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>
9 #include "kms++.h"
11 using namespace std;
13 namespace kms
14 {
16 struct EncoderPriv
17 {
18 drmModeEncoderPtr drm_encoder;
19 };
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 };
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 }
42 Encoder::~Encoder()
43 {
44 drmModeFreeEncoder(m_priv->drm_encoder);
45 delete m_priv;
46 }
48 Crtc* Encoder::get_crtc() const
49 {
50 if (m_priv->drm_encoder->crtc_id)
51 return card().get_crtc(m_priv->drm_encoder->crtc_id);
52 else
53 return 0;
54 }
56 vector<Crtc*> Encoder::get_possible_crtcs() const
57 {
58 unsigned bits = m_priv->drm_encoder->possible_crtcs;
59 vector<Crtc*> crtcs;
61 for (int idx = 0; bits; idx++, bits >>= 1) {
62 if ((bits & 1) == 0)
63 continue;
65 auto crtc = card().get_crtcs()[idx];
66 crtcs.push_back(crtc);
67 }
69 return crtcs;
70 }
72 const string& Encoder::get_encoder_type() const
73 {
74 return encoder_types.at(m_priv->drm_encoder->encoder_type);
75 }
77 }