Author: manu
Date: Tue Apr 24 19:11:05 2018
New Revision: 332963
URL: https://svnweb.freebsd.org/changeset/base/332963

Log:
  uslcom: Both CP2104 and CP2105 can support up to 2Mbps baudrate
  
  MFC after:    1 week

Modified:
  head/sys/dev/usb/serial/uslcom.c

Modified: head/sys/dev/usb/serial/uslcom.c
==============================================================================
--- head/sys/dev/usb/serial/uslcom.c    Tue Apr 24 19:10:51 2018        
(r332962)
+++ head/sys/dev/usb/serial/uslcom.c    Tue Apr 24 19:11:05 2018        
(r332963)
@@ -612,7 +612,22 @@ uslcom_cfg_set_rts(struct ucom_softc *ucom, uint8_t on
 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);
 }
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