[src/trunk]: src/sys/external/bsd/dwc2/dist Some core configurations cannot s...

[skrll <skrll%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/03611f43a710
branches:  trunk
changeset: 790288:03611f43a710
user:      skrll <skrll%NetBSD.org@localhost>
date:      Wed Oct 02 11:36:27 2013 +0000

description:
Some core configurations cannot support LS traffic on a FS root port.

Fix adapted from the github.com/raspberrypi driver.

diffstat:

 sys/external/bsd/dwc2/dist/dwc2_hcd.c |  19 +++++++++++++++++--
 1 files changed, 17 insertions(+), 2 deletions(-)

diffs (47 lines):

diff -r e1c00a24e5ec -r 03611f43a710 sys/external/bsd/dwc2/dist/dwc2_hcd.c
--- a/sys/external/bsd/dwc2/dist/dwc2_hcd.c     Tue Oct 01 23:10:25 2013 +0000
+++ b/sys/external/bsd/dwc2/dist/dwc2_hcd.c     Wed Oct 02 11:36:27 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: dwc2_hcd.c,v 1.4 2013/09/27 21:56:05 skrll Exp $       */
+/*     $NetBSD: dwc2_hcd.c,v 1.5 2013/10/02 11:36:27 skrll Exp $       */
 
 /*
  * hcd.c - DesignWare HS OTG Controller host-mode routines
@@ -42,7 +42,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: dwc2_hcd.c,v 1.4 2013/09/27 21:56:05 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dwc2_hcd.c,v 1.5 2013/10/02 11:36:27 skrll Exp $");
 
 #include <sys/types.h>
 #include <sys/kmem.h>
@@ -370,6 +370,7 @@
        unsigned long flags;
        u32 intr_mask;
        int retval;
+       int dev_speed;
 
        if (!hsotg->flags.b.port_connect_status) {
                /* No longer connected */
@@ -377,6 +378,20 @@
                return -ENODEV;
        }
 
+       dev_speed = dwc2_host_get_speed(hsotg, urb->priv);
+
+       /* Some core configurations cannot support LS traffic on a FS root port */
+       if ((dev_speed == USB_SPEED_LOW) &&
+           (hsotg->hw_params.fs_phy_type == GHWCFG2_FS_PHY_TYPE_DEDICATED) &&
+           (hsotg->hw_params.hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI)) {
+               u32 hprt0 = DWC2_READ_4(hsotg, HPRT0);
+               u32 prtspd = (hprt0 & HPRT0_SPD_MASK) >> HPRT0_SPD_SHIFT;
+
+               if (prtspd == HPRT0_SPD_FULL_SPEED) {
+                       return -ENODEV;
+               }
+       }
+
        qtd = pool_cache_get(sc->sc_qtdpool, PR_NOWAIT);
        if (!qtd)
                return -ENOMEM;