1 /* $NetBSD: nbpkbd.c,v 1.3 2021/08/07 16:18:53 thorpej Exp $ */ 2 /* 3 * Copyright (c) 2011 KIYOHARA Takashi 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 #include <sys/cdefs.h> 28 __KERNEL_RCSID(0, "$NetBSD: nbpkbd.c,v 1.3 2021/08/07 16:18:53 thorpej Exp $"); 29 30 #include <sys/param.h> 31 #include <sys/callout.h> 32 #include <sys/device.h> 33 #include <sys/errno.h> 34 #include <sys/kernel.h> 35 36 #include <machine/platid.h> 37 #include <machine/platid_mask.h> 38 39 #include <arm/xscale/pxa2x0_i2c.h> 40 41 #include <hpcarm/dev/nbppconvar.h> 42 43 #include <dev/hpc/hpckbdvar.h> 44 45 #include <dev/i2c/i2cvar.h> 46 47 #include "locators.h" 48 49 #ifdef NBPKBD_DEBUG 50 #define DPRINTF(x) printf x 51 #else 52 #define DPRINTF(x) 53 #endif 54 55 #define IS_KEY_DOWN(x) (((x) & 0x80) == 0x00) 56 #define KEY_CODE(x) ((x) & 0x7f) 57 #define KEY_INITIAL_INTERVAL (500 * hz / 1000) /* 500ms */ 58 #define KEY_REPEAT_INTERVAL (200 * hz / 1000) /* 200ms */ 59 60 struct nbpkbd_softc { 61 device_t sc_dev; 62 device_t sc_parent; 63 int sc_tag; 64 65 struct hpckbd_ic_if sc_if; 66 struct hpckbd_if *sc_hpckbd; 67 68 int sc_enabled; 69 70 callout_t sc_callout; 71 uint8_t sc_last_scancode; 72 }; 73 74 static int nbpkbd_match(device_t, cfdata_t, void *); 75 static void nbpkbd_attach(device_t, device_t, void *); 76 77 static int nbpkbd_input_establish(void *, struct hpckbd_if *); 78 static int nbpkbd_input(void *, int, char *); 79 static int nbpkbd_poll(void *); 80 81 static void nbpkbd_key_repeat(void *); 82 83 CFATTACH_DECL_NEW(nbpkbd, sizeof(struct nbpkbd_softc), 84 nbpkbd_match, nbpkbd_attach, NULL, NULL); 85 86 87 /* ARGSUSED */ 88 static int 89 nbpkbd_match(device_t parent, cfdata_t match, void *aux) 90 { 91 struct nbppcon_attach_args *pcon = aux; 92 93 if (strcmp(pcon->aa_name, match->cf_name) || 94 pcon->aa_tag == NBPPCONCF_TAG_DEFAULT) 95 return 0; 96 97 return 1; 98 } 99 100 static void 101 nbpkbd_attach(device_t parent, device_t self, void *aux) 102 { 103 struct nbpkbd_softc *sc = device_private(self); 104 struct nbppcon_attach_args *pcon = aux; 105 struct hpckbd_attach_args haa; 106 107 aprint_normal(": NETBOOK PRO Keyboard\n"); 108 aprint_naive("\n"); 109 110 sc->sc_dev = self; 111 sc->sc_parent = parent; 112 sc->sc_tag = pcon->aa_tag; 113 sc->sc_if.hii_ctx = sc; 114 sc->sc_if.hii_establish = nbpkbd_input_establish; 115 sc->sc_if.hii_poll = nbpkbd_poll; 116 117 hpckbd_cnattach(&sc->sc_if); 118 119 callout_init(&sc->sc_callout, 0); 120 callout_setfunc(&sc->sc_callout, nbpkbd_key_repeat, sc); 121 122 /* Attach hpckbd */ 123 haa.haa_ic = &sc->sc_if; 124 config_found(self, &haa, hpckbd_print, CFARGS_NONE); 125 126 if (nbppcon_regist_callback(parent, sc->sc_tag, nbpkbd_input, sc) == 127 NULL) 128 aprint_error_dev(self, "callback regist failed\n"); 129 } 130 131 132 static int 133 nbpkbd_input_establish(void *arg, struct hpckbd_if *kbdif) 134 { 135 struct nbpkbd_softc *sc = arg; 136 137 sc->sc_hpckbd = kbdif; 138 sc->sc_enabled = 1; 139 140 return 0; 141 } 142 143 static int 144 nbpkbd_input(void *arg, int buflen, char *buf) 145 { 146 struct nbpkbd_softc *sc = arg; 147 148 #ifdef NBPKBD_DEBUG 149 { 150 int i; 151 152 printf("%s:", __func__); 153 for (i = 0; i < buflen; i++) 154 printf(" %02x", buf[i]); 155 printf("\n"); 156 } 157 #endif 158 159 if (buflen != 2) { 160 aprint_error_dev(sc->sc_dev, "ugly length %d\n", buflen); 161 return -1; 162 } 163 164 hpckbd_input(sc->sc_hpckbd, IS_KEY_DOWN(buf[1]), KEY_CODE(buf[1])); 165 166 sc->sc_last_scancode = buf[1]; 167 if (IS_KEY_DOWN(buf[1])) 168 callout_schedule(&sc->sc_callout, KEY_INITIAL_INTERVAL); 169 else 170 callout_stop(&sc->sc_callout); 171 172 delay(50); /* XXXX */ 173 174 if (nbppcon_kbd_ready(sc->sc_parent) != 0) 175 aprint_error_dev(sc->sc_dev, 176 "%s: kbd-ready failed\n", __func__); 177 178 return 0; 179 } 180 181 static int 182 nbpkbd_poll(void *arg) 183 { 184 struct nbpkbd_softc *sc = arg; 185 int rv, s; 186 char buf[2]; 187 188 if (!sc->sc_enabled) 189 return 0; 190 191 s = spltty(); 192 193 rv = nbppcon_poll(sc->sc_parent, sc->sc_tag, sizeof(buf), buf); 194 195 DPRINTF(("%s: received %02x %02x\n", 196 device_xname(sc->sc_dev), buf[0], buf[1])); 197 198 hpckbd_input(sc->sc_hpckbd, IS_KEY_DOWN(buf[1]), KEY_CODE(buf[1])); 199 200 delay(50); /* XXXX */ 201 202 rv = nbppcon_kbd_ready(sc->sc_parent); 203 204 splx(s); 205 206 if (rv != 0) 207 aprint_error_dev(sc->sc_dev, 208 "%s: kbd-ready failed\n", __func__); 209 210 return 0; 211 } 212 213 static void 214 nbpkbd_key_repeat(void *arg) 215 { 216 struct nbpkbd_softc *sc = arg; 217 218 hpckbd_input(sc->sc_hpckbd, IS_KEY_DOWN(sc->sc_last_scancode), 219 KEY_CODE(sc->sc_last_scancode)); 220 221 if (IS_KEY_DOWN(sc->sc_last_scancode)) 222 callout_schedule(&sc->sc_callout, KEY_REPEAT_INTERVAL); 223 } 224
Indexes created Mon Sep 22 13:09:51 GMT 2025