static
struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo,
int nrxq, int ntxq)
{
brcmf_dbg(USB, "Enter\n");
devinfo->bus_pub.nrxq = nrxq;
devinfo->rx_low_watermark = nrxq / 2;
devinfo->bus_pub.devinfo = devinfo;
devinfo->bus_pub.ntxq = ntxq;
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DOWN;
/* flow control when too many tx urbs posted */
devinfo->tx_low_watermark = ntxq / 4;
devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3;
devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE;
/* Initialize other structure content */
init_waitqueue_head(&devinfo->ioctl_resp_wait);
/* Initialize the spinlocks */
spin_lock_init(&devinfo->qlock);
spin_lock_init(&devinfo->tx_flowblock_lock);
INIT_LIST_HEAD(&devinfo->rx_freeq);
INIT_LIST_HEAD(&devinfo->rx_postq);
INIT_LIST_HEAD(&devinfo->tx_freeq);
INIT_LIST_HEAD(&devinfo->tx_postq);
devinfo->tx_flowblock = false;
devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq);
if (!devinfo->rx_reqs)
goto error;
devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq);
if (!devinfo->tx_reqs)
goto error;
devinfo->tx_freecount = ntxq;
devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!devinfo->ctl_urb) {
brcmf_err("usb_alloc_urb (ctl) failed\n");
goto error;
}
devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!devinfo->bulk_urb) {
brcmf_err("usb_alloc_urb (bulk) failed\n");
goto error;
}
return &devinfo->bus_pub;
error:
brcmf_err("failed!\n");
brcmf_usb_detach(devinfo);
return NULL;
}
static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
{
struct brcmf_bus *bus = NULL;
struct brcmf_usbdev *bus_pub = NULL;
struct device *dev = devinfo->dev;
int ret;
brcmf_dbg(USB, "Enter\n");
bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ);
if (!bus_pub)
return -ENODEV;
bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC);
if (!bus) {
ret = -ENOMEM;
goto fail;
}
bus->dev = dev;
bus_pub->bus = bus;
bus->bus_priv.usb = bus_pub;
dev_set_drvdata(dev, bus);
bus->ops = &brcmf_usb_bus_ops;
bus->proto_type = BRCMF_PROTO_BCDC;
bus->always_use_fws_queue = true;
#ifdef CONFIG_PM
bus->wowl_supported = true;
#endif
if (!brcmf_usb_dlneeded(devinfo)) {
ret = brcmf_usb_bus_setup(devinfo);
if (ret)
goto fail;
/* we are done */
mutex_unlock(&devinfo->dev_init_lock);
return 0;
}
bus->chip = bus_pub->devid;
bus->chiprev = bus_pub->chiprev;
/* request firmware here */
ret = brcmf_fw_get_firmwares(dev, 0, brcmf_usb_get_fwname(devinfo),
NULL, brcmf_usb_probe_phase2);
if (ret) {
brcmf_err("firmware request failed: %d\n", ret);
goto fail;
}
return 0;
fail:
/* Release resources in reverse order */
kfree(bus);
brcmf_usb_detach(devinfo);
return ret;
}
static void
brcmf_usb_disconnect_cb(struct brcmf_usbdev_info *devinfo)
{
if (!devinfo)
return;
brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo);
brcmf_detach(devinfo->dev);
kfree(devinfo->bus_pub.bus);
brcmf_usb_detach(devinfo);
}
static void
brcmf_usb_disconnect_cb(struct brcmf_usbdev *bus_pub)
{
if (!bus_pub)
return;
brcmf_dbg(TRACE, "enter: bus_pub %p\n", bus_pub);
brcmf_detach(bus_pub->devinfo->dev);
kfree(bus_pub->bus);
brcmf_usb_detach(bus_pub);
}
static int brcmf_usb_probe_cb(struct device *dev, const char *desc,
u32 bustype, u32 hdrlen)
{
struct brcmf_bus *bus = NULL;
struct brcmf_usbdev *bus_pub = NULL;
int ret;
bus_pub = brcmf_usb_attach(BRCMF_USB_NRXQ, BRCMF_USB_NTXQ, dev);
if (!bus_pub) {
ret = -ENODEV;
goto fail;
}
bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC);
if (!bus) {
ret = -ENOMEM;
goto fail;
}
bus_pub->bus = bus;
bus->brcmf_bus_txdata = brcmf_usb_tx;
bus->brcmf_bus_init = brcmf_usb_up;
bus->brcmf_bus_stop = brcmf_usb_down;
bus->brcmf_bus_txctl = brcmf_usb_tx_ctlpkt;
bus->brcmf_bus_rxctl = brcmf_usb_rx_ctlpkt;
bus->type = bustype;
bus->bus_priv.usb = bus_pub;
dev_set_drvdata(dev, bus);
/* Attach to the common driver interface */
ret = brcmf_attach(hdrlen, dev);
if (ret) {
brcmf_dbg(ERROR, "dhd_attach failed\n");
goto fail;
}
ret = brcmf_bus_start(dev);
if (ret == -ENOLINK) {
brcmf_dbg(ERROR, "dongle is not responding\n");
brcmf_detach(dev);
goto fail;
}
return 0;
fail:
/* Release resources in reverse order */
if (bus_pub)
brcmf_usb_detach(bus_pub);
kfree(bus);
return ret;
}
static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
{
struct brcmf_bus *bus = NULL;
struct brcmf_usbdev *bus_pub = NULL;
struct device *dev = devinfo->dev;
struct brcmf_fw_request *fwreq;
int ret;
brcmf_dbg(USB, "Enter\n");
bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ);
if (!bus_pub)
return -ENODEV;
bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC);
if (!bus) {
ret = -ENOMEM;
goto fail;
}
bus->dev = dev;
bus_pub->bus = bus;
bus->bus_priv.usb = bus_pub;
dev_set_drvdata(dev, bus);
bus->ops = &brcmf_usb_bus_ops;
bus->proto_type = BRCMF_PROTO_BCDC;
bus->always_use_fws_queue = true;
#ifdef CONFIG_PM
bus->wowl_supported = true;
#endif
devinfo->settings = brcmf_get_module_param(bus->dev, BRCMF_BUSTYPE_USB,
bus_pub->devid,
bus_pub->chiprev);
if (!devinfo->settings) {
ret = -ENOMEM;
goto fail;
}
if (!brcmf_usb_dlneeded(devinfo)) {
ret = brcmf_attach(devinfo->dev, devinfo->settings);
if (ret)
goto fail;
/* we are done */
complete(&devinfo->dev_init_done);
return 0;
}
bus->chip = bus_pub->devid;
bus->chiprev = bus_pub->chiprev;
fwreq = brcmf_usb_prepare_fw_request(devinfo);
if (!fwreq) {
ret = -ENOMEM;
goto fail;
}
/* request firmware here */
ret = brcmf_fw_get_firmwares(dev, fwreq, brcmf_usb_probe_phase2);
if (ret) {
brcmf_err("firmware request failed: %d\n", ret);
kfree(fwreq);
goto fail;
}
return 0;
fail:
/* Release resources in reverse order */
kfree(bus);
brcmf_usb_detach(devinfo);
return ret;
}
static
struct brcmf_usbdev *brcmf_usb_attach(int nrxq, int ntxq, struct device *dev)
{
struct brcmf_usbdev_info *devinfo;
devinfo = kzalloc(sizeof(struct brcmf_usbdev_info), GFP_ATOMIC);
if (devinfo == NULL)
return NULL;
devinfo->bus_pub.nrxq = nrxq;
devinfo->rx_low_watermark = nrxq / 2;
devinfo->bus_pub.devinfo = devinfo;
devinfo->bus_pub.ntxq = ntxq;
/* flow control when too many tx urbs posted */
devinfo->tx_low_watermark = ntxq / 4;
devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3;
devinfo->dev = dev;
devinfo->usbdev = usbdev_probe_info.usb;
devinfo->tx_pipe = usbdev_probe_info.tx_pipe;
devinfo->rx_pipe = usbdev_probe_info.rx_pipe;
devinfo->rx_pipe2 = usbdev_probe_info.rx_pipe2;
devinfo->intr_pipe = usbdev_probe_info.intr_pipe;
devinfo->interval = usbdev_probe_info.interval;
devinfo->intr_size = usbdev_probe_info.intr_size;
memcpy(&devinfo->probe_info, &usbdev_probe_info,
sizeof(struct brcmf_usb_probe_info));
devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE;
/* Initialize other structure content */
init_waitqueue_head(&devinfo->ioctl_resp_wait);
/* Initialize the spinlocks */
spin_lock_init(&devinfo->qlock);
INIT_LIST_HEAD(&devinfo->rx_freeq);
INIT_LIST_HEAD(&devinfo->rx_postq);
INIT_LIST_HEAD(&devinfo->tx_freeq);
INIT_LIST_HEAD(&devinfo->tx_postq);
devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq);
if (!devinfo->rx_reqs)
goto error;
devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq);
if (!devinfo->tx_reqs)
goto error;
devinfo->intr_urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!devinfo->intr_urb) {
brcmf_dbg(ERROR, "usb_alloc_urb (intr) failed\n");
goto error;
}
devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!devinfo->ctl_urb) {
brcmf_dbg(ERROR, "usb_alloc_urb (ctl) failed\n");
goto error;
}
devinfo->rxctl_deferrespok = 0;
devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC);
if (!devinfo->bulk_urb) {
brcmf_dbg(ERROR, "usb_alloc_urb (bulk) failed\n");
goto error;
}
init_waitqueue_head(&devinfo->wait);
if (!brcmf_usb_dlneeded(devinfo))
return &devinfo->bus_pub;
brcmf_dbg(TRACE, "start fw downloading\n");
if (brcmf_usb_get_fw(devinfo))
goto error;
if (brcmf_usb_fw_download(devinfo))
goto error;
return &devinfo->bus_pub;
error:
brcmf_dbg(ERROR, "failed!\n");
brcmf_usb_detach(&devinfo->bus_pub);
return NULL;
}