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[/] [or1k/] [tags/] [nog_patch_43/] [or1ksim/] [peripheral/] [ps2kbd.h] - Rev 1765
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/* ps2kbd.h -- Very simple PS/2 keyboard simulation header file Copyright (C) 2002 Marko Mlinar, markom@opencores.org This file is part of OpenRISC 1000 Architectural Simulator. 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. */ #ifndef _PS2KBD_H_ #define _PS2KBD_H_ /* Device registers */ #define KBD_CTRL 4 #define KBD_DATA 0 #define KBD_SPACE 8 /* Keyboard commands */ #define KBD_KCMD_RST 0xFF #define KBD_KCMD_DK 0xF5 #define KBD_KCMD_EK 0xF4 #define KBD_KCMD_ECHO 0xFF #define KBD_KCMD_SRL 0xED /* Keyboard responses */ #define KBD_KRESP_RSTOK 0xAA #define KBD_KRESP_ECHO 0xEE #define KBD_KRESP_ACK 0xFA /* Controller commands */ #define KBD_CCMD_RCB 0x20 #define KBD_CCMD_WCB 0x60 #define KBD_CCMD_ST1 0xAA #define KBD_CCMD_ST2 0xAB #define KBD_CCMD_DKI 0xAD #define KBD_CCMD_EKI 0xAE /* Status register bits */ #define KBD_STATUS_OBF 0x01 #define KBD_STATUS_IBF 0x02 #define KBD_STATUS_SYS 0x04 #define KBD_STATUS_A2 0x08 #define KBD_STATUS_INH 0x10 #define KBD_STATUS_MOBF 0x20 #define KBD_STATUS_TO 0x40 #define KBD_STATUS_PERR 0x80 /* Command byte register bits */ #define KBD_CCMDBYTE_INT 0x01 #define KBD_CCMDBYTE_INT2 0x02 #define KBD_CCMDBYTE_SYS 0x04 #define KBD_CCMDBYTE_EN 0x10 #define KBD_CCMDBYTE_EN2 0x20 #define KBD_CCMDBYTE_XLAT 0x40 /* Length of internal scan code fifo */ #define KBD_MAX_BUF 0x100 /* Keyboard is checked every KBD_SLOWDOWN cycle */ #define KBD_BAUD_RATE 1200 #endif /* !_PS2KBD_H_ */