Rev 538 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 519 | mauro | 1 | /* |
| 538 | mauro | 2 | * Input driver speaker module |
| 519 | mauro | 3 | */ |
| 4 | |||
| 5 | /* |
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| 6 | * This program is free software; you can redistribute it and/or modify |
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| 7 | * it under the terms of the GNU General Public License as published by |
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| 8 | * the Free Software Foundation; either version 2 of the License, or |
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| 9 | * (at your option) any later version. |
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| 10 | * |
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| 11 | * This program is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | * GNU General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU General Public License |
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| 17 | * along with this program; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 19 | */ |
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| 20 | |||
| 21 | #include <linuxcomp.h> |
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| 22 | |||
| 23 | #include <linux/slab.h> |
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| 24 | #include <linux/module.h> |
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| 25 | #include <linux/input.h> |
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| 26 | #include <linux/init.h> |
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| 27 | #include <linux/device.h> |
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| 28 | |||
| 29 | //#define DEBUG_SPK |
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| 30 | |||
| 31 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); |
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| 538 | mauro | 32 | MODULE_DESCRIPTION("Input driver joystick module"); |
| 519 | mauro | 33 | MODULE_LICENSE("GPL"); |
| 34 | |||
| 35 | static char speaker_name[] = "speaker"; |
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| 36 | static struct input_handler speaker_handler; |
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| 37 | |||
| 38 | /* |
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| 39 | * Making beeps and bells. |
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| 40 | */ |
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| 41 | void spk_nosound(unsigned long ignored) |
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| 42 | { |
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| 43 | struct list_head * node; |
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| 44 | |||
| 45 | list_for_each(node,&speaker_handler.h_list) { |
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| 46 | struct input_handle *handle = to_handle_h(node); |
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| 47 | if (test_bit(EV_SND, handle->dev->evbit)) { |
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| 48 | if (test_bit(SND_TONE, handle->dev->sndbit)) |
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| 49 | input_event(handle->dev, EV_SND, SND_TONE, 0); |
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| 50 | if (test_bit(SND_BELL, handle->dev->sndbit)) |
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| 51 | input_event(handle->dev, EV_SND, SND_BELL, 0); |
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| 52 | } |
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| 53 | } |
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| 54 | } |
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| 55 | |||
| 56 | static struct timer_list spk_mksound_timer = |
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| 57 | TIMER_INITIALIZER(spk_nosound, 0, 0); |
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| 58 | |||
| 59 | void spk_mksound(unsigned int hz, unsigned int ticks) |
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| 60 | { |
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| 61 | struct list_head * node; |
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| 62 | |||
| 63 | del_timer(&spk_mksound_timer); |
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| 64 | |||
| 65 | if (hz) { |
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| 66 | list_for_each_prev(node,&speaker_handler.h_list) { |
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| 67 | struct input_handle *handle = to_handle_h(node); |
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| 68 | if (test_bit(EV_SND, handle->dev->evbit)) { |
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| 69 | if (test_bit(SND_TONE, handle->dev->sndbit)) { |
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| 70 | input_event(handle->dev, EV_SND, SND_TONE, hz); |
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| 71 | break; |
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| 72 | } |
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| 73 | if (test_bit(SND_BELL, handle->dev->sndbit)) { |
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| 74 | input_event(handle->dev, EV_SND, SND_BELL, 1); |
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| 75 | break; |
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| 76 | } |
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| 77 | } |
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| 78 | } |
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| 79 | if (ticks) |
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| 80 | mod_timer(&spk_mksound_timer, jiffies26 + ticks); |
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| 81 | } else |
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| 82 | spk_nosound(0); |
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| 83 | } |
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| 84 | |||
| 85 | static void speaker_event(struct input_handle *handle, unsigned int type, unsigned int code, int value) |
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| 86 | { |
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| 87 | if (type != EV_SND) |
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| 88 | return; |
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| 89 | |||
| 90 | #ifdef DEBUG_SPK |
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| 91 | printk(KERN_DEBUG "speaker.c: Event. Dev: %s, Type: %d, Code: %d, Value: %d\n", handle->dev->phys, type, code, value); |
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| 92 | #endif |
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| 93 | } |
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| 94 | |||
| 95 | static struct input_handle *speaker_connect(struct input_handler *handler, struct input_dev *dev, struct input_device_id *id) |
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| 96 | { |
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| 97 | struct input_handle *handle; |
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| 98 | |||
| 99 | if (!test_bit(EV_SND, dev->evbit)) |
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| 100 | return NULL; |
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| 101 | |||
| 102 | if (!(handle = kmalloc(sizeof(struct input_handle), GFP_KERNEL))) |
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| 103 | return NULL; |
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| 104 | memset(handle, 0, sizeof(struct input_handle)); |
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| 105 | |||
| 106 | handle->dev = dev; |
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| 107 | handle->handler = handler; |
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| 108 | handle->name = speaker_name; |
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| 109 | |||
| 110 | input_open_device(handle); |
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| 111 | |||
| 112 | #ifdef DEBUG_SPK |
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| 113 | printk(KERN_DEBUG "speaker.c: Connected device: \"%s\", %s\n", dev->name, dev->phys); |
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| 114 | #endif |
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| 115 | |||
| 116 | return handle; |
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| 117 | } |
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| 118 | |||
| 119 | static void speaker_disconnect(struct input_handle *handle) |
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| 120 | { |
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| 121 | #ifdef DEBUG_SPK |
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| 122 | printk(KERN_DEBUG "speaker.c: Disconnected device: %s\n", handle->dev->phys); |
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| 123 | #endif |
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| 124 | input_close_device(handle); |
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| 125 | |||
| 126 | kfree(handle); |
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| 127 | } |
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| 128 | |||
| 129 | static struct input_device_id speaker_ids[] = { |
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| 130 | { .driver_info = 1 }, // Matches all devices |
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| 131 | { }, // Terminating zero entry |
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| 132 | }; |
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| 133 | |||
| 134 | /*static struct input_device_id speaker_ids[] = { |
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| 135 | { |
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| 136 | .flags = INPUT_DEVICE_ID_MATCH_EVBIT, |
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| 137 | .evbit = { BIT(EV_SND) }, |
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| 138 | }, |
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| 139 | |||
| 140 | { }, // Terminating entry |
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| 141 | };*/ |
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| 142 | |||
| 143 | MODULE_DEVICE_TABLE(input, speaker_ids); |
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| 144 | |||
| 145 | static struct input_handler speaker_handler = { |
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| 146 | .event = speaker_event, |
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| 147 | .connect = speaker_connect, |
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| 148 | .disconnect = speaker_disconnect, |
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| 149 | .name = "speaker", |
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| 150 | .id_table = speaker_ids, |
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| 151 | }; |
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| 152 | |||
| 153 | int __init speaker_init(void) |
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| 154 | { |
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| 155 | input_register_handler(&speaker_handler); |
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| 156 | return 0; |
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| 157 | } |
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| 158 | |||
| 159 | void __exit speaker_exit(void) |
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| 160 | { |
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| 161 | input_unregister_handler(&speaker_handler); |
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| 162 | } |
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| 163 | |||
| 164 | module_init(speaker_init); |
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| 165 | module_exit(speaker_exit); |