openbcm

falcon_tsc_functions.h (19268B)

---

 /****************************************************************************
 * File Name  :  falcon_tsc_functions.h
 * Created On :  29/04/2013
 * Created By :  Kiran Divakar
 * Description:  Header file with API functions for Serdes IPs
 *
 * This license is set out in https://raw.githubusercontent.com/Broadcom-Network-Switching-Software/OpenBCM/master/Legal/LICENSE file.
 * 
 * Copyright 2007-2019 Broadcom Inc. All rights reserved.
 * No portions of this material may be reproduced in any form without
 * the written permission of:
 *
 *     Broadcom Corporation
 *     5300 California Avenue
 *     Irvine, CA  92617
 *
 * All information contained in this document is Broadcom Corporation
 * company private proprietary, and trade secret.
  *//**
 * @file
 * Protoypes of all API functions for engineering use
 *//*************************************************************************/
 
 
 
 #ifndef FALCON_TSC_API_FUNCTIONS_H
 #define FALCON_TSC_API_FUNCTIONS_H
 #include <phymod/phymod.h>
 
 /* include all .h files, even though some are redundant */
 
 #include "falcon_tsc_usr_includes.h"
 
 #include "falcon_tsc_ipconfig.h"
 #include "falcon_tsc_dependencies.h"
 #include "falcon_tsc_interface.h"
 #include "falcon_tsc_debug_functions.h"
 #include "falcon_tsc_common.h"
 #include "falcon_api_uc_common.h"
 #include "common/srds_api_uc_common.h"
 
 #include "falcon_tsc_field_access.h"
 #include "falcon_tsc_enum.h"
 #include "common/srds_api_err_code.h"
 #include "falcon_tsc_internal.h"
 
 
 
 
 /**
  * Error-trapping macro.
  *
  * In other then SerDes-team post-silicon evaluation builds, simply yields
  * the error code supplied as an argument, without further action.
  */
 #define _error(err_code) _print_err_msg(err_code)
 
 /**@}*/
 
 
 
 /************************************************************************//**
 * @name Error-Code Storage Addresses.
 *
 * Used by error-checking expression-wrapper macros.  Expands to the address
 * where the macros are meant to store the error codes on which they operate,
 * which depends on the target core and type of executable image being built.
 *
 * These are defined well ahead of the error-checking macros themselves to
 * facilitate definition of RAM- and register-access macros generally used
 * in their argyments.
 *//*************************************************************************/
 /**@{*/
 
 
 /**
  * Error-code storage address.
  *
  * This is a standard API build that directs error-checking expression-wrapper
  * macros to use a block-local error codes for efficient. local optimization.
  */
 #define __ERR &__err
 
 /**@}*/
 
 
 
 /************************************************************************//**
 * @name Register Access Macro Inclusions
 *
 * All cores provide access to hardware control/status registers.
 *//*************************************************************************/
 /**@{*/
 
 
 
 /**
  * This build includes register access macros for the FALCON/TSC core.
  */
 #include "falcon_tsc_fields.h"
 
 
 
 
 /**@}*/
 
 
 
 /************************************************************************//**
 * @name RAM Access Macro Inclusions
 *
 * Some cores also provide access to firmware control/status RAM variables.
 *//*************************************************************************/
 /**@{*/
 
 /**
  * This build includes macros to access Falcon and/or Falcon2 microcode RAM
  * variables.
  */
 #include "falcon_api_uc_vars_rdwr_defns.h"
 
 /**@}*/
 
 
 
 /************************************************************************//**
 * @name Direct RAM Access
 *
 * Cores/chips with a built-in microcontroller afford direct, memory-mapped
 * access to the firmware control/status RAM variables.
 *//*************************************************************************/
 /**@{*/
 
 /** Base of core variable block, FALCON/FALCON2 variant. */
 #define CORE_VAR_RAM_BASE (0x400)
 /** Base of lane variable block, FALCON/FALCON2 variant. */
 #define LANE_VAR_RAM_BASE (0x420)
 /** Size of lane variable block, FALCON/FALCON2 variant. */
 #define LANE_VAR_RAM_SIZE (0x130)
 #define CORE_VAR_RAM_SIZE (0x40)
 
 /**@}*/
 
 
 
 /************************************************************************//**
 * @name Diagnostic Sampling
  *//*************************************************************************/
 /**@{*/
 
 #ifdef STANDALONE_EVENT
 #define DIAG_MAX_SAMPLES (64)
 #else
 /**
  * Diagnostic sample set size, FALCON/FALCON2 variant.
  *
  * Applies to collections of BER measurements, eye margins, etc.
  */
 #define DIAG_MAX_SAMPLES (64)
 
 #endif
 
 /**@}*/
 
 
 
 /************************************************************************//**
 * @name Error-Checking Expression Wrappers
 *
 * These macros simplify checking and forwarding of error codes returned
 * either directly or indirectly in the context of functions that themselves
 * return error codes directly or indirectly.
 *
 * All expand to unterminated statements and dereference `__ERR' (defined as
 * a macro in the same header) to access either private, block-internal error
 * codes (`__err') or a common error-code cache (e.g. `global_err_code' in
 * SerDes team post-silicon evaluation builds).
 *
 * Neither `__err' nor `__ERR' should be used directly outside the API; and
 * their names may change to comply with the C Language standard reservation
 * of identifiers beginning with `__' for use by compiler implementers.
 *
 * Great care is taken to ensure not only that error returns are checked but
 * that use of an error-code cache (as in SerDes team post-silicon evaluation
 * builds) does not cause "unused variable" warnings.
 *//*************************************************************************/
 /**@{*/
 
 /**
  * Error-check a function call, returning error codes returned.
  *
  * Evaluates an expression (typically function call), stores its value into
  * `*(__ERR)' and returns it from a containing function if it is unequal to
  * `ERR_CODE_NONE'.
  *
  * EFUN() is intended for use in functions returning error codes directly to
  * check calls to functions also returning error codes directly, e.g.:
  *
  *     err_code_t foo(...) // remaining arguments elided
  *     {
  *         // ...
  *         EFUN(wrc_core_s_rstb(0x0));
  *         // ...
  *         return ERR_CODE_NONE;
  *     }
  */
 
 #define EFUN(expr)				  \
 	do  {					  \
 		err_code_t __err;		  \
 		*(__ERR) = (expr);		  \
 		if (*(__ERR) != ERR_CODE_NONE)	  \
 			return _error(*(__ERR));  \
 		(void)__err;			  \
 	}   while (0)
 
 /**
  * Error-check a statement, returning error codes forwarded.
  *
  * Evaluates an expression (typically unterminated statement) that may modify
  * `*(__ERR)' and returns it from a containing function if it is unequal to
  * `ERR_CODE_NONE'.
  *
  * ESTM() is intended for use in functions returning error codes directly to
  * check calls to functions returning error codes indirectly, e.g.:
  *
  *     err_code_t foo(...) // remaining arguments elided
  *     {
  *         uint8_t rst;
  *         // ...
  *         ESTM(rst = rdc_core_s_rstb());
  *         // ...
  *         return ERR_CODE_NONE;
  *     }
  */
 
 #define ESTM(expr)				  \
 	do  {					  \
 		err_code_t __err;		  \
 		*(__ERR) = ERR_CODE_NONE;	  \
 		(expr);				  \
 		if (*(__ERR) != ERR_CODE_NONE)	  \
 			return _error(*(__ERR));  \
 		(void)__err;			  \
 	}   while (0)
 
 /**
  * Error-check a function call, defaulting when forwarding error codes
  * returned.
  *
  * In a function taking an argument `err_code_t *err_code_p' in lieu of
  * returning an error code directly, evaluates an expression (typically
  * function call), stores its value into `*(__ERR)', combines this (bitwise
  * inclusive ore) into `*(err_code_p)', and returns a default value if either
  * `*(__ERR)' or `*(err_code_p)' is not `ERR_CODE_NONE'.
  *
  * EPFUN2() is intended for use in functions returning error codes indirectly
  * to check calls to functions returning error codes directly, e.g.:
  *
  *     uint8_t foo(err_code_t *err_code_p, ...) // remaining arguments elided
  *     {
  *         uint8_t result = 0x0;
  *         // ...
  *         EPFUN2(wrc_core_s_rstb(0x0), 0x1);
  *         // ...
  *         return result;
  *     }
  */
 
 #define EPFUN2(expr, on_err)				 \
 	do  {						 \
 		err_code_t __err;			 \
 		*(__ERR) = (expr);			 \
 		*(err_code_p) |= *(__ERR);		 \
 		if ((*(err_code_p) != ERR_CODE_NONE)	 \
 		    || (*(__ERR)      != ERR_CODE_NONE)) \
 			return (on_err);		 \
 		(void)__err;				 \
 	}   while (0)
 
 /**
  * Error-check a statement, defaulting when forwarding error codes forwarded.
  *
  * In a function taking an argument `err_code_t *err_code_p' in lieu of
  * returning an error code directly, evaluates an expression (typically
  * unterminated statement), stores its value into `*(__ERR)', combines this
  * (bitwise inclusive ore) into `*(err_code_p)', and returns a default value
  * if either `*(__ERR)' or `*(err_code_p)' is not `ERR_CODE_NONE'.
  *
  * EPSTM2() is intended for use in functions returning error codes indirectly
  * to check calls to functions also returning error codes indirectly, e.g.:
  *
  *     uint8_t foo(err_code_t *err_code_p, ...) // remaining arguments elided
  *     {
  *         uint8_t result;
  *         // ...
  *         EPSTM(result = rdc_core_s_rstb(), 0x1);
  *         // ...
  *         return result;
  *     }
  */
 
 #define EPSTM2(expr, on_err)				 \
 	do  {						 \
 		err_code_t __err;			 \
 		*(__ERR) = ERR_CODE_NONE;		 \
 		(expr);					 \
 		*(err_code_p) |= *(__ERR);		 \
 		if ((*(err_code_p ) != ERR_CODE_NONE)	 \
 		    || (*(__ERR)      != ERR_CODE_NONE)) \
 			return (on_err);		 \
 		(void)__err;				 \
 	}   while (0)
 
 /**
  * Error-check a function call, defaulting to zero when forwarding error codes
  * returned.
  *
  * Supplies a default value of zero to EPFUN2() to reduce clutter in the most
  * common case.
  *
  * EPFUN() is intended for use in functions returning error codes indirectly
  * to check calls to functions returning error codes directly, e.g.:
  *
  *     uint8_t foo(err_code_t *err_code_p, ...) // remaining arguments elided
  *     {
  *         uint8_t result;  // determined below, detail elided
  *         // ...
  *         EPFUN(wrc_core_s_rstb(0x0));
  *         // ...
  *         return result;
  *     }
  */
 
 #define EPFUN(expr) EPFUN2((expr), 0)
 
 /**
  * Error-check a statement, defaulting to zero when forwarding error codes
  * forwarded.
  *
  * Supplies a default value of zero to EPSTM2() to reduce clutter in the most
  * common case.
  *
  * EPSTM() is intended for use in functions returning error codes indirectly
  * to check calls to functions also returning error codes indirectly, e.g.:
  *
  *     uint8_t foo(err_code_t *err_code_p, ...) // remaining arguments elided
  *     {
  *         uint8_t result;
  *         // ...
  *         EPSTM(result = rdc_core_s_rstb());
  *         // ...
  *         return result;
  *     }
  */
 
 #define EPSTM(expr) EPSTM2((expr), 0)
 
 /**
  * Invoke a function with automatic return of error on NULL result.
  *
  * ENULL() is intended for use in functions returning error codes directly to
  * check calls to functions returning pointers, e.g.:
  *
  *     err_code_t foo(...) // remaining arguments elided
  *     {
  *         // ...
  *         ENULL(strchr("foo", 'q'));
  *         // ...
  *         return ERR_CODE_NONE;
  *     }
  */
 #define ENULL(expr) \
 	EFUN((((void*)0 != (expr)) ? ERR_CODE_NONE : ERR_CODE_BAD_PTR_OR_INVALID_INPUT))
 
 /**
  * Invoke a function with automatic forward of error on NULL result.
  *
  * EPNULL() is intended for use in functions returning error codes indirectly
  * to check calls to functions returning pointers, e.g.:
  *
  *     uint8_t foo(err_code_t *err_code_p, ...) // remaining arguments elided
  *     {
  *         uint8_t result;  // determined below, detail elided
  *         // ...
  *         EPNULL(strchr(foo, 'q'));
  *         // ...
  *         return result;
  *     }
  */
 #define EPNULL(expr) \
 	EPFUN((((void*)0 != (expr)) ? ERR_CODE_NONE : ERR_CODE_BAD_PTR_OR_INVALID_INPUT))
 
 /**
  * Invoke USR_PRINTF(()) with non-error-code-generating arguments.
  *
  * Note that the single argument is a parenthesized argument list to be
  * passed to USR_PRINTF(()).
  *
  * EFUN_PRINTF(()) is intended for use in functions returning error codes
  * directly, with an argument list the elements of which do not generate
  * error codes of any kind, e.g.:
  *
  *     err_code_t foo(...) // remaining arguments elided
  *     {
  *         // ...
  *         EFUN_PRINTF(("%u", 1));
  *         // ...
  *         return ERR_CODE_NONE;
  *     }
  */
 #define EFUN_PRINTF(paren_arg_list) USR_PRINTF(paren_arg_list)
 
 /**
  * Invoke USR_PRINTF(()) with error-code-generating arguments that would
  * otherwise be handled by ESTM().
  *
  * Note that the single argument is a parenthesized argument list to be
  * passed to USR_PRINTF(()).
  *
  * EFUN_PRINTF(()) is intended for use in functions returning error codes
  * directly, with an argument list the elements of which may generate error
  * codes indirectly, e.g.:
  *
  *     err_code_t foo(...) // remaining arguments elided
  *     {
  *         // ...
  *         ESTM_PRINTF(("%u", rdc_core_s_rstb()));
  *         // ...
  *         return ERR_CODE_NONE;
  *     }
  */
 #define ESTM_PRINTF(paren_arg_list)		  \
 	do  {					  \
 		err_code_t __err;		  \
 		*(__ERR) = ERR_CODE_NONE;	  \
 		USR_PRINTF(paren_arg_list);	  \
 		if (*(__ERR) != ERR_CODE_NONE)	  \
 			return _error(*(__ERR));  \
 		(void)__err;			  \
 	}   while (0)
 
 /**
  * Invoke possibly-remapped 'memset()' and, if it returns NULL, force an
  * error return.
  *
  * Ordinarily, standard implementations of 'memset' will return NULL only if
  * passed a NULL destination address, and *may already* have overwritten an
  * inappropriate address range before returning:  nevertheless, a specialized
  * implementation could use a NULL return to indicate other failures.  In
  * either case, execution should not be allowed to proceed on NULL return.
  */
 #define ENULL_MEMSET(mem, val, num) ENULL((USR_MEMSET((mem), (val), (num))))
 
 /**
  * Invoke possibly-remapped 'memset()' and, if it returns NULL, force an
  * error to be forwarded.
  *
  * Ordinarily, standard implementations of 'memset' will return NULL only if
  * passed a NULL destination address, and *may already* have overwritten an
  * inappropriate address range before returning:  nevertheless, a specialized
  * implementation could use a NULL return to indicate other failures.  In
  * either case, execution should not be allowed to proceed on NULL return.
  */
 #define EPNULL_MEMSET(mem, val, num) EPNULL((USR_MEMSET((mem), (val), (num))))
 
 /**
  * Invoke possibly-remapped 'strcpy()' and, if it returns NULL, force an
  * error return.
  *
  * Ordinarily, standard implementations of 'strcpy' will return NULL only if
  * passed a NULL destination address, and *may already* have overwritten an
  * inappropriate address range before returning:  nevertheless, a specialized
  * implementation could use a NULL return to indicate other failures.  In
  * either case, execution should not be allowed to proceed on NULL return.
  */
 #define ENULL_STRCPY(dst, src) ENULL((USR_STRCPY((dst), (src))))
 
 /**
  * Invoke possibly-remapped 'strcpy()' and, if it returns NULL, force an
  * error to be forwarded.
  *
  * Ordinarily, standard implementations of 'strcpy' will return NULL only if
  * passed a NULL destination address, and *may already* have overwritten an
  * inappropriate address range before returning:  nevertheless, a specialized
  * implementation could use a NULL return to indicate other failures.  In
  * either case, execution should not be allowed to proceed on NULL return.
  */
 #define EPNULL_STRCPY(dst, src) EPNULL((USR_STRCPY((dst), (src))))
 
 /**
  * Invoke possibly-remapped 'strcpy()' and, if it returns NULL, force an
  * error return.
  *
  * Ordinarily, standard implementations of 'strncpy' will return NULL only if
  * passed a NULL destination address, and *may already* have overwritten an
  * inappropriate address range before returning:  nevertheless, a specialized
  * implementation could use a NULL return to indicate other failures.  In
  * either case, execution should not be allowed to proceed on NULL return.
  */
 #define ENULL_STRNCAT(dst, src, size) ENULL((USR_STRNCAT((dst), (src), (size))))
 
 /**
  * Invoke possibly-remapped 'strcpy()' and, if it returns NULL, force an
  * error to be forwarded.
  *
  * Ordinarily, standard implementations of 'strncpy' will return NULL only if
  * passed a NULL destination address, and *may already* have overwritten an
  * inappropriate address range before returning:  nevertheless, a specialized
  * implementation could use a NULL return to indicate other failures.  In
  * either case, execution should not be allowed to proceed on NULL return.
  */
 #define EPNULL_STRNCAT(dst, src, size) EPNULL((USR_STRNCAT((dst), (src), (size))))
 
 /**@}*/
 
 /************************************************************************//**
 * @name Display Utility Macros
 *//*************************************************************************/
 /**@{*/
 
 /** Display a signed integer variable. */
 #define DISP(x) ESTM_PRINTF(("%s = %d\n", # x, x))
 
 /** Display an unsigned integer variable. */
 #define DISPU(x) ESTM_PRINTF(("%s = %u\n", # x, x))
 
 /** Display a floating point variable. */
 #define DISPF(x) ESTM_PRINTF(("%s = %f\n", # x, x))
 
 /** Display an integer variable in hex. */
 #define DISPX(x) ESTM_PRINTF(("%s = %x\n", # x, x))
 
 /** Read and display the value of a lane register field in decimal. */
 #define DISP_REG(x) ESTM_PRINTF(("%s = %d\n", # x, rd_ ## x ## ()))
 
 /** Read and display the value of a lane register field in hex. */
 #define DISP_REGX(x) ESTM_PRINTF(("%s = %x\n", # x, rd_ ## x ## ()))
 
 /** Read and display the value of a core register field in hex. */
 #define DISP_REGC(x) ESTM_PRINTF(("%s = %x\n", # x, rdc_ ## x ## ()))
 
 /** Display a single member of a lane struct. */
 #define DISP_LN_VARS(name, param, format)			   \
 	do {							   \
 		ESTM_PRINTF(("%-16s\t", name));			   \
 		for (i = 0; i < num_lanes; i++) {		   \
 			ESTM_PRINTF((format, (lane_st[i].param))); \
 		}						   \
 		EFUN_PRINTF(("\n"));				   \
 	}   while (0)
 
 /** Display two members of a lane struct. */
 #define DISP_LNQ_VARS(name, param1, param2, format)					 \
 	do {										 \
 		ESTM_PRINTF(("%-16s\t", name));						 \
 		for (i = 0; i < num_lanes; i++) {					 \
 			ESTM_PRINTF((format, (lane_st[i].param1), (lane_st[i].param2))); \
 		}									 \
 		EFUN_PRINTF(("\n"));							 \
 	}   while (0)
 
 /**@}*/
 
 /************************************************************************//**
 * @name Arithmetic Utility Macros
 *//*************************************************************************/
 /**@{*/
 
 /**
  * Clockwise difference between phase counters.
  */
 #define dist_cw(a, b) (((a) <= (b)) ? ((b) - (a)) : ((uint16_t)256 - (a) + (b)))
 
 /**
  * Counter-clockwise difference between phase counters
  */
 #define dist_ccw(a, b) (((a) >= (b)) ? ((a) - (b)) : ((uint16_t)256 + (a) - (b)))
 
 /**
  * Lesser of two expressions.
  *
  * @warning
  *
  *    May evaluate the selected expression twice.
  */
 #define _min(a, b) (((a) > (b)) ? (b) : (a))
 
 /**
  * Greater of two expressions.
  *
  * @warning
  *
  *    May evaluate the selected expression twice.
  */
 #define _max(a, b) (((a) > (b)) ? (a) : (b))
 
 /**
  * Absolute value of an expression.
  *
  * @warning
  *
  *    May evaluate the given expression twice.
  */
 #define _abs(a) (((a) > 0) ? (a) : (-(a)))
 
 /**@}*/
 #endif