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
27 #include "dc_bios_types.h"
28 #include "hw_shared.h"
29 #include "dcn31_apg.h"
30 #include "reg_helper.h"
31
32 #define DC_LOGGER \
33 apg31->base.ctx->logger
34
35 #define REG(reg)\
36 (apg31->regs->reg)
37
38 #undef FN
39 #define FN(reg_name, field_name) \
40 apg31->apg_shift->field_name, apg31->apg_mask->field_name
41
42
43 #define CTX \
44 apg31->base.ctx
45
46
apg31_enable(struct apg * apg)47 static void apg31_enable(
48 struct apg *apg)
49 {
50 struct dcn31_apg *apg31 = DCN31_APG_FROM_APG(apg);
51
52 /* Reset APG */
53 REG_UPDATE(APG_CONTROL, APG_RESET, 1);
54 REG_WAIT(APG_CONTROL,
55 APG_RESET_DONE, 1,
56 1, 10);
57 REG_UPDATE(APG_CONTROL, APG_RESET, 0);
58 REG_WAIT(APG_CONTROL,
59 APG_RESET_DONE, 0,
60 1, 10);
61
62 /* Enable APG */
63 REG_UPDATE(APG_CONTROL2, APG_ENABLE, 1);
64 }
65
apg31_disable(struct apg * apg)66 static void apg31_disable(
67 struct apg *apg)
68 {
69 struct dcn31_apg *apg31 = DCN31_APG_FROM_APG(apg);
70
71 /* Disable APG */
72 REG_UPDATE(APG_CONTROL2, APG_ENABLE, 0);
73 }
74
speakers_to_channels(struct audio_speaker_flags speaker_flags)75 static union audio_cea_channels speakers_to_channels(
76 struct audio_speaker_flags speaker_flags)
77 {
78 union audio_cea_channels cea_channels = {0};
79
80 /* these are one to one */
81 cea_channels.channels.FL = speaker_flags.FL_FR;
82 cea_channels.channels.FR = speaker_flags.FL_FR;
83 cea_channels.channels.LFE = speaker_flags.LFE;
84 cea_channels.channels.FC = speaker_flags.FC;
85
86 /* if Rear Left and Right exist move RC speaker to channel 7
87 * otherwise to channel 5
88 */
89 if (speaker_flags.RL_RR) {
90 cea_channels.channels.RL_RC = speaker_flags.RL_RR;
91 cea_channels.channels.RR = speaker_flags.RL_RR;
92 cea_channels.channels.RC_RLC_FLC = speaker_flags.RC;
93 } else {
94 cea_channels.channels.RL_RC = speaker_flags.RC;
95 }
96
97 /* FRONT Left Right Center and REAR Left Right Center are exclusive */
98 if (speaker_flags.FLC_FRC) {
99 cea_channels.channels.RC_RLC_FLC = speaker_flags.FLC_FRC;
100 cea_channels.channels.RRC_FRC = speaker_flags.FLC_FRC;
101 } else {
102 cea_channels.channels.RC_RLC_FLC = speaker_flags.RLC_RRC;
103 cea_channels.channels.RRC_FRC = speaker_flags.RLC_RRC;
104 }
105
106 return cea_channels;
107 }
108
apg31_se_audio_setup(struct apg * apg,unsigned int az_inst,struct audio_info * audio_info)109 static void apg31_se_audio_setup(
110 struct apg *apg,
111 unsigned int az_inst,
112 struct audio_info *audio_info)
113 {
114 struct dcn31_apg *apg31 = DCN31_APG_FROM_APG(apg);
115
116 uint32_t speakers = 0;
117 uint32_t channels = 0;
118
119 ASSERT(audio_info);
120 /* This should not happen.it does so we don't get BSOD*/
121 if (audio_info == NULL)
122 return;
123
124 speakers = audio_info->flags.info.ALLSPEAKERS;
125 channels = speakers_to_channels(audio_info->flags.speaker_flags).all;
126
127 /* DisplayPort only allows for one audio stream with stream ID 0 */
128 REG_UPDATE(APG_CONTROL2, APG_DP_AUDIO_STREAM_ID, 0);
129
130 /* When running in "pair mode", pairs of audio channels have their own enable
131 * this is for really old audio drivers */
132 REG_UPDATE(APG_DBG_GEN_CONTROL, APG_DBG_AUDIO_CHANNEL_ENABLE, 0xFF);
133 // REG_UPDATE(APG_DBG_GEN_CONTROL, APG_DBG_AUDIO_CHANNEL_ENABLE, channels);
134
135 /* Disable forced mem power off */
136 REG_UPDATE(APG_MEM_PWR, APG_MEM_PWR_FORCE, 0);
137 }
138
139 static struct apg_funcs dcn31_apg_funcs = {
140 .se_audio_setup = apg31_se_audio_setup,
141 .enable_apg = apg31_enable,
142 .disable_apg = apg31_disable,
143 };
144
apg31_construct(struct dcn31_apg * apg31,struct dc_context * ctx,uint32_t inst,const struct dcn31_apg_registers * apg_regs,const struct dcn31_apg_shift * apg_shift,const struct dcn31_apg_mask * apg_mask)145 void apg31_construct(struct dcn31_apg *apg31,
146 struct dc_context *ctx,
147 uint32_t inst,
148 const struct dcn31_apg_registers *apg_regs,
149 const struct dcn31_apg_shift *apg_shift,
150 const struct dcn31_apg_mask *apg_mask)
151 {
152 apg31->base.ctx = ctx;
153
154 apg31->base.inst = inst;
155 apg31->base.funcs = &dcn31_apg_funcs;
156
157 apg31->regs = apg_regs;
158 apg31->apg_shift = apg_shift;
159 apg31->apg_mask = apg_mask;
160 }
161