1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33#ifndef __DRM_CRTC_HELPER_H__
34#define __DRM_CRTC_HELPER_H__
35
36#include <linux/spinlock.h>
37#include <linux/types.h>
38#include <linux/idr.h>
39
40#include <linux/fb.h>
41
42enum mode_set_atomic {
43 LEAVE_ATOMIC_MODE_SET,
44 ENTER_ATOMIC_MODE_SET,
45};
46
47
48
49
50
51
52
53
54struct drm_crtc_helper_funcs {
55
56
57
58
59 void (*dpms)(struct drm_crtc *crtc, int mode);
60 void (*prepare)(struct drm_crtc *crtc);
61 void (*commit)(struct drm_crtc *crtc);
62
63
64 bool (*mode_fixup)(struct drm_crtc *crtc,
65 const struct drm_display_mode *mode,
66 struct drm_display_mode *adjusted_mode);
67
68 int (*mode_set)(struct drm_crtc *crtc, struct drm_display_mode *mode,
69 struct drm_display_mode *adjusted_mode, int x, int y,
70 struct drm_framebuffer *old_fb);
71
72
73 int (*mode_set_base)(struct drm_crtc *crtc, int x, int y,
74 struct drm_framebuffer *old_fb);
75 int (*mode_set_base_atomic)(struct drm_crtc *crtc,
76 struct drm_framebuffer *fb, int x, int y,
77 enum mode_set_atomic);
78
79
80 void (*load_lut)(struct drm_crtc *crtc);
81
82
83 void (*disable)(struct drm_crtc *crtc);
84};
85
86
87
88
89
90
91
92
93struct drm_encoder_helper_funcs {
94 void (*dpms)(struct drm_encoder *encoder, int mode);
95 void (*save)(struct drm_encoder *encoder);
96 void (*restore)(struct drm_encoder *encoder);
97
98 bool (*mode_fixup)(struct drm_encoder *encoder,
99 const struct drm_display_mode *mode,
100 struct drm_display_mode *adjusted_mode);
101 void (*prepare)(struct drm_encoder *encoder);
102 void (*commit)(struct drm_encoder *encoder);
103 void (*mode_set)(struct drm_encoder *encoder,
104 struct drm_display_mode *mode,
105 struct drm_display_mode *adjusted_mode);
106 struct drm_crtc *(*get_crtc)(struct drm_encoder *encoder);
107
108 enum drm_connector_status (*detect)(struct drm_encoder *encoder,
109 struct drm_connector *connector);
110
111 void (*disable)(struct drm_encoder *encoder);
112};
113
114
115
116
117
118
119
120
121struct drm_connector_helper_funcs {
122 int (*get_modes)(struct drm_connector *connector);
123 enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
124 struct drm_display_mode *mode);
125 struct drm_encoder *(*best_encoder)(struct drm_connector *connector);
126};
127
128extern void drm_helper_disable_unused_functions(struct drm_device *dev);
129extern int drm_crtc_helper_set_config(struct drm_mode_set *set);
130extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
131 struct drm_display_mode *mode,
132 int x, int y,
133 struct drm_framebuffer *old_fb);
134extern bool drm_helper_crtc_in_use(struct drm_crtc *crtc);
135extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder);
136
137extern void drm_helper_connector_dpms(struct drm_connector *connector, int mode);
138
139extern void drm_helper_move_panel_connectors_to_head(struct drm_device *);
140
141extern void drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
142 struct drm_mode_fb_cmd2 *mode_cmd);
143
144static inline void drm_crtc_helper_add(struct drm_crtc *crtc,
145 const struct drm_crtc_helper_funcs *funcs)
146{
147 crtc->helper_private = (void *)funcs;
148}
149
150static inline void drm_encoder_helper_add(struct drm_encoder *encoder,
151 const struct drm_encoder_helper_funcs *funcs)
152{
153 encoder->helper_private = (void *)funcs;
154}
155
156static inline void drm_connector_helper_add(struct drm_connector *connector,
157 const struct drm_connector_helper_funcs *funcs)
158{
159 connector->helper_private = (void *)funcs;
160}
161
162extern void drm_helper_resume_force_mode(struct drm_device *dev);
163
164
165extern int drm_helper_probe_single_connector_modes(struct drm_connector
166 *connector, uint32_t maxX,
167 uint32_t maxY);
168extern int drm_helper_probe_single_connector_modes_nomerge(struct drm_connector
169 *connector,
170 uint32_t maxX,
171 uint32_t maxY);
172extern void drm_kms_helper_poll_init(struct drm_device *dev);
173extern void drm_kms_helper_poll_fini(struct drm_device *dev);
174extern bool drm_helper_hpd_irq_event(struct drm_device *dev);
175extern void drm_kms_helper_hotplug_event(struct drm_device *dev);
176
177extern void drm_kms_helper_poll_disable(struct drm_device *dev);
178extern void drm_kms_helper_poll_enable(struct drm_device *dev);
179
180#endif
181