1 /* 2 * Copyright (C) 2012 Russell King 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 */ 8 #ifndef ARMADA_DRM_H 9 #define ARMADA_DRM_H 10 11 #include <linux/kfifo.h> 12 #include <linux/io.h> 13 #include <linux/workqueue.h> 14 #include <drm/drmP.h> 15 16 struct armada_crtc; 17 struct armada_gem_object; 18 struct clk; 19 struct drm_fb_helper; 20 21 static inline void 22 armada_updatel(uint32_t val, uint32_t mask, void __iomem *ptr) 23 { 24 uint32_t ov, v; 25 26 ov = v = readl_relaxed(ptr); 27 v = (v & ~mask) | val; 28 if (ov != v) 29 writel_relaxed(v, ptr); 30 } 31 32 static inline uint32_t armada_pitch(uint32_t width, uint32_t bpp) 33 { 34 uint32_t pitch = bpp != 4 ? width * ((bpp + 7) / 8) : width / 2; 35 36 /* 88AP510 spec recommends pitch be a multiple of 128 */ 37 return ALIGN(pitch, 128); 38 } 39 40 41 struct armada_private; 42 43 struct armada_variant { 44 bool has_spu_adv_reg; 45 uint32_t spu_adv_reg; 46 int (*init)(struct armada_crtc *, struct device *); 47 int (*compute_clock)(struct armada_crtc *, 48 const struct drm_display_mode *, 49 uint32_t *); 50 }; 51 52 /* Variant ops */ 53 extern const struct armada_variant armada510_ops; 54 55 struct armada_private { 56 struct work_struct fb_unref_work; 57 DECLARE_KFIFO(fb_unref, struct drm_framebuffer *, 8); 58 struct drm_fb_helper *fbdev; 59 struct armada_crtc *dcrtc[2]; 60 struct drm_mm linear; /* protected by linear_lock */ 61 struct mutex linear_lock; 62 struct drm_property *csc_yuv_prop; 63 struct drm_property *csc_rgb_prop; 64 struct drm_property *colorkey_prop; 65 struct drm_property *colorkey_min_prop; 66 struct drm_property *colorkey_max_prop; 67 struct drm_property *colorkey_val_prop; 68 struct drm_property *colorkey_alpha_prop; 69 struct drm_property *colorkey_mode_prop; 70 struct drm_property *brightness_prop; 71 struct drm_property *contrast_prop; 72 struct drm_property *saturation_prop; 73 #ifdef CONFIG_DEBUG_FS 74 struct dentry *de; 75 #endif 76 }; 77 78 void __armada_drm_queue_unref_work(struct drm_device *, 79 struct drm_framebuffer *); 80 void armada_drm_queue_unref_work(struct drm_device *, 81 struct drm_framebuffer *); 82 83 extern const struct drm_mode_config_funcs armada_drm_mode_config_funcs; 84 85 int armada_fbdev_init(struct drm_device *); 86 void armada_fbdev_lastclose(struct drm_device *); 87 void armada_fbdev_fini(struct drm_device *); 88 89 int armada_overlay_plane_create(struct drm_device *, unsigned long); 90 91 int armada_drm_debugfs_init(struct drm_minor *); 92 void armada_drm_debugfs_cleanup(struct drm_minor *); 93 94 #endif 95