diff options
Diffstat (limited to 'drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c')
| -rw-r--r-- | drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 856 |
1 files changed, 856 insertions, 0 deletions
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c new file mode 100644 index 00000000000..c5892dcfd74 --- /dev/null +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c @@ -0,0 +1,856 @@ +/* + * Copyright (C) 2014 Free Electrons + * Copyright (C) 2014 Atmel + * + * Author: Boris BREZILLON <boris.brezillon@free-electrons.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. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "atmel_hlcdc_dc.h" + +#define SUBPIXEL_MASK 0xffff + +static uint32_t rgb_formats[] = { + DRM_FORMAT_XRGB4444, + DRM_FORMAT_ARGB4444, + DRM_FORMAT_RGBA4444, + DRM_FORMAT_ARGB1555, + DRM_FORMAT_RGB565, + DRM_FORMAT_RGB888, + DRM_FORMAT_XRGB8888, + DRM_FORMAT_ARGB8888, + DRM_FORMAT_RGBA8888, +}; + +struct atmel_hlcdc_formats atmel_hlcdc_plane_rgb_formats = { + .formats = rgb_formats, + .nformats = ARRAY_SIZE(rgb_formats), +}; + +static uint32_t rgb_and_yuv_formats[] = { + DRM_FORMAT_XRGB4444, + DRM_FORMAT_ARGB4444, + DRM_FORMAT_RGBA4444, + DRM_FORMAT_ARGB1555, + DRM_FORMAT_RGB565, + DRM_FORMAT_RGB888, + DRM_FORMAT_XRGB8888, + DRM_FORMAT_ARGB8888, + DRM_FORMAT_RGBA8888, + DRM_FORMAT_AYUV, + DRM_FORMAT_YUYV, + DRM_FORMAT_UYVY, + DRM_FORMAT_YVYU, + DRM_FORMAT_VYUY, + DRM_FORMAT_NV21, + DRM_FORMAT_NV61, + DRM_FORMAT_YUV422, + DRM_FORMAT_YUV420, +}; + +struct atmel_hlcdc_formats atmel_hlcdc_plane_rgb_and_yuv_formats = { + .formats = rgb_and_yuv_formats, + .nformats = ARRAY_SIZE(rgb_and_yuv_formats), +}; + +static int atmel_hlcdc_format_to_plane_mode(u32 format, u32 *mode) +{ + switch (format) { + case DRM_FORMAT_XRGB4444: + *mode = ATMEL_HLCDC_XRGB4444_MODE; + break; + case DRM_FORMAT_ARGB4444: + *mode = ATMEL_HLCDC_ARGB4444_MODE; + break; + case DRM_FORMAT_RGBA4444: + *mode = ATMEL_HLCDC_RGBA4444_MODE; + break; + case DRM_FORMAT_RGB565: + *mode = ATMEL_HLCDC_RGB565_MODE; + break; + case DRM_FORMAT_RGB888: + *mode = ATMEL_HLCDC_RGB888_MODE; + break; + case DRM_FORMAT_ARGB1555: + *mode = ATMEL_HLCDC_ARGB1555_MODE; + break; + case DRM_FORMAT_XRGB8888: + *mode = ATMEL_HLCDC_XRGB8888_MODE; + break; + case DRM_FORMAT_ARGB8888: + *mode = ATMEL_HLCDC_ARGB8888_MODE; + break; + case DRM_FORMAT_RGBA8888: + *mode = ATMEL_HLCDC_RGBA8888_MODE; + break; + case DRM_FORMAT_AYUV: + *mode = ATMEL_HLCDC_AYUV_MODE; + break; + case DRM_FORMAT_YUYV: + *mode = ATMEL_HLCDC_YUYV_MODE; + break; + case DRM_FORMAT_UYVY: + *mode = ATMEL_HLCDC_UYVY_MODE; + break; + case DRM_FORMAT_YVYU: + *mode = ATMEL_HLCDC_YVYU_MODE; + break; + case DRM_FORMAT_VYUY: + *mode = ATMEL_HLCDC_VYUY_MODE; + break; + case DRM_FORMAT_NV21: + *mode = ATMEL_HLCDC_NV21_MODE; + break; + case DRM_FORMAT_NV61: + *mode = ATMEL_HLCDC_NV61_MODE; + break; + case DRM_FORMAT_YUV420: + *mode = ATMEL_HLCDC_YUV420_MODE; + break; + case DRM_FORMAT_YUV422: + *mode = ATMEL_HLCDC_YUV422_MODE; + break; + default: + return -ENOTSUPP; + } + + return 0; +} + +static bool atmel_hlcdc_format_embedds_alpha(u32 format) +{ + int i; + + for (i = 0; i < sizeof(format); i++) { + char tmp = (format >> (8 * i)) & 0xff; + + if (tmp == 'A') + return true; + } + + return false; +} + +static u32 heo_downscaling_xcoef[] = { + 0x11343311, + 0x000000f7, + 0x1635300c, + 0x000000f9, + 0x1b362c08, + 0x000000fb, + 0x1f372804, + 0x000000fe, + 0x24382400, + 0x00000000, + 0x28371ffe, + 0x00000004, + 0x2c361bfb, + 0x00000008, + 0x303516f9, + 0x0000000c, +}; + +static u32 heo_downscaling_ycoef[] = { + 0x00123737, + 0x00173732, + 0x001b382d, + 0x001f3928, + 0x00243824, + 0x0028391f, + 0x002d381b, + 0x00323717, +}; + +static u32 heo_upscaling_xcoef[] = { + 0xf74949f7, + 0x00000000, + 0xf55f33fb, + 0x000000fe, + 0xf5701efe, + 0x000000ff, + 0xf87c0dff, + 0x00000000, + 0x00800000, + 0x00000000, + 0x0d7cf800, + 0x000000ff, + 0x1e70f5ff, + 0x000000fe, + 0x335ff5fe, + 0x000000fb, +}; + +static u32 heo_upscaling_ycoef[] = { + 0x00004040, + 0x00075920, + 0x00056f0c, + 0x00027b03, + 0x00008000, + 0x00037b02, + 0x000c6f05, + 0x00205907, +}; + +static void +atmel_hlcdc_plane_update_pos_and_size(struct atmel_hlcdc_plane *plane, + struct atmel_hlcdc_plane_update_req *req) +{ + const struct atmel_hlcdc_layer_cfg_layout *layout = + &plane->layer.desc->layout; + + if (layout->size) + atmel_hlcdc_layer_update_cfg(&plane->layer, + layout->size, + 0xffffffff, + (req->crtc_w - 1) | + ((req->crtc_h - 1) << 16)); + + if (layout->memsize) + atmel_hlcdc_layer_update_cfg(&plane->layer, + layout->memsize, + 0xffffffff, + (req->src_w - 1) | + ((req->src_h - 1) << 16)); + + if (layout->pos) + atmel_hlcdc_layer_update_cfg(&plane->layer, + layout->pos, + 0xffffffff, + req->crtc_x | + (req->crtc_y << 16)); + + /* TODO: rework the rescaling part */ + if (req->crtc_w != req->src_w || req->crtc_h != req->src_h) { + u32 factor_reg = 0; + + if (req->crtc_w != req->src_w) { + int i; + u32 factor; + u32 *coeff_tab = heo_upscaling_xcoef; + u32 max_memsize; + + if (req->crtc_w < req->src_w) + coeff_tab = heo_downscaling_xcoef; + for (i = 0; i < ARRAY_SIZE(heo_upscaling_xcoef); i++) + atmel_hlcdc_layer_update_cfg(&plane->layer, + 17 + i, + 0xffffffff, + coeff_tab[i]); + factor = ((8 * 256 * req->src_w) - (256 * 4)) / + req->crtc_w; + factor++; + max_memsize = ((factor * req->crtc_w) + (256 * 4)) / + 2048; + if (max_memsize > req->src_w) + factor--; + factor_reg |= factor | 0x80000000; + } + + if (req->crtc_h != req->src_h) { + int i; + u32 factor; + u32 *coeff_tab = heo_upscaling_ycoef; + u32 max_memsize; + + if (req->crtc_w < req->src_w) + coeff_tab = heo_downscaling_ycoef; + for (i = 0; i < ARRAY_SIZE(heo_upscaling_ycoef); i++) + atmel_hlcdc_layer_update_cfg(&plane->layer, + 33 + i, + 0xffffffff, + coeff_tab[i]); + factor = ((8 * 256 * req->src_w) - (256 * 4)) / + req->crtc_w; + factor++; + max_memsize = ((factor * req->crtc_w) + (256 * 4)) / + 2048; + if (max_memsize > req->src_w) + factor--; + factor_reg |= (factor << 16) | 0x80000000; + } + + atmel_hlcdc_layer_update_cfg(&plane->layer, 13, 0xffffffff, + factor_reg); + } +} + +static void +atmel_hlcdc_plane_update_general_settings(struct atmel_hlcdc_plane *plane, + struct atmel_hlcdc_plane_update_req *req) +{ + const struct atmel_hlcdc_layer_cfg_layout *layout = + &plane->layer.desc->layout; + unsigned int cfg = ATMEL_HLCDC_LAYER_DMA; + + if (plane->base.type != DRM_PLANE_TYPE_PRIMARY) { + cfg |= ATMEL_HLCDC_LAYER_OVR | ATMEL_HLCDC_LAYER_ITER2BL | + ATMEL_HLCDC_LAYER_ITER; + + if (atmel_hlcdc_format_embedds_alpha(req->fb->pixel_format)) + cfg |= ATMEL_HLCDC_LAYER_LAEN; + else + cfg |= ATMEL_HLCDC_LAYER_GAEN; + } + + atmel_hlcdc_layer_update_cfg(&plane->layer, + ATMEL_HLCDC_LAYER_DMA_CFG_ID, + ATMEL_HLCDC_LAYER_DMA_BLEN_MASK, + ATMEL_HLCDC_LAYER_DMA_BLEN_INCR16); + + atmel_hlcdc_layer_update_cfg(&plane->layer, layout->general_config, + ATMEL_HLCDC_LAYER_ITER2BL | + ATMEL_HLCDC_LAYER_ITER | + ATMEL_HLCDC_LAYER_GAEN | + ATMEL_HLCDC_LAYER_LAEN | + ATMEL_HLCDC_LAYER_OVR | + ATMEL_HLCDC_LAYER_DMA, cfg); +} + +static void atmel_hlcdc_plane_update_format(struct atmel_hlcdc_plane *plane, + struct atmel_hlcdc_plane_update_req *req) +{ + u32 cfg; + int ret; + + ret = atmel_hlcdc_format_to_plane_mode(req->fb->pixel_format, &cfg); + if (ret) + return; + + if ((req->fb->pixel_format == DRM_FORMAT_YUV422 || + req->fb->pixel_format == DRM_FORMAT_NV61) && + (plane->rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270)))) + cfg |= ATMEL_HLCDC_YUV422ROT; + + atmel_hlcdc_layer_update_cfg(&plane->layer, + ATMEL_HLCDC_LAYER_FORMAT_CFG_ID, + 0xffffffff, + cfg); + + /* + * Rotation optimization is not working on RGB888 (rotation is still + * working but without any optimization). + */ + if (req->fb->pixel_format == DRM_FORMAT_RGB888) + cfg = ATMEL_HLCDC_LAYER_DMA_ROTDIS; + else + cfg = 0; + + atmel_hlcdc_layer_update_cfg(&plane->layer, + ATMEL_HLCDC_LAYER_DMA_CFG_ID, + ATMEL_HLCDC_LAYER_DMA_ROTDIS, cfg); +} + +static void atmel_hlcdc_plane_update_buffers(struct atmel_hlcdc_plane *plane, + struct atmel_hlcdc_plane_update_req *req) +{ + struct atmel_hlcdc_layer *layer = &plane->layer; + const struct atmel_hlcdc_layer_cfg_layout *layout = + &layer->desc->layout; + int i; + + atmel_hlcdc_layer_update_set_fb(&plane->layer, req->fb, req->offsets); + + for (i = 0; i < req->nplanes; i++) { + if (layout->xstride[i]) { + atmel_hlcdc_layer_update_cfg(&plane->layer, + layout->xstride[i], + 0xffffffff, + req->xstride[i]); + } + + if (layout->pstride[i]) { + atmel_hlcdc_layer_update_cfg(&plane->layer, + layout->pstride[i], + 0xffffffff, + req->pstride[i]); + } + } +} + +static int atmel_hlcdc_plane_check_update_req(struct drm_plane *p, + struct atmel_hlcdc_plane_update_req *req, + const struct drm_display_mode *mode) +{ + struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p); + const struct atmel_hlcdc_layer_cfg_layout *layout = + &plane->layer.desc->layout; + + if (!layout->size && + (mode->hdisplay != req->crtc_w || + mode->vdisplay != req->crtc_h)) + return -EINVAL; + + if (plane->layer.desc->max_height && + req->crtc_h > plane->layer.desc->max_height) + return -EINVAL; + + if (plane->layer.desc->max_width && + req->crtc_w > plane->layer.desc->max_width) + return -EINVAL; + + if ((req->crtc_h != req->src_h || req->crtc_w != req->src_w) && + (!layout->memsize || + atmel_hlcdc_format_embedds_alpha(req->fb->pixel_format))) + return -EINVAL; + + if (req->crtc_x < 0 || req->crtc_y < 0) + return -EINVAL; + + if (req->crtc_w + req->crtc_x > mode->hdisplay || + req->crtc_h + req->crtc_y > mode->vdisplay) + return -EINVAL; + + return 0; +} + +int atmel_hlcdc_plane_prepare_update_req(struct drm_plane *p, + struct atmel_hlcdc_plane_update_req *req, + const struct drm_display_mode *mode) +{ + struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p); + unsigned int patched_crtc_w; + unsigned int patched_crtc_h; + unsigned int patched_src_w; + unsigned int patched_src_h; + unsigned int tmp; + int x_offset = 0; + int y_offset = 0; + int hsub = 1; + int vsub = 1; + int i; + + if ((req->src_x | req->src_y | req->src_w | req->src_h) & + SUBPIXEL_MASK) + return -EINVAL; + + req->src_x >>= 16; + req->src_y >>= 16; + req->src_w >>= 16; + req->src_h >>= 16; + + req->nplanes = drm_format_num_planes(req->fb->pixel_format); + if (req->nplanes > ATMEL_HLCDC_MAX_PLANES) + return -EINVAL; + + /* + * Swap width and size in case of 90 or 270 degrees rotation + */ + if (plane->rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) { + tmp = req->crtc_w; + req->crtc_w = req->crtc_h; + req->crtc_h = tmp; + tmp = req->src_w; + req->src_w = req->src_h; + req->src_h = tmp; + } + + if (req->crtc_x + req->crtc_w > mode->hdisplay) + patched_crtc_w = mode->hdisplay - req->crtc_x; + else + patched_crtc_w = req->crtc_w; + + if (req->crtc_x < 0) { + patched_crtc_w += req->crtc_x; + x_offset = -req->crtc_x; + req->crtc_x = 0; + } + + if (req->crtc_y + req->crtc_h > mode->vdisplay) + patched_crtc_h = mode->vdisplay - req->crtc_y; + else + patched_crtc_h = req->crtc_h; + + if (req->crtc_y < 0) { + patched_crtc_h += req->crtc_y; + y_offset = -req->crtc_y; + req->crtc_y = 0; + } + + patched_src_w = DIV_ROUND_CLOSEST(patched_crtc_w * req->src_w, + req->crtc_w); + patched_src_h = DIV_ROUND_CLOSEST(patched_crtc_h * req->src_h, + req->crtc_h); + + hsub = drm_format_horz_chroma_subsampling(req->fb->pixel_format); + vsub = drm_format_vert_chroma_subsampling(req->fb->pixel_format); + + for (i = 0; i < req->nplanes; i++) { + unsigned int offset = 0; + int xdiv = i ? hsub : 1; + int ydiv = i ? vsub : 1; + + req->bpp[i] = drm_format_plane_cpp(req->fb->pixel_format, i); + if (!req->bpp[i]) + return -EINVAL; + + switch (plane->rotation & 0xf) { + case BIT(DRM_ROTATE_90): + offset = ((y_offset + req->src_y + patched_src_w - 1) / + ydiv) * req->fb->pitches[i]; + offset += ((x_offset + req->src_x) / xdiv) * + req->bpp[i]; + req->xstride[i] = ((patched_src_w - 1) / ydiv) * + req->fb->pitches[i]; + req->pstride[i] = -req->fb->pitches[i] - req->bpp[i]; + break; + case BIT(DRM_ROTATE_180): + offset = ((y_offset + req->src_y + patched_src_h - 1) / + ydiv) * req->fb->pitches[i]; + offset += ((x_offset + req->src_x + patched_src_w - 1) / + xdiv) * req->bpp[i]; + req->xstride[i] = ((((patched_src_w - 1) / xdiv) - 1) * + req->bpp[i]) - req->fb->pitches[i]; + req->pstride[i] = -2 * req->bpp[i]; + break; + case BIT(DRM_ROTATE_270): + offset = ((y_offset + req->src_y) / ydiv) * + req->fb->pitches[i]; + offset += ((x_offset + req->src_x + patched_src_h - 1) / + xdiv) * req->bpp[i]; + req->xstride[i] = -(((patched_src_w - 1) / ydiv) * + req->fb->pitches[i]) - + (2 * req->bpp[i]); + req->pstride[i] = req->fb->pitches[i] - req->bpp[i]; + break; + case BIT(DRM_ROTATE_0): + default: + offset = ((y_offset + req->src_y) / ydiv) * + req->fb->pitches[i]; + offset += ((x_offset + req->src_x) / xdiv) * + req->bpp[i]; + req->xstride[i] = req->fb->pitches[i] - + ((patched_src_w / xdiv) * + req->bpp[i]); + req->pstride[i] = 0; + break; + } + + req->offsets[i] = offset + req->fb->offsets[i]; + } + + req->src_w = patched_src_w; + req->src_h = patched_src_h; + req->crtc_w = patched_crtc_w; + req->crtc_h = patched_crtc_h; + + return atmel_hlcdc_plane_check_update_req(p, req, mode); +} + +int atmel_hlcdc_plane_apply_update_req(struct drm_plane *p, + struct atmel_hlcdc_plane_update_req *req) +{ + struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p); + int ret; + + ret = atmel_hlcdc_layer_update_start(&plane->layer); + if (ret) + return ret; + + atmel_hlcdc_plane_update_pos_and_size(plane, req); + atmel_hlcdc_plane_update_general_settings(plane, req); + atmel_hlcdc_plane_update_format(plane, req); + atmel_hlcdc_plane_update_buffers(plane, req); + + atmel_hlcdc_layer_update_commit(&plane->layer); + + return 0; +} + +int atmel_hlcdc_plane_update_with_mode(struct drm_plane *p, + struct drm_crtc *crtc, + struct drm_framebuffer *fb, + int crtc_x, int crtc_y, + unsigned int crtc_w, + unsigned int crtc_h, + uint32_t src_x, uint32_t src_y, + uint32_t src_w, uint32_t src_h, + const struct drm_display_mode *mode) +{ + struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p); + struct atmel_hlcdc_plane_update_req req; + int ret = 0; + + memset(&req, 0, sizeof(req)); + req.crtc_x = crtc_x; + req.crtc_y = crtc_y; + req.crtc_w = crtc_w; + req.crtc_h = crtc_h; + req.src_x = src_x; + req.src_y = src_y; + req.src_w = src_w; + req.src_h = src_h; + req.fb = fb; + + ret = atmel_hlcdc_plane_prepare_update_req(&plane->base, &req, mode); + if (ret) + return ret; + + if (!req.crtc_h || !req.crtc_w) + return atmel_hlcdc_layer_disable(&plane->layer); + + return atmel_hlcdc_plane_apply_update_req(&plane->base, &req); +} + +static int atmel_hlcdc_plane_update(struct drm_plane *p, + struct drm_crtc *crtc, + struct drm_framebuffer *fb, + int crtc_x, int crtc_y, + unsigned int crtc_w, unsigned int crtc_h, + uint32_t src_x, uint32_t src_y, + uint32_t src_w, uint32_t src_h) +{ + return atmel_hlcdc_plane_update_with_mode(p, crtc, fb, crtc_x, crtc_y, + crtc_w, crtc_h, src_x, src_y, + src_w, src_h, &crtc->hwmode); +} + +static int atmel_hlcdc_plane_disable(struct drm_plane *p) +{ + struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p); + + return atmel_hlcdc_layer_disable(&plane->layer); +} + +static void atmel_hlcdc_plane_destroy(struct drm_plane *p) +{ + struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p); + + if (plane->base.fb) + drm_framebuffer_unreference(plane->base.fb); + + atmel_hlcdc_layer_cleanup(p->dev, &plane->layer); + + drm_plane_cleanup(p); + devm_kfree(p->dev->dev, plane); +} + +static int atmel_hlcdc_plane_set_alpha(struct atmel_hlcdc_plane *plane, + u8 alpha) +{ + atmel_hlcdc_layer_update_start(&plane->layer); + atmel_hlcdc_layer_update_cfg(&plane->layer, + plane->layer.desc->layout.general_config, + ATMEL_HLCDC_LAYER_GA_MASK, + alpha << ATMEL_HLCDC_LAYER_GA_SHIFT); + atmel_hlcdc_layer_update_commit(&plane->layer); + + return 0; +} + +static int atmel_hlcdc_plane_set_rotation(struct atmel_hlcdc_plane *plane, + unsigned int rotation) +{ + plane->rotation = rotation; + + return 0; +} + +static int atmel_hlcdc_plane_set_property(struct drm_plane *p, + struct drm_property *property, + uint64_t value) +{ + struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p); + struct atmel_hlcdc_plane_properties *props = plane->properties; + + if (property == props->alpha) + atmel_hlcdc_plane_set_alpha(plane, value); + else if (property == props->rotation) + atmel_hlcdc_plane_set_rotation(plane, value); + else + return -EINVAL; + + return 0; +} + +static void atmel_hlcdc_plane_init_properties(struct atmel_hlcdc_plane *plane, + const struct atmel_hlcdc_layer_desc *desc, + struct atmel_hlcdc_plane_properties *props) +{ + struct regmap *regmap = plane->layer.hlcdc->regmap; + + if (desc->type == ATMEL_HLCDC_OVERLAY_LAYER || + desc->type == ATMEL_HLCDC_CURSOR_LAYER) { + drm_object_attach_property(&plane->base.base, + props->alpha, 255); + + /* Set default alpha value */ + regmap_update_bits(regmap, + desc->regs_offset + + ATMEL_HLCDC_LAYER_GENERAL_CFG(&plane->layer), + ATMEL_HLCDC_LAYER_GA_MASK, + ATMEL_HLCDC_LAYER_GA_MASK); + } + + if (desc->layout.xstride && desc->layout.pstride) + drm_object_attach_property(&plane->base.base, + props->rotation, + BIT(DRM_ROTATE_0)); + + if (desc->layout.csc) { + /* + * TODO: decare a "yuv-to-rgb-conv-factors" property to let + * userspace modify these factors (using a BLOB property ?). + */ + regmap_write(regmap, + desc->regs_offset + + ATMEL_HLCDC_LAYER_CSC_CFG(&plane->layer, 0), + 0x4c900091); + regmap_write(regmap, + desc->regs_offset + + ATMEL_HLCDC_LAYER_CSC_CFG(&plane->layer, 1), + 0x7a5f5090); + regmap_write(regmap, + desc->regs_offset + + ATMEL_HLCDC_LAYER_CSC_CFG(&plane->layer, 2), + 0x40040890); + } +} + +static struct drm_plane_funcs layer_plane_funcs = { + .update_plane = atmel_hlcdc_plane_update, + .disable_plane = atmel_hlcdc_plane_disable, + .set_property = atmel_hlcdc_plane_set_property, + .destroy = atmel_hlcdc_plane_destroy, +}; + +static struct atmel_hlcdc_plane * +atmel_hlcdc_plane_create(struct drm_device *dev, + const struct atmel_hlcdc_layer_desc *desc, + struct atmel_hlcdc_plane_properties *props) +{ + struct atmel_hlcdc_plane *plane; + enum drm_plane_type type; + int ret; + + plane = devm_kzalloc(dev->dev, sizeof(*plane), GFP_KERNEL); + if (!plane) + return ERR_PTR(-ENOMEM); + + ret = atmel_hlcdc_layer_init(dev, &plane->layer, desc); + if (ret) + return ERR_PTR(ret); + + if (desc->type == ATMEL_HLCDC_BASE_LAYER) + type = DRM_PLANE_TYPE_PRIMARY; + else if (desc->type == ATMEL_HLCDC_CURSOR_LAYER) + type = DRM_PLANE_TYPE_CURSOR; + else + type = DRM_PLANE_TYPE_OVERLAY; + + ret = drm_universal_plane_init(dev, &plane->base, 0, + &layer_plane_funcs, + desc->formats->formats, + desc->formats->nformats, type); + if (ret) + return ERR_PTR(ret); + + /* Set default property values*/ + atmel_hlcdc_plane_init_properties(plane, desc, props); + + return plane; +} + +static struct atmel_hlcdc_plane_properties * +atmel_hlcdc_plane_create_properties(struct drm_device *dev) +{ + struct atmel_hlcdc_plane_properties *props; + + props = devm_kzalloc(dev->dev, sizeof(*props), GFP_KERNEL); + if (!props) + return ERR_PTR(-ENOMEM); + + props->alpha = drm_property_create_range(dev, 0, "alpha", 0, 255); + if (!props->alpha) + return ERR_PTR(-ENOMEM); + + props->rotation = drm_mode_create_rotation_property(dev, + BIT(DRM_ROTATE_0) | + BIT(DRM_ROTATE_90) | + BIT(DRM_ROTATE_180) | + BIT(DRM_ROTATE_270)); + if (!props->rotation) + return ERR_PTR(-ENOMEM); + + return props; +} + +struct atmel_hlcdc_planes * +atmel_hlcdc_create_planes(struct drm_device *dev) +{ + struct atmel_hlcdc_dc *dc = dev->dev_private; + struct atmel_hlcdc_plane_properties *props; + struct atmel_hlcdc_planes *planes; + const struct atmel_hlcdc_layer_desc *descs = dc->desc->layers; + int nlayers = dc->desc->nlayers; + int i; + + planes = devm_kzalloc(dev->dev, sizeof(*planes), GFP_KERNEL); + if (!planes) + return ERR_PTR(-ENOMEM); + + for (i = 0; i < nlayers; i++) { + if (descs[i].type == ATMEL_HLCDC_OVERLAY_LAYER) + planes->noverlays++; + } + + if (planes->noverlays) { + planes->overlays = devm_kzalloc(dev->dev, + planes->noverlays * + sizeof(*planes->overlays), + GFP_KERNEL); + if (!planes->overlays) + return ERR_PTR(-ENOMEM); + } + + props = atmel_hlcdc_plane_create_properties(dev); + if (IS_ERR(props)) + return ERR_CAST(props); + + planes->noverlays = 0; + for (i = 0; i < nlayers; i++) { + struct atmel_hlcdc_plane *plane; + + if (descs[i].type == ATMEL_HLCDC_PP_LAYER) + continue; + + plane = atmel_hlcdc_plane_create(dev, &descs[i], props); + if (IS_ERR(plane)) + return ERR_CAST(plane); + + plane->properties = props; + + switch (descs[i].type) { + case ATMEL_HLCDC_BASE_LAYER: + if (planes->primary) + return ERR_PTR(-EINVAL); + planes->primary = plane; + break; + + case ATMEL_HLCDC_OVERLAY_LAYER: + planes->overlays[planes->noverlays++] = plane; + break; + + case ATMEL_HLCDC_CURSOR_LAYER: + if (planes->cursor) + return ERR_PTR(-EINVAL); + planes->cursor = plane; + break; + + default: + break; + } + } + + return planes; +} |