root / hw / input / hid.c @ a8aec295
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1 | dcfda673 | Gerd Hoffmann | /*
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2 | dcfda673 | Gerd Hoffmann | * QEMU HID devices
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3 | dcfda673 | Gerd Hoffmann | *
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4 | dcfda673 | Gerd Hoffmann | * Copyright (c) 2005 Fabrice Bellard
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5 | dcfda673 | Gerd Hoffmann | * Copyright (c) 2007 OpenMoko, Inc. (andrew@openedhand.com)
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6 | dcfda673 | Gerd Hoffmann | *
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7 | dcfda673 | Gerd Hoffmann | * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 | dcfda673 | Gerd Hoffmann | * of this software and associated documentation files (the "Software"), to deal
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9 | dcfda673 | Gerd Hoffmann | * in the Software without restriction, including without limitation the rights
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10 | dcfda673 | Gerd Hoffmann | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 | dcfda673 | Gerd Hoffmann | * copies of the Software, and to permit persons to whom the Software is
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12 | dcfda673 | Gerd Hoffmann | * furnished to do so, subject to the following conditions:
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13 | dcfda673 | Gerd Hoffmann | *
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14 | dcfda673 | Gerd Hoffmann | * The above copyright notice and this permission notice shall be included in
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15 | dcfda673 | Gerd Hoffmann | * all copies or substantial portions of the Software.
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16 | dcfda673 | Gerd Hoffmann | *
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17 | dcfda673 | Gerd Hoffmann | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 | dcfda673 | Gerd Hoffmann | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 | dcfda673 | Gerd Hoffmann | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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20 | dcfda673 | Gerd Hoffmann | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 | dcfda673 | Gerd Hoffmann | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 | dcfda673 | Gerd Hoffmann | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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23 | dcfda673 | Gerd Hoffmann | * THE SOFTWARE.
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24 | dcfda673 | Gerd Hoffmann | */
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25 | 83c9f4ca | Paolo Bonzini | #include "hw/hw.h" |
26 | 28ecbaee | Paolo Bonzini | #include "ui/console.h" |
27 | 1de7afc9 | Paolo Bonzini | #include "qemu/timer.h" |
28 | 0d09e41a | Paolo Bonzini | #include "hw/input/hid.h" |
29 | dcfda673 | Gerd Hoffmann | |
30 | dcfda673 | Gerd Hoffmann | #define HID_USAGE_ERROR_ROLLOVER 0x01 |
31 | dcfda673 | Gerd Hoffmann | #define HID_USAGE_POSTFAIL 0x02 |
32 | dcfda673 | Gerd Hoffmann | #define HID_USAGE_ERROR_UNDEFINED 0x03 |
33 | dcfda673 | Gerd Hoffmann | |
34 | dcfda673 | Gerd Hoffmann | /* Indices are QEMU keycodes, values are from HID Usage Table. Indices
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35 | dcfda673 | Gerd Hoffmann | * above 0x80 are for keys that come after 0xe0 or 0xe1+0x1d or 0xe1+0x9d. */
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36 | dcfda673 | Gerd Hoffmann | static const uint8_t hid_usage_keys[0x100] = { |
37 | dcfda673 | Gerd Hoffmann | 0x00, 0x29, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, |
38 | dcfda673 | Gerd Hoffmann | 0x24, 0x25, 0x26, 0x27, 0x2d, 0x2e, 0x2a, 0x2b, |
39 | dcfda673 | Gerd Hoffmann | 0x14, 0x1a, 0x08, 0x15, 0x17, 0x1c, 0x18, 0x0c, |
40 | dcfda673 | Gerd Hoffmann | 0x12, 0x13, 0x2f, 0x30, 0x28, 0xe0, 0x04, 0x16, |
41 | dcfda673 | Gerd Hoffmann | 0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x0f, 0x33, |
42 | dcfda673 | Gerd Hoffmann | 0x34, 0x35, 0xe1, 0x31, 0x1d, 0x1b, 0x06, 0x19, |
43 | dcfda673 | Gerd Hoffmann | 0x05, 0x11, 0x10, 0x36, 0x37, 0x38, 0xe5, 0x55, |
44 | dcfda673 | Gerd Hoffmann | 0xe2, 0x2c, 0x32, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, |
45 | dcfda673 | Gerd Hoffmann | 0x3f, 0x40, 0x41, 0x42, 0x43, 0x53, 0x47, 0x5f, |
46 | dcfda673 | Gerd Hoffmann | 0x60, 0x61, 0x56, 0x5c, 0x5d, 0x5e, 0x57, 0x59, |
47 | dcfda673 | Gerd Hoffmann | 0x5a, 0x5b, 0x62, 0x63, 0x00, 0x00, 0x00, 0x44, |
48 | dcfda673 | Gerd Hoffmann | 0x45, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, |
49 | dcfda673 | Gerd Hoffmann | 0xe8, 0xe9, 0x71, 0x72, 0x73, 0x00, 0x00, 0x00, |
50 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x85, 0x00, 0x00, 0x00, 0x00, |
51 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
52 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, |
53 | dcfda673 | Gerd Hoffmann | |
54 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
55 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
56 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
57 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x58, 0xe4, 0x00, 0x00, |
58 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
59 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
60 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x00, 0x46, |
61 | dcfda673 | Gerd Hoffmann | 0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
62 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x00, 0x4a, |
63 | dcfda673 | Gerd Hoffmann | 0x52, 0x4b, 0x00, 0x50, 0x00, 0x4f, 0x00, 0x4d, |
64 | dcfda673 | Gerd Hoffmann | 0x51, 0x4e, 0x49, 0x4c, 0x00, 0x00, 0x00, 0x00, |
65 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0xe3, 0xe7, 0x65, 0x00, 0x00, |
66 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
67 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
68 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
69 | dcfda673 | Gerd Hoffmann | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
70 | dcfda673 | Gerd Hoffmann | }; |
71 | dcfda673 | Gerd Hoffmann | |
72 | dcfda673 | Gerd Hoffmann | bool hid_has_events(HIDState *hs)
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73 | dcfda673 | Gerd Hoffmann | { |
74 | 027c03f7 | Hans de Goede | return hs->n > 0 || hs->idle_pending; |
75 | dcfda673 | Gerd Hoffmann | } |
76 | dcfda673 | Gerd Hoffmann | |
77 | 027c03f7 | Hans de Goede | static void hid_idle_timer(void *opaque) |
78 | b069d348 | Gerd Hoffmann | { |
79 | 027c03f7 | Hans de Goede | HIDState *hs = opaque; |
80 | 027c03f7 | Hans de Goede | |
81 | 027c03f7 | Hans de Goede | hs->idle_pending = true;
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82 | 027c03f7 | Hans de Goede | hs->event(hs); |
83 | 027c03f7 | Hans de Goede | } |
84 | 027c03f7 | Hans de Goede | |
85 | 027c03f7 | Hans de Goede | static void hid_del_idle_timer(HIDState *hs) |
86 | 027c03f7 | Hans de Goede | { |
87 | 027c03f7 | Hans de Goede | if (hs->idle_timer) {
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88 | 027c03f7 | Hans de Goede | qemu_del_timer(hs->idle_timer); |
89 | 027c03f7 | Hans de Goede | qemu_free_timer(hs->idle_timer); |
90 | 027c03f7 | Hans de Goede | hs->idle_timer = NULL;
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91 | 027c03f7 | Hans de Goede | } |
92 | 027c03f7 | Hans de Goede | } |
93 | 027c03f7 | Hans de Goede | |
94 | 027c03f7 | Hans de Goede | void hid_set_next_idle(HIDState *hs)
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95 | 027c03f7 | Hans de Goede | { |
96 | 027c03f7 | Hans de Goede | if (hs->idle) {
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97 | 027c03f7 | Hans de Goede | uint64_t expire_time = qemu_get_clock_ns(vm_clock) + |
98 | 027c03f7 | Hans de Goede | get_ticks_per_sec() * hs->idle * 4 / 1000; |
99 | 027c03f7 | Hans de Goede | if (!hs->idle_timer) {
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100 | 027c03f7 | Hans de Goede | hs->idle_timer = qemu_new_timer_ns(vm_clock, hid_idle_timer, hs); |
101 | 027c03f7 | Hans de Goede | } |
102 | 027c03f7 | Hans de Goede | qemu_mod_timer_ns(hs->idle_timer, expire_time); |
103 | 027c03f7 | Hans de Goede | } else {
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104 | 027c03f7 | Hans de Goede | hid_del_idle_timer(hs); |
105 | 027c03f7 | Hans de Goede | } |
106 | b069d348 | Gerd Hoffmann | } |
107 | b069d348 | Gerd Hoffmann | |
108 | dcfda673 | Gerd Hoffmann | static void hid_pointer_event_clear(HIDPointerEvent *e, int buttons) |
109 | dcfda673 | Gerd Hoffmann | { |
110 | dcfda673 | Gerd Hoffmann | e->xdx = e->ydy = e->dz = 0;
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111 | dcfda673 | Gerd Hoffmann | e->buttons_state = buttons; |
112 | dcfda673 | Gerd Hoffmann | } |
113 | dcfda673 | Gerd Hoffmann | |
114 | dcfda673 | Gerd Hoffmann | static void hid_pointer_event_combine(HIDPointerEvent *e, int xyrel, |
115 | dcfda673 | Gerd Hoffmann | int x1, int y1, int z1) { |
116 | dcfda673 | Gerd Hoffmann | if (xyrel) {
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117 | dcfda673 | Gerd Hoffmann | e->xdx += x1; |
118 | dcfda673 | Gerd Hoffmann | e->ydy += y1; |
119 | dcfda673 | Gerd Hoffmann | } else {
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120 | dcfda673 | Gerd Hoffmann | e->xdx = x1; |
121 | dcfda673 | Gerd Hoffmann | e->ydy = y1; |
122 | dcfda673 | Gerd Hoffmann | /* Windows drivers do not like the 0/0 position and ignore such
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123 | dcfda673 | Gerd Hoffmann | * events. */
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124 | dcfda673 | Gerd Hoffmann | if (!(x1 | y1)) {
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125 | 18f88f11 | Blue Swirl | e->xdx = 1;
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126 | dcfda673 | Gerd Hoffmann | } |
127 | dcfda673 | Gerd Hoffmann | } |
128 | dcfda673 | Gerd Hoffmann | e->dz += z1; |
129 | dcfda673 | Gerd Hoffmann | } |
130 | dcfda673 | Gerd Hoffmann | |
131 | dcfda673 | Gerd Hoffmann | static void hid_pointer_event(void *opaque, |
132 | dcfda673 | Gerd Hoffmann | int x1, int y1, int z1, int buttons_state) |
133 | dcfda673 | Gerd Hoffmann | { |
134 | dcfda673 | Gerd Hoffmann | HIDState *hs = opaque; |
135 | dcfda673 | Gerd Hoffmann | unsigned use_slot = (hs->head + hs->n - 1) & QUEUE_MASK; |
136 | dcfda673 | Gerd Hoffmann | unsigned previous_slot = (use_slot - 1) & QUEUE_MASK; |
137 | dcfda673 | Gerd Hoffmann | |
138 | dcfda673 | Gerd Hoffmann | /* We combine events where feasible to keep the queue small. We shouldn't
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139 | dcfda673 | Gerd Hoffmann | * combine anything with the first event of a particular button state, as
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140 | dcfda673 | Gerd Hoffmann | * that would change the location of the button state change. When the
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141 | dcfda673 | Gerd Hoffmann | * queue is empty, a second event is needed because we don't know if
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142 | dcfda673 | Gerd Hoffmann | * the first event changed the button state. */
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143 | dcfda673 | Gerd Hoffmann | if (hs->n == QUEUE_LENGTH) {
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144 | dcfda673 | Gerd Hoffmann | /* Queue full. Discard old button state, combine motion normally. */
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145 | dcfda673 | Gerd Hoffmann | hs->ptr.queue[use_slot].buttons_state = buttons_state; |
146 | dcfda673 | Gerd Hoffmann | } else if (hs->n < 2 || |
147 | dcfda673 | Gerd Hoffmann | hs->ptr.queue[use_slot].buttons_state != buttons_state || |
148 | dcfda673 | Gerd Hoffmann | hs->ptr.queue[previous_slot].buttons_state != |
149 | dcfda673 | Gerd Hoffmann | hs->ptr.queue[use_slot].buttons_state) { |
150 | dcfda673 | Gerd Hoffmann | /* Cannot or should not combine, so add an empty item to the queue. */
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151 | dcfda673 | Gerd Hoffmann | QUEUE_INCR(use_slot); |
152 | dcfda673 | Gerd Hoffmann | hs->n++; |
153 | dcfda673 | Gerd Hoffmann | hid_pointer_event_clear(&hs->ptr.queue[use_slot], buttons_state); |
154 | dcfda673 | Gerd Hoffmann | } |
155 | dcfda673 | Gerd Hoffmann | hid_pointer_event_combine(&hs->ptr.queue[use_slot], |
156 | dcfda673 | Gerd Hoffmann | hs->kind == HID_MOUSE, |
157 | dcfda673 | Gerd Hoffmann | x1, y1, z1); |
158 | dcfda673 | Gerd Hoffmann | hs->event(hs); |
159 | dcfda673 | Gerd Hoffmann | } |
160 | dcfda673 | Gerd Hoffmann | |
161 | dcfda673 | Gerd Hoffmann | static void hid_keyboard_event(void *opaque, int keycode) |
162 | dcfda673 | Gerd Hoffmann | { |
163 | dcfda673 | Gerd Hoffmann | HIDState *hs = opaque; |
164 | dcfda673 | Gerd Hoffmann | int slot;
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165 | dcfda673 | Gerd Hoffmann | |
166 | dcfda673 | Gerd Hoffmann | if (hs->n == QUEUE_LENGTH) {
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167 | dcfda673 | Gerd Hoffmann | fprintf(stderr, "usb-kbd: warning: key event queue full\n");
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168 | dcfda673 | Gerd Hoffmann | return;
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169 | dcfda673 | Gerd Hoffmann | } |
170 | dcfda673 | Gerd Hoffmann | slot = (hs->head + hs->n) & QUEUE_MASK; hs->n++; |
171 | dcfda673 | Gerd Hoffmann | hs->kbd.keycodes[slot] = keycode; |
172 | dcfda673 | Gerd Hoffmann | hs->event(hs); |
173 | dcfda673 | Gerd Hoffmann | } |
174 | dcfda673 | Gerd Hoffmann | |
175 | dcfda673 | Gerd Hoffmann | static void hid_keyboard_process_keycode(HIDState *hs) |
176 | dcfda673 | Gerd Hoffmann | { |
177 | dcfda673 | Gerd Hoffmann | uint8_t hid_code, key; |
178 | dcfda673 | Gerd Hoffmann | int i, keycode, slot;
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179 | dcfda673 | Gerd Hoffmann | |
180 | dcfda673 | Gerd Hoffmann | if (hs->n == 0) { |
181 | dcfda673 | Gerd Hoffmann | return;
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182 | dcfda673 | Gerd Hoffmann | } |
183 | dcfda673 | Gerd Hoffmann | slot = hs->head & QUEUE_MASK; QUEUE_INCR(hs->head); hs->n--; |
184 | dcfda673 | Gerd Hoffmann | keycode = hs->kbd.keycodes[slot]; |
185 | dcfda673 | Gerd Hoffmann | |
186 | dcfda673 | Gerd Hoffmann | key = keycode & 0x7f;
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187 | dcfda673 | Gerd Hoffmann | hid_code = hid_usage_keys[key | ((hs->kbd.modifiers >> 1) & (1 << 7))]; |
188 | dcfda673 | Gerd Hoffmann | hs->kbd.modifiers &= ~(1 << 8); |
189 | dcfda673 | Gerd Hoffmann | |
190 | dcfda673 | Gerd Hoffmann | switch (hid_code) {
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191 | dcfda673 | Gerd Hoffmann | case 0x00: |
192 | dcfda673 | Gerd Hoffmann | return;
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193 | dcfda673 | Gerd Hoffmann | |
194 | dcfda673 | Gerd Hoffmann | case 0xe0: |
195 | dcfda673 | Gerd Hoffmann | if (hs->kbd.modifiers & (1 << 9)) { |
196 | dcfda673 | Gerd Hoffmann | hs->kbd.modifiers ^= 3 << 8; |
197 | dcfda673 | Gerd Hoffmann | return;
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198 | dcfda673 | Gerd Hoffmann | } |
199 | dcfda673 | Gerd Hoffmann | case 0xe1 ... 0xe7: |
200 | dcfda673 | Gerd Hoffmann | if (keycode & (1 << 7)) { |
201 | dcfda673 | Gerd Hoffmann | hs->kbd.modifiers &= ~(1 << (hid_code & 0x0f)); |
202 | dcfda673 | Gerd Hoffmann | return;
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203 | dcfda673 | Gerd Hoffmann | } |
204 | dcfda673 | Gerd Hoffmann | case 0xe8 ... 0xef: |
205 | dcfda673 | Gerd Hoffmann | hs->kbd.modifiers |= 1 << (hid_code & 0x0f); |
206 | dcfda673 | Gerd Hoffmann | return;
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207 | dcfda673 | Gerd Hoffmann | } |
208 | dcfda673 | Gerd Hoffmann | |
209 | dcfda673 | Gerd Hoffmann | if (keycode & (1 << 7)) { |
210 | dcfda673 | Gerd Hoffmann | for (i = hs->kbd.keys - 1; i >= 0; i--) { |
211 | dcfda673 | Gerd Hoffmann | if (hs->kbd.key[i] == hid_code) {
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212 | dcfda673 | Gerd Hoffmann | hs->kbd.key[i] = hs->kbd.key[-- hs->kbd.keys]; |
213 | dcfda673 | Gerd Hoffmann | hs->kbd.key[hs->kbd.keys] = 0x00;
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214 | dcfda673 | Gerd Hoffmann | break;
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215 | dcfda673 | Gerd Hoffmann | } |
216 | dcfda673 | Gerd Hoffmann | } |
217 | dcfda673 | Gerd Hoffmann | if (i < 0) { |
218 | dcfda673 | Gerd Hoffmann | return;
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219 | dcfda673 | Gerd Hoffmann | } |
220 | dcfda673 | Gerd Hoffmann | } else {
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221 | dcfda673 | Gerd Hoffmann | for (i = hs->kbd.keys - 1; i >= 0; i--) { |
222 | dcfda673 | Gerd Hoffmann | if (hs->kbd.key[i] == hid_code) {
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223 | dcfda673 | Gerd Hoffmann | break;
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224 | dcfda673 | Gerd Hoffmann | } |
225 | dcfda673 | Gerd Hoffmann | } |
226 | dcfda673 | Gerd Hoffmann | if (i < 0) { |
227 | dcfda673 | Gerd Hoffmann | if (hs->kbd.keys < sizeof(hs->kbd.key)) { |
228 | dcfda673 | Gerd Hoffmann | hs->kbd.key[hs->kbd.keys++] = hid_code; |
229 | dcfda673 | Gerd Hoffmann | } |
230 | dcfda673 | Gerd Hoffmann | } else {
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231 | dcfda673 | Gerd Hoffmann | return;
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232 | dcfda673 | Gerd Hoffmann | } |
233 | dcfda673 | Gerd Hoffmann | } |
234 | dcfda673 | Gerd Hoffmann | } |
235 | dcfda673 | Gerd Hoffmann | |
236 | dcfda673 | Gerd Hoffmann | static inline int int_clamp(int val, int vmin, int vmax) |
237 | dcfda673 | Gerd Hoffmann | { |
238 | dcfda673 | Gerd Hoffmann | if (val < vmin) {
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239 | dcfda673 | Gerd Hoffmann | return vmin;
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240 | dcfda673 | Gerd Hoffmann | } else if (val > vmax) { |
241 | dcfda673 | Gerd Hoffmann | return vmax;
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242 | dcfda673 | Gerd Hoffmann | } else {
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243 | dcfda673 | Gerd Hoffmann | return val;
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244 | dcfda673 | Gerd Hoffmann | } |
245 | dcfda673 | Gerd Hoffmann | } |
246 | dcfda673 | Gerd Hoffmann | |
247 | 21635e12 | Gerd Hoffmann | void hid_pointer_activate(HIDState *hs)
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248 | 21635e12 | Gerd Hoffmann | { |
249 | 21635e12 | Gerd Hoffmann | if (!hs->ptr.mouse_grabbed) {
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250 | 21635e12 | Gerd Hoffmann | qemu_activate_mouse_event_handler(hs->ptr.eh_entry); |
251 | 21635e12 | Gerd Hoffmann | hs->ptr.mouse_grabbed = 1;
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252 | 21635e12 | Gerd Hoffmann | } |
253 | 21635e12 | Gerd Hoffmann | } |
254 | 21635e12 | Gerd Hoffmann | |
255 | dcfda673 | Gerd Hoffmann | int hid_pointer_poll(HIDState *hs, uint8_t *buf, int len) |
256 | dcfda673 | Gerd Hoffmann | { |
257 | dcfda673 | Gerd Hoffmann | int dx, dy, dz, b, l;
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258 | dcfda673 | Gerd Hoffmann | int index;
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259 | dcfda673 | Gerd Hoffmann | HIDPointerEvent *e; |
260 | dcfda673 | Gerd Hoffmann | |
261 | 027c03f7 | Hans de Goede | hs->idle_pending = false;
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262 | 027c03f7 | Hans de Goede | |
263 | 21635e12 | Gerd Hoffmann | hid_pointer_activate(hs); |
264 | dcfda673 | Gerd Hoffmann | |
265 | dcfda673 | Gerd Hoffmann | /* When the buffer is empty, return the last event. Relative
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266 | dcfda673 | Gerd Hoffmann | movements will all be zero. */
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267 | dcfda673 | Gerd Hoffmann | index = (hs->n ? hs->head : hs->head - 1);
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268 | dcfda673 | Gerd Hoffmann | e = &hs->ptr.queue[index & QUEUE_MASK]; |
269 | dcfda673 | Gerd Hoffmann | |
270 | dcfda673 | Gerd Hoffmann | if (hs->kind == HID_MOUSE) {
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271 | dcfda673 | Gerd Hoffmann | dx = int_clamp(e->xdx, -127, 127); |
272 | dcfda673 | Gerd Hoffmann | dy = int_clamp(e->ydy, -127, 127); |
273 | dcfda673 | Gerd Hoffmann | e->xdx -= dx; |
274 | dcfda673 | Gerd Hoffmann | e->ydy -= dy; |
275 | dcfda673 | Gerd Hoffmann | } else {
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276 | dcfda673 | Gerd Hoffmann | dx = e->xdx; |
277 | dcfda673 | Gerd Hoffmann | dy = e->ydy; |
278 | dcfda673 | Gerd Hoffmann | } |
279 | dcfda673 | Gerd Hoffmann | dz = int_clamp(e->dz, -127, 127); |
280 | dcfda673 | Gerd Hoffmann | e->dz -= dz; |
281 | dcfda673 | Gerd Hoffmann | |
282 | dcfda673 | Gerd Hoffmann | b = 0;
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283 | dcfda673 | Gerd Hoffmann | if (e->buttons_state & MOUSE_EVENT_LBUTTON) {
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284 | dcfda673 | Gerd Hoffmann | b |= 0x01;
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285 | dcfda673 | Gerd Hoffmann | } |
286 | dcfda673 | Gerd Hoffmann | if (e->buttons_state & MOUSE_EVENT_RBUTTON) {
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287 | dcfda673 | Gerd Hoffmann | b |= 0x02;
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288 | dcfda673 | Gerd Hoffmann | } |
289 | dcfda673 | Gerd Hoffmann | if (e->buttons_state & MOUSE_EVENT_MBUTTON) {
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290 | dcfda673 | Gerd Hoffmann | b |= 0x04;
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291 | dcfda673 | Gerd Hoffmann | } |
292 | dcfda673 | Gerd Hoffmann | |
293 | dcfda673 | Gerd Hoffmann | if (hs->n &&
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294 | dcfda673 | Gerd Hoffmann | !e->dz && |
295 | dcfda673 | Gerd Hoffmann | (hs->kind == HID_TABLET || (!e->xdx && !e->ydy))) { |
296 | dcfda673 | Gerd Hoffmann | /* that deals with this event */
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297 | dcfda673 | Gerd Hoffmann | QUEUE_INCR(hs->head); |
298 | dcfda673 | Gerd Hoffmann | hs->n--; |
299 | dcfda673 | Gerd Hoffmann | } |
300 | dcfda673 | Gerd Hoffmann | |
301 | dcfda673 | Gerd Hoffmann | /* Appears we have to invert the wheel direction */
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302 | dcfda673 | Gerd Hoffmann | dz = 0 - dz;
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303 | dcfda673 | Gerd Hoffmann | l = 0;
|
304 | dcfda673 | Gerd Hoffmann | switch (hs->kind) {
|
305 | dcfda673 | Gerd Hoffmann | case HID_MOUSE:
|
306 | dcfda673 | Gerd Hoffmann | if (len > l) {
|
307 | dcfda673 | Gerd Hoffmann | buf[l++] = b; |
308 | dcfda673 | Gerd Hoffmann | } |
309 | dcfda673 | Gerd Hoffmann | if (len > l) {
|
310 | dcfda673 | Gerd Hoffmann | buf[l++] = dx; |
311 | dcfda673 | Gerd Hoffmann | } |
312 | dcfda673 | Gerd Hoffmann | if (len > l) {
|
313 | dcfda673 | Gerd Hoffmann | buf[l++] = dy; |
314 | dcfda673 | Gerd Hoffmann | } |
315 | dcfda673 | Gerd Hoffmann | if (len > l) {
|
316 | dcfda673 | Gerd Hoffmann | buf[l++] = dz; |
317 | dcfda673 | Gerd Hoffmann | } |
318 | dcfda673 | Gerd Hoffmann | break;
|
319 | dcfda673 | Gerd Hoffmann | |
320 | dcfda673 | Gerd Hoffmann | case HID_TABLET:
|
321 | dcfda673 | Gerd Hoffmann | if (len > l) {
|
322 | dcfda673 | Gerd Hoffmann | buf[l++] = b; |
323 | dcfda673 | Gerd Hoffmann | } |
324 | dcfda673 | Gerd Hoffmann | if (len > l) {
|
325 | dcfda673 | Gerd Hoffmann | buf[l++] = dx & 0xff;
|
326 | dcfda673 | Gerd Hoffmann | } |
327 | dcfda673 | Gerd Hoffmann | if (len > l) {
|
328 | dcfda673 | Gerd Hoffmann | buf[l++] = dx >> 8;
|
329 | dcfda673 | Gerd Hoffmann | } |
330 | dcfda673 | Gerd Hoffmann | if (len > l) {
|
331 | dcfda673 | Gerd Hoffmann | buf[l++] = dy & 0xff;
|
332 | dcfda673 | Gerd Hoffmann | } |
333 | dcfda673 | Gerd Hoffmann | if (len > l) {
|
334 | dcfda673 | Gerd Hoffmann | buf[l++] = dy >> 8;
|
335 | dcfda673 | Gerd Hoffmann | } |
336 | dcfda673 | Gerd Hoffmann | if (len > l) {
|
337 | dcfda673 | Gerd Hoffmann | buf[l++] = dz; |
338 | dcfda673 | Gerd Hoffmann | } |
339 | dcfda673 | Gerd Hoffmann | break;
|
340 | dcfda673 | Gerd Hoffmann | |
341 | dcfda673 | Gerd Hoffmann | default:
|
342 | dcfda673 | Gerd Hoffmann | abort(); |
343 | dcfda673 | Gerd Hoffmann | } |
344 | dcfda673 | Gerd Hoffmann | |
345 | dcfda673 | Gerd Hoffmann | return l;
|
346 | dcfda673 | Gerd Hoffmann | } |
347 | dcfda673 | Gerd Hoffmann | |
348 | dcfda673 | Gerd Hoffmann | int hid_keyboard_poll(HIDState *hs, uint8_t *buf, int len) |
349 | dcfda673 | Gerd Hoffmann | { |
350 | 027c03f7 | Hans de Goede | hs->idle_pending = false;
|
351 | 027c03f7 | Hans de Goede | |
352 | dcfda673 | Gerd Hoffmann | if (len < 2) { |
353 | dcfda673 | Gerd Hoffmann | return 0; |
354 | dcfda673 | Gerd Hoffmann | } |
355 | dcfda673 | Gerd Hoffmann | |
356 | dcfda673 | Gerd Hoffmann | hid_keyboard_process_keycode(hs); |
357 | dcfda673 | Gerd Hoffmann | |
358 | dcfda673 | Gerd Hoffmann | buf[0] = hs->kbd.modifiers & 0xff; |
359 | dcfda673 | Gerd Hoffmann | buf[1] = 0; |
360 | dcfda673 | Gerd Hoffmann | if (hs->kbd.keys > 6) { |
361 | dcfda673 | Gerd Hoffmann | memset(buf + 2, HID_USAGE_ERROR_ROLLOVER, MIN(8, len) - 2); |
362 | dcfda673 | Gerd Hoffmann | } else {
|
363 | dcfda673 | Gerd Hoffmann | memcpy(buf + 2, hs->kbd.key, MIN(8, len) - 2); |
364 | dcfda673 | Gerd Hoffmann | } |
365 | dcfda673 | Gerd Hoffmann | |
366 | dcfda673 | Gerd Hoffmann | return MIN(8, len); |
367 | dcfda673 | Gerd Hoffmann | } |
368 | dcfda673 | Gerd Hoffmann | |
369 | dcfda673 | Gerd Hoffmann | int hid_keyboard_write(HIDState *hs, uint8_t *buf, int len) |
370 | dcfda673 | Gerd Hoffmann | { |
371 | dcfda673 | Gerd Hoffmann | if (len > 0) { |
372 | dcfda673 | Gerd Hoffmann | int ledstate = 0; |
373 | dcfda673 | Gerd Hoffmann | /* 0x01: Num Lock LED
|
374 | dcfda673 | Gerd Hoffmann | * 0x02: Caps Lock LED
|
375 | dcfda673 | Gerd Hoffmann | * 0x04: Scroll Lock LED
|
376 | dcfda673 | Gerd Hoffmann | * 0x08: Compose LED
|
377 | dcfda673 | Gerd Hoffmann | * 0x10: Kana LED */
|
378 | dcfda673 | Gerd Hoffmann | hs->kbd.leds = buf[0];
|
379 | dcfda673 | Gerd Hoffmann | if (hs->kbd.leds & 0x04) { |
380 | dcfda673 | Gerd Hoffmann | ledstate |= QEMU_SCROLL_LOCK_LED; |
381 | dcfda673 | Gerd Hoffmann | } |
382 | dcfda673 | Gerd Hoffmann | if (hs->kbd.leds & 0x01) { |
383 | dcfda673 | Gerd Hoffmann | ledstate |= QEMU_NUM_LOCK_LED; |
384 | dcfda673 | Gerd Hoffmann | } |
385 | dcfda673 | Gerd Hoffmann | if (hs->kbd.leds & 0x02) { |
386 | dcfda673 | Gerd Hoffmann | ledstate |= QEMU_CAPS_LOCK_LED; |
387 | dcfda673 | Gerd Hoffmann | } |
388 | dcfda673 | Gerd Hoffmann | kbd_put_ledstate(ledstate); |
389 | dcfda673 | Gerd Hoffmann | } |
390 | dcfda673 | Gerd Hoffmann | return 0; |
391 | dcfda673 | Gerd Hoffmann | } |
392 | dcfda673 | Gerd Hoffmann | |
393 | dcfda673 | Gerd Hoffmann | void hid_reset(HIDState *hs)
|
394 | dcfda673 | Gerd Hoffmann | { |
395 | dcfda673 | Gerd Hoffmann | switch (hs->kind) {
|
396 | dcfda673 | Gerd Hoffmann | case HID_KEYBOARD:
|
397 | dcfda673 | Gerd Hoffmann | memset(hs->kbd.keycodes, 0, sizeof(hs->kbd.keycodes)); |
398 | dcfda673 | Gerd Hoffmann | memset(hs->kbd.key, 0, sizeof(hs->kbd.key)); |
399 | dcfda673 | Gerd Hoffmann | hs->kbd.keys = 0;
|
400 | dcfda673 | Gerd Hoffmann | break;
|
401 | dcfda673 | Gerd Hoffmann | case HID_MOUSE:
|
402 | dcfda673 | Gerd Hoffmann | case HID_TABLET:
|
403 | dcfda673 | Gerd Hoffmann | memset(hs->ptr.queue, 0, sizeof(hs->ptr.queue)); |
404 | dcfda673 | Gerd Hoffmann | break;
|
405 | dcfda673 | Gerd Hoffmann | } |
406 | dcfda673 | Gerd Hoffmann | hs->head = 0;
|
407 | dcfda673 | Gerd Hoffmann | hs->n = 0;
|
408 | b069d348 | Gerd Hoffmann | hs->protocol = 1;
|
409 | b069d348 | Gerd Hoffmann | hs->idle = 0;
|
410 | 027c03f7 | Hans de Goede | hs->idle_pending = false;
|
411 | 027c03f7 | Hans de Goede | hid_del_idle_timer(hs); |
412 | dcfda673 | Gerd Hoffmann | } |
413 | dcfda673 | Gerd Hoffmann | |
414 | dcfda673 | Gerd Hoffmann | void hid_free(HIDState *hs)
|
415 | dcfda673 | Gerd Hoffmann | { |
416 | dcfda673 | Gerd Hoffmann | switch (hs->kind) {
|
417 | dcfda673 | Gerd Hoffmann | case HID_KEYBOARD:
|
418 | 5a37532d | Gerd Hoffmann | qemu_remove_kbd_event_handler(hs->kbd.eh_entry); |
419 | dcfda673 | Gerd Hoffmann | break;
|
420 | dcfda673 | Gerd Hoffmann | case HID_MOUSE:
|
421 | dcfda673 | Gerd Hoffmann | case HID_TABLET:
|
422 | dcfda673 | Gerd Hoffmann | qemu_remove_mouse_event_handler(hs->ptr.eh_entry); |
423 | dcfda673 | Gerd Hoffmann | break;
|
424 | dcfda673 | Gerd Hoffmann | } |
425 | 027c03f7 | Hans de Goede | hid_del_idle_timer(hs); |
426 | dcfda673 | Gerd Hoffmann | } |
427 | dcfda673 | Gerd Hoffmann | |
428 | dcfda673 | Gerd Hoffmann | void hid_init(HIDState *hs, int kind, HIDEventFunc event) |
429 | dcfda673 | Gerd Hoffmann | { |
430 | dcfda673 | Gerd Hoffmann | hs->kind = kind; |
431 | dcfda673 | Gerd Hoffmann | hs->event = event; |
432 | dcfda673 | Gerd Hoffmann | |
433 | bb0db527 | Michael Walle | if (hs->kind == HID_KEYBOARD) {
|
434 | 5a37532d | Gerd Hoffmann | hs->kbd.eh_entry = qemu_add_kbd_event_handler(hid_keyboard_event, hs); |
435 | bb0db527 | Michael Walle | } else if (hs->kind == HID_MOUSE) { |
436 | dcfda673 | Gerd Hoffmann | hs->ptr.eh_entry = qemu_add_mouse_event_handler(hid_pointer_event, hs, |
437 | dcfda673 | Gerd Hoffmann | 0, "QEMU HID Mouse"); |
438 | dcfda673 | Gerd Hoffmann | } else if (hs->kind == HID_TABLET) { |
439 | dcfda673 | Gerd Hoffmann | hs->ptr.eh_entry = qemu_add_mouse_event_handler(hid_pointer_event, hs, |
440 | dcfda673 | Gerd Hoffmann | 1, "QEMU HID Tablet"); |
441 | dcfda673 | Gerd Hoffmann | } |
442 | dcfda673 | Gerd Hoffmann | } |
443 | ccd4ed06 | Michael Walle | |
444 | ccd4ed06 | Michael Walle | static int hid_post_load(void *opaque, int version_id) |
445 | ccd4ed06 | Michael Walle | { |
446 | ccd4ed06 | Michael Walle | HIDState *s = opaque; |
447 | ccd4ed06 | Michael Walle | |
448 | 027c03f7 | Hans de Goede | hid_set_next_idle(s); |
449 | ccd4ed06 | Michael Walle | return 0; |
450 | ccd4ed06 | Michael Walle | } |
451 | ccd4ed06 | Michael Walle | |
452 | ccd4ed06 | Michael Walle | static const VMStateDescription vmstate_hid_ptr_queue = { |
453 | ccd4ed06 | Michael Walle | .name = "HIDPointerEventQueue",
|
454 | ccd4ed06 | Michael Walle | .version_id = 1,
|
455 | ccd4ed06 | Michael Walle | .minimum_version_id = 1,
|
456 | ccd4ed06 | Michael Walle | .fields = (VMStateField[]) { |
457 | ccd4ed06 | Michael Walle | VMSTATE_INT32(xdx, HIDPointerEvent), |
458 | ccd4ed06 | Michael Walle | VMSTATE_INT32(ydy, HIDPointerEvent), |
459 | ccd4ed06 | Michael Walle | VMSTATE_INT32(dz, HIDPointerEvent), |
460 | ccd4ed06 | Michael Walle | VMSTATE_INT32(buttons_state, HIDPointerEvent), |
461 | ccd4ed06 | Michael Walle | VMSTATE_END_OF_LIST() |
462 | ccd4ed06 | Michael Walle | } |
463 | ccd4ed06 | Michael Walle | }; |
464 | ccd4ed06 | Michael Walle | |
465 | ccd4ed06 | Michael Walle | const VMStateDescription vmstate_hid_ptr_device = {
|
466 | ccd4ed06 | Michael Walle | .name = "HIDPointerDevice",
|
467 | ccd4ed06 | Michael Walle | .version_id = 1,
|
468 | ccd4ed06 | Michael Walle | .minimum_version_id = 1,
|
469 | ccd4ed06 | Michael Walle | .post_load = hid_post_load, |
470 | ccd4ed06 | Michael Walle | .fields = (VMStateField[]) { |
471 | ccd4ed06 | Michael Walle | VMSTATE_STRUCT_ARRAY(ptr.queue, HIDState, QUEUE_LENGTH, 0,
|
472 | ccd4ed06 | Michael Walle | vmstate_hid_ptr_queue, HIDPointerEvent), |
473 | ccd4ed06 | Michael Walle | VMSTATE_UINT32(head, HIDState), |
474 | ccd4ed06 | Michael Walle | VMSTATE_UINT32(n, HIDState), |
475 | ccd4ed06 | Michael Walle | VMSTATE_INT32(protocol, HIDState), |
476 | ccd4ed06 | Michael Walle | VMSTATE_UINT8(idle, HIDState), |
477 | ccd4ed06 | Michael Walle | VMSTATE_END_OF_LIST(), |
478 | ccd4ed06 | Michael Walle | } |
479 | ccd4ed06 | Michael Walle | }; |
480 | ccd4ed06 | Michael Walle | |
481 | ccd4ed06 | Michael Walle | const VMStateDescription vmstate_hid_keyboard_device = {
|
482 | ccd4ed06 | Michael Walle | .name = "HIDKeyboardDevice",
|
483 | ccd4ed06 | Michael Walle | .version_id = 1,
|
484 | ccd4ed06 | Michael Walle | .minimum_version_id = 1,
|
485 | ccd4ed06 | Michael Walle | .post_load = hid_post_load, |
486 | ccd4ed06 | Michael Walle | .fields = (VMStateField[]) { |
487 | ccd4ed06 | Michael Walle | VMSTATE_UINT32_ARRAY(kbd.keycodes, HIDState, QUEUE_LENGTH), |
488 | ccd4ed06 | Michael Walle | VMSTATE_UINT32(head, HIDState), |
489 | ccd4ed06 | Michael Walle | VMSTATE_UINT32(n, HIDState), |
490 | ccd4ed06 | Michael Walle | VMSTATE_UINT16(kbd.modifiers, HIDState), |
491 | ccd4ed06 | Michael Walle | VMSTATE_UINT8(kbd.leds, HIDState), |
492 | ccd4ed06 | Michael Walle | VMSTATE_UINT8_ARRAY(kbd.key, HIDState, 16),
|
493 | ccd4ed06 | Michael Walle | VMSTATE_INT32(kbd.keys, HIDState), |
494 | ccd4ed06 | Michael Walle | VMSTATE_INT32(protocol, HIDState), |
495 | ccd4ed06 | Michael Walle | VMSTATE_UINT8(idle, HIDState), |
496 | ccd4ed06 | Michael Walle | VMSTATE_END_OF_LIST(), |
497 | ccd4ed06 | Michael Walle | } |
498 | ccd4ed06 | Michael Walle | }; |