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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 a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: AMD23 *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->logger34 35#define REG(reg)\36 (apg31->regs->reg)37 38#undef FN39#define FN(reg_name, field_name) \40 apg31->apg_shift->field_name, apg31->apg_mask->field_name41 42 43#define CTX \44 apg31->base.ctx45 46 47static 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 66static 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 75static 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 enable91 * 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 98static 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 104void 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