151 lines
4.5 KiB
C
151 lines
4.5 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Cavium Inc. nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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* This Software, including technical data, may be subject to U.S. export control
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* laws, including the U.S. Export Administration Act and its associated
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* regulations, and may be subject to export or import regulations in other
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* countries.
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
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* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
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* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
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* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
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* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
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* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
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* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
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* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
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* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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***********************license end**************************************/
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#ifndef __CVMX_THUNDER_H__
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#define __CVMX_THUNDER_H__
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/**
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* @file
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*
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* Interface to the Thunder specific devices
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*
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* <hr>$Revision: 70030 $<hr>
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*
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define CVMX_RTC_DS1374_ADDR (0x68)
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/*
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* Read time-of-day counter.
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* This function is called internally by cvmx-rtc functions.
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*/
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uint32_t cvmx_rtc_ds1374_read(void);
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/*
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* Write time-of-day counter.
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* This function is called internally by cvmx-rtc functions.
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*/
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int cvmx_rtc_ds1374_write(uint32_t time);
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/**
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* LAN bypass modes.
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*/
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typedef enum {
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CVMX_LAN_BYPASS_OFF = 0, /**< LAN bypass is disabled, port 0 and port 1
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are always connected to Octeon */
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CVMX_LAN_BYPASS_GPIO, /**< LAN bypass controlled by GPIO only */
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CVMX_LAN_BYPASS_WATCHDOG, /**< LAN bypass controlled by watchdog (and GPIO) */
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CVMX_LAN_BYPASS_LAST /* Keep as last entry */
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} cvmx_lan_bypass_mode_t;
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/**
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* Set LAN bypass mode.
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*
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* Supported modes are:
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* - CVMX_LAN_BYPASS_OFF
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* <br>LAN ports are connected ( port 0 <--> Octeon <--> port 1 )
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*
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* - CVMX_LAN_BYPASS_GPIO
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* <br>LAN bypass is controlled by software using cvmx_lan_bypass_force() function.
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* When transitioning to this mode, default is LAN bypass enabled
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* ( port 0 <--> port 1, disconnected from Octeon ).
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*
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* - CVMX_LAN_BYPASS_WATCHDOG
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* <br>LAN bypass is inactive as long as the watchdog is kept alive.
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* The default expiration time is 1 second and the function to
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* call periodically to prevent watchdog expiration is
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* cvmx_lan_bypass_keep_alive().
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*
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* @param mode LAN bypass mode
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*
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* @return Error code, or 0 in case of success
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*/
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int cvmx_lan_bypass_mode_set(cvmx_lan_bypass_mode_t mode);
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/**
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* Return status of LAN bypass circuit.
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*
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* @return 1 if ports are in LAN bypass, or 0 if normally connected
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*/
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int cvmx_lan_bypass_is_active(void);
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/**
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* Refresh watchdog timer.
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*
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* Call periodically (less than 1 second) to prevent triggering LAN bypass.
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* The alternative cvmx_lan_bypass_keep_alive_ms() is provided for cases
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* where a variable interval is required.
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*/
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void cvmx_lan_bypass_keep_alive(void);
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/**
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* Refresh watchdog timer, setting a specific expiration interval.
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*
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* @param interval_ms Interval, in milliseconds, to next watchdog expiration.
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*/
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void cvmx_lan_bypass_keep_alive_ms(uint32_t interval_ms);
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/**
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* Control LAN bypass via software.
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*
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* @param force_bypass Force LAN bypass to active (1) or inactive (0)
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*
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* @return Error code, or 0 in case of success
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*/
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int cvmx_lan_bypass_force(int force_bypass);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __CVMX_THUNDER_H__ */
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