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Date:      Fri, 16 May 1997 11:35:48 -0500 (CDT)
From:      dave adkins <adkin003@gold.tc.umn.edu>
To:        freebsd-current@freebsd.org
Subject:   if_de.c and Cogent EM100FX support
Message-ID:  <Pine.NEB.3.96.970516112503.1082A-100000@samthedog.tc.umn.edu>
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I'm including a patch of if_de.c and dc21040.h for Cogent EM100FX fiber
support. The MIISYM interface does not support scrambler and it has
a different value at srom[32]. I also enabled full duplex support. 
I'm currently running this patch in a system with an SMC9332 and
an EM100FX.

--cut here--
--- if_de.c	Tue May 13 07:19:13 1997
+++ if_de.c	Wed May 14 11:32:53 1997
@@ -1433,6 +1433,14 @@
     TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
 }
 
+static void
+tulip_21140_nomii_cogent100fxonly_media_preset(
+    tulip_softc_t * const sc)
+{
+    sc->tulip_cmdmode |= TULIP_CMD_PORTSELECT
+	|TULIP_CMD_PCSFUNCTION;
+    TULIP_CSR_WRITE(sc, csr_command, sc->tulip_cmdmode);
+}
 
 static int
 tulip_21140_evalboard_media_probe(
@@ -1606,6 +1614,49 @@
 
 
 static int
+tulip_21140_cogent_em100fx_media_probe(
+    tulip_softc_t * const sc)
+{
+    TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EM100_PINS);
+    TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EM100_INIT);
+    /* The big difference between tx and fx is no scrambler allowed  */
+    TULIP_CSR_WRITE(sc, csr_command,
+	(TULIP_CSR_READ(sc, csr_command) | TULIP_CMD_PORTSELECT |
+	TULIP_CMD_PCSFUNCTION | TULIP_CMD_MUSTBEONE) & ~TULIP_CMD_SCRAMBLER );
+    TULIP_CSR_WRITE(sc, csr_command,
+	TULIP_CSR_READ(sc, csr_command) & ~TULIP_CMD_TXTHRSHLDCTL);
+    return 1;
+}
+
+static void
+tulip_21140_cogent_em100fx_media_select(
+    tulip_softc_t * const sc)
+{
+    sc->tulip_cmdmode |= TULIP_CMD_STOREFWD|TULIP_CMD_MUSTBEONE
+	|TULIP_CMD_BACKOFFCTR | TULIP_CMD_FULLDUPLEX;
+    sc->tulip_flags |= TULIP_LINKUP;
+    TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EM100_PINS);
+    TULIP_CSR_WRITE(sc, csr_gp, TULIP_GP_EM100_INIT);
+    if ((sc->tulip_flags & TULIP_ALTPHYS) == 0)
+	sc->tulip_flags |= TULIP_PRINTMEDIA|TULIP_ALTPHYS;
+    sc->tulip_cmdmode &= ~TULIP_CMD_TXTHRSHLDCTL;
+    sc->tulip_media = TULIP_MEDIA_100BASETX;
+#ifdef BIG_PACKET
+    if (sc->tulip_if.if_mtu > ETHERMTU) {
+	TULIP_CSR_WRITE(sc, csr_watchdog, TULIP_WATCHDOG_RXDISABLE|TULIP_WATCHDOG_TXDISABLE);
+    }
+#endif
+}
+static const tulip_boardsw_t tulip_21140_cogent_em100fx_boardsw = {
+    TULIP_21140_COGENT_EM100,
+    "Cogent EM100FX ",
+    tulip_21140_cogent_em100fx_media_probe,
+    tulip_21140_cogent_em100fx_media_select,
+    tulip_21140_nomii_cogent100fxonly_media_preset
+};
+
+
+static int
 tulip_21140_znyx_zx34x_media_probe(
     tulip_softc_t * const sc)
 {
@@ -3276,6 +3327,8 @@
 	if (sc->tulip_chipid == TULIP_21140 || sc->tulip_chipid == TULIP_21140A) {
 	    if (sc->tulip_rombuf[32] == TULIP_COGENT_EM100_ID)
 		sc->tulip_boardsw = &tulip_21140_cogent_em100_boardsw;
+	    else if ( sc->tulip_rombuf[32] == TULIP_COGENT_EM100FX_ID)
+		sc->tulip_boardsw = &tulip_21140_cogent_em100fx_boardsw;
 	}
     } else if (sc->tulip_hwaddr[0] == TULIP_OUI_ZNYX_0
 	    && sc->tulip_hwaddr[1] == TULIP_OUI_ZNYX_1
--- dc21040.h	Wed May  7 07:22:36 1997
+++ dc21040.h	Wed May 14 09:55:32 1997
@@ -294,6 +294,7 @@
 #define	TULIP_OUI_COGENT_1		0x00
 #define	TULIP_OUI_COGENT_2		0x92
 #define	TULIP_COGENT_EM100_ID		0x12
+#define	TULIP_COGENT_EM100FX_ID		0x15  /* 100BaseFX ID */
 
 
 /*
--cut-here--

dave adkins
adkin003@gold.tc.umn.edu
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