1 /*
2 * PS3 OHCI Host Controller driver
3 *
4 * Copyright (C) 2006 Sony Computer Entertainment Inc.
5 * Copyright 2006 Sony Corp.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21 #include <asm/firmware.h>
22 #include <asm/ps3.h>
23
24 static int ps3_ohci_hc_reset(struct usb_hcd *hcd)
25 {
26 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
27
28 ohci->flags |= OHCI_QUIRK_BE_MMIO;
29 ohci_hcd_init(ohci);
30 return ohci_init(ohci);
31 }
32
33 static int __devinit ps3_ohci_hc_start(struct usb_hcd *hcd)
34 {
35 int result;
36 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
37
38 /* Handle root hub init quirk in spider south bridge. */
39 /* Also set PwrOn2PwrGood to 0x7f (254ms). */
40
41 ohci_writel(ohci, 0x7f000000 | RH_A_PSM | RH_A_OCPM,
42 &ohci->regs->roothub.a);
43 ohci_writel(ohci, 0x00060000, &ohci->regs->roothub.b);
44
45 result = ohci_run(ohci);
46
47 if (result < 0) {
48 err("can't start %s", hcd->self.bus_name);
49 ohci_stop(hcd);
50 }
51
52 return result;
53 }
54
55 static const struct hc_driver ps3_ohci_hc_driver = {
56 .description = hcd_name,
57 .product_desc = "PS3 OHCI Host Controller",
58 .hcd_priv_size = sizeof(struct ohci_hcd),
59 .irq = ohci_irq,
60 .flags = HCD_MEMORY | HCD_USB11,
61 .reset = ps3_ohci_hc_reset,
62 .start = ps3_ohci_hc_start,
63 .stop = ohci_stop,
64 .shutdown = ohci_shutdown,
65 .urb_enqueue = ohci_urb_enqueue,
66 .urb_dequeue = ohci_urb_dequeue,
67 .endpoint_disable = ohci_endpoint_disable,
68 .get_frame_number = ohci_get_frame,
69 .hub_status_data = ohci_hub_status_data,
70 .hub_control = ohci_hub_control,
71 .hub_irq_enable = ohci_rhsc_enable,
72 .start_port_reset = ohci_start_port_reset,
73 #if defined(CONFIG_PM)
74 .bus_suspend = ohci_bus_suspend,
75 .bus_resume = ohci_bus_resume,
76 #endif
77 };
78
79 static int ps3_ohci_probe(struct ps3_system_bus_device *dev)
80 {
81 int result;
82 struct usb_hcd *hcd;
83 unsigned int virq;
84 static u64 dummy_mask = DMA_32BIT_MASK;
85
86 if (usb_disabled()) {
87 result = -ENODEV;
88 goto fail_start;
89 }
90
91 result = ps3_open_hv_device(dev);
92
93 if (result) {
94 dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed: %s\n",
95 __func__, __LINE__, ps3_result(result));
96 result = -EPERM;
97 goto fail_open;
98 }
99
100 result = ps3_dma_region_create(dev->d_region);
101
102 if (result) {
103 dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: "
104 "(%d)\n", __func__, __LINE__, result);
105 BUG_ON("check region type");
106 goto fail_dma_region;
107 }
108
109 result = ps3_mmio_region_create(dev->m_region);
110
111 if (result) {
112 dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
113 __func__, __LINE__);
114 result = -EPERM;
115 goto fail_mmio_region;
116 }
117
118 dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
119 __LINE__, dev->m_region->lpar_addr);
120
121 result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
122
123 if (result) {
124 dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
125 __func__, __LINE__, virq);
126 result = -EPERM;
127 goto fail_irq;
128 }
129
130 dev->core.power.power_state = PMSG_ON;
131 dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
132
133 hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev->core.bus_id);
134
135 if (!hcd) {
136 dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
137 __LINE__);
138 result = -ENOMEM;
139 goto fail_create_hcd;
140 }
141
142 hcd->rsrc_start = dev->m_region->lpar_addr;
143 hcd->rsrc_len = dev->m_region->len;
144
145 if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name))
146 dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n",
147 __func__, __LINE__);
148
149 hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
150
151 if (!hcd->regs) {
152 dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
153 __LINE__);
154 result = -EPERM;
155 goto fail_ioremap;
156 }
157
158 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
159 (unsigned long)hcd->rsrc_start);
160 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__,
161 (unsigned long)hcd->rsrc_len);
162 dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__,
163 (unsigned long)hcd->regs);
164 dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__,
165 (unsigned long)virq);
166
167 ps3_system_bus_set_driver_data(dev, hcd);
168
169 result = usb_add_hcd(hcd, virq, IRQF_DISABLED);
170
171 if (result) {
172 dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
173 __func__, __LINE__, result);
174 goto fail_add_hcd;
175 }
176
177 return result;
178
179 fail_add_hcd:
180 iounmap(hcd->regs);
181 fail_ioremap:
182 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
183 usb_put_hcd(hcd);
184 fail_create_hcd:
185 ps3_io_irq_destroy(virq);
186 fail_irq:
187 ps3_free_mmio_region(dev->m_region);
188 fail_mmio_region:
189 ps3_dma_region_free(dev->d_region);
190 fail_dma_region:
191 ps3_close_hv_device(dev);
192 fail_open:
193 fail_start:
194 return result;
195 }
196
197 static int ps3_ohci_remove (struct ps3_system_bus_device *dev)
198 {
199 unsigned int tmp;
200 struct usb_hcd *hcd =
201 (struct usb_hcd *)ps3_system_bus_get_driver_data(dev);
202
203 BUG_ON(!hcd);
204
205 dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs);
206 dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq);
207
208 tmp = hcd->irq;
209
210 usb_remove_hcd(hcd);
211
212 ps3_system_bus_set_driver_data(dev, NULL);
213
214 BUG_ON(!hcd->regs);
215 iounmap(hcd->regs);
216
217 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
218 usb_put_hcd(hcd);
219
220 ps3_io_irq_destroy(tmp);
221 ps3_free_mmio_region(dev->m_region);
222
223 ps3_dma_region_free(dev->d_region);
224 ps3_close_hv_device(dev);
225
226 return 0;
227 }
228
229 static int ps3_ohci_driver_register(struct ps3_system_bus_driver *drv)
230 {
231 return firmware_has_feature(FW_FEATURE_PS3_LV1)
232 ? ps3_system_bus_driver_register(drv)
233 : 0;
234 }
235
236 static void ps3_ohci_driver_unregister(struct ps3_system_bus_driver *drv)
237 {
238 if (firmware_has_feature(FW_FEATURE_PS3_LV1))
239 ps3_system_bus_driver_unregister(drv);
240 }
241
242 MODULE_ALIAS(PS3_MODULE_ALIAS_OHCI);
243
244 static struct ps3_system_bus_driver ps3_ohci_driver = {
245 .core.name = "ps3-ohci-driver",
246 .core.owner = THIS_MODULE,
247 .match_id = PS3_MATCH_ID_OHCI,
248 .probe = ps3_ohci_probe,
249 .remove = ps3_ohci_remove,
250 .shutdown = ps3_ohci_remove,
251 };
252
|
This page was automatically generated by the
LXR engine.
|