These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / media / pci / cobalt / cobalt-omnitek.h

diff --git a/kernel/drivers/media/pci/cobalt/cobalt-omnitek.h b/kernel/drivers/media/pci/cobalt/cobalt-omnitek.h
new file mode 100644 (file)
index 0000000..e5c6d03
--- /dev/null
+++ b/kernel/drivers/media/pci/cobalt/cobalt-omnitek.h
@@ -0,0 +1,62 @@
+/*
+ *  Omnitek Scatter-Gather DMA Controller
+ *
+ *  Copyright 2012-2015 Cisco Systems, Inc. and/or its affiliates.
+ *  All rights reserved.
+ *
+ *  This program is free software; you may redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ *  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ *  ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ *  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+#ifndef COBALT_OMNITEK_H
+#define COBALT_OMNITEK_H
+
+#include <linux/scatterlist.h>
+#include "cobalt-driver.h"
+
+struct sg_dma_descriptor {
+       u32 pci_l;
+       u32 pci_h;
+
+       u32 local;
+       u32 reserved0;
+
+       u32 next_l;
+       u32 next_h;
+
+       u32 bytes;
+       u32 reserved1;
+};
+
+int omni_sg_dma_init(struct cobalt *cobalt);
+void omni_sg_dma_abort_channel(struct cobalt_stream *s);
+void omni_sg_dma_start(struct cobalt_stream *s, struct sg_dma_desc_info *desc);
+bool is_dma_done(struct cobalt_stream *s);
+
+int descriptor_list_create(struct cobalt *cobalt,
+       struct scatterlist *scatter_list, bool to_pci, unsigned sglen,
+       unsigned size, unsigned width, unsigned stride,
+       struct sg_dma_desc_info *desc);
+
+void descriptor_list_chain(struct sg_dma_desc_info *this,
+                          struct sg_dma_desc_info *next);
+void descriptor_list_loopback(struct sg_dma_desc_info *desc);
+void descriptor_list_end_of_chain(struct sg_dma_desc_info *desc);
+
+void *descriptor_list_allocate(struct sg_dma_desc_info *desc, size_t bytes);
+void descriptor_list_free(struct sg_dma_desc_info *desc);
+
+void descriptor_list_interrupt_enable(struct sg_dma_desc_info *desc);
+void descriptor_list_interrupt_disable(struct sg_dma_desc_info *desc);
+
+#endif