diff options
Diffstat (limited to 'drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h')
| -rw-r--r-- | drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h new file mode 100644 index 000000000000..7bc96af3397a --- /dev/null +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h @@ -0,0 +1,213 @@ +/* + * Copyright (C) 2014 Traphandler + * Copyright (C) 2014 Free Electrons + * Copyright (C) 2014 Atmel + * + * Author: Jean-Jacques Hiblot <jjhiblot@traphandler.com> + * 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/>. + */ + +#ifndef DRM_ATMEL_HLCDC_H +#define DRM_ATMEL_HLCDC_H + +#include <linux/clk.h> +#include <linux/irqdomain.h> +#include <linux/pwm.h> + +#include <drm/drm_crtc.h> +#include <drm/drm_crtc_helper.h> +#include <drm/drm_fb_cma_helper.h> +#include <drm/drm_gem_cma_helper.h> +#include <drm/drm_panel.h> +#include <drm/drmP.h> + +#include "atmel_hlcdc_layer.h" + +#define ATMEL_HLCDC_MAX_LAYERS 5 + +/** + * Atmel HLCDC Display Controller description structure. + * + * This structure describe the HLCDC IP capabilities and depends on the + * HLCDC IP version (or Atmel SoC family). + * + * @min_width: minimum width supported by the Display Controller + * @min_height: minimum height supported by the Display Controller + * @max_width: maximum width supported by the Display Controller + * @max_height: maximum height supported by the Display Controller + * @layers: a layer description table describing available layers + * @nlayers: layer description table size + */ +struct atmel_hlcdc_dc_desc { + int min_width; + int min_height; + int max_width; + int max_height; + const struct atmel_hlcdc_layer_desc *layers; + int nlayers; +}; + +/** + * Atmel HLCDC Plane properties. + * + * This structure stores plane property definitions. + * + * @alpha: alpha blending (or transparency) property + * @rotation: rotation property + */ +struct atmel_hlcdc_plane_properties { + struct drm_property *alpha; + struct drm_property *rotation; +}; + +/** + * Atmel HLCDC Plane. + * + * @base: base DRM plane structure + * @layer: HLCDC layer structure + * @properties: pointer to the property definitions structure + * @rotation: current rotation status + */ +struct atmel_hlcdc_plane { + struct drm_plane base; + struct atmel_hlcdc_layer layer; + struct atmel_hlcdc_plane_properties *properties; + unsigned int rotation; +}; + +static inline struct atmel_hlcdc_plane * +drm_plane_to_atmel_hlcdc_plane(struct drm_plane *p) +{ + return container_of(p, struct atmel_hlcdc_plane, base); +} + +static inline struct atmel_hlcdc_plane * +atmel_hlcdc_layer_to_plane(struct atmel_hlcdc_layer *l) +{ + return container_of(l, struct atmel_hlcdc_plane, layer); +} + +/** + * Atmel HLCDC Plane update request structure. + * + * @crtc_x: x position of the plane relative to the CRTC + * @crtc_y: y position of the plane relative to the CRTC + * @crtc_w: visible width of the plane + * @crtc_h: visible height of the plane + * @src_x: x buffer position + * @src_y: y buffer position + * @src_w: buffer width + * @src_h: buffer height + * @fb: framebuffer object object + * @bpp: bytes per pixel deduced from pixel_format + * @offsets: offsets to apply to the GEM buffers + * @xstride: value to add to the pixel pointer between each line + * @pstride: value to add to the pixel pointer between each pixel + * @nplanes: number of planes (deduced from pixel_format) + */ +struct atmel_hlcdc_plane_update_req { + 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; + struct drm_framebuffer *fb; + + /* These fields are private and should not be touched */ + int bpp[ATMEL_HLCDC_MAX_PLANES]; + unsigned int offsets[ATMEL_HLCDC_MAX_PLANES]; + int xstride[ATMEL_HLCDC_MAX_PLANES]; + int pstride[ATMEL_HLCDC_MAX_PLANES]; + int nplanes; +}; + +/** + * Atmel HLCDC Planes. + * + * This structure stores the instantiated HLCDC Planes and can be accessed by + * the HLCDC Display Controller or the HLCDC CRTC. + * + * @primary: primary plane + * @cursor: hardware cursor plane + * @overlays: overlay plane table + * @noverlays: number of overlay planes + */ +struct atmel_hlcdc_planes { + struct atmel_hlcdc_plane *primary; + struct atmel_hlcdc_plane *cursor; + struct atmel_hlcdc_plane **overlays; + int noverlays; +}; + +/** + * Atmel HLCDC Display Controller. + * + * @desc: HLCDC Display Controller description + * @hlcdc: pointer to the atmel_hlcdc structure provided by the MFD device + * @fbdev: framebuffer device attached to the Display Controller + * @crtc: CRTC provided by the display controller + * @planes: instantiated planes + * @layers: active HLCDC layer + * @wq: display controller workqueue + */ +struct atmel_hlcdc_dc { + const struct atmel_hlcdc_dc_desc *desc; + struct atmel_hlcdc *hlcdc; + struct drm_fbdev_cma *fbdev; + struct drm_crtc *crtc; + struct atmel_hlcdc_planes *planes; + struct atmel_hlcdc_layer *layers[ATMEL_HLCDC_MAX_LAYERS]; + struct workqueue_struct *wq; +}; + +extern struct atmel_hlcdc_formats atmel_hlcdc_plane_rgb_formats; +extern struct atmel_hlcdc_formats atmel_hlcdc_plane_rgb_and_yuv_formats; + +int atmel_hlcdc_dc_mode_valid(struct atmel_hlcdc_dc *dc, + struct drm_display_mode *mode); + +struct atmel_hlcdc_planes * +atmel_hlcdc_create_planes(struct drm_device *dev); + +int atmel_hlcdc_plane_prepare_update_req(struct drm_plane *p, + struct atmel_hlcdc_plane_update_req *req, + const struct drm_display_mode *mode); + +int atmel_hlcdc_plane_apply_update_req(struct drm_plane *p, + struct atmel_hlcdc_plane_update_req *req); + +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); + +void atmel_hlcdc_crtc_irq(struct drm_crtc *c); + +void atmel_hlcdc_crtc_cancel_page_flip(struct drm_crtc *crtc, + struct drm_file *file); + +int atmel_hlcdc_crtc_create(struct drm_device *dev); + +int atmel_hlcdc_create_outputs(struct drm_device *dev); + +#endif /* DRM_ATMEL_HLCDC_H */ |