45864e49a0
SKL and KBL rely on a dedicated HDAudio DMA stream for code loading and authentication. The implementation of this specific mechanism for SKL-based platforms re-uses HDAudio DMA (streaming) functions found in HDA library to avoid duplication of functionality. Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com> Link: https://lore.kernel.org/r/20220311153544.136854-16-cezary.rojewski@intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
29 lines
899 B
C
29 lines
899 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
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*
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* Author: Cezary Rojewski <cezary.rojewski@intel.com>
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*/
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#ifndef __SOUND_SOC_INTEL_AVS_CLDMA_H
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#define __SOUND_SOC_INTEL_AVS_CLDMA_H
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#define AVS_CL_DEFAULT_BUFFER_SIZE (32 * PAGE_SIZE)
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struct hda_cldma;
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extern struct hda_cldma code_loader;
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void hda_cldma_fill(struct hda_cldma *cl);
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void hda_cldma_transfer(struct hda_cldma *cl, unsigned long start_delay);
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int hda_cldma_start(struct hda_cldma *cl);
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int hda_cldma_stop(struct hda_cldma *cl);
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int hda_cldma_reset(struct hda_cldma *cl);
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void hda_cldma_set_data(struct hda_cldma *cl, void *data, unsigned int size);
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void hda_cldma_setup(struct hda_cldma *cl);
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int hda_cldma_init(struct hda_cldma *cl, struct hdac_bus *bus, void __iomem *dsp_ba,
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unsigned int buffer_size);
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void hda_cldma_free(struct hda_cldma *cl);
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#endif
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