/*
 * Driver for the NXP ISP1761 device controller
 *
 * Copyright 2014 Ideas on Board Oy
 *
 * Contacts:
 *	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 *
 * 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.
 */

#ifndef _ISP1760_UDC_H_
#define _ISP1760_UDC_H_

#include <linux/ioport.h>
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/timer.h>
#include <linux/usb/gadget.h>

struct isp1760_device;
struct isp1760_udc;

enum isp1760_ctrl_state {
	ISP1760_CTRL_SETUP,		/* Waiting for a SETUP transaction */
	ISP1760_CTRL_DATA_IN,		/* Setup received, data IN stage */
	ISP1760_CTRL_DATA_OUT,		/* Setup received, data OUT stage */
	ISP1760_CTRL_STATUS,		/* 0-length request in status stage */
};

struct isp1760_ep {
	struct isp1760_udc *udc;
	struct usb_ep ep;

	struct list_head queue;

	unsigned int addr;
	unsigned int maxpacket;
	char name[7];

	const struct usb_endpoint_descriptor *desc;

	bool rx_pending;
	bool halted;
	bool wedged;
};

/**
 * struct isp1760_udc - UDC state information
 * irq: IRQ number
 * irqname: IRQ name (as passed to request_irq)
 * regs: Base address of the UDC registers
 * driver: Gadget driver
 * gadget: Gadget device
 * lock: Protects driver, vbus_timer, ep, ep0_*, DC_EPINDEX register
 * ep: Array of endpoints
 * ep0_state: Control request state for endpoint 0
 * ep0_dir: Direction of the current control request
 * ep0_length: Length of the current control request
 * connected: Tracks gadget driver bus connection state
 */
struct isp1760_udc {
#ifdef CONFIG_USB_ISP1761_UDC
	struct isp1760_device *isp;

	int irq;
	char *irqname;
	void __iomem *regs;

	struct usb_gadget_driver *driver;
	struct usb_gadget gadget;

	spinlock_t lock;
	struct timer_list vbus_timer;

	struct isp1760_ep ep[15];

	enum isp1760_ctrl_state ep0_state;
	u8 ep0_dir;
	u16 ep0_length;

	bool connected;

	unsigned int devstatus;
#endif
};

#ifdef CONFIG_USB_ISP1761_UDC
int isp1760_udc_register(struct isp1760_device *isp, int irq,
			 unsigned long irqflags);
void isp1760_udc_unregister(struct isp1760_device *isp);
#else
static inline int isp1760_udc_register(struct isp1760_device *isp, int irq,
				       unsigned long irqflags)
{
	return 0;
}

static inline void isp1760_udc_unregister(struct isp1760_device *isp)
{
}
#endif

#endif
tter</option>
<option value='range'>range</option>
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<input class='txt' type='search' size='10' name='q' value=''/>
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</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/fs?id=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>fs</a>/<a href='/cgit.cgi/linux/net-next.git/commit/fs/afs?id=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>afs</a>/<a href='/cgit.cgi/linux/net-next.git/commit/fs/afs/mntpt.c?id=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>mntpt.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'/><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>Alexander Stein &lt;alexander.stein@systec-electronic.com&gt;</td><td class='right'>2017-01-30 12:35:28 +0100</td></tr>
<tr><th>committer</th><td>Linus Walleij &lt;linus.walleij@linaro.org&gt;</td><td class='right'>2017-01-30 15:53:57 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/fs/afs/mntpt.c?id=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>cdca06e4e85974d8a3503ab15709dbbaf90d3dd1</a> (<a href='/cgit.cgi/linux/net-next.git/patch/fs/afs/mntpt.c?id=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>268b0c01070a957006db97c88dccb5fb061440ff</a> /<a href='/cgit.cgi/linux/net-next.git/tree/fs/afs/mntpt.c?id=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>fs/afs/mntpt.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/fs/afs/mntpt.c?id=1b89970d81bbd52720fc64a3fe9572ee33588363'>1b89970d81bbd52720fc64a3fe9572ee33588363</a> (<a href='/cgit.cgi/linux/net-next.git/diff/fs/afs/mntpt.c?id=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1&amp;id2=1b89970d81bbd52720fc64a3fe9572ee33588363'>diff</a>)</td></tr></table>
<div class='commit-subject'>pinctrl: baytrail: Add missing spinlock usage in byt_gpio_irq_handler</div><div class='commit-msg'>According to VLI64 Intel Atom E3800 Specification Update (#329901)
concurrent read accesses may result in returning 0xffffffff and write
accesses may be dropped silently.
To workaround all accesses must be protected by locks.

Cc: stable@vger.kernel.org
Signed-off-by: Alexander Stein &lt;alexander.stein@systec-electronic.com&gt;
Acked-by: Mika Westerberg &lt;mika.westerberg@linux.intel.com&gt;
Signed-off-by: Linus Walleij &lt;linus.walleij@linaro.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=cdca06e4e85974d8a3503ab15709dbbaf90d3dd1'>Diffstat</a> (limited to 'fs/afs/mntpt.c')</div><table summary='diffstat' class='diffstat'>