diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c new file mode 100644 index 000000000000..de5e18c2a3ac --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c @@ -0,0 +1,173 @@ +/* + * Copyright 2019 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ + + +#include "dc_bios_types.h" +#include "hw_shared.h" +#include "dcn31_apg.h" +#include "reg_helper.h" + +#define DC_LOGGER \ + apg31->base.ctx->logger + +#define REG(reg)\ + (apg31->regs->reg) + +#undef FN +#define FN(reg_name, field_name) \ + apg31->apg_shift->field_name, apg31->apg_mask->field_name + + +#define CTX \ + apg31->base.ctx + + +static void apg31_enable( + struct apg *apg) +{ + struct dcn31_apg *apg31 = DCN31_APG_FROM_APG(apg); + + /* Reset APG */ + REG_UPDATE(APG_CONTROL, APG_RESET, 1); + REG_WAIT(APG_CONTROL, + APG_RESET_DONE, 1, + 1, 10); + REG_UPDATE(APG_CONTROL, APG_RESET, 0); + REG_WAIT(APG_CONTROL, + APG_RESET_DONE, 0, + 1, 10); + + /* Enable APG */ + REG_UPDATE(APG_CONTROL2, APG_ENABLE, 1); +} + +static void apg31_disable( + struct apg *apg) +{ + struct dcn31_apg *apg31 = DCN31_APG_FROM_APG(apg); + + /* Disable APG */ + REG_UPDATE(APG_CONTROL2, APG_ENABLE, 0); +} + +static union audio_cea_channels speakers_to_channels( + struct audio_speaker_flags speaker_flags) +{ + union audio_cea_channels cea_channels = {0}; + + /* these are one to one */ + cea_channels.channels.FL = speaker_flags.FL_FR; + cea_channels.channels.FR = speaker_flags.FL_FR; + cea_channels.channels.LFE = speaker_flags.LFE; + cea_channels.channels.FC = speaker_flags.FC; + + /* if Rear Left and Right exist move RC speaker to channel 7 + * otherwise to channel 5 + */ + if (speaker_flags.RL_RR) { + cea_channels.channels.RL_RC = speaker_flags.RL_RR; + cea_channels.channels.RR = speaker_flags.RL_RR; + cea_channels.channels.RC_RLC_FLC = speaker_flags.RC; + } else { + cea_channels.channels.RL_RC = speaker_flags.RC; + } + + /* FRONT Left Right Center and REAR Left Right Center are exclusive */ + if (speaker_flags.FLC_FRC) { + cea_channels.channels.RC_RLC_FLC = speaker_flags.FLC_FRC; + cea_channels.channels.RRC_FRC = speaker_flags.FLC_FRC; + } else { + cea_channels.channels.RC_RLC_FLC = speaker_flags.RLC_RRC; + cea_channels.channels.RRC_FRC = speaker_flags.RLC_RRC; + } + + return cea_channels; +} + +static void apg31_se_audio_setup( + struct apg *apg, + unsigned int az_inst, + struct audio_info *audio_info) +{ + struct dcn31_apg *apg31 = DCN31_APG_FROM_APG(apg); + + uint32_t speakers = 0; + uint32_t channels = 0; + + ASSERT(audio_info); + /* This should not happen.it does so we don't get BSOD*/ + if (audio_info == NULL) + return; + + speakers = audio_info->flags.info.ALLSPEAKERS; + channels = speakers_to_channels(audio_info->flags.speaker_flags).all; + + /* DisplayPort only allows for one audio stream with stream ID 0 */ + REG_UPDATE(APG_CONTROL2, APG_DP_AUDIO_STREAM_ID, 0); + + /* When running in "pair mode", pairs of audio channels have their own enable + * this is for really old audio drivers */ + REG_UPDATE(APG_DBG_GEN_CONTROL, APG_DBG_AUDIO_CHANNEL_ENABLE, 0xFF); + // REG_UPDATE(APG_DBG_GEN_CONTROL, APG_DBG_AUDIO_CHANNEL_ENABLE, channels); + + /* Disable forced mem power off */ + REG_UPDATE(APG_MEM_PWR, APG_MEM_PWR_FORCE, 0); + + apg31_enable(apg); +} + +static void apg31_audio_mute_control( + struct apg *apg, + bool mute) +{ + if (mute) + apg31_disable(apg); + else + apg31_enable(apg); +} + +static struct apg_funcs dcn31_apg_funcs = { + .se_audio_setup = apg31_se_audio_setup, + .audio_mute_control = apg31_audio_mute_control, + .enable_apg = apg31_enable, + .disable_apg = apg31_disable, +}; + +void 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) +{ + apg31->base.ctx = ctx; + + apg31->base.inst = inst; + apg31->base.funcs = &dcn31_apg_funcs; + + apg31->regs = apg_regs; + apg31->apg_shift = apg_shift; + apg31->apg_mask = apg_mask; +} |