1 /* $NetBSD: podulebus_machdep.h,v 1.5 2012/05/10 10:27:10 skrll Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Mark Brinicombe. 5 * Copyright (c) 1995 Brini. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Brini. 19 * 4. The name of the company nor the name of the author may be used to 20 * endorse or promote products derived from this software without specific 21 * prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED 24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * RiscBSD kernel project 36 * 37 * podulebus.h 38 * 39 * Podule bus header file 40 * 41 * Created : 26/04/95 42 */ 43 44 #include <sys/param.h> 45 #include <sys/bus.h> 46 #include <machine/io.h> 47 48 /* Define the structure used to describe a podule */ 49 50 #define PODULE_DESCRIPTION_LENGTH 63 51 52 typedef struct { 53 /* The podule header, read from the on board ROM */ 54 55 u_char flags0; 56 u_char flags1; 57 u_char reserved; 58 u_short product; 59 u_short manufacturer; 60 u_char country; 61 u_int irq_addr; 62 u_int irq_mask; 63 u_int fiq_addr; 64 u_int fiq_mask; 65 66 /* The base addresses for this podule */ 67 68 u_int fast_base; 69 u_int medium_base; 70 u_int slow_base; 71 u_int sync_base; 72 u_int mod_base; 73 u_int easi_base; 74 75 /* Flags */ 76 77 int podulenum; 78 int slottype; 79 int attached; 80 81 /* Other info */ 82 83 char description[PODULE_DESCRIPTION_LENGTH + 1]; 84 u_int (*read_rom)(u_int, int); 85 86 /* podule specific information provided by podulebus */ 87 88 int interrupt; 89 90 int dma_channel; 91 int dma_interrupt; 92 } podule_t; 93 94 #define PODULE_FLAGS_CD 0x01 95 #define PODULE_FLAGS_IS 0x02 96 97 #define SLOT_NONE 0x00 98 #define SLOT_POD 0x01 99 #define SLOT_NET 0x02 100 101 typedef int podulebus_intr_handle_t; 102 103 #define podulebus_attach_args podule_attach_args 104 105 struct podule_attach_args { 106 podule_t *pa_podule; /* podule descriptor */ 107 int pa_podule_number; /* podule number */ 108 int pa_slottype; /* podule slot type */ 109 bus_space_tag_t pa_iot; /* bus space tag */ 110 111 #define pa_easi_t pa_iot 112 #define pa_mod_t pa_iot 113 #define pa_fast_t pa_iot 114 #define pa_medium_t pa_iot 115 #define pa_slow_t pa_iot 116 #define pa_sync_t pa_iot 117 118 #define pa_easi_base pa_podule->easi_base 119 #define pa_mod_base pa_podule->mod_base 120 #define pa_fast_base pa_podule->fast_base 121 #define pa_medium_base pa_podule->medium_base 122 #define pa_slow_base pa_podule->slow_base 123 #define pa_sync_base pa_podule->sync_base 124 125 podulebus_intr_handle_t pa_ih; /* interrupt handle */ 126 127 #define pa_manufacturer pa_podule->manufacturer 128 #define pa_product pa_podule->product 129 #define pa_descr pa_podule->description 130 }; 131 132 /* Useful macros */ 133 134 /* EASI space cycle control */ 135 136 137 #define IS_PODULE(pa, man, prod) \ 138 (pa->pa_manufacturer == man && pa->pa_product == prod) 139 140 141 142 #define EASI_CYCLE_TYPE_A 0x00 143 #define EASI_CYCLE_TYPE_C 0x01 144 #define set_easi_cycle_type(podule, type) \ 145 IOMD_WRITE_BYTE(IOMD_ECTCR, (IOMD_READ_BYTE(IOMD_ECTCR) & ~(1 << podule)) | (1 << type)) 146 147 #ifdef _KERNEL 148 149 /* Array of podule structures, one per possible podule */ 150 151 extern podule_t podules[MAX_PODULES + MAX_NETSLOTS]; 152 153 int matchpodule(struct podule_attach_args *pa, 154 int manufacturer, int product, int required_slot); 155 156 void netslot_ea(uint8_t *buffer); 157 158 extern void *podulebus_irq_establish(podulebus_intr_handle_t, int, 159 int (*)(void *), void *, struct evcnt *); 160 extern void podulebus_shift_tag(bus_space_tag_t, u_int, 161 bus_space_tag_t *); 162 163 /* Used internally by the podulebus code */ 164 extern void netslotscan(device_t); 165 extern void poduleexamine(podule_t *, device_t, int); 166 167 #endif 168 169 /* End of podulebus.h */ 170