1/*
2 * OHCI HCD (Host Controller Driver) for USB.
3 *
4 * Copyright (C) 2008 Renesas Solutions Corp.
5 *
6 * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2 of the License.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
20 *
21 */
22
23#include <linux/platform_device.h>
24
25static int ohci_sh_start(struct usb_hcd *hcd)
26{
27	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
28
29	ohci_hcd_init(ohci);
30	ohci_init(ohci);
31	ohci_run(ohci);
32	return 0;
33}
34
35static const struct hc_driver ohci_sh_hc_driver = {
36	.description =		hcd_name,
37	.product_desc =		"SuperH OHCI",
38	.hcd_priv_size =	sizeof(struct ohci_hcd),
39
40	/*
41	 * generic hardware linkage
42	 */
43	.irq =			ohci_irq,
44	.flags =		HCD_USB11 | HCD_MEMORY,
45
46	/*
47	 * basic lifecycle operations
48	 */
49	.start =		ohci_sh_start,
50	.stop =			ohci_stop,
51	.shutdown =		ohci_shutdown,
52
53	/*
54	 * managing i/o requests and associated device resources
55	 */
56	.urb_enqueue =		ohci_urb_enqueue,
57	.urb_dequeue =		ohci_urb_dequeue,
58	.endpoint_disable =	ohci_endpoint_disable,
59
60	/*
61	 * scheduling support
62	 */
63	.get_frame_number =	ohci_get_frame,
64
65	/*
66	 * root hub support
67	 */
68	.hub_status_data =	ohci_hub_status_data,
69	.hub_control =		ohci_hub_control,
70#ifdef	CONFIG_PM
71	.bus_suspend =		ohci_bus_suspend,
72	.bus_resume =		ohci_bus_resume,
73#endif
74	.start_port_reset =	ohci_start_port_reset,
75};
76
77/*-------------------------------------------------------------------------*/
78
79static int ohci_hcd_sh_probe(struct platform_device *pdev)
80{
81	struct resource *res = NULL;
82	struct usb_hcd *hcd = NULL;
83	int irq = -1;
84	int ret;
85
86	if (usb_disabled())
87		return -ENODEV;
88
89	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
90	if (!res) {
91		err("platform_get_resource error.");
92		return -ENODEV;
93	}
94
95	irq = platform_get_irq(pdev, 0);
96	if (irq < 0) {
97		err("platform_get_irq error.");
98		return -ENODEV;
99	}
100
101	/* initialize hcd */
102	hcd = usb_create_hcd(&ohci_sh_hc_driver, &pdev->dev, (char *)hcd_name);
103	if (!hcd) {
104		err("Failed to create hcd");
105		return -ENOMEM;
106	}
107
108	hcd->regs = (void __iomem *)res->start;
109	hcd->rsrc_start = res->start;
110	hcd->rsrc_len = resource_size(res);
111	ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
112	if (ret != 0) {
113		err("Failed to add hcd");
114		usb_put_hcd(hcd);
115		return ret;
116	}
117
118	return ret;
119}
120
121static int ohci_hcd_sh_remove(struct platform_device *pdev)
122{
123	struct usb_hcd *hcd = platform_get_drvdata(pdev);
124
125	usb_remove_hcd(hcd);
126	usb_put_hcd(hcd);
127
128	return 0;
129}
130
131static struct platform_driver ohci_hcd_sh_driver = {
132	.probe		= ohci_hcd_sh_probe,
133	.remove		= ohci_hcd_sh_remove,
134	.shutdown	= usb_hcd_platform_shutdown,
135	.driver		= {
136		.name	= "sh_ohci",
137		.owner	= THIS_MODULE,
138	},
139};
140
141MODULE_ALIAS("platform:sh_ohci");
142