1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Amlogic Meson Video Processing Unit driver
4 *
5 * Copyright (c) 2018 BayLibre, SAS.
6 * Author: Neil Armstrong <narmstrong@baylibre.com>
7 */
8
9 #ifndef __MESON_VPU_H__
10 #define __MESON_VPU_H__
11
12 #include <common.h>
13 #include <dm.h>
14 #include <video.h>
15 #include <display.h>
16 #include <linux/io.h>
17 #include "meson_registers.h"
18
19 enum {
20 /* Maximum size we support */
21 VPU_MAX_WIDTH = 3840,
22 VPU_MAX_HEIGHT = 2160,
23 VPU_MAX_LOG2_BPP = VIDEO_BPP32,
24 };
25
26 enum vpu_compatible {
27 VPU_COMPATIBLE_GXBB = 0,
28 VPU_COMPATIBLE_GXL = 1,
29 VPU_COMPATIBLE_GXM = 2,
30 };
31
32 struct meson_vpu_priv {
33 struct udevice *dev;
34 void __iomem *io_base;
35 void __iomem *hhi_base;
36 void __iomem *dmc_base;
37 };
38
meson_vpu_is_compatible(struct meson_vpu_priv * priv,enum vpu_compatible family)39 static inline bool meson_vpu_is_compatible(struct meson_vpu_priv *priv,
40 enum vpu_compatible family)
41 {
42 enum vpu_compatible compat = dev_get_driver_data(priv->dev);
43
44 return compat == family;
45 }
46
47 #define hhi_update_bits(offset, mask, value) \
48 writel_bits(mask, value, priv->hhi_base + offset)
49
50 #define hhi_write(offset, value) \
51 writel(value, priv->hhi_base + offset)
52
53 #define hhi_read(offset) \
54 readl(priv->hhi_base + offset)
55
56 #define dmc_update_bits(offset, mask, value) \
57 writel_bits(mask, value, priv->dmc_base + offset)
58
59 #define dmc_write(offset, value) \
60 writel(value, priv->dmc_base + offset)
61
62 #define dmc_read(offset) \
63 readl(priv->dmc_base + offset)
64
65 #define MESON_CANVAS_ID_OSD1 0x4e
66
67 /* Canvas configuration. */
68 #define MESON_CANVAS_WRAP_NONE 0x00
69 #define MESON_CANVAS_WRAP_X 0x01
70 #define MESON_CANVAS_WRAP_Y 0x02
71
72 #define MESON_CANVAS_BLKMODE_LINEAR 0x00
73 #define MESON_CANVAS_BLKMODE_32x32 0x01
74 #define MESON_CANVAS_BLKMODE_64x64 0x02
75
76 void meson_canvas_setup(struct meson_vpu_priv *priv,
77 u32 canvas_index, u32 addr,
78 u32 stride, u32 height,
79 unsigned int wrap,
80 unsigned int blkmode);
81
82 /* Mux VIU/VPP to ENCI */
83 #define MESON_VIU_VPP_MUX_ENCI 0x5
84 /* Mux VIU/VPP to ENCP */
85 #define MESON_VIU_VPP_MUX_ENCP 0xA
86
87 void meson_vpp_setup_mux(struct meson_vpu_priv *priv, unsigned int mux);
88 void meson_vpu_init(struct udevice *dev);
89 void meson_vpu_setup_plane(struct udevice *dev, bool is_interlaced);
90 bool meson_venc_hdmi_supported_mode(const struct display_timing *mode);
91 void meson_vpu_setup_venc(struct udevice *dev,
92 const struct display_timing *mode, bool is_cvbs);
93 bool meson_vclk_dmt_supported_freq(struct meson_vpu_priv *priv,
94 unsigned int freq);
95 void meson_vpu_setup_vclk(struct udevice *dev,
96 const struct display_timing *mode, bool is_cvbs);
97 #endif
98