path: root/drivers/usb/host/ohci-hcd.c

/*
 * Open Host Controller Interface (OHCI) driver for USB.
 *
 * Maintainer: Alan Stern <stern@rowland.harvard.edu>
 *
 * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
 * (C) Copyright 2000-2004 David Brownell <dbrownell@users.sourceforge.net>
 *
 * [ Initialisation is based on Linus'  ]
 * [ uhci code and gregs ohci fragments ]
 * [ (C) Copyright 1999 Linus Torvalds  ]
 * [ (C) Copyright 1999 Gregory P. Smith]
 *
 *
 * OHCI is the main "non-Intel/VIA" standard for USB 1.1 host controller
 * interfaces (though some non-x86 Intel chips use it).  It supports
 * smarter hardware than UHCI.  A download link for the spec available
 * through the http://www.usb.org website.
 *
 * This file is licenced under the GPL.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/ioport.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/timer.h>
#include <linux/list.h>
#include <linux/usb.h>
#include <linux/usb/otg.h>
#include <linux/usb/hcd.h>
#include <linux/dma-mapping.h>
#include <linux/dmapool.h>
#include <linux/workqueue.h>
#include <linux/debugfs.h>

#include <asm/io.h>
#include <asm/irq.h>
#include <asm/unaligned.h>
#include <asm/byteorder.h>


#define DRIVER_AUTHOR "Roman Weissgaerber, David Brownell"
#define DRIVER_DESC "USB 1.1 'Open' Host Controller (OHCI) Driver"

/*-------------------------------------------------------------------------*/

#undef OHCI_VERBOSE_DEBUG	/* not always helpful */

/* For initializing controller (mask in an HCFS mode too) */
#define	OHCI_CONTROL_INIT	OHCI_CTRL_CBSR
#define	OHCI_INTR_INIT \
		(OHCI_INTR_MIE | OHCI_INTR_RHSC | OHCI_INTR_UE \
		| OHCI_INTR_RD | OHCI_INTR_WDH)

#ifdef __hppa__
/* On PA-RISC, PDC can leave IR set incorrectly; ignore it there. */
#define	IR_DISABLE
#endif

#ifdef CONFIG_ARCH_OMAP
/* OMAP doesn't support IR (no SMM; not needed) */
#define	IR_DISABLE
#endif

/*-------------------------------------------------------------------------*/

static const char	hcd_name [] = "ohci_hcd";

#define	STATECHANGE_DELAY	msecs_to_jiffies(300)

#include "ohci.h"
#include "pci-quirks.h"

static void ohci_dump (struct ohci_hcd *ohci, int verbose);
static int ohci_init (struct ohci_hcd *ohci);
static void ohci_stop (struct usb_hcd *hcd);

#if defined(CONFIG_PM) || defined(CONFIG_PCI)
static int ohci_restart (struct ohci_hcd *ohci);
#endif

#ifdef CONFIG_PCI
static void sb800_prefetch(struct ohci_hcd *ohci, int on);
#else
static inline void sb800_prefetch(struct ohci_hcd *ohci, int on)
{
	return;
}
#endif


#include "ohci-hub.c"
#include "ohci-dbg.c"
#include