csl_pllc.h

Configuring External Interrupts on TMS320C672x Devices

/*  ============================================================================
 *   Copyright (c) Texas Instruments Inc 2002, 2003, 2004, 2005
 *
 *   Use of this software is controlled by the terms and conditions found
 *   in the license agreement under which this software has been supplied.
 *   ===========================================================================
 */

/** @file  csl_pllc.h
 *
 *  @path $(CSLPATH)\pllc\src
 *
 *  @brief PLLC functional layer API header file
 *
 */

/** @mainpage PLLC CSL 3.x
 *
 * @section Introduction
 *
 * @subsection xxx Purpose and Scope
 * The purpose of this document is to identify a set of common CSL APIs for
 * the PLLC module across various devices. The CSL developer is expected to
 * refer to this document while designing APIs for these modules. Some of the
 * listed APIs may not be applicable to a given PLLC module. While other cases
 * this list of APIs may not be sufficient to cover all the features of a
 * particular PLLC Module. The CSL developer should use his discretion designing
 * new APIs or extending the existing ones to cover these.
 *
 * @subsection aaa Terms and Abbreviations
 *   -# CSL:  Chip Support Library
 *   -# API:  Application Programmer Interface
 *
 * @subsection References
 *    -# CSL-001-DES, CSL 3.x Design Specification DocumentVersion 1.02
 *
 */

/* =============================================================================
 *  Revision History
 *  ===============
 *  22-Nov-2004 Asha File Created.
 * =============================================================================
 */

#ifndef _CSL_PLLC_H_
#define _CSL_PLLC_H_

#ifdef __cplusplus
extern "C" {
#endif

#include <cslr.h>
#include <soc.h>
#include <csl_error.h>
#include <csl_types.h>
#include <csl.h>
#include <cslr_pllc.h>


/**
 *  pllc global macro declarations
 */
 
#define DELAY_200MS		6000

/**
 *  pllc ENUM declarations
 */
/** \brief  This enum describes the modes of the pllc
 *
 *  It can either be in bypass/pll mode.
 */
typedef enum {
	/** The pllc is in bypass mode. */
	CSL_PLLC_BYPASS = CSL_PLLC_PLLCSR_PLLEN_BYPASS,
	/** The pllc is in pll mode. */
	CSL_PLLC_PLL_MODE = CSL_PLLC_PLLCSR_PLLEN_PLL
} CSL_PllcMode;
	
/** \brief  This enum describes the reset states of the pllc
 *
 *  It can be either released/asserted.
 */
typedef enum {
	/** The pllc reset is released. */
	CSL_PLLC_RELEASE = CSL_PLLC_PLLCSR_PLLRST_RELEASED,
	/** The pllc reset is asserted. */
	CSL_PLLC_ASSERT  = CSL_PLLC_PLLCSR_PLLRST_ASSERTED
} CSL_PllcResetState;
				 
/** \brief  This enum describes the states of the pllc
 *
 *  It can be either in operational/power down state.
 */
typedef enum {
	/** The pllc is in operational state. */
	CSL_PLLC_OPERATIONAL = CSL_PLLC_PLLCSR_PLLPWRDN_NO,
	/** The pllc is in power down state. */
	CSL_PLLC_PWRDN       = CSL_PLLC_PLLCSR_PLLPWRDN_YES
} CSL_PllcState;

/** \brief  This enum describes the Clock state of the PLL
 *
 *  It can be either in Stable / Not Stable.
 */
typedef enum {
	/** The pllc is in Stable state. */
	CSL_PLLC_CLK_STABLE = CSL_PLLC_PLLCSR_STABLE_STABLE,
	/** The pllc is not in stable state. */
	CSL_PLLC_CLK_NOT_STABLE = CSL_PLLC_PLLCSR_STABLE_NOT_STABLE
}CSL_PllcOscStableState;

/** \brief  This enum describes the GO Operation Enabled state
 *
 *  It can either be in Enabled or disabled.
 */
typedef enum {
	/** The GO Operation is disabled. */
	CSL_PLLC_GO_OPRN_DISABLE = CSL_PLLC_PLLSTAT_GOSTAT_NOT_PROGRESS,
	/** The GO Operation is in progress. */
	CSL_PLLC_GO_OPRN_IN_PROGRESS = CSL_PLLC_PLLSTAT_GOSTAT_INPROG
} CSL_PllcGoStatus;

/** \brief  This enum describes the various clock's enable status  
 *
 *  It can be either enabled/disabled.
 */
typedef enum {
	/** Clock is enabled. */
	CSL_PLLC_CLK_ENABLE  = CSL_PLLC_CKEN_AUXEN_ENABLE,
	/** Clock is disabled. */
	CSL_PLLC_CLK_DISABLE = CSL_PLLC_CKEN_AUXEN_DISABLE
} CSL_PllcClkState;

/** \brief  This enum describes the clock's enable status  
 *
 *  It can be either ON/Gated.
 */
typedef enum {
	/** Clock is On. */
	CSL_PLLC_CLK_ON  = CSL_PLLC_CKSTAT_AUXON_ON,
	/** Clock is Gated. */
	CSL_PLLC_CLK_GATED = CSL_PLLC_CKSTAT_AUXON_GATED
} CSL_PllcClockStatus;

/** \brief  This enum describes the pllc dividers  
 *
 */

typedef enum {
	/* Divider for PLL mode*/
	CSL_PLLC_DIV0	= 0,
	/* Divider for SYSCLK 1*/
	CSL_PLLC_DIV1	= 1,
	/* Divider for SYSCLK 2*/
	CSL_PLLC_DIV2	= 2,
	/* Divider for SYSCLK 3*/
	CSL_PLLC_DIV3	= 3
}CSL_PllcDivNum;
				  
/** \brief  This enum describes the sysclk   
 *
 */

typedef enum {
	/* PLLC DIV1 output*/
	CSL_PLLC_SYSCLK1	= 0,
	/* PLLC DIV2 output*/
	CSL_PLLC_SYSCLK2	= 1,
	/* PLLC DIV3 output*/
	CSL_PLLC_SYSCLK3	= 2
}CSL_PllcSysClk;

/** \brief  This enum describes the states of the pllc dividers  
 *
 *  It can be either enabled/disabled.
 */
typedef enum {
	/** The pllc divider  is enabled. */
	CSL_PLLC_PLLDIV_ENABLE  = CSL_PLLC_PLLDIV0_D0EN_ENABLE,
	/** The pllc divider 0 is disabled. */
	CSL_PLLC_PLLDIV_DISABLE = CSL_PLLC_PLLDIV0_D0EN_DISABLE
} CSL_PllcDivState;

/** \brief This enum describes control commands passed to CSL_pllcHwControl()
 *
 *  This is the set of commands that are passed to CSL_pllcHwControl() with
 *  an optional argument type-casted to a void* .
 *  The arguments to be passed with each enumeration (if any) are specified
 *  next to the enumeration.
 */
typedef enum {
	/**<
	* @brief   Set PLL mode: Either bypass/ pll mode.
	*/
	CSL_PLLC_CMD_SET_MODE             = 1,
	/**<
	* @brief   Set PLL state: Either power down/ operational state.
	*/
	CSL_PLLC_CMD_SET_PLL_STATE        = 2,
	/**<
	* @brief   Set Oscillator state: Either power down/ operational state.
	*/
	CSL_PLLC_CMD_SET_OSC_STATE        = 3,
	/**<
	* @brief   Assert reset to pll: Either reset released/ asserted.
	*/
	CSL_PLLC_CMD_RESET_CONTROL        = 4,
	/**<
	* @brief   Set GO Operation.
	*/
	CSL_PLLC_CMD_SET_GO_OPN           = 5,
	/**<
	* @brief   Controls ALIGNing with the corresponding SYSCLK .
	*/
	CSL_PLLC_CMD_ALIGN_CONTROL        = 6,
	/**<
	* @brief   Set PLLM multiplier factor.
	*/
	CSL_PLLC_CMD_SET_PLLM_MULFACTOR	   = 7,
	/**<
	* @brief   Controls the given divider by enabling/disabling the divider
	 * and/or setting the divider ratio of the given divider.
	*/
	 CSL_PLLC_CMD_DIV_CONTROL         = 8,
	/**<
	* @brief   Controls the AuxCLK enable/disable.
	*/ 
	CSL_PLLC_CMD_AUCXLK_CONTROL      = 9
}CSL_PllcHwControlCmd;
    

/** \brief This enum describes queries passed to CSL_PllcGetHwStatus()
 *
 *  This is used to get the status of different operations.
 *  The arguments to be passed with each enumeration if any
 *  are specified next to the enumeration
 */
typedef enum {
	/**<
	* @brief   Queries PLL Controller Mode (bypass/ pll).
	* @param   (CSL_PllcMode*)
	*/
	CSL_PLLC_QUERY_MODE                 = 1,
	/**<
	* @brief   Queries PLL Controller State (operational/ powerdown).
	* @param   (CSL_PllcState*)
	*/
	CSL_PLLC_QUERY_STATE                = 2,
	/**<
	* @brief   Queries Oscillator Powerdown State (operational/ powerdown).
	* @param   (CSL_PllcState*)
	*/
	CSL_PLLC_QUERY_OSC_STATE            = 3,
	/**<
	* @brief   Queries PLL Controller Reset (reset released/ asserted).
	* @param   (CSL_PllcResetState*)
	*/
	CSL_PLLC_QUERY_RESET                = 4,
	/**<
	* @brief   Queries PLL Controller DISABLE (Disable released/ asserted).
	* @param   (CSL_PllcDisableState*)
	*/
	CSL_PLLC_QUERY_DISABLE              = 5,
	/**<
	* @brief   Queries Oscillator Input stable state (stable/ Not stable).
	* @param   (CSL_PllcOscStableState*)
	*/ 
	CSL_PLLC_QUERY_OSC_STABLE_STATE     = 6,
	/**<
	* @brief   Queries PLL Core Lock Status (LOCKED / UNLOCKED).
	* @param   (CSL_PllcLockState*)
	*/ 
	CSL_PLLC_QUERY_LOCK_STATE     		= 7,
	/**<
	* @brief   Queries Go Operation Enabled Status (Enabled/Disabled).
	* @param   (CSL_PllcGoState*)
	*/ 
	CSL_PLLC_QUERY_GOEN_STATE     		= 8,
	/**<
	* @brief   Queries Go transition Status (Enabled/Disabled).
	* @param   (CSL_PllcGoStatus*)
	*/ 
	CSL_PLLC_QUERY_GOSTAT     			= 9,
	/**<
	* @brief   Queries PLL Controller Multiplier multiplication factor.
	* @param   (CSL_BitMask16*)
	*/
	CSL_PLLC_QUERY_PLLM_MUL_FACTOR      = 10,
	/**<
	* @brief   Queries PLL Controller Divider  state (enabled/ disabled).
	* and its divider ratio.
	 * @param   (CSL_PllcDivCntrl*)
	*/
	CSL_PLLC_QUERY_DIVIDER_STATE        = 11,
	/**<
	* @brief   Queries the given clock (AUX) state (ON/Gated)
	* @param   (CSL_PllcClockStatus*)
	*/
	CSL_PLLC_QUERY_CLK_STATE       		= 12,
	 /**<
	* @brief   Queries the given SYSCLK clock state (ON/Gated)
	* @param   (CSL_PllcSysClkStatus*)
	*/
	CSL_PLLC_QUERY_SYSCLK_STATE       	= 13
}CSL_PllcHwStatusQuery;


typedef struct {
	/** Divider State (Enabled/Disabled) */
	CSL_PllcDivState	divEnable;
	/** Divider ratio */
	Uint32        		pllDivRatio;
} CSL_PllcDivEnable;

/** \brief  This struct describes the divider, its state and divider ratio 
 *
 *  It can be either enabled/disabled.
 */
typedef struct {
	/** Divider number (DIV0..DIV3, OD1*/
	CSL_PllcDivNum		divNum;
	CSL_PllcDivEnable	divControl; 
}CSL_PllcDivCntrl;	
	
/** \brief Hardware setup structure for PLLC
 */
typedef struct {
	/** PLLC Mode BYPASS or PLL */
	CSL_PllcMode	pllcMode;

	/** divider 0 enable/disable and its divider ratio */
	CSL_PllcDivEnable div0Enable;

	/** divider 1 enable/disable and its divider ratio */
	CSL_PllcDivEnable div1Enable;

	/** divider 2 enable/disable and its divider ratio */
	CSL_PllcDivEnable div2Enable;

	/** divider 3 enable/disable and its divider ratio */
	CSL_PllcDivEnable div3Enable;

	/** PLL Multiplier factor */
	Uint32        pllM;

	/** Setup that can be used for future implementation */
	void         *extendSetup;
} CSL_PllcHwSetup;


/** \brief Config-structure
 *
 * Used to configure the pllc using CSL_wdtHwSetupRaw()
 */
typedef struct {
	/** pllc control/status register */
	volatile Uint32 PLLCSR;

	/** pllc multiplier control register */
	volatile Uint32 PLLM;

	/** pllc divider 0 register */
	volatile Uint32 PLLDIV0;

	/** pllc divider 1 register */
	volatile Uint32 PLLDIV1;

	/** pllc divider 2 register */
	volatile Uint32 PLLDIV2;

	/** pllc divider 3 register */
	volatile Uint32 PLLDIV3;

	/** PLL Command register */
	volatile Uint32 PLLCMD;

	/** PLL Align control register */
	volatile Uint32 ALNCTL;

	/** PLL Clock enable register */
	volatile Uint32 CKEN;

} CSL_PllcConfig;


/** \brief  This structure describes the sysclk and its corresponding
 *	status of the clock.
 *
 */
typedef struct {
	CSL_PllcSysClk	sysClk;			/* SYSCLK1 to SYSCLK8 */
	CSL_PllcClockStatus	pllClkState; /* Enable/Disable */	
}CSL_PllcSysClkStatus;

/** \brief Module specific context information. Present implementation of pllc CSL
 *  doesn't have any context information.
 */
typedef struct {
	/** Context information of pllc CSL.
	*  The below declaration is just a place-holder for future implementation.
	*/
	Uint16  contextInfo;
} CSL_PllcContext;

/** \brief Module specific parameters. Present implementation of pllc CSL
 *  doesn't have any module specific parameters.
 */
typedef struct {
	/** Bit mask to be used for module specific parameters. The below
	*  declaration is just a place-holder for future implementation.
	*/
	CSL_BitMask16   flags;
} CSL_PllcParam;

/** \brief This structure contains the base-address information for the peripheral
 *  instance of the PLLC
 */
typedef struct {
	/** Base-address of the configuration registers of the peripheral
	*/
	CSL_PllcRegsOvly  regs;
} CSL_PllcBaseAddress;

/** \brief PLLC object structure
 */
typedef struct CSL_PllcObj{
	/** Pointer to the register overlay structure of the pllc */
	CSL_PllcRegsOvly  regs;
	/** Instance of pllc being referred by this object  */
	CSL_InstNum       pllcNum;
} CSL_PllcObj;


/** \brief Default values for config structure
 */
#define CSL_PLLC_CONFIG_DEFAULTS {  \
	CSL_PLLC_PLLCSR_RESETVAL,   \
	CSL_PLLC_PLLM_RESETVAL,     \
	CSL_PLLC_PLLDIV0_RESETVAL,  \
	CSL_PLLC_PLLDIV1_RESETVAL,  \
	CSL_PLLC_PLLDIV2_RESETVAL,  \
	CSL_PLLC_PLLDIV3_RESETVAL,  \
	CSL_PLLC_PLLCMD_RESETVAL,   \
	CSL_PLLC_ALNCTL_RESETVAL,   \
	CSL_PLLC_CKEN_RESETVAL      \
}

/** \brief Default hardware setup parameters
 */
#define CSL_PLLC_HWSETUP_DEFAULTS{  \
	CSL_PLLC_BYPASS,\
	{CSL_PLLC_PLLDIV_ENABLE,0x0},\
	{CSL_PLLC_PLLDIV_ENABLE,0x0},\
	{CSL_PLLC_PLLDIV_ENABLE,0x1},\
	{CSL_PLLC_PLLDIV_ENABLE,0x2},\
	CSL_PLLC_PLLM_RESETVAL,     \
	NULL                        \