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      1 #include <cassert>
      2 #include <stdexcept>
      3 
      4 #include <xf86drm.h>
      5 #include <xf86drmMode.h>
      6 
      7 #include <kms++/kms++.h>
      8 
      9 #ifndef DRM_CLIENT_CAP_ATOMIC
     10 
     11 #define DRM_MODE_ATOMIC_TEST_ONLY 0
     12 #define DRM_MODE_ATOMIC_NONBLOCK 0
     13 
     14 struct _drmModeAtomicReq;
     15 typedef struct _drmModeAtomicReq* drmModeAtomicReqPtr;
     16 
     17 static inline drmModeAtomicReqPtr drmModeAtomicAlloc() { return 0; }
     18 static inline void drmModeAtomicFree(drmModeAtomicReqPtr) { }
     19 static inline int drmModeAtomicAddProperty(drmModeAtomicReqPtr, uint32_t, uint32_t, uint64_t) { return 0; }
     20 static inline int drmModeAtomicCommit(int, drmModeAtomicReqPtr, int, void*) { return 0; }
     21 
     22 #endif // DRM_CLIENT_CAP_ATOMIC
     23 
     24 using namespace std;
     25 
     26 namespace kms
     27 {
     28 AtomicReq::AtomicReq(Card& card)
     29 	: m_card(card)
     30 {
     31 	assert(card.has_atomic());
     32 	m_req = drmModeAtomicAlloc();
     33 }
     34 
     35 AtomicReq::~AtomicReq()
     36 {
     37 	drmModeAtomicFree(m_req);
     38 }
     39 
     40 void AtomicReq::add(uint32_t ob_id, uint32_t prop_id, uint64_t value)
     41 {
     42 	int r = drmModeAtomicAddProperty(m_req, ob_id, prop_id, value);
     43 	if (r <= 0)
     44 		throw std::invalid_argument("foo");
     45 }
     46 
     47 void AtomicReq::add(DrmPropObject* ob, Property *prop, uint64_t value)
     48 {
     49 	add(ob->id(), prop->id(), value);
     50 }
     51 
     52 void AtomicReq::add(kms::DrmPropObject* ob, const string& prop, uint64_t value)
     53 {
     54 	add(ob, ob->get_prop(prop), value);
     55 }
     56 
     57 void AtomicReq::add(kms::DrmPropObject* ob, const map<string, uint64_t>& values)
     58 {
     59 	for(const auto& kvp : values)
     60 		add(ob, kvp.first, kvp.second);
     61 }
     62 
     63 void AtomicReq::add_display(Connector* conn, Crtc* crtc, Blob* videomode, Plane* primary, Framebuffer* fb)
     64 {
     65 	add(conn, {
     66 		    { "CRTC_ID", crtc->id() },
     67 	    });
     68 
     69 	add(crtc, {
     70 		    { "ACTIVE", 1 },
     71 		    { "MODE_ID", videomode->id() },
     72 	    });
     73 
     74 	add(primary, {
     75 		    { "FB_ID", fb->id() },
     76 		    { "CRTC_ID", crtc->id() },
     77 		    { "SRC_X", 0 << 16 },
     78 		    { "SRC_Y", 0 << 16 },
     79 		    { "SRC_W", fb->width() << 16 },
     80 		    { "SRC_H", fb->height() << 16 },
     81 		    { "CRTC_X", 0 },
     82 		    { "CRTC_Y", 0 },
     83 		    { "CRTC_W", fb->width() },
     84 		    { "CRTC_H", fb->height() },
     85 	    });
     86 }
     87 
     88 int AtomicReq::test(bool allow_modeset)
     89 {
     90 	uint32_t flags = DRM_MODE_ATOMIC_TEST_ONLY;
     91 
     92 	if (allow_modeset)
     93 		flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
     94 
     95 	return drmModeAtomicCommit(m_card.fd(), m_req, flags, 0);
     96 }
     97 
     98 int AtomicReq::commit(void* data, bool allow_modeset)
     99 {
    100 	uint32_t flags = DRM_MODE_PAGE_FLIP_EVENT | DRM_MODE_ATOMIC_NONBLOCK;
    101 
    102 	if (allow_modeset)
    103 		flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
    104 
    105 	return drmModeAtomicCommit(m_card.fd(), m_req, flags, data);
    106 }
    107 
    108 int AtomicReq::commit_sync(bool allow_modeset)
    109 {
    110 	uint32_t flags = 0;
    111 
    112 	if (allow_modeset)
    113 		flags |= DRM_MODE_ATOMIC_ALLOW_MODESET;
    114 
    115 	return drmModeAtomicCommit(m_card.fd(), m_req, flags, 0);
    116 }
    117 }
    118