// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2017 Icenowy Zheng * * Based on sun4i_backend.c, which is: * Copyright (C) 2015 Free Electrons * Copyright (C) 2015 NextThing Co */ #include #include #include #include #include #include #include #include #include #include #include #include #include "sun4i_drv.h" #include "sun8i_mixer.h" #include "sun8i_ui_layer.h" #include "sun8i_vi_layer.h" #include "sunxi_engine.h" static const struct de2_fmt_info de2_formats[] = { { .drm_fmt = DRM_FORMAT_ARGB8888, .de2_fmt = SUN8I_MIXER_FBFMT_ARGB8888, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_ABGR8888, .de2_fmt = SUN8I_MIXER_FBFMT_ABGR8888, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_RGBA8888, .de2_fmt = SUN8I_MIXER_FBFMT_RGBA8888, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_BGRA8888, .de2_fmt = SUN8I_MIXER_FBFMT_BGRA8888, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_XRGB8888, .de2_fmt = SUN8I_MIXER_FBFMT_XRGB8888, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_XBGR8888, .de2_fmt = SUN8I_MIXER_FBFMT_XBGR8888, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_RGBX8888, .de2_fmt = SUN8I_MIXER_FBFMT_RGBX8888, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_BGRX8888, .de2_fmt = SUN8I_MIXER_FBFMT_BGRX8888, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_RGB888, .de2_fmt = SUN8I_MIXER_FBFMT_RGB888, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_BGR888, .de2_fmt = SUN8I_MIXER_FBFMT_BGR888, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_RGB565, .de2_fmt = SUN8I_MIXER_FBFMT_RGB565, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_BGR565, .de2_fmt = SUN8I_MIXER_FBFMT_BGR565, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_ARGB4444, .de2_fmt = SUN8I_MIXER_FBFMT_ARGB4444, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_ABGR4444, .de2_fmt = SUN8I_MIXER_FBFMT_ABGR4444, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_RGBA4444, .de2_fmt = SUN8I_MIXER_FBFMT_RGBA4444, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_BGRA4444, .de2_fmt = SUN8I_MIXER_FBFMT_BGRA4444, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_ARGB1555, .de2_fmt = SUN8I_MIXER_FBFMT_ARGB1555, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_ABGR1555, .de2_fmt = SUN8I_MIXER_FBFMT_ABGR1555, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_RGBA5551, .de2_fmt = SUN8I_MIXER_FBFMT_RGBA5551, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_BGRA5551, .de2_fmt = SUN8I_MIXER_FBFMT_BGRA5551, .rgb = true, .csc = SUN8I_CSC_MODE_OFF, }, { .drm_fmt = DRM_FORMAT_UYVY, .de2_fmt = SUN8I_MIXER_FBFMT_UYVY, .rgb = false, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_VYUY, .de2_fmt = SUN8I_MIXER_FBFMT_VYUY, .rgb = false, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_YUYV, .de2_fmt = SUN8I_MIXER_FBFMT_YUYV, .rgb = false, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_YVYU, .de2_fmt = SUN8I_MIXER_FBFMT_YVYU, .rgb = false, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_NV16, .de2_fmt = SUN8I_MIXER_FBFMT_NV16, .rgb = false, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_NV61, .de2_fmt = SUN8I_MIXER_FBFMT_NV61, .rgb = false, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_NV12, .de2_fmt = SUN8I_MIXER_FBFMT_NV12, .rgb = false, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_NV21, .de2_fmt = SUN8I_MIXER_FBFMT_NV21, .rgb = false, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_YUV444, .de2_fmt = SUN8I_MIXER_FBFMT_RGB888, .rgb = true, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_YUV422, .de2_fmt = SUN8I_MIXER_FBFMT_YUV422, .rgb = false, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_YUV420, .de2_fmt = SUN8I_MIXER_FBFMT_YUV420, .rgb = false, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_YUV411, .de2_fmt = SUN8I_MIXER_FBFMT_YUV411, .rgb = false, .csc = SUN8I_CSC_MODE_YUV2RGB, }, { .drm_fmt = DRM_FORMAT_YVU444, .de2_fmt = SUN8I_MIXER_FBFMT_RGB888, .rgb = true, .csc = SUN8I_CSC_MODE_YVU2RGB, }, { .drm_fmt = DRM_FORMAT_YVU422, .de2_fmt = SUN8I_MIXER_FBFMT_YUV422, .rgb = false, .csc = SUN8I_CSC_MODE_YVU2RGB, }, { .drm_fmt = DRM_FORMAT_YVU420, .de2_fmt = SUN8I_MIXER_FBFMT_YUV420, .rgb = false, .csc = SUN8I_CSC_MODE_YVU2RGB, }, { .drm_fmt = DRM_FORMAT_YVU411, .de2_fmt = SUN8I_MIXER_FBFMT_YUV411, .rgb = false, .csc = SUN8I_CSC_MODE_YVU2RGB, }, }; const struct de2_fmt_info *sun8i_mixer_format_info(u32 format) { unsigned int i; for (i = 0; i < ARRAY_SIZE(de2_formats); ++i) if (de2_formats[i].drm_fmt == format) return &de2_formats[i]; return NULL; } static void sun8i_mixer_commit(struct sunxi_engine *engine) { DRM_DEBUG_DRIVER("Committing changes\n"); regmap_write(engine->regs, SUN8I_MIXER_GLOBAL_DBUFF, SUN8I_MIXER_GLOBAL_DBUFF_ENABLE); } static struct drm_plane **sun8i_layers_init(struct drm_device *drm, struct sunxi_engine *engine) { struct drm_plane **planes; struct sun8i_mixer *mixer = engine_to_sun8i_mixer(engine); int i; planes = devm_kcalloc(drm->dev, mixer->cfg->vi_num + mixer->cfg->ui_num + 1, sizeof(*planes), GFP_KERNEL); if (!planes) return ERR_PTR(-ENOMEM); for (i = 0; i < mixer->cfg->vi_num; i++) { struct sun8i_vi_layer *layer; layer = sun8i_vi_layer_init_one(drm, mixer, i); if (IS_ERR(layer)) { dev_err(drm->dev, "Couldn't initialize overlay plane\n"); return ERR_CAST(layer); } planes[i] = &layer->plane; } for (i = 0; i < mixer->cfg->ui_num; i++) { struct sun8i_ui_layer *layer; layer = sun8i_ui_layer_init_one(drm, mixer, i); if (IS_ERR(layer)) { dev_err(drm->dev, "Couldn't initialize %s plane\n", i ? "overlay" : "primary"); return ERR_CAST(layer); } planes[mixer->cfg->vi_num + i] = &layer->plane; } return planes; } static const struct sunxi_engine_ops sun8i_engine_ops = { .commit = sun8i_mixer_commit, .layers_init = sun8i_layers_init, }; static struct regmap_config sun8i_mixer_regmap_config = { .reg_bits = 32, .val_bits = 32, .reg_stride = 4, .max_register = 0xbfffc, /* guessed */ }; static int sun8i_mixer_of_get_id(struct device_node *node) { struct device_node *ep, *remote; struct of_endpoint of_ep; /* Output port is 1, and we want the first endpoint. */ ep = of_graph_get_endpoint_by_regs(node, 1, -1); if (!ep) return -EINVAL; remote = of_graph_get_remote_endpoint(ep); of_node_put(ep); if (!remote) return -EINVAL; of_graph_parse_endpoint(remote, &of_ep); of_node_put(remote); return of_ep.id; } static int sun8i_mixer_bind(struct device *dev, struct device *master, void *data) { struct platform_device *pdev = to_platform_device(dev); struct drm_device *drm = data; struct sun4i_drv *drv = drm->dev_private; struct sun8i_mixer *mixer; struct resource *res; void __iomem *regs; unsigned int base; int plane_cnt; int i, ret; /* * The mixer uses single 32-bit register to store memory * addresses, so that it cannot deal with 64-bit memory * addresses. * Restrict the DMA mask so that the mixer won't be * allocated some memory that is too high. */ ret = dma_set_mask(dev, DMA_BIT_MASK(32)); if (ret) { dev_err(dev, "Cannot do 32-bit DMA.\n"); return ret; } mixer = devm_kzalloc(dev, sizeof(*mixer), GFP_KERNEL); if (!mixer) return -ENOMEM; dev_set_drvdata(dev, mixer); mixer->engine.ops = &sun8i_engine_ops; mixer->engine.node = dev->of_node; /* * While this function can fail, we shouldn't do anything * if this happens. Some early DE2 DT entries don't provide * mixer id but work nevertheless because matching between * TCON and mixer is done by comparing node pointers (old * way) instead comparing ids. If this function fails and * id is needed, it will fail during id matching anyway. */ mixer->engine.id = sun8i_mixer_of_get_id(dev->of_node); mixer->cfg = of_device_get_match_data(dev); if (!mixer->cfg) return -EINVAL; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); regs = devm_ioremap_resource(dev, res); if (IS_ERR(regs)) return PTR_ERR(regs); mixer->engine.regs = devm_regmap_init_mmio(dev, regs, &sun8i_mixer_regmap_config); if (IS_ERR(mixer->engine.regs)) { dev_err(dev, "Couldn't create the mixer regmap\n"); return PTR_ERR(mixer->engine.regs); } mixer->reset = devm_reset_control_get(dev, NULL); if (IS_ERR(mixer->reset)) { dev_err(dev, "Couldn't get our reset line\n"); return PTR_ERR(mixer->reset); } ret = reset_control_deassert(mixer->reset); if (ret) { dev_err(dev, "Couldn't deassert our reset line\n"); return ret; } mixer->bus_clk = devm_clk_get(dev, "bus"); if (IS_ERR(mixer->bus_clk)) { dev_err(dev, "Couldn't get the mixer bus clock\n"); ret = PTR_ERR(mixer->bus_clk); goto err_assert_reset; } clk_prepare_enable(mixer->bus_clk); mixer->mod_clk = devm_clk_get(dev, "mod"); if (IS_ERR(mixer->mod_clk)) { dev_err(dev, "Couldn't get the mixer module clock\n"); ret = PTR_ERR(mixer->mod_clk); goto err_disable_bus_clk; } /* * It seems that we need to enforce that rate for whatever * reason for the mixer to be functional. Make sure it's the * case. */ if (mixer->cfg->mod_rate) clk_set_rate(mixer->mod_clk, mixer->cfg->mod_rate); clk_prepare_enable(mixer->mod_clk); list_add_tail(&mixer->engine.list, &drv->engine_list); base = sun8i_blender_base(mixer); /* Reset registers and disable unused sub-engines */ if (mixer->cfg->is_de3) { for (i = 0; i < DE3_MIXER_UNIT_SIZE; i += 4) regmap_write(mixer->engine.regs, i, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_FCE_EN, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_PEAK_EN, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_LCTI_EN, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_BLS_EN, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_FCC_EN, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_DNS_EN, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_DRC_EN, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_FMT_EN, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC0_EN, 0); regmap_write(mixer->engine.regs, SUN50I_MIXER_CDC1_EN, 0); } else { for (i = 0; i < DE2_MIXER_UNIT_SIZE; i += 4) regmap_write(mixer->engine.regs, i, 0); regmap_write(mixer->engine.regs, SUN8I_MIXER_FCE_EN, 0); regmap_write(mixer->engine.regs, SUN8I_MIXER_BWS_EN, 0); regmap_write(mixer->engine.regs, SUN8I_MIXER_LTI_EN, 0); regmap_write(mixer->engine.regs, SUN8I_MIXER_PEAK_EN, 0); regmap_write(mixer->engine.regs, SUN8I_MIXER_ASE_EN, 0); regmap_write(mixer->engine.regs, SUN8I_MIXER_FCC_EN, 0); regmap_write(mixer->engine.regs, SUN8I_MIXER_DCSC_EN, 0); } /* Enable the mixer */ regmap_write(mixer->engine.regs, SUN8I_MIXER_GLOBAL_CTL, SUN8I_MIXER_GLOBAL_CTL_RT_EN); /* Set background color to black */ regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_BKCOLOR(base), SUN8I_MIXER_BLEND_COLOR_BLACK); /* * Set fill color of bottom plane to black. Generally not needed * except when VI plane is at bottom (zpos = 0) and enabled. */ regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base), SUN8I_MIXER_BLEND_PIPE_CTL_FC_EN(0)); regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_ATTR_FCOLOR(base, 0), SUN8I_MIXER_BLEND_COLOR_BLACK); plane_cnt = mixer->cfg->vi_num + mixer->cfg->ui_num; for (i = 0; i < plane_cnt; i++) regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_MODE(base, i), SUN8I_MIXER_BLEND_MODE_DEF); regmap_update_bits(mixer->engine.regs, SUN8I_MIXER_BLEND_PIPE_CTL(base), SUN8I_MIXER_BLEND_PIPE_CTL_EN_MSK, 0); return 0; err_disable_bus_clk: clk_disable_unprepare(mixer->bus_clk); err_assert_reset: reset_control_assert(mixer->reset); return ret; } static void sun8i_mixer_unbind(struct device *dev, struct device *master, void *data) { struct sun8i_mixer *mixer = dev_get_drvdata(dev); list_del(&mixer->engine.list); clk_disable_unprepare(mixer->mod_clk); clk_disable_unprepare(mixer->bus_clk); reset_control_assert(mixer->reset); } static const struct component_ops sun8i_mixer_ops = { .bind = sun8i_mixer_bind, .unbind = sun8i_mixer_unbind, }; static int sun8i_mixer_probe(struct platform_device *pdev) { return component_add(&pdev->dev, &sun8i_mixer_ops); } static int sun8i_mixer_remove(struct platform_device *pdev) { component_del(&pdev->dev, &sun8i_mixer_ops); return 0; } static const struct sun8i_mixer_cfg sun8i_a83t_mixer0_cfg = { .ccsc = 0, .scaler_mask = 0xf, .scanline_yuv = 2048, .ui_num = 3, .vi_num = 1, }; static const struct sun8i_mixer_cfg sun8i_a83t_mixer1_cfg = { .ccsc = 1, .scaler_mask = 0x3, .scanline_yuv = 2048, .ui_num = 1, .vi_num = 1, }; static const struct sun8i_mixer_cfg sun8i_h3_mixer0_cfg = { .ccsc = 0, .mod_rate = 432000000, .scaler_mask = 0xf, .scanline_yuv = 2048, .ui_num = 3, .vi_num = 1, }; static const struct sun8i_mixer_cfg sun8i_r40_mixer0_cfg = { .ccsc = 0, .mod_rate = 297000000, .scaler_mask = 0xf, .scanline_yuv = 2048, .ui_num = 3, .vi_num = 1, }; static const struct sun8i_mixer_cfg sun8i_r40_mixer1_cfg = { .ccsc = 1, .mod_rate = 297000000, .scaler_mask = 0x3, .scanline_yuv = 2048, .ui_num = 1, .vi_num = 1, }; static const struct sun8i_mixer_cfg sun8i_v3s_mixer_cfg = { .vi_num = 2, .ui_num = 1, .scaler_mask = 0x3, .scanline_yuv = 2048, .ccsc = 0, .mod_rate = 150000000, }; static const struct sun8i_mixer_cfg sun50i_a64_mixer0_cfg = { .ccsc = 0, .mod_rate = 297000000, .scaler_mask = 0xf, .scanline_yuv = 4096, .ui_num = 3, .vi_num = 1, }; static const struct sun8i_mixer_cfg sun50i_a64_mixer1_cfg = { .ccsc = 1, .mod_rate = 297000000, .scaler_mask = 0x3, .scanline_yuv = 2048, .ui_num = 1, .vi_num = 1, }; static const struct sun8i_mixer_cfg sun50i_h6_mixer0_cfg = { .ccsc = 0, .is_de3 = true, .mod_rate = 600000000, .scaler_mask = 0xf, .scanline_yuv = 4096, .ui_num = 3, .vi_num = 1, }; static const struct of_device_id sun8i_mixer_of_table[] = { { .compatible = "allwinner,sun8i-a83t-de2-mixer-0", .data = &sun8i_a83t_mixer0_cfg, }, { .compatible = "allwinner,sun8i-a83t-de2-mixer-1", .data = &sun8i_a83t_mixer1_cfg, }, { .compatible = "allwinner,sun8i-h3-de2-mixer-0", .data = &sun8i_h3_mixer0_cfg, }, { .compatible = "allwinner,sun8i-r40-de2-mixer-0", .data = &sun8i_r40_mixer0_cfg, }, { .compatible = "allwinner,sun8i-r40-de2-mixer-1", .data = &sun8i_r40_mixer1_cfg, }, { .compatible = "allwinner,sun8i-v3s-de2-mixer", .data = &sun8i_v3s_mixer_cfg, }, { .compatible = "allwinner,sun50i-a64-de2-mixer-0", .data = &sun50i_a64_mixer0_cfg, }, { .compatible = "allwinner,sun50i-a64-de2-mixer-1", .data = &sun50i_a64_mixer1_cfg, }, { .compatible = "allwinner,sun50i-h6-de3-mixer-0", .data = &sun50i_h6_mixer0_cfg, }, { } }; MODULE_DEVICE_TABLE(of, sun8i_mixer_of_table); static struct platform_driver sun8i_mixer_platform_driver = { .probe = sun8i_mixer_probe, .remove = sun8i_mixer_remove, .driver = { .name = "sun8i-mixer", .of_match_table = sun8i_mixer_of_table, }, }; module_platform_driver(sun8i_mixer_platform_driver); MODULE_AUTHOR("Icenowy Zheng "); MODULE_DESCRIPTION("Allwinner DE2 Mixer driver"); MODULE_LICENSE("GPL");