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 #undef DEF_ENC
32 };
33
Encoder(Card & card,uint32_t id,uint32_t idx)34 Encoder::Encoder(Card &card, uint32_t id, uint32_t idx)
35 :DrmPropObject(card, id, DRM_MODE_OBJECT_ENCODER, idx)
36 {
37 m_priv = new EncoderPriv();
38 m_priv->drm_encoder = drmModeGetEncoder(this->card().fd(), this->id());
39 assert(m_priv->drm_encoder);
40 }
41
~Encoder()42 Encoder::~Encoder()
43 {
44 drmModeFreeEncoder(m_priv->drm_encoder);
45 delete m_priv;
46 }
47
refresh()48 void Encoder::refresh()
49 {
50 drmModeFreeEncoder(m_priv->drm_encoder);
51
52 m_priv->drm_encoder = drmModeGetEncoder(this->card().fd(), this->id());
53 assert(m_priv->drm_encoder);
54 }
55
get_crtc() const56 Crtc* Encoder::get_crtc() const
57 {
58 if (m_priv->drm_encoder->crtc_id)
59 return card().get_crtc(m_priv->drm_encoder->crtc_id);
60 else
61 return 0;
62 }
63
get_possible_crtcs() const64 vector<Crtc*> Encoder::get_possible_crtcs() const
65 {
66 unsigned bits = m_priv->drm_encoder->possible_crtcs;
67 vector<Crtc*> crtcs;
68
69 for (int idx = 0; bits; idx++, bits >>= 1) {
70 if ((bits & 1) == 0)
71 continue;
72
73 auto crtc = card().get_crtcs()[idx];
74 crtcs.push_back(crtc);
75 }
76
77 return crtcs;
78 }
79
get_encoder_type() const80 const string& Encoder::get_encoder_type() const
81 {
82 return encoder_types.at(m_priv->drm_encoder->encoder_type);
83 }
84
85 }
86