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/drivers/staging/octeon/cvmx-helper-rgmii.h

https://bitbucket.org/cyanogenmod/android_kernel_asus_tf300t
C Header | 110 lines | 12 code | 8 blank | 90 comment | 0 complexity | 1b490dde5d90c5de888b0ed88a783096 MD5 | raw file
Possible License(s): LGPL-2.0, AGPL-1.0, GPL-2.0
  1/***********************license start***************
  2 * Author: Cavium Networks
  3 *
  4 * Contact: support@caviumnetworks.com
  5 * This file is part of the OCTEON SDK
  6 *
  7 * Copyright (c) 2003-2008 Cavium Networks
  8 *
  9 * This file is free software; you can redistribute it and/or modify
 10 * it under the terms of the GNU General Public License, Version 2, as
 11 * published by the Free Software Foundation.
 12 *
 13 * This file is distributed in the hope that it will be useful, but
 14 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
 15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
 16 * NONINFRINGEMENT.  See the GNU General Public License for more
 17 * details.
 18 *
 19 * You should have received a copy of the GNU General Public License
 20 * along with this file; if not, write to the Free Software
 21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 22 * or visit http://www.gnu.org/licenses/.
 23 *
 24 * This file may also be available under a different license from Cavium.
 25 * Contact Cavium Networks for more information
 26 ***********************license end**************************************/
 27
 28/**
 29 * @file
 30 *
 31 * Functions for RGMII/GMII/MII initialization, configuration,
 32 * and monitoring.
 33 *
 34 */
 35#ifndef __CVMX_HELPER_RGMII_H__
 36#define __CVMX_HELPER_RGMII_H__
 37
 38/**
 39 * Probe RGMII ports and determine the number present
 40 *
 41 * @interface: Interface to probe
 42 *
 43 * Returns Number of RGMII/GMII/MII ports (0-4).
 44 */
 45extern int __cvmx_helper_rgmii_probe(int interface);
 46
 47/**
 48 * Put an RGMII interface in loopback mode. Internal packets sent
 49 * out will be received back again on the same port. Externally
 50 * received packets will echo back out.
 51 *
 52 * @port:   IPD port number to loop.
 53 */
 54extern void cvmx_helper_rgmii_internal_loopback(int port);
 55
 56/**
 57 * Configure all of the ASX, GMX, and PKO regsiters required
 58 * to get RGMII to function on the supplied interface.
 59 *
 60 * @interface: PKO Interface to configure (0 or 1)
 61 *
 62 * Returns Zero on success
 63 */
 64extern int __cvmx_helper_rgmii_enable(int interface);
 65
 66/**
 67 * Return the link state of an IPD/PKO port as returned by
 68 * auto negotiation. The result of this function may not match
 69 * Octeon's link config if auto negotiation has changed since
 70 * the last call to cvmx_helper_link_set().
 71 *
 72 * @ipd_port: IPD/PKO port to query
 73 *
 74 * Returns Link state
 75 */
 76extern cvmx_helper_link_info_t __cvmx_helper_rgmii_link_get(int ipd_port);
 77
 78/**
 79 * Configure an IPD/PKO port for the specified link state. This
 80 * function does not influence auto negotiation at the PHY level.
 81 * The passed link state must always match the link state returned
 82 * by cvmx_helper_link_get(). It is normally best to use
 83 * cvmx_helper_link_autoconf() instead.
 84 *
 85 * @ipd_port:  IPD/PKO port to configure
 86 * @link_info: The new link state
 87 *
 88 * Returns Zero on success, negative on failure
 89 */
 90extern int __cvmx_helper_rgmii_link_set(int ipd_port,
 91					cvmx_helper_link_info_t link_info);
 92
 93/**
 94 * Configure a port for internal and/or external loopback. Internal loopback
 95 * causes packets sent by the port to be received by Octeon. External loopback
 96 * causes packets received from the wire to sent out again.
 97 *
 98 * @ipd_port: IPD/PKO port to loopback.
 99 * @enable_internal:
100 *                 Non zero if you want internal loopback
101 * @enable_external:
102 *                 Non zero if you want external loopback
103 *
104 * Returns Zero on success, negative on failure.
105 */
106extern int __cvmx_helper_rgmii_configure_loopback(int ipd_port,
107						  int enable_internal,
108						  int enable_external);
109
110#endif