432 lines
9.4 KiB
C
432 lines
9.4 KiB
C
/*
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* Copyright 2017-2018 NXP
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/platform_device.h>
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#include <linux/types.h>
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#include <video/dpu.h>
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#include "dpu-prv.h"
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#define BASEADDRESS0 0x10
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#define SOURCEBUFFERATTRIBUTES0 0x14
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#define SOURCEBUFFERDIMENSION0 0x18
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#define COLORCOMPONENTBITS0 0x1C
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#define COLORCOMPONENTSHIFT0 0x20
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#define LAYEROFFSET0 0x24
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#define CLIPWINDOWOFFSET0 0x28
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#define CLIPWINDOWDIMENSIONS0 0x2C
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#define CONSTANTCOLOR0 0x30
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#define LAYERPROPERTY0 0x34
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#define FRAMEDIMENSIONS 0x38
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#define FRAMERESAMPLING 0x3C
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#define CONTROL 0x40
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#define CONTROLTRIGGER 0x44
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#define START 0x48
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#define FETCHTYPE 0x4C
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#define BURSTBUFFERPROPERTIES 0x50
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#define HIDDENSTATUS 0x54
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struct dpu_fetcheco {
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struct dpu_fetchunit fu;
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};
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static void
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fetcheco_set_src_buf_dimensions(struct dpu_fetchunit *fu,
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unsigned int w, unsigned int h,
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u32 fmt, bool deinterlace)
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{
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int width, height;
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u32 val;
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if (deinterlace) {
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width = w;
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height = h / 2;
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} else {
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width = dpu_format_plane_width(w, fmt, 1);
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height = dpu_format_plane_height(h, fmt, 1);
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}
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switch (fmt) {
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case DRM_FORMAT_NV12:
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case DRM_FORMAT_NV21:
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case DRM_FORMAT_NV16:
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case DRM_FORMAT_NV61:
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case DRM_FORMAT_NV24:
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case DRM_FORMAT_NV42:
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break;
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default:
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WARN(1, "Unsupported FetchEco pixel format 0x%08x\n", fmt);
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return;
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}
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val = LINEWIDTH(width) | LINECOUNT(height);
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mutex_lock(&fu->mutex);
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dpu_fu_write(fu, val, SOURCEBUFFERDIMENSION0);
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mutex_unlock(&fu->mutex);
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}
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static void fetcheco_set_fmt(struct dpu_fetchunit *fu, u32 fmt, bool unused)
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{
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u32 val, bits, shift;
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int i, hsub, vsub;
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unsigned int x, y;
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switch (fmt) {
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case DRM_FORMAT_NV12:
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case DRM_FORMAT_NV21:
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case DRM_FORMAT_NV16:
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case DRM_FORMAT_NV61:
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case DRM_FORMAT_NV24:
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case DRM_FORMAT_NV42:
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break;
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default:
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WARN(1, "Unsupported FetchEco pixel format 0x%08x\n", fmt);
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return;
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}
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hsub = dpu_format_horz_chroma_subsampling(fmt);
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switch (hsub) {
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case 1:
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x = 0x4;
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break;
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case 2:
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x = 0x2;
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break;
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default:
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WARN_ON(1);
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return;
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}
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vsub = dpu_format_vert_chroma_subsampling(fmt);
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switch (vsub) {
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case 1:
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y = 0x4;
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break;
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case 2:
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y = 0x2;
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break;
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default:
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WARN_ON(1);
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return;
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}
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mutex_lock(&fu->mutex);
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val = dpu_fu_read(fu, FRAMERESAMPLING);
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val &= ~(DELTAX_MASK | DELTAY_MASK);
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val |= DELTAX(x) | DELTAY(y);
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dpu_fu_write(fu, val, FRAMERESAMPLING);
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val = dpu_fu_read(fu, CONTROL);
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val &= ~RASTERMODE_MASK;
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val |= RASTERMODE(RASTERMODE__NORMAL);
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dpu_fu_write(fu, val, CONTROL);
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mutex_unlock(&fu->mutex);
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for (i = 0; i < ARRAY_SIZE(dpu_pixel_format_matrix); i++) {
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if (dpu_pixel_format_matrix[i].pixel_format == fmt) {
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bits = dpu_pixel_format_matrix[i].bits;
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shift = dpu_pixel_format_matrix[i].shift;
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bits &= ~Y_BITS_MASK;
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shift &= ~Y_SHIFT_MASK;
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mutex_lock(&fu->mutex);
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dpu_fu_write(fu, bits, COLORCOMPONENTBITS0);
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dpu_fu_write(fu, shift, COLORCOMPONENTSHIFT0);
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mutex_unlock(&fu->mutex);
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return;
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}
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}
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WARN_ON(1);
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}
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void fetcheco_layeroffset(struct dpu_fetchunit *fu, unsigned int x,
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unsigned int y)
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{
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u32 val;
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val = LAYERXOFFSET(x) | LAYERYOFFSET(y);
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mutex_lock(&fu->mutex);
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dpu_fu_write(fu, val, LAYEROFFSET0);
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mutex_unlock(&fu->mutex);
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}
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EXPORT_SYMBOL_GPL(fetcheco_layeroffset);
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void fetcheco_clipoffset(struct dpu_fetchunit *fu, unsigned int x,
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unsigned int y)
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{
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u32 val;
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val = CLIPWINDOWXOFFSET(x) | CLIPWINDOWYOFFSET(y);
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mutex_lock(&fu->mutex);
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dpu_fu_write(fu, val, CLIPWINDOWOFFSET0);
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mutex_unlock(&fu->mutex);
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}
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EXPORT_SYMBOL_GPL(fetcheco_clipoffset);
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void fetcheco_clipdimensions(struct dpu_fetchunit *fu, unsigned int w,
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unsigned int h)
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{
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u32 val;
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val = CLIPWINDOWWIDTH(w) | CLIPWINDOWHEIGHT(h);
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mutex_lock(&fu->mutex);
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dpu_fu_write(fu, val, CLIPWINDOWDIMENSIONS0);
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mutex_unlock(&fu->mutex);
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}
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EXPORT_SYMBOL_GPL(fetcheco_clipdimensions);
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static void
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fetcheco_set_framedimensions(struct dpu_fetchunit *fu,
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unsigned int w, unsigned int h,
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bool deinterlace)
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{
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u32 val;
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if (deinterlace)
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h /= 2;
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val = FRAMEWIDTH(w) | FRAMEHEIGHT(h);
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mutex_lock(&fu->mutex);
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dpu_fu_write(fu, val, FRAMEDIMENSIONS);
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mutex_unlock(&fu->mutex);
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}
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void fetcheco_frameresampling(struct dpu_fetchunit *fu, unsigned int x,
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unsigned int y)
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{
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u32 val;
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mutex_lock(&fu->mutex);
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val = dpu_fu_read(fu, FRAMERESAMPLING);
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val &= ~(DELTAX_MASK | DELTAY_MASK);
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val |= DELTAX(x) | DELTAY(y);
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dpu_fu_write(fu, val, FRAMERESAMPLING);
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mutex_unlock(&fu->mutex);
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}
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EXPORT_SYMBOL_GPL(fetcheco_frameresampling);
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static void fetcheco_set_controltrigger(struct dpu_fetchunit *fu)
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{
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mutex_lock(&fu->mutex);
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dpu_fu_write(fu, SHDTOKGEN, CONTROLTRIGGER);
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mutex_unlock(&fu->mutex);
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}
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int fetcheco_fetchtype(struct dpu_fetchunit *fu, fetchtype_t *type)
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{
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struct dpu_soc *dpu = fu->dpu;
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u32 val;
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mutex_lock(&fu->mutex);
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val = dpu_fu_read(fu, FETCHTYPE);
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val &= FETCHTYPE_MASK;
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mutex_unlock(&fu->mutex);
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switch (val) {
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case FETCHTYPE__DECODE:
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dev_dbg(dpu->dev, "FetchEco%d with RL and RLAD decoder\n",
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fu->id);
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break;
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case FETCHTYPE__LAYER:
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dev_dbg(dpu->dev, "FetchEco%d with fractional "
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"plane(8 layers)\n", fu->id);
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break;
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case FETCHTYPE__WARP:
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dev_dbg(dpu->dev, "FetchEco%d with arbitrary warping and "
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"fractional plane(8 layers)\n", fu->id);
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break;
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case FETCHTYPE__ECO:
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dev_dbg(dpu->dev, "FetchEco%d with minimum feature set for "
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"alpha, chroma and coordinate planes\n",
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fu->id);
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break;
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case FETCHTYPE__PERSP:
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dev_dbg(dpu->dev, "FetchEco%d with affine, perspective and "
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"arbitrary warping\n", fu->id);
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break;
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case FETCHTYPE__ROT:
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dev_dbg(dpu->dev, "FetchEco%d with affine and arbitrary "
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"warping\n", fu->id);
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break;
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case FETCHTYPE__DECODEL:
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dev_dbg(dpu->dev, "FetchEco%d with RL and RLAD decoder, "
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"reduced feature set\n", fu->id);
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break;
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case FETCHTYPE__LAYERL:
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dev_dbg(dpu->dev, "FetchEco%d with fractional "
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"plane(8 layers), reduced feature set\n",
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fu->id);
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break;
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case FETCHTYPE__ROTL:
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dev_dbg(dpu->dev, "FetchEco%d with affine and arbitrary "
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"warping, reduced feature set\n", fu->id);
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break;
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default:
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dev_warn(dpu->dev, "Invalid fetch type %u for FetchEco%d\n",
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val, fu->id);
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return -EINVAL;
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}
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*type = val;
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return 0;
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}
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EXPORT_SYMBOL_GPL(fetcheco_fetchtype);
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dpu_block_id_t fetcheco_get_block_id(struct dpu_fetchunit *fu)
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{
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switch (fu->id) {
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case 0:
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return ID_FETCHECO0;
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case 1:
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return ID_FETCHECO1;
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case 2:
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return ID_FETCHECO2;
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case 9:
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return ID_FETCHECO9;
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default:
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WARN_ON(1);
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}
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return ID_NONE;
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}
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EXPORT_SYMBOL_GPL(fetcheco_get_block_id);
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struct dpu_fetchunit *dpu_fe_get(struct dpu_soc *dpu, int id)
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{
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struct dpu_fetchunit *fu;
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int i;
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for (i = 0; i < ARRAY_SIZE(fe_ids); i++)
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if (fe_ids[i] == id)
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break;
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if (i == ARRAY_SIZE(fe_ids))
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return ERR_PTR(-EINVAL);
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fu = dpu->fe_priv[i];
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mutex_lock(&fu->mutex);
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if (fu->inuse) {
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fu = ERR_PTR(-EBUSY);
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goto out;
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}
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fu->inuse = true;
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out:
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mutex_unlock(&fu->mutex);
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return fu;
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}
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EXPORT_SYMBOL_GPL(dpu_fe_get);
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void dpu_fe_put(struct dpu_fetchunit *fu)
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{
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mutex_lock(&fu->mutex);
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fu->inuse = false;
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mutex_unlock(&fu->mutex);
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}
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EXPORT_SYMBOL_GPL(dpu_fe_put);
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static const struct dpu_fetchunit_ops fe_ops = {
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.set_burstlength = fetchunit_set_burstlength,
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.set_baseaddress = fetchunit_set_baseaddress,
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.set_src_bpp = fetchunit_set_src_bpp,
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.set_src_stride = fetchunit_set_src_stride,
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.set_src_buf_dimensions = fetcheco_set_src_buf_dimensions,
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.set_fmt = fetcheco_set_fmt,
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.enable_src_buf = fetchunit_enable_src_buf,
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.disable_src_buf = fetchunit_disable_src_buf,
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.is_enabled = fetchunit_is_enabled,
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.set_framedimensions = fetcheco_set_framedimensions,
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.set_controltrigger = fetcheco_set_controltrigger,
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.get_stream_id = fetchunit_get_stream_id,
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.set_stream_id = fetchunit_set_stream_id,
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.pin_off = fetchunit_pin_off,
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.unpin_off = fetchunit_unpin_off,
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.is_pinned_off = fetchunit_is_pinned_off,
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};
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void _dpu_fe_init(struct dpu_soc *dpu, unsigned int id)
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{
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struct dpu_fetchunit *fu;
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int i;
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for (i = 0; i < ARRAY_SIZE(fe_ids); i++)
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if (fe_ids[i] == id)
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break;
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if (WARN_ON(i == ARRAY_SIZE(fe_ids)))
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return;
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fu = dpu->fe_priv[i];
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fetchunit_shden(fu, true);
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mutex_lock(&fu->mutex);
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dpu_fu_write(fu, SETNUMBUFFERS(16) | SETBURSTLENGTH(16),
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BURSTBUFFERMANAGEMENT);
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mutex_unlock(&fu->mutex);
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}
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int dpu_fe_init(struct dpu_soc *dpu, unsigned int id,
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unsigned long pec_base, unsigned long base)
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{
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struct dpu_fetcheco *fe;
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struct dpu_fetchunit *fu;
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int i;
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fe = devm_kzalloc(dpu->dev, sizeof(*fe), GFP_KERNEL);
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if (!fe)
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return -ENOMEM;
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for (i = 0; i < ARRAY_SIZE(fe_ids); i++)
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if (fe_ids[i] == id)
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break;
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fu = &fe->fu;
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dpu->fe_priv[i] = fu;
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fu->pec_base = devm_ioremap(dpu->dev, pec_base, SZ_16);
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if (!fu->pec_base)
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return -ENOMEM;
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fu->base = devm_ioremap(dpu->dev, base, SZ_128);
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if (!fu->base)
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return -ENOMEM;
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fu->dpu = dpu;
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fu->id = id;
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fu->type = FU_T_FE;
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fu->ops = &fe_ops;
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fu->name = "fetcheco";
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mutex_init(&fu->mutex);
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_dpu_fe_init(dpu, id);
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return 0;
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}
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