1 | /* SPDX-License-Identifier: MIT */ |
2 | /* Copyright (C) 2006-2016 Oracle Corporation */ |
3 | |
4 | #ifndef __VBOXVIDEO_GUEST_H__ |
5 | #define __VBOXVIDEO_GUEST_H__ |
6 | |
7 | #include <linux/genalloc.h> |
8 | #include "vboxvideo.h" |
9 | |
10 | /* |
11 | * Structure grouping the context needed for sending graphics acceleration |
12 | * information to the host via VBVA. Each screen has its own VBVA buffer. |
13 | */ |
14 | struct vbva_buf_ctx { |
15 | /* Offset of the buffer in the VRAM section for the screen */ |
16 | u32 buffer_offset; |
17 | /* Length of the buffer in bytes */ |
18 | u32 buffer_length; |
19 | /* Set if we wrote to the buffer faster than the host could read it */ |
20 | bool buffer_overflow; |
21 | /* VBVA record that we are currently preparing for the host, or NULL */ |
22 | struct vbva_record *record; |
23 | /* |
24 | * Pointer to the VBVA buffer mapped into the current address space. |
25 | * Will be NULL if VBVA is not enabled. |
26 | */ |
27 | struct vbva_buffer *vbva; |
28 | }; |
29 | |
30 | int hgsmi_report_flags_location(struct gen_pool *ctx, u32 location); |
31 | int hgsmi_send_caps_info(struct gen_pool *ctx, u32 caps); |
32 | int hgsmi_test_query_conf(struct gen_pool *ctx); |
33 | int hgsmi_query_conf(struct gen_pool *ctx, u32 index, u32 *value_ret); |
34 | int hgsmi_update_pointer_shape(struct gen_pool *ctx, u32 flags, |
35 | u32 hot_x, u32 hot_y, u32 width, u32 height, |
36 | u8 *pixels, u32 len); |
37 | int hgsmi_cursor_position(struct gen_pool *ctx, bool report_position, |
38 | u32 x, u32 y, u32 *x_host, u32 *y_host); |
39 | |
40 | bool vbva_enable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx, |
41 | struct vbva_buffer *vbva, s32 screen); |
42 | void vbva_disable(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx, |
43 | s32 screen); |
44 | bool vbva_buffer_begin_update(struct vbva_buf_ctx *vbva_ctx, |
45 | struct gen_pool *ctx); |
46 | void vbva_buffer_end_update(struct vbva_buf_ctx *vbva_ctx); |
47 | bool vbva_write(struct vbva_buf_ctx *vbva_ctx, struct gen_pool *ctx, |
48 | const void *p, u32 len); |
49 | void vbva_setup_buffer_context(struct vbva_buf_ctx *vbva_ctx, |
50 | u32 buffer_offset, u32 buffer_length); |
51 | |
52 | void hgsmi_process_display_info(struct gen_pool *ctx, u32 display, |
53 | s32 origin_x, s32 origin_y, u32 start_offset, |
54 | u32 pitch, u32 width, u32 height, |
55 | u16 bpp, u16 flags); |
56 | int hgsmi_update_input_mapping(struct gen_pool *ctx, s32 origin_x, s32 origin_y, |
57 | u32 width, u32 height); |
58 | int hgsmi_get_mode_hints(struct gen_pool *ctx, unsigned int screens, |
59 | struct vbva_modehint *hints); |
60 | |
61 | #endif |
62 | |