patch-2.1.73 linux/include/linux/dmascc.h

• Lines: 44
• Date: Tue Dec 9 09:49:59 1997
• Orig file: v2.1.72/linux/include/linux/dmascc.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.72/linux/include/linux/dmascc.h linux/include/linux/dmascc.h
@@ -0,0 +1,43 @@
+/*
+ * $Id: dmascc.h,v 1.1 1997/12/01 10:44:55 oe1kib Exp $
+ *
+ * Driver for high-speed SCC boards (those with DMA support)
+ * Copyright (C) 1997 Klaus Kudielka
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* Ioctls */
+#define SIOCGSCCPARAM SIOCDEVPRIVATE
+#define SIOCSSCCPARAM (SIOCDEVPRIVATE+1)
+
+/* Frequency of timer 0 */
+#define TMR_0_HZ      25600
+
+/* Configurable parameters */
+struct scc_param {
+  int pclk_hz;  /* frequency of BRG input (read-only - don't change) */
+  int brg_tc;   /* baud rate generator terminal count - BRG disabled if < 0 */
+  int nrzi;     /* 0 (nrz), 1 (nrzi) */
+  int clocks;   /* see documentation */
+  int txdelay;  /* [1/TMR_0_HZ] */
+  int txtime;   /* [1/HZ] */
+  int sqdelay;  /* [1/TMR_0_HZ] */
+  int waittime; /* [1/TMR_0_HZ] */
+  int slottime; /* [1/TMR_0_HZ] */
+  int persist;  /* 0 ... 255 */
+  int dma;      /* 1, 3 */
+};
+