pckbc_ebus.c revision 1.1.2.2
1 /* $NetBSD: pckbc_ebus.c,v 1.1.2.2 2012/10/30 17:20:24 yamt Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Valeriy E. Ushakov 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __KERNEL_RCSID(0, "$NetBSD: pckbc_ebus.c,v 1.1.2.2 2012/10/30 17:20:24 yamt Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/device.h> 37 #include <sys/malloc.h> 38 #include <sys/bus.h> 39 #include <sys/intr.h> 40 41 #include <machine/autoconf.h> 42 43 #include <dev/ic/i8042reg.h> 44 #include <dev/ic/pckbcvar.h> 45 #include <dev/pckbport/pckbportvar.h> 46 47 #include <dev/ebus/ebusreg.h> 48 #include <dev/ebus/ebusvar.h> 49 50 struct pckbc_ebus_softc { 51 struct pckbc_softc psc_pckbc; /* real "pckbc" softc */ 52 uint32_t psc_intr[PCKBC_NSLOTS]; 53 }; 54 55 static int pckbc_ebus_match(device_t, cfdata_t, void *); 56 static void pckbc_ebus_attach(device_t, device_t, void *); 57 58 static void pckbc_ebus_intr_establish(struct pckbc_softc *, pckbport_slot_t); 59 60 #define PCKBC_PROM_DEVICE_NAME "8042" 61 62 CFATTACH_DECL_NEW(pckbc_ebus, sizeof(struct pckbc_ebus_softc), 63 pckbc_ebus_match, pckbc_ebus_attach, NULL, NULL); 64 65 66 static int 67 pckbc_ebus_match(device_t parent, cfdata_t cf, void *aux) 68 { 69 struct ebus_attach_args *ea = aux; 70 71 return (strcmp(ea->ea_name, PCKBC_PROM_DEVICE_NAME) == 0); 72 } 73 74 static void 75 pckbc_ebus_attach(device_t parent, device_t self, void *aux) 76 { 77 struct pckbc_ebus_softc *sc = device_private(self); 78 struct pckbc_softc *psc = (struct pckbc_softc *) sc; 79 struct ebus_attach_args *ea = aux; 80 struct pckbc_internal *t; 81 bus_space_tag_t iot; 82 bus_addr_t ioaddr; 83 int stdin_node, node; 84 int isconsole, i; 85 86 psc->sc_dv = self; 87 iot = ea->ea_bustag; 88 ioaddr = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]); 89 90 stdin_node = prom_instance_to_package(prom_stdin()); 91 isconsole = 0; 92 for (node = prom_firstchild(ea->ea_node); 93 node != 0; node = prom_nextsibling(node)) 94 if (node == stdin_node) { 95 isconsole = 1; 96 break; 97 } 98 99 psc->intr_establish = pckbc_ebus_intr_establish; 100 101 for (i = 0; i < PCKBC_NSLOTS; i++) 102 sc->psc_intr[i] = ea->ea_intr[i]; 103 104 if (isconsole) { 105 int status; 106 107 status = pckbc_cnattach(iot, ioaddr, KBCMDP, 0, 108 PCKBC_NEED_AUXWRITE | PCKBC_CANT_TRANSLATE); 109 if (status == 0) 110 aprint_normal(": cnattach ok"); 111 else 112 aprint_error(": cnattach %d", status); 113 } 114 115 if (pckbc_is_console(iot, ioaddr)) { 116 t = &pckbc_consdata; 117 pckbc_console_attached = 1; 118 } else { 119 bus_space_handle_t ioh_d, ioh_c; 120 121 if (bus_space_map(iot, ioaddr + KBDATAP, 1, 0, &ioh_d) != 0) { 122 aprint_error(": unable to map data register\n"); 123 return; 124 } 125 126 if (bus_space_map(iot, ioaddr + KBCMDP, 1, 0, &ioh_c) != 0) { 127 bus_space_unmap(iot, ioh_d, 1); 128 aprint_error(": unable to map cmd register\n"); 129 return; 130 } 131 132 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK); 133 memset(t, 0, sizeof(struct pckbc_internal)); 134 t->t_iot = iot; 135 t->t_ioh_d = ioh_d; 136 t->t_ioh_c = ioh_c; 137 t->t_addr = ioaddr; 138 t->t_cmdbyte = KC8_CPU; /* initial command: enable ports */ 139 callout_init(&t->t_cleanup, 0); 140 141 (void) pckbc_poll_data1(t, PCKBC_KBD_SLOT); /* flush */ 142 143 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) 144 aprint_error(": unable to request self test"); 145 else { 146 int response; 147 148 response = pckbc_poll_data1(t, PCKBC_KBD_SLOT); 149 if (response == 0x55) 150 aprint_normal(": selftest ok"); 151 else 152 aprint_error(": selftest failed (0x%02x)", 153 response); 154 } 155 } 156 157 /* crosslink */ 158 t->t_sc = psc; 159 psc->id = t; 160 161 /* finish off the attach */ 162 aprint_normal("\n"); 163 pckbc_attach(psc); 164 } 165 166 167 static void 168 pckbc_ebus_intr_establish(struct pckbc_softc *sc, pckbport_slot_t slot) 169 { 170 struct pckbc_ebus_softc *psc = (struct pckbc_ebus_softc *)sc; 171 void *res; 172 173 /* We assume that interrupt order is the same as slot order. */ 174 res = bus_intr_establish(sc->id->t_iot, psc->psc_intr[slot], 175 IPL_TTY, pckbcintr, sc); 176 if (res == NULL) 177 aprint_error_dev(sc->sc_dv, 178 "unable to establish %s slot interrupt\n", 179 pckbc_slot_names[slot]); 180 181 return; 182 } 183
Indexes created Thu Oct 30 16:09:53 GMT 2025