chxge/com/xpak.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright (C) 2003-2005 Chelsio Communications.  All rights reserved.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"    /* xpak.c */

#include "cphy.h"
#include "elmer0.h"

/* ARGSUSED */
static int xpak_reset(struct cphy *cphy, int wait)
{
    return 0;
}

/* ARGSUSED */
static int xpak_interrupt_enable(struct cphy *cphy)
{
    return 0;
}

/* ARGSUSED */
static int xpak_interrupt_disable(struct cphy *cphy)
{
    return 0;
}

/* ARGSUSED */
static int xpak_interrupt_clear(struct cphy *cphy)
{
    return 0;
}

/* ARGSUSED */
static int xpak_set_loopback(struct cphy *cphy, int on)
{
    return 0;
}

/* ARGSUSED */
static int xpak_get_link_status(struct cphy *cphy, int *link_ok, int *speed,
                int *duplex, int *fc)
{
    if (link_ok)
        *link_ok = 1;
    if (speed)
        *speed = SPEED_10000;
    if (duplex)
        *duplex = DUPLEX_FULL;
    if (fc)
        *fc = PAUSE_RX | PAUSE_TX;
    return 0;
}

static void xpak_destroy(struct cphy *cphy)
{
    t1_os_free((void *)cphy, sizeof(*cphy));
}

#ifdef C99_NOT_SUPPORTED
static struct cphy_ops xpak_ops = {
     xpak_destroy,
         xpak_reset,
         xpak_interrupt_enable,
         xpak_interrupt_disable,
         xpak_interrupt_clear,
         NULL,
         NULL,
         NULL,
         NULL,
         NULL,
     xpak_set_loopback,
         NULL,
         xpak_get_link_status,
};
#else
static struct cphy_ops xpak_ops = {
    .destroy           = xpak_destroy,
    .reset             = xpak_reset,
    .interrupt_enable  = xpak_interrupt_enable,
    .interrupt_disable = xpak_interrupt_disable,
    .interrupt_clear   = xpak_interrupt_clear,
    .get_link_status   = xpak_get_link_status,
    .set_loopback      = xpak_set_loopback,
};
#endif

/* ARGSUSED */
static struct cphy *xpak_phy_create(adapter_t * adapter, int phy_addr,
                    struct mdio_ops *mdio_ops)
{
    struct cphy *cphy = t1_os_malloc_wait_zero(sizeof(*cphy));

    if (!cphy)
        return NULL;

    cphy->ops        = &xpak_ops;
    cphy->adapter    = adapter;
    cphy->mdio_read  = mdio_ops->read;
    cphy->mdio_write = mdio_ops->write;
    return cphy;
}

static int xpak_phy_reset(adapter_t *adapter)
{
    u32 val;

    (void) t1_tpi_read(adapter, A_ELMER0_GPO, &val);
    val &= ~4;
    (void) t1_tpi_write(adapter, A_ELMER0_GPO, val);
    DELAY_MS(100);

    /*
     * Errata #26 states to wait 5 seconds after reset before transceiver
     * becomes operational.
     */
    (void) t1_tpi_write(adapter, A_ELMER0_GPO, val | 4);
    DELAY_MS(5000);

    /* Now lets enable the Laser. Delay 100us
     * as defined in XPAK errata.
     */
    (void) t1_tpi_read(adapter, A_ELMER0_GPO, &val);
    val |= 0x8000;
    (void) t1_tpi_write(adapter, A_ELMER0_GPO, val);
    DELAY_US(100);
    return 0;
}

struct gphy t1_xpak_ops = {
    xpak_phy_create,
    xpak_phy_reset
};