mirror of https://gitee.com/openkylin/qemu.git
558 lines
17 KiB
C
558 lines
17 KiB
C
/*
|
|
* QEMU Bluetooth HCI USB Transport Layer v1.0
|
|
*
|
|
* Copyright (C) 2007 OpenMoko, Inc.
|
|
* Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 or
|
|
* (at your option) version 3 of the License.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "qemu-common.h"
|
|
#include "hw/usb.h"
|
|
#include "hw/usb/desc.h"
|
|
#include "net.h"
|
|
#include "hw/bt.h"
|
|
|
|
struct USBBtState {
|
|
USBDevice dev;
|
|
struct HCIInfo *hci;
|
|
|
|
int config;
|
|
|
|
#define CFIFO_LEN_MASK 255
|
|
#define DFIFO_LEN_MASK 4095
|
|
struct usb_hci_in_fifo_s {
|
|
uint8_t data[(DFIFO_LEN_MASK + 1) * 2];
|
|
struct {
|
|
uint8_t *data;
|
|
int len;
|
|
} fifo[CFIFO_LEN_MASK + 1];
|
|
int dstart, dlen, dsize, start, len;
|
|
} evt, acl, sco;
|
|
|
|
struct usb_hci_out_fifo_s {
|
|
uint8_t data[4096];
|
|
int len;
|
|
} outcmd, outacl, outsco;
|
|
};
|
|
|
|
#define USB_EVT_EP 1
|
|
#define USB_ACL_EP 2
|
|
#define USB_SCO_EP 3
|
|
|
|
enum {
|
|
STR_MANUFACTURER = 1,
|
|
STR_SERIALNUMBER,
|
|
};
|
|
|
|
static const USBDescStrings desc_strings = {
|
|
[STR_MANUFACTURER] = "QEMU " QEMU_VERSION,
|
|
[STR_SERIALNUMBER] = "1",
|
|
};
|
|
|
|
static const USBDescIface desc_iface_bluetooth[] = {
|
|
{
|
|
.bInterfaceNumber = 0,
|
|
.bNumEndpoints = 3,
|
|
.bInterfaceClass = 0xe0, /* Wireless */
|
|
.bInterfaceSubClass = 0x01, /* Radio Frequency */
|
|
.bInterfaceProtocol = 0x01, /* Bluetooth */
|
|
.eps = (USBDescEndpoint[]) {
|
|
{
|
|
.bEndpointAddress = USB_DIR_IN | USB_EVT_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_INT,
|
|
.wMaxPacketSize = 0x10,
|
|
.bInterval = 0x02,
|
|
},
|
|
{
|
|
.bEndpointAddress = USB_DIR_OUT | USB_ACL_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
|
.wMaxPacketSize = 0x40,
|
|
.bInterval = 0x0a,
|
|
},
|
|
{
|
|
.bEndpointAddress = USB_DIR_IN | USB_ACL_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_BULK,
|
|
.wMaxPacketSize = 0x40,
|
|
.bInterval = 0x0a,
|
|
},
|
|
},
|
|
},{
|
|
.bInterfaceNumber = 1,
|
|
.bAlternateSetting = 0,
|
|
.bNumEndpoints = 2,
|
|
.bInterfaceClass = 0xe0, /* Wireless */
|
|
.bInterfaceSubClass = 0x01, /* Radio Frequency */
|
|
.bInterfaceProtocol = 0x01, /* Bluetooth */
|
|
.eps = (USBDescEndpoint[]) {
|
|
{
|
|
.bEndpointAddress = USB_DIR_OUT | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0,
|
|
.bInterval = 0x01,
|
|
},
|
|
{
|
|
.bEndpointAddress = USB_DIR_IN | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0,
|
|
.bInterval = 0x01,
|
|
},
|
|
},
|
|
},{
|
|
.bInterfaceNumber = 1,
|
|
.bAlternateSetting = 1,
|
|
.bNumEndpoints = 2,
|
|
.bInterfaceClass = 0xe0, /* Wireless */
|
|
.bInterfaceSubClass = 0x01, /* Radio Frequency */
|
|
.bInterfaceProtocol = 0x01, /* Bluetooth */
|
|
.eps = (USBDescEndpoint[]) {
|
|
{
|
|
.bEndpointAddress = USB_DIR_OUT | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0x09,
|
|
.bInterval = 0x01,
|
|
},
|
|
{
|
|
.bEndpointAddress = USB_DIR_IN | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0x09,
|
|
.bInterval = 0x01,
|
|
},
|
|
},
|
|
},{
|
|
.bInterfaceNumber = 1,
|
|
.bAlternateSetting = 2,
|
|
.bNumEndpoints = 2,
|
|
.bInterfaceClass = 0xe0, /* Wireless */
|
|
.bInterfaceSubClass = 0x01, /* Radio Frequency */
|
|
.bInterfaceProtocol = 0x01, /* Bluetooth */
|
|
.eps = (USBDescEndpoint[]) {
|
|
{
|
|
.bEndpointAddress = USB_DIR_OUT | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0x11,
|
|
.bInterval = 0x01,
|
|
},
|
|
{
|
|
.bEndpointAddress = USB_DIR_IN | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0x11,
|
|
.bInterval = 0x01,
|
|
},
|
|
},
|
|
},{
|
|
.bInterfaceNumber = 1,
|
|
.bAlternateSetting = 3,
|
|
.bNumEndpoints = 2,
|
|
.bInterfaceClass = 0xe0, /* Wireless */
|
|
.bInterfaceSubClass = 0x01, /* Radio Frequency */
|
|
.bInterfaceProtocol = 0x01, /* Bluetooth */
|
|
.eps = (USBDescEndpoint[]) {
|
|
{
|
|
.bEndpointAddress = USB_DIR_OUT | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0x19,
|
|
.bInterval = 0x01,
|
|
},
|
|
{
|
|
.bEndpointAddress = USB_DIR_IN | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0x19,
|
|
.bInterval = 0x01,
|
|
},
|
|
},
|
|
},{
|
|
.bInterfaceNumber = 1,
|
|
.bAlternateSetting = 4,
|
|
.bNumEndpoints = 2,
|
|
.bInterfaceClass = 0xe0, /* Wireless */
|
|
.bInterfaceSubClass = 0x01, /* Radio Frequency */
|
|
.bInterfaceProtocol = 0x01, /* Bluetooth */
|
|
.eps = (USBDescEndpoint[]) {
|
|
{
|
|
.bEndpointAddress = USB_DIR_OUT | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0x21,
|
|
.bInterval = 0x01,
|
|
},
|
|
{
|
|
.bEndpointAddress = USB_DIR_IN | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0x21,
|
|
.bInterval = 0x01,
|
|
},
|
|
},
|
|
},{
|
|
.bInterfaceNumber = 1,
|
|
.bAlternateSetting = 5,
|
|
.bNumEndpoints = 2,
|
|
.bInterfaceClass = 0xe0, /* Wireless */
|
|
.bInterfaceSubClass = 0x01, /* Radio Frequency */
|
|
.bInterfaceProtocol = 0x01, /* Bluetooth */
|
|
.eps = (USBDescEndpoint[]) {
|
|
{
|
|
.bEndpointAddress = USB_DIR_OUT | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0x31,
|
|
.bInterval = 0x01,
|
|
},
|
|
{
|
|
.bEndpointAddress = USB_DIR_IN | USB_SCO_EP,
|
|
.bmAttributes = USB_ENDPOINT_XFER_ISOC,
|
|
.wMaxPacketSize = 0x31,
|
|
.bInterval = 0x01,
|
|
},
|
|
},
|
|
}
|
|
};
|
|
|
|
static const USBDescDevice desc_device_bluetooth = {
|
|
.bcdUSB = 0x0110,
|
|
.bDeviceClass = 0xe0, /* Wireless */
|
|
.bDeviceSubClass = 0x01, /* Radio Frequency */
|
|
.bDeviceProtocol = 0x01, /* Bluetooth */
|
|
.bMaxPacketSize0 = 64,
|
|
.bNumConfigurations = 1,
|
|
.confs = (USBDescConfig[]) {
|
|
{
|
|
.bNumInterfaces = 2,
|
|
.bConfigurationValue = 1,
|
|
.bmAttributes = 0xc0,
|
|
.bMaxPower = 0,
|
|
.nif = ARRAY_SIZE(desc_iface_bluetooth),
|
|
.ifs = desc_iface_bluetooth,
|
|
},
|
|
},
|
|
};
|
|
|
|
static const USBDesc desc_bluetooth = {
|
|
.id = {
|
|
.idVendor = 0x0a12,
|
|
.idProduct = 0x0001,
|
|
.bcdDevice = 0x1958,
|
|
.iManufacturer = STR_MANUFACTURER,
|
|
.iProduct = 0,
|
|
.iSerialNumber = STR_SERIALNUMBER,
|
|
},
|
|
.full = &desc_device_bluetooth,
|
|
.str = desc_strings,
|
|
};
|
|
|
|
static void usb_bt_fifo_reset(struct usb_hci_in_fifo_s *fifo)
|
|
{
|
|
fifo->dstart = 0;
|
|
fifo->dlen = 0;
|
|
fifo->dsize = DFIFO_LEN_MASK + 1;
|
|
fifo->start = 0;
|
|
fifo->len = 0;
|
|
}
|
|
|
|
static void usb_bt_fifo_enqueue(struct usb_hci_in_fifo_s *fifo,
|
|
const uint8_t *data, int len)
|
|
{
|
|
int off = fifo->dstart + fifo->dlen;
|
|
uint8_t *buf;
|
|
|
|
fifo->dlen += len;
|
|
if (off <= DFIFO_LEN_MASK) {
|
|
if (off + len > DFIFO_LEN_MASK + 1 &&
|
|
(fifo->dsize = off + len) > (DFIFO_LEN_MASK + 1) * 2) {
|
|
fprintf(stderr, "%s: can't alloc %i bytes\n", __FUNCTION__, len);
|
|
exit(-1);
|
|
}
|
|
buf = fifo->data + off;
|
|
} else {
|
|
if (fifo->dlen > fifo->dsize) {
|
|
fprintf(stderr, "%s: can't alloc %i bytes\n", __FUNCTION__, len);
|
|
exit(-1);
|
|
}
|
|
buf = fifo->data + off - fifo->dsize;
|
|
}
|
|
|
|
off = (fifo->start + fifo->len ++) & CFIFO_LEN_MASK;
|
|
fifo->fifo[off].data = memcpy(buf, data, len);
|
|
fifo->fifo[off].len = len;
|
|
}
|
|
|
|
static inline int usb_bt_fifo_dequeue(struct usb_hci_in_fifo_s *fifo,
|
|
USBPacket *p)
|
|
{
|
|
int len;
|
|
|
|
if (likely(!fifo->len))
|
|
return USB_RET_STALL;
|
|
|
|
len = MIN(p->iov.size, fifo->fifo[fifo->start].len);
|
|
usb_packet_copy(p, fifo->fifo[fifo->start].data, len);
|
|
if (len == p->iov.size) {
|
|
fifo->fifo[fifo->start].len -= len;
|
|
fifo->fifo[fifo->start].data += len;
|
|
} else {
|
|
fifo->start ++;
|
|
fifo->start &= CFIFO_LEN_MASK;
|
|
fifo->len --;
|
|
}
|
|
|
|
fifo->dstart += len;
|
|
fifo->dlen -= len;
|
|
if (fifo->dstart >= fifo->dsize) {
|
|
fifo->dstart = 0;
|
|
fifo->dsize = DFIFO_LEN_MASK + 1;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
static inline void usb_bt_fifo_out_enqueue(struct USBBtState *s,
|
|
struct usb_hci_out_fifo_s *fifo,
|
|
void (*send)(struct HCIInfo *, const uint8_t *, int),
|
|
int (*complete)(const uint8_t *, int),
|
|
USBPacket *p)
|
|
{
|
|
usb_packet_copy(p, fifo->data + fifo->len, p->iov.size);
|
|
fifo->len += p->iov.size;
|
|
if (complete(fifo->data, fifo->len)) {
|
|
send(s->hci, fifo->data, fifo->len);
|
|
fifo->len = 0;
|
|
}
|
|
|
|
/* TODO: do we need to loop? */
|
|
}
|
|
|
|
static int usb_bt_hci_cmd_complete(const uint8_t *data, int len)
|
|
{
|
|
len -= HCI_COMMAND_HDR_SIZE;
|
|
return len >= 0 &&
|
|
len >= ((struct hci_command_hdr *) data)->plen;
|
|
}
|
|
|
|
static int usb_bt_hci_acl_complete(const uint8_t *data, int len)
|
|
{
|
|
len -= HCI_ACL_HDR_SIZE;
|
|
return len >= 0 &&
|
|
len >= le16_to_cpu(((struct hci_acl_hdr *) data)->dlen);
|
|
}
|
|
|
|
static int usb_bt_hci_sco_complete(const uint8_t *data, int len)
|
|
{
|
|
len -= HCI_SCO_HDR_SIZE;
|
|
return len >= 0 &&
|
|
len >= ((struct hci_sco_hdr *) data)->dlen;
|
|
}
|
|
|
|
static void usb_bt_handle_reset(USBDevice *dev)
|
|
{
|
|
struct USBBtState *s = (struct USBBtState *) dev->opaque;
|
|
|
|
usb_bt_fifo_reset(&s->evt);
|
|
usb_bt_fifo_reset(&s->acl);
|
|
usb_bt_fifo_reset(&s->sco);
|
|
s->outcmd.len = 0;
|
|
s->outacl.len = 0;
|
|
s->outsco.len = 0;
|
|
}
|
|
|
|
static int usb_bt_handle_control(USBDevice *dev, USBPacket *p,
|
|
int request, int value, int index, int length, uint8_t *data)
|
|
{
|
|
struct USBBtState *s = (struct USBBtState *) dev->opaque;
|
|
int ret;
|
|
|
|
ret = usb_desc_handle_control(dev, p, request, value, index, length, data);
|
|
if (ret >= 0) {
|
|
switch (request) {
|
|
case DeviceRequest | USB_REQ_GET_CONFIGURATION:
|
|
s->config = 0;
|
|
break;
|
|
case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
|
|
s->config = 1;
|
|
usb_bt_fifo_reset(&s->evt);
|
|
usb_bt_fifo_reset(&s->acl);
|
|
usb_bt_fifo_reset(&s->sco);
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
ret = 0;
|
|
switch (request) {
|
|
case InterfaceRequest | USB_REQ_GET_STATUS:
|
|
case EndpointRequest | USB_REQ_GET_STATUS:
|
|
data[0] = 0x00;
|
|
data[1] = 0x00;
|
|
ret = 2;
|
|
break;
|
|
case InterfaceOutRequest | USB_REQ_CLEAR_FEATURE:
|
|
case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
|
|
goto fail;
|
|
case InterfaceOutRequest | USB_REQ_SET_FEATURE:
|
|
case EndpointOutRequest | USB_REQ_SET_FEATURE:
|
|
goto fail;
|
|
break;
|
|
case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_DEVICE) << 8):
|
|
if (s->config)
|
|
usb_bt_fifo_out_enqueue(s, &s->outcmd, s->hci->cmd_send,
|
|
usb_bt_hci_cmd_complete, p);
|
|
break;
|
|
default:
|
|
fail:
|
|
ret = USB_RET_STALL;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int usb_bt_handle_data(USBDevice *dev, USBPacket *p)
|
|
{
|
|
struct USBBtState *s = (struct USBBtState *) dev->opaque;
|
|
int ret = 0;
|
|
|
|
if (!s->config)
|
|
goto fail;
|
|
|
|
switch (p->pid) {
|
|
case USB_TOKEN_IN:
|
|
switch (p->ep->nr) {
|
|
case USB_EVT_EP:
|
|
ret = usb_bt_fifo_dequeue(&s->evt, p);
|
|
break;
|
|
|
|
case USB_ACL_EP:
|
|
ret = usb_bt_fifo_dequeue(&s->acl, p);
|
|
break;
|
|
|
|
case USB_SCO_EP:
|
|
ret = usb_bt_fifo_dequeue(&s->sco, p);
|
|
break;
|
|
|
|
default:
|
|
goto fail;
|
|
}
|
|
break;
|
|
|
|
case USB_TOKEN_OUT:
|
|
switch (p->ep->nr) {
|
|
case USB_ACL_EP:
|
|
usb_bt_fifo_out_enqueue(s, &s->outacl, s->hci->acl_send,
|
|
usb_bt_hci_acl_complete, p);
|
|
break;
|
|
|
|
case USB_SCO_EP:
|
|
usb_bt_fifo_out_enqueue(s, &s->outsco, s->hci->sco_send,
|
|
usb_bt_hci_sco_complete, p);
|
|
break;
|
|
|
|
default:
|
|
goto fail;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
fail:
|
|
ret = USB_RET_STALL;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void usb_bt_out_hci_packet_event(void *opaque,
|
|
const uint8_t *data, int len)
|
|
{
|
|
struct USBBtState *s = (struct USBBtState *) opaque;
|
|
|
|
usb_bt_fifo_enqueue(&s->evt, data, len);
|
|
}
|
|
|
|
static void usb_bt_out_hci_packet_acl(void *opaque,
|
|
const uint8_t *data, int len)
|
|
{
|
|
struct USBBtState *s = (struct USBBtState *) opaque;
|
|
|
|
usb_bt_fifo_enqueue(&s->acl, data, len);
|
|
}
|
|
|
|
static void usb_bt_handle_destroy(USBDevice *dev)
|
|
{
|
|
struct USBBtState *s = (struct USBBtState *) dev->opaque;
|
|
|
|
s->hci->opaque = NULL;
|
|
s->hci->evt_recv = NULL;
|
|
s->hci->acl_recv = NULL;
|
|
}
|
|
|
|
static int usb_bt_initfn(USBDevice *dev)
|
|
{
|
|
usb_desc_init(dev);
|
|
return 0;
|
|
}
|
|
|
|
USBDevice *usb_bt_init(USBBus *bus, HCIInfo *hci)
|
|
{
|
|
USBDevice *dev;
|
|
struct USBBtState *s;
|
|
|
|
if (!hci)
|
|
return NULL;
|
|
dev = usb_create_simple(bus, "usb-bt-dongle");
|
|
if (!dev) {
|
|
return NULL;
|
|
}
|
|
s = DO_UPCAST(struct USBBtState, dev, dev);
|
|
s->dev.opaque = s;
|
|
|
|
s->hci = hci;
|
|
s->hci->opaque = s;
|
|
s->hci->evt_recv = usb_bt_out_hci_packet_event;
|
|
s->hci->acl_recv = usb_bt_out_hci_packet_acl;
|
|
|
|
usb_bt_handle_reset(&s->dev);
|
|
|
|
return dev;
|
|
}
|
|
|
|
static const VMStateDescription vmstate_usb_bt = {
|
|
.name = "usb-bt",
|
|
.unmigratable = 1,
|
|
};
|
|
|
|
static void usb_bt_class_initfn(ObjectClass *klass, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
|
USBDeviceClass *uc = USB_DEVICE_CLASS(klass);
|
|
|
|
uc->init = usb_bt_initfn;
|
|
uc->product_desc = "QEMU BT dongle";
|
|
uc->usb_desc = &desc_bluetooth;
|
|
uc->handle_reset = usb_bt_handle_reset;
|
|
uc->handle_control = usb_bt_handle_control;
|
|
uc->handle_data = usb_bt_handle_data;
|
|
uc->handle_destroy = usb_bt_handle_destroy;
|
|
dc->vmsd = &vmstate_usb_bt;
|
|
}
|
|
|
|
static TypeInfo bt_info = {
|
|
.name = "usb-bt-dongle",
|
|
.parent = TYPE_USB_DEVICE,
|
|
.instance_size = sizeof(struct USBBtState),
|
|
.class_init = usb_bt_class_initfn,
|
|
};
|
|
|
|
static void usb_bt_register_types(void)
|
|
{
|
|
type_register_static(&bt_info);
|
|
}
|
|
|
|
type_init(usb_bt_register_types)
|