source: trunk/kernel/drivers/soclib/drvdb.h @ 65

/*
 * drvdb.h - a dictionary of supported devices and their drivers
 *
 * Copyright (c) 2008,2009,2010,2011,2012 Ghassan Almaless
 * Copyright (c) 2011,2012 UPMC Sorbonne Universites
 *
 * This file is part of ALMOS-kernel.
 *
 * ALMOS-kernel 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; version 2.0 of the License.
 *
 * ALMOS-kernel 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 ALMOS-kernel; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef _DRVDB_H_
#define _DRVDB_H_

#include <driver.h>


/******************************************************************************************
 * This enum defines the Supported Drivers types
 * This enum must be kept consistent with the global array in drvdb.c file 
 *****************************************************************************************/

typedef enum
{
        SOCLIB_RAM_ID = 0,
        SOCLIB_XICU_ID,
        SOCLIB_TTY_ID,
        SOCLIB_DMA_ID,
        SOCLIB_BLKDEV_ID,
        SOCLIB_FB_ID,
        SOCLIB_ICU_ID,
        SOCLIB_TIMER_ID,
        SOCLIB_IOPIC_ID,
        SOCLIB_MEMC_ID,
        SOCLIB_MNIC_ID,
        SOCLIB_CHDMA_ID,
        SOCLIB_RESERVED_ID,
        SOCLIB_DRVID_NR
}soclib_drvid_t;

/* Driver DataBase Entry */
struct drvdb_entry_s;

/* Entry Setters */
#define drvdb_entry_set_id(entry,drvid)
#define drvdb_entry_set_name(entry,name)
#define drvdb_entry_set_info(entry,info)
#define drvdb_entry_set_driver(entry,driver)

/* Entry Getters */
#define drvdb_entry_get_id(entry)
#define drvdb_entry_get_name(entry)
#define drvdb_entry_get_info(entry)
#define drvdb_entry_get_driver(entry)


/******************************************************************************************
 * This structure define a Driver descriptor 
 *****************************************************************************************/
typedef struct drvdb_entry_s
{
        uint32_t   id;
        char     * name;
        char     * info;
        driver_t * driver;
}
drvdb_entry_t;


#define drvdb_entry_get_id(_entry)       ((_entry)->id)
#define drvdb_entry_get_name(_entry)     ((_entry)->name)
#define drvdb_entry_get_info(_entry)     ((_entry)->info)
#define drvdb_entry_get_driver(_entry)   ((_entry)->driver)

#define drvdb_entry_set_id(_entry,_drvid)      do {(_entry)->id = (_drvid);}      while(0)
#define drvdb_entry_set_name(_entry,_name)     do {(_entry)->name = (_name);}     while(0)
#define drvdb_entry_set_info(_entry,_info)     do {(_entry)->info = (_info);}     while(0)
#define drvdb_entry_set_driver(_entry,_driver) do {(_entry)->driver = (_driver);} while(0)

/******************************************************************************************
 * This function returns a pointer on driver descriptor from its index.
 * @ drvid   : index in the drivers descriptors array.
 *****************************************************************************************/
drvdb_entry_t * drvdb_locate_byId( uint32_t drvid );

/******************************************************************************************
 * This function returns a pointer on driver descriptor from its name.
 * @ name    : name in the drivers descriptors array.
 *****************************************************************************************/
drvdb_entry_t * drvdb_locate_byName( char * name );

/******************************************************************************************
 * This function register a driver pointer in the driver descriptors array.
 * @ drvid    : index in the drivers descriptors array.
 * @ driver   : function pointer to be registered.
 *****************************************************************************************/
error_t drvdb_set_driver( uint32_t   drvid, 
                          driver_t * driver );

/******************************************************************************************
 * This function returns a driver pointer from the driver index
 * @ drvid    : index in the drivers descriptors array.
 * @ returns  function pointer to be registered.
 *****************************************************************************************/
driver_t * drvdb_get_driver( uint32_t drvid );

#endif  /* _DRVDB_H_ */