blob: 829fe649a981fdc03ad6f5cb64df4f9f0b8e4024 [file] [log] [blame]
Geoff Levandad75a412007-01-15 20:11:47 -08001/*
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
Geoff Levand7a4eb7f2007-06-05 20:04:35 -070021#include <asm/firmware.h>
Geoff Levandad75a412007-01-15 20:11:47 -080022#include <asm/ps3.h>
23
24static 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
50 ehci_port_power(ehci, 0);
51
52 return result;
53}
54
55static 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
Geoff Levand7a4eb7f2007-06-05 20:04:35 -070077static int ps3_ehci_probe(struct ps3_system_bus_device *dev)
Geoff Levandad75a412007-01-15 20:11:47 -080078{
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
Geoff Levand7a4eb7f2007-06-05 20:04:35 -070089 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
Geoff Levandad75a412007-01-15 20:11:47 -0800106 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;
Geoff Levand7a4eb7f2007-06-05 20:04:35 -0700112 goto fail_mmio_region;
Geoff Levandad75a412007-01-15 20:11:47 -0800113 }
114
115 dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
116 __LINE__, dev->m_region->lpar_addr);
117
Geoff Levanddc4f60c2007-05-01 07:01:01 +1000118 result = ps3_io_irq_setup(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq);
Geoff Levandad75a412007-01-15 20:11:47 -0800119
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;
Geoff Levand7a4eb7f2007-06-05 20:04:35 -0700141
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
Geoff Levandad75a412007-01-15 20:11:47 -0800146 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
176fail_add_hcd:
177 iounmap(hcd->regs);
178fail_ioremap:
Geoff Levand7a4eb7f2007-06-05 20:04:35 -0700179 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
Geoff Levandad75a412007-01-15 20:11:47 -0800180 usb_put_hcd(hcd);
181fail_create_hcd:
Geoff Levanddc4f60c2007-05-01 07:01:01 +1000182 ps3_io_irq_destroy(virq);
Geoff Levandad75a412007-01-15 20:11:47 -0800183fail_irq:
184 ps3_free_mmio_region(dev->m_region);
Geoff Levand7a4eb7f2007-06-05 20:04:35 -0700185fail_mmio_region:
186 ps3_dma_region_free(dev->d_region);
187fail_dma_region:
188 ps3_close_hv_device(dev);
189fail_open:
Geoff Levandad75a412007-01-15 20:11:47 -0800190fail_start:
191 return result;
192}
193
Geoff Levand7a4eb7f2007-06-05 20:04:35 -0700194static int ps3_ehci_remove(struct ps3_system_bus_device *dev)
Geoff Levandad75a412007-01-15 20:11:47 -0800195{
Geoff Levand7a4eb7f2007-06-05 20:04:35 -0700196 unsigned int tmp;
Geoff Levandad75a412007-01-15 20:11:47 -0800197 struct usb_hcd *hcd =
198 (struct usb_hcd *)ps3_system_bus_get_driver_data(dev);
199
Geoff Levand7a4eb7f2007-06-05 20:04:35 -0700200 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
Geoff Levandad75a412007-01-15 20:11:47 -0800209 ps3_system_bus_set_driver_data(dev, NULL);
210
Geoff Levand7a4eb7f2007-06-05 20:04:35 -0700211 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
Geoff Levandad75a412007-01-15 20:11:47 -0800223 return 0;
224}
225
Geoff Levand7a4eb7f2007-06-05 20:04:35 -0700226static 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}
Geoff Levandad75a412007-01-15 20:11:47 -0800232
Geoff Levand7a4eb7f2007-06-05 20:04:35 -0700233static 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
239MODULE_ALIAS(PS3_MODULE_ALIAS_EHCI);
240
241static struct ps3_system_bus_driver ps3_ehci_driver = {
242 .core.name = "ps3-ehci-driver",
243 .core.owner = THIS_MODULE,
Geoff Levandad75a412007-01-15 20:11:47 -0800244 .match_id = PS3_MATCH_ID_EHCI,
Geoff Levand7a4eb7f2007-06-05 20:04:35 -0700245 .probe = ps3_ehci_probe,
246 .remove = ps3_ehci_remove,
247 .shutdown = ps3_ehci_remove,
Geoff Levandad75a412007-01-15 20:11:47 -0800248};