[v4,3/3] WIP: drm/logicvc: Add plane colorkey support

Message ID	20191203150606.317062-4-paul.kocialkowski@bootlin.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=JyLx=ZZ=lists.freedesktop.org=dri-devel-bounces@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 60BC5207DD sender: paul.kocialkowski@bootlin.com) by relay8-d.mail.gandi.net (Postfix) with ESMTPSA id 4611E1BF20F; Tue, 3 Dec 2019 15:06:13 +0000 (UTC) From: Paul Kocialkowski <paul.kocialkowski@bootlin.com> To: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 3/3] WIP: drm/logicvc: Add plane colorkey support Date: Tue, 3 Dec 2019 16:06:06 +0100 Message-Id: <20191203150606.317062-4-paul.kocialkowski@bootlin.com> In-Reply-To: <20191203150606.317062-1-paul.kocialkowski@bootlin.com> References: <20191203150606.317062-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 Precedence: list Cc: Mark Rutland <mark.rutland@arm.com>, Thomas Petazzoni <thomas.petazzoni@bootlin.com>, David Airlie <airlied@linux.ie>, Paul Kocialkowski <paul.kocialkowski@bootlin.com>, Rob Herring <robh+dt@kernel.org> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
Series	drm: LogiCVC display controller support \| expand [v4,0/3] drm: LogiCVC display controller support [v4,1/3] dt-bindings: display: Document the Xylon LogiCVC display controller [v4,2/3] drm: Add support for the LogiCVC display controller [v4,3/3] WIP: drm/logicvc: Add plane colorkey support

diff --git a/drivers/gpu/drm/logicvc/logicvc_drm.h b/drivers/gpu/drm/logicvc/logicvc_drm.h index cc728d5a4aee..52f3c09b9659 100644 --- a/drivers/gpu/drm/logicvc/logicvc_drm.h +++ b/drivers/gpu/drm/logicvc/logicvc_drm.h @@ -55,6 +55,9 @@ struct logicvc_drm { struct list_head layers_list; struct logicvc_crtc *crtc; struct logicvc_interface *interface; + + struct drm_property *colorkey_enabled_property; + struct drm_property *colorkey_value_property; }; #endif diff --git a/drivers/gpu/drm/logicvc/logicvc_layer.c b/drivers/gpu/drm/logicvc/logicvc_layer.c index c7b092d592ad..ce821781e148 100644 --- a/drivers/gpu/drm/logicvc/logicvc_layer.c +++ b/drivers/gpu/drm/logicvc/logicvc_layer.c @@ -22,6 +22,8 @@ #define logicvc_layer(p) \ container_of(p, struct logicvc_layer, drm_plane) +#define logicvc_layer_state(p) \ + container_of(p, struct logicvc_layer_state, drm_plane_state) static uint32_t logicvc_layer_formats_rgb16[] = { DRM_FORMAT_RGB565, @@ -131,6 +133,7 @@ static void logicvc_plane_atomic_update(struct drm_plane *drm_plane, struct logicvc_layer *layer = logicvc_layer(drm_plane); struct logicvc_drm *logicvc = layer->logicvc; struct drm_plane_state *state = drm_plane->state; + struct logicvc_layer_state *layer_state = logicvc_layer_state(state); struct drm_crtc *drm_crtc = &logicvc->crtc->drm_crtc; struct drm_display_mode *mode = &drm_crtc->state->adjusted_mode; struct drm_framebuffer *fb = state->fb; @@ -206,6 +209,15 @@ static void logicvc_plane_atomic_update(struct drm_plane *drm_plane, alpha); } + /* Layer colorkey */ + + if (layer_state->colorkey_enabled) { + reg = layer_state->colorkey_value; + + regmap_write(logicvc->regmap, + LOGICVC_LAYER_COLOR_KEY_REG(index), reg); + } + /* Layer control */ reg = LOGICVC_LAYER_CTRL_ENABLE; @@ -213,7 +225,8 @@ static void logicvc_plane_atomic_update(struct drm_plane *drm_plane, if (logicvc_layer_format_inverted(fb->format->format)) reg |= LOGICVC_LAYER_CTRL_PIXEL_FORMAT_INVERT; - reg |= LOGICVC_LAYER_CTRL_COLOR_KEY_DISABLE; + if (!layer_state->colorkey_enabled) + reg |= LOGICVC_LAYER_CTRL_COLOR_KEY_DISABLE; regmap_write(logicvc->regmap, LOGICVC_LAYER_CTRL_REG(index), reg); } @@ -234,13 +247,112 @@ static struct drm_plane_helper_funcs logicvc_plane_helper_funcs = { .atomic_disable = logicvc_plane_atomic_disable, }; +static void logicvc_plane_reset(struct drm_plane *drm_plane) +{ + struct logicvc_layer *layer = logicvc_layer(drm_plane); + struct logicvc_drm *logicvc = layer->logicvc; + struct logicvc_layer_state *layer_state; + + if (drm_plane->state) { + layer_state = logicvc_layer_state(drm_plane->state); + __drm_atomic_helper_plane_destroy_state(drm_plane->state); + devm_kfree(logicvc->drm->dev, layer_state); + drm_plane->state = NULL; + } + + layer_state = devm_kzalloc(logicvc->drm->dev, sizeof(*layer_state), + GFP_KERNEL); + if (!layer_state) + return; + + __drm_atomic_helper_plane_reset(drm_plane, + &layer_state->drm_plane_state); +} + +static struct drm_plane_state *logicvc_plane_atomic_duplicate_state(struct drm_plane *drm_plane) +{ + struct logicvc_layer *layer = logicvc_layer(drm_plane); + struct logicvc_drm *logicvc = layer->logicvc; + struct logicvc_layer_state *layer_state_current; + struct logicvc_layer_state *layer_state; + + if (WARN_ON(!drm_plane->state)) + return NULL; + + layer_state_current = logicvc_layer_state(drm_plane->state); + layer_state = devm_kzalloc(logicvc->drm->dev, sizeof(*layer_state), + GFP_KERNEL); + if (!layer_state) + return NULL; + + layer_state->colorkey_enabled = layer_state_current->colorkey_enabled; + layer_state->colorkey_value = layer_state_current->colorkey_value; + + __drm_atomic_helper_plane_duplicate_state(drm_plane, + &layer_state->drm_plane_state); + + return &layer_state->drm_plane_state; +} + +static void logicvc_plane_destroy_state(struct drm_plane *drm_plane, + struct drm_plane_state *state) +{ + struct logicvc_layer *layer = logicvc_layer(drm_plane); + struct logicvc_drm *logicvc = layer->logicvc; + struct logicvc_layer_state *layer_state = logicvc_layer_state(state); + + __drm_atomic_helper_plane_destroy_state(&layer_state->drm_plane_state); + + devm_kfree(logicvc->drm->dev, layer_state); +} + +static int logicvc_plane_atomic_set_property(struct drm_plane *drm_plane, + struct drm_plane_state *state, + struct drm_property *property, + uint64_t value) +{ + struct logicvc_layer *layer = logicvc_layer(drm_plane); + struct logicvc_drm *logicvc = layer->logicvc; + struct logicvc_layer_state *layer_state = logicvc_layer_state(state); + + if (property == logicvc->colorkey_enabled_property) + layer_state->colorkey_enabled = !!value; + else if (property == logicvc->colorkey_value_property) + layer_state->colorkey_value = (uint32_t)value; + else + return -ENOENT; + + return 0; +} + +static int logicvc_plane_atomic_get_property(struct drm_plane *drm_plane, + const struct drm_plane_state *state, + struct drm_property *property, + uint64_t *value) +{ + struct logicvc_layer *layer = logicvc_layer(drm_plane); + struct logicvc_drm *logicvc = layer->logicvc; + struct logicvc_layer_state *layer_state = logicvc_layer_state(state); + + if (property == logicvc->colorkey_enabled_property) + *value = layer_state->colorkey_enabled; + else if (property == logicvc->colorkey_value_property) + *value = layer_state->colorkey_value; + else + return -ENOENT; + + return 0; +} + static const struct drm_plane_funcs logicvc_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .destroy = drm_plane_cleanup, - .reset = drm_atomic_helper_plane_reset, - .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, - .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, + .reset = logicvc_plane_reset, + .atomic_duplicate_state = logicvc_plane_atomic_duplicate_state, + .atomic_destroy_state = logicvc_plane_destroy_state, + .atomic_set_property = logicvc_plane_atomic_set_property, + .atomic_get_property = logicvc_plane_atomic_get_property, }; int logicvc_layer_buffer_find_setup(struct logicvc_layer *layer, @@ -508,6 +620,11 @@ static int logicvc_layer_init(struct logicvc_drm *logicvc, drm_plane_create_zpos_immutable_property(&layer->drm_plane, zpos); + drm_object_attach_property(&layer->drm_plane.base, + logicvc->colorkey_enabled_property, 0); + drm_object_attach_property(&layer->drm_plane.base, + logicvc->colorkey_value_property, 0); + DRM_DEBUG_DRIVER("Registering layer #%d\n", index); layer->formats = formats; @@ -545,6 +662,7 @@ void logicvc_layers_attach_crtc(struct logicvc_drm *logicvc) int logicvc_layers_init(struct logicvc_drm *logicvc) { + struct drm_device *drm = logicvc->drm; struct device_node *of_node = logicvc->drm->dev->of_node; struct device_node *layer_node = NULL; struct device_node *layers_node; @@ -552,6 +670,17 @@ int logicvc_layers_init(struct logicvc_drm *logicvc) struct logicvc_layer *next; int ret = 0; + logicvc->colorkey_enabled_property = + drm_property_create_bool(drm, 0, "colorkey_enabled"); + if (!logicvc->colorkey_enabled_property) + goto error; + + logicvc->colorkey_value_property = + drm_property_create_range(drm, 0, "colorkey_value", + 0, 0xffffffff); + if (!logicvc->colorkey_value_property) + goto error; + layers_node = of_get_child_by_name(of_node, "layers"); if (!layers_node) { DRM_ERROR("No layers node found in the description\n"); @@ -590,5 +719,15 @@ int logicvc_layers_init(struct logicvc_drm *logicvc) list_for_each_entry_safe(layer, next, &logicvc->layers_list, list) logicvc_layer_fini(logicvc, layer); + if (logicvc->colorkey_value_property) { + drm_property_destroy(drm, logicvc->colorkey_value_property); + logicvc->colorkey_value_property = NULL; + } + + if (logicvc->colorkey_enabled_property) { + drm_property_destroy(drm, logicvc->colorkey_enabled_property); + logicvc->colorkey_enabled_property = NULL; + } + return ret; } diff --git a/drivers/gpu/drm/logicvc/logicvc_layer.h b/drivers/gpu/drm/logicvc/logicvc_layer.h index 71b3f177b093..2fb161217081 100644 --- a/drivers/gpu/drm/logicvc/logicvc_layer.h +++ b/drivers/gpu/drm/logicvc/logicvc_layer.h @@ -39,6 +39,13 @@ struct logicvc_layer_formats { uint32_t *formats; }; +struct logicvc_layer_state { + struct drm_plane_state drm_plane_state; + + bool colorkey_enabled; + uint32_t colorkey_value; +}; + struct logicvc_layer { struct logicvc_drm *logicvc;

[v4,3/3] WIP: drm/logicvc: Add plane colorkey support

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