1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2020 Intel Corporation 4 */ 5 6 #ifndef _INTEL_DDI_BUF_TRANS_H_ 7 #define _INTEL_DDI_BUF_TRANS_H_ 8 9 #include <linux/types.h> 10 11 struct drm_i915_private; 12 struct intel_encoder; 13 struct intel_crtc_state; 14 15 struct ddi_buf_trans { 16 u32 trans1; /* balance leg enable, de-emph level */ 17 u32 trans2; /* vref sel, vswing */ 18 u8 i_boost; /* SKL: I_boost; valid: 0x0, 0x1, 0x3, 0x7 */ 19 }; 20 21 struct bxt_ddi_buf_trans { 22 u8 margin; /* swing value */ 23 u8 scale; /* scale value */ 24 u8 enable; /* scale enable */ 25 u8 deemphasis; 26 }; 27 28 struct cnl_ddi_buf_trans { 29 u8 dw2_swing_sel; 30 u8 dw7_n_scalar; 31 u8 dw4_cursor_coeff; 32 u8 dw4_post_cursor_2; 33 u8 dw4_post_cursor_1; 34 }; 35 36 struct icl_mg_phy_ddi_buf_trans { 37 u32 cri_txdeemph_override_11_6; 38 u32 cri_txdeemph_override_5_0; 39 u32 cri_txdeemph_override_17_12; 40 }; 41 42 struct tgl_dkl_phy_ddi_buf_trans { 43 u32 dkl_vswing_control; 44 u32 dkl_preshoot_control; 45 u32 dkl_de_emphasis_control; 46 }; 47 48 bool is_hobl_buf_trans(const struct cnl_ddi_buf_trans *table); 49 50 int intel_ddi_hdmi_num_entries(struct intel_encoder *encoder, 51 const struct intel_crtc_state *crtc_state, 52 int *default_entry); 53 54 const struct ddi_buf_trans * 55 intel_ddi_get_buf_trans_edp(struct intel_encoder *encoder, int *n_entries); 56 const struct ddi_buf_trans * 57 intel_ddi_get_buf_trans_fdi(struct drm_i915_private *dev_priv, 58 int *n_entries); 59 const struct ddi_buf_trans * 60 intel_ddi_get_buf_trans_hdmi(struct intel_encoder *encoder, 61 int *n_entries); 62 const struct ddi_buf_trans * 63 intel_ddi_get_buf_trans_dp(struct intel_encoder *encoder, int *n_entries); 64 65 const struct bxt_ddi_buf_trans * 66 bxt_get_buf_trans(struct intel_encoder *encoder, 67 const struct intel_crtc_state *crtc_state, 68 int *n_entries); 69 70 const struct cnl_ddi_buf_trans * 71 tgl_get_combo_buf_trans(struct intel_encoder *encoder, 72 const struct intel_crtc_state *crtc_state, 73 int *n_entries); 74 const struct tgl_dkl_phy_ddi_buf_trans * 75 tgl_get_dkl_buf_trans(struct intel_encoder *encoder, 76 const struct intel_crtc_state *crtc_state, 77 int *n_entries); 78 const struct cnl_ddi_buf_trans * 79 jsl_get_combo_buf_trans(struct intel_encoder *encoder, 80 const struct intel_crtc_state *crtc_state, 81 int *n_entries); 82 const struct cnl_ddi_buf_trans * 83 ehl_get_combo_buf_trans(struct intel_encoder *encoder, 84 const struct intel_crtc_state *crtc_state, 85 int *n_entries); 86 const struct cnl_ddi_buf_trans * 87 icl_get_combo_buf_trans(struct intel_encoder *encoder, 88 const struct intel_crtc_state *crtc_state, 89 int *n_entries); 90 const struct icl_mg_phy_ddi_buf_trans * 91 icl_get_mg_buf_trans(struct intel_encoder *encoder, 92 const struct intel_crtc_state *crtc_state, 93 int *n_entries); 94 95 const struct cnl_ddi_buf_trans * 96 cnl_get_buf_trans(struct intel_encoder *encoder, 97 const struct intel_crtc_state *crtc_state, 98 int *n_entries); 99 100 #endif 101