1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2011, Justin Hibbits. 5 * Copyright (c) 2002, Miodrag Vallat. 6 * Copyright (C) 1999 Tsubai Masanari. 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 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * OpenBSD: abtn.c,v 1.12 2009/01/10 18:00:59 robert Exp 31 * NetBSD: abtn.c,v 1.1 1999/07/12 17:48:26 tsubai Exp 32 * 33 * $FreeBSD$ 34 */ 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/module.h> 39 #include <sys/kernel.h> 40 #include <sys/bus.h> 41 42 #include <machine/bus.h> 43 44 #include <dev/ofw/openfirm.h> 45 #include <machine/ofw_machdep.h> 46 47 #include <dev/adb/adb.h> 48 49 #define ABTN_HANDLER_ID 31 50 51 struct abtn_softc { 52 device_t sc_dev; 53 54 int handler_id; 55 }; 56 57 static int abtn_probe(device_t dev); 58 static int abtn_attach(device_t dev); 59 static u_int abtn_receive_packet(device_t dev, u_char status, 60 u_char command, u_char reg, int len, u_char *data); 61 62 static device_method_t abtn_methods[] = { 63 /* Device interface */ 64 DEVMETHOD(device_probe, abtn_probe), 65 DEVMETHOD(device_attach, abtn_attach), 66 DEVMETHOD(device_shutdown, bus_generic_shutdown), 67 DEVMETHOD(device_suspend, bus_generic_suspend), 68 DEVMETHOD(device_resume, bus_generic_resume), 69 70 /* ADB interface */ 71 DEVMETHOD(adb_receive_packet, abtn_receive_packet), 72 { 0, 0 } 73 }; 74 75 static driver_t abtn_driver = { 76 "abtn", 77 abtn_methods, 78 sizeof(struct abtn_softc), 79 }; 80 81 DRIVER_MODULE(abtn, adb, abtn_driver, 0, 0); 82 83 static int 84 abtn_probe(device_t dev) 85 { 86 uint8_t type; 87 88 type = adb_get_device_type(dev); 89 90 if (type != ADB_DEVICE_MISC) 91 return (ENXIO); 92 93 device_set_desc(dev, "ADB Brightness/Volume/Eject Buttons"); 94 return (0); 95 } 96 97 static int 98 abtn_attach(device_t dev) 99 { 100 struct abtn_softc *sc; 101 102 sc = device_get_softc(dev); 103 sc->sc_dev = dev; 104 105 sc->handler_id = adb_get_device_handler(dev); 106 107 return 0; 108 } 109 110 static u_int 111 abtn_receive_packet(device_t dev, u_char status, 112 u_char command, u_char reg, int len, u_char *data) 113 { 114 u_int cmd; 115 116 cmd = data[0]; 117 118 switch (cmd) { 119 case 0x0a: /* decrease brightness */ 120 devctl_notify("PMU", "keys", "brightness", 121 "notify=down"); 122 break; 123 124 case 0x09: /* increase brightness */ 125 devctl_notify("PMU", "keys", "brightness", "notify=up"); 126 break; 127 128 case 0x08: /* mute */ 129 case 0x01: /* mute, AV hardware */ 130 devctl_notify("PMU", "keys", "mute", NULL); 131 break; 132 case 0x07: /* decrease volume */ 133 case 0x02: /* decrease volume, AV hardware */ 134 devctl_notify("PMU", "keys", "volume", "notify=down"); 135 break; 136 case 0x06: /* increase volume */ 137 case 0x03: /* increase volume, AV hardware */ 138 devctl_notify("PMU", "keys", "volume", "notify=up"); 139 break; 140 case 0x0c: /* mirror display key */ 141 /* Need callback to do something with this */ 142 break; 143 case 0x0b: /* eject tray */ 144 devctl_notify("PMU", "keys", "eject", NULL); 145 break; 146 case 0x7f: /* numlock */ 147 /* Need callback to do something with this */ 148 break; 149 150 default: 151 #ifdef DEBUG 152 if ((cmd & ~0x7f) == 0) 153 device_printf(dev, "unknown ADB button 0x%x\n", cmd); 154 #endif 155 break; 156 } 157 return 0; 158 } 159