diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_dp_types.h')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_dp_types.h | 467 |
1 files changed, 467 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h new file mode 100644 index 000000000000..77e2de69cca3 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h @@ -0,0 +1,467 @@ +/* + * Copyright 2016 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ + +#ifndef DC_DP_TYPES_H +#define DC_DP_TYPES_H + +enum dc_lane_count { + LANE_COUNT_UNKNOWN = 0, + LANE_COUNT_ONE = 1, + LANE_COUNT_TWO = 2, + LANE_COUNT_FOUR = 4, + LANE_COUNT_EIGHT = 8, + LANE_COUNT_DP_MAX = LANE_COUNT_FOUR +}; + +/* This is actually a reference clock (27MHz) multiplier + * 162MBps bandwidth for 1.62GHz like rate, + * 270MBps for 2.70GHz, + * 324MBps for 3.24Ghz, + * 540MBps for 5.40GHz + * 810MBps for 8.10GHz + */ +enum dc_link_rate { + LINK_RATE_UNKNOWN = 0, + LINK_RATE_LOW = 0x06, + LINK_RATE_HIGH = 0x0A, + LINK_RATE_RBR2 = 0x0C, + LINK_RATE_HIGH2 = 0x14, + LINK_RATE_HIGH3 = 0x1E +}; + +enum dc_link_spread { + LINK_SPREAD_DISABLED = 0x00, + /* 0.5 % downspread 30 kHz */ + LINK_SPREAD_05_DOWNSPREAD_30KHZ = 0x10, + /* 0.5 % downspread 33 kHz */ + LINK_SPREAD_05_DOWNSPREAD_33KHZ = 0x11 +}; + +enum dc_voltage_swing { + VOLTAGE_SWING_LEVEL0 = 0, /* direct HW translation! */ + VOLTAGE_SWING_LEVEL1, + VOLTAGE_SWING_LEVEL2, + VOLTAGE_SWING_LEVEL3, + VOLTAGE_SWING_MAX_LEVEL = VOLTAGE_SWING_LEVEL3 +}; + +enum dc_pre_emphasis { + PRE_EMPHASIS_DISABLED = 0, /* direct HW translation! */ + PRE_EMPHASIS_LEVEL1, + PRE_EMPHASIS_LEVEL2, + PRE_EMPHASIS_LEVEL3, + PRE_EMPHASIS_MAX_LEVEL = PRE_EMPHASIS_LEVEL3 +}; +/* Post Cursor 2 is optional for transmitter + * and it applies only to the main link operating at HBR2 + */ +enum dc_post_cursor2 { + POST_CURSOR2_DISABLED = 0, /* direct HW translation! */ + POST_CURSOR2_LEVEL1, + POST_CURSOR2_LEVEL2, + POST_CURSOR2_LEVEL3, + POST_CURSOR2_MAX_LEVEL = POST_CURSOR2_LEVEL3, +}; + +struct dc_link_settings { + enum dc_lane_count lane_count; + enum dc_link_rate link_rate; + enum dc_link_spread link_spread; +}; + +struct dc_lane_settings { + enum dc_voltage_swing VOLTAGE_SWING; + enum dc_pre_emphasis PRE_EMPHASIS; + enum dc_post_cursor2 POST_CURSOR2; +}; + +struct dc_link_training_settings { + struct dc_link_settings link; + struct dc_lane_settings lane_settings[LANE_COUNT_DP_MAX]; +}; + + +union dpcd_rev { + struct { + uint8_t MINOR:4; + uint8_t MAJOR:4; + } bits; + uint8_t raw; +}; + +union max_lane_count { + struct { + uint8_t MAX_LANE_COUNT:5; + uint8_t POST_LT_ADJ_REQ_SUPPORTED:1; + uint8_t TPS3_SUPPORTED:1; + uint8_t ENHANCED_FRAME_CAP:1; + } bits; + uint8_t raw; +}; + +union max_down_spread { + struct { + uint8_t MAX_DOWN_SPREAD:1; + uint8_t RESERVED:5; + uint8_t NO_AUX_HANDSHAKE_LINK_TRAINING:1; + uint8_t TPS4_SUPPORTED:1; + } bits; + uint8_t raw; +}; + +union mstm_cap { + struct { + uint8_t MST_CAP:1; + uint8_t RESERVED:7; + } bits; + uint8_t raw; +}; + +union lane_count_set { + struct { + uint8_t LANE_COUNT_SET:5; + uint8_t POST_LT_ADJ_REQ_GRANTED:1; + uint8_t RESERVED:1; + uint8_t ENHANCED_FRAMING:1; + } bits; + uint8_t raw; +}; + +union lane_status { + struct { + uint8_t CR_DONE_0:1; + uint8_t CHANNEL_EQ_DONE_0:1; + uint8_t SYMBOL_LOCKED_0:1; + uint8_t RESERVED0:1; + uint8_t CR_DONE_1:1; + uint8_t CHANNEL_EQ_DONE_1:1; + uint8_t SYMBOL_LOCKED_1:1; + uint8_t RESERVED_1:1; + } bits; + uint8_t raw; +}; + +union device_service_irq { + struct { + uint8_t REMOTE_CONTROL_CMD_PENDING:1; + uint8_t AUTOMATED_TEST:1; + uint8_t CP_IRQ:1; + uint8_t MCCS_IRQ:1; + uint8_t DOWN_REP_MSG_RDY:1; + uint8_t UP_REQ_MSG_RDY:1; + uint8_t SINK_SPECIFIC:1; + uint8_t reserved:1; + } bits; + uint8_t raw; +}; + +union sink_count { + struct { + uint8_t SINK_COUNT:6; + uint8_t CPREADY:1; + uint8_t RESERVED:1; + } bits; + uint8_t raw; +}; + +union lane_align_status_updated { + struct { + uint8_t INTERLANE_ALIGN_DONE:1; + uint8_t POST_LT_ADJ_REQ_IN_PROGRESS:1; + uint8_t RESERVED:4; + uint8_t DOWNSTREAM_PORT_STATUS_CHANGED:1; + uint8_t LINK_STATUS_UPDATED:1; + } bits; + uint8_t raw; +}; + +union lane_adjust { + struct { + uint8_t VOLTAGE_SWING_LANE:2; + uint8_t PRE_EMPHASIS_LANE:2; + uint8_t RESERVED:4; + } bits; + uint8_t raw; +}; + +union dpcd_training_pattern { + struct { + uint8_t TRAINING_PATTERN_SET:4; + uint8_t RECOVERED_CLOCK_OUT_EN:1; + uint8_t SCRAMBLING_DISABLE:1; + uint8_t SYMBOL_ERROR_COUNT_SEL:2; + } v1_4; + struct { + uint8_t TRAINING_PATTERN_SET:2; + uint8_t LINK_QUAL_PATTERN_SET:2; + uint8_t RESERVED:4; + } v1_3; + uint8_t raw; +}; + +/* Training Lane is used to configure downstream DP device's voltage swing +and pre-emphasis levels*/ +/* The DPCD addresses are from 0x103 to 0x106*/ +union dpcd_training_lane { + struct { + uint8_t VOLTAGE_SWING_SET:2; + uint8_t MAX_SWING_REACHED:1; + uint8_t PRE_EMPHASIS_SET:2; + uint8_t MAX_PRE_EMPHASIS_REACHED:1; + uint8_t RESERVED:2; + } bits; + uint8_t raw; +}; + +/* TMDS-converter related */ +union dwnstream_port_caps_byte0 { + struct { + uint8_t DWN_STRM_PORTX_TYPE:3; + uint8_t DWN_STRM_PORTX_HPD:1; + uint8_t RESERVERD:4; + } bits; + uint8_t raw; +}; + +/* these are the detailed types stored at DWN_STRM_PORTX_CAP (00080h)*/ +enum dpcd_downstream_port_detailed_type { + DOWN_STREAM_DETAILED_DP = 0, + DOWN_STREAM_DETAILED_VGA, + DOWN_STREAM_DETAILED_DVI, + DOWN_STREAM_DETAILED_HDMI, + DOWN_STREAM_DETAILED_NONDDC,/* has no EDID (TV,CV)*/ + DOWN_STREAM_DETAILED_DP_PLUS_PLUS +}; + +union dwnstream_port_caps_byte1 { + struct { + uint8_t MAX_BITS_PER_COLOR_COMPONENT:2; + uint8_t RESERVED:6; + } bits; + uint8_t raw; +}; + +union dp_downstream_port_present { + uint8_t byte; + struct { + uint8_t PORT_PRESENT:1; + uint8_t PORT_TYPE:2; + uint8_t FMT_CONVERSION:1; + uint8_t DETAILED_CAPS:1; + uint8_t RESERVED:3; + } fields; +}; + +union dwnstream_port_caps_byte3_dvi { + struct { + uint8_t RESERVED1:1; + uint8_t DUAL_LINK:1; + uint8_t HIGH_COLOR_DEPTH:1; + uint8_t RESERVED2:5; + } bits; + uint8_t raw; +}; + +union dwnstream_port_caps_byte3_hdmi { + struct { + uint8_t FRAME_SEQ_TO_FRAME_PACK:1; + uint8_t YCrCr422_PASS_THROUGH:1; + uint8_t YCrCr420_PASS_THROUGH:1; + uint8_t YCrCr422_CONVERSION:1; + uint8_t YCrCr420_CONVERSION:1; + uint8_t RESERVED:3; + } bits; + uint8_t raw; +}; + +/*4-byte structure for detailed capabilities of a down-stream port +(DP-to-TMDS converter).*/ + +union sink_status { + struct { + uint8_t RX_PORT0_STATUS:1; + uint8_t RX_PORT1_STATUS:1; + uint8_t RESERVED:6; + } bits; + uint8_t raw; +}; + +/*6-byte structure corresponding to 6 registers (200h-205h) +read during handling of HPD-IRQ*/ +union hpd_irq_data { + struct { + union sink_count sink_cnt;/* 200h */ + union device_service_irq device_service_irq;/* 201h */ + union lane_status lane01_status;/* 202h */ + union lane_status lane23_status;/* 203h */ + union lane_align_status_updated lane_status_updated;/* 204h */ + union sink_status sink_status; + } bytes; + uint8_t raw[6]; +}; + +union down_stream_port_count { + struct { + uint8_t DOWN_STR_PORT_COUNT:4; + uint8_t RESERVED:2; /*Bits 5:4 = RESERVED. Read all 0s.*/ + /*Bit 6 = MSA_TIMING_PAR_IGNORED + 0 = Sink device requires the MSA timing parameters + 1 = Sink device is capable of rendering incoming video + stream without MSA timing parameters*/ + uint8_t IGNORE_MSA_TIMING_PARAM:1; + /*Bit 7 = OUI Support + 0 = OUI not supported + 1 = OUI supported + (OUI and Device Identification mandatory for DP 1.2)*/ + uint8_t OUI_SUPPORT:1; + } bits; + uint8_t raw; +}; + +union down_spread_ctrl { + struct { + uint8_t RESERVED1:4;/* Bit 3:0 = RESERVED. Read all 0s*/ + /* Bits 4 = SPREAD_AMP. Spreading amplitude + 0 = Main link signal is not downspread + 1 = Main link signal is downspread <= 0.5% + with frequency in the range of 30kHz ~ 33kHz*/ + uint8_t SPREAD_AMP:1; + uint8_t RESERVED2:2;/*Bit 6:5 = RESERVED. Read all 0s*/ + /*Bit 7 = MSA_TIMING_PAR_IGNORE_EN + 0 = Source device will send valid data for the MSA Timing Params + 1 = Source device may send invalid data for these MSA Timing Params*/ + uint8_t IGNORE_MSA_TIMING_PARAM:1; + } bits; + uint8_t raw; +}; + +union dpcd_edp_config { + struct { + uint8_t PANEL_MODE_EDP:1; + uint8_t FRAMING_CHANGE_ENABLE:1; + uint8_t RESERVED:5; + uint8_t PANEL_SELF_TEST_ENABLE:1; + } bits; + uint8_t raw; +}; + +struct dp_device_vendor_id { + uint8_t ieee_oui[3];/*24-bit IEEE OUI*/ + uint8_t ieee_device_id[6];/*usually 6-byte ASCII name*/ +}; + +struct dp_sink_hw_fw_revision { + uint8_t ieee_hw_rev; + uint8_t ieee_fw_rev[2]; +}; + +/*DPCD register of DP receiver capability field bits-*/ +union edp_configuration_cap { + struct { + uint8_t ALT_SCRAMBLER_RESET:1; + uint8_t FRAMING_CHANGE:1; + uint8_t RESERVED:1; + uint8_t DPCD_DISPLAY_CONTROL_CAPABLE:1; + uint8_t RESERVED2:4; + } bits; + uint8_t raw; +}; + +union training_aux_rd_interval { + struct { + uint8_t TRAINIG_AUX_RD_INTERVAL:7; + uint8_t EXT_RECIEVER_CAP_FIELD_PRESENT:1; + } bits; + uint8_t raw; +}; + +/* Automated test structures */ +union test_request { + struct { + uint8_t LINK_TRAINING :1; + uint8_t LINK_TEST_PATTRN :1; + uint8_t EDID_REAT :1; + uint8_t PHY_TEST_PATTERN :1; + uint8_t AUDIO_TEST_PATTERN :1; + uint8_t RESERVED :1; + uint8_t TEST_STEREO_3D :1; + } bits; + uint8_t raw; +}; + +union test_response { + struct { + uint8_t ACK :1; + uint8_t NO_ACK :1; + uint8_t RESERVED :6; + } bits; + uint8_t raw; +}; + +union phy_test_pattern { + struct { + /* DpcdPhyTestPatterns. This field is 2 bits for DP1.1 + * and 3 bits for DP1.2. + */ + uint8_t PATTERN :3; + /* BY speci, bit7:2 is 0 for DP1.1. */ + uint8_t RESERVED :5; + } bits; + uint8_t raw; +}; + +/* States of Compliance Test Specification (CTS DP1.2). */ +union compliance_test_state { + struct { + unsigned char STEREO_3D_RUNNING : 1; + unsigned char RESERVED : 7; + } bits; + unsigned char raw; +}; + +union link_test_pattern { + struct { + /* dpcd_link_test_patterns */ + unsigned char PATTERN :2; + unsigned char RESERVED:6; + } bits; + unsigned char raw; +}; + +union test_misc { + struct dpcd_test_misc_bits { + unsigned char SYNC_CLOCK :1; + /* dpcd_test_color_format */ + unsigned char CLR_FORMAT :2; + /* dpcd_test_dyn_range */ + unsigned char DYN_RANGE :1; + unsigned char YCBCR :1; + /* dpcd_test_bit_depth */ + unsigned char BPC :3; + } bits; + unsigned char raw; +}; + +#endif /* DC_DP_TYPES_H */ |