Added some buggy PC-98 PnP cards support.

1 files changed, 40 insertions, 0 deletions

diff --git a/sys/isa/pnp.c b/sys/isa/pnp.c
index 6eff917..08b614c 100644
--- a/sys/isa/pnp.c
+++ b/sys/isa/pnp.c
@@ -91,6 +91,17 @@ struct pnp_quirk pnp_quirks[] = {
 	{ 0 }
 };
 
+#ifdef PC98
+/* Some NEC PnP cards have 9 bytes serial code. */
+static pnp_id necids[] = {
+	{0x4180a3b8, 0xffffffff, 0x00},	/* PC-9801CB-B04 (NEC8041) */
+	{0x5181a3b8, 0xffffffff, 0x46},	/* PC-9821CB2-B04(NEC8151) */
+	{0x5182a3b8, 0xffffffff, 0xb8},	/* PC-9801-XX    (NEC8251) */
+	{0x9181a3b8, 0xffffffff, 0x00},	/* PC-9801-120   (NEC8191) */
+	{0, 0, 0}
+};
+#endif
+
 #if 0
 /*
  * these entries are initialized using the autoconfig menu
@@ -742,6 +753,10 @@ pnp_isolation_protocol(device_t parent)
 	u_char *resources = 0;
 	int space = 0;
 	int error;
+#ifdef PC98
+	int n, necpnp;
+	u_char buffer[10];
+#endif
 
 	/*
 	 * Put all cards into the Sleep state so that we can clear
@@ -783,6 +798,31 @@ pnp_isolation_protocol(device_t parent)
 			 * logical devices on the card.
 			 */
 			pnp_write(PNP_SET_CSN, csn);
+#ifdef PC98
+			if (bootverbose)
+				printf("PnP Vendor ID = %x\n", id.vendor_id);
+			/* Check for NEC PnP (9 bytes serial). */
+			for (n = necpnp = 0; necids[n].vendor_id; n++) {
+				if (id.vendor_id == necids[n].vendor_id) {
+					necpnp = 1;
+					break;
+				}
+			}
+			if (necpnp) {
+				if (bootverbose)
+					printf("It seems to NEC-PnP card (%s).\n",
+					       pnp_eisaformat(id.vendor_id));
+				/*  Read dummy 9 bytes serial area. */
+				pnp_get_resource_info(buffer, 9);
+			} else {
+				if (bootverbose)
+					printf("It seems to Normal-ISA-PnP card (%s).\n",
+					       pnp_eisaformat(id.vendor_id));
+			}
+			if (bootverbose)
+				printf("Reading PnP configuration for %s.\n",
+				       pnp_eisaformat(id.vendor_id));
+#endif
 			error = pnp_read_resources(&resources,
 						   &space,
 						   &len);