1/*
2 * Copyright © 2016-2019 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24/*
25 * Please use intel_vbt_defs.h for VBT private data, to hide and abstract away
26 * the VBT from the rest of the driver. Add the parsed, clean data to struct
27 * intel_vbt_data within struct intel_display.
28 */
29
30#ifndef _INTEL_BIOS_H_
31#define _INTEL_BIOS_H_
32
33#include <linux/types.h>
34
35struct drm_edid;
36struct intel_bios_encoder_data;
37struct intel_crtc_state;
38struct intel_display;
39struct intel_encoder;
40struct intel_panel;
41enum aux_ch;
42enum port;
43
44enum intel_backlight_type {
45 INTEL_BACKLIGHT_PMIC,
46 INTEL_BACKLIGHT_LPSS,
47 INTEL_BACKLIGHT_DISPLAY_DDI,
48 INTEL_BACKLIGHT_DSI_DCS,
49 INTEL_BACKLIGHT_PANEL_DRIVER_INTERFACE,
50 INTEL_BACKLIGHT_VESA_EDP_AUX_INTERFACE,
51};
52
53void intel_bios_init(struct intel_display *display);
54void intel_bios_init_panel_early(struct intel_display *display,
55 struct intel_panel *panel,
56 const struct intel_bios_encoder_data *devdata);
57void intel_bios_init_panel_late(struct intel_display *display,
58 struct intel_panel *panel,
59 const struct intel_bios_encoder_data *devdata,
60 const struct drm_edid *drm_edid);
61void intel_bios_fini_panel(struct intel_panel *panel);
62void intel_bios_driver_remove(struct intel_display *display);
63bool intel_bios_is_valid_vbt(struct intel_display *display,
64 const void *buf, size_t size);
65bool intel_bios_is_tv_present(struct intel_display *display);
66bool intel_bios_is_lvds_present(struct intel_display *display, u8 *i2c_pin);
67bool intel_bios_is_port_present(struct intel_display *display, enum port port);
68bool intel_bios_is_dsi_present(struct intel_display *display, enum port *port);
69bool intel_bios_get_dsc_params(struct intel_encoder *encoder,
70 struct intel_crtc_state *crtc_state,
71 int dsc_max_bpc);
72
73const struct intel_bios_encoder_data *
74intel_bios_encoder_data_lookup(struct intel_display *display, enum port port);
75
76bool intel_bios_encoder_supports_dvi(const struct intel_bios_encoder_data *devdata);
77bool intel_bios_encoder_supports_hdmi(const struct intel_bios_encoder_data *devdata);
78bool intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdata);
79bool intel_bios_encoder_supports_edp(const struct intel_bios_encoder_data *devdata);
80bool intel_bios_encoder_supports_typec_usb(const struct intel_bios_encoder_data *devdata);
81bool intel_bios_encoder_supports_tbt(const struct intel_bios_encoder_data *devdata);
82bool intel_bios_encoder_supports_dsi(const struct intel_bios_encoder_data *devdata);
83bool intel_bios_encoder_supports_dp_dual_mode(const struct intel_bios_encoder_data *devdata);
84bool intel_bios_encoder_is_lspcon(const struct intel_bios_encoder_data *devdata);
85bool intel_bios_encoder_lane_reversal(const struct intel_bios_encoder_data *devdata);
86bool intel_bios_encoder_hpd_invert(const struct intel_bios_encoder_data *devdata);
87enum port intel_bios_encoder_port(const struct intel_bios_encoder_data *devdata);
88bool intel_bios_encoder_reject_edp_rate(const struct intel_bios_encoder_data *devdata,
89 int rate);
90enum aux_ch intel_bios_dp_aux_ch(const struct intel_bios_encoder_data *devdata);
91int intel_bios_dp_boost_level(const struct intel_bios_encoder_data *devdata);
92int intel_bios_dp_max_lane_count(const struct intel_bios_encoder_data *devdata);
93int intel_bios_dp_max_link_rate(const struct intel_bios_encoder_data *devdata);
94bool intel_bios_dp_has_shared_aux_ch(const struct intel_bios_encoder_data *devdata);
95int intel_bios_hdmi_boost_level(const struct intel_bios_encoder_data *devdata);
96int intel_bios_hdmi_ddc_pin(const struct intel_bios_encoder_data *devdata);
97int intel_bios_hdmi_level_shift(const struct intel_bios_encoder_data *devdata);
98int intel_bios_hdmi_max_tmds_clock(const struct intel_bios_encoder_data *devdata);
99
100void intel_bios_for_each_encoder(struct intel_display *display,
101 void (*func)(struct intel_display *display,
102 const struct intel_bios_encoder_data *devdata));
103
104void intel_bios_debugfs_register(struct intel_display *display);
105
106#endif /* _INTEL_BIOS_H_ */
107

source code of linux/drivers/gpu/drm/i915/display/intel_bios.h