intel_ddi_buf_trans.h

 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
11struct intel_encoder;
12struct intel_crtc_state;
13
14struct hsw_ddi_buf_trans {
15	u32 trans1;	/* balance leg enable, de-emph level */
16	u32 trans2;	/* vref sel, vswing */
17	u8 i_boost;	/* SKL: I_boost; valid: 0x0, 0x1, 0x3, 0x7 */
18};
19
20struct bxt_ddi_buf_trans {
21	u8 margin;	/* swing value */
22	u8 scale;	/* scale value */
23	u8 enable;	/* scale enable */
24	u8 deemphasis;
25};
26
27struct icl_ddi_buf_trans {
28	u8 dw2_swing_sel;
29	u8 dw7_n_scalar;
30	u8 dw4_cursor_coeff;
31	u8 dw4_post_cursor_2;
32	u8 dw4_post_cursor_1;
33};
34
35struct icl_mg_phy_ddi_buf_trans {
36	u8 cri_txdeemph_override_11_6;
37	u8 cri_txdeemph_override_5_0;
38	u8 cri_txdeemph_override_17_12;
39};
40
41struct tgl_dkl_phy_ddi_buf_trans {
42	u8 vswing;
43	u8 preshoot;
44	u8 de_emphasis;
45};
46
47struct dg2_snps_phy_buf_trans {
48	u8 vswing;
49	u8 pre_cursor;
50	u8 post_cursor;
51};
52
53struct xe3plpd_lt_phy_buf_trans {
54	u8 txswing;
55	u8 txswing_level;
56	u8 pre_cursor;
57	u8 main_cursor;
58	u8 post_cursor;
59};
60
61union intel_ddi_buf_trans_entry {
62	struct hsw_ddi_buf_trans hsw;
63	struct bxt_ddi_buf_trans bxt;
64	struct icl_ddi_buf_trans icl;
65	struct icl_mg_phy_ddi_buf_trans mg;
66	struct tgl_dkl_phy_ddi_buf_trans dkl;
67	struct dg2_snps_phy_buf_trans snps;
68	struct xe3plpd_lt_phy_buf_trans lt;
69};
70
71struct intel_ddi_buf_trans {
72	const union intel_ddi_buf_trans_entry *entries;
73	u8 num_entries;
74	u8 hdmi_default_entry;
75};
76
77bool is_hobl_buf_trans(const struct intel_ddi_buf_trans *table);
78
79void intel_ddi_buf_trans_init(struct intel_encoder *encoder);
80
81#endif