/*
 * 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.
 *
 * TODO:
 *	Add termios method that uses copy_hw but also kills all echo
 *	flags as the navman is rx only so cannot echo.
 */

#include <linux/gfp.h>
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>

static const struct usb_device_id id_table[] = {
	{ USB_DEVICE(0x0a99, 0x0001) },	/* Talon Technology device */
	{ USB_DEVICE(0x0df7, 0x0900) },	/* Mobile Action i-gotU */
	{ },
};
MODULE_DEVICE_TABLE(usb, id_table);

static void navman_read_int_callback(struct urb *urb)
{
	struct usb_serial_port *port = urb->context;
	unsigned char *data = urb->transfer_buffer;
	int status = urb->status;
	int result;

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

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

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

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

static int navman_open(struct tty_struct *tty, struct usb_serial_port *port)
{
	int result = 0;

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

static void navman_close(struct usb_serial_port *port)
{
	usb_kill_urb(port->interrupt_in_urb);
}

static int navman_write(struct tty_struct *tty, struct usb_serial_port *port,
			const unsigned char *buf, int count)
{
	/*
	 * This device can't write any data, only read from the device
	 */
	return -EOPNOTSUPP;
}

static struct usb_serial_driver navman_device = {
	.driver = {
		.owner =	THIS_MODULE,
		.name =		"navman",
	},
	.id_table =		id_table,
	.num_ports =		1,
	.open =			navman_open,
	.close = 		navman_close,
	.write = 		navman_write,
	.read_int_callback =	navman_read_int_callback,
};

static struct usb_serial_driver * const serial_drivers[] = {
	&navman_device, NULL
};

module_usb_serial_driver(serial_drivers, id_table);

MODULE_LICENSE("GPL");
ivate-remove'>Documentation</a>/<a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/Documentation/perf-kmem.txt?h=nds-private-remove'>perf-kmem.txt</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove'>Diffstat</a> (limited to 'tools/perf/Documentation/perf-kmem.txt')</div><table summary='diffstat' class='diffstat'>