2 * Generic platform ohci driver
4 * Copyright 2007 Michael Buesch <m@bues.ch>
5 * Copyright 2011-2012 Hauke Mehrtens <hauke@hauke-m.de>
7 * Derived from the OCHI-SSB driver
8 * Derived from the OHCI-PCI driver
9 * Copyright 1999 Roman Weissgaerber
10 * Copyright 2000-2002 David Brownell
11 * Copyright 1999 Linus Torvalds
12 * Copyright 1999 Gregory P. Smith
14 * Licensed under the GNU/GPL. See COPYING for details.
16 #include <linux/platform_device.h>
17 #include <linux/usb/ohci_pdriver.h>
19 static int ohci_platform_reset(struct usb_hcd *hcd)
21 struct platform_device *pdev = to_platform_device(hcd->self.controller);
22 struct usb_ohci_pdata *pdata = pdev->dev.platform_data;
23 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
26 if (pdata->big_endian_desc)
27 ohci->flags |= OHCI_QUIRK_BE_DESC;
28 if (pdata->big_endian_mmio)
29 ohci->flags |= OHCI_QUIRK_BE_MMIO;
30 if (pdata->no_big_frame_no)
31 ohci->flags |= OHCI_QUIRK_FRAME_NO;
36 ohci->num_ports = pdata->num_ports;
38 err = ohci_init(ohci);
43 static int ohci_platform_start(struct usb_hcd *hcd)
45 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
50 ohci_err(ohci, "can't start\n");
57 static const struct hc_driver ohci_platform_hc_driver = {
58 .description = hcd_name,
59 .product_desc = "Generic Platform OHCI Controller",
60 .hcd_priv_size = sizeof(struct ohci_hcd),
63 .flags = HCD_MEMORY | HCD_USB11,
65 .reset = ohci_platform_reset,
66 .start = ohci_platform_start,
68 .shutdown = ohci_shutdown,
70 .urb_enqueue = ohci_urb_enqueue,
71 .urb_dequeue = ohci_urb_dequeue,
72 .endpoint_disable = ohci_endpoint_disable,
74 .get_frame_number = ohci_get_frame,
76 .hub_status_data = ohci_hub_status_data,
77 .hub_control = ohci_hub_control,
79 .bus_suspend = ohci_bus_suspend,
80 .bus_resume = ohci_bus_resume,
83 .start_port_reset = ohci_start_port_reset,
86 static int ohci_platform_probe(struct platform_device *dev)
89 struct resource *res_mem;
90 struct usb_ohci_pdata *pdata = dev->dev.platform_data;
102 irq = platform_get_irq(dev, 0);
104 dev_err(&dev->dev, "no irq provided");
108 res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
110 dev_err(&dev->dev, "no memory resource provided");
114 if (pdata->power_on) {
115 err = pdata->power_on(dev);
120 hcd = usb_create_hcd(&ohci_platform_hc_driver, &dev->dev,
121 dev_name(&dev->dev));
127 hcd->rsrc_start = res_mem->start;
128 hcd->rsrc_len = resource_size(res_mem);
130 hcd->regs = devm_request_and_ioremap(&dev->dev, res_mem);
135 err = usb_add_hcd(hcd, irq, IRQF_SHARED);
139 platform_set_drvdata(dev, hcd);
146 if (pdata->power_off)
147 pdata->power_off(dev);
152 static int ohci_platform_remove(struct platform_device *dev)
154 struct usb_hcd *hcd = platform_get_drvdata(dev);
155 struct usb_ohci_pdata *pdata = dev->dev.platform_data;
159 platform_set_drvdata(dev, NULL);
161 if (pdata->power_off)
162 pdata->power_off(dev);
169 static int ohci_platform_suspend(struct device *dev)
171 struct usb_ohci_pdata *pdata = dev->platform_data;
172 struct platform_device *pdev =
173 container_of(dev, struct platform_device, dev);
175 if (pdata->power_suspend)
176 pdata->power_suspend(pdev);
181 static int ohci_platform_resume(struct device *dev)
183 struct usb_hcd *hcd = dev_get_drvdata(dev);
184 struct usb_ohci_pdata *pdata = dev->platform_data;
185 struct platform_device *pdev =
186 container_of(dev, struct platform_device, dev);
188 if (pdata->power_on) {
189 int err = pdata->power_on(pdev);
194 ohci_resume(hcd, false);
198 #else /* !CONFIG_PM */
199 #define ohci_platform_suspend NULL
200 #define ohci_platform_resume NULL
201 #endif /* CONFIG_PM */
203 static const struct platform_device_id ohci_platform_table[] = {
204 { "ohci-platform", 0 },
207 MODULE_DEVICE_TABLE(platform, ohci_platform_table);
209 static const struct dev_pm_ops ohci_platform_pm_ops = {
210 .suspend = ohci_platform_suspend,
211 .resume = ohci_platform_resume,
214 static struct platform_driver ohci_platform_driver = {
215 .id_table = ohci_platform_table,
216 .probe = ohci_platform_probe,
217 .remove = ohci_platform_remove,
218 .shutdown = usb_hcd_platform_shutdown,
220 .owner = THIS_MODULE,
221 .name = "ohci-platform",
222 .pm = &ohci_platform_pm_ops,