Make control transfer of over 8K possible by using a chain of TDs.
This commit is contained in:
augustss
parent
c6eb2d324c
commit
9762d78a52
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: ohci.c,v 1.76 2000/03/16 12:40:51 tsutsui Exp $ */
|
||||
/* $NetBSD: ohci.c,v 1.77 2000/03/19 22:24:57 augustss Exp $ */
|
||||
/* $FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $ */
|
||||
|
||||
/*
|
||||
@ -127,7 +127,7 @@ static void ohci_free_std_chain __P((ohci_softc_t *,
|
||||
ohci_soft_td_t *, ohci_soft_td_t *));
|
||||
#endif
|
||||
static usbd_status ohci_alloc_std_chain __P((struct ohci_pipe *,
|
||||
ohci_softc_t *, int, int, u_int16_t, usb_dma_t *,
|
||||
ohci_softc_t *, int, int, usbd_xfer_handle,
|
||||
ohci_soft_td_t *, ohci_soft_td_t **));
|
||||
|
||||
static void ohci_shutdown __P((void *v));
|
||||
@ -468,18 +468,19 @@ ohci_free_std(sc, std)
|
||||
}
|
||||
|
||||
usbd_status
|
||||
ohci_alloc_std_chain(opipe, sc, alen, rd, flags, dma, sp, ep)
|
||||
ohci_alloc_std_chain(opipe, sc, alen, rd, xfer, sp, ep)
|
||||
struct ohci_pipe *opipe;
|
||||
ohci_softc_t *sc;
|
||||
int alen, rd;
|
||||
u_int16_t flags;
|
||||
usb_dma_t *dma;
|
||||
usbd_xfer_handle xfer;
|
||||
ohci_soft_td_t *sp, **ep;
|
||||
{
|
||||
ohci_soft_td_t *next, *cur;
|
||||
ohci_physaddr_t dataphys, dataphysend;
|
||||
u_int32_t intr, tdflags;
|
||||
u_int32_t tdflags;
|
||||
int len, curlen;
|
||||
usb_dma_t *dma = &xfer->dmabuf;
|
||||
u_int16_t flags = xfer->flags;
|
||||
|
||||
DPRINTFN(alen < 4096,("ohci_alloc_std_chain: start len=%d\n", alen));
|
||||
|
||||
@ -487,10 +488,10 @@ ohci_alloc_std_chain(opipe, sc, alen, rd, flags, dma, sp, ep)
|
||||
cur = sp;
|
||||
dataphys = DMAADDR(dma);
|
||||
dataphysend = OHCI_PAGE(dataphys + len - 1);
|
||||
tdflags =
|
||||
tdflags = htole32(
|
||||
(rd ? OHCI_TD_IN : OHCI_TD_OUT) |
|
||||
OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY |
|
||||
(flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0);
|
||||
(flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0) |
|
||||
OHCI_TD_NOCC | OHCI_TD_TOGGLE_CARRY | OHCI_TD_NOINTR);
|
||||
|
||||
for (;;) {
|
||||
next = ohci_alloc_std(sc);
|
||||
@ -513,14 +514,14 @@ ohci_alloc_std_chain(opipe, sc, alen, rd, flags, dma, sp, ep)
|
||||
len, curlen));
|
||||
len -= curlen;
|
||||
|
||||
intr = len == 0 ? OHCI_TD_SET_DI(1) : OHCI_TD_NOINTR;
|
||||
cur->td.td_flags = htole32(tdflags | intr);
|
||||
cur->td.td_flags = tdflags;
|
||||
cur->td.td_cbp = htole32(dataphys);
|
||||
cur->nexttd = next;
|
||||
cur->td.td_nexttd = htole32(next->physaddr);
|
||||
cur->td.td_be = htole32(dataphys + curlen - 1);
|
||||
cur->len = curlen;
|
||||
cur->flags = OHCI_ADD_LEN;
|
||||
cur->xfer = xfer;
|
||||
DPRINTFN(10,("ohci_alloc_std_chain: cbp=0x%08x be=0x%08x\n",
|
||||
dataphys, dataphys + curlen - 1));
|
||||
if (len == 0)
|
||||
@ -533,24 +534,22 @@ ohci_alloc_std_chain(opipe, sc, alen, rd, flags, dma, sp, ep)
|
||||
alen % UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize) == 0) {
|
||||
/* Force a 0 length transfer at the end. */
|
||||
|
||||
cur->td.td_flags = htole32(tdflags | OHCI_TD_NOINTR);
|
||||
cur = next;
|
||||
|
||||
next = ohci_alloc_std(sc);
|
||||
if (next == NULL)
|
||||
goto nomem;
|
||||
|
||||
cur->td.td_flags = htole32(tdflags | OHCI_TD_SET_DI(1));
|
||||
cur->td.td_flags = tdflags;
|
||||
cur->td.td_cbp = 0; /* indicate 0 length packet */
|
||||
cur->nexttd = next;
|
||||
cur->td.td_nexttd = htole32(next->physaddr);
|
||||
cur->td.td_be = ~0;
|
||||
cur->len = 0;
|
||||
cur->flags = 0;
|
||||
cur->xfer = xfer;
|
||||
DPRINTFN(2,("ohci_alloc_std_chain: add 0 xfer\n"));
|
||||
}
|
||||
cur->flags |= OHCI_CALL_DONE;
|
||||
*ep = next;
|
||||
*ep = cur;
|
||||
|
||||
return (USBD_NORMAL_COMPLETION);
|
||||
|
||||
@ -1399,7 +1398,7 @@ ohci_device_request(xfer)
|
||||
usbd_device_handle dev = opipe->pipe.device;
|
||||
ohci_softc_t *sc = (ohci_softc_t *)dev->bus;
|
||||
int addr = dev->address;
|
||||
ohci_soft_td_t *setup, *data = 0, *stat, *next, *tail;
|
||||
ohci_soft_td_t *setup, *stat, *next, *tail;
|
||||
ohci_soft_ed_t *sed;
|
||||
int isread;
|
||||
int len;
|
||||
@ -1433,36 +1432,26 @@ ohci_device_request(xfer)
|
||||
|
||||
/* Update device address and length since they may have changed. */
|
||||
/* XXX This only needs to be done once, but it's too early in open. */
|
||||
/* XXXX Should not touch ED here! */
|
||||
sed->ed.ed_flags = htole32(
|
||||
(le32toh(sed->ed.ed_flags) & ~(OHCI_ED_ADDRMASK | OHCI_ED_MAXPMASK)) |
|
||||
OHCI_ED_SET_FA(addr) |
|
||||
OHCI_ED_SET_MAXP(UGETW(opipe->pipe.endpoint->edesc->wMaxPacketSize)));
|
||||
|
||||
next = stat;
|
||||
|
||||
/* Set up data transaction */
|
||||
if (len != 0) {
|
||||
data = ohci_alloc_std(sc);
|
||||
if (data == NULL) {
|
||||
err = USBD_NOMEM;
|
||||
goto bad3;
|
||||
}
|
||||
data->td.td_flags = htole32(
|
||||
(isread ? OHCI_TD_IN : OHCI_TD_OUT) | OHCI_TD_NOCC |
|
||||
OHCI_TD_TOGGLE_1 | OHCI_TD_NOINTR |
|
||||
(xfer->flags & USBD_SHORT_XFER_OK ? OHCI_TD_R : 0));
|
||||
data->td.td_cbp = htole32(DMAADDR(&xfer->dmabuf));
|
||||
data->nexttd = stat;
|
||||
data->td.td_nexttd = htole32(stat->physaddr);
|
||||
data->td.td_be = htole32(le32toh(data->td.td_cbp) + len - 1);
|
||||
data->len = len;
|
||||
data->xfer = xfer;
|
||||
data->flags = OHCI_ADD_LEN;
|
||||
ohci_soft_td_t *std = stat;
|
||||
|
||||
next = data;
|
||||
stat->flags = OHCI_CALL_DONE;
|
||||
} else {
|
||||
next = stat;
|
||||
/* XXX ADD_LEN? */
|
||||
stat->flags = OHCI_CALL_DONE | OHCI_ADD_LEN;
|
||||
err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer,
|
||||
std, &stat);
|
||||
stat = stat->nexttd; /* point at free TD */
|
||||
if (err)
|
||||
goto bad3;
|
||||
/* Start toggle at 1 and then use the carried toggle. */
|
||||
std->td.td_flags &= htole32(~OHCI_TD_TOGGLE_MASK);
|
||||
std->td.td_flags |= htole32(OHCI_TD_TOGGLE_1);
|
||||
}
|
||||
|
||||
memcpy(KERNADDR(&opipe->u.ctl.reqdma), req, sizeof *req);
|
||||
@ -1473,18 +1462,19 @@ ohci_device_request(xfer)
|
||||
setup->nexttd = next;
|
||||
setup->td.td_nexttd = htole32(next->physaddr);
|
||||
setup->td.td_be = htole32(le32toh(setup->td.td_cbp) + sizeof *req - 1);
|
||||
setup->len = 0; /* XXX The number of byte we count */
|
||||
setup->len = 0;
|
||||
setup->xfer = xfer;
|
||||
setup->flags = 0;
|
||||
xfer->hcpriv = setup;
|
||||
|
||||
stat->td.td_flags = htole32(
|
||||
(isread ? OHCI_TD_OUT : OHCI_TD_IN) | OHCI_TD_NOCC |
|
||||
OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1));
|
||||
(isread ? OHCI_TD_OUT : OHCI_TD_IN) |
|
||||
OHCI_TD_NOCC | OHCI_TD_TOGGLE_1 | OHCI_TD_SET_DI(1));
|
||||
stat->td.td_cbp = 0;
|
||||
stat->nexttd = tail;
|
||||
stat->td.td_nexttd = htole32(tail->physaddr);
|
||||
stat->td.td_be = 0;
|
||||
stat->flags = OHCI_CALL_DONE;
|
||||
stat->len = 0;
|
||||
stat->xfer = xfer;
|
||||
|
||||
@ -1507,9 +1497,9 @@ ohci_device_request(xfer)
|
||||
}
|
||||
splx(s);
|
||||
|
||||
#ifdef OHCI_DEBUG
|
||||
if (ohcidebug > 5) {
|
||||
usb_delay_ms(&sc->sc_bus, 5);
|
||||
#if 0
|
||||
if (ohcidebug > 10) {
|
||||
delay(10000);
|
||||
DPRINTF(("ohci_device_request: status=%x\n",
|
||||
OREAD4(sc, OHCI_COMMAND_STATUS)));
|
||||
ohci_dump_ed(sed);
|
||||
@ -2509,8 +2499,13 @@ ohci_device_bulk_start(xfer)
|
||||
|
||||
/* Allocate a chain of new TDs (including a new tail). */
|
||||
data = opipe->tail.td;
|
||||
err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer->flags,
|
||||
&xfer->dmabuf, data, &tail);
|
||||
err = ohci_alloc_std_chain(opipe, sc, len, isread, xfer,
|
||||
data, &tail);
|
||||
/* We want interrupt at the end of the transfer. */
|
||||
tail->td.td_flags &= htole32(~OHCI_TD_INTR_MASK);
|
||||
tail->td.td_flags |= htole32(OHCI_TD_SET_DI(1));
|
||||
tail->flags |= OHCI_CALL_DONE;
|
||||
tail = tail->nexttd; /* point at sentinel */
|
||||
if (err)
|
||||
return (err);
|
||||
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: ohcireg.h,v 1.14 2000/01/31 22:35:14 augustss Exp $ */
|
||||
/* $NetBSD: ohcireg.h,v 1.15 2000/03/19 22:24:58 augustss Exp $ */
|
||||
/* $FreeBSD: src/sys/dev/usb/ohcireg.h,v 1.8 1999/11/17 22:33:40 n_hibma Exp $ */
|
||||
|
||||
|
||||
@ -185,9 +185,11 @@ typedef struct {
|
||||
#define OHCI_TD_GET_DI(x) (((x) >> 21) & 7) /* Delay Interrupt */
|
||||
#define OHCI_TD_SET_DI(x) ((x) << 21)
|
||||
#define OHCI_TD_NOINTR 0x00e00000
|
||||
#define OHCI_TD_INTR_MASK 0x00e00000
|
||||
#define OHCI_TD_TOGGLE_CARRY 0x00000000
|
||||
#define OHCI_TD_TOGGLE_0 0x02000000
|
||||
#define OHCI_TD_TOGGLE_1 0x03000000
|
||||
#define OHCI_TD_TOGGLE_MASK 0x03000000
|
||||
#define OHCI_TD_GET_EC(x) (((x) >> 26) & 3) /* Error Count */
|
||||
#define OHCI_TD_GET_CC(x) ((x) >> 28) /* Condition Code */
|
||||
#define OHCI_TD_NOCC 0xf0000000
|
||||
|
||||
Loading…
Reference in New Issue
Block a user