1 files changed, 75 insertions, 0 deletions
diff --git a/os/pc/pcmciamodem.c b/os/pc/pcmciamodem.c
new file mode 100644
index 00000000..800f406c
--- /dev/null
+++ b/os/pc/pcmciamodem.c
@@ -0,0 +1,75 @@
+#include "u.h"
+#include "../port/lib.h"
+#include "mem.h"
+#include "dat.h"
+#include "fns.h"
+#include "io.h"
+#include "ureg.h"
+#include "../port/error.h"
+
+/*
+ *  PCMCIA modem.
+ *  By default, this will set it up with the port and irq of
+ *  COM2 unless a serialx=type=com line is found in plan9.ini.
+ *  The assumption is that a laptop with a pcmcia will have only
+ *  one com port.
+ */
+
+enum {
+	Maxcard=	8,
+};
+
+static char* modems[] = {
+	"IBM 33.6 Data/Fax/Voice Modem",
+	"CM-56G",			/* Xircom CreditCard Modem 56 - GlobalACCESS */
+	"KeepInTouch",
+	"CEM56",
+	"MONTANA V.34 FAX/MODEM",	/* Motorola */
+	"REM10",
+	"GSM/GPRS",
+	"AirCard 555",
+	"Gold Card Global",		/* Psion V90 Gold card */
+	"Merlin UMTS Modem",		/* Novatel card */
+	0,
+};
+
+void
+pcmciamodemlink(void)
+{
+	ISAConf isa;
+	int i, j, slot, com2used, usingcom2;
+
+	i = 0;
+	com2used = 0;
+	for(j = 0; modems[j]; j++){
+		memset(&isa, 0, sizeof(isa));
+
+		/* look for a configuration line */
+		for(; i < Maxcard; i++){
+			if(isaconfig("serial", i, &isa))
+			if(cistrcmp(isa.type, "com") == 0)
+				break;
+			memset(&isa, 0, sizeof(isa));
+		}
+
+		usingcom2 = 0;
+		if (isa.irq == 0 && isa.port == 0) {
+			if (com2used == 0) {
+				/* default is COM2 */
+				isa.irq = 3;
+				isa.port = 0x2F8;
+				usingcom2 = 1;
+			} else
+				break;
+		}
+		slot = pcmspecial(modems[j], &isa);
+		if(slot >= 0){
+			if(usingcom2)
+				com2used = 1;
+			if(ioalloc(isa.port, 8, 0, modems[j]) < 0)
+				print("%s port %lux already in use\n", modems[j], isa.port);
+			print("%s in pcmcia slot %d port 0x%lux irq %d\n",
+				modems[j], slot, isa.port, isa.irq);
+		}
+	}
+}