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/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Standalone EHCI usb debug driver
 *
 * Originally written by:
 *  Eric W. Biederman" <ebiederm@xmission.com> and
 *  Yinghai Lu <yhlu.kernel@gmail.com>
 *
 * Changes for early/late printk and HW errata:
 *  Jason Wessel <jason.wessel@windriver.com>
 *  Copyright (C) 2009 Wind River Systems, Inc.
 *
 */

#ifndef __LINUX_USB_EHCI_DBGP_H
#define __LINUX_USB_EHCI_DBGP_H

#include <linux/console.h>
#include <linux/types.h>

/* Appendix C, Debug port ... intended for use with special "debug devices"
 * that can help if there's no serial console.  (nonstandard enumeration.)
 */
struct ehci_dbg_port {
	u32	control;
#define DBGP_OWNER	(1<<30)
#define DBGP_ENABLED	(1<<28)
#define DBGP_DONE	(1<<16)
#define DBGP_INUSE	(1<<10)
#define DBGP_ERRCODE(x)	(((x)>>7)&0x07)
#	define DBGP_ERR_BAD	1
#	define DBGP_ERR_SIGNAL	2
#define DBGP_ERROR	(1<<6)
#define DBGP_GO		(1<<5)
#define DBGP_OUT	(1<<4)
#define DBGP_LEN(x)	(((x)>>0)&0x0f)
	u32	pids;
#define DBGP_PID_GET(x)		(((x)>>16)&0xff)
#define DBGP_PID_SET(data, tok)	(((data)<<8)|(tok))
	u32	data03;
	u32	data47;
	u32	address;
#define DBGP_EPADDR(dev, ep)	(((dev)<<8)|(ep))
};

#ifdef CONFIG_EARLY_PRINTK_DBGP
extern int early_dbgp_init(char *s);
extern struct console early_dbgp_console;
#endif /* CONFIG_EARLY_PRINTK_DBGP */

struct usb_hcd;

#ifdef CONFIG_XEN_DOM0
extern int xen_dbgp_reset_prep(struct usb_hcd *);
extern int xen_dbgp_external_startup(struct usb_hcd *);
#else
static inline int xen_dbgp_reset_prep(struct usb_hcd *hcd)
{
	return 1; /* Shouldn't this be 0? */
}

static inline int xen_dbgp_external_startup(struct usb_hcd *hcd)
{
	return -1;
}
#endif

#ifdef CONFIG_EARLY_PRINTK_DBGP
/* Call backs from ehci host driver to ehci debug driver */
extern int dbgp_external_startup(struct usb_hcd *);
extern int dbgp_reset_prep(struct usb_hcd *);
#else
static inline int dbgp_reset_prep(struct usb_hcd *hcd)
{
	return xen_dbgp_reset_prep(hcd);
}

static inline int dbgp_external_startup(struct usb_hcd *hcd)
{
	return xen_dbgp_external_startup(hcd);
}
#endif

#endif /* __LINUX_USB_EHCI_DBGP_H */

Filemanager

Name Type Size Permission Actions
association.h File 4.59 KB 0644
atmel_usba_udc.h File 421 B 0644
audio-v2.h File 13.17 KB 0644
audio.h File 1.23 KB 0644
c67x00.h File 1.82 KB 0644
cdc-wdm.h File 651 B 0644
cdc.h File 1.48 KB 0644
cdc_ncm.h File 5.56 KB 0644
ch9.h File 2.5 KB 0644
chipidea.h File 2.77 KB 0644
composite.h File 25.17 KB 0644
ehci-dbgp.h File 2.05 KB 0644
ehci_def.h File 7.89 KB 0644
ehci_pdriver.h File 2.31 KB 0644
ezusb.h File 286 B 0644
functionfs.h File 151 B 0644
g_hid.h File 1.13 KB 0644
gadget.h File 32.65 KB 0644
gadget_configfs.h File 2.94 KB 0644
gpio_vbus.h File 1.13 KB 0644
hcd.h File 25.93 KB 0644
input.h File 716 B 0644
iowarrior.h File 1.34 KB 0644
irda.h File 3.76 KB 0644
isp116x.h File 1.13 KB 0644
isp1301.h File 2.38 KB 0644
isp1362.h File 1.59 KB 0644
isp1760.h File 633 B 0644
m66592.h File 1.41 KB 0644
musb-ux500.h File 899 B 0644
musb.h File 4.59 KB 0644
net2280.h File 23.55 KB 0644
of.h File 1.46 KB 0644
ohci_pdriver.h File 1.71 KB 0644
otg-fsm.h File 8.61 KB 0644
otg.h File 3.01 KB 0644
pd.h File 8.98 KB 0644
pd_bdo.h File 1011 B 0644
pd_vdo.h File 7.58 KB 0644
phy.h File 9.25 KB 0644
phy_companion.h File 1.17 KB 0644
quirks.h File 2.34 KB 0644
r8a66597.h File 17.65 KB 0644
renesas_usbhs.h File 4.76 KB 0644
rndis_host.h File 5.94 KB 0644
samsung_usb_phy.h File 530 B 0644
serial.h File 17.12 KB 0644
sl811.h File 838 B 0644
storage.h File 2.58 KB 0644
tcpm.h File 6.46 KB 0644
tegra_usb_phy.h File 2.38 KB 0644
tilegx.h File 983 B 0644
typec.h File 7.04 KB 0644
uas.h File 2.07 KB 0644
ulpi.h File 1.99 KB 0644
usb338x.h File 7.63 KB 0644
usb_phy_generic.h File 892 B 0644
usbnet.h File 10.01 KB 0644
wusb-wa.h File 7.5 KB 0644
wusb.h File 9.92 KB 0644
xhci-dbgp.h File 825 B 0644