diff options
Diffstat (limited to 'drivers/usb/dwc2/hcd.c')
| -rw-r--r-- | drivers/usb/dwc2/hcd.c | 45 |
1 files changed, 32 insertions, 13 deletions
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index 571c21727ff9..f4823c4856c5 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -54,6 +54,19 @@ #include "core.h" #include "hcd.h" +struct wrapper_priv_data { + struct dwc2_hsotg *hsotg; +}; + +/* Gets the dwc2_hsotg from a usb_hcd */ +static struct dwc2_hsotg *dwc2_hcd_to_hsotg(struct usb_hcd *hcd) +{ + struct wrapper_priv_data *p; + + p = (struct wrapper_priv_data *) &hcd->hcd_priv; + return p->hsotg; +} + /** * dwc2_dump_channel_info() - Prints the state of a host channel * @@ -1350,6 +1363,24 @@ void dwc2_hcd_queue_transactions(struct dwc2_hsotg *hsotg, } } +/* + * 0: high speed + * 1: full speed + */ +static void dwc2_change_bus_speed(struct usb_hcd* hcd, int speed) +{ + struct dwc2_hsotg *hsotg = dwc2_hcd_to_hsotg(hcd); + static int last_speed = 0; + + if (speed == last_speed) + return; + + hsotg->core_params->speed = speed; + queue_work(hsotg->wq_otg, &hsotg->wf_otg); + + last_speed = speed; +} + static void dwc2_conn_id_status_change(struct work_struct *work) { struct dwc2_hsotg *hsotg = container_of(work, struct dwc2_hsotg, @@ -2121,19 +2152,6 @@ void dwc2_hcd_dump_frrem(struct dwc2_hsotg *hsotg) #endif } -struct wrapper_priv_data { - struct dwc2_hsotg *hsotg; -}; - -/* Gets the dwc2_hsotg from a usb_hcd */ -static struct dwc2_hsotg *dwc2_hcd_to_hsotg(struct usb_hcd *hcd) -{ - struct wrapper_priv_data *p; - - p = (struct wrapper_priv_data *) &hcd->hcd_priv; - return p->hsotg; -} - static int _dwc2_hcd_start(struct usb_hcd *hcd); void dwc2_host_start(struct dwc2_hsotg *hsotg) @@ -2905,6 +2923,7 @@ static struct hc_driver dwc2_hc_driver = { .bus_suspend = _dwc2_hcd_suspend, .bus_resume = _dwc2_hcd_resume, + .change_bus_speed = dwc2_change_bus_speed, }; /* |