1 files changed, 131 insertions, 0 deletions
diff --git a/qemu/roms/seabios/src/hw/pci.h b/qemu/roms/seabios/src/hw/pci.h
new file mode 100644
index 000000000..0aaa84c1a
--- /dev/null
+++ b/qemu/roms/seabios/src/hw/pci.h
@@ -0,0 +1,131 @@
+#ifndef __PCI_H
+#define __PCI_H
+
+#include "types.h" // u32
+#include "list.h" // hlist_node
+
+#define PORT_PCI_CMD           0x0cf8
+#define PORT_PCI_REBOOT        0x0cf9
+#define PORT_PCI_DATA          0x0cfc
+
+#define PCI_ROM_SLOT 6
+#define PCI_NUM_REGIONS 7
+#define PCI_BRIDGE_NUM_REGIONS 2
+
+enum pci_region_type {
+    PCI_REGION_TYPE_IO,
+    PCI_REGION_TYPE_MEM,
+    PCI_REGION_TYPE_PREFMEM,
+    PCI_REGION_TYPE_COUNT,
+};
+
+static inline u8 pci_bdf_to_bus(u16 bdf) {
+    return bdf >> 8;
+}
+static inline u8 pci_bdf_to_devfn(u16 bdf) {
+    return bdf & 0xff;
+}
+static inline u16 pci_bdf_to_busdev(u16 bdf) {
+    return bdf & ~0x07;
+}
+static inline u8 pci_bdf_to_dev(u16 bdf) {
+    return (bdf >> 3) & 0x1f;
+}
+static inline u8 pci_bdf_to_fn(u16 bdf) {
+    return bdf & 0x07;
+}
+static inline u16 pci_to_bdf(int bus, int dev, int fn) {
+    return (bus<<8) | (dev<<3) | fn;
+}
+static inline u16 pci_bus_devfn_to_bdf(int bus, u16 devfn) {
+    return (bus << 8) | devfn;
+}
+
+void pci_config_writel(u16 bdf, u32 addr, u32 val);
+void pci_config_writew(u16 bdf, u32 addr, u16 val);
+void pci_config_writeb(u16 bdf, u32 addr, u8 val);
+u32 pci_config_readl(u16 bdf, u32 addr);
+u16 pci_config_readw(u16 bdf, u32 addr);
+u8 pci_config_readb(u16 bdf, u32 addr);
+void pci_config_maskw(u16 bdf, u32 addr, u16 off, u16 on);
+
+struct pci_device *pci_find_device(u16 vendid, u16 devid);
+struct pci_device *pci_find_class(u16 classid);
+
+struct pci_device {
+    u16 bdf;
+    u8 rootbus;
+    struct hlist_node node;
+    struct pci_device *parent;
+
+    // Configuration space device information
+    u16 vendor, device;
+    u16 class;
+    u8 prog_if, revision;
+    u8 header_type;
+    u8 secondary_bus;
+
+    // Local information on device.
+    int have_driver;
+};
+extern u64 pcimem_start, pcimem_end;
+extern u64 pcimem64_start, pcimem64_end;
+extern struct hlist_head PCIDevices;
+extern int MaxPCIBus;
+int pci_probe_host(void);
+void pci_probe_devices(void);
+static inline u32 pci_classprog(struct pci_device *pci) {
+    return (pci->class << 8) | pci->prog_if;
+}
+
+#define foreachpci(PCI)                                 \
+    hlist_for_each_entry(PCI, &PCIDevices, node)
+
+int pci_next(int bdf, int bus);
+#define foreachbdf(BDF, BUS)                                    \
+    for (BDF=pci_next(pci_bus_devfn_to_bdf((BUS), 0)-1, (BUS))  \
+         ; BDF >= 0                                             \
+         ; BDF=pci_next(BDF, (BUS)))
+
+#define PCI_ANY_ID      (~0)
+struct pci_device_id {
+    u32 vendid;
+    u32 devid;
+    u32 class;
+    u32 class_mask;
+    void (*func)(struct pci_device *pci, void *arg);
+};
+
+#define PCI_DEVICE(vendor_id, device_id, init_func)     \
+    {                                                   \
+        .vendid = (vendor_id),                          \
+        .devid = (device_id),                           \
+        .class = PCI_ANY_ID,                            \
+        .class_mask = 0,                                \
+        .func = (init_func)                             \
+    }
+
+#define PCI_DEVICE_CLASS(vendor_id, device_id, class_code, init_func)   \
+    {                                                                   \
+        .vendid = (vendor_id),                                          \
+        .devid = (device_id),                                           \
+        .class = (class_code),                                          \
+        .class_mask = ~0,                                               \
+        .func = (init_func)                                             \
+    }
+
+#define PCI_DEVICE_END                          \
+    {                                           \
+        .vendid = 0,                            \
+    }
+
+int pci_init_device(const struct pci_device_id *ids
+                    , struct pci_device *pci, void *arg);
+struct pci_device *pci_find_init_device(const struct pci_device_id *ids
+                                        , void *arg);
+u8 pci_find_capability(struct pci_device *pci, u8 cap_id);
+int pci_bridge_has_region(struct pci_device *pci,
+                          enum pci_region_type region_type);
+void pci_reboot(void);
+
+#endif