diff options
Diffstat (limited to 'pfinet/linux-src/include/linux/dmascc.h')
| -rw-r--r-- | pfinet/linux-src/include/linux/dmascc.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/linux/dmascc.h b/pfinet/linux-src/include/linux/dmascc.h new file mode 100644 index 00000000..01b46df7 --- /dev/null +++ b/pfinet/linux-src/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 */ +}; + |