hw/audio/via-ac97.c

   1 /*
   2  * VIA south bridges sound support
   3  *
   4  * This work is licensed under the GNU GPL license version 2 or later.
   5  */
   6
   7 /*
   8  * TODO: This is entirely boiler plate just registering empty PCI devices
   9  * with the right ID guests expect, functionality should be added here.
  10  */
  11
  12 #include "qemu/osdep.h"
  13 #include "hw/isa/vt82c686.h"
  14 #include "hw/pci/pci.h"
  15
  16 static void via_ac97_realize(PCIDevice *pci_dev, Error **errp)
  17 {
  18     pci_set_word(pci_dev->config + PCI_COMMAND,
  19                  PCI_COMMAND_INVALIDATE | PCI_COMMAND_PARITY);
  20     pci_set_word(pci_dev->config + PCI_STATUS,
  21                  PCI_STATUS_CAP_LIST | PCI_STATUS_DEVSEL_MEDIUM);
  22     pci_set_long(pci_dev->config + PCI_INTERRUPT_PIN, 0x03);
  23 }
  24
  25 static void via_ac97_class_init(ObjectClass *klass, void *data)
  26 {
  27     DeviceClass *dc = DEVICE_CLASS(klass);
  28     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
  29
  30     k->realize = via_ac97_realize;
  31     k->vendor_id = PCI_VENDOR_ID_VIA;
  32     k->device_id = PCI_DEVICE_ID_VIA_AC97;
  33     k->revision = 0x50;
  34     k->class_id = PCI_CLASS_MULTIMEDIA_AUDIO;
  35     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
  36     dc->desc = "VIA AC97";
  37     /* Reason: Part of a south bridge chip */
  38     dc->user_creatable = false;
  39 }
  40
  41 static const TypeInfo via_ac97_info = {
  42     .name          = TYPE_VIA_AC97,
  43     .parent        = TYPE_PCI_DEVICE,
  44     .instance_size = sizeof(PCIDevice),
  45     .class_init    = via_ac97_class_init,
  46     .interfaces = (InterfaceInfo[]) {
  47         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
  48         { },
  49     },
  50 };
  51
  52 static void via_mc97_realize(PCIDevice *pci_dev, Error **errp)
  53 {
  54     pci_set_word(pci_dev->config + PCI_COMMAND,
  55                  PCI_COMMAND_INVALIDATE | PCI_COMMAND_VGA_PALETTE);
  56     pci_set_word(pci_dev->config + PCI_STATUS, PCI_STATUS_DEVSEL_MEDIUM);
  57     pci_set_long(pci_dev->config + PCI_INTERRUPT_PIN, 0x03);
  58 }
  59
  60 static void via_mc97_class_init(ObjectClass *klass, void *data)
  61 {
  62     DeviceClass *dc = DEVICE_CLASS(klass);
  63     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
  64
  65     k->realize = via_mc97_realize;
  66     k->vendor_id = PCI_VENDOR_ID_VIA;
  67     k->device_id = PCI_DEVICE_ID_VIA_MC97;
  68     k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
  69     k->revision = 0x30;
  70     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
  71     dc->desc = "VIA MC97";
  72     /* Reason: Part of a south bridge chip */
  73     dc->user_creatable = false;
  74 }
  75
  76 static const TypeInfo via_mc97_info = {
  77     .name          = TYPE_VIA_MC97,
  78     .parent        = TYPE_PCI_DEVICE,
  79     .instance_size = sizeof(PCIDevice),
  80     .class_init    = via_mc97_class_init,
  81     .interfaces = (InterfaceInfo[]) {
  82         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
  83         { },
  84     },
  85 };
  86
  87 static void via_ac97_register_types(void)
  88 {
  89     type_register_static(&via_ac97_info);
  90     type_register_static(&via_mc97_info);
  91 }
  92
  93 type_init(via_ac97_register_types)