diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/drivers/virmidi.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/drivers/virmidi.c | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/ANDROID_3.4.5/sound/drivers/virmidi.c b/ANDROID_3.4.5/sound/drivers/virmidi.c deleted file mode 100644 index 9d97478a..00000000 --- a/ANDROID_3.4.5/sound/drivers/virmidi.c +++ /dev/null @@ -1,197 +0,0 @@ -/* - * Dummy soundcard for virtual rawmidi devices - * - * Copyright (c) 2000 by Takashi Iwai <tiwai@suse.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -/* - * VIRTUAL RAW MIDI DEVICE CARDS - * - * This dummy card contains up to 4 virtual rawmidi devices. - * They are not real rawmidi devices but just associated with sequencer - * clients, so that any input/output sources can be connected as a raw - * MIDI device arbitrary. - * Also, multiple access is allowed to a single rawmidi device. - * - * Typical usage is like following: - * - Load snd-virmidi module. - * # modprobe snd-virmidi index=2 - * Then, sequencer clients 72:0 to 75:0 will be created, which are - * mapped from /dev/snd/midiC1D0 to /dev/snd/midiC1D3, respectively. - * - * - Connect input/output via aconnect. - * % aconnect 64:0 72:0 # keyboard input redirection 64:0 -> 72:0 - * % aconnect 72:0 65:0 # output device redirection 72:0 -> 65:0 - * - * - Run application using a midi device (eg. /dev/snd/midiC1D0) - */ - -#include <linux/init.h> -#include <linux/wait.h> -#include <linux/err.h> -#include <linux/platform_device.h> -#include <linux/module.h> -#include <sound/core.h> -#include <sound/seq_kernel.h> -#include <sound/seq_virmidi.h> -#include <sound/initval.h> - -/* hack: OSS defines midi_devs, so undefine it (versioned symbols) */ -#undef midi_devs - -MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>"); -MODULE_DESCRIPTION("Dummy soundcard for virtual rawmidi devices"); -MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("{{ALSA,Virtual rawmidi device}}"); - -#define MAX_MIDI_DEVICES 4 - -static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ -static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ -static bool enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 0}; -static int midi_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 4}; - -module_param_array(index, int, NULL, 0444); -MODULE_PARM_DESC(index, "Index value for virmidi soundcard."); -module_param_array(id, charp, NULL, 0444); -MODULE_PARM_DESC(id, "ID string for virmidi soundcard."); -module_param_array(enable, bool, NULL, 0444); -MODULE_PARM_DESC(enable, "Enable this soundcard."); -module_param_array(midi_devs, int, NULL, 0444); -MODULE_PARM_DESC(midi_devs, "MIDI devices # (1-4)"); - -struct snd_card_virmidi { - struct snd_card *card; - struct snd_rawmidi *midi[MAX_MIDI_DEVICES]; -}; - -static struct platform_device *devices[SNDRV_CARDS]; - - -static int __devinit snd_virmidi_probe(struct platform_device *devptr) -{ - struct snd_card *card; - struct snd_card_virmidi *vmidi; - int idx, err; - int dev = devptr->id; - - err = snd_card_create(index[dev], id[dev], THIS_MODULE, - sizeof(struct snd_card_virmidi), &card); - if (err < 0) - return err; - vmidi = card->private_data; - vmidi->card = card; - - if (midi_devs[dev] > MAX_MIDI_DEVICES) { - snd_printk(KERN_WARNING - "too much midi devices for virmidi %d: " - "force to use %d\n", dev, MAX_MIDI_DEVICES); - midi_devs[dev] = MAX_MIDI_DEVICES; - } - for (idx = 0; idx < midi_devs[dev]; idx++) { - struct snd_rawmidi *rmidi; - struct snd_virmidi_dev *rdev; - if ((err = snd_virmidi_new(card, idx, &rmidi)) < 0) - goto __nodev; - rdev = rmidi->private_data; - vmidi->midi[idx] = rmidi; - strcpy(rmidi->name, "Virtual Raw MIDI"); - rdev->seq_mode = SNDRV_VIRMIDI_SEQ_DISPATCH; - } - - strcpy(card->driver, "VirMIDI"); - strcpy(card->shortname, "VirMIDI"); - sprintf(card->longname, "Virtual MIDI Card %i", dev + 1); - - snd_card_set_dev(card, &devptr->dev); - - if ((err = snd_card_register(card)) == 0) { - platform_set_drvdata(devptr, card); - return 0; - } - __nodev: - snd_card_free(card); - return err; -} - -static int __devexit snd_virmidi_remove(struct platform_device *devptr) -{ - snd_card_free(platform_get_drvdata(devptr)); - platform_set_drvdata(devptr, NULL); - return 0; -} - -#define SND_VIRMIDI_DRIVER "snd_virmidi" - -static struct platform_driver snd_virmidi_driver = { - .probe = snd_virmidi_probe, - .remove = __devexit_p(snd_virmidi_remove), - .driver = { - .name = SND_VIRMIDI_DRIVER - }, -}; - -static void snd_virmidi_unregister_all(void) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(devices); ++i) - platform_device_unregister(devices[i]); - platform_driver_unregister(&snd_virmidi_driver); -} - -static int __init alsa_card_virmidi_init(void) -{ - int i, cards, err; - - if ((err = platform_driver_register(&snd_virmidi_driver)) < 0) - return err; - - cards = 0; - for (i = 0; i < SNDRV_CARDS; i++) { - struct platform_device *device; - if (! enable[i]) - continue; - device = platform_device_register_simple(SND_VIRMIDI_DRIVER, - i, NULL, 0); - if (IS_ERR(device)) - continue; - if (!platform_get_drvdata(device)) { - platform_device_unregister(device); - continue; - } - devices[i] = device; - cards++; - } - if (!cards) { -#ifdef MODULE - printk(KERN_ERR "Card-VirMIDI soundcard not found or device busy\n"); -#endif - snd_virmidi_unregister_all(); - return -ENODEV; - } - return 0; -} - -static void __exit alsa_card_virmidi_exit(void) -{ - snd_virmidi_unregister_all(); -} - -module_init(alsa_card_virmidi_init) -module_exit(alsa_card_virmidi_exit) |