1 /* 2 * Copyright 2018 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: AMD 23 * 24 */ 25 26 #ifndef MOD_HDCP_H_ 27 #define MOD_HDCP_H_ 28 29 #include "os_types.h" 30 #include "signal_types.h" 31 32 /* Forward Declarations */ 33 struct mod_hdcp; 34 35 #define MAX_NUM_OF_DISPLAYS 6 36 #define MAX_NUM_OF_ATTEMPTS 4 37 #define MAX_NUM_OF_ERROR_TRACE 10 38 39 /* detailed return status */ 40 enum mod_hdcp_status { 41 MOD_HDCP_STATUS_SUCCESS = 0, 42 MOD_HDCP_STATUS_FAILURE, 43 MOD_HDCP_STATUS_RESET_NEEDED, 44 MOD_HDCP_STATUS_DISPLAY_OUT_OF_BOUND, 45 MOD_HDCP_STATUS_DISPLAY_NOT_FOUND, 46 MOD_HDCP_STATUS_INVALID_STATE, 47 MOD_HDCP_STATUS_NOT_IMPLEMENTED, 48 MOD_HDCP_STATUS_INTERNAL_POLICY_FAILURE, 49 MOD_HDCP_STATUS_UPDATE_TOPOLOGY_FAILURE, 50 MOD_HDCP_STATUS_CREATE_PSP_SERVICE_FAILURE, 51 MOD_HDCP_STATUS_DESTROY_PSP_SERVICE_FAILURE, 52 MOD_HDCP_STATUS_HDCP1_CREATE_SESSION_FAILURE, 53 MOD_HDCP_STATUS_HDCP1_DESTROY_SESSION_FAILURE, 54 MOD_HDCP_STATUS_HDCP1_VALIDATE_ENCRYPTION_FAILURE, 55 MOD_HDCP_STATUS_HDCP1_NOT_HDCP_REPEATER, 56 MOD_HDCP_STATUS_HDCP1_NOT_CAPABLE, 57 MOD_HDCP_STATUS_HDCP1_R0_PRIME_PENDING, 58 MOD_HDCP_STATUS_HDCP1_VALIDATE_RX_FAILURE, 59 MOD_HDCP_STATUS_HDCP1_BKSV_REVOKED, 60 MOD_HDCP_STATUS_HDCP1_KSV_LIST_NOT_READY, 61 MOD_HDCP_STATUS_HDCP1_VALIDATE_KSV_LIST_FAILURE, 62 MOD_HDCP_STATUS_HDCP1_KSV_LIST_REVOKED, 63 MOD_HDCP_STATUS_HDCP1_ENABLE_ENCRYPTION_FAILURE, 64 MOD_HDCP_STATUS_HDCP1_ENABLE_STREAM_ENCRYPTION_FAILURE, 65 MOD_HDCP_STATUS_HDCP1_MAX_CASCADE_EXCEEDED_FAILURE, 66 MOD_HDCP_STATUS_HDCP1_MAX_DEVS_EXCEEDED_FAILURE, 67 MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE, 68 MOD_HDCP_STATUS_HDCP1_LINK_INTEGRITY_FAILURE, 69 MOD_HDCP_STATUS_HDCP1_REAUTH_REQUEST_ISSUED, 70 MOD_HDCP_STATUS_HDCP1_LINK_MAINTENANCE_FAILURE, 71 MOD_HDCP_STATUS_HDCP1_INVALID_BKSV, 72 MOD_HDCP_STATUS_DDC_FAILURE, /* TODO: specific errors */ 73 MOD_HDCP_STATUS_INVALID_OPERATION, 74 MOD_HDCP_STATUS_HDCP2_NOT_CAPABLE, 75 MOD_HDCP_STATUS_HDCP2_CREATE_SESSION_FAILURE, 76 MOD_HDCP_STATUS_HDCP2_DESTROY_SESSION_FAILURE, 77 MOD_HDCP_STATUS_HDCP2_PREP_AKE_INIT_FAILURE, 78 MOD_HDCP_STATUS_HDCP2_AKE_CERT_PENDING, 79 MOD_HDCP_STATUS_HDCP2_H_PRIME_PENDING, 80 MOD_HDCP_STATUS_HDCP2_PAIRING_INFO_PENDING, 81 MOD_HDCP_STATUS_HDCP2_VALIDATE_AKE_CERT_FAILURE, 82 MOD_HDCP_STATUS_HDCP2_AKE_CERT_REVOKED, 83 MOD_HDCP_STATUS_HDCP2_VALIDATE_H_PRIME_FAILURE, 84 MOD_HDCP_STATUS_HDCP2_VALIDATE_PAIRING_INFO_FAILURE, 85 MOD_HDCP_STATUS_HDCP2_PREP_LC_INIT_FAILURE, 86 MOD_HDCP_STATUS_HDCP2_L_PRIME_PENDING, 87 MOD_HDCP_STATUS_HDCP2_VALIDATE_L_PRIME_FAILURE, 88 MOD_HDCP_STATUS_HDCP2_PREP_EKS_FAILURE, 89 MOD_HDCP_STATUS_HDCP2_ENABLE_ENCRYPTION_FAILURE, 90 MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_NOT_READY, 91 MOD_HDCP_STATUS_HDCP2_VALIDATE_RX_ID_LIST_FAILURE, 92 MOD_HDCP_STATUS_HDCP2_RX_ID_LIST_REVOKED, 93 MOD_HDCP_STATUS_HDCP2_ENABLE_STREAM_ENCRYPTION_FAILURE, 94 MOD_HDCP_STATUS_HDCP2_STREAM_READY_PENDING, 95 MOD_HDCP_STATUS_HDCP2_VALIDATE_STREAM_READY_FAILURE, 96 MOD_HDCP_STATUS_HDCP2_PREPARE_STREAM_MANAGEMENT_FAILURE, 97 MOD_HDCP_STATUS_HDCP2_REAUTH_REQUEST, 98 MOD_HDCP_STATUS_HDCP2_REAUTH_LINK_INTEGRITY_FAILURE, 99 MOD_HDCP_STATUS_HDCP2_DEVICE_COUNT_MISMATCH_FAILURE, 100 MOD_HDCP_STATUS_UNSUPPORTED_PSP_VER_FAILURE, 101 }; 102 103 struct mod_hdcp_displayport { 104 uint8_t rev; 105 uint8_t assr_enabled; 106 uint8_t mst_enabled; 107 }; 108 109 struct mod_hdcp_hdmi { 110 uint8_t reserved; 111 }; 112 enum mod_hdcp_operation_mode { 113 MOD_HDCP_MODE_OFF, 114 MOD_HDCP_MODE_DEFAULT, 115 MOD_HDCP_MODE_DP 116 }; 117 118 enum mod_hdcp_display_state { 119 MOD_HDCP_DISPLAY_INACTIVE = 0, 120 MOD_HDCP_DISPLAY_ACTIVE, 121 MOD_HDCP_DISPLAY_ENCRYPTION_ENABLED 122 }; 123 124 struct mod_hdcp_psp_caps { 125 uint8_t dtm_v3_supported; 126 }; 127 128 enum mod_hdcp_display_disable_option { 129 MOD_HDCP_DISPLAY_NOT_DISABLE = 0, 130 MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION, 131 MOD_HDCP_DISPLAY_DISABLE_ENCRYPTION, 132 }; 133 134 struct mod_hdcp_ddc { 135 void *handle; 136 struct { 137 bool (*read_i2c)(void *handle, 138 uint32_t address, 139 uint8_t offset, 140 uint8_t *data, 141 uint32_t size); 142 bool (*write_i2c)(void *handle, 143 uint32_t address, 144 const uint8_t *data, 145 uint32_t size); 146 bool (*read_dpcd)(void *handle, 147 uint32_t address, 148 uint8_t *data, 149 uint32_t size); 150 bool (*write_dpcd)(void *handle, 151 uint32_t address, 152 const uint8_t *data, 153 uint32_t size); 154 } funcs; 155 }; 156 157 struct mod_hdcp_psp { 158 void *handle; 159 void *funcs; 160 struct mod_hdcp_psp_caps caps; 161 }; 162 163 struct mod_hdcp_display_adjustment { 164 uint8_t disable : 2; 165 uint8_t reserved : 6; 166 }; 167 168 struct mod_hdcp_link_adjustment_hdcp1 { 169 uint8_t disable : 1; 170 uint8_t postpone_encryption : 1; 171 uint8_t min_auth_retries_wa : 1; 172 uint8_t reserved : 5; 173 }; 174 175 enum mod_hdcp_force_hdcp_type { 176 MOD_HDCP_FORCE_TYPE_MAX = 0, 177 MOD_HDCP_FORCE_TYPE_0, 178 MOD_HDCP_FORCE_TYPE_1 179 }; 180 181 struct mod_hdcp_link_adjustment_hdcp2 { 182 uint8_t disable : 1; 183 uint8_t force_type : 2; 184 uint8_t force_no_stored_km : 1; 185 uint8_t increase_h_prime_timeout: 1; 186 uint8_t reserved : 3; 187 }; 188 189 struct mod_hdcp_link_adjustment { 190 uint8_t auth_delay; 191 struct mod_hdcp_link_adjustment_hdcp1 hdcp1; 192 struct mod_hdcp_link_adjustment_hdcp2 hdcp2; 193 }; 194 195 struct mod_hdcp_error { 196 enum mod_hdcp_status status; 197 uint8_t state_id; 198 }; 199 200 struct mod_hdcp_trace { 201 struct mod_hdcp_error errors[MAX_NUM_OF_ERROR_TRACE]; 202 uint8_t error_count; 203 }; 204 205 enum mod_hdcp_encryption_status { 206 MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF = 0, 207 MOD_HDCP_ENCRYPTION_STATUS_HDCP1_ON, 208 MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON, 209 MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON, 210 MOD_HDCP_ENCRYPTION_STATUS_HDCP2_ON 211 }; 212 213 /* per link events dm has to notify to hdcp module */ 214 enum mod_hdcp_event { 215 MOD_HDCP_EVENT_CALLBACK = 0, 216 MOD_HDCP_EVENT_WATCHDOG_TIMEOUT, 217 MOD_HDCP_EVENT_CPIRQ 218 }; 219 220 /* output flags from module requesting timer operations */ 221 struct mod_hdcp_output { 222 uint8_t callback_needed; 223 uint8_t callback_stop; 224 uint8_t watchdog_timer_needed; 225 uint8_t watchdog_timer_stop; 226 uint16_t callback_delay; 227 uint16_t watchdog_timer_delay; 228 uint8_t auth_complete; 229 }; 230 231 /* used to represent per display info */ 232 struct mod_hdcp_display { 233 enum mod_hdcp_display_state state; 234 uint8_t index; 235 uint8_t controller; 236 uint8_t dig_fe; 237 uint8_t stream_enc_idx; 238 union { 239 uint8_t vc_id; 240 }; 241 struct mod_hdcp_display_adjustment adjust; 242 }; 243 244 /* used to represent per link info */ 245 /* in case a link has multiple displays, they share the same link info */ 246 struct mod_hdcp_link { 247 enum mod_hdcp_operation_mode mode; 248 uint8_t dig_be; 249 uint8_t ddc_line; 250 uint8_t link_enc_idx; 251 uint8_t phy_idx; 252 uint8_t hdcp_supported_informational; 253 union { 254 struct mod_hdcp_displayport dp; 255 struct mod_hdcp_hdmi hdmi; 256 }; 257 struct mod_hdcp_link_adjustment adjust; 258 }; 259 260 /* a query structure for a display's hdcp information */ 261 struct mod_hdcp_display_query { 262 const struct mod_hdcp_display *display; 263 const struct mod_hdcp_link *link; 264 const struct mod_hdcp_trace *trace; 265 enum mod_hdcp_encryption_status encryption_status; 266 }; 267 268 /* contains values per on external display configuration change */ 269 struct mod_hdcp_config { 270 struct mod_hdcp_psp psp; 271 struct mod_hdcp_ddc ddc; 272 uint8_t index; 273 }; 274 275 /* dm allocates memory of mod_hdcp per dc_link on dm init based on memory size*/ 276 size_t mod_hdcp_get_memory_size(void); 277 278 /* called per link on link creation */ 279 enum mod_hdcp_status mod_hdcp_setup(struct mod_hdcp *hdcp, 280 struct mod_hdcp_config *config); 281 282 /* called per link on link destroy */ 283 enum mod_hdcp_status mod_hdcp_teardown(struct mod_hdcp *hdcp); 284 285 /* called per display after stream is enabled */ 286 enum mod_hdcp_status mod_hdcp_add_display(struct mod_hdcp *hdcp, 287 struct mod_hdcp_link *link, struct mod_hdcp_display *display, 288 struct mod_hdcp_output *output); 289 290 /* called per display before stream is disabled */ 291 enum mod_hdcp_status mod_hdcp_remove_display(struct mod_hdcp *hdcp, 292 uint8_t index, struct mod_hdcp_output *output); 293 294 /* called per display to apply new authentication adjustment */ 295 enum mod_hdcp_status mod_hdcp_update_authentication(struct mod_hdcp *hdcp, 296 uint8_t index, 297 struct mod_hdcp_link_adjustment *link_adjust, 298 struct mod_hdcp_display_adjustment *display_adjust, 299 struct mod_hdcp_output *output); 300 301 /* called to query hdcp information on a specific index */ 302 enum mod_hdcp_status mod_hdcp_query_display(struct mod_hdcp *hdcp, 303 uint8_t index, struct mod_hdcp_display_query *query); 304 305 /* called per link on connectivity change */ 306 enum mod_hdcp_status mod_hdcp_reset_connection(struct mod_hdcp *hdcp, 307 struct mod_hdcp_output *output); 308 309 /* called per link on events (i.e. callback, watchdog, CP_IRQ) */ 310 enum mod_hdcp_status mod_hdcp_process_event(struct mod_hdcp *hdcp, 311 enum mod_hdcp_event event, struct mod_hdcp_output *output); 312 313 /* called to convert enum mod_hdcp_status to c string */ 314 char *mod_hdcp_status_to_str(int32_t status); 315 316 /* called to convert state id to c string */ 317 char *mod_hdcp_state_id_to_str(int32_t id); 318 319 /* called to convert signal type to operation mode */ 320 enum mod_hdcp_operation_mode mod_hdcp_signal_type_to_operation_mode( 321 enum signal_type signal); 322 #endif /* MOD_HDCP_H_ */ 323