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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2023 Intel Corporation
*/
#ifndef __INTEL_DP_AUX_REGS_H__
#define __INTEL_DP_AUX_REGS_H__
#include "intel_display_reg_defs.h"
/*
* The aux channel provides a way to talk to the signal sink for DDC etc. Max
* packet size supported is 20 bytes in each direction, hence the 5 fixed data
* registers
*/
/*
* Wrapper macro to convert from aux_ch to the index used in some of the
* registers.
*/
#define __xe2lpd_aux_ch_idx(aux_ch) \
(aux_ch >= AUX_CH_USBC1 ? aux_ch : AUX_CH_USBC4 + 1 + (aux_ch) - AUX_CH_A)
/* TODO: Remove implicit dev_priv */
#define _DPA_AUX_CH_CTL (DISPLAY_MMIO_BASE(dev_priv) + 0x64010)
#define _DPB_AUX_CH_CTL (DISPLAY_MMIO_BASE(dev_priv) + 0x64110)
#define _XELPDP_USBC1_AUX_CH_CTL 0x16f210
#define _XELPDP_USBC2_AUX_CH_CTL 0x16f410
#define DP_AUX_CH_CTL(aux_ch) _MMIO_PORT(aux_ch, _DPA_AUX_CH_CTL, \
_DPB_AUX_CH_CTL)
#define _XELPDP_DP_AUX_CH_CTL(aux_ch) \
_MMIO(_PICK_EVEN_2RANGES(aux_ch, AUX_CH_USBC1, \
_DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL, \
_XELPDP_USBC1_AUX_CH_CTL, \
_XELPDP_USBC2_AUX_CH_CTL))
#define XELPDP_DP_AUX_CH_CTL(i915__, aux_ch) \
(DISPLAY_VER(i915__) >= 20 ? \
_XELPDP_DP_AUX_CH_CTL(__xe2lpd_aux_ch_idx(aux_ch)) : \
_XELPDP_DP_AUX_CH_CTL(aux_ch))
#define DP_AUX_CH_CTL_SEND_BUSY REG_BIT(31)
#define DP_AUX_CH_CTL_DONE REG_BIT(30)
#define DP_AUX_CH_CTL_INTERRUPT REG_BIT(29)
#define DP_AUX_CH_CTL_TIME_OUT_ERROR REG_BIT(28)
#define DP_AUX_CH_CTL_TIME_OUT_MASK REG_GENMASK(27, 26)
#define DP_AUX_CH_CTL_TIME_OUT_400us REG_FIELD_PREP(DP_AUX_CH_CTL_TIME_OUT_MASK, 0)
#define DP_AUX_CH_CTL_TIME_OUT_600us REG_FIELD_PREP(DP_AUX_CH_CTL_TIME_OUT_MASK, 1)
#define DP_AUX_CH_CTL_TIME_OUT_800us REG_FIELD_PREP(DP_AUX_CH_CTL_TIME_OUT_MASK, 2)
#define DP_AUX_CH_CTL_TIME_OUT_MAX REG_FIELD_PREP(DP_AUX_CH_CTL_TIME_OUT_MASK, 3) /* Varies per platform */
#define DP_AUX_CH_CTL_RECEIVE_ERROR REG_BIT(25)
#define DP_AUX_CH_CTL_MESSAGE_SIZE_MASK REG_GENMASK(24, 20)
#define DP_AUX_CH_CTL_MESSAGE_SIZE(x) REG_FIELD_PREP(DP_AUX_CH_CTL_MESSAGE_SIZE_MASK, (x))
#define DP_AUX_CH_CTL_PRECHARGE_2US_MASK REG_GENMASK(19, 16) /* pre-skl */
#define DP_AUX_CH_CTL_PRECHARGE_2US(x) REG_FIELD_PREP(DP_AUX_CH_CTL_PRECHARGE_2US_MASK, (x))
#define XELPDP_DP_AUX_CH_CTL_POWER_REQUEST REG_BIT(19) /* mtl+ */
#define XELPDP_DP_AUX_CH_CTL_POWER_STATUS REG_BIT(18) /* mtl+ */
#define DP_AUX_CH_CTL_AUX_AKSV_SELECT REG_BIT(15)
#define DP_AUX_CH_CTL_MANCHESTER_TEST REG_BIT(14) /* pre-hsw */
#define DP_AUX_CH_CTL_PSR_DATA_AUX_REG_SKL REG_BIT(14) /* skl+ */
#define DP_AUX_CH_CTL_SYNC_TEST REG_BIT(13) /* pre-hsw */
#define DP_AUX_CH_CTL_FS_DATA_AUX_REG_SKL REG_BIT(13) /* skl+ */
#define DP_AUX_CH_CTL_DEGLITCH_TEST REG_BIT(12) /* pre-hsw */
#define DP_AUX_CH_CTL_GTC_DATA_AUX_REG_SKL REG_BIT(12) /* skl+ */
#define DP_AUX_CH_CTL_PRECHARGE_TEST REG_BIT(11) /* pre-hsw */
#define DP_AUX_CH_CTL_TBT_IO REG_BIT(11) /* icl+ */
#define DP_AUX_CH_CTL_BIT_CLOCK_2X_MASK REG_GENMASK(10, 0) /* pre-skl */
#define DP_AUX_CH_CTL_BIT_CLOCK_2X(x) REG_FIELD_PREP(DP_AUX_CH_CTL_BIT_CLOCK_2X_MASK, (x))
#define DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL_MASK REG_GENMASK(9, 5) /* skl+ */
#define DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(c) REG_FIELD_PREP(DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL_MASK, (c) - 1)
#define DP_AUX_CH_CTL_SYNC_PULSE_SKL_MASK REG_GENMASK(4, 0) /* skl+ */
#define DP_AUX_CH_CTL_SYNC_PULSE_SKL(c) REG_FIELD_PREP(DP_AUX_CH_CTL_SYNC_PULSE_SKL_MASK, (c) - 1)
/* TODO: Remove implicit dev_priv */
#define _DPA_AUX_CH_DATA1 (DISPLAY_MMIO_BASE(dev_priv) + 0x64014)
#define _DPB_AUX_CH_DATA1 (DISPLAY_MMIO_BASE(dev_priv) + 0x64114)
#define _XELPDP_USBC1_AUX_CH_DATA1 0x16f214
#define _XELPDP_USBC2_AUX_CH_DATA1 0x16f414
#define DP_AUX_CH_DATA(aux_ch, i) _MMIO(_PORT(aux_ch, _DPA_AUX_CH_DATA1, \
_DPB_AUX_CH_DATA1) + (i) * 4) /* 5 registers */
#define _XELPDP_DP_AUX_CH_DATA(aux_ch, i) \
_MMIO(_PICK_EVEN_2RANGES(aux_ch, AUX_CH_USBC1, \
_DPA_AUX_CH_DATA1, _DPB_AUX_CH_DATA1, \
_XELPDP_USBC1_AUX_CH_DATA1, \
_XELPDP_USBC2_AUX_CH_DATA1) + (i) * 4) /* 5 registers */
#define XELPDP_DP_AUX_CH_DATA(i915__, aux_ch, i) \
(DISPLAY_VER(i915__) >= 20 ? \
_XELPDP_DP_AUX_CH_DATA(__xe2lpd_aux_ch_idx(aux_ch), i) : \
_XELPDP_DP_AUX_CH_DATA(aux_ch, i))
/* PICA Power Well Control */
#define XE2LPD_PICA_PW_CTL _MMIO(0x16fe04)
#define XE2LPD_PICA_CTL_POWER_REQUEST REG_BIT(31)
#define XE2LPD_PICA_CTL_POWER_STATUS REG_BIT(30)
#endif /* __INTEL_DP_AUX_REGS_H__ */
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