[PATCH] USB: Rename hcd->hub_suspend to hcd->bus_suspend
[linux-2.6.git] / drivers / usb / host / ohci-ppc-soc.c
1 /*
2  * OHCI HCD (Host Controller Driver) for USB.
3  *
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
7  * (C) Copyright 2003-2005 MontaVista Software Inc.
8  * 
9  * Bus Glue for PPC On-Chip OHCI driver
10  * Tested on Freescale MPC5200 and IBM STB04xxx
11  *
12  * Modified by Dale Farnsworth <dale@farnsworth.org> from ohci-sa1111.c
13  *
14  * This file is licenced under the GPL.
15  */
16
17 /* configure so an HC device and id are always provided */
18 /* always called with process context; sleeping is OK */
19
20 /**
21  * usb_hcd_ppc_soc_probe - initialize On-Chip HCDs
22  * Context: !in_interrupt()
23  *
24  * Allocates basic resources for this USB host controller.
25  *
26  * Store this function in the HCD's struct pci_driver as probe().
27  */
28 static int usb_hcd_ppc_soc_probe(const struct hc_driver *driver,
29                           struct platform_device *pdev)
30 {
31         int retval;
32         struct usb_hcd *hcd;
33         struct ohci_hcd *ohci;
34         struct resource *res;
35         int irq;
36
37         pr_debug("initializing PPC-SOC USB Controller\n");
38
39         res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
40         if (!res) {
41                 pr_debug(__FILE__ ": no irq\n");
42                 return -ENODEV;
43         }
44         irq = res->start;
45
46         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
47         if (!res) {
48                 pr_debug(__FILE__ ": no reg addr\n");
49                 return -ENODEV;
50         }
51
52         hcd = usb_create_hcd(driver, &pdev->dev, "PPC-SOC USB");
53         if (!hcd)
54                 return -ENOMEM;
55         hcd->rsrc_start = res->start;
56         hcd->rsrc_len = res->end - res->start + 1;
57
58         if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
59                 pr_debug(__FILE__ ": request_mem_region failed\n");
60                 retval = -EBUSY;
61                 goto err1;
62         }
63
64         hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
65         if (!hcd->regs) {
66                 pr_debug(__FILE__ ": ioremap failed\n");
67                 retval = -ENOMEM;
68                 goto err2;
69         }
70
71         ohci = hcd_to_ohci(hcd);
72         ohci->flags |= OHCI_BIG_ENDIAN;
73         ohci_hcd_init(ohci);
74
75         retval = usb_add_hcd(hcd, irq, SA_INTERRUPT);
76         if (retval == 0)
77                 return retval;
78
79         pr_debug("Removing PPC-SOC USB Controller\n");
80
81         iounmap(hcd->regs);
82  err2:
83         release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
84  err1:
85         usb_put_hcd(hcd);
86         return retval;
87 }
88
89
90 /* may be called without controller electrically present */
91 /* may be called with controller, bus, and devices active */
92
93 /**
94  * usb_hcd_ppc_soc_remove - shutdown processing for On-Chip HCDs
95  * @pdev: USB Host Controller being removed
96  * Context: !in_interrupt()
97  *
98  * Reverses the effect of usb_hcd_ppc_soc_probe().
99  * It is always called from a thread
100  * context, normally "rmmod", "apmd", or something similar.
101  *
102  */
103 static void usb_hcd_ppc_soc_remove(struct usb_hcd *hcd,
104                 struct platform_device *pdev)
105 {
106         usb_remove_hcd(hcd);
107
108         pr_debug("stopping PPC-SOC USB Controller\n");
109
110         iounmap(hcd->regs);
111         release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
112         usb_put_hcd(hcd);
113 }
114
115 static int __devinit
116 ohci_ppc_soc_start(struct usb_hcd *hcd)
117 {
118         struct ohci_hcd *ohci = hcd_to_ohci(hcd);
119         int             ret;
120
121         if ((ret = ohci_init(ohci)) < 0)
122                 return ret;
123
124         if ((ret = ohci_run(ohci)) < 0) {
125                 err("can't start %s", ohci_to_hcd(ohci)->self.bus_name);
126                 ohci_stop(hcd);
127                 return ret;
128         }
129
130         return 0;
131 }
132
133 static const struct hc_driver ohci_ppc_soc_hc_driver = {
134         .description =          hcd_name,
135         .hcd_priv_size =        sizeof(struct ohci_hcd),
136
137         /*
138          * generic hardware linkage
139          */
140         .irq =                  ohci_irq,
141         .flags =                HCD_USB11 | HCD_MEMORY,
142
143         /*
144          * basic lifecycle operations
145          */
146         .start =                ohci_ppc_soc_start,
147         .stop =                 ohci_stop,
148
149         /*
150          * managing i/o requests and associated device resources
151          */
152         .urb_enqueue =          ohci_urb_enqueue,
153         .urb_dequeue =          ohci_urb_dequeue,
154         .endpoint_disable =     ohci_endpoint_disable,
155
156         /*
157          * scheduling support
158          */
159         .get_frame_number =     ohci_get_frame,
160
161         /*
162          * root hub support
163          */
164         .hub_status_data =      ohci_hub_status_data,
165         .hub_control =          ohci_hub_control,
166 #ifdef  CONFIG_PM
167         .bus_suspend =          ohci_bus_suspend,
168         .bus_resume =           ohci_bus_resume,
169 #endif
170         .start_port_reset =     ohci_start_port_reset,
171 };
172
173 static int ohci_hcd_ppc_soc_drv_probe(struct device *dev)
174 {
175         struct platform_device *pdev = to_platform_device(dev);
176         int ret;
177
178         if (usb_disabled())
179                 return -ENODEV;
180
181         ret = usb_hcd_ppc_soc_probe(&ohci_ppc_soc_hc_driver, pdev);
182         return ret;
183 }
184
185 static int ohci_hcd_ppc_soc_drv_remove(struct device *dev)
186 {
187         struct platform_device *pdev = to_platform_device(dev);
188         struct usb_hcd *hcd = dev_get_drvdata(dev);
189
190         usb_hcd_ppc_soc_remove(hcd, pdev);
191         return 0;
192 }
193
194 static struct device_driver ohci_hcd_ppc_soc_driver = {
195         .name           = "ppc-soc-ohci",
196         .bus            = &platform_bus_type,
197         .probe          = ohci_hcd_ppc_soc_drv_probe,
198         .remove         = ohci_hcd_ppc_soc_drv_remove,
199 #ifdef  CONFIG_PM
200         /*.suspend      = ohci_hcd_ppc_soc_drv_suspend,*/
201         /*.resume       = ohci_hcd_ppc_soc_drv_resume,*/
202 #endif
203 };
204
205 static int __init ohci_hcd_ppc_soc_init(void)
206 {
207         pr_debug(DRIVER_INFO " (PPC SOC)\n");
208         pr_debug("block sizes: ed %d td %d\n", sizeof(struct ed),
209                                                         sizeof(struct td));
210
211         return driver_register(&ohci_hcd_ppc_soc_driver);
212 }
213
214 static void __exit ohci_hcd_ppc_soc_cleanup(void)
215 {
216         driver_unregister(&ohci_hcd_ppc_soc_driver);
217 }
218
219 module_init(ohci_hcd_ppc_soc_init);
220 module_exit(ohci_hcd_ppc_soc_cleanup);