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Diffstat (limited to 'sound/core/seq/instr/ainstr_simple.c')
-rw-r--r--sound/core/seq/instr/ainstr_simple.c215
1 files changed, 215 insertions, 0 deletions
diff --git a/sound/core/seq/instr/ainstr_simple.c b/sound/core/seq/instr/ainstr_simple.c
new file mode 100644
index 00000000000..6183d215103
--- /dev/null
+++ b/sound/core/seq/instr/ainstr_simple.c
@@ -0,0 +1,215 @@
+/*
+ * Simple (MOD player) - 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/sched.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/ainstr_simple.h>
+#include <sound/initval.h>
+#include <asm/uaccess.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_DESCRIPTION("Advanced Linux Sound Architecture Simple Instrument support.");
+MODULE_LICENSE("GPL");
+
+static unsigned int snd_seq_simple_size(unsigned int size, unsigned int format)
+{
+ unsigned int result = size;
+
+ if (format & SIMPLE_WAVE_16BIT)
+ result <<= 1;
+ if (format & SIMPLE_WAVE_STEREO)
+ result <<= 1;
+ return result;
+}
+
+static void snd_seq_simple_instr_free(snd_simple_ops_t *ops,
+ simple_instrument_t *ip,
+ int atomic)
+{
+ if (ops->remove_sample)
+ ops->remove_sample(ops->private_data, ip, atomic);
+}
+
+static int snd_seq_simple_put(void *private_data, snd_seq_kinstr_t *instr,
+ char __user *instr_data, long len,
+ int atomic, int cmd)
+{
+ snd_simple_ops_t *ops = (snd_simple_ops_t *)private_data;
+ simple_instrument_t *ip;
+ simple_xinstrument_t ix;
+ int err, gfp_mask;
+ unsigned int real_size;
+
+ 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 != SIMPLE_STRU_INSTR)
+ return -EINVAL;
+ instr_data += sizeof(ix);
+ len -= sizeof(ix);
+ ip = (simple_instrument_t *)KINSTR_DATA(instr);
+ ip->share_id[0] = le32_to_cpu(ix.share_id[0]);
+ ip->share_id[1] = le32_to_cpu(ix.share_id[1]);
+ ip->share_id[2] = le32_to_cpu(ix.share_id[2]);
+ ip->share_id[3] = le32_to_cpu(ix.share_id[3]);
+ ip->format = le32_to_cpu(ix.format);
+ ip->size = le32_to_cpu(ix.size);
+ ip->start = le32_to_cpu(ix.start);
+ ip->loop_start = le32_to_cpu(ix.loop_start);
+ ip->loop_end = le32_to_cpu(ix.loop_end);
+ ip->loop_repeat = le16_to_cpu(ix.loop_repeat);
+ ip->effect1 = ix.effect1;
+ ip->effect1_depth = ix.effect1_depth;
+ ip->effect2 = ix.effect2;
+ ip->effect2_depth = ix.effect2_depth;
+ real_size = snd_seq_simple_size(ip->size, ip->format);
+ if (len < (long)real_size)
+ return -EINVAL;
+ if (ops->put_sample) {
+ err = ops->put_sample(ops->private_data, ip,
+ instr_data, real_size, atomic);
+ if (err < 0)
+ return err;
+ }
+ return 0;
+}
+
+static int snd_seq_simple_get(void *private_data, snd_seq_kinstr_t *instr,
+ char __user *instr_data, long len,
+ int atomic, int cmd)
+{
+ snd_simple_ops_t *ops = (snd_simple_ops_t *)private_data;
+ simple_instrument_t *ip;
+ simple_xinstrument_t ix;
+ int err;
+ unsigned int real_size;
+
+ if (cmd != SNDRV_SEQ_INSTR_GET_CMD_FULL)
+ return -EINVAL;
+ if (len < (long)sizeof(ix))
+ return -ENOMEM;
+ memset(&ix, 0, sizeof(ix));
+ ip = (simple_instrument_t *)KINSTR_DATA(instr);
+ ix.stype = SIMPLE_STRU_INSTR;
+ ix.share_id[0] = cpu_to_le32(ip->share_id[0]);
+ ix.share_id[1] = cpu_to_le32(ip->share_id[1]);
+ ix.share_id[2] = cpu_to_le32(ip->share_id[2]);
+ ix.share_id[3] = cpu_to_le32(ip->share_id[3]);
+ ix.format = cpu_to_le32(ip->format);
+ ix.size = cpu_to_le32(ip->size);
+ ix.start = cpu_to_le32(ip->start);
+ ix.loop_start = cpu_to_le32(ip->loop_start);
+ ix.loop_end = cpu_to_le32(ip->loop_end);
+ ix.loop_repeat = cpu_to_le32(ip->loop_repeat);
+ 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);
+ real_size = snd_seq_simple_size(ip->size, ip->format);
+ if (len < (long)real_size)
+ return -ENOMEM;
+ if (ops->get_sample) {
+ err = ops->get_sample(ops->private_data, ip,
+ instr_data, real_size, atomic);
+ if (err < 0)
+ return err;
+ }
+ return 0;
+}
+
+static int snd_seq_simple_get_size(void *private_data, snd_seq_kinstr_t *instr,
+ long *size)
+{
+ simple_instrument_t *ip;
+
+ ip = (simple_instrument_t *)KINSTR_DATA(instr);
+ *size = sizeof(simple_xinstrument_t) + snd_seq_simple_size(ip->size, ip->format);
+ return 0;
+}
+
+static int snd_seq_simple_remove(void *private_data,
+ snd_seq_kinstr_t *instr,
+ int atomic)
+{
+ snd_simple_ops_t *ops = (snd_simple_ops_t *)private_data;
+ simple_instrument_t *ip;
+
+ ip = (simple_instrument_t *)KINSTR_DATA(instr);
+ snd_seq_simple_instr_free(ops, ip, atomic);
+ return 0;
+}
+
+static void snd_seq_simple_notify(void *private_data,
+ snd_seq_kinstr_t *instr,
+ int what)
+{
+ snd_simple_ops_t *ops = (snd_simple_ops_t *)private_data;
+
+ if (ops->notify)
+ ops->notify(ops->private_data, instr, what);
+}
+
+int snd_seq_simple_init(snd_simple_ops_t *ops,
+ void *private_data,
+ snd_seq_kinstr_ops_t *next)
+{
+ memset(ops, 0, sizeof(*ops));
+ ops->private_data = private_data;
+ ops->kops.private_data = ops;
+ ops->kops.add_len = sizeof(simple_instrument_t);
+ ops->kops.instr_type = SNDRV_SEQ_INSTR_ID_SIMPLE;
+ ops->kops.put = snd_seq_simple_put;
+ ops->kops.get = snd_seq_simple_get;
+ ops->kops.get_size = snd_seq_simple_get_size;
+ ops->kops.remove = snd_seq_simple_remove;
+ ops->kops.notify = snd_seq_simple_notify;
+ ops->kops.next = next;
+ return 0;
+}
+
+/*
+ * Init part
+ */
+
+static int __init alsa_ainstr_simple_init(void)
+{
+ return 0;
+}
+
+static void __exit alsa_ainstr_simple_exit(void)
+{
+}
+
+module_init(alsa_ainstr_simple_init)
+module_exit(alsa_ainstr_simple_exit)
+
+EXPORT_SYMBOL(snd_seq_simple_init);
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