/* 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 */ #define _DPA_AUX_CH_CTL (DISPLAY_MMIO_BASE(dev_priv) + 0x64010) #define _DPA_AUX_CH_DATA1 (DISPLAY_MMIO_BASE(dev_priv) + 0x64014) #define _DPB_AUX_CH_CTL (DISPLAY_MMIO_BASE(dev_priv) + 0x64110) #define _DPB_AUX_CH_DATA1 (DISPLAY_MMIO_BASE(dev_priv) + 0x64114) #define DP_AUX_CH_CTL(aux_ch) _MMIO_PORT(aux_ch, _DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL) #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_USBC1_AUX_CH_CTL 0x16F210 #define _XELPDP_USBC2_AUX_CH_CTL 0x16F410 #define _XELPDP_USBC3_AUX_CH_CTL 0x16F610 #define _XELPDP_USBC4_AUX_CH_CTL 0x16F810 #define XELPDP_DP_AUX_CH_CTL(aux_ch) _MMIO(_PICK(aux_ch, \ _DPA_AUX_CH_CTL, \ _DPB_AUX_CH_CTL, \ 0, /* port/aux_ch C is non-existent */ \ _XELPDP_USBC1_AUX_CH_CTL, \ _XELPDP_USBC2_AUX_CH_CTL, \ _XELPDP_USBC3_AUX_CH_CTL, \ _XELPDP_USBC4_AUX_CH_CTL)) #define _XELPDP_USBC1_AUX_CH_DATA1 0x16F214 #define _XELPDP_USBC2_AUX_CH_DATA1 0x16F414 #define _XELPDP_USBC3_AUX_CH_DATA1 0x16F614 #define _XELPDP_USBC4_AUX_CH_DATA1 0x16F814 #define XELPDP_DP_AUX_CH_DATA(aux_ch, i) _MMIO(_PICK(aux_ch, \ _DPA_AUX_CH_DATA1, \ _DPB_AUX_CH_DATA1, \ 0, /* port/aux_ch C is non-existent */ \ _XELPDP_USBC1_AUX_CH_DATA1, \ _XELPDP_USBC2_AUX_CH_DATA1, \ _XELPDP_USBC3_AUX_CH_DATA1, \ _XELPDP_USBC4_AUX_CH_DATA1) + (i) * 4) #define DP_AUX_CH_CTL_SEND_BUSY (1 << 31) #define DP_AUX_CH_CTL_DONE (1 << 30) #define DP_AUX_CH_CTL_INTERRUPT (1 << 29) #define DP_AUX_CH_CTL_TIME_OUT_ERROR (1 << 28) #define DP_AUX_CH_CTL_TIME_OUT_400us (0 << 26) #define DP_AUX_CH_CTL_TIME_OUT_600us (1 << 26) #define DP_AUX_CH_CTL_TIME_OUT_800us (2 << 26) #define DP_AUX_CH_CTL_TIME_OUT_MAX (3 << 26) /* Varies per platform */ #define DP_AUX_CH_CTL_TIME_OUT_MASK (3 << 26) #define DP_AUX_CH_CTL_RECEIVE_ERROR (1 << 25) #define DP_AUX_CH_CTL_MESSAGE_SIZE_MASK (0x1f << 20) #define DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT 20 #define XELPDP_DP_AUX_CH_CTL_POWER_REQUEST REG_BIT(19) #define XELPDP_DP_AUX_CH_CTL_POWER_STATUS REG_BIT(18) #define DP_AUX_CH_CTL_PRECHARGE_2US_MASK (0xf << 16) #define DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT 16 #define DP_AUX_CH_CTL_AUX_AKSV_SELECT (1 << 15) #define DP_AUX_CH_CTL_MANCHESTER_TEST (1 << 14) #define DP_AUX_CH_CTL_SYNC_TEST (1 << 13) #define DP_AUX_CH_CTL_DEGLITCH_TEST (1 << 12) #define DP_AUX_CH_CTL_PRECHARGE_TEST (1 << 11) #define DP_AUX_CH_CTL_BIT_CLOCK_2X_MASK (0x7ff) #define DP_AUX_CH_CTL_BIT_CLOCK_2X_SHIFT 0 #define DP_AUX_CH_CTL_PSR_DATA_AUX_REG_SKL (1 << 14) #define DP_AUX_CH_CTL_FS_DATA_AUX_REG_SKL (1 << 13) #define DP_AUX_CH_CTL_GTC_DATA_AUX_REG_SKL (1 << 12) #define DP_AUX_CH_CTL_TBT_IO (1 << 11) #define DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL_MASK (0x1f << 5) #define DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(c) (((c) - 1) << 5) #define DP_AUX_CH_CTL_SYNC_PULSE_SKL(c) ((c) - 1) #endif /* __INTEL_DP_AUX_REGS_H__ */