43d81d43fe
This commit adds the headers and definitions required for the bcm2835_isp and bcm2835_unicam kernel modules. The headers come from patches recently posted to the linux-media@vger.kernel.org mailing list to add the Unicam and ISP peripherals drivers to the kernel. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
135 lines
4 KiB
C
135 lines
4 KiB
C
/*
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Copyright (c) 2012, Broadcom Europe Ltd
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright 2019 Raspberry Pi (Trading) Ltd. All rights reserved.
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*
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* Based on vmcs_sm_ioctl.h Copyright Broadcom Corporation.
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*/
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#ifndef __VC_SM_CMA_IOCTL_H
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#define __VC_SM_CMA_IOCTL_H
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/* ---- Include Files ---------------------------------------------------- */
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#include <linux/types.h> /* Needed for standard types */
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#include <linux/ioctl.h>
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/* ---- Constants and Types ---------------------------------------------- */
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#define VC_SM_CMA_RESOURCE_NAME 32
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#define VC_SM_CMA_RESOURCE_NAME_DEFAULT "sm-host-resource"
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/* Type define used to create unique IOCTL number */
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#define VC_SM_CMA_MAGIC_TYPE 'J'
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/* IOCTL commands on /dev/vc-sm-cma */
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enum vc_sm_cma_cmd_e {
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VC_SM_CMA_CMD_ALLOC = 0x5A, /* Start at 0x5A arbitrarily */
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VC_SM_CMA_CMD_IMPORT_DMABUF,
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VC_SM_CMA_CMD_CLEAN_INVALID2,
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VC_SM_CMA_CMD_LAST /* Do not delete */
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};
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/* Cache type supported, conveniently matches the user space definition in
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* user-vcsm.h.
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*/
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enum vc_sm_cma_cache_e {
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VC_SM_CMA_CACHE_NONE,
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VC_SM_CMA_CACHE_HOST,
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VC_SM_CMA_CACHE_VC,
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VC_SM_CMA_CACHE_BOTH,
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};
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/* IOCTL Data structures */
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struct vc_sm_cma_ioctl_alloc {
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/* user -> kernel */
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__u32 size;
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__u32 num;
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__u32 cached; /* enum vc_sm_cma_cache_e */
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__u32 pad;
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__u8 name[VC_SM_CMA_RESOURCE_NAME];
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/* kernel -> user */
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__s32 handle;
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__u32 vc_handle;
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__u64 dma_addr;
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};
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struct vc_sm_cma_ioctl_import_dmabuf {
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/* user -> kernel */
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__s32 dmabuf_fd;
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__u32 cached; /* enum vc_sm_cma_cache_e */
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__u8 name[VC_SM_CMA_RESOURCE_NAME];
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/* kernel -> user */
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__s32 handle;
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__u32 vc_handle;
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__u32 size;
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__u32 pad;
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__u64 dma_addr;
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};
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/*
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* Cache functions to be set to struct vc_sm_cma_ioctl_clean_invalid2
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* invalidate_mode.
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*/
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#define VC_SM_CACHE_OP_NOP 0x00
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#define VC_SM_CACHE_OP_INV 0x01
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#define VC_SM_CACHE_OP_CLEAN 0x02
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#define VC_SM_CACHE_OP_FLUSH 0x03
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struct vc_sm_cma_ioctl_clean_invalid2 {
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__u32 op_count;
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__u32 pad;
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struct vc_sm_cma_ioctl_clean_invalid_block {
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__u32 invalidate_mode;
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__u32 block_count;
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void * /*__user */start_address;
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__u32 block_size;
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__u32 inter_block_stride;
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} s[0];
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};
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/* IOCTL numbers */
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#define VC_SM_CMA_IOCTL_MEM_ALLOC\
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_IOR(VC_SM_CMA_MAGIC_TYPE, VC_SM_CMA_CMD_ALLOC,\
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struct vc_sm_cma_ioctl_alloc)
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#define VC_SM_CMA_IOCTL_MEM_IMPORT_DMABUF\
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_IOR(VC_SM_CMA_MAGIC_TYPE, VC_SM_CMA_CMD_IMPORT_DMABUF,\
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struct vc_sm_cma_ioctl_import_dmabuf)
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#define VC_SM_CMA_IOCTL_MEM_CLEAN_INVALID2\
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_IOR(VC_SM_CMA_MAGIC_TYPE, VC_SM_CMA_CMD_CLEAN_INVALID2,\
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struct vc_sm_cma_ioctl_clean_invalid2)
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#endif /* __VC_SM_CMA_IOCTL_H */
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