/* * 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 #include #include #include #include #include #include "vsp1.h" #include "vsp1_bru.h" #include "vsp1_dl.h" #include "vsp1_entity.h" #include "vsp1_pipe.h" #include "vsp1_rwpf.h" #include "vsp1_uds.h" /* ----------------------------------------------------------------------------- * Helper Functions */ static const struct vsp1_format_info vsp1_video_formats[] = { { V4L2_PIX_FMT_RGB332, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_RGB_332, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 1, { 8, 0, 0 }, false, false, 1, 1, false }, { V4L2_PIX_FMT_ARGB444, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_ARGB_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS, 1, { 16, 0, 0 }, false, false, 1, 1, true }, { V4L2_PIX_FMT_XRGB444, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_XRGB_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS, 1, { 16, 0, 0 }, false, false, 1, 1, false }, { V4L2_PIX_FMT_ARGB555, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_ARGB_1555, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS, 1, { 16, 0, 0 }, false, false, 1, 1, true }, { V4L2_PIX_FMT_XRGB555, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_XRGB_1555, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS, 1, { 16, 0, 0 }, false, false, 1, 1, false }, { V4L2_PIX_FMT_RGB565, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_RGB_565, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS, 1, { 16, 0, 0 }, false, false, 1, 1, false }, { V4L2_PIX_FMT_BGR24, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_BGR_888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 1, { 24, 0, 0 }, false, false, 1, 1, false }, { V4L2_PIX_FMT_RGB24, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_RGB_888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 1, { 24, 0, 0 }, false, false, 1, 1, false }, { V4L2_PIX_FMT_ABGR32, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS, 1, { 32, 0, 0 }, false, false, 1, 1, true }, { V4L2_PIX_FMT_XBGR32, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS, 1, { 32, 0, 0 }, false, false, 1, 1, false }, { V4L2_PIX_FMT_ARGB32, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 1, { 32, 0, 0 }, false, false, 1, 1, true }, { V4L2_PIX_FMT_XRGB32, MEDIA_BUS_FMT_ARGB8888_1X32, VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 1, { 32, 0, 0 }, false, false, 1, 1, false }, { V4L2_PIX_FMT_UYVY, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 1, { 16, 0, 0 }, false, false, 2, 1, false }, { V4L2_PIX_FMT_VYUY, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 1, { 16, 0, 0 }, false, true, 2, 1, false }, { V4L2_PIX_FMT_YUYV, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 1, { 16, 0, 0 }, true, false, 2, 1, false }, { V4L2_PIX_FMT_YVYU, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 1, { 16, 0, 0 }, true, true, 2, 1, false }, { V4L2_PIX_FMT_NV12M, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_Y_UV_420, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 2, { 8, 16, 0 }, false, false, 2, 2, false }, { V4L2_PIX_FMT_NV21M, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_Y_UV_420, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 2, { 8, 16, 0 }, false, true, 2, 2, false }, { V4L2_PIX_FMT_NV16M, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_Y_UV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 2, { 8, 16, 0 }, false, false, 2, 1, false }, { V4L2_PIX_FMT_NV61M, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_Y_UV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 2, { 8, 16, 0 }, false, true, 2, 1, false }, { V4L2_PIX_FMT_YUV420M, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_Y_U_V_420, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 3, { 8, 8, 8 }, false, false, 2, 2, false }, { V4L2_PIX_FMT_YVU420M, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_Y_U_V_420, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 3, { 8, 8, 8 }, false, true, 2, 2, false }, { V4L2_PIX_FMT_YUV422M, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_Y_U_V_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 3, { 8, 8, 8 }, false, false, 2, 1, false }, { V4L2_PIX_FMT_YVU422M, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_Y_U_V_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 3, { 8, 8, 8 }, false, true, 2, 1, false }, { V4L2_PIX_FMT_YUV444M, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_Y_U_V_444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 3, { 8, 8, 8 }, false, false, 1, 1, false }, { V4L2_PIX_FMT_YVU444M, MEDIA_BUS_FMT_AYUV8_1X32, VI6_FMT_Y_U_V_444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS | VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS, 3, { 8, 8, 8 }, false, true, 1, 1, false }, }; /* * vsp1_get_format_info - Retrieve format information for a 4CC * @vsp1: the VSP1 device * @fourcc: the format 4CC * * Return a pointer to the format information structure corresponding to the * given V4L2 format 4CC, or NULL if no corresponding format can be found. */ const struct vsp1_format_info *vsp1_get_format_info(struct vsp1_device *vsp1, u32 fourcc) { unsigned int i; /* Special case, the VYUY format is supported on Gen2 only. */ if (vsp1->info->gen != 2 && fourcc == V4L2_PIX_FMT_VYUY) return NULL; for (i = 0; i < ARRAY_SIZE(vsp1_video_formats); ++i) { const struct vsp1_format_info *info = &vsp1_video_formats[i]; if (info->fourcc == fourcc) return info; } return NULL; } /* ----------------------------------------------------------------------------- * Pipeline Management */ void vsp1_pipeline_reset(struct vsp1_pipeline *pipe) { unsigned int i; if (pipe->bru) { struct vsp1_bru *bru = to_bru(&pipe->bru->subdev); for (i = 0; i < ARRAY_SIZE(bru->inputs); ++i) bru->inputs[i].rpf = NULL; } for (i = 0; i < ARRAY_SIZE(pipe->inputs); ++i) { if (pipe->inputs[i]) { pipe->inputs[i]->pipe = NULL; pipe->inputs[i] = NULL; } } if (pipe->output) { pipe->output->pipe = NULL; pipe->output = NULL; } INIT_LIST_HEAD(&pipe->entities); pipe->state = VSP1_PIPELINE_STOPPED; pipe->buffers_ready = 0; pipe->num_inputs = 0; pipe->bru = NULL; pipe->lif = NULL; pipe->uds = NULL; } void vsp1_pipeline_init(struct vsp1_pipeline *pipe) { mutex_init(&pipe->lock); spin_lock_init(&pipe->irqlock); init_waitqueue_head(&pipe->wq); kref_init(&pipe->kref); INIT_LIST_HEAD(&pipe->entities); pipe->state = VSP1_PIPELINE_STOPPED; } /* Must be called with the pipe irqlock held. */ void vsp1_pipeline_run(struct vsp1_pipeline *pipe) { struct vsp1_device *vsp1 = pipe->output->entity.vsp1; if (pipe->state == VSP1_PIPELINE_STOPPED) { 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; if (pipe->lif) { /* When using display lists in continuous frame mode the only * way to stop the pipeline is to reset the hardware. */ ret = vsp1_reset_wpf(pipe->output->entity.vsp1, pipe->output->entity.index); if (ret == 0) { spin_lock_irqsave(&pipe->irqlock, flags); pipe->state = VSP1_PIPELINE_STOPPED; spin_unlock_irqrestore(&pipe->irqlock, flags); } } else { /* Otherwise just request a stop and wait. */ 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(&pipe->output->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) { if (pipe == NULL) return; vsp1_dlm_irq_frame_end(pipe->output->dlm); if (pipe->frame_end) pipe->frame_end(pipe); pipe->sequence++; } /* * 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_dl_list *dl, unsigned int alpha) { if (!pipe->uds) return; /* The BRU background color has a fixed alpha value set to 255, the * output alpha value is thus always equal to 255. */ if (pipe->uds_input->type == VSP1_ENTITY_BRU) alpha = 255; vsp1_uds_set_alpha(pipe->uds, dl, alpha); } 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->info->wpf_count; ++i) { struct vsp1_rwpf *wpf = vsp1->wpf[i]; struct vsp1_pipeline *pipe; if (wpf == NULL) continue; pipe = wpf->pipe; 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->info->wpf_count; ++i) { struct vsp1_rwpf *wpf = vsp1->wpf[i]; struct vsp1_pipeline *pipe; if (wpf == NULL) continue; pipe = wpf->pipe; 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 long flags; unsigned int i; /* Resume all running pipelines. */ for (i = 0; i < vsp1->info->wpf_count; ++i) { struct vsp1_rwpf *wpf = vsp1->wpf[i]; struct vsp1_pipeline *pipe; if (wpf == NULL) continue; pipe = wpf->pipe; if (pipe == NULL) continue; spin_lock_irqsave(&pipe->irqlock, flags); if (vsp1_pipeline_ready(pipe)) vsp1_pipeline_run(pipe); spin_unlock_irqrestore(&pipe->irqlock, flags); } }