pq3duart.c revision 1.2.4.2
1 1.2.4.2 rmind /* $NetBSD: pq3duart.c,v 1.2.4.2 2011/03/05 20:51:34 rmind Exp $ */ 2 1.2.4.2 rmind /*- 3 1.2.4.2 rmind * Copyright (c) 2010, 2011 The NetBSD Foundation, Inc. 4 1.2.4.2 rmind * All rights reserved. 5 1.2.4.2 rmind * 6 1.2.4.2 rmind * This code is derived from software contributed to The NetBSD Foundation 7 1.2.4.2 rmind * by Raytheon BBN Technologies Corp and Defense Advanced Research Projects 8 1.2.4.2 rmind * Agency and which was developed by Matt Thomas of 3am Software Foundry. 9 1.2.4.2 rmind * 10 1.2.4.2 rmind * This material is based upon work supported by the Defense Advanced Research 11 1.2.4.2 rmind * Projects Agency and Space and Naval Warfare Systems Center, Pacific, under 12 1.2.4.2 rmind * Contract No. N66001-09-C-2073. 13 1.2.4.2 rmind * Approved for Public Release, Distribution Unlimited 14 1.2.4.2 rmind * 15 1.2.4.2 rmind * Redistribution and use in source and binary forms, with or without 16 1.2.4.2 rmind * modification, are permitted provided that the following conditions 17 1.2.4.2 rmind * are met: 18 1.2.4.2 rmind * 1. Redistributions of source code must retain the above copyright 19 1.2.4.2 rmind * notice, this list of conditions and the following disclaimer. 20 1.2.4.2 rmind * 2. Redistributions in binary form must reproduce the above copyright 21 1.2.4.2 rmind * notice, this list of conditions and the following disclaimer in the 22 1.2.4.2 rmind * documentation and/or other materials provided with the distribution. 23 1.2.4.2 rmind * 24 1.2.4.2 rmind * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 25 1.2.4.2 rmind * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 26 1.2.4.2 rmind * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 27 1.2.4.2 rmind * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 28 1.2.4.2 rmind * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 1.2.4.2 rmind * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 1.2.4.2 rmind * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 31 1.2.4.2 rmind * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 32 1.2.4.2 rmind * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 33 1.2.4.2 rmind * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 1.2.4.2 rmind * POSSIBILITY OF SUCH DAMAGE. 35 1.2.4.2 rmind */ 36 1.2.4.2 rmind 37 1.2.4.2 rmind #include <sys/cdefs.h> 38 1.2.4.2 rmind 39 1.2.4.2 rmind #include <sys/param.h> 40 1.2.4.2 rmind #include <sys/cpu.h> 41 1.2.4.2 rmind #include <sys/device.h> 42 1.2.4.2 rmind #include <sys/tty.h> 43 1.2.4.2 rmind 44 1.2.4.2 rmind #include "ioconf.h" 45 1.2.4.2 rmind 46 1.2.4.2 rmind #include <sys/intr.h> 47 1.2.4.2 rmind #include <sys/bus.h> 48 1.2.4.2 rmind 49 1.2.4.2 rmind #include <dev/ic/comreg.h> 50 1.2.4.2 rmind #include <dev/ic/comvar.h> 51 1.2.4.2 rmind 52 1.2.4.2 rmind #include <powerpc/booke/cpuvar.h> 53 1.2.4.2 rmind #include <powerpc/booke/e500var.h> 54 1.2.4.2 rmind #include <powerpc/booke/e500reg.h> 55 1.2.4.2 rmind 56 1.2.4.2 rmind struct pq3duart_softc { 57 1.2.4.2 rmind device_t dsc_dev; 58 1.2.4.2 rmind struct com_softc *dsc_sc[2]; 59 1.2.4.2 rmind bus_space_tag_t dsc_memt; 60 1.2.4.2 rmind bus_addr_t dsc_base; 61 1.2.4.2 rmind void *dsc_ih; 62 1.2.4.2 rmind }; 63 1.2.4.2 rmind 64 1.2.4.2 rmind struct pq3duart_attach_args { 65 1.2.4.2 rmind const char *da_busname; 66 1.2.4.2 rmind bus_space_tag_t da_memt; 67 1.2.4.2 rmind bus_addr_t da_addr; 68 1.2.4.2 rmind bus_addr_t da_size; 69 1.2.4.2 rmind u_int da_port; 70 1.2.4.2 rmind }; 71 1.2.4.2 rmind 72 1.2.4.2 rmind static int pq3duart_match(device_t, cfdata_t, void *); 73 1.2.4.2 rmind static void pq3duart_attach(device_t, device_t, void *); 74 1.2.4.2 rmind static int com_pq3duart_match(device_t, cfdata_t, void *); 75 1.2.4.2 rmind static void com_pq3duart_attach(device_t, device_t, void *); 76 1.2.4.2 rmind 77 1.2.4.2 rmind CFATTACH_DECL_NEW(pq3duart, sizeof(struct pq3duart_softc), 78 1.2.4.2 rmind pq3duart_match, pq3duart_attach, NULL, NULL); 79 1.2.4.2 rmind 80 1.2.4.2 rmind CFATTACH_DECL_NEW(com_pq3duart, sizeof(struct com_softc), 81 1.2.4.2 rmind com_pq3duart_match, com_pq3duart_attach, NULL, NULL); 82 1.2.4.2 rmind 83 1.2.4.2 rmind static int 84 1.2.4.2 rmind pq3duart_match(device_t parent, cfdata_t cf, void *aux) 85 1.2.4.2 rmind { 86 1.2.4.2 rmind 87 1.2.4.2 rmind if (!e500_cpunode_submatch(parent, cf, cf->cf_name, aux)) 88 1.2.4.2 rmind return 0; 89 1.2.4.2 rmind 90 1.2.4.2 rmind return 1; 91 1.2.4.2 rmind } 92 1.2.4.2 rmind 93 1.2.4.2 rmind static int 94 1.2.4.2 rmind com_pq3duart_match(device_t parent, cfdata_t cfdata, void *aux) 95 1.2.4.2 rmind { 96 1.2.4.2 rmind struct pq3duart_softc * const dsc = device_private(parent); 97 1.2.4.2 rmind struct pq3duart_attach_args * const da = aux; 98 1.2.4.2 rmind struct com_regs regs; 99 1.2.4.2 rmind 100 1.2.4.2 rmind if ((da->da_port != 1 && da->da_port != 2) 101 1.2.4.2 rmind || dsc->dsc_sc[da->da_port-1] != NULL) 102 1.2.4.2 rmind return 0; 103 1.2.4.2 rmind 104 1.2.4.2 rmind bus_space_tag_t memt = da->da_memt; 105 1.2.4.2 rmind bus_addr_t addr = da->da_addr; 106 1.2.4.2 rmind bus_addr_t size = da->da_size; 107 1.2.4.2 rmind bus_space_handle_t memh; 108 1.2.4.2 rmind 109 1.2.4.2 rmind if (com_is_console(memt, addr, &memh)) 110 1.2.4.2 rmind return 1; 111 1.2.4.2 rmind 112 1.2.4.2 rmind if (bus_space_map(memt, addr, size, 0, &memh)) 113 1.2.4.2 rmind return 0; 114 1.2.4.2 rmind 115 1.2.4.2 rmind COM_INIT_REGS(regs, memt, memh, addr); 116 1.2.4.2 rmind 117 1.2.4.2 rmind int rv = com_probe_subr(®s); 118 1.2.4.2 rmind 119 1.2.4.2 rmind bus_space_unmap(memt, memh, size); 120 1.2.4.2 rmind 121 1.2.4.2 rmind return rv; 122 1.2.4.2 rmind } 123 1.2.4.2 rmind 124 1.2.4.2 rmind static int 125 1.2.4.2 rmind pq3duart_intr(void *arg) 126 1.2.4.2 rmind { 127 1.2.4.2 rmind struct pq3duart_softc * const dsc = arg; 128 1.2.4.2 rmind int rv = 0; 129 1.2.4.2 rmind 130 1.2.4.2 rmind if (dsc->dsc_sc[0] != NULL) 131 1.2.4.2 rmind rv += comintr(dsc->dsc_sc[0]); 132 1.2.4.2 rmind if (dsc->dsc_sc[1] != NULL) 133 1.2.4.2 rmind rv += comintr(dsc->dsc_sc[1]); 134 1.2.4.2 rmind 135 1.2.4.2 rmind return rv; 136 1.2.4.2 rmind } 137 1.2.4.2 rmind 138 1.2.4.2 rmind static int 139 1.2.4.2 rmind pq3duart_print(void *aux, const char *pnp) 140 1.2.4.2 rmind { 141 1.2.4.2 rmind struct pq3duart_attach_args * const da = aux; 142 1.2.4.2 rmind 143 1.2.4.2 rmind if (pnp != NULL) 144 1.2.4.2 rmind return QUIET; 145 1.2.4.2 rmind 146 1.2.4.2 rmind aprint_normal(" port %d", da->da_port); 147 1.2.4.2 rmind 148 1.2.4.2 rmind return UNCONF; 149 1.2.4.2 rmind } 150 1.2.4.2 rmind 151 1.2.4.2 rmind static void 152 1.2.4.2 rmind pq3duart_attach(device_t parent, device_t self, void *aux) 153 1.2.4.2 rmind { 154 1.2.4.2 rmind struct cpunode_softc * const psc = device_private(parent); 155 1.2.4.2 rmind struct pq3duart_softc * const dsc = device_private(self); 156 1.2.4.2 rmind struct cpunode_attach_args * const cna = aux; 157 1.2.4.2 rmind struct cpunode_locators * const cnl = &cna->cna_locs; 158 1.2.4.2 rmind struct pq3duart_attach_args da; 159 1.2.4.2 rmind u_int nports = cnl->cnl_size / DUART_SIZE; 160 1.2.4.2 rmind 161 1.2.4.2 rmind psc->sc_children |= cna->cna_childmask; 162 1.2.4.2 rmind dsc->dsc_dev = self; 163 1.2.4.2 rmind 164 1.2.4.2 rmind aprint_normal(": %u ports\n", nports); 165 1.2.4.2 rmind 166 1.2.4.2 rmind for (u_int port = 1; port <= min(2, nports); port++) { 167 1.2.4.2 rmind da.da_memt = cna->cna_memt; 168 1.2.4.2 rmind da.da_port = port; 169 1.2.4.2 rmind da.da_addr = cnl->cnl_addr + (port - 1) * DUART_SIZE; 170 1.2.4.2 rmind da.da_size = COM_NPORTS; 171 1.2.4.2 rmind (void)config_found_sm_loc(self, "duart", NULL, 172 1.2.4.2 rmind &da, pq3duart_print, NULL); 173 1.2.4.2 rmind } 174 1.2.4.2 rmind 175 1.2.4.2 rmind if (dsc->dsc_sc[0] != NULL || dsc->dsc_sc[1] != NULL) { 176 1.2.4.2 rmind dsc->dsc_ih = intr_establish(cnl->cnl_intrs[0], IPL_SERIAL, 177 1.2.4.2 rmind IST_ONCHIP, pq3duart_intr, dsc); 178 1.2.4.2 rmind if (dsc->dsc_ih == NULL) 179 1.2.4.2 rmind aprint_error_dev(self, 180 1.2.4.2 rmind "failed to establish interrupt %d\n", 181 1.2.4.2 rmind cnl->cnl_intrs[0]); 182 1.2.4.2 rmind else 183 1.2.4.2 rmind aprint_normal_dev(self, 184 1.2.4.2 rmind "interrupting on irq %d\n", 185 1.2.4.2 rmind cnl->cnl_intrs[0]); 186 1.2.4.2 rmind } 187 1.2.4.2 rmind } 188 1.2.4.2 rmind 189 1.2.4.2 rmind static void 190 1.2.4.2 rmind com_pq3duart_attach(device_t parent, device_t self, void *aux) 191 1.2.4.2 rmind { 192 1.2.4.2 rmind struct pq3duart_softc * const dsc = device_private(parent); 193 1.2.4.2 rmind struct com_softc * const sc = device_private(self); 194 1.2.4.2 rmind struct pq3duart_attach_args * const da = aux; 195 1.2.4.2 rmind 196 1.2.4.2 rmind dsc->dsc_sc[da->da_port-1] = sc; 197 1.2.4.2 rmind sc->sc_dev = self; 198 1.2.4.2 rmind sc->sc_frequency = (int) board_info_get_number("bus-frequency"); 199 1.2.4.2 rmind 200 1.2.4.2 rmind bus_space_tag_t memt = da->da_memt; 201 1.2.4.2 rmind bus_addr_t addr = da->da_addr; 202 1.2.4.2 rmind bus_addr_t size = da->da_size; 203 1.2.4.2 rmind bus_space_handle_t memh; 204 1.2.4.2 rmind 205 1.2.4.2 rmind if (!com_is_console(memt, addr, &memh)) { 206 1.2.4.2 rmind int error = bus_space_map(memt, addr, size, 0, &memh); 207 1.2.4.2 rmind if (error) { 208 1.2.4.2 rmind aprint_error(": failed to map registers: %d\n", error); 209 1.2.4.2 rmind return; 210 1.2.4.2 rmind } 211 1.2.4.2 rmind } 212 1.2.4.2 rmind 213 1.2.4.2 rmind COM_INIT_REGS(sc->sc_regs, memt, memh, addr); 214 1.2.4.2 rmind sc->sc_regs.cr_nports = size; 215 1.2.4.2 rmind 216 1.2.4.2 rmind com_attach_subr(sc); 217 1.2.4.2 rmind 218 1.2.4.2 rmind } 219
Indexes created Wed Oct 22 13:09:56 GMT 2025