Providing tcm_get_alt in tcm function to support Bulk only protocol and
USB Attached SCSI protocol
Signed-off-by: Jayshri Pawar <[email protected]>
---
drivers/usb/gadget/function/f_tcm.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
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;
--
2.20.1