[PATCH] USB: add the anydata usb-serial driver (bb833986) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/usb/serial/Kconfig

+9 −0

Original line number	Diff line number	Diff line
		@@ -62,6 +62,15 @@ config USB_SERIAL_AIRPRIME
		To compile this driver as a module, choose M here: the
		module will be called airprime.

		config USB_SERIAL_ANYDATA
		tristate "USB AnyData CDMA Wireless Driver"
		depends on USB_SERIAL
		help
		Say Y here if you want to use a AnyData CDMA device.

		To compile this driver as a module, choose M here: the
		module will be called anydata.

		config USB_SERIAL_BELKIN
		tristate "USB Belkin and Peracom Single Port Serial Driver"
		depends on USB_SERIAL

drivers/usb/serial/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -12,6 +12,7 @@ usbserial-obj-$(CONFIG_USB_EZUSB) += ezusb.o
		usbserial-objs := usb-serial.o generic.o bus.o $(usbserial-obj-y)

		obj-$(CONFIG_USB_SERIAL_AIRPRIME) += airprime.o
		obj-$(CONFIG_USB_SERIAL_ANYDATA) += anydata.o
		obj-$(CONFIG_USB_SERIAL_BELKIN) += belkin_sa.o
		obj-$(CONFIG_USB_SERIAL_CP2101) += cp2101.o
		obj-$(CONFIG_USB_SERIAL_CYBERJACK) += cyberjack.o

drivers/usb/serial/anydata.c

0 → 100644

+123 −0

Original line number	Diff line number	Diff line
		/*
		* AnyData CDMA Serial USB driver
		*
		* Copyright (C) 2005 Greg Kroah-Hartman <gregkh@suse.de>
		*
		* 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 "usb-serial.h"

		static struct usb_device_id id_table [] = {
		{ USB_DEVICE(0x16d5, 0x6501) }, /* AirData CDMA device */
		{ },
		};
		MODULE_DEVICE_TABLE(usb, id_table);

		/* if overridden by the user, then use their value for the size of the
		* read and write urbs */
		static int buffer_size;
		static int debug;

		static struct usb_driver anydata_driver = {
		.owner = THIS_MODULE,
		.name = "anydata",
		.probe = usb_serial_probe,
		.disconnect = usb_serial_disconnect,
		.id_table = id_table,
		};

		static int anydata_open(struct usb_serial_port port, struct file filp)
		{
		char *buffer;
		int result = 0;

		dbg("%s - port %d", __FUNCTION__, port->number);

		if (buffer_size) {
		/* override the default buffer sizes */
		buffer = kmalloc(buffer_size, GFP_KERNEL);
		if (!buffer) {
		dev_err(&port->dev, "%s - out of memory.\n",
		__FUNCTION__);
		return -ENOMEM;
		}
		kfree (port->read_urb->transfer_buffer);
		port->read_urb->transfer_buffer = buffer;
		port->read_urb->transfer_buffer_length = buffer_size;

		buffer = kmalloc(buffer_size, GFP_KERNEL);
		if (!buffer) {
		dev_err(&port->dev, "%s - out of memory.\n",
		__FUNCTION__);
		return -ENOMEM;
		}
		kfree (port->write_urb->transfer_buffer);
		port->write_urb->transfer_buffer = buffer;
		port->write_urb->transfer_buffer_length = buffer_size;
		port->bulk_out_size = buffer_size;
		}

		/* Start reading from the device */
		usb_fill_bulk_urb(port->read_urb, port->serial->dev,
		usb_rcvbulkpipe(port->serial->dev,
		port->bulk_in_endpointAddress),
		port->read_urb->transfer_buffer,
		port->read_urb->transfer_buffer_length,
		usb_serial_generic_write_bulk_callback, port);
		result = usb_submit_urb(port->read_urb, GFP_KERNEL);
		if (result)
		dev_err(&port->dev,
		"%s - failed submitting read urb, error %d\n",
		__FUNCTION__, result);

		return result;
		}

		static struct usb_serial_driver anydata_device = {
		.driver = {
		.owner = THIS_MODULE,
		.name = "anydata",
		},
		.id_table = id_table,
		.num_interrupt_in = NUM_DONT_CARE,
		.num_bulk_in = NUM_DONT_CARE,
		.num_bulk_out = NUM_DONT_CARE,
		.num_ports = 1,
		.open = anydata_open,
		};

		static int __init anydata_init(void)
		{
		int retval;

		retval = usb_serial_register(&anydata_device);
		if (retval)
		return retval;
		retval = usb_register(&anydata_driver);
		if (retval)
		usb_serial_deregister(&anydata_device);
		return retval;
		}

		static void __exit anydata_exit(void)
		{
		usb_deregister(&anydata_driver);
		usb_serial_deregister(&anydata_device);
		}

		module_init(anydata_init);
		module_exit(anydata_exit);
		MODULE_LICENSE("GPL");

		module_param(debug, bool, S_IRUGO \| S_IWUSR);
		MODULE_PARM_DESC(debug, "Debug enabled or not");
		module_param(buffer_size, int, 0);
		MODULE_PARM_DESC(buffer_size, "Size of the transfer buffers");

drivers/usb/serial/generic.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -309,6 +309,7 @@ void usb_serial_generic_write_bulk_callback (struct urb urb, struct pt_regs re

		schedule_work(&port->work);
		}
		EXPORT_SYMBOL_GPL(usb_serial_generic_write_bulk_callback);

		void usb_serial_generic_shutdown (struct usb_serial *serial)
		{