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Commit 26e0ca22 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Mauro Carvalho Chehab
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[media] v4l: Renesas R-Car VSP1 driver 

The VSP1 is a video processing engine that includes a blender, scalers,
filters and statistics computation. Configurable data path routing logic
allows ordering the internal blocks in a flexible way.
Due to the configurable nature of the pipeline the driver implements the
media controller API and doesn't use the V4L2 mem-to-mem framework, even
though the device usually operates in memory to memory mode.
Only the read pixel formatters, up/down scalers, write pixel formatters
and LCDC interface are supported at this stage.
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: default avatarSakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent 84930548
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drivers/media/platform/Kconfig
View file @ 26e0ca22
......@@ -210,6 +210,16 @@ config VIDEO_SH_VEU
Support for the Video Engine Unit (VEU) on SuperH and
SH-Mobile SoCs.
config VIDEO_RENESAS_VSP1
tristate "Renesas VSP1 Video Processing Engine"
depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
select VIDEOBUF2_DMA_CONTIG
---help---
This is a V4L2 driver for the Renesas VSP1 video processing engine.
To compile this driver as a module, choose M here: the module
will be called vsp1.
endif # V4L_MEM2MEM_DRIVERS
menuconfig V4L_TEST_DRIVERS
......
drivers/media/platform/Makefile
View file @ 26e0ca22
......@@ -46,6 +46,8 @@ obj-$(CONFIG_VIDEO_SH_VOU) += sh_vou.o
obj-$(CONFIG_SOC_CAMERA) += soc_camera/
obj-$(CONFIG_VIDEO_RENESAS_VSP1) += vsp1/
obj-y += davinci/
obj-$(CONFIG_ARCH_OMAP) += omap/
......
drivers/media/platform/vsp1/Makefile 0 → 100644
View file @ 26e0ca22
vsp1-y := vsp1_drv.o vsp1_entity.o vsp1_video.o
vsp1-y += vsp1_rpf.o vsp1_rwpf.o vsp1_wpf.o
vsp1-y += vsp1_lif.o vsp1_uds.o
obj-$(CONFIG_VIDEO_RENESAS_VSP1) += vsp1.o
drivers/media/platform/vsp1/vsp1.h 0 → 100644
View file @ 26e0ca22
/*
* vsp1.h -- R-Car VSP1 Driver
*
* Copyright (C) 2013 Renesas 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_H__
#define __VSP1_H__
#include <linux/io.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/platform_data/vsp1.h>
#include <media/media-device.h>
#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>
#include "vsp1_regs.h"
struct clk;
struct device;
struct vsp1_platform_data;
struct vsp1_lif;
struct vsp1_rwpf;
struct vsp1_uds;
#define VPS1_MAX_RPF 5
#define VPS1_MAX_UDS 3
#define VPS1_MAX_WPF 4
struct vsp1_device {
struct device *dev;
struct vsp1_platform_data *pdata;
void __iomem *mmio;
struct clk *clock;
struct mutex lock;
int ref_count;
struct vsp1_lif *lif;
struct vsp1_rwpf *rpf[VPS1_MAX_RPF];
struct vsp1_uds *uds[VPS1_MAX_UDS];
struct vsp1_rwpf *wpf[VPS1_MAX_WPF];
struct list_head entities;
struct v4l2_device v4l2_dev;
struct media_device media_dev;
};
struct vsp1_device *vsp1_device_get(struct vsp1_device *vsp1);
void vsp1_device_put(struct vsp1_device *vsp1);
static inline u32 vsp1_read(struct vsp1_device *vsp1, u32 reg)
{
return ioread32(vsp1->mmio + reg);
}
static inline void vsp1_write(struct vsp1_device *vsp1, u32 reg, u32 data)
{
iowrite32(data, vsp1->mmio + reg);
}
#endif /* __VSP1_H__ */
drivers/media/platform/vsp1/vsp1_drv.c 0 → 100644
View file @ 26e0ca22
/*
* vsp1_drv.c -- R-Car VSP1 Driver
*
* Copyright (C) 2013 Renesas 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/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/videodev2.h>
#include "vsp1.h"
#include "vsp1_lif.h"
#include "vsp1_rwpf.h"
#include "vsp1_uds.h"
/* -----------------------------------------------------------------------------
* Interrupt Handling
*/
static irqreturn_t vsp1_irq_handler(int irq, void *data)
{
u32 mask = VI6_WFP_IRQ_STA_DFE | VI6_WFP_IRQ_STA_FRE;
struct vsp1_device *vsp1 = data;
irqreturn_t ret = IRQ_NONE;
unsigned int i;
for (i = 0; i < VPS1_MAX_WPF; ++i) {
struct vsp1_rwpf *wpf = vsp1->wpf[i];
struct vsp1_pipeline *pipe;
u32 status;
if (wpf == NULL)
continue;
pipe = to_vsp1_pipeline(&wpf->entity.subdev.entity);
status = vsp1_read(vsp1, VI6_WPF_IRQ_STA(i));
vsp1_write(vsp1, VI6_WPF_IRQ_STA(i), ~status & mask);
if (status & VI6_WFP_IRQ_STA_FRE) {
vsp1_pipeline_frame_end(pipe);
ret = IRQ_HANDLED;
}
}
return ret;
}
/* -----------------------------------------------------------------------------
* Entities
*/
/*
* vsp1_create_links - Create links from all sources to the given sink
*
* This function creates media links from all valid sources to the given sink
* pad. Links that would be invalid according to the VSP1 hardware capabilities
* are skipped. Those include all links
*
* - from a UDS to a UDS (UDS entities can't be chained)
* - from an entity to itself (no loops are allowed)
*/
static int vsp1_create_links(struct vsp1_device *vsp1, struct vsp1_entity *sink)
{
struct media_entity *entity = &sink->subdev.entity;
struct vsp1_entity *source;
unsigned int pad;
int ret;
list_for_each_entry(source, &vsp1->entities, list_dev) {
u32 flags;
if (source->type == sink->type)
continue;
if (source->type == VSP1_ENTITY_LIF ||
source->type == VSP1_ENTITY_WPF)
continue;
flags = source->type == VSP1_ENTITY_RPF &&
sink->type == VSP1_ENTITY_WPF &&
source->index == sink->index
? MEDIA_LNK_FL_ENABLED : 0;
for (pad = 0; pad < entity->num_pads; ++pad) {
if (!(entity->pads[pad].flags & MEDIA_PAD_FL_SINK))
continue;
ret = media_entity_create_link(&source->subdev.entity,
source->source_pad,
entity, pad, flags);
if (ret < 0)
return ret;
}
}
return 0;
}
static void vsp1_destroy_entities(struct vsp1_device *vsp1)
{
struct vsp1_entity *entity;
struct vsp1_entity *next;
list_for_each_entry_safe(entity, next, &vsp1->entities, list_dev) {
list_del(&entity->list_dev);
vsp1_entity_destroy(entity);
}
v4l2_device_unregister(&vsp1->v4l2_dev);
media_device_unregister(&vsp1->media_dev);
}
static int vsp1_create_entities(struct vsp1_device *vsp1)
{
struct media_device *mdev = &vsp1->media_dev;
struct v4l2_device *vdev = &vsp1->v4l2_dev;
struct vsp1_entity *entity;
unsigned int i;
int ret;
mdev->dev = vsp1->dev;
strlcpy(mdev->model, "VSP1", sizeof(mdev->model));
ret = media_device_register(mdev);
if (ret < 0) {
dev_err(vsp1->dev, "media device registration failed (%d)\n",
ret);
return ret;
}
vdev->mdev = mdev;
ret = v4l2_device_register(vsp1->dev, vdev);
if (ret < 0) {
dev_err(vsp1->dev, "V4L2 device registration failed (%d)\n",
ret);
goto done;
}
/* Instantiate all the entities. */
if (vsp1->pdata->features & VSP1_HAS_LIF) {
vsp1->lif = vsp1_lif_create(vsp1);
if (IS_ERR(vsp1->lif)) {
ret = PTR_ERR(vsp1->lif);
goto done;
}
list_add_tail(&vsp1->lif->entity.list_dev, &vsp1->entities);
}
for (i = 0; i < vsp1->pdata->rpf_count; ++i) {
struct vsp1_rwpf *rpf;
rpf = vsp1_rpf_create(vsp1, i);
if (IS_ERR(rpf)) {
ret = PTR_ERR(rpf);
goto done;
}
vsp1->rpf[i] = rpf;
list_add_tail(&rpf->entity.list_dev, &vsp1->entities);
}
for (i = 0; i < vsp1->pdata->uds_count; ++i) {
struct vsp1_uds *uds;
uds = vsp1_uds_create(vsp1, i);
if (IS_ERR(uds)) {
ret = PTR_ERR(uds);
goto done;
}
vsp1->uds[i] = uds;
list_add_tail(&uds->entity.list_dev, &vsp1->entities);
}
for (i = 0; i < vsp1->pdata->wpf_count; ++i) {
struct vsp1_rwpf *wpf;
wpf = vsp1_wpf_create(vsp1, i);
if (IS_ERR(wpf)) {
ret = PTR_ERR(wpf);
goto done;
}
vsp1->wpf[i] = wpf;
list_add_tail(&wpf->entity.list_dev, &vsp1->entities);
}
/* Create links. */
list_for_each_entry(entity, &vsp1->entities, list_dev) {
if (entity->type == VSP1_ENTITY_LIF ||
entity->type == VSP1_ENTITY_RPF)
continue;
ret = vsp1_create_links(vsp1, entity);
if (ret < 0)
goto done;
}
if (vsp1->pdata->features & VSP1_HAS_LIF) {
ret = media_entity_create_link(
&vsp1->wpf[0]->entity.subdev.entity, RWPF_PAD_SOURCE,
&vsp1->lif->entity.subdev.entity, LIF_PAD_SINK, 0);
if (ret < 0)
return ret;
}
/* Register all subdevs. */
list_for_each_entry(entity, &vsp1->entities, list_dev) {
ret = v4l2_device_register_subdev(&vsp1->v4l2_dev,
&entity->subdev);
if (ret < 0)
goto done;
}
ret = v4l2_device_register_subdev_nodes(&vsp1->v4l2_dev);
done:
if (ret < 0)
vsp1_destroy_entities(vsp1);
return ret;
}
static int vsp1_device_init(struct vsp1_device *vsp1)
{
unsigned int i;
u32 status;
/* Reset any channel that might be running. */
status = vsp1_read(vsp1, VI6_STATUS);
for (i = 0; i < VPS1_MAX_WPF; ++i) {
unsigned int timeout;
if (!(status & VI6_STATUS_SYS_ACT(i)))
continue;
vsp1_write(vsp1, VI6_SRESET, VI6_SRESET_SRTS(i));
for (timeout = 10; timeout > 0; --timeout) {
status = vsp1_read(vsp1, VI6_STATUS);
if (!(status & VI6_STATUS_SYS_ACT(i)))
break;
usleep_range(1000, 2000);
}
if (!timeout) {
dev_err(vsp1->dev, "failed to reset wpf.%u\n", i);
return -ETIMEDOUT;
}
}
vsp1_write(vsp1, VI6_CLK_DCSWT, (8 << VI6_CLK_DCSWT_CSTPW_SHIFT) |
(8 << VI6_CLK_DCSWT_CSTRW_SHIFT));
for (i = 0; i < VPS1_MAX_RPF; ++i)
vsp1_write(vsp1, VI6_DPR_RPF_ROUTE(i), VI6_DPR_NODE_UNUSED);
for (i = 0; i < VPS1_MAX_UDS; ++i)
vsp1_write(vsp1, VI6_DPR_UDS_ROUTE(i), VI6_DPR_NODE_UNUSED);
vsp1_write(vsp1, VI6_DPR_SRU_ROUTE, VI6_DPR_NODE_UNUSED);
vsp1_write(vsp1, VI6_DPR_LUT_ROUTE, VI6_DPR_NODE_UNUSED);
vsp1_write(vsp1, VI6_DPR_CLU_ROUTE, VI6_DPR_NODE_UNUSED);
vsp1_write(vsp1, VI6_DPR_HST_ROUTE, VI6_DPR_NODE_UNUSED);
vsp1_write(vsp1, VI6_DPR_HSI_ROUTE, VI6_DPR_NODE_UNUSED);
vsp1_write(vsp1, VI6_DPR_BRU_ROUTE, VI6_DPR_NODE_UNUSED);
vsp1_write(vsp1, VI6_DPR_HGO_SMPPT, (7 << VI6_DPR_SMPPT_TGW_SHIFT) |
(VI6_DPR_NODE_UNUSED << VI6_DPR_SMPPT_PT_SHIFT));
vsp1_write(vsp1, VI6_DPR_HGT_SMPPT, (7 << VI6_DPR_SMPPT_TGW_SHIFT) |
(VI6_DPR_NODE_UNUSED << VI6_DPR_SMPPT_PT_SHIFT));
return 0;
}
/*
* vsp1_device_get - Acquire the VSP1 device
*
* Increment the VSP1 reference count and initialize the device if the first
* reference is taken.
*
* Return a pointer to the VSP1 device or NULL if an error occured.
*/
struct vsp1_device *vsp1_device_get(struct vsp1_device *vsp1)
{
struct vsp1_device *__vsp1 = vsp1;
int ret;
mutex_lock(&vsp1->lock);
if (vsp1->ref_count > 0)
goto done;
ret = clk_prepare_enable(vsp1->clock);
if (ret < 0) {
__vsp1 = NULL;
goto done;
}
ret = vsp1_device_init(vsp1);
if (ret < 0) {
clk_disable_unprepare(vsp1->clock);
__vsp1 = NULL;
goto done;
}
done:
if (__vsp1)
vsp1->ref_count++;
mutex_unlock(&vsp1->lock);
return __vsp1;
}
/*
* vsp1_device_put - Release the VSP1 device
*
* Decrement the VSP1 reference count and cleanup the device if the last
* reference is released.
*/
void vsp1_device_put(struct vsp1_device *vsp1)
{
mutex_lock(&vsp1->lock);
if (--vsp1->ref_count == 0)
clk_disable_unprepare(vsp1->clock);
mutex_unlock(&vsp1->lock);
}
/* -----------------------------------------------------------------------------
* Power Management
*/
#ifdef CONFIG_PM_SLEEP
static int vsp1_pm_suspend(struct device *dev)
{
struct vsp1_device *vsp1 = dev_get_drvdata(dev);
WARN_ON(mutex_is_locked(&vsp1->lock));
if (vsp1->ref_count == 0)
return 0;
clk_disable_unprepare(vsp1->clock);
return 0;
}
static int vsp1_pm_resume(struct device *dev)
{
struct vsp1_device *vsp1 = dev_get_drvdata(dev);
WARN_ON(mutex_is_locked(&vsp1->lock));
if (vsp1->ref_count)
return 0;
return clk_prepare_enable(vsp1->clock);
}
#endif
static const struct dev_pm_ops vsp1_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(vsp1_pm_suspend, vsp1_pm_resume)
};
/* -----------------------------------------------------------------------------
* Platform Driver
*/
static struct vsp1_platform_data *
vsp1_get_platform_data(struct platform_device *pdev)
{
struct vsp1_platform_data *pdata = pdev->dev.platform_data;
if (pdata == NULL) {
dev_err(&pdev->dev, "missing platform data\n");
return NULL;
}
if (pdata->rpf_count <= 0 || pdata->rpf_count > VPS1_MAX_RPF) {
dev_err(&pdev->dev, "invalid number of RPF (%u)\n",
pdata->rpf_count);
return NULL;
}
if (pdata->uds_count <= 0 || pdata->uds_count > VPS1_MAX_UDS) {
dev_err(&pdev->dev, "invalid number of UDS (%u)\n",
pdata->uds_count);
return NULL;
}
if (pdata->wpf_count <= 0 || pdata->wpf_count > VPS1_MAX_WPF) {
dev_err(&pdev->dev, "invalid number of WPF (%u)\n",
pdata->wpf_count);
return NULL;
}
return pdata;
}
static int vsp1_probe(struct platform_device *pdev)
{
struct vsp1_device *vsp1;
struct resource *irq;
struct resource *io;
int ret;
vsp1 = devm_kzalloc(&pdev->dev, sizeof(*vsp1), GFP_KERNEL);
if (vsp1 == NULL)
return -ENOMEM;
vsp1->dev = &pdev->dev;
mutex_init(&vsp1->lock);
INIT_LIST_HEAD(&vsp1->entities);
vsp1->pdata = vsp1_get_platform_data(pdev);
if (vsp1->pdata == NULL)
return -ENODEV;
/* I/O, IRQ and clock resources */
io = platform_get_resource(pdev, IORESOURCE_MEM, 0);
vsp1->mmio = devm_ioremap_resource(&pdev->dev, io);
if (IS_ERR((void *)vsp1->mmio))
return PTR_ERR((void *)vsp1->mmio);
vsp1->clock = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(vsp1->clock)) {
dev_err(&pdev->dev, "failed to get clock\n");
return PTR_ERR(vsp1->clock);
}
irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!irq) {
dev_err(&pdev->dev, "missing IRQ\n");
return -EINVAL;
}
ret = devm_request_irq(&pdev->dev, irq->start, vsp1_irq_handler,
IRQF_SHARED, dev_name(&pdev->dev), vsp1);
if (ret < 0) {
dev_err(&pdev->dev, "failed to request IRQ\n");
return ret;
}
/* Instanciate entities */
ret = vsp1_create_entities(vsp1);
if (ret < 0) {
dev_err(&pdev->dev, "failed to create entities\n");
return ret;
}
platform_set_drvdata(pdev, vsp1);
return 0;
}
static int vsp1_remove(struct platform_device *pdev)
{
struct vsp1_device *vsp1 = platform_get_drvdata(pdev);
vsp1_destroy_entities(vsp1);
return 0;
}
static struct platform_driver vsp1_platform_driver = {
.probe = vsp1_probe,
.remove = vsp1_remove,
.driver = {
.owner = THIS_MODULE,
.name = "vsp1",
.pm = &vsp1_pm_ops,
},
};
module_platform_driver(vsp1_platform_driver);
MODULE_ALIAS("vsp1");
MODULE_AUTHOR("Laurent Pinchart <laurent.pinchart@ideasonboard.com>");
MODULE_DESCRIPTION("Renesas VSP1 Driver");
MODULE_LICENSE("GPL");
drivers/media/platform/vsp1/vsp1_entity.c 0 → 100644
View file @ 26e0ca22
/*
* vsp1_entity.c -- R-Car VSP1 Base Entity
*
* Copyright (C) 2013 Renesas 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/device.h>
#include <linux/gfp.h>
#include <media/media-entity.h>
#include <media/v4l2-subdev.h>
#include "vsp1.h"
#include "vsp1_entity.h"
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Operations
*/
struct v4l2_mbus_framefmt *
vsp1_entity_get_pad_format(struct vsp1_entity *entity,
struct v4l2_subdev_fh *fh,
unsigned int pad, u32 which)
{
switch (which) {
case V4L2_SUBDEV_FORMAT_TRY:
return v4l2_subdev_get_try_format(fh, pad);
case V4L2_SUBDEV_FORMAT_ACTIVE:
return &entity->formats[pad];
default:
return NULL;
}
}
/*
* vsp1_entity_init_formats - Initialize formats on all pads
* @subdev: V4L2 subdevice
* @fh: V4L2 subdev file handle
*
* Initialize all pad formats with default values. If fh is not NULL, try
* formats are initialized on the file handle. Otherwise active formats are
* initialized on the device.
*/
void vsp1_entity_init_formats(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh)
{
struct v4l2_subdev_format format;
unsigned int pad;
for (pad = 0; pad < subdev->entity.num_pads - 1; ++pad) {
memset(&format, 0, sizeof(format));
format.pad = pad;
format.which = fh ? V4L2_SUBDEV_FORMAT_TRY
: V4L2_SUBDEV_FORMAT_ACTIVE;
v4l2_subdev_call(subdev, pad, set_fmt, fh, &format);
}
}
static int vsp1_entity_open(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh)
{
vsp1_entity_init_formats(subdev, fh);
return 0;
}
const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops = {
.open = vsp1_entity_open,
};
/* -----------------------------------------------------------------------------
* Media Operations
*/
static int vsp1_entity_link_setup(struct media_entity *entity,
const struct media_pad *local,
const struct media_pad *remote, u32 flags)
{
struct vsp1_entity *source;
if (!(local->flags & MEDIA_PAD_FL_SOURCE))
return 0;
source = container_of(local->entity, struct vsp1_entity, subdev.entity);
if (!source->route)
return 0;
if (flags & MEDIA_LNK_FL_ENABLED) {
if (source->sink)
return -EBUSY;
source->sink = remote->entity;
} else {
source->sink = NULL;
}
return 0;
}
const struct media_entity_operations vsp1_media_ops = {
.link_setup = vsp1_entity_link_setup,
.link_validate = v4l2_subdev_link_validate,
};
/* -----------------------------------------------------------------------------
* Initialization
*/
int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
unsigned int num_pads)
{
static const struct {
unsigned int id;
unsigned int reg;
} routes[] = {
{ VI6_DPR_NODE_LIF, 0 },
{ VI6_DPR_NODE_RPF(0), VI6_DPR_RPF_ROUTE(0) },
{ VI6_DPR_NODE_RPF(1), VI6_DPR_RPF_ROUTE(1) },
{ VI6_DPR_NODE_RPF(2), VI6_DPR_RPF_ROUTE(2) },
{ VI6_DPR_NODE_RPF(3), VI6_DPR_RPF_ROUTE(3) },
{ VI6_DPR_NODE_RPF(4), VI6_DPR_RPF_ROUTE(4) },
{ VI6_DPR_NODE_UDS(0), VI6_DPR_UDS_ROUTE(0) },
{ VI6_DPR_NODE_UDS(1), VI6_DPR_UDS_ROUTE(1) },
{ VI6_DPR_NODE_UDS(2), VI6_DPR_UDS_ROUTE(2) },
{ VI6_DPR_NODE_WPF(0), 0 },
{ VI6_DPR_NODE_WPF(1), 0 },
{ VI6_DPR_NODE_WPF(2), 0 },
{ VI6_DPR_NODE_WPF(3), 0 },
};
unsigned int i;
for (i = 0; i < ARRAY_SIZE(routes); ++i) {
if (routes[i].id == entity->id) {
entity->route = routes[i].reg;
break;
}
}
if (i == ARRAY_SIZE(routes))
return -EINVAL;
entity->vsp1 = vsp1;
entity->source_pad = num_pads - 1;
/* Allocate formats and pads. */
entity->formats = devm_kzalloc(vsp1->dev,
num_pads * sizeof(*entity->formats),
GFP_KERNEL);
if (entity->formats == NULL)
return -ENOMEM;
entity->pads = devm_kzalloc(vsp1->dev, num_pads * sizeof(*entity->pads),
GFP_KERNEL);
if (entity->pads == NULL)
return -ENOMEM;
/* Initialize pads. */
for (i = 0; i < num_pads - 1; ++i)
entity->pads[i].flags = MEDIA_PAD_FL_SINK;
entity->pads[num_pads - 1].flags = MEDIA_PAD_FL_SOURCE;
/* Initialize the media entity. */
return media_entity_init(&entity->subdev.entity, num_pads,
entity->pads, 0);
}
void vsp1_entity_destroy(struct vsp1_entity *entity)
{
media_entity_cleanup(&entity->subdev.entity);
}
drivers/media/platform/vsp1/vsp1_entity.h 0 → 100644
View file @ 26e0ca22
/*
* vsp1_entity.h -- R-Car VSP1 Base Entity
*
* Copyright (C) 2013 Renesas 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_ENTITY_H__
#define __VSP1_ENTITY_H__
#include <linux/list.h>
#include <media/v4l2-subdev.h>
struct vsp1_device;
enum vsp1_entity_type {
VSP1_ENTITY_LIF,
VSP1_ENTITY_RPF,
VSP1_ENTITY_UDS,
VSP1_ENTITY_WPF,
};
struct vsp1_entity {
struct vsp1_device *vsp1;
enum vsp1_entity_type type;
unsigned int index;
unsigned int id;
unsigned int route;
struct list_head list_dev;
struct list_head list_pipe;
struct media_pad *pads;
unsigned int source_pad;
struct media_entity *sink;
struct v4l2_subdev subdev;
struct v4l2_mbus_framefmt *formats;
};
static inline struct vsp1_entity *to_vsp1_entity(struct v4l2_subdev *subdev)
{
return container_of(subdev, struct vsp1_entity, subdev);
}
int vsp1_entity_init(struct vsp1_device *vsp1, struct vsp1_entity *entity,
unsigned int num_pads);
void vsp1_entity_destroy(struct vsp1_entity *entity);
extern const struct v4l2_subdev_internal_ops vsp1_subdev_internal_ops;
extern const struct media_entity_operations vsp1_media_ops;
struct v4l2_mbus_framefmt *
vsp1_entity_get_pad_format(struct vsp1_entity *entity,
struct v4l2_subdev_fh *fh,
unsigned int pad, u32 which);
void vsp1_entity_init_formats(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh);
#endif /* __VSP1_ENTITY_H__ */
drivers/media/platform/vsp1/vsp1_lif.c 0 → 100644
View file @ 26e0ca22
/*
* vsp1_lif.c -- R-Car VSP1 LCD Controller Interface
*
* Copyright (C) 2013 Renesas 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/device.h>
#include <linux/gfp.h>
#include <media/v4l2-subdev.h>
#include "vsp1.h"
#include "vsp1_lif.h"
#define LIF_MIN_SIZE 2U
#define LIF_MAX_SIZE 2048U
/* -----------------------------------------------------------------------------
* Device Access
*/
static inline u32 vsp1_lif_read(struct vsp1_lif *lif, u32 reg)
{
return vsp1_read(lif->entity.vsp1, reg);
}
static inline void vsp1_lif_write(struct vsp1_lif *lif, u32 reg, u32 data)
{
vsp1_write(lif->entity.vsp1, reg, data);
}
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Core Operations
*/
static int lif_s_stream(struct v4l2_subdev *subdev, int enable)
{
const struct v4l2_mbus_framefmt *format;
struct vsp1_lif *lif = to_lif(subdev);
unsigned int hbth = 1300;
unsigned int obth = 400;
unsigned int lbth = 200;
if (!enable) {
vsp1_lif_write(lif, VI6_LIF_CTRL, 0);
return 0;
}
format = &lif->entity.formats[LIF_PAD_SOURCE];
obth = min(obth, (format->width + 1) / 2 * format->height - 4);
vsp1_lif_write(lif, VI6_LIF_CSBTH,
(hbth << VI6_LIF_CSBTH_HBTH_SHIFT) |
(lbth << VI6_LIF_CSBTH_LBTH_SHIFT));
vsp1_lif_write(lif, VI6_LIF_CTRL,
(obth << VI6_LIF_CTRL_OBTH_SHIFT) |
(format->code == 0 ? VI6_LIF_CTRL_CFMT : 0) |
VI6_LIF_CTRL_REQSEL | VI6_LIF_CTRL_LIF_EN);
return 0;
}
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Pad Operations
*/
static int lif_enum_mbus_code(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_mbus_code_enum *code)
{
static const unsigned int codes[] = {
V4L2_MBUS_FMT_ARGB8888_1X32,
V4L2_MBUS_FMT_AYUV8_1X32,
};
if (code->pad == LIF_PAD_SINK) {
if (code->index >= ARRAY_SIZE(codes))
return -EINVAL;
code->code = codes[code->index];
} else {
struct v4l2_mbus_framefmt *format;
/* The LIF can't perform format conversion, the sink format is
* always identical to the source format.
*/
if (code->index)
return -EINVAL;
format = v4l2_subdev_get_try_format(fh, LIF_PAD_SINK);
code->code = format->code;
}
return 0;
}
static int lif_enum_frame_size(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_frame_size_enum *fse)
{
struct v4l2_mbus_framefmt *format;
format = v4l2_subdev_get_try_format(fh, LIF_PAD_SINK);
if (fse->index || fse->code != format->code)
return -EINVAL;
if (fse->pad == LIF_PAD_SINK) {
fse->min_width = LIF_MIN_SIZE;
fse->max_width = LIF_MAX_SIZE;
fse->min_height = LIF_MIN_SIZE;
fse->max_height = LIF_MAX_SIZE;
} else {
fse->min_width = format->width;
fse->max_width = format->width;
fse->min_height = format->height;
fse->max_height = format->height;
}
return 0;
}
static int lif_get_format(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct vsp1_lif *lif = to_lif(subdev);
fmt->format = *vsp1_entity_get_pad_format(&lif->entity, fh, fmt->pad,
fmt->which);
return 0;
}
static int lif_set_format(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct vsp1_lif *lif = to_lif(subdev);
struct v4l2_mbus_framefmt *format;
/* Default to YUV if the requested format is not supported. */
if (fmt->format.code != V4L2_MBUS_FMT_ARGB8888_1X32 &&
fmt->format.code != V4L2_MBUS_FMT_AYUV8_1X32)
fmt->format.code = V4L2_MBUS_FMT_AYUV8_1X32;
format = vsp1_entity_get_pad_format(&lif->entity, fh, fmt->pad,
fmt->which);
if (fmt->pad == LIF_PAD_SOURCE) {
/* The LIF source format is always identical to its sink
* format.
*/
fmt->format = *format;
return 0;
}
format->code = fmt->format.code;
format->width = clamp_t(unsigned int, fmt->format.width,
LIF_MIN_SIZE, LIF_MAX_SIZE);
format->height = clamp_t(unsigned int, fmt->format.height,
LIF_MIN_SIZE, LIF_MAX_SIZE);
format->field = V4L2_FIELD_NONE;
format->colorspace = V4L2_COLORSPACE_SRGB;
fmt->format = *format;
/* Propagate the format to the source pad. */
format = vsp1_entity_get_pad_format(&lif->entity, fh, LIF_PAD_SOURCE,
fmt->which);
*format = fmt->format;
return 0;
}
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Operations
*/
static struct v4l2_subdev_video_ops lif_video_ops = {
.s_stream = lif_s_stream,
};
static struct v4l2_subdev_pad_ops lif_pad_ops = {
.enum_mbus_code = lif_enum_mbus_code,
.enum_frame_size = lif_enum_frame_size,
.get_fmt = lif_get_format,
.set_fmt = lif_set_format,
};
static struct v4l2_subdev_ops lif_ops = {
.video = &lif_video_ops,
.pad = &lif_pad_ops,
};
/* -----------------------------------------------------------------------------
* Initialization and Cleanup
*/
struct vsp1_lif *vsp1_lif_create(struct vsp1_device *vsp1)
{
struct v4l2_subdev *subdev;
struct vsp1_lif *lif;
int ret;
lif = devm_kzalloc(vsp1->dev, sizeof(*lif), GFP_KERNEL);
if (lif == NULL)
return ERR_PTR(-ENOMEM);
lif->entity.type = VSP1_ENTITY_LIF;
lif->entity.id = VI6_DPR_NODE_LIF;
ret = vsp1_entity_init(vsp1, &lif->entity, 2);
if (ret < 0)
return ERR_PTR(ret);
/* Initialize the V4L2 subdev. */
subdev = &lif->entity.subdev;
v4l2_subdev_init(subdev, &lif_ops);
subdev->entity.ops = &vsp1_media_ops;
subdev->internal_ops = &vsp1_subdev_internal_ops;
snprintf(subdev->name, sizeof(subdev->name), "%s lif",
dev_name(vsp1->dev));
v4l2_set_subdevdata(subdev, lif);
subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
vsp1_entity_init_formats(subdev, NULL);
return lif;
}
drivers/media/platform/vsp1/vsp1_lif.h 0 → 100644
View file @ 26e0ca22
/*
* vsp1_lif.h -- R-Car VSP1 LCD Controller Interface
*
* Copyright (C) 2013 Renesas 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_LIF_H__
#define __VSP1_LIF_H__
#include <media/media-entity.h>
#include <media/v4l2-subdev.h>
#include "vsp1_entity.h"
struct vsp1_device;
#define LIF_PAD_SINK 0
#define LIF_PAD_SOURCE 1
struct vsp1_lif {
struct vsp1_entity entity;
};
static inline struct vsp1_lif *to_lif(struct v4l2_subdev *subdev)
{
return container_of(subdev, struct vsp1_lif, entity.subdev);
}
struct vsp1_lif *vsp1_lif_create(struct vsp1_device *vsp1);
#endif /* __VSP1_LIF_H__ */
drivers/media/platform/vsp1/vsp1_regs.h 0 → 100644
View file @ 26e0ca22
/*
* vsp1_regs.h -- R-Car VSP1 Registers Definitions
*
* Copyright (C) 2013 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 version 2
* as published by the Free Software Foundation.
*/
#ifndef __VSP1_REGS_H__
#define __VSP1_REGS_H__
/* -----------------------------------------------------------------------------
* General Control Registers
*/
#define VI6_CMD(n) (0x0000 + (n) * 4)
#define VI6_CMD_STRCMD (1 << 0)
#define VI6_CLK_DCSWT 0x0018
#define VI6_CLK_DCSWT_CSTPW_MASK (0xff << 8)
#define VI6_CLK_DCSWT_CSTPW_SHIFT 8
#define VI6_CLK_DCSWT_CSTRW_MASK (0xff << 0)
#define VI6_CLK_DCSWT_CSTRW_SHIFT 0
#define VI6_SRESET 0x0028
#define VI6_SRESET_SRTS(n) (1 << (n))
#define VI6_STATUS 0x0038
#define VI6_STATUS_SYS_ACT(n) (1 << ((n) + 8))
#define VI6_WPF_IRQ_ENB(n) (0x0048 + (n) * 12)
#define VI6_WFP_IRQ_ENB_DFEE (1 << 1)
#define VI6_WFP_IRQ_ENB_FREE (1 << 0)
#define VI6_WPF_IRQ_STA(n) (0x004c + (n) * 12)
#define VI6_WFP_IRQ_STA_DFE (1 << 1)
#define VI6_WFP_IRQ_STA_FRE (1 << 0)
#define VI6_DISP_IRQ_ENB 0x0078
#define VI6_DISP_IRQ_ENB_DSTE (1 << 8)
#define VI6_DISP_IRQ_ENB_MAEE (1 << 5)
#define VI6_DISP_IRQ_ENB_LNEE(n) (1 << ((n) + 4))
#define VI6_DISP_IRQ_STA 0x007c
#define VI6_DISP_IRQ_STA_DSE (1 << 8)
#define VI6_DISP_IRQ_STA_MAE (1 << 5)
#define VI6_DISP_IRQ_STA_LNE(n) (1 << ((n) + 4))
#define VI6_WPF_LINE_COUNT(n) (0x0084 + (n) * 4)
#define VI6_WPF_LINE_COUNT_MASK (0x1fffff << 0)
/* -----------------------------------------------------------------------------
* Display List Control Registers
*/
#define VI6_DL_CTRL 0x0100
#define VI6_DL_CTRL_AR_WAIT_MASK (0xffff << 16)
#define VI6_DL_CTRL_AR_WAIT_SHIFT 16
#define VI6_DL_CTRL_DC2 (1 << 12)
#define VI6_DL_CTRL_DC1 (1 << 8)
#define VI6_DL_CTRL_DC0 (1 << 4)
#define VI6_DL_CTRL_CFM0 (1 << 2)
#define VI6_DL_CTRL_NH0 (1 << 1)
#define VI6_DL_CTRL_DLE (1 << 0)
#define VI6_DL_HDR_ADDR(n) (0x0104 + (n) * 4)
#define VI6_DL_SWAP 0x0114
#define VI6_DL_SWAP_LWS (1 << 2)
#define VI6_DL_SWAP_WDS (1 << 1)
#define VI6_DL_SWAP_BTS (1 << 0)
#define VI6_DL_EXT_CTRL 0x011c
#define VI6_DL_EXT_CTRL_NWE (1 << 16)
#define VI6_DL_EXT_CTRL_POLINT_MASK (0x3f << 8)
#define VI6_DL_EXT_CTRL_POLINT_SHIFT 8
#define VI6_DL_EXT_CTRL_DLPRI (1 << 5)
#define VI6_DL_EXT_CTRL_EXPRI (1 << 4)
#define VI6_DL_EXT_CTRL_EXT (1 << 0)
#define VI6_DL_BODY_SIZE 0x0120
#define VI6_DL_BODY_SIZE_UPD (1 << 24)
#define VI6_DL_BODY_SIZE_BS_MASK (0x1ffff << 0)
#define VI6_DL_BODY_SIZE_BS_SHIFT 0
/* -----------------------------------------------------------------------------
* RPF Control Registers
*/
#define VI6_RPF_OFFSET 0x100
#define VI6_RPF_SRC_BSIZE 0x0300
#define VI6_RPF_SRC_BSIZE_BHSIZE_MASK (0x1fff << 16)
#define VI6_RPF_SRC_BSIZE_BHSIZE_SHIFT 16
#define VI6_RPF_SRC_BSIZE_BVSIZE_MASK (0x1fff << 0)
#define VI6_RPF_SRC_BSIZE_BVSIZE_SHIFT 0
#define VI6_RPF_SRC_ESIZE 0x0304
#define VI6_RPF_SRC_ESIZE_EHSIZE_MASK (0x1fff << 16)
#define VI6_RPF_SRC_ESIZE_EHSIZE_SHIFT 16
#define VI6_RPF_SRC_ESIZE_EVSIZE_MASK (0x1fff << 0)
#define VI6_RPF_SRC_ESIZE_EVSIZE_SHIFT 0
#define VI6_RPF_INFMT 0x0308
#define VI6_RPF_INFMT_VIR (1 << 28)
#define VI6_RPF_INFMT_CIPM (1 << 16)
#define VI6_RPF_INFMT_SPYCS (1 << 15)
#define VI6_RPF_INFMT_SPUVS (1 << 14)
#define VI6_RPF_INFMT_CEXT_ZERO (0 << 12)
#define VI6_RPF_INFMT_CEXT_EXT (1 << 12)
#define VI6_RPF_INFMT_CEXT_ONE (2 << 12)
#define VI6_RPF_INFMT_CEXT_MASK (3 << 12)
#define VI6_RPF_INFMT_RDTM_BT601 (0 << 9)
#define VI6_RPF_INFMT_RDTM_BT601_EXT (1 << 9)
#define VI6_RPF_INFMT_RDTM_BT709 (2 << 9)
#define VI6_RPF_INFMT_RDTM_BT709_EXT (3 << 9)
#define VI6_RPF_INFMT_RDTM_MASK (7 << 9)
#define VI6_RPF_INFMT_CSC (1 << 8)
#define VI6_RPF_INFMT_RDFMT_MASK (0x7f << 0)
#define VI6_RPF_INFMT_RDFMT_SHIFT 0
#define VI6_RPF_DSWAP 0x030c
#define VI6_RPF_DSWAP_A_LLS (1 << 11)
#define VI6_RPF_DSWAP_A_LWS (1 << 10)
#define VI6_RPF_DSWAP_A_WDS (1 << 9)
#define VI6_RPF_DSWAP_A_BTS (1 << 8)
#define VI6_RPF_DSWAP_P_LLS (1 << 3)
#define VI6_RPF_DSWAP_P_LWS (1 << 2)
#define VI6_RPF_DSWAP_P_WDS (1 << 1)
#define VI6_RPF_DSWAP_P_BTS (1 << 0)
#define VI6_RPF_LOC 0x0310
#define VI6_RPF_LOC_HCOORD_MASK (0x1fff << 16)
#define VI6_RPF_LOC_HCOORD_SHIFT 16
#define VI6_RPF_LOC_VCOORD_MASK (0x1fff << 0)
#define VI6_RPF_LOC_VCOORD_SHIFT 0
#define VI6_RPF_ALPH_SEL 0x0314
#define VI6_RPF_ALPH_SEL_ASEL_PACKED (0 << 28)
#define VI6_RPF_ALPH_SEL_ASEL_8B_PLANE (1 << 28)
#define VI6_RPF_ALPH_SEL_ASEL_SELECT (2 << 28)
#define VI6_RPF_ALPH_SEL_ASEL_1B_PLANE (3 << 28)
#define VI6_RPF_ALPH_SEL_ASEL_FIXED (4 << 28)
#define VI6_RPF_ALPH_SEL_ASEL_MASK (7 << 28)
#define VI6_RPF_ALPH_SEL_ASEL_SHIFT 28
#define VI6_RPF_ALPH_SEL_IROP_MASK (0xf << 24)
#define VI6_RPF_ALPH_SEL_IROP_SHIFT 24
#define VI6_RPF_ALPH_SEL_BSEL (1 << 23)
#define VI6_RPF_ALPH_SEL_AEXT_ZERO (0 << 18)
#define VI6_RPF_ALPH_SEL_AEXT_EXT (1 << 18)
#define VI6_RPF_ALPH_SEL_AEXT_ONE (2 << 18)
#define VI6_RPF_ALPH_SEL_AEXT_MASK (3 << 18)
#define VI6_RPF_ALPH_SEL_ALPHA0_MASK (0xff << 8)
#define VI6_RPF_ALPH_SEL_ALPHA0_SHIFT 8
#define VI6_RPF_ALPH_SEL_ALPHA1_MASK (0xff << 0)
#define VI6_RPF_ALPH_SEL_ALPHA1_SHIFT 0
#define VI6_RPF_VRTCOL_SET 0x0318
#define VI6_RPF_VRTCOL_SET_LAYA_MASK (0xff << 24)
#define VI6_RPF_VRTCOL_SET_LAYA_SHIFT 24
#define VI6_RPF_VRTCOL_SET_LAYR_MASK (0xff << 16)
#define VI6_RPF_VRTCOL_SET_LAYR_SHIFT 16
#define VI6_RPF_VRTCOL_SET_LAYG_MASK (0xff << 8)
#define VI6_RPF_VRTCOL_SET_LAYG_SHIFT 8
#define VI6_RPF_VRTCOL_SET_LAYB_MASK (0xff << 0)
#define VI6_RPF_VRTCOL_SET_LAYB_SHIFT 0
#define VI6_RPF_MSK_CTRL 0x031c
#define VI6_RPF_MSK_CTRL_MSK_EN (1 << 24)
#define VI6_RPF_MSK_CTRL_MGR_MASK (0xff << 16)
#define VI6_RPF_MSK_CTRL_MGR_SHIFT 16
#define VI6_RPF_MSK_CTRL_MGG_MASK (0xff << 8)
#define VI6_RPF_MSK_CTRL_MGG_SHIFT 8
#define VI6_RPF_MSK_CTRL_MGB_MASK (0xff << 0)
#define VI6_RPF_MSK_CTRL_MGB_SHIFT 0
#define VI6_RPF_MSK_SET0 0x0320
#define VI6_RPF_MSK_SET1 0x0324
#define VI6_RPF_MSK_SET_MSA_MASK (0xff << 24)
#define VI6_RPF_MSK_SET_MSA_SHIFT 24
#define VI6_RPF_MSK_SET_MSR_MASK (0xff << 16)
#define VI6_RPF_MSK_SET_MSR_SHIFT 16
#define VI6_RPF_MSK_SET_MSG_MASK (0xff << 8)
#define VI6_RPF_MSK_SET_MSG_SHIFT 8
#define VI6_RPF_MSK_SET_MSB_MASK (0xff << 0)
#define VI6_RPF_MSK_SET_MSB_SHIFT 0
#define VI6_RPF_CKEY_CTRL 0x0328
#define VI6_RPF_CKEY_CTRL_CV (1 << 4)
#define VI6_RPF_CKEY_CTRL_SAPE1 (1 << 1)
#define VI6_RPF_CKEY_CTRL_SAPE0 (1 << 0)
#define VI6_RPF_CKEY_SET0 0x032c
#define VI6_RPF_CKEY_SET1 0x0330
#define VI6_RPF_CKEY_SET_AP_MASK (0xff << 24)
#define VI6_RPF_CKEY_SET_AP_SHIFT 24
#define VI6_RPF_CKEY_SET_R_MASK (0xff << 16)
#define VI6_RPF_CKEY_SET_R_SHIFT 16
#define VI6_RPF_CKEY_SET_GY_MASK (0xff << 8)
#define VI6_RPF_CKEY_SET_GY_SHIFT 8
#define VI6_RPF_CKEY_SET_B_MASK (0xff << 0)
#define VI6_RPF_CKEY_SET_B_SHIFT 0
#define VI6_RPF_SRCM_PSTRIDE 0x0334
#define VI6_RPF_SRCM_PSTRIDE_Y_SHIFT 16
#define VI6_RPF_SRCM_PSTRIDE_C_SHIFT 0
#define VI6_RPF_SRCM_ASTRIDE 0x0338
#define VI6_RPF_SRCM_PSTRIDE_A_SHIFT 0
#define VI6_RPF_SRCM_ADDR_Y 0x033c
#define VI6_RPF_SRCM_ADDR_C0 0x0340
#define VI6_RPF_SRCM_ADDR_C1 0x0344
#define VI6_RPF_SRCM_ADDR_AI 0x0348
/* -----------------------------------------------------------------------------
* WPF Control Registers
*/
#define VI6_WPF_OFFSET 0x100
#define VI6_WPF_SRCRPF 0x1000
#define VI6_WPF_SRCRPF_VIRACT_DIS (0 << 28)
#define VI6_WPF_SRCRPF_VIRACT_SUB (1 << 28)
#define VI6_WPF_SRCRPF_VIRACT_MST (2 << 28)
#define VI6_WPF_SRCRPF_VIRACT_MASK (3 << 28)
#define VI6_WPF_SRCRPF_RPF_ACT_DIS(n) (0 << ((n) * 2))
#define VI6_WPF_SRCRPF_RPF_ACT_SUB(n) (1 << ((n) * 2))
#define VI6_WPF_SRCRPF_RPF_ACT_MST(n) (2 << ((n) * 2))
#define VI6_WPF_SRCRPF_RPF_ACT_MASK(n) (3 << ((n) * 2))
#define VI6_WPF_HSZCLIP 0x1004
#define VI6_WPF_VSZCLIP 0x1008
#define VI6_WPF_SZCLIP_EN (1 << 28)
#define VI6_WPF_SZCLIP_OFST_MASK (0xff << 16)
#define VI6_WPF_SZCLIP_OFST_SHIFT 16
#define VI6_WPF_SZCLIP_SIZE_MASK (0x1fff << 0)
#define VI6_WPF_SZCLIP_SIZE_SHIFT 0
#define VI6_WPF_OUTFMT 0x100c
#define VI6_WPF_OUTFMT_PDV_MASK (0xff << 24)
#define VI6_WPF_OUTFMT_PDV_SHIFT 24
#define VI6_WPF_OUTFMT_PXA (1 << 23)
#define VI6_WPF_OUTFMT_FLP (1 << 16)
#define VI6_WPF_OUTFMT_SPYCS (1 << 15)
#define VI6_WPF_OUTFMT_SPUVS (1 << 14)
#define VI6_WPF_OUTFMT_DITH_DIS (0 << 12)
#define VI6_WPF_OUTFMT_DITH_EN (3 << 12)
#define VI6_WPF_OUTFMT_DITH_MASK (3 << 12)
#define VI6_WPF_OUTFMT_WRTM_BT601 (0 << 9)
#define VI6_WPF_OUTFMT_WRTM_BT601_EXT (1 << 9)
#define VI6_WPF_OUTFMT_WRTM_BT709 (2 << 9)
#define VI6_WPF_OUTFMT_WRTM_BT709_EXT (3 << 9)
#define VI6_WPF_OUTFMT_WRTM_MASK (7 << 9)
#define VI6_WPF_OUTFMT_CSC (1 << 8)
#define VI6_WPF_OUTFMT_WRFMT_MASK (0x7f << 0)
#define VI6_WPF_OUTFMT_WRFMT_SHIFT 0
#define VI6_WPF_DSWAP 0x1010
#define VI6_WPF_DSWAP_P_LLS (1 << 3)
#define VI6_WPF_DSWAP_P_LWS (1 << 2)
#define VI6_WPF_DSWAP_P_WDS (1 << 1)
#define VI6_WPF_DSWAP_P_BTS (1 << 0)
#define VI6_WPF_RNDCTRL 0x1014
#define VI6_WPF_RNDCTRL_CBRM (1 << 28)
#define VI6_WPF_RNDCTRL_ABRM_TRUNC (0 << 24)
#define VI6_WPF_RNDCTRL_ABRM_ROUND (1 << 24)
#define VI6_WPF_RNDCTRL_ABRM_THRESH (2 << 24)
#define VI6_WPF_RNDCTRL_ABRM_MASK (3 << 24)
#define VI6_WPF_RNDCTRL_ATHRESH_MASK (0xff << 16)
#define VI6_WPF_RNDCTRL_ATHRESH_SHIFT 16
#define VI6_WPF_RNDCTRL_CLMD_FULL (0 << 12)
#define VI6_WPF_RNDCTRL_CLMD_CLIP (1 << 12)
#define VI6_WPF_RNDCTRL_CLMD_EXT (2 << 12)
#define VI6_WPF_RNDCTRL_CLMD_MASK (3 << 12)
#define VI6_WPF_DSTM_STRIDE_Y 0x101c
#define VI6_WPF_DSTM_STRIDE_C 0x1020
#define VI6_WPF_DSTM_ADDR_Y 0x1024
#define VI6_WPF_DSTM_ADDR_C0 0x1028
#define VI6_WPF_DSTM_ADDR_C1 0x102c
#define VI6_WPF_WRBCK_CTRL 0x1034
#define VI6_WPF_WRBCK_CTRL_WBMD (1 << 0)
/* -----------------------------------------------------------------------------
* DPR Control Registers
*/
#define VI6_DPR_RPF_ROUTE(n) (0x2000 + (n) * 4)
#define VI6_DPR_WPF_FPORCH(n) (0x2014 + (n) * 4)
#define VI6_DPR_WPF_FPORCH_FP_WPFN (5 << 8)
#define VI6_DPR_SRU_ROUTE 0x2024
#define VI6_DPR_UDS_ROUTE(n) (0x2028 + (n) * 4)
#define VI6_DPR_LUT_ROUTE 0x203c
#define VI6_DPR_CLU_ROUTE 0x2040
#define VI6_DPR_HST_ROUTE 0x2044
#define VI6_DPR_HSI_ROUTE 0x2048
#define VI6_DPR_BRU_ROUTE 0x204c
#define VI6_DPR_ROUTE_FXA_MASK (0xff << 8)
#define VI6_DPR_ROUTE_FXA_SHIFT 16
#define VI6_DPR_ROUTE_FP_MASK (0xff << 8)
#define VI6_DPR_ROUTE_FP_SHIFT 8
#define VI6_DPR_ROUTE_RT_MASK (0x3f << 0)
#define VI6_DPR_ROUTE_RT_SHIFT 0
#define VI6_DPR_HGO_SMPPT 0x2050
#define VI6_DPR_HGT_SMPPT 0x2054
#define VI6_DPR_SMPPT_TGW_MASK (7 << 8)
#define VI6_DPR_SMPPT_TGW_SHIFT 8
#define VI6_DPR_SMPPT_PT_MASK (0x3f << 0)
#define VI6_DPR_SMPPT_PT_SHIFT 0
#define VI6_DPR_NODE_RPF(n) (n)
#define VI6_DPR_NODE_SRU 16
#define VI6_DPR_NODE_UDS(n) (17 + (n))
#define VI6_DPR_NODE_LUT 22
#define VI6_DPR_NODE_BRU_IN(n) (23 + (n))
#define VI6_DPR_NODE_BRU_OUT 27
#define VI6_DPR_NODE_CLU 29
#define VI6_DPR_NODE_HST 30
#define VI6_DPR_NODE_HSI 31
#define VI6_DPR_NODE_LIF 55
#define VI6_DPR_NODE_WPF(n) (56 + (n))
#define VI6_DPR_NODE_UNUSED 63
/* -----------------------------------------------------------------------------
* SRU Control Registers
*/
#define VI6_SRU_CTRL0 0x2200
#define VI6_SRU_CTRL1 0x2204
#define VI6_SRU_CTRL2 0x2208
/* -----------------------------------------------------------------------------
* UDS Control Registers
*/
#define VI6_UDS_OFFSET 0x100
#define VI6_UDS_CTRL 0x2300
#define VI6_UDS_CTRL_AMD (1 << 30)
#define VI6_UDS_CTRL_FMD (1 << 29)
#define VI6_UDS_CTRL_BLADV (1 << 28)
#define VI6_UDS_CTRL_AON (1 << 25)
#define VI6_UDS_CTRL_ATHON (1 << 24)
#define VI6_UDS_CTRL_BC (1 << 20)
#define VI6_UDS_CTRL_NE_A (1 << 19)
#define VI6_UDS_CTRL_NE_RCR (1 << 18)
#define VI6_UDS_CTRL_NE_GY (1 << 17)
#define VI6_UDS_CTRL_NE_BCB (1 << 16)
#define VI6_UDS_CTRL_TDIPC (1 << 1)
#define VI6_UDS_SCALE 0x2304
#define VI6_UDS_SCALE_HMANT_MASK (0xf << 28)
#define VI6_UDS_SCALE_HMANT_SHIFT 28
#define VI6_UDS_SCALE_HFRAC_MASK (0xfff << 16)
#define VI6_UDS_SCALE_HFRAC_SHIFT 16
#define VI6_UDS_SCALE_VMANT_MASK (0xf << 12)
#define VI6_UDS_SCALE_VMANT_SHIFT 12
#define VI6_UDS_SCALE_VFRAC_MASK (0xfff << 0)
#define VI6_UDS_SCALE_VFRAC_SHIFT 0
#define VI6_UDS_ALPTH 0x2308
#define VI6_UDS_ALPTH_TH1_MASK (0xff << 8)
#define VI6_UDS_ALPTH_TH1_SHIFT 8
#define VI6_UDS_ALPTH_TH0_MASK (0xff << 0)
#define VI6_UDS_ALPTH_TH0_SHIFT 0
#define VI6_UDS_ALPVAL 0x230c
#define VI6_UDS_ALPVAL_VAL2_MASK (0xff << 16)
#define VI6_UDS_ALPVAL_VAL2_SHIFT 16
#define VI6_UDS_ALPVAL_VAL1_MASK (0xff << 8)
#define VI6_UDS_ALPVAL_VAL1_SHIFT 8
#define VI6_UDS_ALPVAL_VAL0_MASK (0xff << 0)
#define VI6_UDS_ALPVAL_VAL0_SHIFT 0
#define VI6_UDS_PASS_BWIDTH 0x2310
#define VI6_UDS_PASS_BWIDTH_H_MASK (0x7f << 16)
#define VI6_UDS_PASS_BWIDTH_H_SHIFT 16
#define VI6_UDS_PASS_BWIDTH_V_MASK (0x7f << 0)
#define VI6_UDS_PASS_BWIDTH_V_SHIFT 0
#define VI6_UDS_IPC 0x2318
#define VI6_UDS_IPC_FIELD (1 << 27)
#define VI6_UDS_IPC_VEDP_MASK (0xfff << 0)
#define VI6_UDS_IPC_VEDP_SHIFT 0
#define VI6_UDS_CLIP_SIZE 0x2324
#define VI6_UDS_CLIP_SIZE_HSIZE_MASK (0x1fff << 16)
#define VI6_UDS_CLIP_SIZE_HSIZE_SHIFT 16
#define VI6_UDS_CLIP_SIZE_VSIZE_MASK (0x1fff << 0)
#define VI6_UDS_CLIP_SIZE_VSIZE_SHIFT 0
#define VI6_UDS_FILL_COLOR 0x2328
#define VI6_UDS_FILL_COLOR_RFILC_MASK (0xff << 16)
#define VI6_UDS_FILL_COLOR_RFILC_SHIFT 16
#define VI6_UDS_FILL_COLOR_GFILC_MASK (0xff << 8)
#define VI6_UDS_FILL_COLOR_GFILC_SHIFT 8
#define VI6_UDS_FILL_COLOR_BFILC_MASK (0xff << 0)
#define VI6_UDS_FILL_COLOR_BFILC_SHIFT 0
/* -----------------------------------------------------------------------------
* LUT Control Registers
*/
#define VI6_LUT_CTRL 0x2800
/* -----------------------------------------------------------------------------
* CLU Control Registers
*/
#define VI6_CLU_CTRL 0x2900
/* -----------------------------------------------------------------------------
* HST Control Registers
*/
#define VI6_HST_CTRL 0x2a00
/* -----------------------------------------------------------------------------
* HSI Control Registers
*/
#define VI6_HSI_CTRL 0x2b00
/* -----------------------------------------------------------------------------
* BRU Control Registers
*/
#define VI6_BRU_INCTRL 0x2c00
#define VI6_BRU_VIRRPF_SIZE 0x2c04
#define VI6_BRU_VIRRPF_LOC 0x2c08
#define VI6_BRU_VIRRPF_COL 0x2c0c
#define VI6_BRU_CTRL(n) (0x2c10 + (n) * 8)
#define VI6_BRU_BLD(n) (0x2c14 + (n) * 8)
#define VI6_BRU_ROP 0x2c30
/* -----------------------------------------------------------------------------
* HGO Control Registers
*/
#define VI6_HGO_OFFSET 0x3000
#define VI6_HGO_SIZE 0x3004
#define VI6_HGO_MODE 0x3008
#define VI6_HGO_LB_TH 0x300c
#define VI6_HGO_LBn_H(n) (0x3010 + (n) * 8)
#define VI6_HGO_LBn_V(n) (0x3014 + (n) * 8)
#define VI6_HGO_R_HISTO 0x3030
#define VI6_HGO_R_MAXMIN 0x3130
#define VI6_HGO_R_SUM 0x3134
#define VI6_HGO_R_LB_DET 0x3138
#define VI6_HGO_G_HISTO 0x3140
#define VI6_HGO_G_MAXMIN 0x3240
#define VI6_HGO_G_SUM 0x3244
#define VI6_HGO_G_LB_DET 0x3248
#define VI6_HGO_B_HISTO 0x3250
#define VI6_HGO_B_MAXMIN 0x3350
#define VI6_HGO_B_SUM 0x3354
#define VI6_HGO_B_LB_DET 0x3358
#define VI6_HGO_REGRST 0x33fc
/* -----------------------------------------------------------------------------
* HGT Control Registers
*/
#define VI6_HGT_OFFSET 0x3400
#define VI6_HGT_SIZE 0x3404
#define VI6_HGT_MODE 0x3408
#define VI6_HGT_HUE_AREA(n) (0x340c + (n) * 4)
#define VI6_HGT_LB_TH 0x3424
#define VI6_HGT_LBn_H(n) (0x3438 + (n) * 8)
#define VI6_HGT_LBn_V(n) (0x342c + (n) * 8)
#define VI6_HGT_HISTO(m, n) (0x3450 + (m) * 128 + (n) * 4)
#define VI6_HGT_MAXMIN 0x3750
#define VI6_HGT_SUM 0x3754
#define VI6_HGT_LB_DET 0x3758
#define VI6_HGT_REGRST 0x37fc
/* -----------------------------------------------------------------------------
* LIF Control Registers
*/
#define VI6_LIF_CTRL 0x3b00
#define VI6_LIF_CTRL_OBTH_MASK (0x7ff << 16)
#define VI6_LIF_CTRL_OBTH_SHIFT 16
#define VI6_LIF_CTRL_CFMT (1 << 4)
#define VI6_LIF_CTRL_REQSEL (1 << 1)
#define VI6_LIF_CTRL_LIF_EN (1 << 0)
#define VI6_LIF_CSBTH 0x3b04
#define VI6_LIF_CSBTH_HBTH_MASK (0x7ff << 16)
#define VI6_LIF_CSBTH_HBTH_SHIFT 16
#define VI6_LIF_CSBTH_LBTH_MASK (0x7ff << 0)
#define VI6_LIF_CSBTH_LBTH_SHIFT 0
/* -----------------------------------------------------------------------------
* Security Control Registers
*/
#define VI6_SECURITY_CTRL0 0x3d00
#define VI6_SECURITY_CTRL1 0x3d04
/* -----------------------------------------------------------------------------
* RPF CLUT Registers
*/
#define VI6_CLUT_TABLE 0x4000
/* -----------------------------------------------------------------------------
* 1D LUT Registers
*/
#define VI6_LUT_TABLE 0x7000
/* -----------------------------------------------------------------------------
* 3D LUT Registers
*/
#define VI6_CLU_ADDR 0x7400
#define VI6_CLU_DATA 0x7404
/* -----------------------------------------------------------------------------
* Formats
*/
#define VI6_FMT_RGB_332 0x00
#define VI6_FMT_XRGB_4444 0x01
#define VI6_FMT_RGBX_4444 0x02
#define VI6_FMT_XRGB_1555 0x04
#define VI6_FMT_RGBX_5551 0x05
#define VI6_FMT_RGB_565 0x06
#define VI6_FMT_AXRGB_86666 0x07
#define VI6_FMT_RGBXA_66668 0x08
#define VI6_FMT_XRGBA_66668 0x09
#define VI6_FMT_ARGBX_86666 0x0a
#define VI6_FMT_AXRXGXB_8262626 0x0b
#define VI6_FMT_XRXGXBA_2626268 0x0c
#define VI6_FMT_ARXGXBX_8626262 0x0d
#define VI6_FMT_RXGXBXA_6262628 0x0e
#define VI6_FMT_XRGB_6666 0x0f
#define VI6_FMT_RGBX_6666 0x10
#define VI6_FMT_XRXGXB_262626 0x11
#define VI6_FMT_RXGXBX_626262 0x12
#define VI6_FMT_ARGB_8888 0x13
#define VI6_FMT_RGBA_8888 0x14
#define VI6_FMT_RGB_888 0x15
#define VI6_FMT_XRGXGB_763763 0x16
#define VI6_FMT_XXRGB_86666 0x17
#define VI6_FMT_BGR_888 0x18
#define VI6_FMT_ARGB_4444 0x19
#define VI6_FMT_RGBA_4444 0x1a
#define VI6_FMT_ARGB_1555 0x1b
#define VI6_FMT_RGBA_5551 0x1c
#define VI6_FMT_ABGR_4444 0x1d
#define VI6_FMT_BGRA_4444 0x1e
#define VI6_FMT_ABGR_1555 0x1f
#define VI6_FMT_BGRA_5551 0x20
#define VI6_FMT_XBXGXR_262626 0x21
#define VI6_FMT_ABGR_8888 0x22
#define VI6_FMT_XXRGB_88565 0x23
#define VI6_FMT_Y_UV_444 0x40
#define VI6_FMT_Y_UV_422 0x41
#define VI6_FMT_Y_UV_420 0x42
#define VI6_FMT_YUV_444 0x46
#define VI6_FMT_YUYV_422 0x47
#define VI6_FMT_YYUV_422 0x48
#define VI6_FMT_YUV_420 0x49
#define VI6_FMT_Y_U_V_444 0x4a
#define VI6_FMT_Y_U_V_422 0x4b
#define VI6_FMT_Y_U_V_420 0x4c
#endif /* __VSP1_REGS_H__ */
drivers/media/platform/vsp1/vsp1_rpf.c 0 → 100644
View file @ 26e0ca22
/*
* vsp1_rpf.c -- R-Car VSP1 Read Pixel Formatter
*
* Copyright (C) 2013 Renesas 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/device.h>
#include <media/v4l2-subdev.h>
#include "vsp1.h"
#include "vsp1_rwpf.h"
#include "vsp1_video.h"
#define RPF_MAX_WIDTH 8190
#define RPF_MAX_HEIGHT 8190
/* -----------------------------------------------------------------------------
* Device Access
*/
static inline u32 vsp1_rpf_read(struct vsp1_rwpf *rpf, u32 reg)
{
return vsp1_read(rpf->entity.vsp1,
reg + rpf->entity.index * VI6_RPF_OFFSET);
}
static inline void vsp1_rpf_write(struct vsp1_rwpf *rpf, u32 reg, u32 data)
{
vsp1_write(rpf->entity.vsp1,
reg + rpf->entity.index * VI6_RPF_OFFSET, data);
}
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Core Operations
*/
static int rpf_s_stream(struct v4l2_subdev *subdev, int enable)
{
struct vsp1_rwpf *rpf = to_rwpf(subdev);
const struct vsp1_format_info *fmtinfo = rpf->video.fmtinfo;
const struct v4l2_pix_format_mplane *format = &rpf->video.format;
u32 pstride;
u32 infmt;
if (!enable)
return 0;
/* Source size and stride. Cropping isn't supported yet. */
vsp1_rpf_write(rpf, VI6_RPF_SRC_BSIZE,
(format->width << VI6_RPF_SRC_BSIZE_BHSIZE_SHIFT) |
(format->height << VI6_RPF_SRC_BSIZE_BVSIZE_SHIFT));
vsp1_rpf_write(rpf, VI6_RPF_SRC_ESIZE,
(format->width << VI6_RPF_SRC_ESIZE_EHSIZE_SHIFT) |
(format->height << VI6_RPF_SRC_ESIZE_EVSIZE_SHIFT));
pstride = format->plane_fmt[0].bytesperline
<< VI6_RPF_SRCM_PSTRIDE_Y_SHIFT;
if (format->num_planes > 1)
pstride |= format->plane_fmt[1].bytesperline
<< VI6_RPF_SRCM_PSTRIDE_C_SHIFT;
vsp1_rpf_write(rpf, VI6_RPF_SRCM_PSTRIDE, pstride);
/* Format */
infmt = VI6_RPF_INFMT_CIPM
| (fmtinfo->hwfmt << VI6_RPF_INFMT_RDFMT_SHIFT);
if (fmtinfo->swap_yc)
infmt |= VI6_RPF_INFMT_SPYCS;
if (fmtinfo->swap_uv)
infmt |= VI6_RPF_INFMT_SPUVS;
if (rpf->entity.formats[RWPF_PAD_SINK].code !=
rpf->entity.formats[RWPF_PAD_SOURCE].code)
infmt |= VI6_RPF_INFMT_CSC;
vsp1_rpf_write(rpf, VI6_RPF_INFMT, infmt);
vsp1_rpf_write(rpf, VI6_RPF_DSWAP, fmtinfo->swap);
/* Output location. Composing isn't supported yet. */
vsp1_rpf_write(rpf, VI6_RPF_LOC, 0);
/* Disable alpha, mask and color key. Set the alpha channel to a fixed
* value of 255.
*/
vsp1_rpf_write(rpf, VI6_RPF_ALPH_SEL, VI6_RPF_ALPH_SEL_ASEL_FIXED);
vsp1_rpf_write(rpf, VI6_RPF_VRTCOL_SET,
255 << VI6_RPF_VRTCOL_SET_LAYA_SHIFT);
vsp1_rpf_write(rpf, VI6_RPF_MSK_CTRL, 0);
vsp1_rpf_write(rpf, VI6_RPF_CKEY_CTRL, 0);
return 0;
}
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Operations
*/
static struct v4l2_subdev_video_ops rpf_video_ops = {
.s_stream = rpf_s_stream,
};
static struct v4l2_subdev_pad_ops rpf_pad_ops = {
.enum_mbus_code = vsp1_rwpf_enum_mbus_code,
.enum_frame_size = vsp1_rwpf_enum_frame_size,
.get_fmt = vsp1_rwpf_get_format,
.set_fmt = vsp1_rwpf_set_format,
};
static struct v4l2_subdev_ops rpf_ops = {
.video = &rpf_video_ops,
.pad = &rpf_pad_ops,
};
/* -----------------------------------------------------------------------------
* Video Device Operations
*/
static void rpf_vdev_queue(struct vsp1_video *video,
struct vsp1_video_buffer *buf)
{
struct vsp1_rwpf *rpf = container_of(video, struct vsp1_rwpf, video);
vsp1_rpf_write(rpf, VI6_RPF_SRCM_ADDR_Y, buf->addr[0]);
if (buf->buf.num_planes > 1)
vsp1_rpf_write(rpf, VI6_RPF_SRCM_ADDR_C0, buf->addr[1]);
if (buf->buf.num_planes > 2)
vsp1_rpf_write(rpf, VI6_RPF_SRCM_ADDR_C1, buf->addr[2]);
}
static const struct vsp1_video_operations rpf_vdev_ops = {
.queue = rpf_vdev_queue,
};
/* -----------------------------------------------------------------------------
* Initialization and Cleanup
*/
struct vsp1_rwpf *vsp1_rpf_create(struct vsp1_device *vsp1, unsigned int index)
{
struct v4l2_subdev *subdev;
struct vsp1_video *video;
struct vsp1_rwpf *rpf;
int ret;
rpf = devm_kzalloc(vsp1->dev, sizeof(*rpf), GFP_KERNEL);
if (rpf == NULL)
return ERR_PTR(-ENOMEM);
rpf->max_width = RPF_MAX_WIDTH;
rpf->max_height = RPF_MAX_HEIGHT;
rpf->entity.type = VSP1_ENTITY_RPF;
rpf->entity.index = index;
rpf->entity.id = VI6_DPR_NODE_RPF(index);
ret = vsp1_entity_init(vsp1, &rpf->entity, 2);
if (ret < 0)
return ERR_PTR(ret);
/* Initialize the V4L2 subdev. */
subdev = &rpf->entity.subdev;
v4l2_subdev_init(subdev, &rpf_ops);
subdev->entity.ops = &vsp1_media_ops;
subdev->internal_ops = &vsp1_subdev_internal_ops;
snprintf(subdev->name, sizeof(subdev->name), "%s rpf.%u",
dev_name(vsp1->dev), index);
v4l2_set_subdevdata(subdev, rpf);
subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
vsp1_entity_init_formats(subdev, NULL);
/* Initialize the video device. */
video = &rpf->video;
video->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
video->vsp1 = vsp1;
video->ops = &rpf_vdev_ops;
ret = vsp1_video_init(video, &rpf->entity);
if (ret < 0)
goto error_video;
/* Connect the video device to the RPF. */
ret = media_entity_create_link(&rpf->video.video.entity, 0,
&rpf->entity.subdev.entity,
RWPF_PAD_SINK,
MEDIA_LNK_FL_ENABLED |
MEDIA_LNK_FL_IMMUTABLE);
if (ret < 0)
goto error_link;
return rpf;
error_link:
vsp1_video_cleanup(video);
error_video:
media_entity_cleanup(&rpf->entity.subdev.entity);
return ERR_PTR(ret);
}
drivers/media/platform/vsp1/vsp1_rwpf.c 0 → 100644
View file @ 26e0ca22
/*
* vsp1_rwpf.c -- R-Car VSP1 Read and Write Pixel Formatters
*
* Copyright (C) 2013 Renesas 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 <media/v4l2-subdev.h>
#include "vsp1.h"
#include "vsp1_rwpf.h"
#include "vsp1_video.h"
#define RWPF_MIN_WIDTH 1
#define RWPF_MIN_HEIGHT 1
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Pad Operations
*/
int vsp1_rwpf_enum_mbus_code(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_mbus_code_enum *code)
{
static const unsigned int codes[] = {
V4L2_MBUS_FMT_ARGB8888_1X32,
V4L2_MBUS_FMT_AYUV8_1X32,
};
if (code->index >= ARRAY_SIZE(codes))
return -EINVAL;
code->code = codes[code->index];
return 0;
}
int vsp1_rwpf_enum_frame_size(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_frame_size_enum *fse)
{
struct vsp1_rwpf *rwpf = to_rwpf(subdev);
struct v4l2_mbus_framefmt *format;
format = v4l2_subdev_get_try_format(fh, fse->pad);
if (fse->index || fse->code != format->code)
return -EINVAL;
if (fse->pad == RWPF_PAD_SINK) {
fse->min_width = RWPF_MIN_WIDTH;
fse->max_width = rwpf->max_width;
fse->min_height = RWPF_MIN_HEIGHT;
fse->max_height = rwpf->max_height;
} else {
/* The size on the source pad are fixed and always identical to
* the size on the sink pad.
*/
fse->min_width = format->width;
fse->max_width = format->width;
fse->min_height = format->height;
fse->max_height = format->height;
}
return 0;
}
int vsp1_rwpf_get_format(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct vsp1_rwpf *rwpf = to_rwpf(subdev);
fmt->format = *vsp1_entity_get_pad_format(&rwpf->entity, fh, fmt->pad,
fmt->which);
return 0;
}
int vsp1_rwpf_set_format(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct vsp1_rwpf *rwpf = to_rwpf(subdev);
struct v4l2_mbus_framefmt *format;
/* Default to YUV if the requested format is not supported. */
if (fmt->format.code != V4L2_MBUS_FMT_ARGB8888_1X32 &&
fmt->format.code != V4L2_MBUS_FMT_AYUV8_1X32)
fmt->format.code = V4L2_MBUS_FMT_AYUV8_1X32;
format = vsp1_entity_get_pad_format(&rwpf->entity, fh, fmt->pad,
fmt->which);
if (fmt->pad == RWPF_PAD_SOURCE) {
/* The RWPF performs format conversion but can't scale, only the
* format code can be changed on the source pad.
*/
format->code = fmt->format.code;
fmt->format = *format;
return 0;
}
format->code = fmt->format.code;
format->width = clamp_t(unsigned int, fmt->format.width,
RWPF_MIN_WIDTH, rwpf->max_width);
format->height = clamp_t(unsigned int, fmt->format.height,
RWPF_MIN_HEIGHT, rwpf->max_height);
format->field = V4L2_FIELD_NONE;
format->colorspace = V4L2_COLORSPACE_SRGB;
fmt->format = *format;
/* Propagate the format to the source pad. */
format = vsp1_entity_get_pad_format(&rwpf->entity, fh, RWPF_PAD_SOURCE,
fmt->which);
*format = fmt->format;
return 0;
}
drivers/media/platform/vsp1/vsp1_rwpf.h 0 → 100644
View file @ 26e0ca22
/*
* vsp1_rwpf.h -- R-Car VSP1 Read and Write Pixel Formatters
*
* Copyright (C) 2013 Renesas 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_RWPF_H__
#define __VSP1_RWPF_H__
#include <media/media-entity.h>
#include <media/v4l2-subdev.h>
#include "vsp1.h"
#include "vsp1_entity.h"
#include "vsp1_video.h"
#define RWPF_PAD_SINK 0
#define RWPF_PAD_SOURCE 1
struct vsp1_rwpf {
struct vsp1_entity entity;
struct vsp1_video video;
unsigned int max_width;
unsigned int max_height;
};
static inline struct vsp1_rwpf *to_rwpf(struct v4l2_subdev *subdev)
{
return container_of(subdev, struct vsp1_rwpf, entity.subdev);
}
struct vsp1_rwpf *vsp1_rpf_create(struct vsp1_device *vsp1, unsigned int index);
struct vsp1_rwpf *vsp1_wpf_create(struct vsp1_device *vsp1, unsigned int index);
int vsp1_rwpf_enum_mbus_code(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_mbus_code_enum *code);
int vsp1_rwpf_enum_frame_size(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_frame_size_enum *fse);
int vsp1_rwpf_get_format(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt);
int vsp1_rwpf_set_format(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt);
#endif /* __VSP1_RWPF_H__ */
drivers/media/platform/vsp1/vsp1_uds.c 0 → 100644
View file @ 26e0ca22
/*
* vsp1_uds.c -- R-Car VSP1 Up and Down Scaler
*
* Copyright (C) 2013 Renesas 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/device.h>
#include <linux/gfp.h>
#include <media/v4l2-subdev.h>
#include "vsp1.h"
#include "vsp1_uds.h"
#define UDS_MIN_SIZE 4U
#define UDS_MAX_SIZE 8190U
#define UDS_MIN_FACTOR 0x0100
#define UDS_MAX_FACTOR 0xffff
/* -----------------------------------------------------------------------------
* Device Access
*/
static inline u32 vsp1_uds_read(struct vsp1_uds *uds, u32 reg)
{
return vsp1_read(uds->entity.vsp1,
reg + uds->entity.index * VI6_UDS_OFFSET);
}
static inline void vsp1_uds_write(struct vsp1_uds *uds, u32 reg, u32 data)
{
vsp1_write(uds->entity.vsp1,
reg + uds->entity.index * VI6_UDS_OFFSET, data);
}
/* -----------------------------------------------------------------------------
* Scaling Computation
*/
/*
* uds_output_size - Return the output size for an input size and scaling ratio
* @input: input size in pixels
* @ratio: scaling ratio in U4.12 fixed-point format
*/
static unsigned int uds_output_size(unsigned int input, unsigned int ratio)
{
if (ratio > 4096) {
/* Down-scaling */
unsigned int mp;
mp = ratio / 4096;
mp = mp < 4 ? 1 : (mp < 8 ? 2 : 4);
return (input - 1) / mp * mp * 4096 / ratio + 1;
} else {
/* Up-scaling */
return (input - 1) * 4096 / ratio + 1;
}
}
/*
* uds_output_limits - Return the min and max output sizes for an input size
* @input: input size in pixels
* @minimum: minimum output size (returned)
* @maximum: maximum output size (returned)
*/
static void uds_output_limits(unsigned int input,
unsigned int *minimum, unsigned int *maximum)
{
*minimum = max(uds_output_size(input, UDS_MAX_FACTOR), UDS_MIN_SIZE);
*maximum = min(uds_output_size(input, UDS_MIN_FACTOR), UDS_MAX_SIZE);
}
/*
* uds_passband_width - Return the passband filter width for a scaling ratio
* @ratio: scaling ratio in U4.12 fixed-point format
*/
static unsigned int uds_passband_width(unsigned int ratio)
{
if (ratio >= 4096) {
/* Down-scaling */
unsigned int mp;
mp = ratio / 4096;
mp = mp < 4 ? 1 : (mp < 8 ? 2 : 4);
return 64 * 4096 * mp / ratio;
} else {
/* Up-scaling */
return 64;
}
}
static unsigned int uds_compute_ratio(unsigned int input, unsigned int output)
{
/* TODO: This is an approximation that will need to be refined. */
return (input - 1) * 4096 / (output - 1);
}
static void uds_compute_ratios(struct vsp1_uds *uds)
{
struct v4l2_mbus_framefmt *input = &uds->entity.formats[UDS_PAD_SINK];
struct v4l2_mbus_framefmt *output =
&uds->entity.formats[UDS_PAD_SOURCE];
uds->hscale = uds_compute_ratio(input->width, output->width);
uds->vscale = uds_compute_ratio(input->height, output->height);
dev_dbg(uds->entity.vsp1->dev, "hscale %u vscale %u\n",
uds->hscale, uds->vscale);
}
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Core Operations
*/
static int uds_s_stream(struct v4l2_subdev *subdev, int enable)
{
const struct v4l2_mbus_framefmt *format;
struct vsp1_uds *uds = to_uds(subdev);
if (!enable)
return 0;
/* Enable multi-tap scaling. */
vsp1_uds_write(uds, VI6_UDS_CTRL, VI6_UDS_CTRL_BC);
vsp1_uds_write(uds, VI6_UDS_PASS_BWIDTH,
(uds_passband_width(uds->hscale)
<< VI6_UDS_PASS_BWIDTH_H_SHIFT) |
(uds_passband_width(uds->vscale)
<< VI6_UDS_PASS_BWIDTH_V_SHIFT));
/* Set the scaling ratios and the output size. */
format = &uds->entity.formats[UDS_PAD_SOURCE];
vsp1_uds_write(uds, VI6_UDS_SCALE,
(uds->hscale << VI6_UDS_SCALE_HFRAC_SHIFT) |
(uds->vscale << VI6_UDS_SCALE_VFRAC_SHIFT));
vsp1_uds_write(uds, VI6_UDS_CLIP_SIZE,
(format->width << VI6_UDS_CLIP_SIZE_HSIZE_SHIFT) |
(format->height << VI6_UDS_CLIP_SIZE_VSIZE_SHIFT));
return 0;
}
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Pad Operations
*/
static int uds_enum_mbus_code(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_mbus_code_enum *code)
{
static const unsigned int codes[] = {
V4L2_MBUS_FMT_ARGB8888_1X32,
V4L2_MBUS_FMT_AYUV8_1X32,
};
if (code->pad == UDS_PAD_SINK) {
if (code->index >= ARRAY_SIZE(codes))
return -EINVAL;
code->code = codes[code->index];
} else {
struct v4l2_mbus_framefmt *format;
/* The UDS can't perform format conversion, the sink format is
* always identical to the source format.
*/
if (code->index)
return -EINVAL;
format = v4l2_subdev_get_try_format(fh, UDS_PAD_SINK);
code->code = format->code;
}
return 0;
}
static int uds_enum_frame_size(struct v4l2_subdev *subdev,
struct v4l2_subdev_fh *fh,
struct v4l2_subdev_frame_size_enum *fse)
{
struct v4l2_mbus_framefmt *format;
format = v4l2_subdev_get_try_format(fh, UDS_PAD_SINK);
if (fse->index || fse->code != format->code)
return -EINVAL;
if (fse->pad == UDS_PAD_SINK) {
fse->min_width = UDS_MIN_SIZE;
fse->max_width = UDS_MAX_SIZE;
fse->min_height = UDS_MIN_SIZE;
fse->max_height = UDS_MAX_SIZE;
} else {
uds_output_limits(format->width, &fse->min_width,
&fse->max_width);
uds_output_limits(format->height, &fse->min_height,
&fse->max_height);
}
return 0;
}
static int uds_get_format(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct vsp1_uds *uds = to_uds(subdev);
fmt->format = *vsp1_entity_get_pad_format(&uds->entity, fh, fmt->pad,
fmt->which);
return 0;
}
static void uds_try_format(struct vsp1_uds *uds, struct v4l2_subdev_fh *fh,
unsigned int pad, struct v4l2_mbus_framefmt *fmt,
enum v4l2_subdev_format_whence which)
{
struct v4l2_mbus_framefmt *format;
unsigned int minimum;
unsigned int maximum;
switch (pad) {
case UDS_PAD_SINK:
/* Default to YUV if the requested format is not supported. */
if (fmt->code != V4L2_MBUS_FMT_ARGB8888_1X32 &&
fmt->code != V4L2_MBUS_FMT_AYUV8_1X32)
fmt->code = V4L2_MBUS_FMT_AYUV8_1X32;
fmt->width = clamp(fmt->width, UDS_MIN_SIZE, UDS_MAX_SIZE);
fmt->height = clamp(fmt->height, UDS_MIN_SIZE, UDS_MAX_SIZE);
break;
case UDS_PAD_SOURCE:
/* The UDS scales but can't perform format conversion. */
format = vsp1_entity_get_pad_format(&uds->entity, fh,
UDS_PAD_SINK, which);
fmt->code = format->code;
uds_output_limits(format->width, &minimum, &maximum);
fmt->width = clamp(fmt->width, minimum, maximum);
uds_output_limits(format->height, &minimum, &maximum);
fmt->height = clamp(fmt->height, minimum, maximum);
break;
}
fmt->field = V4L2_FIELD_NONE;
fmt->colorspace = V4L2_COLORSPACE_SRGB;
}
static int uds_set_format(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh,
struct v4l2_subdev_format *fmt)
{
struct vsp1_uds *uds = to_uds(subdev);
struct v4l2_mbus_framefmt *format;
uds_try_format(uds, fh, fmt->pad, &fmt->format, fmt->which);
format = vsp1_entity_get_pad_format(&uds->entity, fh, fmt->pad,
fmt->which);
*format = fmt->format;
if (fmt->pad == UDS_PAD_SINK) {
/* Propagate the format to the source pad. */
format = vsp1_entity_get_pad_format(&uds->entity, fh,
UDS_PAD_SOURCE, fmt->which);
*format = fmt->format;
uds_try_format(uds, fh, UDS_PAD_SOURCE, format, fmt->which);
}
if (fmt->which == V4L2_SUBDEV_FORMAT_ACTIVE)
uds_compute_ratios(uds);
return 0;
}
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Operations
*/
static struct v4l2_subdev_video_ops uds_video_ops = {
.s_stream = uds_s_stream,
};
static struct v4l2_subdev_pad_ops uds_pad_ops = {
.enum_mbus_code = uds_enum_mbus_code,
.enum_frame_size = uds_enum_frame_size,
.get_fmt = uds_get_format,
.set_fmt = uds_set_format,
};
static struct v4l2_subdev_ops uds_ops = {
.video = &uds_video_ops,
.pad = &uds_pad_ops,
};
/* -----------------------------------------------------------------------------
* Initialization and Cleanup
*/
struct vsp1_uds *vsp1_uds_create(struct vsp1_device *vsp1, unsigned int index)
{
struct v4l2_subdev *subdev;
struct vsp1_uds *uds;
int ret;
uds = devm_kzalloc(vsp1->dev, sizeof(*uds), GFP_KERNEL);
if (uds == NULL)
return ERR_PTR(-ENOMEM);
uds->entity.type = VSP1_ENTITY_UDS;
uds->entity.index = index;
uds->entity.id = VI6_DPR_NODE_UDS(index);
ret = vsp1_entity_init(vsp1, &uds->entity, 2);
if (ret < 0)
return ERR_PTR(ret);
/* Initialize the V4L2 subdev. */
subdev = &uds->entity.subdev;
v4l2_subdev_init(subdev, &uds_ops);
subdev->entity.ops = &vsp1_media_ops;
subdev->internal_ops = &vsp1_subdev_internal_ops;
snprintf(subdev->name, sizeof(subdev->name), "%s uds.%u",
dev_name(vsp1->dev), index);
v4l2_set_subdevdata(subdev, uds);
subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
vsp1_entity_init_formats(subdev, NULL);
return uds;
}
drivers/media/platform/vsp1/vsp1_uds.h 0 → 100644
View file @ 26e0ca22
/*
* vsp1_uds.h -- R-Car VSP1 Up and Down Scaler
*
* Copyright (C) 2013 Renesas 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_UDS_H__
#define __VSP1_UDS_H__
#include <media/media-entity.h>
#include <media/v4l2-subdev.h>
#include "vsp1_entity.h"
struct vsp1_device;
#define UDS_PAD_SINK 0
#define UDS_PAD_SOURCE 1
struct vsp1_uds {
struct vsp1_entity entity;
unsigned int hscale;
unsigned int vscale;
};
static inline struct vsp1_uds *to_uds(struct v4l2_subdev *subdev)
{
return container_of(subdev, struct vsp1_uds, entity.subdev);
}
struct vsp1_uds *vsp1_uds_create(struct vsp1_device *vsp1, unsigned int index);
#endif /* __VSP1_UDS_H__ */
drivers/media/platform/vsp1/vsp1_video.c 0 → 100644
View file @ 26e0ca22
/*
* vsp1_video.c -- R-Car VSP1 Video Node
*
* Copyright (C) 2013 Renesas 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/module.h>
#include <linux/mutex.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/v4l2-mediabus.h>
#include <linux/videodev2.h>
#include <media/media-entity.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-fh.h>
#include <media/v4l2-ioctl.h>
#include <media/v4l2-subdev.h>
#include <media/videobuf2-core.h>
#include <media/videobuf2-dma-contig.h>
#include "vsp1.h"
#include "vsp1_entity.h"
#include "vsp1_rwpf.h"
#include "vsp1_video.h"
#define VSP1_VIDEO_DEF_FORMAT V4L2_PIX_FMT_YUYV
#define VSP1_VIDEO_DEF_WIDTH 1024
#define VSP1_VIDEO_DEF_HEIGHT 768
#define VSP1_VIDEO_MIN_WIDTH 2U
#define VSP1_VIDEO_MAX_WIDTH 8190U
#define VSP1_VIDEO_MIN_HEIGHT 2U
#define VSP1_VIDEO_MAX_HEIGHT 8190U
/* -----------------------------------------------------------------------------
* Helper functions
*/
static const struct vsp1_format_info vsp1_video_formats[] = {
{ V4L2_PIX_FMT_RGB332, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_RGB444, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_RGB555, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_RGB565, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_BGR24, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_RGB24, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_BGR32, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_RGB32, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_UYVY, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_VYUY, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_YUYV, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_YVYU, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_NV12M, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_NV21M, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_NV16M, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_NV61M, V4L2_MBUS_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 },
{ V4L2_PIX_FMT_YUV420M, V4L2_MBUS_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 },
};
/*
* vsp1_get_format_info - Retrieve format information for a 4CC
* @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.
*/
static const struct vsp1_format_info *vsp1_get_format_info(u32 fourcc)
{
unsigned int i;
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;
}
static struct v4l2_subdev *
vsp1_video_remote_subdev(struct media_pad *local, u32 *pad)
{
struct media_pad *remote;
remote = media_entity_remote_pad(local);
if (remote == NULL ||
media_entity_type(remote->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
return NULL;
if (pad)
*pad = remote->index;
return media_entity_to_v4l2_subdev(remote->entity);
}
static int vsp1_video_verify_format(struct vsp1_video *video)
{
struct v4l2_subdev_format fmt;
struct v4l2_subdev *subdev;
int ret;
subdev = vsp1_video_remote_subdev(&video->pad, &fmt.pad);
if (subdev == NULL)
return -EINVAL;
fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
ret = v4l2_subdev_call(subdev, pad, get_fmt, NULL, &fmt);
if (ret < 0)
return ret == -ENOIOCTLCMD ? -EINVAL : ret;
if (video->fmtinfo->mbus != fmt.format.code ||
video->format.height != fmt.format.height ||
video->format.width != fmt.format.width)
return -EINVAL;
return 0;
}
static int __vsp1_video_try_format(struct vsp1_video *video,
struct v4l2_pix_format_mplane *pix,
const struct vsp1_format_info **fmtinfo)
{
const struct vsp1_format_info *info;
unsigned int width = pix->width;
unsigned int height = pix->height;
unsigned int i;
/* Retrieve format information and select the default format if the
* requested format isn't supported.
*/
info = vsp1_get_format_info(pix->pixelformat);
if (info == NULL)
info = vsp1_get_format_info(VSP1_VIDEO_DEF_FORMAT);
pix->pixelformat = info->fourcc;
pix->colorspace = V4L2_COLORSPACE_SRGB;
pix->field = V4L2_FIELD_NONE;
memset(pix->reserved, 0, sizeof(pix->reserved));
/* Align the width and height for YUV 4:2:2 and 4:2:0 formats. */
width = round_down(width, info->hsub);
height = round_down(height, info->vsub);
/* Clamp the width and height. */
pix->width = clamp(width, VSP1_VIDEO_MIN_WIDTH, VSP1_VIDEO_MAX_WIDTH);
pix->height = clamp(height, VSP1_VIDEO_MIN_HEIGHT,
VSP1_VIDEO_MAX_HEIGHT);
/* Compute and clamp the stride and image size. While not documented in
* the datasheet, strides not aligned to a multiple of 128 bytes result
* in image corruption.
*/
for (i = 0; i < max(info->planes, 2U); ++i) {
unsigned int hsub = i > 0 ? info->hsub : 1;
unsigned int vsub = i > 0 ? info->vsub : 1;
unsigned int align = 128;
unsigned int bpl;
bpl = clamp_t(unsigned int, pix->plane_fmt[i].bytesperline,
pix->width / hsub * info->bpp[i] / 8,
round_down(65535U, align));
pix->plane_fmt[i].bytesperline = round_up(bpl, align);
pix->plane_fmt[i].sizeimage = pix->plane_fmt[i].bytesperline
* pix->height / vsub;
}
if (info->planes == 3) {
/* The second and third planes must have the same stride. */
pix->plane_fmt[2].bytesperline = pix->plane_fmt[1].bytesperline;
pix->plane_fmt[2].sizeimage = pix->plane_fmt[1].sizeimage;
}
pix->num_planes = info->planes;
if (fmtinfo)
*fmtinfo = info;
return 0;
}
static bool
vsp1_video_format_adjust(struct vsp1_video *video,
const struct v4l2_pix_format_mplane *format,
struct v4l2_pix_format_mplane *adjust)
{
unsigned int i;
*adjust = *format;
__vsp1_video_try_format(video, adjust, NULL);
if (format->width != adjust->width ||
format->height != adjust->height ||
format->pixelformat != adjust->pixelformat ||
format->num_planes != adjust->num_planes)
return false;
for (i = 0; i < format->num_planes; ++i) {
if (format->plane_fmt[i].bytesperline !=
adjust->plane_fmt[i].bytesperline)
return false;
adjust->plane_fmt[i].sizeimage =
max(adjust->plane_fmt[i].sizeimage,
format->plane_fmt[i].sizeimage);
}
return true;
}
/* -----------------------------------------------------------------------------
* Pipeline Management
*/
static int vsp1_pipeline_validate_branch(struct vsp1_rwpf *input,
struct vsp1_rwpf *output)
{
struct vsp1_entity *entity;
unsigned int entities = 0;
struct media_pad *pad;
bool uds_found = false;
pad = media_entity_remote_pad(&input->entity.pads[RWPF_PAD_SOURCE]);
while (1) {
if (pad == NULL)
return -EPIPE;
/* We've reached a video node, that shouldn't have happened. */
if (media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
return -EPIPE;
entity = to_vsp1_entity(media_entity_to_v4l2_subdev(pad->entity));
/* We've reached the WPF, we're done. */
if (entity->type == VSP1_ENTITY_WPF)
break;
/* Ensure the branch has no loop. */
if (entities & (1 << entity->subdev.entity.id))
return -EPIPE;
entities |= 1 << entity->subdev.entity.id;
/* UDS can't be chained. */
if (entity->type == VSP1_ENTITY_UDS) {
if (uds_found)
return -EPIPE;
uds_found = true;
}
/* Follow the source link. The link setup operations ensure
* that the output fan-out can't be more than one, there is thus
* no need to verify here that only a single source link is
* activated.
*/
pad = &entity->pads[entity->source_pad];
pad = media_entity_remote_pad(pad);
}
/* The last entity must be the output WPF. */
if (entity != &output->entity)
return -EPIPE;
return 0;
}
static int vsp1_pipeline_validate(struct vsp1_pipeline *pipe,
struct vsp1_video *video)
{
struct media_entity_graph graph;
struct media_entity *entity = &video->video.entity;
struct media_device *mdev = entity->parent;
unsigned int i;
int ret;
mutex_lock(&mdev->graph_mutex);
/* Walk the graph to locate the entities and video nodes. */
media_entity_graph_walk_start(&graph, entity);
while ((entity = media_entity_graph_walk_next(&graph))) {
struct v4l2_subdev *subdev;
struct vsp1_rwpf *rwpf;
struct vsp1_entity *e;
if (media_entity_type(entity) != MEDIA_ENT_T_V4L2_SUBDEV) {
pipe->num_video++;
continue;
}
subdev = media_entity_to_v4l2_subdev(entity);
e = to_vsp1_entity(subdev);
list_add_tail(&e->list_pipe, &pipe->entities);
if (e->type == VSP1_ENTITY_RPF) {
rwpf = to_rwpf(subdev);
pipe->inputs[pipe->num_inputs++] = rwpf;
rwpf->video.pipe_index = pipe->num_inputs;
} else if (e->type == VSP1_ENTITY_WPF) {
rwpf = to_rwpf(subdev);
pipe->output = to_rwpf(subdev);
rwpf->video.pipe_index = 0;
} else if (e->type == VSP1_ENTITY_LIF) {
pipe->lif = e;
}
}
mutex_unlock(&mdev->graph_mutex);
/* We need one output and at least one input. */
if (pipe->num_inputs == 0 || !pipe->output) {
ret = -EPIPE;
goto error;
}
/* Follow links downstream for each input and make sure the graph
* contains no loop and that all branches end at the output WPF.
*/
for (i = 0; i < pipe->num_inputs; ++i) {
ret = vsp1_pipeline_validate_branch(pipe->inputs[i],
pipe->output);
if (ret < 0)
goto error;
}
return 0;
error:
INIT_LIST_HEAD(&pipe->entities);
pipe->buffers_ready = 0;
pipe->num_video = 0;
pipe->num_inputs = 0;
pipe->output = NULL;
pipe->lif = NULL;
return ret;
}
static int vsp1_pipeline_init(struct vsp1_pipeline *pipe,
struct vsp1_video *video)
{
int ret;
mutex_lock(&pipe->lock);
/* If we're the first user validate and initialize the pipeline. */
if (pipe->use_count == 0) {
ret = vsp1_pipeline_validate(pipe, video);
if (ret < 0)
goto done;
}
pipe->use_count++;
ret = 0;
done:
mutex_unlock(&pipe->lock);
return ret;
}
static void vsp1_pipeline_cleanup(struct vsp1_pipeline *pipe)
{
mutex_lock(&pipe->lock);
/* If we're the last user clean up the pipeline. */
if (--pipe->use_count == 0) {
INIT_LIST_HEAD(&pipe->entities);
pipe->state = VSP1_PIPELINE_STOPPED;
pipe->buffers_ready = 0;
pipe->num_video = 0;
pipe->num_inputs = 0;
pipe->output = NULL;
pipe->lif = NULL;
}
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 int vsp1_pipeline_stop(struct vsp1_pipeline *pipe)
{
struct vsp1_entity *entity;
unsigned long flags;
int ret;
spin_lock_irqsave(&pipe->irqlock, flags);
pipe->state = VSP1_PIPELINE_STOPPING;
spin_unlock_irqrestore(&pipe->irqlock, flags);
ret = wait_event_timeout(pipe->wq, pipe->state == VSP1_PIPELINE_STOPPED,
msecs_to_jiffies(500));
ret = ret == 0 ? -ETIMEDOUT : 0;
list_for_each_entry(entity, &pipe->entities, list_pipe) {
if (entity->route)
vsp1_write(entity->vsp1, entity->route,
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
*
* This function completes the current buffer by filling its sequence number,
* time stamp and payload size, and hands it back to the videobuf core.
*
* Return the next queued buffer or NULL if the queue is empty.
*/
static struct vsp1_video_buffer *
vsp1_video_complete_buffer(struct vsp1_video *video)
{
struct vsp1_video_buffer *next = NULL;
struct vsp1_video_buffer *done;
unsigned long flags;
unsigned int i;
spin_lock_irqsave(&video->irqlock, flags);
if (list_empty(&video->irqqueue)) {
spin_unlock_irqrestore(&video->irqlock, flags);
return NULL;
}
done = list_first_entry(&video->irqqueue,
struct vsp1_video_buffer, queue);
list_del(&done->queue);
if (!list_empty(&video->irqqueue))
next = list_first_entry(&video->irqqueue,
struct vsp1_video_buffer, queue);
spin_unlock_irqrestore(&video->irqlock, flags);
done->buf.v4l2_buf.sequence = video->sequence++;
v4l2_get_timestamp(&done->buf.v4l2_buf.timestamp);
for (i = 0; i < done->buf.num_planes; ++i)
vb2_set_plane_payload(&done->buf, i, done->length[i]);
vb2_buffer_done(&done->buf, VB2_BUF_STATE_DONE);
return next;
}
static void vsp1_video_frame_end(struct vsp1_pipeline *pipe,
struct vsp1_video *video)
{
struct vsp1_video_buffer *buf;
unsigned long flags;
buf = vsp1_video_complete_buffer(video);
if (buf == NULL)
return;
spin_lock_irqsave(&pipe->irqlock, flags);
video->ops->queue(video, buf);
pipe->buffers_ready |= 1 << video->pipe_index;
spin_unlock_irqrestore(&pipe->irqlock, flags);
}
void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe)
{
unsigned long flags;
unsigned int i;
if (pipe == NULL)
return;
/* Complete buffers on all video nodes. */
for (i = 0; i < pipe->num_inputs; ++i)
vsp1_video_frame_end(pipe, &pipe->inputs[i]->video);
if (!pipe->lif)
vsp1_video_frame_end(pipe, &pipe->output->video);
spin_lock_irqsave(&pipe->irqlock, flags);
/* If a stop has been requested, mark the pipeline as stopped and
* return.
*/
if (pipe->state == VSP1_PIPELINE_STOPPING) {
pipe->state = VSP1_PIPELINE_STOPPED;
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);
}
/* -----------------------------------------------------------------------------
* videobuf2 Queue Operations
*/
static int
vsp1_video_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], void *alloc_ctxs[])
{
struct vsp1_video *video = vb2_get_drv_priv(vq);
const struct v4l2_pix_format_mplane *format;
struct v4l2_pix_format_mplane pix_mp;
unsigned int i;
if (fmt) {
/* Make sure the format is valid and adjust the sizeimage field
* if needed.
*/
if (!vsp1_video_format_adjust(video, &fmt->fmt.pix_mp, &pix_mp))
return -EINVAL;
format = &pix_mp;
} else {
format = &video->format;
}
*nplanes = format->num_planes;
for (i = 0; i < format->num_planes; ++i) {
sizes[i] = format->plane_fmt[i].sizeimage;
alloc_ctxs[i] = video->alloc_ctx;
}
return 0;
}
static int vsp1_video_buffer_prepare(struct vb2_buffer *vb)
{
struct vsp1_video *video = vb2_get_drv_priv(vb->vb2_queue);
struct vsp1_video_buffer *buf = to_vsp1_video_buffer(vb);
const struct v4l2_pix_format_mplane *format = &video->format;
unsigned int i;
if (vb->num_planes < format->num_planes)
return -EINVAL;
buf->video = video;
for (i = 0; i < vb->num_planes; ++i) {
buf->addr[i] = vb2_dma_contig_plane_dma_addr(vb, i);
buf->length[i] = vb2_plane_size(vb, i);
if (buf->length[i] < format->plane_fmt[i].sizeimage)
return -EINVAL;
}
return 0;
}
static void vsp1_video_buffer_queue(struct vb2_buffer *vb)
{
struct vsp1_video *video = vb2_get_drv_priv(vb->vb2_queue);
struct vsp1_pipeline *pipe = to_vsp1_pipeline(&video->video.entity);
struct vsp1_video_buffer *buf = to_vsp1_video_buffer(vb);
unsigned long flags;
bool empty;
spin_lock_irqsave(&video->irqlock, flags);
empty = list_empty(&video->irqqueue);
list_add_tail(&buf->queue, &video->irqqueue);
spin_unlock_irqrestore(&video->irqlock, flags);
if (!empty)
return;
spin_lock_irqsave(&pipe->irqlock, flags);
video->ops->queue(video, buf);
pipe->buffers_ready |= 1 << video->pipe_index;
if (vb2_is_streaming(&video->queue) &&
vsp1_pipeline_ready(pipe))
vsp1_pipeline_run(pipe);
spin_unlock_irqrestore(&pipe->irqlock, flags);
}
static void vsp1_entity_route_setup(struct vsp1_entity *source)
{
struct vsp1_entity *sink;
if (source->route == 0)
return;
sink = container_of(source->sink, struct vsp1_entity, subdev.entity);
vsp1_write(source->vsp1, source->route, sink->id);
}
static int vsp1_video_start_streaming(struct vb2_queue *vq, unsigned int count)
{
struct vsp1_video *video = vb2_get_drv_priv(vq);
struct vsp1_pipeline *pipe = to_vsp1_pipeline(&video->video.entity);
struct vsp1_entity *entity;
unsigned long flags;
int ret;
mutex_lock(&pipe->lock);
if (pipe->stream_count == pipe->num_video - 1) {
list_for_each_entry(entity, &pipe->entities, list_pipe) {
vsp1_entity_route_setup(entity);
ret = v4l2_subdev_call(&entity->subdev, video,
s_stream, 1);
if (ret < 0) {
mutex_unlock(&pipe->lock);
return ret;
}
}
}
pipe->stream_count++;
mutex_unlock(&pipe->lock);
spin_lock_irqsave(&pipe->irqlock, flags);
if (vsp1_pipeline_ready(pipe))
vsp1_pipeline_run(pipe);
spin_unlock_irqrestore(&pipe->irqlock, flags);
return 0;
}
static int vsp1_video_stop_streaming(struct vb2_queue *vq)
{
struct vsp1_video *video = vb2_get_drv_priv(vq);
struct vsp1_pipeline *pipe = to_vsp1_pipeline(&video->video.entity);
unsigned long flags;
int ret;
mutex_lock(&pipe->lock);
if (--pipe->stream_count == 0) {
/* Stop the pipeline. */
ret = vsp1_pipeline_stop(pipe);
if (ret == -ETIMEDOUT)
dev_err(video->vsp1->dev, "pipeline stop timeout\n");
}
mutex_unlock(&pipe->lock);
vsp1_pipeline_cleanup(pipe);
media_entity_pipeline_stop(&video->video.entity);
/* Remove all buffers from the IRQ queue. */
spin_lock_irqsave(&video->irqlock, flags);
INIT_LIST_HEAD(&video->irqqueue);
spin_unlock_irqrestore(&video->irqlock, flags);
return 0;
}
static struct vb2_ops vsp1_video_queue_qops = {
.queue_setup = vsp1_video_queue_setup,
.buf_prepare = vsp1_video_buffer_prepare,
.buf_queue = vsp1_video_buffer_queue,
.wait_prepare = vb2_ops_wait_prepare,
.wait_finish = vb2_ops_wait_finish,
.start_streaming = vsp1_video_start_streaming,
.stop_streaming = vsp1_video_stop_streaming,
};
/* -----------------------------------------------------------------------------
* V4L2 ioctls
*/
static int
vsp1_video_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
{
struct v4l2_fh *vfh = file->private_data;
struct vsp1_video *video = to_vsp1_video(vfh->vdev);
cap->capabilities = V4L2_CAP_DEVICE_CAPS | V4L2_CAP_STREAMING
| V4L2_CAP_VIDEO_CAPTURE_MPLANE
| V4L2_CAP_VIDEO_OUTPUT_MPLANE;
if (video->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
cap->device_caps = V4L2_CAP_VIDEO_CAPTURE_MPLANE
| V4L2_CAP_STREAMING;
else
cap->device_caps = V4L2_CAP_VIDEO_OUTPUT_MPLANE
| V4L2_CAP_STREAMING;
strlcpy(cap->driver, "vsp1", sizeof(cap->driver));
strlcpy(cap->card, video->video.name, sizeof(cap->card));
snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
dev_name(video->vsp1->dev));
return 0;
}
static int
vsp1_video_get_format(struct file *file, void *fh, struct v4l2_format *format)
{
struct v4l2_fh *vfh = file->private_data;
struct vsp1_video *video = to_vsp1_video(vfh->vdev);
if (format->type != video->queue.type)
return -EINVAL;
mutex_lock(&video->lock);
format->fmt.pix_mp = video->format;
mutex_unlock(&video->lock);
return 0;
}
static int
vsp1_video_try_format(struct file *file, void *fh, struct v4l2_format *format)
{
struct v4l2_fh *vfh = file->private_data;
struct vsp1_video *video = to_vsp1_video(vfh->vdev);
if (format->type != video->queue.type)
return -EINVAL;
return __vsp1_video_try_format(video, &format->fmt.pix_mp, NULL);
}
static int
vsp1_video_set_format(struct file *file, void *fh, struct v4l2_format *format)
{
struct v4l2_fh *vfh = file->private_data;
struct vsp1_video *video = to_vsp1_video(vfh->vdev);
const struct vsp1_format_info *info;
int ret;
if (format->type != video->queue.type)
return -EINVAL;
ret = __vsp1_video_try_format(video, &format->fmt.pix_mp, &info);
if (ret < 0)
return ret;
mutex_lock(&video->lock);
if (vb2_is_busy(&video->queue)) {
ret = -EBUSY;
goto done;
}
video->format = format->fmt.pix_mp;
video->fmtinfo = info;
done:
mutex_unlock(&video->lock);
return ret;
}
static int
vsp1_video_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
{
struct v4l2_fh *vfh = file->private_data;
struct vsp1_video *video = to_vsp1_video(vfh->vdev);
struct vsp1_pipeline *pipe;
int ret;
mutex_lock(&video->lock);
if (video->queue.owner && video->queue.owner != file->private_data)
return -EBUSY;
video->sequence = 0;
/* Start streaming on the pipeline. No link touching an entity in the
* pipeline can be activated or deactivated once streaming is started.
*
* Use the VSP1 pipeline object embedded in the first video object that
* starts streaming.
*/
pipe = video->video.entity.pipe
? to_vsp1_pipeline(&video->video.entity) : &video->pipe;
ret = media_entity_pipeline_start(&video->video.entity, &pipe->pipe);
if (ret < 0)
return ret;
/* Verify that the configured format matches the output of the connected
* subdev.
*/
ret = vsp1_video_verify_format(video);
if (ret < 0)
goto err_stop;
ret = vsp1_pipeline_init(pipe, video);
if (ret < 0)
goto err_stop;
/* Start the queue. */
ret = vb2_streamon(&video->queue, type);
if (ret < 0)
goto err_cleanup;
return 0;
err_cleanup:
vsp1_pipeline_cleanup(pipe);
err_stop:
media_entity_pipeline_stop(&video->video.entity);
return ret;
}
static const struct v4l2_ioctl_ops vsp1_video_ioctl_ops = {
.vidioc_querycap = vsp1_video_querycap,
.vidioc_g_fmt_vid_cap_mplane = vsp1_video_get_format,
.vidioc_s_fmt_vid_cap_mplane = vsp1_video_set_format,
.vidioc_try_fmt_vid_cap_mplane = vsp1_video_try_format,
.vidioc_g_fmt_vid_out_mplane = vsp1_video_get_format,
.vidioc_s_fmt_vid_out_mplane = vsp1_video_set_format,
.vidioc_try_fmt_vid_out_mplane = vsp1_video_try_format,
.vidioc_reqbufs = vb2_ioctl_reqbufs,
.vidioc_querybuf = vb2_ioctl_querybuf,
.vidioc_qbuf = vb2_ioctl_qbuf,
.vidioc_dqbuf = vb2_ioctl_dqbuf,
.vidioc_create_bufs = vb2_ioctl_create_bufs,
.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
.vidioc_streamon = vsp1_video_streamon,
.vidioc_streamoff = vb2_ioctl_streamoff,
};
/* -----------------------------------------------------------------------------
* V4L2 File Operations
*/
static int vsp1_video_open(struct file *file)
{
struct vsp1_video *video = video_drvdata(file);
struct v4l2_fh *vfh;
int ret = 0;
vfh = kzalloc(sizeof(*vfh), GFP_KERNEL);
if (vfh == NULL)
return -ENOMEM;
v4l2_fh_init(vfh, &video->video);
v4l2_fh_add(vfh);
file->private_data = vfh;
if (!vsp1_device_get(video->vsp1)) {
ret = -EBUSY;
v4l2_fh_del(vfh);
kfree(vfh);
}
return ret;
}
static int vsp1_video_release(struct file *file)
{
struct vsp1_video *video = video_drvdata(file);
struct v4l2_fh *vfh = file->private_data;
mutex_lock(&video->lock);
if (video->queue.owner == vfh) {
vb2_queue_release(&video->queue);
video->queue.owner = NULL;
}
mutex_unlock(&video->lock);
vsp1_device_put(video->vsp1);
v4l2_fh_release(file);
file->private_data = NULL;
return 0;
}
static struct v4l2_file_operations vsp1_video_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = video_ioctl2,
.open = vsp1_video_open,
.release = vsp1_video_release,
.poll = vb2_fop_poll,
.mmap = vb2_fop_mmap,
};
/* -----------------------------------------------------------------------------
* Initialization and Cleanup
*/
int vsp1_video_init(struct vsp1_video *video, struct vsp1_entity *rwpf)
{
const char *direction;
int ret;
switch (video->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
direction = "output";
video->pad.flags = MEDIA_PAD_FL_SINK;
break;
case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
direction = "input";
video->pad.flags = MEDIA_PAD_FL_SOURCE;
video->video.vfl_dir = VFL_DIR_TX;
break;
default:
return -EINVAL;
}
video->rwpf = rwpf;
mutex_init(&video->lock);
spin_lock_init(&video->irqlock);
INIT_LIST_HEAD(&video->irqqueue);
mutex_init(&video->pipe.lock);
spin_lock_init(&video->pipe.irqlock);
INIT_LIST_HEAD(&video->pipe.entities);
init_waitqueue_head(&video->pipe.wq);
video->pipe.state = VSP1_PIPELINE_STOPPED;
/* Initialize the media entity... */
ret = media_entity_init(&video->video.entity, 1, &video->pad, 0);
if (ret < 0)
return ret;
/* ... and the format ... */
video->fmtinfo = vsp1_get_format_info(VSP1_VIDEO_DEF_FORMAT);
video->format.pixelformat = video->fmtinfo->fourcc;
video->format.colorspace = V4L2_COLORSPACE_SRGB;
video->format.field = V4L2_FIELD_NONE;
video->format.width = VSP1_VIDEO_DEF_WIDTH;
video->format.height = VSP1_VIDEO_DEF_HEIGHT;
video->format.num_planes = 1;
video->format.plane_fmt[0].bytesperline =
video->format.width * video->fmtinfo->bpp[0] / 8;
video->format.plane_fmt[0].sizeimage =
video->format.plane_fmt[0].bytesperline * video->format.height;
/* ... and the video node... */
video->video.v4l2_dev = &video->vsp1->v4l2_dev;
video->video.fops = &vsp1_video_fops;
snprintf(video->video.name, sizeof(video->video.name), "%s %s",
rwpf->subdev.name, direction);
video->video.vfl_type = VFL_TYPE_GRABBER;
video->video.release = video_device_release_empty;
video->video.ioctl_ops = &vsp1_video_ioctl_ops;
video_set_drvdata(&video->video, video);
/* ... and the buffers queue... */
video->alloc_ctx = vb2_dma_contig_init_ctx(video->vsp1->dev);
if (IS_ERR(video->alloc_ctx))
goto error;
video->queue.type = video->type;
video->queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
video->queue.lock = &video->lock;
video->queue.drv_priv = video;
video->queue.buf_struct_size = sizeof(struct vsp1_video_buffer);
video->queue.ops = &vsp1_video_queue_qops;
video->queue.mem_ops = &vb2_dma_contig_memops;
video->queue.timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
ret = vb2_queue_init(&video->queue);
if (ret < 0) {
dev_err(video->vsp1->dev, "failed to initialize vb2 queue\n");
goto error;
}
/* ... and register the video device. */
video->video.queue = &video->queue;
ret = video_register_device(&video->video, VFL_TYPE_GRABBER, -1);
if (ret < 0) {
dev_err(video->vsp1->dev, "failed to register video device\n");
goto error;
}
return 0;
error:
vb2_dma_contig_cleanup_ctx(video->alloc_ctx);
vsp1_video_cleanup(video);
return ret;
}
void vsp1_video_cleanup(struct vsp1_video *video)
{
if (video_is_registered(&video->video))
video_unregister_device(&video->video);
vb2_dma_contig_cleanup_ctx(video->alloc_ctx);
media_entity_cleanup(&video->video.entity);
}
drivers/media/platform/vsp1/vsp1_video.h 0 → 100644
View file @ 26e0ca22
/*
* vsp1_video.h -- R-Car VSP1 Video Node
*
* Copyright (C) 2013 Renesas 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_VIDEO_H__
#define __VSP1_VIDEO_H__
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include <media/media-entity.h>
#include <media/videobuf2-core.h>
struct vsp1_video;
/*
* struct vsp1_format_info - VSP1 video format description
* @mbus: media bus format code
* @fourcc: V4L2 pixel format FCC identifier
* @planes: number of planes
* @bpp: bits per pixel
* @hwfmt: VSP1 hardware format
* @swap_yc: the Y and C components are swapped (Y comes before C)
* @swap_uv: the U and V components are swapped (V comes before U)
* @hsub: horizontal subsampling factor
* @vsub: vertical subsampling factor
*/
struct vsp1_format_info {
u32 fourcc;
unsigned int mbus;
unsigned int hwfmt;
unsigned int swap;
unsigned int planes;
unsigned int bpp[3];
bool swap_yc;
bool swap_uv;
unsigned int hsub;
unsigned int vsub;
};
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;
struct mutex lock;
unsigned int use_count;
unsigned int stream_count;
unsigned int buffers_ready;
unsigned int num_video;
unsigned int num_inputs;
struct vsp1_rwpf *inputs[VPS1_MAX_RPF];
struct vsp1_rwpf *output;
struct vsp1_entity *lif;
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_video_buffer {
struct vsp1_video *video;
struct vb2_buffer buf;
struct list_head queue;
dma_addr_t addr[3];
unsigned int length[3];
};
static inline struct vsp1_video_buffer *
to_vsp1_video_buffer(struct vb2_buffer *vb)
{
return container_of(vb, struct vsp1_video_buffer, buf);
}
struct vsp1_video_operations {
void (*queue)(struct vsp1_video *video, struct vsp1_video_buffer *buf);
};
struct vsp1_video {
struct vsp1_device *vsp1;
struct vsp1_entity *rwpf;
const struct vsp1_video_operations *ops;
struct video_device video;
enum v4l2_buf_type type;
struct media_pad pad;
struct mutex lock;
struct v4l2_pix_format_mplane format;
const struct vsp1_format_info *fmtinfo;
struct vsp1_pipeline pipe;
unsigned int pipe_index;
struct vb2_queue queue;
void *alloc_ctx;
spinlock_t irqlock;
struct list_head irqqueue;
unsigned int sequence;
};
static inline struct vsp1_video *to_vsp1_video(struct video_device *vdev)
{
return container_of(vdev, struct vsp1_video, video);
}
int vsp1_video_init(struct vsp1_video *video, struct vsp1_entity *rwpf);
void vsp1_video_cleanup(struct vsp1_video *video);
void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe);
#endif /* __VSP1_VIDEO_H__ */
drivers/media/platform/vsp1/vsp1_wpf.c 0 → 100644
View file @ 26e0ca22
/*
* vsp1_wpf.c -- R-Car VSP1 Write Pixel Formatter
*
* Copyright (C) 2013 Renesas 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/device.h>
#include <media/v4l2-subdev.h>
#include "vsp1.h"
#include "vsp1_rwpf.h"
#include "vsp1_video.h"
#define WPF_MAX_WIDTH 2048
#define WPF_MAX_HEIGHT 2048
/* -----------------------------------------------------------------------------
* Device Access
*/
static inline u32 vsp1_wpf_read(struct vsp1_rwpf *wpf, u32 reg)
{
return vsp1_read(wpf->entity.vsp1,
reg + wpf->entity.index * VI6_WPF_OFFSET);
}
static inline void vsp1_wpf_write(struct vsp1_rwpf *wpf, u32 reg, u32 data)
{
vsp1_write(wpf->entity.vsp1,
reg + wpf->entity.index * VI6_WPF_OFFSET, data);
}
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Core Operations
*/
static int wpf_s_stream(struct v4l2_subdev *subdev, int enable)
{
struct vsp1_rwpf *wpf = to_rwpf(subdev);
struct vsp1_pipeline *pipe =
to_vsp1_pipeline(&wpf->entity.subdev.entity);
struct vsp1_device *vsp1 = wpf->entity.vsp1;
const struct v4l2_mbus_framefmt *format =
&wpf->entity.formats[RWPF_PAD_SOURCE];
unsigned int i;
u32 srcrpf = 0;
u32 outfmt = 0;
if (!enable) {
vsp1_write(vsp1, VI6_WPF_IRQ_ENB(wpf->entity.index), 0);
return 0;
}
/* Sources */
for (i = 0; i < pipe->num_inputs; ++i) {
struct vsp1_rwpf *input = pipe->inputs[i];
srcrpf |= VI6_WPF_SRCRPF_RPF_ACT_MST(input->entity.index);
}
vsp1_wpf_write(wpf, VI6_WPF_SRCRPF, srcrpf);
/* Destination stride. Cropping isn't supported yet. */
if (!pipe->lif) {
struct v4l2_pix_format_mplane *format = &wpf->video.format;
vsp1_wpf_write(wpf, VI6_WPF_DSTM_STRIDE_Y,
format->plane_fmt[0].bytesperline);
if (format->num_planes > 1)
vsp1_wpf_write(wpf, VI6_WPF_DSTM_STRIDE_C,
format->plane_fmt[1].bytesperline);
}
vsp1_wpf_write(wpf, VI6_WPF_HSZCLIP,
format->width << VI6_WPF_SZCLIP_SIZE_SHIFT);
vsp1_wpf_write(wpf, VI6_WPF_VSZCLIP,
format->height << VI6_WPF_SZCLIP_SIZE_SHIFT);
/* Format */
if (!pipe->lif) {
const struct vsp1_format_info *fmtinfo = wpf->video.fmtinfo;
outfmt = fmtinfo->hwfmt << VI6_WPF_OUTFMT_WRFMT_SHIFT;
if (fmtinfo->swap_yc)
outfmt |= VI6_WPF_OUTFMT_SPYCS;
if (fmtinfo->swap_uv)
outfmt |= VI6_WPF_OUTFMT_SPUVS;
vsp1_wpf_write(wpf, VI6_WPF_DSWAP, fmtinfo->swap);
}
if (wpf->entity.formats[RWPF_PAD_SINK].code !=
wpf->entity.formats[RWPF_PAD_SOURCE].code)
outfmt |= VI6_WPF_OUTFMT_CSC;
vsp1_wpf_write(wpf, VI6_WPF_OUTFMT, outfmt);
vsp1_write(vsp1, VI6_DPR_WPF_FPORCH(wpf->entity.index),
VI6_DPR_WPF_FPORCH_FP_WPFN);
vsp1_write(vsp1, VI6_WPF_WRBCK_CTRL, 0);
/* Enable interrupts */
vsp1_write(vsp1, VI6_WPF_IRQ_STA(wpf->entity.index), 0);
vsp1_write(vsp1, VI6_WPF_IRQ_ENB(wpf->entity.index),
VI6_WFP_IRQ_ENB_FREE);
return 0;
}
/* -----------------------------------------------------------------------------
* V4L2 Subdevice Operations
*/
static struct v4l2_subdev_video_ops wpf_video_ops = {
.s_stream = wpf_s_stream,
};
static struct v4l2_subdev_pad_ops wpf_pad_ops = {
.enum_mbus_code = vsp1_rwpf_enum_mbus_code,
.enum_frame_size = vsp1_rwpf_enum_frame_size,
.get_fmt = vsp1_rwpf_get_format,
.set_fmt = vsp1_rwpf_set_format,
};
static struct v4l2_subdev_ops wpf_ops = {
.video = &wpf_video_ops,
.pad = &wpf_pad_ops,
};
/* -----------------------------------------------------------------------------
* Video Device Operations
*/
static void wpf_vdev_queue(struct vsp1_video *video,
struct vsp1_video_buffer *buf)
{
struct vsp1_rwpf *wpf = container_of(video, struct vsp1_rwpf, video);
vsp1_wpf_write(wpf, VI6_WPF_DSTM_ADDR_Y, buf->addr[0]);
if (buf->buf.num_planes > 1)
vsp1_wpf_write(wpf, VI6_WPF_DSTM_ADDR_C0, buf->addr[1]);
if (buf->buf.num_planes > 2)
vsp1_wpf_write(wpf, VI6_WPF_DSTM_ADDR_C1, buf->addr[2]);
}
static const struct vsp1_video_operations wpf_vdev_ops = {
.queue = wpf_vdev_queue,
};
/* -----------------------------------------------------------------------------
* Initialization and Cleanup
*/
struct vsp1_rwpf *vsp1_wpf_create(struct vsp1_device *vsp1, unsigned int index)
{
struct v4l2_subdev *subdev;
struct vsp1_video *video;
struct vsp1_rwpf *wpf;
unsigned int flags;
int ret;
wpf = devm_kzalloc(vsp1->dev, sizeof(*wpf), GFP_KERNEL);
if (wpf == NULL)
return ERR_PTR(-ENOMEM);
wpf->max_width = WPF_MAX_WIDTH;
wpf->max_height = WPF_MAX_HEIGHT;
wpf->entity.type = VSP1_ENTITY_WPF;
wpf->entity.index = index;
wpf->entity.id = VI6_DPR_NODE_WPF(index);
ret = vsp1_entity_init(vsp1, &wpf->entity, 2);
if (ret < 0)
return ERR_PTR(ret);
/* Initialize the V4L2 subdev. */
subdev = &wpf->entity.subdev;
v4l2_subdev_init(subdev, &wpf_ops);
subdev->entity.ops = &vsp1_media_ops;
subdev->internal_ops = &vsp1_subdev_internal_ops;
snprintf(subdev->name, sizeof(subdev->name), "%s wpf.%u",
dev_name(vsp1->dev), index);
v4l2_set_subdevdata(subdev, wpf);
subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
vsp1_entity_init_formats(subdev, NULL);
/* Initialize the video device. */
video = &wpf->video;
video->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
video->vsp1 = vsp1;
video->ops = &wpf_vdev_ops;
ret = vsp1_video_init(video, &wpf->entity);
if (ret < 0)
goto error_video;
/* Connect the video device to the WPF. All connections are immutable
* except for the WPF0 source link if a LIF is present.
*/
flags = MEDIA_LNK_FL_ENABLED;
if (!(vsp1->pdata->features & VSP1_HAS_LIF) || index != 0)
flags |= MEDIA_LNK_FL_IMMUTABLE;
ret = media_entity_create_link(&wpf->entity.subdev.entity,
RWPF_PAD_SOURCE,
&wpf->video.video.entity, 0, flags);
if (ret < 0)
goto error_link;
wpf->entity.sink = &wpf->video.video.entity;
return wpf;
error_link:
vsp1_video_cleanup(video);
error_video:
media_entity_cleanup(&wpf->entity.subdev.entity);
return ERR_PTR(ret);
}
include/linux/platform_data/vsp1.h 0 → 100644
View file @ 26e0ca22
/*
* vsp1.h -- R-Car VSP1 Platform Data
*
* Copyright (C) 2013 Renesas 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 __PLATFORM_VSP1_H__
#define __PLATFORM_VSP1_H__
#define VSP1_HAS_LIF (1 << 0)
struct vsp1_platform_data {
unsigned int features;
unsigned int rpf_count;
unsigned int uds_count;
unsigned int wpf_count;
};
#endif /* __PLATFORM_VSP1_H__ */
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