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/*

 * The authors hereby grant permission to use, copy, modify, distribute,

 * and license this software and its documentation for any purpose, provided

 * that existing copyright notices are retained in all copies and that this

 * notice is included verbatim in any distributions. No written agreement,

 * license, or royalty fee is required for any of the authorized uses.

 * Modifications to this software may be copyrighted by their authors

 * and need not follow the licensing terms described here, provided that

 * the new terms are clearly indicated on the first page of each file where

 * they apply.

 */

/************************************************************************

 *

 * pll.h

 *

 * Copyright (C) 2008, 2009 Analog Devices, Inc.

 *

 ************************************************************************/

#ifndef __ASSEMBLER__

#pragma once

#pragma system_header

#endif

#ifndef _PLL_H

#define _PLL_H

#ifdef _MISRA_RULES

#pragma diag(push)

#pragma diag(suppress:misra_rule_6_3)

#endif /* _MISRA_RULES */

#define NO_STARTUP_SET 0

#define MAX_IN_STARTUP 1

#ifndef __ASSEMBLER__

enum clkctrl_t {

    /* no modification of PLL rates in CRT startup - default */

   no_startup_set=NO_STARTUP_SET,

    /* CRT startup sets PLL rates to suitable maximum values */

   max_in_startup=MAX_IN_STARTUP

};

/*

** Define __clk_ctrl to 1 to cause startup to set PLL rates for maximum

** speed performance rates.  The default version defined in the runtime-

** libraries defines __clk_ctrl to 0 which disables the feature.

*/

extern enum clkctrl_t __clk_ctrl;

#ifdef __cplusplus

extern "C" {

#endif

#if defined(__ADSPLPBLACKFIN__)

/* Sets SSEL and CSEL bits in PLL_DIV to passed values.

** Returns -1 on failure.

*/

int pll_set_system_clocks(int _csel, int _ssel);

/*

** Sets MSEL and DF bits in PLL_CTL and LOCKCNT in PLL_LOCKCNT.

** Returns -1 on failure.

*/

int pll_set_system_vco(int _msel, int _df, int _lockcnt);

#endif /* __ADSPLPBLACKFIN__ */

#ifdef __cplusplus

}

#endif

#endif /* __ASSEMBLER__ */

#ifdef _MISRA_RULES

#pragma diag(pop)

#endif /* _MISRA_RULES */

#endif /* _PLL_H */