diff options
author | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-11 10:41:07 +0300 |
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committer | José Pekkarinen <jose.pekkarinen@nokia.com> | 2016-04-13 08:17:18 +0300 |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/media/pci/cobalt/cobalt-omnitek.h | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/media/pci/cobalt/cobalt-omnitek.h')
-rw-r--r-- | kernel/drivers/media/pci/cobalt/cobalt-omnitek.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/kernel/drivers/media/pci/cobalt/cobalt-omnitek.h b/kernel/drivers/media/pci/cobalt/cobalt-omnitek.h new file mode 100644 index 000000000..e5c6d032c --- /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 |