/** @file timer.c
*
* @author Rodolphe Hilpert
*
* @date 05.01.06
*
* @version  $LastChangedRevision$
* @version $LastChangedDate$
*
* Kernel functions for the timer functionality of the board.
*
*/

/** @par LICENCE
* @verbatim
 Copyright (C) 2004,2005  ADDI-DATA GmbH for the source code and the documentation.

        ADDI-DATA GmbH
        Dieselstrasse 3
        D-77833 Ottersweier
        Tel: +19(0)7223/9493-0
        Fax: +49(0)7223/9493-92
        http://www.addi-data-com
        info@addi-data.com

    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 shoud find the complete GPL in the COPYING file accompanying
    this source code.
* @endverbatim
*/

#include <linux/module.h>
#include <linux/version.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
	#include <asm/uaccess.h>
#else
	#include <linux/uaccess.h>
#endif
#include <asm/io.h>

#include "xpci3xxx-private.h"

/**@def EXPORT_NO_SYMBOLS
 * Function in this file are not exported.
 */
EXPORT_NO_SYMBOLS;

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,27)
#define __user
#endif

int do_CMD_xpci3xxx_InitTimer                      (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
	uint8_t   b_TimerNumber = 0;
    uint8_t   b_TimerMode = 0;
    uint8_t   b_TimerTimeUnit = 0;
    uint32_t dw_ReloadValue = 0;
	int ret;
    uint32_t dw_ArgTable[4];

	if ( copy_from_user( dw_ArgTable, (uint32_t __user *) arg, sizeof(dw_ArgTable) ) )
         return -EFAULT;

	b_TimerNumber = (uint8_t) dw_ArgTable[0];
    b_TimerMode = (uint8_t) dw_ArgTable[1];
    b_TimerTimeUnit = (uint8_t) dw_ArgTable[2];
    dw_ReloadValue = dw_ArgTable[3];

	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_InitTimer (	pdev,
									b_TimerNumber,
                                    b_TimerMode,
                                    b_TimerTimeUnit,
                                    dw_ReloadValue);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}

	return ret;
}


int do_CMD_xpci3xxx_ReleaseTimer                    (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
	uint8_t b_TimerNumber = 0;
	int ret;

	if ( copy_from_user( &b_TimerNumber, (uint8_t __user *) arg, sizeof(b_TimerNumber) ) )
         return -EFAULT;

	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_ReleaseTimer (pdev, b_TimerNumber);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}

	return ret;
}

int do_CMD_xpci3xxx_StartTimer                    (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
	uint8_t   b_TimerNumber = 0;
	int ret;

	if ( copy_from_user( &b_TimerNumber, (uint8_t __user *) arg, sizeof(b_TimerNumber) ) )
         return -EFAULT;

	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_StartTimer (pdev, b_TimerNumber);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}
	return ret;
}

int do_CMD_xpci3xxx_StartAllTimers                    (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
	int ret;
	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_StartAllTimers (pdev);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}

	return ret;

}



int do_CMD_xpci3xxx_TriggerTimer                    (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
	uint8_t   b_TimerNumber = 0;
	int ret;

	if ( copy_from_user( &b_TimerNumber, (uint8_t __user *) arg, sizeof(b_TimerNumber) ) )
         return -EFAULT;
	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_TriggerTimer (pdev, b_TimerNumber);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}
	return ret;

}

int do_CMD_xpci3xxx_TriggerAllTimers                    (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
	int ret;
	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_TriggerAllTimers (pdev);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}
	return ret;
}

int do_CMD_xpci3xxx_StopTimer                    (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
	uint8_t   b_TimerNumber = 0;
	int ret;

 	if ( copy_from_user( &b_TimerNumber, (uint8_t __user *) arg, sizeof(b_TimerNumber) ) )
         return -EFAULT;

	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_StopTimer (pdev, b_TimerNumber);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}
	return ret;

}

int do_CMD_xpci3xxx_StopAllTimers                    (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{

	int ret;

	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_StopAllTimers (pdev);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}

	return ret;
}

int do_CMD_xpci3xxx_ReadTimerValue  (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
	uint8_t   b_TimerNumber = 0;
	uint32_t dw_TimerValue = 0;

	uint32_t dw_ArgTable[2];
	int ret;

	if ( copy_from_user( dw_ArgTable, (uint32_t __user *) arg, sizeof(dw_ArgTable) ) )
         return -EFAULT;

    b_TimerNumber = (uint8_t)dw_ArgTable[0];

	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret =  i_xpci3xxx_ReadTimerValue  (pdev, b_TimerNumber, &dw_TimerValue);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}

	if (ret)
		return ret;

	dw_ArgTable[1] = dw_TimerValue;

	/* Transfers the value to the user */
	if ( copy_to_user( (uint32_t __user *) arg , dw_ArgTable, sizeof(dw_ArgTable) ) )
    	return -EFAULT;

	return 0;
}


int do_CMD_xpci3xxx_ReadTimerStatus  (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
    uint8_t b_TimerNumber = 0;
    uint8_t b_TimerStatus = 0;
    uint8_t b_SoftwareTriggerStatus = 0;
    uint8_t b_HardwareTriggerStatus = 0;

    uint8_t b_ArgTable[4];
	int ret;

	if ( copy_from_user( b_ArgTable, (uint8_t __user *) arg, sizeof(b_ArgTable) ) )
         return -EFAULT;

	b_TimerNumber = b_ArgTable[0];

	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_ReadTimerStatus  (pdev, b_TimerNumber,&b_TimerStatus, &b_SoftwareTriggerStatus,&b_HardwareTriggerStatus);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}

	if (ret)
		return ret;

	b_ArgTable[1] = b_TimerStatus;
	b_ArgTable[2] = b_SoftwareTriggerStatus;
	b_ArgTable[3] = b_HardwareTriggerStatus;

      /* Transfers the value to the user */
	if ( copy_to_user( (uint8_t __user *) arg , b_ArgTable, sizeof(b_ArgTable) ) )
         return -EFAULT;

	return 0;
}

int do_CMD_xpci3xxx_EnableDisableTimerInterrupt          (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
	uint8_t   b_TimerNumber = 0;
    uint8_t   b_InterruptFlag = 0;
	uint8_t   b_ArgTable[2];
	int ret;

	if ( copy_from_user( b_ArgTable, (uint8_t __user *) arg, sizeof(b_ArgTable) ) )
         return -EFAULT;

	b_TimerNumber = b_ArgTable[0];
	b_InterruptFlag = b_ArgTable[1];

	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_EnableDisableTimerInterrupt (pdev, b_TimerNumber, b_InterruptFlag);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}

	return ret;

}

int do_CMD_xpci3xxx_EnableDisableTimerHardwareOutput          (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
	uint8_t   b_TimerNumber = 0;
	uint8_t   b_OutputFlag = 0;
	uint8_t   b_OutputLevel = 0;
	int ret;

    uint8_t b_ArgTable[3];

    if ( copy_from_user( b_ArgTable, (uint8_t __user *) arg, sizeof(b_ArgTable) ) )
         return -EFAULT;

	b_TimerNumber = b_ArgTable[0];
	b_OutputFlag = b_ArgTable[1];
	b_OutputLevel = b_ArgTable[1];

	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_EnableDisableTimerHardwareOutput (pdev, b_TimerNumber, b_OutputFlag, b_OutputLevel);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}

	return ret;

}

int do_CMD_xpci3xxx_GetTimerHardwareOutputStatus  (struct pci_dev * pdev, unsigned int cmd, unsigned long arg)
{
	uint8_t   b_TimerNumber = 0;
	uint8_t b_HardwareOutputStatus;
	int ret;
	uint8_t b_ArgTable[2];

    if ( copy_from_user( b_ArgTable, (uint8_t __user *) arg, sizeof(b_ArgTable) ) )
         return -EFAULT;

    b_TimerNumber = b_ArgTable[0];

	{
		unsigned long irqstate;
		XPCI3XXX_LOCK(pdev,&irqstate);
		{
			ret = i_xpci3xxx_GetTimerHardwareOutputStatus  (pdev, b_TimerNumber, &b_HardwareOutputStatus);
		}
		XPCI3XXX_UNLOCK(pdev,irqstate);
	}

	if (ret)
		return ret;

	b_ArgTable[1] = b_HardwareOutputStatus;

    /* Transfers the value to the user */
	if ( copy_to_user( (uint8_t __user *) arg , b_ArgTable, sizeof(b_ArgTable) ) )
         return -EFAULT;

	return 0;
}
