Add plane funcs and helper funcs for ADE.
Signed-off-by: Xinliang Liu <xinliang.liu at linaro.org>
Signed-off-by: Xinwei Kong <kong.kongxinwei at hisilicon.com>
Signed-off-by: Andy Green <andy.green at linaro.org>
---
drivers/gpu/drm/hisilicon/hisi_drm_ade.c | 479 +++++++++++++++++++++++++++++++
1 file changed, 479 insertions(+)
diff --git a/drivers/gpu/drm/hisilicon/hisi_drm_ade.c
b/drivers/gpu/drm/hisilicon/hisi_drm_ade.c
index d157879..b0976c3 100644
--- a/drivers/gpu/drm/hisilicon/hisi_drm_ade.c
+++ b/drivers/gpu/drm/hisilicon/hisi_drm_ade.c
@@ -23,15 +23,22 @@
#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 "hisi_drm_drv.h"
#include "hisi_ade_reg.h"
#define FORCE_PIXEL_CLOCK_SAME_OR_HIGHER 0
+#define PRIMARY_CH (ADE_CH1)
#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;
void __iomem *media_base;
@@ -53,11 +60,75 @@ struct ade_crtc {
u64 use_mask;
};
+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_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_NOT_SUPPORT;
+}
+
static void ade_init(struct ade_hw_ctx *ctx)
{
void __iomem *base = ctx->base;
@@ -377,8 +448,416 @@ static int ade_crtc_init(struct drm_device *dev, struct
drm_crtc *crtc,
return 0;
}
+static void ade_rdma_set(struct ade_crtc *acrtc, struct drm_framebuffer *fb,
+ u32 ch, u32 y, u32 in_h, u32 fmt)
+{
+ u32 reg_ctrl, reg_addr, reg_size, reg_stride, reg_space, reg_en;
+ struct drm_gem_cma_object *obj = drm_fb_cma_get_gem_obj(fb, 0);
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ void __iomem *base = ctx->base;
+ 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,",
+ "addr=0x%x, fb:%dx%d, pixel_format=%d(%s)\n",
+ ch + 1, y, in_h, stride, (u32)obj->paddr,
+ 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(1, base + reg_en);
+
+ acrtc->use_mask |= BIT(ADE_CH_RDMA_BIT_OFST + ch);
+}
+
+static void ade_rdma_disable(struct ade_crtc *acrtc, u32 ch)
+{
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ void __iomem *base = ctx->base;
+ u32 reg_en;
+
+ /* get reg offset */
+ reg_en = RD_CH_EN(ch);
+
+ writel(0, base + reg_en);
+ acrtc->use_mask &= ~BIT(ADE_CH_RDMA_BIT_OFST + ch);
+}
+
+static void ade_clip_set(struct ade_crtc *acrtc, u32 ch, u32 fb_w, u32 x,
+ u32 in_w, u32 in_h)
+{
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ void __iomem *base = ctx->base;
+ 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));
+
+ acrtc->use_mask |= BIT(ADE_CLIP_BIT_OFST + ch);
+}
+
+static void ade_clip_disable(struct ade_crtc *acrtc, u32 ch)
+{
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ void __iomem *base = ctx->base;
+
+ writel(1, base + ADE_CLIP_DISABLE(ch));
+ acrtc->use_mask &= ~BIT(ADE_CLIP_BIT_OFST + ch);
+}
+
+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_overlay_set(struct ade_crtc *acrtc, u8 ch, u32 x0, u32 y0,
+ u32 in_w, u32 in_h, u32 fmt)
+{
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ void __iomem *base = ctx->base;
+ u8 ovly_ch = 0;
+ u8 x = ADE_OVLY2;
+ 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) << ADE_OVLY_CH_SEL_OFST | BIT(ADE_OVLY_CH_EN_OFST) |
+ alp_sel << ADE_OVLY_CH_ALP_SEL_OFST |
+ under_alp_sel << ADE_OVLY_CH_UNDER_ALP_SEL_OFST |
+ glb_alpha << ADE_OVLY_CH_ALP_GBL_OFST |
+ alp_mode << ADE_OVLY_CH_ALP_MODE_OFST;
+ DRM_DEBUG_DRIVER("ch%d_ctl=0x%X\n", ovly_ch + 1, val);
+ writel(val, base + ADE_OVLY_CH_CTL(ovly_ch));
+ val = (x + 1) << (ovly_ch * 4) | readl(base + ADE_OVLY_CTL);
+ DRM_DEBUG_DRIVER("ovly_ctl=0x%X\n", val);
+ writel(val, base + ADE_OVLY_CTL);
+
+ /* when primary is enable, indicate that it's ready to output. */
+ if (ch == PRIMARY_CH) {
+ val = (in_w - 1) << 16 | (in_h - 1);
+ writel(val, base + ADE_OVLY_OUTPUT_SIZE(x));
+ writel(1, base + ADE_OVLYX_CTL(x));
+ acrtc->use_mask |= BIT(ADE_OVLY_BIT_OFST + x);
+ }
+}
+
+static void ade_overlay_disable(struct ade_crtc *acrtc, u32 ch)
+{
+ struct ade_hw_ctx *ctx = acrtc->ctx;
+ void __iomem *base = ctx->base;
+ u8 ovly_ch = 0;
+ u32 val;
+
+ val = ~BIT(6) & readl(base + ADE_OVLY_CH_CTL(ovly_ch));
+ DRM_DEBUG_DRIVER("ch%d_ctl=0x%X\n", ovly_ch + 1, val);
+ writel(val, base + ADE_OVLY_CH_CTL(ovly_ch));
+ val = ~(0x3 << (ovly_ch * 4)) & readl(base + ADE_OVLY_CTL);
+
+ DRM_DEBUG_DRIVER("ovly_ctl=0x%X\n", val);
+ writel(val, base + ADE_OVLY_CTL);
+}
+
+/*
+ * Typicaly, a channel looks like: DMA-->clip-->scale-->ctrans-->overlay
+ */
+static void ade_update_channel(struct ade_plane *aplane, struct ade_crtc
*acrtc,
+ 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)
+{
+ u8 ch = aplane->ch;
+ u32 fmt = ade_get_format(fb->pixel_format);
+ 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(acrtc, fb, ch, src_y, in_h, fmt);
+
+ /* 2) clip setting */
+ ade_clip_set(acrtc, 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) overlay/compositor routing setting */
+ ade_overlay_set(acrtc, ch, crtc_x, crtc_y, in_w, in_h, fmt);
+
+ DRM_DEBUG_DRIVER("exit success.\n");
+}
+
+static void ade_disable_channel(struct ade_plane *aplane,
+ struct ade_crtc *acrtc)
+{
+ u32 ch = aplane->ch;
+
+ DRM_DEBUG_DRIVER("disable channel%d\n", ch + 1);
+
+ /*
+ * when primary is disable, power is down
+ * so no need to disable this channel.
+ */
+ if (ch == PRIMARY_CH)
+ return;
+
+ /* disable read DMA */
+ ade_rdma_disable(acrtc, ch);
+
+ /* disable clip */
+ ade_clip_disable(acrtc, ch);
+
+ /* disable overlay routing */
+ ade_overlay_disable(acrtc, ch);
+
+ DRM_DEBUG_DRIVER("exit success.\n");
+}
+
+static int ade_plane_prepare_fb(struct drm_plane *p,
+ struct drm_framebuffer *fb,
+ const struct drm_plane_state *new_state)
+{
+ DRM_DEBUG_DRIVER("enter.\n");
+ DRM_DEBUG_DRIVER("exit success.\n");
+ return 0;
+}
+
+static void ade_plane_cleanup_fb(struct drm_plane *plane,
+ struct drm_framebuffer *fb,
+ const struct drm_plane_state *old_state)
+{
+ DRM_DEBUG_DRIVER("enter.\n");
+ DRM_DEBUG_DRIVER("exit success.\n");
+}
+
+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;
+
+ if (!crtc || !fb)
+ return 0;
+
+ 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);
+ struct ade_crtc *acrtc;
+
+ if (!state->crtc)
+ return;
+
+ acrtc = to_ade_crtc(state->crtc);
+ ade_update_channel(aplane, acrtc, 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);
+ struct ade_crtc *acrtc;
+
+ if (!old_state->crtc)
+ return;
+ acrtc = to_ade_crtc(old_state->crtc);
+ ade_disable_channel(aplane, acrtc);
+}
+
+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_bind(struct device *dev, struct device *master, void *data)
{
+ struct ade_data *ade = dev_get_drvdata(dev);
+ struct ade_hw_ctx *ctx = &ade->ctx;
+ struct ade_crtc *acrtc = &ade->acrtc;
+ struct drm_device *drm_dev = (struct drm_device *)data;
+ struct ade_plane *aplane;
+ enum drm_plane_type type;
+ int ret;
+ int i;
+
+ /*
+ * 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(drm_dev, aplane, type);
+ if (ret)
+ return ret;
+ }
+
+ /* crtc init */
+ acrtc->ctx = ctx;
+ ret = ade_crtc_init(drm_dev, &acrtc->base,
+ &ade->aplane[PRIMARY_CH].base);
+ if (ret)
+ return ret;
+
return 0;
}
--
1.9.1
