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uslcom: Both CP2104 and CP2105 can support up to 2Mbps baudrate

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MFC after:	1 week
This commit is contained in:
Emmanuel Vadot 2018-04-24 19:11:05 +00:00
parent 65df124845
commit c653786de0
1 changed files with 16 additions and 1 deletions
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17
sys/dev/usb/serial/uslcom.c
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@ -612,7 +612,22 @@ uslcom_cfg_set_rts(struct ucom_softc *ucom, uint8_t onoff)
static int
uslcom_pre_param(struct ucom_softc *ucom, struct termios *t)
{
if (t->c_ospeed <= 0 || t->c_ospeed > 921600)
struct uslcom_softc *sc = ucom->sc_parent;
uint32_t maxspeed;
switch (sc->sc_partnum) {
case USLCOM_PARTNUM_CP2104:
case USLCOM_PARTNUM_CP2105:
maxspeed = 2000000;
break;
case USLCOM_PARTNUM_CP2101:
case USLCOM_PARTNUM_CP2102:
case USLCOM_PARTNUM_CP2103:
default:
maxspeed = 921600;
break;
}
if (t->c_ospeed <= 0 || t->c_ospeed > maxspeed)
return (EINVAL);
return (0);
}