diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/inc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h b/drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h new file mode 100644 index 000000000000..dea21702edff --- /dev/null +++ b/drivers/gpu/drm/amd/display/modules/inc/mod_hdcp.h @@ -0,0 +1,289 @@ +/* + * Copyright 2019 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 MOD_HDCP_H_ +#define MOD_HDCP_H_ + +#include "os_types.h" +#include "signal_types.h" + +/* Forward Declarations */ +struct mod_hdcp; + +#define MAX_NUM_OF_DISPLAYS 6 +#define MAX_NUM_OF_ATTEMPTS 4 +#define MAX_NUM_OF_ERROR_TRACE 10 + +/* detailed return status */ +enum mod_hdcp_status { + MOD_HDCP_STATUS_SUCCESS = 0, + MOD_HDCP_STATUS_FAILURE, + MOD_HDCP_STATUS_RESET_NEEDED, + MOD_HDCP_STATUS_DISPLAY_OUT_OF_BOUND, + MOD_HDCP_STATUS_DISPLAY_NOT_FOUND, + MOD_HDCP_STATUS_INVALID_STATE, + MOD_HDCP_STATUS_NOT_IMPLEMENTED, + MOD_HDCP_STATUS_INTERNAL_POLICY_FAILURE, + MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE, + MOD_HDCP_STATUS_CREATE_PSP_SERVICE_FAILURE, + MOD_HDCP_STATUS_DESTROY_PSP_SERVICE_FAILURE, + MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE, + MOD_HDCP_STATUS_HDCP1_DESTROY_SESSION_FAILURE, + MOD_HDCP_STATUS_HDCP1_VALIDATE_ENCRYPTION_FAILURE, + MOD_HDCP_STATUS_HDCP1_NOT_HDCP_REPEATER, + MOD_HDCP_STATUS_HDCP1_NOT_CAPABLE, + MOD_HDCP_STATUS_HDCP1_R0_PRIME_PENDING, + MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE, + MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY, + MOD_HDCP_STATUS_HDCP1_VALIDATE_KSV_LIST_FAILURE, + MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION, + MOD_HDCP_STATUS_HDCP1_ENABLE_STREAM_ENCRYPTION_FAILURE, + MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE, + MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE, + MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE, + MOD_HDCP_STATUS_HDCP1_LINK_INTEGRITY_FAILURE, + MOD_HDCP_STATUS_HDCP1_REAUTH_REQUEST_ISSUED, + MOD_HDCP_STATUS_HDCP1_LINK_MAINTENANCE_FAILURE, + MOD_HDCP_STATUS_HDCP1_INVALID_BKSV, + MOD_HDCP_STATUS_DDC_FAILURE, /* TODO: specific errors */ + MOD_HDCP_STATUS_INVALID_OPERATION, + MOD_HDCP_STATUS_HDCP2_NOT_CAPABLE, + MOD_HDCP_STATUS_HDCP2_CREATE_SESSION_FAILURE, + MOD_HDCP_STATUS_HDCP2_DESTROY_SESSION_FAILURE, + MOD_HDCP_STATUS_HDCP2_PREP_AKE_INIT_FAILURE, + MOD_HDCP_STATUS_HDCP2_AKE_CERT_PENDING, + MOD_HDCP_STATUS_HDCP2_H_PRIME_PENDING, + MOD_HDCP_STATUS_HDCP2_PAIRING_INFO_PENDING, + MOD_HDCP_STATUS_HDCP2_VALIDATE_AKE_CERT_FAILURE, + MOD_HDCP_STATUS_HDCP2_VALIDATE_H_PRIME_FAILURE, + MOD_HDCP_STATUS_HDCP2_VALIDATE_PAIRING_INFO_FAILURE, + MOD_HDCP_STATUS_HDCP2_PREP_LC_INIT_FAILURE, + MOD_HDCP_STATUS_HDCP2_L_PRIME_PENDING, + MOD_HDCP_STATUS_HDCP2_VALIDATE_L_PRIME_FAILURE, + MOD_HDCP_STATUS_HDCP2_PREP_EKS_FAILURE, + MOD_HDCP_STATUS_HDCP2_ENABLE_ENCRYPTION_FAILURE, + MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_NOT_READY, + MOD_HDCP_STATUS_HDCP2_VALIDATE_RX_ID_LIST_FAILURE, + MOD_HDCP_STATUS_HDCP2_ENABLE_STREAM_ENCRYPTION, + MOD_HDCP_STATUS_HDCP2_STREAM_READY_PENDING, + MOD_HDCP_STATUS_HDCP2_VALIDATE_STREAM_READY_FAILURE, + MOD_HDCP_STATUS_HDCP2_PREPARE_STREAM_MANAGEMENT_FAILURE, + MOD_HDCP_STATUS_HDCP2_REAUTH_REQUEST, + MOD_HDCP_STATUS_HDCP2_REAUTH_LINK_INTEGRITY_FAILURE, + MOD_HDCP_STATUS_HDCP2_DEVICE_COUNT_MISMATCH_FAILURE, +}; + +struct mod_hdcp_displayport { + uint8_t rev; + uint8_t assr_supported; +}; + +struct mod_hdcp_hdmi { + uint8_t reserved; +}; +enum mod_hdcp_operation_mode { + MOD_HDCP_MODE_OFF, + MOD_HDCP_MODE_DEFAULT, + MOD_HDCP_MODE_DP, + MOD_HDCP_MODE_DP_MST +}; + +enum mod_hdcp_display_state { + MOD_HDCP_DISPLAY_INACTIVE = 0, + MOD_HDCP_DISPLAY_ACTIVE, + MOD_HDCP_DISPLAY_ACTIVE_AND_ADDED, + MOD_HDCP_DISPLAY_ENCRYPTION_ENABLED +}; + +struct mod_hdcp_ddc { + void *handle; + struct { + bool (*read_i2c)(void *handle, + uint32_t address, + uint8_t offset, + uint8_t *data, + uint32_t size); + bool (*write_i2c)(void *handle, + uint32_t address, + const uint8_t *data, + uint32_t size); + bool (*read_dpcd)(void *handle, + uint32_t address, + uint8_t *data, + uint32_t size); + bool (*write_dpcd)(void *handle, + uint32_t address, + const uint8_t *data, + uint32_t size); + } funcs; +}; + +struct mod_hdcp_psp { + void *handle; + void *funcs; +}; + +struct mod_hdcp_display_adjustment { + uint8_t disable : 1; + uint8_t reserved : 7; +}; + +struct mod_hdcp_link_adjustment_hdcp1 { + uint8_t disable : 1; + uint8_t postpone_encryption : 1; + uint8_t reserved : 6; +}; + +struct mod_hdcp_link_adjustment_hdcp2 { + uint8_t disable : 1; + uint8_t disable_type1 : 1; + uint8_t force_no_stored_km : 1; + uint8_t increase_h_prime_timeout: 1; + uint8_t reserved : 4; +}; + +struct mod_hdcp_link_adjustment { + uint8_t auth_delay; + struct mod_hdcp_link_adjustment_hdcp1 hdcp1; + struct mod_hdcp_link_adjustment_hdcp2 hdcp2; +}; + +struct mod_hdcp_error { + enum mod_hdcp_status status; + uint8_t state_id; +}; + +struct mod_hdcp_trace { + struct mod_hdcp_error errors[MAX_NUM_OF_ERROR_TRACE]; + uint8_t error_count; +}; + +enum mod_hdcp_encryption_status { + MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF = 0, + MOD_HDCP_ENCRYPTION_STATUS_HDCP1_ON, + MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON, + MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON +}; + +/* per link events dm has to notify to hdcp module */ +enum mod_hdcp_event { + MOD_HDCP_EVENT_CALLBACK = 0, + MOD_HDCP_EVENT_WATCHDOG_TIMEOUT, + MOD_HDCP_EVENT_CPIRQ +}; + +/* output flags from module requesting timer operations */ +struct mod_hdcp_output { + uint8_t callback_needed; + uint8_t callback_stop; + uint8_t watchdog_timer_needed; + uint8_t watchdog_timer_stop; + uint16_t callback_delay; + uint16_t watchdog_timer_delay; +}; + +/* used to represent per display info */ +struct mod_hdcp_display { + enum mod_hdcp_display_state state; + uint8_t index; + uint8_t controller; + uint8_t dig_fe; + union { + uint8_t vc_id; + }; + struct mod_hdcp_display_adjustment adjust; +}; + +/* used to represent per link info */ +/* in case a link has multiple displays, they share the same link info */ +struct mod_hdcp_link { + enum mod_hdcp_operation_mode mode; + uint8_t dig_be; + uint8_t ddc_line; + union { + struct mod_hdcp_displayport dp; + struct mod_hdcp_hdmi hdmi; + }; + struct mod_hdcp_link_adjustment adjust; +}; + +/* a query structure for a display's hdcp information */ +struct mod_hdcp_display_query { + const struct mod_hdcp_display *display; + const struct mod_hdcp_link *link; + const struct mod_hdcp_trace *trace; + enum mod_hdcp_encryption_status encryption_status; +}; + +/* contains values per on external display configuration change */ +struct mod_hdcp_config { + struct mod_hdcp_psp psp; + struct mod_hdcp_ddc ddc; + uint8_t index; +}; + +struct mod_hdcp; + +/* dm allocates memory of mod_hdcp per dc_link on dm init based on memory size*/ +size_t mod_hdcp_get_memory_size(void); + +/* called per link on link creation */ +enum mod_hdcp_status mod_hdcp_setup(struct mod_hdcp *hdcp, + struct mod_hdcp_config *config); + +/* called per link on link destroy */ +enum mod_hdcp_status mod_hdcp_teardown(struct mod_hdcp *hdcp); + +/* called per display on cp_desired set to true */ +enum mod_hdcp_status mod_hdcp_add_display(struct mod_hdcp *hdcp, + struct mod_hdcp_link *link, struct mod_hdcp_display *display, + struct mod_hdcp_output *output); + +/* called per display on cp_desired set to false */ +enum mod_hdcp_status mod_hdcp_remove_display(struct mod_hdcp *hdcp, + uint8_t index, struct mod_hdcp_output *output); + +/* called to query hdcp information on a specific index */ +enum mod_hdcp_status mod_hdcp_query_display(struct mod_hdcp *hdcp, + uint8_t index, struct mod_hdcp_display_query *query); + +/* called per link on connectivity change */ +enum mod_hdcp_status mod_hdcp_reset_connection(struct mod_hdcp *hdcp, + struct mod_hdcp_output *output); + +/* called per link on events (i.e. callback, watchdog, CP_IRQ) */ +enum mod_hdcp_status mod_hdcp_process_event(struct mod_hdcp *hdcp, + enum mod_hdcp_event event, struct mod_hdcp_output *output); + +/* called to convert enum mod_hdcp_status to c string */ +char *mod_hdcp_status_to_str(int32_t status); + +/* called to convert state id to c string */ +char *mod_hdcp_state_id_to_str(int32_t id); + +/* called to convert signal type to operation mode */ +enum mod_hdcp_operation_mode mod_hdcp_signal_type_to_operation_mode( + enum signal_type signal); +#endif /* MOD_HDCP_H_ */ |