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DWC OTG host mode improvements:

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- Make HSIC selection dynamic.
 - Make LOW speed USB devices work through HIGH speed USB HUB.
This commit is contained in:
Hans Petter Selasky 2012-09-24 16:34:13 +00:00
parent 5ac3118a32
commit 391d3f18dc
1 changed files with 36 additions and 3 deletions
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39
sys/dev/usb/controller/dwc_otg.c
View file

@ -101,12 +101,18 @@ __FBSDID("$FreeBSD$");
GINTMSK_HCHINTMSK | \
GINTSTS_PRTINT)
#define DWC_OTG_USE_HSIC 0
static int dwc_otg_use_hsic;
static SYSCTL_NODE(_hw_usb, OID_AUTO, dwc_otg, CTLFLAG_RW, 0, "USB DWC OTG");
SYSCTL_INT(_hw_usb_dwc_otg, OID_AUTO, use_hsic, CTLFLAG_RD,
&dwc_otg_use_hsic, 0, "DWC OTG uses HSIC interface");
TUNABLE_INT("hw.usb.dwc_otg.use_hsic", &dwc_otg_use_hsic);
#ifdef USB_DEBUG
static int dwc_otg_debug;
static SYSCTL_NODE(_hw_usb, OID_AUTO, dwc_otg, CTLFLAG_RW, 0, "USB DWC OTG");
SYSCTL_INT(_hw_usb_dwc_otg, OID_AUTO, debug, CTLFLAG_RW,
&dwc_otg_debug, 0, "DWC OTG debug level");
#endif
@ -701,6 +707,15 @@ dwc_otg_host_setup_tx(struct dwc_otg_td *td)
}
}
/* treat NYET like NAK, if SPLIT transactions are used */
if (hcint & HCINT_NYET) {
if (td->hcsplt != 0) {
DPRINTF("CH=%d NYET+SPLIT\n", td->channel);
hcint &= ~HCINT_NYET;
hcint |= HCINT_NAK;
}
}
/* channel must be disabled before we can complete the transfer */
if (hcint & (HCINT_ERRORS | HCINT_RETRY |
@ -1041,6 +1056,15 @@ dwc_otg_host_data_rx(struct dwc_otg_td *td)
}
}
/* treat NYET like NAK, if SPLIT transactions are used */
if (hcint & HCINT_NYET) {
if (td->hcsplt != 0) {
DPRINTF("CH=%d NYET+SPLIT\n", td->channel);
hcint &= ~HCINT_NYET;
hcint |= HCINT_NAK;
}
}
/* channel must be disabled before we can complete the transfer */
if (hcint & (HCINT_ERRORS | HCINT_RETRY |
@ -1391,6 +1415,15 @@ dwc_otg_host_data_tx(struct dwc_otg_td *td)
}
}
/* treat NYET like NAK, if SPLIT transactions are used */
if (hcint & HCINT_NYET) {
if (td->hcsplt != 0) {
DPRINTF("CH=%d NYET+SPLIT\n", td->channel);
hcint &= ~HCINT_NYET;
hcint |= HCINT_NAK;
}
}
/* channel must be disabled before we can complete the transfer */
if (hcint & (HCINT_ERRORS | HCINT_RETRY |
@ -2979,7 +3012,7 @@ dwc_otg_init(struct dwc_otg_softc *sc)
}
/* select HSIC or non-HSIC mode */
if (DWC_OTG_USE_HSIC) {
if (dwc_otg_use_hsic) {
DWC_OTG_WRITE_4(sc, DOTG_GUSBCFG,
GUSBCFG_PHYIF |
GUSBCFG_TRD_TIM_SET(5) | temp);