Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 314 insertions, 0 deletions

diff --git a/sound/drivers/opl3/opl3_seq.c b/sound/drivers/opl3/opl3_seq.c
new file mode 100644
index 000000000000..136964b844de
--- /dev/null
+++ b/sound/drivers/opl3/opl3_seq.c
@@ -0,0 +1,314 @@
+/*
+ *  Copyright (c) by Uros Bizjak <uros@kss-loka.si>
+ *
+ *  Midi Sequencer interface routines for OPL2/OPL3/OPL4 FM
+ *
+ *  OPL2/3 FM instrument loader:
+ *   alsa-tools/seq/sbiload/
+ *
+ *   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 "opl3_voice.h"
+#include <linux/init.h>
+#include <linux/moduleparam.h>
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Uros Bizjak <uros@kss-loka.si>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ALSA driver for OPL3 FM synth");
+
+int use_internal_drums = 0;
+module_param(use_internal_drums, bool, 0444);
+MODULE_PARM_DESC(use_internal_drums, "Enable internal OPL2/3 drums.");
+
+int snd_opl3_synth_use_inc(opl3_t * opl3)
+{
+        if (!try_module_get(opl3->card->module))
+                return -EFAULT;
+        return 0;
+
+}
+
+void snd_opl3_synth_use_dec(opl3_t * opl3)
+{
+        module_put(opl3->card->module);
+}
+
+int snd_opl3_synth_setup(opl3_t * opl3)
+{
+        int idx;
+
+        down(&opl3->access_mutex);
+        if (opl3->used) {
+                up(&opl3->access_mutex);
+                return -EBUSY;
+        }
+        opl3->used++;
+        up(&opl3->access_mutex);
+
+        snd_opl3_reset(opl3);
+
+        for (idx = 0; idx < MAX_OPL3_VOICES; idx++) {
+                opl3->voices[idx].state = SNDRV_OPL3_ST_OFF;
+                opl3->voices[idx].time = 0;
+                opl3->voices[idx].keyon_reg = 0x00;
+        }
+        opl3->use_time = 0;
+        opl3->connection_reg = 0x00;
+        if (opl3->hardware >= OPL3_HW_OPL3) {
+                /* Clear 4-op connections */
+                opl3->command(opl3, OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT,
+                                 opl3->connection_reg);
+                opl3->max_voices = MAX_OPL3_VOICES;
+        }
+        return 0;
+}
+
+void snd_opl3_synth_cleanup(opl3_t * opl3)
+{
+        unsigned long flags;
+
+        /* Stop system timer */
+        spin_lock_irqsave(&opl3->sys_timer_lock, flags);
+        if (opl3->sys_timer_status) {
+                del_timer(&opl3->tlist);
+                opl3->sys_timer_status = 0;
+        }
+        spin_unlock_irqrestore(&opl3->sys_timer_lock, flags);
+
+        snd_opl3_reset(opl3);
+        down(&opl3->access_mutex);
+        opl3->used--;
+        up(&opl3->access_mutex);
+}
+
+static int snd_opl3_synth_use(void *private_data, snd_seq_port_subscribe_t * info)
+{
+        opl3_t *opl3 = private_data;
+        int err;
+
+        if ((err = snd_opl3_synth_setup(opl3)) < 0)
+                return err;
+
+        if (use_internal_drums) {
+                /* Percussion mode */
+                opl3->voices[6].state = opl3->voices[7].state = 
+                        opl3->voices[8].state = SNDRV_OPL3_ST_NOT_AVAIL;
+                snd_opl3_load_drums(opl3);
+                opl3->drum_reg = OPL3_PERCUSSION_ENABLE;
+                opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, opl3->drum_reg);
+        } else {
+                opl3->drum_reg = 0x00;
+        }
+
+        if (info->sender.client != SNDRV_SEQ_CLIENT_SYSTEM) {
+                if ((err = snd_opl3_synth_use_inc(opl3)) < 0)
+                        return err;
+        }
+        opl3->synth_mode = SNDRV_OPL3_MODE_SEQ;
+        return 0;
+}
+
+static int snd_opl3_synth_unuse(void *private_data, snd_seq_port_subscribe_t * info)
+{
+        opl3_t *opl3 = private_data;
+
+        snd_opl3_synth_cleanup(opl3);
+
+        if (info->sender.client != SNDRV_SEQ_CLIENT_SYSTEM)
+                snd_opl3_synth_use_dec(opl3);
+        return 0;
+}
+
+/*
+ * MIDI emulation operators
+ */
+snd_midi_op_t opl3_ops = {
+        .note_on =              snd_opl3_note_on,
+        .note_off =             snd_opl3_note_off,
+        .key_press =            snd_opl3_key_press,
+        .note_terminate =       snd_opl3_terminate_note,
+        .control =              snd_opl3_control,
+        .nrpn =                 snd_opl3_nrpn,
+        .sysex =                snd_opl3_sysex,
+};
+
+static int snd_opl3_synth_event_input(snd_seq_event_t * ev, int direct,
+                                      void *private_data, int atomic, int hop)
+{
+        opl3_t *opl3 = private_data;
+
+        if (ev->type >= SNDRV_SEQ_EVENT_INSTR_BEGIN &&
+            ev->type <= SNDRV_SEQ_EVENT_INSTR_CHANGE) {
+                if (direct) {
+                        snd_seq_instr_event(&opl3->fm_ops, opl3->ilist, ev,
+                                            opl3->seq_client, atomic, hop);
+                }
+        } else {
+                snd_midi_process_event(&opl3_ops, ev, opl3->chset);
+        }
+        return 0;
+}
+
+/* ------------------------------ */
+
+static void snd_opl3_synth_free_port(void *private_data)
+{
+        opl3_t *opl3 = private_data;
+
+        snd_midi_channel_free_set(opl3->chset);
+}
+
+static int snd_opl3_synth_create_port(opl3_t * opl3)
+{
+        snd_seq_port_callback_t callbacks;
+        char name[32];
+        int voices, opl_ver;
+
+        voices = (opl3->hardware < OPL3_HW_OPL3) ?
+                MAX_OPL2_VOICES : MAX_OPL3_VOICES;
+        opl3->chset = snd_midi_channel_alloc_set(16);
+        if (opl3->chset == NULL)
+                return -ENOMEM;
+        opl3->chset->private_data = opl3;
+
+        memset(&callbacks, 0, sizeof(callbacks));
+        callbacks.owner = THIS_MODULE;
+        callbacks.use = snd_opl3_synth_use;
+        callbacks.unuse = snd_opl3_synth_unuse;
+        callbacks.event_input = snd_opl3_synth_event_input;
+        callbacks.private_free = snd_opl3_synth_free_port;
+        callbacks.private_data = opl3;
+
+        opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8;
+        sprintf(name, "OPL%i FM Port", opl_ver);
+
+        opl3->chset->client = opl3->seq_client;
+        opl3->chset->port = snd_seq_event_port_attach(opl3->seq_client, &callbacks,
+                                                      SNDRV_SEQ_PORT_CAP_WRITE |
+                                                      SNDRV_SEQ_PORT_CAP_SUBS_WRITE,
+                                                      SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |
+                                                      SNDRV_SEQ_PORT_TYPE_MIDI_GM |
+                                                      SNDRV_SEQ_PORT_TYPE_SYNTH,
+                                                      16, voices,
+                                                      name);
+        if (opl3->chset->port < 0) {
+                snd_midi_channel_free_set(opl3->chset);
+                return opl3->chset->port;
+        }
+        return 0;
+}
+
+/* ------------------------------ */
+
+static int snd_opl3_seq_new_device(snd_seq_device_t *dev)
+{
+        opl3_t *opl3;
+        int client;
+        snd_seq_client_callback_t callbacks;
+        snd_seq_client_info_t cinfo;
+        int opl_ver;
+
+        opl3 = *(opl3_t **)SNDRV_SEQ_DEVICE_ARGPTR(dev);
+        if (opl3 == NULL)
+                return -EINVAL;
+
+        spin_lock_init(&opl3->voice_lock);
+
+        opl3->seq_client = -1;
+
+        /* allocate new client */
+        memset(&callbacks, 0, sizeof(callbacks));
+        callbacks.private_data = opl3;
+        callbacks.allow_output = callbacks.allow_input = 1;
+        client = opl3->seq_client =
+            snd_seq_create_kernel_client(opl3->card, opl3->seq_dev_num, &callbacks);
+        if (client < 0)
+                return client;
+
+        /* change name of client */
+        memset(&cinfo, 0, sizeof(cinfo));
+        cinfo.client = client;
+        cinfo.type = KERNEL_CLIENT;
+        opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8;
+        sprintf(cinfo.name, "OPL%i FM synth", opl_ver);
+        snd_seq_kernel_client_ctl(client, SNDRV_SEQ_IOCTL_SET_CLIENT_INFO, &cinfo);
+
+        snd_opl3_synth_create_port(opl3);
+
+        /* initialize instrument list */
+        opl3->ilist = snd_seq_instr_list_new();
+        if (opl3->ilist == NULL) {
+                snd_seq_delete_kernel_client(client);
+                opl3->seq_client = -1;
+                return -ENOMEM;
+        }
+        opl3->ilist->flags = SNDRV_SEQ_INSTR_FLG_DIRECT;
+        snd_seq_fm_init(&opl3->fm_ops, NULL);
+
+        /* setup system timer */
+        init_timer(&opl3->tlist);
+        opl3->tlist.function = snd_opl3_timer_func;
+        opl3->tlist.data = (unsigned long) opl3;
+        spin_lock_init(&opl3->sys_timer_lock);
+        opl3->sys_timer_status = 0;
+
+#ifdef CONFIG_SND_SEQUENCER_OSS
+        snd_opl3_init_seq_oss(opl3, cinfo.name);
+#endif
+        return 0;
+}
+
+static int snd_opl3_seq_delete_device(snd_seq_device_t *dev)
+{
+        opl3_t *opl3;
+
+        opl3 = *(opl3_t **)SNDRV_SEQ_DEVICE_ARGPTR(dev);
+        if (opl3 == NULL)
+                return -EINVAL;
+
+#ifdef CONFIG_SND_SEQUENCER_OSS
+        snd_opl3_free_seq_oss(opl3);
+#endif
+        if (opl3->seq_client >= 0) {
+                snd_seq_delete_kernel_client(opl3->seq_client);
+                opl3->seq_client = -1;
+        }
+        if (opl3->ilist)
+                snd_seq_instr_list_free(&opl3->ilist);
+        return 0;
+}
+
+static int __init alsa_opl3_seq_init(void)
+{
+        static snd_seq_dev_ops_t ops =
+        {
+                snd_opl3_seq_new_device,
+                snd_opl3_seq_delete_device
+        };
+
+        return snd_seq_device_register_driver(SNDRV_SEQ_DEV_ID_OPL3, &ops,
+                                              sizeof(opl3_t*));
+}
+
+static void __exit alsa_opl3_seq_exit(void)
+{
+        snd_seq_device_unregister_driver(SNDRV_SEQ_DEV_ID_OPL3);
+}
+
+module_init(alsa_opl3_seq_init)
+module_exit(alsa_opl3_seq_exit)