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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
47struct drm_crtc_helper_funcs {
48
49
50
51
52 void (*dpms)(struct drm_crtc *crtc, int mode);
53 void (*prepare)(struct drm_crtc *crtc);
54 void (*commit)(struct drm_crtc *crtc);
55
56
57 bool (*mode_fixup)(struct drm_crtc *crtc,
58 struct drm_display_mode *mode,
59 struct drm_display_mode *adjusted_mode);
60
61 int (*mode_set)(struct drm_crtc *crtc, struct drm_display_mode *mode,
62 struct drm_display_mode *adjusted_mode, int x, int y,
63 struct drm_framebuffer *old_fb);
64
65
66 int (*mode_set_base)(struct drm_crtc *crtc, int x, int y,
67 struct drm_framebuffer *old_fb);
68 int (*mode_set_base_atomic)(struct drm_crtc *crtc,
69 struct drm_framebuffer *fb, int x, int y,
70 enum mode_set_atomic);
71
72
73 void (*load_lut)(struct drm_crtc *crtc);
74
75
76 void (*disable)(struct drm_crtc *crtc);
77};
78
79struct drm_encoder_helper_funcs {
80 void (*dpms)(struct drm_encoder *encoder, int mode);
81 void (*save)(struct drm_encoder *encoder);
82 void (*restore)(struct drm_encoder *encoder);
83
84 bool (*mode_fixup)(struct drm_encoder *encoder,
85 struct drm_display_mode *mode,
86 struct drm_display_mode *adjusted_mode);
87 void (*prepare)(struct drm_encoder *encoder);
88 void (*commit)(struct drm_encoder *encoder);
89 void (*mode_set)(struct drm_encoder *encoder,
90 struct drm_display_mode *mode,
91 struct drm_display_mode *adjusted_mode);
92 struct drm_crtc *(*get_crtc)(struct drm_encoder *encoder);
93
94 enum drm_connector_status (*detect)(struct drm_encoder *encoder,
95 struct drm_connector *connector);
96
97 void (*disable)(struct drm_encoder *encoder);
98};
99
100struct drm_connector_helper_funcs {
101 int (*get_modes)(struct drm_connector *connector);
102 int (*mode_valid)(struct drm_connector *connector,
103 struct drm_display_mode *mode);
104 struct drm_encoder *(*best_encoder)(struct drm_connector *connector);
105};
106
107extern int drm_helper_probe_single_connector_modes(struct drm_connector *connector, uint32_t maxX, uint32_t maxY);
108extern void drm_helper_disable_unused_functions(struct drm_device *dev);
109extern int drm_crtc_helper_set_config(struct drm_mode_set *set);
110extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc,
111 struct drm_display_mode *mode,
112 int x, int y,
113 struct drm_framebuffer *old_fb);
114extern bool drm_helper_crtc_in_use(struct drm_crtc *crtc);
115extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder);
116
117extern void drm_helper_connector_dpms(struct drm_connector *connector, int mode);
118
119extern int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
120 struct drm_mode_fb_cmd *mode_cmd);
121
122static inline void drm_crtc_helper_add(struct drm_crtc *crtc,
123 const struct drm_crtc_helper_funcs *funcs)
124{
125 crtc->helper_private = (void *)funcs;
126}
127
128static inline void drm_encoder_helper_add(struct drm_encoder *encoder,
129 const struct drm_encoder_helper_funcs *funcs)
130{
131 encoder->helper_private = (void *)funcs;
132}
133
134static inline void drm_connector_helper_add(struct drm_connector *connector,
135 const struct drm_connector_helper_funcs *funcs)
136{
137 connector->helper_private = (void *)funcs;
138}
139
140extern int drm_helper_resume_force_mode(struct drm_device *dev);
141extern void drm_kms_helper_poll_init(struct drm_device *dev);
142extern void drm_kms_helper_poll_fini(struct drm_device *dev);
143extern void drm_helper_hpd_irq_event(struct drm_device *dev);
144
145extern void drm_kms_helper_poll_disable(struct drm_device *dev);
146extern void drm_kms_helper_poll_enable(struct drm_device *dev);
147#endif
148