| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * Copyright (C) 2012 Russell King |
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| 4 | */ |
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| 5 | #ifndef ARMADA_DRM_H |
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| 6 | #define ARMADA_DRM_H |
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| 7 | |
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| 8 | #include <linux/kfifo.h> |
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| 9 | #include <linux/io.h> |
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| 10 | #include <linux/workqueue.h> |
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| 11 | |
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| 12 | #include <drm/drm_device.h> |
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| 13 | #include <drm/drm_mm.h> |
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| 14 | |
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| 15 | struct armada_crtc; |
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| 16 | struct armada_gem_object; |
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| 17 | struct clk; |
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| 18 | struct drm_display_mode; |
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| 19 | struct drm_fb_helper; |
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| 20 | struct drm_fb_helper_surface_size; |
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| 21 | |
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| 22 | static inline void |
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| 23 | armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr) |
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| 24 | { |
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| 25 | uint32_t ov, v; |
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| 26 | |
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| 27 | ov = v = readl_relaxed(ptr); |
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| 28 | v = (v & ~mask) | val; |
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| 29 | if (ov != v) |
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| 30 | writel_relaxed(v, ptr); |
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| 31 | } |
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| 32 | |
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| 33 | static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp) |
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| 34 | { |
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| 35 | uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2; |
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| 36 | |
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| 37 | /* 88AP510 spec recommends pitch be a multiple of 128 */ |
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| 38 | return ALIGN(pitch, 128); |
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| 39 | } |
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| 40 | |
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| 41 | |
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| 42 | struct armada_private; |
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| 43 | |
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| 44 | struct armada_variant { |
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| 45 | bool has_spu_adv_reg; |
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| 46 | int (*init)(struct armada_crtc *, struct device *); |
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| 47 | int (*compute_clock)(struct armada_crtc *, |
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| 48 | const struct drm_display_mode *, |
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| 49 | uint32_t *); |
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| 50 | void (*disable)(struct armada_crtc *); |
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| 51 | void (*enable)(struct armada_crtc *, const struct drm_display_mode *); |
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| 52 | }; |
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| 53 | |
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| 54 | /* Variant ops */ |
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| 55 | extern const struct armada_variant armada510_ops; |
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| 56 | |
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| 57 | struct armada_private { |
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| 58 | struct drm_device drm; |
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| 59 | struct armada_crtc *dcrtc[2]; |
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| 60 | struct drm_mm linear; /* protected by linear_lock */ |
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| 61 | struct mutex linear_lock; |
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| 62 | struct drm_property *colorkey_prop; |
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| 63 | struct drm_property *colorkey_min_prop; |
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| 64 | struct drm_property *colorkey_max_prop; |
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| 65 | struct drm_property *colorkey_val_prop; |
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| 66 | struct drm_property *colorkey_alpha_prop; |
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| 67 | struct drm_property *colorkey_mode_prop; |
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| 68 | struct drm_property *brightness_prop; |
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| 69 | struct drm_property *contrast_prop; |
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| 70 | struct drm_property *saturation_prop; |
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| 71 | #ifdef CONFIG_DEBUG_FS |
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| 72 | struct dentry *de; |
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| 73 | #endif |
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| 74 | }; |
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| 75 | |
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| 76 | #define drm_to_armada_dev(dev) container_of(dev, struct armada_private, drm) |
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| 77 | |
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| 78 | #if defined(CONFIG_DRM_FBDEV_EMULATION) |
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| 79 | int armada_fbdev_driver_fbdev_probe(struct drm_fb_helper *fbh, |
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| 80 | struct drm_fb_helper_surface_size *sizes); |
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| 81 | #define ARMADA_FBDEV_DRIVER_OPS \ |
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| 82 | .fbdev_probe = armada_fbdev_driver_fbdev_probe |
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| 83 | #else |
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| 84 | #define ARMADA_FBDEV_DRIVER_OPS \ |
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| 85 | .fbdev_probe = NULL |
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| 86 | #endif |
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| 87 | |
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| 88 | int armada_overlay_plane_create(struct drm_device *, unsigned long); |
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| 89 | |
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| 90 | void armada_drm_crtc_debugfs_init(struct armada_crtc *dcrtc); |
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| 91 | int armada_drm_debugfs_init(struct drm_minor *); |
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| 92 | |
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| 93 | #endif |
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| 94 | |
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