Felipe:
This makes ehci-pci a separate module that depends on ehci-hcd. It's
very straightforward; the only awkward thing is the way the driver
entries have to be overridden by hand. I couldn't think of any better
way of doing it. This is the penalty we pay for not using an
object-oriented programming language. :-)
Alan Stern
Index: usb-3.6/drivers/usb/host/Kconfig
===================================================================
--- usb-3.6.orig/drivers/usb/host/Kconfig
+++ usb-3.6/drivers/usb/host/Kconfig
@@ -95,6 +95,11 @@ config USB_EHCI_TT_NEWSCHED
If unsure, say Y.
+config USB_EHCI_PCI
+ tristate
+ depends on USB_EHCI_HCD && PCI
+ default y
+
config USB_EHCI_HCD_PMC_MSP
tristate "EHCI support for on-chip PMC MSP71xx USB controller"
depends on USB_EHCI_HCD && MSP_HAS_USB
Index: usb-3.6/drivers/usb/host/Makefile
===================================================================
--- usb-3.6.orig/drivers/usb/host/Makefile
+++ usb-3.6/drivers/usb/host/Makefile
@@ -24,6 +24,8 @@ obj-$(CONFIG_USB_WHCI_HCD) += whci/
obj-$(CONFIG_PCI) += pci-quirks.o
obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o
+obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o
+
obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o
obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o
obj-$(CONFIG_USB_ISP1362_HCD) += isp1362-hcd.o
Index: usb-3.6/drivers/usb/host/ehci-hcd.c
===================================================================
--- usb-3.6.orig/drivers/usb/host/ehci-hcd.c
+++ usb-3.6/drivers/usb/host/ehci-hcd.c
@@ -1276,11 +1276,6 @@ MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_AUTHOR (DRIVER_AUTHOR);
MODULE_LICENSE ("GPL");
-#ifdef CONFIG_PCI
-#include "ehci-pci.c"
-#define PCI_DRIVER ehci_pci_driver
-#endif
-
#ifdef CONFIG_USB_EHCI_FSL
#include "ehci-fsl.c"
#define PLATFORM_DRIVER ehci_fsl_driver
@@ -1416,7 +1411,7 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ehci_platform_driver
#endif
-#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
+#if !defined(CONFIG_USB_EHCI_PCI) && !defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
!defined(XILINX_OF_PLATFORM_DRIVER)
#error "missing bus glue for ehci-hcd"
@@ -1455,12 +1450,6 @@ static int __init ehci_hcd_init(void)
goto clean0;
#endif
-#ifdef PCI_DRIVER
- retval = pci_register_driver(&PCI_DRIVER);
- if (retval < 0)
- goto clean1;
-#endif
-
#ifdef PS3_SYSTEM_BUS_DRIVER
retval = ps3_ehci_driver_register(&PS3_SYSTEM_BUS_DRIVER);
if (retval < 0)
@@ -1492,10 +1481,6 @@ clean3:
ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
clean2:
#endif
-#ifdef PCI_DRIVER
- pci_unregister_driver(&PCI_DRIVER);
-clean1:
-#endif
#ifdef PLATFORM_DRIVER
platform_driver_unregister(&PLATFORM_DRIVER);
clean0:
@@ -1521,9 +1506,6 @@ static void __exit ehci_hcd_cleanup(void
#ifdef PLATFORM_DRIVER
platform_driver_unregister(&PLATFORM_DRIVER);
#endif
-#ifdef PCI_DRIVER
- pci_unregister_driver(&PCI_DRIVER);
-#endif
#ifdef PS3_SYSTEM_BUS_DRIVER
ps3_ehci_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);
#endif
Index: usb-3.6/drivers/usb/host/ehci-pci.c
===================================================================
--- usb-3.6.orig/drivers/usb/host/ehci-pci.c
+++ usb-3.6/drivers/usb/host/ehci-pci.c
@@ -18,9 +18,18 @@
* Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#ifndef CONFIG_PCI
-#error "This file is PCI bus glue. CONFIG_PCI must be defined."
-#endif
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+
+#include "ehci.h"
+#include "pci-quirks.h"
+
+#define DRIVER_DESC "EHCI PCI platform driver"
+
+static const char hcd_name[] = "ehci-pci";
/* defined here to avoid adding to pci_ids.h for single instance use */
#define PCI_DEVICE_ID_INTEL_CE4100_USB 0x2e70
@@ -377,7 +386,11 @@ static int ehci_pci_resume(struct usb_hc
(void) ehci_pci_reinit(ehci, pdev);
return 0;
}
-#endif
+#else
+
+#define ehci_pci_suspend NULL
+#define ehci_pci_resume NULL
+#endif /* CONFIG_PM */
static int ehci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
{
@@ -395,59 +408,7 @@ static int ehci_update_device(struct usb
return rc;
}
-static const struct hc_driver ehci_pci_hc_driver = {
- .description = hcd_name,
- .product_desc = "EHCI Host Controller",
- .hcd_priv_size = sizeof(struct ehci_hcd),
-
- /*
- * generic hardware linkage
- */
- .irq = ehci_irq,
- .flags = HCD_MEMORY | HCD_USB2,
-
- /*
- * basic lifecycle operations
- */
- .reset = ehci_pci_setup,
- .start = ehci_run,
-#ifdef CONFIG_PM
- .pci_suspend = ehci_pci_suspend,
- .pci_resume = ehci_pci_resume,
-#endif
- .stop = ehci_stop,
- .shutdown = ehci_shutdown,
-
- /*
- * managing i/o requests and associated device resources
- */
- .urb_enqueue = ehci_urb_enqueue,
- .urb_dequeue = ehci_urb_dequeue,
- .endpoint_disable = ehci_endpoint_disable,
- .endpoint_reset = ehci_endpoint_reset,
-
- /*
- * scheduling support
- */
- .get_frame_number = ehci_get_frame,
-
- /*
- * root hub support
- */
- .hub_status_data = ehci_hub_status_data,
- .hub_control = ehci_hub_control,
- .bus_suspend = ehci_bus_suspend,
- .bus_resume = ehci_bus_resume,
- .relinquish_port = ehci_relinquish_port,
- .port_handed_over = ehci_port_handed_over,
-
- /*
- * call back when device connected and addressed
- */
- .update_device = ehci_update_device,
-
- .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
-};
+static struct hc_driver ehci_pci_hc_driver;
/*-------------------------------------------------------------------------*/
@@ -466,7 +427,7 @@ MODULE_DEVICE_TABLE(pci, pci_ids);
/* pci driver glue; this is a "new style" PCI driver module */
static struct pci_driver ehci_pci_driver = {
- .name = (char *) hcd_name,
+ .name = hcd_name,
.id_table = pci_ids,
.probe = usb_hcd_pci_probe,
@@ -479,3 +440,33 @@ static struct pci_driver ehci_pci_driver
},
#endif
};
+
+static int __init ehci_pci_init(void)
+{
+ if (usb_disabled())
+ return -ENODEV;
+
+ pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+ /* Copy the generic driver, then add our own functions and overrides */
+ ehci_pci_hc_driver = ehci_hc_driver;
+ ehci_pci_hc_driver.description = hcd_name;
+ ehci_pci_hc_driver.reset = ehci_pci_setup;
+ ehci_pci_hc_driver.pci_suspend = ehci_pci_suspend;
+ ehci_pci_hc_driver.pci_resume = ehci_pci_resume;
+ ehci_pci_hc_driver.update_device = ehci_update_device;
+
+ return pci_register_driver(&ehci_pci_driver);
+}
+module_init(ehci_pci_init);
+
+static void __exit ehci_pci_cleanup(void)
+{
+ pci_unregister_driver(&ehci_pci_driver);
+}
+module_exit(ehci_pci_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("David Brownell");
+MODULE_AUTHOR("Alan Stern");
+MODULE_LICENSE("GPL");
--
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