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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 int (*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 int drm_helper_probe_single_connector_modes(struct drm_connector *connector, uint32_t maxX, uint32_t maxY);
129extern void drm_helper_disable_unused_functions(struct drm_device *dev);
130extern int drm_crtc_helper_set_config(struct drm_mode_set *set);
131extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
132 struct drm_display_mode *mode,
133 int x, int y,
134 struct drm_framebuffer *old_fb);
135extern bool drm_helper_crtc_in_use(struct drm_crtc *crtc);
136extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder);
137
138extern void drm_helper_connector_dpms(struct drm_connector *connector, int mode);
139
140extern void drm_helper_move_panel_connectors_to_head(struct drm_device *);
141
142extern int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
143 struct drm_mode_fb_cmd2 *mode_cmd);
144
145static inline void drm_crtc_helper_add(struct drm_crtc *crtc,
146 const struct drm_crtc_helper_funcs *funcs)
147{
148 crtc->helper_private = (void *)funcs;
149}
150
151static inline void drm_encoder_helper_add(struct drm_encoder *encoder,
152 const struct drm_encoder_helper_funcs *funcs)
153{
154 encoder->helper_private = (void *)funcs;
155}
156
157static inline void drm_connector_helper_add(struct drm_connector *connector,
158 const struct drm_connector_helper_funcs *funcs)
159{
160 connector->helper_private = (void *)funcs;
161}
162
163extern int drm_helper_resume_force_mode(struct drm_device *dev);
164extern void drm_kms_helper_poll_init(struct drm_device *dev);
165extern void drm_kms_helper_poll_fini(struct drm_device *dev);
166extern void drm_helper_hpd_irq_event(struct drm_device *dev);
167extern void drm_kms_helper_hotplug_event(struct drm_device *dev);
168
169extern void drm_kms_helper_poll_disable(struct drm_device *dev);
170extern void drm_kms_helper_poll_enable(struct drm_device *dev);
171
172#endif
173