From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- drivers/media/pci/cobalt/cobalt-omnitek.h | 50 +++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 drivers/media/pci/cobalt/cobalt-omnitek.h (limited to 'drivers/media/pci/cobalt/cobalt-omnitek.h') diff --git a/drivers/media/pci/cobalt/cobalt-omnitek.h b/drivers/media/pci/cobalt/cobalt-omnitek.h new file mode 100644 index 000000000..129c5fccb --- /dev/null +++ b/drivers/media/pci/cobalt/cobalt-omnitek.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Omnitek Scatter-Gather DMA Controller + * + * Copyright 2012-2015 Cisco Systems, Inc. and/or its affiliates. + * All rights reserved. + */ + +#ifndef COBALT_OMNITEK_H +#define COBALT_OMNITEK_H + +#include +#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 -- cgit v1.2.3