00184485c7
Implements driver to interface with ubwcp hw block Change-Id: I092e45acfedd01978c383bc596e48da23f3e873e Signed-off-by: Amol Jadi <quic_ajadi@quicinc.com> Signed-off-by: Liam Mark <quic_lmark@quicinc.com>
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef __UBWCP_H_
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#define __UBWCP_H_
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#include <linux/types.h>
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#include <linux/dma-buf.h>
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#include "include/uapi/ubwcp_ioctl.h"
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typedef int (*configure_mmap)(struct dma_buf *dmabuf, bool linear, phys_addr_t ula_pa_addr,
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size_t ula_pa_size);
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/**
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* Get UBWCP hardware version
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*
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* @param ver : ptr to ver struct where hw version will be
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* copied
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*
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* @return int : 0 on success, otherwise error code
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*/
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int ubwcp_get_hw_version(struct ubwcp_ioctl_hw_version *ver);
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/**
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* Configures ubwcp buffer with the provided buffer image
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* attributes. This call must be done at least once before
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* ubwcp_lock(). Attributes can be configured multiple times,
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* but only during unlocked state.
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*
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* @param dmabuf : ptr to the dma buf
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* @param attr : buffer attributes to set
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*
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* @return int : 0 on success, otherwise error code
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*/
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int ubwcp_set_buf_attrs(struct dma_buf *dmabuf, struct ubwcp_buffer_attrs *attr);
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/**
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* Get the currently configured attributes for the buffer
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*
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* @param dmabuf : ptr to the dma buf
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* @param attr : pointer to location where image attributes
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* for this buffer will be copied to.
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*
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* @return int : 0 on success, otherwise error code
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*/
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int ubwcp_get_buf_attrs(struct dma_buf *dmabuf, struct ubwcp_buffer_attrs *attr);
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/**
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* Set permanent range translation for the buffer. This reserves
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* ubwcp address translation resources for the buffer until free
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* is called. This may speed up lock()/unlock() calls as they
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* don't need to configure address translations for the buffer.
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*
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* @param dmabuf : ptr to the dma buf
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* @param enable : true == enable, false == disable
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*
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* @return int : 0 on success, otherwise error code
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*/
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int ubwcp_set_perm_range_translation(struct dma_buf *dmabuf, bool enable);
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#endif /* __UBWCP_H_ */
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