Commit 27b31b91 authored by Thinh Nguyen's avatar Thinh Nguyen Committed by Felipe Balbi
Browse files

usb: gadget: f_tcm: Inform last stream request 



Set the request->is_last to each stream request to indicate that the
request is the last stream request of a transfer. The DWC3 controller
needs to know this info to properly switch streams. The current
implementation of f_tcm uses a single request per transfer, so every
stream request is the last of its stream.

Signed-off-by: default avatarThinh Nguyen <thinhn@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <balbi@kernel.org>
parent 5469fd64

drivers/usb/gadget/function/f_tcm.c

+3 −0
Original line number Diff line number Diff line
@@ -531,6 +531,7 @@ static int uasp_prepare_r_request(struct usbg_cmd *cmd) 
		stream->req_in->sg = se_cmd->t_data_sg;

	}



	stream->req_in->is_last = 1;

	stream->req_in->complete = uasp_status_data_cmpl;

	stream->req_in->length = se_cmd->data_length;

	stream->req_in->context = cmd;
@@ -554,6 +555,7 @@ static void uasp_prepare_status(struct usbg_cmd *cmd) 
	 */

	iu->len = cpu_to_be16(se_cmd->scsi_sense_length);

	iu->status = se_cmd->scsi_status;

	stream->req_status->is_last = 1;

	stream->req_status->context = cmd;

	stream->req_status->length = se_cmd->scsi_sense_length + 16;

	stream->req_status->buf = iu;
@@ -991,6 +993,7 @@ static int usbg_prepare_w_request(struct usbg_cmd *cmd, struct usb_request *req) 
		req->sg = se_cmd->t_data_sg;

	}



	req->is_last = 1;

	req->complete = usbg_data_write_cmpl;

	req->length = se_cmd->data_length;

	req->context = cmd;