/*
* 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 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);
ASSERT(audio_info);
/* This should not happen.it does so we don't get BSOD*/
if (audio_info == NULL)
return ;
/* 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, 0 xFF);
/* Disable forced mem power off */
REG_UPDATE(APG_MEM_PWR, APG_MEM_PWR_FORCE, 0 );
}
static struct apg_funcs dcn31_apg_funcs = {
.se_audio_setup = apg31_se_audio_setup,
.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;
}
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