Commit | Line | Data |
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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 | ||
9187bef2 GL |
24 | static void ps3_ehci_setup_insnreg(struct ehci_hcd *ehci) |
25 | { | |
26 | /* PS3 HC internal setup register offsets. */ | |
27 | ||
28 | enum ps3_ehci_hc_insnreg { | |
29 | ps3_ehci_hc_insnreg01 = 0x084, | |
30 | ps3_ehci_hc_insnreg02 = 0x088, | |
31 | ps3_ehci_hc_insnreg03 = 0x08c, | |
32 | }; | |
33 | ||
34 | /* PS3 EHCI HC errata fix 316 - The PS3 EHCI HC will reset its | |
35 | * internal INSNREGXX setup regs back to the chip default values | |
36 | * on Host Controller Reset (CMD_RESET) or Light Host Controller | |
37 | * Reset (CMD_LRESET). The work-around for this is for the HC | |
38 | * driver to re-initialise these regs when ever the HC is reset. | |
39 | */ | |
40 | ||
41 | /* Set burst transfer counts to 256 out, 32 in. */ | |
42 | ||
43 | writel_be(0x01000020, (void __iomem *)ehci->regs + | |
44 | ps3_ehci_hc_insnreg01); | |
45 | ||
46 | /* Enable burst transfer counts. */ | |
47 | ||
48 | writel_be(0x00000001, (void __iomem *)ehci->regs + | |
49 | ps3_ehci_hc_insnreg03); | |
50 | } | |
51 | ||
ad75a410 GL |
52 | static int ps3_ehci_hc_reset(struct usb_hcd *hcd) |
53 | { | |
54 | int result; | |
55 | struct ehci_hcd *ehci = hcd_to_ehci(hcd); | |
56 | ||
57 | ehci->big_endian_mmio = 1; | |
ad75a410 | 58 | ehci->caps = hcd->regs; |
ad75a410 | 59 | |
1a49e2ac | 60 | result = ehci_setup(hcd); |
ad75a410 GL |
61 | if (result) |
62 | return result; | |
63 | ||
9187bef2 GL |
64 | ps3_ehci_setup_insnreg(ehci); |
65 | ||
ad75a410 GL |
66 | return result; |
67 | } | |
68 | ||
69 | static const struct hc_driver ps3_ehci_hc_driver = { | |
70 | .description = hcd_name, | |
71 | .product_desc = "PS3 EHCI Host Controller", | |
72 | .hcd_priv_size = sizeof(struct ehci_hcd), | |
73 | .irq = ehci_irq, | |
74 | .flags = HCD_MEMORY | HCD_USB2, | |
75 | .reset = ps3_ehci_hc_reset, | |
76 | .start = ehci_run, | |
77 | .stop = ehci_stop, | |
78 | .shutdown = ehci_shutdown, | |
79 | .urb_enqueue = ehci_urb_enqueue, | |
80 | .urb_dequeue = ehci_urb_dequeue, | |
81 | .endpoint_disable = ehci_endpoint_disable, | |
b18ffd49 | 82 | .endpoint_reset = ehci_endpoint_reset, |
ad75a410 GL |
83 | .get_frame_number = ehci_get_frame, |
84 | .hub_status_data = ehci_hub_status_data, | |
85 | .hub_control = ehci_hub_control, | |
86 | #if defined(CONFIG_PM) | |
87 | .bus_suspend = ehci_bus_suspend, | |
88 | .bus_resume = ehci_bus_resume, | |
89 | #endif | |
90da096e | 90 | .relinquish_port = ehci_relinquish_port, |
3a31155c | 91 | .port_handed_over = ehci_port_handed_over, |
914b7012 AS |
92 | |
93 | .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, | |
ad75a410 GL |
94 | }; |
95 | ||
41ac7b3a | 96 | static int ps3_ehci_probe(struct ps3_system_bus_device *dev) |
ad75a410 GL |
97 | { |
98 | int result; | |
99 | struct usb_hcd *hcd; | |
100 | unsigned int virq; | |
284901a9 | 101 | static u64 dummy_mask = DMA_BIT_MASK(32); |
ad75a410 GL |
102 | |
103 | if (usb_disabled()) { | |
104 | result = -ENODEV; | |
105 | goto fail_start; | |
106 | } | |
107 | ||
7a4eb7fd GL |
108 | result = ps3_open_hv_device(dev); |
109 | ||
110 | if (result) { | |
111 | dev_dbg(&dev->core, "%s:%d: ps3_open_hv_device failed\n", | |
112 | __func__, __LINE__); | |
113 | goto fail_open; | |
114 | } | |
115 | ||
116 | result = ps3_dma_region_create(dev->d_region); | |
117 | ||
118 | if (result) { | |
119 | dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: " | |
120 | "(%d)\n", __func__, __LINE__, result); | |
121 | BUG_ON("check region type"); | |
122 | goto fail_dma_region; | |
123 | } | |
124 | ||
ad75a410 GL |
125 | result = ps3_mmio_region_create(dev->m_region); |
126 | ||
127 | if (result) { | |
128 | dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n", | |
129 | __func__, __LINE__); | |
130 | result = -EPERM; | |
7a4eb7fd | 131 | goto fail_mmio_region; |
ad75a410 GL |
132 | } |
133 | ||
134 | dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__, | |
135 | __LINE__, dev->m_region->lpar_addr); | |
136 | ||
dc4f60c2 | 137 | result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq); |
ad75a410 GL |
138 | |
139 | if (result) { | |
140 | dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n", | |
141 | __func__, __LINE__, virq); | |
142 | result = -EPERM; | |
143 | goto fail_irq; | |
144 | } | |
145 | ||
ad75a410 GL |
146 | dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ |
147 | ||
7071a3ce | 148 | hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core)); |
ad75a410 GL |
149 | |
150 | if (!hcd) { | |
151 | dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__, | |
152 | __LINE__); | |
153 | result = -ENOMEM; | |
154 | goto fail_create_hcd; | |
155 | } | |
156 | ||
157 | hcd->rsrc_start = dev->m_region->lpar_addr; | |
158 | hcd->rsrc_len = dev->m_region->len; | |
7a4eb7fd GL |
159 | |
160 | if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) | |
161 | dev_dbg(&dev->core, "%s:%d: request_mem_region failed\n", | |
162 | __func__, __LINE__); | |
163 | ||
ad75a410 GL |
164 | hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len); |
165 | ||
166 | if (!hcd->regs) { | |
167 | dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__, | |
168 | __LINE__); | |
169 | result = -EPERM; | |
170 | goto fail_ioremap; | |
171 | } | |
172 | ||
173 | dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__, | |
174 | (unsigned long)hcd->rsrc_start); | |
175 | dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__, | |
176 | (unsigned long)hcd->rsrc_len); | |
177 | dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__, | |
178 | (unsigned long)hcd->regs); | |
179 | dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__, | |
180 | (unsigned long)virq); | |
181 | ||
03fa68c2 | 182 | ps3_system_bus_set_drvdata(dev, hcd); |
ad75a410 | 183 | |
b5dd18d8 | 184 | result = usb_add_hcd(hcd, virq, 0); |
ad75a410 GL |
185 | |
186 | if (result) { | |
187 | dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n", | |
188 | __func__, __LINE__, result); | |
189 | goto fail_add_hcd; | |
190 | } | |
191 | ||
192 | return result; | |
193 | ||
194 | fail_add_hcd: | |
195 | iounmap(hcd->regs); | |
196 | fail_ioremap: | |
7a4eb7fd | 197 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); |
ad75a410 GL |
198 | usb_put_hcd(hcd); |
199 | fail_create_hcd: | |
dc4f60c2 | 200 | ps3_io_irq_destroy(virq); |
ad75a410 GL |
201 | fail_irq: |
202 | ps3_free_mmio_region(dev->m_region); | |
7a4eb7fd GL |
203 | fail_mmio_region: |
204 | ps3_dma_region_free(dev->d_region); | |
205 | fail_dma_region: | |
206 | ps3_close_hv_device(dev); | |
207 | fail_open: | |
ad75a410 GL |
208 | fail_start: |
209 | return result; | |
210 | } | |
211 | ||
7a4eb7fd | 212 | static int ps3_ehci_remove(struct ps3_system_bus_device *dev) |
ad75a410 | 213 | { |
7a4eb7fd | 214 | unsigned int tmp; |
03fa68c2 | 215 | struct usb_hcd *hcd = ps3_system_bus_get_drvdata(dev); |
ad75a410 | 216 | |
7a4eb7fd GL |
217 | BUG_ON(!hcd); |
218 | ||
219 | dev_dbg(&dev->core, "%s:%d: regs %p\n", __func__, __LINE__, hcd->regs); | |
220 | dev_dbg(&dev->core, "%s:%d: irq %u\n", __func__, __LINE__, hcd->irq); | |
221 | ||
222 | tmp = hcd->irq; | |
223 | ||
224 | usb_remove_hcd(hcd); | |
225 | ||
03fa68c2 | 226 | ps3_system_bus_set_drvdata(dev, NULL); |
ad75a410 | 227 | |
7a4eb7fd GL |
228 | BUG_ON(!hcd->regs); |
229 | iounmap(hcd->regs); | |
230 | ||
231 | release_mem_region(hcd->rsrc_start, hcd->rsrc_len); | |
232 | usb_put_hcd(hcd); | |
233 | ||
234 | ps3_io_irq_destroy(tmp); | |
235 | ps3_free_mmio_region(dev->m_region); | |
236 | ||
237 | ps3_dma_region_free(dev->d_region); | |
238 | ps3_close_hv_device(dev); | |
239 | ||
ad75a410 GL |
240 | return 0; |
241 | } | |
242 | ||
31348517 | 243 | static int __init ps3_ehci_driver_register(struct ps3_system_bus_driver *drv) |
7a4eb7fd GL |
244 | { |
245 | return firmware_has_feature(FW_FEATURE_PS3_LV1) | |
246 | ? ps3_system_bus_driver_register(drv) | |
247 | : 0; | |
248 | } | |
249 | ||
250 | static void ps3_ehci_driver_unregister(struct ps3_system_bus_driver *drv) | |
251 | { | |
252 | if (firmware_has_feature(FW_FEATURE_PS3_LV1)) | |
253 | ps3_system_bus_driver_unregister(drv); | |
254 | } | |
255 | ||
256 | MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI); | |
ad75a410 | 257 | |
7a4eb7fd GL |
258 | static struct ps3_system_bus_driver ps3_ehci_driver = { |
259 | .core.name = "ps3-ehci-driver", | |
260 | .core.owner = THIS_MODULE, | |
ad75a410 | 261 | .match_id = PS3_MATCH_ID_EHCI, |
7a4eb7fd GL |
262 | .probe = ps3_ehci_probe, |
263 | .remove = ps3_ehci_remove, | |
264 | .shutdown = ps3_ehci_remove, | |
ad75a410 | 265 | }; |