/*
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* OSS compatible sequencer driver
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*
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* OSS compatible i/o control
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*
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* Copyright (C) 1998,99 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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#include "seq_oss_device.h"
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#include "seq_oss_readq.h"
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#include "seq_oss_writeq.h"
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#include "seq_oss_timer.h"
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#include "seq_oss_synth.h"
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#include "seq_oss_midi.h"
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#include "seq_oss_event.h"
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static int snd_seq_oss_synth_info_user(struct seq_oss_devinfo *dp, void __user *arg)
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{
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struct synth_info info;
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if (copy_from_user(&info, arg, sizeof(info)))
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return -EFAULT;
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if (snd_seq_oss_synth_make_info(dp, info.device, &info) < 0)
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return -EINVAL;
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if (copy_to_user(arg, &info, sizeof(info)))
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return -EFAULT;
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return 0;
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}
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static int snd_seq_oss_midi_info_user(struct seq_oss_devinfo *dp, void __user *arg)
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{
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struct midi_info info;
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if (copy_from_user(&info, arg, sizeof(info)))
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return -EFAULT;
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if (snd_seq_oss_midi_make_info(dp, info.device, &info) < 0)
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return -EINVAL;
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if (copy_to_user(arg, &info, sizeof(info)))
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return -EFAULT;
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return 0;
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}
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static int snd_seq_oss_oob_user(struct seq_oss_devinfo *dp, void __user *arg)
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{
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unsigned char ev[8];
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struct snd_seq_event tmpev;
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if (copy_from_user(ev, arg, 8))
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return -EFAULT;
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memset(&tmpev, 0, sizeof(tmpev));
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snd_seq_oss_fill_addr(dp, &tmpev, dp->addr.client, dp->addr.port);
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tmpev.time.tick = 0;
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if (! snd_seq_oss_process_event(dp, (union evrec *)ev, &tmpev)) {
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snd_seq_oss_dispatch(dp, &tmpev, 0, 0);
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}
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return 0;
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}
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int
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snd_seq_oss_ioctl(struct seq_oss_devinfo *dp, unsigned int cmd, unsigned long carg)
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{
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int dev, val;
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void __user *arg = (void __user *)carg;
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int __user *p = arg;
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switch (cmd) {
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case SNDCTL_TMR_TIMEBASE:
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case SNDCTL_TMR_TEMPO:
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case SNDCTL_TMR_START:
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case SNDCTL_TMR_STOP:
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case SNDCTL_TMR_CONTINUE:
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case SNDCTL_TMR_METRONOME:
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case SNDCTL_TMR_SOURCE:
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case SNDCTL_TMR_SELECT:
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case SNDCTL_SEQ_CTRLRATE:
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return snd_seq_oss_timer_ioctl(dp->timer, cmd, arg);
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case SNDCTL_SEQ_PANIC:
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snd_seq_oss_reset(dp);
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return -EINVAL;
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case SNDCTL_SEQ_SYNC:
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if (! is_write_mode(dp->file_mode) || dp->writeq == NULL)
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return 0;
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while (snd_seq_oss_writeq_sync(dp->writeq))
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;
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if (signal_pending(current))
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return -ERESTARTSYS;
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return 0;
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case SNDCTL_SEQ_RESET:
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snd_seq_oss_reset(dp);
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return 0;
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case SNDCTL_SEQ_TESTMIDI:
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if (get_user(dev, p))
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return -EFAULT;
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return snd_seq_oss_midi_open(dp, dev, dp->file_mode);
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case SNDCTL_SEQ_GETINCOUNT:
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if (dp->readq == NULL || ! is_read_mode(dp->file_mode))
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return 0;
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return put_user(dp->readq->qlen, p) ? -EFAULT : 0;
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case SNDCTL_SEQ_GETOUTCOUNT:
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if (! is_write_mode(dp->file_mode) || dp->writeq == NULL)
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return 0;
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return put_user(snd_seq_oss_writeq_get_free_size(dp->writeq), p) ? -EFAULT : 0;
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case SNDCTL_SEQ_GETTIME:
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return put_user(snd_seq_oss_timer_cur_tick(dp->timer), p) ? -EFAULT : 0;
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case SNDCTL_SEQ_RESETSAMPLES:
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if (get_user(dev, p))
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return -EFAULT;
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return snd_seq_oss_synth_ioctl(dp, dev, cmd, carg);
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case SNDCTL_SEQ_NRSYNTHS:
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return put_user(dp->max_synthdev, p) ? -EFAULT : 0;
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case SNDCTL_SEQ_NRMIDIS:
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return put_user(dp->max_mididev, p) ? -EFAULT : 0;
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case SNDCTL_SYNTH_MEMAVL:
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if (get_user(dev, p))
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return -EFAULT;
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val = snd_seq_oss_synth_ioctl(dp, dev, cmd, carg);
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return put_user(val, p) ? -EFAULT : 0;
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case SNDCTL_FM_4OP_ENABLE:
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if (get_user(dev, p))
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return -EFAULT;
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snd_seq_oss_synth_ioctl(dp, dev, cmd, carg);
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return 0;
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case SNDCTL_SYNTH_INFO:
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case SNDCTL_SYNTH_ID:
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return snd_seq_oss_synth_info_user(dp, arg);
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case SNDCTL_SEQ_OUTOFBAND:
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return snd_seq_oss_oob_user(dp, arg);
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case SNDCTL_MIDI_INFO:
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return snd_seq_oss_midi_info_user(dp, arg);
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case SNDCTL_SEQ_THRESHOLD:
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if (! is_write_mode(dp->file_mode))
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return 0;
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if (get_user(val, p))
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return -EFAULT;
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if (val < 1)
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val = 1;
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if (val >= dp->writeq->maxlen)
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val = dp->writeq->maxlen - 1;
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snd_seq_oss_writeq_set_output(dp->writeq, val);
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return 0;
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case SNDCTL_MIDI_PRETIME:
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if (dp->readq == NULL || !is_read_mode(dp->file_mode))
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return 0;
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if (get_user(val, p))
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return -EFAULT;
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if (val <= 0)
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val = -1;
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else
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val = (HZ * val) / 10;
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dp->readq->pre_event_timeout = val;
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return put_user(val, p) ? -EFAULT : 0;
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default:
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if (! is_write_mode(dp->file_mode))
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return -EIO;
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return snd_seq_oss_synth_ioctl(dp, 0, cmd, carg);
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}
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return 0;
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}
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