1 /* $NetBSD: pckbc_isa.c,v 1.4 2001/07/23 21:03:22 jdolecek Exp $ */ 2 3 /* 4 * Copyright (c) 1998 5 * Matthias Drochner. 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the NetBSD Project 18 * by Matthias Drochner. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/proc.h> 38 #include <sys/device.h> 39 #include <sys/malloc.h> 40 #include <sys/errno.h> 41 #include <sys/queue.h> 42 #include <sys/lock.h> 43 44 #include <machine/bus.h> 45 46 #include <dev/isa/isareg.h> 47 #include <dev/isa/isavar.h> 48 49 #include <dev/ic/i8042reg.h> 50 #include <dev/ic/pckbcvar.h> 51 52 int pckbc_isa_match __P((struct device *, struct cfdata *, void *)); 53 void pckbc_isa_attach __P((struct device *, struct device *, void *)); 54 55 struct pckbc_isa_softc { 56 struct pckbc_softc sc_pckbc; 57 58 isa_chipset_tag_t sc_ic; 59 int sc_irq[PCKBC_NSLOTS]; 60 }; 61 62 struct cfattach pckbc_isa_ca = { 63 sizeof(struct pckbc_isa_softc), pckbc_isa_match, pckbc_isa_attach, 64 }; 65 66 void pckbc_isa_intr_establish __P((struct pckbc_softc *, pckbc_slot_t)); 67 68 int 69 pckbc_isa_match(parent, match, aux) 70 struct device *parent; 71 struct cfdata *match; 72 void *aux; 73 { 74 struct isa_attach_args *ia = aux; 75 bus_space_tag_t iot = ia->ia_iot; 76 bus_space_handle_t ioh_d, ioh_c; 77 int res, ok = 1; 78 79 /* If values are hardwired to something that they can't be, punt. */ 80 if ((ia->ia_iobase != IOBASEUNK && ia->ia_iobase != IO_KBD) || 81 ia->ia_maddr != MADDRUNK || 82 (ia->ia_irq != IRQUNK && ia->ia_irq != 1 /* XXX */) || 83 ia->ia_drq != DRQUNK) 84 return (0); 85 86 if (pckbc_is_console(iot, IO_KBD) == 0) { 87 struct pckbc_internal t; 88 89 if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d)) 90 return (0); 91 if (bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c)) { 92 bus_space_unmap(iot, ioh_d, 1); 93 return (0); 94 } 95 96 memset(&t, 0, sizeof(t)); 97 t.t_iot = iot; 98 t.t_ioh_d = ioh_d; 99 t.t_ioh_c = ioh_c; 100 101 /* flush KBC */ 102 (void) pckbc_poll_data1(&t, PCKBC_KBD_SLOT, 0); 103 104 /* KBC selftest */ 105 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) { 106 ok = 0; 107 goto out; 108 } 109 res = pckbc_poll_data1(&t, PCKBC_KBD_SLOT, 0); 110 if (res != 0x55) { 111 printf("kbc selftest: %x\n", res); 112 ok = 0; 113 } 114 out: 115 bus_space_unmap(iot, ioh_d, 1); 116 bus_space_unmap(iot, ioh_c, 1); 117 } 118 119 if (ok) { 120 ia->ia_iobase = IO_KBD; 121 ia->ia_iosize = 5; 122 ia->ia_msize = 0x0; 123 } 124 return (ok); 125 } 126 127 void 128 pckbc_isa_attach(parent, self, aux) 129 struct device *parent, *self; 130 void *aux; 131 { 132 struct pckbc_isa_softc *isc = (void *)self; 133 struct pckbc_softc *sc = &isc->sc_pckbc; 134 struct isa_attach_args *ia = aux; 135 struct pckbc_internal *t; 136 bus_space_tag_t iot; 137 bus_space_handle_t ioh_d, ioh_c; 138 139 isc->sc_ic = ia->ia_ic; 140 iot = ia->ia_iot; 141 142 /* 143 * Set up IRQs for "normal" ISA. 144 * 145 * XXX The "aux" slot is different (9) on the Alpha AXP150 Jensen. 146 */ 147 isc->sc_irq[PCKBC_KBD_SLOT] = 1; 148 isc->sc_irq[PCKBC_AUX_SLOT] = 12; 149 150 sc->intr_establish = pckbc_isa_intr_establish; 151 152 if (pckbc_is_console(iot, IO_KBD)) { 153 t = &pckbc_consdata; 154 ioh_d = t->t_ioh_d; 155 ioh_c = t->t_ioh_c; 156 pckbc_console_attached = 1; 157 /* t->t_cmdbyte was initialized by cnattach */ 158 } else { 159 if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d) || 160 bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c)) 161 panic("pckbc_attach: couldn't map"); 162 163 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK); 164 memset(t, 0, sizeof(struct pckbc_internal)); 165 t->t_iot = iot; 166 t->t_ioh_d = ioh_d; 167 t->t_ioh_c = ioh_c; 168 t->t_addr = IO_KBD; 169 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 170 callout_init(&t->t_cleanup); 171 } 172 173 t->t_sc = sc; 174 sc->id = t; 175 176 printf("\n"); 177 178 /* Finish off the attach. */ 179 pckbc_attach(sc); 180 } 181 182 void 183 pckbc_isa_intr_establish(sc, slot) 184 struct pckbc_softc *sc; 185 pckbc_slot_t slot; 186 { 187 struct pckbc_isa_softc *isc = (void *) sc; 188 void *rv; 189 190 rv = isa_intr_establish(isc->sc_ic, isc->sc_irq[slot], IST_EDGE, 191 IPL_TTY, pckbcintr, sc); 192 if (rv == NULL) { 193 printf("%s: unable to establish interrupt for %s slot\n", 194 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 195 } else { 196 printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname, 197 isc->sc_irq[slot], pckbc_slot_names[slot]); 198 } 199 } 200