[PATCH] USB serial: add navman driver (e9a66c64) · Commits · e / devices / android_kernel_oneplus_sm7250

drivers/usb/serial/Kconfig

+7 −0

Original line number	Diff line number	Diff line
		@@ -403,6 +403,13 @@ config USB_SERIAL_MCT_U232
		To compile this driver as a module, choose M here: the
		module will be called mct_u232.

		config USB_SERIAL_NAVMAN
		tristate "USB Navman GPS device"
		depends on USB_SERIAL
		help
		To compile this driver as a module, choose M here: the
		module will be called navman.

		config USB_SERIAL_PL2303
		tristate "USB Prolific 2303 Single Port Serial Driver"
		depends on USB_SERIAL

drivers/usb/serial/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -32,6 +32,7 @@ obj-$(CONFIG_USB_SERIAL_KEYSPAN_PDA) += keyspan_pda.o
		obj-$(CONFIG_USB_SERIAL_KLSI) += kl5kusb105.o
		obj-$(CONFIG_USB_SERIAL_KOBIL_SCT) += kobil_sct.o
		obj-$(CONFIG_USB_SERIAL_MCT_U232) += mct_u232.o
		obj-$(CONFIG_USB_SERIAL_NAVMAN) += navman.o
		obj-$(CONFIG_USB_SERIAL_OMNINET) += omninet.o
		obj-$(CONFIG_USB_SERIAL_OPTION) += option.o
		obj-$(CONFIG_USB_SERIAL_PL2303) += pl2303.o

drivers/usb/serial/navman.c

0 → 100644

+157 −0

Original line number	Diff line number	Diff line
		/*
		* Navman Serial USB driver
		*
		* Copyright (C) 2006 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/tty_flip.h>
		#include <linux/module.h>
		#include <linux/usb.h>
		#include "usb-serial.h"

		static int debug;

		static struct usb_device_id id_table [] = {
		{ USB_DEVICE(0x0a99, 0x0001) }, /* Talon Technology device */
		{ },
		};
		MODULE_DEVICE_TABLE(usb, id_table);

		static struct usb_driver navman_driver = {
		.name = "navman",
		.probe = usb_serial_probe,
		.disconnect = usb_serial_disconnect,
		.id_table = id_table,
		.no_dynamic_id = 1,
		};

		static void navman_read_int_callback(struct urb urb, struct pt_regs regs)
		{
		struct usb_serial_port *port = urb->context;
		unsigned char *data = urb->transfer_buffer;
		struct tty_struct *tty;
		int result;

		switch (urb->status) {
		case 0:
		/* success */
		break;
		case -ECONNRESET:
		case -ENOENT:
		case -ESHUTDOWN:
		/* this urb is terminated, clean up */
		dbg("%s - urb shutting down with status: %d",
		__FUNCTION__, urb->status);
		return;
		default:
		dbg("%s - nonzero urb status received: %d",
		__FUNCTION__, urb->status);
		goto exit;
		}

		usb_serial_debug_data(debug, &port->dev, __FUNCTION__,
		urb->actual_length, data);

		tty = port->tty;
		if (tty && urb->actual_length) {
		tty_buffer_request_room(tty, urb->actual_length);
		tty_insert_flip_string(tty, data, urb->actual_length);
		tty_flip_buffer_push(tty);
		}

		exit:
		result = usb_submit_urb(urb, GFP_ATOMIC);
		if (result)
		dev_err(&urb->dev->dev,
		"%s - Error %d submitting interrupt urb\n",
		__FUNCTION__, result);
		}

		static int navman_open(struct usb_serial_port port, struct file filp)
		{
		int result = 0;

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

		if (port->interrupt_in_urb) {
		dbg("%s - adding interrupt input for treo", __FUNCTION__);
		result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
		if (result)
		dev_err(&port->dev,
		"%s - failed submitting interrupt urb, error %d\n",
		__FUNCTION__, result);
		}
		return result;
		}

		static void navman_close(struct usb_serial_port port, struct file filp)
		{
		dbg("%s - port %d", __FUNCTION__, port->number);

		if (port->interrupt_in_urb)
		usb_kill_urb(port->interrupt_in_urb);
		}

		static int navman_write(struct usb_serial_port *port,
		const unsigned char *buf, int count)
		{
		dbg("%s - port %d", __FUNCTION__, port->number);

		/*
		* This device can't write any data, only read from the device
		* so we just silently eat all data sent to us and say it was
		* successfully sent.
		* Evil, I know, but do you have a better idea?
		*/

		return count;
		}

		static struct usb_serial_driver navman_device = {
		.driver = {
		.owner = THIS_MODULE,
		.name = "navman",
		},
		.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 = navman_open,
		.close = navman_close,
		.write = navman_write,
		.read_int_callback = navman_read_int_callback,
		};

		static int __init navman_init(void)
		{
		int retval;

		retval = usb_serial_register(&navman_device);
		if (retval)
		return retval;
		retval = usb_register(&navman_driver);
		if (retval)
		usb_serial_deregister(&navman_device);
		return retval;
		}

		static void __exit navman_exit(void)
		{
		usb_deregister(&navman_driver);
		usb_serial_deregister(&navman_device);
		}

		module_init(navman_init);
		module_exit(navman_exit);
		MODULE_LICENSE("GPL");

		module_param(debug, bool, S_IRUGO \| S_IWUSR);
		MODULE_PARM_DESC(debug, "Debug enabled or not");