-vsp1-y := vsp1_drv.o vsp1_entity.o vsp1_video.o
+vsp1-y := vsp1_drv.o vsp1_entity.o vsp1_pipe.o
+vsp1-y += vsp1_video.o
vsp1-y += vsp1_rpf.o vsp1_rwpf.o vsp1_wpf.o
vsp1-y += vsp1_hsit.o vsp1_lif.o vsp1_lut.o
vsp1-y += vsp1_bru.o vsp1_sru.o vsp1_uds.o
--- /dev/null
+/*
+ * vsp1_pipe.c -- R-Car VSP1 Pipeline
+ *
+ * Copyright (C) 2013-2015 Renesas Electronics Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/list.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+
+#include <media/media-entity.h>
+#include <media/v4l2-subdev.h>
+
+#include "vsp1.h"
+#include "vsp1_bru.h"
+#include "vsp1_entity.h"
+#include "vsp1_pipe.h"
+#include "vsp1_rwpf.h"
+#include "vsp1_uds.h"
+
+/* -----------------------------------------------------------------------------
+ * Pipeline Management
+ */
+
+void vsp1_pipeline_reset(struct vsp1_pipeline *pipe)
+{
+ if (pipe->bru) {
+ struct vsp1_bru *bru = to_bru(&pipe->bru->subdev);
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(bru->inputs); ++i)
+ bru->inputs[i].rpf = NULL;
+ }
+
+ INIT_LIST_HEAD(&pipe->entities);
+ pipe->state = VSP1_PIPELINE_STOPPED;
+ pipe->buffers_ready = 0;
+ pipe->num_inputs = 0;
+ pipe->output = NULL;
+ pipe->bru = NULL;
+ pipe->lif = NULL;
+ pipe->uds = NULL;
+}
+
+void vsp1_pipeline_run(struct vsp1_pipeline *pipe)
+{
+ struct vsp1_device *vsp1 = pipe->output->entity.vsp1;
+
+ vsp1_write(vsp1, VI6_CMD(pipe->output->entity.index), VI6_CMD_STRCMD);
+ pipe->state = VSP1_PIPELINE_RUNNING;
+ pipe->buffers_ready = 0;
+}
+
+bool vsp1_pipeline_stopped(struct vsp1_pipeline *pipe)
+{
+ unsigned long flags;
+ bool stopped;
+
+ spin_lock_irqsave(&pipe->irqlock, flags);
+ stopped = pipe->state == VSP1_PIPELINE_STOPPED;
+ spin_unlock_irqrestore(&pipe->irqlock, flags);
+
+ return stopped;
+}
+
+int vsp1_pipeline_stop(struct vsp1_pipeline *pipe)
+{
+ struct vsp1_entity *entity;
+ unsigned long flags;
+ int ret;
+
+ spin_lock_irqsave(&pipe->irqlock, flags);
+ if (pipe->state == VSP1_PIPELINE_RUNNING)
+ pipe->state = VSP1_PIPELINE_STOPPING;
+ spin_unlock_irqrestore(&pipe->irqlock, flags);
+
+ ret = wait_event_timeout(pipe->wq, vsp1_pipeline_stopped(pipe),
+ msecs_to_jiffies(500));
+ ret = ret == 0 ? -ETIMEDOUT : 0;
+
+ list_for_each_entry(entity, &pipe->entities, list_pipe) {
+ if (entity->route && entity->route->reg)
+ vsp1_write(entity->vsp1, entity->route->reg,
+ VI6_DPR_NODE_UNUSED);
+
+ v4l2_subdev_call(&entity->subdev, video, s_stream, 0);
+ }
+
+ return ret;
+}
+
+bool vsp1_pipeline_ready(struct vsp1_pipeline *pipe)
+{
+ unsigned int mask;
+
+ mask = ((1 << pipe->num_inputs) - 1) << 1;
+ if (!pipe->lif)
+ mask |= 1 << 0;
+
+ return pipe->buffers_ready == mask;
+}
+
+void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe)
+{
+ enum vsp1_pipeline_state state;
+ unsigned long flags;
+
+ if (pipe == NULL)
+ return;
+
+ /* Signal frame end to the pipeline handler. */
+ pipe->frame_end(pipe);
+
+ spin_lock_irqsave(&pipe->irqlock, flags);
+
+ state = pipe->state;
+ pipe->state = VSP1_PIPELINE_STOPPED;
+
+ /* If a stop has been requested, mark the pipeline as stopped and
+ * return.
+ */
+ if (state == VSP1_PIPELINE_STOPPING) {
+ wake_up(&pipe->wq);
+ goto done;
+ }
+
+ /* Restart the pipeline if ready. */
+ if (vsp1_pipeline_ready(pipe))
+ vsp1_pipeline_run(pipe);
+
+done:
+ spin_unlock_irqrestore(&pipe->irqlock, flags);
+}
+
+/*
+ * Propagate the alpha value through the pipeline.
+ *
+ * As the UDS has restricted scaling capabilities when the alpha component needs
+ * to be scaled, we disable alpha scaling when the UDS input has a fixed alpha
+ * value. The UDS then outputs a fixed alpha value which needs to be programmed
+ * from the input RPF alpha.
+ */
+void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
+ struct vsp1_entity *input,
+ unsigned int alpha)
+{
+ struct vsp1_entity *entity;
+ struct media_pad *pad;
+
+ pad = media_entity_remote_pad(&input->pads[RWPF_PAD_SOURCE]);
+
+ while (pad) {
+ if (!is_media_entity_v4l2_subdev(pad->entity))
+ break;
+
+ entity = to_vsp1_entity(media_entity_to_v4l2_subdev(pad->entity));
+
+ /* The BRU background color has a fixed alpha value set to 255,
+ * the output alpha value is thus always equal to 255.
+ */
+ if (entity->type == VSP1_ENTITY_BRU)
+ alpha = 255;
+
+ if (entity->type == VSP1_ENTITY_UDS) {
+ struct vsp1_uds *uds = to_uds(&entity->subdev);
+
+ vsp1_uds_set_alpha(uds, alpha);
+ break;
+ }
+
+ pad = &entity->pads[entity->source_pad];
+ pad = media_entity_remote_pad(pad);
+ }
+}
+
+void vsp1_pipelines_suspend(struct vsp1_device *vsp1)
+{
+ unsigned long flags;
+ unsigned int i;
+ int ret;
+
+ /* To avoid increasing the system suspend time needlessly, loop over the
+ * pipelines twice, first to set them all to the stopping state, and
+ * then to wait for the stop to complete.
+ */
+ for (i = 0; i < vsp1->pdata.wpf_count; ++i) {
+ struct vsp1_rwpf *wpf = vsp1->wpf[i];
+ struct vsp1_pipeline *pipe;
+
+ if (wpf == NULL)
+ continue;
+
+ pipe = to_vsp1_pipeline(&wpf->entity.subdev.entity);
+ if (pipe == NULL)
+ continue;
+
+ spin_lock_irqsave(&pipe->irqlock, flags);
+ if (pipe->state == VSP1_PIPELINE_RUNNING)
+ pipe->state = VSP1_PIPELINE_STOPPING;
+ spin_unlock_irqrestore(&pipe->irqlock, flags);
+ }
+
+ for (i = 0; i < vsp1->pdata.wpf_count; ++i) {
+ struct vsp1_rwpf *wpf = vsp1->wpf[i];
+ struct vsp1_pipeline *pipe;
+
+ if (wpf == NULL)
+ continue;
+
+ pipe = to_vsp1_pipeline(&wpf->entity.subdev.entity);
+ if (pipe == NULL)
+ continue;
+
+ ret = wait_event_timeout(pipe->wq, vsp1_pipeline_stopped(pipe),
+ msecs_to_jiffies(500));
+ if (ret == 0)
+ dev_warn(vsp1->dev, "pipeline %u stop timeout\n",
+ wpf->entity.index);
+ }
+}
+
+void vsp1_pipelines_resume(struct vsp1_device *vsp1)
+{
+ unsigned int i;
+
+ /* Resume pipeline all running pipelines. */
+ for (i = 0; i < vsp1->pdata.wpf_count; ++i) {
+ struct vsp1_rwpf *wpf = vsp1->wpf[i];
+ struct vsp1_pipeline *pipe;
+
+ if (wpf == NULL)
+ continue;
+
+ pipe = to_vsp1_pipeline(&wpf->entity.subdev.entity);
+ if (pipe == NULL)
+ continue;
+
+ if (vsp1_pipeline_ready(pipe))
+ vsp1_pipeline_run(pipe);
+ }
+}
--- /dev/null
+/*
+ * vsp1_pipe.h -- R-Car VSP1 Pipeline
+ *
+ * Copyright (C) 2013-2015 Renesas Electronics Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#ifndef __VSP1_PIPE_H__
+#define __VSP1_PIPE_H__
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+
+#include <media/media-entity.h>
+
+struct vsp1_rwpf;
+
+enum vsp1_pipeline_state {
+ VSP1_PIPELINE_STOPPED,
+ VSP1_PIPELINE_RUNNING,
+ VSP1_PIPELINE_STOPPING,
+};
+
+/*
+ * struct vsp1_pipeline - A VSP1 hardware pipeline
+ * @media: the media pipeline
+ * @irqlock: protects the pipeline state
+ * @lock: protects the pipeline use count and stream count
+ */
+struct vsp1_pipeline {
+ struct media_pipeline pipe;
+
+ spinlock_t irqlock;
+ enum vsp1_pipeline_state state;
+ wait_queue_head_t wq;
+
+ void (*frame_end)(struct vsp1_pipeline *pipe);
+
+ struct mutex lock;
+ unsigned int use_count;
+ unsigned int stream_count;
+ unsigned int buffers_ready;
+
+ unsigned int num_inputs;
+ struct vsp1_rwpf *inputs[VSP1_MAX_RPF];
+ struct vsp1_rwpf *output;
+ struct vsp1_entity *bru;
+ struct vsp1_entity *lif;
+ struct vsp1_entity *uds;
+ struct vsp1_entity *uds_input;
+
+ struct list_head entities;
+};
+
+static inline struct vsp1_pipeline *to_vsp1_pipeline(struct media_entity *e)
+{
+ if (likely(e->pipe))
+ return container_of(e->pipe, struct vsp1_pipeline, pipe);
+ else
+ return NULL;
+}
+
+void vsp1_pipeline_reset(struct vsp1_pipeline *pipe);
+
+void vsp1_pipeline_run(struct vsp1_pipeline *pipe);
+bool vsp1_pipeline_stopped(struct vsp1_pipeline *pipe);
+int vsp1_pipeline_stop(struct vsp1_pipeline *pipe);
+bool vsp1_pipeline_ready(struct vsp1_pipeline *pipe);
+
+void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe);
+
+void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
+ struct vsp1_entity *input,
+ unsigned int alpha);
+
+void vsp1_pipelines_suspend(struct vsp1_device *vsp1);
+void vsp1_pipelines_resume(struct vsp1_device *vsp1);
+
+#endif /* __VSP1_PIPE_H__ */
#include <linux/list.h>
#include <linux/module.h>
#include <linux/mutex.h>
-#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/v4l2-mediabus.h>
#include <linux/videodev2.h>
+#include <linux/wait.h>
#include <media/media-entity.h>
#include <media/v4l2-dev.h>
#include "vsp1.h"
#include "vsp1_bru.h"
#include "vsp1_entity.h"
+#include "vsp1_pipe.h"
#include "vsp1_rwpf.h"
#include "vsp1_uds.h"
#include "vsp1_video.h"
return rval;
}
-static void __vsp1_pipeline_cleanup(struct vsp1_pipeline *pipe)
-{
- if (pipe->bru) {
- struct vsp1_bru *bru = to_bru(&pipe->bru->subdev);
- unsigned int i;
-
- for (i = 0; i < ARRAY_SIZE(bru->inputs); ++i)
- bru->inputs[i].rpf = NULL;
- }
-
- INIT_LIST_HEAD(&pipe->entities);
- pipe->state = VSP1_PIPELINE_STOPPED;
- pipe->buffers_ready = 0;
- pipe->num_inputs = 0;
- pipe->output = NULL;
- pipe->bru = NULL;
- pipe->lif = NULL;
- pipe->uds = NULL;
-}
-
static int vsp1_pipeline_validate(struct vsp1_pipeline *pipe,
struct vsp1_video *video)
{
return 0;
error:
- __vsp1_pipeline_cleanup(pipe);
+ vsp1_pipeline_reset(pipe);
return ret;
}
/* If we're the last user clean up the pipeline. */
if (--pipe->use_count == 0)
- __vsp1_pipeline_cleanup(pipe);
+ vsp1_pipeline_reset(pipe);
mutex_unlock(&pipe->lock);
}
-static void vsp1_pipeline_run(struct vsp1_pipeline *pipe)
-{
- struct vsp1_device *vsp1 = pipe->output->entity.vsp1;
-
- vsp1_write(vsp1, VI6_CMD(pipe->output->entity.index), VI6_CMD_STRCMD);
- pipe->state = VSP1_PIPELINE_RUNNING;
- pipe->buffers_ready = 0;
-}
-
-static bool vsp1_pipeline_stopped(struct vsp1_pipeline *pipe)
-{
- unsigned long flags;
- bool stopped;
-
- spin_lock_irqsave(&pipe->irqlock, flags);
- stopped = pipe->state == VSP1_PIPELINE_STOPPED;
- spin_unlock_irqrestore(&pipe->irqlock, flags);
-
- return stopped;
-}
-
-static int vsp1_pipeline_stop(struct vsp1_pipeline *pipe)
-{
- struct vsp1_entity *entity;
- unsigned long flags;
- int ret;
-
- spin_lock_irqsave(&pipe->irqlock, flags);
- if (pipe->state == VSP1_PIPELINE_RUNNING)
- pipe->state = VSP1_PIPELINE_STOPPING;
- spin_unlock_irqrestore(&pipe->irqlock, flags);
-
- ret = wait_event_timeout(pipe->wq, vsp1_pipeline_stopped(pipe),
- msecs_to_jiffies(500));
- ret = ret == 0 ? -ETIMEDOUT : 0;
-
- list_for_each_entry(entity, &pipe->entities, list_pipe) {
- if (entity->route && entity->route->reg)
- vsp1_write(entity->vsp1, entity->route->reg,
- VI6_DPR_NODE_UNUSED);
-
- v4l2_subdev_call(&entity->subdev, video, s_stream, 0);
- }
-
- return ret;
-}
-
-static bool vsp1_pipeline_ready(struct vsp1_pipeline *pipe)
-{
- unsigned int mask;
-
- mask = ((1 << pipe->num_inputs) - 1) << 1;
- if (!pipe->lif)
- mask |= 1 << 0;
-
- return pipe->buffers_ready == mask;
-}
-
/*
* vsp1_video_complete_buffer - Complete the current buffer
* @video: the video node
vsp1_video_frame_end(pipe, pipe->output);
}
-void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe)
-{
- enum vsp1_pipeline_state state;
- unsigned long flags;
-
- if (pipe == NULL)
- return;
-
- /* Signal frame end to the pipeline handler. */
- pipe->frame_end(pipe);
-
- spin_lock_irqsave(&pipe->irqlock, flags);
-
- state = pipe->state;
- pipe->state = VSP1_PIPELINE_STOPPED;
-
- /* If a stop has been requested, mark the pipeline as stopped and
- * return.
- */
- if (state == VSP1_PIPELINE_STOPPING) {
- wake_up(&pipe->wq);
- goto done;
- }
-
- /* Restart the pipeline if ready. */
- if (vsp1_pipeline_ready(pipe))
- vsp1_pipeline_run(pipe);
-
-done:
- spin_unlock_irqrestore(&pipe->irqlock, flags);
-}
-
-/*
- * Propagate the alpha value through the pipeline.
- *
- * As the UDS has restricted scaling capabilities when the alpha component needs
- * to be scaled, we disable alpha scaling when the UDS input has a fixed alpha
- * value. The UDS then outputs a fixed alpha value which needs to be programmed
- * from the input RPF alpha.
- */
-void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
- struct vsp1_entity *input,
- unsigned int alpha)
-{
- struct vsp1_entity *entity;
- struct media_pad *pad;
-
- pad = media_entity_remote_pad(&input->pads[RWPF_PAD_SOURCE]);
-
- while (pad) {
- if (!is_media_entity_v4l2_subdev(pad->entity))
- break;
-
- entity = to_vsp1_entity(media_entity_to_v4l2_subdev(pad->entity));
-
- /* The BRU background color has a fixed alpha value set to 255,
- * the output alpha value is thus always equal to 255.
- */
- if (entity->type == VSP1_ENTITY_BRU)
- alpha = 255;
-
- if (entity->type == VSP1_ENTITY_UDS) {
- struct vsp1_uds *uds = to_uds(&entity->subdev);
-
- vsp1_uds_set_alpha(uds, alpha);
- break;
- }
-
- pad = &entity->pads[entity->source_pad];
- pad = media_entity_remote_pad(pad);
- }
-}
-
-void vsp1_pipelines_suspend(struct vsp1_device *vsp1)
-{
- unsigned long flags;
- unsigned int i;
- int ret;
-
- /* To avoid increasing the system suspend time needlessly, loop over the
- * pipelines twice, first to set them all to the stopping state, and then
- * to wait for the stop to complete.
- */
- for (i = 0; i < vsp1->pdata.wpf_count; ++i) {
- struct vsp1_rwpf *wpf = vsp1->wpf[i];
- struct vsp1_pipeline *pipe;
-
- if (wpf == NULL)
- continue;
-
- pipe = to_vsp1_pipeline(&wpf->entity.subdev.entity);
- if (pipe == NULL)
- continue;
-
- spin_lock_irqsave(&pipe->irqlock, flags);
- if (pipe->state == VSP1_PIPELINE_RUNNING)
- pipe->state = VSP1_PIPELINE_STOPPING;
- spin_unlock_irqrestore(&pipe->irqlock, flags);
- }
-
- for (i = 0; i < vsp1->pdata.wpf_count; ++i) {
- struct vsp1_rwpf *wpf = vsp1->wpf[i];
- struct vsp1_pipeline *pipe;
-
- if (wpf == NULL)
- continue;
-
- pipe = to_vsp1_pipeline(&wpf->entity.subdev.entity);
- if (pipe == NULL)
- continue;
-
- ret = wait_event_timeout(pipe->wq, vsp1_pipeline_stopped(pipe),
- msecs_to_jiffies(500));
- if (ret == 0)
- dev_warn(vsp1->dev, "pipeline %u stop timeout\n",
- wpf->entity.index);
- }
-}
-
-void vsp1_pipelines_resume(struct vsp1_device *vsp1)
-{
- unsigned int i;
-
- /* Resume pipeline all running pipelines. */
- for (i = 0; i < vsp1->pdata.wpf_count; ++i) {
- struct vsp1_rwpf *wpf = vsp1->wpf[i];
- struct vsp1_pipeline *pipe;
-
- if (wpf == NULL)
- continue;
-
- pipe = to_vsp1_pipeline(&wpf->entity.subdev.entity);
- if (pipe == NULL)
- continue;
-
- if (vsp1_pipeline_ready(pipe))
- vsp1_pipeline_run(pipe);
- }
-}
-
/* -----------------------------------------------------------------------------
* videobuf2 Queue Operations
*/
#include <linux/list.h>
#include <linux/spinlock.h>
-#include <linux/wait.h>
-#include <media/media-entity.h>
#include <media/videobuf2-v4l2.h>
+#include "vsp1_pipe.h"
#include "vsp1_rwpf.h"
-struct vsp1_video;
-
/*
* struct vsp1_format_info - VSP1 video format description
* @mbus: media bus format code
bool alpha;
};
-enum vsp1_pipeline_state {
- VSP1_PIPELINE_STOPPED,
- VSP1_PIPELINE_RUNNING,
- VSP1_PIPELINE_STOPPING,
-};
-
-/*
- * struct vsp1_pipeline - A VSP1 hardware pipeline
- * @media: the media pipeline
- * @irqlock: protects the pipeline state
- * @lock: protects the pipeline use count and stream count
- */
-struct vsp1_pipeline {
- struct media_pipeline pipe;
-
- spinlock_t irqlock;
- enum vsp1_pipeline_state state;
- wait_queue_head_t wq;
-
- void (*frame_end)(struct vsp1_pipeline *pipe);
-
- struct mutex lock;
- unsigned int use_count;
- unsigned int stream_count;
- unsigned int buffers_ready;
-
- unsigned int num_inputs;
- struct vsp1_rwpf *inputs[VSP1_MAX_RPF];
- struct vsp1_rwpf *output;
- struct vsp1_entity *bru;
- struct vsp1_entity *lif;
- struct vsp1_entity *uds;
- struct vsp1_entity *uds_input;
-
- struct list_head entities;
-};
-
-static inline struct vsp1_pipeline *to_vsp1_pipeline(struct media_entity *e)
-{
- if (likely(e->pipe))
- return container_of(e->pipe, struct vsp1_pipeline, pipe);
- else
- return NULL;
-}
-
struct vsp1_vb2_buffer {
struct vb2_v4l2_buffer buf;
struct list_head queue;
struct vsp1_rwpf *rwpf);
void vsp1_video_cleanup(struct vsp1_video *video);
-void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe);
-
-void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
- struct vsp1_entity *input,
- unsigned int alpha);
-
-void vsp1_pipelines_suspend(struct vsp1_device *vsp1);
-void vsp1_pipelines_resume(struct vsp1_device *vsp1);
-
#endif /* __VSP1_VIDEO_H__ */
OSDN Git Service
