hw/arm/bcm2836: Only provide "enabled-cpus" property to multicore SoCs
[qemu.git] / hw / display / next-fb.c
1 /*
2 * NeXT Cube/Station Framebuffer Emulation
3 *
4 * Copyright (c) 2011 Bryce Lanham
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include "qemu/osdep.h"
25 #include "qapi/error.h"
26 #include "ui/console.h"
27 #include "hw/hw.h"
28 #include "hw/boards.h"
29 #include "hw/loader.h"
30 #include "framebuffer.h"
31 #include "ui/pixel_ops.h"
32 #include "hw/m68k/next-cube.h"
33 #include "qom/object.h"
34
35 OBJECT_DECLARE_SIMPLE_TYPE(NeXTFbState, NEXTFB)
36
37 struct NeXTFbState {
38 SysBusDevice parent_obj;
39
40 MemoryRegion fb_mr;
41 MemoryRegionSection fbsection;
42 QemuConsole *con;
43
44 uint32_t cols;
45 uint32_t rows;
46 int invalidate;
47 };
48
49 static void nextfb_draw_line(void *opaque, uint8_t *d, const uint8_t *s,
50 int width, int pitch)
51 {
52 NeXTFbState *nfbstate = NEXTFB(opaque);
53 static const uint32_t pal[4] = {
54 0xFFFFFFFF, 0xFFAAAAAA, 0xFF555555, 0xFF000000
55 };
56 uint32_t *buf = (uint32_t *)d;
57 int i = 0;
58
59 for (i = 0; i < nfbstate->cols / 4; i++) {
60 int j = i * 4;
61 uint8_t src = s[i];
62 buf[j + 3] = pal[src & 0x3];
63 src >>= 2;
64 buf[j + 2] = pal[src & 0x3];
65 src >>= 2;
66 buf[j + 1] = pal[src & 0x3];
67 src >>= 2;
68 buf[j + 0] = pal[src & 0x3];
69 }
70 }
71
72 static void nextfb_update(void *opaque)
73 {
74 NeXTFbState *s = NEXTFB(opaque);
75 int dest_width = 4;
76 int src_width;
77 int first = 0;
78 int last = 0;
79 DisplaySurface *surface = qemu_console_surface(s->con);
80
81 src_width = s->cols / 4 + 8;
82 dest_width = s->cols * 4;
83
84 if (s->invalidate) {
85 framebuffer_update_memory_section(&s->fbsection, &s->fb_mr, 0,
86 s->cols, src_width);
87 s->invalidate = 0;
88 }
89
90 framebuffer_update_display(surface, &s->fbsection, s->cols, s->rows,
91 src_width, dest_width, 0, 1, nextfb_draw_line,
92 s, &first, &last);
93
94 dpy_gfx_update(s->con, 0, 0, s->cols, s->rows);
95 }
96
97 static void nextfb_invalidate(void *opaque)
98 {
99 NeXTFbState *s = NEXTFB(opaque);
100 s->invalidate = 1;
101 }
102
103 static const GraphicHwOps nextfb_ops = {
104 .invalidate = nextfb_invalidate,
105 .gfx_update = nextfb_update,
106 };
107
108 static void nextfb_realize(DeviceState *dev, Error **errp)
109 {
110 NeXTFbState *s = NEXTFB(dev);
111
112 memory_region_init_ram(&s->fb_mr, OBJECT(dev), "next-video", 0x1CB100,
113 &error_fatal);
114 sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->fb_mr);
115
116 s->invalidate = 1;
117 s->cols = 1120;
118 s->rows = 832;
119
120 s->con = graphic_console_init(dev, 0, &nextfb_ops, s);
121 qemu_console_resize(s->con, s->cols, s->rows);
122 }
123
124 static void nextfb_class_init(ObjectClass *oc, void *data)
125 {
126 DeviceClass *dc = DEVICE_CLASS(oc);
127
128 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
129 dc->realize = nextfb_realize;
130
131 /* Note: This device does not any state that we have to reset or migrate */
132 }
133
134 static const TypeInfo nextfb_info = {
135 .name = TYPE_NEXTFB,
136 .parent = TYPE_SYS_BUS_DEVICE,
137 .instance_size = sizeof(NeXTFbState),
138 .class_init = nextfb_class_init,
139 };
140
141 static void nextfb_register_types(void)
142 {
143 type_register_static(&nextfb_info);
144 }
145
146 type_init(nextfb_register_types)