// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) STMicroelectronics SA 2014
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* Authors: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics.
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*/
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#include <linux/debugfs.h>
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#include <linux/pm_runtime.h>
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#include "bdisp.h"
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#include "bdisp-filter.h"
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#include "bdisp-reg.h"
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void bdisp_dbg_perf_begin(struct bdisp_dev *bdisp)
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{
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bdisp->dbg.hw_start = ktime_get();
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}
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void bdisp_dbg_perf_end(struct bdisp_dev *bdisp)
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{
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s64 time_us;
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time_us = ktime_us_delta(ktime_get(), bdisp->dbg.hw_start);
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if (!bdisp->dbg.min_duration)
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bdisp->dbg.min_duration = time_us;
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else
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bdisp->dbg.min_duration = min(time_us, bdisp->dbg.min_duration);
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bdisp->dbg.last_duration = time_us;
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bdisp->dbg.max_duration = max(time_us, bdisp->dbg.max_duration);
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bdisp->dbg.tot_duration += time_us;
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}
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static void bdisp_dbg_dump_ins(struct seq_file *s, u32 val)
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{
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seq_printf(s, "INS\t0x%08X\t", val);
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switch (val & BLT_INS_S1_MASK) {
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case BLT_INS_S1_OFF:
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break;
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case BLT_INS_S1_MEM:
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seq_puts(s, "SRC1=mem - ");
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break;
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case BLT_INS_S1_CF:
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seq_puts(s, "SRC1=ColorFill - ");
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break;
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case BLT_INS_S1_COPY:
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seq_puts(s, "SRC1=copy - ");
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break;
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case BLT_INS_S1_FILL:
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seq_puts(s, "SRC1=fil - ");
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break;
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default:
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seq_puts(s, "SRC1=??? - ");
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break;
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}
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switch (val & BLT_INS_S2_MASK) {
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case BLT_INS_S2_OFF:
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break;
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case BLT_INS_S2_MEM:
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seq_puts(s, "SRC2=mem - ");
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break;
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case BLT_INS_S2_CF:
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seq_puts(s, "SRC2=ColorFill - ");
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break;
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default:
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seq_puts(s, "SRC2=??? - ");
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break;
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}
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if ((val & BLT_INS_S3_MASK) == BLT_INS_S3_MEM)
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seq_puts(s, "SRC3=mem - ");
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if (val & BLT_INS_IVMX)
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seq_puts(s, "IVMX - ");
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if (val & BLT_INS_CLUT)
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seq_puts(s, "CLUT - ");
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if (val & BLT_INS_SCALE)
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seq_puts(s, "Scale - ");
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if (val & BLT_INS_FLICK)
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seq_puts(s, "Flicker - ");
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if (val & BLT_INS_CLIP)
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seq_puts(s, "Clip - ");
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if (val & BLT_INS_CKEY)
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seq_puts(s, "ColorKey - ");
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if (val & BLT_INS_OVMX)
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seq_puts(s, "OVMX - ");
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if (val & BLT_INS_DEI)
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seq_puts(s, "Deint - ");
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if (val & BLT_INS_PMASK)
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seq_puts(s, "PlaneMask - ");
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if (val & BLT_INS_VC1R)
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seq_puts(s, "VC1R - ");
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if (val & BLT_INS_ROTATE)
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seq_puts(s, "Rotate - ");
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if (val & BLT_INS_GRAD)
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seq_puts(s, "GradFill - ");
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if (val & BLT_INS_AQLOCK)
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seq_puts(s, "AQLock - ");
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if (val & BLT_INS_PACE)
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seq_puts(s, "Pace - ");
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if (val & BLT_INS_IRQ)
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seq_puts(s, "IRQ - ");
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seq_putc(s, '\n');
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}
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static void bdisp_dbg_dump_tty(struct seq_file *s, u32 val)
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{
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seq_printf(s, "TTY\t0x%08X\t", val);
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seq_printf(s, "Pitch=%d - ", val & 0xFFFF);
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switch ((val & BLT_TTY_COL_MASK) >> BLT_TTY_COL_SHIFT) {
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case BDISP_RGB565:
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seq_puts(s, "RGB565 - ");
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break;
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case BDISP_RGB888:
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seq_puts(s, "RGB888 - ");
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break;
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case BDISP_XRGB8888:
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seq_puts(s, "xRGB888 - ");
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break;
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case BDISP_ARGB8888:
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seq_puts(s, "ARGB8888 - ");
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break;
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case BDISP_NV12:
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seq_puts(s, "NV12 - ");
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break;
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case BDISP_YUV_3B:
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seq_puts(s, "YUV420P - ");
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break;
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default:
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seq_puts(s, "ColorFormat ??? - ");
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break;
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}
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if (val & BLT_TTY_ALPHA_R)
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seq_puts(s, "AlphaRange - ");
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if (val & BLT_TTY_CR_NOT_CB)
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seq_puts(s, "CrNotCb - ");
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if (val & BLT_TTY_MB)
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seq_puts(s, "MB - ");
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if (val & BLT_TTY_HSO)
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seq_puts(s, "HSO inverse - ");
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if (val & BLT_TTY_VSO)
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seq_puts(s, "VSO inverse - ");
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if (val & BLT_TTY_DITHER)
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seq_puts(s, "Dither - ");
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if (val & BLT_TTY_CHROMA)
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seq_puts(s, "Write CHROMA - ");
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if (val & BLT_TTY_BIG_END)
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seq_puts(s, "BigEndian - ");
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seq_putc(s, '\n');
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}
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static void bdisp_dbg_dump_xy(struct seq_file *s, u32 val, char *name)
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{
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seq_printf(s, "%s\t0x%08X\t", name, val);
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seq_printf(s, "(%d,%d)\n", val & 0xFFFF, (val >> 16));
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}
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static void bdisp_dbg_dump_sz(struct seq_file *s, u32 val, char *name)
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{
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seq_printf(s, "%s\t0x%08X\t", name, val);
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seq_printf(s, "%dx%d\n", val & 0x1FFF, (val >> 16) & 0x1FFF);
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}
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static void bdisp_dbg_dump_sty(struct seq_file *s,
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u32 val, u32 addr, char *name)
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{
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bool s1, s2, s3;
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seq_printf(s, "%s\t0x%08X\t", name, val);
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if (!addr || !name || (strlen(name) < 2))
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goto done;
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s1 = name[strlen(name) - 1] == '1';
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s2 = name[strlen(name) - 1] == '2';
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s3 = name[strlen(name) - 1] == '3';
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seq_printf(s, "Pitch=%d - ", val & 0xFFFF);
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switch ((val & BLT_TTY_COL_MASK) >> BLT_TTY_COL_SHIFT) {
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case BDISP_RGB565:
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seq_puts(s, "RGB565 - ");
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break;
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case BDISP_RGB888:
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seq_puts(s, "RGB888 - ");
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break;
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case BDISP_XRGB8888:
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seq_puts(s, "xRGB888 - ");
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break;
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case BDISP_ARGB8888:
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seq_puts(s, "ARGB888 - ");
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break;
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case BDISP_NV12:
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seq_puts(s, "NV12 - ");
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break;
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case BDISP_YUV_3B:
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seq_puts(s, "YUV420P - ");
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break;
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default:
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seq_puts(s, "ColorFormat ??? - ");
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break;
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}
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if ((val & BLT_TTY_ALPHA_R) && !s3)
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seq_puts(s, "AlphaRange - ");
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if ((val & BLT_S1TY_A1_SUBSET) && !s3)
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seq_puts(s, "A1SubSet - ");
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if ((val & BLT_TTY_MB) && !s1)
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seq_puts(s, "MB - ");
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if (val & BLT_TTY_HSO)
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seq_puts(s, "HSO inverse - ");
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if (val & BLT_TTY_VSO)
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seq_puts(s, "VSO inverse - ");
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if ((val & BLT_S1TY_CHROMA_EXT) && (s1 || s2))
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seq_puts(s, "ChromaExt - ");
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if ((val & BLT_S3TY_BLANK_ACC) && s3)
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seq_puts(s, "Blank Acc - ");
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if ((val & BTL_S1TY_SUBBYTE) && !s3)
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seq_puts(s, "SubByte - ");
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if ((val & BLT_S1TY_RGB_EXP) && !s3)
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seq_puts(s, "RGBExpand - ");
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if ((val & BLT_TTY_BIG_END) && !s3)
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seq_puts(s, "BigEndian - ");
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done:
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seq_putc(s, '\n');
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}
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static void bdisp_dbg_dump_fctl(struct seq_file *s, u32 val)
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{
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seq_printf(s, "FCTL\t0x%08X\t", val);
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if ((val & BLT_FCTL_Y_HV_SCALE) == BLT_FCTL_Y_HV_SCALE)
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seq_puts(s, "Resize Luma - ");
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else if ((val & BLT_FCTL_Y_HV_SCALE) == BLT_FCTL_Y_HV_SAMPLE)
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seq_puts(s, "Sample Luma - ");
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if ((val & BLT_FCTL_HV_SCALE) == BLT_FCTL_HV_SCALE)
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seq_puts(s, "Resize Chroma");
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else if ((val & BLT_FCTL_HV_SCALE) == BLT_FCTL_HV_SAMPLE)
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seq_puts(s, "Sample Chroma");
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seq_putc(s, '\n');
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}
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static void bdisp_dbg_dump_rsf(struct seq_file *s, u32 val, char *name)
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{
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u32 inc;
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seq_printf(s, "%s\t0x%08X\t", name, val);
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if (!val)
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goto done;
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inc = val & 0xFFFF;
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seq_printf(s, "H: %d(6.10) / scale~%dx0.1 - ", inc, 1024 * 10 / inc);
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inc = val >> 16;
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seq_printf(s, "V: %d(6.10) / scale~%dx0.1", inc, 1024 * 10 / inc);
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done:
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seq_putc(s, '\n');
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}
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static void bdisp_dbg_dump_rzi(struct seq_file *s, u32 val, char *name)
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{
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seq_printf(s, "%s\t0x%08X\t", name, val);
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if (!val)
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goto done;
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seq_printf(s, "H: init=%d repeat=%d - ", val & 0x3FF, (val >> 12) & 7);
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val >>= 16;
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seq_printf(s, "V: init=%d repeat=%d", val & 0x3FF, (val >> 12) & 7);
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done:
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seq_putc(s, '\n');
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}
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static void bdisp_dbg_dump_ivmx(struct seq_file *s,
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u32 c0, u32 c1, u32 c2, u32 c3)
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{
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seq_printf(s, "IVMX0\t0x%08X\n", c0);
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seq_printf(s, "IVMX1\t0x%08X\n", c1);
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seq_printf(s, "IVMX2\t0x%08X\n", c2);
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seq_printf(s, "IVMX3\t0x%08X\t", c3);
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if (!c0 && !c1 && !c2 && !c3) {
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seq_putc(s, '\n');
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return;
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}
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if ((c0 == bdisp_rgb_to_yuv[0]) &&
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(c1 == bdisp_rgb_to_yuv[1]) &&
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(c2 == bdisp_rgb_to_yuv[2]) &&
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(c3 == bdisp_rgb_to_yuv[3])) {
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seq_puts(s, "RGB to YUV\n");
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return;
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}
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if ((c0 == bdisp_yuv_to_rgb[0]) &&
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(c1 == bdisp_yuv_to_rgb[1]) &&
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(c2 == bdisp_yuv_to_rgb[2]) &&
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(c3 == bdisp_yuv_to_rgb[3])) {
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seq_puts(s, "YUV to RGB\n");
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return;
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}
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seq_puts(s, "Unknown conversion\n");
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}
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static int last_nodes_show(struct seq_file *s, void *data)
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{
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/* Not dumping all fields, focusing on significant ones */
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struct bdisp_dev *bdisp = s->private;
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struct bdisp_node *node;
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int i = 0;
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if (!bdisp->dbg.copy_node[0]) {
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seq_puts(s, "No node built yet\n");
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return 0;
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}
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do {
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node = bdisp->dbg.copy_node[i];
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if (!node)
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break;
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seq_printf(s, "--------\nNode %d:\n", i);
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seq_puts(s, "-- General --\n");
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seq_printf(s, "NIP\t0x%08X\n", node->nip);
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seq_printf(s, "CIC\t0x%08X\n", node->cic);
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bdisp_dbg_dump_ins(s, node->ins);
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seq_printf(s, "ACK\t0x%08X\n", node->ack);
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seq_puts(s, "-- Target --\n");
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seq_printf(s, "TBA\t0x%08X\n", node->tba);
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bdisp_dbg_dump_tty(s, node->tty);
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bdisp_dbg_dump_xy(s, node->txy, "TXY");
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bdisp_dbg_dump_sz(s, node->tsz, "TSZ");
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/* Color Fill not dumped */
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seq_puts(s, "-- Source 1 --\n");
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seq_printf(s, "S1BA\t0x%08X\n", node->s1ba);
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bdisp_dbg_dump_sty(s, node->s1ty, node->s1ba, "S1TY");
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bdisp_dbg_dump_xy(s, node->s1xy, "S1XY");
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seq_puts(s, "-- Source 2 --\n");
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seq_printf(s, "S2BA\t0x%08X\n", node->s2ba);
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bdisp_dbg_dump_sty(s, node->s2ty, node->s2ba, "S2TY");
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bdisp_dbg_dump_xy(s, node->s2xy, "S2XY");
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bdisp_dbg_dump_sz(s, node->s2sz, "S2SZ");
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seq_puts(s, "-- Source 3 --\n");
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seq_printf(s, "S3BA\t0x%08X\n", node->s3ba);
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bdisp_dbg_dump_sty(s, node->s3ty, node->s3ba, "S3TY");
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bdisp_dbg_dump_xy(s, node->s3xy, "S3XY");
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bdisp_dbg_dump_sz(s, node->s3sz, "S3SZ");
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/* Clipping not dumped */
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/* CLUT not dumped */
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seq_puts(s, "-- Filter & Mask --\n");
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bdisp_dbg_dump_fctl(s, node->fctl);
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/* PMK not dumped */
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seq_puts(s, "-- Chroma Filter --\n");
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bdisp_dbg_dump_rsf(s, node->rsf, "RSF");
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bdisp_dbg_dump_rzi(s, node->rzi, "RZI");
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seq_printf(s, "HFP\t0x%08X\n", node->hfp);
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seq_printf(s, "VFP\t0x%08X\n", node->vfp);
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seq_puts(s, "-- Luma Filter --\n");
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bdisp_dbg_dump_rsf(s, node->y_rsf, "Y_RSF");
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bdisp_dbg_dump_rzi(s, node->y_rzi, "Y_RZI");
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seq_printf(s, "Y_HFP\t0x%08X\n", node->y_hfp);
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seq_printf(s, "Y_VFP\t0x%08X\n", node->y_vfp);
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/* Flicker not dumped */
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/* Color key not dumped */
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/* Reserved not dumped */
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/* Static Address & User not dumped */
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seq_puts(s, "-- Input Versatile Matrix --\n");
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bdisp_dbg_dump_ivmx(s, node->ivmx0, node->ivmx1,
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node->ivmx2, node->ivmx3);
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/* Output Versatile Matrix not dumped */
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/* Pace not dumped */
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/* VC1R & DEI not dumped */
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/* Gradient Fill not dumped */
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} while ((++i < MAX_NB_NODE) && node->nip);
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return 0;
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}
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static int last_nodes_raw_show(struct seq_file *s, void *data)
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{
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struct bdisp_dev *bdisp = s->private;
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struct bdisp_node *node;
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u32 *val;
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int j, i = 0;
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if (!bdisp->dbg.copy_node[0]) {
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seq_puts(s, "No node built yet\n");
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return 0;
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}
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do {
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node = bdisp->dbg.copy_node[i];
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if (!node)
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break;
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seq_printf(s, "--------\nNode %d:\n", i);
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val = (u32 *)node;
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for (j = 0; j < sizeof(struct bdisp_node) / sizeof(u32); j++)
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seq_printf(s, "0x%08X\n", *val++);
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} while ((++i < MAX_NB_NODE) && node->nip);
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return 0;
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}
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static const char *bdisp_fmt_to_str(struct bdisp_frame frame)
|
{
|
switch (frame.fmt->pixelformat) {
|
case V4L2_PIX_FMT_YUV420:
|
return "YUV420P";
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case V4L2_PIX_FMT_NV12:
|
if (frame.field == V4L2_FIELD_INTERLACED)
|
return "NV12 interlaced";
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else
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return "NV12";
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case V4L2_PIX_FMT_RGB565:
|
return "RGB16";
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case V4L2_PIX_FMT_RGB24:
|
return "RGB24";
|
case V4L2_PIX_FMT_XBGR32:
|
return "XRGB";
|
case V4L2_PIX_FMT_ABGR32:
|
return "ARGB";
|
default:
|
return "????";
|
}
|
}
|
|
static int last_request_show(struct seq_file *s, void *data)
|
{
|
struct bdisp_dev *bdisp = s->private;
|
struct bdisp_request *request = &bdisp->dbg.copy_request;
|
struct bdisp_frame src, dst;
|
|
if (!request->nb_req) {
|
seq_puts(s, "No request\n");
|
return 0;
|
}
|
|
src = request->src;
|
dst = request->dst;
|
|
seq_printf(s, "\nRequest #%d\n", request->nb_req);
|
|
seq_printf(s, "Format: %s\t\t\t%s\n",
|
bdisp_fmt_to_str(src), bdisp_fmt_to_str(dst));
|
seq_printf(s, "Crop area: %dx%d @ %d,%d ==>\t%dx%d @ %d,%d\n",
|
src.crop.width, src.crop.height,
|
src.crop.left, src.crop.top,
|
dst.crop.width, dst.crop.height,
|
dst.crop.left, dst.crop.top);
|
seq_printf(s, "Buff size: %dx%d\t\t%dx%d\n\n",
|
src.width, src.height, dst.width, dst.height);
|
|
if (request->hflip)
|
seq_puts(s, "Horizontal flip\n\n");
|
|
if (request->vflip)
|
seq_puts(s, "Vertical flip\n\n");
|
|
return 0;
|
}
|
|
#define DUMP(reg) seq_printf(s, #reg " \t0x%08X\n", readl(bdisp->regs + reg))
|
|
static int regs_show(struct seq_file *s, void *data)
|
{
|
struct bdisp_dev *bdisp = s->private;
|
int ret;
|
unsigned int i;
|
|
ret = pm_runtime_resume_and_get(bdisp->dev);
|
if (ret < 0) {
|
seq_puts(s, "Cannot wake up IP\n");
|
return 0;
|
}
|
|
seq_printf(s, "Reg @ = 0x%p\n", bdisp->regs);
|
|
seq_puts(s, "\nStatic:\n");
|
DUMP(BLT_CTL);
|
DUMP(BLT_ITS);
|
DUMP(BLT_STA1);
|
DUMP(BLT_AQ1_CTL);
|
DUMP(BLT_AQ1_IP);
|
DUMP(BLT_AQ1_LNA);
|
DUMP(BLT_AQ1_STA);
|
DUMP(BLT_ITM0);
|
|
seq_puts(s, "\nPlugs:\n");
|
DUMP(BLT_PLUGS1_OP2);
|
DUMP(BLT_PLUGS1_CHZ);
|
DUMP(BLT_PLUGS1_MSZ);
|
DUMP(BLT_PLUGS1_PGZ);
|
DUMP(BLT_PLUGS2_OP2);
|
DUMP(BLT_PLUGS2_CHZ);
|
DUMP(BLT_PLUGS2_MSZ);
|
DUMP(BLT_PLUGS2_PGZ);
|
DUMP(BLT_PLUGS3_OP2);
|
DUMP(BLT_PLUGS3_CHZ);
|
DUMP(BLT_PLUGS3_MSZ);
|
DUMP(BLT_PLUGS3_PGZ);
|
DUMP(BLT_PLUGT_OP2);
|
DUMP(BLT_PLUGT_CHZ);
|
DUMP(BLT_PLUGT_MSZ);
|
DUMP(BLT_PLUGT_PGZ);
|
|
seq_puts(s, "\nNode:\n");
|
DUMP(BLT_NIP);
|
DUMP(BLT_CIC);
|
DUMP(BLT_INS);
|
DUMP(BLT_ACK);
|
DUMP(BLT_TBA);
|
DUMP(BLT_TTY);
|
DUMP(BLT_TXY);
|
DUMP(BLT_TSZ);
|
DUMP(BLT_S1BA);
|
DUMP(BLT_S1TY);
|
DUMP(BLT_S1XY);
|
DUMP(BLT_S2BA);
|
DUMP(BLT_S2TY);
|
DUMP(BLT_S2XY);
|
DUMP(BLT_S2SZ);
|
DUMP(BLT_S3BA);
|
DUMP(BLT_S3TY);
|
DUMP(BLT_S3XY);
|
DUMP(BLT_S3SZ);
|
DUMP(BLT_FCTL);
|
DUMP(BLT_RSF);
|
DUMP(BLT_RZI);
|
DUMP(BLT_HFP);
|
DUMP(BLT_VFP);
|
DUMP(BLT_Y_RSF);
|
DUMP(BLT_Y_RZI);
|
DUMP(BLT_Y_HFP);
|
DUMP(BLT_Y_VFP);
|
DUMP(BLT_IVMX0);
|
DUMP(BLT_IVMX1);
|
DUMP(BLT_IVMX2);
|
DUMP(BLT_IVMX3);
|
DUMP(BLT_OVMX0);
|
DUMP(BLT_OVMX1);
|
DUMP(BLT_OVMX2);
|
DUMP(BLT_OVMX3);
|
DUMP(BLT_DEI);
|
|
seq_puts(s, "\nFilter:\n");
|
for (i = 0; i < BLT_NB_H_COEF; i++) {
|
seq_printf(s, "BLT_HFC%d \t0x%08X\n", i,
|
readl(bdisp->regs + BLT_HFC_N + i * 4));
|
}
|
for (i = 0; i < BLT_NB_V_COEF; i++) {
|
seq_printf(s, "BLT_VFC%d \t0x%08X\n", i,
|
readl(bdisp->regs + BLT_VFC_N + i * 4));
|
}
|
|
seq_puts(s, "\nLuma filter:\n");
|
for (i = 0; i < BLT_NB_H_COEF; i++) {
|
seq_printf(s, "BLT_Y_HFC%d \t0x%08X\n", i,
|
readl(bdisp->regs + BLT_Y_HFC_N + i * 4));
|
}
|
for (i = 0; i < BLT_NB_V_COEF; i++) {
|
seq_printf(s, "BLT_Y_VFC%d \t0x%08X\n", i,
|
readl(bdisp->regs + BLT_Y_VFC_N + i * 4));
|
}
|
|
pm_runtime_put(bdisp->dev);
|
|
return 0;
|
}
|
|
#define SECOND 1000000
|
|
static int perf_show(struct seq_file *s, void *data)
|
{
|
struct bdisp_dev *bdisp = s->private;
|
struct bdisp_request *request = &bdisp->dbg.copy_request;
|
s64 avg_time_us;
|
int avg_fps, min_fps, max_fps, last_fps;
|
|
if (!request->nb_req) {
|
seq_puts(s, "No request\n");
|
return 0;
|
}
|
|
avg_time_us = div64_s64(bdisp->dbg.tot_duration, request->nb_req);
|
if (avg_time_us > SECOND)
|
avg_fps = 0;
|
else
|
avg_fps = SECOND / (s32)avg_time_us;
|
|
if (bdisp->dbg.min_duration > SECOND)
|
min_fps = 0;
|
else
|
min_fps = SECOND / (s32)bdisp->dbg.min_duration;
|
|
if (bdisp->dbg.max_duration > SECOND)
|
max_fps = 0;
|
else
|
max_fps = SECOND / (s32)bdisp->dbg.max_duration;
|
|
if (bdisp->dbg.last_duration > SECOND)
|
last_fps = 0;
|
else
|
last_fps = SECOND / (s32)bdisp->dbg.last_duration;
|
|
seq_printf(s, "HW processing (%d requests):\n", request->nb_req);
|
seq_printf(s, " Average: %5lld us (%3d fps)\n",
|
avg_time_us, avg_fps);
|
seq_printf(s, " Min-Max: %5lld us (%3d fps) - %5lld us (%3d fps)\n",
|
bdisp->dbg.min_duration, min_fps,
|
bdisp->dbg.max_duration, max_fps);
|
seq_printf(s, " Last: %5lld us (%3d fps)\n",
|
bdisp->dbg.last_duration, last_fps);
|
|
return 0;
|
}
|
|
#define bdisp_dbg_create_entry(name) \
|
debugfs_create_file(#name, S_IRUGO, bdisp->dbg.debugfs_entry, bdisp, \
|
&name##_fops)
|
|
DEFINE_SHOW_ATTRIBUTE(regs);
|
DEFINE_SHOW_ATTRIBUTE(last_nodes);
|
DEFINE_SHOW_ATTRIBUTE(last_nodes_raw);
|
DEFINE_SHOW_ATTRIBUTE(last_request);
|
DEFINE_SHOW_ATTRIBUTE(perf);
|
|
void bdisp_debugfs_create(struct bdisp_dev *bdisp)
|
{
|
char dirname[16];
|
|
snprintf(dirname, sizeof(dirname), "%s%d", BDISP_NAME, bdisp->id);
|
bdisp->dbg.debugfs_entry = debugfs_create_dir(dirname, NULL);
|
|
bdisp_dbg_create_entry(regs);
|
bdisp_dbg_create_entry(last_nodes);
|
bdisp_dbg_create_entry(last_nodes_raw);
|
bdisp_dbg_create_entry(last_request);
|
bdisp_dbg_create_entry(perf);
|
}
|
|
void bdisp_debugfs_remove(struct bdisp_dev *bdisp)
|
{
|
debugfs_remove_recursive(bdisp->dbg.debugfs_entry);
|
bdisp->dbg.debugfs_entry = NULL;
|
}
|
