Be sure to add "void" to all function prototypes that take no args.

[seabios.git] / src / pci.h

diff --git a/src/pci.h b/src/pci.h
index 6afc9a9963011263b18607e3f4039ade2df32255..eea5b09c3b399be0ae1bac1db1c46049834e3b3c 100644 (file)
--- a/src/pci.h
+++ b/src/pci.h
@@ -1,13 +1,83 @@
+#ifndef __PCI_H
+#define __PCI_H
+
 #include "types.h" // u32
 
-typedef struct PCIDevice {
-    int bus;
-    int devfn;
-} PCIDevice;
-
-void pci_config_writel(PCIDevice *d, u32 addr, u32 val);
-void pci_config_writew(PCIDevice *d, u32 addr, u16 val);
-void pci_config_writeb(PCIDevice *d, u32 addr, u8 val);
-u32 pci_config_readl(PCIDevice *d, u32 addr);
-u16 pci_config_readw(PCIDevice *d, u32 addr);
-u8 pci_config_readb(PCIDevice *d, u32 addr);
+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;
+}
+
+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);
+
+int pci_find_vga(void);
+int pci_find_device(u16 vendid, u16 devid);
+int pci_find_class(u16 classid);
+
+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))
+
+// pirtable.c
+void create_pirtable(void);
+
+
+/****************************************************************
+ * PIR table
+ ****************************************************************/
+
+extern u16 PirOffset;
+
+struct link_info {
+    u8 link;
+    u16 bitmap;
+} PACKED;
+
+struct pir_slot {
+    u8 bus;
+    u8 dev;
+    struct link_info links[4];
+    u8 slot_nr;
+    u8 reserved;
+} PACKED;
+
+struct pir_header {
+    u32 signature;
+    u16 version;
+    u16 size;
+    u8 router_bus;
+    u8 router_devfunc;
+    u16 exclusive_irqs;
+    u32 compatible_devid;
+    u32 miniport_data;
+    u8 reserved[11];
+    u8 checksum;
+    struct pir_slot slots[0];
+} PACKED;
+
+#define PIR_SIGNATURE 0x52495024 // $PIR
+
+
+#endif