1 /* $NetBSD: pckbc_isa.c,v 1.7 2002/01/12 16:21:07 tsutsui 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 1.7 2002/01/12 16:21:07 tsutsui 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 struct cfattach pckbc_isa_ca = { 66 sizeof(struct pckbc_isa_softc), pckbc_isa_match, pckbc_isa_attach, 67 }; 68 69 void pckbc_isa_intr_establish __P((struct pckbc_softc *, pckbc_slot_t)); 70 71 int 72 pckbc_isa_match(parent, match, aux) 73 struct device *parent; 74 struct cfdata *match; 75 void *aux; 76 { 77 struct isa_attach_args *ia = aux; 78 bus_space_tag_t iot = ia->ia_iot; 79 bus_space_handle_t ioh_d, ioh_c; 80 int res, ok = 1; 81 82 if (ISA_DIRECT_CONFIG(ia)) 83 return (0); 84 85 /* If values are hardwired to something that they can't be, punt. */ 86 if (ia->ia_nio < 1 || 87 (ia->ia_io[0].ir_addr != ISACF_PORT_DEFAULT && 88 ia->ia_io[0].ir_addr != IO_KBD)) 89 return (0); 90 91 if (ia->ia_niomem > 0 && 92 (ia->ia_iomem[0].ir_addr != ISACF_IOMEM_DEFAULT)) 93 return (0); 94 95 if (ia->ia_nirq < 1 || 96 (ia->ia_irq[0].ir_irq != ISACF_IRQ_DEFAULT && 97 ia->ia_irq[0].ir_irq != 1 /*XXX*/)) 98 return (0); 99 100 if (ia->ia_ndrq > 0 && 101 (ia->ia_drq[0].ir_drq != ISACF_DRQ_DEFAULT)) 102 return (0); 103 104 if (pckbc_is_console(iot, IO_KBD) == 0) { 105 struct pckbc_internal t; 106 107 if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d)) 108 return (0); 109 if (bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c)) { 110 bus_space_unmap(iot, ioh_d, 1); 111 return (0); 112 } 113 114 memset(&t, 0, sizeof(t)); 115 t.t_iot = iot; 116 t.t_ioh_d = ioh_d; 117 t.t_ioh_c = ioh_c; 118 119 /* flush KBC */ 120 (void) pckbc_poll_data1(&t, PCKBC_KBD_SLOT, 0); 121 122 /* KBC selftest */ 123 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) { 124 ok = 0; 125 goto out; 126 } 127 res = pckbc_poll_data1(&t, PCKBC_KBD_SLOT, 0); 128 if (res != 0x55) { 129 printf("kbc selftest: %x\n", res); 130 ok = 0; 131 } 132 out: 133 bus_space_unmap(iot, ioh_d, 1); 134 bus_space_unmap(iot, ioh_c, 1); 135 } 136 137 if (ok) { 138 ia->ia_io[0].ir_addr = IO_KBD; 139 ia->ia_io[0].ir_size = 5; 140 ia->ia_nio = 1; 141 142 ia->ia_niomem = 0; 143 ia->ia_nirq = 0; 144 ia->ia_ndrq = 0; 145 } 146 return (ok); 147 } 148 149 void 150 pckbc_isa_attach(parent, self, aux) 151 struct device *parent, *self; 152 void *aux; 153 { 154 struct pckbc_isa_softc *isc = (void *)self; 155 struct pckbc_softc *sc = &isc->sc_pckbc; 156 struct isa_attach_args *ia = aux; 157 struct pckbc_internal *t; 158 bus_space_tag_t iot; 159 bus_space_handle_t ioh_d, ioh_c; 160 161 isc->sc_ic = ia->ia_ic; 162 iot = ia->ia_iot; 163 164 switch (ia->ia_nirq) { 165 case 1: 166 /* Both channels use the same IRQ. */ 167 isc->sc_irq[PCKBC_KBD_SLOT] = 168 isc->sc_irq[PCKBC_AUX_SLOT] = ia->ia_irq[0].ir_irq; 169 break; 170 171 case 2: 172 /* First IRQ is kbd, second IRQ is aux port. */ 173 isc->sc_irq[PCKBC_KBD_SLOT] = ia->ia_irq[0].ir_irq; 174 isc->sc_irq[PCKBC_AUX_SLOT] = ia->ia_irq[1].ir_irq; 175 break; 176 177 default: 178 /* Set up IRQs for "normal" ISA. */ 179 isc->sc_irq[PCKBC_KBD_SLOT] = 1; 180 isc->sc_irq[PCKBC_AUX_SLOT] = 12; 181 break; 182 } 183 184 sc->intr_establish = pckbc_isa_intr_establish; 185 186 if (pckbc_is_console(iot, IO_KBD)) { 187 t = &pckbc_consdata; 188 ioh_d = t->t_ioh_d; 189 ioh_c = t->t_ioh_c; 190 pckbc_console_attached = 1; 191 /* t->t_cmdbyte was initialized by cnattach */ 192 } else { 193 if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d) || 194 bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c)) 195 panic("pckbc_attach: couldn't map"); 196 197 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, 198 M_WAITOK|M_ZERO); 199 t->t_iot = iot; 200 t->t_ioh_d = ioh_d; 201 t->t_ioh_c = ioh_c; 202 t->t_addr = IO_KBD; 203 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 204 callout_init(&t->t_cleanup); 205 } 206 207 t->t_sc = sc; 208 sc->id = t; 209 210 printf("\n"); 211 212 /* Finish off the attach. */ 213 pckbc_attach(sc); 214 } 215 216 void 217 pckbc_isa_intr_establish(sc, slot) 218 struct pckbc_softc *sc; 219 pckbc_slot_t slot; 220 { 221 struct pckbc_isa_softc *isc = (void *) sc; 222 void *rv; 223 224 rv = isa_intr_establish(isc->sc_ic, isc->sc_irq[slot], IST_EDGE, 225 IPL_TTY, pckbcintr, sc); 226 if (rv == NULL) { 227 printf("%s: unable to establish interrupt for %s slot\n", 228 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 229 } else { 230 printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname, 231 isc->sc_irq[slot], pckbc_slot_names[slot]); 232 } 233 } 234