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/***********************license start***************
* Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Cavium Networks nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
* This Software, including technical data, may be subject to U.S. export control
* laws, including the U.S. Export Administration Act and its associated
* regulations, and may be subject to export or import regulations in other
* countries.
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
***********************license end**************************************/
#ifndef __CVMX_THUNDER_H__
#define __CVMX_THUNDER_H__
/**
* @file
*
* Interface to the Thunder specific devices
*
* <hr>$Revision: 49448 $<hr>
*
*/
#ifdef __cplusplus
extern "C" {
#endif
#define CVMX_RTC_DS1374_ADDR (0x68)
/*
* Read time-of-day counter.
* This function is called internally by cvmx-rtc functions.
*/
uint32_t cvmx_rtc_ds1374_read(void);
/*
* Write time-of-day counter.
* This function is called internally by cvmx-rtc functions.
*/
int cvmx_rtc_ds1374_write(uint32_t time);
/**
* LAN bypass modes.
*/
typedef enum {
CVMX_LAN_BYPASS_OFF = 0, /**< LAN bypass is disabled, port 0 and port 1
are always connected to Octeon */
CVMX_LAN_BYPASS_GPIO, /**< LAN bypass controlled by GPIO only */
CVMX_LAN_BYPASS_WATCHDOG, /**< LAN bypass controlled by watchdog (and GPIO) */
CVMX_LAN_BYPASS_LAST /* Keep as last entry */
} cvmx_lan_bypass_mode_t;
/**
* Set LAN bypass mode.
*
* Supported modes are:
* - CVMX_LAN_BYPASS_OFF
* <br>LAN ports are connected ( port 0 <--> Octeon <--> port 1 )
*
* - CVMX_LAN_BYPASS_GPIO
* <br>LAN bypass is controlled by software using cvmx_lan_bypass_force() function.
* When transitioning to this mode, default is LAN bypass enabled
* ( port 0 <--> port 1, disconnected from Octeon ).
*
* - CVMX_LAN_BYPASS_WATCHDOG
* <br>LAN bypass is inactive as long as the watchdog is kept alive.
* The default expiration time is 1 second and the function to
* call periodically to prevent watchdog expiration is
* cvmx_lan_bypass_keep_alive().
*
* @param mode LAN bypass mode
*
* @return Error code, or 0 in case of success
*/
int cvmx_lan_bypass_mode_set(cvmx_lan_bypass_mode_t mode);
/**
* Return status of LAN bypass circuit.
*
* @return 1 if ports are in LAN bypass, or 0 if normally connected
*/
int cvmx_lan_bypass_is_active(void);
/**
* Refresh watchdog timer.
*
* Call periodically (less than 1 second) to prevent triggering LAN bypass.
* The alternative cvmx_lan_bypass_keep_alive_ms() is provided for cases
* where a variable interval is required.
*/
void cvmx_lan_bypass_keep_alive(void);
/**
* Refresh watchdog timer, setting a specific expiration interval.
*
* @param interval_ms Interval, in milliseconds, to next watchdog expiration.
*/
void cvmx_lan_bypass_keep_alive_ms(uint32_t interval_ms);
/**
* Control LAN bypass via software.
*
* @param force_bypass Force LAN bypass to active (1) or inactive (0)
*
* @return Error code, or 0 in case of success
*/
int cvmx_lan_bypass_force(int force_bypass);
#ifdef __cplusplus
}
#endif
#endif /* __CVMX_THUNDER_H__ */
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