diff options
Diffstat (limited to 'drivers/media/platform/omap3isp')
| -rw-r--r-- | drivers/media/platform/omap3isp/isp.c | 226 | ||||
| -rw-r--r-- | drivers/media/platform/omap3isp/isp.h | 4 | ||||
| -rw-r--r-- | drivers/media/platform/omap3isp/ispccdc.c | 2 | ||||
| -rw-r--r-- | drivers/media/platform/omap3isp/isppreview.c | 14 | ||||
| -rw-r--r-- | drivers/media/platform/omap3isp/ispvideo.c | 116 | ||||
| -rw-r--r-- | drivers/media/platform/omap3isp/ispvideo.h | 1 | ||||
| -rw-r--r-- | drivers/media/platform/omap3isp/omap3isp.h | 8 |
7 files changed, 94 insertions, 277 deletions
diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c index 0bcfa553c1aa..5d54e2c6c16b 100644 --- a/drivers/media/platform/omap3isp/isp.c +++ b/drivers/media/platform/omap3isp/isp.c @@ -64,6 +64,7 @@ #include <media/v4l2-common.h> #include <media/v4l2-device.h> +#include <media/v4l2-mc.h> #include <media/v4l2-of.h> #include "isp.h" @@ -449,7 +450,7 @@ void omap3isp_configure_bridge(struct isp_device *isp, case CCDC_INPUT_PARALLEL: ispctrl_val |= ISPCTRL_PAR_SER_CLK_SEL_PARALLEL; ispctrl_val |= parcfg->clk_pol << ISPCTRL_PAR_CLK_POL_SHIFT; - shift += parcfg->data_lane_shift * 2; + shift += parcfg->data_lane_shift; break; case CCDC_INPUT_CSI2A: @@ -657,216 +658,6 @@ static irqreturn_t isp_isr(int irq, void *_isp) } /* ----------------------------------------------------------------------------- - * Pipeline power management - * - * Entities must be powered up when part of a pipeline that contains at least - * one open video device node. - * - * To achieve this use the entity use_count field to track the number of users. - * For entities corresponding to video device nodes the use_count field stores - * the users count of the node. For entities corresponding to subdevs the - * use_count field stores the total number of users of all video device nodes - * in the pipeline. - * - * The omap3isp_pipeline_pm_use() function must be called in the open() and - * close() handlers of video device nodes. It increments or decrements the use - * count of all subdev entities in the pipeline. - * - * To react to link management on powered pipelines, the link setup notification - * callback updates the use count of all entities in the source and sink sides - * of the link. - */ - -/* - * isp_pipeline_pm_use_count - Count the number of users of a pipeline - * @entity: The entity - * - * Return the total number of users of all video device nodes in the pipeline. - */ -static int isp_pipeline_pm_use_count(struct media_entity *entity, - struct media_entity_graph *graph) -{ - int use = 0; - - media_entity_graph_walk_start(graph, entity); - - while ((entity = media_entity_graph_walk_next(graph))) { - if (is_media_entity_v4l2_io(entity)) - use += entity->use_count; - } - - return use; -} - -/* - * isp_pipeline_pm_power_one - Apply power change to an entity - * @entity: The entity - * @change: Use count change - * - * Change the entity use count by @change. If the entity is a subdev update its - * power state by calling the core::s_power operation when the use count goes - * from 0 to != 0 or from != 0 to 0. - * - * Return 0 on success or a negative error code on failure. - */ -static int isp_pipeline_pm_power_one(struct media_entity *entity, int change) -{ - struct v4l2_subdev *subdev; - int ret; - - subdev = is_media_entity_v4l2_subdev(entity) - ? media_entity_to_v4l2_subdev(entity) : NULL; - - if (entity->use_count == 0 && change > 0 && subdev != NULL) { - ret = v4l2_subdev_call(subdev, core, s_power, 1); - if (ret < 0 && ret != -ENOIOCTLCMD) - return ret; - } - - entity->use_count += change; - WARN_ON(entity->use_count < 0); - - if (entity->use_count == 0 && change < 0 && subdev != NULL) - v4l2_subdev_call(subdev, core, s_power, 0); - - return 0; -} - -/* - * isp_pipeline_pm_power - Apply power change to all entities in a pipeline - * @entity: The entity - * @change: Use count change - * - * Walk the pipeline to update the use count and the power state of all non-node - * entities. - * - * Return 0 on success or a negative error code on failure. - */ -static int isp_pipeline_pm_power(struct media_entity *entity, int change, - struct media_entity_graph *graph) -{ - struct media_entity *first = entity; - int ret = 0; - - if (!change) - return 0; - - media_entity_graph_walk_start(graph, entity); - - while (!ret && (entity = media_entity_graph_walk_next(graph))) - if (is_media_entity_v4l2_subdev(entity)) - ret = isp_pipeline_pm_power_one(entity, change); - - if (!ret) - return ret; - - media_entity_graph_walk_start(graph, first); - - while ((first = media_entity_graph_walk_next(graph)) - && first != entity) - if (is_media_entity_v4l2_subdev(first)) - isp_pipeline_pm_power_one(first, -change); - - return ret; -} - -/* - * omap3isp_pipeline_pm_use - Update the use count of an entity - * @entity: The entity - * @use: Use (1) or stop using (0) the entity - * - * Update the use count of all entities in the pipeline and power entities on or - * off accordingly. - * - * Return 0 on success or a negative error code on failure. Powering entities - * off is assumed to never fail. No failure can occur when the use parameter is - * set to 0. - */ -int omap3isp_pipeline_pm_use(struct media_entity *entity, int use, - struct media_entity_graph *graph) -{ - int change = use ? 1 : -1; - int ret; - - mutex_lock(&entity->graph_obj.mdev->graph_mutex); - - /* Apply use count to node. */ - entity->use_count += change; - WARN_ON(entity->use_count < 0); - - /* Apply power change to connected non-nodes. */ - ret = isp_pipeline_pm_power(entity, change, graph); - if (ret < 0) - entity->use_count -= change; - - mutex_unlock(&entity->graph_obj.mdev->graph_mutex); - - return ret; -} - -/* - * isp_pipeline_link_notify - Link management notification callback - * @link: The link - * @flags: New link flags that will be applied - * @notification: The link's state change notification type (MEDIA_DEV_NOTIFY_*) - * - * React to link management on powered pipelines by updating the use count of - * all entities in the source and sink sides of the link. Entities are powered - * on or off accordingly. - * - * Return 0 on success or a negative error code on failure. Powering entities - * off is assumed to never fail. This function will not fail for disconnection - * events. - */ -static int isp_pipeline_link_notify(struct media_link *link, u32 flags, - unsigned int notification) -{ - struct media_entity_graph *graph = - &container_of(link->graph_obj.mdev, struct isp_device, - media_dev)->pm_count_graph; - struct media_entity *source = link->source->entity; - struct media_entity *sink = link->sink->entity; - int source_use; - int sink_use; - int ret = 0; - - if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH) { - ret = media_entity_graph_walk_init(graph, - link->graph_obj.mdev); - if (ret) - return ret; - } - - source_use = isp_pipeline_pm_use_count(source, graph); - sink_use = isp_pipeline_pm_use_count(sink, graph); - - if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && - !(flags & MEDIA_LNK_FL_ENABLED)) { - /* Powering off entities is assumed to never fail. */ - isp_pipeline_pm_power(source, -sink_use, graph); - isp_pipeline_pm_power(sink, -source_use, graph); - return 0; - } - - if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH && - (flags & MEDIA_LNK_FL_ENABLED)) { - - ret = isp_pipeline_pm_power(source, sink_use, graph); - if (ret < 0) - return ret; - - ret = isp_pipeline_pm_power(sink, source_use, graph); - if (ret < 0) - isp_pipeline_pm_power(source, -sink_use, graph); - } - - if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH) - media_entity_graph_walk_cleanup(graph); - - return ret; -} - -/* ----------------------------------------------------------------------------- * Pipeline stream management */ @@ -1889,7 +1680,7 @@ static int isp_register_entities(struct isp_device *isp) strlcpy(isp->media_dev.model, "TI OMAP3 ISP", sizeof(isp->media_dev.model)); isp->media_dev.hw_revision = isp->revision; - isp->media_dev.link_notify = isp_pipeline_link_notify; + isp->media_dev.link_notify = v4l2_pipeline_link_notify; media_device_init(&isp->media_dev); isp->v4l2_dev.mdev = &isp->media_dev; @@ -2235,8 +2026,11 @@ static int isp_of_parse_node(struct device *dev, struct device_node *node, struct isp_bus_cfg *buscfg = &isd->bus; struct v4l2_of_endpoint vep; unsigned int i; + int ret; - v4l2_of_parse_endpoint(node, &vep); + ret = v4l2_of_parse_endpoint(node, &vep); + if (ret) + return ret; dev_dbg(dev, "parsing endpoint %s, interface %u\n", node->full_name, vep.base.port); @@ -2528,12 +2322,13 @@ static int isp_probe(struct platform_device *pdev) } /* Interrupt */ - isp->irq_num = platform_get_irq(pdev, 0); - if (isp->irq_num <= 0) { + ret = platform_get_irq(pdev, 0); + if (ret <= 0) { dev_err(isp->dev, "No IRQ resource\n"); ret = -ENODEV; goto error_iommu; } + isp->irq_num = ret; if (devm_request_irq(isp->dev, isp->irq_num, isp_isr, IRQF_SHARED, "OMAP3 ISP", isp)) { @@ -2599,6 +2394,7 @@ static const struct of_device_id omap3isp_of_table[] = { { .compatible = "ti,omap3-isp" }, { }, }; +MODULE_DEVICE_TABLE(of, omap3isp_of_table); static struct platform_driver omap3isp_driver = { .probe = isp_probe, diff --git a/drivers/media/platform/omap3isp/isp.h b/drivers/media/platform/omap3isp/isp.h index 49b7f71ac968..7e6f6638433b 100644 --- a/drivers/media/platform/omap3isp/isp.h +++ b/drivers/media/platform/omap3isp/isp.h @@ -177,7 +177,6 @@ struct isp_device { struct v4l2_device v4l2_dev; struct v4l2_async_notifier notifier; struct media_device media_dev; - struct media_entity_graph pm_count_graph; struct device *dev; u32 revision; @@ -267,9 +266,6 @@ void omap3isp_subclk_enable(struct isp_device *isp, void omap3isp_subclk_disable(struct isp_device *isp, enum isp_subclk_resource res); -int omap3isp_pipeline_pm_use(struct media_entity *entity, int use, - struct media_entity_graph *graph); - int omap3isp_register_entities(struct platform_device *pdev, struct v4l2_device *v4l2_dev); void omap3isp_unregister_entities(struct platform_device *pdev); diff --git a/drivers/media/platform/omap3isp/ispccdc.c b/drivers/media/platform/omap3isp/ispccdc.c index bb3974c98e37..882310eb45cc 100644 --- a/drivers/media/platform/omap3isp/ispccdc.c +++ b/drivers/media/platform/omap3isp/ispccdc.c @@ -2421,7 +2421,7 @@ static int ccdc_link_validate(struct v4l2_subdev *sd, &((struct isp_bus_cfg *) media_entity_to_v4l2_subdev(link->source->entity) ->host_priv)->bus.parallel; - parallel_shift = parcfg->data_lane_shift * 2; + parallel_shift = parcfg->data_lane_shift; } else { parallel_shift = 0; } diff --git a/drivers/media/platform/omap3isp/isppreview.c b/drivers/media/platform/omap3isp/isppreview.c index 84a96670e2e7..ac30a0f83780 100644 --- a/drivers/media/platform/omap3isp/isppreview.c +++ b/drivers/media/platform/omap3isp/isppreview.c @@ -1480,13 +1480,6 @@ static void preview_isr_buffer(struct isp_prev_device *prev) struct isp_buffer *buffer; int restart = 0; - if (prev->input == PREVIEW_INPUT_MEMORY) { - buffer = omap3isp_video_buffer_next(&prev->video_in); - if (buffer != NULL) - preview_set_inaddr(prev, buffer->dma); - pipe->state |= ISP_PIPELINE_IDLE_INPUT; - } - if (prev->output & PREVIEW_OUTPUT_MEMORY) { buffer = omap3isp_video_buffer_next(&prev->video_out); if (buffer != NULL) { @@ -1496,6 +1489,13 @@ static void preview_isr_buffer(struct isp_prev_device *prev) pipe->state |= ISP_PIPELINE_IDLE_OUTPUT; } + if (prev->input == PREVIEW_INPUT_MEMORY) { + buffer = omap3isp_video_buffer_next(&prev->video_in); + if (buffer != NULL) + preview_set_inaddr(prev, buffer->dma); + pipe->state |= ISP_PIPELINE_IDLE_INPUT; + } + switch (prev->state) { case ISP_PIPELINE_STREAM_SINGLESHOT: if (isp_pipeline_ready(pipe)) diff --git a/drivers/media/platform/omap3isp/ispvideo.c b/drivers/media/platform/omap3isp/ispvideo.c index 994dfc0813f6..ac76d2901501 100644 --- a/drivers/media/platform/omap3isp/ispvideo.c +++ b/drivers/media/platform/omap3isp/ispvideo.c @@ -22,8 +22,10 @@ #include <linux/sched.h> #include <linux/slab.h> #include <linux/vmalloc.h> + #include <media/v4l2-dev.h> #include <media/v4l2-ioctl.h> +#include <media/v4l2-mc.h> #include <media/videobuf2-dma-contig.h> #include "ispvideo.h" @@ -434,10 +436,68 @@ static void isp_video_buffer_queue(struct vb2_buffer *buf) } } +/* + * omap3isp_video_return_buffers - Return all queued buffers to videobuf2 + * @video: ISP video object + * @state: new state for the returned buffers + * + * Return all buffers queued on the video node to videobuf2 in the given state. + * The buffer state should be VB2_BUF_STATE_QUEUED if called due to an error + * when starting the stream, or VB2_BUF_STATE_ERROR otherwise. + * + * The function must be called with the video irqlock held. + */ +static void omap3isp_video_return_buffers(struct isp_video *video, + enum vb2_buffer_state state) +{ + while (!list_empty(&video->dmaqueue)) { + struct isp_buffer *buf; + + buf = list_first_entry(&video->dmaqueue, + struct isp_buffer, irqlist); + list_del(&buf->irqlist); + vb2_buffer_done(&buf->vb.vb2_buf, state); + } +} + +static int isp_video_start_streaming(struct vb2_queue *queue, + unsigned int count) +{ + struct isp_video_fh *vfh = vb2_get_drv_priv(queue); + struct isp_video *video = vfh->video; + struct isp_pipeline *pipe = to_isp_pipeline(&video->video.entity); + unsigned long flags; + int ret; + + /* In sensor-to-memory mode, the stream can be started synchronously + * to the stream on command. In memory-to-memory mode, it will be + * started when buffers are queued on both the input and output. + */ + if (pipe->input) + return 0; + + ret = omap3isp_pipeline_set_stream(pipe, + ISP_PIPELINE_STREAM_CONTINUOUS); + if (ret < 0) { + spin_lock_irqsave(&video->irqlock, flags); + omap3isp_video_return_buffers(video, VB2_BUF_STATE_QUEUED); + spin_unlock_irqrestore(&video->irqlock, flags); + return ret; + } + + spin_lock_irqsave(&video->irqlock, flags); + if (list_empty(&video->dmaqueue)) + video->dmaqueue_flags |= ISP_VIDEO_DMAQUEUE_UNDERRUN; + spin_unlock_irqrestore(&video->irqlock, flags); + + return 0; +} + static const struct vb2_ops isp_video_queue_ops = { .queue_setup = isp_video_queue_setup, .buf_prepare = isp_video_buffer_prepare, .buf_queue = isp_video_buffer_queue, + .start_streaming = isp_video_start_streaming, }; /* @@ -459,7 +519,7 @@ static const struct vb2_ops isp_video_queue_ops = { struct isp_buffer *omap3isp_video_buffer_next(struct isp_video *video) { struct isp_pipeline *pipe = to_isp_pipeline(&video->video.entity); - enum isp_pipeline_state state; + enum vb2_buffer_state vb_state; struct isp_buffer *buf; unsigned long flags; @@ -495,17 +555,19 @@ struct isp_buffer *omap3isp_video_buffer_next(struct isp_video *video) /* Report pipeline errors to userspace on the capture device side. */ if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && pipe->error) { - state = VB2_BUF_STATE_ERROR; + vb_state = VB2_BUF_STATE_ERROR; pipe->error = false; } else { - state = VB2_BUF_STATE_DONE; + vb_state = VB2_BUF_STATE_DONE; } - vb2_buffer_done(&buf->vb.vb2_buf, state); + vb2_buffer_done(&buf->vb.vb2_buf, vb_state); spin_lock_irqsave(&video->irqlock, flags); if (list_empty(&video->dmaqueue)) { + enum isp_pipeline_state state; + spin_unlock_irqrestore(&video->irqlock, flags); if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) @@ -541,26 +603,16 @@ struct isp_buffer *omap3isp_video_buffer_next(struct isp_video *video) * omap3isp_video_cancel_stream - Cancel stream on a video node * @video: ISP video object * - * Cancelling a stream mark all buffers on the video node as erroneous and makes - * sure no new buffer can be queued. + * Cancelling a stream returns all buffers queued on the video node to videobuf2 + * in the erroneous state and makes sure no new buffer can be queued. */ void omap3isp_video_cancel_stream(struct isp_video *video) { unsigned long flags; spin_lock_irqsave(&video->irqlock, flags); - - while (!list_empty(&video->dmaqueue)) { - struct isp_buffer *buf; - - buf = list_first_entry(&video->dmaqueue, - struct isp_buffer, irqlist); - list_del(&buf->irqlist); - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); - } - + omap3isp_video_return_buffers(video, VB2_BUF_STATE_ERROR); video->error = true; - spin_unlock_irqrestore(&video->irqlock, flags); } @@ -1087,29 +1139,10 @@ isp_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type) if (ret < 0) goto err_check_format; - /* In sensor-to-memory mode, the stream can be started synchronously - * to the stream on command. In memory-to-memory mode, it will be - * started when buffers are queued on both the input and output. - */ - if (pipe->input == NULL) { - ret = omap3isp_pipeline_set_stream(pipe, - ISP_PIPELINE_STREAM_CONTINUOUS); - if (ret < 0) - goto err_set_stream; - spin_lock_irqsave(&video->irqlock, flags); - if (list_empty(&video->dmaqueue)) - video->dmaqueue_flags |= ISP_VIDEO_DMAQUEUE_UNDERRUN; - spin_unlock_irqrestore(&video->irqlock, flags); - } - mutex_unlock(&video->stream_lock); return 0; -err_set_stream: - mutex_lock(&video->queue_lock); - vb2_streamoff(&vfh->queue, type); - mutex_unlock(&video->queue_lock); err_check_format: media_entity_pipeline_stop(&video->video.entity); err_pipeline_start: @@ -1261,12 +1294,7 @@ static int isp_video_open(struct file *file) goto done; } - ret = media_entity_graph_walk_init(&handle->graph, - &video->isp->media_dev); - if (ret) - goto done; - - ret = omap3isp_pipeline_pm_use(&video->video.entity, 1, &handle->graph); + ret = v4l2_pipeline_pm_use(&video->video.entity, 1); if (ret < 0) { omap3isp_put(video->isp); goto done; @@ -1297,7 +1325,6 @@ static int isp_video_open(struct file *file) done: if (ret < 0) { v4l2_fh_del(&handle->vfh); - media_entity_graph_walk_cleanup(&handle->graph); kfree(handle); } @@ -1317,8 +1344,7 @@ static int isp_video_release(struct file *file) vb2_queue_release(&handle->queue); mutex_unlock(&video->queue_lock); - omap3isp_pipeline_pm_use(&video->video.entity, 0, &handle->graph); - media_entity_graph_walk_cleanup(&handle->graph); + v4l2_pipeline_pm_use(&video->video.entity, 0); /* Release the file handle. */ v4l2_fh_del(vfh); diff --git a/drivers/media/platform/omap3isp/ispvideo.h b/drivers/media/platform/omap3isp/ispvideo.h index 156429878d64..6a48d5879c56 100644 --- a/drivers/media/platform/omap3isp/ispvideo.h +++ b/drivers/media/platform/omap3isp/ispvideo.h @@ -189,7 +189,6 @@ struct isp_video_fh { struct vb2_queue queue; struct v4l2_format format; struct v4l2_fract timeperframe; - struct media_entity_graph graph; }; #define to_isp_video_fh(fh) container_of(fh, struct isp_video_fh, vfh) diff --git a/drivers/media/platform/omap3isp/omap3isp.h b/drivers/media/platform/omap3isp/omap3isp.h index 190e259a6a2d..443e8f7673e2 100644 --- a/drivers/media/platform/omap3isp/omap3isp.h +++ b/drivers/media/platform/omap3isp/omap3isp.h @@ -33,9 +33,9 @@ enum isp_interface_type { * struct isp_parallel_cfg - Parallel interface configuration * @data_lane_shift: Data lane shifter * 0 - CAMEXT[13:0] -> CAM[13:0] - * 1 - CAMEXT[13:2] -> CAM[11:0] - * 2 - CAMEXT[13:4] -> CAM[9:0] - * 3 - CAMEXT[13:6] -> CAM[7:0] + * 2 - CAMEXT[13:2] -> CAM[11:0] + * 4 - CAMEXT[13:4] -> CAM[9:0] + * 6 - CAMEXT[13:6] -> CAM[7:0] * @clk_pol: Pixel clock polarity * 0 - Sample on rising edge, 1 - Sample on falling edge * @hs_pol: Horizontal synchronization polarity @@ -48,7 +48,7 @@ enum isp_interface_type { * 0 - Normal, 1 - One's complement */ struct isp_parallel_cfg { - unsigned int data_lane_shift:2; + unsigned int data_lane_shift:3; unsigned int clk_pol:1; unsigned int hs_pol:1; unsigned int vs_pol:1; |