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/*
* dpcd_structs.h
*
* Created on: Oct 31, 2018
* Author: jlei
*/
#ifndef DAL_INCLUDE_DPCD_STRUCTS_H_
#define DAL_INCLUDE_DPCD_STRUCTS_H_
struct dpcd_receive_port0_cap01 {
union {
struct {
// Byte 0
unsigned char reserved0 :1; // Bit0
unsigned char local_edid_present :1;
unsigned char associated_to_preceding_port :1;
unsigned char hblank_expansion_capable :1;
unsigned char buffer_size_unit :1; // Bit4
unsigned char buffer_size_per_port :1;
unsigned char reserved1 :2;
// Byte 1
unsigned char buffer_size :8;
} fields;
unsigned char raw[2];
};
};
#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
struct dpcd_dsc_basic_capabilities {
union {
struct {
// Byte 0
struct {
unsigned char dsc_support :1; // Bit0
unsigned char dsc_passthrough_support :1; // Bit1
unsigned char reserved :6;
} dsc_support;
// Byte 1
struct {
unsigned char dsc_version_major :4;
unsigned char dsc_version_minor :4;
} dsc_algorithm_revision;
// Byte 2
struct {
unsigned char rc_block_buffer_size :2;
unsigned char reserved :6;
} dsc_rc_buffer_block_size;
// Byte 3
unsigned char dsc_rc_buffer_size;
// Byte 4
struct {
unsigned char one_slice_per_dp_dsc_sink_device :1; // Bit0
unsigned char two_slices_per_dp_dsc_sink_device :1;
unsigned char reserved :1;
unsigned char four_slices_per_dp_dsc_sink_device :1;
unsigned char six_slices_per_dp_dsc_sink_device :1; // Bit 4
unsigned char eight_slices_per_dp_dsc_sink_device :1;
unsigned char ten_slices_per_dp_dsc_sink_device :1;
unsigned char twelve_slices_per_dp_dsc_sink_device :1;
} dsc_slice_capabilities_1;
// Byte 5
struct {
unsigned char line_buffer_bit_depth :4;
unsigned char reserved :4;
} dsc_line_buffer_bit_depth;
// Byte 6
struct {
unsigned char block_prediction_support :1;
unsigned char reserved :7;
} dsc_block_prediction_support;
// Byte 7,8
struct {
unsigned char maximum_bits_per_pixel_supported_by_the_decompressor_low :7;
unsigned char maximum_bits_per_pixel_supported_by_the_decompressor_high :7;
} maximum_bits_per_pixel_supported_by_the_decompressor;
// Byte 9
struct {
unsigned char rgb_support :1; // Bit0
unsigned char y_cb_cr_444_support :1;
unsigned char y_cb_cr_simple_422_support :1;
unsigned char y_cb_cr_native_422_support :1;
unsigned char y_cb_cr_native_420_support :1; // Bit 4
unsigned char reserved :3;
} dsc_decoder_color_format_capabilities;
// Byte 10
struct {
unsigned char reserved0 :1; // Bit0
unsigned char eight_bits_per_color_support :1;
unsigned char ten_bits_per_color_support :1;
unsigned char twelve_bits_per_color_support :1;
unsigned char reserved1 :4; // Bit 4
} dsc_decoder_color_depth_capabilities;
// Byte 11
struct {
unsigned char throughput_mode_0 :4;
unsigned char throughput_mode_1 :4;
} peak_dsc_throughput_dsc_sink;
// Byte 12
unsigned char dsc_maximum_slice_width;
// Byte 13
struct {
unsigned char sixteen_slices_per_dsc_sink_device :1;
unsigned char twenty_slices_per_dsc_sink_device :1;
unsigned char twentyfour_slices_per_dsc_sink_device :1;
unsigned char reserved :5;
} dsc_slice_capabilities_2;
// Byte 14
unsigned char reserved;
// Byte 15
struct {
unsigned char increment_of_bits_per_pixel_supported :3;
unsigned char reserved :5;
} bits_per_pixel_increment;
} fields;
unsigned char raw[16];
};
};
struct dpcd_dsc_ext_capabilities {
union {
struct {
unsigned char branch_overall_throughput_0; // Byte 0
unsigned char branch_overall_throughput_1; // Byte 1
unsigned char branch_max_line_width; // Byte 2
} fields;
unsigned char raw[3];
};
};
struct dpcd_dsc_capabilities {
struct dpcd_dsc_basic_capabilities dsc_basic_caps;
struct dpcd_dsc_ext_capabilities dsc_ext_caps;
};
struct dpcd_fec_capability {
union {
struct {
// Byte 0
unsigned char fec_capable :1; // Bit0
unsigned char uncorrected_block_error_count_capable :1;
unsigned char corrected_block_error_count_capable :1;
unsigned char bit_error_count_capable :1;
unsigned char reserved :4; // Bit4
} fields;
unsigned char raw[1];
};
};
#endif
#endif /* DAL_INCLUDE_DPCD_STRUCTS_H_ */
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