diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c | 1362 |
1 files changed, 1362 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c new file mode 100644 index 0000000000000..21fa40ac0786b --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_link_encoder.c @@ -0,0 +1,1362 @@ +/* + * Copyright 2012-15 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 + * + */ + +#include "reg_helper.h" + +#include "core_types.h" +#include "link_encoder.h" +#include "dcn10_link_encoder.h" +#include "stream_encoder.h" +#include "i2caux_interface.h" +#include "dc_bios_types.h" + +#include "gpio_service_interface.h" + +#define CTX \ + enc10->base.ctx +#define DC_LOGGER \ + enc10->base.ctx->logger + +#define REG(reg)\ + (enc10->link_regs->reg) + +#undef FN +#define FN(reg_name, field_name) \ + enc10->link_shift->field_name, enc10->link_mask->field_name + + +/* + * @brief + * Trigger Source Select + * ASIC-dependent, actual values for register programming + */ +#define DCN10_DIG_FE_SOURCE_SELECT_INVALID 0x0 +#define DCN10_DIG_FE_SOURCE_SELECT_DIGA 0x1 +#define DCN10_DIG_FE_SOURCE_SELECT_DIGB 0x2 +#define DCN10_DIG_FE_SOURCE_SELECT_DIGC 0x4 +#define DCN10_DIG_FE_SOURCE_SELECT_DIGD 0x08 +#define DCN10_DIG_FE_SOURCE_SELECT_DIGE 0x10 +#define DCN10_DIG_FE_SOURCE_SELECT_DIGF 0x20 +#define DCN10_DIG_FE_SOURCE_SELECT_DIGG 0x40 + +enum { + DP_MST_UPDATE_MAX_RETRY = 50 +}; + + + +static void aux_initialize(struct dcn10_link_encoder *enc10); + + +static const struct link_encoder_funcs dcn10_lnk_enc_funcs = { + .validate_output_with_stream = + dcn10_link_encoder_validate_output_with_stream, + .hw_init = dcn10_link_encoder_hw_init, + .setup = dcn10_link_encoder_setup, + .enable_tmds_output = dcn10_link_encoder_enable_tmds_output, + .enable_dp_output = dcn10_link_encoder_enable_dp_output, + .enable_dp_mst_output = dcn10_link_encoder_enable_dp_mst_output, + .disable_output = dcn10_link_encoder_disable_output, + .dp_set_lane_settings = dcn10_link_encoder_dp_set_lane_settings, + .dp_set_phy_pattern = dcn10_link_encoder_dp_set_phy_pattern, + .update_mst_stream_allocation_table = + dcn10_link_encoder_update_mst_stream_allocation_table, + .psr_program_dp_dphy_fast_training = + dcn10_psr_program_dp_dphy_fast_training, + .psr_program_secondary_packet = dcn10_psr_program_secondary_packet, + .connect_dig_be_to_fe = dcn10_link_encoder_connect_dig_be_to_fe, + .enable_hpd = dcn10_link_encoder_enable_hpd, + .disable_hpd = dcn10_link_encoder_disable_hpd, + .is_dig_enabled = dcn10_is_dig_enabled, + .destroy = dcn10_link_encoder_destroy +}; + +static enum bp_result link_transmitter_control( + struct dcn10_link_encoder *enc10, + struct bp_transmitter_control *cntl) +{ + enum bp_result result; + struct dc_bios *bp = enc10->base.ctx->dc_bios; + + result = bp->funcs->transmitter_control(bp, cntl); + + return result; +} + +static void enable_phy_bypass_mode( + struct dcn10_link_encoder *enc10, + bool enable) +{ + /* This register resides in DP back end block; + * transmitter is used for the offset + */ + REG_UPDATE(DP_DPHY_CNTL, DPHY_BYPASS, enable); + +} + +static void disable_prbs_symbols( + struct dcn10_link_encoder *enc10, + bool disable) +{ + /* This register resides in DP back end block; + * transmitter is used for the offset + */ + REG_UPDATE_4(DP_DPHY_CNTL, + DPHY_ATEST_SEL_LANE0, disable, + DPHY_ATEST_SEL_LANE1, disable, + DPHY_ATEST_SEL_LANE2, disable, + DPHY_ATEST_SEL_LANE3, disable); +} + +static void disable_prbs_mode( + struct dcn10_link_encoder *enc10) +{ + REG_UPDATE(DP_DPHY_PRBS_CNTL, DPHY_PRBS_EN, 0); +} + +static void program_pattern_symbols( + struct dcn10_link_encoder *enc10, + uint16_t pattern_symbols[8]) +{ + /* This register resides in DP back end block; + * transmitter is used for the offset + */ + REG_SET_3(DP_DPHY_SYM0, 0, + DPHY_SYM1, pattern_symbols[0], + DPHY_SYM2, pattern_symbols[1], + DPHY_SYM3, pattern_symbols[2]); + + /* This register resides in DP back end block; + * transmitter is used for the offset + */ + REG_SET_3(DP_DPHY_SYM1, 0, + DPHY_SYM4, pattern_symbols[3], + DPHY_SYM5, pattern_symbols[4], + DPHY_SYM6, pattern_symbols[5]); + + /* This register resides in DP back end block; + * transmitter is used for the offset + */ + REG_SET_2(DP_DPHY_SYM2, 0, + DPHY_SYM7, pattern_symbols[6], + DPHY_SYM8, pattern_symbols[7]); +} + +static void set_dp_phy_pattern_d102( + struct dcn10_link_encoder *enc10) +{ + /* Disable PHY Bypass mode to setup the test pattern */ + enable_phy_bypass_mode(enc10, false); + + /* For 10-bit PRBS or debug symbols + * please use the following sequence: + * + * Enable debug symbols on the lanes + */ + disable_prbs_symbols(enc10, true); + + /* Disable PRBS mode */ + disable_prbs_mode(enc10); + + /* Program debug symbols to be output */ + { + uint16_t pattern_symbols[8] = { + 0x2AA, 0x2AA, 0x2AA, 0x2AA, + 0x2AA, 0x2AA, 0x2AA, 0x2AA + }; + + program_pattern_symbols(enc10, pattern_symbols); + } + + /* Enable phy bypass mode to enable the test pattern */ + + enable_phy_bypass_mode(enc10, true); +} + +static void set_link_training_complete( + struct dcn10_link_encoder *enc10, + bool complete) +{ + /* This register resides in DP back end block; + * transmitter is used for the offset + */ + REG_UPDATE(DP_LINK_CNTL, DP_LINK_TRAINING_COMPLETE, complete); + +} + +void dcn10_link_encoder_set_dp_phy_pattern_training_pattern( + struct link_encoder *enc, + uint32_t index) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + /* Write Training Pattern */ + + REG_WRITE(DP_DPHY_TRAINING_PATTERN_SEL, index); + + /* Set HW Register Training Complete to false */ + + set_link_training_complete(enc10, false); + + /* Disable PHY Bypass mode to output Training Pattern */ + + enable_phy_bypass_mode(enc10, false); + + /* Disable PRBS mode */ + disable_prbs_mode(enc10); +} + +static void setup_panel_mode( + struct dcn10_link_encoder *enc10, + enum dp_panel_mode panel_mode) +{ + uint32_t value; + + ASSERT(REG(DP_DPHY_INTERNAL_CTRL)); + value = REG_READ(DP_DPHY_INTERNAL_CTRL); + + switch (panel_mode) { + case DP_PANEL_MODE_EDP: + value = 0x1; + break; + case DP_PANEL_MODE_SPECIAL: + value = 0x11; + break; + default: + value = 0x0; + break; + } + + REG_WRITE(DP_DPHY_INTERNAL_CTRL, value); +} + +static void set_dp_phy_pattern_symbol_error( + struct dcn10_link_encoder *enc10) +{ + /* Disable PHY Bypass mode to setup the test pattern */ + enable_phy_bypass_mode(enc10, false); + + /* program correct panel mode*/ + setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT); + + /* A PRBS23 pattern is used for most DP electrical measurements. */ + + /* Enable PRBS symbols on the lanes */ + disable_prbs_symbols(enc10, false); + + /* For PRBS23 Set bit DPHY_PRBS_SEL=1 and Set bit DPHY_PRBS_EN=1 */ + REG_UPDATE_2(DP_DPHY_PRBS_CNTL, + DPHY_PRBS_SEL, 1, + DPHY_PRBS_EN, 1); + + /* Enable phy bypass mode to enable the test pattern */ + enable_phy_bypass_mode(enc10, true); +} + +static void set_dp_phy_pattern_prbs7( + struct dcn10_link_encoder *enc10) +{ + /* Disable PHY Bypass mode to setup the test pattern */ + enable_phy_bypass_mode(enc10, false); + + /* A PRBS7 pattern is used for most DP electrical measurements. */ + + /* Enable PRBS symbols on the lanes */ + disable_prbs_symbols(enc10, false); + + /* For PRBS7 Set bit DPHY_PRBS_SEL=0 and Set bit DPHY_PRBS_EN=1 */ + REG_UPDATE_2(DP_DPHY_PRBS_CNTL, + DPHY_PRBS_SEL, 0, + DPHY_PRBS_EN, 1); + + /* Enable phy bypass mode to enable the test pattern */ + enable_phy_bypass_mode(enc10, true); +} + +static void set_dp_phy_pattern_80bit_custom( + struct dcn10_link_encoder *enc10, + const uint8_t *pattern) +{ + /* Disable PHY Bypass mode to setup the test pattern */ + enable_phy_bypass_mode(enc10, false); + + /* Enable debug symbols on the lanes */ + + disable_prbs_symbols(enc10, true); + + /* Enable PHY bypass mode to enable the test pattern */ + /* TODO is it really needed ? */ + + enable_phy_bypass_mode(enc10, true); + + /* Program 80 bit custom pattern */ + { + uint16_t pattern_symbols[8]; + + pattern_symbols[0] = + ((pattern[1] & 0x03) << 8) | pattern[0]; + pattern_symbols[1] = + ((pattern[2] & 0x0f) << 6) | ((pattern[1] >> 2) & 0x3f); + pattern_symbols[2] = + ((pattern[3] & 0x3f) << 4) | ((pattern[2] >> 4) & 0x0f); + pattern_symbols[3] = + (pattern[4] << 2) | ((pattern[3] >> 6) & 0x03); + pattern_symbols[4] = + ((pattern[6] & 0x03) << 8) | pattern[5]; + pattern_symbols[5] = + ((pattern[7] & 0x0f) << 6) | ((pattern[6] >> 2) & 0x3f); + pattern_symbols[6] = + ((pattern[8] & 0x3f) << 4) | ((pattern[7] >> 4) & 0x0f); + pattern_symbols[7] = + (pattern[9] << 2) | ((pattern[8] >> 6) & 0x03); + + program_pattern_symbols(enc10, pattern_symbols); + } + + /* Enable phy bypass mode to enable the test pattern */ + + enable_phy_bypass_mode(enc10, true); +} + +static void set_dp_phy_pattern_hbr2_compliance_cp2520_2( + struct dcn10_link_encoder *enc10, + unsigned int cp2520_pattern) +{ + + /* previously there is a register DP_HBR2_EYE_PATTERN + * that is enabled to get the pattern. + * But it does not work with the latest spec change, + * so we are programming the following registers manually. + * + * The following settings have been confirmed + * by Nick Chorney and Sandra Liu + */ + + /* Disable PHY Bypass mode to setup the test pattern */ + + enable_phy_bypass_mode(enc10, false); + + /* Setup DIG encoder in DP SST mode */ + enc10->base.funcs->setup(&enc10->base, SIGNAL_TYPE_DISPLAY_PORT); + + /* ensure normal panel mode. */ + setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT); + + /* no vbid after BS (SR) + * DP_LINK_FRAMING_CNTL changed history Sandra Liu + * 11000260 / 11000104 / 110000FC + */ + REG_UPDATE_3(DP_LINK_FRAMING_CNTL, + DP_IDLE_BS_INTERVAL, 0xFC, + DP_VBID_DISABLE, 1, + DP_VID_ENHANCED_FRAME_MODE, 1); + + /* swap every BS with SR */ + REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_BS_COUNT, 0); + + /* select cp2520 patterns */ + if (REG(DP_DPHY_HBR2_PATTERN_CONTROL)) + REG_UPDATE(DP_DPHY_HBR2_PATTERN_CONTROL, + DP_DPHY_HBR2_PATTERN_CONTROL, cp2520_pattern); + else + /* pre-DCE11 can only generate CP2520 pattern 2 */ + ASSERT(cp2520_pattern == 2); + + /* set link training complete */ + set_link_training_complete(enc10, true); + + /* disable video stream */ + REG_UPDATE(DP_VID_STREAM_CNTL, DP_VID_STREAM_ENABLE, 0); + + /* Disable PHY Bypass mode to setup the test pattern */ + enable_phy_bypass_mode(enc10, false); +} + +static void set_dp_phy_pattern_passthrough_mode( + struct dcn10_link_encoder *enc10, + enum dp_panel_mode panel_mode) +{ + /* program correct panel mode */ + setup_panel_mode(enc10, panel_mode); + + /* restore LINK_FRAMING_CNTL and DPHY_SCRAMBLER_BS_COUNT + * in case we were doing HBR2 compliance pattern before + */ + REG_UPDATE_3(DP_LINK_FRAMING_CNTL, + DP_IDLE_BS_INTERVAL, 0x2000, + DP_VBID_DISABLE, 0, + DP_VID_ENHANCED_FRAME_MODE, 1); + + REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_BS_COUNT, 0x1FF); + + /* set link training complete */ + set_link_training_complete(enc10, true); + + /* Disable PHY Bypass mode to setup the test pattern */ + enable_phy_bypass_mode(enc10, false); + + /* Disable PRBS mode */ + disable_prbs_mode(enc10); +} + +/* return value is bit-vector */ +static uint8_t get_frontend_source( + enum engine_id engine) +{ + switch (engine) { + case ENGINE_ID_DIGA: + return DCN10_DIG_FE_SOURCE_SELECT_DIGA; + case ENGINE_ID_DIGB: + return DCN10_DIG_FE_SOURCE_SELECT_DIGB; + case ENGINE_ID_DIGC: + return DCN10_DIG_FE_SOURCE_SELECT_DIGC; + case ENGINE_ID_DIGD: + return DCN10_DIG_FE_SOURCE_SELECT_DIGD; + case ENGINE_ID_DIGE: + return DCN10_DIG_FE_SOURCE_SELECT_DIGE; + case ENGINE_ID_DIGF: + return DCN10_DIG_FE_SOURCE_SELECT_DIGF; + case ENGINE_ID_DIGG: + return DCN10_DIG_FE_SOURCE_SELECT_DIGG; + default: + ASSERT_CRITICAL(false); + return DCN10_DIG_FE_SOURCE_SELECT_INVALID; + } +} + +static void configure_encoder( + struct dcn10_link_encoder *enc10, + const struct dc_link_settings *link_settings) +{ + /* set number of lanes */ + + REG_SET(DP_CONFIG, 0, + DP_UDI_LANES, link_settings->lane_count - LANE_COUNT_ONE); + + /* setup scrambler */ + REG_UPDATE(DP_DPHY_SCRAM_CNTL, DPHY_SCRAMBLER_ADVANCE, 1); +} + +void dcn10_psr_program_dp_dphy_fast_training(struct link_encoder *enc, + bool exit_link_training_required) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + + if (exit_link_training_required) + REG_UPDATE(DP_DPHY_FAST_TRAINING, + DPHY_RX_FAST_TRAINING_CAPABLE, 1); + else { + REG_UPDATE(DP_DPHY_FAST_TRAINING, + DPHY_RX_FAST_TRAINING_CAPABLE, 0); + /*In DCE 11, we are able to pre-program a Force SR register + * to be able to trigger SR symbol after 5 idle patterns + * transmitted. Upon PSR Exit, DMCU can trigger + * DPHY_LOAD_BS_COUNT_START = 1. Upon writing 1 to + * DPHY_LOAD_BS_COUNT_START and the internal counter + * reaches DPHY_LOAD_BS_COUNT, the next BS symbol will be + * replaced by SR symbol once. + */ + + REG_UPDATE(DP_DPHY_BS_SR_SWAP_CNTL, DPHY_LOAD_BS_COUNT, 0x5); + } +} + +void dcn10_psr_program_secondary_packet(struct link_encoder *enc, + unsigned int sdp_transmit_line_num_deadline) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + + REG_UPDATE_2(DP_SEC_CNTL1, + DP_SEC_GSP0_LINE_NUM, sdp_transmit_line_num_deadline, + DP_SEC_GSP0_PRIORITY, 1); +} + +bool dcn10_is_dig_enabled(struct link_encoder *enc) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + uint32_t value; + + REG_GET(DIG_BE_EN_CNTL, DIG_ENABLE, &value); + return value; +} + +static void link_encoder_disable(struct dcn10_link_encoder *enc10) +{ + /* reset training pattern */ + REG_SET(DP_DPHY_TRAINING_PATTERN_SEL, 0, + DPHY_TRAINING_PATTERN_SEL, 0); + + /* reset training complete */ + REG_UPDATE(DP_LINK_CNTL, DP_LINK_TRAINING_COMPLETE, 0); + + /* reset panel mode */ + setup_panel_mode(enc10, DP_PANEL_MODE_DEFAULT); +} + +static void hpd_initialize( + struct dcn10_link_encoder *enc10) +{ + /* Associate HPD with DIG_BE */ + enum hpd_source_id hpd_source = enc10->base.hpd_source; + + REG_UPDATE(DIG_BE_CNTL, DIG_HPD_SELECT, hpd_source); +} + +bool dcn10_link_encoder_validate_dvi_output( + const struct dcn10_link_encoder *enc10, + enum signal_type connector_signal, + enum signal_type signal, + const struct dc_crtc_timing *crtc_timing) +{ + uint32_t max_pixel_clock = TMDS_MAX_PIXEL_CLOCK; + + if (signal == SIGNAL_TYPE_DVI_DUAL_LINK) + max_pixel_clock *= 2; + + /* This handles the case of HDMI downgrade to DVI we don't want to + * we don't want to cap the pixel clock if the DDI is not DVI. + */ + if (connector_signal != SIGNAL_TYPE_DVI_DUAL_LINK && + connector_signal != SIGNAL_TYPE_DVI_SINGLE_LINK) + max_pixel_clock = enc10->base.features.max_hdmi_pixel_clock; + + /* DVI only support RGB pixel encoding */ + if (crtc_timing->pixel_encoding != PIXEL_ENCODING_RGB) + return false; + + /*connect DVI via adpater's HDMI connector*/ + if ((connector_signal == SIGNAL_TYPE_DVI_SINGLE_LINK || + connector_signal == SIGNAL_TYPE_HDMI_TYPE_A) && + signal != SIGNAL_TYPE_HDMI_TYPE_A && + crtc_timing->pix_clk_khz > TMDS_MAX_PIXEL_CLOCK) + return false; + if (crtc_timing->pix_clk_khz < TMDS_MIN_PIXEL_CLOCK) + return false; + + if (crtc_timing->pix_clk_khz > max_pixel_clock) + return false; + + /* DVI supports 6/8bpp single-link and 10/16bpp dual-link */ + switch (crtc_timing->display_color_depth) { + case COLOR_DEPTH_666: + case COLOR_DEPTH_888: + break; + case COLOR_DEPTH_101010: + case COLOR_DEPTH_161616: + if (signal != SIGNAL_TYPE_DVI_DUAL_LINK) + return false; + break; + default: + return false; + } + + return true; +} + +static bool dcn10_link_encoder_validate_hdmi_output( + const struct dcn10_link_encoder *enc10, + const struct dc_crtc_timing *crtc_timing, + int adjusted_pix_clk_khz) +{ + enum dc_color_depth max_deep_color = + enc10->base.features.max_hdmi_deep_color; + + if (max_deep_color < crtc_timing->display_color_depth) + return false; + + if (crtc_timing->display_color_depth < COLOR_DEPTH_888) + return false; + if (adjusted_pix_clk_khz < TMDS_MIN_PIXEL_CLOCK) + return false; + + if ((adjusted_pix_clk_khz == 0) || + (adjusted_pix_clk_khz > enc10->base.features.max_hdmi_pixel_clock)) + return false; + + /* DCE11 HW does not support 420 */ + if (!enc10->base.features.ycbcr420_supported && + crtc_timing->pixel_encoding == PIXEL_ENCODING_YCBCR420) + return false; + + if (!enc10->base.features.flags.bits.HDMI_6GB_EN && + adjusted_pix_clk_khz >= 300000) + return false; + return true; +} + +bool dcn10_link_encoder_validate_dp_output( + const struct dcn10_link_encoder *enc10, + const struct dc_crtc_timing *crtc_timing) +{ + /* default RGB only */ + if (crtc_timing->pixel_encoding == PIXEL_ENCODING_RGB) + return true; + + if (enc10->base.features.flags.bits.IS_YCBCR_CAPABLE) + return true; + + /* for DCE 8.x or later DP Y-only feature, + * we need ASIC cap + FeatureSupportDPYonly, not support 666 + */ + if (crtc_timing->flags.Y_ONLY && + enc10->base.features.flags.bits.IS_YCBCR_CAPABLE && + crtc_timing->display_color_depth != COLOR_DEPTH_666) + return true; + + return false; +} + +void dcn10_link_encoder_construct( + struct dcn10_link_encoder *enc10, + const struct encoder_init_data *init_data, + const struct encoder_feature_support *enc_features, + const struct dcn10_link_enc_registers *link_regs, + const struct dcn10_link_enc_aux_registers *aux_regs, + const struct dcn10_link_enc_hpd_registers *hpd_regs, + const struct dcn10_link_enc_shift *link_shift, + const struct dcn10_link_enc_mask *link_mask) +{ + struct bp_encoder_cap_info bp_cap_info = {0}; + const struct dc_vbios_funcs *bp_funcs = init_data->ctx->dc_bios->funcs; + enum bp_result result = BP_RESULT_OK; + + enc10->base.funcs = &dcn10_lnk_enc_funcs; + enc10->base.ctx = init_data->ctx; + enc10->base.id = init_data->encoder; + + enc10->base.hpd_source = init_data->hpd_source; + enc10->base.connector = init_data->connector; + + enc10->base.preferred_engine = ENGINE_ID_UNKNOWN; + + enc10->base.features = *enc_features; + + enc10->base.transmitter = init_data->transmitter; + + /* set the flag to indicate whether driver poll the I2C data pin + * while doing the DP sink detect + */ + +/* if (dal_adapter_service_is_feature_supported(as, + FEATURE_DP_SINK_DETECT_POLL_DATA_PIN)) + enc10->base.features.flags.bits. + DP_SINK_DETECT_POLL_DATA_PIN = true;*/ + + enc10->base.output_signals = + SIGNAL_TYPE_DVI_SINGLE_LINK | + SIGNAL_TYPE_DVI_DUAL_LINK | + SIGNAL_TYPE_LVDS | + SIGNAL_TYPE_DISPLAY_PORT | + SIGNAL_TYPE_DISPLAY_PORT_MST | + SIGNAL_TYPE_EDP | + SIGNAL_TYPE_HDMI_TYPE_A; + + /* For DCE 8.0 and 8.1, by design, UNIPHY is hardwired to DIG_BE. + * SW always assign DIG_FE 1:1 mapped to DIG_FE for non-MST UNIPHY. + * SW assign DIG_FE to non-MST UNIPHY first and MST last. So prefer + * DIG is per UNIPHY and used by SST DP, eDP, HDMI, DVI and LVDS. + * Prefer DIG assignment is decided by board design. + * For DCE 8.0, there are only max 6 UNIPHYs, we assume board design + * and VBIOS will filter out 7 UNIPHY for DCE 8.0. + * By this, adding DIGG should not hurt DCE 8.0. + * This will let DCE 8.1 share DCE 8.0 as much as possible + */ + + enc10->link_regs = link_regs; + enc10->aux_regs = aux_regs; + enc10->hpd_regs = hpd_regs; + enc10->link_shift = link_shift; + enc10->link_mask = link_mask; + + switch (enc10->base.transmitter) { + case TRANSMITTER_UNIPHY_A: + enc10->base.preferred_engine = ENGINE_ID_DIGA; + break; + case TRANSMITTER_UNIPHY_B: + enc10->base.preferred_engine = ENGINE_ID_DIGB; + break; + case TRANSMITTER_UNIPHY_C: + enc10->base.preferred_engine = ENGINE_ID_DIGC; + break; + case TRANSMITTER_UNIPHY_D: + enc10->base.preferred_engine = ENGINE_ID_DIGD; + break; + case TRANSMITTER_UNIPHY_E: + enc10->base.preferred_engine = ENGINE_ID_DIGE; + break; + case TRANSMITTER_UNIPHY_F: + enc10->base.preferred_engine = ENGINE_ID_DIGF; + break; + case TRANSMITTER_UNIPHY_G: + enc10->base.preferred_engine = ENGINE_ID_DIGG; + break; + default: + ASSERT_CRITICAL(false); + enc10->base.preferred_engine = ENGINE_ID_UNKNOWN; + } + + /* default to one to mirror Windows behavior */ + enc10->base.features.flags.bits.HDMI_6GB_EN = 1; + + result = bp_funcs->get_encoder_cap_info(enc10->base.ctx->dc_bios, + enc10->base.id, &bp_cap_info); + + /* Override features with DCE-specific values */ + if (result == BP_RESULT_OK) { + enc10->base.features.flags.bits.IS_HBR2_CAPABLE = + bp_cap_info.DP_HBR2_EN; + enc10->base.features.flags.bits.IS_HBR3_CAPABLE = + bp_cap_info.DP_HBR3_EN; + enc10->base.features.flags.bits.HDMI_6GB_EN = bp_cap_info.HDMI_6GB_EN; + } else { + DC_LOG_WARNING("%s: Failed to get encoder_cap_info from VBIOS with error code %d!\n", + __func__, + result); + } +} + +bool dcn10_link_encoder_validate_output_with_stream( + struct link_encoder *enc, + const struct dc_stream_state *stream) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + bool is_valid; + + switch (stream->signal) { + case SIGNAL_TYPE_DVI_SINGLE_LINK: + case SIGNAL_TYPE_DVI_DUAL_LINK: + is_valid = dcn10_link_encoder_validate_dvi_output( + enc10, + stream->sink->link->connector_signal, + stream->signal, + &stream->timing); + break; + case SIGNAL_TYPE_HDMI_TYPE_A: + is_valid = dcn10_link_encoder_validate_hdmi_output( + enc10, + &stream->timing, + stream->phy_pix_clk); + break; + case SIGNAL_TYPE_DISPLAY_PORT: + case SIGNAL_TYPE_DISPLAY_PORT_MST: + is_valid = dcn10_link_encoder_validate_dp_output( + enc10, &stream->timing); + break; + case SIGNAL_TYPE_EDP: + is_valid = (stream->timing.pixel_encoding == PIXEL_ENCODING_RGB) ? true : false; + break; + case SIGNAL_TYPE_VIRTUAL: + is_valid = true; + break; + default: + is_valid = false; + break; + } + + return is_valid; +} + +void dcn10_link_encoder_hw_init( + struct link_encoder *enc) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + struct bp_transmitter_control cntl = { 0 }; + enum bp_result result; + + cntl.action = TRANSMITTER_CONTROL_INIT; + cntl.engine_id = ENGINE_ID_UNKNOWN; + cntl.transmitter = enc10->base.transmitter; + cntl.connector_obj_id = enc10->base.connector; + cntl.lanes_number = LANE_COUNT_FOUR; + cntl.coherent = false; + cntl.hpd_sel = enc10->base.hpd_source; + + if (enc10->base.connector.id == CONNECTOR_ID_EDP) + cntl.signal = SIGNAL_TYPE_EDP; + + result = link_transmitter_control(enc10, &cntl); + + if (result != BP_RESULT_OK) { + DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n", + __func__); + BREAK_TO_DEBUGGER(); + return; + } + + if (enc10->base.connector.id == CONNECTOR_ID_LVDS) { + cntl.action = TRANSMITTER_CONTROL_BACKLIGHT_BRIGHTNESS; + + result = link_transmitter_control(enc10, &cntl); + + ASSERT(result == BP_RESULT_OK); + + } + aux_initialize(enc10); + + /* reinitialize HPD. + * hpd_initialize() will pass DIG_FE id to HW context. + * All other routine within HW context will use fe_engine_offset + * as DIG_FE id even caller pass DIG_FE id. + * So this routine must be called first. + */ + hpd_initialize(enc10); +} + +void dcn10_link_encoder_destroy(struct link_encoder **enc) +{ + kfree(TO_DCN10_LINK_ENC(*enc)); + *enc = NULL; +} + +void dcn10_link_encoder_setup( + struct link_encoder *enc, + enum signal_type signal) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + + switch (signal) { + case SIGNAL_TYPE_EDP: + case SIGNAL_TYPE_DISPLAY_PORT: + /* DP SST */ + REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 0); + break; + case SIGNAL_TYPE_LVDS: + /* LVDS */ + REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 1); + break; + case SIGNAL_TYPE_DVI_SINGLE_LINK: + case SIGNAL_TYPE_DVI_DUAL_LINK: + /* TMDS-DVI */ + REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 2); + break; + case SIGNAL_TYPE_HDMI_TYPE_A: + /* TMDS-HDMI */ + REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 3); + break; + case SIGNAL_TYPE_DISPLAY_PORT_MST: + /* DP MST */ + REG_UPDATE(DIG_BE_CNTL, DIG_MODE, 5); + break; + default: + ASSERT_CRITICAL(false); + /* invalid mode ! */ + break; + } + +} + +/* TODO: still need depth or just pass in adjusted pixel clock? */ +void dcn10_link_encoder_enable_tmds_output( + struct link_encoder *enc, + enum clock_source_id clock_source, + enum dc_color_depth color_depth, + enum signal_type signal, + uint32_t pixel_clock) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + struct bp_transmitter_control cntl = { 0 }; + enum bp_result result; + + /* Enable the PHY */ + + cntl.action = TRANSMITTER_CONTROL_ENABLE; + cntl.engine_id = enc->preferred_engine; + cntl.transmitter = enc10->base.transmitter; + cntl.pll_id = clock_source; + cntl.signal = signal; + if (cntl.signal == SIGNAL_TYPE_DVI_DUAL_LINK) + cntl.lanes_number = 8; + else + cntl.lanes_number = 4; + + cntl.hpd_sel = enc10->base.hpd_source; + + cntl.pixel_clock = pixel_clock; + cntl.color_depth = color_depth; + + result = link_transmitter_control(enc10, &cntl); + + if (result != BP_RESULT_OK) { + DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n", + __func__); + BREAK_TO_DEBUGGER(); + } +} + +/* enables DP PHY output */ +void dcn10_link_encoder_enable_dp_output( + struct link_encoder *enc, + const struct dc_link_settings *link_settings, + enum clock_source_id clock_source) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + struct bp_transmitter_control cntl = { 0 }; + enum bp_result result; + + /* Enable the PHY */ + + /* number_of_lanes is used for pixel clock adjust, + * but it's not passed to asic_control. + * We need to set number of lanes manually. + */ + configure_encoder(enc10, link_settings); + + cntl.action = TRANSMITTER_CONTROL_ENABLE; + cntl.engine_id = enc->preferred_engine; + cntl.transmitter = enc10->base.transmitter; + cntl.pll_id = clock_source; + cntl.signal = SIGNAL_TYPE_DISPLAY_PORT; + cntl.lanes_number = link_settings->lane_count; + cntl.hpd_sel = enc10->base.hpd_source; + cntl.pixel_clock = link_settings->link_rate + * LINK_RATE_REF_FREQ_IN_KHZ; + /* TODO: check if undefined works */ + cntl.color_depth = COLOR_DEPTH_UNDEFINED; + + result = link_transmitter_control(enc10, &cntl); + + if (result != BP_RESULT_OK) { + DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n", + __func__); + BREAK_TO_DEBUGGER(); + } +} + +/* enables DP PHY output in MST mode */ +void dcn10_link_encoder_enable_dp_mst_output( + struct link_encoder *enc, + const struct dc_link_settings *link_settings, + enum clock_source_id clock_source) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + struct bp_transmitter_control cntl = { 0 }; + enum bp_result result; + + /* Enable the PHY */ + + /* number_of_lanes is used for pixel clock adjust, + * but it's not passed to asic_control. + * We need to set number of lanes manually. + */ + configure_encoder(enc10, link_settings); + + cntl.action = TRANSMITTER_CONTROL_ENABLE; + cntl.engine_id = ENGINE_ID_UNKNOWN; + cntl.transmitter = enc10->base.transmitter; + cntl.pll_id = clock_source; + cntl.signal = SIGNAL_TYPE_DISPLAY_PORT_MST; + cntl.lanes_number = link_settings->lane_count; + cntl.hpd_sel = enc10->base.hpd_source; + cntl.pixel_clock = link_settings->link_rate + * LINK_RATE_REF_FREQ_IN_KHZ; + /* TODO: check if undefined works */ + cntl.color_depth = COLOR_DEPTH_UNDEFINED; + + result = link_transmitter_control(enc10, &cntl); + + if (result != BP_RESULT_OK) { + DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n", + __func__); + BREAK_TO_DEBUGGER(); + } +} +/* + * @brief + * Disable transmitter and its encoder + */ +void dcn10_link_encoder_disable_output( + struct link_encoder *enc, + enum signal_type signal) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + struct bp_transmitter_control cntl = { 0 }; + enum bp_result result; + + if (!dcn10_is_dig_enabled(enc)) { + /* OF_SKIP_POWER_DOWN_INACTIVE_ENCODER */ + return; + } + /* Power-down RX and disable GPU PHY should be paired. + * Disabling PHY without powering down RX may cause + * symbol lock loss, on which we will get DP Sink interrupt. + */ + + /* There is a case for the DP active dongles + * where we want to disable the PHY but keep RX powered, + * for those we need to ignore DP Sink interrupt + * by checking lane count that has been set + * on the last do_enable_output(). + */ + + /* disable transmitter */ + cntl.action = TRANSMITTER_CONTROL_DISABLE; + cntl.transmitter = enc10->base.transmitter; + cntl.hpd_sel = enc10->base.hpd_source; + cntl.signal = signal; + cntl.connector_obj_id = enc10->base.connector; + + result = link_transmitter_control(enc10, &cntl); + + if (result != BP_RESULT_OK) { + DC_LOG_ERROR("%s: Failed to execute VBIOS command table!\n", + __func__); + BREAK_TO_DEBUGGER(); + return; + } + + /* disable encoder */ + if (dc_is_dp_signal(signal)) + link_encoder_disable(enc10); +} + +void dcn10_link_encoder_dp_set_lane_settings( + struct link_encoder *enc, + const struct link_training_settings *link_settings) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + union dpcd_training_lane_set training_lane_set = { { 0 } }; + int32_t lane = 0; + struct bp_transmitter_control cntl = { 0 }; + + if (!link_settings) { + BREAK_TO_DEBUGGER(); + return; + } + + cntl.action = TRANSMITTER_CONTROL_SET_VOLTAGE_AND_PREEMPASIS; + cntl.transmitter = enc10->base.transmitter; + cntl.connector_obj_id = enc10->base.connector; + cntl.lanes_number = link_settings->link_settings.lane_count; + cntl.hpd_sel = enc10->base.hpd_source; + cntl.pixel_clock = link_settings->link_settings.link_rate * + LINK_RATE_REF_FREQ_IN_KHZ; + + for (lane = 0; lane < link_settings->link_settings.lane_count; lane++) { + /* translate lane settings */ + + training_lane_set.bits.VOLTAGE_SWING_SET = + link_settings->lane_settings[lane].VOLTAGE_SWING; + training_lane_set.bits.PRE_EMPHASIS_SET = + link_settings->lane_settings[lane].PRE_EMPHASIS; + + /* post cursor 2 setting only applies to HBR2 link rate */ + if (link_settings->link_settings.link_rate == LINK_RATE_HIGH2) { + /* this is passed to VBIOS + * to program post cursor 2 level + */ + training_lane_set.bits.POST_CURSOR2_SET = + link_settings->lane_settings[lane].POST_CURSOR2; + } + + cntl.lane_select = lane; + cntl.lane_settings = training_lane_set.raw; + + /* call VBIOS table to set voltage swing and pre-emphasis */ + link_transmitter_control(enc10, &cntl); + } +} + +/* set DP PHY test and training patterns */ +void dcn10_link_encoder_dp_set_phy_pattern( + struct link_encoder *enc, + const struct encoder_set_dp_phy_pattern_param *param) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + + switch (param->dp_phy_pattern) { + case DP_TEST_PATTERN_TRAINING_PATTERN1: + dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 0); + break; + case DP_TEST_PATTERN_TRAINING_PATTERN2: + dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 1); + break; + case DP_TEST_PATTERN_TRAINING_PATTERN3: + dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 2); + break; + case DP_TEST_PATTERN_TRAINING_PATTERN4: + dcn10_link_encoder_set_dp_phy_pattern_training_pattern(enc, 3); + break; + case DP_TEST_PATTERN_D102: + set_dp_phy_pattern_d102(enc10); + break; + case DP_TEST_PATTERN_SYMBOL_ERROR: + set_dp_phy_pattern_symbol_error(enc10); + break; + case DP_TEST_PATTERN_PRBS7: + set_dp_phy_pattern_prbs7(enc10); + break; + case DP_TEST_PATTERN_80BIT_CUSTOM: + set_dp_phy_pattern_80bit_custom( + enc10, param->custom_pattern); + break; + case DP_TEST_PATTERN_CP2520_1: + set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 1); + break; + case DP_TEST_PATTERN_CP2520_2: + set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 2); + break; + case DP_TEST_PATTERN_CP2520_3: + set_dp_phy_pattern_hbr2_compliance_cp2520_2(enc10, 3); + break; + case DP_TEST_PATTERN_VIDEO_MODE: { + set_dp_phy_pattern_passthrough_mode( + enc10, param->dp_panel_mode); + break; + } + + default: + /* invalid phy pattern */ + ASSERT_CRITICAL(false); + break; + } +} + +static void fill_stream_allocation_row_info( + const struct link_mst_stream_allocation *stream_allocation, + uint32_t *src, + uint32_t *slots) +{ + const struct stream_encoder *stream_enc = stream_allocation->stream_enc; + + if (stream_enc) { + *src = stream_enc->id; + *slots = stream_allocation->slot_count; + } else { + *src = 0; + *slots = 0; + } +} + +/* programs DP MST VC payload allocation */ +void dcn10_link_encoder_update_mst_stream_allocation_table( + struct link_encoder *enc, + const struct link_mst_stream_allocation_table *table) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + uint32_t value0 = 0; + uint32_t value1 = 0; + uint32_t value2 = 0; + uint32_t slots = 0; + uint32_t src = 0; + uint32_t retries = 0; + + /* For CZ, there are only 3 pipes. So Virtual channel is up 3.*/ + + /* --- Set MSE Stream Attribute - + * Setup VC Payload Table on Tx Side, + * Issue allocation change trigger + * to commit payload on both tx and rx side + */ + + /* we should clean-up table each time */ + + if (table->stream_count >= 1) { + fill_stream_allocation_row_info( + &table->stream_allocations[0], + &src, + &slots); + } else { + src = 0; + slots = 0; + } + + REG_UPDATE_2(DP_MSE_SAT0, + DP_MSE_SAT_SRC0, src, + DP_MSE_SAT_SLOT_COUNT0, slots); + + if (table->stream_count >= 2) { + fill_stream_allocation_row_info( + &table->stream_allocations[1], + &src, + &slots); + } else { + src = 0; + slots = 0; + } + + REG_UPDATE_2(DP_MSE_SAT0, + DP_MSE_SAT_SRC1, src, + DP_MSE_SAT_SLOT_COUNT1, slots); + + if (table->stream_count >= 3) { + fill_stream_allocation_row_info( + &table->stream_allocations[2], + &src, + &slots); + } else { + src = 0; + slots = 0; + } + + REG_UPDATE_2(DP_MSE_SAT1, + DP_MSE_SAT_SRC2, src, + DP_MSE_SAT_SLOT_COUNT2, slots); + + if (table->stream_count >= 4) { + fill_stream_allocation_row_info( + &table->stream_allocations[3], + &src, + &slots); + } else { + src = 0; + slots = 0; + } + + REG_UPDATE_2(DP_MSE_SAT1, + DP_MSE_SAT_SRC3, src, + DP_MSE_SAT_SLOT_COUNT3, slots); + + /* --- wait for transaction finish */ + + /* send allocation change trigger (ACT) ? + * this step first sends the ACT, + * then double buffers the SAT into the hardware + * making the new allocation active on the DP MST mode link + */ + + /* DP_MSE_SAT_UPDATE: + * 0 - No Action + * 1 - Update SAT with trigger + * 2 - Update SAT without trigger + */ + REG_UPDATE(DP_MSE_SAT_UPDATE, + DP_MSE_SAT_UPDATE, 1); + + /* wait for update to complete + * (i.e. DP_MSE_SAT_UPDATE field is reset to 0) + * then wait for the transmission + * of at least 16 MTP headers on immediate local link. + * i.e. DP_MSE_16_MTP_KEEPOUT field (read only) is reset to 0 + * a value of 1 indicates that DP MST mode + * is in the 16 MTP keepout region after a VC has been added. + * MST stream bandwidth (VC rate) can be configured + * after this bit is cleared + */ + do { + udelay(10); + + value0 = REG_READ(DP_MSE_SAT_UPDATE); + + REG_GET(DP_MSE_SAT_UPDATE, + DP_MSE_SAT_UPDATE, &value1); + + REG_GET(DP_MSE_SAT_UPDATE, + DP_MSE_16_MTP_KEEPOUT, &value2); + + /* bit field DP_MSE_SAT_UPDATE is set to 1 already */ + if (!value1 && !value2) + break; + ++retries; + } while (retries < DP_MST_UPDATE_MAX_RETRY); +} + +void dcn10_link_encoder_connect_dig_be_to_fe( + struct link_encoder *enc, + enum engine_id engine, + bool connect) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + uint32_t field; + + if (engine != ENGINE_ID_UNKNOWN) { + + REG_GET(DIG_BE_CNTL, DIG_FE_SOURCE_SELECT, &field); + + if (connect) + field |= get_frontend_source(engine); + else + field &= ~get_frontend_source(engine); + + REG_UPDATE(DIG_BE_CNTL, DIG_FE_SOURCE_SELECT, field); + } +} + + +#define HPD_REG(reg)\ + (enc10->hpd_regs->reg) + +#define HPD_REG_READ(reg_name) \ + dm_read_reg(CTX, HPD_REG(reg_name)) + +#define HPD_REG_UPDATE_N(reg_name, n, ...) \ + generic_reg_update_ex(CTX, \ + HPD_REG(reg_name), \ + HPD_REG_READ(reg_name), \ + n, __VA_ARGS__) + +#define HPD_REG_UPDATE(reg_name, field, val) \ + HPD_REG_UPDATE_N(reg_name, 1, \ + FN(reg_name, field), val) + +void dcn10_link_encoder_enable_hpd(struct link_encoder *enc) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + + HPD_REG_UPDATE(DC_HPD_CONTROL, + DC_HPD_EN, 1); +} + +void dcn10_link_encoder_disable_hpd(struct link_encoder *enc) +{ + struct dcn10_link_encoder *enc10 = TO_DCN10_LINK_ENC(enc); + + HPD_REG_UPDATE(DC_HPD_CONTROL, + DC_HPD_EN, 0); +} + + +#define AUX_REG(reg)\ + (enc10->aux_regs->reg) + +#define AUX_REG_READ(reg_name) \ + dm_read_reg(CTX, AUX_REG(reg_name)) + +#define AUX_REG_UPDATE_N(reg_name, n, ...) \ + generic_reg_update_ex(CTX, \ + AUX_REG(reg_name), \ + AUX_REG_READ(reg_name), \ + n, __VA_ARGS__) + +#define AUX_REG_UPDATE(reg_name, field, val) \ + AUX_REG_UPDATE_N(reg_name, 1, \ + FN(reg_name, field), val) + +#define AUX_REG_UPDATE_2(reg, f1, v1, f2, v2) \ + AUX_REG_UPDATE_N(reg, 2,\ + FN(reg, f1), v1,\ + FN(reg, f2), v2) + +static void aux_initialize( + struct dcn10_link_encoder *enc10) +{ + enum hpd_source_id hpd_source = enc10->base.hpd_source; + + AUX_REG_UPDATE_2(AUX_CONTROL, + AUX_HPD_SEL, hpd_source, + AUX_LS_READ_EN, 0); + + /* 1/4 window (the maximum allowed) */ + AUX_REG_UPDATE(AUX_DPHY_RX_CONTROL0, + AUX_RX_RECEIVE_WINDOW, 1); +} |