drm: Extract drm_encoder.[hc]
Same treatment as before. Only hiccup is drm_crtc_mask, which unfortunately can't be resolved until drm_crtc.h is less of a monster. Untangle the header loop with a forward declaration for that static inline. Reviewed-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20160829082757.17913-1-daniel.vetter@ffwll.ch
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Коммит
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@ -125,6 +125,15 @@ Connector Functions Reference
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.. kernel-doc:: drivers/gpu/drm/drm_connector.c
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:export:
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Encoder Abstraction
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===================
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.. kernel-doc:: include/drm/drm_encoder.h
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:internal:
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.. kernel-doc:: drivers/gpu/drm/drm_encoder.c
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:export:
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KMS Initialization and Cleanup
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==============================
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@ -13,7 +13,8 @@ drm-y := drm_auth.o drm_bufs.o drm_cache.o \
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drm_trace_points.o drm_global.o drm_prime.o \
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drm_rect.o drm_vma_manager.o drm_flip_work.o \
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drm_modeset_lock.o drm_atomic.o drm_bridge.o \
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drm_framebuffer.o drm_connector.o drm_blend.o
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drm_framebuffer.o drm_connector.o drm_blend.o \
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drm_encoder.o
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drm-$(CONFIG_COMPAT) += drm_ioc32.o
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drm-$(CONFIG_DRM_GEM_CMA_HELPER) += drm_gem_cma_helper.o
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@ -54,18 +54,6 @@ static const struct drm_prop_enum_list drm_plane_type_enum_list[] = {
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{ DRM_PLANE_TYPE_CURSOR, "Cursor" },
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};
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static const struct drm_prop_enum_list drm_encoder_enum_list[] = {
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{ DRM_MODE_ENCODER_NONE, "None" },
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{ DRM_MODE_ENCODER_DAC, "DAC" },
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{ DRM_MODE_ENCODER_TMDS, "TMDS" },
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{ DRM_MODE_ENCODER_LVDS, "LVDS" },
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{ DRM_MODE_ENCODER_TVDAC, "TV" },
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{ DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
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{ DRM_MODE_ENCODER_DSI, "DSI" },
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{ DRM_MODE_ENCODER_DPMST, "DP MST" },
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{ DRM_MODE_ENCODER_DPI, "DPI" },
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};
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/*
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* Optional properties
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*/
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@ -419,117 +407,6 @@ void drm_crtc_cleanup(struct drm_crtc *crtc)
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}
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EXPORT_SYMBOL(drm_crtc_cleanup);
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static int drm_encoder_register_all(struct drm_device *dev)
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{
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struct drm_encoder *encoder;
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int ret = 0;
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drm_for_each_encoder(encoder, dev) {
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if (encoder->funcs->late_register)
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ret = encoder->funcs->late_register(encoder);
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if (ret)
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return ret;
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}
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return 0;
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}
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static void drm_encoder_unregister_all(struct drm_device *dev)
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{
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struct drm_encoder *encoder;
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drm_for_each_encoder(encoder, dev) {
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if (encoder->funcs->early_unregister)
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encoder->funcs->early_unregister(encoder);
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}
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}
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/**
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* drm_encoder_init - Init a preallocated encoder
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* @dev: drm device
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* @encoder: the encoder to init
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* @funcs: callbacks for this encoder
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* @encoder_type: user visible type of the encoder
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* @name: printf style format string for the encoder name, or NULL for default name
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*
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* Initialises a preallocated encoder. Encoder should be
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* subclassed as part of driver encoder objects.
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*
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* Returns:
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* Zero on success, error code on failure.
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*/
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int drm_encoder_init(struct drm_device *dev,
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struct drm_encoder *encoder,
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const struct drm_encoder_funcs *funcs,
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int encoder_type, const char *name, ...)
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{
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int ret;
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drm_modeset_lock_all(dev);
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ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
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if (ret)
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goto out_unlock;
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encoder->dev = dev;
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encoder->encoder_type = encoder_type;
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encoder->funcs = funcs;
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if (name) {
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va_list ap;
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va_start(ap, name);
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encoder->name = kvasprintf(GFP_KERNEL, name, ap);
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va_end(ap);
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} else {
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encoder->name = kasprintf(GFP_KERNEL, "%s-%d",
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drm_encoder_enum_list[encoder_type].name,
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encoder->base.id);
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}
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if (!encoder->name) {
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ret = -ENOMEM;
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goto out_put;
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}
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list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
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encoder->index = dev->mode_config.num_encoder++;
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out_put:
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if (ret)
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drm_mode_object_unregister(dev, &encoder->base);
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out_unlock:
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drm_modeset_unlock_all(dev);
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return ret;
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}
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EXPORT_SYMBOL(drm_encoder_init);
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/**
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* drm_encoder_cleanup - cleans up an initialised encoder
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* @encoder: encoder to cleanup
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*
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* Cleans up the encoder but doesn't free the object.
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*/
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void drm_encoder_cleanup(struct drm_encoder *encoder)
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{
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struct drm_device *dev = encoder->dev;
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/* Note that the encoder_list is considered to be static; should we
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* remove the drm_encoder at runtime we would have to decrement all
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* the indices on the drm_encoder after us in the encoder_list.
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*/
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drm_modeset_lock_all(dev);
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drm_mode_object_unregister(dev, &encoder->base);
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kfree(encoder->name);
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list_del(&encoder->head);
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dev->mode_config.num_encoder--;
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drm_modeset_unlock_all(dev);
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memset(encoder, 0, sizeof(*encoder));
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}
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EXPORT_SYMBOL(drm_encoder_cleanup);
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static unsigned int drm_num_planes(struct drm_device *dev)
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{
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unsigned int num = 0;
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@ -1172,76 +1049,6 @@ int drm_mode_object_get_properties(struct drm_mode_object *obj, bool atomic,
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return 0;
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}
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static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder)
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{
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struct drm_connector *connector;
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struct drm_device *dev = encoder->dev;
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bool uses_atomic = false;
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/* For atomic drivers only state objects are synchronously updated and
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* protected by modeset locks, so check those first. */
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drm_for_each_connector(connector, dev) {
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if (!connector->state)
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continue;
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uses_atomic = true;
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if (connector->state->best_encoder != encoder)
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continue;
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return connector->state->crtc;
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}
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/* Don't return stale data (e.g. pending async disable). */
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if (uses_atomic)
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return NULL;
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return encoder->crtc;
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}
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/**
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* drm_mode_getencoder - get encoder configuration
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* @dev: drm device for the ioctl
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* @data: data pointer for the ioctl
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* @file_priv: drm file for the ioctl call
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*
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* Construct a encoder configuration structure to return to the user.
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*
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* Called by the user via ioctl.
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*
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* Returns:
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* Zero on success, negative errno on failure.
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*/
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int drm_mode_getencoder(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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struct drm_mode_get_encoder *enc_resp = data;
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struct drm_encoder *encoder;
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struct drm_crtc *crtc;
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if (!drm_core_check_feature(dev, DRIVER_MODESET))
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return -EINVAL;
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encoder = drm_encoder_find(dev, enc_resp->encoder_id);
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if (!encoder)
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return -ENOENT;
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drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
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crtc = drm_encoder_get_crtc(encoder);
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if (crtc)
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enc_resp->crtc_id = crtc->base.id;
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else
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enc_resp->crtc_id = 0;
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drm_modeset_unlock(&dev->mode_config.connection_mutex);
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enc_resp->encoder_type = encoder->encoder_type;
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enc_resp->encoder_id = encoder->base.id;
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enc_resp->possible_crtcs = encoder->possible_crtcs;
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enc_resp->possible_clones = encoder->possible_clones;
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return 0;
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}
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/**
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* drm_mode_getplane_res - enumerate all plane resources
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* @dev: DRM device
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@ -105,8 +105,6 @@ int drm_mode_createblob_ioctl(struct drm_device *dev,
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void *data, struct drm_file *file_priv);
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int drm_mode_destroyblob_ioctl(struct drm_device *dev,
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void *data, struct drm_file *file_priv);
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int drm_mode_getencoder(struct drm_device *dev,
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void *data, struct drm_file *file_priv);
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int drm_mode_gamma_get_ioctl(struct drm_device *dev,
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void *data, struct drm_file *file_priv);
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int drm_mode_gamma_set_ioctl(struct drm_device *dev,
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@ -115,6 +113,14 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev,
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int drm_mode_page_flip_ioctl(struct drm_device *dev,
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void *data, struct drm_file *file_priv);
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/* drm_encoder.c */
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int drm_encoder_register_all(struct drm_device *dev);
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void drm_encoder_unregister_all(struct drm_device *dev);
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/* IOCTL */
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int drm_mode_getencoder(struct drm_device *dev,
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void *data, struct drm_file *file_priv);
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/* drm_connector.c */
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void drm_connector_ida_init(void);
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void drm_connector_ida_destroy(void);
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@ -0,0 +1,220 @@
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include <linux/export.h>
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#include <drm/drmP.h>
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#include <drm/drm_encoder.h>
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#include "drm_crtc_internal.h"
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static const struct drm_prop_enum_list drm_encoder_enum_list[] = {
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{ DRM_MODE_ENCODER_NONE, "None" },
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{ DRM_MODE_ENCODER_DAC, "DAC" },
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{ DRM_MODE_ENCODER_TMDS, "TMDS" },
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{ DRM_MODE_ENCODER_LVDS, "LVDS" },
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{ DRM_MODE_ENCODER_TVDAC, "TV" },
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{ DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
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{ DRM_MODE_ENCODER_DSI, "DSI" },
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{ DRM_MODE_ENCODER_DPMST, "DP MST" },
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{ DRM_MODE_ENCODER_DPI, "DPI" },
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};
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int drm_encoder_register_all(struct drm_device *dev)
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{
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struct drm_encoder *encoder;
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int ret = 0;
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|
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drm_for_each_encoder(encoder, dev) {
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if (encoder->funcs->late_register)
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ret = encoder->funcs->late_register(encoder);
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if (ret)
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return ret;
|
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}
|
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|
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return 0;
|
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}
|
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|
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void drm_encoder_unregister_all(struct drm_device *dev)
|
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{
|
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struct drm_encoder *encoder;
|
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|
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drm_for_each_encoder(encoder, dev) {
|
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if (encoder->funcs->early_unregister)
|
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encoder->funcs->early_unregister(encoder);
|
||||
}
|
||||
}
|
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|
||||
/**
|
||||
* drm_encoder_init - Init a preallocated encoder
|
||||
* @dev: drm device
|
||||
* @encoder: the encoder to init
|
||||
* @funcs: callbacks for this encoder
|
||||
* @encoder_type: user visible type of the encoder
|
||||
* @name: printf style format string for the encoder name, or NULL for default name
|
||||
*
|
||||
* Initialises a preallocated encoder. Encoder should be
|
||||
* subclassed as part of driver encoder objects.
|
||||
*
|
||||
* Returns:
|
||||
* Zero on success, error code on failure.
|
||||
*/
|
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int drm_encoder_init(struct drm_device *dev,
|
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struct drm_encoder *encoder,
|
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const struct drm_encoder_funcs *funcs,
|
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int encoder_type, const char *name, ...)
|
||||
{
|
||||
int ret;
|
||||
|
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drm_modeset_lock_all(dev);
|
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|
||||
ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
|
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if (ret)
|
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goto out_unlock;
|
||||
|
||||
encoder->dev = dev;
|
||||
encoder->encoder_type = encoder_type;
|
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encoder->funcs = funcs;
|
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if (name) {
|
||||
va_list ap;
|
||||
|
||||
va_start(ap, name);
|
||||
encoder->name = kvasprintf(GFP_KERNEL, name, ap);
|
||||
va_end(ap);
|
||||
} else {
|
||||
encoder->name = kasprintf(GFP_KERNEL, "%s-%d",
|
||||
drm_encoder_enum_list[encoder_type].name,
|
||||
encoder->base.id);
|
||||
}
|
||||
if (!encoder->name) {
|
||||
ret = -ENOMEM;
|
||||
goto out_put;
|
||||
}
|
||||
|
||||
list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
|
||||
encoder->index = dev->mode_config.num_encoder++;
|
||||
|
||||
out_put:
|
||||
if (ret)
|
||||
drm_mode_object_unregister(dev, &encoder->base);
|
||||
|
||||
out_unlock:
|
||||
drm_modeset_unlock_all(dev);
|
||||
|
||||
return ret;
|
||||
}
|
||||
EXPORT_SYMBOL(drm_encoder_init);
|
||||
|
||||
/**
|
||||
* drm_encoder_cleanup - cleans up an initialised encoder
|
||||
* @encoder: encoder to cleanup
|
||||
*
|
||||
* Cleans up the encoder but doesn't free the object.
|
||||
*/
|
||||
void drm_encoder_cleanup(struct drm_encoder *encoder)
|
||||
{
|
||||
struct drm_device *dev = encoder->dev;
|
||||
|
||||
/* Note that the encoder_list is considered to be static; should we
|
||||
* remove the drm_encoder at runtime we would have to decrement all
|
||||
* the indices on the drm_encoder after us in the encoder_list.
|
||||
*/
|
||||
|
||||
drm_modeset_lock_all(dev);
|
||||
drm_mode_object_unregister(dev, &encoder->base);
|
||||
kfree(encoder->name);
|
||||
list_del(&encoder->head);
|
||||
dev->mode_config.num_encoder--;
|
||||
drm_modeset_unlock_all(dev);
|
||||
|
||||
memset(encoder, 0, sizeof(*encoder));
|
||||
}
|
||||
EXPORT_SYMBOL(drm_encoder_cleanup);
|
||||
|
||||
static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder)
|
||||
{
|
||||
struct drm_connector *connector;
|
||||
struct drm_device *dev = encoder->dev;
|
||||
bool uses_atomic = false;
|
||||
|
||||
/* For atomic drivers only state objects are synchronously updated and
|
||||
* protected by modeset locks, so check those first. */
|
||||
drm_for_each_connector(connector, dev) {
|
||||
if (!connector->state)
|
||||
continue;
|
||||
|
||||
uses_atomic = true;
|
||||
|
||||
if (connector->state->best_encoder != encoder)
|
||||
continue;
|
||||
|
||||
return connector->state->crtc;
|
||||
}
|
||||
|
||||
/* Don't return stale data (e.g. pending async disable). */
|
||||
if (uses_atomic)
|
||||
return NULL;
|
||||
|
||||
return encoder->crtc;
|
||||
}
|
||||
|
||||
/**
|
||||
* drm_mode_getencoder - get encoder configuration
|
||||
* @dev: drm device for the ioctl
|
||||
* @data: data pointer for the ioctl
|
||||
* @file_priv: drm file for the ioctl call
|
||||
*
|
||||
* Construct a encoder configuration structure to return to the user.
|
||||
*
|
||||
* Called by the user via ioctl.
|
||||
*
|
||||
* Returns:
|
||||
* Zero on success, negative errno on failure.
|
||||
*/
|
||||
int drm_mode_getencoder(struct drm_device *dev, void *data,
|
||||
struct drm_file *file_priv)
|
||||
{
|
||||
struct drm_mode_get_encoder *enc_resp = data;
|
||||
struct drm_encoder *encoder;
|
||||
struct drm_crtc *crtc;
|
||||
|
||||
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
||||
return -EINVAL;
|
||||
|
||||
encoder = drm_encoder_find(dev, enc_resp->encoder_id);
|
||||
if (!encoder)
|
||||
return -ENOENT;
|
||||
|
||||
drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
|
||||
crtc = drm_encoder_get_crtc(encoder);
|
||||
if (crtc)
|
||||
enc_resp->crtc_id = crtc->base.id;
|
||||
else
|
||||
enc_resp->crtc_id = 0;
|
||||
drm_modeset_unlock(&dev->mode_config.connection_mutex);
|
||||
|
||||
enc_resp->encoder_type = encoder->encoder_type;
|
||||
enc_resp->encoder_id = encoder->base.id;
|
||||
enc_resp->possible_crtcs = encoder->possible_crtcs;
|
||||
enc_resp->possible_clones = encoder->possible_clones;
|
||||
|
||||
return 0;
|
||||
}
|
|
@ -40,6 +40,7 @@
|
|||
#include <drm/drm_framebuffer.h>
|
||||
#include <drm/drm_modes.h>
|
||||
#include <drm/drm_connector.h>
|
||||
#include <drm/drm_encoder.h>
|
||||
|
||||
struct drm_device;
|
||||
struct drm_mode_set;
|
||||
|
@ -661,97 +662,6 @@ struct drm_crtc {
|
|||
struct drm_modeset_acquire_ctx *acquire_ctx;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct drm_encoder_funcs - encoder controls
|
||||
*
|
||||
* Encoders sit between CRTCs and connectors.
|
||||
*/
|
||||
struct drm_encoder_funcs {
|
||||
/**
|
||||
* @reset:
|
||||
*
|
||||
* Reset encoder hardware and software state to off. This function isn't
|
||||
* called by the core directly, only through drm_mode_config_reset().
|
||||
* It's not a helper hook only for historical reasons.
|
||||
*/
|
||||
void (*reset)(struct drm_encoder *encoder);
|
||||
|
||||
/**
|
||||
* @destroy:
|
||||
*
|
||||
* Clean up encoder resources. This is only called at driver unload time
|
||||
* through drm_mode_config_cleanup() since an encoder cannot be
|
||||
* hotplugged in DRM.
|
||||
*/
|
||||
void (*destroy)(struct drm_encoder *encoder);
|
||||
|
||||
/**
|
||||
* @late_register:
|
||||
*
|
||||
* This optional hook can be used to register additional userspace
|
||||
* interfaces attached to the encoder like debugfs interfaces.
|
||||
* It is called late in the driver load sequence from drm_dev_register().
|
||||
* Everything added from this callback should be unregistered in
|
||||
* the early_unregister callback.
|
||||
*
|
||||
* Returns:
|
||||
*
|
||||
* 0 on success, or a negative error code on failure.
|
||||
*/
|
||||
int (*late_register)(struct drm_encoder *encoder);
|
||||
|
||||
/**
|
||||
* @early_unregister:
|
||||
*
|
||||
* This optional hook should be used to unregister the additional
|
||||
* userspace interfaces attached to the encoder from
|
||||
* late_unregister(). It is called from drm_dev_unregister(),
|
||||
* early in the driver unload sequence to disable userspace access
|
||||
* before data structures are torndown.
|
||||
*/
|
||||
void (*early_unregister)(struct drm_encoder *encoder);
|
||||
};
|
||||
|
||||
/**
|
||||
* struct drm_encoder - central DRM encoder structure
|
||||
* @dev: parent DRM device
|
||||
* @head: list management
|
||||
* @base: base KMS object
|
||||
* @name: human readable name, can be overwritten by the driver
|
||||
* @encoder_type: one of the DRM_MODE_ENCODER_<foo> types in drm_mode.h
|
||||
* @possible_crtcs: bitmask of potential CRTC bindings
|
||||
* @possible_clones: bitmask of potential sibling encoders for cloning
|
||||
* @crtc: currently bound CRTC
|
||||
* @bridge: bridge associated to the encoder
|
||||
* @funcs: control functions
|
||||
* @helper_private: mid-layer private data
|
||||
*
|
||||
* CRTCs drive pixels to encoders, which convert them into signals
|
||||
* appropriate for a given connector or set of connectors.
|
||||
*/
|
||||
struct drm_encoder {
|
||||
struct drm_device *dev;
|
||||
struct list_head head;
|
||||
|
||||
struct drm_mode_object base;
|
||||
char *name;
|
||||
int encoder_type;
|
||||
|
||||
/**
|
||||
* @index: Position inside the mode_config.list, can be used as an array
|
||||
* index. It is invariant over the lifetime of the encoder.
|
||||
*/
|
||||
unsigned index;
|
||||
|
||||
uint32_t possible_crtcs;
|
||||
uint32_t possible_clones;
|
||||
|
||||
struct drm_crtc *crtc;
|
||||
struct drm_bridge *bridge;
|
||||
const struct drm_encoder_funcs *funcs;
|
||||
const struct drm_encoder_helper_funcs *helper_private;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct drm_plane_state - mutable plane state
|
||||
* @plane: backpointer to the plane
|
||||
|
@ -2114,7 +2024,6 @@ struct drm_mode_config {
|
|||
for_each_if ((encoder_mask) & (1 << drm_encoder_index(encoder)))
|
||||
|
||||
#define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
|
||||
#define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
|
||||
#define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
|
||||
#define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
|
||||
#define obj_to_property(x) container_of(x, struct drm_property, base)
|
||||
|
@ -2159,37 +2068,6 @@ static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc)
|
|||
return 1 << drm_crtc_index(crtc);
|
||||
}
|
||||
|
||||
extern __printf(5, 6)
|
||||
int drm_encoder_init(struct drm_device *dev,
|
||||
struct drm_encoder *encoder,
|
||||
const struct drm_encoder_funcs *funcs,
|
||||
int encoder_type, const char *name, ...);
|
||||
|
||||
/**
|
||||
* drm_encoder_index - find the index of a registered encoder
|
||||
* @encoder: encoder to find index for
|
||||
*
|
||||
* Given a registered encoder, return the index of that encoder within a DRM
|
||||
* device's list of encoders.
|
||||
*/
|
||||
static inline unsigned int drm_encoder_index(struct drm_encoder *encoder)
|
||||
{
|
||||
return encoder->index;
|
||||
}
|
||||
|
||||
/**
|
||||
* drm_encoder_crtc_ok - can a given crtc drive a given encoder?
|
||||
* @encoder: encoder to test
|
||||
* @crtc: crtc to test
|
||||
*
|
||||
* Return false if @encoder can't be driven by @crtc, true otherwise.
|
||||
*/
|
||||
static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
|
||||
struct drm_crtc *crtc)
|
||||
{
|
||||
return !!(encoder->possible_crtcs & drm_crtc_mask(crtc));
|
||||
}
|
||||
|
||||
extern __printf(8, 9)
|
||||
int drm_universal_plane_init(struct drm_device *dev,
|
||||
struct drm_plane *plane,
|
||||
|
@ -2225,8 +2103,6 @@ extern void drm_crtc_get_hv_timing(const struct drm_display_mode *mode,
|
|||
extern int drm_crtc_force_disable(struct drm_crtc *crtc);
|
||||
extern int drm_crtc_force_disable_all(struct drm_device *dev);
|
||||
|
||||
extern void drm_encoder_cleanup(struct drm_encoder *encoder);
|
||||
|
||||
extern void drm_mode_config_init(struct drm_device *dev);
|
||||
extern void drm_mode_config_reset(struct drm_device *dev);
|
||||
extern void drm_mode_config_cleanup(struct drm_device *dev);
|
||||
|
@ -2338,14 +2214,6 @@ static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
|
|||
return mo ? obj_to_crtc(mo) : NULL;
|
||||
}
|
||||
|
||||
static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
|
||||
uint32_t id)
|
||||
{
|
||||
struct drm_mode_object *mo;
|
||||
mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
|
||||
return mo ? obj_to_encoder(mo) : NULL;
|
||||
}
|
||||
|
||||
static inline struct drm_property *drm_property_find(struct drm_device *dev,
|
||||
uint32_t id)
|
||||
{
|
||||
|
|
|
@ -0,0 +1,167 @@
|
|||
/*
|
||||
* Copyright (c) 2016 Intel Corporation
|
||||
*
|
||||
* Permission to use, copy, modify, distribute, and sell this software and its
|
||||
* documentation for any purpose is hereby granted without fee, provided that
|
||||
* the above copyright notice appear in all copies and that both that copyright
|
||||
* notice and this permission notice appear in supporting documentation, and
|
||||
* that the name of the copyright holders not be used in advertising or
|
||||
* publicity pertaining to distribution of the software without specific,
|
||||
* written prior permission. The copyright holders make no representations
|
||||
* about the suitability of this software for any purpose. It is provided "as
|
||||
* is" without express or implied warranty.
|
||||
*
|
||||
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
||||
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
||||
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
||||
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
||||
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
||||
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
||||
* OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef __DRM_ENCODER_H__
|
||||
#define __DRM_ENCODER_H__
|
||||
|
||||
#include <linux/list.h>
|
||||
#include <linux/ctype.h>
|
||||
#include <drm/drm_modeset.h>
|
||||
|
||||
/**
|
||||
* struct drm_encoder_funcs - encoder controls
|
||||
*
|
||||
* Encoders sit between CRTCs and connectors.
|
||||
*/
|
||||
struct drm_encoder_funcs {
|
||||
/**
|
||||
* @reset:
|
||||
*
|
||||
* Reset encoder hardware and software state to off. This function isn't
|
||||
* called by the core directly, only through drm_mode_config_reset().
|
||||
* It's not a helper hook only for historical reasons.
|
||||
*/
|
||||
void (*reset)(struct drm_encoder *encoder);
|
||||
|
||||
/**
|
||||
* @destroy:
|
||||
*
|
||||
* Clean up encoder resources. This is only called at driver unload time
|
||||
* through drm_mode_config_cleanup() since an encoder cannot be
|
||||
* hotplugged in DRM.
|
||||
*/
|
||||
void (*destroy)(struct drm_encoder *encoder);
|
||||
|
||||
/**
|
||||
* @late_register:
|
||||
*
|
||||
* This optional hook can be used to register additional userspace
|
||||
* interfaces attached to the encoder like debugfs interfaces.
|
||||
* It is called late in the driver load sequence from drm_dev_register().
|
||||
* Everything added from this callback should be unregistered in
|
||||
* the early_unregister callback.
|
||||
*
|
||||
* Returns:
|
||||
*
|
||||
* 0 on success, or a negative error code on failure.
|
||||
*/
|
||||
int (*late_register)(struct drm_encoder *encoder);
|
||||
|
||||
/**
|
||||
* @early_unregister:
|
||||
*
|
||||
* This optional hook should be used to unregister the additional
|
||||
* userspace interfaces attached to the encoder from
|
||||
* late_unregister(). It is called from drm_dev_unregister(),
|
||||
* early in the driver unload sequence to disable userspace access
|
||||
* before data structures are torndown.
|
||||
*/
|
||||
void (*early_unregister)(struct drm_encoder *encoder);
|
||||
};
|
||||
|
||||
/**
|
||||
* struct drm_encoder - central DRM encoder structure
|
||||
* @dev: parent DRM device
|
||||
* @head: list management
|
||||
* @base: base KMS object
|
||||
* @name: human readable name, can be overwritten by the driver
|
||||
* @encoder_type: one of the DRM_MODE_ENCODER_<foo> types in drm_mode.h
|
||||
* @possible_crtcs: bitmask of potential CRTC bindings
|
||||
* @possible_clones: bitmask of potential sibling encoders for cloning
|
||||
* @crtc: currently bound CRTC
|
||||
* @bridge: bridge associated to the encoder
|
||||
* @funcs: control functions
|
||||
* @helper_private: mid-layer private data
|
||||
*
|
||||
* CRTCs drive pixels to encoders, which convert them into signals
|
||||
* appropriate for a given connector or set of connectors.
|
||||
*/
|
||||
struct drm_encoder {
|
||||
struct drm_device *dev;
|
||||
struct list_head head;
|
||||
|
||||
struct drm_mode_object base;
|
||||
char *name;
|
||||
int encoder_type;
|
||||
|
||||
/**
|
||||
* @index: Position inside the mode_config.list, can be used as an array
|
||||
* index. It is invariant over the lifetime of the encoder.
|
||||
*/
|
||||
unsigned index;
|
||||
|
||||
uint32_t possible_crtcs;
|
||||
uint32_t possible_clones;
|
||||
|
||||
struct drm_crtc *crtc;
|
||||
struct drm_bridge *bridge;
|
||||
const struct drm_encoder_funcs *funcs;
|
||||
const struct drm_encoder_helper_funcs *helper_private;
|
||||
};
|
||||
|
||||
#define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
|
||||
|
||||
__printf(5, 6)
|
||||
int drm_encoder_init(struct drm_device *dev,
|
||||
struct drm_encoder *encoder,
|
||||
const struct drm_encoder_funcs *funcs,
|
||||
int encoder_type, const char *name, ...);
|
||||
|
||||
/**
|
||||
* drm_encoder_index - find the index of a registered encoder
|
||||
* @encoder: encoder to find index for
|
||||
*
|
||||
* Given a registered encoder, return the index of that encoder within a DRM
|
||||
* device's list of encoders.
|
||||
*/
|
||||
static inline unsigned int drm_encoder_index(struct drm_encoder *encoder)
|
||||
{
|
||||
return encoder->index;
|
||||
}
|
||||
|
||||
/* FIXME: We have an include file mess still, drm_crtc.h needs untangling. */
|
||||
static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc);
|
||||
|
||||
/**
|
||||
* drm_encoder_crtc_ok - can a given crtc drive a given encoder?
|
||||
* @encoder: encoder to test
|
||||
* @crtc: crtc to test
|
||||
*
|
||||
* Return false if @encoder can't be driven by @crtc, true otherwise.
|
||||
*/
|
||||
static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
|
||||
struct drm_crtc *crtc)
|
||||
{
|
||||
return !!(encoder->possible_crtcs & drm_crtc_mask(crtc));
|
||||
}
|
||||
|
||||
static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
|
||||
uint32_t id)
|
||||
{
|
||||
struct drm_mode_object *mo;
|
||||
mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
|
||||
return mo ? obj_to_encoder(mo) : NULL;
|
||||
}
|
||||
|
||||
void drm_encoder_cleanup(struct drm_encoder *encoder);
|
||||
|
||||
#endif
|
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