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	hcd->state = HC_STATE_RUNNING;
 33	return 0;
 34}
 35
 36static const struct hc_driver ohci_sh_hc_driver = {
 37	.description =		hcd_name,
 38	.product_desc =		"SuperH OHCI",
 39	.hcd_priv_size =	sizeof(struct ohci_hcd),
 40
 41	/*
 42	 * generic hardware linkage
 43	 */
 44	.irq =			ohci_irq,
 45	.flags =		HCD_USB11 | HCD_MEMORY,
 46
 47	/*
 48	 * basic lifecycle operations
 49	 */
 50	.start =		ohci_sh_start,
 51	.stop =			ohci_stop,
 52	.shutdown =		ohci_shutdown,
 53
 54	/*
 55	 * managing i/o requests and associated device resources
 56	 */
 57	.urb_enqueue =		ohci_urb_enqueue,
 58	.urb_dequeue =		ohci_urb_dequeue,
 59	.endpoint_disable =	ohci_endpoint_disable,
 60
 61	/*
 62	 * scheduling support
 63	 */
 64	.get_frame_number =	ohci_get_frame,
 65
 66	/*
 67	 * root hub support
 68	 */
 69	.hub_status_data =	ohci_hub_status_data,
 70	.hub_control =		ohci_hub_control,
 71#ifdef	CONFIG_PM
 72	.bus_suspend =		ohci_bus_suspend,
 73	.bus_resume =		ohci_bus_resume,
 74#endif
 75	.start_port_reset =	ohci_start_port_reset,
 76};
 77
 78/*-------------------------------------------------------------------------*/
 79
 80static int ohci_hcd_sh_probe(struct platform_device *pdev)
 81{
 82	struct resource *res = NULL;
 83	struct usb_hcd *hcd = NULL;
 84	int irq = -1;
 85	int ret;
 86
 87	if (usb_disabled())
 88		return -ENODEV;
 89
 90	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 91	if (!res) {
 92		err("platform_get_resource error.");
 93		return -ENODEV;
 94	}
 95
 96	irq = platform_get_irq(pdev, 0);
 97	if (irq < 0) {
 98		err("platform_get_irq error.");
 99		return -ENODEV;
100	}
101
102	/* initialize hcd */
103	hcd = usb_create_hcd(&ohci_sh_hc_driver, &pdev->dev, (char *)hcd_name);
104	if (!hcd) {
105		err("Failed to create hcd");
106		return -ENOMEM;
107	}
108
109	hcd->regs = (void __iomem *)res->start;
110	hcd->rsrc_start = res->start;
111	hcd->rsrc_len = resource_size(res);
112	ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
113	if (ret != 0) {
114		err("Failed to add hcd");
115		usb_put_hcd(hcd);
116		return ret;
117	}
118
119	return ret;
120}
121
122static int ohci_hcd_sh_remove(struct platform_device *pdev)
123{
124	struct usb_hcd *hcd = platform_get_drvdata(pdev);
125
126	usb_remove_hcd(hcd);
127	usb_put_hcd(hcd);
128
129	return 0;
130}
131
132static struct platform_driver ohci_hcd_sh_driver = {
133	.probe		= ohci_hcd_sh_probe,
134	.remove		= ohci_hcd_sh_remove,
135	.shutdown	= usb_hcd_platform_shutdown,
136	.driver		= {
137		.name	= "sh_ohci",
138		.owner	= THIS_MODULE,
139	},
140};
141
142MODULE_ALIAS("platform:sh_ohci");