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authorDaniel Baumann <mail@daniel-baumann.ch>2025-06-06 10:05:23 +0000
committerDaniel Baumann <mail@daniel-baumann.ch>2025-06-06 10:05:23 +0000
commit755cc582a2473d06f3a2131d506d0311cc70e9f9 (patch)
tree3efb1ddb8d57bbb4539ac0d229b384871c57820f /hw/usb/vt82c686-uhci-pci.c
parentInitial commit. (diff)
downloadqemu-upstream.tar.xz
qemu-upstream.zip
Adding upstream version 1:7.2+dfsg.upstream/1%7.2+dfsgupstream
Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>
Diffstat (limited to 'hw/usb/vt82c686-uhci-pci.c')
-rw-r--r--hw/usb/vt82c686-uhci-pci.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/hw/usb/vt82c686-uhci-pci.c b/hw/usb/vt82c686-uhci-pci.c
new file mode 100644
index 00000000..46a901f5
--- /dev/null
+++ b/hw/usb/vt82c686-uhci-pci.c
@@ -0,0 +1,58 @@
+#include "qemu/osdep.h"
+#include "hw/irq.h"
+#include "hw/isa/vt82c686.h"
+#include "hcd-uhci.h"
+
+static void uhci_isa_set_irq(void *opaque, int irq_num, int level)
+{
+ UHCIState *s = opaque;
+ uint8_t irq = pci_get_byte(s->dev.config + PCI_INTERRUPT_LINE);
+ if (irq > 0 && irq < 15) {
+ via_isa_set_irq(pci_get_function_0(&s->dev), irq, level);
+ }
+}
+
+static void usb_uhci_vt82c686b_realize(PCIDevice *dev, Error **errp)
+{
+ UHCIState *s = UHCI(dev);
+ uint8_t *pci_conf = s->dev.config;
+
+ /* USB misc control 1/2 */
+ pci_set_long(pci_conf + 0x40, 0x00001000);
+ /* PM capability */
+ pci_set_long(pci_conf + 0x80, 0x00020001);
+ /* USB legacy support */
+ pci_set_long(pci_conf + 0xc0, 0x00002000);
+
+ usb_uhci_common_realize(dev, errp);
+ object_unref(s->irq);
+ s->irq = qemu_allocate_irq(uhci_isa_set_irq, s, 0);
+}
+
+static UHCIInfo uhci_info[] = {
+ {
+ .name = TYPE_VT82C686B_USB_UHCI,
+ .vendor_id = PCI_VENDOR_ID_VIA,
+ .device_id = PCI_DEVICE_ID_VIA_UHCI,
+ .revision = 0x01,
+ .irq_pin = 3,
+ .realize = usb_uhci_vt82c686b_realize,
+ .unplug = true,
+ /* Reason: only works as USB function of VT82xx superio chips */
+ .notuser = true,
+ }
+};
+
+static const TypeInfo vt82c686b_usb_uhci_type_info = {
+ .parent = TYPE_UHCI,
+ .name = TYPE_VT82C686B_USB_UHCI,
+ .class_init = uhci_data_class_init,
+ .class_data = uhci_info,
+};
+
+static void vt82c686b_usb_uhci_register_types(void)
+{
+ type_register_static(&vt82c686b_usb_uhci_type_info);
+}
+
+type_init(vt82c686b_usb_uhci_register_types)