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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 void (*mode_set_nofb)(struct drm_crtc *crtc);
72
73
74 int (*mode_set_base)(struct drm_crtc *crtc, int x, int y,
75 struct drm_framebuffer *old_fb);
76 int (*mode_set_base_atomic)(struct drm_crtc *crtc,
77 struct drm_framebuffer *fb, int x, int y,
78 enum mode_set_atomic);
79
80
81 void (*load_lut)(struct drm_crtc *crtc);
82
83
84 void (*disable)(struct drm_crtc *crtc);
85
86
87 int (*atomic_check)(struct drm_crtc *crtc,
88 struct drm_crtc_state *state);
89 void (*atomic_begin)(struct drm_crtc *crtc);
90 void (*atomic_flush)(struct drm_crtc *crtc);
91};
92
93
94
95
96
97
98
99
100struct drm_encoder_helper_funcs {
101 void (*dpms)(struct drm_encoder *encoder, int mode);
102 void (*save)(struct drm_encoder *encoder);
103 void (*restore)(struct drm_encoder *encoder);
104
105 bool (*mode_fixup)(struct drm_encoder *encoder,
106 const struct drm_display_mode *mode,
107 struct drm_display_mode *adjusted_mode);
108 void (*prepare)(struct drm_encoder *encoder);
109 void (*commit)(struct drm_encoder *encoder);
110 void (*mode_set)(struct drm_encoder *encoder,
111 struct drm_display_mode *mode,
112 struct drm_display_mode *adjusted_mode);
113 struct drm_crtc *(*get_crtc)(struct drm_encoder *encoder);
114
115 enum drm_connector_status (*detect)(struct drm_encoder *encoder,
116 struct drm_connector *connector);
117
118 void (*disable)(struct drm_encoder *encoder);
119};
120
121
122
123
124
125
126
127
128struct drm_connector_helper_funcs {
129 int (*get_modes)(struct drm_connector *connector);
130 enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
131 struct drm_display_mode *mode);
132 struct drm_encoder *(*best_encoder)(struct drm_connector *connector);
133};
134
135extern void drm_helper_disable_unused_functions(struct drm_device *dev);
136extern int drm_crtc_helper_set_config(struct drm_mode_set *set);
137extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
138 struct drm_display_mode *mode,
139 int x, int y,
140 struct drm_framebuffer *old_fb);
141extern bool drm_helper_crtc_in_use(struct drm_crtc *crtc);
142extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder);
143
144extern void drm_helper_connector_dpms(struct drm_connector *connector, int mode);
145
146extern void drm_helper_move_panel_connectors_to_head(struct drm_device *);
147
148extern void drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
149 struct drm_mode_fb_cmd2 *mode_cmd);
150
151static inline void drm_crtc_helper_add(struct drm_crtc *crtc,
152 const struct drm_crtc_helper_funcs *funcs)
153{
154 crtc->helper_private = (void *)funcs;
155}
156
157static inline void drm_encoder_helper_add(struct drm_encoder *encoder,
158 const struct drm_encoder_helper_funcs *funcs)
159{
160 encoder->helper_private = (void *)funcs;
161}
162
163static inline void drm_connector_helper_add(struct drm_connector *connector,
164 const struct drm_connector_helper_funcs *funcs)
165{
166 connector->helper_private = (void *)funcs;
167}
168
169extern void drm_helper_resume_force_mode(struct drm_device *dev);
170
171int drm_helper_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
172 struct drm_display_mode *adjusted_mode, int x, int y,
173 struct drm_framebuffer *old_fb);
174int drm_helper_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
175 struct drm_framebuffer *old_fb);
176
177
178extern int drm_helper_probe_single_connector_modes(struct drm_connector
179 *connector, uint32_t maxX,
180 uint32_t maxY);
181extern int drm_helper_probe_single_connector_modes_nomerge(struct drm_connector
182 *connector,
183 uint32_t maxX,
184 uint32_t maxY);
185extern void drm_kms_helper_poll_init(struct drm_device *dev);
186extern void drm_kms_helper_poll_fini(struct drm_device *dev);
187extern bool drm_helper_hpd_irq_event(struct drm_device *dev);
188extern void drm_kms_helper_hotplug_event(struct drm_device *dev);
189
190extern void drm_kms_helper_poll_disable(struct drm_device *dev);
191extern void drm_kms_helper_poll_enable(struct drm_device *dev);
192
193#endif
194