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authorbalrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>2008-09-29 00:40:44 +0000
committerbalrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>2008-09-29 00:40:44 +0000
commite6a6d5abc680ab7872c0faeb91326654379c12cf (patch)
tree1e4a03c3b80bd1bd76996109bc8fbf8f65d8cb8e /hw/usb-bt.c
parentab2b6f507ded382df734fe6a237ec56e2f421de4 (diff)
Emulate a USB bluetooth dongle (or HCI Transport layer).
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5349 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/usb-bt.c')
-rw-r--r--hw/usb-bt.c647
1 files changed, 647 insertions, 0 deletions
diff --git a/hw/usb-bt.c b/hw/usb-bt.c
new file mode 100644
index 000000000..b9b3463c0
--- /dev/null
+++ b/hw/usb-bt.c
@@ -0,0 +1,647 @@
+/*
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include "qemu-common.h"
+#include "usb.h"
+#include "net.h"
+#include "bt.h"
+
+struct USBBtState {
+ USBDevice dev;
+ struct HCIInfo *hci;
+
+ int altsetting;
+ 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
+
+static const uint8_t qemu_bt_dev_descriptor[] = {
+ 0x12, /* u8 bLength; */
+ USB_DT_DEVICE, /* u8 bDescriptorType; Device */
+ 0x10, 0x01, /* u16 bcdUSB; v1.10 */
+
+ 0xe0, /* u8 bDeviceClass; Wireless */
+ 0x01, /* u8 bDeviceSubClass; Radio Frequency */
+ 0x01, /* u8 bDeviceProtocol; Bluetooth */
+ 0x40, /* u8 bMaxPacketSize0; 64 Bytes */
+
+ 0x12, 0x0a, /* u16 idVendor; */
+ 0x01, 0x00, /* u16 idProduct; Bluetooth Dongle (HCI mode) */
+ 0x58, 0x19, /* u16 bcdDevice; (some devices have 0x48, 0x02) */
+
+ 0x00, /* u8 iManufacturer; */
+ 0x00, /* u8 iProduct; */
+ 0x00, /* u8 iSerialNumber; */
+ 0x01, /* u8 bNumConfigurations; */
+};
+
+static const uint8_t qemu_bt_config_descriptor[] = {
+ /* one configuration */
+ 0x09, /* u8 bLength; */
+ USB_DT_CONFIG, /* u8 bDescriptorType; */
+ 0xb1, 0x00, /* u16 wTotalLength; */
+ 0x02, /* u8 bNumInterfaces; (2) */
+ 0x01, /* u8 bConfigurationValue; */
+ 0x00, /* u8 iConfiguration; */
+ 0xc0, /* u8 bmAttributes;
+ Bit 7: must be set,
+ 6: Self-powered,
+ 5: Remote wakeup,
+ 4..0: resvd */
+ 0x00, /* u8 MaxPower; */
+
+ /* USB 1.1:
+ * USB 2.0, single TT organization (mandatory):
+ * one interface, protocol 0
+ *
+ * USB 2.0, multiple TT organization (optional):
+ * two interfaces, protocols 1 (like single TT)
+ * and 2 (multiple TT mode) ... config is
+ * sometimes settable
+ * NOT IMPLEMENTED
+ */
+
+ /* interface one */
+ 0x09, /* u8 if_bLength; */
+ USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
+ 0x00, /* u8 if_bInterfaceNumber; */
+ 0x00, /* u8 if_bAlternateSetting; */
+ 0x03, /* u8 if_bNumEndpoints; */
+ 0xe0, /* u8 if_bInterfaceClass; Wireless */
+ 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
+ 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
+ 0x00, /* u8 if_iInterface; */
+
+ /* endpoint one */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_IN | USB_EVT_EP, /* u8 ep_bEndpointAddress; */
+ 0x03, /* u8 ep_bmAttributes; Interrupt */
+ 0x10, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x02, /* u8 ep_bInterval; */
+
+ /* endpoint two */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_OUT | USB_ACL_EP, /* u8 ep_bEndpointAddress; */
+ 0x02, /* u8 ep_bmAttributes; Bulk */
+ 0x40, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* endpoint three */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_IN | USB_ACL_EP, /* u8 ep_bEndpointAddress; */
+ 0x02, /* u8 ep_bmAttributes; Bulk */
+ 0x40, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* interface two setting one */
+ 0x09, /* u8 if_bLength; */
+ USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
+ 0x01, /* u8 if_bInterfaceNumber; */
+ 0x00, /* u8 if_bAlternateSetting; */
+ 0x02, /* u8 if_bNumEndpoints; */
+ 0xe0, /* u8 if_bInterfaceClass; Wireless */
+ 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
+ 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
+ 0x00, /* u8 if_iInterface; */
+
+ /* endpoint one */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x00, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* endpoint two */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x00, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* interface two setting two */
+ 0x09, /* u8 if_bLength; */
+ USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
+ 0x01, /* u8 if_bInterfaceNumber; */
+ 0x01, /* u8 if_bAlternateSetting; */
+ 0x02, /* u8 if_bNumEndpoints; */
+ 0xe0, /* u8 if_bInterfaceClass; Wireless */
+ 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
+ 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
+ 0x00, /* u8 if_iInterface; */
+
+ /* endpoint one */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x09, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* endpoint two */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x09, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* interface two setting three */
+ 0x09, /* u8 if_bLength; */
+ USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
+ 0x01, /* u8 if_bInterfaceNumber; */
+ 0x02, /* u8 if_bAlternateSetting; */
+ 0x02, /* u8 if_bNumEndpoints; */
+ 0xe0, /* u8 if_bInterfaceClass; Wireless */
+ 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
+ 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
+ 0x00, /* u8 if_iInterface; */
+
+ /* endpoint one */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x11, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* endpoint two */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x11, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* interface two setting four */
+ 0x09, /* u8 if_bLength; */
+ USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
+ 0x01, /* u8 if_bInterfaceNumber; */
+ 0x03, /* u8 if_bAlternateSetting; */
+ 0x02, /* u8 if_bNumEndpoints; */
+ 0xe0, /* u8 if_bInterfaceClass; Wireless */
+ 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
+ 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
+ 0x00, /* u8 if_iInterface; */
+
+ /* endpoint one */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x19, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* endpoint two */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x19, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* interface two setting five */
+ 0x09, /* u8 if_bLength; */
+ USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
+ 0x01, /* u8 if_bInterfaceNumber; */
+ 0x04, /* u8 if_bAlternateSetting; */
+ 0x02, /* u8 if_bNumEndpoints; */
+ 0xe0, /* u8 if_bInterfaceClass; Wireless */
+ 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
+ 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
+ 0x00, /* u8 if_iInterface; */
+
+ /* endpoint one */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x21, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* endpoint two */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x21, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* interface two setting six */
+ 0x09, /* u8 if_bLength; */
+ USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
+ 0x01, /* u8 if_bInterfaceNumber; */
+ 0x05, /* u8 if_bAlternateSetting; */
+ 0x02, /* u8 if_bNumEndpoints; */
+ 0xe0, /* u8 if_bInterfaceClass; Wireless */
+ 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
+ 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
+ 0x00, /* u8 if_iInterface; */
+
+ /* endpoint one */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x31, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* endpoint two */
+ 0x07, /* u8 ep_bLength; */
+ USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
+ USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
+ 0x01, /* u8 ep_bmAttributes; Isochronous */
+ 0x31, 0x00, /* u16 ep_wMaxPacketSize; */
+ 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
+
+ /* If implemented, the DFU interface descriptor goes here with no
+ * endpoints or alternative settings. */
+};
+
+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->len, fifo->fifo[fifo->start].len);
+ memcpy(p->data, fifo->fifo[fifo->start].data, len);
+ if (len == p->len) {
+ 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 void inline 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),
+ const uint8_t *data, int len)
+{
+ if (fifo->len) {
+ memcpy(fifo->data + fifo->len, data, len);
+ fifo->len += len;
+ if (complete(fifo->data, fifo->len)) {
+ send(s->hci, fifo->data, fifo->len);
+ fifo->len = 0;
+ }
+ } else if (complete(data, len))
+ send(s->hci, data, len);
+ else {
+ memcpy(fifo->data, data, len);
+ fifo->len = len;
+ }
+
+ /* 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;
+ s->altsetting = 0;
+}
+
+static int usb_bt_handle_control(USBDevice *dev, int request, int value,
+ int index, int length, uint8_t *data)
+{
+ struct USBBtState *s = (struct USBBtState *) dev->opaque;
+ int ret = 0;
+
+ switch (request) {
+ case DeviceRequest | USB_REQ_GET_STATUS:
+ case InterfaceRequest | USB_REQ_GET_STATUS:
+ case EndpointRequest | USB_REQ_GET_STATUS:
+ data[0] = (1 << USB_DEVICE_SELF_POWERED) |
+ (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
+ data[1] = 0x00;
+ ret = 2;
+ break;
+ case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
+ case InterfaceOutRequest | USB_REQ_CLEAR_FEATURE:
+ case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
+ if (value == USB_DEVICE_REMOTE_WAKEUP) {
+ dev->remote_wakeup = 0;
+ } else {
+ goto fail;
+ }
+ ret = 0;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_FEATURE:
+ case InterfaceOutRequest | USB_REQ_SET_FEATURE:
+ case EndpointOutRequest | USB_REQ_SET_FEATURE:
+ if (value == USB_DEVICE_REMOTE_WAKEUP) {
+ dev->remote_wakeup = 1;
+ } else {
+ goto fail;
+ }
+ ret = 0;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_ADDRESS:
+ dev->addr = value;
+ ret = 0;
+ break;
+ case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
+ switch (value >> 8) {
+ case USB_DT_DEVICE:
+ ret = sizeof(qemu_bt_dev_descriptor);
+ memcpy(data, qemu_bt_dev_descriptor, ret);
+ break;
+ case USB_DT_CONFIG:
+ ret = sizeof(qemu_bt_config_descriptor);
+ memcpy(data, qemu_bt_config_descriptor, ret);
+ break;
+ case USB_DT_STRING:
+ switch(value & 0xff) {
+ case 0:
+ /* language ids */
+ data[0] = 4;
+ data[1] = 3;
+ data[2] = 0x09;
+ data[3] = 0x04;
+ ret = 4;
+ break;
+ default:
+ goto fail;
+ }
+ break;
+ default:
+ goto fail;
+ }
+ break;
+ case DeviceRequest | USB_REQ_GET_CONFIGURATION:
+ data[0] = qemu_bt_config_descriptor[0x5];
+ ret = 1;
+ s->config = 0;
+ break;
+ case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
+ ret = 0;
+ if (value != qemu_bt_config_descriptor[0x5] && value != 0) {
+ printf("%s: Wrong SET_CONFIGURATION request (%i)\n",
+ __FUNCTION__, value);
+ goto fail;
+ }
+ s->config = 1;
+ usb_bt_fifo_reset(&s->evt);
+ usb_bt_fifo_reset(&s->acl);
+ usb_bt_fifo_reset(&s->sco);
+ break;
+ case InterfaceRequest | USB_REQ_GET_INTERFACE:
+ if (value != 0 || (index & ~1) || length != 1)
+ goto fail;
+ if (index == 1)
+ data[0] = s->altsetting;
+ else
+ data[0] = 0;
+ ret = 1;
+ break;
+ case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
+ if ((index & ~1) || length != 0 ||
+ (index == 1 && (value < 0 || value > 4)) ||
+ (index == 0 && value != 0)) {
+ printf("%s: Wrong SET_INTERFACE request (%i, %i)\n",
+ __FUNCTION__, index, value);
+ goto fail;
+ }
+ s->altsetting = value;
+ ret = 0;
+ 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, data, length);
+ 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->devep & 0xf) {
+ 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->devep & 0xf) {
+ case USB_ACL_EP:
+ usb_bt_fifo_out_enqueue(s, &s->outacl, s->hci->acl_send,
+ usb_bt_hci_acl_complete, p->data, p->len);
+ break;
+
+ case USB_SCO_EP:
+ usb_bt_fifo_out_enqueue(s, &s->outsco, s->hci->sco_send,
+ usb_bt_hci_sco_complete, p->data, p->len);
+ 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 = 0;
+ s->hci->evt_recv = 0;
+ s->hci->acl_recv = 0;
+ qemu_free(s);
+}
+
+USBDevice *usb_bt_init(HCIInfo *hci)
+{
+ struct USBBtState *s;
+
+ s = qemu_mallocz(sizeof(struct USBBtState));
+ if (!s)
+ return NULL;
+ s->dev.opaque = s;
+ s->dev.speed = USB_SPEED_HIGH;
+ s->dev.handle_packet = usb_generic_handle_packet;
+ pstrcpy(s->dev.devname, sizeof(s->dev.devname), "QEMU BT dongle");
+
+ s->dev.handle_reset = usb_bt_handle_reset;
+ s->dev.handle_control = usb_bt_handle_control;
+ s->dev.handle_data = usb_bt_handle_data;
+ s->dev.handle_destroy = usb_bt_handle_destroy;
+
+ 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 &s->dev;
+}