[qemu.git] / hw / display / cg3.c

/*
 * QEMU CG3 Frame buffer
 *
 * Copyright (c) 2012 Bob Breuer
 * Copyright (c) 2013 Mark Cave-Ayland
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include "qemu-common.h"
#include "qemu/error-report.h"
#include "ui/console.h"
#include "hw/sysbus.h"
#include "hw/loader.h"

/* Change to 1 to enable debugging */
#define DEBUG_CG3 0

#define CG3_ROM_FILE  "QEMU,cgthree.bin"
#define FCODE_MAX_ROM_SIZE 0x10000

#define CG3_REG_SIZE            0x20

#define CG3_REG_BT458_ADDR      0x0
#define CG3_REG_BT458_COLMAP    0x4
#define CG3_REG_FBC_CTRL        0x10
#define CG3_REG_FBC_STATUS      0x11
#define CG3_REG_FBC_CURSTART    0x12
#define CG3_REG_FBC_CUREND      0x13
#define CG3_REG_FBC_VCTRL       0x14

/* Control register flags */
#define CG3_CR_ENABLE_INTS      0x80

/* Status register flags */
#define CG3_SR_PENDING_INT      0x80
#define CG3_SR_1152_900_76_B    0x60
#define CG3_SR_ID_COLOR         0x01

#define CG3_VRAM_SIZE 0x100000
#define CG3_VRAM_OFFSET 0x800000

#define DPRINTF(fmt, ...) do { \
    if (DEBUG_CG3) { \
        printf("CG3: " fmt , ## __VA_ARGS__); \
    } \
} while (0);

#define TYPE_CG3 "cgthree"
#define CG3(obj) OBJECT_CHECK(CG3State, (obj), TYPE_CG3)

typedef struct CG3State {
    SysBusDevice parent_obj;

    QemuConsole *con;
    qemu_irq irq;
    hwaddr prom_addr;
    MemoryRegion vram_mem;
    MemoryRegion rom;
    MemoryRegion reg;
    uint32_t vram_size;
    int full_update;
    uint8_t regs[16];
    uint8_t r[256], g[256], b[256];
    uint16_t width, height, depth;
    uint8_t dac_index, dac_state;
} CG3State;

static void cg3_update_display(void *opaque)
{
    CG3State *s = opaque;
    DisplaySurface *surface = qemu_console_surface(s->con);
    const uint8_t *pix;
    uint32_t *data;
    uint32_t dval;
    int x, y, y_start;
    unsigned int width, height;
    ram_addr_t page, page_min, page_max;

    if (surface_bits_per_pixel(surface) != 32) {
        return;
    }
    width = s->width;
    height = s->height;

    y_start = -1;
    page_min = -1;
    page_max = 0;
    page = 0;
    pix = memory_region_get_ram_ptr(&s->vram_mem);
    data = (uint32_t *)surface_data(surface);

    for (y = 0; y < height; y++) {
        int update = s->full_update;

        page = (y * width) & TARGET_PAGE_MASK;
        update |= memory_region_get_dirty(&s->vram_mem, page, page + width,
                                          DIRTY_MEMORY_VGA);
        if (update) {
            if (y_start < 0) {
                y_start = y;
            }
            if (page < page_min) {
                page_min = page;
            }
            if (page > page_max) {
                page_max = page;
            }

            for (x = 0; x < width; x++) {
                dval = *pix++;
                dval = (s->r[dval] << 16) | (s->g[dval] << 8) | s->b[dval];
                *data++ = dval;
            }
        } else {
            if (y_start >= 0) {
                dpy_gfx_update(s->con, 0, y_start, s->width, y - y_start);
                y_start = -1;
            }
            pix += width;
            data += width;
        }
    }
    s->full_update = 0;
    if (y_start >= 0) {
        dpy_gfx_update(s->con, 0, y_start, s->width, y - y_start);
    }
    if (page_max >= page_min) {
        memory_region_reset_dirty(&s->vram_mem,
                              page_min, page_max - page_min + TARGET_PAGE_SIZE,
                              DIRTY_MEMORY_VGA);
    }
    /* vsync interrupt? */
    if (s->regs[0] & CG3_CR_ENABLE_INTS) {
        s->regs[1] |= CG3_SR_PENDING_INT;
        qemu_irq_raise(s->irq);
    }
}

static void cg3_invalidate_display(void *opaque)
{
    CG3State *s = opaque;

    memory_region_set_dirty(&s->vram_mem, 0, CG3_VRAM_SIZE);
}

static uint64_t cg3_reg_read(void *opaque, hwaddr addr, unsigned size)
{
    CG3State *s = opaque;
    int val;

    switch (addr) {
    case CG3_REG_BT458_ADDR:
    case CG3_REG_BT458_COLMAP:
        val = 0;
        break;
    case CG3_REG_FBC_CTRL:
        val = s->regs[0];
        break;
    case CG3_REG_FBC_STATUS:
        /* monitor ID 6, board type = 1 (color) */
        val = s->regs[1] | CG3_SR_1152_900_76_B | CG3_SR_ID_COLOR;
        break;
    case CG3_REG_FBC_CURSTART ... CG3_REG_SIZE:
        val = s->regs[addr - 0x10];
        break;
    default:
        qemu_log_mask(LOG_UNIMP,
                  "cg3: Unimplemented register read "
                  "reg 0x%" HWADDR_PRIx " size 0x%x\n",
                  addr, size);
        val = 0;
        break;
    }
    DPRINTF("read %02x from reg %" HWADDR_PRIx "\n", val, addr);
    return val;
}

static void cg3_reg_write(void *opaque, hwaddr addr, uint64_t val,
                          unsigned size)
{
    CG3State *s = opaque;
    uint8_t regval;
    int i;

    DPRINTF("write %" PRIx64 " to reg %" HWADDR_PRIx " size %d\n",
            val, addr, size);

    switch (addr) {
    case CG3_REG_BT458_ADDR:
        s->dac_index = val;
        s->dac_state = 0;
        break;
    case CG3_REG_BT458_COLMAP:
        /* This register can be written to as either a long word or a byte */
        if (size == 1) {
            val <<= 24;
        }

        for (i = 0; i < size; i++) {
            regval = val >> 24;

            switch (s->dac_state) {
            case 0:
                s->r[s->dac_index] = regval;
                s->dac_state++;
                break;
            case 1:
                s->g[s->dac_index] = regval;
                s->dac_state++;
                break;
            case 2:
                s->b[s->dac_index] = regval;
                /* Index autoincrement */
                s->dac_index = (s->dac_index + 1) & 0xff;
            default:
                s->dac_state = 0;
                break;
            }
            val <<= 8;
        }
        s->full_update = 1;
        break;
    case CG3_REG_FBC_CTRL:
        s->regs[0] = val;
        break;
    case CG3_REG_FBC_STATUS:
        if (s->regs[1] & CG3_SR_PENDING_INT) {
            /* clear interrupt */
            s->regs[1] &= ~CG3_SR_PENDING_INT;
            qemu_irq_lower(s->irq);
        }
        break;
    case CG3_REG_FBC_CURSTART ... CG3_REG_SIZE:
        s->regs[addr - 0x10] = val;
        break;
    default:
        qemu_log_mask(LOG_UNIMP,
                  "cg3: Unimplemented register write "
                  "reg 0x%" HWADDR_PRIx " size 0x%x value 0x%" PRIx64 "\n",
                  addr, size, val);
        break;
    }
}

static const MemoryRegionOps cg3_reg_ops = {
    .read = cg3_reg_read,
    .write = cg3_reg_write,
    .endianness = DEVICE_NATIVE_ENDIAN,
    .valid = {
        .min_access_size = 1,
        .max_access_size = 4,
    },
};

static const GraphicHwOps cg3_ops = {
    .invalidate = cg3_invalidate_display,
    .gfx_update = cg3_update_display,
};

static void cg3_realizefn(DeviceState *dev, Error **errp)
{
    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
    CG3State *s = CG3(dev);
    int ret;
    char *fcode_filename;

    /* FCode ROM */
    memory_region_init_ram(&s->rom, NULL, "cg3.prom", FCODE_MAX_ROM_SIZE);
    vmstate_register_ram_global(&s->rom);
    memory_region_set_readonly(&s->rom, true);
    sysbus_init_mmio(sbd, &s->rom);

    fcode_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, CG3_ROM_FILE);
    if (fcode_filename) {
        ret = load_image_targphys(fcode_filename, s->prom_addr,
                                  FCODE_MAX_ROM_SIZE);
        if (ret < 0 || ret > FCODE_MAX_ROM_SIZE) {
            error_report("cg3: could not load prom '%s'", CG3_ROM_FILE);
        }
    }

    memory_region_init_io(&s->reg, NULL, &cg3_reg_ops, s, "cg3.reg",
                          CG3_REG_SIZE);
    sysbus_init_mmio(sbd, &s->reg);

    memory_region_init_ram(&s->vram_mem, NULL, "cg3.vram", s->vram_size);
    vmstate_register_ram_global(&s->vram_mem);
    sysbus_init_mmio(sbd, &s->vram_mem);

    sysbus_init_irq(sbd, &s->irq);

    s->con = graphic_console_init(DEVICE(dev), &cg3_ops, s);
    qemu_console_resize(s->con, s->width, s->height);
}

static int vmstate_cg3_post_load(void *opaque, int version_id)
{
    CG3State *s = opaque;

    cg3_invalidate_display(s);

    return 0;
}

static const VMStateDescription vmstate_cg3 = {
    .name = "cg3",
    .version_id = 1,
    .minimum_version_id = 1,
    .post_load = vmstate_cg3_post_load,
    .fields    = (VMStateField[]) {
        VMSTATE_UINT16(height, CG3State),
        VMSTATE_UINT16(width, CG3State),
        VMSTATE_UINT16(depth, CG3State),
        VMSTATE_BUFFER(r, CG3State),
        VMSTATE_BUFFER(g, CG3State),
        VMSTATE_BUFFER(b, CG3State),
        VMSTATE_UINT8(dac_index, CG3State),
        VMSTATE_UINT8(dac_state, CG3State),
        VMSTATE_END_OF_LIST()
    }
};

static void cg3_reset(DeviceState *d)
{
    CG3State *s = CG3(d);

    /* Initialize palette */
    memset(s->r, 0, 256);
    memset(s->g, 0, 256);
    memset(s->b, 0, 256);

    s->dac_state = 0;
    s->full_update = 1;
    qemu_irq_lower(s->irq);
}

static Property cg3_properties[] = {
    DEFINE_PROP_UINT32("vram-size",    CG3State, vram_size, -1),
    DEFINE_PROP_UINT16("width",        CG3State, width,     -1),
    DEFINE_PROP_UINT16("height",       CG3State, height,    -1),
    DEFINE_PROP_UINT16("depth",        CG3State, depth,     -1),
    DEFINE_PROP_UINT64("prom-addr",    CG3State, prom_addr, -1),
    DEFINE_PROP_END_OF_LIST(),
};

static void cg3_class_init(ObjectClass *klass, void *data)
{
    DeviceClass *dc = DEVICE_CLASS(klass);

    dc->realize = cg3_realizefn;
    dc->reset = cg3_reset;
    dc->vmsd = &vmstate_cg3;
    dc->props = cg3_properties;
}

static const TypeInfo cg3_info = {
    .name          = TYPE_CG3,
    .parent        = TYPE_SYS_BUS_DEVICE,
    .instance_size = sizeof(CG3State),
    .class_init    = cg3_class_init,
};

static void cg3_register_types(void)
{
    type_register_static(&cg3_info);
}

type_init(cg3_register_types)
Commit	Line	Data
9eb08a43 MCA	1	/*
	2	* QEMU CG3 Frame buffer
	3	*
	4	* Copyright (c) 2012 Bob Breuer
	5	* Copyright (c) 2013 Mark Cave-Ayland
	6	*
	7	* Permission is hereby granted, free of charge, to any person obtaining a copy
	8	* of this software and associated documentation files (the "Software"), to deal
	9	* in the Software without restriction, including without limitation the rights
	10	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	11	* copies of the Software, and to permit persons to whom the Software is
	12	* furnished to do so, subject to the following conditions:
	13	*
	14	* The above copyright notice and this permission notice shall be included in
	15	* all copies or substantial portions of the Software.
	16	*
	17	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	18	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	19	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	20	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	21	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	22	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	23	* THE SOFTWARE.
	24	*/
	25
	26	#include "qemu-common.h"
	27	#include "qemu/error-report.h"
	28	#include "ui/console.h"
	29	#include "hw/sysbus.h"
	30	#include "hw/loader.h"
	31
	32	/* Change to 1 to enable debugging */
	33	#define DEBUG_CG3 0
	34
	35	#define CG3_ROM_FILE "QEMU,cgthree.bin"
	36	#define FCODE_MAX_ROM_SIZE 0x10000
	37
	38	#define CG3_REG_SIZE 0x20
	39
	40	#define CG3_REG_BT458_ADDR 0x0
	41	#define CG3_REG_BT458_COLMAP 0x4
	42	#define CG3_REG_FBC_CTRL 0x10
	43	#define CG3_REG_FBC_STATUS 0x11
	44	#define CG3_REG_FBC_CURSTART 0x12
	45	#define CG3_REG_FBC_CUREND 0x13
	46	#define CG3_REG_FBC_VCTRL 0x14
	47
	48	/* Control register flags */
	49	#define CG3_CR_ENABLE_INTS 0x80
	50
	51	/* Status register flags */
	52	#define CG3_SR_PENDING_INT 0x80
	53	#define CG3_SR_1152_900_76_B 0x60
	54	#define CG3_SR_ID_COLOR 0x01
	55
	56	#define CG3_VRAM_SIZE 0x100000
	57	#define CG3_VRAM_OFFSET 0x800000
	58
	59	#define DPRINTF(fmt, ...) do { \
	60	if (DEBUG_CG3) { \
	61	printf("CG3: " fmt , ## __VA_ARGS__); \
	62	} \
	63	} while (0);
	64
65	#define TYPE_CG3 "cgthree"
66	#define CG3(obj) OBJECT_CHECK(CG3State, (obj), TYPE_CG3)
67
68	typedef struct CG3State {
69	SysBusDevice parent_obj;
70
71	QemuConsole *con;
72	qemu_irq irq;
73	hwaddr prom_addr;
74	MemoryRegion vram_mem;
75	MemoryRegion rom;
76	MemoryRegion reg;
77	uint32_t vram_size;
78	int full_update;
79	uint8_t regs[16];
80	uint8_t r[256], g[256], b[256];
81	uint16_t width, height, depth;
82	uint8_t dac_index, dac_state;
83	} CG3State;
84
85	static void cg3_update_display(void *opaque)
86	{
87	CG3State *s = opaque;
88	DisplaySurface *surface = qemu_console_surface(s->con);
89	const uint8_t *pix;
90	uint32_t *data;
91	uint32_t dval;
92	int x, y, y_start;
93	unsigned int width, height;
94	ram_addr_t page, page_min, page_max;
95
96	if (surface_bits_per_pixel(surface) != 32) {
97	return;
98	}
99	width = s->width;
100	height = s->height;
101
102	y_start = -1;
103	page_min = -1;
104	page_max = 0;
105	page = 0;
106	pix = memory_region_get_ram_ptr(&s->vram_mem);
107	data = (uint32_t *)surface_data(surface);
108
109	for (y = 0; y < height; y++) {
110	int update = s->full_update;
111
112	page = (y * width) & TARGET_PAGE_MASK;
113	update \|= memory_region_get_dirty(&s->vram_mem, page, page + width,
114	DIRTY_MEMORY_VGA);
115	if (update) {
116	if (y_start < 0) {
117	y_start = y;
118	}
119	if (page < page_min) {
120	page_min = page;
121	}
122	if (page > page_max) {
123	page_max = page;
124	}
125
126	for (x = 0; x < width; x++) {
127	dval = *pix++;
128	dval = (s->r[dval] << 16) \| (s->g[dval] << 8) \| s->b[dval];
129	*data++ = dval;
130	}
131	} else {
132	if (y_start >= 0) {
133	dpy_gfx_update(s->con, 0, y_start, s->width, y - y_start);
134	y_start = -1;
135	}
136	pix += width;
137	data += width;
138	}
139	}
140	s->full_update = 0;
141	if (y_start >= 0) {
142	dpy_gfx_update(s->con, 0, y_start, s->width, y - y_start);
143	}
144	if (page_max >= page_min) {
145	memory_region_reset_dirty(&s->vram_mem,
146	page_min, page_max - page_min + TARGET_PAGE_SIZE,
147	DIRTY_MEMORY_VGA);
148	}
149	/* vsync interrupt? */
150	if (s->regs[0] & CG3_CR_ENABLE_INTS) {
151	s->regs[1] \|= CG3_SR_PENDING_INT;
152	qemu_irq_raise(s->irq);
153	}
154	}
155
156	static void cg3_invalidate_display(void *opaque)
157	{
158	CG3State *s = opaque;
159
160	memory_region_set_dirty(&s->vram_mem, 0, CG3_VRAM_SIZE);
161	}
162
163	static uint64_t cg3_reg_read(void *opaque, hwaddr addr, unsigned size)
164	{
165	CG3State *s = opaque;
166	int val;
167
168	switch (addr) {
169	case CG3_REG_BT458_ADDR:
170	case CG3_REG_BT458_COLMAP:
171	val = 0;
172	break;
173	case CG3_REG_FBC_CTRL:
174	val = s->regs[0];
175	break;
176	case CG3_REG_FBC_STATUS:
177	/* monitor ID 6, board type = 1 (color) */
178	val = s->regs[1] \| CG3_SR_1152_900_76_B \| CG3_SR_ID_COLOR;
179	break;
180	case CG3_REG_FBC_CURSTART ... CG3_REG_SIZE:
181	val = s->regs[addr - 0x10];
182	break;
183	default:
184	qemu_log_mask(LOG_UNIMP,
185	"cg3: Unimplemented register read "
186	"reg 0x%" HWADDR_PRIx " size 0x%x\n",
187	addr, size);
188	val = 0;
189	break;
190	}
191	DPRINTF("read %02x from reg %" HWADDR_PRIx "\n", val, addr);
192	return val;
193	}
194
195	static void cg3_reg_write(void *opaque, hwaddr addr, uint64_t val,
196	unsigned size)
197	{
198	CG3State *s = opaque;
199	uint8_t regval;
200	int i;
201
202	DPRINTF("write %" PRIx64 " to reg %" HWADDR_PRIx " size %d\n",
203	val, addr, size);
204
205	switch (addr) {
206	case CG3_REG_BT458_ADDR:
207	s->dac_index = val;
208	s->dac_state = 0;
209	break;
210	case CG3_REG_BT458_COLMAP:
211	/* This register can be written to as either a long word or a byte */
212	if (size == 1) {
213	val <<= 24;
214	}
215
216	for (i = 0; i < size; i++) {
217	regval = val >> 24;
218
219	switch (s->dac_state) {
220	case 0:
221	s->r[s->dac_index] = regval;
222	s->dac_state++;
223	break;
224	case 1:
225	s->g[s->dac_index] = regval;
226	s->dac_state++;
227	break;
228	case 2:
229	s->b[s->dac_index] = regval;
230	/* Index autoincrement */
231	s->dac_index = (s->dac_index + 1) & 0xff;
232	default:
233	s->dac_state = 0;
234	break;
235	}
236	val <<= 8;
237	}
238	s->full_update = 1;
239	break;
240	case CG3_REG_FBC_CTRL:
241	s->regs[0] = val;
242	break;
243	case CG3_REG_FBC_STATUS:
244	if (s->regs[1] & CG3_SR_PENDING_INT) {
245	/* clear interrupt */
246	s->regs[1] &= ~CG3_SR_PENDING_INT;
247	qemu_irq_lower(s->irq);
248	}
249	break;
250	case CG3_REG_FBC_CURSTART ... CG3_REG_SIZE:
251	s->regs[addr - 0x10] = val;
252	break;
253	default:
254	qemu_log_mask(LOG_UNIMP,
255	"cg3: Unimplemented register write "
256	"reg 0x%" HWADDR_PRIx " size 0x%x value 0x%" PRIx64 "\n",
257	addr, size, val);
258	break;
259	}
260	}
261
262	static const MemoryRegionOps cg3_reg_ops = {
263	.read = cg3_reg_read,
264	.write = cg3_reg_write,
265	.endianness = DEVICE_NATIVE_ENDIAN,
266	.valid = {
267	.min_access_size = 1,
268	.max_access_size = 4,
269	},
270	};
271
272	static const GraphicHwOps cg3_ops = {
273	.invalidate = cg3_invalidate_display,
274	.gfx_update = cg3_update_display,
275	};
276
277	static void cg3_realizefn(DeviceState dev, Error *errp)
278	{
279	SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
280	CG3State *s = CG3(dev);
281	int ret;
282	char *fcode_filename;
283
284	/* FCode ROM */
285	memory_region_init_ram(&s->rom, NULL, "cg3.prom", FCODE_MAX_ROM_SIZE);
286	vmstate_register_ram_global(&s->rom);
287	memory_region_set_readonly(&s->rom, true);
288	sysbus_init_mmio(sbd, &s->rom);
289
290	fcode_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, CG3_ROM_FILE);
291	if (fcode_filename) {
292	ret = load_image_targphys(fcode_filename, s->prom_addr,
293	FCODE_MAX_ROM_SIZE);
294	if (ret < 0 \|\| ret > FCODE_MAX_ROM_SIZE) {
295	error_report("cg3: could not load prom '%s'", CG3_ROM_FILE);
296	}
297	}
298
299	memory_region_init_io(&s->reg, NULL, &cg3_reg_ops, s, "cg3.reg",
300	CG3_REG_SIZE);
301	sysbus_init_mmio(sbd, &s->reg);
302
303	memory_region_init_ram(&s->vram_mem, NULL, "cg3.vram", s->vram_size);
304	vmstate_register_ram_global(&s->vram_mem);
305	sysbus_init_mmio(sbd, &s->vram_mem);
306
307	sysbus_init_irq(sbd, &s->irq);
308
309	s->con = graphic_console_init(DEVICE(dev), &cg3_ops, s);
310	qemu_console_resize(s->con, s->width, s->height);
311	}
312
313	static int vmstate_cg3_post_load(void *opaque, int version_id)
314	{
315	CG3State *s = opaque;
316
317	cg3_invalidate_display(s);
318
319	return 0;
320	}
321
322	static const VMStateDescription vmstate_cg3 = {
323	.name = "cg3",
324	.version_id = 1,
325	.minimum_version_id = 1,
326	.post_load = vmstate_cg3_post_load,
327	.fields = (VMStateField[]) {
328	VMSTATE_UINT16(height, CG3State),
329	VMSTATE_UINT16(width, CG3State),
330	VMSTATE_UINT16(depth, CG3State),
331	VMSTATE_BUFFER(r, CG3State),
332	VMSTATE_BUFFER(g, CG3State),
333	VMSTATE_BUFFER(b, CG3State),
334	VMSTATE_UINT8(dac_index, CG3State),
335	VMSTATE_UINT8(dac_state, CG3State),
336	VMSTATE_END_OF_LIST()
337	}
338	};
339
340	static void cg3_reset(DeviceState *d)
341	{
342	CG3State *s = CG3(d);
343
344	/* Initialize palette */
345	memset(s->r, 0, 256);
346	memset(s->g, 0, 256);
347	memset(s->b, 0, 256);
348
349	s->dac_state = 0;
350	s->full_update = 1;
351	qemu_irq_lower(s->irq);
352	}
353
354	static Property cg3_properties[] = {
355	DEFINE_PROP_UINT32("vram-size", CG3State, vram_size, -1),
356	DEFINE_PROP_UINT16("width", CG3State, width, -1),
357	DEFINE_PROP_UINT16("height", CG3State, height, -1),
358	DEFINE_PROP_UINT16("depth", CG3State, depth, -1),
359	DEFINE_PROP_UINT64("prom-addr", CG3State, prom_addr, -1),
360	DEFINE_PROP_END_OF_LIST(),
361	};
362
363	static void cg3_class_init(ObjectClass klass, void data)
364	{
365	DeviceClass *dc = DEVICE_CLASS(klass);
366
367	dc->realize = cg3_realizefn;
368	dc->reset = cg3_reset;
369	dc->vmsd = &vmstate_cg3;
370	dc->props = cg3_properties;
371	}
372
373	static const TypeInfo cg3_info = {
374	.name = TYPE_CG3,
375	.parent = TYPE_SYS_BUS_DEVICE,
376	.instance_size = sizeof(CG3State),
377	.class_init = cg3_class_init,
378	};
379
380	static void cg3_register_types(void)
381	{
382	type_register_static(&cg3_info);
383	}
384
385	type_init(cg3_register_types)