File: | dev/pci/drm/amd/display/dc/dcn31/dcn31_apg.c |
Warning: | line 124, column 2 Value stored to 'speakers' is never read |
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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_LOGGERapg31->base.ctx->logger \ |
33 | apg31->base.ctx->logger |
34 | |
35 | #define REG(reg)(apg31->regs->reg)\ |
36 | (apg31->regs->reg) |
37 | |
38 | #undef FN |
39 | #define FN(reg_name, field_name)apg31->apg_shift->field_name, apg31->apg_mask->field_name \ |
40 | apg31->apg_shift->field_name, apg31->apg_mask->field_name |
41 | |
42 | |
43 | #define CTXapg31->base.ctx \ |
44 | apg31->base.ctx |
45 | |
46 | |
47 | static void apg31_enable( |
48 | struct apg *apg) |
49 | { |
50 | struct dcn31_apg *apg31 = DCN31_APG_FROM_APG(apg)({ const __typeof( ((struct dcn31_apg *)0)->base ) *__mptr = (apg); (struct dcn31_apg *)( (char *)__mptr - __builtin_offsetof (struct dcn31_apg, base) );}); |
51 | |
52 | /* Reset APG */ |
53 | REG_UPDATE(APG_CONTROL, APG_RESET, 1)generic_reg_update_ex(apg31->base.ctx, (apg31->regs-> APG_CONTROL), 1, apg31->apg_shift->APG_RESET, apg31-> apg_mask->APG_RESET, 1); |
54 | REG_WAIT(APG_CONTROL,generic_reg_wait(apg31->base.ctx, (apg31->regs->APG_CONTROL ), apg31->apg_shift->APG_RESET_DONE, apg31->apg_mask ->APG_RESET_DONE, 1, 1, 10, __func__, 56) |
55 | APG_RESET_DONE, 1,generic_reg_wait(apg31->base.ctx, (apg31->regs->APG_CONTROL ), apg31->apg_shift->APG_RESET_DONE, apg31->apg_mask ->APG_RESET_DONE, 1, 1, 10, __func__, 56) |
56 | 1, 10)generic_reg_wait(apg31->base.ctx, (apg31->regs->APG_CONTROL ), apg31->apg_shift->APG_RESET_DONE, apg31->apg_mask ->APG_RESET_DONE, 1, 1, 10, __func__, 56); |
57 | REG_UPDATE(APG_CONTROL, APG_RESET, 0)generic_reg_update_ex(apg31->base.ctx, (apg31->regs-> APG_CONTROL), 1, apg31->apg_shift->APG_RESET, apg31-> apg_mask->APG_RESET, 0); |
58 | REG_WAIT(APG_CONTROL,generic_reg_wait(apg31->base.ctx, (apg31->regs->APG_CONTROL ), apg31->apg_shift->APG_RESET_DONE, apg31->apg_mask ->APG_RESET_DONE, 0, 1, 10, __func__, 60) |
59 | APG_RESET_DONE, 0,generic_reg_wait(apg31->base.ctx, (apg31->regs->APG_CONTROL ), apg31->apg_shift->APG_RESET_DONE, apg31->apg_mask ->APG_RESET_DONE, 0, 1, 10, __func__, 60) |
60 | 1, 10)generic_reg_wait(apg31->base.ctx, (apg31->regs->APG_CONTROL ), apg31->apg_shift->APG_RESET_DONE, apg31->apg_mask ->APG_RESET_DONE, 0, 1, 10, __func__, 60); |
61 | |
62 | /* Enable APG */ |
63 | REG_UPDATE(APG_CONTROL2, APG_ENABLE, 1)generic_reg_update_ex(apg31->base.ctx, (apg31->regs-> APG_CONTROL2), 1, apg31->apg_shift->APG_ENABLE, apg31-> apg_mask->APG_ENABLE, 1); |
64 | } |
65 | |
66 | static void apg31_disable( |
67 | struct apg *apg) |
68 | { |
69 | struct dcn31_apg *apg31 = DCN31_APG_FROM_APG(apg)({ const __typeof( ((struct dcn31_apg *)0)->base ) *__mptr = (apg); (struct dcn31_apg *)( (char *)__mptr - __builtin_offsetof (struct dcn31_apg, base) );}); |
70 | |
71 | /* Disable APG */ |
72 | REG_UPDATE(APG_CONTROL2, APG_ENABLE, 0)generic_reg_update_ex(apg31->base.ctx, (apg31->regs-> APG_CONTROL2), 1, apg31->apg_shift->APG_ENABLE, apg31-> apg_mask->APG_ENABLE, 0); |
73 | } |
74 | |
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 | |
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)({ const __typeof( ((struct dcn31_apg *)0)->base ) *__mptr = (apg); (struct dcn31_apg *)( (char *)__mptr - __builtin_offsetof (struct dcn31_apg, base) );}); |
115 | |
116 | uint32_t speakers = 0; |
117 | uint32_t channels = 0; |
118 | |
119 | ASSERT(audio_info)do { if (({ static int __warned; int __ret = !!(!(audio_info) ); if (__ret && !__warned) { printf("WARNING %s failed at %s:%d\n" , "!(audio_info)", "/usr/src/sys/dev/pci/drm/amd/display/dc/dcn31/dcn31_apg.c" , 119); __warned = 1; } __builtin_expect(!!(__ret), 0); })) do {} while (0); } while (0); |
120 | /* This should not happen.it does so we don't get BSOD*/ |
121 | if (audio_info == NULL((void *)0)) |
122 | return; |
123 | |
124 | speakers = audio_info->flags.info.ALLSPEAKERS; |
Value stored to 'speakers' is never read | |
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)generic_reg_update_ex(apg31->base.ctx, (apg31->regs-> APG_CONTROL2), 1, apg31->apg_shift->APG_DP_AUDIO_STREAM_ID , apg31->apg_mask->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)generic_reg_update_ex(apg31->base.ctx, (apg31->regs-> APG_DBG_GEN_CONTROL), 1, apg31->apg_shift->APG_DBG_AUDIO_CHANNEL_ENABLE , apg31->apg_mask->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)generic_reg_update_ex(apg31->base.ctx, (apg31->regs-> APG_MEM_PWR), 1, apg31->apg_shift->APG_MEM_PWR_FORCE, apg31 ->apg_mask->APG_MEM_PWR_FORCE, 0); |
137 | |
138 | apg31_enable(apg); |
139 | } |
140 | |
141 | static void apg31_audio_mute_control( |
142 | struct apg *apg, |
143 | bool_Bool mute) |
144 | { |
145 | if (mute) |
146 | apg31_disable(apg); |
147 | else |
148 | apg31_enable(apg); |
149 | } |
150 | |
151 | static struct apg_funcs dcn31_apg_funcs = { |
152 | .se_audio_setup = apg31_se_audio_setup, |
153 | .audio_mute_control = apg31_audio_mute_control, |
154 | .enable_apg = apg31_enable, |
155 | .disable_apg = apg31_disable, |
156 | }; |
157 | |
158 | void apg31_construct(struct dcn31_apg *apg31, |
159 | struct dc_context *ctx, |
160 | uint32_t inst, |
161 | const struct dcn31_apg_registers *apg_regs, |
162 | const struct dcn31_apg_shift *apg_shift, |
163 | const struct dcn31_apg_mask *apg_mask) |
164 | { |
165 | apg31->base.ctx = ctx; |
166 | |
167 | apg31->base.inst = inst; |
168 | apg31->base.funcs = &dcn31_apg_funcs; |
169 | |
170 | apg31->regs = apg_regs; |
171 | apg31->apg_shift = apg_shift; |
172 | apg31->apg_mask = apg_mask; |
173 | } |