drivers/gpu/drm/bochs/bochs.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #include <linux/io.h>
   3 #include <linux/console.h>
   4
   5 #include <drm/drmP.h>
   6 #include <drm/drm_crtc.h>
   7 #include <drm/drm_crtc_helper.h>
   8 #include <drm/drm_encoder.h>
   9 #include <drm/drm_fb_helper.h>
  10 #include <drm/drm_simple_kms_helper.h>
  11
  12 #include <drm/drm_gem.h>
  13 #include <drm/drm_gem_vram_helper.h>
  14
  15 #include <drm/drm_vram_mm_helper.h>
  16
  17 /* ---------------------------------------------------------------------- */
  18
  19 #define VBE_DISPI_IOPORT_INDEX           0x01CE
  20 #define VBE_DISPI_IOPORT_DATA            0x01CF
  21
  22 #define VBE_DISPI_INDEX_ID               0x0
  23 #define VBE_DISPI_INDEX_XRES             0x1
  24 #define VBE_DISPI_INDEX_YRES             0x2
  25 #define VBE_DISPI_INDEX_BPP              0x3
  26 #define VBE_DISPI_INDEX_ENABLE           0x4
  27 #define VBE_DISPI_INDEX_BANK             0x5
  28 #define VBE_DISPI_INDEX_VIRT_WIDTH       0x6
  29 #define VBE_DISPI_INDEX_VIRT_HEIGHT      0x7
  30 #define VBE_DISPI_INDEX_X_OFFSET         0x8
  31 #define VBE_DISPI_INDEX_Y_OFFSET         0x9
  32 #define VBE_DISPI_INDEX_VIDEO_MEMORY_64K 0xa
  33
  34 #define VBE_DISPI_ID0                    0xB0C0
  35 #define VBE_DISPI_ID1                    0xB0C1
  36 #define VBE_DISPI_ID2                    0xB0C2
  37 #define VBE_DISPI_ID3                    0xB0C3
  38 #define VBE_DISPI_ID4                    0xB0C4
  39 #define VBE_DISPI_ID5                    0xB0C5
  40
  41 #define VBE_DISPI_DISABLED               0x00
  42 #define VBE_DISPI_ENABLED                0x01
  43 #define VBE_DISPI_GETCAPS                0x02
  44 #define VBE_DISPI_8BIT_DAC               0x20
  45 #define VBE_DISPI_LFB_ENABLED            0x40
  46 #define VBE_DISPI_NOCLEARMEM             0x80
  47
  48 /* ---------------------------------------------------------------------- */
  49
  50 enum bochs_types {
  51         BOCHS_QEMU_STDVGA,
  52         BOCHS_UNKNOWN,
  53 };
  54
  55 struct bochs_device {
  56         /* hw */
  57         void __iomem   *mmio;
  58         int            ioports;
  59         void __iomem   *fb_map;
  60         unsigned long  fb_base;
  61         unsigned long  fb_size;
  62         unsigned long  qext_size;
  63
  64         /* mode */
  65         u16 xres;
  66         u16 yres;
  67         u16 yres_virtual;
  68         u32 stride;
  69         u32 bpp;
  70         struct edid *edid;
  71
  72         /* drm */
  73         struct drm_device *dev;
  74         struct drm_simple_display_pipe pipe;
  75         struct drm_connector connector;
  76 };
  77
  78 /* ---------------------------------------------------------------------- */
  79
  80 /* bochs_hw.c */
  81 int bochs_hw_init(struct drm_device *dev);
  82 void bochs_hw_fini(struct drm_device *dev);
  83
  84 void bochs_hw_setmode(struct bochs_device *bochs,
  85                       struct drm_display_mode *mode);
  86 void bochs_hw_setformat(struct bochs_device *bochs,
  87                         const struct drm_format_info *format);
  88 void bochs_hw_setbase(struct bochs_device *bochs,
  89                       int x, int y, u64 addr);
  90 int bochs_hw_load_edid(struct bochs_device *bochs);
  91
  92 /* bochs_mm.c */
  93 int bochs_mm_init(struct bochs_device *bochs);
  94 void bochs_mm_fini(struct bochs_device *bochs);
  95
  96 /* bochs_kms.c */
  97 int bochs_kms_init(struct bochs_device *bochs);
  98 void bochs_kms_fini(struct bochs_device *bochs);
  99
 100 /* bochs_fbdev.c */
 101 extern const struct drm_mode_config_funcs bochs_mode_funcs;