static int brcmf_usb_up(struct device *dev)
{
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
brcmf_dbg(USB, "Enter\n");
if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP)
return 0;
/* Success, indicate devinfo is fully up */
brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP);
if (devinfo->ctl_urb) {
devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0);
/* CTL Write */
devinfo->ctl_write.bRequestType =
USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
devinfo->ctl_write.bRequest = 0;
devinfo->ctl_write.wValue = cpu_to_le16(0);
devinfo->ctl_write.wIndex = cpu_to_le16(devinfo->ifnum);
/* CTL Read */
devinfo->ctl_read.bRequestType =
USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
devinfo->ctl_read.bRequest = 1;
devinfo->ctl_read.wValue = cpu_to_le16(0);
devinfo->ctl_read.wIndex = cpu_to_le16(devinfo->ifnum);
}
brcmf_usb_rx_fill_all(devinfo);
return 0;
}
static void
brcmf_usb_state_change(struct brcmf_usbdev_info *devinfo, int state)
{
struct brcmf_bus *bcmf_bus = devinfo->bus_pub.bus;
int old_state;
if (devinfo->bus_pub.state == state)
return;
old_state = devinfo->bus_pub.state;
brcmf_dbg(TRACE, "dbus state change from %d to to %d\n",
old_state, state);
/* Don't update state if it's PnP firmware re-download */
if (state != BCMFMAC_USB_STATE_PNP_FWDL) /* TODO */
devinfo->bus_pub.state = state;
if ((old_state == BCMFMAC_USB_STATE_SLEEP)
&& (state == BCMFMAC_USB_STATE_UP)) {
brcmf_usb_rx_fill_all(devinfo);
}
/* update state of upper layer */
if (state == BCMFMAC_USB_STATE_DOWN) {
brcmf_dbg(INFO, "DBUS is down\n");
bcmf_bus->state = BRCMF_BUS_DOWN;
} else {
brcmf_dbg(INFO, "DBUS current state=%d\n", state);
}
}
/*
* (re-) start the bus.
*/
static int brcmf_usb_resume(struct usb_interface *intf)
{
struct usb_device *usb = interface_to_usbdev(intf);
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
brcmf_dbg(USB, "Enter\n");
if (!devinfo->wowl_enabled)
return brcmf_usb_bus_setup(devinfo);
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_UP;
brcmf_usb_rx_fill_all(devinfo);
return 0;
}
static int brcmf_usb_up(struct device *dev)
{
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
u16 ifnum;
if (devinfo->bus_pub.state == BCMFMAC_USB_STATE_UP)
return 0;
/* If the USB/HSIC bus in sleep state, wake it up */
if (devinfo->suspend_state == USBOS_SUSPEND_STATE_SUSPENDED) {
if (brcmf_usb_pnp(devinfo, BCMFMAC_USB_PNP_RESUME) != 0) {
brcmf_dbg(ERROR, "Could not Resume the bus!\n");
return -EIO;
}
}
devinfo->activity = true;
/* Success, indicate devinfo is fully up */
brcmf_usb_state_change(devinfo, BCMFMAC_USB_STATE_UP);
if (devinfo->intr_urb) {
int ret;
usb_fill_int_urb(devinfo->intr_urb, devinfo->usbdev,
devinfo->intr_pipe,
&devinfo->intr,
devinfo->intr_size,
(usb_complete_t)brcmf_usb_intr_complete,
devinfo,
devinfo->interval);
ret = usb_submit_urb(devinfo->intr_urb, GFP_ATOMIC);
if (ret) {
brcmf_dbg(ERROR, "USB_SUBMIT_URB failed with status %d\n",
ret);
return -EINVAL;
}
}
if (devinfo->ctl_urb) {
devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0);
ifnum = IFDESC(devinfo->usbdev, CONTROL_IF).bInterfaceNumber;
/* CTL Write */
devinfo->ctl_write.bRequestType =
USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
devinfo->ctl_write.bRequest = 0;
devinfo->ctl_write.wValue = cpu_to_le16(0);
devinfo->ctl_write.wIndex = cpu_to_le16p(&ifnum);
/* CTL Read */
devinfo->ctl_read.bRequestType =
USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
devinfo->ctl_read.bRequest = 1;
devinfo->ctl_read.wValue = cpu_to_le16(0);
devinfo->ctl_read.wIndex = cpu_to_le16p(&ifnum);
}
brcmf_usb_rx_fill_all(devinfo);
return 0;
}
