// SPDX-License-Identifier: GPL-2.0+
/*
* vsp1_drv . c - - R - Car VSP1 Driver
*
* Copyright ( C ) 2013 - 2015 Renesas Electronics Corporation
*
* Contact : Laurent Pinchart ( laurent . pinchart @ ideasonboard . com )
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
#include <linux/videodev2.h>
#include <media/rcar-fcp.h>
#include <media/v4l2-subdev.h>
#include "vsp1.h"
#include "vsp1_brx.h"
#include "vsp1_clu.h"
#include "vsp1_dl.h"
#include "vsp1_drm.h"
#include "vsp1_hgo.h"
#include "vsp1_hgt.h"
#include "vsp1_hsit.h"
#include "vsp1_iif.h"
#include "vsp1_lif.h"
#include "vsp1_lut.h"
#include "vsp1_pipe.h"
#include "vsp1_regs.h"
#include "vsp1_rwpf.h"
#include "vsp1_sru.h"
#include "vsp1_uds.h"
#include "vsp1_uif.h"
#include "vsp1_video.h"
#include "vsp1_vspx.h"
/* -----------------------------------------------------------------------------
* Interrupt Handling
*/
static irqreturn_t vsp1_irq_handler(int irq, void *data)
{
u32 mask = VI6_WPF_IRQ_STA_DFE | VI6_WPF_IRQ_STA_FRE |
VI6_WPF_IRQ_STA_UND;
struct vsp1_device *vsp1 = data;
irqreturn_t ret = IRQ_NONE;
unsigned int i;
u32 status;
for (i = 0 ; i < vsp1->info->wpf_count; ++i) {
struct vsp1_rwpf *wpf = vsp1->wpf[i];
if (wpf == NULL)
continue ;
status = vsp1_read(vsp1, VI6_WPF_IRQ_STA(i));
vsp1_write(vsp1, VI6_WPF_IRQ_STA(i), ~status & mask);
if ((status & VI6_WPF_IRQ_STA_UND) && wpf->entity.pipe) {
wpf->entity.pipe->underrun_count++;
dev_warn_ratelimited(vsp1->dev,
"Underrun occurred at WPF%u (total underruns %u)\n" ,
i, wpf->entity.pipe->underrun_count);
}
if (status & VI6_WPF_IRQ_STA_DFE) {
vsp1_pipeline_frame_end(wpf->entity.pipe);
ret = IRQ_HANDLED;
}
}
return ret;
}
/* -----------------------------------------------------------------------------
* Entities
*/
/*
* vsp1_create_sink_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 )
*
* Furthermore , the BRS can ' t be connected to histogram generators , but no
* special check is currently needed as all VSP instances that include a BRS
* have no histogram generator .
*/
static int vsp1_create_sink_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_HGO ||
source->type == VSP1_ENTITY_HGT ||
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_create_pad_link(&source->subdev.entity,
source->source_pad,
entity, pad, flags);
if (ret < 0 )
return ret;
if (flags & MEDIA_LNK_FL_ENABLED)
source->sink = sink;
}
}
return 0 ;
}
static int vsp1_uapi_create_links(struct vsp1_device *vsp1)
{
struct vsp1_entity *entity;
unsigned int i;
int ret;
list_for_each_entry(entity, &vsp1->entities, list_dev) {
if (entity->type == VSP1_ENTITY_LIF ||
entity->type == VSP1_ENTITY_RPF)
continue ;
ret = vsp1_create_sink_links(vsp1, entity);
if (ret < 0 )
return ret;
}
if (vsp1->hgo) {
ret = media_create_pad_link(&vsp1->hgo->histo.entity.subdev.entity,
HISTO_PAD_SOURCE,
&vsp1->hgo->histo.video.entity, 0 ,
MEDIA_LNK_FL_ENABLED |
MEDIA_LNK_FL_IMMUTABLE);
if (ret < 0 )
return ret;
}
if (vsp1->hgt) {
ret = media_create_pad_link(&vsp1->hgt->histo.entity.subdev.entity,
HISTO_PAD_SOURCE,
&vsp1->hgt->histo.video.entity, 0 ,
MEDIA_LNK_FL_ENABLED |
MEDIA_LNK_FL_IMMUTABLE);
if (ret < 0 )
return ret;
}
for (i = 0 ; i < vsp1->info->lif_count; ++i) {
if (!vsp1->lif[i])
continue ;
ret = media_create_pad_link(&vsp1->wpf[i]->entity.subdev.entity,
RWPF_PAD_SOURCE,
&vsp1->lif[i]->entity.subdev.entity,
LIF_PAD_SINK, 0 );
if (ret < 0 )
return ret;
}
for (i = 0 ; i < vsp1->info->rpf_count; ++i) {
struct vsp1_rwpf *rpf = vsp1->rpf[i];
ret = media_create_pad_link(&rpf->video->video.entity, 0 ,
&rpf->entity.subdev.entity,
RWPF_PAD_SINK,
MEDIA_LNK_FL_ENABLED |
MEDIA_LNK_FL_IMMUTABLE);
if (ret < 0 )
return ret;
}
for (i = 0 ; i < vsp1->info->wpf_count; ++i) {
/*
* Connect the video device to the WPF . All connections are
* immutable .
*/
struct vsp1_rwpf *wpf = vsp1->wpf[i];
ret = media_create_pad_link(&wpf->entity.subdev.entity,
RWPF_PAD_SOURCE,
&wpf->video->video.entity, 0 ,
MEDIA_LNK_FL_IMMUTABLE |
MEDIA_LNK_FL_ENABLED);
if (ret < 0 )
return ret;
}
return 0 ;
}
static void vsp1_destroy_entities(struct vsp1_device *vsp1)
{
struct vsp1_entity *entity, *_entity;
struct vsp1_video *video, *_video;
list_for_each_entry_safe(entity, _entity, &vsp1->entities, list_dev) {
list_del(&entity->list_dev);
vsp1_entity_destroy(entity);
}
list_for_each_entry_safe(video, _video, &vsp1->videos, list) {
list_del(&video->list);
vsp1_video_cleanup(video);
}
v4l2_device_unregister(&vsp1->v4l2_dev);
if (vsp1->info->uapi)
media_device_unregister(&vsp1->media_dev);
media_device_cleanup(&vsp1->media_dev);
if (!vsp1->info->uapi)
vsp1_drm_cleanup(vsp1);
}
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;
mdev->hw_revision = vsp1->version;
strscpy(mdev->model, vsp1->info->model, sizeof (mdev->model));
media_device_init(mdev);
vsp1->media_ops.link_setup = vsp1_entity_link_setup;
/*
* Don ' t perform link validation when the userspace API is disabled as
* the pipeline is configured internally by the driver in that case , and
* its configuration can thus be trusted .
*/
if (vsp1->info->uapi)
vsp1->media_ops.link_validate = v4l2_subdev_link_validate;
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_feature(vsp1, VSP1_HAS_BRS)) {
vsp1->brs = vsp1_brx_create(vsp1, VSP1_ENTITY_BRS);
if (IS_ERR(vsp1->brs)) {
ret = PTR_ERR(vsp1->brs);
goto done;
}
list_add_tail(&vsp1->brs->entity.list_dev, &vsp1->entities);
}
if (vsp1_feature(vsp1, VSP1_HAS_BRU)) {
vsp1->bru = vsp1_brx_create(vsp1, VSP1_ENTITY_BRU);
if (IS_ERR(vsp1->bru)) {
ret = PTR_ERR(vsp1->bru);
goto done;
}
list_add_tail(&vsp1->bru->entity.list_dev, &vsp1->entities);
}
if (vsp1_feature(vsp1, VSP1_HAS_CLU)) {
vsp1->clu = vsp1_clu_create(vsp1);
if (IS_ERR(vsp1->clu)) {
ret = PTR_ERR(vsp1->clu);
goto done;
}
list_add_tail(&vsp1->clu->entity.list_dev, &vsp1->entities);
}
if (vsp1_feature(vsp1, VSP1_HAS_HGO) && vsp1->info->uapi) {
vsp1->hgo = vsp1_hgo_create(vsp1);
if (IS_ERR(vsp1->hgo)) {
ret = PTR_ERR(vsp1->hgo);
goto done;
}
list_add_tail(&vsp1->hgo->histo.entity.list_dev,
&vsp1->entities);
}
if (vsp1_feature(vsp1, VSP1_HAS_HGT) && vsp1->info->uapi) {
vsp1->hgt = vsp1_hgt_create(vsp1);
if (IS_ERR(vsp1->hgt)) {
ret = PTR_ERR(vsp1->hgt);
goto done;
}
list_add_tail(&vsp1->hgt->histo.entity.list_dev,
&vsp1->entities);
}
if (vsp1_feature(vsp1, VSP1_HAS_IIF)) {
vsp1->iif = vsp1_iif_create(vsp1);
if (IS_ERR(vsp1->iif)) {
ret = PTR_ERR(vsp1->iif);
goto done;
}
list_add_tail(&vsp1->iif->entity.list_dev, &vsp1->entities);
}
if (vsp1_feature(vsp1, VSP1_HAS_HSIT)) {
vsp1->hsi = vsp1_hsit_create(vsp1, true );
if (IS_ERR(vsp1->hsi)) {
ret = PTR_ERR(vsp1->hsi);
goto done;
}
list_add_tail(&vsp1->hsi->entity.list_dev, &vsp1->entities);
vsp1->hst = vsp1_hsit_create(vsp1, false );
if (IS_ERR(vsp1->hst)) {
ret = PTR_ERR(vsp1->hst);
goto done;
}
list_add_tail(&vsp1->hst->entity.list_dev, &vsp1->entities);
}
/*
* The LIFs are only supported when used in conjunction with the DU , in
* which case the userspace API is disabled . If the userspace API is
* enabled skip the LIFs , even when present .
*/
if (!vsp1->info->uapi) {
for (i = 0 ; i < vsp1->info->lif_count; ++i) {
struct vsp1_lif *lif;
lif = vsp1_lif_create(vsp1, i);
if (IS_ERR(lif)) {
ret = PTR_ERR(lif);
goto done;
}
vsp1->lif[i] = lif;
list_add_tail(&lif->entity.list_dev, &vsp1->entities);
}
}
if (vsp1_feature(vsp1, VSP1_HAS_LUT)) {
vsp1->lut = vsp1_lut_create(vsp1);
if (IS_ERR(vsp1->lut)) {
ret = PTR_ERR(vsp1->lut);
goto done;
}
list_add_tail(&vsp1->lut->entity.list_dev, &vsp1->entities);
}
for (i = 0 ; i < vsp1->info->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);
if (vsp1->info->uapi) {
struct vsp1_video *video = vsp1_video_create(vsp1, rpf);
if (IS_ERR(video)) {
ret = PTR_ERR(video);
goto done;
}
list_add_tail(&video->list, &vsp1->videos);
}
}
if (vsp1_feature(vsp1, VSP1_HAS_SRU)) {
vsp1->sru = vsp1_sru_create(vsp1);
if (IS_ERR(vsp1->sru)) {
ret = PTR_ERR(vsp1->sru);
goto done;
}
list_add_tail(&vsp1->sru->entity.list_dev, &vsp1->entities);
}
for (i = 0 ; i < vsp1->info->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->info->uif_count; ++i) {
struct vsp1_uif *uif;
uif = vsp1_uif_create(vsp1, i);
if (IS_ERR(uif)) {
ret = PTR_ERR(uif);
goto done;
}
vsp1->uif[i] = uif;
list_add_tail(&uif->entity.list_dev, &vsp1->entities);
}
for (i = 0 ; i < vsp1->info->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);
if (vsp1->info->uapi) {
struct vsp1_video *video = vsp1_video_create(vsp1, wpf);
if (IS_ERR(video)) {
ret = PTR_ERR(video);
goto done;
}
list_add_tail(&video->list, &vsp1->videos);
}
}
/* 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;
}
/*
* Create links and register subdev nodes if the userspace API is
* enabled or initialize the DRM pipeline otherwise .
*/
if (vsp1->info->uapi) {
ret = vsp1_uapi_create_links(vsp1);
if (ret < 0 )
goto done;
ret = v4l2_device_register_subdev_nodes(&vsp1->v4l2_dev);
if (ret < 0 )
goto done;
ret = media_device_register(mdev);
} else {
if (vsp1->info->version == VI6_IP_VERSION_MODEL_VSPX_GEN4)
ret = vsp1_vspx_init(vsp1);
else
ret = vsp1_drm_init(vsp1);
}
done:
if (ret < 0 )
vsp1_destroy_entities(vsp1);
return ret;
}
int vsp1_reset_wpf(struct vsp1_device *vsp1, unsigned int index)
{
u32 version = vsp1->version & VI6_IP_VERSION_MODEL_MASK;
unsigned int timeout;
int ret = 0 ;
u32 status;
status = vsp1_read(vsp1, VI6_STATUS);
if (!(status & VI6_STATUS_SYS_ACT(index)))
return 0 ;
vsp1_write(vsp1, VI6_SRESET, VI6_SRESET_SRTS(index));
for (timeout = 10 ; timeout > 0 ; --timeout) {
status = vsp1_read(vsp1, VI6_STATUS);
if (!(status & VI6_STATUS_SYS_ACT(index)))
break ;
usleep_range(1000 , 2000 );
}
if (!timeout) {
dev_err(vsp1->dev, "failed to reset wpf.%u\n" , index);
return -ETIMEDOUT;
}
if (version == VI6_IP_VERSION_MODEL_VSPD_GEN3 ||
version == VI6_IP_VERSION_MODEL_VSPD_GEN4)
ret = rcar_fcp_soft_reset(vsp1->fcp);
return ret;
}
static int vsp1_device_init(struct vsp1_device *vsp1)
{
unsigned int i;
int ret;
/* Reset any channel that might be running. */
for (i = 0 ; i < vsp1->info->wpf_count; ++i) {
ret = vsp1_reset_wpf(vsp1, i);
if (ret < 0 )
return ret;
}
vsp1_write(vsp1, VI6_CLK_DCSWT, (8 << VI6_CLK_DCSWT_CSTPW_SHIFT) |
(8 << VI6_CLK_DCSWT_CSTRW_SHIFT));
for (i = 0 ; i < vsp1->info->rpf_count; ++i)
vsp1_write(vsp1, VI6_DPR_RPF_ROUTE(i), VI6_DPR_NODE_UNUSED);
for (i = 0 ; i < vsp1->info->uds_count; ++i)
vsp1_write(vsp1, VI6_DPR_UDS_ROUTE(i), VI6_DPR_NODE_UNUSED);
for (i = 0 ; i < vsp1->info->uif_count; ++i)
vsp1_write(vsp1, VI6_DPR_UIF_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);
if (vsp1_feature(vsp1, VSP1_HAS_BRS))
vsp1_write(vsp1, VI6_DPR_ILV_BRS_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));
vsp1_dlm_setup(vsp1);
return 0 ;
}
static void vsp1_mask_all_interrupts(struct vsp1_device *vsp1)
{
unsigned int i;
for (i = 0 ; i < vsp1->info->lif_count; ++i)
vsp1_write(vsp1, VI6_DISP_IRQ_ENB(i), 0 );
for (i = 0 ; i < vsp1->info->wpf_count; ++i)
vsp1_write(vsp1, VI6_WPF_IRQ_ENB(i), 0 );
}
/*
* vsp1_device_get - Acquire the VSP1 device
*
* Make sure the device is not suspended and initialize it if needed .
*
* Return 0 on success or a negative error code otherwise .
*/
int vsp1_device_get(struct vsp1_device *vsp1)
{
return pm_runtime_resume_and_get(vsp1->dev);
}
/*
* 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)
{
pm_runtime_put_sync(vsp1->dev);
}
/* -----------------------------------------------------------------------------
* Power Management
*/
static int __maybe_unused vsp1_pm_suspend(struct device *dev)
{
struct vsp1_device *vsp1 = dev_get_drvdata(dev);
/*
* When used as part of a display pipeline , the VSP is stopped and
* restarted explicitly by the DU .
*/
if (!vsp1->drm)
vsp1_video_suspend(vsp1);
pm_runtime_force_suspend(vsp1->dev);
return 0 ;
}
static int __maybe_unused vsp1_pm_resume(struct device *dev)
{
struct vsp1_device *vsp1 = dev_get_drvdata(dev);
pm_runtime_force_resume(vsp1->dev);
/*
* When used as part of a display pipeline , the VSP is stopped and
* restarted explicitly by the DU .
*/
if (!vsp1->drm)
vsp1_video_resume(vsp1);
return 0 ;
}
static int __maybe_unused vsp1_pm_runtime_suspend(struct device *dev)
{
struct vsp1_device *vsp1 = dev_get_drvdata(dev);
rcar_fcp_disable(vsp1->fcp);
reset_control_assert(vsp1->rstc);
return 0 ;
}
static int __maybe_unused vsp1_pm_runtime_resume(struct device *dev)
{
struct vsp1_device *vsp1 = dev_get_drvdata(dev);
int ret;
ret = reset_control_deassert(vsp1->rstc);
if (ret < 0 )
return ret;
if (vsp1->info) {
/*
* On R - Car Gen2 and RZ / G1 , vsp1 register access after deassert
* can cause lock - up . It is a special case and needs some delay
* to avoid this lock - up .
*/
if (vsp1->info->gen == 2 )
udelay(1 );
ret = vsp1_device_init(vsp1);
if (ret < 0 )
goto done;
}
ret = rcar_fcp_enable(vsp1->fcp);
done:
if (ret < 0 )
reset_control_assert(vsp1->rstc);
return ret;
}
static const struct dev_pm_ops vsp1_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(vsp1_pm_suspend, vsp1_pm_resume)
SET_RUNTIME_PM_OPS(vsp1_pm_runtime_suspend, vsp1_pm_runtime_resume, NULL)
};
/* -----------------------------------------------------------------------------
* Platform Driver
*/
static const struct vsp1_device_info vsp1_device_infos[] = {
{
.version = VI6_IP_VERSION_MODEL_VSPS_H2,
.model = "VSP1-S" ,
.gen = 2 ,
.features = VSP1_HAS_BRU | VSP1_HAS_CLU | VSP1_HAS_HGO
| VSP1_HAS_HGT | VSP1_HAS_HSIT | VSP1_HAS_LUT
| VSP1_HAS_SRU | VSP1_HAS_WPF_VFLIP,
.rpf_count = 5 ,
.uds_count = 3 ,
.wpf_count = 4 ,
.num_bru_inputs = 4 ,
.uapi = true ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPR_H2,
.model = "VSP1-R" ,
.gen = 2 ,
.features = VSP1_HAS_BRU | VSP1_HAS_HSIT | VSP1_HAS_SRU
| VSP1_HAS_WPF_VFLIP,
.rpf_count = 5 ,
.uds_count = 3 ,
.wpf_count = 4 ,
.num_bru_inputs = 4 ,
.uapi = true ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPD_GEN2,
.model = "VSP1-D" ,
.gen = 2 ,
.features = VSP1_HAS_BRU | VSP1_HAS_HGO | VSP1_HAS_HSIT
| VSP1_HAS_LUT,
.lif_count = 1 ,
.rpf_count = 4 ,
.uds_count = 1 ,
.wpf_count = 1 ,
.num_bru_inputs = 4 ,
.uapi = true ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPS_M2,
.model = "VSP1-S" ,
.gen = 2 ,
.features = VSP1_HAS_BRU | VSP1_HAS_CLU | VSP1_HAS_HGO
| VSP1_HAS_HGT | VSP1_HAS_HSIT | VSP1_HAS_LUT
| VSP1_HAS_SRU | VSP1_HAS_WPF_VFLIP,
.rpf_count = 5 ,
.uds_count = 1 ,
.wpf_count = 4 ,
.num_bru_inputs = 4 ,
.uapi = true ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPS_V2H,
.model = "VSP1V-S" ,
.gen = 2 ,
.features = VSP1_HAS_BRU | VSP1_HAS_CLU | VSP1_HAS_HSIT
| VSP1_HAS_LUT | VSP1_HAS_SRU | VSP1_HAS_WPF_VFLIP,
.rpf_count = 4 ,
.uds_count = 1 ,
.wpf_count = 4 ,
.num_bru_inputs = 4 ,
.uapi = true ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPD_V2H,
.model = "VSP1V-D" ,
.gen = 2 ,
.features = VSP1_HAS_BRU | VSP1_HAS_CLU | VSP1_HAS_HSIT
| VSP1_HAS_LUT,
.lif_count = 1 ,
.rpf_count = 4 ,
.uds_count = 1 ,
.wpf_count = 1 ,
.num_bru_inputs = 4 ,
.uapi = true ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPI_GEN3,
.model = "VSP2-I" ,
.gen = 3 ,
.features = VSP1_HAS_CLU | VSP1_HAS_HGO | VSP1_HAS_HGT
| VSP1_HAS_HSIT | VSP1_HAS_LUT | VSP1_HAS_SRU
| VSP1_HAS_WPF_HFLIP | VSP1_HAS_WPF_VFLIP,
.rpf_count = 1 ,
.uds_count = 1 ,
.wpf_count = 1 ,
.uapi = true ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPBD_GEN3,
.model = "VSP2-BD" ,
.gen = 3 ,
.features = VSP1_HAS_BRU | VSP1_HAS_WPF_VFLIP,
.rpf_count = 5 ,
.wpf_count = 1 ,
.num_bru_inputs = 5 ,
.uapi = true ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPBC_GEN3,
.model = "VSP2-BC" ,
.gen = 3 ,
.features = VSP1_HAS_BRU | VSP1_HAS_CLU | VSP1_HAS_HGO
| VSP1_HAS_LUT | VSP1_HAS_WPF_VFLIP,
.rpf_count = 5 ,
.wpf_count = 1 ,
.num_bru_inputs = 5 ,
.uapi = true ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPBS_GEN3,
.model = "VSP2-BS" ,
.gen = 3 ,
.features = VSP1_HAS_BRS | VSP1_HAS_WPF_VFLIP,
.rpf_count = 2 ,
.wpf_count = 1 ,
.uapi = true ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPD_GEN3,
.model = "VSP2-D" ,
.gen = 3 ,
.features = VSP1_HAS_BRU | VSP1_HAS_WPF_VFLIP | VSP1_HAS_EXT_DL,
.lif_count = 1 ,
.rpf_count = 5 ,
.uif_count = 1 ,
.wpf_count = 2 ,
.num_bru_inputs = 5 ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPD_V3,
.model = "VSP2-D" ,
.soc = VI6_IP_VERSION_SOC_V3H,
.gen = 3 ,
.features = VSP1_HAS_BRS | VSP1_HAS_BRU,
.lif_count = 1 ,
.rpf_count = 5 ,
.uif_count = 1 ,
.wpf_count = 1 ,
.num_bru_inputs = 5 ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPD_V3,
.model = "VSP2-D" ,
.soc = VI6_IP_VERSION_SOC_V3M,
.gen = 3 ,
.features = VSP1_HAS_BRS | VSP1_HAS_BRU | VSP1_HAS_NON_ZERO_LBA,
.lif_count = 1 ,
.rpf_count = 5 ,
.uif_count = 1 ,
.wpf_count = 1 ,
.num_bru_inputs = 5 ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPDL_GEN3,
.model = "VSP2-DL" ,
.gen = 3 ,
.features = VSP1_HAS_BRS | VSP1_HAS_BRU | VSP1_HAS_EXT_DL,
.lif_count = 2 ,
.rpf_count = 5 ,
.uif_count = 2 ,
.wpf_count = 2 ,
.num_bru_inputs = 5 ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPD_GEN4,
.model = "VSP2-D" ,
.gen = 4 ,
.features = VSP1_HAS_BRU | VSP1_HAS_EXT_DL,
.lif_count = 1 ,
.rpf_count = 5 ,
.uif_count = 2 ,
.wpf_count = 1 ,
.num_bru_inputs = 5 ,
}, {
.version = VI6_IP_VERSION_MODEL_VSPX_GEN4,
.model = "VSP2-X" ,
.gen = 4 ,
.features = VSP1_HAS_IIF,
.rpf_count = 2 ,
.wpf_count = 1 ,
},
};
static const struct vsp1_device_info rzg2l_vsp2_device_info = {
.version = VI6_IP_VERSION_MODEL_VSPD_RZG2L,
.model = "VSP2-D" ,
.soc = VI6_IP_VERSION_SOC_RZG2L,
.gen = 3 ,
.features = VSP1_HAS_BRS | VSP1_HAS_WPF_VFLIP | VSP1_HAS_EXT_DL
| VSP1_HAS_NON_ZERO_LBA,
.lif_count = 1 ,
.rpf_count = 2 ,
.wpf_count = 1 ,
};
static const struct vsp1_device_info *vsp1_lookup_info(struct vsp1_device *vsp1)
{
const struct vsp1_device_info *info;
unsigned int i;
u32 model;
u32 soc;
/*
* Try the info stored in match data first for devices that don ' t have
* a version register .
*/
info = of_device_get_match_data(vsp1->dev);
if (info) {
vsp1->version = VI6_IP_VERSION_VSP_SW | info->version | info->soc;
return info;
}
vsp1->version = vsp1_read(vsp1, VI6_IP_VERSION);
model = vsp1->version & VI6_IP_VERSION_MODEL_MASK;
soc = vsp1->version & VI6_IP_VERSION_SOC_MASK;
for (i = 0 ; i < ARRAY_SIZE(vsp1_device_infos); ++i) {
info = &vsp1_device_infos[i];
if (model == info->version && (!info->soc || soc == info->soc))
return info;
}
dev_err(vsp1->dev, "unsupported IP version 0x%08x\n" , vsp1->version);
return NULL;
}
static int vsp1_probe(struct platform_device *pdev)
{
struct vsp1_device *vsp1;
struct device_node *fcp_node;
int ret;
int irq;
vsp1 = devm_kzalloc(&pdev->dev, sizeof (*vsp1), GFP_KERNEL);
if (vsp1 == NULL)
return -ENOMEM;
vsp1->dev = &pdev->dev;
INIT_LIST_HEAD(&vsp1->entities);
INIT_LIST_HEAD(&vsp1->videos);
platform_set_drvdata(pdev, vsp1);
/* I/O and IRQ resources (clock managed by the clock PM domain). */
vsp1->mmio = devm_platform_ioremap_resource(pdev, 0 );
if (IS_ERR(vsp1->mmio))
return PTR_ERR(vsp1->mmio);
irq = platform_get_irq(pdev, 0 );
if (irq < 0 )
return irq;
vsp1->rstc = devm_reset_control_get_shared(&pdev->dev, NULL);
if (IS_ERR(vsp1->rstc))
return dev_err_probe(&pdev->dev, PTR_ERR(vsp1->rstc),
"failed to get reset control\n" );
/* FCP (optional). */
fcp_node = of_parse_phandle(pdev->dev.of_node, "renesas,fcp" , 0 );
if (fcp_node) {
vsp1->fcp = rcar_fcp_get(fcp_node);
of_node_put(fcp_node);
if (IS_ERR(vsp1->fcp)) {
dev_dbg(&pdev->dev, "FCP not found (%ld)\n" ,
PTR_ERR(vsp1->fcp));
return PTR_ERR(vsp1->fcp);
}
/*
* When the FCP is present , it handles all bus master accesses
* for the VSP and must thus be used in place of the VSP device
* to map DMA buffers .
*/
vsp1->bus_master = rcar_fcp_get_device(vsp1->fcp);
} else {
vsp1->bus_master = vsp1->dev;
}
/* Configure device parameters based on the version register. */
pm_runtime_enable(&pdev->dev);
ret = vsp1_device_get(vsp1);
if (ret < 0 )
goto done;
vsp1->info = vsp1_lookup_info(vsp1);
if (!vsp1->info) {
vsp1_device_put(vsp1);
ret = -ENXIO;
goto done;
}
dev_dbg(&pdev->dev, "IP version 0x%08x\n" , vsp1->version);
/*
* Previous use of the hardware ( e . g . by the bootloader ) could leave
* some interrupts enabled and pending .
*
* TODO : Investigate if this shouldn ' t be better handled by using the
* device reset provided by the CPG .
*/
vsp1_mask_all_interrupts(vsp1);
vsp1_device_put(vsp1);
ret = devm_request_irq(&pdev->dev, irq, vsp1_irq_handler,
IRQF_SHARED, dev_name(&pdev->dev), vsp1);
if (ret < 0 ) {
dev_err(&pdev->dev, "failed to request IRQ\n" );
goto done;
}
/* Instantiate entities. */
ret = vsp1_create_entities(vsp1);
if (ret < 0 ) {
dev_err(&pdev->dev, "failed to create entities\n" );
goto done;
}
done:
if (ret) {
pm_runtime_disable(&pdev->dev);
rcar_fcp_put(vsp1->fcp);
}
return ret;
}
static void vsp1_remove(struct platform_device *pdev)
{
struct vsp1_device *vsp1 = platform_get_drvdata(pdev);
vsp1_destroy_entities(vsp1);
rcar_fcp_put(vsp1->fcp);
pm_runtime_disable(&pdev->dev);
}
static const struct of_device_id vsp1_of_match[] = {
{ .compatible = "renesas,vsp1" },
{ .compatible = "renesas,vsp2" },
{ .compatible = "renesas,r9a07g044-vsp2" , .data = &rzg2l_vsp2_device_info },
{ },
};
MODULE_DEVICE_TABLE(of, vsp1_of_match);
static struct platform_driver vsp1_platform_driver = {
.probe = vsp1_probe,
.remove = vsp1_remove,
.driver = {
.name = "vsp1" ,
.pm = &vsp1_pm_ops,
.of_match_table = vsp1_of_match,
},
};
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" );
Messung V0.5 in Prozent C=98 H=71 G=85
¤ Dauer der Verarbeitung: 0.21 Sekunden
(vorverarbeitet am 2026-10-02)
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