2 * OHCI HCD (Host Controller Driver) for USB.
4 * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
5 * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
6 * (C) Copyright 2002 Hewlett-Packard Company
8 * Bus Glue for AMD Alchemy Au1xxx
10 * Written by Christopher Hoover <ch@hpl.hp.com>
11 * Based on fragments of previous driver by Rusell King et al.
13 * Modified for LH7A404 from ahcd-sa1111.c
14 * by Durgesh Pattamatta <pattamattad@sharpsec.com>
15 * Modified for AMD Alchemy Au1xxx
16 * by Matt Porter <mporter@kernel.crashing.org>
18 * This file is licenced under the GPL.
21 #include <linux/platform_device.h>
22 #include <linux/signal.h>
24 #include <asm/bootinfo.h>
25 #include <asm/mach-adm5120/adm5120_defs.h>
28 #define HCD_DBG(f, a...) printk(KERN_DEBUG "%s: " f, hcd_name, ## a)
30 #define HCD_DBG(f, a...) do {} while (0)
32 #define HCD_ERR(f, a...) printk(KERN_ERR "%s: " f, hcd_name, ## a)
33 #define HCD_INFO(f, a...) printk(KERN_INFO "%s: " f, hcd_name, ## a)
35 /*-------------------------------------------------------------------------*/
37 static int admhc_adm5120_probe(const struct hc_driver *driver,
38 struct platform_device *dev)
43 struct resource *regs;
46 regs = platform_get_resource(dev, IORESOURCE_MEM, 0);
48 HCD_DBG("no IOMEM resource found\n");
52 irq = platform_get_irq(dev, 0);
54 HCD_DBG("no IRQ resource found\n");
58 hcd = usb_create_hcd(driver, &dev->dev, "ADM5120");
62 hcd->rsrc_start = regs->start;
63 hcd->rsrc_len = regs->end - regs->start + 1;
65 if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
66 HCD_DBG("request_mem_region failed\n");
71 hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
73 HCD_DBG("ioremap failed\n");
78 admhc_hcd_init(hcd_to_admhcd(hcd));
80 retval = usb_add_hcd(hcd, irq, IRQF_DISABLED);
89 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
96 /* may be called without controller electrically present */
97 /* may be called with controller, bus, and devices active */
99 static void admhc_adm5120_remove(struct usb_hcd *hcd,
100 struct platform_device *dev)
104 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
108 /*-------------------------------------------------------------------------*/
111 admhc_adm5120_start(struct usb_hcd *hcd)
113 struct admhcd *ahcd = hcd_to_admhcd (hcd);
116 ret = admhc_init(ahcd);
118 HCD_ERR("unable to init %s\n", hcd->self.bus_name);
122 ret = admhc_run(ahcd);
124 HCD_ERR("unable to run %s\n", hcd->self.bus_name);
136 /*-------------------------------------------------------------------------*/
138 static const struct hc_driver adm5120_hc_driver = {
139 .description = hcd_name,
140 .product_desc = "ADM5120 built-in USB 1.1 Host Controller",
141 .hcd_priv_size = sizeof(struct admhcd),
144 * generic hardware linkage
147 .flags = HCD_USB11 | HCD_MEMORY,
150 * basic lifecycle operations
152 .start = admhc_adm5120_start,
154 .shutdown = admhc_shutdown,
157 * managing i/o requests and associated device resources
159 .urb_enqueue = admhc_urb_enqueue,
160 .urb_dequeue = admhc_urb_dequeue,
161 .endpoint_disable = admhc_endpoint_disable,
166 .get_frame_number = admhc_get_frame_number,
171 .hub_status_data = admhc_hub_status_data,
172 .hub_control = admhc_hub_control,
173 .hub_irq_enable = admhc_hub_irq_enable,
175 .bus_suspend = admhc_bus_suspend,
176 .bus_resume = admhc_bus_resume,
178 .start_port_reset = admhc_start_port_reset,
181 /*-------------------------------------------------------------------------*/
183 static int usb_hcd_adm5120_probe(struct platform_device *pdev)
187 if (mips_machgroup != MACH_GROUP_ADM5120)
190 ret = admhc_adm5120_probe(&adm5120_hc_driver, pdev);
195 static int usb_hcd_adm5120_remove(struct platform_device *pdev)
197 struct usb_hcd *hcd = platform_get_drvdata(pdev);
199 admhc_adm5120_remove(hcd, pdev);
205 static int usb_hcd_adm5120_suspend(struct platform_device *dev)
207 struct usb_hcd *hcd = platform_get_drvdata(dev);
212 static int usb_hcd_adm5120_resume(struct platform_device *dev)
214 struct usb_hcd *hcd = platform_get_drvdata(dev);
219 #define usb_hcd_adm5120_suspend NULL
220 #define usb_hcd_adm5120_resume NULL
221 #endif /* CONFIG_PM */
223 static struct platform_driver usb_hcd_adm5120_driver = {
224 .probe = usb_hcd_adm5120_probe,
225 .remove = usb_hcd_adm5120_remove,
226 .shutdown = usb_hcd_platform_shutdown,
227 .suspend = usb_hcd_adm5120_suspend,
228 .resume = usb_hcd_adm5120_resume,
230 .name = "adm5120-hcd",
231 .owner = THIS_MODULE,