diff options
Diffstat (limited to 'drivers/gpu/drm/amd/dal/link_service/dpsst_link_service.h')
| -rw-r--r-- | drivers/gpu/drm/amd/dal/link_service/dpsst_link_service.h | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/dal/link_service/dpsst_link_service.h b/drivers/gpu/drm/amd/dal/link_service/dpsst_link_service.h new file mode 100644 index 000000000000..928f66132eeb --- /dev/null +++ b/drivers/gpu/drm/amd/dal/link_service/dpsst_link_service.h @@ -0,0 +1,186 @@ +/* + * 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 + * + */ +#ifndef __DAL_DPSST_LINK_SERVICE_H__ +#define __DAL_DPSST_LINK_SERVICE_H__ + +#include "link_service.h" + +struct interrupt_info; +union hpd_irq_data; + +struct irq_registration_info { + irq_handler_idx handler_idx; + enum dal_irq_source src; +}; + +enum { + DPCD_AMD_IEEE_TX_SIGNATURE_BYTE1 = 0x00, + DPCD_AMD_IEEE_TX_SIGNATURE_BYTE2 = 0x00, + DPCD_AMD_IEEE_TX_SIGNATURE_BYTE3 = 0x1A +}; + +enum { + POST_LT_ADJ_REQ_LIMIT = 6, + POST_LT_ADJ_REQ_TIMEOUT = 200 +}; + +enum { + LINK_TRAINING_MAX_RETRY_COUNT = 5, + /* to avoid infinite loop where-in the receiver + * switches between different VS + */ + LINK_TRAINING_MAX_CR_RETRY = 100 +}; +enum gtc_sync_status { + GTC_SYNC_STATUS_DISABLED, GTC_SYNC_STATUS_SYNC_MAINTENANCE +}; + +enum { + UNKNOWN_SINK_COUNT = 0xFFFFFFFF +}; + +struct dpcd_caps { + union dpcd_rev dpcd_rev; + union max_lane_count max_ln_count; + bool allow_invalid_MSA_timing_param; + bool alt_scrambler_supported; + uint32_t sink_dev_id; + uint32_t branch_dev_id; + int8_t branch_dev_name[6]; +}; + +/* States of Compliance Test Specification (CTS DP1.2).*/ +union compliance_test_state { + struct { + uint8_t STEREO_3D_RUNNING:1; + uint8_t RESERVED:7; + } bits; + uint8_t raw; +}; + +struct link_training_preference { + uint32_t FAIL_LINK_TRAINING:1; +}; + +struct tmds_converter_capability { + uint32_t max_tmds_clock; + uint32_t max_color_depth; + bool port_present; + enum dpcd_downstream_port_detailed_type port_detailed_type; + enum dpcd_downstream_port_type port_type; + bool use_default_caps; +}; + +struct dpsst_link_service { + struct link_service link_service; + + irq_handler_idx notify_lower_setting_applied; + struct irq_registration_info dp_sink_irq_info; + irq_handler_idx internal_reenable_link; + + struct link_settings reported_link_cap; + struct link_settings verified_link_cap; + struct link_settings max_link_setting; + struct link_settings preferred_link_setting; + struct link_settings overridden_link_setting; + + struct lane_settings ln_setting; + struct link_training_preference link_training_preference; + + uint32_t max_req_bw_for_verified_linkcap; + + bool test_pattern_enabled; + + struct dpcd_caps dpcd_caps; + /*number of audio endpoint + * supported in sink device. + * Read from DPCD 0x022*/ + uint8_t num_of_audio_endpoint; + union compliance_test_state teststate; + + /*boolean indicating GTC is synchronized or not*/ + enum gtc_sync_status gtc_status; + + /*DPCD structures for converter caps*/ + union downstream_port down_str_port; + union dwnstream_portx_caps down_stream_caps; + + /*parses the raw data of converter caps*/ + struct tmds_converter_capability tmds_conv_capability; + + /*To prevent display detection on a short pulse + * if the previous sink count is the same as the new one.*/ + uint32_t prev_sink_count; + + /*eDP related capabilities*/ + enum dpcd_edp_revision edp_revision; + struct psr_caps psr_caps; + struct topology_mgr *tm; +}; + +struct link_service *dal_dpsst_ls_create( + struct link_service_init_data *init_data); + +bool dal_dpsst_ls_try_enable_link_with_hbr2_fallback( + struct link_service *ls, + const struct hw_path_mode *path_mode); + +bool dal_dpsst_ls_verify_link_cap(struct link_service *ls, + const struct hw_path_mode *path_mode, + struct link_settings *failed_link_setting); + +uint32_t dal_dpsst_ls_bandwidth_in_kbps_from_timing( + const struct hw_crtc_timing *timing); + +uint32_t dal_dpsst_ls_bandwidth_in_kbps_from_link_settings( + const struct link_settings *link_setting); + +void handle_interrupt(const struct interrupt_info *interrupt_info); + +bool dal_dpsst_ls_handle_hpd_irq_link_status( + struct link_service *ls, + union hpd_irq_data *irq_data); + +bool dal_dpsst_ls_handle_hpd_irq_device_service( + struct link_service *ls, + union hpd_irq_data *irq_data); + +enum ddc_result dal_dpsst_ls_read_hpd_irq_data( + struct link_service *ls, + union hpd_irq_data *irq_data); + +void dal_dpsst_ls_set_drive_settings( + struct link_service *ls, + struct display_path *display_path, + struct link_training_settings *lt_settings); + +bool dal_dpsst_ls_set_test_pattern( + struct link_service *ls, + struct hw_path_mode *path_mode, + enum dp_test_pattern test_pattern, + struct link_training_settings *lt_settings, + const uint8_t *custom_pattern, + uint32_t cust_pattern_size); +#endif /*__DAL_DPSST_LINK_SERVICE_H__*/ |