DMA split

grub-core/bus/usb/ehci.c

@@ -25,8 +25,7 @@
 #include <grub/time.h>
 #include <grub/loader.h>
 #include <grub/disk.h>
-/* For DMA. TODO(phcoder): Move DMA to separate header.  */
+#include <grub/dma.h>
-#include <grub/pci.h>
 
 GRUB_MOD_LICENSE ("GPLv3+");
 

grub-core/bus/usb/usbtrans.c

@@ -18,7 +18,7 @@
  */
 
 #include <grub/dl.h>
-#include <grub/pci.h>
+#include <grub/dma.h>
 #include <grub/mm.h>
 #include <grub/misc.h>
 #include <grub/usb.h>

include/grub/dma.h

@@ -0,0 +1,44 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef	GRUB_DMA_H
+#define	GRUB_DMA_H	1
+
+struct grub_pci_dma_chunk;
+
+struct grub_pci_dma_chunk *EXPORT_FUNC(grub_memalign_dma32) (grub_size_t align,
+							     grub_size_t size);
+void EXPORT_FUNC(grub_dma_free) (struct grub_pci_dma_chunk *ch);
+volatile void *EXPORT_FUNC(grub_dma_get_virt) (struct grub_pci_dma_chunk *ch);
+grub_uint32_t EXPORT_FUNC(grub_dma_get_phys) (struct grub_pci_dma_chunk *ch);
+
+static inline void *
+grub_dma_phys2virt (grub_uint32_t phys, struct grub_pci_dma_chunk *chunk)
+{
+  return ((grub_uint8_t *) grub_dma_get_virt (chunk)
+	  + (phys - grub_dma_get_phys (chunk)));
+}
+
+static inline grub_uint32_t
+grub_dma_virt2phys (volatile void *virt, struct grub_pci_dma_chunk *chunk)
+{
+  return (((grub_uint8_t *) virt - (grub_uint8_t *) grub_dma_get_virt (chunk))
+	  + grub_dma_get_phys (chunk));
+}
+
+#endif

include/grub/pci.h

@@ -142,27 +142,7 @@ grub_pci_address_t EXPORT_FUNC(grub_pci_make_address) (grub_pci_device_t dev,
 void EXPORT_FUNC(grub_pci_iterate) (grub_pci_iteratefunc_t hook,
 				    void *hook_data);
 
-struct grub_pci_dma_chunk;
+#include <grub/dma.h>
-
-struct grub_pci_dma_chunk *EXPORT_FUNC(grub_memalign_dma32) (grub_size_t align,
-							     grub_size_t size);
-void EXPORT_FUNC(grub_dma_free) (struct grub_pci_dma_chunk *ch);
-volatile void *EXPORT_FUNC(grub_dma_get_virt) (struct grub_pci_dma_chunk *ch);
-grub_uint32_t EXPORT_FUNC(grub_dma_get_phys) (struct grub_pci_dma_chunk *ch);
-
-static inline void *
-grub_dma_phys2virt (grub_uint32_t phys, struct grub_pci_dma_chunk *chunk)
-{
-  return ((grub_uint8_t *) grub_dma_get_virt (chunk)
-	  + (phys - grub_dma_get_phys (chunk)));
-}
-
-static inline grub_uint32_t
-grub_dma_virt2phys (volatile void *virt, struct grub_pci_dma_chunk *chunk)
-{
-  return (((grub_uint8_t *) virt - (grub_uint8_t *) grub_dma_get_virt (chunk))
-	  + grub_dma_get_phys (chunk));
-}
 
 grub_uint8_t
 EXPORT_FUNC (grub_pci_find_capability) (grub_pci_device_t dev, grub_uint8_t cap);