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Bugfix: The data is not stored only in the first cblock, calculate the

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length of the data properly. This should be moved into a tty_subr
function.

Also, disanle the setting of the CDC_CM_OVER_DATA flag. It breaks some
modems. I don't think that ther actually is a modem that needs this.

Submitted by:		Brad Karp <bkarp@ICSI.Berkeley.EDU>
This commit is contained in:
Nick Hibma 2000-10-20 00:35:52 +00:00
parent fb2a416f3b
commit 64b78d815a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=67340
1 changed files with 8 additions and 1 deletions
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9
sys/dev/usb/umodem.c
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@ -64,6 +64,7 @@
#endif
#include <sys/conf.h>
#include <sys/tty.h>
#include <sys/clist.h>
#include <sys/file.h>
#include <sys/select.h>
#include <sys/proc.h>
@ -228,7 +229,9 @@ USB_ATTACH(umodem)
usb_endpoint_descriptor_t *ed;
usb_cdc_cm_descriptor_t *cmd;
char devinfo[1024];
#if 0
usbd_status err;
#endif
int data_ifaceno;
int i;
struct tty *tp;
@ -309,6 +312,7 @@ USB_ATTACH(umodem)
goto bad;
}
#if 0
if (sc->sc_cm_cap & USB_CDC_CM_OVER_DATA) {
err = umodem_set_comm_feature(sc, UCDC_ABSTRACT_STATE,
UCDC_DATA_MULTIPLEXED);
@ -316,6 +320,7 @@ USB_ATTACH(umodem)
goto bad;
sc->sc_cm_over_data = 1;
}
#endif
#if defined(__NetBSD__) || defined(__OpenBSD__)
sc->sc_tty = tp = ttymalloc();
@ -378,6 +383,7 @@ umodemstart(tp)
struct tty *tp;
{
struct umodem_softc *sc;
struct cblock *cbp;
int s;
u_char *data;
int cnt;
@ -427,7 +433,8 @@ umodemstart(tp)
#if defined(__NetBSD__) || defined(__OpenBSD__)
cnt = ndqb(&tp->t_outq, 0);
#elif defined(__FreeBSD__)
cnt = tp->t_outq.c_cc;
cbp = (struct cblock *) ((intptr_t) tp->t_outq.c_cf & ~CROUND);
cnt = min((char *) (cbp+1) - tp->t_outq.c_cf, tp->t_outq.c_cc);
#endif
if (cnt == 0) {