diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2018-09-20 19:13:35 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-28 15:04:45 +0200 |
| commit | e995dccadaf99e216cf5410463941d978c455c58 (patch) | |
| tree | 956de600400325e9efe8b3fa0284d9d5de22a5ab /drivers/usb/host | |
| parent | 08e469de87a2534fda7a4605d33a2f287bd74684 (diff) | |
| download | linux-e995dccadaf99e216cf5410463941d978c455c58.tar.bz2 | |
usb: xhci-mtk: supports SSP without external USB3 gen2 hub
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/xhci-mtk-sch.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c index 36050a1f8037..fea555570ad4 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) |