]> err.no Git - linux-2.6/blob - drivers/usb/host/ohci-sh.c
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6] / drivers / usb / host / ohci-sh.c
1 /*
2  * OHCI HCD (Host Controller Driver) for USB.
3  *
4  * Copyright (C) 2008 Renesas Solutions Corp.
5  *
6  * Author : Yoshihiro Shimoda <shimoda.yoshihiro@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
25 static 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
36 static 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
80 #define resource_len(r) (((r)->end - (r)->start) + 1)
81 static int ohci_hcd_sh_probe(struct platform_device *pdev)
82 {
83         struct resource *res = NULL;
84         struct usb_hcd *hcd = NULL;
85         int irq = -1;
86         int ret;
87
88         if (usb_disabled())
89                 return -ENODEV;
90
91         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
92         if (!res) {
93                 err("platform_get_resource error.");
94                 return -ENODEV;
95         }
96
97         irq = platform_get_irq(pdev, 0);
98         if (irq < 0) {
99                 err("platform_get_irq error.");
100                 return -ENODEV;
101         }
102
103         /* initialize hcd */
104         hcd = usb_create_hcd(&ohci_sh_hc_driver, &pdev->dev, (char *)hcd_name);
105         if (!hcd) {
106                 err("Failed to create hcd");
107                 return -ENOMEM;
108         }
109
110         hcd->regs = (void __iomem *)res->start;
111         hcd->rsrc_start = res->start;
112         hcd->rsrc_len = resource_len(res);
113         ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
114         if (ret != 0) {
115                 err("Failed to add hcd");
116                 usb_put_hcd(hcd);
117                 return ret;
118         }
119
120         return ret;
121 }
122
123 static int ohci_hcd_sh_remove(struct platform_device *pdev)
124 {
125         struct usb_hcd *hcd = platform_get_drvdata(pdev);
126
127         usb_remove_hcd(hcd);
128         usb_put_hcd(hcd);
129
130         return 0;
131 }
132
133 static struct platform_driver ohci_hcd_sh_driver = {
134         .probe          = ohci_hcd_sh_probe,
135         .remove         = ohci_hcd_sh_remove,
136         .shutdown       = usb_hcd_platform_shutdown,
137         .driver         = {
138                 .name   = "sh_ohci",
139                 .owner  = THIS_MODULE,
140         },
141 };
142
143 MODULE_ALIAS("platform:sh_ohci");