FINALLY: PCI support for the Lance Ethernet driver.

This code applies to several systems with integrated Ethernet
chip, for example from HP or Compaq. It should also support
PCI Ethernet cards based on the AMD PCI Lance chip.

This code has been reviewed (visually) by Paul Richards and
tested (using an ISA Lance board) by Joerg Wunsch.
Since the parameters to nearly each and every single function
had to be changed (generally from unit number to lnc_soft*),
there is some potential for buglets having crept in ...

BEWARE: If you had lnc0 configured to have the ISA probe find
your PCI Lance, then it should now be found by the PCI probe,
and should be automatically configured as pci1 (!!! note the "1").

Reviewed by:	paul, joerg

1 files changed, 97 insertions, 0 deletions

diff --git a/sys/pci/if_lnc_p.c b/sys/pci/if_lnc_p.c
new file mode 100644
index 0000000..ba97985
--- /dev/null
+++ b/sys/pci/if_lnc_p.c
@@ -0,0 +1,97 @@
+/*
+ *
+ * Copyright (c) 1996 Stefan Esser <se@freebsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice immediately at the beginning of the file, without modification,
+ *    this list of conditions, and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Absolutely no warranty of function or purpose is made by the author
+ *    Stefan Esser.
+ * 4. Modifications may be freely made to this file if the above conditions
+ *    are met.
+ *
+ *	$Id:$
+ */
+
+#include "pci.h"
+#if NPCI > 0
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/malloc.h>
+#include <sys/kernel.h>
+#include <pci/pcireg.h>
+#include <pci/pcivar.h>
+#ifdef PC98
+#include <pc98/pc98/pc98_device.h>
+#else
+#include <i386/isa/isa_device.h>
+#endif
+
+#include "lnc.h"
+
+#define PCI_DEVICE_ID_PCNet_PCI	0x20001022
+
+extern void *lnc_attach_ne2100_pci __P((int unit, unsigned iobase));
+
+static char* lnc_pci_probe __P((pcici_t tag, pcidi_t type));
+static void lnc_pci_attach __P((pcici_t config_id, int unit));
+
+static u_long lnc_pci_count = NLNC;
+
+static struct pci_device lnc_pci_driver = {
+	"lnc",
+	lnc_pci_probe,
+	lnc_pci_attach,
+	&lnc_pci_count,
+	NULL
+};
+
+DATA_SET (pcidevice_set, lnc_pci_driver);
+
+static char*
+lnc_pci_probe (pcici_t tag, pcidi_t type)
+{
+	switch(type) {
+	case PCI_DEVICE_ID_PCNet_PCI:
+		return ("PCNet/PCI Ethernet adapter");
+		break;
+	default:
+		break;
+	}
+	return (0);
+}
+
+void lncintr_sc (void*);
+
+static void
+lnc_pci_attach(config_id, unit)
+	pcici_t config_id;
+	int	unit;
+{
+	unsigned iobase;
+	void *lnc; /* device specific data for interrupt handler ... */
+
+	iobase = pci_conf_read(config_id, PCI_MAP_REG_START) & ~PCI_MAP_IO;
+
+	lnc = lnc_attach_ne2100_pci(unit, iobase);
+	if (!lnc)
+		return;
+
+	if(!(pci_map_int(config_id, lncintr_sc, (void *)lnc, &net_imask))) {
+		free (lnc, M_DEVBUF);
+		return;
+	}
+
+	return;
+}
+
+#endif /* NPCI > 0 */
+