1 | /* SPDX-License-Identifier: (GPL-2.0+) */ |
2 | /* |
3 | * Copyright © 2017-2019 Intel Corporation |
4 | * |
5 | * Authors: |
6 | * Ramalingam C <ramalingam.c@intel.com> |
7 | */ |
8 | |
9 | #ifndef _I915_HDCP_INTERFACE_H_ |
10 | #define _I915_HDCP_INTERFACE_H_ |
11 | |
12 | #include <linux/mutex.h> |
13 | #include <linux/device.h> |
14 | #include <drm/display/drm_hdcp.h> |
15 | |
16 | /** |
17 | * enum hdcp_port_type - HDCP port implementation type defined by ME/GSC FW |
18 | * @HDCP_PORT_TYPE_INVALID: Invalid hdcp port type |
19 | * @HDCP_PORT_TYPE_INTEGRATED: In-Host HDCP2.x port |
20 | * @HDCP_PORT_TYPE_LSPCON: HDCP2.2 discrete wired Tx port with LSPCON |
21 | * (HDMI 2.0) solution |
22 | * @HDCP_PORT_TYPE_CPDP: HDCP2.2 discrete wired Tx port using the CPDP (DP 1.3) |
23 | * solution |
24 | */ |
25 | enum hdcp_port_type { |
26 | HDCP_PORT_TYPE_INVALID, |
27 | HDCP_PORT_TYPE_INTEGRATED, |
28 | HDCP_PORT_TYPE_LSPCON, |
29 | HDCP_PORT_TYPE_CPDP |
30 | }; |
31 | |
32 | /** |
33 | * enum hdcp_wired_protocol - HDCP adaptation used on the port |
34 | * @HDCP_PROTOCOL_INVALID: Invalid HDCP adaptation protocol |
35 | * @HDCP_PROTOCOL_HDMI: HDMI adaptation of HDCP used on the port |
36 | * @HDCP_PROTOCOL_DP: DP adaptation of HDCP used on the port |
37 | */ |
38 | enum hdcp_wired_protocol { |
39 | HDCP_PROTOCOL_INVALID, |
40 | HDCP_PROTOCOL_HDMI, |
41 | HDCP_PROTOCOL_DP |
42 | }; |
43 | |
44 | enum hdcp_ddi { |
45 | HDCP_DDI_INVALID_PORT = 0x0, |
46 | |
47 | HDCP_DDI_B = 1, |
48 | HDCP_DDI_C, |
49 | HDCP_DDI_D, |
50 | HDCP_DDI_E, |
51 | HDCP_DDI_F, |
52 | HDCP_DDI_A = 7, |
53 | HDCP_DDI_RANGE_END = HDCP_DDI_A, |
54 | }; |
55 | |
56 | /** |
57 | * enum hdcp_tc - ME/GSC Firmware defined index for transcoders |
58 | * @HDCP_INVALID_TRANSCODER: Index for Invalid transcoder |
59 | * @HDCP_TRANSCODER_EDP: Index for EDP Transcoder |
60 | * @HDCP_TRANSCODER_DSI0: Index for DSI0 Transcoder |
61 | * @HDCP_TRANSCODER_DSI1: Index for DSI1 Transcoder |
62 | * @HDCP_TRANSCODER_A: Index for Transcoder A |
63 | * @HDCP_TRANSCODER_B: Index for Transcoder B |
64 | * @HDCP_TRANSCODER_C: Index for Transcoder C |
65 | * @HDCP_TRANSCODER_D: Index for Transcoder D |
66 | */ |
67 | enum hdcp_transcoder { |
68 | HDCP_INVALID_TRANSCODER = 0x00, |
69 | HDCP_TRANSCODER_EDP, |
70 | HDCP_TRANSCODER_DSI0, |
71 | HDCP_TRANSCODER_DSI1, |
72 | HDCP_TRANSCODER_A = 0x10, |
73 | HDCP_TRANSCODER_B, |
74 | HDCP_TRANSCODER_C, |
75 | HDCP_TRANSCODER_D |
76 | }; |
77 | |
78 | /** |
79 | * struct hdcp_port_data - intel specific HDCP port data |
80 | * @hdcp_ddi: ddi index as per ME/GSC FW |
81 | * @hdcp_transcoder: transcoder index as per ME/GSC FW |
82 | * @port_type: HDCP port type as per ME/GSC FW classification |
83 | * @protocol: HDCP adaptation as per ME/GSC FW |
84 | * @k: No of streams transmitted on a port. Only on DP MST this is != 1 |
85 | * @seq_num_m: Count of RepeaterAuth_Stream_Manage msg propagated. |
86 | * Initialized to 0 on AKE_INIT. Incremented after every successful |
87 | * transmission of RepeaterAuth_Stream_Manage message. When it rolls |
88 | * over re-Auth has to be triggered. |
89 | * @streams: struct hdcp2_streamid_type[k]. Defines the type and id for the |
90 | * streams |
91 | */ |
92 | struct hdcp_port_data { |
93 | enum hdcp_ddi hdcp_ddi; |
94 | enum hdcp_transcoder hdcp_transcoder; |
95 | u8 port_type; |
96 | u8 protocol; |
97 | u16 k; |
98 | u32 seq_num_m; |
99 | struct hdcp2_streamid_type *streams; |
100 | }; |
101 | |
102 | /** |
103 | * struct i915_hdcp_ops- ops for HDCP2.2 services. |
104 | * @owner: Module providing the ops |
105 | * @initiate_hdcp2_session: Initiate a Wired HDCP2.2 Tx Session. |
106 | * And Prepare AKE_Init. |
107 | * @verify_receiver_cert_prepare_km: Verify the Receiver Certificate |
108 | * AKE_Send_Cert and prepare |
109 | AKE_Stored_Km/AKE_No_Stored_Km |
110 | * @verify_hprime: Verify AKE_Send_H_prime |
111 | * @store_pairing_info: Store pairing info received |
112 | * @initiate_locality_check: Prepare LC_Init |
113 | * @verify_lprime: Verify lprime |
114 | * @get_session_key: Prepare SKE_Send_Eks |
115 | * @repeater_check_flow_prepare_ack: Validate the Downstream topology |
116 | * and prepare rep_ack |
117 | * @verify_mprime: Verify mprime |
118 | * @enable_hdcp_authentication: Mark a port as authenticated. |
119 | * @close_hdcp_session: Close the Wired HDCP Tx session per port. |
120 | * This also disables the authenticated state of the port. |
121 | */ |
122 | struct i915_hdcp_ops { |
123 | /** |
124 | * @owner: hdcp module |
125 | */ |
126 | struct module *owner; |
127 | |
128 | int (*initiate_hdcp2_session)(struct device *dev, |
129 | struct hdcp_port_data *data, |
130 | struct hdcp2_ake_init *ake_data); |
131 | int (*verify_receiver_cert_prepare_km)(struct device *dev, |
132 | struct hdcp_port_data *data, |
133 | struct hdcp2_ake_send_cert |
134 | *rx_cert, |
135 | bool *km_stored, |
136 | struct hdcp2_ake_no_stored_km |
137 | *ek_pub_km, |
138 | size_t *msg_sz); |
139 | int (*verify_hprime)(struct device *dev, |
140 | struct hdcp_port_data *data, |
141 | struct hdcp2_ake_send_hprime *rx_hprime); |
142 | int (*store_pairing_info)(struct device *dev, |
143 | struct hdcp_port_data *data, |
144 | struct hdcp2_ake_send_pairing_info |
145 | *pairing_info); |
146 | int (*initiate_locality_check)(struct device *dev, |
147 | struct hdcp_port_data *data, |
148 | struct hdcp2_lc_init *lc_init_data); |
149 | int (*verify_lprime)(struct device *dev, |
150 | struct hdcp_port_data *data, |
151 | struct hdcp2_lc_send_lprime *rx_lprime); |
152 | int (*get_session_key)(struct device *dev, |
153 | struct hdcp_port_data *data, |
154 | struct hdcp2_ske_send_eks *ske_data); |
155 | int (*repeater_check_flow_prepare_ack)(struct device *dev, |
156 | struct hdcp_port_data *data, |
157 | struct hdcp2_rep_send_receiverid_list |
158 | *rep_topology, |
159 | struct hdcp2_rep_send_ack |
160 | *rep_send_ack); |
161 | int (*verify_mprime)(struct device *dev, |
162 | struct hdcp_port_data *data, |
163 | struct hdcp2_rep_stream_ready *stream_ready); |
164 | int (*enable_hdcp_authentication)(struct device *dev, |
165 | struct hdcp_port_data *data); |
166 | int (*close_hdcp_session)(struct device *dev, |
167 | struct hdcp_port_data *data); |
168 | }; |
169 | |
170 | /** |
171 | * struct i915_hdcp_arbiter - Used for communication between i915 |
172 | * and hdcp drivers for the HDCP2.2 services |
173 | * @hdcp_dev: device that provide the HDCP2.2 service from MEI Bus. |
174 | * @hdcp_ops: Ops implemented by hdcp driver or intel_hdcp_gsc , used by i915 driver. |
175 | */ |
176 | struct i915_hdcp_arbiter { |
177 | struct device *hdcp_dev; |
178 | const struct i915_hdcp_ops *ops; |
179 | |
180 | /* To protect the above members. */ |
181 | struct mutex mutex; |
182 | }; |
183 | |
184 | /* fw_hdcp_status: Enumeration of all HDCP Status Codes */ |
185 | enum fw_hdcp_status { |
186 | FW_HDCP_STATUS_SUCCESS = 0x0000, |
187 | |
188 | /* WiDi Generic Status Codes */ |
189 | FW_HDCP_STATUS_INTERNAL_ERROR = 0x1000, |
190 | FW_HDCP_STATUS_UNKNOWN_ERROR = 0x1001, |
191 | FW_HDCP_STATUS_INCORRECT_API_VERSION = 0x1002, |
192 | FW_HDCP_STATUS_INVALID_FUNCTION = 0x1003, |
193 | FW_HDCP_STATUS_INVALID_BUFFER_LENGTH = 0x1004, |
194 | FW_HDCP_STATUS_INVALID_PARAMS = 0x1005, |
195 | FW_HDCP_STATUS_AUTHENTICATION_FAILED = 0x1006, |
196 | |
197 | /* WiDi Status Codes */ |
198 | FW_HDCP_INVALID_SESSION_STATE = 0x6000, |
199 | FW_HDCP_SRM_FRAGMENT_UNEXPECTED = 0x6001, |
200 | FW_HDCP_SRM_INVALID_LENGTH = 0x6002, |
201 | FW_HDCP_SRM_FRAGMENT_OFFSET_INVALID = 0x6003, |
202 | FW_HDCP_SRM_VERIFICATION_FAILED = 0x6004, |
203 | FW_HDCP_SRM_VERSION_TOO_OLD = 0x6005, |
204 | FW_HDCP_RX_CERT_VERIFICATION_FAILED = 0x6006, |
205 | FW_HDCP_RX_REVOKED = 0x6007, |
206 | FW_HDCP_H_VERIFICATION_FAILED = 0x6008, |
207 | FW_HDCP_REPEATER_CHECK_UNEXPECTED = 0x6009, |
208 | FW_HDCP_TOPOLOGY_MAX_EXCEEDED = 0x600A, |
209 | FW_HDCP_V_VERIFICATION_FAILED = 0x600B, |
210 | FW_HDCP_L_VERIFICATION_FAILED = 0x600C, |
211 | FW_HDCP_STREAM_KEY_ALLOC_FAILED = 0x600D, |
212 | FW_HDCP_BASE_KEY_RESET_FAILED = 0x600E, |
213 | FW_HDCP_NONCE_GENERATION_FAILED = 0x600F, |
214 | FW_HDCP_STATUS_INVALID_E_KEY_STATE = 0x6010, |
215 | FW_HDCP_STATUS_INVALID_CS_ICV = 0x6011, |
216 | FW_HDCP_STATUS_INVALID_KB_KEY_STATE = 0x6012, |
217 | FW_HDCP_STATUS_INVALID_PAVP_MODE_ICV = 0x6013, |
218 | FW_HDCP_STATUS_INVALID_PAVP_MODE = 0x6014, |
219 | FW_HDCP_STATUS_LC_MAX_ATTEMPTS = 0x6015, |
220 | |
221 | /* New status for HDCP 2.1 */ |
222 | FW_HDCP_STATUS_MISMATCH_IN_M = 0x6016, |
223 | |
224 | /* New status code for HDCP 2.2 Rx */ |
225 | FW_HDCP_STATUS_RX_PROV_NOT_ALLOWED = 0x6017, |
226 | FW_HDCP_STATUS_RX_PROV_WRONG_SUBJECT = 0x6018, |
227 | FW_HDCP_RX_NEEDS_PROVISIONING = 0x6019, |
228 | FW_HDCP_BKSV_ICV_AUTH_FAILED = 0x6020, |
229 | FW_HDCP_STATUS_INVALID_STREAM_ID = 0x6021, |
230 | FW_HDCP_STATUS_CHAIN_NOT_INITIALIZED = 0x6022, |
231 | FW_HDCP_FAIL_NOT_EXPECTED = 0x6023, |
232 | FW_HDCP_FAIL_HDCP_OFF = 0x6024, |
233 | FW_HDCP_FAIL_INVALID_PAVP_MEMORY_MODE = 0x6025, |
234 | FW_HDCP_FAIL_AES_ECB_FAILURE = 0x6026, |
235 | FW_HDCP_FEATURE_NOT_SUPPORTED = 0x6027, |
236 | FW_HDCP_DMA_READ_ERROR = 0x6028, |
237 | FW_HDCP_DMA_WRITE_ERROR = 0x6029, |
238 | FW_HDCP_FAIL_INVALID_PACKET_SIZE = 0x6030, |
239 | FW_HDCP_H264_PARSING_ERROR = 0x6031, |
240 | FW_HDCP_HDCP2_ERRATA_VIDEO_VIOLATION = 0x6032, |
241 | FW_HDCP_HDCP2_ERRATA_AUDIO_VIOLATION = 0x6033, |
242 | FW_HDCP_TX_ACTIVE_ERROR = 0x6034, |
243 | FW_HDCP_MODE_CHANGE_ERROR = 0x6035, |
244 | FW_HDCP_STREAM_TYPE_ERROR = 0x6036, |
245 | FW_HDCP_STREAM_MANAGE_NOT_POSSIBLE = 0x6037, |
246 | |
247 | FW_HDCP_STATUS_PORT_INVALID_COMMAND = 0x6038, |
248 | FW_HDCP_STATUS_UNSUPPORTED_PROTOCOL = 0x6039, |
249 | FW_HDCP_STATUS_INVALID_PORT_INDEX = 0x603a, |
250 | FW_HDCP_STATUS_TX_AUTH_NEEDED = 0x603b, |
251 | FW_HDCP_STATUS_NOT_INTEGRATED_PORT = 0x603c, |
252 | FW_HDCP_STATUS_SESSION_MAX_REACHED = 0x603d, |
253 | |
254 | /* hdcp capable bit is not set in rx_caps(error is unique to DP) */ |
255 | FW_HDCP_STATUS_NOT_HDCP_CAPABLE = 0x6041, |
256 | |
257 | FW_HDCP_STATUS_INVALID_STREAM_COUNT = 0x6042, |
258 | }; |
259 | |
260 | #define HDCP_API_VERSION 0x00010000 |
261 | |
262 | #define HDCP_M_LEN 16 |
263 | #define HDCP_KH_LEN 16 |
264 | |
265 | /* Payload Buffer size(Excluding Header) for CMDs and corresponding response */ |
266 | /* Wired_Tx_AKE */ |
267 | #define WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_IN (4 + 1) |
268 | #define WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_OUT (4 + 8 + 3) |
269 | |
270 | #define WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_IN (4 + 522 + 8 + 3) |
271 | #define WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_MIN_OUT (4 + 1 + 3 + 16 + 16) |
272 | #define WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_MAX_OUT (4 + 1 + 3 + 128) |
273 | |
274 | #define WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_IN (4 + 32) |
275 | #define WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_OUT (4) |
276 | |
277 | #define WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_IN (4 + 16) |
278 | #define WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_OUT (4) |
279 | |
280 | #define WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN (4) |
281 | #define WIRED_CMD_BUF_LEN_CLOSE_SESSION_OUT (4) |
282 | |
283 | /* Wired_Tx_LC */ |
284 | #define WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_IN (4) |
285 | #define WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_OUT (4 + 8) |
286 | |
287 | #define WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_IN (4 + 32) |
288 | #define WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_OUT (4) |
289 | |
290 | /* Wired_Tx_SKE */ |
291 | #define WIRED_CMD_BUF_LEN_GET_SESSION_KEY_IN (4) |
292 | #define WIRED_CMD_BUF_LEN_GET_SESSION_KEY_OUT (4 + 16 + 8) |
293 | |
294 | /* Wired_Tx_SKE */ |
295 | #define WIRED_CMD_BUF_LEN_ENABLE_AUTH_IN (4 + 1) |
296 | #define WIRED_CMD_BUF_LEN_ENABLE_AUTH_OUT (4) |
297 | |
298 | /* Wired_Tx_Repeater */ |
299 | #define WIRED_CMD_BUF_LEN_VERIFY_REPEATER_IN (4 + 2 + 3 + 16 + 155) |
300 | #define WIRED_CMD_BUF_LEN_VERIFY_REPEATER_OUT (4 + 1 + 16) |
301 | |
302 | #define WIRED_CMD_BUF_LEN_REPEATER_AUTH_STREAM_REQ_MIN_IN (4 + 3 + \ |
303 | 32 + 2 + 2) |
304 | |
305 | #define WIRED_CMD_BUF_LEN_REPEATER_AUTH_STREAM_REQ_OUT (4) |
306 | |
307 | /* hdcp_command_id: Enumeration of all WIRED HDCP Command IDs */ |
308 | enum hdcp_command_id { |
309 | _WIDI_COMMAND_BASE = 0x00030000, |
310 | WIDI_INITIATE_HDCP2_SESSION = _WIDI_COMMAND_BASE, |
311 | HDCP_GET_SRM_STATUS, |
312 | HDCP_SEND_SRM_FRAGMENT, |
313 | |
314 | /* The wired HDCP Tx commands */ |
315 | _WIRED_COMMAND_BASE = 0x00031000, |
316 | WIRED_INITIATE_HDCP2_SESSION = _WIRED_COMMAND_BASE, |
317 | WIRED_VERIFY_RECEIVER_CERT, |
318 | WIRED_AKE_SEND_HPRIME, |
319 | WIRED_AKE_SEND_PAIRING_INFO, |
320 | WIRED_INIT_LOCALITY_CHECK, |
321 | WIRED_VALIDATE_LOCALITY, |
322 | WIRED_GET_SESSION_KEY, |
323 | WIRED_ENABLE_AUTH, |
324 | WIRED_VERIFY_REPEATER, |
325 | WIRED_REPEATER_AUTH_STREAM_REQ, |
326 | WIRED_CLOSE_SESSION, |
327 | |
328 | _WIRED_COMMANDS_COUNT, |
329 | }; |
330 | |
331 | union encrypted_buff { |
332 | u8 e_kpub_km[HDCP_2_2_E_KPUB_KM_LEN]; |
333 | u8 e_kh_km_m[HDCP_2_2_E_KH_KM_M_LEN]; |
334 | struct { |
335 | u8 e_kh_km[HDCP_KH_LEN]; |
336 | u8 m[HDCP_M_LEN]; |
337 | } __packed; |
338 | }; |
339 | |
340 | /* HDCP HECI message header. All header values are little endian. */ |
341 | struct { |
342 | u32 ; |
343 | u32 command_id; |
344 | enum fw_hdcp_status ; |
345 | /* Length of the HECI message (excluding the header) */ |
346 | u32 ; |
347 | } __packed; |
348 | |
349 | /* Empty command request or response. No data follows the header. */ |
350 | struct hdcp_cmd_no_data { |
351 | struct hdcp_cmd_header ; |
352 | } __packed; |
353 | |
354 | /* Uniquely identifies the hdcp port being addressed for a given command. */ |
355 | struct hdcp_port_id { |
356 | u8 integrated_port_type; |
357 | /* physical_port is used until Gen11.5. Must be zero for Gen11.5+ */ |
358 | u8 physical_port; |
359 | /* attached_transcoder is for Gen11.5+. Set to zero for <Gen11.5 */ |
360 | u8 attached_transcoder; |
361 | u8 reserved; |
362 | } __packed; |
363 | |
364 | /* |
365 | * Data structures for integrated wired HDCP2 Tx in |
366 | * support of the AKE protocol |
367 | */ |
368 | /* HECI struct for integrated wired HDCP Tx session initiation. */ |
369 | struct wired_cmd_initiate_hdcp2_session_in { |
370 | struct hdcp_cmd_header ; |
371 | struct hdcp_port_id port; |
372 | u8 protocol; /* for HDMI vs DP */ |
373 | } __packed; |
374 | |
375 | struct wired_cmd_initiate_hdcp2_session_out { |
376 | struct hdcp_cmd_header ; |
377 | struct hdcp_port_id port; |
378 | u8 r_tx[HDCP_2_2_RTX_LEN]; |
379 | struct hdcp2_tx_caps tx_caps; |
380 | } __packed; |
381 | |
382 | /* HECI struct for ending an integrated wired HDCP Tx session. */ |
383 | struct wired_cmd_close_session_in { |
384 | struct hdcp_cmd_header ; |
385 | struct hdcp_port_id port; |
386 | } __packed; |
387 | |
388 | struct wired_cmd_close_session_out { |
389 | struct hdcp_cmd_header ; |
390 | struct hdcp_port_id port; |
391 | } __packed; |
392 | |
393 | /* HECI struct for integrated wired HDCP Tx Rx Cert verification. */ |
394 | struct wired_cmd_verify_receiver_cert_in { |
395 | struct hdcp_cmd_header ; |
396 | struct hdcp_port_id port; |
397 | struct hdcp2_cert_rx cert_rx; |
398 | u8 r_rx[HDCP_2_2_RRX_LEN]; |
399 | u8 rx_caps[HDCP_2_2_RXCAPS_LEN]; |
400 | } __packed; |
401 | |
402 | struct wired_cmd_verify_receiver_cert_out { |
403 | struct hdcp_cmd_header ; |
404 | struct hdcp_port_id port; |
405 | u8 km_stored; |
406 | u8 reserved[3]; |
407 | union encrypted_buff ekm_buff; |
408 | } __packed; |
409 | |
410 | /* HECI struct for verification of Rx's Hprime in a HDCP Tx session */ |
411 | struct wired_cmd_ake_send_hprime_in { |
412 | struct hdcp_cmd_header ; |
413 | struct hdcp_port_id port; |
414 | u8 h_prime[HDCP_2_2_H_PRIME_LEN]; |
415 | } __packed; |
416 | |
417 | struct wired_cmd_ake_send_hprime_out { |
418 | struct hdcp_cmd_header ; |
419 | struct hdcp_port_id port; |
420 | } __packed; |
421 | |
422 | /* |
423 | * HECI struct for sending in AKE pairing data generated by the Rx in an |
424 | * integrated wired HDCP Tx session. |
425 | */ |
426 | struct wired_cmd_ake_send_pairing_info_in { |
427 | struct hdcp_cmd_header ; |
428 | struct hdcp_port_id port; |
429 | u8 e_kh_km[HDCP_2_2_E_KH_KM_LEN]; |
430 | } __packed; |
431 | |
432 | struct wired_cmd_ake_send_pairing_info_out { |
433 | struct hdcp_cmd_header ; |
434 | struct hdcp_port_id port; |
435 | } __packed; |
436 | |
437 | /* Data structures for integrated wired HDCP2 Tx in support of the LC protocol*/ |
438 | /* |
439 | * HECI struct for initiating locality check with an |
440 | * integrated wired HDCP Tx session. |
441 | */ |
442 | struct wired_cmd_init_locality_check_in { |
443 | struct hdcp_cmd_header ; |
444 | struct hdcp_port_id port; |
445 | } __packed; |
446 | |
447 | struct wired_cmd_init_locality_check_out { |
448 | struct hdcp_cmd_header ; |
449 | struct hdcp_port_id port; |
450 | u8 r_n[HDCP_2_2_RN_LEN]; |
451 | } __packed; |
452 | |
453 | /* |
454 | * HECI struct for validating an Rx's LPrime value in an |
455 | * integrated wired HDCP Tx session. |
456 | */ |
457 | struct wired_cmd_validate_locality_in { |
458 | struct hdcp_cmd_header ; |
459 | struct hdcp_port_id port; |
460 | u8 l_prime[HDCP_2_2_L_PRIME_LEN]; |
461 | } __packed; |
462 | |
463 | struct wired_cmd_validate_locality_out { |
464 | struct hdcp_cmd_header ; |
465 | struct hdcp_port_id port; |
466 | } __packed; |
467 | |
468 | /* |
469 | * Data structures for integrated wired HDCP2 Tx in support of the |
470 | * SKE protocol |
471 | */ |
472 | /* HECI struct for creating session key */ |
473 | struct wired_cmd_get_session_key_in { |
474 | struct hdcp_cmd_header ; |
475 | struct hdcp_port_id port; |
476 | } __packed; |
477 | |
478 | struct wired_cmd_get_session_key_out { |
479 | struct hdcp_cmd_header ; |
480 | struct hdcp_port_id port; |
481 | u8 e_dkey_ks[HDCP_2_2_E_DKEY_KS_LEN]; |
482 | u8 r_iv[HDCP_2_2_RIV_LEN]; |
483 | } __packed; |
484 | |
485 | /* HECI struct for the Tx enable authentication command */ |
486 | struct wired_cmd_enable_auth_in { |
487 | struct hdcp_cmd_header ; |
488 | struct hdcp_port_id port; |
489 | u8 stream_type; |
490 | } __packed; |
491 | |
492 | struct wired_cmd_enable_auth_out { |
493 | struct hdcp_cmd_header ; |
494 | struct hdcp_port_id port; |
495 | } __packed; |
496 | |
497 | /* |
498 | * Data structures for integrated wired HDCP2 Tx in support of |
499 | * the repeater protocols |
500 | */ |
501 | /* |
502 | * HECI struct for verifying the downstream repeater's HDCP topology in an |
503 | * integrated wired HDCP Tx session. |
504 | */ |
505 | struct wired_cmd_verify_repeater_in { |
506 | struct hdcp_cmd_header ; |
507 | struct hdcp_port_id port; |
508 | u8 rx_info[HDCP_2_2_RXINFO_LEN]; |
509 | u8 seq_num_v[HDCP_2_2_SEQ_NUM_LEN]; |
510 | u8 v_prime[HDCP_2_2_V_PRIME_HALF_LEN]; |
511 | u8 receiver_ids[HDCP_2_2_RECEIVER_IDS_MAX_LEN]; |
512 | } __packed; |
513 | |
514 | struct wired_cmd_verify_repeater_out { |
515 | struct hdcp_cmd_header ; |
516 | struct hdcp_port_id port; |
517 | u8 content_type_supported; |
518 | u8 v[HDCP_2_2_V_PRIME_HALF_LEN]; |
519 | } __packed; |
520 | |
521 | /* |
522 | * HECI struct in support of stream management in an |
523 | * integrated wired HDCP Tx session. |
524 | */ |
525 | struct wired_cmd_repeater_auth_stream_req_in { |
526 | struct hdcp_cmd_header ; |
527 | struct hdcp_port_id port; |
528 | u8 seq_num_m[HDCP_2_2_SEQ_NUM_LEN]; |
529 | u8 m_prime[HDCP_2_2_MPRIME_LEN]; |
530 | __be16 k; |
531 | struct hdcp2_streamid_type streams[]; |
532 | } __packed; |
533 | |
534 | struct wired_cmd_repeater_auth_stream_req_out { |
535 | struct hdcp_cmd_header ; |
536 | struct hdcp_port_id port; |
537 | } __packed; |
538 | |
539 | #endif /* _I915_HDCP_INTERFACE_H_ */ |
540 | |