mirror of https://gitee.com/openkylin/linux.git
429 lines
14 KiB
C
429 lines
14 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2016 BayLibre, SAS
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* Author: Neil Armstrong <narmstrong@baylibre.com>
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* Copyright (C) 2015 Amlogic, Inc. All rights reserved.
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* Copyright (C) 2014 Endless Mobile
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*/
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#include <linux/export.h>
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#include "meson_drv.h"
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#include "meson_viu.h"
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#include "meson_registers.h"
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/**
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* DOC: Video Input Unit
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*
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* VIU Handles the Pixel scanout and the basic Colorspace conversions
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* We handle the following features :
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*
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* - OSD1 RGB565/RGB888/xRGB8888 scanout
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* - RGB conversion to x/cb/cr
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* - Progressive or Interlace buffer scanout
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* - OSD1 Commit on Vsync
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* - HDR OSD matrix for GXL/GXM
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*
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* What is missing :
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*
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* - BGR888/xBGR8888/BGRx8888/BGRx8888 modes
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* - YUV4:2:2 Y0CbY1Cr scanout
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* - Conversion to YUV 4:4:4 from 4:2:2 input
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* - Colorkey Alpha matching
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* - Big endian scanout
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* - X/Y reverse scanout
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* - Global alpha setup
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* - OSD2 support, would need interlace switching on vsync
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* - OSD1 full scaling to support TV overscan
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*/
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/* OSD csc defines */
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enum viu_matrix_sel_e {
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VIU_MATRIX_OSD_EOTF = 0,
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VIU_MATRIX_OSD,
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};
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enum viu_lut_sel_e {
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VIU_LUT_OSD_EOTF = 0,
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VIU_LUT_OSD_OETF,
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};
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#define COEFF_NORM(a) ((int)((((a) * 2048.0) + 1) / 2))
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#define MATRIX_5X3_COEF_SIZE 24
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#define EOTF_COEFF_NORM(a) ((int)((((a) * 4096.0) + 1) / 2))
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#define EOTF_COEFF_SIZE 10
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#define EOTF_COEFF_RIGHTSHIFT 1
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static int RGB709_to_YUV709l_coeff[MATRIX_5X3_COEF_SIZE] = {
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0, 0, 0, /* pre offset */
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COEFF_NORM(0.181873), COEFF_NORM(0.611831), COEFF_NORM(0.061765),
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COEFF_NORM(-0.100251), COEFF_NORM(-0.337249), COEFF_NORM(0.437500),
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COEFF_NORM(0.437500), COEFF_NORM(-0.397384), COEFF_NORM(-0.040116),
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0, 0, 0, /* 10'/11'/12' */
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0, 0, 0, /* 20'/21'/22' */
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64, 512, 512, /* offset */
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0, 0, 0 /* mode, right_shift, clip_en */
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};
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/* eotf matrix: bypass */
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static int eotf_bypass_coeff[EOTF_COEFF_SIZE] = {
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EOTF_COEFF_NORM(1.0), EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(0.0),
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EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(1.0), EOTF_COEFF_NORM(0.0),
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EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(0.0), EOTF_COEFF_NORM(1.0),
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EOTF_COEFF_RIGHTSHIFT /* right shift */
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};
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static void meson_viu_set_g12a_osd1_matrix(struct meson_drm *priv,
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int *m, bool csc_on)
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{
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/* VPP WRAP OSD1 matrix */
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writel(((m[0] & 0xfff) << 16) | (m[1] & 0xfff),
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priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_PRE_OFFSET0_1));
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writel(m[2] & 0xfff,
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priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_PRE_OFFSET2));
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writel(((m[3] & 0x1fff) << 16) | (m[4] & 0x1fff),
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priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF00_01));
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writel(((m[5] & 0x1fff) << 16) | (m[6] & 0x1fff),
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priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF02_10));
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writel(((m[7] & 0x1fff) << 16) | (m[8] & 0x1fff),
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priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF11_12));
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writel(((m[9] & 0x1fff) << 16) | (m[10] & 0x1fff),
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priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF20_21));
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writel((m[11] & 0x1fff) << 16,
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priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_COEF22));
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writel(((m[18] & 0xfff) << 16) | (m[19] & 0xfff),
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priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_OFFSET0_1));
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writel(m[20] & 0xfff,
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priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_OFFSET2));
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writel_bits_relaxed(BIT(0), csc_on ? BIT(0) : 0,
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priv->io_base + _REG(VPP_WRAP_OSD1_MATRIX_EN_CTRL));
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}
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static void meson_viu_set_osd_matrix(struct meson_drm *priv,
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enum viu_matrix_sel_e m_select,
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int *m, bool csc_on)
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{
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if (m_select == VIU_MATRIX_OSD) {
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/* osd matrix, VIU_MATRIX_0 */
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writel(((m[0] & 0xfff) << 16) | (m[1] & 0xfff),
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priv->io_base + _REG(VIU_OSD1_MATRIX_PRE_OFFSET0_1));
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writel(m[2] & 0xfff,
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priv->io_base + _REG(VIU_OSD1_MATRIX_PRE_OFFSET2));
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writel(((m[3] & 0x1fff) << 16) | (m[4] & 0x1fff),
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priv->io_base + _REG(VIU_OSD1_MATRIX_COEF00_01));
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writel(((m[5] & 0x1fff) << 16) | (m[6] & 0x1fff),
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priv->io_base + _REG(VIU_OSD1_MATRIX_COEF02_10));
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writel(((m[7] & 0x1fff) << 16) | (m[8] & 0x1fff),
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priv->io_base + _REG(VIU_OSD1_MATRIX_COEF11_12));
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writel(((m[9] & 0x1fff) << 16) | (m[10] & 0x1fff),
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priv->io_base + _REG(VIU_OSD1_MATRIX_COEF20_21));
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if (m[21]) {
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writel(((m[11] & 0x1fff) << 16) | (m[12] & 0x1fff),
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priv->io_base +
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_REG(VIU_OSD1_MATRIX_COEF22_30));
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writel(((m[13] & 0x1fff) << 16) | (m[14] & 0x1fff),
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priv->io_base +
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_REG(VIU_OSD1_MATRIX_COEF31_32));
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writel(((m[15] & 0x1fff) << 16) | (m[16] & 0x1fff),
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priv->io_base +
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_REG(VIU_OSD1_MATRIX_COEF40_41));
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writel(m[17] & 0x1fff, priv->io_base +
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_REG(VIU_OSD1_MATRIX_COLMOD_COEF42));
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} else
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writel((m[11] & 0x1fff) << 16, priv->io_base +
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_REG(VIU_OSD1_MATRIX_COEF22_30));
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writel(((m[18] & 0xfff) << 16) | (m[19] & 0xfff),
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priv->io_base + _REG(VIU_OSD1_MATRIX_OFFSET0_1));
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writel(m[20] & 0xfff,
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priv->io_base + _REG(VIU_OSD1_MATRIX_OFFSET2));
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writel_bits_relaxed(3 << 30, m[21] << 30,
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priv->io_base + _REG(VIU_OSD1_MATRIX_COLMOD_COEF42));
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writel_bits_relaxed(7 << 16, m[22] << 16,
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priv->io_base + _REG(VIU_OSD1_MATRIX_COLMOD_COEF42));
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/* 23 reserved for clipping control */
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writel_bits_relaxed(BIT(0), csc_on ? BIT(0) : 0,
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priv->io_base + _REG(VIU_OSD1_MATRIX_CTRL));
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writel_bits_relaxed(BIT(1), 0,
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priv->io_base + _REG(VIU_OSD1_MATRIX_CTRL));
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} else if (m_select == VIU_MATRIX_OSD_EOTF) {
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int i;
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/* osd eotf matrix, VIU_MATRIX_OSD_EOTF */
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for (i = 0; i < 5; i++)
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writel(((m[i * 2] & 0x1fff) << 16) |
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(m[i * 2 + 1] & 0x1fff), priv->io_base +
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_REG(VIU_OSD1_EOTF_CTL + i + 1));
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writel_bits_relaxed(BIT(30), csc_on ? BIT(30) : 0,
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priv->io_base + _REG(VIU_OSD1_EOTF_CTL));
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writel_bits_relaxed(BIT(31), csc_on ? BIT(31) : 0,
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priv->io_base + _REG(VIU_OSD1_EOTF_CTL));
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}
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}
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#define OSD_EOTF_LUT_SIZE 33
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#define OSD_OETF_LUT_SIZE 41
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static void
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meson_viu_set_osd_lut(struct meson_drm *priv, enum viu_lut_sel_e lut_sel,
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unsigned int *r_map, unsigned int *g_map,
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unsigned int *b_map, bool csc_on)
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{
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unsigned int addr_port;
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unsigned int data_port;
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unsigned int ctrl_port;
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int i;
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if (lut_sel == VIU_LUT_OSD_EOTF) {
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addr_port = VIU_OSD1_EOTF_LUT_ADDR_PORT;
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data_port = VIU_OSD1_EOTF_LUT_DATA_PORT;
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ctrl_port = VIU_OSD1_EOTF_CTL;
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} else if (lut_sel == VIU_LUT_OSD_OETF) {
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addr_port = VIU_OSD1_OETF_LUT_ADDR_PORT;
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data_port = VIU_OSD1_OETF_LUT_DATA_PORT;
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ctrl_port = VIU_OSD1_OETF_CTL;
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} else
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return;
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if (lut_sel == VIU_LUT_OSD_OETF) {
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writel(0, priv->io_base + _REG(addr_port));
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for (i = 0; i < (OSD_OETF_LUT_SIZE / 2); i++)
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writel(r_map[i * 2] | (r_map[i * 2 + 1] << 16),
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priv->io_base + _REG(data_port));
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writel(r_map[OSD_OETF_LUT_SIZE - 1] | (g_map[0] << 16),
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priv->io_base + _REG(data_port));
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for (i = 0; i < (OSD_OETF_LUT_SIZE / 2); i++)
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writel(g_map[i * 2 + 1] | (g_map[i * 2 + 2] << 16),
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priv->io_base + _REG(data_port));
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for (i = 0; i < (OSD_OETF_LUT_SIZE / 2); i++)
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writel(b_map[i * 2] | (b_map[i * 2 + 1] << 16),
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priv->io_base + _REG(data_port));
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writel(b_map[OSD_OETF_LUT_SIZE - 1],
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priv->io_base + _REG(data_port));
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if (csc_on)
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writel_bits_relaxed(0x7 << 29, 7 << 29,
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priv->io_base + _REG(ctrl_port));
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else
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writel_bits_relaxed(0x7 << 29, 0,
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priv->io_base + _REG(ctrl_port));
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} else if (lut_sel == VIU_LUT_OSD_EOTF) {
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writel(0, priv->io_base + _REG(addr_port));
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for (i = 0; i < (OSD_EOTF_LUT_SIZE / 2); i++)
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writel(r_map[i * 2] | (r_map[i * 2 + 1] << 16),
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priv->io_base + _REG(data_port));
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writel(r_map[OSD_EOTF_LUT_SIZE - 1] | (g_map[0] << 16),
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priv->io_base + _REG(data_port));
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for (i = 0; i < (OSD_EOTF_LUT_SIZE / 2); i++)
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writel(g_map[i * 2 + 1] | (g_map[i * 2 + 2] << 16),
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priv->io_base + _REG(data_port));
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for (i = 0; i < (OSD_EOTF_LUT_SIZE / 2); i++)
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writel(b_map[i * 2] | (b_map[i * 2 + 1] << 16),
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priv->io_base + _REG(data_port));
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writel(b_map[OSD_EOTF_LUT_SIZE - 1],
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priv->io_base + _REG(data_port));
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if (csc_on)
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writel_bits_relaxed(7 << 27, 7 << 27,
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priv->io_base + _REG(ctrl_port));
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else
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writel_bits_relaxed(7 << 27, 0,
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priv->io_base + _REG(ctrl_port));
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writel_bits_relaxed(BIT(31), BIT(31),
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priv->io_base + _REG(ctrl_port));
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}
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}
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/* eotf lut: linear */
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static unsigned int eotf_33_linear_mapping[OSD_EOTF_LUT_SIZE] = {
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0x0000, 0x0200, 0x0400, 0x0600,
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0x0800, 0x0a00, 0x0c00, 0x0e00,
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0x1000, 0x1200, 0x1400, 0x1600,
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0x1800, 0x1a00, 0x1c00, 0x1e00,
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0x2000, 0x2200, 0x2400, 0x2600,
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0x2800, 0x2a00, 0x2c00, 0x2e00,
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0x3000, 0x3200, 0x3400, 0x3600,
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0x3800, 0x3a00, 0x3c00, 0x3e00,
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0x4000
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};
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/* osd oetf lut: linear */
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static unsigned int oetf_41_linear_mapping[OSD_OETF_LUT_SIZE] = {
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0, 0, 0, 0,
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0, 32, 64, 96,
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128, 160, 196, 224,
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256, 288, 320, 352,
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384, 416, 448, 480,
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512, 544, 576, 608,
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640, 672, 704, 736,
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768, 800, 832, 864,
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896, 928, 960, 992,
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1023, 1023, 1023, 1023,
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1023
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};
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static void meson_viu_load_matrix(struct meson_drm *priv)
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{
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/* eotf lut bypass */
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meson_viu_set_osd_lut(priv, VIU_LUT_OSD_EOTF,
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eotf_33_linear_mapping, /* R */
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eotf_33_linear_mapping, /* G */
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eotf_33_linear_mapping, /* B */
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false);
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/* eotf matrix bypass */
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meson_viu_set_osd_matrix(priv, VIU_MATRIX_OSD_EOTF,
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eotf_bypass_coeff,
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false);
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/* oetf lut bypass */
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meson_viu_set_osd_lut(priv, VIU_LUT_OSD_OETF,
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oetf_41_linear_mapping, /* R */
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oetf_41_linear_mapping, /* G */
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oetf_41_linear_mapping, /* B */
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false);
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/* osd matrix RGB709 to YUV709 limit */
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meson_viu_set_osd_matrix(priv, VIU_MATRIX_OSD,
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RGB709_to_YUV709l_coeff,
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true);
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}
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/* VIU OSD1 Reset as workaround for GXL+ Alpha OSD Bug */
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void meson_viu_osd1_reset(struct meson_drm *priv)
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{
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uint32_t osd1_fifo_ctrl_stat, osd1_ctrl_stat2;
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/* Save these 2 registers state */
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osd1_fifo_ctrl_stat = readl_relaxed(
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priv->io_base + _REG(VIU_OSD1_FIFO_CTRL_STAT));
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osd1_ctrl_stat2 = readl_relaxed(
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priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
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/* Reset OSD1 */
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writel_bits_relaxed(VIU_SW_RESET_OSD1, VIU_SW_RESET_OSD1,
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priv->io_base + _REG(VIU_SW_RESET));
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writel_bits_relaxed(VIU_SW_RESET_OSD1, 0,
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priv->io_base + _REG(VIU_SW_RESET));
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/* Rewrite these registers state lost in the reset */
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writel_relaxed(osd1_fifo_ctrl_stat,
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priv->io_base + _REG(VIU_OSD1_FIFO_CTRL_STAT));
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writel_relaxed(osd1_ctrl_stat2,
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priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
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/* Reload the conversion matrix */
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meson_viu_load_matrix(priv);
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}
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static inline uint32_t meson_viu_osd_burst_length_reg(uint32_t length)
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{
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uint32_t val = (((length & 0x80) % 24) / 12);
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return (((val & 0x3) << 10) | (((val & 0x4) >> 2) << 31));
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}
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void meson_viu_init(struct meson_drm *priv)
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{
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uint32_t reg;
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/* Disable OSDs */
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writel_bits_relaxed(VIU_OSD1_OSD_BLK_ENABLE | VIU_OSD1_OSD_ENABLE, 0,
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priv->io_base + _REG(VIU_OSD1_CTRL_STAT));
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writel_bits_relaxed(VIU_OSD1_OSD_BLK_ENABLE | VIU_OSD1_OSD_ENABLE, 0,
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priv->io_base + _REG(VIU_OSD2_CTRL_STAT));
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/* On GXL/GXM, Use the 10bit HDR conversion matrix */
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if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
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meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL))
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meson_viu_load_matrix(priv);
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else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
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meson_viu_set_g12a_osd1_matrix(priv, RGB709_to_YUV709l_coeff,
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true);
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/* Initialize OSD1 fifo control register */
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reg = VIU_OSD_DDR_PRIORITY_URGENT |
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VIU_OSD_HOLD_FIFO_LINES(4) |
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VIU_OSD_FIFO_DEPTH_VAL(32) | /* fifo_depth_val: 32*8=256 */
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VIU_OSD_WORDS_PER_BURST(4) | /* 4 words in 1 burst */
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VIU_OSD_FIFO_LIMITS(2); /* fifo_lim: 2*16=32 */
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if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
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reg |= meson_viu_osd_burst_length_reg(32);
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else
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reg |= meson_viu_osd_burst_length_reg(64);
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writel_relaxed(reg, priv->io_base + _REG(VIU_OSD1_FIFO_CTRL_STAT));
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writel_relaxed(reg, priv->io_base + _REG(VIU_OSD2_FIFO_CTRL_STAT));
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/* Set OSD alpha replace value */
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writel_bits_relaxed(0xff << OSD_REPLACE_SHIFT,
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0xff << OSD_REPLACE_SHIFT,
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priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
|
|
writel_bits_relaxed(0xff << OSD_REPLACE_SHIFT,
|
|
0xff << OSD_REPLACE_SHIFT,
|
|
priv->io_base + _REG(VIU_OSD2_CTRL_STAT2));
|
|
|
|
/* Disable VD1 AFBC */
|
|
/* di_mif0_en=0 mif0_to_vpp_en=0 di_mad_en=0 and afbc vd1 set=0*/
|
|
writel_bits_relaxed(VIU_CTRL0_VD1_AFBC_MASK, 0,
|
|
priv->io_base + _REG(VIU_MISC_CTRL0));
|
|
writel_relaxed(0, priv->io_base + _REG(AFBC_ENABLE));
|
|
|
|
writel_relaxed(0x00FF00C0,
|
|
priv->io_base + _REG(VD1_IF0_LUMA_FIFO_SIZE));
|
|
writel_relaxed(0x00FF00C0,
|
|
priv->io_base + _REG(VD2_IF0_LUMA_FIFO_SIZE));
|
|
|
|
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
|
|
writel_relaxed(VIU_OSD_BLEND_REORDER(0, 1) |
|
|
VIU_OSD_BLEND_REORDER(1, 0) |
|
|
VIU_OSD_BLEND_REORDER(2, 0) |
|
|
VIU_OSD_BLEND_REORDER(3, 0) |
|
|
VIU_OSD_BLEND_DIN_EN(1) |
|
|
VIU_OSD_BLEND1_DIN3_BYPASS_TO_DOUT1 |
|
|
VIU_OSD_BLEND1_DOUT_BYPASS_TO_BLEND2 |
|
|
VIU_OSD_BLEND_DIN0_BYPASS_TO_DOUT0 |
|
|
VIU_OSD_BLEND_BLEN2_PREMULT_EN(1) |
|
|
VIU_OSD_BLEND_HOLD_LINES(4),
|
|
priv->io_base + _REG(VIU_OSD_BLEND_CTRL));
|
|
|
|
writel_relaxed(OSD_BLEND_PATH_SEL_ENABLE,
|
|
priv->io_base + _REG(OSD1_BLEND_SRC_CTRL));
|
|
writel_relaxed(OSD_BLEND_PATH_SEL_ENABLE,
|
|
priv->io_base + _REG(OSD2_BLEND_SRC_CTRL));
|
|
writel_relaxed(0, priv->io_base + _REG(VD1_BLEND_SRC_CTRL));
|
|
writel_relaxed(0, priv->io_base + _REG(VD2_BLEND_SRC_CTRL));
|
|
writel_relaxed(0,
|
|
priv->io_base + _REG(VIU_OSD_BLEND_DUMMY_DATA0));
|
|
writel_relaxed(0,
|
|
priv->io_base + _REG(VIU_OSD_BLEND_DUMMY_ALPHA));
|
|
|
|
writel_bits_relaxed(DOLBY_BYPASS_EN(0xc), DOLBY_BYPASS_EN(0xc),
|
|
priv->io_base + _REG(DOLBY_PATH_CTRL));
|
|
}
|
|
|
|
priv->viu.osd1_enabled = false;
|
|
priv->viu.osd1_commit = false;
|
|
priv->viu.osd1_interlace = false;
|
|
}
|