drivers/gpu/drm/bochs/bochs.h

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