1 /*- 2 * Copyright (c) 2011, Justin Hibbits. 3 * Copyright (c) 2002, Miodrag Vallat. 4 * Copyright (C) 1999 Tsubai Masanari. 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 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 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 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * OpenBSD: abtn.c,v 1.12 2009/01/10 18:00:59 robert Exp 29 * NetBSD: abtn.c,v 1.1 1999/07/12 17:48:26 tsubai Exp 30 * 31 * $FreeBSD$ 32 */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/module.h> 37 #include <sys/kernel.h> 38 #include <sys/bus.h> 39 40 #include <machine/bus.h> 41 42 #include <dev/ofw/openfirm.h> 43 #include <machine/ofw_machdep.h> 44 45 #include <dev/adb/adb.h> 46 47 #define ABTN_HANDLER_ID 31 48 49 struct abtn_softc { 50 device_t sc_dev; 51 52 int handler_id; 53 }; 54 55 static int abtn_probe(device_t dev); 56 static int abtn_attach(device_t dev); 57 static u_int abtn_receive_packet(device_t dev, u_char status, 58 u_char command, u_char reg, int len, u_char *data); 59 60 static device_method_t abtn_methods[] = { 61 /* Device interface */ 62 DEVMETHOD(device_probe, abtn_probe), 63 DEVMETHOD(device_attach, abtn_attach), 64 DEVMETHOD(device_shutdown, bus_generic_shutdown), 65 DEVMETHOD(device_suspend, bus_generic_suspend), 66 DEVMETHOD(device_resume, bus_generic_resume), 67 68 /* ADB interface */ 69 DEVMETHOD(adb_receive_packet, abtn_receive_packet), 70 71 { 0, 0 } 72 }; 73 74 static driver_t abtn_driver = { 75 "abtn", 76 abtn_methods, 77 sizeof(struct abtn_softc), 78 }; 79 80 static devclass_t abtn_devclass; 81 82 DRIVER_MODULE(abtn, adb, abtn_driver, abtn_devclass, 0, 0); 83 84 static int 85 abtn_probe(device_t dev) 86 { 87 uint8_t type; 88 89 type = adb_get_device_type(dev); 90 91 if (type != ADB_DEVICE_MISC) 92 return (ENXIO); 93 94 device_set_desc(dev, "ADB Brightness/Volume/Eject Buttons"); 95 return (0); 96 } 97 98 static int 99 abtn_attach(device_t dev) 100 { 101 struct abtn_softc *sc; 102 103 sc = device_get_softc(dev); 104 sc->sc_dev = dev; 105 106 sc->handler_id = adb_get_device_handler(dev); 107 108 return 0; 109 } 110 111 static u_int 112 abtn_receive_packet(device_t dev, u_char status, 113 u_char command, u_char reg, int len, u_char *data) 114 { 115 u_int cmd; 116 117 cmd = data[0]; 118 119 switch (cmd) { 120 case 0x0a: /* decrease brightness */ 121 if (devctl_process_running()) 122 devctl_notify("PMU", "keys", "brightness", 123 "notify=down"); 124 break; 125 126 case 0x09: /* increase brightness */ 127 if (devctl_process_running()) 128 devctl_notify("PMU", "keys", "brightness", "notify=up"); 129 break; 130 131 case 0x08: /* mute */ 132 case 0x01: /* mute, AV hardware */ 133 if (devctl_process_running()) 134 devctl_notify("PMU", "keys", "mute", NULL); 135 break; 136 case 0x07: /* decrease volume */ 137 case 0x02: /* decrease volume, AV hardware */ 138 if (devctl_process_running()) 139 devctl_notify("PMU", "keys", "volume", "notify=down"); 140 break; 141 case 0x06: /* increase volume */ 142 case 0x03: /* increase volume, AV hardware */ 143 if (devctl_process_running()) 144 devctl_notify("PMU", "keys", "volume", "notify=up"); 145 break; 146 case 0x0c: /* mirror display key */ 147 /* Need callback to do something with this */ 148 break; 149 case 0x0b: /* eject tray */ 150 if (devctl_process_running()) 151 devctl_notify("PMU", "keys", "eject", NULL); 152 case 0x7f: /* numlock */ 153 /* Need callback to do something with this */ 154 break; 155 156 default: 157 #ifdef DEBUG 158 if ((cmd & ~0x7f) == 0) 159 device_printf(dev, "unknown ADB button 0x%x\n", cmd); 160 #endif 161 break; 162 } 163 return 0; 164 } 165 166