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 struct armada_vbl_event { 41 struct list_head node; 42 void *data; 43 void (*fn)(struct armada_crtc *, void *); 44 }; 45 void armada_drm_vbl_event_add(struct armada_crtc *, 46 struct armada_vbl_event *); 47 void armada_drm_vbl_event_remove(struct armada_crtc *, 48 struct armada_vbl_event *); 49 void armada_drm_vbl_event_remove_unlocked(struct armada_crtc *, 50 struct armada_vbl_event *); 51 #define armada_drm_vbl_event_init(_e, _f, _d) do { \ 52 struct armada_vbl_event *__e = _e; \ 53 INIT_LIST_HEAD(&__e->node); \ 54 __e->data = _d; \ 55 __e->fn = _f; \ 56 } while (0) 57 58 59 struct armada_private; 60 61 struct armada_variant { 62 bool has_spu_adv_reg; 63 uint32_t spu_adv_reg; 64 int (*init)(struct armada_private *, struct device *); 65 int (*crtc_init)(struct armada_crtc *); 66 int (*crtc_compute_clock)(struct armada_crtc *, 67 const struct drm_display_mode *, 68 uint32_t *); 69 }; 70 71 /* Variant ops */ 72 extern const struct armada_variant armada510_ops; 73 74 struct armada_private { 75 const struct armada_variant *variant; 76 struct work_struct fb_unref_work; 77 DECLARE_KFIFO(fb_unref, struct drm_framebuffer *, 8); 78 struct drm_fb_helper *fbdev; 79 struct armada_crtc *dcrtc[2]; 80 struct drm_mm linear; 81 struct clk *extclk[2]; 82 struct drm_property *csc_yuv_prop; 83 struct drm_property *csc_rgb_prop; 84 struct drm_property *colorkey_prop; 85 struct drm_property *colorkey_min_prop; 86 struct drm_property *colorkey_max_prop; 87 struct drm_property *colorkey_val_prop; 88 struct drm_property *colorkey_alpha_prop; 89 struct drm_property *colorkey_mode_prop; 90 struct drm_property *brightness_prop; 91 struct drm_property *contrast_prop; 92 struct drm_property *saturation_prop; 93 #ifdef CONFIG_DEBUG_FS 94 struct dentry *de; 95 #endif 96 }; 97 98 void __armada_drm_queue_unref_work(struct drm_device *, 99 struct drm_framebuffer *); 100 void armada_drm_queue_unref_work(struct drm_device *, 101 struct drm_framebuffer *); 102 103 extern const struct drm_mode_config_funcs armada_drm_mode_config_funcs; 104 105 int armada_fbdev_init(struct drm_device *); 106 void armada_fbdev_lastclose(struct drm_device *); 107 void armada_fbdev_fini(struct drm_device *); 108 109 int armada_overlay_plane_create(struct drm_device *, unsigned long); 110 111 int armada_drm_debugfs_init(struct drm_minor *); 112 void armada_drm_debugfs_cleanup(struct drm_minor *); 113 114 #endif 115