diff options
| author | Jayshri Pawar <jpawar@cadence.com> | 2019-10-21 08:35:00 +0200 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2019-10-22 09:37:29 +0200 |
| commit | 0b8b1a1fede01eb727646e70a1b4872cdbd327aa (patch) | |
| tree | a4a9e49e7777217ca02cdadaba64b722ee1f643b /drivers/usb/gadget | |
| parent | usb: gadget: Correct NULL pointer checking in fsl gadget (diff) | |
| download | linux-0b8b1a1fede01eb727646e70a1b4872cdbd327aa.tar.xz linux-0b8b1a1fede01eb727646e70a1b4872cdbd327aa.zip | |
usb: gadget: f_tcm: Provide support to get alternate setting in tcm function
Providing tcm_get_alt in tcm function to support Bulk only protocol and
USB Attached SCSI protocol
Signed-off-by: Jayshri Pawar <jpawar@cadence.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/function/f_tcm.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c index 7f01f78b1d23..36504931b2d1 100644 --- a/drivers/usb/gadget/function/f_tcm.c +++ b/drivers/usb/gadget/function/f_tcm.c @@ -846,7 +846,7 @@ static void uasp_set_alt(struct f_uas *fu) fu->flags = USBG_IS_UAS; - if (gadget->speed == USB_SPEED_SUPER) + if (gadget->speed >= USB_SPEED_SUPER) fu->flags |= USBG_USE_STREAMS; config_ep_by_speed(gadget, f, fu->ep_in); @@ -2093,6 +2093,16 @@ static void tcm_delayed_set_alt(struct work_struct *wq) usb_composite_setup_continue(fu->function.config->cdev); } +static int tcm_get_alt(struct usb_function *f, unsigned intf) +{ + if (intf == bot_intf_desc.bInterfaceNumber) + return USB_G_ALT_INT_BBB; + if (intf == uasp_intf_desc.bInterfaceNumber) + return USB_G_ALT_INT_UAS; + + return -EOPNOTSUPP; +} + static int tcm_set_alt(struct usb_function *f, unsigned intf, unsigned alt) { struct f_uas *fu = to_f_uas(f); @@ -2300,6 +2310,7 @@ static struct usb_function *tcm_alloc(struct usb_function_instance *fi) fu->function.bind = tcm_bind; fu->function.unbind = tcm_unbind; fu->function.set_alt = tcm_set_alt; + fu->function.get_alt = tcm_get_alt; fu->function.setup = tcm_setup; fu->function.disable = tcm_disable; fu->function.free_func = tcm_free; |