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
47enum bochs_types {
48	BOCHS_QEMU_STDVGA,
49	BOCHS_UNKNOWN,
50};
51
52struct 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 */
78int bochs_hw_init(struct drm_device *dev);
79void bochs_hw_fini(struct drm_device *dev);
80
81void bochs_hw_setmode(struct bochs_device *bochs,
82		      struct drm_display_mode *mode);
83void bochs_hw_setformat(struct bochs_device *bochs,
84			const struct drm_format_info *format);
85void bochs_hw_setbase(struct bochs_device *bochs,
86		      int x, int y, int stride, u64 addr);
87int bochs_hw_load_edid(struct bochs_device *bochs);
88
89/* bochs_mm.c */
90int bochs_mm_init(struct bochs_device *bochs);
91void bochs_mm_fini(struct bochs_device *bochs);
92
93/* bochs_kms.c */
94int bochs_kms_init(struct bochs_device *bochs);
95
96/* bochs_fbdev.c */
97extern const struct drm_mode_config_funcs bochs_mode_funcs;