1 /* $OpenBSD: pckbc_isa.c,v 1.14 2013/12/06 21:03:03 deraadt Exp $ */ 2 /* $NetBSD: pckbc_isa.c,v 1.2 2000/03/23 07:01:35 thorpej Exp $ */ 3 4 /* 5 * Copyright (c) 1998 6 * Matthias Drochner. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/kernel.h> 32 #include <sys/device.h> 33 #include <sys/malloc.h> 34 35 #include <machine/bus.h> 36 37 #include <dev/isa/isareg.h> 38 #include <dev/isa/isavar.h> 39 40 #include <dev/ic/i8042reg.h> 41 #include <dev/ic/pckbcvar.h> 42 43 int pckbc_isa_match(struct device *, void *, void *); 44 void pckbc_isa_attach(struct device *, struct device *, void *); 45 int pckbc_isa_activate(struct device *, int); 46 47 struct pckbc_isa_softc { 48 struct pckbc_softc sc_pckbc; 49 50 isa_chipset_tag_t sc_ic; 51 int sc_irq[PCKBC_NSLOTS]; 52 }; 53 54 struct cfattach pckbc_isa_ca = { 55 sizeof(struct pckbc_isa_softc), pckbc_isa_match, pckbc_isa_attach, 56 NULL, pckbc_isa_activate 57 }; 58 59 void pckbc_isa_intr_establish(struct pckbc_softc *, pckbc_slot_t); 60 61 int 62 pckbc_isa_match(struct device *parent, void *match, void *aux) 63 { 64 struct isa_attach_args *ia = aux; 65 bus_space_tag_t iot = ia->ia_iot; 66 bus_space_handle_t ioh_d, ioh_c; 67 int res; 68 69 /* If values are hardwired to something that they can't be, punt. */ 70 if ((ia->ia_iobase != IOBASEUNK && ia->ia_iobase != IO_KBD) || 71 ia->ia_maddr != MADDRUNK || 72 (ia->ia_irq != IRQUNK && ia->ia_irq != 1 /* XXX */) || 73 ia->ia_drq != DRQUNK) 74 return (0); 75 76 if (pckbc_is_console(iot, IO_KBD) == 0) { 77 if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d)) 78 return (0); 79 if (bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c)) 80 goto fail; 81 82 /* flush KBC */ 83 (void) pckbc_poll_data1(iot, ioh_d, ioh_c, PCKBC_KBD_SLOT, 0); 84 85 /* KBC selftest */ 86 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) 87 goto fail2; 88 res = pckbc_poll_data1(iot, ioh_d, ioh_c, PCKBC_KBD_SLOT, 0); 89 if (res != 0x55) { 90 printf("kbc selftest: %x\n", res); 91 goto fail2; 92 } 93 bus_space_unmap(iot, ioh_c, 1); 94 bus_space_unmap(iot, ioh_d, 1); 95 } 96 97 ia->ia_iobase = IO_KBD; 98 ia->ia_iosize = 5; 99 ia->ia_msize = 0x0; 100 101 return (1); 102 103 fail2: 104 bus_space_unmap(iot, ioh_c, 1); 105 fail: 106 bus_space_unmap(iot, ioh_d, 1); 107 return (0); 108 } 109 110 int 111 pckbc_isa_activate(struct device *self, int act) 112 { 113 struct pckbc_isa_softc *isc = (struct pckbc_isa_softc *)self; 114 int rv = 0; 115 116 switch (act) { 117 case DVACT_SUSPEND: 118 rv = config_activate_children(self, act); 119 pckbc_stop(&isc->sc_pckbc); 120 break; 121 case DVACT_RESUME: 122 pckbc_reset(&isc->sc_pckbc); 123 rv = config_activate_children(self, act); 124 break; 125 default: 126 rv = config_activate_children(self, act); 127 break; 128 } 129 return (rv); 130 } 131 132 void 133 pckbc_isa_attach(struct device *parent, struct device *self, void *aux) 134 { 135 struct pckbc_isa_softc *isc = (void *)self; 136 struct pckbc_softc *sc = &isc->sc_pckbc; 137 struct cfdata *cf = self->dv_cfdata; 138 struct isa_attach_args *ia = aux; 139 struct pckbc_internal *t; 140 bus_space_tag_t iot; 141 bus_space_handle_t ioh_d, ioh_c; 142 143 isc->sc_ic = ia->ia_ic; 144 iot = ia->ia_iot; 145 146 /* 147 * Set up IRQs for "normal" ISA. 148 */ 149 isc->sc_irq[PCKBC_KBD_SLOT] = 1; 150 isc->sc_irq[PCKBC_AUX_SLOT] = 12; 151 152 sc->intr_establish = pckbc_isa_intr_establish; 153 154 if (pckbc_is_console(iot, IO_KBD)) { 155 t = &pckbc_consdata; 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(*t), M_DEVBUF, M_WAITOK | M_ZERO); 164 t->t_iot = iot; 165 t->t_ioh_d = ioh_d; 166 t->t_ioh_c = ioh_c; 167 t->t_addr = IO_KBD; 168 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 169 } 170 171 t->t_sc = sc; 172 sc->id = t; 173 174 printf("\n"); 175 176 /* Finish off the attach. */ 177 pckbc_attach(sc, cf->cf_flags); 178 } 179 180 void 181 pckbc_isa_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot) 182 { 183 struct pckbc_isa_softc *isc = (void *)sc; 184 void *rv; 185 186 rv = isa_intr_establish(isc->sc_ic, isc->sc_irq[slot], IST_EDGE, 187 IPL_TTY, pckbcintr, sc, sc->sc_dv.dv_xname); 188 if (rv == NULL) { 189 printf("%s: unable to establish interrupt for %s slot\n", 190 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 191 } else { 192 printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname, 193 isc->sc_irq[slot], pckbc_slot_names[slot]); 194 } 195 } 196