drivers/gpu/drm/armada/armada_crtc.h

   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_CRTC_H
   9 #define ARMADA_CRTC_H
  10
  11 struct armada_gem_object;
  12
  13 struct armada_regs {
  14         uint32_t offset;
  15         uint32_t mask;
  16         uint32_t val;
  17 };
  18
  19 #define armada_reg_queue_mod(_r, _i, _v, _m, _o)        \
  20         do {                                    \
  21                 struct armada_regs *__reg = _r; \
  22                 __reg[_i].offset = _o;          \
  23                 __reg[_i].mask = ~(_m);         \
  24                 __reg[_i].val = _v;             \
  25                 _i++;                           \
  26         } while (0)
  27
  28 #define armada_reg_queue_set(_r, _i, _v, _o)    \
  29         armada_reg_queue_mod(_r, _i, _v, ~0, _o)
  30
  31 #define armada_reg_queue_end(_r, _i)            \
  32         armada_reg_queue_mod(_r, _i, 0, 0, ~0)
  33
  34 struct armada_crtc;
  35 struct armada_plane;
  36 struct armada_variant;
  37
  38 struct armada_plane_work {
  39         void (*fn)(struct armada_crtc *, struct armada_plane_work *);
  40         void (*cancel)(struct armada_crtc *, struct armada_plane_work *);
  41         bool need_kfree;
  42         struct drm_plane *plane;
  43         struct drm_framebuffer *old_fb;
  44         struct drm_pending_vblank_event *event;
  45         struct armada_regs regs[14];
  46 };
  47
  48 struct armada_plane_state {
  49         u16 src_x;
  50         u16 src_y;
  51         u32 src_hw;
  52         u32 dst_hw;
  53         u32 dst_yx;
  54         u32 ctrl0;
  55         bool changed;
  56         bool vsync_update;
  57 };
  58
  59 struct armada_plane {
  60         struct drm_plane        base;
  61         wait_queue_head_t       frame_wait;
  62         bool                    next_work;
  63         struct armada_plane_work works[2];
  64         struct armada_plane_work *work;
  65         struct armada_plane_state state;
  66 };
  67 #define drm_to_armada_plane(p) container_of(p, struct armada_plane, base)
  68
  69 int armada_drm_plane_init(struct armada_plane *plane);
  70 int armada_drm_plane_work_queue(struct armada_crtc *dcrtc,
  71         struct armada_plane_work *work);
  72 int armada_drm_plane_work_wait(struct armada_plane *plane, long timeout);
  73 void armada_drm_plane_work_cancel(struct armada_crtc *dcrtc,
  74         struct armada_plane *plane);
  75 void armada_drm_plane_calc_addrs(u32 *addrs, struct drm_framebuffer *fb,
  76         int x, int y);
  77
  78 struct armada_crtc {
  79         struct drm_crtc         crtc;
  80         const struct armada_variant *variant;
  81         unsigned                num;
  82         void __iomem            *base;
  83         struct clk              *clk;
  84         struct clk              *extclk[2];
  85         struct {
  86                 uint32_t        spu_v_h_total;
  87                 uint32_t        spu_v_porch;
  88                 uint32_t        spu_adv_reg;
  89         } v[2];
  90         bool                    interlaced;
  91         bool                    cursor_update;
  92         uint8_t                 csc_yuv_mode;
  93         uint8_t                 csc_rgb_mode;
  94
  95         struct drm_plane        *plane;
  96
  97         struct armada_gem_object        *cursor_obj;
  98         int                     cursor_x;
  99         int                     cursor_y;
 100         uint32_t                cursor_hw_pos;
 101         uint32_t                cursor_hw_sz;
 102         uint32_t                cursor_w;
 103         uint32_t                cursor_h;
 104
 105         int                     dpms;
 106         uint32_t                cfg_dumb_ctrl;
 107         uint32_t                dumb_ctrl;
 108         uint32_t                spu_iopad_ctrl;
 109
 110         spinlock_t              irq_lock;
 111         uint32_t                irq_ena;
 112 };
 113 #define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc)
 114
 115 void armada_drm_crtc_update_regs(struct armada_crtc *, struct armada_regs *);
 116
 117 int armada_drm_plane_disable(struct drm_plane *plane,
 118                              struct drm_modeset_acquire_ctx *ctx);
 119
 120 extern struct platform_driver armada_lcd_platform_driver;
 121
 122 #endif