diff options
| author | Nathan Binkert <nate@cvs.openbsd.org> | 2002-07-29 03:01:49 +0000 |
|---|---|---|
| committer | Nathan Binkert <nate@cvs.openbsd.org> | 2002-07-29 03:01:49 +0000 |
| commit | fa49780ea82c09c73f6f69b13542101d42845506 (patch) | |
| tree | e4eb3d561a6a8810e1cfccd6417fd8bc7aec1510 | |
| parent | 4086530d708bed9831a330ef620e851147763eee (diff) | |
Update from NetBSD. Log message:
Add code to setup hardware or software flow control (or none at
all, if necessary) depending on the user-specified termios flags.
This allows the device to talk to DCEs which don't assert RTS
(i.e. dumb, 3-wire serial ports).
| -rw-r--r-- | sys/dev/usb/uftdi.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/sys/dev/usb/uftdi.c b/sys/dev/usb/uftdi.c index f02d9ec0f20..027e63ac443 100644 --- a/sys/dev/usb/uftdi.c +++ b/sys/dev/usb/uftdi.c @@ -1,5 +1,5 @@ -/* $OpenBSD: uftdi.c,v 1.8 2002/07/25 02:18:10 nate Exp $ */ -/* $NetBSD: uftdi.c,v 1.10 2002/05/08 18:10:19 scw Exp $ */ +/* $OpenBSD: uftdi.c,v 1.9 2002/07/29 03:01:48 nate Exp $ */ +/* $NetBSD: uftdi.c,v 1.12 2002/07/18 14:44:10 scw Exp $ */ /* * Copyright (c) 2000 The NetBSD Foundation, Inc. @@ -425,7 +425,7 @@ uftdi_param(void *vsc, int portno, struct termios *t) struct uftdi_softc *sc = vsc; usb_device_request_t req; usbd_status err; - int rate, data; + int rate, data, flow; DPRINTF(("uftdi_param: sc=%p\n", sc)); @@ -521,6 +521,24 @@ uftdi_param(void *vsc, int portno, struct termios *t) if (err) return (EIO); + if (ISSET(t->c_cflag, CRTSCTS)) { + flow = FTDI_SIO_RTS_CTS_HS; + USETW(req.wValue, 0); + } else if (ISSET(t->c_iflag, IXON|IXOFF)) { + flow = FTDI_SIO_XON_XOFF_HS; + USETW2(req.wValue, t->c_cc[VSTOP], t->c_cc[VSTART]); + } else { + flow = FTDI_SIO_DISABLE_FLOW_CTRL; + USETW(req.wValue, 0); + } + req.bmRequestType = UT_WRITE_VENDOR_DEVICE; + req.bRequest = FTDI_SIO_SET_FLOW_CTRL; + USETW2(req.wIndex, flow, portno); + USETW(req.wLength, 0); + err = usbd_do_request(sc->sc_udev, &req, NULL); + if (err) + return (EIO); + return (0); } |