[SeaBIOS] [PATCH 10/11] ehci: Export ehci_realloc_pipe() instead of ehci_alloc_pipe()

[Kevin O'Connor]

Support alloc, update, and free from the single exported function.

Signed-off-by: Kevin O'Connor 
---
 src/hw/usb-ehci.c | 7 +++++--
 src/hw/usb-ehci.h | 5 +++--
 src/hw/usb.c      | 2 +-
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/hw/usb-ehci.c b/src/hw/usb-ehci.c
index 1df7ec8..8938915 100644
--- a/src/hw/usb-ehci.c
+++ b/src/hw/usb-ehci.c
@@ -445,11 +445,14 @@ fail:
 }

struct usb_pipe *
-ehci_alloc_pipe(struct usbdevice_s *usbdev
-                , struct usb_endpoint_descriptor *epdesc)
+ehci_realloc_pipe(struct usbdevice_s *usbdev, struct usb_pipe *upipe
+                  , struct usb_endpoint_descriptor *epdesc)
 {
     if (! CONFIG_USB_EHCI)
         return NULL;
+    usb_add_freelist(upipe);
+    if (!epdesc)
+        return NULL;
     u8 eptype = epdesc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
     if (eptype == USB_ENDPOINT_XFER_INT)
         return ehci_alloc_intr_pipe(usbdev, epdesc);
diff --git a/src/hw/usb-ehci.h b/src/hw/usb-ehci.h
index 6346d78..da74438 100644
--- a/src/hw/usb-ehci.h
+++ b/src/hw/usb-ehci.h
@@ -5,9 +5,10 @@
 void ehci_setup(void);
 struct usbdevice_s;
 struct usb_endpoint_descriptor;
-struct usb_pipe *ehci_alloc_pipe(struct usbdevice_s *usbdev
-                                 , struct usb_endpoint_descriptor *epdesc);
 struct usb_pipe;
+struct usb_pipe *ehci_realloc_pipe(struct usbdevice_s *usbdev
+                                   , struct usb_pipe *upipe
+                                   , struct usb_endpoint_descriptor *epdesc);
 int ehci_send_control(struct usb_pipe *p, int dir, const void *cmd, int cmdsize
                       , void *data, int datasize);
 int ehci_send_bulk(struct usb_pipe *p, int dir, void *data, int datasize);
diff --git a/src/hw/usb.c b/src/hw/usb.c
index 8551c4d..1714968 100644
--- a/src/hw/usb.c
+++ b/src/hw/usb.c
@@ -38,7 +38,7 @@ usb_alloc_pipe(struct usbdevice_s *usbdev
     case USB_TYPE_OHCI:
         return ohci_realloc_pipe(usbdev, NULL, epdesc);
     case USB_TYPE_EHCI:
-        return ehci_alloc_pipe(usbdev, epdesc);
+        return ehci_realloc_pipe(usbdev, NULL, epdesc);
     case USB_TYPE_XHCI:
         return xhci_realloc_pipe(usbdev, NULL, epdesc);
     }