semfault/linux
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
linux/drivers/media/platform/renesas/vsp1/vsp1_pipe.c
Laurent Pinchart 4be710a3f1 media: renesas: vsp1: Pass subdev state to entity operations 
To prepare for the removal of the vsp1_entity.state field, pass the
state to all entity operations that needs to access it, instead of
accessing the state from the entity inside the operation handlers. This
lowers the number of accesses to the field.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi+renesas@ideasonboard.com>
2024-06-20 01:36:48 +03:00

559 lines
19 KiB
C
Raw Permalink Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* vsp1_pipe.c -- R-Car VSP1 Pipeline
*
* Copyright (C) 2013-2015 Renesas Electronics Corporation
*
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*/
#include <linux/delay.h>
#include <linux/list.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <media/media-entity.h>
#include <media/v4l2-subdev.h>
#include "vsp1.h"
#include "vsp1_brx.h"
#include "vsp1_dl.h"
#include "vsp1_entity.h"
#include "vsp1_hgo.h"
#include "vsp1_hgt.h"
#include "vsp1_pipe.h"
#include "vsp1_rwpf.h"
#include "vsp1_uds.h"
/* -----------------------------------------------------------------------------
* Helper Functions
*/
static const struct vsp1_format_info vsp1_video_formats[] = {
{ V4L2_PIX_FMT_RGB332, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGB_332, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 8, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_ARGB444, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_ARGB_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_XRGB444, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_XRGB_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_RGBA444, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGBA_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_RGBX444, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGBX_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_ABGR444, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_ABGR_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_XBGR444, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_ABGR_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_BGRA444, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_BGRA_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_BGRX444, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_BGRA_4444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_ARGB555, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_ARGB_1555, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_XRGB555, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_XRGB_1555, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_RGBA555, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGBA_5551, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_RGBX555, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGBX_5551, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_ABGR555, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_ABGR_1555, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_XBGR555, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_ABGR_1555, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_BGRA555, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_BGRA_5551, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_BGRX555, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_BGRA_5551, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_RGB565, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGB_565, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS,
1, { 16, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_BGR24, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_BGR_888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 24, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_RGB24, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGB_888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 24, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_ABGR32, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS,
1, { 32, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_XBGR32, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS,
1, { 32, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_BGRA32, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGBA_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS,
1, { 32, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_BGRX32, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGBA_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS,
1, { 32, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_RGBA32, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGBA_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 32, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_RGBX32, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGBA_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 32, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_ARGB32, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 32, 0, 0 }, false, false, 1, 1, true },
{ V4L2_PIX_FMT_XRGB32, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 32, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_HSV24, MEDIA_BUS_FMT_AHSV8888_1X32,
VI6_FMT_RGB_888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 24, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_HSV32, MEDIA_BUS_FMT_AHSV8888_1X32,
VI6_FMT_ARGB_8888, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 32, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_RGBX1010102, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGB10_RGB10A2_A2RGB10,
VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS,
1, { 32, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_RGBA1010102, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGB10_RGB10A2_A2RGB10,
VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS,
1, { 32, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_ARGB2101010, MEDIA_BUS_FMT_ARGB8888_1X32,
VI6_FMT_RGB10_RGB10A2_A2RGB10,
VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS,
1, { 32, 0, 0 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_UYVY, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 16, 0, 0 }, false, false, 2, 1, false },
{ V4L2_PIX_FMT_VYUY, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 16, 0, 0 }, false, true, 2, 1, false },
{ V4L2_PIX_FMT_YUYV, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 16, 0, 0 }, true, false, 2, 1, false },
{ V4L2_PIX_FMT_YVYU, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
1, { 16, 0, 0 }, true, true, 2, 1, false },
{ V4L2_PIX_FMT_NV12M, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_Y_UV_420, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
2, { 8, 16, 0 }, false, false, 2, 2, false },
{ V4L2_PIX_FMT_NV21M, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_Y_UV_420, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
2, { 8, 16, 0 }, false, true, 2, 2, false },
{ V4L2_PIX_FMT_NV16M, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_Y_UV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
2, { 8, 16, 0 }, false, false, 2, 1, false },
{ V4L2_PIX_FMT_NV61M, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_Y_UV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
2, { 8, 16, 0 }, false, true, 2, 1, false },
{ V4L2_PIX_FMT_YUV420M, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_Y_U_V_420, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
3, { 8, 8, 8 }, false, false, 2, 2, false },
{ V4L2_PIX_FMT_YVU420M, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_Y_U_V_420, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
3, { 8, 8, 8 }, false, true, 2, 2, false },
{ V4L2_PIX_FMT_YUV422M, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_Y_U_V_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
3, { 8, 8, 8 }, false, false, 2, 1, false },
{ V4L2_PIX_FMT_YVU422M, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_Y_U_V_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
3, { 8, 8, 8 }, false, true, 2, 1, false },
{ V4L2_PIX_FMT_YUV444M, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_Y_U_V_444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
3, { 8, 8, 8 }, false, false, 1, 1, false },
{ V4L2_PIX_FMT_YVU444M, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_Y_U_V_444, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS |
VI6_RPF_DSWAP_P_WDS | VI6_RPF_DSWAP_P_BTS,
3, { 8, 8, 8 }, false, true, 1, 1, false },
{ V4L2_PIX_FMT_Y210, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS,
1, { 32, 0, 0 }, false, false, 2, 1, false },
{ V4L2_PIX_FMT_Y212, MEDIA_BUS_FMT_AYUV8_1X32,
VI6_FMT_YUYV_422, VI6_RPF_DSWAP_P_LLS | VI6_RPF_DSWAP_P_LWS,
1, { 32, 0, 0 }, false, false, 2, 1, false },
};
/**
* vsp1_get_format_info - Retrieve format information for a 4CC
* @vsp1: the VSP1 device
* @fourcc: the format 4CC
*
* Return a pointer to the format information structure corresponding to the
* given V4L2 format 4CC, or NULL if no corresponding format can be found.
*/
const struct vsp1_format_info *vsp1_get_format_info(struct vsp1_device *vsp1,
u32 fourcc)
{
unsigned int i;
/* Special case, the VYUY and HSV formats are supported on Gen2 only. */
if (vsp1->info->gen != 2) {
switch (fourcc) {
case V4L2_PIX_FMT_VYUY:
case V4L2_PIX_FMT_HSV24:
case V4L2_PIX_FMT_HSV32:
return NULL;
}
}
for (i = 0; i < ARRAY_SIZE(vsp1_video_formats); ++i) {
const struct vsp1_format_info *info = &vsp1_video_formats[i];
if (info->fourcc == fourcc)
return info;
}
return NULL;
}
/* -----------------------------------------------------------------------------
* Pipeline Management
*/
void vsp1_pipeline_reset(struct vsp1_pipeline *pipe)
{
struct vsp1_entity *entity;
unsigned int i;
if (pipe->brx) {
struct vsp1_brx *brx = to_brx(&pipe->brx->subdev);
for (i = 0; i < ARRAY_SIZE(brx->inputs); ++i)
brx->inputs[i].rpf = NULL;
}
for (i = 0; i < ARRAY_SIZE(pipe->inputs); ++i)
pipe->inputs[i] = NULL;
pipe->output = NULL;
list_for_each_entry(entity, &pipe->entities, list_pipe)
entity->pipe = NULL;
INIT_LIST_HEAD(&pipe->entities);
pipe->state = VSP1_PIPELINE_STOPPED;
pipe->buffers_ready = 0;
pipe->num_inputs = 0;
pipe->brx = NULL;
pipe->hgo = NULL;
pipe->hgt = NULL;
pipe->lif = NULL;
pipe->uds = NULL;
}
void vsp1_pipeline_init(struct vsp1_pipeline *pipe)
{
mutex_init(&pipe->lock);
spin_lock_init(&pipe->irqlock);
init_waitqueue_head(&pipe->wq);
kref_init(&pipe->kref);
INIT_LIST_HEAD(&pipe->entities);
pipe->state = VSP1_PIPELINE_STOPPED;
}
void __vsp1_pipeline_dump(struct _ddebug *dbg, struct vsp1_pipeline *pipe,
const char *msg)
{
struct vsp1_device *vsp1 = pipe->output->entity.vsp1;
struct vsp1_entity *entity;
bool first = true;
printk(KERN_DEBUG "%s: %s: pipe: ", dev_name(vsp1->dev), msg);
list_for_each_entry(entity, &pipe->entities, list_pipe) {
const char *name;
name = strchrnul(entity->subdev.name, ' ');
name = name ? name + 1 : entity->subdev.name;
pr_cont("%s%s", first ? "" : ", ", name);
first = false;
}
pr_cont("\n");
}
/* Must be called with the pipe irqlock held. */
void vsp1_pipeline_run(struct vsp1_pipeline *pipe)
{
struct vsp1_device *vsp1 = pipe->output->entity.vsp1;
if (pipe->state == VSP1_PIPELINE_STOPPED) {
vsp1_write(vsp1, VI6_CMD(pipe->output->entity.index),
VI6_CMD_STRCMD);
pipe->state = VSP1_PIPELINE_RUNNING;
}
pipe->buffers_ready = 0;
}
bool vsp1_pipeline_stopped(struct vsp1_pipeline *pipe)
{
unsigned long flags;
bool stopped;
spin_lock_irqsave(&pipe->irqlock, flags);
stopped = pipe->state == VSP1_PIPELINE_STOPPED;
spin_unlock_irqrestore(&pipe->irqlock, flags);
return stopped;
}
int vsp1_pipeline_stop(struct vsp1_pipeline *pipe)
{
struct vsp1_device *vsp1 = pipe->output->entity.vsp1;
struct vsp1_entity *entity;
unsigned long flags;
int ret;
if (pipe->lif) {
/*
* When using display lists in continuous frame mode the only
* way to stop the pipeline is to reset the hardware.
*/
ret = vsp1_reset_wpf(vsp1, pipe->output->entity.index);
if (ret == 0) {
spin_lock_irqsave(&pipe->irqlock, flags);
pipe->state = VSP1_PIPELINE_STOPPED;
spin_unlock_irqrestore(&pipe->irqlock, flags);
}
} else {
/* Otherwise just request a stop and wait. */
spin_lock_irqsave(&pipe->irqlock, flags);
if (pipe->state == VSP1_PIPELINE_RUNNING)
pipe->state = VSP1_PIPELINE_STOPPING;
spin_unlock_irqrestore(&pipe->irqlock, flags);
ret = wait_event_timeout(pipe->wq, vsp1_pipeline_stopped(pipe),
msecs_to_jiffies(500));
ret = ret == 0 ? -ETIMEDOUT : 0;
}
list_for_each_entry(entity, &pipe->entities, list_pipe) {
if (entity->route && entity->route->reg)
vsp1_write(vsp1, entity->route->reg,
VI6_DPR_NODE_UNUSED);
}
if (pipe->hgo)
vsp1_write(vsp1, VI6_DPR_HGO_SMPPT,
(7 << VI6_DPR_SMPPT_TGW_SHIFT) |
(VI6_DPR_NODE_UNUSED << VI6_DPR_SMPPT_PT_SHIFT));
if (pipe->hgt)
vsp1_write(vsp1, VI6_DPR_HGT_SMPPT,
(7 << VI6_DPR_SMPPT_TGW_SHIFT) |
(VI6_DPR_NODE_UNUSED << VI6_DPR_SMPPT_PT_SHIFT));
vsp1_wpf_stop(pipe->output);
return ret;
}
bool vsp1_pipeline_ready(struct vsp1_pipeline *pipe)
{
unsigned int mask;
mask = ((1 << pipe->num_inputs) - 1) << 1;
if (!pipe->lif)
mask |= 1 << 0;
return pipe->buffers_ready == mask;
}
void vsp1_pipeline_frame_end(struct vsp1_pipeline *pipe)
{
unsigned int flags;
if (pipe == NULL)
return;
/*
* If the DL commit raced with the frame end interrupt, the commit ends
* up being postponed by one frame. The returned flags tell whether the
* active frame was finished or postponed.
*/
flags = vsp1_dlm_irq_frame_end(pipe->output->dlm);
if (pipe->hgo)
vsp1_hgo_frame_end(pipe->hgo);
if (pipe->hgt)
vsp1_hgt_frame_end(pipe->hgt);
/*
* Regardless of frame completion we still need to notify the pipe
* frame_end to account for vblank events.
*/
if (pipe->frame_end)
pipe->frame_end(pipe, flags);
pipe->sequence++;
}
/*
* Propagate the alpha value through the pipeline.
*
* As the UDS has restricted scaling capabilities when the alpha component needs
* to be scaled, we disable alpha scaling when the UDS input has a fixed alpha
* value. The UDS then outputs a fixed alpha value which needs to be programmed
* from the input RPF alpha.
*/
void vsp1_pipeline_propagate_alpha(struct vsp1_pipeline *pipe,
struct vsp1_dl_body *dlb, unsigned int alpha)
{
if (!pipe->uds)
return;
/*
* The BRU and BRS background color has a fixed alpha value set to 255,
* the output alpha value is thus always equal to 255.
*/
if (pipe->uds_input->type == VSP1_ENTITY_BRU ||
pipe->uds_input->type == VSP1_ENTITY_BRS)
alpha = 255;
vsp1_uds_set_alpha(pipe->uds, dlb, alpha);
}
/* -----------------------------------------------------------------------------
* VSP1 Partition Algorithm support
*/
/*
* Propagate the partition calculations through the pipeline
*
* Work backwards through the pipe, allowing each entity to update the partition
* parameters based on its configuration, and the entity connected to its
* source. Each entity must produce the partition required for the previous
* entity in the pipeline.
*/
static void vsp1_pipeline_propagate_partition(struct vsp1_pipeline *pipe,
struct vsp1_partition *partition,
unsigned int index,
struct v4l2_rect *window)
{
struct vsp1_entity *entity;
list_for_each_entry_reverse(entity, &pipe->entities, list_pipe) {
if (entity->ops->partition)
entity->ops->partition(entity, entity->state, pipe,
partition, index, window);
}
}
/*
* vsp1_pipeline_calculate_partition - Calculate pipeline configuration for a
* partition
*
* @pipe: the pipeline
* @partition: partition that will hold the calculated values
* @div_size: pre-determined maximum partition division size
* @index: partition index
*/
void vsp1_pipeline_calculate_partition(struct vsp1_pipeline *pipe,
struct vsp1_partition *partition,
unsigned int div_size,
unsigned int index)
{
const struct v4l2_mbus_framefmt *format;
struct v4l2_rect window;
unsigned int modulus;
/*
* Partitions are computed on the size before rotation, use the format
* at the WPF sink.
*/
format = v4l2_subdev_state_get_format(pipe->output->entity.state,
RWPF_PAD_SINK);
/* Initialise the partition with sane starting conditions. */
window.left = index * div_size;
window.width = div_size;
window.top = 0;
window.height = format->height;
modulus = format->width % div_size;
/*
* We need to prevent the last partition from being smaller than the
* *minimum* width of the hardware capabilities.
*
* If the modulus is less than half of the partition size,
* the penultimate partition is reduced to half, which is added
* to the final partition: |1234|1234|1234|12|341|
* to prevent this: |1234|1234|1234|1234|1|.
*/
if (modulus) {
/*
* pipe->partitions is 1 based, whilst index is a 0 based index.
* Normalise this locally.
*/
unsigned int partitions = pipe->partitions - 1;
if (modulus < div_size / 2) {
if (index == partitions - 1) {
/* Halve the penultimate partition. */
window.width = div_size / 2;
} else if (index == partitions) {
/* Increase the final partition. */
window.width = (div_size / 2) + modulus;
window.left -= div_size / 2;
}
} else if (index == partitions) {
window.width = modulus;
}
}
vsp1_pipeline_propagate_partition(pipe, partition, index, &window);
}
Reference in a new issue View git blame Copy permalink