///////////////////////////////////////////////////////////////////////////////////
// File     : drivers.h
// Date     : 01/04/2012
// Author   : alain greiner and joel porquet
// Copyright (c) UPMC-LIP6
///////////////////////////////////////////////////////////////////////////////////

#ifndef _GIET_SYS_DRIVERS_H_
#define _GIET_SYS_DRIVERS_H_

///////////////////////////////////////////////////////////////////////////////////
// Timer access functions (used for both vci_multi_timer and vci_xicu)
///////////////////////////////////////////////////////////////////////////////////

extern volatile unsigned char _timer_event[];

unsigned int _timer_start(unsigned int cluster_id, unsigned int local_id, unsigned int period);
unsigned int _timer_stop(unsigned int cluster_id, unsigned int local_id);
unsigned int _timer_reset_irq(unsigned int cluster_id, unsigned int local_id);
unsigned int _timer_reset_irq_cpt(unsigned int cluster_id, unsigned int local_id);


///////////////////////////////////////////////////////////////////////////////////
// TTY access functions and variables
///////////////////////////////////////////////////////////////////////////////////

extern volatile unsigned char _tty_get_buf[];
extern volatile unsigned char _tty_get_full[];
extern unsigned int _tty_put_lock;

unsigned int _tty_write(const char * buffer, unsigned int length);
unsigned int _tty_read(char * buffer, unsigned int length);
unsigned int _tty_get_char(unsigned int tty_id, unsigned char * buffer); 

///////////////////////////////////////////////////////////////////////////////////
// ICU access functions (both vci_multi_icu and vci_xicu)
///////////////////////////////////////////////////////////////////////////////////

unsigned int _icu_get_index(unsigned int cluster_id, unsigned int proc_id, unsigned int * buffer);
unsigned int _icu_set_mask(
        unsigned int cluster_id,
        unsigned int proc_id,
        unsigned int mask, 
        unsigned int is_timer);

///////////////////////////////////////////////////////////////////////////////////
// IOC access functions and variables (vci_block_device)
///////////////////////////////////////////////////////////////////////////////////

extern volatile unsigned int _ioc_status;
extern volatile unsigned int _ioc_done;
extern unsigned int _ioc_lock;
extern unsigned int _ioc_iommu_ix1;
extern unsigned int _ioc_iommu_npages; 


unsigned int _ioc_write(unsigned int lba, const void * buffer, unsigned int count);
unsigned int _ioc_read(unsigned int lba, void * buffer, unsigned int count);
unsigned int _ioc_completed();
unsigned int _ioc_get_status(unsigned int * status);
unsigned int _ioc_get_block_size();

///////////////////////////////////////////////////////////////////////////////////
// Multi DMA variables            (vci_multi_dma)
///////////////////////////////////////////////////////////////////////////////////

extern volatile unsigned int _dma_status[];
extern volatile unsigned int _dma_done[];
extern unsigned int _dma_lock[];
extern unsigned int _dma_iommu_ix1;
extern unsigned int _dma_iommu_npages[];

unsigned int _dma_reset_irq(unsigned int cluster_id, unsigned int local_id);
unsigned int _dma_get_status(unsigned int cluster_id, unsigned int local_id, unsigned int * status);

unsigned int _dma_transfer(
        unsigned int dev_type,
        unsigned int to_user,
        unsigned int offset,
        unsigned int user_vaddr,
        unsigned int length);

unsigned int _dma_completed();

///////////////////////////////////////////////////////////////////////////////////
// Frame Buffer access functions  (vci_frame_buffer)
///////////////////////////////////////////////////////////////////////////////////

unsigned int _fb_sync_write(unsigned int offset, const void * buffer, unsigned int length);
unsigned int _fb_sync_read( unsigned int offset, const void * buffer, unsigned int length);
unsigned int _fb_write(     unsigned int offset, const void * buffer, unsigned int length);
unsigned int _fb_read(      unsigned int offset, const void * buffer, unsigned int length);

unsigned int _fb_completed();

///////////////////////////////////////////////////////////////////////////////////
// NIC device access functions  (vci_multi_nic)
///////////////////////////////////////////////////////////////////////////////////

unsigned int _nic_sync_write(unsigned int offset, const void * buffer, unsigned int length);
unsigned int _nic_sync_read( unsigned int offset, const void * buffer, unsigned int length);
unsigned int _nic_write(     unsigned int offset, const void * buffer, unsigned int length);
unsigned int _nic_read(      unsigned int offset, const void * buffer, unsigned int length);

unsigned int _nic_completed();

///////////////////////////////////////////////////////////////////////////////////
// GCD access functions
///////////////////////////////////////////////////////////////////////////////////

unsigned int _gcd_write(unsigned int register_index, unsigned int   value);
unsigned int _gcd_read( unsigned int register_index, unsigned int * buffer);

///////////////////////////////////////////////////////////////////////////////////
// MEMC access functions
///////////////////////////////////////////////////////////////////////////////////

void _memc_inval( unsigned long long buf_paddr, unsigned int buf_length);
void _memc_sync(  unsigned long long buf_paddr, unsigned int buf_length);

///////////////////////////////////////////////////////////////////////////////////
// Heap related function(s)
///////////////////////////////////////////////////////////////////////////////////

unsigned int _heap_info(unsigned int * vaddr, unsigned int * size);


#endif

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