com_arbus.c revision 1.6
1 /* $Id: com_arbus.c,v 1.6 2008/03/14 15:09:10 cube Exp $ */ 2 /*- 3 * Copyright (c) 2006 Urbana-Champaign Independent Media Center. 4 * Copyright (c) 2006 Garrett D'Amore. 5 * All rights reserved. 6 * 7 * Portions of this code were written by Garrett D'Amore for the 8 * Champaign-Urbana Community Wireless Network Project. 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer in the documentation and/or other materials provided 18 * with the distribution. 19 * 3. All advertising materials mentioning features or use of this 20 * software must display the following acknowledgements: 21 * This product includes software developed by the Urbana-Champaign 22 * Independent Media Center. 23 * This product includes software developed by Garrett D'Amore. 24 * 4. Urbana-Champaign Independent Media Center's name and Garrett 25 * D'Amore's name may not be used to endorse or promote products 26 * derived from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE URBANA-CHAMPAIGN INDEPENDENT 29 * MEDIA CENTER AND GARRETT D'AMORE ``AS IS'' AND ANY EXPRESS OR 30 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 31 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE URBANA-CHAMPAIGN INDEPENDENT 33 * MEDIA CENTER OR GARRETT D'AMORE BE LIABLE FOR ANY DIRECT, INDIRECT, 34 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 35 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 36 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 37 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 38 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 40 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 41 */ 42 43 /*- 44 * Copyright (c) 1998 The NetBSD Foundation, Inc. 45 * All rights reserved. 46 * 47 * This code is derived from software contributed to The NetBSD Foundation 48 * by Charles M. Hannum. 49 * 50 * Redistribution and use in source and binary forms, with or without 51 * modification, are permitted provided that the following conditions 52 * are met: 53 * 1. Redistributions of source code must retain the above copyright 54 * notice, this list of conditions and the following disclaimer. 55 * 2. Redistributions in binary form must reproduce the above copyright 56 * notice, this list of conditions and the following disclaimer in the 57 * documentation and/or other materials provided with the distribution. 58 * 3. All advertising materials mentioning features or use of this software 59 * must display the following acknowledgement: 60 * This product includes software developed by the NetBSD 61 * Foundation, Inc. and its contributors. 62 * 4. Neither the name of The NetBSD Foundation nor the names of its 63 * contributors may be used to endorse or promote products derived 64 * from this software without specific prior written permission. 65 * 66 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 67 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 68 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 69 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 70 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 71 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 72 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 73 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 74 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 75 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 76 * POSSIBILITY OF SUCH DAMAGE. 77 */ 78 79 /*- 80 * Copyright (c) 1991 The Regents of the University of California. 81 * All rights reserved. 82 * 83 * Redistribution and use in source and binary forms, with or without 84 * modification, are permitted provided that the following conditions 85 * are met: 86 * 1. Redistributions of source code must retain the above copyright 87 * notice, this list of conditions and the following disclaimer. 88 * 2. Redistributions in binary form must reproduce the above copyright 89 * notice, this list of conditions and the following disclaimer in the 90 * documentation and/or other materials provided with the distribution. 91 * 3. Neither the name of the University nor the names of its contributors 92 * may be used to endorse or promote products derived from this software 93 * without specific prior written permission. 94 * 95 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 96 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 97 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 98 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 99 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 100 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 101 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 103 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 104 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 105 * SUCH DAMAGE. 106 * 107 * @(#)com.c 7.5 (Berkeley) 5/16/91 108 */ 109 110 #include <sys/cdefs.h> 111 __KERNEL_RCSID(0, "$NetBSD: com_arbus.c,v 1.6 2008/03/14 15:09:10 cube Exp $"); 112 113 #include <sys/param.h> 114 #include <sys/systm.h> 115 #include <sys/device.h> 116 #include <sys/kernel.h> 117 #include <sys/termios.h> 118 #include <sys/ttydefaults.h> 119 #include <sys/types.h> 120 121 #include <machine/bus.h> 122 123 #include <dev/cons.h> 124 #include <dev/ic/comreg.h> 125 #include <dev/ic/comvar.h> 126 127 #include <mips/cpuregs.h> 128 #include <mips/atheros/include/arbusvar.h> 129 #include <mips/atheros/include/ar531xvar.h> 130 131 #include "opt_com.h" 132 133 struct com_arbus_softc { 134 struct com_softc sc_com; 135 }; 136 137 static void com_arbus_initmap(struct com_regs *); 138 //static bus_space_tag_t com_arbus_get_bus_space_tag(void); 139 static int com_arbus_match(device_t, cfdata_t , void *); 140 static void com_arbus_attach(device_t, device_t, void *); 141 142 CFATTACH_DECL_NEW(com_arbus, sizeof(struct com_arbus_softc), 143 com_arbus_match, com_arbus_attach, NULL, NULL); 144 145 #if 0 146 #ifdef TTYDEF_SPEED 147 #define COM_ARBUS_BAUD TTYDEF_SPEED 148 #else 149 #define COM_ARBUS_BAUD 115200 150 #endif 151 #endif 152 153 #ifndef COM_ARBUS_BAUD 154 #define COM_ARBUS_BAUD 115200 155 #endif 156 157 int com_arbus_baud = COM_ARBUS_BAUD; 158 159 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ 160 161 #ifndef COM_REGMAP 162 #error COM_REGMAP not defined! 163 #endif 164 165 int 166 com_arbus_match(device_t parent, cfdata_t cf, void *aux) 167 { 168 struct arbus_attach_args *aa = aux; 169 struct com_regs regs; 170 int rv; 171 172 if (strcmp(aa->aa_name, cf->cf_name) != 0) 173 return 0; 174 175 if (com_is_console(aa->aa_bst, aa->aa_addr, ®s.cr_ioh)) 176 return 1; 177 178 if (bus_space_map(aa->aa_bst, aa->aa_addr, aa->aa_size, 179 0, ®s.cr_ioh)) 180 return 0; 181 182 regs.cr_iot = aa->aa_bst; 183 regs.cr_iobase = aa->aa_addr; 184 regs.cr_nports = aa->aa_size; 185 com_arbus_initmap(®s); 186 187 rv = com_probe_subr(®s); 188 189 bus_space_unmap(aa->aa_bst, regs.cr_ioh, aa->aa_size); 190 191 return rv; 192 } 193 194 void 195 com_arbus_attach(device_t parent, device_t self, void *aux) 196 { 197 struct com_arbus_softc *arsc = device_private(self); 198 struct com_softc *sc = &arsc->sc_com; 199 struct arbus_attach_args *aa = aux; 200 prop_number_t prop; 201 bus_space_handle_t ioh; 202 203 sc->sc_dev = self; 204 205 prop = prop_dictionary_get(device_properties(sc->sc_dev), 206 "frequency"); 207 if (prop == NULL) { 208 aprint_error(": unable to get frequency property\n"); 209 return; 210 } 211 KASSERT(prop_object_type(prop) == PROP_TYPE_NUMBER); 212 213 sc->sc_frequency = (int)prop_number_integer_value(prop); 214 215 if (!com_is_console(aa->aa_bst, aa->aa_addr, &ioh) && 216 bus_space_map(aa->aa_bst, aa->aa_addr, aa->aa_size, 0, 217 &ioh) != 0) { 218 aprint_error(": can't map registers\n"); 219 return; 220 } 221 222 COM_INIT_REGS(sc->sc_regs, aa->aa_bst, ioh, aa->aa_addr); 223 sc->sc_regs.cr_nports = aa->aa_size; 224 com_arbus_initmap(&sc->sc_regs); 225 226 com_attach_subr(sc); 227 228 arbus_intr_establish(aa->aa_cirq, aa->aa_mirq, comintr, sc); 229 } 230 231 void 232 com_arbus_initmap(struct com_regs *regsp) 233 { 234 int i; 235 236 /* rewrite the map to shift for alignment */ 237 for (i = 0; 238 i < (sizeof (regsp->cr_map) / sizeof (regsp->cr_map[0])); i++) { 239 regsp->cr_map[i] = (com_std_map[i] * 4) + 3; 240 } 241 } 242 243 void 244 com_arbus_cnattach(bus_addr_t addr, uint32_t freq) 245 { 246 struct com_regs regs; 247 248 regs.cr_iot = arbus_get_bus_space_tag(); 249 regs.cr_iobase = addr; 250 regs.cr_nports = 0x1000; 251 com_arbus_initmap(®s); 252 253 if (bus_space_map(regs.cr_iot, regs.cr_iobase, regs.cr_nports, 0, 254 ®s.cr_ioh)) 255 return; 256 257 comcnattach1(®s, com_arbus_baud, freq, COM_TYPE_NORMAL, CONMODE); 258 } 259 260
Indexes created Mon Sep 29 21:09:56 GMT 2025