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Commit ad75a410 authored by Geoff Levand's avatar Geoff Levand Committed by Greg Kroah-Hartman
Browse files

USB: ps3 ehci bus glue 



USB EHCI driver bus glue for the PS3 game console.

Signed-off-by: default avatarGeoff Levand <geoffrey.levand@am.sony.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent b3ebd522

arch/powerpc/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -529,6 +529,8 @@ config PPC_PS3 
	bool "Sony PS3 (incomplete)"

	depends on PPC_MULTIPLATFORM && PPC64

	select PPC_CELL

	select USB_ARCH_HAS_EHCI

	select USB_EHCI_BIG_ENDIAN_MMIO

	help

	  This option enables support for the Sony PS3 game console

	  and other platforms using the PS3 hypervisor.

drivers/usb/host/ehci-hcd.c

+24 −1
Original line number Diff line number Diff line
@@ -907,7 +907,13 @@ MODULE_LICENSE ("GPL"); 
#define	PLATFORM_DRIVER		ehci_hcd_au1xxx_driver

#endif



#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER)

#ifdef CONFIG_PPC_PS3

#include "ehci-ps3.c"

#define	PS3_SYSTEM_BUS_DRIVER	ps3_ehci_sb_driver

#endif



#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \

    !defined(PS3_SYSTEM_BUS_DRIVER)

#error "missing bus glue for ehci-hcd"

#endif
@@ -932,6 +938,20 @@ static int __init ehci_hcd_init(void) 
#ifdef PLATFORM_DRIVER

		platform_driver_unregister(&PLATFORM_DRIVER);

#endif

		return retval;

	}

#endif



#ifdef PS3_SYSTEM_BUS_DRIVER

	retval = ps3_system_bus_driver_register(&PS3_SYSTEM_BUS_DRIVER);

	if (retval < 0) {

#ifdef PLATFORM_DRIVER

		platform_driver_unregister(&PLATFORM_DRIVER);

#endif

#ifdef PCI_DRIVER

		pci_unregister_driver(&PCI_DRIVER);

#endif

		return retval;

	}

#endif
@@ -947,6 +967,9 @@ static void __exit ehci_hcd_cleanup(void) 
#ifdef PCI_DRIVER

	pci_unregister_driver(&PCI_DRIVER);

#endif

#ifdef PS3_SYSTEM_BUS_DRIVER

	ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER);

#endif

}

module_exit(ehci_hcd_cleanup);

drivers/usb/host/ehci-ps3.c

0 → 100644
+193 −0
Original line number Diff line number Diff line 
/*

 *  PS3 EHCI Host Controller driver

 *

 *  Copyright (C) 2006 Sony Computer Entertainment Inc.

 *  Copyright 2006 Sony Corp.

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; version 2 of the License.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */



#include <asm/ps3.h>



static int ps3_ehci_hc_reset(struct usb_hcd *hcd)

{

	int result;

	struct ehci_hcd *ehci = hcd_to_ehci(hcd);



	ehci->big_endian_mmio = 1;



	ehci->caps = hcd->regs;

	ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci,

		&ehci->caps->hc_capbase));



	dbg_hcs_params(ehci, "reset");

	dbg_hcc_params(ehci, "reset");



	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);



	result = ehci_halt(ehci);



	if (result)

		return result;



	result = ehci_init(hcd);



	if (result)

		return result;



	ehci_port_power(ehci, 0);



	return result;

}



static const struct hc_driver ps3_ehci_hc_driver = {

	.description		= hcd_name,

	.product_desc		= "PS3 EHCI Host Controller",

	.hcd_priv_size		= sizeof(struct ehci_hcd),

	.irq			= ehci_irq,

	.flags			= HCD_MEMORY | HCD_USB2,

	.reset			= ps3_ehci_hc_reset,

	.start			= ehci_run,

	.stop			= ehci_stop,

	.shutdown		= ehci_shutdown,

	.urb_enqueue		= ehci_urb_enqueue,

	.urb_dequeue		= ehci_urb_dequeue,

	.endpoint_disable	= ehci_endpoint_disable,

	.get_frame_number	= ehci_get_frame,

	.hub_status_data	= ehci_hub_status_data,

	.hub_control		= ehci_hub_control,

#if defined(CONFIG_PM)

	.bus_suspend		= ehci_bus_suspend,

	.bus_resume		= ehci_bus_resume,

#endif

};



#if !defined(DEBUG)

#undef dev_dbg

static inline int __attribute__ ((format (printf, 2, 3))) dev_dbg(

	const struct device *_dev, const char *fmt, ...) {return 0;}

#endif





static int ps3_ehci_sb_probe(struct ps3_system_bus_device *dev)

{

	int result;

	struct usb_hcd *hcd;

	unsigned int virq;

	static u64 dummy_mask = DMA_32BIT_MASK;



	if (usb_disabled()) {

		result = -ENODEV;

		goto fail_start;

	}



	result = ps3_mmio_region_create(dev->m_region);



	if (result) {

		dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",

			__func__, __LINE__);

		result = -EPERM;

		goto fail_mmio;

	}



	dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,

		__LINE__, dev->m_region->lpar_addr);



	result = ps3_alloc_io_irq(dev->interrupt_id, &virq);



	if (result) {

		dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",

			__func__, __LINE__, virq);

		result = -EPERM;

		goto fail_irq;

	}



	dev->core.power.power_state = PMSG_ON;

	dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */



	hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev->core.bus_id);



	if (!hcd) {

		dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,

			__LINE__);

		result = -ENOMEM;

		goto fail_create_hcd;

	}



	hcd->rsrc_start = dev->m_region->lpar_addr;

	hcd->rsrc_len = dev->m_region->len;

	hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);



	if (!hcd->regs) {

		dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,

			__LINE__);

		result = -EPERM;

		goto fail_ioremap;

	}



	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,

		(unsigned long)hcd->rsrc_start);

	dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len   %lxh\n", __func__, __LINE__,

		(unsigned long)hcd->rsrc_len);

	dev_dbg(&dev->core, "%s:%d: hcd->regs       %lxh\n", __func__, __LINE__,

		(unsigned long)hcd->regs);

	dev_dbg(&dev->core, "%s:%d: virq            %lu\n", __func__, __LINE__,

		(unsigned long)virq);



	ps3_system_bus_set_driver_data(dev, hcd);



	result = usb_add_hcd(hcd, virq, IRQF_DISABLED);



	if (result) {

		dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",

			__func__, __LINE__, result);

		goto fail_add_hcd;

	}



	return result;



fail_add_hcd:

	iounmap(hcd->regs);

fail_ioremap:

	usb_put_hcd(hcd);

fail_create_hcd:

	ps3_free_io_irq(virq);

fail_irq:

	ps3_free_mmio_region(dev->m_region);

fail_mmio:

fail_start:

	return result;

}



static int ps3_ehci_sb_remove(struct ps3_system_bus_device *dev)

{

	struct usb_hcd *hcd =

		(struct usb_hcd *)ps3_system_bus_get_driver_data(dev);



	usb_put_hcd(hcd);

	ps3_system_bus_set_driver_data(dev, NULL);



	return 0;

}



MODULE_ALIAS("ps3-ehci");



static struct ps3_system_bus_driver ps3_ehci_sb_driver = {

	.match_id = PS3_MATCH_ID_EHCI,

	.core = {

		.name = "ps3-ehci-driver",

	},

	.probe = ps3_ehci_sb_probe,

	.remove = ps3_ehci_sb_remove,

};