1 /* 2 * Copyright 2017 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: AMD 23 * 24 */ 25 #ifndef __DAL_DSC_H__ 26 #define __DAL_DSC_H__ 27 28 #include "dc_dsc.h" 29 #include "dc_hw_types.h" 30 #include "dc_types.h" 31 /* do not include any other headers 32 * or else it might break Edid Utility functionality. 33 */ 34 35 36 /* Input parameters for configuring DSC from the outside of DSC */ 37 struct dsc_config { 38 uint32_t pic_width; 39 uint32_t pic_height; 40 enum dc_pixel_encoding pixel_encoding; 41 enum dc_color_depth color_depth; /* Bits per component */ 42 bool is_odm; 43 struct dc_dsc_config dc_dsc_cfg; 44 uint32_t dsc_padding; 45 }; 46 47 48 /* Output parameters for configuring DSC-related part of OPTC */ 49 struct dsc_optc_config { 50 uint32_t slice_width; /* Slice width in pixels */ 51 uint32_t bytes_per_pixel; /* Bytes per pixel in u3.28 format */ 52 bool is_pixel_format_444; /* 'true' if pixel format is 'RGB 444' or 'Simple YCbCr 4:2:2' (4:2:2 upsampled to 4:4:4)' */ 53 }; 54 55 56 struct dcn_dsc_state { 57 uint32_t dsc_clock_en; 58 uint32_t dsc_slice_width; 59 uint32_t dsc_bits_per_pixel; 60 uint32_t dsc_slice_height; 61 uint32_t dsc_pic_width; 62 uint32_t dsc_pic_height; 63 uint32_t dsc_slice_bpg_offset; 64 uint32_t dsc_chunk_size; 65 uint32_t dsc_fw_en; 66 uint32_t dsc_opp_source; 67 uint32_t dsc_block_pred_enable; 68 uint32_t dsc_line_buf_depth; 69 uint32_t dsc_version_minor; 70 uint32_t dsc_rc_buffer_size; 71 uint32_t dsc_simple_422; 72 }; 73 74 struct dcn_dsc_reg_state { 75 uint32_t dsc_top_control; 76 uint32_t dscc_interrupt_control_status; 77 }; 78 79 /* DSC encoder capabilities 80 * They differ from the DPCD DSC caps because they are based on AMD DSC encoder caps. 81 */ 82 union dsc_enc_slice_caps { 83 struct { 84 uint8_t NUM_SLICES_1 : 1; 85 uint8_t NUM_SLICES_2 : 1; 86 uint8_t NUM_SLICES_3 : 1; /* This one is not per DSC spec, but our encoder supports it */ 87 uint8_t NUM_SLICES_4 : 1; 88 uint8_t NUM_SLICES_8 : 1; 89 uint8_t NUM_SLICES_12 : 1; 90 uint8_t NUM_SLICES_16 : 1; 91 } bits; 92 uint8_t raw; 93 }; 94 95 struct dsc_enc_caps { 96 uint8_t dsc_version; 97 union dsc_enc_slice_caps slice_caps; 98 int32_t lb_bit_depth; 99 bool is_block_pred_supported; 100 union dsc_color_formats color_formats; 101 union dsc_color_depth color_depth; 102 int32_t max_total_throughput_mps; /* Maximum total throughput with all the slices combined */ 103 int32_t max_slice_width; 104 uint32_t bpp_increment_div; /* bpp increment divisor, e.g. if 16, it's 1/16th of a bit */ 105 uint32_t edp_sink_max_bits_per_pixel; 106 bool is_dp; 107 }; 108 109 struct dsc_funcs { 110 void (*dsc_get_enc_caps)(struct dsc_enc_caps *dsc_enc_caps, int pixel_clock_100Hz); 111 void (*dsc_read_state)(struct display_stream_compressor *dsc, struct dcn_dsc_state *s); 112 void (*dsc_read_reg_state)(struct display_stream_compressor *dsc, struct dcn_dsc_reg_state *dccg_reg_state); 113 bool (*dsc_validate_stream)(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg); 114 void (*dsc_set_config)(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg, 115 struct dsc_optc_config *dsc_optc_cfg); 116 bool (*dsc_get_packed_pps)(struct display_stream_compressor *dsc, const struct dsc_config *dsc_cfg, 117 uint8_t *dsc_packed_pps); 118 void (*dsc_enable)(struct display_stream_compressor *dsc, int opp_pipe); 119 void (*dsc_disable)(struct display_stream_compressor *dsc); 120 void (*dsc_disconnect)(struct display_stream_compressor *dsc); 121 void (*dsc_wait_disconnect_pending_clear)(struct display_stream_compressor *dsc); 122 void (*dsc_get_single_enc_caps)(struct dsc_enc_caps *dsc_enc_caps, unsigned int max_dscclk_khz); 123 void (*set_fgcg)(struct display_stream_compressor *dsc, bool enable); 124 }; 125 126 #endif 127