Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / media / pci / ivtv / ivtv-udma.h

diff --git a/kernel/drivers/media/pci/ivtv/ivtv-udma.h b/kernel/drivers/media/pci/ivtv/ivtv-udma.h
new file mode 100644 (file)
index 0000000..ee3c9ef
--- /dev/null
+++ b/kernel/drivers/media/pci/ivtv/ivtv-udma.h
@@ -0,0 +1,48 @@
+/*
+    Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
+    Copyright (C) 2004  Chris Kennedy <c@groovy.org>
+    Copyright (C) 2006-2007  Hans Verkuil <hverkuil@xs4all.nl>
+
+    This program 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 2 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef IVTV_UDMA_H
+#define IVTV_UDMA_H
+
+/* User DMA functions */
+void ivtv_udma_get_page_info(struct ivtv_dma_page_info *dma_page, unsigned long first, unsigned long size);
+int ivtv_udma_fill_sg_list(struct ivtv_user_dma *dma, struct ivtv_dma_page_info *dma_page, int map_offset);
+void ivtv_udma_fill_sg_array(struct ivtv_user_dma *dma, u32 buffer_offset, u32 buffer_offset_2, u32 split);
+int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr,
+                      void __user *userbuf, int size_in_bytes);
+void ivtv_udma_unmap(struct ivtv *itv);
+void ivtv_udma_free(struct ivtv *itv);
+void ivtv_udma_alloc(struct ivtv *itv);
+void ivtv_udma_prepare(struct ivtv *itv);
+void ivtv_udma_start(struct ivtv *itv);
+
+static inline void ivtv_udma_sync_for_device(struct ivtv *itv)
+{
+       pci_dma_sync_single_for_device(itv->pdev, itv->udma.SG_handle,
+               sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
+}
+
+static inline void ivtv_udma_sync_for_cpu(struct ivtv *itv)
+{
+       pci_dma_sync_single_for_cpu(itv->pdev, itv->udma.SG_handle,
+               sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
+}
+
+#endif