cd354f1ae7
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
197 lines
5.6 KiB
C
197 lines
5.6 KiB
C
/*
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* Dummy soundcard for virtual rawmidi devices
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*
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* Copyright (c) 2000 by Takashi Iwai <tiwai@suse.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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/*
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* VIRTUAL RAW MIDI DEVICE CARDS
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*
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* This dummy card contains up to 4 virtual rawmidi devices.
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* They are not real rawmidi devices but just associated with sequencer
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* clients, so that any input/output sources can be connected as a raw
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* MIDI device arbitrary.
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* Also, multiple access is allowed to a single rawmidi device.
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*
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* Typical usage is like following:
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* - Load snd-virmidi module.
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* # modprobe snd-virmidi index=2
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* Then, sequencer clients 72:0 to 75:0 will be created, which are
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* mapped from /dev/snd/midiC1D0 to /dev/snd/midiC1D3, respectively.
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*
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* - Connect input/output via aconnect.
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* % aconnect 64:0 72:0 # keyboard input redirection 64:0 -> 72:0
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* % aconnect 72:0 65:0 # output device redirection 72:0 -> 65:0
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*
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* - Run application using a midi device (eg. /dev/snd/midiC1D0)
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*/
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#include <sound/driver.h>
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#include <linux/init.h>
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#include <linux/wait.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/moduleparam.h>
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#include <sound/core.h>
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#include <sound/seq_kernel.h>
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#include <sound/seq_virmidi.h>
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#include <sound/initval.h>
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/* hack: OSS defines midi_devs, so undefine it (versioned symbols) */
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#undef midi_devs
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MODULE_AUTHOR("Takashi Iwai <tiwai@suse.de>");
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MODULE_DESCRIPTION("Dummy soundcard for virtual rawmidi devices");
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MODULE_LICENSE("GPL");
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MODULE_SUPPORTED_DEVICE("{{ALSA,Virtual rawmidi device}}");
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#define MAX_MIDI_DEVICES 4
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
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static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 0};
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static int midi_devs[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 4};
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "Index value for virmidi soundcard.");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string for virmidi soundcard.");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "Enable this soundcard.");
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module_param_array(midi_devs, int, NULL, 0444);
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MODULE_PARM_DESC(midi_devs, "MIDI devices # (1-4)");
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struct snd_card_virmidi {
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struct snd_card *card;
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struct snd_rawmidi *midi[MAX_MIDI_DEVICES];
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};
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static struct platform_device *devices[SNDRV_CARDS];
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static int __init snd_virmidi_probe(struct platform_device *devptr)
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{
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struct snd_card *card;
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struct snd_card_virmidi *vmidi;
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int idx, err;
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int dev = devptr->id;
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card = snd_card_new(index[dev], id[dev], THIS_MODULE,
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sizeof(struct snd_card_virmidi));
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if (card == NULL)
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return -ENOMEM;
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vmidi = (struct snd_card_virmidi *)card->private_data;
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vmidi->card = card;
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if (midi_devs[dev] > MAX_MIDI_DEVICES) {
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snd_printk("too much midi devices for virmidi %d: force to use %d\n", dev, MAX_MIDI_DEVICES);
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midi_devs[dev] = MAX_MIDI_DEVICES;
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}
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for (idx = 0; idx < midi_devs[dev]; idx++) {
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struct snd_rawmidi *rmidi;
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struct snd_virmidi_dev *rdev;
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if ((err = snd_virmidi_new(card, idx, &rmidi)) < 0)
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goto __nodev;
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rdev = rmidi->private_data;
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vmidi->midi[idx] = rmidi;
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strcpy(rmidi->name, "Virtual Raw MIDI");
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rdev->seq_mode = SNDRV_VIRMIDI_SEQ_DISPATCH;
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}
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strcpy(card->driver, "VirMIDI");
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strcpy(card->shortname, "VirMIDI");
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sprintf(card->longname, "Virtual MIDI Card %i", dev + 1);
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snd_card_set_dev(card, &devptr->dev);
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if ((err = snd_card_register(card)) == 0) {
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platform_set_drvdata(devptr, card);
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return 0;
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}
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__nodev:
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snd_card_free(card);
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return err;
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}
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static int snd_virmidi_remove(struct platform_device *devptr)
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{
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snd_card_free(platform_get_drvdata(devptr));
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platform_set_drvdata(devptr, NULL);
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return 0;
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}
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#define SND_VIRMIDI_DRIVER "snd_virmidi"
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static struct platform_driver snd_virmidi_driver = {
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.probe = snd_virmidi_probe,
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.remove = snd_virmidi_remove,
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.driver = {
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.name = SND_VIRMIDI_DRIVER
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},
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};
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static void __init_or_module snd_virmidi_unregister_all(void)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(devices); ++i)
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platform_device_unregister(devices[i]);
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platform_driver_unregister(&snd_virmidi_driver);
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}
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static int __init alsa_card_virmidi_init(void)
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{
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int i, cards, err;
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if ((err = platform_driver_register(&snd_virmidi_driver)) < 0)
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return err;
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cards = 0;
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for (i = 0; i < SNDRV_CARDS; i++) {
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struct platform_device *device;
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if (! enable[i])
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continue;
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device = platform_device_register_simple(SND_VIRMIDI_DRIVER,
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i, NULL, 0);
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if (IS_ERR(device))
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continue;
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if (!platform_get_drvdata(device)) {
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platform_device_unregister(device);
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continue;
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}
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devices[i] = device;
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cards++;
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}
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if (!cards) {
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#ifdef MODULE
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printk(KERN_ERR "Card-VirMIDI soundcard not found or device busy\n");
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#endif
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snd_virmidi_unregister_all();
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return -ENODEV;
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}
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return 0;
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}
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static void __exit alsa_card_virmidi_exit(void)
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{
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snd_virmidi_unregister_all();
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}
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module_init(alsa_card_virmidi_init)
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module_exit(alsa_card_virmidi_exit)
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