grml...

[seabios.git] / src / pci.h

diff --git a/src/pci.h b/src/pci.h
index 89265840726ef2591261d7432af1707452bceeba..a2a5a4c71f23cf25fa03928511a2cefec6298320 100644 (file)
--- a/src/pci.h
+++ b/src/pci.h
@@ -3,12 +3,18 @@
 
 #include "types.h" // u32
 
+#define PCI_ROM_SLOT 6
+#define PCI_NUM_REGIONS 7
+
 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;
 }
@@ -18,6 +24,9 @@ static inline u8 pci_bdf_to_fn(u16 bdf) {
 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);
@@ -25,19 +34,93 @@ 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 pci_device *next;
+    struct pci_device *parent;
+
+    // Configuration space device information
+    u16 vendor, device;
+    u16 class;
+    u8 prog_if, revision;
+    u8 header_type;
+    u8 secondary_bus;
+    struct {
+        u32 addr;
+        u32 size;
+        int is64;
+    } bars[PCI_NUM_REGIONS];
+
+    // Local information on device.
+    int have_driver;
+};
+extern struct pci_device *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)                         \
+    for (PCI=PCIDevices; PCI; PCI=PCI->next)
+
+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_find_vga();
-int pci_find_device(u16 vendid, u16 devid);
-int pci_find_class(u16 classid);
+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);
+void pci_reboot(void);
 
-int pci_next(int bdf, int *pmax);
-#define foreachpci(BDF, MAX)                    \
-    for (MAX=0x0100, BDF=pci_next(0, &MAX)      \
-         ; BDF >= 0                             \
-         ; BDF=pci_next(BDF+1, &MAX))
+// helper functions to access pci mmio bars from real mode
+u32 pci_readl(u32 addr);
+void pci_writel(u32 addr, u32 val);
 
 // pirtable.c
-void create_pirtable();
+void create_pirtable(void);
 
 
 /****************************************************************