/*
* OHCI HCD (Host Controller Driver) for USB.
*
* Copyright (C) 2008 Renesas Solutions Corp.
*
* Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <linux/platform_device.h>
static int ohci_sh_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
ohci_hcd_init(ohci);
ohci_init(ohci);
ohci_run(ohci);
hcd->state = HC_STATE_RUNNING;
return 0;
}
static const struct hc_driver ohci_sh_hc_driver = {
.description = hcd_name,
.product_desc = "SuperH OHCI",
.hcd_priv_size = sizeof(struct ohci_hcd),
/*
* generic hardware linkage
*/
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
/*
* basic lifecycle operations
*/
.start = ohci_sh_start,
.stop = ohci_stop,
.shutdown = ohci_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,
};
/*-------------------------------------------------------------------------*/
#define resource_len(r) (((r)->end - (r)->start) + 1)
static int ohci_hcd_sh_probe(struct platform_device *pdev)
{
struct resource *res = NULL;
struct usb_hcd *hcd = NULL;
int irq = -1;
int ret;
if (usb_disabled())
return -ENODEV;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
err("platform_get_resource error.");
return -ENODEV;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
err("platform_get_irq error.");
return -ENODEV;
}
/* initialize hcd */
hcd = usb_create_hcd(&ohci_sh_hc_driver, &pdev->dev, (char *)hcd_name);
if (!hcd) {
err("Failed to create hcd");
return -ENOMEM;
}
hcd->regs = (void __iomem *)res->start;
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_len(res);
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
if (ret != 0) {
err("Failed to add hcd");
usb_put_hcd(hcd);
return ret;
}
return ret;
}
static int ohci_hcd_sh_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
usb_remove_hcd(hcd);
usb_put_hcd(hcd);
return 0;
}
static struct platform_driver ohci_hcd_sh_driver = {
.probe = ohci_hcd_sh_probe,
.remove = ohci_hcd_sh_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "sh_ohci",
.owner = THIS_MODULE,
},
};
MODULE_ALIAS("platform:sh_ohci");
