197 lines
5.9 KiB
C
197 lines
5.9 KiB
C
#include "ecore_drm2_private.h"
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/* local variables */
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static int _ecore_drm2_init_count = 0;
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static void *_drm_lib = NULL;
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/* external variables */
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int _ecore_drm2_log_dom = -1;
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/* external drm function prototypes (for dlopen) */
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void *(*sym_drmModeGetResources)(int fd) = NULL;
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void (*sym_drmModeFreeResources)(drmModeResPtr ptr) = NULL;
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int (*sym_drmGetCap)(int fd, uint64_t capability, uint64_t *value);
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int (*sym_drmSetClientCap)(int fd, uint64_t capability, uint64_t value) = NULL;
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void *(*sym_drmModeGetProperty)(int fd, uint32_t propertyId);
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void (*sym_drmModeFreeProperty)(drmModePropertyPtr ptr);
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void *(*sym_drmModeGetPropertyBlob)(int fd, uint32_t blob_id);
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void (*sym_drmModeFreePropertyBlob)(drmModePropertyBlobPtr ptr);
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int (*sym_drmModeCreatePropertyBlob)(int fd, const void *data, size_t size, uint32_t *id);
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int (*sym_drmModeDestroyPropertyBlob)(int fd, uint32_t id);
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void *(*sym_drmModeObjectGetProperties)(int fd, uint32_t object_id, uint32_t object_type);
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void (*sym_drmModeFreeObjectProperties)(drmModeObjectPropertiesPtr ptr);
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void *(*sym_drmModeGetPlaneResources)(int fd);
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void (*sym_drmModeFreePlaneResources)(drmModePlaneResPtr ptr);
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void *(*sym_drmModeGetPlane)(int fd, uint32_t plane_id);
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void (*sym_drmModeFreePlane)(drmModePlanePtr ptr);
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void *(*sym_drmModeGetConnector)(int fd, uint32_t connectorId);
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void (*sym_drmModeFreeConnector)(drmModeConnectorPtr ptr);
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void *(*sym_drmModeGetEncoder)(int fd, uint32_t encoder_id);
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void (*sym_drmModeFreeEncoder)(drmModeEncoderPtr ptr);
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void *(*sym_drmModeGetCrtc)(int fd, uint32_t crtcId);
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void (*sym_drmModeFreeCrtc)(drmModeCrtcPtr ptr);
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void *(*sym_drmModeAtomicAlloc)(void) = NULL;
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void (*sym_drmModeAtomicFree)(drmModeAtomicReqPtr req) = NULL;
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int (*sym_drmModeAtomicAddProperty)(drmModeAtomicReqPtr req, uint32_t object_id, uint32_t property_id, uint64_t value) = NULL;
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int (*sym_drmModeAtomicCommit)(int fd, drmModeAtomicReqPtr req, uint32_t flags, void *user_data) = NULL;
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void (*sym_drmModeAtomicSetCursor)(drmModeAtomicReqPtr req, int cursor) = NULL;
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int (*sym_drmWaitVBlank)(int fd, drmVBlank *vbl) = NULL;
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EAPI int ECORE_DRM2_EVENT_ACTIVATE = -1;
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/* local static functions */
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static Eina_Bool
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_ecore_drm2_link(void)
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{
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int i;
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Eina_Bool fail = EINA_FALSE;
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const char *drm_libs[] =
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{
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"libdrm.so.2",
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"libdrm.so.1",
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"libdrm.so.0",
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"libdrm.so",
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NULL,
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};
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#define SYM(lib, xx) \
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do { \
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sym_ ## xx = dlsym(lib, #xx); \
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if (!(sym_ ## xx)) { \
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fail = EINA_TRUE; \
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} \
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} while (0)
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if (_drm_lib) return EINA_TRUE;
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for (i = 0; drm_libs[i]; i++)
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{
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_drm_lib = dlopen(drm_libs[i], RTLD_LOCAL | RTLD_LAZY);
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if (!_drm_lib) continue;
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fail = EINA_FALSE;
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/* TODO: Sym needed libdrm functions */
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SYM(_drm_lib, drmModeGetResources);
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SYM(_drm_lib, drmModeFreeResources);
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SYM(_drm_lib, drmGetCap);
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SYM(_drm_lib, drmSetClientCap);
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SYM(_drm_lib, drmModeGetProperty);
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SYM(_drm_lib, drmModeFreeProperty);
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SYM(_drm_lib, drmModeGetPropertyBlob);
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SYM(_drm_lib, drmModeFreePropertyBlob);
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SYM(_drm_lib, drmModeCreatePropertyBlob);
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SYM(_drm_lib, drmModeDestroyPropertyBlob);
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SYM(_drm_lib, drmModeObjectGetProperties);
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SYM(_drm_lib, drmModeFreeObjectProperties);
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SYM(_drm_lib, drmModeGetPlaneResources);
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SYM(_drm_lib, drmModeFreePlaneResources);
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SYM(_drm_lib, drmModeGetPlane);
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SYM(_drm_lib, drmModeFreePlane);
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SYM(_drm_lib, drmModeGetConnector);
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SYM(_drm_lib, drmModeFreeConnector);
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SYM(_drm_lib, drmModeGetEncoder);
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SYM(_drm_lib, drmModeFreeEncoder);
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SYM(_drm_lib, drmModeGetCrtc);
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SYM(_drm_lib, drmModeFreeCrtc);
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SYM(_drm_lib, drmModeAtomicAlloc);
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SYM(_drm_lib, drmModeAtomicFree);
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SYM(_drm_lib, drmModeAtomicAddProperty);
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SYM(_drm_lib, drmModeAtomicCommit);
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SYM(_drm_lib, drmModeAtomicSetCursor);
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SYM(_drm_lib, drmWaitVBlank);
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if (fail)
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{
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dlclose(_drm_lib);
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_drm_lib = NULL;
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}
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else
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break;
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}
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if (!_drm_lib) return EINA_FALSE;
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return EINA_TRUE;
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}
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/* API functions */
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EAPI int
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ecore_drm2_init(void)
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{
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if (++_ecore_drm2_init_count != 1) return _ecore_drm2_init_count;
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if (!eina_init()) goto eina_err;
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if (!ecore_init())
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{
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EINA_LOG_ERR("Could not initialize Ecore library");
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goto ecore_err;
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}
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if (!eeze_init())
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{
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EINA_LOG_ERR("Could not initialize Eeze library");
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goto eeze_err;
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}
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if (!elput_init())
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{
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EINA_LOG_ERR("Could not initialize Elput library");
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goto elput_err;
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}
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_ecore_drm2_log_dom =
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eina_log_domain_register("ecore_drm2", ECORE_DRM2_DEFAULT_LOG_COLOR);
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if (!_ecore_drm2_log_dom)
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{
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EINA_LOG_ERR("Could not create logging domain for Ecore_Drm2");
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goto log_err;
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}
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ECORE_DRM2_EVENT_ACTIVATE = ecore_event_type_new();
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if (!_ecore_drm2_link()) goto link_err;
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return _ecore_drm2_init_count;
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link_err:
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eina_log_domain_unregister(_ecore_drm2_log_dom);
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_ecore_drm2_log_dom = -1;
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log_err:
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elput_shutdown();
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elput_err:
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eeze_shutdown();
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eeze_err:
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ecore_shutdown();
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ecore_err:
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eina_shutdown();
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eina_err:
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return --_ecore_drm2_init_count;
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}
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EAPI int
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ecore_drm2_shutdown(void)
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{
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if (_ecore_drm2_init_count < 1)
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{
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ERR("Ecore_Drm2 shutdown called without init");
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return 0;
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}
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if (--_ecore_drm2_init_count != 0) return _ecore_drm2_init_count;
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if (_drm_lib) dlclose(_drm_lib);
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ECORE_DRM2_EVENT_ACTIVATE = -1;
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eina_log_domain_unregister(_ecore_drm2_log_dom);
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_ecore_drm2_log_dom = -1;
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elput_shutdown();
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eeze_shutdown();
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ecore_shutdown();
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eina_shutdown();
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return _ecore_drm2_init_count;
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}
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