1 /* $NetBSD: netslot.c,v 1.10 2012/05/10 10:27:10 skrll 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, "$NetBSD: netslot.c,v 1.10 2012/05/10 10:27:10 skrll 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 <arm/iomd/iomdreg.h> 51 #include <arm/iomd/iomdvar.h> 52 #include <dev/podulebus/podulebus.h> 53 #include <dev/podulebus/podules.h> 54 55 u_int netslotread(u_int, int); 56 57 u_int 58 netslotread(u_int address, int offset) 59 { 60 static int netslotoffset = -1; 61 62 offset = offset >> 2; 63 if (netslotoffset == -1 || offset < netslotoffset) { 64 WriteByte(address, 0); 65 netslotoffset = 0; 66 } 67 while (netslotoffset < offset) { 68 (void)ReadByte(address); 69 ++netslotoffset; 70 } 71 ++netslotoffset; 72 return(ReadByte(address)); 73 } 74 75 void 76 netslotscan(device_t dev) 77 { 78 podule_t *podule; 79 volatile u_char *address; 80 81 /* Only one netslot atm */ 82 83 /* Reset the address counter */ 84 85 WriteByte(NETSLOT_BASE, 0x00); 86 87 address = (u_char *)NETSLOT_BASE; 88 89 podule = &podules[MAX_PODULES]; 90 91 podule->fast_base = NETSLOT_BASE; 92 podule->medium_base = NETSLOT_BASE; 93 podule->slow_base = NETSLOT_BASE; 94 podule->sync_base = NETSLOT_BASE; 95 podule->mod_base = NETSLOT_BASE; 96 podule->easi_base = 0; 97 podule->attached = 0; 98 podule->slottype = SLOT_NONE; 99 podule->podulenum = MAX_PODULES; 100 podule->interrupt = IRQ_NETSLOT; 101 podule->read_rom = netslotread; 102 podule->dma_channel = -1; 103 podule->dma_interrupt = -1; 104 podule->description[0] = 0; 105 106 /* XXX - Really needs to be linked to a DMA manager */ 107 if (IOMD_ID == RPC600_IOMD_ID) 108 podule->dma_channel = 0; 109 110 /* Get information from the podule header */ 111 112 podule->flags0 = *address; 113 podule->flags1 = *address; 114 podule->reserved = *address; 115 podule->product = *address; 116 podule->product += (*address << 8); 117 podule->manufacturer = *address; 118 podule->manufacturer += (*address << 8); 119 podule->country = *address; 120 if (podule->flags1 & PODULE_FLAGS_IS) { 121 podule->irq_mask = *address; 122 podule->irq_addr = *address; 123 podule->irq_addr += (*address << 8); 124 podule->irq_addr += (*address << 16); 125 podule->irq_addr += podule->slow_base; 126 if (podule->irq_mask == 0) 127 podule->irq_mask = 0x01; 128 podule->fiq_mask = *address; 129 podule->fiq_addr = *address; 130 podule->fiq_addr += (*address << 8); 131 podule->fiq_addr += (*address << 16); 132 podule->fiq_addr += podule->slow_base; 133 if (podule->fiq_mask == 0) 134 podule->fiq_mask = 0x04; 135 } else { 136 podule->irq_addr = podule->slow_base; 137 podule->irq_mask = 0x01; 138 podule->fiq_addr = podule->slow_base; 139 podule->fiq_mask = 0x04; 140 } 141 142 poduleexamine(podule, dev, SLOT_NET); 143 } 144 145 void 146 netslot_ea(uint8_t *buffer) 147 { 148 /* Build station address from machine ID */ 149 buffer[0] = 0x00; 150 buffer[1] = 0x00; 151 buffer[2] = 0xa4; 152 buffer[3] = bootconfig.machine_id[2] + 0x10; 153 buffer[4] = bootconfig.machine_id[1]; 154 buffer[5] = bootconfig.machine_id[0]; 155 } 156