From: 赵子初 <zzc@rock-chips.com>
Date: Thu, 19 Jul 2012 09:21:31 +0000 (+0800)
Subject: phonepad:add usiserial.c for usi modem
X-Git-Tag: firefly_0821_release~8992
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b388cab1a5af8b29205fa938cf91902ef8840cf1;p=firefly-linux-kernel-4.4.55.git

phonepad:add usiserial.c for usi modem
---

diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index b71e309116a3..0b70da3518d9 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -661,4 +661,12 @@ config USB_SERIAL_DEBUG
 	  To compile this driver as a module, choose M here: the
 	  module will be called usb-debug.
 
+config USB_SERIAL_USI 
+ tristate "USB USI Serial driver" 
+ help 
+   Say Y here if you have a USI WCDMA modem that's connected to USB. 
+ 
+   To compile this driver as a module, choose M here: the module will be called 
+   module will be called option. 
+
 endif # USB_SERIAL
diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile
index 9e536eefb32c..991cc047a41a 100644
--- a/drivers/usb/serial/Makefile
+++ b/drivers/usb/serial/Makefile
@@ -60,3 +60,4 @@ obj-$(CONFIG_USB_SERIAL_WHITEHEAT)		+= whiteheat.o
 obj-$(CONFIG_USB_SERIAL_XIRCOM)			+= keyspan_pda.o
 obj-$(CONFIG_USB_SERIAL_VIVOPAY_SERIAL)		+= vivopay-serial.o
 obj-$(CONFIG_USB_SERIAL_ZIO)			+= zio.o
+obj-$(CONFIG_USB_SERIAL_USI)			+= usiserial.o
diff --git a/drivers/usb/serial/usiserial.c b/drivers/usb/serial/usiserial.c
new file mode 100755
index 000000000000..33a250c092c6
--- /dev/null
+++ b/drivers/usb/serial/usiserial.c
@@ -0,0 +1,83 @@
+/*
+ * USI WCDMA Modem driver
+ *
+ * Copyright (C) 2011 John Tseng
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/tty.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/serial.h>
+
+static int usi_probe(struct usb_interface *interface,
+			 const struct usb_device_id *id);
+
+static struct usb_device_id id_table [] = {
+	{ USB_DEVICE(0x0e8d, 0x00a1) },	/* USI WCDMA modem 3COM */
+	{ USB_DEVICE(0x0e8d, 0x00a2) },	/* USI WCDMA modem 2COM */
+	{ },
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
+static struct usb_driver usi_driver = {
+	.name =		"usi-modem",
+	.probe =	usi_probe,
+	.disconnect =	usb_serial_disconnect,
+	.id_table =	id_table,
+	.suspend =	usb_serial_suspend,
+	.resume =	usb_serial_resume,
+	.no_dynamic_id = 	1,
+};
+
+static struct usb_serial_driver usi_device = {
+	.driver = {
+		.owner =	THIS_MODULE,
+		.name =		"usi-modem",
+	},
+        .usb_driver =           &usi_driver,
+	.id_table =		id_table,
+	.num_ports =		1,
+};
+
+static int usi_probe(struct usb_interface *interface,
+			       const struct usb_device_id *id)
+{
+	int if_num;
+
+	if_num = interface->altsetting->desc.bInterfaceNumber;
+
+	if (if_num == 2)
+		return usb_serial_probe(interface, id);
+
+	return -ENODEV;
+}
+
+static int __init usi_init(void)
+{
+	int retval;
+
+	retval = usb_serial_register(&usi_device);
+	if (retval)
+		return retval;
+	retval = usb_register(&usi_driver);
+	if (retval)
+		usb_serial_deregister(&usi_device);
+	return retval;
+}
+
+static void __exit usi_exit(void)
+{
+	usb_deregister(&usi_driver);
+	usb_serial_deregister(&usi_device);
+}
+
+module_init(usi_init);
+module_exit(usi_exit);
+MODULE_LICENSE("GPL");