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Diffstat (limited to 'drivers/gpu/drm/sti/sti_layer.h')
| -rw-r--r-- | drivers/gpu/drm/sti/sti_layer.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/gpu/drm/sti/sti_layer.h b/drivers/gpu/drm/sti/sti_layer.h new file mode 100644 index 000000000000..198c3774cc12 --- /dev/null +++ b/drivers/gpu/drm/sti/sti_layer.h @@ -0,0 +1,123 @@ +/* + * Copyright (C) STMicroelectronics SA 2014 + * Authors: Benjamin Gaignard <benjamin.gaignard@st.com> + * Fabien Dessenne <fabien.dessenne@st.com> + * for STMicroelectronics. + * License terms: GNU General Public License (GPL), version 2 + */ + +#ifndef _STI_LAYER_H_ +#define _STI_LAYER_H_ + +#include <drm/drmP.h> + +#define to_sti_layer(x) container_of(x, struct sti_layer, plane) + +#define STI_LAYER_TYPE_SHIFT 8 +#define STI_LAYER_TYPE_MASK (~((1<<STI_LAYER_TYPE_SHIFT)-1)) + +struct sti_layer; + +enum sti_layer_type { + STI_GDP = 1 << STI_LAYER_TYPE_SHIFT, + STI_VID = 2 << STI_LAYER_TYPE_SHIFT, + STI_CUR = 3 << STI_LAYER_TYPE_SHIFT, + STI_BCK = 4 << STI_LAYER_TYPE_SHIFT +}; + +enum sti_layer_id_of_type { + STI_ID_0 = 0, + STI_ID_1 = 1, + STI_ID_2 = 2, + STI_ID_3 = 3 +}; + +enum sti_layer_desc { + STI_GDP_0 = STI_GDP | STI_ID_0, + STI_GDP_1 = STI_GDP | STI_ID_1, + STI_GDP_2 = STI_GDP | STI_ID_2, + STI_GDP_3 = STI_GDP | STI_ID_3, + STI_VID_0 = STI_VID | STI_ID_0, + STI_VID_1 = STI_VID | STI_ID_1, + STI_CURSOR = STI_CUR, + STI_BACK = STI_BCK +}; + +/** + * STI layer functions structure + * + * @get_formats: get layer supported formats + * @get_nb_formats: get number of format supported + * @init: initialize the layer + * @prepare: prepare layer before rendering + * @commit: set layer for rendering + * @disable: disable layer + */ +struct sti_layer_funcs { + const uint32_t* (*get_formats)(struct sti_layer *layer); + unsigned int (*get_nb_formats)(struct sti_layer *layer); + void (*init)(struct sti_layer *layer); + int (*prepare)(struct sti_layer *layer, bool first_prepare); + int (*commit)(struct sti_layer *layer); + int (*disable)(struct sti_layer *layer); +}; + +/** + * STI layer structure + * + * @plane: drm plane it is bound to (if any) + * @fb: drm fb it is bound to + * @mode: display mode + * @desc: layer type & id + * @device: driver device + * @regs: layer registers + * @ops: layer functions + * @zorder: layer z-order + * @mixer_id: id of the mixer used to display the layer + * @enabled: to know if the layer is active or not + * @src_x src_y: coordinates of the input (fb) area + * @src_w src_h: size of the input (fb) area + * @dst_x dst_y: coordinates of the output (crtc) area + * @dst_w dst_h: size of the output (crtc) area + * @format: format + * @pitches: pitch of 'planes' (eg: Y, U, V) + * @offsets: offset of 'planes' + * @paddr: physical address of the input buffer + */ +struct sti_layer { + struct drm_plane plane; + struct drm_framebuffer *fb; + struct drm_display_mode *mode; + enum sti_layer_desc desc; + struct device *dev; + void __iomem *regs; + const struct sti_layer_funcs *ops; + int zorder; + int mixer_id; + bool enabled; + int src_x, src_y; + int src_w, src_h; + int dst_x, dst_y; + int dst_w, dst_h; + uint32_t format; + unsigned int pitches[4]; + unsigned int offsets[4]; + dma_addr_t paddr; +}; + +struct sti_layer *sti_layer_create(struct device *dev, int desc, + void __iomem *baseaddr); +int sti_layer_prepare(struct sti_layer *layer, struct drm_framebuffer *fb, + struct drm_display_mode *mode, + int mixer_id, + int dest_x, int dest_y, + int dest_w, int dest_h, + int src_x, int src_y, + int src_w, int src_h); +int sti_layer_commit(struct sti_layer *layer); +int sti_layer_disable(struct sti_layer *layer); +const uint32_t *sti_layer_get_formats(struct sti_layer *layer); +unsigned int sti_layer_get_nb_formats(struct sti_layer *layer); +const char *sti_layer_to_str(struct sti_layer *layer); + +#endif |