[PATCH] USB: new devices for the Option driver

This patch extends the "option" driver with a few more devices, some of
which are actually connected to USB the "right" way -- as opposed to
doing it via PCMCIA and OHCI.
Signed-Off-By: Matthias Urlichs <smurf@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/serial/Kconfig

@@ -491,16 +491,22 @@ config USB_SERIAL_XIRCOM
 	  module will be called keyspan_pda.
 
 config USB_SERIAL_OPTION
-	tristate "USB Option PCMCIA serial driver"
-	depends on USB_SERIAL && USB_OHCI_HCD && PCCARD
+	tristate "USB driver for GSM modems"
+	depends on USB_SERIAL
 	help
-	  Say Y here if you want to use an Option card. This is a
-	  GSM card, controlled by three serial ports which are connected
-	  via an OHCI adapter located on a PC card.
+	  Say Y here if you have an "Option" GSM PCMCIA card
+	  (or an OEM version: branded Huawei, Audiovox, or Novatel).
+
+	  These cards feature a built-in OHCI-USB adapter and an
+	  internally-connected GSM modem. The USB bus is not
+	  accessible externally.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called option.
 
+	  If this driver doesn't recognize your device,
+	  it might be accessible via the FTDI_SIO driver.
+
 config USB_SERIAL_OMNINET
 	tristate "USB ZyXEL omni.net LCD Plus Driver (EXPERIMENTAL)"
 	depends on USB_SERIAL && EXPERIMENTAL

drivers/usb/serial/option.c

 /*
-  Option Card (PCMCIA to) USB to Serial Driver
+  USB Driver for GSM modems
 
   Copyright (C) 2005  Matthias Urlichs <smurf@smurf.noris.de>
 
@@ -28,15 +28,34 @@
   2005-09-10  v0.4.3 added HUAWEI E600 card and Audiovox AirCard
   2005-09-20  v0.4.4 increased recv buffer size: the card sometimes
                      wants to send >2000 bytes.
-  2006-04-10  v0.4.2 fixed two array overrun errors :-/
+  2006-04-10  v0.5   fixed two array overrun errors :-/
+  2006-04-21  v0.5.1 added support for Sierra Wireless MC8755
+  2006-05-15  v0.6   re-enable multi-port support
+  2006-06-01  v0.6.1 add COBRA
+  2006-06-01  v0.6.2 add backwards-compatibility stuff
+  2006-06-01  v0.6.3 add Novatel Wireless
+  2006-06-01  v0.7   Option => GSM
 
   Work sponsored by: Sigos GmbH, Germany <info@sigos.de>
 
+  This driver exists because the "normal" serial driver doesn't work too well
+  with GSM modems. Issues:
+  - data loss -- one single Receive URB is not nearly enough
+  - nonstandard flow (Option devices) and multiplex (Sierra) control
+  - controlling the baud rate doesn't make sense
+
+  This driver is named "option" because the most common device it's
+  used for is a PC-Card (with an internal OHCI-USB interface, behind
+  which the GSM interface sits), made by Option Inc.
+
+  Some of the "one port" devices actually exhibit multiple USB instances
+  on the USB bus. This is not a bug, these ports are used for different
+  device features.
 */
 
-#define DRIVER_VERSION "v0.4"
+#define DRIVER_VERSION "v0.7.0"
 #define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>"
-#define DRIVER_DESC "Option Card (PC-Card to) USB to Serial Driver"
+#define DRIVER_DESC "USB Driver for GSM modems"
 
 #include <linux/config.h>
 #include <linux/kernel.h>
@@ -77,19 +96,42 @@ static int  option_send_setup(struct usb_serial_port *port);
 #define OPTION_VENDOR_ID                0x0AF0
 #define HUAWEI_VENDOR_ID                0x12D1
 #define AUDIOVOX_VENDOR_ID              0x0F3D
+#define SIERRAWIRELESS_VENDOR_ID        0x1199
+#define NOVATELWIRELESS_VENDOR_ID       0x1410
 
 #define OPTION_PRODUCT_OLD              0x5000
 #define OPTION_PRODUCT_FUSION           0x6000
 #define OPTION_PRODUCT_FUSION2          0x6300
+#define OPTION_PRODUCT_COBRA            0x6500
 #define HUAWEI_PRODUCT_E600             0x1001
 #define AUDIOVOX_PRODUCT_AIRCARD        0x0112
+#define SIERRAWIRELESS_PRODUCT_MC8755   0x6802
+#define NOVATELWIRELESS_PRODUCT_U740    0x1400
 
 static struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION) },
 	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION2) },
+	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
 	{ USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) },
 	{ USB_DEVICE(AUDIOVOX_VENDOR_ID, AUDIOVOX_PRODUCT_AIRCARD) },
+	{ USB_DEVICE(SIERRAWIRELESS_VENDOR_ID, SIERRAWIRELESS_PRODUCT_MC8755) },
+	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID,NOVATELWIRELESS_PRODUCT_U740) },
+	{ } /* Terminating entry */
+};
+
+static struct usb_device_id option_ids1[] = {
+	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_OLD) },
+	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION) },
+	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_FUSION2) },
+	{ USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COBRA) },
+	{ USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E600) },
+	{ USB_DEVICE(AUDIOVOX_VENDOR_ID, AUDIOVOX_PRODUCT_AIRCARD) },
+	{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID,NOVATELWIRELESS_PRODUCT_U740) },
+	{ } /* Terminating entry */
+};
+static struct usb_device_id option_ids3[] = {
+	{ USB_DEVICE(SIERRAWIRELESS_VENDOR_ID, SIERRAWIRELESS_PRODUCT_MC8755) },
 	{ } /* Terminating entry */
 };
 
@@ -111,12 +153,39 @@ static struct usb_serial_driver option_3port_device = {
 		.owner =	THIS_MODULE,
 		.name =		"option",
 	},
-	.description       = "Option 3G data card",
-	.id_table          = option_ids,
+	.description       = "GSM modem (3-port)",
+	.id_table          = option_ids3,
 	.num_interrupt_in  = NUM_DONT_CARE,
 	.num_bulk_in       = NUM_DONT_CARE,
 	.num_bulk_out      = NUM_DONT_CARE,
-	.num_ports         = 1, /* 3, but the card reports its ports separately */
+	.num_ports         = 3,
+	.open              = option_open,
+	.close             = option_close,
+	.write             = option_write,
+	.write_room        = option_write_room,
+	.chars_in_buffer   = option_chars_in_buffer,
+	.throttle          = option_rx_throttle,
+	.unthrottle        = option_rx_unthrottle,
+	.set_termios       = option_set_termios,
+	.break_ctl         = option_break_ctl,
+	.tiocmget          = option_tiocmget,
+	.tiocmset          = option_tiocmset,
+	.attach            = option_startup,
+	.shutdown          = option_shutdown,
+	.read_int_callback = option_instat_callback,
+};
+
+static struct usb_serial_driver option_1port_device = {
+	.driver = {
+		.owner =	THIS_MODULE,
+		.name =		"option",
+	},
+	.description       = "GSM modem (1-port)",
+	.id_table          = option_ids1,
+	.num_interrupt_in  = NUM_DONT_CARE,
+	.num_bulk_in       = NUM_DONT_CARE,
+	.num_bulk_out      = NUM_DONT_CARE,
+	.num_ports         = 1,
 	.open              = option_open,
 	.close             = option_close,
 	.write             = option_write,
@@ -170,6 +239,9 @@ struct option_port_private {
 static int __init option_init(void)
 {
 	int retval;
+	retval = usb_serial_register(&option_1port_device);
+	if (retval)
+		goto failed_1port_device_register;
 	retval = usb_serial_register(&option_3port_device);
 	if (retval)
 		goto failed_3port_device_register;
@@ -184,6 +256,8 @@ static int __init option_init(void)
 failed_driver_register:
 	usb_serial_deregister (&option_3port_device);
 failed_3port_device_register:
+	usb_serial_deregister (&option_1port_device);
+failed_1port_device_register:
 	return retval;
 }
 
@@ -191,6 +265,7 @@ static void __exit option_exit(void)
 {
 	usb_deregister (&option_driver);
 	usb_serial_deregister (&option_3port_device);
+	usb_serial_deregister (&option_1port_device);
 }
 
 module_init(option_init);
@@ -572,13 +647,15 @@ static struct urb *option_setup_urb(struct usb_serial *serial, int endpoint,
 /* Setup urbs */
 static void option_setup_urbs(struct usb_serial *serial)
 {
-	int j;
+	int i,j;
 	struct usb_serial_port *port;
 	struct option_port_private *portdata;
 
 	dbg("%s", __FUNCTION__);
 
-	port = serial->port[0];
+
+	for (i = 0; i < serial->num_ports; i++) {
+		port = serial->port[i];
 		portdata = usb_get_serial_port_data(port);
 
 	/* Do indat endpoints first */
@@ -594,6 +671,7 @@ static void option_setup_urbs(struct usb_serial *serial)
                   	port->bulk_out_endpointAddress, USB_DIR_OUT, port,
                   	portdata->out_buffer[j], OUT_BUFLEN, option_outdat_callback);
 		}
+	}
 }
 
 static int option_send_setup(struct usb_serial_port *port)