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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, | |
68 | .get_frame_number = ehci_get_frame, | |
69 | .hub_status_data = ehci_hub_status_data, | |
70 | .hub_control = ehci_hub_control, | |
71 | #if defined(CONFIG_PM) | |
72 | .bus_suspend = ehci_bus_suspend, | |
73 | .bus_resume = ehci_bus_resume, | |
74 | #endif | |
75 | }; | |
76 | ||
7a4eb7fd | 77 | static int ps3_ehci_probe(struct ps3_system_bus_device *dev) |
ad75a410 GL |
78 | { |
79 | int result; | |
80 | struct usb_hcd *hcd; | |
81 | unsigned int virq; | |
82 | static u64 dummy_mask = DMA_32BIT_MASK; | |
83 | ||
84 | if (usb_disabled()) { | |
85 | result = -ENODEV; | |
86 | goto fail_start; | |
87 | } | |
88 | ||
7a4eb7fd GL |
89 | result = ps3_open_hv_device(dev); |
90 | ||
91 | if (result) { | |
92 | dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n", | |
93 | __func__, __LINE__); | |
94 | goto fail_open; | |
95 | } | |
96 | ||
97 | result = ps3_dma_region_create(dev->d_region); | |
98 | ||
99 | if (result) { | |
100 | dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: " | |
101 | "(%d)\n", __func__, __LINE__, result); | |
102 | BUG_ON("check region type"); | |
103 | goto fail_dma_region; | |
104 | } | |
105 | ||
ad75a410 GL |
106 | result = ps3_mmio_region_create(dev->m_region); |
107 | ||
108 | if (result) { | |
109 | dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n", | |
110 | __func__, __LINE__); | |
111 | result = -EPERM; | |
7a4eb7fd | 112 | goto fail_mmio_region; |
ad75a410 GL |
113 | } |
114 | ||
115 | dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__, | |
116 | __LINE__, dev->m_region->lpar_addr); | |
117 | ||
dc4f60c2 | 118 | result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq); |
ad75a410 GL |
119 | |
120 | if (result) { | |
121 | dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n", | |
122 | __func__, __LINE__, virq); | |
123 | result = -EPERM; | |
124 | goto fail_irq; | |
125 | } | |
126 | ||
127 | dev->core.power.power_state = PMSG_ON; | |
128 | dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ | |
129 | ||
130 | hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev->core.bus_id); | |
131 | ||
132 | if (!hcd) { | |
133 | dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__, | |
134 | __LINE__); | |
135 | result = -ENOMEM; | |
136 | goto fail_create_hcd; | |
137 | } | |
138 | ||
139 | hcd->rsrc_start = dev->m_region->lpar_addr; | |
140 | hcd->rsrc_len = dev->m_region->len; | |
7a4eb7fd GL |
141 | |
142 | if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) | |
143 | dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n", | |
144 | __func__, __LINE__); | |
145 | ||
ad75a410 GL |
146 | hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len); |
147 | ||
148 | if (!hcd->regs) { | |
149 | dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__, | |
150 | __LINE__); | |
151 | result = -EPERM; | |
152 | goto fail_ioremap; | |
153 | } | |
154 | ||
155 | dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__, | |
156 | (unsigned long)hcd->rsrc_start); | |
157 | dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__, | |
158 | (unsigned long)hcd->rsrc_len); | |
159 | dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__, | |
160 | (unsigned long)hcd->regs); | |
161 | dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__, | |
162 | (unsigned long)virq); | |
163 | ||
164 | ps3_system_bus_set_driver_data(dev, hcd); | |
165 | ||
166 | result = usb_add_hcd(hcd, virq, IRQF_DISABLED); | |
167 | ||
168 | if (result) { | |
169 | dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n", | |
170 | __func__, __LINE__, result); | |
171 | goto fail_add_hcd; | |
172 | } | |
173 | ||
174 | return result; | |
175 | ||
176 | fail_add_hcd: | |
177 | iounmap(hcd->regs); | |
178 | fail_ioremap: | |
7a4eb7fd | 179 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); |
ad75a410 GL |
180 | usb_put_hcd(hcd); |
181 | fail_create_hcd: | |
dc4f60c2 | 182 | ps3_io_irq_destroy(virq); |
ad75a410 GL |
183 | fail_irq: |
184 | ps3_free_mmio_region(dev->m_region); | |
7a4eb7fd GL |
185 | fail_mmio_region: |
186 | ps3_dma_region_free(dev->d_region); | |
187 | fail_dma_region: | |
188 | ps3_close_hv_device(dev); | |
189 | fail_open: | |
ad75a410 GL |
190 | fail_start: |
191 | return result; | |
192 | } | |
193 | ||
7a4eb7fd | 194 | static int ps3_ehci_remove(struct ps3_system_bus_device *dev) |
ad75a410 | 195 | { |
7a4eb7fd | 196 | unsigned int tmp; |
ad75a410 GL |
197 | struct usb_hcd *hcd = |
198 | (struct usb_hcd *)ps3_system_bus_get_driver_data(dev); | |
199 | ||
7a4eb7fd GL |
200 | BUG_ON(!hcd); |
201 | ||
202 | dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs); | |
203 | dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq); | |
204 | ||
205 | tmp = hcd->irq; | |
206 | ||
207 | usb_remove_hcd(hcd); | |
208 | ||
ad75a410 GL |
209 | ps3_system_bus_set_driver_data(dev, NULL); |
210 | ||
7a4eb7fd GL |
211 | BUG_ON(!hcd->regs); |
212 | iounmap(hcd->regs); | |
213 | ||
214 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); | |
215 | usb_put_hcd(hcd); | |
216 | ||
217 | ps3_io_irq_destroy(tmp); | |
218 | ps3_free_mmio_region(dev->m_region); | |
219 | ||
220 | ps3_dma_region_free(dev->d_region); | |
221 | ps3_close_hv_device(dev); | |
222 | ||
ad75a410 GL |
223 | return 0; |
224 | } | |
225 | ||
7a4eb7fd GL |
226 | static int ps3_ehci_driver_register(struct ps3_system_bus_driver *drv) |
227 | { | |
228 | return firmware_has_feature(FW_FEATURE_PS3_LV1) | |
229 | ? ps3_system_bus_driver_register(drv) | |
230 | : 0; | |
231 | } | |
232 | ||
233 | static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv) | |
234 | { | |
235 | if (firmware_has_feature(FW_FEATURE_PS3_LV1)) | |
236 | ps3_system_bus_driver_unregister(drv); | |
237 | } | |
238 | ||
239 | MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI); | |
ad75a410 | 240 | |
7a4eb7fd GL |
241 | static struct ps3_system_bus_driver ps3_ehci_driver = { |
242 | .core.name = "ps3-ehci-driver", | |
243 | .core.owner = THIS_MODULE, | |
ad75a410 | 244 | .match_id = PS3_MATCH_ID_EHCI, |
7a4eb7fd GL |
245 | .probe = ps3_ehci_probe, |
246 | .remove = ps3_ehci_remove, | |
247 | .shutdown = ps3_ehci_remove, | |
ad75a410 | 248 | }; |