| Message ID | 20200917075857.27803-1-pawell@cadence.com |
|---|---|
| State | New |
| Headers | show |
| Series | usb: gadget: config_ep_by_speed_and_alt instead config_ep_by_speed. | expand |
> Subject: [PATCH] usb: gadget: config_ep_by_speed_and_alt instead > config_ep_by_speed. > Typo, you may indicate use config_ep_by_speed_and_alt instead of config_ep_by_speed > This patch replace config_ep_by_speed with config_ep_by_speed_and_alt. > This change allows to select proper usb_ss_ep_comp_descriptor for each > stream capable endpoints. > > f_tcm function for SS use array of headers for both BOT/UAS alternate > setting: > Delete space before "BOT/UAS" > static struct usb_descriptor_header *uasp_ss_function_desc[] = { > (struct usb_descriptor_header *) &bot_intf_desc, > (struct usb_descriptor_header *) &uasp_ss_bi_desc, > (struct usb_descriptor_header *) &bot_bi_ep_comp_desc, > (struct usb_descriptor_header *) &uasp_ss_bo_desc, > (struct usb_descriptor_header *) &bot_bo_ep_comp_desc, > > (struct usb_descriptor_header *) &uasp_intf_desc, > (struct usb_descriptor_header *) &uasp_ss_bi_desc, > (struct usb_descriptor_header *) &uasp_bi_ep_comp_desc, > (struct usb_descriptor_header *) &uasp_bi_pipe_desc, > (struct usb_descriptor_header *) &uasp_ss_bo_desc, > (struct usb_descriptor_header *) &uasp_bo_ep_comp_desc, > (struct usb_descriptor_header *) &uasp_bo_pipe_desc, > (struct usb_descriptor_header *) &uasp_ss_status_desc, > (struct usb_descriptor_header *) &uasp_status_in_ep_comp_desc, > (struct usb_descriptor_header *) &uasp_status_pipe_desc, > (struct usb_descriptor_header *) &uasp_ss_cmd_desc, > (struct usb_descriptor_header *) &uasp_cmd_comp_desc, > (struct usb_descriptor_header *) &uasp_cmd_pipe_desc, > NULL, > }; > > The first 5 descriptors are associated with BOT alternate setting, and others > are associated with UAS. > delete space before "with UAS" After fixing above typo, you could add my: Reviewed-by: Peter Chen <peter.chen@nxp.com> Peter > During handling UAS alternate setting f_tcm driver invokes > config_ep_by_speed and this function sets incorrect companion endpoint > descriptor in usb_ep object. > > Instead setting ep->comp_desc to uasp_bi_ep_comp_desc function in this case > set ep->comp_desc to bot_uasp_ss_bi_desc. > > And in result it uses the descriptor from BOT alternate setting instead UAS. > > Finally, it causes that controller driver during enabling endpoints detect that > just enabled endpoint for bot. > > Signed-off-by: Jayshri Pawar <jpawar@cadence.com> > Signed-off-by: Pawel Laszczak <pawell@cadence.com> > --- > drivers/usb/gadget/function/f_tcm.c | 12 ++++++------ > 1 file changed, 6 insertions(+), 6 deletions(-) > > diff --git a/drivers/usb/gadget/function/f_tcm.c > b/drivers/usb/gadget/function/f_tcm.c > index 184165e27908..410fa89eae8f 100644 > --- a/drivers/usb/gadget/function/f_tcm.c > +++ b/drivers/usb/gadget/function/f_tcm.c > @@ -392,12 +392,12 @@ static void bot_set_alt(struct f_uas *fu) > > fu->flags = USBG_IS_BOT; > > - config_ep_by_speed(gadget, f, fu->ep_in); > + config_ep_by_speed_and_alt(gadget, f, fu->ep_in, USB_G_ALT_INT_BBB); > ret = usb_ep_enable(fu->ep_in); > if (ret) > goto err_b_in; > > - config_ep_by_speed(gadget, f, fu->ep_out); > + config_ep_by_speed_and_alt(gadget, f, fu->ep_out, > USB_G_ALT_INT_BBB); > ret = usb_ep_enable(fu->ep_out); > if (ret) > goto err_b_out; > @@ -852,21 +852,21 @@ static void uasp_set_alt(struct f_uas *fu) > if (gadget->speed >= USB_SPEED_SUPER) > fu->flags |= USBG_USE_STREAMS; > > - config_ep_by_speed(gadget, f, fu->ep_in); > + config_ep_by_speed_and_alt(gadget, f, fu->ep_in, USB_G_ALT_INT_UAS); > ret = usb_ep_enable(fu->ep_in); > if (ret) > goto err_b_in; > > - config_ep_by_speed(gadget, f, fu->ep_out); > + config_ep_by_speed_and_alt(gadget, f, fu->ep_out, > USB_G_ALT_INT_UAS); > ret = usb_ep_enable(fu->ep_out); > if (ret) > goto err_b_out; > > - config_ep_by_speed(gadget, f, fu->ep_cmd); > + config_ep_by_speed_and_alt(gadget, f, fu->ep_cmd, > USB_G_ALT_INT_UAS); > ret = usb_ep_enable(fu->ep_cmd); > if (ret) > goto err_cmd; > - config_ep_by_speed(gadget, f, fu->ep_status); > + config_ep_by_speed_and_alt(gadget, f, fu->ep_status, > +USB_G_ALT_INT_UAS); > ret = usb_ep_enable(fu->ep_status); > if (ret) > goto err_status; > -- > 2.17.1
diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c index 184165e27908..410fa89eae8f 100644 --- a/drivers/usb/gadget/function/f_tcm.c +++ b/drivers/usb/gadget/function/f_tcm.c @@ -392,12 +392,12 @@ static void bot_set_alt(struct f_uas *fu) fu->flags = USBG_IS_BOT; - config_ep_by_speed(gadget, f, fu->ep_in); + config_ep_by_speed_and_alt(gadget, f, fu->ep_in, USB_G_ALT_INT_BBB); ret = usb_ep_enable(fu->ep_in); if (ret) goto err_b_in; - config_ep_by_speed(gadget, f, fu->ep_out); + config_ep_by_speed_and_alt(gadget, f, fu->ep_out, USB_G_ALT_INT_BBB); ret = usb_ep_enable(fu->ep_out); if (ret) goto err_b_out; @@ -852,21 +852,21 @@ static void uasp_set_alt(struct f_uas *fu) if (gadget->speed >= USB_SPEED_SUPER) fu->flags |= USBG_USE_STREAMS; - config_ep_by_speed(gadget, f, fu->ep_in); + config_ep_by_speed_and_alt(gadget, f, fu->ep_in, USB_G_ALT_INT_UAS); ret = usb_ep_enable(fu->ep_in); if (ret) goto err_b_in; - config_ep_by_speed(gadget, f, fu->ep_out); + config_ep_by_speed_and_alt(gadget, f, fu->ep_out, USB_G_ALT_INT_UAS); ret = usb_ep_enable(fu->ep_out); if (ret) goto err_b_out; - config_ep_by_speed(gadget, f, fu->ep_cmd); + config_ep_by_speed_and_alt(gadget, f, fu->ep_cmd, USB_G_ALT_INT_UAS); ret = usb_ep_enable(fu->ep_cmd); if (ret) goto err_cmd; - config_ep_by_speed(gadget, f, fu->ep_status); + config_ep_by_speed_and_alt(gadget, f, fu->ep_status, USB_G_ALT_INT_UAS); ret = usb_ep_enable(fu->ep_status); if (ret) goto err_status;
This patch replace config_ep_by_speed with config_ep_by_speed_and_alt. This change allows to select proper usb_ss_ep_comp_descriptor for each stream capable endpoints. f_tcm function for SS use array of headers for both BOT/UAS alternate setting: static struct usb_descriptor_header *uasp_ss_function_desc[] = { (struct usb_descriptor_header *) &bot_intf_desc, (struct usb_descriptor_header *) &uasp_ss_bi_desc, (struct usb_descriptor_header *) &bot_bi_ep_comp_desc, (struct usb_descriptor_header *) &uasp_ss_bo_desc, (struct usb_descriptor_header *) &bot_bo_ep_comp_desc, (struct usb_descriptor_header *) &uasp_intf_desc, (struct usb_descriptor_header *) &uasp_ss_bi_desc, (struct usb_descriptor_header *) &uasp_bi_ep_comp_desc, (struct usb_descriptor_header *) &uasp_bi_pipe_desc, (struct usb_descriptor_header *) &uasp_ss_bo_desc, (struct usb_descriptor_header *) &uasp_bo_ep_comp_desc, (struct usb_descriptor_header *) &uasp_bo_pipe_desc, (struct usb_descriptor_header *) &uasp_ss_status_desc, (struct usb_descriptor_header *) &uasp_status_in_ep_comp_desc, (struct usb_descriptor_header *) &uasp_status_pipe_desc, (struct usb_descriptor_header *) &uasp_ss_cmd_desc, (struct usb_descriptor_header *) &uasp_cmd_comp_desc, (struct usb_descriptor_header *) &uasp_cmd_pipe_desc, NULL, }; The first 5 descriptors are associated with BOT alternate setting, and others are associated with UAS. During handling UAS alternate setting f_tcm driver invokes config_ep_by_speed and this function sets incorrect companion endpoint descriptor in usb_ep object. Instead setting ep->comp_desc to uasp_bi_ep_comp_desc function in this case set ep->comp_desc to bot_uasp_ss_bi_desc. And in result it uses the descriptor from BOT alternate setting instead UAS. Finally, it causes that controller driver during enabling endpoints detect that just enabled endpoint for bot. Signed-off-by: Jayshri Pawar <jpawar@cadence.com> Signed-off-by: Pawel Laszczak <pawell@cadence.com> --- drivers/usb/gadget/function/f_tcm.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-)