diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/inc/link.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/link.h | 83 |
1 files changed, 75 insertions, 8 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/link.h b/drivers/gpu/drm/amd/display/dc/inc/link.h index 9c05333f62aa..45cdf3bce2d3 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/link.h +++ b/drivers/gpu/drm/amd/display/dc/inc/link.h @@ -28,14 +28,10 @@ /* FILE POLICY AND INTENDED USAGE: * - * This header declares link functions exposed to dc. All functions must have - * "link_" as prefix. For example link_run_my_function. This header is strictly - * private in dc and should never be included in other header files. dc - * components should include this header in their .c files in order to access - * functions in link folder. This file should never include any header files in - * link folder. If there is a need to expose a function declared in one of - * header files in side link folder, you need to move the function declaration - * into this file and prefix it with "link_". + * This header declares link functions exposed to dc. All functions must use + * function pointers. This header is strictly private in dc and should never be + * included by DM. If DM needs to call a new link function, it needs to be + * translated by dc_link_exports.c. */ #include "core_types.h" @@ -49,12 +45,81 @@ struct link_init_data { }; struct link_service { + /* Detection */ struct dc_sink *(*add_remote_sink)( struct dc_link *link, const uint8_t *edid, int len, struct dc_sink_init_data *init_data); void (*remove_remote_sink)(struct dc_link *link, struct dc_sink *sink); + bool (*get_hpd_state)(struct dc_link *link); + void (*enable_hpd)(const struct dc_link *link); + void (*disable_hpd)(const struct dc_link *link); + void (*enable_hpd_filter)(struct dc_link *link, bool enable); + + /* DDC */ + int (*aux_transfer_raw)(struct ddc_service *ddc, + struct aux_payload *payload, + enum aux_return_code_type *operation_result); + + /* DP Capability */ + bool (*dp_is_sink_present)(struct dc_link *link); + bool (*dp_is_fec_supported)(const struct dc_link *link); + bool (*dp_get_max_link_enc_cap)(const struct dc_link *link, + struct dc_link_settings *max_link_enc_cap); + const struct dc_link_settings *(*dp_get_verified_link_cap)( + const struct dc_link *link); + bool (*dp_should_enable_fec)(const struct dc_link *link); + enum dp_link_encoding (*mst_decide_link_encoding_format)(const struct dc_link *link); + bool (*edp_decide_link_settings)(struct dc_link *link, + struct dc_link_settings *link_setting, uint32_t req_bw); + uint32_t (*bw_kbps_from_raw_frl_link_rate_data)(uint8_t bw); + bool (*dp_overwrite_extended_receiver_cap)(struct dc_link *link); + enum lttpr_mode (*dp_decide_lttpr_mode)(struct dc_link *link, + struct dc_link_settings *link_setting); + + /* DP DPIA/PHY */ + int (*dpia_handle_usb4_bandwidth_allocation_for_link)(struct dc_link *link, int peak_bw); + void (*dpia_handle_bw_alloc_response)(struct dc_link *link, uint8_t bw, uint8_t result); + void (*dpcd_write_rx_power_ctrl)(struct dc_link *link, bool on); + + /* DP IRQ Handler */ + bool (*dp_parse_link_loss_status)( + struct dc_link *link, + union hpd_irq_data *hpd_irq_dpcd_data); + bool (*dp_should_allow_hpd_rx_irq)(const struct dc_link *link); + void (*dp_handle_link_loss)(struct dc_link *link); + enum dc_status (*dp_read_hpd_rx_irq_data)( + struct dc_link *link, + union hpd_irq_data *irq_data); + bool (*dp_handle_hpd_rx_irq)(struct dc_link *link, + union hpd_irq_data *out_hpd_irq_dpcd_data, bool *out_link_loss, + bool defer_handling, bool *has_left_work); + + /* eDP Panel Control */ + void (*edp_panel_backlight_power_on)(struct dc_link *link, bool wait_for_hpd); + int (*edp_get_backlight_level)(const struct dc_link *link); + bool (*edp_get_backlight_level_nits)(struct dc_link *link, + uint32_t *backlight_millinits_avg, + uint32_t *backlight_millinits_peak); + bool (*edp_set_backlight_level)(const struct dc_link *link, + uint32_t backlight_pwm_u16_16, + uint32_t frame_ramp); + bool (*edp_set_backlight_level_nits)(struct dc_link *link, + bool isHDR, + uint32_t backlight_millinits, + uint32_t transition_time_in_ms); + int (*edp_get_target_backlight_pwm)(const struct dc_link *link); + bool (*edp_get_psr_state)(const struct dc_link *link, enum dc_psr_state *state); + bool (*edp_set_psr_allow_active)(struct dc_link *link, const bool *allow_active, + bool wait, bool force_static, const unsigned int *power_opts); + bool (*edp_setup_psr)(struct dc_link *link, + const struct dc_stream_state *stream, + struct psr_config *psr_config, + struct psr_context *psr_context); + bool (*edp_wait_for_t12)(struct dc_link *link); + + /* DP CTS */ void (*dp_handle_automated_test)(struct dc_link *link); bool (*dp_set_test_pattern)( struct dc_link *link, @@ -71,6 +136,8 @@ struct link_service { struct dc_link_training_overrides *lt_overrides, struct dc_link *link, bool skip_immediate_retrain); + + /* DP Trace */ bool (*dp_trace_is_initialized)(struct dc_link *link); void (*dp_trace_set_is_logged_flag)(struct dc_link *link, bool in_detection, |