puccn.c revision 1.1.2.3
1 1.1.2.3 bouyer /* $NetBSD: puccn.c,v 1.1.2.3 2000/12/13 15:50:10 bouyer Exp $ */ 2 1.1.2.2 bouyer 3 1.1.2.2 bouyer /* 4 1.1.2.2 bouyer * Derived from pci.c 5 1.1.2.2 bouyer * Copyright (c) 2000 Geocast Networks Systems. All rights reserved. 6 1.1.2.2 bouyer * 7 1.1.2.2 bouyer * Copyright (c) 1995, 1996, 1997, 1998 8 1.1.2.2 bouyer * Christopher G. Demetriou. All rights reserved. 9 1.1.2.2 bouyer * Copyright (c) 1994 Charles M. Hannum. All rights reserved. 10 1.1.2.2 bouyer * 11 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 12 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 13 1.1.2.2 bouyer * are met: 14 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 15 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 16 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 17 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 18 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 19 1.1.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 20 1.1.2.2 bouyer * must display the following acknowledgement: 21 1.1.2.2 bouyer * This product includes software developed by Charles M. Hannum. 22 1.1.2.2 bouyer * 4. The name of the author may not be used to endorse or promote products 23 1.1.2.2 bouyer * derived from this software without specific prior written permission. 24 1.1.2.2 bouyer * 25 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 26 1.1.2.2 bouyer * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 27 1.1.2.2 bouyer * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 28 1.1.2.2 bouyer * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 29 1.1.2.2 bouyer * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 30 1.1.2.2 bouyer * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31 1.1.2.2 bouyer * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32 1.1.2.2 bouyer * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33 1.1.2.2 bouyer * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 1.1.2.2 bouyer * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35 1.1.2.2 bouyer */ 36 1.1.2.2 bouyer 37 1.1.2.2 bouyer 38 1.1.2.2 bouyer /* 39 1.1.2.2 bouyer * Machine independent support for PCI serial console support. 40 1.1.2.2 bouyer * 41 1.1.2.2 bouyer * Scan the PCI bus for something which resembles a 16550 42 1.1.2.2 bouyer */ 43 1.1.2.2 bouyer 44 1.1.2.2 bouyer #include <sys/param.h> 45 1.1.2.2 bouyer #include <sys/systm.h> 46 1.1.2.2 bouyer #include <sys/conf.h> 47 1.1.2.2 bouyer #include <sys/device.h> 48 1.1.2.2 bouyer 49 1.1.2.2 bouyer #include <dev/pci/pcireg.h> 50 1.1.2.2 bouyer #include <dev/pci/pcivar.h> 51 1.1.2.2 bouyer #include <dev/pci/pcidevs.h> 52 1.1.2.2 bouyer 53 1.1.2.2 bouyer #include <sys/termios.h> 54 1.1.2.2 bouyer #include <dev/ic/comreg.h> 55 1.1.2.2 bouyer #include <dev/ic/comvar.h> 56 1.1.2.2 bouyer 57 1.1.2.2 bouyer #include <dev/cons.h> 58 1.1.2.2 bouyer 59 1.1.2.2 bouyer #include <dev/pci/pucvar.h> 60 1.1.2.2 bouyer #include <dev/pci/puccn.h> 61 1.1.2.2 bouyer 62 1.1.2.2 bouyer #ifndef CONSPEED 63 1.1.2.2 bouyer #define CONSPEED TTYDEF_SPEED 64 1.1.2.2 bouyer #endif 65 1.1.2.2 bouyer #ifndef CONMODE 66 1.1.2.2 bouyer #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE|CSTOPB|PARENB))|CS8) /* 8N1 */ 67 1.1.2.2 bouyer #endif 68 1.1.2.2 bouyer 69 1.1.2.2 bouyer #ifdef i386 /* Handle i386 directly */ 70 1.1.2.2 bouyer int 71 1.1.2.2 bouyer cpu_comcnprobe(struct consdev *cn, struct pci_attach_args *pa) 72 1.1.2.2 bouyer { 73 1.1.2.2 bouyer pci_mode_detect(); 74 1.1.2.2 bouyer pa->pa_iot = I386_BUS_SPACE_IO; 75 1.1.2.2 bouyer pa->pa_pc = 0; 76 1.1.2.2 bouyer pa->pa_tag = pci_make_tag(0, 0, 31, 0); 77 1.1.2.2 bouyer return 0; 78 1.1.2.2 bouyer } 79 1.1.2.2 bouyer #endif 80 1.1.2.2 bouyer 81 1.1.2.2 bouyer cons_decl(com); 82 1.1.2.2 bouyer 83 1.1.2.2 bouyer static bus_addr_t puccnbase; 84 1.1.2.2 bouyer static bus_space_tag_t puctag; 85 1.1.2.2 bouyer 86 1.1.2.2 bouyer #ifdef KGDB 87 1.1.2.2 bouyer static bus_addr_t pucgdbbase; 88 1.1.2.2 bouyer #endif 89 1.1.2.2 bouyer 90 1.1.2.2 bouyer /* 91 1.1.2.2 bouyer * Static dev/func variables allow pucprobe to be called multiple times, 92 1.1.2.2 bouyer * resuming the search where it left off, never retrying the same adaptor. 93 1.1.2.2 bouyer */ 94 1.1.2.2 bouyer 95 1.1.2.2 bouyer static bus_addr_t 96 1.1.2.2 bouyer pucprobe_doit(struct consdev *cn) 97 1.1.2.2 bouyer { 98 1.1.2.2 bouyer struct pci_attach_args pa; 99 1.1.2.2 bouyer int bus; 100 1.1.2.2 bouyer static int dev = 0, func = 0; 101 1.1.2.2 bouyer int maxdev, nfunctions, i; 102 1.1.2.2 bouyer pcireg_t reg, bhlcr, subsys; 103 1.1.2.2 bouyer int foundport = 0; 104 1.1.2.2 bouyer const struct puc_device_description *desc; 105 1.1.2.2 bouyer pcireg_t base; 106 1.1.2.2 bouyer 107 1.1.2.2 bouyer /* Fetch our tags */ 108 1.1.2.2 bouyer if (cpu_comcnprobe(cn, &pa) != 0) { 109 1.1.2.2 bouyer return 0; 110 1.1.2.2 bouyer } 111 1.1.2.2 bouyer puctag = pa.pa_iot; 112 1.1.2.2 bouyer pci_decompose_tag(pa.pa_pc, pa.pa_tag, &bus, &maxdev, NULL); 113 1.1.2.2 bouyer 114 1.1.2.2 bouyer /* scan through devices */ 115 1.1.2.2 bouyer 116 1.1.2.2 bouyer for (; dev <= maxdev ; dev++) { 117 1.1.2.2 bouyer pa.pa_tag = pci_make_tag(pa.pa_pc, bus, dev, 0); 118 1.1.2.2 bouyer reg = pci_conf_read(pa.pa_pc, pa.pa_tag, PCI_ID_REG); 119 1.1.2.2 bouyer if (PCI_VENDOR(reg) == PCI_VENDOR_INVALID 120 1.1.2.2 bouyer || PCI_VENDOR(reg) == 0) 121 1.1.2.2 bouyer continue; 122 1.1.2.2 bouyer bhlcr = pci_conf_read(pa.pa_pc, pa.pa_tag, PCI_BHLC_REG); 123 1.1.2.2 bouyer if (PCI_HDRTYPE_MULTIFN(bhlcr)) { 124 1.1.2.2 bouyer nfunctions = 8; 125 1.1.2.2 bouyer } else { 126 1.1.2.2 bouyer nfunctions = 1; 127 1.1.2.2 bouyer } 128 1.1.2.2 bouyer resume_scan: 129 1.1.2.2 bouyer for (; func < nfunctions; func++) { 130 1.1.2.2 bouyer pa.pa_tag = pci_make_tag(pa.pa_pc, bus, dev, func); 131 1.1.2.2 bouyer reg = pci_conf_read(pa.pa_pc, pa.pa_tag, PCI_CLASS_REG); 132 1.1.2.2 bouyer if (PCI_CLASS(reg) == PCI_CLASS_COMMUNICATIONS 133 1.1.2.2 bouyer && PCI_SUBCLASS(reg) 134 1.1.2.2 bouyer == PCI_SUBCLASS_COMMUNICATIONS_SERIAL) { 135 1.1.2.2 bouyer pa.pa_id = pci_conf_read(pa.pa_pc, pa.pa_tag, PCI_ID_REG); 136 1.1.2.2 bouyer subsys = pci_conf_read(pa.pa_pc, pa.pa_tag, 137 1.1.2.2 bouyer PCI_SUBSYS_ID_REG); 138 1.1.2.2 bouyer foundport = 1; 139 1.1.2.2 bouyer break; 140 1.1.2.2 bouyer } 141 1.1.2.2 bouyer } 142 1.1.2.2 bouyer if (foundport) 143 1.1.2.2 bouyer break; 144 1.1.2.2 bouyer 145 1.1.2.2 bouyer func = 0; 146 1.1.2.2 bouyer } 147 1.1.2.2 bouyer if (!foundport) 148 1.1.2.2 bouyer return 0; 149 1.1.2.2 bouyer foundport = 0; 150 1.1.2.2 bouyer 151 1.1.2.2 bouyer desc = puc_find_description(PCI_VENDOR(pa.pa_id), 152 1.1.2.2 bouyer PCI_PRODUCT(pa.pa_id), PCI_VENDOR(subsys), PCI_PRODUCT(subsys)); 153 1.1.2.2 bouyer if (desc == NULL) { 154 1.1.2.2 bouyer func++; 155 1.1.2.2 bouyer goto resume_scan; 156 1.1.2.2 bouyer } 157 1.1.2.2 bouyer 158 1.1.2.2 bouyer for (i = 0; PUC_PORT_VALID(desc, i); i++) 159 1.1.2.2 bouyer { 160 1.1.2.2 bouyer if (desc->ports[i].type != PUC_PORT_TYPE_COM) 161 1.1.2.2 bouyer continue; 162 1.1.2.2 bouyer base = pci_conf_read(pa.pa_pc, pa.pa_tag, desc->ports[i].bar); 163 1.1.2.2 bouyer base += desc->ports[i].offset; 164 1.1.2.2 bouyer 165 1.1.2.2 bouyer if (PCI_MAPREG_TYPE(base) != PCI_MAPREG_TYPE_IO) 166 1.1.2.2 bouyer continue; 167 1.1.2.2 bouyer base = PCI_MAPREG_IO_ADDR(base); 168 1.1.2.2 bouyer if (com_is_console(puctag, base, NULL)) 169 1.1.2.2 bouyer continue; 170 1.1.2.2 bouyer foundport = 1; 171 1.1.2.2 bouyer break; 172 1.1.2.2 bouyer } 173 1.1.2.2 bouyer 174 1.1.2.2 bouyer if (foundport == 0) { 175 1.1.2.2 bouyer func++; 176 1.1.2.2 bouyer goto resume_scan; 177 1.1.2.2 bouyer } 178 1.1.2.2 bouyer 179 1.1.2.2 bouyer cn->cn_pri = CN_REMOTE; 180 1.1.2.2 bouyer return PCI_MAPREG_IO_ADDR(base); 181 1.1.2.2 bouyer } 182 1.1.2.2 bouyer 183 1.1.2.2 bouyer #ifdef KGDB 184 1.1.2.2 bouyer void comgdbprobe(struct consdev *); 185 1.1.2.2 bouyer void comgdbinit(struct consdev *); 186 1.1.2.2 bouyer 187 1.1.2.2 bouyer void 188 1.1.2.2 bouyer comgdbprobe(struct consdev *cn) 189 1.1.2.2 bouyer { 190 1.1.2.2 bouyer pucgdbbase = pucprobe_doit(cn); 191 1.1.2.2 bouyer } 192 1.1.2.2 bouyer 193 1.1.2.2 bouyer void 194 1.1.2.2 bouyer comgdbinit(struct consdev *cn) 195 1.1.2.2 bouyer { 196 1.1.2.2 bouyer if (pucgdbbase == 0) { 197 1.1.2.2 bouyer return; 198 1.1.2.2 bouyer } 199 1.1.2.2 bouyer com_kgdb_attach(puctag, pucgdbbase, CONSPEED, COM_FREQ, CONMODE); 200 1.1.2.2 bouyer } 201 1.1.2.2 bouyer #endif 202 1.1.2.2 bouyer 203 1.1.2.2 bouyer void 204 1.1.2.2 bouyer comcnprobe(struct consdev *cn) 205 1.1.2.2 bouyer { 206 1.1.2.2 bouyer puccnbase = pucprobe_doit(cn); 207 1.1.2.2 bouyer } 208 1.1.2.2 bouyer 209 1.1.2.2 bouyer void 210 1.1.2.2 bouyer comcninit(struct consdev *cn) 211 1.1.2.2 bouyer { 212 1.1.2.2 bouyer if (puccnbase == 0) { 213 1.1.2.2 bouyer return; 214 1.1.2.2 bouyer } 215 1.1.2.2 bouyer comcnattach(puctag, puccnbase, CONSPEED, COM_FREQ, CONMODE); 216 1.1.2.2 bouyer } 217 1.1.2.2 bouyer 218 1.1.2.2 bouyer /* comcngetc, comcnputc, comcnpollc provided by dev/ic/com.c */ 219
Indexes created Sat Nov 01 19:09:55 GMT 2025