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 | |
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 | |
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 | |
75 | static void apg31_se_audio_setup( |
76 | struct apg *apg, |
77 | unsigned int az_inst, |
78 | struct audio_info *audio_info) |
79 | { |
80 | struct dcn31_apg *apg31 = DCN31_APG_FROM_APG(apg); |
81 | |
82 | ASSERT(audio_info); |
83 | /* This should not happen.it does so we don't get BSOD*/ |
84 | if (audio_info == NULL) |
85 | return; |
86 | |
87 | /* DisplayPort only allows for one audio stream with stream ID 0 */ |
88 | REG_UPDATE(APG_CONTROL2, APG_DP_AUDIO_STREAM_ID, 0); |
89 | |
90 | /* When running in "pair mode", pairs of audio channels have their own enable |
91 | * this is for really old audio drivers */ |
92 | REG_UPDATE(APG_DBG_GEN_CONTROL, APG_DBG_AUDIO_CHANNEL_ENABLE, 0xFF); |
93 | |
94 | /* Disable forced mem power off */ |
95 | REG_UPDATE(APG_MEM_PWR, APG_MEM_PWR_FORCE, 0); |
96 | } |
97 | |
98 | static struct apg_funcs dcn31_apg_funcs = { |
99 | .se_audio_setup = apg31_se_audio_setup, |
100 | .enable_apg = apg31_enable, |
101 | .disable_apg = apg31_disable, |
102 | }; |
103 | |
104 | void apg31_construct(struct dcn31_apg *apg31, |
105 | struct dc_context *ctx, |
106 | uint32_t inst, |
107 | const struct dcn31_apg_registers *apg_regs, |
108 | const struct dcn31_apg_shift *apg_shift, |
109 | const struct dcn31_apg_mask *apg_mask) |
110 | { |
111 | apg31->base.ctx = ctx; |
112 | |
113 | apg31->base.inst = inst; |
114 | apg31->base.funcs = &dcn31_apg_funcs; |
115 | |
116 | apg31->regs = apg_regs; |
117 | apg31->apg_shift = apg_shift; |
118 | apg31->apg_mask = apg_mask; |
119 | } |
120 | |