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ad75a410 GL |
1 | /* |
2 | * PS3 EHCI 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 | ||
7a4eb7fd | 21 | #include <asm/firmware.h> |
ad75a410 GL |
22 | #include <asm/ps3.h> |
23 | ||
24 | static int ps3_ehci_hc_reset(struct usb_hcd *hcd) | |
25 | { | |
26 | int result; | |
27 | struct ehci_hcd *ehci = hcd_to_ehci(hcd); | |
28 | ||
29 | ehci->big_endian_mmio = 1; | |
30 | ||
31 | ehci->caps = hcd->regs; | |
32 | ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci, | |
33 | &ehci->caps->hc_capbase)); | |
34 | ||
35 | dbg_hcs_params(ehci, "reset"); | |
36 | dbg_hcc_params(ehci, "reset"); | |
37 | ||
38 | ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); | |
39 | ||
40 | result = ehci_halt(ehci); | |
41 | ||
42 | if (result) | |
43 | return result; | |
44 | ||
45 | result = ehci_init(hcd); | |
46 | ||
47 | if (result) | |
48 | return result; | |
49 | ||
af1c51fc | 50 | ehci_reset(ehci); |
ad75a410 GL |
51 | |
52 | return result; | |
53 | } | |
54 | ||
55 | static const struct hc_driver ps3_ehci_hc_driver = { | |
56 | .description = hcd_name, | |
57 | .product_desc = "PS3 EHCI Host Controller", | |
58 | .hcd_priv_size = sizeof(struct ehci_hcd), | |
59 | .irq = ehci_irq, | |
60 | .flags = HCD_MEMORY | HCD_USB2, | |
61 | .reset = ps3_ehci_hc_reset, | |
62 | .start = ehci_run, | |
63 | .stop = ehci_stop, | |
64 | .shutdown = ehci_shutdown, | |
65 | .urb_enqueue = ehci_urb_enqueue, | |
66 | .urb_dequeue = ehci_urb_dequeue, | |
67 | .endpoint_disable = ehci_endpoint_disable, | |
b18ffd49 | 68 | .endpoint_reset = ehci_endpoint_reset, |
ad75a410 GL |
69 | .get_frame_number = ehci_get_frame, |
70 | .hub_status_data = ehci_hub_status_data, | |
71 | .hub_control = ehci_hub_control, | |
72 | #if defined(CONFIG_PM) | |
73 | .bus_suspend = ehci_bus_suspend, | |
74 | .bus_resume = ehci_bus_resume, | |
75 | #endif | |
90da096e | 76 | .relinquish_port = ehci_relinquish_port, |
3a31155c | 77 | .port_handed_over = ehci_port_handed_over, |
914b7012 AS |
78 | |
79 | .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, | |
ad75a410 GL |
80 | }; |
81 | ||
31348517 | 82 | static int __devinit ps3_ehci_probe(struct ps3_system_bus_device *dev) |
ad75a410 GL |
83 | { |
84 | int result; | |
85 | struct usb_hcd *hcd; | |
86 | unsigned int virq; | |
284901a9 | 87 | static u64 dummy_mask = DMA_BIT_MASK(32); |
ad75a410 GL |
88 | |
89 | if (usb_disabled()) { | |
90 | result = -ENODEV; | |
91 | goto fail_start; | |
92 | } | |
93 | ||
7a4eb7fd GL |
94 | result = ps3_open_hv_device(dev); |
95 | ||
96 | if (result) { | |
97 | dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n", | |
98 | __func__, __LINE__); | |
99 | goto fail_open; | |
100 | } | |
101 | ||
102 | result = ps3_dma_region_create(dev->d_region); | |
103 | ||
104 | if (result) { | |
105 | dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: " | |
106 | "(%d)\n", __func__, __LINE__, result); | |
107 | BUG_ON("check region type"); | |
108 | goto fail_dma_region; | |
109 | } | |
110 | ||
ad75a410 GL |
111 | result = ps3_mmio_region_create(dev->m_region); |
112 | ||
113 | if (result) { | |
114 | dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n", | |
115 | __func__, __LINE__); | |
116 | result = -EPERM; | |
7a4eb7fd | 117 | goto fail_mmio_region; |
ad75a410 GL |
118 | } |
119 | ||
120 | dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__, | |
121 | __LINE__, dev->m_region->lpar_addr); | |
122 | ||
dc4f60c2 | 123 | result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq); |
ad75a410 GL |
124 | |
125 | if (result) { | |
126 | dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n", | |
127 | __func__, __LINE__, virq); | |
128 | result = -EPERM; | |
129 | goto fail_irq; | |
130 | } | |
131 | ||
ad75a410 GL |
132 | dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ |
133 | ||
7071a3ce | 134 | hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core)); |
ad75a410 GL |
135 | |
136 | if (!hcd) { | |
137 | dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__, | |
138 | __LINE__); | |
139 | result = -ENOMEM; | |
140 | goto fail_create_hcd; | |
141 | } | |
142 | ||
143 | hcd->rsrc_start = dev->m_region->lpar_addr; | |
144 | hcd->rsrc_len = dev->m_region->len; | |
7a4eb7fd GL |
145 | |
146 | if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) | |
147 | dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n", | |
148 | __func__, __LINE__); | |
149 | ||
ad75a410 GL |
150 | hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len); |
151 | ||
152 | if (!hcd->regs) { | |
153 | dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__, | |
154 | __LINE__); | |
155 | result = -EPERM; | |
156 | goto fail_ioremap; | |
157 | } | |
158 | ||
159 | dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__, | |
160 | (unsigned long)hcd->rsrc_start); | |
161 | dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__, | |
162 | (unsigned long)hcd->rsrc_len); | |
163 | dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__, | |
164 | (unsigned long)hcd->regs); | |
165 | dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__, | |
166 | (unsigned long)virq); | |
167 | ||
03fa68c2 | 168 | ps3_system_bus_set_drvdata(dev, hcd); |
ad75a410 GL |
169 | |
170 | result = usb_add_hcd(hcd, virq, IRQF_DISABLED); | |
171 | ||
172 | if (result) { | |
173 | dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n", | |
174 | __func__, __LINE__, result); | |
175 | goto fail_add_hcd; | |
176 | } | |
177 | ||
178 | return result; | |
179 | ||
180 | fail_add_hcd: | |
181 | iounmap(hcd->regs); | |
182 | fail_ioremap: | |
7a4eb7fd | 183 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); |
ad75a410 GL |
184 | usb_put_hcd(hcd); |
185 | fail_create_hcd: | |
dc4f60c2 | 186 | ps3_io_irq_destroy(virq); |
ad75a410 GL |
187 | fail_irq: |
188 | ps3_free_mmio_region(dev->m_region); | |
7a4eb7fd GL |
189 | fail_mmio_region: |
190 | ps3_dma_region_free(dev->d_region); | |
191 | fail_dma_region: | |
192 | ps3_close_hv_device(dev); | |
193 | fail_open: | |
ad75a410 GL |
194 | fail_start: |
195 | return result; | |
196 | } | |
197 | ||
7a4eb7fd | 198 | static int ps3_ehci_remove(struct ps3_system_bus_device *dev) |
ad75a410 | 199 | { |
7a4eb7fd | 200 | unsigned int tmp; |
03fa68c2 | 201 | struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev); |
ad75a410 | 202 | |
7a4eb7fd GL |
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 | ||
ddcb01ff | 210 | ehci_shutdown(hcd); |
7a4eb7fd GL |
211 | usb_remove_hcd(hcd); |
212 | ||
03fa68c2 | 213 | ps3_system_bus_set_drvdata(dev, NULL); |
ad75a410 | 214 | |
7a4eb7fd GL |
215 | BUG_ON(!hcd->regs); |
216 | iounmap(hcd->regs); | |
217 | ||
218 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); | |
219 | usb_put_hcd(hcd); | |
220 | ||
221 | ps3_io_irq_destroy(tmp); | |
222 | ps3_free_mmio_region(dev->m_region); | |
223 | ||
224 | ps3_dma_region_free(dev->d_region); | |
225 | ps3_close_hv_device(dev); | |
226 | ||
ad75a410 GL |
227 | return 0; |
228 | } | |
229 | ||
31348517 | 230 | static int __init ps3_ehci_driver_register(struct ps3_system_bus_driver *drv) |
7a4eb7fd GL |
231 | { |
232 | return firmware_has_feature(FW_FEATURE_PS3_LV1) | |
233 | ? ps3_system_bus_driver_register(drv) | |
234 | : 0; | |
235 | } | |
236 | ||
237 | static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv) | |
238 | { | |
239 | if (firmware_has_feature(FW_FEATURE_PS3_LV1)) | |
240 | ps3_system_bus_driver_unregister(drv); | |
241 | } | |
242 | ||
243 | MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI); | |
ad75a410 | 244 | |
7a4eb7fd GL |
245 | static struct ps3_system_bus_driver ps3_ehci_driver = { |
246 | .core.name = "ps3-ehci-driver", | |
247 | .core.owner = THIS_MODULE, | |
ad75a410 | 248 | .match_id = PS3_MATCH_ID_EHCI, |
7a4eb7fd GL |
249 | .probe = ps3_ehci_probe, |
250 | .remove = ps3_ehci_remove, | |
251 | .shutdown = ps3_ehci_remove, | |
ad75a410 | 252 | }; |