828d55c58c
add support for SuperH OHCI. supported CPU are: - SH7720 - SH7721 - SH7763 Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Acked-by: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
144 lines
3.3 KiB
C
144 lines
3.3 KiB
C
/*
|
|
* 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,
|
|
.hub_irq_enable = ohci_rhsc_enable,
|
|
#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,
|
|
},
|
|
};
|
|
|