1 files changed, 144 insertions, 0 deletions
diff --git a/roms/seabios/src/hw/usb-xhci.h b/roms/seabios/src/hw/usb-xhci.h
new file mode 100644
index 000000000..64ee82c25
--- /dev/null
+++ b/roms/seabios/src/hw/usb-xhci.h
@@ -0,0 +1,144 @@
+#ifndef __USB_XHCI_H
+#define __USB_XHCI_H
+
+struct usbdevice_s;
+struct usb_endpoint_descriptor;
+struct usb_pipe;
+
+// --------------------------------------------------------------
+
+// usb-xhci.c
+int xhci_setup(struct pci_device *pci, int busid);
+struct usb_pipe *xhci_alloc_pipe(struct usbdevice_s *usbdev
+                                 , struct usb_endpoint_descriptor *epdesc);
+struct usb_pipe *xhci_update_pipe(struct usbdevice_s *usbdev
+                                  , struct usb_pipe *pipe
+                                  , struct usb_endpoint_descriptor *epdesc);
+int xhci_control(struct usb_pipe *p, int dir, const void *cmd, int cmdsize
+                 , void *data, int datasize);
+int xhci_send_bulk(struct usb_pipe *p, int dir, void *data, int datasize);
+int xhci_poll_intr(struct usb_pipe *p, void *data);
+
+// --------------------------------------------------------------
+// register interface
+
+// capabilities
+struct xhci_caps {
+    u8  caplength;
+    u8  reserved_01;
+    u16 hciversion;
+    u32 hcsparams1;
+    u32 hcsparams2;
+    u32 hcsparams3;
+    u32 hccparams;
+    u32 dboff;
+    u32 rtsoff;
+} PACKED;
+
+// extended capabilities
+struct xhci_xcap {
+    u32 cap;
+    u32 data[];
+} PACKED;
+
+// operational registers
+struct xhci_op {
+    u32 usbcmd;
+    u32 usbsts;
+    u32 pagesize;
+    u32 reserved_01[2];
+    u32 dnctl;
+    u32 crcr_low;
+    u32 crcr_high;
+    u32 reserved_02[4];
+    u32 dcbaap_low;
+    u32 dcbaap_high;
+    u32 config;
+} PACKED;
+
+// port registers
+struct xhci_pr {
+    u32 portsc;
+    u32 portpmsc;
+    u32 portli;
+    u32 reserved_01;
+} PACKED;
+
+// doorbell registers
+struct xhci_db {
+    u32 doorbell;
+} PACKED;
+
+// runtime registers
+struct xhci_rts {
+    u32 mfindex;
+} PACKED;
+
+// interrupter registers
+struct xhci_ir {
+    u32 iman;
+    u32 imod;
+    u32 erstsz;
+    u32 reserved_01;
+    u32 erstba_low;
+    u32 erstba_high;
+    u32 erdp_low;
+    u32 erdp_high;
+} PACKED;
+
+// --------------------------------------------------------------
+// memory data structs
+
+// slot context
+struct xhci_slotctx {
+    u32 ctx[4];
+    u32 reserved_01[4];
+} PACKED;
+
+// endpoint context
+struct xhci_epctx {
+    u32 ctx[2];
+    u32 deq_low;
+    u32 deq_high;
+    u32 length;
+    u32 reserved_01[3];
+} PACKED;
+
+// device context
+struct xhci_devctx {
+    struct xhci_slotctx slot;
+    struct xhci_epctx   ep[31];
+} PACKED;
+
+// device context array element
+struct xhci_devlist {
+    u32 ptr_low;
+    u32 ptr_high;
+} PACKED;
+
+// input context
+struct xhci_inctx {
+    u32 del;
+    u32 add;
+    u32 reserved_01[6];
+    struct xhci_slotctx slot;
+    struct xhci_epctx   ep[31];
+} PACKED;
+
+// transfer block (ring element)
+struct xhci_trb {
+    u32 ptr_low;
+    u32 ptr_high;
+    u32 status;
+    u32 control;
+} PACKED;
+
+// event ring segment
+struct xhci_er_seg {
+    u32 ptr_low;
+    u32 ptr_high;
+    u32 size;
+    u32 reserved_01;
+} PACKED;
+
+#endif // usb-xhci.h