[mirror_qemu.git] / hw / input / milkymist-softusb.c

/*
 *  QEMU model of the Milkymist SoftUSB block.
 *
 *  Copyright (c) 2010 Michael Walle <michael@walle.cc>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
 *
 *
 * Specification available at:
 *   not available yet
 */

#include "hw/hw.h"
#include "hw/sysbus.h"
#include "trace.h"
#include "ui/console.h"
#include "hw/input/hid.h"
#include "qemu/error-report.h"

enum {
    R_CTRL = 0,
    R_MAX
};

enum {
    CTRL_RESET = (1<<0),
};

#define COMLOC_DEBUG_PRODUCE 0x1000
#define COMLOC_DEBUG_BASE    0x1001
#define COMLOC_MEVT_PRODUCE  0x1101
#define COMLOC_MEVT_BASE     0x1102
#define COMLOC_KEVT_PRODUCE  0x1142
#define COMLOC_KEVT_BASE     0x1143

#define TYPE_MILKYMIST_SOFTUSB "milkymist-softusb"
#define MILKYMIST_SOFTUSB(obj) \
    OBJECT_CHECK(MilkymistSoftUsbState, (obj), TYPE_MILKYMIST_SOFTUSB)

struct MilkymistSoftUsbState {
    SysBusDevice parent_obj;

    HIDState hid_kbd;
    HIDState hid_mouse;

    MemoryRegion regs_region;
    MemoryRegion pmem;
    MemoryRegion dmem;
    qemu_irq irq;

    void *pmem_ptr;
    void *dmem_ptr;

    /* device properties */
    uint32_t pmem_size;
    uint32_t dmem_size;

    /* device registers */
    uint32_t regs[R_MAX];

    /* mouse state */
    uint8_t mouse_hid_buffer[4];

    /* keyboard state */
    uint8_t kbd_hid_buffer[8];
};
typedef struct MilkymistSoftUsbState MilkymistSoftUsbState;

static uint64_t softusb_read(void *opaque, hwaddr addr,
                             unsigned size)
{
    MilkymistSoftUsbState *s = opaque;
    uint32_t r = 0;

    addr >>= 2;
    switch (addr) {
    case R_CTRL:
        r = s->regs[addr];
        break;

    default:
        error_report("milkymist_softusb: read access to unknown register 0x"
                TARGET_FMT_plx, addr << 2);
        break;
    }

    trace_milkymist_softusb_memory_read(addr << 2, r);

    return r;
}

static void
softusb_write(void *opaque, hwaddr addr, uint64_t value,
              unsigned size)
{
    MilkymistSoftUsbState *s = opaque;

    trace_milkymist_softusb_memory_write(addr, value);

    addr >>= 2;
    switch (addr) {
    case R_CTRL:
        s->regs[addr] = value;
        break;

    default:
        error_report("milkymist_softusb: write access to unknown register 0x"
                TARGET_FMT_plx, addr << 2);
        break;
    }
}

static const MemoryRegionOps softusb_mmio_ops = {
    .read = softusb_read,
    .write = softusb_write,
    .endianness = DEVICE_NATIVE_ENDIAN,
    .valid = {
        .min_access_size = 4,
        .max_access_size = 4,
    },
};

static inline void softusb_read_dmem(MilkymistSoftUsbState *s,
        uint32_t offset, uint8_t *buf, uint32_t len)
{
    if (offset + len >= s->dmem_size) {
        error_report("milkymist_softusb: read dmem out of bounds "
                "at offset 0x%x, len %d", offset, len);
        memset(buf, 0, len);
        return;
    }

    memcpy(buf, s->dmem_ptr + offset, len);
}

static inline void softusb_write_dmem(MilkymistSoftUsbState *s,
        uint32_t offset, uint8_t *buf, uint32_t len)
{
    if (offset + len >= s->dmem_size) {
        error_report("milkymist_softusb: write dmem out of bounds "
                "at offset 0x%x, len %d", offset, len);
        return;
    }

    memcpy(s->dmem_ptr + offset, buf, len);
}

static void softusb_mouse_changed(MilkymistSoftUsbState *s)
{
    uint8_t m;

    softusb_read_dmem(s, COMLOC_MEVT_PRODUCE, &m, 1);
    trace_milkymist_softusb_mevt(m);
    softusb_write_dmem(s, COMLOC_MEVT_BASE + 4 * m, s->mouse_hid_buffer, 4);
    m = (m + 1) & 0xf;
    softusb_write_dmem(s, COMLOC_MEVT_PRODUCE, &m, 1);

    trace_milkymist_softusb_pulse_irq();
    qemu_irq_pulse(s->irq);
}

static void softusb_kbd_changed(MilkymistSoftUsbState *s)
{
    uint8_t m;

    softusb_read_dmem(s, COMLOC_KEVT_PRODUCE, &m, 1);
    trace_milkymist_softusb_kevt(m);
    softusb_write_dmem(s, COMLOC_KEVT_BASE + 8 * m, s->kbd_hid_buffer, 8);
    m = (m + 1) & 0x7;
    softusb_write_dmem(s, COMLOC_KEVT_PRODUCE, &m, 1);

    trace_milkymist_softusb_pulse_irq();
    qemu_irq_pulse(s->irq);
}

static void softusb_kbd_hid_datain(HIDState *hs)
{
    MilkymistSoftUsbState *s = container_of(hs, MilkymistSoftUsbState, hid_kbd);
    int len;

    /* if device is in reset, do nothing */
    if (s->regs[R_CTRL] & CTRL_RESET) {
        return;
    }

    len = hid_keyboard_poll(hs, s->kbd_hid_buffer, sizeof(s->kbd_hid_buffer));

    if (len == 8) {
        softusb_kbd_changed(s);
    }
}

static void softusb_mouse_hid_datain(HIDState *hs)
{
    MilkymistSoftUsbState *s =
            container_of(hs, MilkymistSoftUsbState, hid_mouse);
    int len;

    /* if device is in reset, do nothing */
    if (s->regs[R_CTRL] & CTRL_RESET) {
        return;
    }

    len = hid_pointer_poll(hs, s->mouse_hid_buffer,
            sizeof(s->mouse_hid_buffer));

    if (len == 4) {
        softusb_mouse_changed(s);
    }
}

static void milkymist_softusb_reset(DeviceState *d)
{
    MilkymistSoftUsbState *s = MILKYMIST_SOFTUSB(d);
    int i;

    for (i = 0; i < R_MAX; i++) {
        s->regs[i] = 0;
    }
    memset(s->kbd_hid_buffer, 0, sizeof(s->kbd_hid_buffer));
    memset(s->mouse_hid_buffer, 0, sizeof(s->mouse_hid_buffer));

    hid_reset(&s->hid_kbd);
    hid_reset(&s->hid_mouse);

    /* defaults */
    s->regs[R_CTRL] = CTRL_RESET;
}

static int milkymist_softusb_init(SysBusDevice *dev)
{
    MilkymistSoftUsbState *s = MILKYMIST_SOFTUSB(dev);

    sysbus_init_irq(dev, &s->irq);

    memory_region_init_io(&s->regs_region, OBJECT(s), &softusb_mmio_ops, s,
                          "milkymist-softusb", R_MAX * 4);
    sysbus_init_mmio(dev, &s->regs_region);

    /* register pmem and dmem */
    memory_region_init_ram(&s->pmem, OBJECT(s), "milkymist-softusb.pmem",
                           s->pmem_size, &error_abort);
    vmstate_register_ram_global(&s->pmem);
    s->pmem_ptr = memory_region_get_ram_ptr(&s->pmem);
    sysbus_init_mmio(dev, &s->pmem);
    memory_region_init_ram(&s->dmem, OBJECT(s), "milkymist-softusb.dmem",
                           s->dmem_size, &error_abort);
    vmstate_register_ram_global(&s->dmem);
    s->dmem_ptr = memory_region_get_ram_ptr(&s->dmem);
    sysbus_init_mmio(dev, &s->dmem);

    hid_init(&s->hid_kbd, HID_KEYBOARD, softusb_kbd_hid_datain);
    hid_init(&s->hid_mouse, HID_MOUSE, softusb_mouse_hid_datain);

    return 0;
}

static const VMStateDescription vmstate_milkymist_softusb = {
    .name = "milkymist-softusb",
    .version_id = 1,
    .minimum_version_id = 1,
    .fields = (VMStateField[]) {
        VMSTATE_UINT32_ARRAY(regs, MilkymistSoftUsbState, R_MAX),
        VMSTATE_HID_KEYBOARD_DEVICE(hid_kbd, MilkymistSoftUsbState),
        VMSTATE_HID_POINTER_DEVICE(hid_mouse, MilkymistSoftUsbState),
        VMSTATE_BUFFER(kbd_hid_buffer, MilkymistSoftUsbState),
        VMSTATE_BUFFER(mouse_hid_buffer, MilkymistSoftUsbState),
        VMSTATE_END_OF_LIST()
    }
};

static Property milkymist_softusb_properties[] = {
    DEFINE_PROP_UINT32("pmem_size", MilkymistSoftUsbState, pmem_size, 0x00001000),
    DEFINE_PROP_UINT32("dmem_size", MilkymistSoftUsbState, dmem_size, 0x00002000),
    DEFINE_PROP_END_OF_LIST(),
};

static void milkymist_softusb_class_init(ObjectClass *klass, void *data)
{
    DeviceClass *dc = DEVICE_CLASS(klass);
    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);

    k->init = milkymist_softusb_init;
    dc->reset = milkymist_softusb_reset;
    dc->vmsd = &vmstate_milkymist_softusb;
    dc->props = milkymist_softusb_properties;
}

static const TypeInfo milkymist_softusb_info = {
    .name          = TYPE_MILKYMIST_SOFTUSB,
    .parent        = TYPE_SYS_BUS_DEVICE,
    .instance_size = sizeof(MilkymistSoftUsbState),
    .class_init    = milkymist_softusb_class_init,
};

static void milkymist_softusb_register_types(void)
{
    type_register_static(&milkymist_softusb_info);
}

type_init(milkymist_softusb_register_types)
Commit	Line	Data
87a381ec MW	1	/*
	2	* QEMU model of the Milkymist SoftUSB block.
	3	*
	4	* Copyright (c) 2010 Michael Walle <michael@walle.cc>
	5	*
	6	* This library is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU Lesser General Public
	8	* License as published by the Free Software Foundation; either
	9	* version 2 of the License, or (at your option) any later version.
	10	*
	11	* This library is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* Lesser General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU Lesser General Public
	17	* License along with this library; if not, see <http://www.gnu.org/licenses/>.
	18	*
	19	*
	20	* Specification available at:
	21	* not available yet
	22	*/
	23
83c9f4ca PB	24	#include "hw/hw.h"
83c9f4ca PB	25	#include "hw/sysbus.h"
87a381ec	26	#include "trace.h"
28ecbaee	27	#include "ui/console.h"
0d09e41a	28	#include "hw/input/hid.h"
1de7afc9	29	#include "qemu/error-report.h"
87a381ec MW	30
	31	enum {
	32	R_CTRL = 0,
	33	R_MAX
	34	};
	35
	36	enum {
	37	CTRL_RESET = (1<<0),
	38	};
	39
	40	#define COMLOC_DEBUG_PRODUCE 0x1000
	41	#define COMLOC_DEBUG_BASE 0x1001
	42	#define COMLOC_MEVT_PRODUCE 0x1101
	43	#define COMLOC_MEVT_BASE 0x1102
	44	#define COMLOC_KEVT_PRODUCE 0x1142
	45	#define COMLOC_KEVT_BASE 0x1143
	46
2a052f6b AF	47	#define TYPE_MILKYMIST_SOFTUSB "milkymist-softusb"
	48	#define MILKYMIST_SOFTUSB(obj) \
	49	OBJECT_CHECK(MilkymistSoftUsbState, (obj), TYPE_MILKYMIST_SOFTUSB)
	50
87a381ec	51	struct MilkymistSoftUsbState {
2a052f6b AF	52	SysBusDevice parent_obj;
2a052f6b AF	53
4c15ba9c MW	54	HIDState hid_kbd;
4c15ba9c MW	55	HIDState hid_mouse;
87a381ec	56
5105ed3b AK	57	MemoryRegion regs_region;
	58	MemoryRegion pmem;
	59	MemoryRegion dmem;
87a381ec MW	60	qemu_irq irq;
87a381ec MW	61
c34e1205 PM	62	void *pmem_ptr;
	63	void *dmem_ptr;
	64
87a381ec	65	/* device properties */
87a381ec	66	uint32_t pmem_size;
87a381ec MW	67	uint32_t dmem_size;
	68
	69	/* device registers */
	70	uint32_t regs[R_MAX];
	71
	72	/* mouse state */
4c15ba9c	73	uint8_t mouse_hid_buffer[4];
87a381ec MW	74
87a381ec MW	75	/* keyboard state */
4c15ba9c	76	uint8_t kbd_hid_buffer[8];
87a381ec MW	77	};
	78	typedef struct MilkymistSoftUsbState MilkymistSoftUsbState;
	79
a8170e5e	80	static uint64_t softusb_read(void *opaque, hwaddr addr,
5105ed3b	81	unsigned size)
87a381ec MW	82	{
	83	MilkymistSoftUsbState *s = opaque;
	84	uint32_t r = 0;
	85
	86	addr >>= 2;
	87	switch (addr) {
	88	case R_CTRL:
	89	r = s->regs[addr];
	90	break;
	91
	92	default:
	93	error_report("milkymist_softusb: read access to unknown register 0x"
	94	TARGET_FMT_plx, addr << 2);
	95	break;
	96	}
	97
	98	trace_milkymist_softusb_memory_read(addr << 2, r);
	99
	100	return r;
	101	}
	102
	103	static void
a8170e5e	104	softusb_write(void *opaque, hwaddr addr, uint64_t value,
5105ed3b	105	unsigned size)
87a381ec MW	106	{
	107	MilkymistSoftUsbState *s = opaque;
	108
	109	trace_milkymist_softusb_memory_write(addr, value);
	110
	111	addr >>= 2;
	112	switch (addr) {
	113	case R_CTRL:
	114	s->regs[addr] = value;
	115	break;
	116
	117	default:
	118	error_report("milkymist_softusb: write access to unknown register 0x"
	119	TARGET_FMT_plx, addr << 2);
	120	break;
	121	}
	122	}
	123
5105ed3b AK	124	static const MemoryRegionOps softusb_mmio_ops = {
	125	.read = softusb_read,
	126	.write = softusb_write,
	127	.endianness = DEVICE_NATIVE_ENDIAN,
	128	.valid = {
	129	.min_access_size = 4,
	130	.max_access_size = 4,
	131	},
87a381ec MW	132	};
	133
	134	static inline void softusb_read_dmem(MilkymistSoftUsbState *s,
	135	uint32_t offset, uint8_t *buf, uint32_t len)
	136	{
	137	if (offset + len >= s->dmem_size) {
	138	error_report("milkymist_softusb: read dmem out of bounds "
6daf194d	139	"at offset 0x%x, len %d", offset, len);
c31bc98e	140	memset(buf, 0, len);
87a381ec MW	141	return;
	142	}
	143
c34e1205	144	memcpy(buf, s->dmem_ptr + offset, len);
87a381ec MW	145	}
	146
	147	static inline void softusb_write_dmem(MilkymistSoftUsbState *s,
	148	uint32_t offset, uint8_t *buf, uint32_t len)
	149	{
	150	if (offset + len >= s->dmem_size) {
	151	error_report("milkymist_softusb: write dmem out of bounds "
6daf194d	152	"at offset 0x%x, len %d", offset, len);
87a381ec MW	153	return;
	154	}
	155
c34e1205	156	memcpy(s->dmem_ptr + offset, buf, len);
87a381ec MW	157	}
87a381ec MW	158
87a381ec MW	159	static void softusb_mouse_changed(MilkymistSoftUsbState *s)
	160	{
	161	uint8_t m;
87a381ec MW	162
	163	softusb_read_dmem(s, COMLOC_MEVT_PRODUCE, &m, 1);
	164	trace_milkymist_softusb_mevt(m);
4c15ba9c	165	softusb_write_dmem(s, COMLOC_MEVT_BASE + 4 * m, s->mouse_hid_buffer, 4);
87a381ec MW	166	m = (m + 1) & 0xf;
	167	softusb_write_dmem(s, COMLOC_MEVT_PRODUCE, &m, 1);
	168
	169	trace_milkymist_softusb_pulse_irq();
	170	qemu_irq_pulse(s->irq);
	171	}
	172
	173	static void softusb_kbd_changed(MilkymistSoftUsbState *s)
	174	{
	175	uint8_t m;
	176
	177	softusb_read_dmem(s, COMLOC_KEVT_PRODUCE, &m, 1);
	178	trace_milkymist_softusb_kevt(m);
4c15ba9c	179	softusb_write_dmem(s, COMLOC_KEVT_BASE + 8 * m, s->kbd_hid_buffer, 8);
87a381ec MW	180	m = (m + 1) & 0x7;
	181	softusb_write_dmem(s, COMLOC_KEVT_PRODUCE, &m, 1);
	182
	183	trace_milkymist_softusb_pulse_irq();
	184	qemu_irq_pulse(s->irq);
	185	}
	186
4c15ba9c	187	static void softusb_kbd_hid_datain(HIDState *hs)
87a381ec	188	{
4c15ba9c MW	189	MilkymistSoftUsbState *s = container_of(hs, MilkymistSoftUsbState, hid_kbd);
4c15ba9c MW	190	int len;
87a381ec MW	191
	192	/* if device is in reset, do nothing */
	193	if (s->regs[R_CTRL] & CTRL_RESET) {
	194	return;
	195	}
	196
4c15ba9c	197	len = hid_keyboard_poll(hs, s->kbd_hid_buffer, sizeof(s->kbd_hid_buffer));
87a381ec	198
4c15ba9c MW	199	if (len == 8) {
	200	softusb_kbd_changed(s);
	201	}
87a381ec MW	202	}
87a381ec MW	203
4c15ba9c	204	static void softusb_mouse_hid_datain(HIDState *hs)
87a381ec	205	{
4c15ba9c MW	206	MilkymistSoftUsbState *s =
	207	container_of(hs, MilkymistSoftUsbState, hid_mouse);
	208	int len;
87a381ec	209
4c15ba9c MW	210	/* if device is in reset, do nothing */
	211	if (s->regs[R_CTRL] & CTRL_RESET) {
	212	return;
	213	}
87a381ec	214
4c15ba9c MW	215	len = hid_pointer_poll(hs, s->mouse_hid_buffer,
4c15ba9c MW	216	sizeof(s->mouse_hid_buffer));
4706ab6c	217
4c15ba9c MW	218	if (len == 4) {
	219	softusb_mouse_changed(s);
	220	}
07771f6f GH	221	}
07771f6f GH	222
87a381ec MW	223	static void milkymist_softusb_reset(DeviceState *d)
87a381ec MW	224	{
2a052f6b	225	MilkymistSoftUsbState *s = MILKYMIST_SOFTUSB(d);
87a381ec MW	226	int i;
	227
	228	for (i = 0; i < R_MAX; i++) {
	229	s->regs[i] = 0;
	230	}
4c15ba9c MW	231	memset(s->kbd_hid_buffer, 0, sizeof(s->kbd_hid_buffer));
	232	memset(s->mouse_hid_buffer, 0, sizeof(s->mouse_hid_buffer));
	233
	234	hid_reset(&s->hid_kbd);
	235	hid_reset(&s->hid_mouse);
87a381ec MW	236
	237	/* defaults */
	238	s->regs[R_CTRL] = CTRL_RESET;
	239	}
	240
	241	static int milkymist_softusb_init(SysBusDevice *dev)
	242	{
2a052f6b	243	MilkymistSoftUsbState *s = MILKYMIST_SOFTUSB(dev);
87a381ec MW	244
	245	sysbus_init_irq(dev, &s->irq);
	246
1437c94b	247	memory_region_init_io(&s->regs_region, OBJECT(s), &softusb_mmio_ops, s,
5105ed3b	248	"milkymist-softusb", R_MAX * 4);
750ecd44	249	sysbus_init_mmio(dev, &s->regs_region);
87a381ec MW	250
87a381ec MW	251	/* register pmem and dmem */
1437c94b	252	memory_region_init_ram(&s->pmem, OBJECT(s), "milkymist-softusb.pmem",
49946538	253	s->pmem_size, &error_abort);
c5705a77	254	vmstate_register_ram_global(&s->pmem);
c34e1205 PM	255	s->pmem_ptr = memory_region_get_ram_ptr(&s->pmem);
c34e1205 PM	256	sysbus_init_mmio(dev, &s->pmem);
1437c94b	257	memory_region_init_ram(&s->dmem, OBJECT(s), "milkymist-softusb.dmem",
49946538	258	s->dmem_size, &error_abort);
c5705a77	259	vmstate_register_ram_global(&s->dmem);
c34e1205 PM	260	s->dmem_ptr = memory_region_get_ram_ptr(&s->dmem);
c34e1205 PM	261	sysbus_init_mmio(dev, &s->dmem);
87a381ec	262
4c15ba9c MW	263	hid_init(&s->hid_kbd, HID_KEYBOARD, softusb_kbd_hid_datain);
4c15ba9c MW	264	hid_init(&s->hid_mouse, HID_MOUSE, softusb_mouse_hid_datain);
87a381ec MW	265
	266	return 0;
	267	}
	268
	269	static const VMStateDescription vmstate_milkymist_softusb = {
	270	.name = "milkymist-softusb",
	271	.version_id = 1,
	272	.minimum_version_id = 1,
35d08458	273	.fields = (VMStateField[]) {
87a381ec	274	VMSTATE_UINT32_ARRAY(regs, MilkymistSoftUsbState, R_MAX),
4c15ba9c MW	275	VMSTATE_HID_KEYBOARD_DEVICE(hid_kbd, MilkymistSoftUsbState),
	276	VMSTATE_HID_POINTER_DEVICE(hid_mouse, MilkymistSoftUsbState),
	277	VMSTATE_BUFFER(kbd_hid_buffer, MilkymistSoftUsbState),
	278	VMSTATE_BUFFER(mouse_hid_buffer, MilkymistSoftUsbState),
87a381ec MW	279	VMSTATE_END_OF_LIST()
	280	}
	281	};
	282
999e12bb	283	static Property milkymist_softusb_properties[] = {
999e12bb	284	DEFINE_PROP_UINT32("pmem_size", MilkymistSoftUsbState, pmem_size, 0x00001000),
999e12bb AL	285	DEFINE_PROP_UINT32("dmem_size", MilkymistSoftUsbState, dmem_size, 0x00002000),
	286	DEFINE_PROP_END_OF_LIST(),
	287	};
	288
	289	static void milkymist_softusb_class_init(ObjectClass klass, void data)
	290	{
39bffca2	291	DeviceClass *dc = DEVICE_CLASS(klass);
999e12bb AL	292	SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
	293
	294	k->init = milkymist_softusb_init;
39bffca2 AL	295	dc->reset = milkymist_softusb_reset;
	296	dc->vmsd = &vmstate_milkymist_softusb;
	297	dc->props = milkymist_softusb_properties;
999e12bb AL	298	}
999e12bb AL	299
8c43a6f0	300	static const TypeInfo milkymist_softusb_info = {
2a052f6b	301	.name = TYPE_MILKYMIST_SOFTUSB,
39bffca2 AL	302	.parent = TYPE_SYS_BUS_DEVICE,
	303	.instance_size = sizeof(MilkymistSoftUsbState),
	304	.class_init = milkymist_softusb_class_init,
87a381ec MW	305	};
87a381ec MW	306
83f7d43a	307	static void milkymist_softusb_register_types(void)
87a381ec	308	{
39bffca2	309	type_register_static(&milkymist_softusb_info);
87a381ec MW	310	}
87a381ec MW	311
83f7d43a	312	type_init(milkymist_softusb_register_types)