Module Name: src
Committed By: jakllsch
Date: Mon Dec 10 00:22:14 UTC 2018
Modified Files:
src/sys/dev/usb: uchcom.c
Log Message:
Don't accumulate RX data into packets on CH341.
To generate a diff of this commit:
cvs rdiff -u -r1.18 -r1.19 src/sys/dev/usb/uchcom.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/usb/uchcom.c
diff -u src/sys/dev/usb/uchcom.c:1.18 src/sys/dev/usb/uchcom.c:1.19
--- src/sys/dev/usb/uchcom.c:1.18 Mon Dec 10 00:03:11 2018
+++ src/sys/dev/usb/uchcom.c Mon Dec 10 00:22:13 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: uchcom.c,v 1.18 2018/12/10 00:03:11 jakllsch Exp $ */
+/* $NetBSD: uchcom.c,v 1.19 2018/12/10 00:22:13 jakllsch Exp $ */
/*
* Copyright (c) 2007 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uchcom.c,v 1.18 2018/12/10 00:03:11 jakllsch Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uchcom.c,v 1.19 2018/12/10 00:22:13 jakllsch Exp $");
#ifdef _KERNEL_OPT
#include "opt_usb.h"
@@ -98,6 +98,9 @@ int uchcomdebug = 0;
#define UCHCOM_VER_30 0x30
#define UCHCOM_BASE_UNKNOWN 0
+
+#define UCHCOM_BPS_PRE_IMM 0x80 /* CH341: immediate RX forwarding */
+
#define UCHCOM_BPS_MOD_BASE 20000000
#define UCHCOM_BPS_MOD_BASE_OFS 1100
@@ -706,7 +709,8 @@ set_dte_rate(struct uchcom_softc *sc, ui
return EINVAL;
if ((err = write_reg(sc,
- UCHCOM_REG_BPS_PRE, dv.dv_prescaler,
+ UCHCOM_REG_BPS_PRE,
+ dv.dv_prescaler | UCHCOM_BPS_PRE_IMM,
UCHCOM_REG_BPS_DIV, dv.dv_div)) ||
(err = write_reg(sc,
UCHCOM_REG_BPS_MOD, dv.dv_mod,
