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
48enum bochs_types {
49	BOCHS_QEMU_STDVGA,
50	BOCHS_UNKNOWN,
51};
52
53struct 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 */
79int bochs_hw_init(struct drm_device *dev);
80void bochs_hw_fini(struct drm_device *dev);
81
82void bochs_hw_setmode(struct bochs_device *bochs,
83		      struct drm_display_mode *mode);
84void bochs_hw_setformat(struct bochs_device *bochs,
85			const struct drm_format_info *format);
86void bochs_hw_setbase(struct bochs_device *bochs,
87		      int x, int y, int stride, u64 addr);
88int bochs_hw_load_edid(struct bochs_device *bochs);
89
90/* bochs_mm.c */
91int bochs_mm_init(struct bochs_device *bochs);
92void bochs_mm_fini(struct bochs_device *bochs);
93
94/* bochs_kms.c */
95int bochs_kms_init(struct bochs_device *bochs);
96void bochs_kms_fini(struct bochs_device *bochs);
97
98/* bochs_fbdev.c */
99extern const struct drm_mode_config_funcs bochs_mode_funcs;