1 /* $NetBSD: mca_machdep.h,v 1.1 2007/12/17 19:09:26 garbled Exp $ */ 2 3 /* 4 * Copyright (c) 2000, 2001 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 _RS6000_MCA_MACHDEP_H_ 31 #define _RS6000_MCA_MACHDEP_H_ 32 33 #define _POWERPC_BUS_DMA_PRIVATE 34 #include <machine/bus.h> 35 #include <machine/iocc.h> 36 37 /* 38 * rs6000-specific definitions for MCA autoconfiguration. 39 */ 40 41 extern struct powerpc_bus_dma_tag mca_bus_dma_tag; 42 43 /* set to 1 if MCA bus is detected */ 44 extern int MCA_system; 45 46 int mca_nmi(void); 47 48 /* 49 * Types provided to machine-independent MCA code. 50 */ 51 struct x86_mca_chipset { 52 void * /*struct mca_dma_state*/ ic_dmastate; 53 }; 54 55 typedef struct x86_mca_chipset *mca_chipset_tag_t; 56 typedef int mca_intr_handle_t; 57 58 /* 59 * Functions provided to machine-independent MCA code. 60 */ 61 struct mcabus_attach_args; 62 63 void mca_attach_hook(struct device *, struct device *, 64 struct mcabus_attach_args *); 65 int mca_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_dmamap_t *, int); 66 void mca_dma_set_ioport(int dma, uint16_t port); 67 const struct evcnt *mca_intr_evcnt(mca_chipset_tag_t, mca_intr_handle_t); 68 void *mca_intr_establish(mca_chipset_tag_t, mca_intr_handle_t, 69 int, int (*)(void *), void *); 70 void mca_intr_disestablish(mca_chipset_tag_t, void *); 71 int mca_conf_read(mca_chipset_tag_t, int, int); 72 void mca_conf_write(mca_chipset_tag_t, int, int, int); 73 void mca_busprobe(void); 74 75 /* 76 * Flags for DMA. Avoid BUS_DMA_BUS1, we share dmamap routines with ISA and 77 * that flag is used for different purpose within _isa_dmamap_*(). 78 */ 79 #define MCABUS_DMA_IOPORT BUS_DMA_BUS2 /* io-port based DMA */ 80 #define MCABUS_DMA_16BIT BUS_DMA_BUS3 /* 16bit DMA */ 81 #define _MCABUS_DMA_USEDMACTRL BUS_DMA_BUS4 /* internal flag */ 82 83 /* 84 * These two are used to light disk busy LED on PS/2 during disk operations. 85 */ 86 void mca_disk_busy(void); 87 void mca_disk_unbusy(void); 88 89 /* MCA register addresses for PPC */ 90 91 #define PS2_SYS_CTL_A 0x92 /* PS/2 System Control Port A */ 92 #define MCA_MB_SETUP_REG 0x94 /* Motherboard setup register */ 93 #define MCA_ADAP_SETUP_REG 0x96 /* Adapter setup register */ 94 #define MCA_POS_REG_BASE (IOCC_POSBASE + 0x100) 95 /* POS registers base address */ 96 #define MCA_POS_REG_SIZE 8 /* POS registers window size */ 97 98 #define MCA_POS_REG(n) (IOCC_POSBASE + 0x100+(n)) 99 /* POS registers 0-7 */ 100 101 /* Adapter setup register bits */ 102 103 #define MCA_ADAP_SET 0x08 /* Adapter setup mode */ 104 #define MCA_ADAP_CHR 0x80 /* Adapter channel reset */ 105 106 #define MCA_MAX_SLOTS 16 /* max number of slots per bus */ 107 #endif /* _RS6000_MCA_MACHDEP_H_ */ 108