USB: sierra: Add TRU-Install (c) Support

This patch adds compatibility with Sierra Wireless' new TRU-Install
feature. Future devices that use this feature will not work unless this
patch has been applied.

Signed-off-by: Kevin Lloyd <linux@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 78 insertions, 20 deletions

diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index e7db20343d1a..c137c8962b9f 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -1,7 +1,7 @@
 /*
   USB Driver for Sierra Wireless
 
-  Copyright (C) 2006  Kevin Lloyd <linux@sierrawireless.com>
+  Copyright (C) 2006, 2007  Kevin Lloyd <linux@sierrawireless.com>
 
   IMPORTANT DISCLAIMER: This driver is not commercially supported by
   Sierra Wireless. Use at your own risk.
@@ -12,10 +12,9 @@
 
   Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de>
   Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org>
-
 */
 
-#define DRIVER_VERSION "v.1.0.6"
+#define DRIVER_VERSION "v.1.2.4b"
 #define DRIVER_AUTHOR "Kevin Lloyd <linux@sierrawireless.com>"
 #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems"
 
@@ -28,6 +27,71 @@
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
 
+#define SWIMS_USB_REQUEST_SetMode       0x0B
+#define SWIMS_USB_REQUEST_TYPE_SetMode  0x40
+#define SWIMS_USB_INDEX_SetMode         0x0000
+#define SWIMS_SET_MODE_Modem            0x0001
+
+/* per port private data */
+#define N_IN_URB        4
+#define N_OUT_URB       4
+#define IN_BUFLEN       4096
+
+static int debug;
+
+enum devicetype {
+        DEVICE_3_PORT =         0,
+        DEVICE_1_PORT =         1,
+        DEVICE_INSTALLER =      2,
+};
+
+int sierra_set_power_state(struct usb_device *udev, __u16 swiState)
+{
+        int result;
+        dev_dbg(&udev->dev, "%s", "SET POWER STATE");
+        result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+                        0x00,                   /* __u8 request      */
+                        0x40,                   /* __u8 request type */
+                        swiState,               /* __u16 value       */
+                        0,                      /* __u16 index       */
+                        NULL,                   /* void *data        */
+                        0,                      /* __u16 size        */
+                        USB_CTRL_SET_TIMEOUT);  /* int timeout       */
+        return result;
+}
+
+int sierra_set_ms_mode(struct usb_device *udev, __u16 eSocMode)
+{
+        int result;
+        dev_dbg(&udev->dev, "%s", "DEVICE MODE SWITCH");
+        result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+                        SWIMS_USB_REQUEST_SetMode,      /* __u8 request      */
+                        SWIMS_USB_REQUEST_TYPE_SetMode, /* __u8 request type */
+                        eSocMode,                       /* __u16 value       */
+                        SWIMS_USB_INDEX_SetMode,        /* __u16 index       */
+                        NULL,                           /* void *data        */
+                        0,                              /* __u16 size        */
+                        USB_CTRL_SET_TIMEOUT);          /* int timeout       */
+        return result;
+}
+
+int sierra_probe(struct usb_interface *iface, const struct usb_device_id *id)
+{
+        int result;
+        struct usb_device *udev;
+
+        udev = usb_get_dev(interface_to_usbdev(iface));
+
+        /* Check if in installer mode */
+        if (id->driver_info == DEVICE_INSTALLER) {
+                dev_dbg(&udev->dev, "%s", "FOUND DEVICE(SW)\n");
+                result = sierra_set_ms_mode(udev, SWIMS_SET_MODE_Modem);
+                /*We do not want to bind to the device when in installer mode*/
+                return -EIO;
+        }
+
+        return usb_serial_probe(iface, id);
+}
 
 static struct usb_device_id id_table [] = {
         { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
@@ -43,8 +107,10 @@ static struct usb_device_id id_table [] = {
         { USB_DEVICE(0x1199, 0x6812) }, /* Sierra Wireless MC8775 */
         { USB_DEVICE(0x1199, 0x6820) }, /* Sierra Wireless AirCard 875 */
 
-        { USB_DEVICE(0x1199, 0x0112) }, /* Sierra Wireless AirCard 580 */
-        { USB_DEVICE(0x0F3D, 0x0112) }, /* AirPrime/Sierra PC 5220 */
+        { USB_DEVICE(0x1199, 0x0112), .driver_info = DEVICE_1_PORT }, /* Sierra Wireless AirCard 580 */
+        { USB_DEVICE(0x0F3D, 0x0112), .driver_info = DEVICE_1_PORT }, /* Airprime/Sierra PC 5220 */
+
+        { USB_DEVICE(0x1199, 0x0FFF), .driver_info = DEVICE_INSTALLER},
         { }
 };
 MODULE_DEVICE_TABLE(usb, id_table);
@@ -56,6 +122,7 @@ static struct usb_device_id id_table_1port [] = {
 };
 
 static struct usb_device_id id_table_3port [] = {
+        /* CDMA Devices */
         { USB_DEVICE(0x1199, 0x0017) }, /* Sierra Wireless EM5625 */
         { USB_DEVICE(0x1199, 0x0018) }, /* Sierra Wireless MC5720 */
         { USB_DEVICE(0x1199, 0x0218) }, /* Sierra Wireless MC5720 */
@@ -63,6 +130,8 @@ static struct usb_device_id id_table_3port [] = {
         { USB_DEVICE(0x1199, 0x0019) }, /* Sierra Wireless AirCard 595 */
         { USB_DEVICE(0x1199, 0x0120) }, /* Sierra Wireless AirCard 595U */
         { USB_DEVICE(0x1199, 0x0021) }, /* Sierra Wireless AirCard 597E */
+
+        /* GSM/UMTS Devices */
         { USB_DEVICE(0x1199, 0x6802) }, /* Sierra Wireless MC8755 */
         { USB_DEVICE(0x1199, 0x6804) }, /* Sierra Wireless MC8755 */
         { USB_DEVICE(0x1199, 0x6803) }, /* Sierra Wireless MC8765 */
@@ -73,20 +142,13 @@ static struct usb_device_id id_table_3port [] = {
 
 static struct usb_driver sierra_driver = {
         .name       = "sierra",
-        .probe      = usb_serial_probe,
+        .probe      = sierra_probe,
         .disconnect = usb_serial_disconnect,
         .id_table   = id_table,
         .no_dynamic_id =        1,
 };
 
 
-static int debug;
-
-/* per port private data */
-#define N_IN_URB        4
-#define N_OUT_URB       4
-#define IN_BUFLEN       4096
-
 struct sierra_port_private {
         spinlock_t lock;        /* lock the structure */
         int outstanding_urbs;   /* number of out urbs in flight */
@@ -421,7 +483,6 @@ static int sierra_open(struct usb_serial_port *port, struct file *filp)
         int i;
         struct urb *urb;
         int result;
-        __u16 set_mode_dzero = 0x0000;
 
         portdata = usb_get_serial_port_data(port);
 
@@ -457,12 +518,6 @@ static int sierra_open(struct usb_serial_port *port, struct file *filp)
 
         port->tty->low_latency = 1;
 
-        /* set mode to D0 */
-        result = usb_control_msg(serial->dev,
-                                 usb_rcvctrlpipe(serial->dev, 0),
-                                 0x00, 0x40, set_mode_dzero, 0, NULL,
-                                 0, USB_CTRL_SET_TIMEOUT);
-
         sierra_send_setup(port);
 
         /* start up the interrupt endpoint if we have one */
@@ -510,6 +565,9 @@ static int sierra_startup(struct usb_serial *serial)
 
         dbg("%s", __FUNCTION__);
 
+        /*Set Device mode to D0 */
+        sierra_set_power_state(serial->dev, 0x0000);
+
         /* Now setup per port private data */
         for (i = 0; i < serial->num_ports; i++) {
                 port = serial->port[i];