1 #include <stdio.h>
2 #include <iostream>
3 #include <unistd.h>
4 #include <fcntl.h>
5 #include <cassert>
6 #include <xf86drm.h>
7 #include <xf86drmMode.h>
8
9 #include <kms++/kms++.h>
10
11 using namespace std;
12
13 namespace kms
14 {
15
16 struct EncoderPriv
17 {
18 drmModeEncoderPtr drm_encoder;
19 };
20
21 static const map<int, string> encoder_types = {
22 #define DEF_ENC(c) { DRM_MODE_ENCODER_##c, #c }
23 DEF_ENC(NONE),
24 DEF_ENC(DAC),
25 DEF_ENC(TMDS),
26 DEF_ENC(LVDS),
27 DEF_ENC(TVDAC),
28 DEF_ENC(VIRTUAL),
29 DEF_ENC(DSI),
30 { 7, "DPMST" },
31 { 8, "DPI" },
32 #undef DEF_ENC
33 };
34
Encoder(Card & card,uint32_t id,uint32_t idx)35 Encoder::Encoder(Card &card, uint32_t id, uint32_t idx)
36 :DrmPropObject(card, id, DRM_MODE_OBJECT_ENCODER, idx)
37 {
38 m_priv = new EncoderPriv();
39 m_priv->drm_encoder = drmModeGetEncoder(this->card().fd(), this->id());
40 assert(m_priv->drm_encoder);
41 }
42
~Encoder()43 Encoder::~Encoder()
44 {
45 drmModeFreeEncoder(m_priv->drm_encoder);
46 delete m_priv;
47 }
48
refresh()49 void Encoder::refresh()
50 {
51 drmModeFreeEncoder(m_priv->drm_encoder);
52
53 m_priv->drm_encoder = drmModeGetEncoder(this->card().fd(), this->id());
54 assert(m_priv->drm_encoder);
55 }
56
get_crtc() const57 Crtc* Encoder::get_crtc() const
58 {
59 if (m_priv->drm_encoder->crtc_id)
60 return card().get_crtc(m_priv->drm_encoder->crtc_id);
61 else
62 return 0;
63 }
64
get_possible_crtcs() const65 vector<Crtc*> Encoder::get_possible_crtcs() const
66 {
67 unsigned bits = m_priv->drm_encoder->possible_crtcs;
68 vector<Crtc*> crtcs;
69
70 for (int idx = 0; bits; idx++, bits >>= 1) {
71 if ((bits & 1) == 0)
72 continue;
73
74 auto crtc = card().get_crtcs()[idx];
75 crtcs.push_back(crtc);
76 }
77
78 return crtcs;
79 }
80
get_encoder_type() const81 const string& Encoder::get_encoder_type() const
82 {
83 return encoder_types.at(m_priv->drm_encoder->encoder_type);
84 }
85
86 }
87