forked from luck/tmp_suning_uos_patched
ac19e19b36
Move EXPORT_SYMBOL() to adjacent to each exported function/variable. Signed-off-by: Takashi Iwai <tiwai@suse.de>
452 lines
12 KiB
C
452 lines
12 KiB
C
/*
|
|
* 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) */
|
|
};
|
|
|
|
EXPORT_SYMBOL(snd_opl3_regmap);
|
|
|
|
/*
|
|
* prototypes
|
|
*/
|
|
static int snd_opl3_play_note(struct snd_opl3 * opl3, struct snd_dm_fm_note * note);
|
|
static int snd_opl3_set_voice(struct snd_opl3 * opl3, struct snd_dm_fm_voice * voice);
|
|
static int snd_opl3_set_params(struct snd_opl3 * opl3, struct snd_dm_fm_params * params);
|
|
static int snd_opl3_set_mode(struct snd_opl3 * opl3, int mode);
|
|
static int snd_opl3_set_connection(struct snd_opl3 * opl3, int connection);
|
|
|
|
/* ------------------------------ */
|
|
|
|
/*
|
|
* open the device exclusively
|
|
*/
|
|
int snd_opl3_open(struct snd_hwdep * hw, struct file *file)
|
|
{
|
|
struct snd_opl3 *opl3 = hw->private_data;
|
|
|
|
mutex_lock(&opl3->access_mutex);
|
|
if (opl3->used) {
|
|
mutex_unlock(&opl3->access_mutex);
|
|
return -EAGAIN;
|
|
}
|
|
opl3->used++;
|
|
mutex_unlock(&opl3->access_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* ioctl for hwdep device:
|
|
*/
|
|
int snd_opl3_ioctl(struct snd_hwdep * hw, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
struct snd_opl3 *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:
|
|
{
|
|
struct snd_dm_fm_info info;
|
|
|
|
info.fm_mode = opl3->fm_mode;
|
|
info.rhythm = opl3->rhythm;
|
|
if (copy_to_user(argp, &info, sizeof(struct snd_dm_fm_info)))
|
|
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
|
|
{
|
|
struct snd_dm_fm_note note;
|
|
if (copy_from_user(¬e, argp, sizeof(struct snd_dm_fm_note)))
|
|
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
|
|
{
|
|
struct snd_dm_fm_voice voice;
|
|
if (copy_from_user(&voice, argp, sizeof(struct snd_dm_fm_voice)))
|
|
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
|
|
{
|
|
struct snd_dm_fm_params params;
|
|
if (copy_from_user(¶ms, argp, sizeof(struct snd_dm_fm_params)))
|
|
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(struct snd_hwdep * hw, struct file *file)
|
|
{
|
|
struct snd_opl3 *opl3 = hw->private_data;
|
|
|
|
snd_opl3_reset(opl3);
|
|
mutex_lock(&opl3->access_mutex);
|
|
opl3->used--;
|
|
mutex_unlock(&opl3->access_mutex);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* ------------------------------ */
|
|
|
|
void snd_opl3_reset(struct snd_opl3 * 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;
|
|
}
|
|
|
|
EXPORT_SYMBOL(snd_opl3_reset);
|
|
|
|
static int snd_opl3_play_note(struct snd_opl3 * opl3, struct snd_dm_fm_note * 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(struct snd_opl3 * opl3, struct snd_dm_fm_voice * 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(struct snd_opl3 * opl3, struct snd_dm_fm_params * 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(struct snd_opl3 * 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(struct snd_opl3 * 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;
|
|
}
|
|
|