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//==========================================================================
//
// ics189x.c
//
// Ethernet transceiver (PHY) support
//
//==========================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 2005 Free Software Foundation, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later
// version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License
// along with eCos; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// As a special exception, if other files instantiate templates or use
// macros or inline functions from this file, or you compile this file
// and link it with other works to produce a work based on this file,
// this file does not by itself cause the resulting work to be covered by
// the GNU General Public License. However the source code for this file
// must still be made available in accordance with section (3) of the GNU
// General Public License v2.
//
// This exception does not invalidate any other reasons why a work based
// on this file might be covered by the GNU General Public License.
// -------------------------------------------
// ####ECOSGPLCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): gthomas
// Contributors: Jay Foster
// Date: 2006-03-17
// Purpose:
// Description: Support for ethernet ICS 189x PHYs
//
//
//####DESCRIPTIONEND####
//
//==========================================================================
#include <pkgconf/system.h>
#include <pkgconf/devs_eth_phy.h>
#include <cyg/infra/cyg_type.h>
#include <cyg/hal/hal_arch.h>
#include <cyg/hal/drv_api.h>
#include <cyg/hal/hal_if.h>
#include <cyg/hal/hal_tables.h>
#include <cyg/io/eth_phy.h>
#include <cyg/io/eth_phy_dev.h>
#define Bit(n) (1<<(n))
static bool ics189x_stat(eth_phy_access_t *f, int *state)
{
unsigned short phy_state;
int tries;
// Read negotiated state from the Quick Poll Detailed Status Register
if (_eth_phy_read(f, 17, f->phy_addr, &phy_state))
{
if ((phy_state & Bit(4)) == 0)
{
eth_phy_printf("... waiting for auto-negotiation");
for (tries = 0; tries < CYGINT_DEVS_ETH_PHY_AUTO_NEGOTIATION_TIME; tries++)
{
if (_eth_phy_read(f, 17, f->phy_addr, &phy_state))
{
if ((phy_state & Bit(4)) != 0)
{
break;
}
}
CYGACC_CALL_IF_DELAY_US(1000000); // 1 second
eth_phy_printf(".");
}
eth_phy_printf("\n");
}
if ((phy_state & Bit(4)) != 0)
{
*state = 0;
if (phy_state & Bit(0))
*state |= ETH_PHY_STAT_LINK;
if (phy_state & Bit(14))
*state |= ETH_PHY_STAT_FDX;
if (phy_state & Bit(15))
*state |= ETH_PHY_STAT_100MB;
return true;
}
}
return false;
}
#ifdef CYGHWR_DEVS_ETH_PHY_ICS1890
_eth_phy_dev("ICS 1890", 0x0015F422, ics189x_stat) // 1st general release
_eth_phy_dev("ICS 1890", 0x0015F423, ics189x_stat) // 1890 "J" release
#endif
#ifdef CYGHWR_DEVS_ETH_PHY_ICS1892
_eth_phy_dev("ICS 1892", 0x0015F430, ics189x_stat)
#endif
#ifdef CYGHWR_DEVS_ETH_PHY_ICS1893
_eth_phy_dev("ICS 1893", 0x0015F441, ics189x_stat)
#endif
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