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-rw-r--r--hw/usb/dev-bluetooth.c557
1 files changed, 557 insertions, 0 deletions
diff --git a/hw/usb/dev-bluetooth.c b/hw/usb/dev-bluetooth.c
new file mode 100644
index 0000000000..195370c24a
--- /dev/null
+++ b/hw/usb/dev-bluetooth.c
@@ -0,0 +1,557 @@
+/*
+ * 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)
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-27 03:43:21 +0000