1 /*
2  * Copyright 2019 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_LOG_H_
27 #define MOD_HDCP_LOG_H_
28 
29 #ifdef CONFIG_DRM_AMD_DC_HDCP
30 #define HDCP_LOG_ERR(hdcp, ...) DRM_DEBUG_KMS(__VA_ARGS__)
31 #define HDCP_LOG_VER(hdcp, ...) DRM_DEBUG_KMS(__VA_ARGS__)
32 #define HDCP_LOG_FSM(hdcp, ...) DRM_DEBUG_KMS(__VA_ARGS__)
33 #define HDCP_LOG_TOP(hdcp, ...) pr_debug("[HDCP_TOP]:"__VA_ARGS__)
34 #define HDCP_LOG_DDC(hdcp, ...) pr_debug("[HDCP_DDC]:"__VA_ARGS__)
35 #endif
36 
37 /* default logs */
38 #define HDCP_ERROR_TRACE(hdcp, status) \
39 		HDCP_LOG_ERR(hdcp, \
40 			"[Link %d] WARNING %s IN STATE %s STAY COUNT %d", \
41 			hdcp->config.index, \
42 			mod_hdcp_status_to_str(status), \
43 			mod_hdcp_state_id_to_str(hdcp->state.id), \
44 			hdcp->state.stay_count)
45 #define HDCP_HDCP1_ENABLED_TRACE(hdcp, displayIndex) \
46 		HDCP_LOG_VER(hdcp, \
47 			"[Link %d] HDCP 1.4 enabled on display %d", \
48 			hdcp->config.index, displayIndex)
49 #define HDCP_HDCP2_ENABLED_TRACE(hdcp, displayIndex) \
50 		HDCP_LOG_VER(hdcp, \
51 			"[Link %d] HDCP 2.2 enabled on display %d", \
52 			hdcp->config.index, displayIndex)
53 #define HDCP_HDCP1_DISABLED_TRACE(hdcp, displayIndex) \
54 		HDCP_LOG_VER(hdcp, \
55 			"[Link %d] HDCP 1.4 disabled on display %d", \
56 			hdcp->config.index, displayIndex)
57 #define HDCP_HDCP2_DISABLED_TRACE(hdcp, displayIndex) \
58 		HDCP_LOG_VER(hdcp, \
59 			"[Link %d] HDCP 2.2 disabled on display %d", \
60 			hdcp->config.index, displayIndex)
61 
62 /* state machine logs */
63 #define HDCP_REMOVE_DISPLAY_TRACE(hdcp, displayIndex) \
64 		HDCP_LOG_FSM(hdcp, \
65 			"[Link %d] HDCP_REMOVE_DISPLAY index %d", \
66 			hdcp->config.index, displayIndex)
67 #define HDCP_INPUT_PASS_TRACE(hdcp, str) \
68 		HDCP_LOG_FSM(hdcp, \
69 			"[Link %d]\tPASS %s", \
70 			hdcp->config.index, str)
71 #define HDCP_INPUT_FAIL_TRACE(hdcp, str) \
72 		HDCP_LOG_FSM(hdcp, \
73 			"[Link %d]\tFAIL %s", \
74 			hdcp->config.index, str)
75 #define HDCP_NEXT_STATE_TRACE(hdcp, id, output) do { \
76 		if (output->watchdog_timer_needed) \
77 			HDCP_LOG_FSM(hdcp, \
78 				"[Link %d] > %s with %d ms watchdog", \
79 				hdcp->config.index, \
80 				mod_hdcp_state_id_to_str(id), output->watchdog_timer_delay); \
81 		else \
82 			HDCP_LOG_FSM(hdcp, \
83 				"[Link %d] > %s", hdcp->config.index, \
84 				mod_hdcp_state_id_to_str(id)); \
85 } while (0)
86 #define HDCP_TIMEOUT_TRACE(hdcp) \
87 		HDCP_LOG_FSM(hdcp, "[Link %d] --> TIMEOUT", hdcp->config.index)
88 #define HDCP_CPIRQ_TRACE(hdcp) \
89 		HDCP_LOG_FSM(hdcp, "[Link %d] --> CPIRQ", hdcp->config.index)
90 #define HDCP_EVENT_TRACE(hdcp, event) \
91 		if (event == MOD_HDCP_EVENT_WATCHDOG_TIMEOUT) \
92 			HDCP_TIMEOUT_TRACE(hdcp); \
93 		else if (event == MOD_HDCP_EVENT_CPIRQ) \
94 			HDCP_CPIRQ_TRACE(hdcp)
95 /* TODO: find some way to tell if logging is off to save time */
96 #define HDCP_DDC_READ_TRACE(hdcp, msg_name, msg, msg_size) do { \
97 		mod_hdcp_dump_binary_message(msg, msg_size, hdcp->buf, \
98 				sizeof(hdcp->buf)); \
99 		HDCP_LOG_DDC(hdcp, "[Link %d] Read %s%s", hdcp->config.index, \
100 				msg_name, hdcp->buf); \
101 } while (0)
102 #define HDCP_DDC_WRITE_TRACE(hdcp, msg_name, msg, msg_size) do { \
103 		mod_hdcp_dump_binary_message(msg, msg_size, hdcp->buf, \
104 				sizeof(hdcp->buf)); \
105 		HDCP_LOG_DDC(hdcp, "[Link %d] Write %s%s", \
106 				hdcp->config.index, msg_name,\
107 				hdcp->buf); \
108 } while (0)
109 #define HDCP_FULL_DDC_TRACE(hdcp) do { \
110 	if (is_hdcp1(hdcp)) { \
111 		HDCP_DDC_READ_TRACE(hdcp, "BKSV", hdcp->auth.msg.hdcp1.bksv, \
112 				sizeof(hdcp->auth.msg.hdcp1.bksv)); \
113 		HDCP_DDC_READ_TRACE(hdcp, "BCAPS", &hdcp->auth.msg.hdcp1.bcaps, \
114 				sizeof(hdcp->auth.msg.hdcp1.bcaps)); \
115 		HDCP_DDC_READ_TRACE(hdcp, "BSTATUS", \
116 				(uint8_t *)&hdcp->auth.msg.hdcp1.bstatus, \
117 				sizeof(hdcp->auth.msg.hdcp1.bstatus)); \
118 		HDCP_DDC_WRITE_TRACE(hdcp, "AN", hdcp->auth.msg.hdcp1.an, \
119 				sizeof(hdcp->auth.msg.hdcp1.an)); \
120 		HDCP_DDC_WRITE_TRACE(hdcp, "AKSV", hdcp->auth.msg.hdcp1.aksv, \
121 				sizeof(hdcp->auth.msg.hdcp1.aksv)); \
122 		HDCP_DDC_WRITE_TRACE(hdcp, "AINFO", &hdcp->auth.msg.hdcp1.ainfo, \
123 				sizeof(hdcp->auth.msg.hdcp1.ainfo)); \
124 		HDCP_DDC_READ_TRACE(hdcp, "RI' / R0'", \
125 				(uint8_t *)&hdcp->auth.msg.hdcp1.r0p, \
126 				sizeof(hdcp->auth.msg.hdcp1.r0p)); \
127 		HDCP_DDC_READ_TRACE(hdcp, "BINFO", \
128 				(uint8_t *)&hdcp->auth.msg.hdcp1.binfo_dp, \
129 				sizeof(hdcp->auth.msg.hdcp1.binfo_dp)); \
130 		HDCP_DDC_READ_TRACE(hdcp, "KSVLIST", hdcp->auth.msg.hdcp1.ksvlist, \
131 				hdcp->auth.msg.hdcp1.ksvlist_size); \
132 		HDCP_DDC_READ_TRACE(hdcp, "V'", hdcp->auth.msg.hdcp1.vp, \
133 				sizeof(hdcp->auth.msg.hdcp1.vp)); \
134 	} else { \
135 		HDCP_DDC_READ_TRACE(hdcp, "HDCP2Version", \
136 				&hdcp->auth.msg.hdcp2.hdcp2version_hdmi, \
137 				sizeof(hdcp->auth.msg.hdcp2.hdcp2version_hdmi)); \
138 		HDCP_DDC_READ_TRACE(hdcp, "Rx Caps", hdcp->auth.msg.hdcp2.rxcaps_dp, \
139 				sizeof(hdcp->auth.msg.hdcp2.rxcaps_dp)); \
140 		HDCP_DDC_WRITE_TRACE(hdcp, "AKE Init", hdcp->auth.msg.hdcp2.ake_init, \
141 				sizeof(hdcp->auth.msg.hdcp2.ake_init)); \
142 		HDCP_DDC_READ_TRACE(hdcp, "AKE Cert", hdcp->auth.msg.hdcp2.ake_cert, \
143 				sizeof(hdcp->auth.msg.hdcp2.ake_cert)); \
144 		HDCP_DDC_WRITE_TRACE(hdcp, "Stored KM", \
145 				hdcp->auth.msg.hdcp2.ake_stored_km, \
146 				sizeof(hdcp->auth.msg.hdcp2.ake_stored_km)); \
147 		HDCP_DDC_WRITE_TRACE(hdcp, "No Stored KM", \
148 				hdcp->auth.msg.hdcp2.ake_no_stored_km, \
149 				sizeof(hdcp->auth.msg.hdcp2.ake_no_stored_km)); \
150 		HDCP_DDC_READ_TRACE(hdcp, "H'", hdcp->auth.msg.hdcp2.ake_h_prime, \
151 				sizeof(hdcp->auth.msg.hdcp2.ake_h_prime)); \
152 		HDCP_DDC_READ_TRACE(hdcp, "Pairing Info", \
153 				hdcp->auth.msg.hdcp2.ake_pairing_info, \
154 				sizeof(hdcp->auth.msg.hdcp2.ake_pairing_info)); \
155 		HDCP_DDC_WRITE_TRACE(hdcp, "LC Init", hdcp->auth.msg.hdcp2.lc_init, \
156 				sizeof(hdcp->auth.msg.hdcp2.lc_init)); \
157 		HDCP_DDC_READ_TRACE(hdcp, "L'", hdcp->auth.msg.hdcp2.lc_l_prime, \
158 				sizeof(hdcp->auth.msg.hdcp2.lc_l_prime)); \
159 		HDCP_DDC_WRITE_TRACE(hdcp, "Exchange KS", hdcp->auth.msg.hdcp2.ske_eks, \
160 				sizeof(hdcp->auth.msg.hdcp2.ske_eks)); \
161 		HDCP_DDC_READ_TRACE(hdcp, "Rx Status", \
162 				(uint8_t *)&hdcp->auth.msg.hdcp2.rxstatus, \
163 				sizeof(hdcp->auth.msg.hdcp2.rxstatus)); \
164 		HDCP_DDC_READ_TRACE(hdcp, "Rx Id List", \
165 				hdcp->auth.msg.hdcp2.rx_id_list, \
166 				hdcp->auth.msg.hdcp2.rx_id_list_size); \
167 		HDCP_DDC_WRITE_TRACE(hdcp, "Rx Id List Ack", \
168 				hdcp->auth.msg.hdcp2.repeater_auth_ack, \
169 				sizeof(hdcp->auth.msg.hdcp2.repeater_auth_ack)); \
170 		HDCP_DDC_WRITE_TRACE(hdcp, "Content Stream Management", \
171 				hdcp->auth.msg.hdcp2.repeater_auth_stream_manage, \
172 				hdcp->auth.msg.hdcp2.stream_manage_size); \
173 		HDCP_DDC_READ_TRACE(hdcp, "Stream Ready", \
174 				hdcp->auth.msg.hdcp2.repeater_auth_stream_ready, \
175 				sizeof(hdcp->auth.msg.hdcp2.repeater_auth_stream_ready)); \
176 		HDCP_DDC_WRITE_TRACE(hdcp, "Content Stream Type", \
177 				hdcp->auth.msg.hdcp2.content_stream_type_dp, \
178 				sizeof(hdcp->auth.msg.hdcp2.content_stream_type_dp)); \
179 	} \
180 } while (0)
181 #define HDCP_TOP_ADD_DISPLAY_TRACE(hdcp, i) \
182 		HDCP_LOG_TOP(hdcp, "[Link %d]\tadd display %d", \
183 				hdcp->config.index, i)
184 #define HDCP_TOP_REMOVE_DISPLAY_TRACE(hdcp, i) \
185 		HDCP_LOG_TOP(hdcp, "[Link %d]\tremove display %d", \
186 				hdcp->config.index, i)
187 #define HDCP_TOP_HDCP1_DESTROY_SESSION_TRACE(hdcp) \
188 		HDCP_LOG_TOP(hdcp, "[Link %d]\tdestroy hdcp1 session", \
189 				hdcp->config.index)
190 #define HDCP_TOP_HDCP2_DESTROY_SESSION_TRACE(hdcp) \
191 		HDCP_LOG_TOP(hdcp, "[Link %d]\tdestroy hdcp2 session", \
192 				hdcp->config.index)
193 #define HDCP_TOP_RESET_AUTH_TRACE(hdcp) \
194 		HDCP_LOG_TOP(hdcp, "[Link %d]\treset authentication", hdcp->config.index)
195 #define HDCP_TOP_RESET_CONN_TRACE(hdcp) \
196 		HDCP_LOG_TOP(hdcp, "[Link %d]\treset connection", hdcp->config.index)
197 #define HDCP_TOP_INTERFACE_TRACE(hdcp) do { \
198 		HDCP_LOG_TOP(hdcp, "\n"); \
199 		HDCP_LOG_TOP(hdcp, "[Link %d] %s", hdcp->config.index, __func__); \
200 } while (0)
201 #define HDCP_TOP_INTERFACE_TRACE_WITH_INDEX(hdcp, i) do { \
202 		HDCP_LOG_TOP(hdcp, "\n"); \
203 		HDCP_LOG_TOP(hdcp, "[Link %d] %s display %d", hdcp->config.index, __func__, i); \
204 } while (0)
205 
206 #endif // MOD_HDCP_LOG_H_
207