1 /* $NetBSD: pckbc_isa.c,v 1.11 2002/10/04 03:40:29 soren 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/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: pckbc_isa.c,v 1.11 2002/10/04 03:40:29 soren Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/proc.h> 41 #include <sys/device.h> 42 #include <sys/malloc.h> 43 #include <sys/errno.h> 44 #include <sys/queue.h> 45 #include <sys/lock.h> 46 47 #include <machine/bus.h> 48 49 #include <dev/isa/isareg.h> 50 #include <dev/isa/isavar.h> 51 52 #include <dev/ic/i8042reg.h> 53 #include <dev/ic/pckbcvar.h> 54 55 int pckbc_isa_match __P((struct device *, struct cfdata *, void *)); 56 void pckbc_isa_attach __P((struct device *, struct device *, void *)); 57 58 struct pckbc_isa_softc { 59 struct pckbc_softc sc_pckbc; 60 61 isa_chipset_tag_t sc_ic; 62 int sc_irq[PCKBC_NSLOTS]; 63 }; 64 65 CFATTACH_DECL(pckbc_isa, sizeof(struct pckbc_isa_softc), 66 pckbc_isa_match, pckbc_isa_attach, NULL, NULL); 67 68 void pckbc_isa_intr_establish __P((struct pckbc_softc *, pckbc_slot_t)); 69 70 int 71 pckbc_isa_match(parent, match, aux) 72 struct device *parent; 73 struct cfdata *match; 74 void *aux; 75 { 76 struct isa_attach_args *ia = aux; 77 bus_space_tag_t iot = ia->ia_iot; 78 bus_space_handle_t ioh_d, ioh_c; 79 int res, ok = 1; 80 81 if (ISA_DIRECT_CONFIG(ia)) 82 return (0); 83 84 /* If values are hardwired to something that they can't be, punt. */ 85 if (ia->ia_nio < 1 || 86 (ia->ia_io[0].ir_addr != ISACF_PORT_DEFAULT && 87 ia->ia_io[0].ir_addr != IO_KBD)) 88 return (0); 89 90 if (ia->ia_niomem > 0 && 91 (ia->ia_iomem[0].ir_addr != ISACF_IOMEM_DEFAULT)) 92 return (0); 93 94 if (ia->ia_nirq < 1 || 95 (ia->ia_irq[0].ir_irq != ISACF_IRQ_DEFAULT && 96 ia->ia_irq[0].ir_irq != 1 /*XXX*/)) 97 return (0); 98 99 if (ia->ia_ndrq > 0 && 100 (ia->ia_drq[0].ir_drq != ISACF_DRQ_DEFAULT)) 101 return (0); 102 103 if (pckbc_is_console(iot, IO_KBD) == 0) { 104 struct pckbc_internal t; 105 106 if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d)) 107 return (0); 108 if (bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c)) { 109 bus_space_unmap(iot, ioh_d, 1); 110 return (0); 111 } 112 113 memset(&t, 0, sizeof(t)); 114 t.t_iot = iot; 115 t.t_ioh_d = ioh_d; 116 t.t_ioh_c = ioh_c; 117 118 /* flush KBC */ 119 (void) pckbc_poll_data1(&t, PCKBC_KBD_SLOT, 0); 120 121 /* KBC selftest */ 122 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) { 123 ok = 0; 124 goto out; 125 } 126 res = pckbc_poll_data1(&t, PCKBC_KBD_SLOT, 0); 127 if (res != 0x55) { 128 #ifdef DEBUG 129 printf("kbc selftest: %x\n", res); 130 #endif 131 ok = 0; 132 } 133 out: 134 bus_space_unmap(iot, ioh_d, 1); 135 bus_space_unmap(iot, ioh_c, 1); 136 } 137 138 if (ok) { 139 ia->ia_io[0].ir_addr = IO_KBD; 140 ia->ia_io[0].ir_size = 5; 141 ia->ia_nio = 1; 142 143 ia->ia_niomem = 0; 144 ia->ia_nirq = 0; 145 ia->ia_ndrq = 0; 146 } 147 return (ok); 148 } 149 150 void 151 pckbc_isa_attach(parent, self, aux) 152 struct device *parent, *self; 153 void *aux; 154 { 155 struct pckbc_isa_softc *isc = (void *)self; 156 struct pckbc_softc *sc = &isc->sc_pckbc; 157 struct isa_attach_args *ia = aux; 158 struct pckbc_internal *t; 159 bus_space_tag_t iot; 160 bus_space_handle_t ioh_d, ioh_c; 161 162 isc->sc_ic = ia->ia_ic; 163 iot = ia->ia_iot; 164 165 switch (ia->ia_nirq) { 166 case 1: 167 /* Both channels use the same IRQ. */ 168 isc->sc_irq[PCKBC_KBD_SLOT] = 169 isc->sc_irq[PCKBC_AUX_SLOT] = ia->ia_irq[0].ir_irq; 170 break; 171 172 case 2: 173 /* First IRQ is kbd, second IRQ is aux port. */ 174 isc->sc_irq[PCKBC_KBD_SLOT] = ia->ia_irq[0].ir_irq; 175 isc->sc_irq[PCKBC_AUX_SLOT] = ia->ia_irq[1].ir_irq; 176 break; 177 178 default: 179 /* Set up IRQs for "normal" ISA. */ 180 isc->sc_irq[PCKBC_KBD_SLOT] = 1; 181 isc->sc_irq[PCKBC_AUX_SLOT] = 12; 182 break; 183 } 184 185 sc->intr_establish = pckbc_isa_intr_establish; 186 187 if (pckbc_is_console(iot, IO_KBD)) { 188 t = &pckbc_consdata; 189 ioh_d = t->t_ioh_d; 190 ioh_c = t->t_ioh_c; 191 pckbc_console_attached = 1; 192 /* t->t_cmdbyte was initialized by cnattach */ 193 } else { 194 if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d) || 195 bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c)) 196 panic("pckbc_attach: couldn't map"); 197 198 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, 199 M_WAITOK|M_ZERO); 200 t->t_iot = iot; 201 t->t_ioh_d = ioh_d; 202 t->t_ioh_c = ioh_c; 203 t->t_addr = IO_KBD; 204 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 205 callout_init(&t->t_cleanup); 206 } 207 208 t->t_sc = sc; 209 sc->id = t; 210 211 printf("\n"); 212 213 /* Finish off the attach. */ 214 pckbc_attach(sc); 215 } 216 217 void 218 pckbc_isa_intr_establish(sc, slot) 219 struct pckbc_softc *sc; 220 pckbc_slot_t slot; 221 { 222 struct pckbc_isa_softc *isc = (void *) sc; 223 void *rv; 224 225 rv = isa_intr_establish(isc->sc_ic, isc->sc_irq[slot], IST_EDGE, 226 IPL_TTY, pckbcintr, sc); 227 if (rv == NULL) { 228 printf("%s: unable to establish interrupt for %s slot\n", 229 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 230 } else { 231 printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname, 232 isc->sc_irq[slot], pckbc_slot_names[slot]); 233 } 234 } 235