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2
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4#include <linux/vbox_err.h>
5#include "vbox_drv.h"
6#include "vboxvideo_guest.h"
7#include "vboxvideo_vbe.h"
8#include "hgsmi_channels.h"
9#include "hgsmi_ch_setup.h"
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16
17
18int hgsmi_report_flags_location(struct gen_pool *ctx, u32 location)
19{
20 struct hgsmi_buffer_location *p;
21
22 p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_HGSMI,
23 HGSMI_CC_HOST_FLAGS_LOCATION);
24 if (!p)
25 return -ENOMEM;
26
27 p->buf_location = location;
28 p->buf_len = sizeof(struct hgsmi_host_flags);
29
30 hgsmi_buffer_submit(ctx, p);
31 hgsmi_buffer_free(ctx, p);
32
33 return 0;
34}
35
36
37
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39
40
41
42
43int hgsmi_send_caps_info(struct gen_pool *ctx, u32 caps)
44{
45 struct vbva_caps *p;
46
47 p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA, VBVA_INFO_CAPS);
48 if (!p)
49 return -ENOMEM;
50
51 p->rc = VERR_NOT_IMPLEMENTED;
52 p->caps = caps;
53
54 hgsmi_buffer_submit(ctx, p);
55
56 WARN_ON_ONCE(p->rc < 0);
57
58 hgsmi_buffer_free(ctx, p);
59
60 return 0;
61}
62
63int hgsmi_test_query_conf(struct gen_pool *ctx)
64{
65 u32 value = 0;
66 int ret;
67
68 ret = hgsmi_query_conf(ctx, U32_MAX, &value);
69 if (ret)
70 return ret;
71
72 return value == U32_MAX ? 0 : -EIO;
73}
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81
82
83int hgsmi_query_conf(struct gen_pool *ctx, u32 index, u32 *value_ret)
84{
85 struct vbva_conf32 *p;
86
87 p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
88 VBVA_QUERY_CONF32);
89 if (!p)
90 return -ENOMEM;
91
92 p->index = index;
93 p->value = U32_MAX;
94
95 hgsmi_buffer_submit(ctx, p);
96
97 *value_ret = p->value;
98
99 hgsmi_buffer_free(ctx, p);
100
101 return 0;
102}
103
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115
116
117int hgsmi_update_pointer_shape(struct gen_pool *ctx, u32 flags,
118 u32 hot_x, u32 hot_y, u32 width, u32 height,
119 u8 *pixels, u32 len)
120{
121 struct vbva_mouse_pointer_shape *p;
122 u32 pixel_len = 0;
123 int rc;
124
125 if (flags & VBOX_MOUSE_POINTER_SHAPE) {
126
127
128
129
130 pixel_len = ((((width + 7) / 8) * height + 3) & ~3) +
131 width * 4 * height;
132 if (pixel_len > len)
133 return -EINVAL;
134
135
136
137
138
139 flags |= VBOX_MOUSE_POINTER_VISIBLE;
140 }
141
142 p = hgsmi_buffer_alloc(ctx, sizeof(*p) + pixel_len, HGSMI_CH_VBVA,
143 VBVA_MOUSE_POINTER_SHAPE);
144 if (!p)
145 return -ENOMEM;
146
147 p->result = VINF_SUCCESS;
148 p->flags = flags;
149 p->hot_X = hot_x;
150 p->hot_y = hot_y;
151 p->width = width;
152 p->height = height;
153 if (pixel_len)
154 memcpy(p->data, pixels, pixel_len);
155
156 hgsmi_buffer_submit(ctx, p);
157
158 switch (p->result) {
159 case VINF_SUCCESS:
160 rc = 0;
161 break;
162 case VERR_NO_MEMORY:
163 rc = -ENOMEM;
164 break;
165 case VERR_NOT_SUPPORTED:
166 rc = -EBUSY;
167 break;
168 default:
169 rc = -EINVAL;
170 }
171
172 hgsmi_buffer_free(ctx, p);
173
174 return rc;
175}
176
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188
189
190int hgsmi_cursor_position(struct gen_pool *ctx, bool report_position,
191 u32 x, u32 y, u32 *x_host, u32 *y_host)
192{
193 struct vbva_cursor_position *p;
194
195 p = hgsmi_buffer_alloc(ctx, sizeof(*p), HGSMI_CH_VBVA,
196 VBVA_CURSOR_POSITION);
197 if (!p)
198 return -ENOMEM;
199
200 p->report_position = report_position;
201 p->x = x;
202 p->y = y;
203
204 hgsmi_buffer_submit(ctx, p);
205
206 *x_host = p->x;
207 *y_host = p->y;
208
209 hgsmi_buffer_free(ctx, p);
210
211 return 0;
212}
213