Author: thompsa
Date: Sat Mar 7 19:49:47 2009
New Revision: 189496
URL: http://svn.freebsd.org/changeset/base/189496
Log:
(re)merge r186415,186416 from the old usb stack;
o add Transaction Translator support (still missing ISOC xfers)
o add EHCI_SCFLG_BIGEMMIO flag to force big-endian byte-select to be
set in USBMODE
o split reset work into new public routine ehci_reset so bus shim drivers
can force big-endian byte-select before ehci_init
o enable TT and big-endian MMIO
o force a reset before ehci_init to get byte-select setup
Also go back to using USB_EHCI_BIG_ENDIAN_DESC at compile time to enable the
byteswapping and reduce diffs to the original commits.
This fixes the new USB stack on the Cambria board.
Modified:
head/sys/dev/usb/controller/ehci.c
head/sys/dev/usb/controller/ehci.h
head/sys/dev/usb/controller/ehci_ixp4xx.c
Modified: head/sys/dev/usb/controller/ehci.c
==============================================================================
--- head/sys/dev/usb/controller/ehci.c Sat Mar 7 19:13:59 2009
(r189495)
+++ head/sys/dev/usb/controller/ehci.c Sat Mar 7 19:49:47 2009
(r189496)
@@ -120,23 +120,6 @@ struct ehci_std_temp {
uint8_t short_frames_ok;
};
-/*
- * Byte-order conversion functions.
- */
-static uint32_t
-htoehci32(ehci_softc_t *sc, const uint32_t v)
-{
- return ((sc->sc_flags & EHCI_SCFLG_BIGEDESC) ?
- htobe32(v) : htole32(v));
-}
-
-static uint32_t
-ehci32toh(ehci_softc_t *sc, const uint32_t v)
-{
- return ((sc->sc_flags & EHCI_SCFLG_BIGEDESC) ?
- be32toh(v) : le32toh(v));
-}
-
void
ehci_iterate_hw_softc(struct usb2_bus *bus, usb2_bus_mem_sub_cb_t *cb)
{
@@ -168,45 +151,64 @@ ehci_iterate_hw_softc(struct usb2_bus *b
}
}
-static usb2_error_t
-ehci_hc_reset(ehci_softc_t *sc)
+usb2_error_t
+ehci_reset(ehci_softc_t *sc)
{
uint32_t hcr;
- uint32_t n;
-
- EOWRITE4(sc, EHCI_USBCMD, 0); /* Halt controller */
+ int i;
- for (n = 0; n != 100; n++) {
- usb2_pause_mtx(&sc->sc_bus.bus_mtx, hz / 1000);
- hcr = EOREAD4(sc, EHCI_USBSTS);
- if (hcr & EHCI_STS_HCH) {
- hcr = 0;
- break;
+ EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET);
+ for (i = 0; i < 100; i++) {
+ usb2_pause_mtx(NULL, hz / 1000);
+ hcr = EOREAD4(sc, EHCI_USBCMD) & EHCI_CMD_HCRESET;
+ if (!hcr) {
+ if (sc->sc_flags & (EHCI_SCFLG_SETMODE |
EHCI_SCFLG_BIGEMMIO)) {
+ /*
+ * Force USBMODE as requested. Controllers
+ * may have multiple operating modes.
+ */
+ uint32_t usbmode = EOREAD4(sc, EHCI_USBMODE);
+ if (sc->sc_flags & EHCI_SCFLG_SETMODE) {
+ usbmode = (usbmode &~ EHCI_UM_CM) |
EHCI_UM_CM_HOST;
+ device_printf(sc->sc_bus.bdev,
+ "set host controller mode\n");
+ }
+ if (sc->sc_flags & EHCI_SCFLG_BIGEMMIO) {
+ usbmode = (usbmode &~ EHCI_UM_ES) |
EHCI_UM_ES_BE;
+ device_printf(sc->sc_bus.bdev,
+ "set big-endian mode\n");
+ }
+ EOWRITE4(sc, EHCI_USBMODE, usbmode);
+ }
+ return (0);
}
}
+ device_printf(sc->sc_bus.bdev, "reset timeout\n");
+ return (USB_ERR_IOERROR);
+}
- /*
- * Fall through and try reset anyway even though
- * Table 2-9 in the EHCI spec says this will result
- * in undefined behavior.
- */
+static usb2_error_t
+ehci_hcreset(ehci_softc_t *sc)
+{
+ uint32_t hcr;
+ int i;
- EOWRITE4(sc, EHCI_USBCMD, EHCI_CMD_HCRESET);
- for (n = 0; n != 100; n++) {
- usb2_pause_mtx(&sc->sc_bus.bus_mtx, hz / 1000);
- hcr = EOREAD4(sc, EHCI_USBCMD);
- if (!(hcr & EHCI_CMD_HCRESET)) {
- if (sc->sc_flags & EHCI_SCFLG_SETMODE)
- EOWRITE4(sc, 0x68, 0x3);
- hcr = 0;
+ EOWRITE4(sc, EHCI_USBCMD, 0); /* Halt controller */
+ for (i = 0; i < 100; i++) {
+ usb2_pause_mtx(NULL, hz / 1000);
+ hcr = EOREAD4(sc, EHCI_USBSTS) & EHCI_STS_HCH;
+ if (hcr)
break;
- }
}
+ if (!hcr)
+ /*
+ * Fall through and try reset anyway even though
+ * Table 2-9 in the EHCI spec says this will result
+ * in undefined behavior.
+ */
+ device_printf(sc->sc_bus.bdev, "stop timeout\n");
- if (hcr) {
- return (USB_ERR_IOERROR);
- }
- return (0);
+ return ehci_reset(sc);
}
usb2_error_t
@@ -257,9 +259,7 @@ ehci_init(ehci_softc_t *sc)
/* Reset the controller */
DPRINTF("%s: resetting\n", device_get_nameunit(sc->sc_bus.bdev));
- USB_BUS_LOCK(&sc->sc_bus);
- err = ehci_hc_reset(sc);
- USB_BUS_UNLOCK(&sc->sc_bus);
+ err = ehci_hcreset(sc);
if (err) {
device_printf(sc->sc_bus.bdev, "reset timeout\n");
return (err);
@@ -293,21 +293,21 @@ ehci_init(ehci_softc_t *sc)
sc->sc_intr_p_last[i] = qh;
qh->qh_self =
- htoehci32(sc, buf_res.physaddr) |
- htoehci32(sc, EHCI_LINK_QH);
+ htohc32(sc, buf_res.physaddr) |
+ htohc32(sc, EHCI_LINK_QH);
qh->qh_endp =
- htoehci32(sc, EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH));
+ htohc32(sc, EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH));
qh->qh_endphub =
- htoehci32(sc, EHCI_QH_SET_MULT(1));
+ htohc32(sc, EHCI_QH_SET_MULT(1));
qh->qh_curqtd = 0;
qh->qh_qtd.qtd_next =
- htoehci32(sc, EHCI_LINK_TERMINATE);
+ htohc32(sc, EHCI_LINK_TERMINATE);
qh->qh_qtd.qtd_altnext =
- htoehci32(sc, EHCI_LINK_TERMINATE);
+ htohc32(sc, EHCI_LINK_TERMINATE);
qh->qh_qtd.qtd_status =
- htoehci32(sc, EHCI_QTD_HALTED);
+ htohc32(sc, EHCI_QTD_HALTED);
}
/*
@@ -342,7 +342,7 @@ ehci_init(ehci_softc_t *sc)
qh = sc->sc_intr_p_last[0];
/* the last (1ms) QH terminates */
- qh->qh_link = htoehci32(sc, EHCI_LINK_TERMINATE);
+ qh->qh_link = htohc32(sc, EHCI_LINK_TERMINATE);
}
for (i = 0; i < EHCI_VIRTUAL_FRAMELIST_COUNT; i++) {
ehci_sitd_t *sitd;
@@ -363,11 +363,11 @@ ehci_init(ehci_softc_t *sc)
/* initialize full speed isochronous */
sitd->sitd_self =
- htoehci32(sc, buf_res.physaddr) |
- htoehci32(sc, EHCI_LINK_SITD);
+ htohc32(sc, buf_res.physaddr) |
+ htohc32(sc, EHCI_LINK_SITD);
sitd->sitd_back =
- htoehci32(sc, EHCI_LINK_TERMINATE);
+ htohc32(sc, EHCI_LINK_TERMINATE);
sitd->sitd_next =
sc->sc_intr_p_last[i | (EHCI_VIRTUAL_FRAMELIST_COUNT /
2)]->qh_self;
@@ -388,8 +388,8 @@ ehci_init(ehci_softc_t *sc)
/* initialize high speed isochronous */
itd->itd_self =
- htoehci32(sc, buf_res.physaddr) |
- htoehci32(sc, EHCI_LINK_ITD);
+ htohc32(sc, buf_res.physaddr) |
+ htohc32(sc, EHCI_LINK_ITD);
itd->itd_next =
sitd->sitd_self;
@@ -434,20 +434,20 @@ ehci_init(ehci_softc_t *sc)
/* init dummy QH that starts the async list */
qh->qh_self =
- htoehci32(sc, buf_res.physaddr) |
- htoehci32(sc, EHCI_LINK_QH);
+ htohc32(sc, buf_res.physaddr) |
+ htohc32(sc, EHCI_LINK_QH);
/* fill the QH */
qh->qh_endp =
- htoehci32(sc, EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH) |
EHCI_QH_HRECL);
- qh->qh_endphub = htoehci32(sc, EHCI_QH_SET_MULT(1));
+ htohc32(sc, EHCI_QH_SET_EPS(EHCI_QH_SPEED_HIGH) |
EHCI_QH_HRECL);
+ qh->qh_endphub = htohc32(sc, EHCI_QH_SET_MULT(1));
qh->qh_link = qh->qh_self;
qh->qh_curqtd = 0;
/* fill the overlay qTD */
- qh->qh_qtd.qtd_next = htoehci32(sc, EHCI_LINK_TERMINATE);
- qh->qh_qtd.qtd_altnext = htoehci32(sc, EHCI_LINK_TERMINATE);
- qh->qh_qtd.qtd_status = htoehci32(sc, EHCI_QTD_HALTED);
+ qh->qh_qtd.qtd_next = htohc32(sc, EHCI_LINK_TERMINATE);
+ qh->qh_qtd.qtd_altnext = htohc32(sc, EHCI_LINK_TERMINATE);
+ qh->qh_qtd.qtd_status = htohc32(sc, EHCI_QTD_HALTED);
}
/* flush all cache into memory */
@@ -507,13 +507,12 @@ ehci_detach(ehci_softc_t *sc)
usb2_callout_stop(&sc->sc_tmo_pcd);
EOWRITE4(sc, EHCI_USBINTR, sc->sc_eintrs);
+ USB_BUS_UNLOCK(&sc->sc_bus);
- if (ehci_hc_reset(sc)) {
+ if (ehci_hcreset(sc)) {
DPRINTF("reset failed!\n");
}
- USB_BUS_UNLOCK(&sc->sc_bus);
-
/* XXX let stray task complete */
usb2_pause_mtx(NULL, hz / 20);
@@ -646,12 +645,9 @@ ehci_shutdown(ehci_softc_t *sc)
{
DPRINTF("stopping the HC\n");
- USB_BUS_LOCK(&sc->sc_bus);
-
- if (ehci_hc_reset(sc)) {
+ if (ehci_hcreset(sc)) {
DPRINTF("reset failed!\n");
}
- USB_BUS_UNLOCK(&sc->sc_bus);
}
#if USB_DEBUG
@@ -737,7 +733,7 @@ ehci_dump_regs(ehci_softc_t *sc)
static void
ehci_dump_link(ehci_softc_t *sc, uint32_t link, int type)
{
- link = ehci32toh(sc, link);
+ link = hc32toh(sc, link);
printf("0x%08x", link);
if (link & EHCI_LINK_TERMINATE)
printf("<T>");
@@ -773,7 +769,7 @@ ehci_dump_qtd(ehci_softc_t *sc, ehci_qtd
printf(" altnext=");
ehci_dump_link(sc, qtd->qtd_altnext, 0);
printf("\n");
- s = ehci32toh(sc, qtd->qtd_status);
+ s = hc32toh(sc, qtd->qtd_status);
printf(" status=0x%08x: toggle=%d bytes=0x%x ioc=%d c_page=0x%x\n",
s, EHCI_QTD_GET_TOGGLE(s), EHCI_QTD_GET_BYTES(s),
EHCI_QTD_GET_IOC(s), EHCI_QTD_GET_C_PAGE(s));
@@ -790,11 +786,11 @@ ehci_dump_qtd(ehci_softc_t *sc, ehci_qtd
for (s = 0; s < 5; s++) {
printf(" buffer[%d]=0x%08x\n", s,
- ehci32toh(sc, qtd->qtd_buffer[s]));
+ hc32toh(sc, qtd->qtd_buffer[s]));
}
for (s = 0; s < 5; s++) {
printf(" buffer_hi[%d]=0x%08x\n", s,
- ehci32toh(sc, qtd->qtd_buffer_hi[s]));
+ hc32toh(sc, qtd->qtd_buffer_hi[s]));
}
}
@@ -804,9 +800,9 @@ ehci_dump_sqtd(ehci_softc_t *sc, ehci_qt
uint8_t temp;
usb2_pc_cpu_invalidate(sqtd->page_cache);
- printf("QTD(%p) at 0x%08x:\n", sqtd, ehci32toh(sc, sqtd->qtd_self));
+ printf("QTD(%p) at 0x%08x:\n", sqtd, hc32toh(sc, sqtd->qtd_self));
ehci_dump_qtd(sc, sqtd);
- temp = (sqtd->qtd_next & htoehci32(sc, EHCI_LINK_TERMINATE)) ? 1 : 0;
+ temp = (sqtd->qtd_next & htohc32(sc, EHCI_LINK_TERMINATE)) ? 1 : 0;
return (temp);
}
@@ -832,11 +828,11 @@ ehci_dump_sqh(ehci_softc_t *sc, ehci_qh_
uint32_t endphub;
usb2_pc_cpu_invalidate(qh->page_cache);
- printf("QH(%p) at 0x%08x:\n", qh, ehci32toh(sc, qh->qh_self) & ~0x1F);
+ printf("QH(%p) at 0x%08x:\n", qh, hc32toh(sc, qh->qh_self) & ~0x1F);
printf(" link=");
ehci_dump_link(sc, qh->qh_link, 1);
printf("\n");
- endp = ehci32toh(sc, qh->qh_endp);
+ endp = hc32toh(sc, qh->qh_endp);
printf(" endp=0x%08x\n", endp);
printf(" addr=0x%02x inact=%d endpt=%d eps=%d dtc=%d hrecl=%d\n",
EHCI_QH_GET_ADDR(endp), EHCI_QH_GET_INACT(endp),
@@ -845,7 +841,7 @@ ehci_dump_sqh(ehci_softc_t *sc, ehci_qh_
printf(" mpl=0x%x ctl=%d nrl=%d\n",
EHCI_QH_GET_MPL(endp), EHCI_QH_GET_CTL(endp),
EHCI_QH_GET_NRL(endp));
- endphub = ehci32toh(sc, qh->qh_endphub);
+ endphub = hc32toh(sc, qh->qh_endphub);
printf(" endphub=0x%08x\n", endphub);
printf(" smask=0x%02x cmask=0x%02x huba=0x%02x port=%d mult=%d\n",
EHCI_QH_GET_SMASK(endphub), EHCI_QH_GET_CMASK(endphub),
@@ -862,73 +858,73 @@ static void
ehci_dump_sitd(ehci_softc_t *sc, ehci_sitd_t *sitd)
{
usb2_pc_cpu_invalidate(sitd->page_cache);
- printf("SITD(%p) at 0x%08x\n", sitd, ehci32toh(sc, sitd->sitd_self) &
~0x1F);
- printf(" next=0x%08x\n", ehci32toh(sc, sitd->sitd_next));
+ printf("SITD(%p) at 0x%08x\n", sitd, hc32toh(sc, sitd->sitd_self) &
~0x1F);
+ printf(" next=0x%08x\n", hc32toh(sc, sitd->sitd_next));
printf(" portaddr=0x%08x dir=%s addr=%d endpt=0x%x port=0x%x
huba=0x%x\n",
- ehci32toh(sc, sitd->sitd_portaddr),
- (sitd->sitd_portaddr & htoehci32(sc, EHCI_SITD_SET_DIR_IN))
+ hc32toh(sc, sitd->sitd_portaddr),
+ (sitd->sitd_portaddr & htohc32(sc, EHCI_SITD_SET_DIR_IN))
? "in" : "out",
- EHCI_SITD_GET_ADDR(ehci32toh(sc, sitd->sitd_portaddr)),
- EHCI_SITD_GET_ENDPT(ehci32toh(sc, sitd->sitd_portaddr)),
- EHCI_SITD_GET_PORT(ehci32toh(sc, sitd->sitd_portaddr)),
- EHCI_SITD_GET_HUBA(ehci32toh(sc, sitd->sitd_portaddr)));
- printf(" mask=0x%08x\n", ehci32toh(sc, sitd->sitd_mask));
- printf(" status=0x%08x <%s> len=0x%x\n", ehci32toh(sc,
sitd->sitd_status),
- (sitd->sitd_status & htoehci32(sc, EHCI_SITD_ACTIVE)) ? "ACTIVE" :
"",
- EHCI_SITD_GET_LEN(ehci32toh(sc, sitd->sitd_status)));
+ EHCI_SITD_GET_ADDR(hc32toh(sc, sitd->sitd_portaddr)),
+ EHCI_SITD_GET_ENDPT(hc32toh(sc, sitd->sitd_portaddr)),
+ EHCI_SITD_GET_PORT(hc32toh(sc, sitd->sitd_portaddr)),
+ EHCI_SITD_GET_HUBA(hc32toh(sc, sitd->sitd_portaddr)));
+ printf(" mask=0x%08x\n", hc32toh(sc, sitd->sitd_mask));
+ printf(" status=0x%08x <%s> len=0x%x\n", hc32toh(sc, sitd->sitd_status),
+ (sitd->sitd_status & htohc32(sc, EHCI_SITD_ACTIVE)) ? "ACTIVE" : "",
+ EHCI_SITD_GET_LEN(hc32toh(sc, sitd->sitd_status)));
printf(" back=0x%08x, bp=0x%08x,0x%08x,0x%08x,0x%08x\n",
- ehci32toh(sc, sitd->sitd_back),
- ehci32toh(sc, sitd->sitd_bp[0]),
- ehci32toh(sc, sitd->sitd_bp[1]),
- ehci32toh(sc, sitd->sitd_bp_hi[0]),
- ehci32toh(sc, sitd->sitd_bp_hi[1]));
+ hc32toh(sc, sitd->sitd_back),
+ hc32toh(sc, sitd->sitd_bp[0]),
+ hc32toh(sc, sitd->sitd_bp[1]),
+ hc32toh(sc, sitd->sitd_bp_hi[0]),
+ hc32toh(sc, sitd->sitd_bp_hi[1]));
}
static void
ehci_dump_itd(ehci_softc_t *sc, ehci_itd_t *itd)
{
usb2_pc_cpu_invalidate(itd->page_cache);
- printf("ITD(%p) at 0x%08x\n", itd, ehci32toh(sc, itd->itd_self) &
~0x1F);
- printf(" next=0x%08x\n", ehci32toh(sc, itd->itd_next));
- printf(" status[0]=0x%08x; <%s>\n", ehci32toh(sc, itd->itd_status[0]),
- (itd->itd_status[0] & htoehci32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
- printf(" status[1]=0x%08x; <%s>\n", ehci32toh(sc, itd->itd_status[1]),
- (itd->itd_status[1] & htoehci32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
- printf(" status[2]=0x%08x; <%s>\n", ehci32toh(sc, itd->itd_status[2]),
- (itd->itd_status[2] & htoehci32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
- printf(" status[3]=0x%08x; <%s>\n", ehci32toh(sc, itd->itd_status[3]),
- (itd->itd_status[3] & htoehci32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
- printf(" status[4]=0x%08x; <%s>\n", ehci32toh(sc, itd->itd_status[4]),
- (itd->itd_status[4] & htoehci32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
- printf(" status[5]=0x%08x; <%s>\n", ehci32toh(sc, itd->itd_status[5]),
- (itd->itd_status[5] & htoehci32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
- printf(" status[6]=0x%08x; <%s>\n", ehci32toh(sc, itd->itd_status[6]),
- (itd->itd_status[6] & htoehci32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
- printf(" status[7]=0x%08x; <%s>\n", ehci32toh(sc, itd->itd_status[7]),
- (itd->itd_status[7] & htoehci32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
- printf(" bp[0]=0x%08x\n", ehci32toh(sc, itd->itd_bp[0]));
+ printf("ITD(%p) at 0x%08x\n", itd, hc32toh(sc, itd->itd_self) & ~0x1F);
+ printf(" next=0x%08x\n", hc32toh(sc, itd->itd_next));
+ printf(" status[0]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[0]),
+ (itd->itd_status[0] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
+ printf(" status[1]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[1]),
+ (itd->itd_status[1] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
+ printf(" status[2]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[2]),
+ (itd->itd_status[2] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
+ printf(" status[3]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[3]),
+ (itd->itd_status[3] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
+ printf(" status[4]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[4]),
+ (itd->itd_status[4] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
+ printf(" status[5]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[5]),
+ (itd->itd_status[5] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
+ printf(" status[6]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[6]),
+ (itd->itd_status[6] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
+ printf(" status[7]=0x%08x; <%s>\n", hc32toh(sc, itd->itd_status[7]),
+ (itd->itd_status[7] & htohc32(sc, EHCI_ITD_ACTIVE)) ? "ACTIVE" :
"");
+ printf(" bp[0]=0x%08x\n", hc32toh(sc, itd->itd_bp[0]));
printf(" addr=0x%02x; endpt=0x%01x\n",
- EHCI_ITD_GET_ADDR(ehci32toh(sc, itd->itd_bp[0])),
- EHCI_ITD_GET_ENDPT(ehci32toh(sc, itd->itd_bp[0])));
- printf(" bp[1]=0x%08x\n", ehci32toh(sc, itd->itd_bp[1]));
+ EHCI_ITD_GET_ADDR(hc32toh(sc, itd->itd_bp[0])),
+ EHCI_ITD_GET_ENDPT(hc32toh(sc, itd->itd_bp[0])));
+ printf(" bp[1]=0x%08x\n", hc32toh(sc, itd->itd_bp[1]));
printf(" dir=%s; mpl=0x%02x\n",
- (ehci32toh(sc, itd->itd_bp[1]) & EHCI_ITD_SET_DIR_IN) ? "in" :
"out",
- EHCI_ITD_GET_MPL(ehci32toh(sc, itd->itd_bp[1])));
+ (hc32toh(sc, itd->itd_bp[1]) & EHCI_ITD_SET_DIR_IN) ? "in" : "out",
+ EHCI_ITD_GET_MPL(hc32toh(sc, itd->itd_bp[1])));
printf(" bp[2..6]=0x%08x,0x%08x,0x%08x,0x%08x,0x%08x\n",
- ehci32toh(sc, itd->itd_bp[2]),
- ehci32toh(sc, itd->itd_bp[3]),
- ehci32toh(sc, itd->itd_bp[4]),
- ehci32toh(sc, itd->itd_bp[5]),
- ehci32toh(sc, itd->itd_bp[6]));
+ hc32toh(sc, itd->itd_bp[2]),
+ hc32toh(sc, itd->itd_bp[3]),
+ hc32toh(sc, itd->itd_bp[4]),
+ hc32toh(sc, itd->itd_bp[5]),
+ hc32toh(sc, itd->itd_bp[6]));
printf(" bp_hi=0x%08x,0x%08x,0x%08x,0x%08x,\n"
" 0x%08x,0x%08x,0x%08x\n",
- ehci32toh(sc, itd->itd_bp_hi[0]),
- ehci32toh(sc, itd->itd_bp_hi[1]),
- ehci32toh(sc, itd->itd_bp_hi[2]),
- ehci32toh(sc, itd->itd_bp_hi[3]),
- ehci32toh(sc, itd->itd_bp_hi[4]),
- ehci32toh(sc, itd->itd_bp_hi[5]),
- ehci32toh(sc, itd->itd_bp_hi[6]));
+ hc32toh(sc, itd->itd_bp_hi[0]),
+ hc32toh(sc, itd->itd_bp_hi[1]),
+ hc32toh(sc, itd->itd_bp_hi[2]),
+ hc32toh(sc, itd->itd_bp_hi[3]),
+ hc32toh(sc, itd->itd_bp_hi[4]),
+ hc32toh(sc, itd->itd_bp_hi[5]),
+ hc32toh(sc, itd->itd_bp_hi[6]));
}
static void
@@ -1148,7 +1144,7 @@ ehci_non_isoc_done_sub(struct usb2_xfer
while (1) {
usb2_pc_cpu_invalidate(td->page_cache);
- status = ehci32toh(sc, td->qtd_status);
+ status = hc32toh(sc, td->qtd_status);
len = EHCI_QTD_GET_BYTES(status);
@@ -1305,13 +1301,13 @@ ehci_check_transfer(struct usb2_xfer *xf
td = xfer->td_transfer_last;
usb2_pc_cpu_invalidate(td->page_cache);
- status = ehci32toh(sc, td->sitd_status);
+ status = hc32toh(sc, td->sitd_status);
/* also check if first is complete */
td = xfer->td_transfer_first;
usb2_pc_cpu_invalidate(td->page_cache);
- status |= ehci32toh(sc, td->sitd_status);
+ status |= hc32toh(sc, td->sitd_status);
if (!(status & EHCI_SITD_ACTIVE)) {
ehci_device_done(xfer, USB_ERR_NORMAL_COMPLETION);
@@ -1340,7 +1336,7 @@ ehci_check_transfer(struct usb2_xfer *xf
td->itd_status[6] | td->itd_status[7];
/* if no transactions are active we continue */
- if (!(status & htoehci32(sc, EHCI_ITD_ACTIVE))) {
+ if (!(status & htohc32(sc, EHCI_ITD_ACTIVE))) {
ehci_device_done(xfer, USB_ERR_NORMAL_COMPLETION);
goto transferred;
}
@@ -1357,7 +1353,7 @@ ehci_check_transfer(struct usb2_xfer *xf
while (1) {
usb2_pc_cpu_invalidate(td->page_cache);
- status = ehci32toh(sc, td->qtd_status);
+ status = hc32toh(sc, td->qtd_status);
/*
* if there is an active TD the transfer isn't done
@@ -1553,7 +1549,7 @@ ehci_setup_standard_chain_sub(struct ehc
uint8_t shortpkt_old;
uint8_t precompute;
- qtd_altnext = htoehci32(temp->sc, EHCI_LINK_TERMINATE);
+ qtd_altnext = htohc32(temp->sc, EHCI_LINK_TERMINATE);
td_alt_next = NULL;
buf_offset = 0;
shortpkt_old = temp->shortpkt;
@@ -1611,7 +1607,7 @@ restart:
td->qtd_status =
temp->qtd_status |
- htoehci32(temp->sc, EHCI_QTD_SET_BYTES(average));
+ htohc32(temp->sc, EHCI_QTD_SET_BYTES(average));
if (average == 0) {
@@ -1620,7 +1616,7 @@ restart:
/* update data toggle, ZLP case */
temp->qtd_status ^=
- htoehci32(temp->sc, EHCI_QTD_TOGGLE_MASK);
+ htohc32(temp->sc, EHCI_QTD_TOGGLE_MASK);
}
td->len = 0;
@@ -1641,7 +1637,7 @@ restart:
if (((average + temp->max_frame_size - 1) /
temp->max_frame_size) & 1) {
temp->qtd_status ^=
- htoehci32(temp->sc,
EHCI_QTD_TOGGLE_MASK);
+ htohc32(temp->sc,
EHCI_QTD_TOGGLE_MASK);
}
}
td->len = average;
@@ -1654,7 +1650,7 @@ restart:
usb2_get_page(temp->pc, buf_offset, &buf_res);
td->qtd_buffer[0] =
- htoehci32(temp->sc, buf_res.physaddr);
+ htohc32(temp->sc, buf_res.physaddr);
td->qtd_buffer_hi[0] = 0;
x = 1;
@@ -1664,7 +1660,7 @@ restart:
buf_offset += EHCI_PAGE_SIZE;
usb2_get_page(temp->pc, buf_offset, &buf_res);
td->qtd_buffer[x] =
- htoehci32(temp->sc,
+ htohc32(temp->sc,
buf_res.physaddr & (~0xFFF));
td->qtd_buffer_hi[x] = 0;
x++;
@@ -1681,7 +1677,7 @@ restart:
buf_offset += average;
usb2_get_page(temp->pc, buf_offset - 1, &buf_res);
td->qtd_buffer[x] =
- htoehci32(temp->sc,
+ htohc32(temp->sc,
buf_res.physaddr & (~0xFFF));
td->qtd_buffer_hi[x] = 0;
}
@@ -1757,7 +1753,7 @@ ehci_setup_standard_chain(struct usb2_xf
if (xfer->pipe->toggle_next) {
/* DATA1 is next */
temp.qtd_status |=
- htoehci32(temp.sc, EHCI_QTD_SET_TOGGLE(1));
+ htohc32(temp.sc, EHCI_QTD_SET_TOGGLE(1));
}
temp.auto_data_toggle = 0;
} else {
@@ -1767,7 +1763,7 @@ ehci_setup_standard_chain(struct usb2_xf
if (usb2_get_speed(xfer->xroot->udev) != USB_SPEED_HIGH) {
/* max 3 retries */
temp.qtd_status |=
- htoehci32(temp.sc, EHCI_QTD_SET_CERR(3));
+ htohc32(temp.sc, EHCI_QTD_SET_CERR(3));
}
/* check if we should prepend a setup message */
@@ -1775,8 +1771,8 @@ ehci_setup_standard_chain(struct usb2_xf
if (xfer->flags_int.control_hdr) {
temp.qtd_status &=
- htoehci32(temp.sc, EHCI_QTD_SET_CERR(3));
- temp.qtd_status |= htoehci32(temp.sc,
+ htohc32(temp.sc, EHCI_QTD_SET_CERR(3));
+ temp.qtd_status |= htohc32(temp.sc,
EHCI_QTD_ACTIVE |
EHCI_QTD_SET_PID(EHCI_QTD_PID_SETUP) |
EHCI_QTD_SET_TOGGLE(0));
@@ -1807,7 +1803,7 @@ ehci_setup_standard_chain(struct usb2_xf
/* keep previous data toggle and error count */
temp.qtd_status &=
- htoehci32(temp.sc, EHCI_QTD_SET_CERR(3) |
+ htohc32(temp.sc, EHCI_QTD_SET_CERR(3) |
EHCI_QTD_SET_TOGGLE(1));
if (temp.len == 0) {
@@ -1827,9 +1823,9 @@ ehci_setup_standard_chain(struct usb2_xf
temp.qtd_status |=
(UE_GET_DIR(xfer->endpoint) == UE_DIR_IN) ?
- htoehci32(temp.sc, EHCI_QTD_ACTIVE |
+ htohc32(temp.sc, EHCI_QTD_ACTIVE |
EHCI_QTD_SET_PID(EHCI_QTD_PID_IN)) :
- htoehci32(temp.sc, EHCI_QTD_ACTIVE |
+ htohc32(temp.sc, EHCI_QTD_ACTIVE |
EHCI_QTD_SET_PID(EHCI_QTD_PID_OUT));
ehci_setup_standard_chain_sub(&temp);
@@ -1845,14 +1841,14 @@ ehci_setup_standard_chain(struct usb2_xf
* direction.
*/
- temp.qtd_status &= htoehci32(temp.sc, EHCI_QTD_SET_CERR(3) |
+ temp.qtd_status &= htohc32(temp.sc, EHCI_QTD_SET_CERR(3) |
EHCI_QTD_SET_TOGGLE(1));
temp.qtd_status |=
(UE_GET_DIR(xfer->endpoint) == UE_DIR_OUT) ?
- htoehci32(temp.sc, EHCI_QTD_ACTIVE |
+ htohc32(temp.sc, EHCI_QTD_ACTIVE |
EHCI_QTD_SET_PID(EHCI_QTD_PID_IN) |
EHCI_QTD_SET_TOGGLE(1)) :
- htoehci32(temp.sc, EHCI_QTD_ACTIVE |
+ htohc32(temp.sc, EHCI_QTD_ACTIVE |
EHCI_QTD_SET_PID(EHCI_QTD_PID_OUT) |
EHCI_QTD_SET_TOGGLE(1));
@@ -1865,9 +1861,9 @@ ehci_setup_standard_chain(struct usb2_xf
td = temp.td;
/* the last TD terminates the transfer: */
- td->qtd_next = htoehci32(temp.sc, EHCI_LINK_TERMINATE);
- td->qtd_altnext = htoehci32(temp.sc, EHCI_LINK_TERMINATE);
- td->qtd_status |= htoehci32(temp.sc, EHCI_QTD_IOC);
+ td->qtd_next = htohc32(temp.sc, EHCI_LINK_TERMINATE);
+ td->qtd_altnext = htohc32(temp.sc, EHCI_LINK_TERMINATE);
+ td->qtd_status |= htohc32(temp.sc, EHCI_QTD_IOC);
usb2_pc_cpu_flush(td->page_cache);
@@ -1919,7 +1915,7 @@ ehci_setup_standard_chain(struct usb2_xf
}
}
- qh->qh_endp = htoehci32(temp.sc, qh_endp);
+ qh->qh_endp = htohc32(temp.sc, qh_endp);
qh_endphub =
(EHCI_QH_SET_MULT(xfer->max_packet_count & 3) |
@@ -1928,29 +1924,29 @@ ehci_setup_standard_chain(struct usb2_xf
EHCI_QH_SET_HUBA(xfer->xroot->udev->hs_hub_addr) |
EHCI_QH_SET_PORT(xfer->xroot->udev->hs_port_no));
- qh->qh_endphub = htoehci32(temp.sc, qh_endphub);
- qh->qh_curqtd = htoehci32(temp.sc, 0);
+ qh->qh_endphub = htohc32(temp.sc, qh_endphub);
+ qh->qh_curqtd = htohc32(temp.sc, 0);
/* fill the overlay qTD */
- qh->qh_qtd.qtd_status = htoehci32(temp.sc, 0);
+ qh->qh_qtd.qtd_status = htohc32(temp.sc, 0);
if (temp.auto_data_toggle) {
/* let the hardware compute the data toggle */
- qh->qh_endp &= htoehci32(temp.sc, ~EHCI_QH_DTC);
+ qh->qh_endp &= htohc32(temp.sc, ~EHCI_QH_DTC);
if (xfer->pipe->toggle_next) {
/* DATA1 is next */
qh->qh_qtd.qtd_status |=
- htoehci32(temp.sc, EHCI_QTD_SET_TOGGLE(1));
+ htohc32(temp.sc, EHCI_QTD_SET_TOGGLE(1));
}
}
td = xfer->td_transfer_first;
qh->qh_qtd.qtd_next = td->qtd_self;
qh->qh_qtd.qtd_altnext =
- htoehci32(temp.sc, EHCI_LINK_TERMINATE);
+ htohc32(temp.sc, EHCI_LINK_TERMINATE);
usb2_pc_cpu_flush(qh->page_cache);
@@ -2027,7 +2023,7 @@ ehci_isoc_fs_done(ehci_softc_t *sc, stru
}
#endif
usb2_pc_cpu_invalidate(td->page_cache);
- status = ehci32toh(sc, td->sitd_status);
+ status = hc32toh(sc, td->sitd_status);
len = EHCI_SITD_GET_LEN(status);
@@ -2080,7 +2076,7 @@ ehci_isoc_hs_done(ehci_softc_t *sc, stru
#endif
usb2_pc_cpu_invalidate(td->page_cache);
- status = ehci32toh(sc, td->itd_status[td_no]);
+ status = hc32toh(sc, td->itd_status[td_no]);
len = EHCI_ITD_GET_LEN(status);
@@ -2377,7 +2373,7 @@ ehci_device_isoc_fs_open(struct usb2_xfe
if (UE_GET_DIR(xfer->endpoint) == UE_DIR_IN) {
sitd_portaddr |= EHCI_SITD_SET_DIR_IN;
}
- sitd_portaddr = htoehci32(sc, sitd_portaddr);
+ sitd_portaddr = htohc32(sc, sitd_portaddr);
/* initialize all TD's */
@@ -2394,7 +2390,7 @@ ehci_device_isoc_fs_open(struct usb2_xfe
*
* micro-frame usage (8 microframes per 1ms)
*/
- td->sitd_back = htoehci32(sc, EHCI_LINK_TERMINATE);
+ td->sitd_back = htohc32(sc, EHCI_LINK_TERMINATE);
usb2_pc_cpu_flush(td->page_cache);
}
@@ -2541,7 +2537,7 @@ ehci_device_isoc_fs_enter(struct usb2_xf
* non-zero length
*/
usb2_get_page(xfer->frbuffers, buf_offset, &buf_res);
- td->sitd_bp[0] = htoehci32(sc, buf_res.physaddr);
+ td->sitd_bp[0] = htohc32(sc, buf_res.physaddr);
buf_offset += *plen;
/*
* NOTE: We need to subtract one from the offset so
@@ -2586,17 +2582,17 @@ ehci_device_isoc_fs_enter(struct usb2_xf
sitd_mask = (EHCI_SITD_SET_SMASK(sa) |
EHCI_SITD_SET_CMASK(sb));
- td->sitd_bp[1] = htoehci32(sc, temp);
+ td->sitd_bp[1] = htohc32(sc, temp);
- td->sitd_mask = htoehci32(sc, sitd_mask);
+ td->sitd_mask = htohc32(sc, sitd_mask);
if (nframes == 0) {
- td->sitd_status = htoehci32(sc,
+ td->sitd_status = htohc32(sc,
EHCI_SITD_IOC |
EHCI_SITD_ACTIVE |
EHCI_SITD_SET_LEN(*plen));
} else {
- td->sitd_status = htoehci32(sc,
+ td->sitd_status = htohc32(sc,
EHCI_SITD_ACTIVE |
EHCI_SITD_SET_LEN(*plen));
}
@@ -2670,7 +2666,7 @@ ehci_device_isoc_hs_open(struct usb2_xfe
td->itd_status[7] = 0;
/* set endpoint and address */
- td->itd_bp[0] = htoehci32(sc,
+ td->itd_bp[0] = htohc32(sc,
EHCI_ITD_SET_ADDR(xfer->address) |
EHCI_ITD_SET_ENDPT(UE_GET_ADDR(xfer->endpoint)));
@@ -2682,10 +2678,10 @@ ehci_device_isoc_hs_open(struct usb2_xfe
temp |= EHCI_ITD_SET_DIR_IN;
}
/* set maximum packet size */
- td->itd_bp[1] = htoehci32(sc, temp);
+ td->itd_bp[1] = htohc32(sc, temp);
/* set transfer multiplier */
- td->itd_bp[2] = htoehci32(sc, xfer->max_packet_count &
3);
+ td->itd_bp[2] = htohc32(sc, xfer->max_packet_count & 3);
usb2_pc_cpu_flush(td->page_cache);
}
@@ -2807,7 +2803,7 @@ ehci_device_isoc_hs_enter(struct usb2_xf
status = (EHCI_ITD_SET_LEN(*plen) |
EHCI_ITD_ACTIVE |
EHCI_ITD_SET_PG(0));
- td->itd_status[td_no] = htoehci32(sc, status);
+ td->itd_status[td_no] = htohc32(sc, status);
itd_offset[td_no] = buf_offset;
buf_offset += *plen;
plen++;
@@ -2830,14 +2826,14 @@ ehci_device_isoc_hs_enter(struct usb2_xf
/* get page address */
page_addr = buf_res.physaddr & ~0xFFF;
/* update page address */
- td->itd_bp[0] &= htoehci32(sc, 0xFFF);
- td->itd_bp[0] |= htoehci32(sc, page_addr);
+ td->itd_bp[0] &= htohc32(sc, 0xFFF);
+ td->itd_bp[0] |= htohc32(sc, page_addr);
for (x = 0; x != td_no; x++) {
/* set page number and page offset */
status = (EHCI_ITD_SET_PG(page_no) |
(buf_res.physaddr & 0xFFF));
- td->itd_status[x] |= htoehci32(sc,
status);
+ td->itd_status[x] |= htohc32(sc,
status);
/* get next page offset */
if (itd_offset[x + 1] == buf_offset) {
@@ -2860,14 +2856,14 @@ ehci_device_isoc_hs_enter(struct usb2_xf
}
page_no++;
/* update page address */
- td->itd_bp[page_no] &=
htoehci32(sc, 0xFFF);
- td->itd_bp[page_no] |=
htoehci32(sc, page_addr);
+ td->itd_bp[page_no] &=
htohc32(sc, 0xFFF);
+ td->itd_bp[page_no] |=
htohc32(sc, page_addr);
}
}
}
/* set IOC bit if we are complete */
if (nframes == 0) {
- td->itd_status[7] |= htoehci32(sc,
EHCI_ITD_IOC);
+ td->itd_status[7] |= htohc32(sc, EHCI_ITD_IOC);
}
usb2_pc_cpu_flush(td->page_cache);
#if USB_DEBUG
@@ -3300,7 +3296,7 @@ ehci_root_ctrl_done(struct usb2_xfer *xf
}
v = EOREAD4(sc, EHCI_PORTSC(index));
DPRINTFN(9, "port status=0x%04x\n", v);
- if (sc->sc_flags & EHCI_SCFLG_FORCESPEED) {
+ if (sc->sc_flags & (EHCI_SCFLG_FORCESPEED | EHCI_SCFLG_TT)) {
if ((v & 0xc000000) == 0x8000000)
i = UPS_HIGH_SPEED;
else if ((v & 0xc000000) == 0x4000000)
@@ -3369,7 +3365,8 @@ ehci_root_ctrl_done(struct usb2_xfer *xf
break;
}
#endif
- if (EHCI_PS_IS_LOWSPEED(v)) {
+ if (EHCI_PS_IS_LOWSPEED(v) &&
+ (sc->sc_flags & EHCI_SCFLG_TT) == 0) {
/* Low speed device, give up ownership. */
ehci_disown(sc, index, 1);
break;
@@ -3398,11 +3395,9 @@ ehci_root_ctrl_done(struct usb2_xfer *xf
std->err = USB_ERR_TIMEOUT;
goto done;
}
- if (!(v & EHCI_PS_PE)) {
- /*
- * Not a high speed device, give up
- * ownership.
- */
+ if (!(v & EHCI_PS_PE) &&
+ (sc->sc_flags & EHCI_SCFLG_TT) == 0) {
+ /* Not a high speed device, give up ownership.*/
ehci_disown(sc, index, 0);
break;
}
@@ -3662,7 +3657,7 @@ alloc_dma_set:
td = page_info.buffer;
/* init TD */
- td->itd_self = htoehci32(sc, page_info.physaddr |
EHCI_LINK_ITD);
+ td->itd_self = htohc32(sc, page_info.physaddr |
EHCI_LINK_ITD);
td->obj_next = last_obj;
td->page_cache = pc + n;
@@ -3686,7 +3681,7 @@ alloc_dma_set:
td = page_info.buffer;
/* init TD */
- td->sitd_self = htoehci32(sc, page_info.physaddr |
EHCI_LINK_SITD);
+ td->sitd_self = htohc32(sc, page_info.physaddr |
EHCI_LINK_SITD);
td->obj_next = last_obj;
td->page_cache = pc + n;
@@ -3710,7 +3705,7 @@ alloc_dma_set:
qtd = page_info.buffer;
/* init TD */
- qtd->qtd_self = htoehci32(sc, page_info.physaddr);
+ qtd->qtd_self = htohc32(sc, page_info.physaddr);
qtd->obj_next = last_obj;
qtd->page_cache = pc + n;
@@ -3738,7 +3733,7 @@ alloc_dma_set:
qh = page_info.buffer;
/* init QH */
- qh->qh_self = htoehci32(sc, page_info.physaddr |
EHCI_LINK_QH);
+ qh->qh_self = htohc32(sc, page_info.physaddr |
EHCI_LINK_QH);
qh->obj_next = last_obj;
qh->page_cache = pc + n;
Modified: head/sys/dev/usb/controller/ehci.h
==============================================================================
--- head/sys/dev/usb/controller/ehci.h Sat Mar 7 19:13:59 2009
(r189495)
+++ head/sys/dev/usb/controller/ehci.h Sat Mar 7 19:49:47 2009
(r189496)
@@ -520,8 +520,67 @@ typedef struct ehci_softc {
#define EOWRITE4(sc, a, x)
\
bus_space_write_4((sc)->sc_io_tag, (sc)->sc_io_hdl,
(sc)->sc_offs+(a), (x))
+#ifdef USB_EHCI_BIG_ENDIAN_DESC
+/*
+ * Handle byte order conversion between host and ``host controller''.
+ * Typically the latter is little-endian but some controllers require
+ * big-endian in which case we may need to manually swap.
+ */
+static __inline uint32_t
+htohc32(const struct ehci_softc *sc, const uint32_t v)
+{
+ return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? htobe32(v) : htole32(v);
+}
+
+static __inline uint16_t
+htohc16(const struct ehci_softc *sc, const uint16_t v)
+{
+ return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? htobe16(v) : htole16(v);
+}
+
+static __inline uint32_t
+hc32toh(const struct ehci_softc *sc, const uint32_t v)
+{
+ return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? be32toh(v) : le32toh(v);
+}
+
+static __inline uint16_t
+hc16toh(const struct ehci_softc *sc, const uint16_t v)
+{
+ return sc->sc_flags & EHCI_SCFLG_BIGEDESC ? be16toh(v) : le16toh(v);
+}
+#else
+/*
+ * Normal little-endian only conversion routines.
+ */
+static __inline uint32_t
+htohc32(const struct ehci_softc *sc, const uint32_t v)
+{
+ return htole32(v);
+}
+
+static __inline uint16_t
+htohc16(const struct ehci_softc *sc, const uint16_t v)
+{
+ return htole16(v);
+}
+
+static __inline uint32_t
+hc32toh(const struct ehci_softc *sc, const uint32_t v)
+{
+ return le32toh(v);
+}
+
+static __inline uint16_t
+hc16toh(const struct ehci_softc *sc, const uint16_t v)
+{
+ return le16toh(v);
+}
+#endif
+
usb2_bus_mem_cb_t ehci_iterate_hw_softc;
+usb2_error_t ehci_reset(ehci_softc_t *sc);
usb2_error_t ehci_init(ehci_softc_t *sc);
void ehci_detach(struct ehci_softc *sc);
void ehci_suspend(struct ehci_softc *sc);
Modified: head/sys/dev/usb/controller/ehci_ixp4xx.c
==============================================================================
--- head/sys/dev/usb/controller/ehci_ixp4xx.c Sat Mar 7 19:13:59 2009
(r189495)
+++ head/sys/dev/usb/controller/ehci_ixp4xx.c Sat Mar 7 19:49:47 2009
(r189496)
@@ -211,6 +211,7 @@ ehci_ixp_attach(device_t self)
| EHCI_SCFLG_BIGEMMIO
| EHCI_SCFLG_NORESTERM
;
+ (void) ehci_reset(sc);
err = ehci_init(sc);
if (!err) {
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