63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
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#ifndef DC_DSC_H_
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#define DC_DSC_H_
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/*
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* Copyright 2019 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Author: AMD
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*/
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/* put it here temporarily until linux has the new addresses official defined */
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/* DP Extended DSC Capabilities */
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#define DP_DSC_BRANCH_OVERALL_THROUGHPUT_0 0x0a0 /* DP 1.4a SCR */
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#define DP_DSC_BRANCH_OVERALL_THROUGHPUT_1 0x0a1
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#define DP_DSC_BRANCH_MAX_LINE_WIDTH 0x0a2
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struct dc_dsc_bw_range {
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uint32_t min_kbps; /* Bandwidth if min_target_bpp_x16 is used */
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uint32_t min_target_bpp_x16;
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uint32_t max_kbps; /* Bandwidth if max_target_bpp_x16 is used */
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uint32_t max_target_bpp_x16;
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uint32_t stream_kbps; /* Uncompressed stream bandwidth */
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};
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bool dc_dsc_parse_dsc_dpcd(const uint8_t *dpcd_dsc_basic_data,
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const uint8_t *dpcd_dsc_ext_data,
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struct dsc_dec_dpcd_caps *dsc_sink_caps);
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bool dc_dsc_compute_bandwidth_range(
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const struct dc *dc,
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const uint32_t min_kbps,
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const uint32_t max_kbps,
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const struct dsc_dec_dpcd_caps *dsc_sink_caps,
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const struct dc_crtc_timing *timing,
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struct dc_dsc_bw_range *range);
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bool dc_dsc_compute_config(
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const struct dc *dc,
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const struct dsc_dec_dpcd_caps *dsc_sink_caps,
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uint32_t target_bandwidth_kbps,
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const struct dc_crtc_timing *timing,
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struct dc_dsc_config *dsc_cfg);
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#endif
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#endif
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