1 /* $NetBSD: mca_machdep.h,v 1.6 2001/05/02 13:16:33 jdolecek Exp $ */ 2 3 /* 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * Copyright (c) 1999 Scott D. Telford. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef _I386_MCA_MACHDEP_H_ 31 #define _I386_MCA_MACHDEP_H_ 32 33 /* 34 * i386-specific definitions for MCA autoconfiguration. 35 */ 36 37 extern struct i386_bus_dma_tag mca_bus_dma_tag; 38 39 /* set to 1 if MCA bus is detected */ 40 extern int MCA_system; 41 42 int mca_nmi(void); 43 44 /* 45 * Types provided to machine-independent MCA code. 46 */ 47 struct i386_mca_chipset { 48 void * /*struct mca_dma_state*/ ic_dmastate; 49 }; 50 51 typedef struct i386_mca_chipse *mca_chipset_tag_t; 52 typedef int mca_intr_handle_t; 53 54 /* 55 * Functions provided to machine-independent MCA code. 56 */ 57 struct mcabus_attach_args; 58 59 void mca_attach_hook(struct device *, struct device *, 60 struct mcabus_attach_args *); 61 const struct evcnt *mca_intr_evcnt(mca_chipset_tag_t, mca_intr_handle_t); 62 void *mca_intr_establish(mca_chipset_tag_t, mca_intr_handle_t, 63 int, int (*)(void *), void *); 64 void mca_intr_disestablish(mca_chipset_tag_t, void *); 65 int mca_conf_read(mca_chipset_tag_t, int, int); 66 void mca_conf_write(mca_chipset_tag_t, int, int, int); 67 void mca_busprobe(void); 68 69 /* 70 * These two are used to light disk busy LED on PS/2 during disk operations. 71 */ 72 void mca_disk_busy(void); 73 void mca_disk_unbusy(void); 74 75 /* MCA register addresses for IBM PS/2 */ 76 77 #define PS2_SYS_CTL_A 0x92 /* PS/2 System Control Port A */ 78 #define MCA_MB_SETUP_REG 0x94 /* Motherboard setup register */ 79 #define MCA_ADAP_SETUP_REG 0x96 /* Adapter setup register */ 80 #define MCA_POS_REG_BASE 0x100 /* POS registers base address */ 81 #define MCA_POS_REG_SIZE 8 /* POS registers window size */ 82 83 #define MCA_POS_REG(n) (0x100+(n)) /* POS registers 0-7 */ 84 85 /* Adapter setup register bits */ 86 87 #define MCA_ADAP_SET 0x08 /* Adapter setup mode */ 88 #define MCA_ADAP_CHR 0x80 /* Adapter channel reset */ 89 90 #endif /* _I386_MCA_MACHDEP_H_ */ 91