1 // SPDX-License-Identifier: MIT
2 /*
3 * Copyright 2023, Intel Corporation.
4 */
5
6 #include <linux/err.h>
7 #include <drm/intel/i915_hdcp_interface.h>
8
9 #include "i915_drv.h"
10 #include "intel_display_types.h"
11 #include "intel_hdcp_gsc_message.h"
12
13 int
intel_hdcp_gsc_initiate_session(struct device * dev,struct hdcp_port_data * data,struct hdcp2_ake_init * ake_data)14 intel_hdcp_gsc_initiate_session(struct device *dev, struct hdcp_port_data *data,
15 struct hdcp2_ake_init *ake_data)
16 {
17 struct wired_cmd_initiate_hdcp2_session_in session_init_in = {};
18 struct wired_cmd_initiate_hdcp2_session_out session_init_out = {};
19 struct intel_display *display;
20 struct drm_i915_private *i915;
21 ssize_t byte;
22
23 if (!dev || !data || !ake_data)
24 return -EINVAL;
25
26 display = to_intel_display(dev);
27 if (!display) {
28 dev_err(dev, "DRM not initialized, aborting HDCP.\n");
29 return -ENODEV;
30 }
31 i915 = to_i915(display->drm);
32
33 session_init_in.header.api_version = HDCP_API_VERSION;
34 session_init_in.header.command_id = WIRED_INITIATE_HDCP2_SESSION;
35 session_init_in.header.status = FW_HDCP_STATUS_SUCCESS;
36 session_init_in.header.buffer_len =
37 WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_IN;
38
39 session_init_in.port.integrated_port_type = data->port_type;
40 session_init_in.port.physical_port = (u8)data->hdcp_ddi;
41 session_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
42 session_init_in.protocol = data->protocol;
43
44 byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_init_in,
45 sizeof(session_init_in),
46 (u8 *)&session_init_out,
47 sizeof(session_init_out));
48 if (byte < 0) {
49 drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
50 return byte;
51 }
52
53 if (session_init_out.header.status != FW_HDCP_STATUS_SUCCESS) {
54 drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n",
55 WIRED_INITIATE_HDCP2_SESSION,
56 session_init_out.header.status);
57 return -EIO;
58 }
59
60 ake_data->msg_id = HDCP_2_2_AKE_INIT;
61 ake_data->tx_caps = session_init_out.tx_caps;
62 memcpy(ake_data->r_tx, session_init_out.r_tx, HDCP_2_2_RTX_LEN);
63
64 return 0;
65 }
66
67 int
intel_hdcp_gsc_verify_receiver_cert_prepare_km(struct device * dev,struct hdcp_port_data * data,struct hdcp2_ake_send_cert * rx_cert,bool * km_stored,struct hdcp2_ake_no_stored_km * ek_pub_km,size_t * msg_sz)68 intel_hdcp_gsc_verify_receiver_cert_prepare_km(struct device *dev,
69 struct hdcp_port_data *data,
70 struct hdcp2_ake_send_cert *rx_cert,
71 bool *km_stored,
72 struct hdcp2_ake_no_stored_km
73 *ek_pub_km,
74 size_t *msg_sz)
75 {
76 struct wired_cmd_verify_receiver_cert_in verify_rxcert_in = {};
77 struct wired_cmd_verify_receiver_cert_out verify_rxcert_out = {};
78 struct intel_display *display;
79 struct drm_i915_private *i915;
80 ssize_t byte;
81
82 if (!dev || !data || !rx_cert || !km_stored || !ek_pub_km || !msg_sz)
83 return -EINVAL;
84
85 display = to_intel_display(dev);
86 if (!display) {
87 dev_err(dev, "DRM not initialized, aborting HDCP.\n");
88 return -ENODEV;
89 }
90 i915 = to_i915(display->drm);
91
92 verify_rxcert_in.header.api_version = HDCP_API_VERSION;
93 verify_rxcert_in.header.command_id = WIRED_VERIFY_RECEIVER_CERT;
94 verify_rxcert_in.header.status = FW_HDCP_STATUS_SUCCESS;
95 verify_rxcert_in.header.buffer_len =
96 WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_IN;
97
98 verify_rxcert_in.port.integrated_port_type = data->port_type;
99 verify_rxcert_in.port.physical_port = (u8)data->hdcp_ddi;
100 verify_rxcert_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
101
102 verify_rxcert_in.cert_rx = rx_cert->cert_rx;
103 memcpy(verify_rxcert_in.r_rx, &rx_cert->r_rx, HDCP_2_2_RRX_LEN);
104 memcpy(verify_rxcert_in.rx_caps, rx_cert->rx_caps, HDCP_2_2_RXCAPS_LEN);
105
106 byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_rxcert_in,
107 sizeof(verify_rxcert_in),
108 (u8 *)&verify_rxcert_out,
109 sizeof(verify_rxcert_out));
110 if (byte < 0) {
111 drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed: %zd\n", byte);
112 return byte;
113 }
114
115 if (verify_rxcert_out.header.status != FW_HDCP_STATUS_SUCCESS) {
116 drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n",
117 WIRED_VERIFY_RECEIVER_CERT,
118 verify_rxcert_out.header.status);
119 return -EIO;
120 }
121
122 *km_stored = !!verify_rxcert_out.km_stored;
123 if (verify_rxcert_out.km_stored) {
124 ek_pub_km->msg_id = HDCP_2_2_AKE_STORED_KM;
125 *msg_sz = sizeof(struct hdcp2_ake_stored_km);
126 } else {
127 ek_pub_km->msg_id = HDCP_2_2_AKE_NO_STORED_KM;
128 *msg_sz = sizeof(struct hdcp2_ake_no_stored_km);
129 }
130
131 memcpy(ek_pub_km->e_kpub_km, &verify_rxcert_out.ekm_buff,
132 sizeof(verify_rxcert_out.ekm_buff));
133
134 return 0;
135 }
136
137 int
intel_hdcp_gsc_verify_hprime(struct device * dev,struct hdcp_port_data * data,struct hdcp2_ake_send_hprime * rx_hprime)138 intel_hdcp_gsc_verify_hprime(struct device *dev, struct hdcp_port_data *data,
139 struct hdcp2_ake_send_hprime *rx_hprime)
140 {
141 struct wired_cmd_ake_send_hprime_in send_hprime_in = {};
142 struct wired_cmd_ake_send_hprime_out send_hprime_out = {};
143 struct intel_display *display;
144 struct drm_i915_private *i915;
145 ssize_t byte;
146
147 if (!dev || !data || !rx_hprime)
148 return -EINVAL;
149
150 display = to_intel_display(dev);
151 if (!display) {
152 dev_err(dev, "DRM not initialized, aborting HDCP.\n");
153 return -ENODEV;
154 }
155 i915 = to_i915(display->drm);
156
157 send_hprime_in.header.api_version = HDCP_API_VERSION;
158 send_hprime_in.header.command_id = WIRED_AKE_SEND_HPRIME;
159 send_hprime_in.header.status = FW_HDCP_STATUS_SUCCESS;
160 send_hprime_in.header.buffer_len = WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_IN;
161
162 send_hprime_in.port.integrated_port_type = data->port_type;
163 send_hprime_in.port.physical_port = (u8)data->hdcp_ddi;
164 send_hprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
165
166 memcpy(send_hprime_in.h_prime, rx_hprime->h_prime,
167 HDCP_2_2_H_PRIME_LEN);
168
169 byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&send_hprime_in,
170 sizeof(send_hprime_in),
171 (u8 *)&send_hprime_out,
172 sizeof(send_hprime_out));
173 if (byte < 0) {
174 drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
175 return byte;
176 }
177
178 if (send_hprime_out.header.status != FW_HDCP_STATUS_SUCCESS) {
179 drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n",
180 WIRED_AKE_SEND_HPRIME, send_hprime_out.header.status);
181 return -EIO;
182 }
183
184 return 0;
185 }
186
187 int
intel_hdcp_gsc_store_pairing_info(struct device * dev,struct hdcp_port_data * data,struct hdcp2_ake_send_pairing_info * pairing_info)188 intel_hdcp_gsc_store_pairing_info(struct device *dev, struct hdcp_port_data *data,
189 struct hdcp2_ake_send_pairing_info *pairing_info)
190 {
191 struct wired_cmd_ake_send_pairing_info_in pairing_info_in = {};
192 struct wired_cmd_ake_send_pairing_info_out pairing_info_out = {};
193 struct intel_display *display;
194 struct drm_i915_private *i915;
195 ssize_t byte;
196
197 if (!dev || !data || !pairing_info)
198 return -EINVAL;
199
200 display = to_intel_display(dev);
201 if (!display) {
202 dev_err(dev, "DRM not initialized, aborting HDCP.\n");
203 return -ENODEV;
204 }
205 i915 = to_i915(display->drm);
206
207 pairing_info_in.header.api_version = HDCP_API_VERSION;
208 pairing_info_in.header.command_id = WIRED_AKE_SEND_PAIRING_INFO;
209 pairing_info_in.header.status = FW_HDCP_STATUS_SUCCESS;
210 pairing_info_in.header.buffer_len =
211 WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_IN;
212
213 pairing_info_in.port.integrated_port_type = data->port_type;
214 pairing_info_in.port.physical_port = (u8)data->hdcp_ddi;
215 pairing_info_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
216
217 memcpy(pairing_info_in.e_kh_km, pairing_info->e_kh_km,
218 HDCP_2_2_E_KH_KM_LEN);
219
220 byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&pairing_info_in,
221 sizeof(pairing_info_in),
222 (u8 *)&pairing_info_out,
223 sizeof(pairing_info_out));
224 if (byte < 0) {
225 drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
226 return byte;
227 }
228
229 if (pairing_info_out.header.status != FW_HDCP_STATUS_SUCCESS) {
230 drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. Status: 0x%X\n",
231 WIRED_AKE_SEND_PAIRING_INFO,
232 pairing_info_out.header.status);
233 return -EIO;
234 }
235
236 return 0;
237 }
238
239 int
intel_hdcp_gsc_initiate_locality_check(struct device * dev,struct hdcp_port_data * data,struct hdcp2_lc_init * lc_init_data)240 intel_hdcp_gsc_initiate_locality_check(struct device *dev,
241 struct hdcp_port_data *data,
242 struct hdcp2_lc_init *lc_init_data)
243 {
244 struct wired_cmd_init_locality_check_in lc_init_in = {};
245 struct wired_cmd_init_locality_check_out lc_init_out = {};
246 struct intel_display *display;
247 struct drm_i915_private *i915;
248 ssize_t byte;
249
250 if (!dev || !data || !lc_init_data)
251 return -EINVAL;
252
253 display = to_intel_display(dev);
254 if (!display) {
255 dev_err(dev, "DRM not initialized, aborting HDCP.\n");
256 return -ENODEV;
257 }
258 i915 = to_i915(display->drm);
259
260 lc_init_in.header.api_version = HDCP_API_VERSION;
261 lc_init_in.header.command_id = WIRED_INIT_LOCALITY_CHECK;
262 lc_init_in.header.status = FW_HDCP_STATUS_SUCCESS;
263 lc_init_in.header.buffer_len = WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_IN;
264
265 lc_init_in.port.integrated_port_type = data->port_type;
266 lc_init_in.port.physical_port = (u8)data->hdcp_ddi;
267 lc_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
268
269 byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&lc_init_in, sizeof(lc_init_in),
270 (u8 *)&lc_init_out, sizeof(lc_init_out));
271 if (byte < 0) {
272 drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
273 return byte;
274 }
275
276 if (lc_init_out.header.status != FW_HDCP_STATUS_SUCCESS) {
277 drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. status: 0x%X\n",
278 WIRED_INIT_LOCALITY_CHECK, lc_init_out.header.status);
279 return -EIO;
280 }
281
282 lc_init_data->msg_id = HDCP_2_2_LC_INIT;
283 memcpy(lc_init_data->r_n, lc_init_out.r_n, HDCP_2_2_RN_LEN);
284
285 return 0;
286 }
287
288 int
intel_hdcp_gsc_verify_lprime(struct device * dev,struct hdcp_port_data * data,struct hdcp2_lc_send_lprime * rx_lprime)289 intel_hdcp_gsc_verify_lprime(struct device *dev, struct hdcp_port_data *data,
290 struct hdcp2_lc_send_lprime *rx_lprime)
291 {
292 struct wired_cmd_validate_locality_in verify_lprime_in = {};
293 struct wired_cmd_validate_locality_out verify_lprime_out = {};
294 struct intel_display *display;
295 struct drm_i915_private *i915;
296 ssize_t byte;
297
298 if (!dev || !data || !rx_lprime)
299 return -EINVAL;
300
301 display = to_intel_display(dev);
302 if (!display) {
303 dev_err(dev, "DRM not initialized, aborting HDCP.\n");
304 return -ENODEV;
305 }
306 i915 = to_i915(display->drm);
307
308 verify_lprime_in.header.api_version = HDCP_API_VERSION;
309 verify_lprime_in.header.command_id = WIRED_VALIDATE_LOCALITY;
310 verify_lprime_in.header.status = FW_HDCP_STATUS_SUCCESS;
311 verify_lprime_in.header.buffer_len =
312 WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_IN;
313
314 verify_lprime_in.port.integrated_port_type = data->port_type;
315 verify_lprime_in.port.physical_port = (u8)data->hdcp_ddi;
316 verify_lprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
317
318 memcpy(verify_lprime_in.l_prime, rx_lprime->l_prime,
319 HDCP_2_2_L_PRIME_LEN);
320
321 byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_lprime_in,
322 sizeof(verify_lprime_in),
323 (u8 *)&verify_lprime_out,
324 sizeof(verify_lprime_out));
325 if (byte < 0) {
326 drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
327 return byte;
328 }
329
330 if (verify_lprime_out.header.status != FW_HDCP_STATUS_SUCCESS) {
331 drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n",
332 WIRED_VALIDATE_LOCALITY,
333 verify_lprime_out.header.status);
334 return -EIO;
335 }
336
337 return 0;
338 }
339
intel_hdcp_gsc_get_session_key(struct device * dev,struct hdcp_port_data * data,struct hdcp2_ske_send_eks * ske_data)340 int intel_hdcp_gsc_get_session_key(struct device *dev,
341 struct hdcp_port_data *data,
342 struct hdcp2_ske_send_eks *ske_data)
343 {
344 struct wired_cmd_get_session_key_in get_skey_in = {};
345 struct wired_cmd_get_session_key_out get_skey_out = {};
346 struct intel_display *display;
347 struct drm_i915_private *i915;
348 ssize_t byte;
349
350 if (!dev || !data || !ske_data)
351 return -EINVAL;
352
353 display = to_intel_display(dev);
354 if (!display) {
355 dev_err(dev, "DRM not initialized, aborting HDCP.\n");
356 return -ENODEV;
357 }
358 i915 = to_i915(display->drm);
359
360 get_skey_in.header.api_version = HDCP_API_VERSION;
361 get_skey_in.header.command_id = WIRED_GET_SESSION_KEY;
362 get_skey_in.header.status = FW_HDCP_STATUS_SUCCESS;
363 get_skey_in.header.buffer_len = WIRED_CMD_BUF_LEN_GET_SESSION_KEY_IN;
364
365 get_skey_in.port.integrated_port_type = data->port_type;
366 get_skey_in.port.physical_port = (u8)data->hdcp_ddi;
367 get_skey_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
368
369 byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&get_skey_in, sizeof(get_skey_in),
370 (u8 *)&get_skey_out, sizeof(get_skey_out));
371 if (byte < 0) {
372 drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
373 return byte;
374 }
375
376 if (get_skey_out.header.status != FW_HDCP_STATUS_SUCCESS) {
377 drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n",
378 WIRED_GET_SESSION_KEY, get_skey_out.header.status);
379 return -EIO;
380 }
381
382 ske_data->msg_id = HDCP_2_2_SKE_SEND_EKS;
383 memcpy(ske_data->e_dkey_ks, get_skey_out.e_dkey_ks,
384 HDCP_2_2_E_DKEY_KS_LEN);
385 memcpy(ske_data->riv, get_skey_out.r_iv, HDCP_2_2_RIV_LEN);
386
387 return 0;
388 }
389
390 int
intel_hdcp_gsc_repeater_check_flow_prepare_ack(struct device * dev,struct hdcp_port_data * data,struct hdcp2_rep_send_receiverid_list * rep_topology,struct hdcp2_rep_send_ack * rep_send_ack)391 intel_hdcp_gsc_repeater_check_flow_prepare_ack(struct device *dev,
392 struct hdcp_port_data *data,
393 struct hdcp2_rep_send_receiverid_list
394 *rep_topology,
395 struct hdcp2_rep_send_ack
396 *rep_send_ack)
397 {
398 struct wired_cmd_verify_repeater_in verify_repeater_in = {};
399 struct wired_cmd_verify_repeater_out verify_repeater_out = {};
400 struct intel_display *display;
401 struct drm_i915_private *i915;
402 ssize_t byte;
403
404 if (!dev || !rep_topology || !rep_send_ack || !data)
405 return -EINVAL;
406
407 display = to_intel_display(dev);
408 if (!display) {
409 dev_err(dev, "DRM not initialized, aborting HDCP.\n");
410 return -ENODEV;
411 }
412 i915 = to_i915(display->drm);
413
414 verify_repeater_in.header.api_version = HDCP_API_VERSION;
415 verify_repeater_in.header.command_id = WIRED_VERIFY_REPEATER;
416 verify_repeater_in.header.status = FW_HDCP_STATUS_SUCCESS;
417 verify_repeater_in.header.buffer_len =
418 WIRED_CMD_BUF_LEN_VERIFY_REPEATER_IN;
419
420 verify_repeater_in.port.integrated_port_type = data->port_type;
421 verify_repeater_in.port.physical_port = (u8)data->hdcp_ddi;
422 verify_repeater_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
423
424 memcpy(verify_repeater_in.rx_info, rep_topology->rx_info,
425 HDCP_2_2_RXINFO_LEN);
426 memcpy(verify_repeater_in.seq_num_v, rep_topology->seq_num_v,
427 HDCP_2_2_SEQ_NUM_LEN);
428 memcpy(verify_repeater_in.v_prime, rep_topology->v_prime,
429 HDCP_2_2_V_PRIME_HALF_LEN);
430 memcpy(verify_repeater_in.receiver_ids, rep_topology->receiver_ids,
431 HDCP_2_2_RECEIVER_IDS_MAX_LEN);
432
433 byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_repeater_in,
434 sizeof(verify_repeater_in),
435 (u8 *)&verify_repeater_out,
436 sizeof(verify_repeater_out));
437 if (byte < 0) {
438 drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
439 return byte;
440 }
441
442 if (verify_repeater_out.header.status != FW_HDCP_STATUS_SUCCESS) {
443 drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n",
444 WIRED_VERIFY_REPEATER,
445 verify_repeater_out.header.status);
446 return -EIO;
447 }
448
449 memcpy(rep_send_ack->v, verify_repeater_out.v,
450 HDCP_2_2_V_PRIME_HALF_LEN);
451 rep_send_ack->msg_id = HDCP_2_2_REP_SEND_ACK;
452
453 return 0;
454 }
455
intel_hdcp_gsc_verify_mprime(struct device * dev,struct hdcp_port_data * data,struct hdcp2_rep_stream_ready * stream_ready)456 int intel_hdcp_gsc_verify_mprime(struct device *dev,
457 struct hdcp_port_data *data,
458 struct hdcp2_rep_stream_ready *stream_ready)
459 {
460 struct wired_cmd_repeater_auth_stream_req_in *verify_mprime_in;
461 struct wired_cmd_repeater_auth_stream_req_out verify_mprime_out = {};
462 struct intel_display *display;
463 struct drm_i915_private *i915;
464 ssize_t byte;
465 size_t cmd_size;
466
467 if (!dev || !stream_ready || !data)
468 return -EINVAL;
469
470 display = to_intel_display(dev);
471 if (!display) {
472 dev_err(dev, "DRM not initialized, aborting HDCP.\n");
473 return -ENODEV;
474 }
475 i915 = to_i915(display->drm);
476
477 cmd_size = struct_size(verify_mprime_in, streams, data->k);
478 if (cmd_size == SIZE_MAX)
479 return -EINVAL;
480
481 verify_mprime_in = kzalloc(cmd_size, GFP_KERNEL);
482 if (!verify_mprime_in)
483 return -ENOMEM;
484
485 verify_mprime_in->header.api_version = HDCP_API_VERSION;
486 verify_mprime_in->header.command_id = WIRED_REPEATER_AUTH_STREAM_REQ;
487 verify_mprime_in->header.status = FW_HDCP_STATUS_SUCCESS;
488 verify_mprime_in->header.buffer_len = cmd_size - sizeof(verify_mprime_in->header);
489
490 verify_mprime_in->port.integrated_port_type = data->port_type;
491 verify_mprime_in->port.physical_port = (u8)data->hdcp_ddi;
492 verify_mprime_in->port.attached_transcoder = (u8)data->hdcp_transcoder;
493
494 memcpy(verify_mprime_in->m_prime, stream_ready->m_prime, HDCP_2_2_MPRIME_LEN);
495 drm_hdcp_cpu_to_be24(verify_mprime_in->seq_num_m, data->seq_num_m);
496
497 memcpy(verify_mprime_in->streams, data->streams,
498 array_size(data->k, sizeof(*data->streams)));
499
500 verify_mprime_in->k = cpu_to_be16(data->k);
501
502 byte = intel_hdcp_gsc_msg_send(i915, (u8 *)verify_mprime_in, cmd_size,
503 (u8 *)&verify_mprime_out,
504 sizeof(verify_mprime_out));
505 kfree(verify_mprime_in);
506 if (byte < 0) {
507 drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
508 return byte;
509 }
510
511 if (verify_mprime_out.header.status != FW_HDCP_STATUS_SUCCESS) {
512 drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n",
513 WIRED_REPEATER_AUTH_STREAM_REQ,
514 verify_mprime_out.header.status);
515 return -EIO;
516 }
517
518 return 0;
519 }
520
intel_hdcp_gsc_enable_authentication(struct device * dev,struct hdcp_port_data * data)521 int intel_hdcp_gsc_enable_authentication(struct device *dev,
522 struct hdcp_port_data *data)
523 {
524 struct wired_cmd_enable_auth_in enable_auth_in = {};
525 struct wired_cmd_enable_auth_out enable_auth_out = {};
526 struct intel_display *display;
527 struct drm_i915_private *i915;
528 ssize_t byte;
529
530 if (!dev || !data)
531 return -EINVAL;
532
533 display = to_intel_display(dev);
534 if (!display) {
535 dev_err(dev, "DRM not initialized, aborting HDCP.\n");
536 return -ENODEV;
537 }
538 i915 = to_i915(display->drm);
539
540 enable_auth_in.header.api_version = HDCP_API_VERSION;
541 enable_auth_in.header.command_id = WIRED_ENABLE_AUTH;
542 enable_auth_in.header.status = FW_HDCP_STATUS_SUCCESS;
543 enable_auth_in.header.buffer_len = WIRED_CMD_BUF_LEN_ENABLE_AUTH_IN;
544
545 enable_auth_in.port.integrated_port_type = data->port_type;
546 enable_auth_in.port.physical_port = (u8)data->hdcp_ddi;
547 enable_auth_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
548 enable_auth_in.stream_type = data->streams[0].stream_type;
549
550 byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&enable_auth_in,
551 sizeof(enable_auth_in),
552 (u8 *)&enable_auth_out,
553 sizeof(enable_auth_out));
554 if (byte < 0) {
555 drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
556 return byte;
557 }
558
559 if (enable_auth_out.header.status != FW_HDCP_STATUS_SUCCESS) {
560 drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n",
561 WIRED_ENABLE_AUTH, enable_auth_out.header.status);
562 return -EIO;
563 }
564
565 return 0;
566 }
567
568 int
intel_hdcp_gsc_close_session(struct device * dev,struct hdcp_port_data * data)569 intel_hdcp_gsc_close_session(struct device *dev, struct hdcp_port_data *data)
570 {
571 struct wired_cmd_close_session_in session_close_in = {};
572 struct wired_cmd_close_session_out session_close_out = {};
573 struct intel_display *display;
574 struct drm_i915_private *i915;
575 ssize_t byte;
576
577 if (!dev || !data)
578 return -EINVAL;
579
580 display = to_intel_display(dev);
581 if (!display) {
582 dev_err(dev, "DRM not initialized, aborting HDCP.\n");
583 return -ENODEV;
584 }
585 i915 = to_i915(display->drm);
586
587 session_close_in.header.api_version = HDCP_API_VERSION;
588 session_close_in.header.command_id = WIRED_CLOSE_SESSION;
589 session_close_in.header.status = FW_HDCP_STATUS_SUCCESS;
590 session_close_in.header.buffer_len =
591 WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN;
592
593 session_close_in.port.integrated_port_type = data->port_type;
594 session_close_in.port.physical_port = (u8)data->hdcp_ddi;
595 session_close_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
596
597 byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_close_in,
598 sizeof(session_close_in),
599 (u8 *)&session_close_out,
600 sizeof(session_close_out));
601 if (byte < 0) {
602 drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
603 return byte;
604 }
605
606 if (session_close_out.header.status != FW_HDCP_STATUS_SUCCESS) {
607 drm_dbg_kms(&i915->drm, "Session Close Failed. status: 0x%X\n",
608 session_close_out.header.status);
609 return -EIO;
610 }
611
612 return 0;
613 }
614