Linux-2.6.12-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!
diff --git a/sound/drivers/opl3/opl3_synth.c b/sound/drivers/opl3/opl3_synth.c
new file mode 100644
index 0000000..04f9f95
--- /dev/null
+++ b/sound/drivers/opl3/opl3_synth.c
@@ -0,0 +1,447 @@
+/*
+ * Copyright (c) by Uros Bizjak <uros@kss-loka.si>
+ *
+ * Routines for OPL2/OPL3/OPL4 control
+ *
+ * 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/opl3.h>
+#include <sound/asound_fm.h>
+
+/*
+ * There is 18 possible 2 OP voices
+ * (9 in the left and 9 in the right).
+ * The first OP is the modulator and 2nd is the carrier.
+ *
+ * The first three voices in the both sides may be connected
+ * with another voice to a 4 OP voice. For example voice 0
+ * can be connected with voice 3. The operators of voice 3 are
+ * used as operators 3 and 4 of the new 4 OP voice.
+ * In this case the 2 OP voice number 0 is the 'first half' and
+ * voice 3 is the second.
+ */
+
+
+/*
+ * Register offset table for OPL2/3 voices,
+ * OPL2 / one OPL3 register array side only
+ */
+
+char snd_opl3_regmap[MAX_OPL2_VOICES][4] =
+{
+/* OP1 OP2 OP3 OP4 */
+/* ------------------------ */
+ { 0x00, 0x03, 0x08, 0x0b },
+ { 0x01, 0x04, 0x09, 0x0c },
+ { 0x02, 0x05, 0x0a, 0x0d },
+
+ { 0x08, 0x0b, 0x00, 0x00 },
+ { 0x09, 0x0c, 0x00, 0x00 },
+ { 0x0a, 0x0d, 0x00, 0x00 },
+
+ { 0x10, 0x13, 0x00, 0x00 }, /* used by percussive voices */
+ { 0x11, 0x14, 0x00, 0x00 }, /* if the percussive mode */
+ { 0x12, 0x15, 0x00, 0x00 } /* is selected (only left reg block) */
+};
+
+/*
+ * prototypes
+ */
+static int snd_opl3_play_note(opl3_t * opl3, snd_dm_fm_note_t * note);
+static int snd_opl3_set_voice(opl3_t * opl3, snd_dm_fm_voice_t * voice);
+static int snd_opl3_set_params(opl3_t * opl3, snd_dm_fm_params_t * params);
+static int snd_opl3_set_mode(opl3_t * opl3, int mode);
+static int snd_opl3_set_connection(opl3_t * opl3, int connection);
+
+/* ------------------------------ */
+
+/*
+ * open the device exclusively
+ */
+int snd_opl3_open(snd_hwdep_t * hw, struct file *file)
+{
+ opl3_t *opl3 = hw->private_data;
+
+ down(&opl3->access_mutex);
+ if (opl3->used) {
+ up(&opl3->access_mutex);
+ return -EAGAIN;
+ }
+ opl3->used++;
+ up(&opl3->access_mutex);
+
+ return 0;
+}
+
+/*
+ * ioctl for hwdep device:
+ */
+int snd_opl3_ioctl(snd_hwdep_t * hw, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ opl3_t *opl3 = hw->private_data;
+ void __user *argp = (void __user *)arg;
+
+ snd_assert(opl3 != NULL, return -EINVAL);
+
+ switch (cmd) {
+ /* get information */
+ case SNDRV_DM_FM_IOCTL_INFO:
+ {
+ snd_dm_fm_info_t info;
+
+ info.fm_mode = opl3->fm_mode;
+ info.rhythm = opl3->rhythm;
+ if (copy_to_user(argp, &info, sizeof(snd_dm_fm_info_t)))
+ return -EFAULT;
+ return 0;
+ }
+
+ case SNDRV_DM_FM_IOCTL_RESET:
+#ifdef CONFIG_SND_OSSEMUL
+ case SNDRV_DM_FM_OSS_IOCTL_RESET:
+#endif
+ snd_opl3_reset(opl3);
+ return 0;
+
+ case SNDRV_DM_FM_IOCTL_PLAY_NOTE:
+#ifdef CONFIG_SND_OSSEMUL
+ case SNDRV_DM_FM_OSS_IOCTL_PLAY_NOTE:
+#endif
+ {
+ snd_dm_fm_note_t note;
+ if (copy_from_user(¬e, argp, sizeof(snd_dm_fm_note_t)))
+ return -EFAULT;
+ return snd_opl3_play_note(opl3, ¬e);
+ }
+
+ case SNDRV_DM_FM_IOCTL_SET_VOICE:
+#ifdef CONFIG_SND_OSSEMUL
+ case SNDRV_DM_FM_OSS_IOCTL_SET_VOICE:
+#endif
+ {
+ snd_dm_fm_voice_t voice;
+ if (copy_from_user(&voice, argp, sizeof(snd_dm_fm_voice_t)))
+ return -EFAULT;
+ return snd_opl3_set_voice(opl3, &voice);
+ }
+
+ case SNDRV_DM_FM_IOCTL_SET_PARAMS:
+#ifdef CONFIG_SND_OSSEMUL
+ case SNDRV_DM_FM_OSS_IOCTL_SET_PARAMS:
+#endif
+ {
+ snd_dm_fm_params_t params;
+ if (copy_from_user(¶ms, argp, sizeof(snd_dm_fm_params_t)))
+ return -EFAULT;
+ return snd_opl3_set_params(opl3, ¶ms);
+ }
+
+ case SNDRV_DM_FM_IOCTL_SET_MODE:
+#ifdef CONFIG_SND_OSSEMUL
+ case SNDRV_DM_FM_OSS_IOCTL_SET_MODE:
+#endif
+ return snd_opl3_set_mode(opl3, (int) arg);
+
+ case SNDRV_DM_FM_IOCTL_SET_CONNECTION:
+#ifdef CONFIG_SND_OSSEMUL
+ case SNDRV_DM_FM_OSS_IOCTL_SET_OPL:
+#endif
+ return snd_opl3_set_connection(opl3, (int) arg);
+
+#ifdef CONFIG_SND_DEBUG
+ default:
+ snd_printk("unknown IOCTL: 0x%x\n", cmd);
+#endif
+ }
+ return -ENOTTY;
+}
+
+/*
+ * close the device
+ */
+int snd_opl3_release(snd_hwdep_t * hw, struct file *file)
+{
+ opl3_t *opl3 = hw->private_data;
+
+ snd_opl3_reset(opl3);
+ down(&opl3->access_mutex);
+ opl3->used--;
+ up(&opl3->access_mutex);
+
+ return 0;
+}
+
+/* ------------------------------ */
+
+void snd_opl3_reset(opl3_t * opl3)
+{
+ unsigned short opl3_reg;
+
+ unsigned short reg_side;
+ unsigned char voice_offset;
+
+ int max_voices, i;
+
+ max_voices = (opl3->hardware < OPL3_HW_OPL3) ?
+ MAX_OPL2_VOICES : MAX_OPL3_VOICES;
+
+ for (i = 0; i < max_voices; i++) {
+ /* Get register array side and offset of voice */
+ if (i < MAX_OPL2_VOICES) {
+ /* Left register block for voices 0 .. 8 */
+ reg_side = OPL3_LEFT;
+ voice_offset = i;
+ } else {
+ /* Right register block for voices 9 .. 17 */
+ reg_side = OPL3_RIGHT;
+ voice_offset = i - MAX_OPL2_VOICES;
+ }
+ opl3_reg = reg_side | (OPL3_REG_KSL_LEVEL + snd_opl3_regmap[voice_offset][0]);
+ opl3->command(opl3, opl3_reg, OPL3_TOTAL_LEVEL_MASK); /* Operator 1 volume */
+ opl3_reg = reg_side | (OPL3_REG_KSL_LEVEL + snd_opl3_regmap[voice_offset][1]);
+ opl3->command(opl3, opl3_reg, OPL3_TOTAL_LEVEL_MASK); /* Operator 2 volume */
+
+ opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset);
+ opl3->command(opl3, opl3_reg, 0x00); /* Note off */
+ }
+
+ opl3->max_voices = MAX_OPL2_VOICES;
+ opl3->fm_mode = SNDRV_DM_FM_MODE_OPL2;
+
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_TEST, OPL3_ENABLE_WAVE_SELECT);
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, 0x00); /* Melodic mode */
+ opl3->rhythm = 0;
+}
+
+
+static int snd_opl3_play_note(opl3_t * opl3, snd_dm_fm_note_t * note)
+{
+ unsigned short reg_side;
+ unsigned char voice_offset;
+
+ unsigned short opl3_reg;
+ unsigned char reg_val;
+
+ /* Voices 0 - 8 in OPL2 mode */
+ /* Voices 0 - 17 in OPL3 mode */
+ if (note->voice >= ((opl3->fm_mode == SNDRV_DM_FM_MODE_OPL3) ?
+ MAX_OPL3_VOICES : MAX_OPL2_VOICES))
+ return -EINVAL;
+
+ /* Get register array side and offset of voice */
+ if (note->voice < MAX_OPL2_VOICES) {
+ /* Left register block for voices 0 .. 8 */
+ reg_side = OPL3_LEFT;
+ voice_offset = note->voice;
+ } else {
+ /* Right register block for voices 9 .. 17 */
+ reg_side = OPL3_RIGHT;
+ voice_offset = note->voice - MAX_OPL2_VOICES;
+ }
+
+ /* Set lower 8 bits of note frequency */
+ reg_val = (unsigned char) note->fnum;
+ opl3_reg = reg_side | (OPL3_REG_FNUM_LOW + voice_offset);
+ opl3->command(opl3, opl3_reg, reg_val);
+
+ reg_val = 0x00;
+ /* Set output sound flag */
+ if (note->key_on)
+ reg_val |= OPL3_KEYON_BIT;
+ /* Set octave */
+ reg_val |= (note->octave << 2) & OPL3_BLOCKNUM_MASK;
+ /* Set higher 2 bits of note frequency */
+ reg_val |= (unsigned char) (note->fnum >> 8) & OPL3_FNUM_HIGH_MASK;
+
+ /* Set OPL3 KEYON_BLOCK register of requested voice */
+ opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset);
+ opl3->command(opl3, opl3_reg, reg_val);
+
+ return 0;
+}
+
+
+static int snd_opl3_set_voice(opl3_t * opl3, snd_dm_fm_voice_t * voice)
+{
+ unsigned short reg_side;
+ unsigned char op_offset;
+ unsigned char voice_offset;
+
+ unsigned short opl3_reg;
+ unsigned char reg_val;
+
+ /* Only operators 1 and 2 */
+ if (voice->op > 1)
+ return -EINVAL;
+ /* Voices 0 - 8 in OPL2 mode */
+ /* Voices 0 - 17 in OPL3 mode */
+ if (voice->voice >= ((opl3->fm_mode == SNDRV_DM_FM_MODE_OPL3) ?
+ MAX_OPL3_VOICES : MAX_OPL2_VOICES))
+ return -EINVAL;
+
+ /* Get register array side and offset of voice */
+ if (voice->voice < MAX_OPL2_VOICES) {
+ /* Left register block for voices 0 .. 8 */
+ reg_side = OPL3_LEFT;
+ voice_offset = voice->voice;
+ } else {
+ /* Right register block for voices 9 .. 17 */
+ reg_side = OPL3_RIGHT;
+ voice_offset = voice->voice - MAX_OPL2_VOICES;
+ }
+ /* Get register offset of operator */
+ op_offset = snd_opl3_regmap[voice_offset][voice->op];
+
+ reg_val = 0x00;
+ /* Set amplitude modulation (tremolo) effect */
+ if (voice->am)
+ reg_val |= OPL3_TREMOLO_ON;
+ /* Set vibrato effect */
+ if (voice->vibrato)
+ reg_val |= OPL3_VIBRATO_ON;
+ /* Set sustaining sound phase */
+ if (voice->do_sustain)
+ reg_val |= OPL3_SUSTAIN_ON;
+ /* Set keyboard scaling bit */
+ if (voice->kbd_scale)
+ reg_val |= OPL3_KSR;
+ /* Set harmonic or frequency multiplier */
+ reg_val |= voice->harmonic & OPL3_MULTIPLE_MASK;
+
+ /* Set OPL3 AM_VIB register of requested voice/operator */
+ opl3_reg = reg_side | (OPL3_REG_AM_VIB + op_offset);
+ opl3->command(opl3, opl3_reg, reg_val);
+
+ /* Set decreasing volume of higher notes */
+ reg_val = (voice->scale_level << 6) & OPL3_KSL_MASK;
+ /* Set output volume */
+ reg_val |= ~voice->volume & OPL3_TOTAL_LEVEL_MASK;
+
+ /* Set OPL3 KSL_LEVEL register of requested voice/operator */
+ opl3_reg = reg_side | (OPL3_REG_KSL_LEVEL + op_offset);
+ opl3->command(opl3, opl3_reg, reg_val);
+
+ /* Set attack phase level */
+ reg_val = (voice->attack << 4) & OPL3_ATTACK_MASK;
+ /* Set decay phase level */
+ reg_val |= voice->decay & OPL3_DECAY_MASK;
+
+ /* Set OPL3 ATTACK_DECAY register of requested voice/operator */
+ opl3_reg = reg_side | (OPL3_REG_ATTACK_DECAY + op_offset);
+ opl3->command(opl3, opl3_reg, reg_val);
+
+ /* Set sustain phase level */
+ reg_val = (voice->sustain << 4) & OPL3_SUSTAIN_MASK;
+ /* Set release phase level */
+ reg_val |= voice->release & OPL3_RELEASE_MASK;
+
+ /* Set OPL3 SUSTAIN_RELEASE register of requested voice/operator */
+ opl3_reg = reg_side | (OPL3_REG_SUSTAIN_RELEASE + op_offset);
+ opl3->command(opl3, opl3_reg, reg_val);
+
+ /* Set inter-operator feedback */
+ reg_val = (voice->feedback << 1) & OPL3_FEEDBACK_MASK;
+ /* Set inter-operator connection */
+ if (voice->connection)
+ reg_val |= OPL3_CONNECTION_BIT;
+ /* OPL-3 only */
+ if (opl3->fm_mode == SNDRV_DM_FM_MODE_OPL3) {
+ if (voice->left)
+ reg_val |= OPL3_VOICE_TO_LEFT;
+ if (voice->right)
+ reg_val |= OPL3_VOICE_TO_RIGHT;
+ }
+ /* Feedback/connection bits are applicable to voice */
+ opl3_reg = reg_side | (OPL3_REG_FEEDBACK_CONNECTION + voice_offset);
+ opl3->command(opl3, opl3_reg, reg_val);
+
+ /* Select waveform */
+ reg_val = voice->waveform & OPL3_WAVE_SELECT_MASK;
+ opl3_reg = reg_side | (OPL3_REG_WAVE_SELECT + op_offset);
+ opl3->command(opl3, opl3_reg, reg_val);
+
+ return 0;
+}
+
+static int snd_opl3_set_params(opl3_t * opl3, snd_dm_fm_params_t * params)
+{
+ unsigned char reg_val;
+
+ reg_val = 0x00;
+ /* Set keyboard split method */
+ if (params->kbd_split)
+ reg_val |= OPL3_KEYBOARD_SPLIT;
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_KBD_SPLIT, reg_val);
+
+ reg_val = 0x00;
+ /* Set amplitude modulation (tremolo) depth */
+ if (params->am_depth)
+ reg_val |= OPL3_TREMOLO_DEPTH;
+ /* Set vibrato depth */
+ if (params->vib_depth)
+ reg_val |= OPL3_VIBRATO_DEPTH;
+ /* Set percussion mode */
+ if (params->rhythm) {
+ reg_val |= OPL3_PERCUSSION_ENABLE;
+ opl3->rhythm = 1;
+ } else {
+ opl3->rhythm = 0;
+ }
+ /* Play percussion instruments */
+ if (params->bass)
+ reg_val |= OPL3_BASSDRUM_ON;
+ if (params->snare)
+ reg_val |= OPL3_SNAREDRUM_ON;
+ if (params->tomtom)
+ reg_val |= OPL3_TOMTOM_ON;
+ if (params->cymbal)
+ reg_val |= OPL3_CYMBAL_ON;
+ if (params->hihat)
+ reg_val |= OPL3_HIHAT_ON;
+
+ opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, reg_val);
+ return 0;
+}
+
+static int snd_opl3_set_mode(opl3_t * opl3, int mode)
+{
+ if ((mode == SNDRV_DM_FM_MODE_OPL3) && (opl3->hardware < OPL3_HW_OPL3))
+ return -EINVAL;
+
+ opl3->fm_mode = mode;
+ if (opl3->hardware >= OPL3_HW_OPL3)
+ opl3->command(opl3, OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT, 0x00); /* Clear 4-op connections */
+
+ return 0;
+}
+
+static int snd_opl3_set_connection(opl3_t * opl3, int connection)
+{
+ unsigned char reg_val;
+
+ /* OPL-3 only */
+ if (opl3->fm_mode != SNDRV_DM_FM_MODE_OPL3)
+ return -EINVAL;
+
+ reg_val = connection & (OPL3_RIGHT_4OP_0 | OPL3_RIGHT_4OP_1 | OPL3_RIGHT_4OP_2 |
+ OPL3_LEFT_4OP_0 | OPL3_LEFT_4OP_1 | OPL3_LEFT_4OP_2);
+ /* Set 4-op connections */
+ opl3->command(opl3, OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT, reg_val);
+
+ return 0;
+}