![Bill Pemberton](/assets/img/avatar_default.png)
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Felipe Balbi <balbi@ti.com> Cc: Li Yang <leoli@freescale.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Wan ZongShun <mcuos.com@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
225 lines
4.7 KiB
C
225 lines
4.7 KiB
C
/*
|
|
* Generic platform ohci driver
|
|
*
|
|
* Copyright 2007 Michael Buesch <m@bues.ch>
|
|
* Copyright 2011-2012 Hauke Mehrtens <hauke@hauke-m.de>
|
|
*
|
|
* Derived from the OCHI-SSB driver
|
|
* Derived from the OHCI-PCI driver
|
|
* Copyright 1999 Roman Weissgaerber
|
|
* Copyright 2000-2002 David Brownell
|
|
* Copyright 1999 Linus Torvalds
|
|
* Copyright 1999 Gregory P. Smith
|
|
*
|
|
* Licensed under the GNU/GPL. See COPYING for details.
|
|
*/
|
|
#include <linux/platform_device.h>
|
|
#include <linux/usb/ohci_pdriver.h>
|
|
|
|
static int ohci_platform_reset(struct usb_hcd *hcd)
|
|
{
|
|
struct platform_device *pdev = to_platform_device(hcd->self.controller);
|
|
struct usb_ohci_pdata *pdata = pdev->dev.platform_data;
|
|
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
|
|
int err;
|
|
|
|
if (pdata->big_endian_desc)
|
|
ohci->flags |= OHCI_QUIRK_BE_DESC;
|
|
if (pdata->big_endian_mmio)
|
|
ohci->flags |= OHCI_QUIRK_BE_MMIO;
|
|
if (pdata->no_big_frame_no)
|
|
ohci->flags |= OHCI_QUIRK_FRAME_NO;
|
|
|
|
ohci_hcd_init(ohci);
|
|
|
|
if (pdata->num_ports)
|
|
ohci->num_ports = pdata->num_ports;
|
|
|
|
err = ohci_init(ohci);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int ohci_platform_start(struct usb_hcd *hcd)
|
|
{
|
|
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
|
|
int err;
|
|
|
|
err = ohci_run(ohci);
|
|
if (err < 0) {
|
|
ohci_err(ohci, "can't start\n");
|
|
ohci_stop(hcd);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static const struct hc_driver ohci_platform_hc_driver = {
|
|
.description = hcd_name,
|
|
.product_desc = "Generic Platform OHCI Controller",
|
|
.hcd_priv_size = sizeof(struct ohci_hcd),
|
|
|
|
.irq = ohci_irq,
|
|
.flags = HCD_MEMORY | HCD_USB11,
|
|
|
|
.reset = ohci_platform_reset,
|
|
.start = ohci_platform_start,
|
|
.stop = ohci_stop,
|
|
.shutdown = ohci_shutdown,
|
|
|
|
.urb_enqueue = ohci_urb_enqueue,
|
|
.urb_dequeue = ohci_urb_dequeue,
|
|
.endpoint_disable = ohci_endpoint_disable,
|
|
|
|
.get_frame_number = ohci_get_frame,
|
|
|
|
.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_platform_probe(struct platform_device *dev)
|
|
{
|
|
struct usb_hcd *hcd;
|
|
struct resource *res_mem;
|
|
struct usb_ohci_pdata *pdata = dev->dev.platform_data;
|
|
int irq;
|
|
int err = -ENOMEM;
|
|
|
|
if (!pdata) {
|
|
WARN_ON(1);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (usb_disabled())
|
|
return -ENODEV;
|
|
|
|
irq = platform_get_irq(dev, 0);
|
|
if (irq < 0) {
|
|
dev_err(&dev->dev, "no irq provided");
|
|
return irq;
|
|
}
|
|
|
|
res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
|
|
if (!res_mem) {
|
|
dev_err(&dev->dev, "no memory resource provided");
|
|
return -ENXIO;
|
|
}
|
|
|
|
if (pdata->power_on) {
|
|
err = pdata->power_on(dev);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
hcd = usb_create_hcd(&ohci_platform_hc_driver, &dev->dev,
|
|
dev_name(&dev->dev));
|
|
if (!hcd) {
|
|
err = -ENOMEM;
|
|
goto err_power;
|
|
}
|
|
|
|
hcd->rsrc_start = res_mem->start;
|
|
hcd->rsrc_len = resource_size(res_mem);
|
|
|
|
hcd->regs = devm_request_and_ioremap(&dev->dev, res_mem);
|
|
if (!hcd->regs) {
|
|
err = -ENOMEM;
|
|
goto err_put_hcd;
|
|
}
|
|
err = usb_add_hcd(hcd, irq, IRQF_SHARED);
|
|
if (err)
|
|
goto err_put_hcd;
|
|
|
|
platform_set_drvdata(dev, hcd);
|
|
|
|
return err;
|
|
|
|
err_put_hcd:
|
|
usb_put_hcd(hcd);
|
|
err_power:
|
|
if (pdata->power_off)
|
|
pdata->power_off(dev);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int ohci_platform_remove(struct platform_device *dev)
|
|
{
|
|
struct usb_hcd *hcd = platform_get_drvdata(dev);
|
|
struct usb_ohci_pdata *pdata = dev->dev.platform_data;
|
|
|
|
usb_remove_hcd(hcd);
|
|
usb_put_hcd(hcd);
|
|
platform_set_drvdata(dev, NULL);
|
|
|
|
if (pdata->power_off)
|
|
pdata->power_off(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
|
|
static int ohci_platform_suspend(struct device *dev)
|
|
{
|
|
struct usb_ohci_pdata *pdata = dev->platform_data;
|
|
struct platform_device *pdev =
|
|
container_of(dev, struct platform_device, dev);
|
|
|
|
if (pdata->power_suspend)
|
|
pdata->power_suspend(pdev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ohci_platform_resume(struct device *dev)
|
|
{
|
|
struct usb_hcd *hcd = dev_get_drvdata(dev);
|
|
struct usb_ohci_pdata *pdata = dev->platform_data;
|
|
struct platform_device *pdev =
|
|
container_of(dev, struct platform_device, dev);
|
|
|
|
if (pdata->power_on) {
|
|
int err = pdata->power_on(pdev);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
|
|
ohci_resume(hcd, false);
|
|
return 0;
|
|
}
|
|
|
|
#else /* !CONFIG_PM */
|
|
#define ohci_platform_suspend NULL
|
|
#define ohci_platform_resume NULL
|
|
#endif /* CONFIG_PM */
|
|
|
|
static const struct platform_device_id ohci_platform_table[] = {
|
|
{ "ohci-platform", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(platform, ohci_platform_table);
|
|
|
|
static const struct dev_pm_ops ohci_platform_pm_ops = {
|
|
.suspend = ohci_platform_suspend,
|
|
.resume = ohci_platform_resume,
|
|
};
|
|
|
|
static struct platform_driver ohci_platform_driver = {
|
|
.id_table = ohci_platform_table,
|
|
.probe = ohci_platform_probe,
|
|
.remove = ohci_platform_remove,
|
|
.shutdown = usb_hcd_platform_shutdown,
|
|
.driver = {
|
|
.owner = THIS_MODULE,
|
|
.name = "ohci-platform",
|
|
.pm = &ohci_platform_pm_ops,
|
|
}
|
|
};
|