1 /* $NetBSD: netslot.c,v 1.4 2001/11/27 00:53:12 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1994-1996 Mark Brinicombe. 5 * Copyright (c) 1994 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 36 #include <sys/param.h> 37 38 __KERNEL_RCSID(1, "$Id: netslot.c,v 1.4 2001/11/27 00:53:12 thorpej Exp $"); 39 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/conf.h> 43 #include <sys/malloc.h> 44 #include <sys/device.h> 45 #include <uvm/uvm_extern.h> 46 #include <machine/io.h> 47 #include <arm/arm32/katelib.h> 48 #include <machine/intr.h> 49 #include <machine/bootconfig.h> 50 #include <machine/pmap.h> 51 #include <arm/iomd/iomdreg.h> 52 #include <arm/iomd/iomdvar.h> 53 #include <dev/podulebus/podulebus.h> 54 #include <dev/podulebus/podules.h> 55 56 u_int netslotread __P((u_int, int)); 57 58 u_int 59 netslotread(address, offset) 60 u_int address; 61 int offset; 62 { 63 static int netslotoffset = -1; 64 65 offset = offset >> 2; 66 if (netslotoffset == -1 || offset < netslotoffset) { 67 WriteByte(address, 0); 68 netslotoffset = 0; 69 } 70 while (netslotoffset < offset) { 71 (void)ReadByte(address); 72 ++netslotoffset; 73 } 74 ++netslotoffset; 75 return(ReadByte(address)); 76 } 77 78 void 79 netslotscan(dev) 80 struct device *dev; 81 { 82 podule_t *podule; 83 volatile u_char *address; 84 85 /* Only one netslot atm */ 86 87 /* Reset the address counter */ 88 89 WriteByte(NETSLOT_BASE, 0x00); 90 91 address = (u_char *)NETSLOT_BASE; 92 93 podule = &podules[MAX_PODULES]; 94 95 podule->fast_base = NETSLOT_BASE; 96 podule->medium_base = NETSLOT_BASE; 97 podule->slow_base = NETSLOT_BASE; 98 podule->sync_base = NETSLOT_BASE; 99 podule->mod_base = NETSLOT_BASE; 100 podule->easi_base = 0; 101 podule->attached = 0; 102 podule->slottype = SLOT_NONE; 103 podule->podulenum = MAX_PODULES; 104 podule->interrupt = IRQ_NETSLOT; 105 podule->read_rom = netslotread; 106 podule->dma_channel = -1; 107 podule->dma_interrupt = -1; 108 podule->description[0] = 0; 109 110 /* XXX - Really needs to be linked to a DMA manager */ 111 if (IOMD_ID == RPC600_IOMD_ID) 112 podule->dma_channel = 0; 113 114 /* Get information from the podule header */ 115 116 podule->flags0 = *address; 117 podule->flags1 = *address; 118 podule->reserved = *address; 119 podule->product = *address; 120 podule->product += (*address << 8); 121 podule->manufacturer = *address; 122 podule->manufacturer += (*address << 8); 123 podule->country = *address; 124 if (podule->flags1 & PODULE_FLAGS_IS) { 125 podule->irq_mask = *address; 126 podule->irq_addr = *address; 127 podule->irq_addr += (*address << 8); 128 podule->irq_addr += (*address << 16); 129 podule->irq_addr += podule->slow_base; 130 if (podule->irq_mask == 0) 131 podule->irq_mask = 0x01; 132 podule->fiq_mask = *address; 133 podule->fiq_addr = *address; 134 podule->fiq_addr += (*address << 8); 135 podule->fiq_addr += (*address << 16); 136 podule->fiq_addr += podule->slow_base; 137 if (podule->fiq_mask == 0) 138 podule->fiq_mask = 0x04; 139 } else { 140 podule->irq_addr = podule->slow_base; 141 podule->irq_mask = 0x01; 142 podule->fiq_addr = podule->slow_base; 143 podule->fiq_mask = 0x04; 144 } 145 146 poduleexamine(podule, dev, SLOT_NET); 147 } 148 149 void 150 netslot_ea(buffer) 151 u_int8_t *buffer; 152 { 153 /* Build station address from machine ID */ 154 buffer[0] = 0x00; 155 buffer[1] = 0x00; 156 buffer[2] = 0xa4; 157 buffer[3] = bootconfig.machine_id[2] + 0x10; 158 buffer[4] = bootconfig.machine_id[1]; 159 buffer[5] = bootconfig.machine_id[0]; 160 } 161