diff options
Diffstat (limited to 'drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c')
| -rw-r--r-- | drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 1057 |
1 files changed, 1057 insertions, 0 deletions
diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c new file mode 100644 index 000000000000..971e48bd9f04 --- /dev/null +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c @@ -0,0 +1,1057 @@ +/* + * Hisilicon Hi6220 SoC ADE(Advanced Display Engine)'s crtc&plane driver + * + * Copyright (c) 2016 Linaro Limited. + * Copyright (c) 2014-2016 Hisilicon Limited. + * + * Author: + * Xinliang Liu <z.liuxinliang@hisilicon.com> + * Xinliang Liu <xinliang.liu@linaro.org> + * Xinwei Kong <kong.kongxinwei@hisilicon.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/bitops.h> +#include <linux/clk.h> +#include <video/display_timing.h> +#include <linux/mfd/syscon.h> +#include <linux/regmap.h> +#include <linux/reset.h> + +#include <drm/drmP.h> +#include <drm/drm_crtc.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_atomic.h> +#include <drm/drm_atomic_helper.h> +#include <drm/drm_plane_helper.h> +#include <drm/drm_gem_cma_helper.h> +#include <drm/drm_fb_cma_helper.h> + +#include "kirin_drm_drv.h" +#include "kirin_ade_reg.h" + +#define PRIMARY_CH ADE_CH1 /* primary plane */ +#define OUT_OVLY ADE_OVLY2 /* output overlay compositor */ +#define ADE_DEBUG 1 + +#define to_ade_crtc(crtc) \ + container_of(crtc, struct ade_crtc, base) + +#define to_ade_plane(plane) \ + container_of(plane, struct ade_plane, base) + +struct ade_hw_ctx { + void __iomem *base; + struct regmap *noc_regmap; + struct clk *ade_core_clk; + struct clk *media_noc_clk; + struct clk *ade_pix_clk; + struct reset_control *reset; + bool power_on; + int irq; +}; + +struct ade_crtc { + struct drm_crtc base; + struct ade_hw_ctx *ctx; + bool enable; + u32 out_format; +}; + +struct ade_plane { + struct drm_plane base; + void *ctx; + u8 ch; /* channel */ +}; + +struct ade_data { + struct ade_crtc acrtc; + struct ade_plane aplane[ADE_CH_NUM]; + struct ade_hw_ctx ctx; +}; + +/* ade-format info: */ +struct ade_format { + u32 pixel_format; + enum ade_fb_format ade_format; +}; + +static const struct ade_format ade_formats[] = { + /* 16bpp RGB: */ + { DRM_FORMAT_RGB565, ADE_RGB_565 }, + { DRM_FORMAT_BGR565, ADE_BGR_565 }, + /* 24bpp RGB: */ + { DRM_FORMAT_RGB888, ADE_RGB_888 }, + { DRM_FORMAT_BGR888, ADE_BGR_888 }, + /* 32bpp [A]RGB: */ + { DRM_FORMAT_XRGB8888, ADE_XRGB_8888 }, + { DRM_FORMAT_XBGR8888, ADE_XBGR_8888 }, + { DRM_FORMAT_RGBA8888, ADE_RGBA_8888 }, + { DRM_FORMAT_BGRA8888, ADE_BGRA_8888 }, + { DRM_FORMAT_ARGB8888, ADE_ARGB_8888 }, + { DRM_FORMAT_ABGR8888, ADE_ABGR_8888 }, +}; + +static const u32 channel_formats1[] = { + /* channel 1,2,3,4 */ + DRM_FORMAT_RGB565, DRM_FORMAT_BGR565, DRM_FORMAT_RGB888, + DRM_FORMAT_BGR888, DRM_FORMAT_XRGB8888, DRM_FORMAT_XBGR8888, + DRM_FORMAT_RGBA8888, DRM_FORMAT_BGRA8888, DRM_FORMAT_ARGB8888, + DRM_FORMAT_ABGR8888 +}; + +u32 ade_get_channel_formats(u8 ch, const u32 **formats) +{ + switch (ch) { + case ADE_CH1: + *formats = channel_formats1; + return ARRAY_SIZE(channel_formats1); + default: + DRM_ERROR("no this channel %d\n", ch); + *formats = NULL; + return 0; + } +} + +/* convert from fourcc format to ade format */ +static u32 ade_get_format(u32 pixel_format) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(ade_formats); i++) + if (ade_formats[i].pixel_format == pixel_format) + return ade_formats[i].ade_format; + + /* not found */ + DRM_ERROR("Not found pixel format!!fourcc_format= %d\n", + pixel_format); + return ADE_FORMAT_UNSUPPORT; +} + +static void ade_update_reload_bit(void __iomem *base, u32 bit_num, u32 val) +{ + u32 bit_ofst, reg_num; + + bit_ofst = bit_num % 32; + reg_num = bit_num / 32; + + ade_update_bits(base + ADE_RELOAD_DIS(reg_num), bit_ofst, + MASK(1), !!val); +} + +static u32 ade_read_reload_bit(void __iomem *base, u32 bit_num) +{ + u32 tmp, bit_ofst, reg_num; + + bit_ofst = bit_num % 32; + reg_num = bit_num / 32; + + tmp = readl(base + ADE_RELOAD_DIS(reg_num)); + return !!(BIT(bit_ofst) & tmp); +} + +static void ade_init(struct ade_hw_ctx *ctx) +{ + void __iomem *base = ctx->base; + + /* enable clk gate */ + ade_update_bits(base + ADE_CTRL1, AUTO_CLK_GATE_EN_OFST, + AUTO_CLK_GATE_EN, ADE_ENABLE); + /* clear overlay */ + writel(0, base + ADE_OVLY1_TRANS_CFG); + writel(0, base + ADE_OVLY_CTL); + writel(0, base + ADE_OVLYX_CTL(OUT_OVLY)); + /* clear reset and reload regs */ + writel(MASK(32), base + ADE_SOFT_RST_SEL(0)); + writel(MASK(32), base + ADE_SOFT_RST_SEL(1)); + writel(MASK(32), base + ADE_RELOAD_DIS(0)); + writel(MASK(32), base + ADE_RELOAD_DIS(1)); + /* + * for video mode, all the ade registers should + * become effective at frame end. + */ + ade_update_bits(base + ADE_CTRL, FRM_END_START_OFST, + FRM_END_START_MASK, REG_EFFECTIVE_IN_ADEEN_FRMEND); +} + +static void ade_set_pix_clk(struct ade_hw_ctx *ctx, + struct drm_display_mode *mode, + struct drm_display_mode *adj_mode) +{ + u32 clk_Hz = mode->clock * 1000; + int ret; + + /* + * Success should be guaranteed in mode_valid call back, + * so failure shouldn't happen here + */ + ret = clk_set_rate(ctx->ade_pix_clk, clk_Hz); + if (ret) + DRM_ERROR("failed to set pixel clk %dHz (%d)\n", clk_Hz, ret); + adj_mode->clock = clk_get_rate(ctx->ade_pix_clk) / 1000; +} + +static void ade_ldi_set_mode(struct ade_crtc *acrtc, + struct drm_display_mode *mode, + struct drm_display_mode *adj_mode) +{ + struct ade_hw_ctx *ctx = acrtc->ctx; + void __iomem *base = ctx->base; + u32 width = mode->hdisplay; + u32 height = mode->vdisplay; + u32 hfp, hbp, hsw, vfp, vbp, vsw; + u32 plr_flags; + + plr_flags = (mode->flags & DRM_MODE_FLAG_NVSYNC) ? FLAG_NVSYNC : 0; + plr_flags |= (mode->flags & DRM_MODE_FLAG_NHSYNC) ? FLAG_NHSYNC : 0; + hfp = mode->hsync_start - mode->hdisplay; + hbp = mode->htotal - mode->hsync_end; + hsw = mode->hsync_end - mode->hsync_start; + vfp = mode->vsync_start - mode->vdisplay; + vbp = mode->vtotal - mode->vsync_end; + vsw = mode->vsync_end - mode->vsync_start; + if (vsw > 15) { + DRM_DEBUG_DRIVER("vsw exceeded 15\n"); + vsw = 15; + } + + writel((hbp << HBP_OFST) | hfp, base + LDI_HRZ_CTRL0); + /* the configured value is actual value - 1 */ + writel(hsw - 1, base + LDI_HRZ_CTRL1); + writel((vbp << VBP_OFST) | vfp, base + LDI_VRT_CTRL0); + /* the configured value is actual value - 1 */ + writel(vsw - 1, base + LDI_VRT_CTRL1); + /* the configured value is actual value - 1 */ + writel(((height - 1) << VSIZE_OFST) | (width - 1), + base + LDI_DSP_SIZE); + writel(plr_flags, base + LDI_PLR_CTRL); + + /* set overlay compositor output size */ + writel(((width - 1) << OUTPUT_XSIZE_OFST) | (height - 1), + base + ADE_OVLY_OUTPUT_SIZE(OUT_OVLY)); + + /* ctran6 setting */ + writel(CTRAN_BYPASS_ON, base + ADE_CTRAN_DIS(ADE_CTRAN6)); + /* the configured value is actual value - 1 */ + writel(width * height - 1, base + ADE_CTRAN_IMAGE_SIZE(ADE_CTRAN6)); + ade_update_reload_bit(base, CTRAN_OFST + ADE_CTRAN6, 0); + + ade_set_pix_clk(ctx, mode, adj_mode); + + DRM_DEBUG_DRIVER("set mode: %dx%d\n", width, height); +} + +static int ade_power_up(struct ade_hw_ctx *ctx) +{ + int ret; + + ret = clk_prepare_enable(ctx->media_noc_clk); + if (ret) { + DRM_ERROR("failed to enable media_noc_clk (%d)\n", ret); + return ret; + } + + ret = reset_control_deassert(ctx->reset); + if (ret) { + DRM_ERROR("failed to deassert reset\n"); + return ret; + } + + ret = clk_prepare_enable(ctx->ade_core_clk); + if (ret) { + DRM_ERROR("failed to enable ade_core_clk (%d)\n", ret); + return ret; + } + + ade_init(ctx); + ctx->power_on = true; + return 0; +} + +static void ade_power_down(struct ade_hw_ctx *ctx) +{ + void __iomem *base = ctx->base; + + writel(ADE_DISABLE, base + LDI_CTRL); + /* dsi pixel off */ + writel(DSI_PCLK_OFF, base + LDI_HDMI_DSI_GT); + + clk_disable_unprepare(ctx->ade_core_clk); + reset_control_assert(ctx->reset); + clk_disable_unprepare(ctx->media_noc_clk); + ctx->power_on = false; +} + +static void ade_set_medianoc_qos(struct ade_crtc *acrtc) +{ + struct ade_hw_ctx *ctx = acrtc->ctx; + struct regmap *map = ctx->noc_regmap; + + regmap_update_bits(map, ADE0_QOSGENERATOR_MODE, + QOSGENERATOR_MODE_MASK, BYPASS_MODE); + regmap_update_bits(map, ADE0_QOSGENERATOR_EXTCONTROL, + SOCKET_QOS_EN, SOCKET_QOS_EN); + + regmap_update_bits(map, ADE1_QOSGENERATOR_MODE, + QOSGENERATOR_MODE_MASK, BYPASS_MODE); + regmap_update_bits(map, ADE1_QOSGENERATOR_EXTCONTROL, + SOCKET_QOS_EN, SOCKET_QOS_EN); +} + +static int ade_enable_vblank(struct drm_device *dev, unsigned int pipe) +{ + struct kirin_drm_private *priv = dev->dev_private; + struct ade_crtc *acrtc = to_ade_crtc(priv->crtc[pipe]); + struct ade_hw_ctx *ctx = acrtc->ctx; + void __iomem *base = ctx->base; + + if (!ctx->power_on) + (void)ade_power_up(ctx); + + ade_update_bits(base + LDI_INT_EN, FRAME_END_INT_EN_OFST, + MASK(1), 1); + + return 0; +} + +static void ade_disable_vblank(struct drm_device *dev, unsigned int pipe) +{ + struct kirin_drm_private *priv = dev->dev_private; + struct ade_crtc *acrtc = to_ade_crtc(priv->crtc[pipe]); + struct ade_hw_ctx *ctx = acrtc->ctx; + void __iomem *base = ctx->base; + + if (!ctx->power_on) { + DRM_ERROR("power is down! vblank disable fail\n"); + return; + } + + ade_update_bits(base + LDI_INT_EN, FRAME_END_INT_EN_OFST, + MASK(1), 0); +} + +static irqreturn_t ade_irq_handler(int irq, void *data) +{ + struct ade_crtc *acrtc = data; + struct ade_hw_ctx *ctx = acrtc->ctx; + struct drm_crtc *crtc = &acrtc->base; + void __iomem *base = ctx->base; + u32 status; + + status = readl(base + LDI_MSK_INT); + DRM_DEBUG_VBL("LDI IRQ: status=0x%X\n", status); + + /* vblank irq */ + if (status & BIT(FRAME_END_INT_EN_OFST)) { + ade_update_bits(base + LDI_INT_CLR, FRAME_END_INT_EN_OFST, + MASK(1), 1); + drm_crtc_handle_vblank(crtc); + } + + return IRQ_HANDLED; +} + +static void ade_display_enable(struct ade_crtc *acrtc) +{ + struct ade_hw_ctx *ctx = acrtc->ctx; + void __iomem *base = ctx->base; + u32 out_fmt = acrtc->out_format; + + /* enable output overlay compositor */ + writel(ADE_ENABLE, base + ADE_OVLYX_CTL(OUT_OVLY)); + ade_update_reload_bit(base, OVLY_OFST + OUT_OVLY, 0); + + /* display source setting */ + writel(DISP_SRC_OVLY2, base + ADE_DISP_SRC_CFG); + + /* enable ade */ + writel(ADE_ENABLE, base + ADE_EN); + /* enable ldi */ + writel(NORMAL_MODE, base + LDI_WORK_MODE); + writel((out_fmt << BPP_OFST) | DATA_GATE_EN | LDI_EN, + base + LDI_CTRL); + /* dsi pixel on */ + writel(DSI_PCLK_ON, base + LDI_HDMI_DSI_GT); +} + +#if ADE_DEBUG +static void ade_rdma_dump_regs(void __iomem *base, u32 ch) +{ + u32 reg_ctrl, reg_addr, reg_size, reg_stride, reg_space, reg_en; + u32 val; + + reg_ctrl = RD_CH_CTRL(ch); + reg_addr = RD_CH_ADDR(ch); + reg_size = RD_CH_SIZE(ch); + reg_stride = RD_CH_STRIDE(ch); + reg_space = RD_CH_SPACE(ch); + reg_en = RD_CH_EN(ch); + + val = ade_read_reload_bit(base, RDMA_OFST + ch); + DRM_DEBUG_DRIVER("[rdma%d]: reload(%d)\n", ch + 1, val); + val = readl(base + reg_ctrl); + DRM_DEBUG_DRIVER("[rdma%d]: reg_ctrl(0x%08x)\n", ch + 1, val); + val = readl(base + reg_addr); + DRM_DEBUG_DRIVER("[rdma%d]: reg_addr(0x%08x)\n", ch + 1, val); + val = readl(base + reg_size); + DRM_DEBUG_DRIVER("[rdma%d]: reg_size(0x%08x)\n", ch + 1, val); + val = readl(base + reg_stride); + DRM_DEBUG_DRIVER("[rdma%d]: reg_stride(0x%08x)\n", ch + 1, val); + val = readl(base + reg_space); + DRM_DEBUG_DRIVER("[rdma%d]: reg_space(0x%08x)\n", ch + 1, val); + val = readl(base + reg_en); + DRM_DEBUG_DRIVER("[rdma%d]: reg_en(0x%08x)\n", ch + 1, val); +} + +static void ade_clip_dump_regs(void __iomem *base, u32 ch) +{ + u32 val; + + val = ade_read_reload_bit(base, CLIP_OFST + ch); + DRM_DEBUG_DRIVER("[clip%d]: reload(%d)\n", ch + 1, val); + val = readl(base + ADE_CLIP_DISABLE(ch)); + DRM_DEBUG_DRIVER("[clip%d]: reg_clip_disable(0x%08x)\n", ch + 1, val); + val = readl(base + ADE_CLIP_SIZE0(ch)); + DRM_DEBUG_DRIVER("[clip%d]: reg_clip_size0(0x%08x)\n", ch + 1, val); + val = readl(base + ADE_CLIP_SIZE1(ch)); + DRM_DEBUG_DRIVER("[clip%d]: reg_clip_size1(0x%08x)\n", ch + 1, val); +} + +static void ade_compositor_routing_dump_regs(void __iomem *base, u32 ch) +{ + u8 ovly_ch = 0; /* TODO: Only primary plane now */ + u32 val; + + val = readl(base + ADE_OVLY_CH_XY0(ovly_ch)); + DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_xy0(0x%08x)\n", ovly_ch, val); + val = readl(base + ADE_OVLY_CH_XY1(ovly_ch)); + DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_xy1(0x%08x)\n", ovly_ch, val); + val = readl(base + ADE_OVLY_CH_CTL(ovly_ch)); + DRM_DEBUG_DRIVER("[overlay ch%d]: reg_ch_ctl(0x%08x)\n", ovly_ch, val); +} + +static void ade_dump_overlay_compositor_regs(void __iomem *base, u32 comp) +{ + u32 val; + + val = ade_read_reload_bit(base, OVLY_OFST + comp); + DRM_DEBUG_DRIVER("[overlay%d]: reload(%d)\n", comp + 1, val); + writel(ADE_ENABLE, base + ADE_OVLYX_CTL(comp)); + DRM_DEBUG_DRIVER("[overlay%d]: reg_ctl(0x%08x)\n", comp + 1, val); + val = readl(base + ADE_OVLY_CTL); + DRM_DEBUG_DRIVER("ovly_ctl(0x%08x)\n", val); +} + +static void ade_dump_regs(void __iomem *base) +{ + u32 i; + + /* dump channel regs */ + for (i = 0; i < ADE_CH_NUM; i++) { + /* dump rdma regs */ + ade_rdma_dump_regs(base, i); + + /* dump clip regs */ + ade_clip_dump_regs(base, i); + + /* dump compositor routing regs */ + ade_compositor_routing_dump_regs(base, i); + } + + /* dump overlay compositor regs */ + ade_dump_overlay_compositor_regs(base, OUT_OVLY); +} +#else +static void ade_dump_regs(void __iomem *base) { } +#endif + +static void ade_crtc_enable(struct drm_crtc *crtc) +{ + struct ade_crtc *acrtc = to_ade_crtc(crtc); + struct ade_hw_ctx *ctx = acrtc->ctx; + int ret; + + if (acrtc->enable) + return; + + if (!ctx->power_on) { + ret = ade_power_up(ctx); + if (ret) + return; + } + + ade_set_medianoc_qos(acrtc); + ade_display_enable(acrtc); + ade_dump_regs(ctx->base); + acrtc->enable = true; +} + +static void ade_crtc_disable(struct drm_crtc *crtc) +{ + struct ade_crtc *acrtc = to_ade_crtc(crtc); + struct ade_hw_ctx *ctx = acrtc->ctx; + + if (!acrtc->enable) + return; + + ade_power_down(ctx); + acrtc->enable = false; +} + +static int ade_crtc_atomic_check(struct drm_crtc *crtc, + struct drm_crtc_state *state) +{ + /* do nothing */ + return 0; +} + +static void ade_crtc_mode_set_nofb(struct drm_crtc *crtc) +{ + struct ade_crtc *acrtc = to_ade_crtc(crtc); + struct ade_hw_ctx *ctx = acrtc->ctx; + struct drm_display_mode *mode = &crtc->state->mode; + struct drm_display_mode *adj_mode = &crtc->state->adjusted_mode; + + if (!ctx->power_on) + (void)ade_power_up(ctx); + ade_ldi_set_mode(acrtc, mode, adj_mode); +} + +static void ade_crtc_atomic_begin(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) +{ + struct ade_crtc *acrtc = to_ade_crtc(crtc); + struct ade_hw_ctx *ctx = acrtc->ctx; + + if (!ctx->power_on) + (void)ade_power_up(ctx); +} + +static void ade_crtc_atomic_flush(struct drm_crtc *crtc, + struct drm_crtc_state *old_state) + +{ + struct ade_crtc *acrtc = to_ade_crtc(crtc); + struct ade_hw_ctx *ctx = acrtc->ctx; + void __iomem *base = ctx->base; + + /* only crtc is enabled regs take effect */ + if (acrtc->enable) { + ade_dump_regs(base); + /* flush ade registers */ + writel(ADE_ENABLE, base + ADE_EN); + } +} + +static const struct drm_crtc_helper_funcs ade_crtc_helper_funcs = { + .enable = ade_crtc_enable, + .disable = ade_crtc_disable, + .atomic_check = ade_crtc_atomic_check, + .mode_set_nofb = ade_crtc_mode_set_nofb, + .atomic_begin = ade_crtc_atomic_begin, + .atomic_flush = ade_crtc_atomic_flush, +}; + +static const struct drm_crtc_funcs ade_crtc_funcs = { + .destroy = drm_crtc_cleanup, + .set_config = drm_atomic_helper_set_config, + .page_flip = drm_atomic_helper_page_flip, + .reset = drm_atomic_helper_crtc_reset, + .set_property = drm_atomic_helper_crtc_set_property, + .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, +}; + +static int ade_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, + struct drm_plane *plane) +{ + struct kirin_drm_private *priv = dev->dev_private; + struct device_node *port; + int ret; + + /* set crtc port so that + * drm_of_find_possible_crtcs call works + */ + port = of_get_child_by_name(dev->dev->of_node, "port"); + if (!port) { + DRM_ERROR("no port node found in %s\n", + dev->dev->of_node->full_name); + return -EINVAL; + } + of_node_put(port); + crtc->port = port; + + ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL, + &ade_crtc_funcs); + if (ret) { + DRM_ERROR("failed to init crtc.\n"); + return ret; + } + + drm_crtc_helper_add(crtc, &ade_crtc_helper_funcs); + priv->crtc[drm_crtc_index(crtc)] = crtc; + + return 0; +} + +static void ade_rdma_set(void __iomem *base, struct drm_framebuffer *fb, + u32 ch, u32 y, u32 in_h, u32 fmt) +{ + struct drm_gem_cma_object *obj = drm_fb_cma_get_gem_obj(fb, 0); + u32 reg_ctrl, reg_addr, reg_size, reg_stride, reg_space, reg_en; + u32 stride = fb->pitches[0]; + u32 addr = (u32)obj->paddr + y * stride; + + DRM_DEBUG_DRIVER("rdma%d: (y=%d, height=%d), stride=%d, paddr=0x%x\n", + ch + 1, y, in_h, stride, (u32)obj->paddr); + DRM_DEBUG_DRIVER("addr=0x%x, fb:%dx%d, pixel_format=%d(%s)\n", + addr, fb->width, fb->height, fmt, + drm_get_format_name(fb->pixel_format)); + + /* get reg offset */ + reg_ctrl = RD_CH_CTRL(ch); + reg_addr = RD_CH_ADDR(ch); + reg_size = RD_CH_SIZE(ch); + reg_stride = RD_CH_STRIDE(ch); + reg_space = RD_CH_SPACE(ch); + reg_en = RD_CH_EN(ch); + + /* + * TODO: set rotation + */ + writel((fmt << 16) & 0x1f0000, base + reg_ctrl); + writel(addr, base + reg_addr); + writel((in_h << 16) | stride, base + reg_size); + writel(stride, base + reg_stride); + writel(in_h * stride, base + reg_space); + writel(ADE_ENABLE, base + reg_en); + ade_update_reload_bit(base, RDMA_OFST + ch, 0); +} + +static void ade_rdma_disable(void __iomem *base, u32 ch) +{ + u32 reg_en; + + /* get reg offset */ + reg_en = RD_CH_EN(ch); + writel(0, base + reg_en); + ade_update_reload_bit(base, RDMA_OFST + ch, 1); +} + +static void ade_clip_set(void __iomem *base, u32 ch, u32 fb_w, u32 x, + u32 in_w, u32 in_h) +{ + u32 disable_val; + u32 clip_left; + u32 clip_right; + + /* + * clip width, no need to clip height + */ + if (fb_w == in_w) { /* bypass */ + disable_val = 1; + clip_left = 0; + clip_right = 0; + } else { + disable_val = 0; + clip_left = x; + clip_right = fb_w - (x + in_w) - 1; + } + + DRM_DEBUG_DRIVER("clip%d: clip_left=%d, clip_right=%d\n", + ch + 1, clip_left, clip_right); + + writel(disable_val, base + ADE_CLIP_DISABLE(ch)); + writel((fb_w - 1) << 16 | (in_h - 1), base + ADE_CLIP_SIZE0(ch)); + writel(clip_left << 16 | clip_right, base + ADE_CLIP_SIZE1(ch)); + ade_update_reload_bit(base, CLIP_OFST + ch, 0); +} + +static void ade_clip_disable(void __iomem *base, u32 ch) +{ + writel(1, base + ADE_CLIP_DISABLE(ch)); + ade_update_reload_bit(base, CLIP_OFST + ch, 1); +} + +static bool has_Alpha_channel(int format) +{ + switch (format) { + case ADE_ARGB_8888: + case ADE_ABGR_8888: + case ADE_RGBA_8888: + case ADE_BGRA_8888: + return true; + default: + return false; + } +} + +static void ade_get_blending_params(u32 fmt, u8 glb_alpha, u8 *alp_mode, + u8 *alp_sel, u8 *under_alp_sel) +{ + bool has_alpha = has_Alpha_channel(fmt); + + /* + * get alp_mode + */ + if (has_alpha && glb_alpha < 255) + *alp_mode = ADE_ALP_PIXEL_AND_GLB; + else if (has_alpha) + *alp_mode = ADE_ALP_PIXEL; + else + *alp_mode = ADE_ALP_GLOBAL; + + /* + * get alp sel + */ + *alp_sel = ADE_ALP_MUL_COEFF_3; /* 1 */ + *under_alp_sel = ADE_ALP_MUL_COEFF_2; /* 0 */ +} + +static void ade_compositor_routing_set(void __iomem *base, u8 ch, + u32 x0, u32 y0, + u32 in_w, u32 in_h, u32 fmt) +{ + u8 ovly_ch = 0; /* TODO: This is the zpos, only one plane now */ + u8 glb_alpha = 255; + u32 x1 = x0 + in_w - 1; + u32 y1 = y0 + in_h - 1; + u32 val; + u8 alp_sel; + u8 under_alp_sel; + u8 alp_mode; + + ade_get_blending_params(fmt, glb_alpha, &alp_mode, &alp_sel, + &under_alp_sel); + + /* overlay routing setting + */ + writel(x0 << 16 | y0, base + ADE_OVLY_CH_XY0(ovly_ch)); + writel(x1 << 16 | y1, base + ADE_OVLY_CH_XY1(ovly_ch)); + val = (ch + 1) << CH_SEL_OFST | BIT(CH_EN_OFST) | + alp_sel << CH_ALP_SEL_OFST | + under_alp_sel << CH_UNDER_ALP_SEL_OFST | + glb_alpha << CH_ALP_GBL_OFST | + alp_mode << CH_ALP_MODE_OFST; + writel(val, base + ADE_OVLY_CH_CTL(ovly_ch)); + /* connect this plane/channel to overlay2 compositor */ + ade_update_bits(base + ADE_OVLY_CTL, CH_OVLY_SEL_OFST(ovly_ch), + CH_OVLY_SEL_MASK, CH_OVLY_SEL_VAL(OUT_OVLY)); +} + +static void ade_compositor_routing_disable(void __iomem *base, u32 ch) +{ + u8 ovly_ch = 0; /* TODO: Only primary plane now */ + + /* disable this plane/channel */ + ade_update_bits(base + ADE_OVLY_CH_CTL(ovly_ch), CH_EN_OFST, + MASK(1), 0); + /* dis-connect this plane/channel of overlay2 compositor */ + ade_update_bits(base + ADE_OVLY_CTL, CH_OVLY_SEL_OFST(ovly_ch), + CH_OVLY_SEL_MASK, 0); +} + +/* + * Typicaly, a channel looks like: DMA-->clip-->scale-->ctrans-->compositor + */ +static void ade_update_channel(struct ade_plane *aplane, + struct drm_framebuffer *fb, int crtc_x, + int crtc_y, unsigned int crtc_w, + unsigned int crtc_h, u32 src_x, + u32 src_y, u32 src_w, u32 src_h) +{ + struct ade_hw_ctx *ctx = aplane->ctx; + void __iomem *base = ctx->base; + u32 fmt = ade_get_format(fb->pixel_format); + u32 ch = aplane->ch; + u32 in_w; + u32 in_h; + + DRM_DEBUG_DRIVER("channel%d: src:(%d, %d)-%dx%d, crtc:(%d, %d)-%dx%d", + ch + 1, src_x, src_y, src_w, src_h, + crtc_x, crtc_y, crtc_w, crtc_h); + + /* 1) DMA setting */ + in_w = src_w; + in_h = src_h; + ade_rdma_set(base, fb, ch, src_y, in_h, fmt); + + /* 2) clip setting */ + ade_clip_set(base, ch, fb->width, src_x, in_w, in_h); + + /* 3) TODO: scale setting for overlay planes */ + + /* 4) TODO: ctran/csc setting for overlay planes */ + + /* 5) compositor routing setting */ + ade_compositor_routing_set(base, ch, crtc_x, crtc_y, in_w, in_h, fmt); +} + +static void ade_disable_channel(struct ade_plane *aplane) +{ + struct ade_hw_ctx *ctx = aplane->ctx; + void __iomem *base = ctx->base; + u32 ch = aplane->ch; + + DRM_DEBUG_DRIVER("disable channel%d\n", ch + 1); + + /* disable read DMA */ + ade_rdma_disable(base, ch); + + /* disable clip */ + ade_clip_disable(base, ch); + + /* disable compositor routing */ + ade_compositor_routing_disable(base, ch); +} + +static int ade_plane_prepare_fb(struct drm_plane *plane, + const struct drm_plane_state *new_state) +{ + /* do nothing */ + return 0; +} + +static void ade_plane_cleanup_fb(struct drm_plane *plane, + const struct drm_plane_state *old_state) +{ + /* do nothing */ +} + +static int ade_plane_atomic_check(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct drm_framebuffer *fb = state->fb; + struct drm_crtc *crtc = state->crtc; + struct drm_crtc_state *crtc_state; + u32 src_x = state->src_x >> 16; + u32 src_y = state->src_y >> 16; + u32 src_w = state->src_w >> 16; + u32 src_h = state->src_h >> 16; + int crtc_x = state->crtc_x; + int crtc_y = state->crtc_y; + u32 crtc_w = state->crtc_w; + u32 crtc_h = state->crtc_h; + u32 fmt; + + if (!crtc || !fb) + return 0; + + fmt = ade_get_format(fb->pixel_format); + if (fmt == ADE_FORMAT_UNSUPPORT) + return -EINVAL; + + crtc_state = drm_atomic_get_crtc_state(state->state, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + + if (src_w != crtc_w || src_h != crtc_h) { + DRM_ERROR("Scale not support!!!\n"); + return -EINVAL; + } + + if (src_x + src_w > fb->width || + src_y + src_h > fb->height) + return -EINVAL; + + if (crtc_x < 0 || crtc_y < 0) + return -EINVAL; + + if (crtc_x + crtc_w > crtc_state->adjusted_mode.hdisplay || + crtc_y + crtc_h > crtc_state->adjusted_mode.vdisplay) + return -EINVAL; + + return 0; +} + +static void ade_plane_atomic_update(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct drm_plane_state *state = plane->state; + struct ade_plane *aplane = to_ade_plane(plane); + + ade_update_channel(aplane, state->fb, state->crtc_x, state->crtc_y, + state->crtc_w, state->crtc_h, + state->src_x >> 16, state->src_y >> 16, + state->src_w >> 16, state->src_h >> 16); +} + +static void ade_plane_atomic_disable(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct ade_plane *aplane = to_ade_plane(plane); + + ade_disable_channel(aplane); +} + +static const struct drm_plane_helper_funcs ade_plane_helper_funcs = { + .prepare_fb = ade_plane_prepare_fb, + .cleanup_fb = ade_plane_cleanup_fb, + .atomic_check = ade_plane_atomic_check, + .atomic_update = ade_plane_atomic_update, + .atomic_disable = ade_plane_atomic_disable, +}; + +static struct drm_plane_funcs ade_plane_funcs = { + .update_plane = drm_atomic_helper_update_plane, + .disable_plane = drm_atomic_helper_disable_plane, + .set_property = drm_atomic_helper_plane_set_property, + .destroy = drm_plane_cleanup, + .reset = drm_atomic_helper_plane_reset, + .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, +}; + +static int ade_plane_init(struct drm_device *dev, struct ade_plane *aplane, + enum drm_plane_type type) +{ + const u32 *fmts; + u32 fmts_cnt; + int ret = 0; + + /* get properties */ + fmts_cnt = ade_get_channel_formats(aplane->ch, &fmts); + if (ret) + return ret; + + ret = drm_universal_plane_init(dev, &aplane->base, 1, &ade_plane_funcs, + fmts, fmts_cnt, type); + if (ret) { + DRM_ERROR("fail to init plane, ch=%d\n", aplane->ch); + return ret; + } + + drm_plane_helper_add(&aplane->base, &ade_plane_helper_funcs); + + return 0; +} + +static int ade_dts_parse(struct platform_device *pdev, struct ade_hw_ctx *ctx) +{ + struct resource *res; + struct device *dev = &pdev->dev; + struct device_node *np = pdev->dev.of_node; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + ctx->base = devm_ioremap_resource(dev, res); + if (IS_ERR(ctx->base)) { + DRM_ERROR("failed to remap ade io base\n"); + return PTR_ERR(ctx->base); + } + + ctx->reset = devm_reset_control_get(dev, NULL); + if (IS_ERR(ctx->reset)) + return PTR_ERR(ctx->reset); + + ctx->noc_regmap = + syscon_regmap_lookup_by_phandle(np, "hisilicon,noc-syscon"); + if (IS_ERR(ctx->noc_regmap)) { + DRM_ERROR("failed to get noc regmap\n"); + return PTR_ERR(ctx->noc_regmap); + } + + ctx->irq = platform_get_irq(pdev, 0); + if (ctx->irq < 0) { + DRM_ERROR("failed to get irq\n"); + return -ENODEV; + } + + ctx->ade_core_clk = devm_clk_get(dev, "clk_ade_core"); + if (!ctx->ade_core_clk) { + DRM_ERROR("failed to parse clk ADE_CORE\n"); + return -ENODEV; + } + + ctx->media_noc_clk = devm_clk_get(dev, "clk_codec_jpeg"); + if (!ctx->media_noc_clk) { + DRM_ERROR("failed to parse clk CODEC_JPEG\n"); + return -ENODEV; + } + + ctx->ade_pix_clk = devm_clk_get(dev, "clk_ade_pix"); + if (!ctx->ade_pix_clk) { + DRM_ERROR("failed to parse clk ADE_PIX\n"); + return -ENODEV; + } + + return 0; +} + +static int ade_drm_init(struct drm_device *dev) +{ + struct platform_device *pdev = dev->platformdev; + struct ade_data *ade; + struct ade_hw_ctx *ctx; + struct ade_crtc *acrtc; + struct ade_plane *aplane; + enum drm_plane_type type; + int ret; + int i; + + ade = devm_kzalloc(dev->dev, sizeof(*ade), GFP_KERNEL); + if (!ade) { + DRM_ERROR("failed to alloc ade_data\n"); + return -ENOMEM; + } + platform_set_drvdata(pdev, ade); + + ctx = &ade->ctx; + acrtc = &ade->acrtc; + acrtc->ctx = ctx; + acrtc->out_format = LDI_OUT_RGB_888; + + ret = ade_dts_parse(pdev, ctx); + if (ret) + return ret; + + /* + * plane init + * TODO: Now only support primary plane, overlay planes + * need to do. + */ + for (i = 0; i < ADE_CH_NUM; i++) { + aplane = &ade->aplane[i]; + aplane->ch = i; + aplane->ctx = ctx; + type = i == PRIMARY_CH ? DRM_PLANE_TYPE_PRIMARY : + DRM_PLANE_TYPE_OVERLAY; + + ret = ade_plane_init(dev, aplane, type); + if (ret) + return ret; + } + + /* crtc init */ + ret = ade_crtc_init(dev, &acrtc->base, &ade->aplane[PRIMARY_CH].base); + if (ret) + return ret; + + /* vblank irq init */ + ret = devm_request_irq(dev->dev, ctx->irq, ade_irq_handler, + IRQF_SHARED, dev->driver->name, acrtc); + if (ret) + return ret; + dev->driver->get_vblank_counter = drm_vblank_no_hw_counter; + dev->driver->enable_vblank = ade_enable_vblank; + dev->driver->disable_vblank = ade_disable_vblank; + + return 0; +} + +static void ade_drm_cleanup(struct drm_device *dev) +{ + struct platform_device *pdev = dev->platformdev; + struct ade_data *ade = platform_get_drvdata(pdev); + struct drm_crtc *crtc = &ade->acrtc.base; + + drm_crtc_cleanup(crtc); +} + +const struct kirin_dc_ops ade_dc_ops = { + .init = ade_drm_init, + .cleanup = ade_drm_cleanup +}; |