1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
|
// SPDX-License-Identifier: MIT
/*
* Copyright 2023, Intel Corporation.
*/
#include <linux/err.h>
#include <drm/i915_hdcp_interface.h>
#include "i915_drv.h"
#include "intel_hdcp_gsc_message.h"
int
intel_hdcp_gsc_initiate_session(struct device *dev, struct hdcp_port_data *data,
struct hdcp2_ake_init *ake_data)
{
struct wired_cmd_initiate_hdcp2_session_in session_init_in = { { 0 } };
struct wired_cmd_initiate_hdcp2_session_out
session_init_out = { { 0 } };
struct drm_i915_private *i915;
ssize_t byte;
if (!dev || !data || !ake_data)
return -EINVAL;
i915 = kdev_to_i915(dev);
if (!i915) {
dev_err(dev, "DRM not initialized, aborting HDCP.\n");
return -ENODEV;
}
session_init_in.header.api_version = HDCP_API_VERSION;
session_init_in.header.command_id = WIRED_INITIATE_HDCP2_SESSION;
session_init_in.header.status = FW_HDCP_STATUS_SUCCESS;
session_init_in.header.buffer_len =
WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_IN;
session_init_in.port.integrated_port_type = data->port_type;
session_init_in.port.physical_port = (u8)data->hdcp_ddi;
session_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
session_init_in.protocol = data->protocol;
byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_init_in,
sizeof(session_init_in),
(u8 *)&session_init_out,
sizeof(session_init_out));
if (byte < 0) {
drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
return byte;
}
if (session_init_out.header.status != FW_HDCP_STATUS_SUCCESS) {
drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n",
WIRED_INITIATE_HDCP2_SESSION,
session_init_out.header.status);
return -EIO;
}
ake_data->msg_id = HDCP_2_2_AKE_INIT;
ake_data->tx_caps = session_init_out.tx_caps;
memcpy(ake_data->r_tx, session_init_out.r_tx, HDCP_2_2_RTX_LEN);
return 0;
}
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)
{
struct wired_cmd_verify_receiver_cert_in verify_rxcert_in = { { 0 } };
struct wired_cmd_verify_receiver_cert_out verify_rxcert_out = { { 0 } };
struct drm_i915_private *i915;
ssize_t byte;
if (!dev || !data || !rx_cert || !km_stored || !ek_pub_km || !msg_sz)
return -EINVAL;
i915 = kdev_to_i915(dev);
if (!i915) {
dev_err(dev, "DRM not initialized, aborting HDCP.\n");
return -ENODEV;
}
verify_rxcert_in.header.api_version = HDCP_API_VERSION;
verify_rxcert_in.header.command_id = WIRED_VERIFY_RECEIVER_CERT;
verify_rxcert_in.header.status = FW_HDCP_STATUS_SUCCESS;
verify_rxcert_in.header.buffer_len =
WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_IN;
verify_rxcert_in.port.integrated_port_type = data->port_type;
verify_rxcert_in.port.physical_port = (u8)data->hdcp_ddi;
verify_rxcert_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
verify_rxcert_in.cert_rx = rx_cert->cert_rx;
memcpy(verify_rxcert_in.r_rx, &rx_cert->r_rx, HDCP_2_2_RRX_LEN);
memcpy(verify_rxcert_in.rx_caps, rx_cert->rx_caps, HDCP_2_2_RXCAPS_LEN);
byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_rxcert_in,
sizeof(verify_rxcert_in),
(u8 *)&verify_rxcert_out,
sizeof(verify_rxcert_out));
if (byte < 0) {
drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed: %zd\n", byte);
return byte;
}
if (verify_rxcert_out.header.status != FW_HDCP_STATUS_SUCCESS) {
drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n",
WIRED_VERIFY_RECEIVER_CERT,
verify_rxcert_out.header.status);
return -EIO;
}
*km_stored = !!verify_rxcert_out.km_stored;
if (verify_rxcert_out.km_stored) {
ek_pub_km->msg_id = HDCP_2_2_AKE_STORED_KM;
*msg_sz = sizeof(struct hdcp2_ake_stored_km);
} else {
ek_pub_km->msg_id = HDCP_2_2_AKE_NO_STORED_KM;
*msg_sz = sizeof(struct hdcp2_ake_no_stored_km);
}
memcpy(ek_pub_km->e_kpub_km, &verify_rxcert_out.ekm_buff,
sizeof(verify_rxcert_out.ekm_buff));
return 0;
}
int
intel_hdcp_gsc_verify_hprime(struct device *dev, struct hdcp_port_data *data,
struct hdcp2_ake_send_hprime *rx_hprime)
{
struct wired_cmd_ake_send_hprime_in send_hprime_in = { { 0 } };
struct wired_cmd_ake_send_hprime_out send_hprime_out = { { 0 } };
struct drm_i915_private *i915;
ssize_t byte;
if (!dev || !data || !rx_hprime)
return -EINVAL;
i915 = kdev_to_i915(dev);
if (!i915) {
dev_err(dev, "DRM not initialized, aborting HDCP.\n");
return -ENODEV;
}
send_hprime_in.header.api_version = HDCP_API_VERSION;
send_hprime_in.header.command_id = WIRED_AKE_SEND_HPRIME;
send_hprime_in.header.status = FW_HDCP_STATUS_SUCCESS;
send_hprime_in.header.buffer_len = WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_IN;
send_hprime_in.port.integrated_port_type = data->port_type;
send_hprime_in.port.physical_port = (u8)data->hdcp_ddi;
send_hprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
memcpy(send_hprime_in.h_prime, rx_hprime->h_prime,
HDCP_2_2_H_PRIME_LEN);
byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&send_hprime_in,
sizeof(send_hprime_in),
(u8 *)&send_hprime_out,
sizeof(send_hprime_out));
if (byte < 0) {
drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
return byte;
}
if (send_hprime_out.header.status != FW_HDCP_STATUS_SUCCESS) {
drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. Status: 0x%X\n",
WIRED_AKE_SEND_HPRIME, send_hprime_out.header.status);
return -EIO;
}
return 0;
}
int
intel_hdcp_gsc_store_pairing_info(struct device *dev, struct hdcp_port_data *data,
struct hdcp2_ake_send_pairing_info *pairing_info)
{
struct wired_cmd_ake_send_pairing_info_in pairing_info_in = { { 0 } };
struct wired_cmd_ake_send_pairing_info_out pairing_info_out = { { 0 } };
struct drm_i915_private *i915;
ssize_t byte;
if (!dev || !data || !pairing_info)
return -EINVAL;
i915 = kdev_to_i915(dev);
if (!i915) {
dev_err(dev, "DRM not initialized, aborting HDCP.\n");
return -ENODEV;
}
pairing_info_in.header.api_version = HDCP_API_VERSION;
pairing_info_in.header.command_id = WIRED_AKE_SEND_PAIRING_INFO;
pairing_info_in.header.status = FW_HDCP_STATUS_SUCCESS;
pairing_info_in.header.buffer_len =
WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_IN;
pairing_info_in.port.integrated_port_type = data->port_type;
pairing_info_in.port.physical_port = (u8)data->hdcp_ddi;
pairing_info_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
memcpy(pairing_info_in.e_kh_km, pairing_info->e_kh_km,
HDCP_2_2_E_KH_KM_LEN);
byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&pairing_info_in,
sizeof(pairing_info_in),
(u8 *)&pairing_info_out,
sizeof(pairing_info_out));
if (byte < 0) {
drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
return byte;
}
if (pairing_info_out.header.status != FW_HDCP_STATUS_SUCCESS) {
drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. Status: 0x%X\n",
WIRED_AKE_SEND_PAIRING_INFO,
pairing_info_out.header.status);
return -EIO;
}
return 0;
}
int
intel_hdcp_gsc_initiate_locality_check(struct device *dev,
struct hdcp_port_data *data,
struct hdcp2_lc_init *lc_init_data)
{
struct wired_cmd_init_locality_check_in lc_init_in = { { 0 } };
struct wired_cmd_init_locality_check_out lc_init_out = { { 0 } };
struct drm_i915_private *i915;
ssize_t byte;
if (!dev || !data || !lc_init_data)
return -EINVAL;
i915 = kdev_to_i915(dev);
if (!i915) {
dev_err(dev, "DRM not initialized, aborting HDCP.\n");
return -ENODEV;
}
lc_init_in.header.api_version = HDCP_API_VERSION;
lc_init_in.header.command_id = WIRED_INIT_LOCALITY_CHECK;
lc_init_in.header.status = FW_HDCP_STATUS_SUCCESS;
lc_init_in.header.buffer_len = WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_IN;
lc_init_in.port.integrated_port_type = data->port_type;
lc_init_in.port.physical_port = (u8)data->hdcp_ddi;
lc_init_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&lc_init_in, sizeof(lc_init_in),
(u8 *)&lc_init_out, sizeof(lc_init_out));
if (byte < 0) {
drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
return byte;
}
if (lc_init_out.header.status != FW_HDCP_STATUS_SUCCESS) {
drm_dbg_kms(&i915->drm, "FW cmd 0x%08X Failed. status: 0x%X\n",
WIRED_INIT_LOCALITY_CHECK, lc_init_out.header.status);
return -EIO;
}
lc_init_data->msg_id = HDCP_2_2_LC_INIT;
memcpy(lc_init_data->r_n, lc_init_out.r_n, HDCP_2_2_RN_LEN);
return 0;
}
int
intel_hdcp_gsc_verify_lprime(struct device *dev, struct hdcp_port_data *data,
struct hdcp2_lc_send_lprime *rx_lprime)
{
struct wired_cmd_validate_locality_in verify_lprime_in = { { 0 } };
struct wired_cmd_validate_locality_out verify_lprime_out = { { 0 } };
struct drm_i915_private *i915;
ssize_t byte;
if (!dev || !data || !rx_lprime)
return -EINVAL;
i915 = kdev_to_i915(dev);
if (!i915) {
dev_err(dev, "DRM not initialized, aborting HDCP.\n");
return -ENODEV;
}
verify_lprime_in.header.api_version = HDCP_API_VERSION;
verify_lprime_in.header.command_id = WIRED_VALIDATE_LOCALITY;
verify_lprime_in.header.status = FW_HDCP_STATUS_SUCCESS;
verify_lprime_in.header.buffer_len =
WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_IN;
verify_lprime_in.port.integrated_port_type = data->port_type;
verify_lprime_in.port.physical_port = (u8)data->hdcp_ddi;
verify_lprime_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
memcpy(verify_lprime_in.l_prime, rx_lprime->l_prime,
HDCP_2_2_L_PRIME_LEN);
byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_lprime_in,
sizeof(verify_lprime_in),
(u8 *)&verify_lprime_out,
sizeof(verify_lprime_out));
if (byte < 0) {
drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
return byte;
}
if (verify_lprime_out.header.status != FW_HDCP_STATUS_SUCCESS) {
drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n",
WIRED_VALIDATE_LOCALITY,
verify_lprime_out.header.status);
return -EIO;
}
return 0;
}
int intel_hdcp_gsc_get_session_key(struct device *dev,
struct hdcp_port_data *data,
struct hdcp2_ske_send_eks *ske_data)
{
struct wired_cmd_get_session_key_in get_skey_in = { { 0 } };
struct wired_cmd_get_session_key_out get_skey_out = { { 0 } };
struct drm_i915_private *i915;
ssize_t byte;
if (!dev || !data || !ske_data)
return -EINVAL;
i915 = kdev_to_i915(dev);
if (!i915) {
dev_err(dev, "DRM not initialized, aborting HDCP.\n");
return -ENODEV;
}
get_skey_in.header.api_version = HDCP_API_VERSION;
get_skey_in.header.command_id = WIRED_GET_SESSION_KEY;
get_skey_in.header.status = FW_HDCP_STATUS_SUCCESS;
get_skey_in.header.buffer_len = WIRED_CMD_BUF_LEN_GET_SESSION_KEY_IN;
get_skey_in.port.integrated_port_type = data->port_type;
get_skey_in.port.physical_port = (u8)data->hdcp_ddi;
get_skey_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&get_skey_in, sizeof(get_skey_in),
(u8 *)&get_skey_out, sizeof(get_skey_out));
if (byte < 0) {
drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
return byte;
}
if (get_skey_out.header.status != FW_HDCP_STATUS_SUCCESS) {
drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n",
WIRED_GET_SESSION_KEY, get_skey_out.header.status);
return -EIO;
}
ske_data->msg_id = HDCP_2_2_SKE_SEND_EKS;
memcpy(ske_data->e_dkey_ks, get_skey_out.e_dkey_ks,
HDCP_2_2_E_DKEY_KS_LEN);
memcpy(ske_data->riv, get_skey_out.r_iv, HDCP_2_2_RIV_LEN);
return 0;
}
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)
{
struct wired_cmd_verify_repeater_in verify_repeater_in = { { 0 } };
struct wired_cmd_verify_repeater_out verify_repeater_out = { { 0 } };
struct drm_i915_private *i915;
ssize_t byte;
if (!dev || !rep_topology || !rep_send_ack || !data)
return -EINVAL;
i915 = kdev_to_i915(dev);
if (!i915) {
dev_err(dev, "DRM not initialized, aborting HDCP.\n");
return -ENODEV;
}
verify_repeater_in.header.api_version = HDCP_API_VERSION;
verify_repeater_in.header.command_id = WIRED_VERIFY_REPEATER;
verify_repeater_in.header.status = FW_HDCP_STATUS_SUCCESS;
verify_repeater_in.header.buffer_len =
WIRED_CMD_BUF_LEN_VERIFY_REPEATER_IN;
verify_repeater_in.port.integrated_port_type = data->port_type;
verify_repeater_in.port.physical_port = (u8)data->hdcp_ddi;
verify_repeater_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
memcpy(verify_repeater_in.rx_info, rep_topology->rx_info,
HDCP_2_2_RXINFO_LEN);
memcpy(verify_repeater_in.seq_num_v, rep_topology->seq_num_v,
HDCP_2_2_SEQ_NUM_LEN);
memcpy(verify_repeater_in.v_prime, rep_topology->v_prime,
HDCP_2_2_V_PRIME_HALF_LEN);
memcpy(verify_repeater_in.receiver_ids, rep_topology->receiver_ids,
HDCP_2_2_RECEIVER_IDS_MAX_LEN);
byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&verify_repeater_in,
sizeof(verify_repeater_in),
(u8 *)&verify_repeater_out,
sizeof(verify_repeater_out));
if (byte < 0) {
drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
return byte;
}
if (verify_repeater_out.header.status != FW_HDCP_STATUS_SUCCESS) {
drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n",
WIRED_VERIFY_REPEATER,
verify_repeater_out.header.status);
return -EIO;
}
memcpy(rep_send_ack->v, verify_repeater_out.v,
HDCP_2_2_V_PRIME_HALF_LEN);
rep_send_ack->msg_id = HDCP_2_2_REP_SEND_ACK;
return 0;
}
int intel_hdcp_gsc_verify_mprime(struct device *dev,
struct hdcp_port_data *data,
struct hdcp2_rep_stream_ready *stream_ready)
{
struct wired_cmd_repeater_auth_stream_req_in *verify_mprime_in;
struct wired_cmd_repeater_auth_stream_req_out
verify_mprime_out = { { 0 } };
struct drm_i915_private *i915;
ssize_t byte;
size_t cmd_size;
if (!dev || !stream_ready || !data)
return -EINVAL;
i915 = kdev_to_i915(dev);
if (!i915) {
dev_err(dev, "DRM not initialized, aborting HDCP.\n");
return -ENODEV;
}
cmd_size = struct_size(verify_mprime_in, streams, data->k);
if (cmd_size == SIZE_MAX)
return -EINVAL;
verify_mprime_in = kzalloc(cmd_size, GFP_KERNEL);
if (!verify_mprime_in)
return -ENOMEM;
verify_mprime_in->header.api_version = HDCP_API_VERSION;
verify_mprime_in->header.command_id = WIRED_REPEATER_AUTH_STREAM_REQ;
verify_mprime_in->header.status = FW_HDCP_STATUS_SUCCESS;
verify_mprime_in->header.buffer_len = cmd_size - sizeof(verify_mprime_in->header);
verify_mprime_in->port.integrated_port_type = data->port_type;
verify_mprime_in->port.physical_port = (u8)data->hdcp_ddi;
verify_mprime_in->port.attached_transcoder = (u8)data->hdcp_transcoder;
memcpy(verify_mprime_in->m_prime, stream_ready->m_prime, HDCP_2_2_MPRIME_LEN);
drm_hdcp_cpu_to_be24(verify_mprime_in->seq_num_m, data->seq_num_m);
memcpy(verify_mprime_in->streams, data->streams,
array_size(data->k, sizeof(*data->streams)));
verify_mprime_in->k = cpu_to_be16(data->k);
byte = intel_hdcp_gsc_msg_send(i915, (u8 *)verify_mprime_in, cmd_size,
(u8 *)&verify_mprime_out,
sizeof(verify_mprime_out));
kfree(verify_mprime_in);
if (byte < 0) {
drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
return byte;
}
if (verify_mprime_out.header.status != FW_HDCP_STATUS_SUCCESS) {
drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n",
WIRED_REPEATER_AUTH_STREAM_REQ,
verify_mprime_out.header.status);
return -EIO;
}
return 0;
}
int intel_hdcp_gsc_enable_authentication(struct device *dev,
struct hdcp_port_data *data)
{
struct wired_cmd_enable_auth_in enable_auth_in = { { 0 } };
struct wired_cmd_enable_auth_out enable_auth_out = { { 0 } };
struct drm_i915_private *i915;
ssize_t byte;
if (!dev || !data)
return -EINVAL;
i915 = kdev_to_i915(dev);
if (!i915) {
dev_err(dev, "DRM not initialized, aborting HDCP.\n");
return -ENODEV;
}
enable_auth_in.header.api_version = HDCP_API_VERSION;
enable_auth_in.header.command_id = WIRED_ENABLE_AUTH;
enable_auth_in.header.status = FW_HDCP_STATUS_SUCCESS;
enable_auth_in.header.buffer_len = WIRED_CMD_BUF_LEN_ENABLE_AUTH_IN;
enable_auth_in.port.integrated_port_type = data->port_type;
enable_auth_in.port.physical_port = (u8)data->hdcp_ddi;
enable_auth_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
enable_auth_in.stream_type = data->streams[0].stream_type;
byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&enable_auth_in,
sizeof(enable_auth_in),
(u8 *)&enable_auth_out,
sizeof(enable_auth_out));
if (byte < 0) {
drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
return byte;
}
if (enable_auth_out.header.status != FW_HDCP_STATUS_SUCCESS) {
drm_dbg_kms(&i915->drm, "FW cmd 0x%08X failed. status: 0x%X\n",
WIRED_ENABLE_AUTH, enable_auth_out.header.status);
return -EIO;
}
return 0;
}
int
intel_hdcp_gsc_close_session(struct device *dev, struct hdcp_port_data *data)
{
struct wired_cmd_close_session_in session_close_in = { { 0 } };
struct wired_cmd_close_session_out session_close_out = { { 0 } };
struct drm_i915_private *i915;
ssize_t byte;
if (!dev || !data)
return -EINVAL;
i915 = kdev_to_i915(dev);
if (!i915) {
dev_err(dev, "DRM not initialized, aborting HDCP.\n");
return -ENODEV;
}
session_close_in.header.api_version = HDCP_API_VERSION;
session_close_in.header.command_id = WIRED_CLOSE_SESSION;
session_close_in.header.status = FW_HDCP_STATUS_SUCCESS;
session_close_in.header.buffer_len =
WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN;
session_close_in.port.integrated_port_type = data->port_type;
session_close_in.port.physical_port = (u8)data->hdcp_ddi;
session_close_in.port.attached_transcoder = (u8)data->hdcp_transcoder;
byte = intel_hdcp_gsc_msg_send(i915, (u8 *)&session_close_in,
sizeof(session_close_in),
(u8 *)&session_close_out,
sizeof(session_close_out));
if (byte < 0) {
drm_dbg_kms(&i915->drm, "intel_hdcp_gsc_msg_send failed. %zd\n", byte);
return byte;
}
if (session_close_out.header.status != FW_HDCP_STATUS_SUCCESS) {
drm_dbg_kms(&i915->drm, "Session Close Failed. status: 0x%X\n",
session_close_out.header.status);
return -EIO;
}
return 0;
}
|