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/*
* Copyright (C) 2009 - 2010 Broadcom Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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 "usb-brcm.h"
static struct platform_driver ohci_hcd_brcm_driver;
#define PLATFORM_DRIVER ohci_hcd_brcm_driver
#include "ohci-hcd.c"
/* catch unwanted redefinitions */
#define CONFIG_PCI 0
/* for global USB settings, see arch/mips/brcmstb/bchip.c */
static int ohci_brcm_reset(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
ohci->flags |= OHCI_QUIRK_BE_MMIO;
distrust_firmware = 0;
ohci_hcd_init(ohci);
return ohci_init(ohci);
}
static int ohci_brcm_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct ohci_regs __iomem *regs;
regs = hcd->regs;
ohci_writel(ohci, 1, &regs->cmdstatus);
ohci_readl(ohci, &regs->cmdstatus);
mdelay(10);
ohci_hcd_init(ohci);
ohci_init(ohci);
ohci_run(ohci);
hcd->state = HC_STATE_RUNNING;
return 0;
}
static void ohci_brcm_shutdown(struct usb_hcd *hcd)
{
if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))
ohci_shutdown(hcd);
}
#ifdef CONFIG_PM
static int ohci_brcm_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
unsigned long flags;
int rc = 0;
/* Root hub was already suspended. Disable irq emission and
* mark HW unaccessible, bail out if RH has been resumed. Use
* the spinlock to properly synchronize with possible pending
* RH suspend or resume activity.
*/
spin_lock_irqsave(&ohci->lock, flags);
if (hcd->state != HC_STATE_SUSPENDED) {
rc = -EINVAL;
goto bail;
}
ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);
(void)ohci_readl(ohci, &ohci->regs->intrdisable);
brcm_usb_suspend(hcd);
bail:
spin_unlock_irqrestore(&ohci->lock, flags);
return rc;
}
static int ohci_brcm_resume(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
brcm_usb_resume(hcd);
ohci_usb_reset(hcd_to_ohci(hcd));
ohci_finish_controller_resume(hcd);
return 0;
}
static const struct dev_pm_ops brcm_ohci_pmops = {
.suspend = ohci_brcm_suspend,
.resume = ohci_brcm_resume,
};
#define BRCM_OHCI_PMOPS (&brcm_ohci_pmops)
#else
#define BRCM_OHCI_PMOPS NULL
#endif
static const struct hc_driver ohci_brcm_hc_driver = {
.description = hcd_name,
.product_desc = "Broadcom STB OHCI",
.hcd_priv_size = sizeof(struct ohci_hcd),
/*
* generic hardware linkage
*/
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
/*
* basic lifecycle operations
*/
.reset = ohci_brcm_reset,
.start = ohci_brcm_start,
.stop = ohci_stop,
.shutdown = ohci_brcm_shutdown,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
/*
* scheduling support
*/
.get_frame_number = ohci_get_frame,
/*
* root hub support
*/
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
/*-------------------------------------------------------------------------*/
static int ohci_hcd_brcm_probe(struct platform_device *pdev)
{
return brcm_usb_probe(pdev, hcd_name, &ohci_brcm_hc_driver);
}
static int ohci_hcd_brcm_remove(struct platform_device *pdev)
{
return brcm_usb_remove(pdev);
}
static struct platform_driver ohci_hcd_brcm_driver = {
.probe = ohci_hcd_brcm_probe,
.remove = ohci_hcd_brcm_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "ohci-brcm",
.owner = THIS_MODULE,
.pm = BRCM_OHCI_PMOPS,
},
};
MODULE_ALIAS("ohci-brcm");