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