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// SPDX-License-Identifier: GPL-2.0
/*
* Amlogic Meson Video Processing Unit driver
*
* Copyright (c) 2018 BayLibre, SAS.
* Author: Neil Armstrong <narmstrong@baylibre.com>
*/
#include "meson_vpu.h"
/* OSDx_BLKx_CFG */
#define OSD_CANVAS_SEL 16
#define OSD_ENDIANNESS_LE BIT(15)
#define OSD_ENDIANNESS_BE (0)
#define OSD_BLK_MODE_422 (0x03 << 8)
#define OSD_BLK_MODE_16 (0x04 << 8)
#define OSD_BLK_MODE_32 (0x05 << 8)
#define OSD_BLK_MODE_24 (0x07 << 8)
#define OSD_OUTPUT_COLOR_RGB BIT(7)
#define OSD_OUTPUT_COLOR_YUV (0)
#define OSD_COLOR_MATRIX_32_RGBA (0x00 << 2)
#define OSD_COLOR_MATRIX_32_ARGB (0x01 << 2)
#define OSD_COLOR_MATRIX_32_ABGR (0x02 << 2)
#define OSD_COLOR_MATRIX_32_BGRA (0x03 << 2)
#define OSD_COLOR_MATRIX_24_RGB (0x00 << 2)
#define OSD_COLOR_MATRIX_16_RGB655 (0x00 << 2)
#define OSD_COLOR_MATRIX_16_RGB565 (0x04 << 2)
#define OSD_INTERLACE_ENABLED BIT(1)
#define OSD_INTERLACE_ODD BIT(0)
#define OSD_INTERLACE_EVEN (0)
/* OSDx_CTRL_STAT */
#define OSD_ENABLE BIT(21)
#define OSD_BLK0_ENABLE BIT(0)
#define OSD_GLOBAL_ALPHA_SHIFT 12
/* OSDx_CTRL_STAT2 */
#define OSD_REPLACE_EN BIT(14)
#define OSD_REPLACE_SHIFT 6
/*
* When the output is interlaced, the OSD must switch between
* each field using the INTERLACE_SEL_ODD (0) of VIU_OSD1_BLK0_CFG_W0
* at each vsync.
* But the vertical scaler can provide such funtionnality if
* is configured for 2:1 scaling with interlace options enabled.
*/
static void meson_vpp_setup_interlace_vscaler_osd1(struct meson_vpu_priv *priv,
struct video_priv *uc_priv)
{
writel(BIT(3) /* Enable scaler */ |
BIT(2), /* Select OSD1 */
priv->io_base + _REG(VPP_OSD_SC_CTRL0));
writel(((uc_priv->xsize - 1) << 16) | (uc_priv->ysize - 1),
priv->io_base + _REG(VPP_OSD_SCI_WH_M1));
/* 2:1 scaling */
writel((0 << 16) | uc_priv->xsize,
priv->io_base + _REG(VPP_OSD_SCO_H_START_END));
writel(((0 >> 1) << 16) | (uc_priv->ysize >> 1),
priv->io_base + _REG(VPP_OSD_SCO_V_START_END));
/* 2:1 scaling values */
writel(BIT(16), priv->io_base + _REG(VPP_OSD_VSC_INI_PHASE));
writel(BIT(25), priv->io_base + _REG(VPP_OSD_VSC_PHASE_STEP));
writel(0, priv->io_base + _REG(VPP_OSD_HSC_CTRL0));
writel((4 << 0) /* osd_vsc_bank_length */ |
(4 << 3) /* osd_vsc_top_ini_rcv_num0 */ |
(1 << 8) /* osd_vsc_top_rpt_p0_num0 */ |
(6 << 11) /* osd_vsc_bot_ini_rcv_num0 */ |
(2 << 16) /* osd_vsc_bot_rpt_p0_num0 */ |
BIT(23) /* osd_prog_interlace */ |
BIT(24), /* Enable vertical scaler */
priv->io_base + _REG(VPP_OSD_VSC_CTRL0));
}
static void
meson_vpp_disable_interlace_vscaler_osd1(struct meson_vpu_priv *priv)
{
writel(0, priv->io_base + _REG(VPP_OSD_SC_CTRL0));
writel(0, priv->io_base + _REG(VPP_OSD_VSC_CTRL0));
writel(0, priv->io_base + _REG(VPP_OSD_HSC_CTRL0));
}
void meson_vpu_setup_plane(struct udevice *dev, bool is_interlaced)
{
struct video_uc_platdata *uc_plat = dev_get_uclass_platdata(dev);
struct video_priv *uc_priv = dev_get_uclass_priv(dev);
struct meson_vpu_priv *priv = dev_get_priv(dev);
u32 osd1_ctrl_stat;
u32 osd1_blk0_cfg[5];
bool osd1_interlace;
unsigned int src_x1, src_x2, src_y1, src_y2;
unsigned int dest_x1, dest_x2, dest_y1, dest_y2;
dest_x1 = src_x1 = 0;
dest_x2 = src_x2 = uc_priv->xsize;
dest_y1 = src_y1 = 0;
dest_y2 = src_y2 = uc_priv->ysize;
/* Enable VPP Postblend */
writel(uc_priv->xsize,
priv->io_base + _REG(VPP_POSTBLEND_H_SIZE));
writel_bits(VPP_POSTBLEND_ENABLE, VPP_POSTBLEND_ENABLE,
priv->io_base + _REG(VPP_MISC));
/* uc_plat->base is the framebuffer */
/* Enable OSD and BLK0, set max global alpha */
osd1_ctrl_stat = OSD_ENABLE | (0xFF << OSD_GLOBAL_ALPHA_SHIFT) |
OSD_BLK0_ENABLE;
/* Set up BLK0 to point to the right canvas */
osd1_blk0_cfg[0] = ((MESON_CANVAS_ID_OSD1 << OSD_CANVAS_SEL) |
OSD_ENDIANNESS_LE);
/* On GXBB, Use the old non-HDR RGB2YUV converter */
if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB))
osd1_blk0_cfg[0] |= OSD_OUTPUT_COLOR_RGB;
/* For XRGB, replace the pixel's alpha by 0xFF */
writel_bits(OSD_REPLACE_EN, OSD_REPLACE_EN,
priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
OSD_COLOR_MATRIX_32_ARGB;
if (is_interlaced) {
osd1_interlace = true;
dest_y1 /= 2;
dest_y2 /= 2;
} else {
osd1_interlace = false;
}
/*
* The format of these registers is (x2 << 16 | x1),
* where x2 is exclusive.
* e.g. +30x1920 would be (1919 << 16) | 30
*/
osd1_blk0_cfg[1] = ((src_x2 - 1) << 16) | src_x1;
osd1_blk0_cfg[2] = ((src_y2 - 1) << 16) | src_y1;
osd1_blk0_cfg[3] = ((dest_x2 - 1) << 16) | dest_x1;
osd1_blk0_cfg[4] = ((dest_y2 - 1) << 16) | dest_y1;
writel(osd1_ctrl_stat, priv->io_base + _REG(VIU_OSD1_CTRL_STAT));
writel(osd1_blk0_cfg[0], priv->io_base + _REG(VIU_OSD1_BLK0_CFG_W0));
writel(osd1_blk0_cfg[1], priv->io_base + _REG(VIU_OSD1_BLK0_CFG_W1));
writel(osd1_blk0_cfg[2], priv->io_base + _REG(VIU_OSD1_BLK0_CFG_W2));
writel(osd1_blk0_cfg[3], priv->io_base + _REG(VIU_OSD1_BLK0_CFG_W3));
writel(osd1_blk0_cfg[4], priv->io_base + _REG(VIU_OSD1_BLK0_CFG_W4));
/* If output is interlace, make use of the Scaler */
if (osd1_interlace)
meson_vpp_setup_interlace_vscaler_osd1(priv, uc_priv);
else
meson_vpp_disable_interlace_vscaler_osd1(priv);
meson_canvas_setup(priv, MESON_CANVAS_ID_OSD1,
uc_plat->base, uc_priv->xsize * 4,
uc_priv->ysize, MESON_CANVAS_WRAP_NONE,
MESON_CANVAS_BLKMODE_LINEAR);
/* Enable OSD1 */
writel_bits(VPP_OSD1_POSTBLEND, VPP_OSD1_POSTBLEND,
priv->io_base + _REG(VPP_MISC));
}
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