diff mbox series

[06/10] usb: xhci-mtk: supports SSP without external USB3 gen2 hub

Message ID 1536841443-10713-7-git-send-email-mathias.nyman@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series xhci features for usb-next | expand

Commit Message

Mathias Nyman Sept. 13, 2018, 12:23 p.m. UTC 
From: Chunfeng Yun <chunfeng.yun@mediatek.com>

Supports SSP scheduling only for SSP device directly connected
to root hub but not through external USB3 gen2 hub which need
use a new scheduling way.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
---
 drivers/usb/host/xhci-mtk-sch.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index 36050a1..fea5555 100644
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -13,6 +13,7 @@ 
 #include "xhci.h"
 #include "xhci-mtk.h"
 
+#define SSP_BW_BOUNDARY	130000
 #define SS_BW_BOUNDARY	51000
 /* table 5-5. High-speed Isoc Transaction Limits in usb_20 spec */
 #define HS_BW_BOUNDARY	6144
@@ -25,7 +26,7 @@ 
 #define TT_MICROFRAMES_MAX 9
 
 /* mtk scheduler bitmasks */
-#define EP_BPKTS(p)	((p) & 0x3f)
+#define EP_BPKTS(p)	((p) & 0x7f)
 #define EP_BCSCOUNT(p)	(((p) & 0x7) << 8)
 #define EP_BBM(p)	((p) << 11)
 #define EP_BOFFSET(p)	((p) & 0x3fff)
@@ -56,7 +57,7 @@  static int get_bw_index(struct xhci_hcd *xhci, struct usb_device *udev,
 
 	virt_dev = xhci->devs[udev->slot_id];
 
-	if (udev->speed == USB_SPEED_SUPER) {
+	if (udev->speed >= USB_SPEED_SUPER) {
 		if (usb_endpoint_dir_out(&ep->desc))
 			bw_index = (virt_dev->real_port - 1) * 2;
 		else
@@ -177,7 +178,7 @@  static struct mu3h_sch_ep_info *create_sch_ep(struct usb_device *udev,
 
 	if (is_fs_or_ls(udev->speed))
 		len_bw_budget_table = TT_MICROFRAMES_MAX;
-	else if ((udev->speed == USB_SPEED_SUPER)
+	else if ((udev->speed >= USB_SPEED_SUPER)
 			&& usb_endpoint_xfer_isoc(&ep->desc))
 		len_bw_budget_table = get_esit(ep_ctx);
 	else
@@ -249,7 +250,7 @@  static void setup_sch_info(struct usb_device *udev,
 		sch_ep->pkts = max_burst + 1;
 		sch_ep->bw_cost_per_microframe = maxpkt * sch_ep->pkts;
 		bwb_table[0] = sch_ep->bw_cost_per_microframe;
-	} else if (udev->speed == USB_SPEED_SUPER) {
+	} else if (udev->speed >= USB_SPEED_SUPER) {
 		/* usb3_r1 spec section4.4.7 & 4.4.8 */
 		sch_ep->cs_count = 0;
 		sch_ep->burst_mode = 1;
@@ -511,8 +512,12 @@  static int check_sch_bw(struct usb_device *udev,
 			break;
 	}
 
-	bw_boundary = (udev->speed == USB_SPEED_SUPER)
-				? SS_BW_BOUNDARY : HS_BW_BOUNDARY;
+	if (udev->speed == USB_SPEED_SUPER_PLUS)
+		bw_boundary = SSP_BW_BOUNDARY;
+	else if (udev->speed == USB_SPEED_SUPER)
+		bw_boundary = SS_BW_BOUNDARY;
+	else
+		bw_boundary = HS_BW_BOUNDARY;
 
 	/* check bandwidth */
 	if (min_bw > bw_boundary)