624 строки
17 KiB
C
624 строки
17 KiB
C
/*
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* IWFFFF - AMD InterWave (tm) - Instrument routines
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* Copyright (c) 1999 by Jaroslav Kysela <perex@suse.cz>
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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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#include <sound/driver.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <sound/core.h>
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#include <sound/ainstr_iw.h>
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#include <sound/initval.h>
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#include <asm/uaccess.h>
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MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
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MODULE_DESCRIPTION("Advanced Linux Sound Architecture IWFFFF support.");
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MODULE_LICENSE("GPL");
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static unsigned int snd_seq_iwffff_size(unsigned int size, unsigned int format)
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{
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unsigned int result = size;
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if (format & IWFFFF_WAVE_16BIT)
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result <<= 1;
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if (format & IWFFFF_WAVE_STEREO)
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result <<= 1;
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return result;
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}
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static void snd_seq_iwffff_copy_lfo_from_stream(struct iwffff_lfo *fp,
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struct iwffff_xlfo *fx)
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{
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fp->freq = le16_to_cpu(fx->freq);
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fp->depth = le16_to_cpu(fx->depth);
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fp->sweep = le16_to_cpu(fx->sweep);
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fp->shape = fx->shape;
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fp->delay = fx->delay;
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}
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static int snd_seq_iwffff_copy_env_from_stream(__u32 req_stype,
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struct iwffff_layer *lp,
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struct iwffff_env *ep,
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struct iwffff_xenv *ex,
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char __user **data,
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long *len,
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gfp_t gfp_mask)
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{
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__u32 stype;
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struct iwffff_env_record *rp, *rp_last;
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struct iwffff_xenv_record rx;
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struct iwffff_env_point *pp;
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struct iwffff_xenv_point px;
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int points_size, idx;
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ep->flags = ex->flags;
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ep->mode = ex->mode;
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ep->index = ex->index;
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rp_last = NULL;
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while (1) {
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if (*len < (long)sizeof(__u32))
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return -EINVAL;
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if (copy_from_user(&stype, *data, sizeof(stype)))
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return -EFAULT;
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if (stype == IWFFFF_STRU_WAVE)
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return 0;
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if (req_stype != stype) {
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if (stype == IWFFFF_STRU_ENV_RECP ||
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stype == IWFFFF_STRU_ENV_RECV)
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return 0;
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}
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if (*len < (long)sizeof(rx))
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return -EINVAL;
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if (copy_from_user(&rx, *data, sizeof(rx)))
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return -EFAULT;
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*data += sizeof(rx);
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*len -= sizeof(rx);
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points_size = (le16_to_cpu(rx.nattack) + le16_to_cpu(rx.nrelease)) * 2 * sizeof(__u16);
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if (points_size > *len)
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return -EINVAL;
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rp = kzalloc(sizeof(*rp) + points_size, gfp_mask);
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if (rp == NULL)
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return -ENOMEM;
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rp->nattack = le16_to_cpu(rx.nattack);
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rp->nrelease = le16_to_cpu(rx.nrelease);
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rp->sustain_offset = le16_to_cpu(rx.sustain_offset);
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rp->sustain_rate = le16_to_cpu(rx.sustain_rate);
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rp->release_rate = le16_to_cpu(rx.release_rate);
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rp->hirange = rx.hirange;
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pp = (struct iwffff_env_point *)(rp + 1);
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for (idx = 0; idx < rp->nattack + rp->nrelease; idx++) {
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if (copy_from_user(&px, *data, sizeof(px)))
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return -EFAULT;
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*data += sizeof(px);
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*len -= sizeof(px);
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pp->offset = le16_to_cpu(px.offset);
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pp->rate = le16_to_cpu(px.rate);
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}
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if (ep->record == NULL) {
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ep->record = rp;
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} else {
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rp_last = rp;
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}
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rp_last = rp;
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}
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return 0;
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}
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static int snd_seq_iwffff_copy_wave_from_stream(struct snd_iwffff_ops *ops,
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struct iwffff_layer *lp,
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char __user **data,
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long *len,
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int atomic)
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{
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struct iwffff_wave *wp, *prev;
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struct iwffff_xwave xp;
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int err;
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gfp_t gfp_mask;
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unsigned int real_size;
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gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL;
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if (*len < (long)sizeof(xp))
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return -EINVAL;
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if (copy_from_user(&xp, *data, sizeof(xp)))
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return -EFAULT;
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*data += sizeof(xp);
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*len -= sizeof(xp);
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wp = kzalloc(sizeof(*wp), gfp_mask);
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if (wp == NULL)
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return -ENOMEM;
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wp->share_id[0] = le32_to_cpu(xp.share_id[0]);
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wp->share_id[1] = le32_to_cpu(xp.share_id[1]);
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wp->share_id[2] = le32_to_cpu(xp.share_id[2]);
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wp->share_id[3] = le32_to_cpu(xp.share_id[3]);
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wp->format = le32_to_cpu(xp.format);
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wp->address.memory = le32_to_cpu(xp.offset);
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wp->size = le32_to_cpu(xp.size);
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wp->start = le32_to_cpu(xp.start);
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wp->loop_start = le32_to_cpu(xp.loop_start);
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wp->loop_end = le32_to_cpu(xp.loop_end);
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wp->loop_repeat = le16_to_cpu(xp.loop_repeat);
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wp->sample_ratio = le32_to_cpu(xp.sample_ratio);
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wp->attenuation = xp.attenuation;
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wp->low_note = xp.low_note;
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wp->high_note = xp.high_note;
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real_size = snd_seq_iwffff_size(wp->size, wp->format);
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if (!(wp->format & IWFFFF_WAVE_ROM)) {
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if ((long)real_size > *len) {
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kfree(wp);
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return -ENOMEM;
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}
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}
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if (ops->put_sample) {
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err = ops->put_sample(ops->private_data, wp,
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*data, real_size, atomic);
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if (err < 0) {
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kfree(wp);
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return err;
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}
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}
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if (!(wp->format & IWFFFF_WAVE_ROM)) {
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*data += real_size;
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*len -= real_size;
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}
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prev = lp->wave;
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if (prev) {
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while (prev->next) prev = prev->next;
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prev->next = wp;
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} else {
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lp->wave = wp;
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}
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return 0;
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}
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static void snd_seq_iwffff_env_free(struct snd_iwffff_ops *ops,
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struct iwffff_env *env,
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int atomic)
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{
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struct iwffff_env_record *rec;
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while ((rec = env->record) != NULL) {
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env->record = rec->next;
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kfree(rec);
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}
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}
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static void snd_seq_iwffff_wave_free(struct snd_iwffff_ops *ops,
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struct iwffff_wave *wave,
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int atomic)
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{
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if (ops->remove_sample)
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ops->remove_sample(ops->private_data, wave, atomic);
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kfree(wave);
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}
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static void snd_seq_iwffff_instr_free(struct snd_iwffff_ops *ops,
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struct iwffff_instrument *ip,
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int atomic)
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{
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struct iwffff_layer *layer;
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struct iwffff_wave *wave;
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while ((layer = ip->layer) != NULL) {
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ip->layer = layer->next;
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snd_seq_iwffff_env_free(ops, &layer->penv, atomic);
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snd_seq_iwffff_env_free(ops, &layer->venv, atomic);
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while ((wave = layer->wave) != NULL) {
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layer->wave = wave->next;
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snd_seq_iwffff_wave_free(ops, wave, atomic);
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}
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kfree(layer);
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}
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}
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static int snd_seq_iwffff_put(void *private_data, struct snd_seq_kinstr *instr,
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char __user *instr_data, long len, int atomic,
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int cmd)
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{
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struct snd_iwffff_ops *ops = private_data;
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struct iwffff_instrument *ip;
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struct iwffff_xinstrument ix;
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struct iwffff_layer *lp, *prev_lp;
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struct iwffff_xlayer lx;
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int err;
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gfp_t gfp_mask;
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if (cmd != SNDRV_SEQ_INSTR_PUT_CMD_CREATE)
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return -EINVAL;
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gfp_mask = atomic ? GFP_ATOMIC : GFP_KERNEL;
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/* copy instrument data */
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if (len < (long)sizeof(ix))
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return -EINVAL;
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if (copy_from_user(&ix, instr_data, sizeof(ix)))
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return -EFAULT;
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if (ix.stype != IWFFFF_STRU_INSTR)
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return -EINVAL;
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instr_data += sizeof(ix);
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len -= sizeof(ix);
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ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
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ip->exclusion = le16_to_cpu(ix.exclusion);
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ip->layer_type = le16_to_cpu(ix.layer_type);
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ip->exclusion_group = le16_to_cpu(ix.exclusion_group);
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ip->effect1 = ix.effect1;
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ip->effect1_depth = ix.effect1_depth;
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ip->effect2 = ix.effect2;
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ip->effect2_depth = ix.effect2_depth;
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/* copy layers */
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prev_lp = NULL;
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while (len > 0) {
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if (len < (long)sizeof(struct iwffff_xlayer)) {
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snd_seq_iwffff_instr_free(ops, ip, atomic);
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return -EINVAL;
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}
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if (copy_from_user(&lx, instr_data, sizeof(lx)))
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return -EFAULT;
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instr_data += sizeof(lx);
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len -= sizeof(lx);
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if (lx.stype != IWFFFF_STRU_LAYER) {
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snd_seq_iwffff_instr_free(ops, ip, atomic);
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return -EINVAL;
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}
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lp = kzalloc(sizeof(*lp), gfp_mask);
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if (lp == NULL) {
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snd_seq_iwffff_instr_free(ops, ip, atomic);
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return -ENOMEM;
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}
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if (prev_lp) {
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prev_lp->next = lp;
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} else {
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ip->layer = lp;
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}
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prev_lp = lp;
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lp->flags = lx.flags;
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lp->velocity_mode = lx.velocity_mode;
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lp->layer_event = lx.layer_event;
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lp->low_range = lx.low_range;
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lp->high_range = lx.high_range;
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lp->pan = lx.pan;
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lp->pan_freq_scale = lx.pan_freq_scale;
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lp->attenuation = lx.attenuation;
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snd_seq_iwffff_copy_lfo_from_stream(&lp->tremolo, &lx.tremolo);
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snd_seq_iwffff_copy_lfo_from_stream(&lp->vibrato, &lx.vibrato);
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lp->freq_scale = le16_to_cpu(lx.freq_scale);
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lp->freq_center = lx.freq_center;
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err = snd_seq_iwffff_copy_env_from_stream(IWFFFF_STRU_ENV_RECP,
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lp,
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&lp->penv, &lx.penv,
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&instr_data, &len,
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gfp_mask);
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if (err < 0) {
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snd_seq_iwffff_instr_free(ops, ip, atomic);
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return err;
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}
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err = snd_seq_iwffff_copy_env_from_stream(IWFFFF_STRU_ENV_RECV,
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lp,
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&lp->venv, &lx.venv,
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&instr_data, &len,
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gfp_mask);
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if (err < 0) {
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snd_seq_iwffff_instr_free(ops, ip, atomic);
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return err;
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}
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while (len > (long)sizeof(__u32)) {
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__u32 stype;
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if (copy_from_user(&stype, instr_data, sizeof(stype)))
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return -EFAULT;
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if (stype != IWFFFF_STRU_WAVE)
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break;
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err = snd_seq_iwffff_copy_wave_from_stream(ops,
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lp,
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&instr_data,
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&len,
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atomic);
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if (err < 0) {
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snd_seq_iwffff_instr_free(ops, ip, atomic);
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return err;
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}
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}
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}
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return 0;
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}
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static void snd_seq_iwffff_copy_lfo_to_stream(struct iwffff_xlfo *fx,
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struct iwffff_lfo *fp)
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{
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fx->freq = cpu_to_le16(fp->freq);
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fx->depth = cpu_to_le16(fp->depth);
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fx->sweep = cpu_to_le16(fp->sweep);
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fp->shape = fx->shape;
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fp->delay = fx->delay;
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}
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static int snd_seq_iwffff_copy_env_to_stream(__u32 req_stype,
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struct iwffff_layer *lp,
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struct iwffff_xenv *ex,
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struct iwffff_env *ep,
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char __user **data,
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long *len)
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{
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struct iwffff_env_record *rp;
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struct iwffff_xenv_record rx;
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struct iwffff_env_point *pp;
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struct iwffff_xenv_point px;
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int points_size, idx;
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ex->flags = ep->flags;
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ex->mode = ep->mode;
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ex->index = ep->index;
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for (rp = ep->record; rp; rp = rp->next) {
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if (*len < (long)sizeof(rx))
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return -ENOMEM;
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memset(&rx, 0, sizeof(rx));
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rx.stype = req_stype;
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rx.nattack = cpu_to_le16(rp->nattack);
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rx.nrelease = cpu_to_le16(rp->nrelease);
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rx.sustain_offset = cpu_to_le16(rp->sustain_offset);
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rx.sustain_rate = cpu_to_le16(rp->sustain_rate);
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rx.release_rate = cpu_to_le16(rp->release_rate);
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rx.hirange = cpu_to_le16(rp->hirange);
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if (copy_to_user(*data, &rx, sizeof(rx)))
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return -EFAULT;
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*data += sizeof(rx);
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*len -= sizeof(rx);
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points_size = (rp->nattack + rp->nrelease) * 2 * sizeof(__u16);
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if (*len < points_size)
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return -ENOMEM;
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pp = (struct iwffff_env_point *)(rp + 1);
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for (idx = 0; idx < rp->nattack + rp->nrelease; idx++) {
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px.offset = cpu_to_le16(pp->offset);
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px.rate = cpu_to_le16(pp->rate);
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if (copy_to_user(*data, &px, sizeof(px)))
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return -EFAULT;
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*data += sizeof(px);
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*len -= sizeof(px);
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}
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}
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return 0;
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}
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static int snd_seq_iwffff_copy_wave_to_stream(struct snd_iwffff_ops *ops,
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struct iwffff_layer *lp,
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char __user **data,
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long *len,
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int atomic)
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{
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struct iwffff_wave *wp;
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struct iwffff_xwave xp;
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int err;
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unsigned int real_size;
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for (wp = lp->wave; wp; wp = wp->next) {
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if (*len < (long)sizeof(xp))
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return -ENOMEM;
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memset(&xp, 0, sizeof(xp));
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xp.stype = IWFFFF_STRU_WAVE;
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xp.share_id[0] = cpu_to_le32(wp->share_id[0]);
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xp.share_id[1] = cpu_to_le32(wp->share_id[1]);
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xp.share_id[2] = cpu_to_le32(wp->share_id[2]);
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xp.share_id[3] = cpu_to_le32(wp->share_id[3]);
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xp.format = cpu_to_le32(wp->format);
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if (wp->format & IWFFFF_WAVE_ROM)
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xp.offset = cpu_to_le32(wp->address.memory);
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xp.size = cpu_to_le32(wp->size);
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xp.start = cpu_to_le32(wp->start);
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xp.loop_start = cpu_to_le32(wp->loop_start);
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xp.loop_end = cpu_to_le32(wp->loop_end);
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xp.loop_repeat = cpu_to_le32(wp->loop_repeat);
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xp.sample_ratio = cpu_to_le32(wp->sample_ratio);
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xp.attenuation = wp->attenuation;
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xp.low_note = wp->low_note;
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xp.high_note = wp->high_note;
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if (copy_to_user(*data, &xp, sizeof(xp)))
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return -EFAULT;
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*data += sizeof(xp);
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*len -= sizeof(xp);
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real_size = snd_seq_iwffff_size(wp->size, wp->format);
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if (!(wp->format & IWFFFF_WAVE_ROM)) {
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if (*len < (long)real_size)
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return -ENOMEM;
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}
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if (ops->get_sample) {
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err = ops->get_sample(ops->private_data, wp,
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*data, real_size, atomic);
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if (err < 0)
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return err;
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}
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if (!(wp->format & IWFFFF_WAVE_ROM)) {
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*data += real_size;
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*len -= real_size;
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}
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}
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return 0;
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}
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static int snd_seq_iwffff_get(void *private_data, struct snd_seq_kinstr *instr,
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char __user *instr_data, long len, int atomic, int cmd)
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{
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struct snd_iwffff_ops *ops = private_data;
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struct iwffff_instrument *ip;
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struct iwffff_xinstrument ix;
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struct iwffff_layer *lp;
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struct iwffff_xlayer lx;
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char __user *layer_instr_data;
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int err;
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if (cmd != SNDRV_SEQ_INSTR_GET_CMD_FULL)
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return -EINVAL;
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if (len < (long)sizeof(ix))
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return -ENOMEM;
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memset(&ix, 0, sizeof(ix));
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ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
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ix.stype = IWFFFF_STRU_INSTR;
|
|
ix.exclusion = cpu_to_le16(ip->exclusion);
|
|
ix.layer_type = cpu_to_le16(ip->layer_type);
|
|
ix.exclusion_group = cpu_to_le16(ip->exclusion_group);
|
|
ix.effect1 = cpu_to_le16(ip->effect1);
|
|
ix.effect1_depth = cpu_to_le16(ip->effect1_depth);
|
|
ix.effect2 = ip->effect2;
|
|
ix.effect2_depth = ip->effect2_depth;
|
|
if (copy_to_user(instr_data, &ix, sizeof(ix)))
|
|
return -EFAULT;
|
|
instr_data += sizeof(ix);
|
|
len -= sizeof(ix);
|
|
for (lp = ip->layer; lp; lp = lp->next) {
|
|
if (len < (long)sizeof(lx))
|
|
return -ENOMEM;
|
|
memset(&lx, 0, sizeof(lx));
|
|
lx.stype = IWFFFF_STRU_LAYER;
|
|
lx.flags = lp->flags;
|
|
lx.velocity_mode = lp->velocity_mode;
|
|
lx.layer_event = lp->layer_event;
|
|
lx.low_range = lp->low_range;
|
|
lx.high_range = lp->high_range;
|
|
lx.pan = lp->pan;
|
|
lx.pan_freq_scale = lp->pan_freq_scale;
|
|
lx.attenuation = lp->attenuation;
|
|
snd_seq_iwffff_copy_lfo_to_stream(&lx.tremolo, &lp->tremolo);
|
|
snd_seq_iwffff_copy_lfo_to_stream(&lx.vibrato, &lp->vibrato);
|
|
layer_instr_data = instr_data;
|
|
instr_data += sizeof(lx);
|
|
len -= sizeof(lx);
|
|
err = snd_seq_iwffff_copy_env_to_stream(IWFFFF_STRU_ENV_RECP,
|
|
lp,
|
|
&lx.penv, &lp->penv,
|
|
&instr_data, &len);
|
|
if (err < 0)
|
|
return err;
|
|
err = snd_seq_iwffff_copy_env_to_stream(IWFFFF_STRU_ENV_RECV,
|
|
lp,
|
|
&lx.venv, &lp->venv,
|
|
&instr_data, &len);
|
|
if (err < 0)
|
|
return err;
|
|
/* layer structure updating is now finished */
|
|
if (copy_to_user(layer_instr_data, &lx, sizeof(lx)))
|
|
return -EFAULT;
|
|
err = snd_seq_iwffff_copy_wave_to_stream(ops,
|
|
lp,
|
|
&instr_data,
|
|
&len,
|
|
atomic);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static long snd_seq_iwffff_env_size_in_stream(struct iwffff_env *ep)
|
|
{
|
|
long result = 0;
|
|
struct iwffff_env_record *rp;
|
|
|
|
for (rp = ep->record; rp; rp = rp->next) {
|
|
result += sizeof(struct iwffff_xenv_record);
|
|
result += (rp->nattack + rp->nrelease) * 2 * sizeof(__u16);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static long snd_seq_iwffff_wave_size_in_stream(struct iwffff_layer *lp)
|
|
{
|
|
long result = 0;
|
|
struct iwffff_wave *wp;
|
|
|
|
for (wp = lp->wave; wp; wp = wp->next) {
|
|
result += sizeof(struct iwffff_xwave);
|
|
if (!(wp->format & IWFFFF_WAVE_ROM))
|
|
result += wp->size;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
static int snd_seq_iwffff_get_size(void *private_data, struct snd_seq_kinstr *instr,
|
|
long *size)
|
|
{
|
|
long result;
|
|
struct iwffff_instrument *ip;
|
|
struct iwffff_layer *lp;
|
|
|
|
*size = 0;
|
|
ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
|
|
result = sizeof(struct iwffff_xinstrument);
|
|
for (lp = ip->layer; lp; lp = lp->next) {
|
|
result += sizeof(struct iwffff_xlayer);
|
|
result += snd_seq_iwffff_env_size_in_stream(&lp->penv);
|
|
result += snd_seq_iwffff_env_size_in_stream(&lp->venv);
|
|
result += snd_seq_iwffff_wave_size_in_stream(lp);
|
|
}
|
|
*size = result;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_seq_iwffff_remove(void *private_data,
|
|
struct snd_seq_kinstr *instr,
|
|
int atomic)
|
|
{
|
|
struct snd_iwffff_ops *ops = private_data;
|
|
struct iwffff_instrument *ip;
|
|
|
|
ip = (struct iwffff_instrument *)KINSTR_DATA(instr);
|
|
snd_seq_iwffff_instr_free(ops, ip, atomic);
|
|
return 0;
|
|
}
|
|
|
|
static void snd_seq_iwffff_notify(void *private_data,
|
|
struct snd_seq_kinstr *instr,
|
|
int what)
|
|
{
|
|
struct snd_iwffff_ops *ops = private_data;
|
|
|
|
if (ops->notify)
|
|
ops->notify(ops->private_data, instr, what);
|
|
}
|
|
|
|
int snd_seq_iwffff_init(struct snd_iwffff_ops *ops,
|
|
void *private_data,
|
|
struct snd_seq_kinstr_ops *next)
|
|
{
|
|
memset(ops, 0, sizeof(*ops));
|
|
ops->private_data = private_data;
|
|
ops->kops.private_data = ops;
|
|
ops->kops.add_len = sizeof(struct iwffff_instrument);
|
|
ops->kops.instr_type = SNDRV_SEQ_INSTR_ID_INTERWAVE;
|
|
ops->kops.put = snd_seq_iwffff_put;
|
|
ops->kops.get = snd_seq_iwffff_get;
|
|
ops->kops.get_size = snd_seq_iwffff_get_size;
|
|
ops->kops.remove = snd_seq_iwffff_remove;
|
|
ops->kops.notify = snd_seq_iwffff_notify;
|
|
ops->kops.next = next;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Init part
|
|
*/
|
|
|
|
static int __init alsa_ainstr_iw_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void __exit alsa_ainstr_iw_exit(void)
|
|
{
|
|
}
|
|
|
|
module_init(alsa_ainstr_iw_init)
|
|
module_exit(alsa_ainstr_iw_exit)
|
|
|
|
EXPORT_SYMBOL(snd_seq_iwffff_init);
|