hw/pci.h

   1 #ifndef QEMU_PCI_H
   2 #define QEMU_PCI_H
   3
   4 /* PCI includes legacy ISA access.  */
   5 #include "isa.h"
   6
   7 /* PCI bus */
   8
   9 extern target_phys_addr_t pci_mem_base;
  10
  11 /* see pci-ids.txt */
  12 #define PCI_VENDOR_ID_REDHAT_QUMRANET    0x1af4
  13 #define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4
  14 #define PCI_SUBDEVICE_ID_QEMU            0x1100
  15
  16 #define PCI_DEVICE_ID_VIRTIO_NET         0x1000
  17 #define PCI_DEVICE_ID_VIRTIO_BLOCK       0x1001
  18 #define PCI_DEVICE_ID_VIRTIO_BALLOON     0x1002
  19
  20 typedef void PCIConfigWriteFunc(PCIDevice *pci_dev,
  21                                 uint32_t address, uint32_t data, int len);
  22 typedef uint32_t PCIConfigReadFunc(PCIDevice *pci_dev,
  23                                    uint32_t address, int len);
  24 typedef void PCIMapIORegionFunc(PCIDevice *pci_dev, int region_num,
  25                                 uint32_t addr, uint32_t size, int type);
  26
  27 #define PCI_ADDRESS_SPACE_MEM           0x00
  28 #define PCI_ADDRESS_SPACE_IO            0x01
  29 #define PCI_ADDRESS_SPACE_MEM_PREFETCH  0x08
  30
  31 typedef struct PCIIORegion {
  32     uint32_t addr; /* current PCI mapping address. -1 means not mapped */
  33     uint32_t size;
  34     uint8_t type;
  35     PCIMapIORegionFunc *map_func;
  36 } PCIIORegion;
  37
  38 #define PCI_ROM_SLOT 6
  39 #define PCI_NUM_REGIONS 7
  40
  41 #define PCI_DEVICES_MAX 64
  42
  43 #define PCI_VENDOR_ID           0x00    /* 16 bits */
  44 #define PCI_DEVICE_ID           0x02    /* 16 bits */
  45 #define PCI_COMMAND             0x04    /* 16 bits */
  46 #define  PCI_COMMAND_IO         0x1     /* Enable response in I/O space */
  47 #define  PCI_COMMAND_MEMORY     0x2     /* Enable response in Memory space */
  48 #define PCI_REVISION            0x08
  49 #define PCI_CLASS_DEVICE        0x0a    /* Device class */
  50 #define PCI_SUBVENDOR_ID        0x2c    /* 16 bits */
  51 #define PCI_SUBDEVICE_ID        0x2e    /* 16 bits */
  52 #define PCI_INTERRUPT_LINE      0x3c    /* 8 bits */
  53 #define PCI_INTERRUPT_PIN       0x3d    /* 8 bits */
  54 #define PCI_MIN_GNT             0x3e    /* 8 bits */
  55 #define PCI_MAX_LAT             0x3f    /* 8 bits */
  56
  57 /* Bits in the PCI Status Register (PCI 2.3 spec) */
  58 #define PCI_STATUS_RESERVED1    0x007
  59 #define PCI_STATUS_INT_STATUS   0x008
  60 #define PCI_STATUS_CAPABILITIES 0x010
  61 #define PCI_STATUS_66MHZ        0x020
  62 #define PCI_STATUS_RESERVED2    0x040
  63 #define PCI_STATUS_FAST_BACK    0x080
  64 #define PCI_STATUS_DEVSEL       0x600
  65
  66 #define PCI_STATUS_RESERVED_MASK_LO (PCI_STATUS_RESERVED1 | \
  67                 PCI_STATUS_INT_STATUS | PCI_STATUS_CAPABILITIES | \
  68                 PCI_STATUS_66MHZ | PCI_STATUS_RESERVED2 | PCI_STATUS_FAST_BACK)
  69
  70 #define PCI_STATUS_RESERVED_MASK_HI (PCI_STATUS_DEVSEL >> 8)
  71
  72 /* Bits in the PCI Command Register (PCI 2.3 spec) */
  73 #define PCI_COMMAND_RESERVED    0xf800
  74
  75 #define PCI_COMMAND_RESERVED_MASK_HI (PCI_COMMAND_RESERVED >> 8)
  76
  77 struct PCIDevice {
  78     /* PCI config space */
  79     uint8_t config[256];
  80
  81     /* the following fields are read only */
  82     PCIBus *bus;
  83     int devfn;
  84     char name[64];
  85     PCIIORegion io_regions[PCI_NUM_REGIONS];
  86
  87     /* do not access the following fields */
  88     PCIConfigReadFunc *config_read;
  89     PCIConfigWriteFunc *config_write;
  90     /* ??? This is a PC-specific hack, and should be removed.  */
  91     int irq_index;
  92
  93     /* IRQ objects for the INTA-INTD pins.  */
  94     qemu_irq *irq;
  95
  96     /* Current IRQ levels.  Used internally by the generic PCI code.  */
  97     int irq_state[4];
  98 };
  99
 100 PCIDevice *pci_register_device(PCIBus *bus, const char *name,
 101                                int instance_size, int devfn,
 102                                PCIConfigReadFunc *config_read,
 103                                PCIConfigWriteFunc *config_write);
 104
 105 void pci_register_io_region(PCIDevice *pci_dev, int region_num,
 106                             uint32_t size, int type,
 107                             PCIMapIORegionFunc *map_func);
 108
 109 uint32_t pci_default_read_config(PCIDevice *d,
 110                                  uint32_t address, int len);
 111 void pci_default_write_config(PCIDevice *d,
 112                               uint32_t address, uint32_t val, int len);
 113 void pci_device_save(PCIDevice *s, QEMUFile *f);
 114 int pci_device_load(PCIDevice *s, QEMUFile *f);
 115
 116 typedef void (*pci_set_irq_fn)(qemu_irq *pic, int irq_num, int level);
 117 typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num);
 118 PCIBus *pci_register_bus(pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
 119                          qemu_irq *pic, int devfn_min, int nirq);
 120
 121 void pci_nic_init(PCIBus *bus, NICInfo *nd, int devfn,
 122                   const char *default_model);
 123 void pci_data_write(void *opaque, uint32_t addr, uint32_t val, int len);
 124 uint32_t pci_data_read(void *opaque, uint32_t addr, int len);
 125 int pci_bus_num(PCIBus *s);
 126 void pci_for_each_device(int bus_num, void (*fn)(PCIDevice *d));
 127
 128 void pci_info(void);
 129 PCIBus *pci_bridge_init(PCIBus *bus, int devfn, uint32_t id,
 130                         pci_map_irq_fn map_irq, const char *name);
 131
 132 /* lsi53c895a.c */
 133 #define LSI_MAX_DEVS 7
 134 void lsi_scsi_attach(void *opaque, BlockDriverState *bd, int id);
 135 void *lsi_scsi_init(PCIBus *bus, int devfn);
 136
 137 /* vmware_vga.c */
 138 void pci_vmsvga_init(PCIBus *bus, DisplayState *ds, uint8_t *vga_ram_base,
 139                      unsigned long vga_ram_offset, int vga_ram_size);
 140
 141 /* usb-uhci.c */
 142 void usb_uhci_piix3_init(PCIBus *bus, int devfn);
 143 void usb_uhci_piix4_init(PCIBus *bus, int devfn);
 144
 145 /* usb-ohci.c */
 146 void usb_ohci_init_pci(struct PCIBus *bus, int num_ports, int devfn);
 147
 148 /* eepro100.c */
 149
 150 void pci_i82551_init(PCIBus *bus, NICInfo *nd, int devfn);
 151 void pci_i82557b_init(PCIBus *bus, NICInfo *nd, int devfn);
 152 void pci_i82559er_init(PCIBus *bus, NICInfo *nd, int devfn);
 153
 154 /* ne2000.c */
 155
 156 void pci_ne2000_init(PCIBus *bus, NICInfo *nd, int devfn);
 157
 158 /* rtl8139.c */
 159
 160 void pci_rtl8139_init(PCIBus *bus, NICInfo *nd, int devfn);
 161
 162 /* e1000.c */
 163 void pci_e1000_init(PCIBus *bus, NICInfo *nd, int devfn);
 164
 165 /* pcnet.c */
 166 void pci_pcnet_init(PCIBus *bus, NICInfo *nd, int devfn);
 167
 168 /* prep_pci.c */
 169 PCIBus *pci_prep_init(qemu_irq *pic);
 170
 171 /* apb_pci.c */
 172 PCIBus *pci_apb_init(target_phys_addr_t special_base,
 173                      target_phys_addr_t mem_base,
 174                      qemu_irq *pic, PCIBus **bus2, PCIBus **bus3);
 175
 176 /* sh_pci.c */
 177 PCIBus *sh_pci_register_bus(pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
 178                             qemu_irq *pic, int devfn_min, int nirq);
 179
 180 #endif