Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

1 files changed, 145 insertions, 93 deletions

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index b28a9b60206..fa6a7ceaa0d 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -3,77 +3,21 @@
  *
  * (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.
  *
- * History:
- * 
- * 2004/03/24 LH7A404 support (Durgesh Pattamatta & Marc Singer)
- * 2004/02/04 use generic dma_* functions instead of pci_* (dsaxena@plexity.net)
- * 2003/02/24 show registers in sysfs (Kevin Brosius)
- *
- * 2002/09/03 get rid of ed hashtables, rework periodic scheduling and
- * 	bandwidth accounting; if debugging, show schedules in driverfs
- * 2002/07/19 fixes to management of ED and schedule state.
- * 2002/06/09 SA-1111 support (Christopher Hoover)
- * 2002/06/01 remember frame when HC won't see EDs any more; use that info
- *	to fix urb unlink races caused by interrupt latency assumptions;
- *	minor ED field and function naming updates
- * 2002/01/18 package as a patch for 2.5.3; this should match the
- *	2.4.17 kernel modulo some bugs being fixed.
- *
- * 2001/10/18 merge pmac cleanup (Benjamin Herrenschmidt) and bugfixes
- *	from post-2.4.5 patches.
- * 2001/09/20 URB_ZERO_PACKET support; hcca_dma portability, OPTi warning
- * 2001/09/07 match PCI PM changes, errnos from Linus' tree
- * 2001/05/05 fork 2.4.5 version into "hcd" framework, cleanup, simplify;
- *	pbook pci quirks gone (please fix pbook pci sw!) (db)
- *
- * 2001/04/08 Identify version on module load (gb)
- * 2001/03/24 td/ed hashing to remove bus_to_virt (Steve Longerbeam);
- 	pci_map_single (db)
- * 2001/03/21 td and dev/ed allocation uses new pci_pool API (db)
- * 2001/03/07 hcca allocation uses pci_alloc_consistent (Steve Longerbeam)
- *
- * 2000/09/26 fixed races in removing the private portion of the urb
- * 2000/09/07 disable bulk and control lists when unlinking the last
- *	endpoint descriptor in order to avoid unrecoverable errors on
- *	the Lucent chips. (rwc@sgi)
- * 2000/08/29 use bandwidth claiming hooks (thanks Randy!), fix some
- *	urb unlink probs, indentation fixes
- * 2000/08/11 various oops fixes mostly affecting iso and cleanup from
- *	device unplugs.
- * 2000/06/28 use PCI hotplug framework, for better power management
- *	and for Cardbus support (David Brownell)
- * 2000/earlier:  fixes for NEC/Lucent chips; suspend/resume handling
- *	when the controller loses power; handle UE; cleanup; ...
- *
- * v5.2 1999/12/07 URB 3rd preview, 
- * v5.1 1999/11/30 URB 2nd preview, cpia, (usb-scsi)
- * v5.0 1999/11/22 URB Technical preview, Paul Mackerras powerbook susp/resume 
- * 	i386: HUB, Keyboard, Mouse, Printer 
- *
- * v4.3 1999/10/27 multiple HCs, bulk_request
- * v4.2 1999/09/05 ISO API alpha, new dev alloc, neg Error-codes
- * v4.1 1999/08/27 Randy Dunlap's - ISO API first impl.
- * v4.0 1999/08/18 
- * v3.0 1999/06/25 
- * v2.1 1999/05/09  code clean up
- * v2.0 1999/05/04 
- * v1.0 1999/04/27 initial release
- *
  * This file is licenced under the GPL.
  */
- 
+
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/pci.h>
@@ -89,7 +33,7 @@
 #include <linux/list.h>
 #include <linux/usb.h>
 #include <linux/usb/otg.h>
-#include <linux/dma-mapping.h> 
+#include <linux/dma-mapping.h>
 #include <linux/dmapool.h>
 #include <linux/reboot.h>
 
@@ -183,11 +127,11 @@ static int ohci_urb_enqueue (
 	int		i, size = 0;
 	unsigned long	flags;
 	int		retval = 0;
-	
+
 #ifdef OHCI_VERBOSE_DEBUG
 	urb_print (urb, "SUB", usb_pipein (pipe));
 #endif
-	
+
 	/* every endpoint has a ed, locate and maybe (re)initialize it */
 	if (! (ed = ed_get (ohci, ep, urb->dev, pipe, urb->interval)))
 		return -ENOMEM;
@@ -232,7 +176,7 @@ static int ohci_urb_enqueue (
 	memset (urb_priv, 0, sizeof (urb_priv_t) + size * sizeof (struct td *));
 	INIT_LIST_HEAD (&urb_priv->pending);
 	urb_priv->length = size;
-	urb_priv->ed = ed;	
+	urb_priv->ed = ed;
 
 	/* allocate the TDs (deferring hash chain updates) */
 	for (i = 0; i < size; i++) {
@@ -242,7 +186,7 @@ static int ohci_urb_enqueue (
 			urb_free_priv (ohci, urb_priv);
 			return -ENOMEM;
 		}
-	}	
+	}
 
 	spin_lock_irqsave (&ohci->lock, flags);
 
@@ -313,13 +257,13 @@ static int ohci_urb_dequeue (struct usb_hcd *hcd, struct urb *urb)
 {
 	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);
 	unsigned long		flags;
-	
+
 #ifdef OHCI_VERBOSE_DEBUG
 	urb_print (urb, "UNLINK", 1);
-#endif		  
+#endif
 
 	spin_lock_irqsave (&ohci->lock, flags);
- 	if (HC_IS_RUNNING(hcd->state)) {
+	if (HC_IS_RUNNING(hcd->state)) {
 		urb_priv_t  *urb_priv;
 
 		/* Unless an IRQ completed the unlink while it was being
@@ -512,11 +456,11 @@ static int ohci_init (struct ohci_hcd *ohci)
 
 /* Start an OHCI controller, set the BUS operational
  * resets USB and controller
- * enable interrupts 
+ * enable interrupts
  */
 static int ohci_run (struct ohci_hcd *ohci)
 {
-  	u32			mask, temp;
+	u32			mask, temp;
 	int			first = ohci->fminterval == 0;
 	struct usb_hcd		*hcd = ohci_to_hcd(ohci);
 
@@ -534,7 +478,7 @@ static int ohci_run (struct ohci_hcd *ohci)
 		/* also: power/overcurrent flags in roothub.a */
 	}
 
-  	/* Reset USB nearly "by the book".  RemoteWakeupConnected was
+	/* Reset USB nearly "by the book".  RemoteWakeupConnected was
 	 * saved if boot firmware (BIOS/SMM/...) told us it's connected,
 	 * or if bus glue did the same (e.g. for PCI add-in cards with
 	 * PCI PM support).
@@ -765,9 +709,9 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
 		dl_done_list (ohci);
 		spin_unlock (&ohci->lock);
 		if (HC_IS_RUNNING(hcd->state))
-			ohci_writel (ohci, OHCI_INTR_WDH, &regs->intrenable); 
+			ohci_writel (ohci, OHCI_INTR_WDH, &regs->intrenable);
 	}
-  
+
 	/* could track INTR_SO to reduce available PCI/... bandwidth */
 
 	/* handle any pending URB/ED unlinks, leaving INTR_SF enabled
@@ -778,12 +722,12 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
 		finish_unlinks (ohci, ohci_frame_no(ohci));
 	if ((ints & OHCI_INTR_SF) != 0 && !ohci->ed_rm_list
 			&& HC_IS_RUNNING(hcd->state))
-		ohci_writel (ohci, OHCI_INTR_SF, &regs->intrdisable);	
+		ohci_writel (ohci, OHCI_INTR_SF, &regs->intrdisable);
 	spin_unlock (&ohci->lock);
 
 	if (HC_IS_RUNNING(hcd->state)) {
 		ohci_writel (ohci, ints, &regs->intrstatus);
-		ohci_writel (ohci, OHCI_INTR_MIE, &regs->intrenable);	
+		ohci_writel (ohci, OHCI_INTR_MIE, &regs->intrenable);
 		// flush those writes
 		(void) ohci_readl (ohci, &ohci->regs->control);
 	}
@@ -794,7 +738,7 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
 /*-------------------------------------------------------------------------*/
 
 static void ohci_stop (struct usb_hcd *hcd)
-{	
+{
 	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);
 
 	ohci_dbg (ohci, "stop %s controller (state 0x%02x)\n",
@@ -812,8 +756,8 @@ static void ohci_stop (struct usb_hcd *hcd)
 	remove_debug_files (ohci);
 	ohci_mem_cleanup (ohci);
 	if (ohci->hcca) {
-		dma_free_coherent (hcd->self.controller, 
-				sizeof *ohci->hcca, 
+		dma_free_coherent (hcd->self.controller,
+				sizeof *ohci->hcca,
 				ohci->hcca, ohci->hcca_dma);
 		ohci->hcca = NULL;
 		ohci->hcca_dma = 0;
@@ -836,7 +780,7 @@ static int ohci_restart (struct ohci_hcd *ohci)
 	 * recycle any "live" eds/tds (and urbs) right away.
 	 * later, khubd disconnect processing will recycle the other state,
 	 * (either as disconnect/reconnect, or maybe someday as a reset).
-	 */ 
+	 */
 	spin_lock_irq(&ohci->lock);
 	disable (ohci);
 	usb_root_hub_lost_power(ohci_to_hcd(ohci)->self.root_hub);
@@ -875,11 +819,11 @@ static int ohci_restart (struct ohci_hcd *ohci)
 	/* empty the interrupt branches */
 	for (i = 0; i < NUM_INTS; i++) ohci->load [i] = 0;
 	for (i = 0; i < NUM_INTS; i++) ohci->hcca->int_table [i] = 0;
-	
+
 	/* no EDs to remove */
 	ohci->ed_rm_list = NULL;
 
-	/* empty control and bulk lists */	 
+	/* empty control and bulk lists */
 	ohci->ed_controltail = NULL;
 	ohci->ed_bulktail    = NULL;
 
@@ -911,59 +855,167 @@ MODULE_LICENSE ("GPL");
 
 #ifdef CONFIG_PCI
 #include "ohci-pci.c"
+#define PCI_DRIVER		ohci_pci_driver
 #endif
 
 #ifdef CONFIG_SA1111
 #include "ohci-sa1111.c"
+#define SA1111_DRIVER		ohci_hcd_sa1111_driver
 #endif
 
 #ifdef CONFIG_ARCH_S3C2410
 #include "ohci-s3c2410.c"
+#define PLATFORM_DRIVER		ohci_hcd_s3c2410_driver
 #endif
 
 #ifdef CONFIG_ARCH_OMAP
 #include "ohci-omap.c"
+#define PLATFORM_DRIVER		ohci_hcd_omap_driver
 #endif
 
 #ifdef CONFIG_ARCH_LH7A404
 #include "ohci-lh7a404.c"
+#define PLATFORM_DRIVER		ohci_hcd_lh7a404_driver
 #endif
 
 #ifdef CONFIG_PXA27x
 #include "ohci-pxa27x.c"
+#define PLATFORM_DRIVER		ohci_hcd_pxa27x_driver
 #endif
 
 #ifdef CONFIG_ARCH_EP93XX
 #include "ohci-ep93xx.c"
+#define PLATFORM_DRIVER		ohci_hcd_ep93xx_driver
 #endif
 
 #ifdef CONFIG_SOC_AU1X00
 #include "ohci-au1xxx.c"
+#define PLATFORM_DRIVER		ohci_hcd_au1xxx_driver
+#endif
+
+#ifdef CONFIG_PNX8550
+#include "ohci-pnx8550.c"
+#define PLATFORM_DRIVER		ohci_hcd_pnx8550_driver
 #endif
 
 #ifdef CONFIG_USB_OHCI_HCD_PPC_SOC
 #include "ohci-ppc-soc.c"
+#define PLATFORM_DRIVER		ohci_hcd_ppc_soc_driver
 #endif
 
 #ifdef CONFIG_ARCH_AT91
 #include "ohci-at91.c"
+#define PLATFORM_DRIVER		ohci_hcd_at91_driver
 #endif
 
 #ifdef CONFIG_ARCH_PNX4008
 #include "ohci-pnx4008.c"
+#define PLATFORM_DRIVER		usb_hcd_pnx4008_driver
 #endif
 
-#if !(defined(CONFIG_PCI) \
-      || defined(CONFIG_SA1111) \
-      || defined(CONFIG_ARCH_S3C2410) \
-      || defined(CONFIG_ARCH_OMAP) \
-      || defined (CONFIG_ARCH_LH7A404) \
-      || defined (CONFIG_PXA27x) \
-      || defined (CONFIG_ARCH_EP93XX) \
-      || defined (CONFIG_SOC_AU1X00) \
-      || defined (CONFIG_USB_OHCI_HCD_PPC_SOC) \
-      || defined (CONFIG_ARCH_AT91) \
-      || defined (CONFIG_ARCH_PNX4008) \
-	)
+
+#ifdef CONFIG_USB_OHCI_HCD_PPC_OF
+#include "ohci-ppc-of.c"
+#define OF_PLATFORM_DRIVER	ohci_hcd_ppc_of_driver
+#endif
+
+#ifdef CONFIG_PPC_PS3
+#include "ohci-ps3.c"
+#define PS3_SYSTEM_BUS_DRIVER	ps3_ohci_sb_driver
+#endif
+
+#if	!defined(PCI_DRIVER) &&		\
+	!defined(PLATFORM_DRIVER) &&	\
+	!defined(OF_PLATFORM_DRIVER) &&	\
+	!defined(SA1111_DRIVER) &&	\
+	!defined(PS3_SYSTEM_BUS_DRIVER)
 #error "missing bus glue for ohci-hcd"
 #endif
+
+static int __init ohci_hcd_mod_init(void)
+{
+	int retval = 0;
+
+	if (usb_disabled())
+		return -ENODEV;
+
+	printk (KERN_DEBUG "%s: " DRIVER_INFO "\n", hcd_name);
+	pr_debug ("%s: block sizes: ed %Zd td %Zd\n", hcd_name,
+		sizeof (struct ed), sizeof (struct td));
+
+#ifdef PS3_SYSTEM_BUS_DRIVER
+	retval = ps3_system_bus_driver_register(&PS3_SYSTEM_BUS_DRIVER);
+	if (retval < 0)
+		goto error_ps3;
+#endif
+
+#ifdef PLATFORM_DRIVER
+	retval = platform_driver_register(&PLATFORM_DRIVER);
+	if (retval < 0)
+		goto error_platform;
+#endif
+
+#ifdef OF_PLATFORM_DRIVER
+	retval = of_register_platform_driver(&OF_PLATFORM_DRIVER);
+	if (retval < 0)
+		goto error_of_platform;
+#endif
+
+#ifdef SA1111_DRIVER
+	retval = sa1111_driver_register(&SA1111_DRIVER);
+	if (retval < 0)
+		goto error_sa1111;
+#endif
+
+#ifdef PCI_DRIVER
+	retval = pci_register_driver(&PCI_DRIVER);
+	if (retval < 0)
+		goto error_pci;
+#endif
+
+	return retval;
+
+	/* Error path */
+#ifdef PCI_DRIVER
+ error_pci:
+#endif
+#ifdef SA1111_DRIVER
+	sa1111_driver_unregister(&SA1111_DRIVER);
+ error_sa1111:
+#endif
+#ifdef OF_PLATFORM_DRIVER
+	of_unregister_platform_driver(&OF_PLATFORM_DRIVER);
+ error_of_platform:
+#endif
+#ifdef PLATFORM_DRIVER
+	platform_driver_unregister(&PLATFORM_DRIVER);
+ error_platform:
+#endif
+#ifdef PS3_SYSTEM_BUS_DRIVER
+	ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
+ error_ps3:
+#endif
+	return retval;
+}
+module_init(ohci_hcd_mod_init);
+
+static void __exit ohci_hcd_mod_exit(void)
+{
+#ifdef PCI_DRIVER
+	pci_unregister_driver(&PCI_DRIVER);
+#endif
+#ifdef SA1111_DRIVER
+	sa1111_driver_unregister(&SA1111_DRIVER);
+#endif
+#ifdef OF_PLATFORM_DRIVER
+	of_unregister_platform_driver(&OF_PLATFORM_DRIVER);
+#endif
+#ifdef PLATFORM_DRIVER
+	platform_driver_unregister(&PLATFORM_DRIVER);
+#endif
+#ifdef PS3_SYSTEM_BUS_DRIVER
+	ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
+#endif
+}
+module_exit(ohci_hcd_mod_exit);
+