Add support for the SDL RISCom N2pci cards. Bring in the enhancements

made to the Arnet driver.

1 files changed, 133 insertions, 0 deletions

diff --git a/sys/dev/sr/if_sr_pci.c b/sys/dev/sr/if_sr_pci.c
new file mode 100644
index 0000000..27b9a4d
--- /dev/null
+++ b/sys/dev/sr/if_sr_pci.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 1996 John Hay.
+ * Copyright (c) 1996 SDL Communications, Inc.
+ * 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, 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. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id$
+ */
+
+#include "pci.h"
+#if NPCI > 0
+
+#include "sr.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+
+#include <pci/pcireg.h>
+#include <pci/pcivar.h>
+
+#ifndef BUGGY
+#define BUGGY		0
+#endif
+
+/*
+ * The must match with the real functions in if_sr.c
+ */
+extern void *srattach_pci(int unit,
+			  vm_offset_t plx_vaddr,
+			  vm_offset_t sca_vaddr);
+extern void srintr_hc(void *hc);
+
+static char *sr_pci_probe(pcici_t tag, pcidi_t type);
+static void sr_pci_attach(pcici_t config_id, int unit);
+
+static u_long src_count = NSR;
+
+struct pci_device sr_pci_driver =
+{
+	"src",
+	sr_pci_probe,
+	sr_pci_attach,
+	&src_count,
+	NULL};
+
+DATA_SET (pcidevice_set, sr_pci_driver);
+
+static char *
+sr_pci_probe(pcici_t tag, pcidi_t type)
+{
+	switch(type) {
+	case 0x55684778:
+		return ("RISCom/N2pci");
+		break;
+	case 0x55684877:
+		/*
+		 * XXX This can probably be removed sometime.
+		 */
+		return ("RISCom/N2pci (old id)");
+		break;
+	default:
+		break;
+	}
+	return (0);
+}
+
+static void
+sr_pci_attach(pcici_t config_id, int unit)
+{
+	void *hc;
+#if BUGGY > 0
+	u_int *fecr;
+#endif
+	vm_offset_t plx_vaddr, plx_paddr, sca_vaddr, sca_paddr;
+
+#if BUGGY > 0
+	printf("srp: ID %x\n", pci_conf_read(config_id, 0));
+	printf("srp: BADR0 %x\n", pci_conf_read(config_id, 0x10));
+	printf("srp: BADR1 %x\n", pci_conf_read(config_id, 0x18));
+#endif
+	if(!pci_map_mem(config_id, 0x10, &plx_vaddr, &plx_paddr)) {
+		printf("srp: map failed.\n");
+		return;
+	}
+#if BUGGY > 0
+	printf("srp: vaddr %x, paddr %x\n", plx_vaddr, plx_paddr);
+#endif
+	if(!pci_map_mem(config_id, 0x18, &sca_vaddr, &sca_paddr)) {
+		printf("srp: map failed.\n");
+		return;
+	}
+#if BUGGY > 0
+	printf("srp: vaddr %x, paddr %x\n", sca_vaddr, sca_paddr);
+	fecr = (u_int *)(sca_vaddr + 0x200);
+	printf("srp: FECR  %x\n", *fecr);
+#endif
+
+	hc = srattach_pci(unit, plx_vaddr, sca_vaddr);
+	if(!hc)
+		return;
+
+	if(!pci_map_int(config_id, srintr_hc, (void *)hc, &net_imask)) {
+		free(hc, M_DEVBUF);
+		return;
+	}
+}
+
+#endif /* NPCI > 0 */