xref: /openbmc/qemu/hw/usb/vt82c686-uhci-pci.c (revision 542b10bd)
1 #include "qemu/osdep.h"
2 #include "hw/irq.h"
3 #include "hw/isa/vt82c686.h"
4 #include "hcd-uhci.h"
5 
6 static void uhci_isa_set_irq(void *opaque, int irq_num, int level)
7 {
8     UHCIState *s = opaque;
9     via_isa_set_irq(&s->dev, 0, level);
10 }
11 
12 static void usb_uhci_vt82c686b_realize(PCIDevice *dev, Error **errp)
13 {
14     UHCIState *s = UHCI(dev);
15     uint8_t *pci_conf = s->dev.config;
16 
17     /* USB misc control 1/2 */
18     pci_set_long(pci_conf + 0x40, 0x00001000);
19     /* PM capability */
20     pci_set_long(pci_conf + 0x80, 0x00020001);
21     /* USB legacy support  */
22     pci_set_long(pci_conf + 0xc0, 0x00002000);
23 
24     usb_uhci_common_realize(dev, errp);
25     object_unref(s->irq);
26     s->irq = qemu_allocate_irq(uhci_isa_set_irq, s, 0);
27 }
28 
29 static UHCIInfo uhci_info[] = {
30     {
31         .name      = TYPE_VT82C686B_USB_UHCI,
32         .vendor_id = PCI_VENDOR_ID_VIA,
33         .device_id = PCI_DEVICE_ID_VIA_UHCI,
34         .revision  = 0x01,
35         .irq_pin   = 3,
36         .realize   = usb_uhci_vt82c686b_realize,
37         .unplug    = true,
38         /* Reason: only works as USB function of VT82xx superio chips */
39         .notuser   = true,
40     }
41 };
42 
43 static const TypeInfo vt82c686b_usb_uhci_type_info = {
44     .parent         = TYPE_UHCI,
45     .name           = TYPE_VT82C686B_USB_UHCI,
46     .class_init     = uhci_data_class_init,
47     .class_data     = uhci_info,
48 };
49 
50 static void vt82c686b_usb_uhci_register_types(void)
51 {
52     type_register_static(&vt82c686b_usb_uhci_type_info);
53 }
54 
55 type_init(vt82c686b_usb_uhci_register_types)
56