/* SPDX-License-Identifier: MIT */ /* * Copyright (C) 2017 Google, Inc. * Copyright _ 2017-2019, Intel Corporation. * * Authors: * Sean Paul <[email protected]> * Ramalingam C <[email protected]> */ #include <linux/component.h> #include <linux/i2c.h> #include <linux/random.h> #include <drm/display/drm_hdcp_helper.h> #include <drm/intel/i915_component.h> #include "i915_drv.h" #include "i915_reg.h" #include "intel_connector.h" #include "intel_de.h" #include "intel_display_power.h" #include "intel_display_power_well.h" #include "intel_display_types.h" #include "intel_hdcp.h" #include "intel_hdcp_gsc.h" #include "intel_hdcp_regs.h" #include "intel_pcode.h" #define KEY_LOAD_TRIES … #define HDCP2_LC_RETRY_CNT … /* WA: 16022217614 */ static void intel_hdcp_disable_hdcp_line_rekeying(struct intel_encoder *encoder, struct intel_hdcp *hdcp) { … } static int intel_conn_to_vcpi(struct intel_atomic_state *state, struct intel_connector *connector) { … } /* * intel_hdcp_required_content_stream selects the most highest common possible HDCP * content_type for all streams in DP MST topology because security f/w doesn't * have any provision to mark content_type for each stream separately, it marks * all available streams with the content_type proivided at the time of port * authentication. This may prohibit the userspace to use type1 content on * HDCP 2.2 capable sink because of other sink are not capable of HDCP 2.2 in * DP MST topology. Though it is not compulsory, security fw should change its * policy to mark different content_types for different streams. */ static int intel_hdcp_required_content_stream(struct intel_atomic_state *state, struct intel_digital_port *dig_port) { … } static int intel_hdcp_prepare_streams(struct intel_atomic_state *state, struct intel_connector *connector) { … } static bool intel_hdcp_is_ksv_valid(u8 *ksv) { … } static int intel_hdcp_read_valid_bksv(struct intel_digital_port *dig_port, const struct intel_hdcp_shim *shim, u8 *bksv) { … } /* Is HDCP1.4 capable on Platform and Sink */ bool intel_hdcp_get_capability(struct intel_connector *connector) { … } /* * Check if the source has all the building blocks ready to make * HDCP 2.2 work */ static bool intel_hdcp2_prerequisite(struct intel_connector *connector) { … } /* Is HDCP2.2 capable on Platform and Sink */ bool intel_hdcp2_get_capability(struct intel_connector *connector) { … } void intel_hdcp_get_remote_capability(struct intel_connector *connector, bool *hdcp_capable, bool *hdcp2_capable) { … } static bool intel_hdcp_in_use(struct drm_i915_private *i915, enum transcoder cpu_transcoder, enum port port) { … } static bool intel_hdcp2_in_use(struct drm_i915_private *i915, enum transcoder cpu_transcoder, enum port port) { … } static int intel_hdcp_poll_ksv_fifo(struct intel_digital_port *dig_port, const struct intel_hdcp_shim *shim) { … } static bool hdcp_key_loadable(struct drm_i915_private *i915) { … } static void intel_hdcp_clear_keys(struct drm_i915_private *i915) { … } static int intel_hdcp_load_keys(struct drm_i915_private *i915) { … } /* Returns updated SHA-1 index */ static int intel_write_sha_text(struct drm_i915_private *i915, u32 sha_text) { … } static u32 intel_hdcp_get_repeater_ctl(struct drm_i915_private *i915, enum transcoder cpu_transcoder, enum port port) { … } static int intel_hdcp_validate_v_prime(struct intel_connector *connector, const struct intel_hdcp_shim *shim, u8 *ksv_fifo, u8 num_downstream, u8 *bstatus) { … } /* Implements Part 2 of the HDCP authorization procedure */ static int intel_hdcp_auth_downstream(struct intel_connector *connector) { … } /* Implements Part 1 of the HDCP authorization procedure */ static int intel_hdcp_auth(struct intel_connector *connector) { … } static int _intel_hdcp_disable(struct intel_connector *connector) { … } static int intel_hdcp1_enable(struct intel_connector *connector) { … } static struct intel_connector *intel_hdcp_to_connector(struct intel_hdcp *hdcp) { … } static void intel_hdcp_update_value(struct intel_connector *connector, u64 value, bool update_property) { … } /* Implements Part 3 of the HDCP authorization procedure */ static int intel_hdcp_check_link(struct intel_connector *connector) { … } static void intel_hdcp_prop_work(struct work_struct *work) { … } bool is_hdcp_supported(struct drm_i915_private *i915, enum port port) { … } static int hdcp2_prepare_ake_init(struct intel_connector *connector, struct hdcp2_ake_init *ake_data) { … } static int hdcp2_verify_rx_cert_prepare_km(struct intel_connector *connector, struct hdcp2_ake_send_cert *rx_cert, bool *paired, struct hdcp2_ake_no_stored_km *ek_pub_km, size_t *msg_sz) { … } static int hdcp2_verify_hprime(struct intel_connector *connector, struct hdcp2_ake_send_hprime *rx_hprime) { … } static int hdcp2_store_pairing_info(struct intel_connector *connector, struct hdcp2_ake_send_pairing_info *pairing_info) { … } static int hdcp2_prepare_lc_init(struct intel_connector *connector, struct hdcp2_lc_init *lc_init) { … } static int hdcp2_verify_lprime(struct intel_connector *connector, struct hdcp2_lc_send_lprime *rx_lprime) { … } static int hdcp2_prepare_skey(struct intel_connector *connector, struct hdcp2_ske_send_eks *ske_data) { … } static int hdcp2_verify_rep_topology_prepare_ack(struct intel_connector *connector, struct hdcp2_rep_send_receiverid_list *rep_topology, struct hdcp2_rep_send_ack *rep_send_ack) { … } static int hdcp2_verify_mprime(struct intel_connector *connector, struct hdcp2_rep_stream_ready *stream_ready) { … } static int hdcp2_authenticate_port(struct intel_connector *connector) { … } static int hdcp2_close_session(struct intel_connector *connector) { … } static int hdcp2_deauthenticate_port(struct intel_connector *connector) { … } /* Authentication flow starts from here */ static int hdcp2_authentication_key_exchange(struct intel_connector *connector) { … } static int hdcp2_locality_check(struct intel_connector *connector) { … } static int hdcp2_session_key_exchange(struct intel_connector *connector) { … } static int _hdcp2_propagate_stream_management_info(struct intel_connector *connector) { … } static int hdcp2_authenticate_repeater_topology(struct intel_connector *connector) { … } static int hdcp2_authenticate_sink(struct intel_connector *connector) { … } static int hdcp2_enable_stream_encryption(struct intel_connector *connector) { … } static int hdcp2_enable_encryption(struct intel_connector *connector) { … } static int hdcp2_disable_encryption(struct intel_connector *connector) { … } static int hdcp2_propagate_stream_management_info(struct intel_connector *connector) { … } static int hdcp2_authenticate_and_encrypt(struct intel_atomic_state *state, struct intel_connector *connector) { … } static int _intel_hdcp2_enable(struct intel_atomic_state *state, struct intel_connector *connector) { … } static int _intel_hdcp2_disable(struct intel_connector *connector, bool hdcp2_link_recovery) { … } /* Implements the Link Integrity Check for HDCP2.2 */ static int intel_hdcp2_check_link(struct intel_connector *connector) { … } static void intel_hdcp_check_work(struct work_struct *work) { … } static int i915_hdcp_component_bind(struct device *drv_kdev, struct device *mei_kdev, void *data) { … } static void i915_hdcp_component_unbind(struct device *drv_kdev, struct device *mei_kdev, void *data) { … } static const struct component_ops i915_hdcp_ops = …; static enum hdcp_ddi intel_get_hdcp_ddi_index(enum port port) { … } static enum hdcp_transcoder intel_get_hdcp_transcoder(enum transcoder cpu_transcoder) { … } static int initialize_hdcp_port_data(struct intel_connector *connector, struct intel_digital_port *dig_port, const struct intel_hdcp_shim *shim) { … } static bool is_hdcp2_supported(struct drm_i915_private *i915) { … } void intel_hdcp_component_init(struct drm_i915_private *i915) { … } static void intel_hdcp2_init(struct intel_connector *connector, struct intel_digital_port *dig_port, const struct intel_hdcp_shim *shim) { … } int intel_hdcp_init(struct intel_connector *connector, struct intel_digital_port *dig_port, const struct intel_hdcp_shim *shim) { … } static int _intel_hdcp_enable(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *pipe_config, const struct drm_connector_state *conn_state) { … } void intel_hdcp_enable(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { … } int intel_hdcp_disable(struct intel_connector *connector) { … } void intel_hdcp_update_pipe(struct intel_atomic_state *state, struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { … } void intel_hdcp_component_fini(struct drm_i915_private *i915) { … } void intel_hdcp_cleanup(struct intel_connector *connector) { … } void intel_hdcp_atomic_check(struct drm_connector *connector, struct drm_connector_state *old_state, struct drm_connector_state *new_state) { … } /* Handles the CP_IRQ raised from the DP HDCP sink */ void intel_hdcp_handle_cp_irq(struct intel_connector *connector) { … }
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