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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* Copyright © 2006 Keith Packard
* Copyright © 2007 Intel Corporation
* Jesse Barnes <jesse.barnes@intel.com>
*/
/*
* The DRM mode setting helper functions are common code for drivers to use if they wish.
* Drivers are not forced to use this code in their implementations but it would be useful
* if they code they do use at least provides a consistent interface and operation to userspace
*/
#ifndef __DRM_CRTC_HELPER_H__
#define __DRM_CRTC_HELPER_H__
#include <linux/i2c.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/idr.h>
#include <linux/fb.h>
struct drm_crtc_helper_funcs {
void (*prepare)(struct drm_crtc *crtc);
void (*commit)(struct drm_crtc *crtc);
/* Provider can fixup or change mode timings before modeset occurs */
bool (*mode_fixup)(struct drm_crtc *crtc,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
/* Actually set the mode */
void (*mode_set)(struct drm_crtc *crtc, struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode, int x, int y);
/* Move the crtc on the current fb to the given position *optional* */
void (*mode_set_base)(struct drm_crtc *crtc, int x, int y);
};
struct drm_connector_helper_funcs {
bool (*mode_fixup)(struct drm_connector *connector,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
void (*prepare)(struct drm_connector *connector);
void (*commit)(struct drm_connector *connector);
void (*mode_set)(struct drm_connector *connector,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
};
struct drm_encoder_helper_funcs {
void (*prepare)(struct drm_connector *connector);
void (*commit)(struct drm_connector *connector);
void (*mode_set)(struct drm_connector *connector,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
};
extern int drm_helper_hotplug_stage_two(struct drm_device *dev, struct drm_connector *connector,
bool connected);
extern bool drm_helper_initial_config(struct drm_device *dev, bool can_grow);
extern int drm_crtc_helper_set_config(struct drm_mode_set *set);
extern bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode,
int x, int y);
static inline void drm_crtc_helper_add(struct drm_crtc *crtc, const struct drm_crtc_helper_funcs *funcs)
{
crtc->helper_private = (void *)funcs;
}
static inline void drm_connector_helper_add(struct drm_connector *connector, const struct drm_connector_helper_funcs *funcs)
{
connector->helper_private = (void *)funcs;
}
#endif
|
