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authorGeoff Levand <geoffrey.levand@am.sony.com>2007-01-15 23:12:10 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2007-02-07 18:44:37 -0500
commit6a6c957eba20814456bc4bffbd4ec42406f9eb02 (patch)
tree21e215b745658c6ff49b833da59c84327c9793d2 /drivers/usb/host/ohci-ps3.c
parentde44743b033942731f6b898c2d389f7ee5ac890b (diff)
USB: ps3 ohci bus glue
USB OHCI driver bus glue for the PS3 game console. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/host/ohci-ps3.c')
-rw-r--r--drivers/usb/host/ohci-ps3.c196
1 files changed, 196 insertions, 0 deletions
diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c
new file mode 100644
index 000000000000..69d948b4a701
--- /dev/null
+++ b/drivers/usb/host/ohci-ps3.c
@@ -0,0 +1,196 @@
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/ps3.h>
22
23static int ps3_ohci_hc_reset(struct usb_hcd *hcd)
24{
25 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
26
27 ohci->flags |= OHCI_QUIRK_BE_MMIO;
28 ohci_hcd_init(ohci);
29 return ohci_init(ohci);
30}
31
32static int __devinit ps3_ohci_hc_start(struct usb_hcd *hcd)
33{
34 int result;
35 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
36
37 /* Handle root hub init quirk in spider south bridge. */
38 /* Also set PwrOn2PwrGood to 0x7f (254ms). */
39
40 ohci_writel(ohci, 0x7f000000 | RH_A_PSM | RH_A_OCPM,
41 &ohci->regs->roothub.a);
42 ohci_writel(ohci, 0x00060000, &ohci->regs->roothub.b);
43
44 result = ohci_run(ohci);
45
46 if (result < 0) {
47 err("can't start %s", hcd->self.bus_name);
48 ohci_stop(hcd);
49 }
50
51 return result;
52}
53
54static const struct hc_driver ps3_ohci_hc_driver = {
55 .description = hcd_name,
56 .product_desc = "PS3 OHCI Host Controller",
57 .hcd_priv_size = sizeof(struct ohci_hcd),
58 .irq = ohci_irq,
59 .flags = HCD_MEMORY | HCD_USB11,
60 .reset = ps3_ohci_hc_reset,
61 .start = ps3_ohci_hc_start,
62 .stop = ohci_stop,
63 .shutdown = ohci_shutdown,
64 .urb_enqueue = ohci_urb_enqueue,
65 .urb_dequeue = ohci_urb_dequeue,
66 .endpoint_disable = ohci_endpoint_disable,
67 .get_frame_number = ohci_get_frame,
68 .hub_status_data = ohci_hub_status_data,
69 .hub_control = ohci_hub_control,
70 .hub_irq_enable = ohci_rhsc_enable,
71 .start_port_reset = ohci_start_port_reset,
72#if defined(CONFIG_PM)
73 .bus_suspend = ohci_bus_suspend,
74 .bus_resume = ohci_bus_resume,
75#endif
76};
77
78/* redefine dev_dbg to do a syntax check */
79
80#if !defined(DEBUG)
81#undef dev_dbg
82static inline int __attribute__ ((format (printf, 2, 3))) dev_dbg(
83 const struct device *_dev, const char *fmt, ...) {return 0;}
84#endif
85
86static int ps3_ohci_sb_probe(struct ps3_system_bus_device *dev)
87{
88 int result;
89 struct usb_hcd *hcd;
90 unsigned int virq;
91 static u64 dummy_mask = DMA_32BIT_MASK;
92
93 if (usb_disabled()) {
94 result = -ENODEV;
95 goto fail_start;
96 }
97
98 result = ps3_mmio_region_create(dev->m_region);
99
100 if (result) {
101 dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n",
102 __func__, __LINE__);
103 result = -EPERM;
104 goto fail_mmio;
105 }
106
107 dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__,
108 __LINE__, dev->m_region->lpar_addr);
109
110 result = ps3_alloc_io_irq(dev->interrupt_id, &virq);
111
112 if (result) {
113 dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n",
114 __func__, __LINE__, virq);
115 result = -EPERM;
116 goto fail_irq;
117 }
118
119 dev->core.power.power_state = PMSG_ON;
120 dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */
121
122 hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev->core.bus_id);
123
124 if (!hcd) {
125 dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__,
126 __LINE__);
127 result = -ENOMEM;
128 goto fail_create_hcd;
129 }
130
131 hcd->rsrc_start = dev->m_region->lpar_addr;
132 hcd->rsrc_len = dev->m_region->len;
133 hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len);
134
135 if (!hcd->regs) {
136 dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__,
137 __LINE__);
138 result = -EPERM;
139 goto fail_ioremap;
140 }
141
142 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__,
143 (unsigned long)hcd->rsrc_start);
144 dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__,
145 (unsigned long)hcd->rsrc_len);
146 dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__,
147 (unsigned long)hcd->regs);
148 dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__,
149 (unsigned long)virq);
150
151 ps3_system_bus_set_driver_data(dev, hcd);
152
153 result = usb_add_hcd(hcd, virq, IRQF_DISABLED);
154
155 if (result) {
156 dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n",
157 __func__, __LINE__, result);
158 goto fail_add_hcd;
159 }
160
161 return result;
162
163fail_add_hcd:
164 iounmap(hcd->regs);
165fail_ioremap:
166 usb_put_hcd(hcd);
167fail_create_hcd:
168 ps3_free_io_irq(virq);
169fail_irq:
170 ps3_free_mmio_region(dev->m_region);
171fail_mmio:
172fail_start:
173 return result;
174}
175
176static int ps3_ohci_sb_remove (struct ps3_system_bus_device *dev)
177{
178 struct usb_hcd *hcd =
179 (struct usb_hcd *)ps3_system_bus_get_driver_data(dev);
180
181 usb_put_hcd(hcd);
182 ps3_system_bus_set_driver_data(dev, NULL);
183
184 return 0;
185}
186
187MODULE_ALIAS("ps3-ohci");
188
189static struct ps3_system_bus_driver ps3_ohci_sb_driver = {
190 .match_id = PS3_MATCH_ID_OHCI,
191 .core = {
192 .name = "ps3-ohci-driver",
193 },
194 .probe = ps3_ohci_sb_probe,
195 .remove = ps3_ohci_sb_remove,
196};