/*
 * Copyright (C) 2015 Karol Kosik <karo9@interia.eu>
 * Copyright (C) 2015-2016 Samsung Electronics
 *               Igor Kotrasinski <i.kotrasinsk@samsung.com>
 *               Krzysztof Opasiak <k.opasiak@samsung.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include <linux/device.h>
#include <linux/list.h>
#include <linux/module.h>

#include "vudc.h"

static unsigned int vudc_number = 1;

module_param_named(num, vudc_number, uint, S_IRUGO);
MODULE_PARM_DESC(num, "number of emulated controllers");

static struct platform_driver vudc_driver = {
	.probe		= vudc_probe,
	.remove		= vudc_remove,
	.driver		= {
		.name	= GADGET_NAME,
	},
};

static struct list_head vudc_devices = LIST_HEAD_INIT(vudc_devices);

static int __init init(void)
{
	int retval = -ENOMEM;
	int i;
	struct vudc_device *udc_dev = NULL, *udc_dev2 = NULL;

	if (usb_disabled())
		return -ENODEV;

	if (vudc_number < 1) {
		pr_err("Number of emulated UDC must be no less than 1");
		return -EINVAL;
	}

	retval = platform_driver_register(&vudc_driver);
	if (retval < 0)
		goto out;

	for (i = 0; i < vudc_number; i++) {
		udc_dev = alloc_vudc_device(i);
		if (!udc_dev) {
			retval = -ENOMEM;
			goto cleanup;
		}

		retval = platform_device_add(udc_dev->pdev);
		if (retval < 0) {
			put_vudc_device(udc_dev);
			goto cleanup;
		}

		list_add_tail(&udc_dev->dev_entry, &vudc_devices);
		if (!platform_get_drvdata(udc_dev->pdev)) {
			/*
			 * The udc was added successfully but its probe
			 * function failed for some reason.
			 */
			retval = -EINVAL;
			goto cleanup;
		}
	}
	goto out;

cleanup:
	list_for_each_entry_safe(udc_dev, udc_dev2, &vudc_devices, dev_entry) {
		list_del(&udc_dev->dev_entry);
		platform_device_del(udc_dev->pdev);
		put_vudc_device(udc_dev);
	}

	platform_driver_unregister(&vudc_driver);
out:
	return retval;
}
module_init(init);

static void __exit cleanup(void)
{
	struct vudc_device *udc_dev = NULL, *udc_dev2 = NULL;

	list_for_each_entry_safe(udc_dev, udc_dev2, &vudc_devices, dev_entry) {
		list_del(&udc_dev->dev_entry);
		platform_device_unregister(udc_dev->pdev);
		put_vudc_device(udc_dev);
	}
	platform_driver_unregister(&vudc_driver);
}
module_exit(cleanup);

MODULE_DESCRIPTION("USB over IP Device Controller");
MODULE_AUTHOR("Krzysztof Opasiak, Karol Kosik, Igor Kotrasinski");
MODULE_LICENSE("GPL");
/commit/drivers/usb?id=161e6d44a5e2d3f85365cb717d60e363171b39e6'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/misc?id=161e6d44a5e2d3f85365cb717d60e363171b39e6'>misc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/misc/yurex.c?id=161e6d44a5e2d3f85365cb717d60e363171b39e6'>yurex.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='161e6d44a5e2d3f85365cb717d60e363171b39e6'/><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><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Gabriel Krisman Bertazi &lt;krisman@collabora.co.uk&gt;</td><td class='right'>2017-01-16 12:23:42 -0200</td></tr>
<tr><th>committer</th><td>Ulf Hansson &lt;ulf.hansson@linaro.org&gt;</td><td class='right'>2017-01-31 11:26:49 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/misc/yurex.c?id=161e6d44a5e2d3f85365cb717d60e363171b39e6'>161e6d44a5e2d3f85365cb717d60e363171b39e6</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/misc/yurex.c?id=161e6d44a5e2d3f85365cb717d60e363171b39e6'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=161e6d44a5e2d3f85365cb717d60e363171b39e6'>5c8b730a137696ef979f05ceae869b6e0348794c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/misc/yurex.c?id=161e6d44a5e2d3f85365cb717d60e363171b39e6'>drivers/usb/misc/yurex.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/misc/yurex.c?id=566cf877a1fcb6d6dc0126b076aad062054c2637'>566cf877a1fcb6d6dc0126b076aad062054c2637</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/misc/yurex.c?id=161e6d44a5e2d3f85365cb717d60e363171b39e6&amp;id2=566cf877a1fcb6d6dc0126b076aad062054c2637'>diff</a>)</td></tr></table>
<div class='commit-subject'>mmc: sdhci: Ignore unexpected CARD_INT interrupts</div><div class='commit-msg'>One of our kernelCI boxes hanged at boot because a faulty eSDHC device
was triggering spurious CARD_INT interrupts for SD cards, causing CMD52
reads, which are not allowed for SD devices.  This adds a sanity check
to the interruption path, preventing that illegal command from getting
sent if the CARD_INT interruption should be disabled.

This quirk allows that particular machine to resume boot despite the
faulty hardware, instead of getting hung dealing with thousands of
mishandled interrupts.

Suggested-by: Adrian Hunter &lt;adrian.hunter@intel.com&gt;
Signed-off-by: Gabriel Krisman Bertazi &lt;krisman@collabora.co.uk&gt;
Acked-by: Adrian Hunter &lt;adrian.hunter@intel.com&gt;
Signed-off-by: Ulf Hansson &lt;ulf.hansson@linaro.org&gt;
Cc: &lt;stable@vger.kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=161e6d44a5e2d3f85365cb717d60e363171b39e6'>Diffstat</a> (limited to 'drivers/usb/misc/yurex.c')</div><table summary='diffstat' class='diffstat'>