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path: root/drivers/media/platform/vsp1/vsp1_rpf.c
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Diffstat (limited to 'drivers/media/platform/vsp1/vsp1_rpf.c')
-rw-r--r--drivers/media/platform/vsp1/vsp1_rpf.c382
1 files changed, 0 insertions, 382 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_rpf.c b/drivers/media/platform/vsp1/vsp1_rpf.c
deleted file mode 100644
index 85587c1b6a37..000000000000
--- a/drivers/media/platform/vsp1/vsp1_rpf.c
+++ /dev/null
@@ -1,382 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * vsp1_rpf.c -- R-Car VSP1 Read Pixel Formatter
- *
- * Copyright (C) 2013-2014 Renesas Electronics Corporation
- *
- * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- */
-
-#include <linux/device.h>
-
-#include <media/v4l2-subdev.h>
-
-#include "vsp1.h"
-#include "vsp1_dl.h"
-#include "vsp1_pipe.h"
-#include "vsp1_rwpf.h"
-#include "vsp1_video.h"
-
-#define RPF_MAX_WIDTH 8190
-#define RPF_MAX_HEIGHT 8190
-
-/* Pre extended display list command data structure. */
-struct vsp1_extcmd_auto_fld_body {
- u32 top_y0;
- u32 bottom_y0;
- u32 top_c0;
- u32 bottom_c0;
- u32 top_c1;
- u32 bottom_c1;
- u32 reserved0;
- u32 reserved1;
-} __packed;
-
-/* -----------------------------------------------------------------------------
- * Device Access
- */
-
-static inline void vsp1_rpf_write(struct vsp1_rwpf *rpf,
- struct vsp1_dl_body *dlb, u32 reg, u32 data)
-{
- vsp1_dl_body_write(dlb, reg + rpf->entity.index * VI6_RPF_OFFSET,
- data);
-}
-
-/* -----------------------------------------------------------------------------
- * V4L2 Subdevice Operations
- */
-
-static const struct v4l2_subdev_ops rpf_ops = {
- .pad = &vsp1_rwpf_pad_ops,
-};
-
-/* -----------------------------------------------------------------------------
- * VSP1 Entity Operations
- */
-
-static void rpf_configure_stream(struct vsp1_entity *entity,
- struct vsp1_pipeline *pipe,
- struct vsp1_dl_list *dl,
- struct vsp1_dl_body *dlb)
-{
- struct vsp1_rwpf *rpf = to_rwpf(&entity->subdev);
- const struct vsp1_format_info *fmtinfo = rpf->fmtinfo;
- const struct v4l2_pix_format_mplane *format = &rpf->format;
- const struct v4l2_mbus_framefmt *source_format;
- const struct v4l2_mbus_framefmt *sink_format;
- unsigned int left = 0;
- unsigned int top = 0;
- u32 pstride;
- u32 infmt;
-
- /* Stride */
- 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;
-
- /*
- * pstride has both STRIDE_Y and STRIDE_C, but multiplying the whole
- * of pstride by 2 is conveniently OK here as we are multiplying both
- * values.
- */
- if (pipe->interlaced)
- pstride *= 2;
-
- vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_PSTRIDE, pstride);
-
- /* Format */
- sink_format = vsp1_entity_get_pad_format(&rpf->entity,
- rpf->entity.config,
- RWPF_PAD_SINK);
- source_format = vsp1_entity_get_pad_format(&rpf->entity,
- rpf->entity.config,
- RWPF_PAD_SOURCE);
-
- 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 (sink_format->code != source_format->code)
- infmt |= VI6_RPF_INFMT_CSC;
-
- vsp1_rpf_write(rpf, dlb, VI6_RPF_INFMT, infmt);
- vsp1_rpf_write(rpf, dlb, VI6_RPF_DSWAP, fmtinfo->swap);
-
- /* Output location. */
- if (pipe->brx) {
- const struct v4l2_rect *compose;
-
- compose = vsp1_entity_get_pad_selection(pipe->brx,
- pipe->brx->config,
- rpf->brx_input,
- V4L2_SEL_TGT_COMPOSE);
- left = compose->left;
- top = compose->top;
- }
-
- if (pipe->interlaced)
- top /= 2;
-
- vsp1_rpf_write(rpf, dlb, VI6_RPF_LOC,
- (left << VI6_RPF_LOC_HCOORD_SHIFT) |
- (top << VI6_RPF_LOC_VCOORD_SHIFT));
-
- /*
- * On Gen2 use the alpha channel (extended to 8 bits) when available or
- * a fixed alpha value set through the V4L2_CID_ALPHA_COMPONENT control
- * otherwise.
- *
- * The Gen3 RPF has extended alpha capability and can both multiply the
- * alpha channel by a fixed global alpha value, and multiply the pixel
- * components to convert the input to premultiplied alpha.
- *
- * As alpha premultiplication is available in the BRx for both Gen2 and
- * Gen3 we handle it there and use the Gen3 alpha multiplier for global
- * alpha multiplication only. This however prevents conversion to
- * premultiplied alpha if no BRx is present in the pipeline. If that use
- * case turns out to be useful we will revisit the implementation (for
- * Gen3 only).
- *
- * We enable alpha multiplication on Gen3 using the fixed alpha value
- * set through the V4L2_CID_ALPHA_COMPONENT control when the input
- * contains an alpha channel. On Gen2 the global alpha is ignored in
- * that case.
- *
- * In all cases, disable color keying.
- */
- vsp1_rpf_write(rpf, dlb, VI6_RPF_ALPH_SEL, VI6_RPF_ALPH_SEL_AEXT_EXT |
- (fmtinfo->alpha ? VI6_RPF_ALPH_SEL_ASEL_PACKED
- : VI6_RPF_ALPH_SEL_ASEL_FIXED));
-
- if (entity->vsp1->info->gen == 3) {
- u32 mult;
-
- if (fmtinfo->alpha) {
- /*
- * When the input contains an alpha channel enable the
- * alpha multiplier. If the input is premultiplied we
- * need to multiply both the alpha channel and the pixel
- * components by the global alpha value to keep them
- * premultiplied. Otherwise multiply the alpha channel
- * only.
- */
- bool premultiplied = format->flags
- & V4L2_PIX_FMT_FLAG_PREMUL_ALPHA;
-
- mult = VI6_RPF_MULT_ALPHA_A_MMD_RATIO
- | (premultiplied ?
- VI6_RPF_MULT_ALPHA_P_MMD_RATIO :
- VI6_RPF_MULT_ALPHA_P_MMD_NONE);
- } else {
- /*
- * When the input doesn't contain an alpha channel the
- * global alpha value is applied in the unpacking unit,
- * the alpha multiplier isn't needed and must be
- * disabled.
- */
- mult = VI6_RPF_MULT_ALPHA_A_MMD_NONE
- | VI6_RPF_MULT_ALPHA_P_MMD_NONE;
- }
-
- rpf->mult_alpha = mult;
- }
-
- vsp1_rpf_write(rpf, dlb, VI6_RPF_MSK_CTRL, 0);
- vsp1_rpf_write(rpf, dlb, VI6_RPF_CKEY_CTRL, 0);
-
-}
-
-static void vsp1_rpf_configure_autofld(struct vsp1_rwpf *rpf,
- struct vsp1_dl_list *dl)
-{
- const struct v4l2_pix_format_mplane *format = &rpf->format;
- struct vsp1_dl_ext_cmd *cmd;
- struct vsp1_extcmd_auto_fld_body *auto_fld;
- u32 offset_y, offset_c;
-
- cmd = vsp1_dl_get_pre_cmd(dl);
- if (WARN_ONCE(!cmd, "Failed to obtain an autofld cmd"))
- return;
-
- /* Re-index our auto_fld to match the current RPF. */
- auto_fld = cmd->data;
- auto_fld = &auto_fld[rpf->entity.index];
-
- auto_fld->top_y0 = rpf->mem.addr[0];
- auto_fld->top_c0 = rpf->mem.addr[1];
- auto_fld->top_c1 = rpf->mem.addr[2];
-
- offset_y = format->plane_fmt[0].bytesperline;
- offset_c = format->plane_fmt[1].bytesperline;
-
- auto_fld->bottom_y0 = rpf->mem.addr[0] + offset_y;
- auto_fld->bottom_c0 = rpf->mem.addr[1] + offset_c;
- auto_fld->bottom_c1 = rpf->mem.addr[2] + offset_c;
-
- cmd->flags |= VI6_DL_EXT_AUTOFLD_INT | BIT(16 + rpf->entity.index);
-}
-
-static void rpf_configure_frame(struct vsp1_entity *entity,
- struct vsp1_pipeline *pipe,
- struct vsp1_dl_list *dl,
- struct vsp1_dl_body *dlb)
-{
- struct vsp1_rwpf *rpf = to_rwpf(&entity->subdev);
-
- vsp1_rpf_write(rpf, dlb, VI6_RPF_VRTCOL_SET,
- rpf->alpha << VI6_RPF_VRTCOL_SET_LAYA_SHIFT);
- vsp1_rpf_write(rpf, dlb, VI6_RPF_MULT_ALPHA, rpf->mult_alpha |
- (rpf->alpha << VI6_RPF_MULT_ALPHA_RATIO_SHIFT));
-
- vsp1_pipeline_propagate_alpha(pipe, dlb, rpf->alpha);
-}
-
-static void rpf_configure_partition(struct vsp1_entity *entity,
- struct vsp1_pipeline *pipe,
- struct vsp1_dl_list *dl,
- struct vsp1_dl_body *dlb)
-{
- struct vsp1_rwpf *rpf = to_rwpf(&entity->subdev);
- struct vsp1_rwpf_memory mem = rpf->mem;
- struct vsp1_device *vsp1 = rpf->entity.vsp1;
- const struct vsp1_format_info *fmtinfo = rpf->fmtinfo;
- const struct v4l2_pix_format_mplane *format = &rpf->format;
- struct v4l2_rect crop;
-
- /*
- * Source size and crop offsets.
- *
- * The crop offsets correspond to the location of the crop
- * rectangle top left corner in the plane buffer. Only two
- * offsets are needed, as planes 2 and 3 always have identical
- * strides.
- */
- crop = *vsp1_rwpf_get_crop(rpf, rpf->entity.config);
-
- /*
- * Partition Algorithm Control
- *
- * The partition algorithm can split this frame into multiple
- * slices. We must scale our partition window based on the pipe
- * configuration to match the destination partition window.
- * To achieve this, we adjust our crop to provide a 'sub-crop'
- * matching the expected partition window. Only 'left' and
- * 'width' need to be adjusted.
- */
- if (pipe->partitions > 1) {
- crop.width = pipe->partition->rpf.width;
- crop.left += pipe->partition->rpf.left;
- }
-
- if (pipe->interlaced) {
- crop.height = round_down(crop.height / 2, fmtinfo->vsub);
- crop.top = round_down(crop.top / 2, fmtinfo->vsub);
- }
-
- vsp1_rpf_write(rpf, dlb, VI6_RPF_SRC_BSIZE,
- (crop.width << VI6_RPF_SRC_BSIZE_BHSIZE_SHIFT) |
- (crop.height << VI6_RPF_SRC_BSIZE_BVSIZE_SHIFT));
- vsp1_rpf_write(rpf, dlb, VI6_RPF_SRC_ESIZE,
- (crop.width << VI6_RPF_SRC_ESIZE_EHSIZE_SHIFT) |
- (crop.height << VI6_RPF_SRC_ESIZE_EVSIZE_SHIFT));
-
- mem.addr[0] += crop.top * format->plane_fmt[0].bytesperline
- + crop.left * fmtinfo->bpp[0] / 8;
-
- if (format->num_planes > 1) {
- unsigned int offset;
-
- offset = crop.top * format->plane_fmt[1].bytesperline
- + crop.left / fmtinfo->hsub
- * fmtinfo->bpp[1] / 8;
- mem.addr[1] += offset;
- mem.addr[2] += offset;
- }
-
- /*
- * On Gen3 hardware the SPUVS bit has no effect on 3-planar
- * formats. Swap the U and V planes manually in that case.
- */
- if (vsp1->info->gen == 3 && format->num_planes == 3 &&
- fmtinfo->swap_uv)
- swap(mem.addr[1], mem.addr[2]);
-
- /*
- * Interlaced pipelines will use the extended pre-cmd to process
- * SRCM_ADDR_{Y,C0,C1}.
- */
- if (pipe->interlaced) {
- vsp1_rpf_configure_autofld(rpf, dl);
- } else {
- vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_Y, mem.addr[0]);
- vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_C0, mem.addr[1]);
- vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_C1, mem.addr[2]);
- }
-}
-
-static void rpf_partition(struct vsp1_entity *entity,
- struct vsp1_pipeline *pipe,
- struct vsp1_partition *partition,
- unsigned int partition_idx,
- struct vsp1_partition_window *window)
-{
- partition->rpf = *window;
-}
-
-static const struct vsp1_entity_operations rpf_entity_ops = {
- .configure_stream = rpf_configure_stream,
- .configure_frame = rpf_configure_frame,
- .configure_partition = rpf_configure_partition,
- .partition = rpf_partition,
-};
-
-/* -----------------------------------------------------------------------------
- * Initialization and Cleanup
- */
-
-struct vsp1_rwpf *vsp1_rpf_create(struct vsp1_device *vsp1, unsigned int index)
-{
- struct vsp1_rwpf *rpf;
- char name[6];
- 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.ops = &rpf_entity_ops;
- rpf->entity.type = VSP1_ENTITY_RPF;
- rpf->entity.index = index;
-
- sprintf(name, "rpf.%u", index);
- ret = vsp1_entity_init(vsp1, &rpf->entity, name, 2, &rpf_ops,
- MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER);
- if (ret < 0)
- return ERR_PTR(ret);
-
- /* Initialize the control handler. */
- ret = vsp1_rwpf_init_ctrls(rpf, 0);
- if (ret < 0) {
- dev_err(vsp1->dev, "rpf%u: failed to initialize controls\n",
- index);
- goto error;
- }
-
- v4l2_ctrl_handler_setup(&rpf->ctrls);
-
- return rpf;
-
-error:
- vsp1_entity_destroy(&rpf->entity);
- return ERR_PTR(ret);
-}
generated by cgit (git 2.34.1) at 2025-12-25 17:32:14 +0000