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