURE);
#endif // GSL_BLD_G12
}
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