1/* SPDX-License-Identifier: MIT */ 2/* 3 * Copyright �� 2023 Intel Corporation 4 */ 5 6#ifndef __INTEL_DP_AUX_REGS_H__ 7#define __INTEL_DP_AUX_REGS_H__ 8 9#include "intel_display_reg_defs.h" 10 11/* 12 * The aux channel provides a way to talk to the signal sink for DDC etc. Max 13 * packet size supported is 20 bytes in each direction, hence the 5 fixed data 14 * registers 15 */ 16 17/* 18 * Wrapper macro to convert from aux_ch to the index used in some of the 19 * registers. 20 */ 21#define __xe2lpd_aux_ch_idx(aux_ch) \ 22 (aux_ch >= AUX_CH_USBC1 ? aux_ch : AUX_CH_USBC4 + 1 + (aux_ch) - AUX_CH_A) 23 24#define _DPA_AUX_CH_CTL 0x64010 25#define _DPB_AUX_CH_CTL 0x64110 26#define _XELPDP_USBC1_AUX_CH_CTL 0x16f210 27#define _XELPDP_USBC2_AUX_CH_CTL 0x16f410 28#define DP_AUX_CH_CTL(aux_ch) _MMIO_PORT(aux_ch, _DPA_AUX_CH_CTL, \ 29 _DPB_AUX_CH_CTL) 30#define VLV_DP_AUX_CH_CTL(aux_ch) _MMIO(VLV_DISPLAY_BASE + \ 31 _PORT(aux_ch, _DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL)) 32#define _XELPDP_DP_AUX_CH_CTL(aux_ch) \ 33 _MMIO(_PICK_EVEN_2RANGES(aux_ch, AUX_CH_USBC1, \ 34 _DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL, \ 35 _XELPDP_USBC1_AUX_CH_CTL, \ 36 _XELPDP_USBC2_AUX_CH_CTL)) 37#define XELPDP_DP_AUX_CH_CTL(i915__, aux_ch) \ 38 (DISPLAY_VER(i915__) >= 20 ? \ 39 _XELPDP_DP_AUX_CH_CTL(__xe2lpd_aux_ch_idx(aux_ch)) : \ 40 _XELPDP_DP_AUX_CH_CTL(aux_ch)) 41#define DP_AUX_CH_CTL_SEND_BUSY REG_BIT(31) 42#define DP_AUX_CH_CTL_DONE REG_BIT(30) 43#define DP_AUX_CH_CTL_INTERRUPT REG_BIT(29) 44#define DP_AUX_CH_CTL_TIME_OUT_ERROR REG_BIT(28) 45#define DP_AUX_CH_CTL_TIME_OUT_MASK REG_GENMASK(27, 26) 46#define DP_AUX_CH_CTL_TIME_OUT_400us REG_FIELD_PREP(DP_AUX_CH_CTL_TIME_OUT_MASK, 0) 47#define DP_AUX_CH_CTL_TIME_OUT_600us REG_FIELD_PREP(DP_AUX_CH_CTL_TIME_OUT_MASK, 1) 48#define DP_AUX_CH_CTL_TIME_OUT_800us REG_FIELD_PREP(DP_AUX_CH_CTL_TIME_OUT_MASK, 2) 49#define DP_AUX_CH_CTL_TIME_OUT_MAX REG_FIELD_PREP(DP_AUX_CH_CTL_TIME_OUT_MASK, 3) /* Varies per platform */ 50#define DP_AUX_CH_CTL_RECEIVE_ERROR REG_BIT(25) 51#define DP_AUX_CH_CTL_MESSAGE_SIZE_MASK REG_GENMASK(24, 20) 52#define DP_AUX_CH_CTL_MESSAGE_SIZE(x) REG_FIELD_PREP(DP_AUX_CH_CTL_MESSAGE_SIZE_MASK, (x)) 53#define DP_AUX_CH_CTL_PRECHARGE_2US_MASK REG_GENMASK(19, 16) /* pre-skl */ 54#define DP_AUX_CH_CTL_PRECHARGE_2US(x) REG_FIELD_PREP(DP_AUX_CH_CTL_PRECHARGE_2US_MASK, (x)) 55#define XELPDP_DP_AUX_CH_CTL_POWER_REQUEST REG_BIT(19) /* mtl+ */ 56#define XELPDP_DP_AUX_CH_CTL_POWER_STATUS REG_BIT(18) /* mtl+ */ 57#define DP_AUX_CH_CTL_AUX_AKSV_SELECT REG_BIT(15) 58#define DP_AUX_CH_CTL_MANCHESTER_TEST REG_BIT(14) /* pre-hsw */ 59#define DP_AUX_CH_CTL_PSR_DATA_AUX_REG_SKL REG_BIT(14) /* skl+ */ 60#define DP_AUX_CH_CTL_SYNC_TEST REG_BIT(13) /* pre-hsw */ 61#define DP_AUX_CH_CTL_FS_DATA_AUX_REG_SKL REG_BIT(13) /* skl+ */ 62#define DP_AUX_CH_CTL_DEGLITCH_TEST REG_BIT(12) /* pre-hsw */ 63#define DP_AUX_CH_CTL_GTC_DATA_AUX_REG_SKL REG_BIT(12) /* skl+ */ 64#define DP_AUX_CH_CTL_PRECHARGE_TEST REG_BIT(11) /* pre-hsw */ 65#define DP_AUX_CH_CTL_TBT_IO REG_BIT(11) /* icl+ */ 66#define DP_AUX_CH_CTL_BIT_CLOCK_2X_MASK REG_GENMASK(10, 0) /* pre-skl */ 67#define DP_AUX_CH_CTL_BIT_CLOCK_2X(x) REG_FIELD_PREP(DP_AUX_CH_CTL_BIT_CLOCK_2X_MASK, (x)) 68#define DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL_MASK REG_GENMASK(9, 5) /* skl+ */ 69#define DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(c) REG_FIELD_PREP(DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL_MASK, (c) - 1) 70#define DP_AUX_CH_CTL_SYNC_PULSE_SKL_MASK REG_GENMASK(4, 0) /* skl+ */ 71#define DP_AUX_CH_CTL_SYNC_PULSE_SKL(c) REG_FIELD_PREP(DP_AUX_CH_CTL_SYNC_PULSE_SKL_MASK, (c) - 1) 72 73#define _DPA_AUX_CH_DATA1 0x64014 74#define _DPB_AUX_CH_DATA1 0x64114 75#define _XELPDP_USBC1_AUX_CH_DATA1 0x16f214 76#define _XELPDP_USBC2_AUX_CH_DATA1 0x16f414 77#define DP_AUX_CH_DATA(aux_ch, i) _MMIO(_PORT(aux_ch, _DPA_AUX_CH_DATA1, \ 78 _DPB_AUX_CH_DATA1) + (i) * 4) /* 5 registers */ 79#define VLV_DP_AUX_CH_DATA(aux_ch, i) _MMIO(VLV_DISPLAY_BASE + _PORT(aux_ch, _DPA_AUX_CH_DATA1, \ 80 _DPB_AUX_CH_DATA1) + (i) * 4) /* 5 registers */ 81#define _XELPDP_DP_AUX_CH_DATA(aux_ch, i) \ 82 _MMIO(_PICK_EVEN_2RANGES(aux_ch, AUX_CH_USBC1, \ 83 _DPA_AUX_CH_DATA1, _DPB_AUX_CH_DATA1, \ 84 _XELPDP_USBC1_AUX_CH_DATA1, \ 85 _XELPDP_USBC2_AUX_CH_DATA1) + (i) * 4) /* 5 registers */ 86#define XELPDP_DP_AUX_CH_DATA(i915__, aux_ch, i) \ 87 (DISPLAY_VER(i915__) >= 20 ? \ 88 _XELPDP_DP_AUX_CH_DATA(__xe2lpd_aux_ch_idx(aux_ch), i) : \ 89 _XELPDP_DP_AUX_CH_DATA(aux_ch, i)) 90 91/* PICA Power Well Control */ 92#define XE2LPD_PICA_PW_CTL _MMIO(0x16fe04) 93#define XE2LPD_PICA_CTL_POWER_REQUEST REG_BIT(31) 94#define XE2LPD_PICA_CTL_POWER_STATUS REG_BIT(30) 95 96#endif /* __INTEL_DP_AUX_REGS_H__ */ 97