Initial revision

[karo-tx-redboot.git] / packages / devs / eth / phy / v2_0 / src / DM9161A.c

diff --git a/packages/devs/eth/phy/v2_0/src/DM9161A.c b/packages/devs/eth/phy/v2_0/src/DM9161A.c
new file mode 100644 (file)
index 0000000..af19dab
--- /dev/null
+++ b/packages/devs/eth/phy/v2_0/src/DM9161A.c
@@ -0,0 +1,134 @@
+//==========================================================================
+//
+//      dev/DM9161A.c
+//
+//      Ethernet transceiver (PHY) support 
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 2003 Gary Thomas
+//
+// 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.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 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.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    John Eigelaar
+// Contributors: Gary Thomas
+// Date:         2006-12-07
+// Purpose:      
+// Description:  Support for Davicom DM9161A PHY
+//              
+//
+//####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 DM9161A_BMSR 0x01
+#define DM9161A_BMSR_ANEG_COMP (1<<5)
+#define DM9161A_BMSR_LINK (1<<2)
+
+#define DM9161A_BMCR 0x00
+
+#define DM9161A_DSCSR 17
+#define DM9161A_DSCSR_100FDX (1<<15)
+#define DM9161A_DSCSR_100HDX (1<<14)
+#define DM9161A_DSCSR_10FDX (1<<13)
+#define DM9161A_DSCSR_10HDX (1<<12)
+
+static bool dm9161a_stat(eth_phy_access_t *f, int *state)
+{
+   unsigned short phy_state;
+   int tries;
+
+   *state = 0;
+   // Read negotiated state
+
+   if (_eth_phy_read(f, DM9161A_BMSR, f->phy_addr, &phy_state))
+   {
+      if ((phy_state & DM9161A_BMSR_ANEG_COMP) == 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, DM9161A_BMSR, f->phy_addr, &phy_state))
+            {
+               if ((phy_state & DM9161A_BMSR_ANEG_COMP) != 0)
+               {
+                  break;
+               }
+            }
+            CYGACC_CALL_IF_DELAY_US(1000000);   // 1 second
+            eth_phy_printf(".");
+         }
+         eth_phy_printf("\n");
+      }
+      if ((phy_state & DM9161A_BMSR_ANEG_COMP) != 0)
+      {
+         *state = 0;
+         if (!_eth_phy_read(f, DM9161A_DSCSR, f->phy_addr, &phy_state))
+            return false;
+
+         if (phy_state & 0xF000)
+         {
+           *state |= ETH_PHY_STAT_LINK; 
+         }
+         if ((phy_state & DM9161A_DSCSR_100FDX) || 
+             (phy_state & DM9161A_DSCSR_100HDX))
+         {
+            *state |= ETH_PHY_STAT_100MB; 
+         }
+         if ((phy_state & DM9161A_DSCSR_100FDX) || 
+             (phy_state & DM9161A_DSCSR_10FDX))
+         {
+            *state |= ETH_PHY_STAT_FDX; 
+         }
+
+         return (true);
+      }
+   }
+   return (false);
+}
+
+_eth_phy_dev("Davicom DM9161A", 0x0181B8A0, dm9161a_stat)