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 hsw_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 icl_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 | u8 cri_txdeemph_override_11_6; |
38 | u8 cri_txdeemph_override_5_0; |
39 | u8 cri_txdeemph_override_17_12; |
40 | }; |
41 | |
42 | struct tgl_dkl_phy_ddi_buf_trans { |
43 | u8 vswing; |
44 | u8 preshoot; |
45 | u8 de_emphasis; |
46 | }; |
47 | |
48 | struct dg2_snps_phy_buf_trans { |
49 | u8 vswing; |
50 | u8 pre_cursor; |
51 | u8 post_cursor; |
52 | }; |
53 | |
54 | union intel_ddi_buf_trans_entry { |
55 | struct hsw_ddi_buf_trans hsw; |
56 | struct bxt_ddi_buf_trans bxt; |
57 | struct icl_ddi_buf_trans icl; |
58 | struct icl_mg_phy_ddi_buf_trans mg; |
59 | struct tgl_dkl_phy_ddi_buf_trans dkl; |
60 | struct dg2_snps_phy_buf_trans snps; |
61 | }; |
62 | |
63 | struct intel_ddi_buf_trans { |
64 | const union intel_ddi_buf_trans_entry *entries; |
65 | u8 num_entries; |
66 | u8 hdmi_default_entry; |
67 | }; |
68 | |
69 | bool is_hobl_buf_trans(const struct intel_ddi_buf_trans *table); |
70 | |
71 | void intel_ddi_buf_trans_init(struct intel_encoder *encoder); |
72 | |
73 | #endif |
74 | |