summaryrefslogtreecommitdiffstats
path: root/hw/usb/hcd-ohci-pci.c
blob: 8e1146b8627f5f373128c277210dda6563d9b60b (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
/*
 * QEMU USB OHCI Emulation
 * Copyright (c) 2004 Gianni Tedesco
 * Copyright (c) 2006 CodeSourcery
 * Copyright (c) 2006 Openedhand Ltd.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 */

#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/timer.h"
#include "hw/usb.h"
#include "migration/vmstate.h"
#include "hw/pci/pci.h"
#include "hw/sysbus.h"
#include "hw/qdev-dma.h"
#include "hw/qdev-properties.h"
#include "trace.h"
#include "hcd-ohci.h"
#include "qom/object.h"

#define TYPE_PCI_OHCI "pci-ohci"
OBJECT_DECLARE_SIMPLE_TYPE(OHCIPCIState, PCI_OHCI)

struct OHCIPCIState {
    /*< private >*/
    PCIDevice parent_obj;
    /*< public >*/

    OHCIState state;
    char *masterbus;
    uint32_t num_ports;
    uint32_t firstport;
};

/**
 * A typical PCI OHCI will additionally set PERR in its configspace to
 * signal that it got an error.
 */
static void ohci_pci_die(struct OHCIState *ohci)
{
    OHCIPCIState *dev = container_of(ohci, OHCIPCIState, state);

    ohci_sysbus_die(ohci);

    pci_set_word(dev->parent_obj.config + PCI_STATUS,
                 PCI_STATUS_DETECTED_PARITY);
}

static void usb_ohci_realize_pci(PCIDevice *dev, Error **errp)
{
    Error *err = NULL;
    OHCIPCIState *ohci = PCI_OHCI(dev);

    dev->config[PCI_CLASS_PROG] = 0x10; /* OHCI */
    dev->config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin A */

    usb_ohci_init(&ohci->state, DEVICE(dev), ohci->num_ports, 0,
                  ohci->masterbus, ohci->firstport,
                  pci_get_address_space(dev), ohci_pci_die, &err);
    if (err) {
        error_propagate(errp, err);
        return;
    }

    ohci->state.irq = pci_allocate_irq(dev);
    pci_register_bar(dev, 0, 0, &ohci->state.mem);
}

static void usb_ohci_exit(PCIDevice *dev)
{
    OHCIPCIState *ohci = PCI_OHCI(dev);
    OHCIState *s = &ohci->state;

    trace_usb_ohci_exit(s->name);
    ohci_bus_stop(s);

    if (s->async_td) {
        usb_cancel_packet(&s->usb_packet);
        s->async_td = 0;
    }
    ohci_stop_endpoints(s);

    if (!ohci->masterbus) {
        usb_bus_release(&s->bus);
    }

    timer_free(s->eof_timer);
}

static void usb_ohci_reset_pci(DeviceState *d)
{
    PCIDevice *dev = PCI_DEVICE(d);
    OHCIPCIState *ohci = PCI_OHCI(dev);
    OHCIState *s = &ohci->state;

    ohci_hard_reset(s);
}

static Property ohci_pci_properties[] = {
    DEFINE_PROP_STRING("masterbus", OHCIPCIState, masterbus),
    DEFINE_PROP_UINT32("num-ports", OHCIPCIState, num_ports, 3),
    DEFINE_PROP_UINT32("firstport", OHCIPCIState, firstport, 0),
    DEFINE_PROP_END_OF_LIST(),
};

static const VMStateDescription vmstate_ohci = {
    .name = "ohci",
    .version_id = 1,
    .minimum_version_id = 1,
    .fields = (VMStateField[]) {
        VMSTATE_PCI_DEVICE(parent_obj, OHCIPCIState),
        VMSTATE_STRUCT(state, OHCIPCIState, 1, vmstate_ohci_state, OHCIState),
        VMSTATE_END_OF_LIST()
    }
};

static void ohci_pci_class_init(ObjectClass *klass, void *data)
{
    DeviceClass *dc = DEVICE_CLASS(klass);
    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);

    k->realize = usb_ohci_realize_pci;
    k->exit = usb_ohci_exit;
    k->vendor_id = PCI_VENDOR_ID_APPLE;
    k->device_id = PCI_DEVICE_ID_APPLE_IPID_USB;
    k->class_id = PCI_CLASS_SERIAL_USB;
    set_bit(DEVICE_CATEGORY_USB, dc->categories);
    dc->desc = "Apple USB Controller";
    device_class_set_props(dc, ohci_pci_properties);
    dc->hotpluggable = false;
    dc->vmsd = &vmstate_ohci;
    dc->reset = usb_ohci_reset_pci;
}

static const TypeInfo ohci_pci_info = {
    .name          = TYPE_PCI_OHCI,
    .parent        = TYPE_PCI_DEVICE,
    .instance_size = sizeof(OHCIPCIState),
    .class_init    = ohci_pci_class_init,
    .interfaces = (InterfaceInfo[]) {
        { INTERFACE_CONVENTIONAL_PCI_DEVICE },
        { },
    },
};

static void ohci_pci_register_types(void)
{
    type_register_static(&ohci_pci_info);
}

type_init(ohci_pci_register_types)