diff options
Diffstat (limited to 'sound/drivers/opl3')
| -rw-r--r-- | sound/drivers/opl3/Makefile | 22 | ||||
| -rw-r--r-- | sound/drivers/opl3/opl3_drums.c | 223 | ||||
| -rw-r--r-- | sound/drivers/opl3/opl3_lib.c | 558 | ||||
| -rw-r--r-- | sound/drivers/opl3/opl3_midi.c | 873 | ||||
| -rw-r--r-- | sound/drivers/opl3/opl3_oss.c | 356 | ||||
| -rw-r--r-- | sound/drivers/opl3/opl3_seq.c | 314 | ||||
| -rw-r--r-- | sound/drivers/opl3/opl3_synth.c | 447 | ||||
| -rw-r--r-- | sound/drivers/opl3/opl3_voice.h | 52 |
8 files changed, 2845 insertions, 0 deletions
diff --git a/sound/drivers/opl3/Makefile b/sound/drivers/opl3/Makefile new file mode 100644 index 00000000000..12059785b5c --- /dev/null +++ b/sound/drivers/opl3/Makefile @@ -0,0 +1,22 @@ +# +# Makefile for ALSA +# Copyright (c) 2001 by Jaroslav Kysela <perex@suse.cz> +# + +snd-opl3-lib-objs := opl3_lib.o opl3_synth.o +snd-opl3-synth-objs := opl3_seq.o opl3_midi.o opl3_drums.o +ifeq ($(CONFIG_SND_SEQUENCER_OSS),y) +snd-opl3-synth-objs += opl3_oss.o +endif + +# +# this function returns: +# "m" - CONFIG_SND_SEQUENCER is m +# <empty string> - CONFIG_SND_SEQUENCER is undefined +# otherwise parameter #1 value +# +sequencer = $(if $(subst y,,$(CONFIG_SND_SEQUENCER)),$(if $(1),m),$(if $(CONFIG_SND_SEQUENCER),$(1))) + +obj-$(CONFIG_SND_OPL3_LIB) += snd-opl3-lib.o +obj-$(CONFIG_SND_OPL4_LIB) += snd-opl3-lib.o +obj-$(call sequencer,$(CONFIG_SND_OPL3_LIB)) += snd-opl3-synth.o diff --git a/sound/drivers/opl3/opl3_drums.c b/sound/drivers/opl3/opl3_drums.c new file mode 100644 index 00000000000..f26332680c1 --- /dev/null +++ b/sound/drivers/opl3/opl3_drums.c @@ -0,0 +1,223 @@ +/* + * Copyright (c) by Uros Bizjak <uros@kss-loka.si> + * + * OPL2/OPL3/OPL4 FM routines for internal percussion channels + * + * 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" + +extern char snd_opl3_regmap[MAX_OPL2_VOICES][4]; + +static char snd_opl3_drum_table[47] = +{ + OPL3_BASSDRUM_ON, OPL3_BASSDRUM_ON, OPL3_HIHAT_ON, /* 35 - 37 */ + OPL3_SNAREDRUM_ON, OPL3_HIHAT_ON, OPL3_SNAREDRUM_ON, /* 38 - 40 */ + OPL3_BASSDRUM_ON, OPL3_HIHAT_ON, OPL3_BASSDRUM_ON, /* 41 - 43 */ + OPL3_HIHAT_ON, OPL3_TOMTOM_ON, OPL3_HIHAT_ON, /* 44 - 46 */ + OPL3_TOMTOM_ON, OPL3_TOMTOM_ON, OPL3_CYMBAL_ON, /* 47 - 49 */ + + OPL3_TOMTOM_ON, OPL3_CYMBAL_ON, OPL3_CYMBAL_ON, /* 50 - 52 */ + OPL3_CYMBAL_ON, OPL3_CYMBAL_ON, OPL3_CYMBAL_ON, /* 53 - 55 */ + OPL3_HIHAT_ON, OPL3_CYMBAL_ON, OPL3_TOMTOM_ON, /* 56 - 58 */ + OPL3_CYMBAL_ON, OPL3_TOMTOM_ON, OPL3_TOMTOM_ON, /* 59 - 61 */ + OPL3_HIHAT_ON, OPL3_TOMTOM_ON, OPL3_TOMTOM_ON, /* 62 - 64 */ + + OPL3_TOMTOM_ON, OPL3_TOMTOM_ON, OPL3_TOMTOM_ON, /* 65 - 67 */ + OPL3_TOMTOM_ON, OPL3_HIHAT_ON, OPL3_HIHAT_ON, /* 68 - 70 */ + OPL3_HIHAT_ON, OPL3_HIHAT_ON, OPL3_TOMTOM_ON, /* 71 - 73 */ + OPL3_TOMTOM_ON, OPL3_TOMTOM_ON, OPL3_TOMTOM_ON, /* 74 - 76 */ + OPL3_TOMTOM_ON, OPL3_TOMTOM_ON, OPL3_TOMTOM_ON, /* 77 - 79 */ + OPL3_CYMBAL_ON, OPL3_CYMBAL_ON /* 80 - 81 */ +}; + +typedef struct snd_opl3_drum_voice { + int voice; + int op; + unsigned char am_vib; + unsigned char ksl_level; + unsigned char attack_decay; + unsigned char sustain_release; + unsigned char feedback_connection; + unsigned char wave_select; +} snd_opl3_drum_voice_t; + +typedef struct snd_opl3_drum_note { + int voice; + unsigned char fnum; + unsigned char octave_f; + unsigned char feedback_connection; +} snd_opl3_drum_note_t; + +static snd_opl3_drum_voice_t bass_op0 = {6, 0, 0x00, 0x32, 0xf8, 0x66, 0x30, 0x00}; +static snd_opl3_drum_voice_t bass_op1 = {6, 1, 0x00, 0x03, 0xf6, 0x57, 0x30, 0x00}; +static snd_opl3_drum_note_t bass_note = {6, 0x90, 0x09}; + +static snd_opl3_drum_voice_t hihat = {7, 0, 0x00, 0x03, 0xf0, 0x06, 0x20, 0x00}; + +static snd_opl3_drum_voice_t snare = {7, 1, 0x00, 0x03, 0xf0, 0x07, 0x20, 0x02}; +static snd_opl3_drum_note_t snare_note = {7, 0xf4, 0x0d}; + +static snd_opl3_drum_voice_t tomtom = {8, 0, 0x02, 0x03, 0xf0, 0x06, 0x10, 0x00}; +static snd_opl3_drum_note_t tomtom_note = {8, 0xf4, 0x09}; + +static snd_opl3_drum_voice_t cymbal = {8, 1, 0x04, 0x03, 0xf0, 0x06, 0x10, 0x00}; + +/* + * set drum voice characteristics + */ +static void snd_opl3_drum_voice_set(opl3_t *opl3, snd_opl3_drum_voice_t *data) +{ + unsigned char op_offset = snd_opl3_regmap[data->voice][data->op]; + unsigned char voice_offset = data->voice; + unsigned short opl3_reg; + + /* Set OPL3 AM_VIB register */ + opl3_reg = OPL3_LEFT | (OPL3_REG_AM_VIB + op_offset); + opl3->command(opl3, opl3_reg, data->am_vib); + + /* Set OPL3 KSL_LEVEL register */ + opl3_reg = OPL3_LEFT | (OPL3_REG_KSL_LEVEL + op_offset); + opl3->command(opl3, opl3_reg, data->ksl_level); + + /* Set OPL3 ATTACK_DECAY register */ + opl3_reg = OPL3_LEFT | (OPL3_REG_ATTACK_DECAY + op_offset); + opl3->command(opl3, opl3_reg, data->attack_decay); + + /* Set OPL3 SUSTAIN_RELEASE register */ + opl3_reg = OPL3_LEFT | (OPL3_REG_SUSTAIN_RELEASE + op_offset); + opl3->command(opl3, opl3_reg, data->sustain_release); + + /* Set OPL3 FEEDBACK_CONNECTION register */ + opl3_reg = OPL3_LEFT | (OPL3_REG_FEEDBACK_CONNECTION + voice_offset); + opl3->command(opl3, opl3_reg, data->feedback_connection); + + /* Select waveform */ + opl3_reg = OPL3_LEFT | (OPL3_REG_WAVE_SELECT + op_offset); + opl3->command(opl3, opl3_reg, data->wave_select); +} + +/* + * Set drum voice pitch + */ +static void snd_opl3_drum_note_set(opl3_t *opl3, snd_opl3_drum_note_t *data) +{ + unsigned char voice_offset = data->voice; + unsigned short opl3_reg; + + /* Set OPL3 FNUM_LOW register */ + opl3_reg = OPL3_LEFT | (OPL3_REG_FNUM_LOW + voice_offset); + opl3->command(opl3, opl3_reg, data->fnum); + + /* Set OPL3 KEYON_BLOCK register */ + opl3_reg = OPL3_LEFT | (OPL3_REG_KEYON_BLOCK + voice_offset); + opl3->command(opl3, opl3_reg, data->octave_f); +} + +/* + * Set drum voice volume and position + */ +static void snd_opl3_drum_vol_set(opl3_t *opl3, snd_opl3_drum_voice_t *data, + int vel, snd_midi_channel_t *chan) +{ + unsigned char op_offset = snd_opl3_regmap[data->voice][data->op]; + unsigned char voice_offset = data->voice; + unsigned char reg_val; + unsigned short opl3_reg; + + /* Set OPL3 KSL_LEVEL register */ + reg_val = data->ksl_level; + snd_opl3_calc_volume(®_val, vel, chan); + opl3_reg = OPL3_LEFT | (OPL3_REG_KSL_LEVEL + op_offset); + opl3->command(opl3, opl3_reg, reg_val); + + /* Set OPL3 FEEDBACK_CONNECTION register */ + /* Set output voice connection */ + reg_val = data->feedback_connection | OPL3_STEREO_BITS; + if (chan->gm_pan < 43) + reg_val &= ~OPL3_VOICE_TO_RIGHT; + if (chan->gm_pan > 85) + reg_val &= ~OPL3_VOICE_TO_LEFT; + opl3_reg = OPL3_LEFT | (OPL3_REG_FEEDBACK_CONNECTION + voice_offset); + opl3->command(opl3, opl3_reg, reg_val); +} + +/* + * Loads drum voices at init time + */ +void snd_opl3_load_drums(opl3_t *opl3) +{ + snd_opl3_drum_voice_set(opl3, &bass_op0); + snd_opl3_drum_voice_set(opl3, &bass_op1); + snd_opl3_drum_note_set(opl3, &bass_note); + + snd_opl3_drum_voice_set(opl3, &hihat); + + snd_opl3_drum_voice_set(opl3, &snare); + snd_opl3_drum_note_set(opl3, &snare_note); + + snd_opl3_drum_voice_set(opl3, &tomtom); + snd_opl3_drum_note_set(opl3, &tomtom_note); + + snd_opl3_drum_voice_set(opl3, &cymbal); +} + +/* + * Switch drum voice on or off + */ +void snd_opl3_drum_switch(opl3_t *opl3, int note, int vel, int on_off, + snd_midi_channel_t *chan) +{ + unsigned char drum_mask; + snd_opl3_drum_voice_t *drum_voice; + + if (!(opl3->drum_reg & OPL3_PERCUSSION_ENABLE)) + return; + + if ((note < 35) || (note > 81)) + return; + drum_mask = snd_opl3_drum_table[note - 35]; + + if (on_off) { + switch (drum_mask) { + case OPL3_BASSDRUM_ON: + drum_voice = &bass_op1; + break; + case OPL3_HIHAT_ON: + drum_voice = &hihat; + break; + case OPL3_SNAREDRUM_ON: + drum_voice = &snare; + break; + case OPL3_TOMTOM_ON: + drum_voice = &tomtom; + break; + case OPL3_CYMBAL_ON: + drum_voice = &cymbal; + break; + default: + drum_voice = &tomtom; + } + + snd_opl3_drum_vol_set(opl3, drum_voice, vel, chan); + opl3->drum_reg |= drum_mask; + } else { + opl3->drum_reg &= ~drum_mask; + } + opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, + opl3->drum_reg); +} diff --git a/sound/drivers/opl3/opl3_lib.c b/sound/drivers/opl3/opl3_lib.c new file mode 100644 index 00000000000..c313e5205cb --- /dev/null +++ b/sound/drivers/opl3/opl3_lib.c @@ -0,0 +1,558 @@ +/* + * Copyright (c) by Jaroslav Kysela <perex@suse.cz>, + * Hannu Savolainen 1993-1996, + * Rob Hooft + * + * Routines for control of AdLib FM cards (OPL2/OPL3/OPL4 chips) + * + * Most if code is ported from OSS/Lite. + * + * 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 <asm/io.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/ioport.h> +#include <sound/minors.h> + +MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Hannu Savolainen 1993-1996, Rob Hooft"); +MODULE_DESCRIPTION("Routines for control of AdLib FM cards (OPL2/OPL3/OPL4 chips)"); +MODULE_LICENSE("GPL"); + +extern char snd_opl3_regmap[MAX_OPL2_VOICES][4]; + +static void snd_opl2_command(opl3_t * opl3, unsigned short cmd, unsigned char val) +{ + unsigned long flags; + unsigned long port; + + /* + * The original 2-OP synth requires a quite long delay + * after writing to a register. + */ + + port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port; + + spin_lock_irqsave(&opl3->reg_lock, flags); + + outb((unsigned char) cmd, port); + udelay(10); + + outb((unsigned char) val, port + 1); + udelay(30); + + spin_unlock_irqrestore(&opl3->reg_lock, flags); +} + +static void snd_opl3_command(opl3_t * opl3, unsigned short cmd, unsigned char val) +{ + unsigned long flags; + unsigned long port; + + /* + * The OPL-3 survives with just two INBs + * after writing to a register. + */ + + port = (cmd & OPL3_RIGHT) ? opl3->r_port : opl3->l_port; + + spin_lock_irqsave(&opl3->reg_lock, flags); + + outb((unsigned char) cmd, port); + inb(opl3->l_port); + inb(opl3->l_port); + + outb((unsigned char) val, port + 1); + inb(opl3->l_port); + inb(opl3->l_port); + + spin_unlock_irqrestore(&opl3->reg_lock, flags); +} + +static int snd_opl3_detect(opl3_t * opl3) +{ + /* + * This function returns 1 if the FM chip is present at the given I/O port + * The detection algorithm plays with the timer built in the FM chip and + * looks for a change in the status register. + * + * Note! The timers of the FM chip are not connected to AdLib (and compatible) + * boards. + * + * Note2! The chip is initialized if detected. + */ + + unsigned char stat1, stat2, signature; + + /* Reset timers 1 and 2 */ + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK); + /* Reset the IRQ of the FM chip */ + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET); + signature = stat1 = inb(opl3->l_port); /* Status register */ + if ((stat1 & 0xe0) != 0x00) { /* Should be 0x00 */ + snd_printd("OPL3: stat1 = 0x%x\n", stat1); + return -ENODEV; + } + /* Set timer1 to 0xff */ + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 0xff); + /* Unmask and start timer 1 */ + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER2_MASK | OPL3_TIMER1_START); + /* Now we have to delay at least 80us */ + udelay(200); + /* Read status after timers have expired */ + stat2 = inb(opl3->l_port); + /* Stop the timers */ + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_TIMER1_MASK | OPL3_TIMER2_MASK); + /* Reset the IRQ of the FM chip */ + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, OPL3_IRQ_RESET); + if ((stat2 & 0xe0) != 0xc0) { /* There is no YM3812 */ + snd_printd("OPL3: stat2 = 0x%x\n", stat2); + return -ENODEV; + } + + /* If the toplevel code knows exactly the type of chip, don't try + to detect it. */ + if (opl3->hardware != OPL3_HW_AUTO) + return 0; + + /* There is a FM chip on this address. Detect the type (OPL2 to OPL4) */ + if (signature == 0x06) { /* OPL2 */ + opl3->hardware = OPL3_HW_OPL2; + } else { + /* + * If we had an OPL4 chip, opl3->hardware would have been set + * by the OPL4 driver; so we can assume OPL3 here. + */ + snd_assert(opl3->r_port != 0, return -ENODEV); + opl3->hardware = OPL3_HW_OPL3; + } + return 0; +} + +/* + * AdLib timers + */ + +/* + * Timer 1 - 80us + */ + +static int snd_opl3_timer1_start(snd_timer_t * timer) +{ + unsigned long flags; + unsigned char tmp; + unsigned int ticks; + opl3_t *opl3; + + opl3 = snd_timer_chip(timer); + spin_lock_irqsave(&opl3->timer_lock, flags); + ticks = timer->sticks; + tmp = (opl3->timer_enable | OPL3_TIMER1_START) & ~OPL3_TIMER1_MASK; + opl3->timer_enable = tmp; + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER1, 256 - ticks); /* timer 1 count */ + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */ + spin_unlock_irqrestore(&opl3->timer_lock, flags); + return 0; +} + +static int snd_opl3_timer1_stop(snd_timer_t * timer) +{ + unsigned long flags; + unsigned char tmp; + opl3_t *opl3; + + opl3 = snd_timer_chip(timer); + spin_lock_irqsave(&opl3->timer_lock, flags); + tmp = (opl3->timer_enable | OPL3_TIMER1_MASK) & ~OPL3_TIMER1_START; + opl3->timer_enable = tmp; + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */ + spin_unlock_irqrestore(&opl3->timer_lock, flags); + return 0; +} + +/* + * Timer 2 - 320us + */ + +static int snd_opl3_timer2_start(snd_timer_t * timer) +{ + unsigned long flags; + unsigned char tmp; + unsigned int ticks; + opl3_t *opl3; + + opl3 = snd_timer_chip(timer); + spin_lock_irqsave(&opl3->timer_lock, flags); + ticks = timer->sticks; + tmp = (opl3->timer_enable | OPL3_TIMER2_START) & ~OPL3_TIMER2_MASK; + opl3->timer_enable = tmp; + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER2, 256 - ticks); /* timer 1 count */ + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* enable timer 1 IRQ */ + spin_unlock_irqrestore(&opl3->timer_lock, flags); + return 0; +} + +static int snd_opl3_timer2_stop(snd_timer_t * timer) +{ + unsigned long flags; + unsigned char tmp; + opl3_t *opl3; + + opl3 = snd_timer_chip(timer); + spin_lock_irqsave(&opl3->timer_lock, flags); + tmp = (opl3->timer_enable | OPL3_TIMER2_MASK) & ~OPL3_TIMER2_START; + opl3->timer_enable = tmp; + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TIMER_CONTROL, tmp); /* disable timer #1 */ + spin_unlock_irqrestore(&opl3->timer_lock, flags); + return 0; +} + +/* + + */ + +static struct _snd_timer_hardware snd_opl3_timer1 = +{ + .flags = SNDRV_TIMER_HW_STOP, + .resolution = 80000, + .ticks = 256, + .start = snd_opl3_timer1_start, + .stop = snd_opl3_timer1_stop, +}; + +static struct _snd_timer_hardware snd_opl3_timer2 = +{ + .flags = SNDRV_TIMER_HW_STOP, + .resolution = 320000, + .ticks = 256, + .start = snd_opl3_timer2_start, + .stop = snd_opl3_timer2_stop, +}; + +static int snd_opl3_timer1_init(opl3_t * opl3, int timer_no) +{ + snd_timer_t *timer = NULL; + snd_timer_id_t tid; + int err; + + tid.dev_class = SNDRV_TIMER_CLASS_CARD; + tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; + tid.card = opl3->card->number; + tid.device = timer_no; + tid.subdevice = 0; + if ((err = snd_timer_new(opl3->card, "AdLib timer #1", &tid, &timer)) >= 0) { + strcpy(timer->name, "AdLib timer #1"); + timer->private_data = opl3; + timer->hw = snd_opl3_timer1; + } + opl3->timer1 = timer; + return err; +} + +static int snd_opl3_timer2_init(opl3_t * opl3, int timer_no) +{ + snd_timer_t *timer = NULL; + snd_timer_id_t tid; + int err; + + tid.dev_class = SNDRV_TIMER_CLASS_CARD; + tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; + tid.card = opl3->card->number; + tid.device = timer_no; + tid.subdevice = 0; + if ((err = snd_timer_new(opl3->card, "AdLib timer #2", &tid, &timer)) >= 0) { + strcpy(timer->name, "AdLib timer #2"); + timer->private_data = opl3; + timer->hw = snd_opl3_timer2; + } + opl3->timer2 = timer; + return err; +} + +/* + + */ + +void snd_opl3_interrupt(snd_hwdep_t * hw) +{ + unsigned char status; + opl3_t *opl3; + snd_timer_t *timer; + + if (hw == NULL) + return; + + opl3 = hw->private_data; + status = inb(opl3->l_port); +#if 0 + snd_printk("AdLib IRQ status = 0x%x\n", status); +#endif + if (!(status & 0x80)) + return; + + if (status & 0x40) { + timer = opl3->timer1; + snd_timer_interrupt(timer, timer->sticks); + } + if (status & 0x20) { + timer = opl3->timer2; + snd_timer_interrupt(timer, timer->sticks); + } +} + +/* + + */ + +static int snd_opl3_free(opl3_t *opl3) +{ + snd_assert(opl3 != NULL, return -ENXIO); + if (opl3->private_free) + opl3->private_free(opl3); + if (opl3->res_l_port) { + release_resource(opl3->res_l_port); + kfree_nocheck(opl3->res_l_port); + } + if (opl3->res_r_port) { + release_resource(opl3->res_r_port); + kfree_nocheck(opl3->res_r_port); + } + kfree(opl3); + return 0; +} + +static int snd_opl3_dev_free(snd_device_t *device) +{ + opl3_t *opl3 = device->device_data; + return snd_opl3_free(opl3); +} + +int snd_opl3_new(snd_card_t *card, + unsigned short hardware, + opl3_t **ropl3) +{ + static snd_device_ops_t ops = { + .dev_free = snd_opl3_dev_free, + }; + opl3_t *opl3; + int err; + + *ropl3 = NULL; + opl3 = kcalloc(1, sizeof(*opl3), GFP_KERNEL); + if (opl3 == NULL) + return -ENOMEM; + + opl3->card = card; + opl3->hardware = hardware; + spin_lock_init(&opl3->reg_lock); + spin_lock_init(&opl3->timer_lock); + init_MUTEX(&opl3->access_mutex); + + if ((err = snd_device_new(card, SNDRV_DEV_CODEC, opl3, &ops)) < 0) { + snd_opl3_free(opl3); + return err; + } + + *ropl3 = opl3; + return 0; +} + +int snd_opl3_init(opl3_t *opl3) +{ + if (! opl3->command) { + printk(KERN_ERR "snd_opl3_init: command not defined!\n"); + return -EINVAL; + } + + opl3->command(opl3, OPL3_LEFT | OPL3_REG_TEST, OPL3_ENABLE_WAVE_SELECT); + /* Melodic mode */ + opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, 0x00); + + switch (opl3->hardware & OPL3_HW_MASK) { + case OPL3_HW_OPL2: + opl3->max_voices = MAX_OPL2_VOICES; + break; + case OPL3_HW_OPL3: + case OPL3_HW_OPL4: + opl3->max_voices = MAX_OPL3_VOICES; + /* Enter OPL3 mode */ + opl3->command(opl3, OPL3_RIGHT | OPL3_REG_MODE, OPL3_OPL3_ENABLE); + } + return 0; +} + +int snd_opl3_create(snd_card_t * card, + unsigned long l_port, + unsigned long r_port, + unsigned short hardware, + int integrated, + opl3_t ** ropl3) +{ + opl3_t *opl3; + int err; + + *ropl3 = NULL; + if ((err = snd_opl3_new(card, hardware, &opl3)) < 0) + return err; + if (! integrated) { + if ((opl3->res_l_port = request_region(l_port, 2, "OPL2/3 (left)")) == NULL) { + snd_printk(KERN_ERR "opl3: can't grab left port 0x%lx\n", l_port); + snd_opl3_free(opl3); + return -EBUSY; + } + if (r_port != 0 && + (opl3->res_r_port = request_region(r_port, 2, "OPL2/3 (right)")) == NULL) { + snd_printk(KERN_ERR "opl3: can't grab right port 0x%lx\n", r_port); + snd_opl3_free(opl3); + return -EBUSY; + } + } + opl3->l_port = l_port; + opl3->r_port = r_port; + + switch (opl3->hardware) { + /* some hardware doesn't support timers */ + case OPL3_HW_OPL3_SV: + case OPL3_HW_OPL3_CS: + case OPL3_HW_OPL3_FM801: + opl3->command = &snd_opl3_command; + break; + default: + opl3->command = &snd_opl2_command; + if ((err = snd_opl3_detect(opl3)) < 0) { + snd_printd("OPL2/3 chip not detected at 0x%lx/0x%lx\n", + opl3->l_port, opl3->r_port); + snd_opl3_free(opl3); + return err; + } + /* detect routine returns correct hardware type */ + switch (opl3->hardware & OPL3_HW_MASK) { + case OPL3_HW_OPL3: + case OPL3_HW_OPL4: + opl3->command = &snd_opl3_command; + } + } + + snd_opl3_init(opl3); + + *ropl3 = opl3; + return 0; +} + +int snd_opl3_timer_new(opl3_t * opl3, int timer1_dev, int timer2_dev) +{ + int err; + + if (timer1_dev >= 0) + if ((err = snd_opl3_timer1_init(opl3, timer1_dev)) < 0) + return err; + if (timer2_dev >= 0) { + if ((err = snd_opl3_timer2_init(opl3, timer2_dev)) < 0) { + snd_device_free(opl3->card, opl3->timer1); + opl3->timer1 = NULL; + return err; + } + } + return 0; +} + +int snd_opl3_hwdep_new(opl3_t * opl3, + int device, int seq_device, + snd_hwdep_t ** rhwdep) +{ + snd_hwdep_t *hw; + snd_card_t *card = opl3->card; + int err; + + if (rhwdep) + *rhwdep = NULL; + + /* create hardware dependent device (direct FM) */ + + if ((err = snd_hwdep_new(card, "OPL2/OPL3", device, &hw)) < 0) { + snd_device_free(card, opl3); + return err; + } + hw->private_data = opl3; +#ifdef CONFIG_SND_OSSEMUL + if (device == 0) { + hw->oss_type = SNDRV_OSS_DEVICE_TYPE_DMFM; + sprintf(hw->oss_dev, "dmfm%i", card->number); + } +#endif + strcpy(hw->name, hw->id); + switch (opl3->hardware & OPL3_HW_MASK) { + case OPL3_HW_OPL2: + strcpy(hw->name, "OPL2 FM"); + hw->iface = SNDRV_HWDEP_IFACE_OPL2; + break; + case OPL3_HW_OPL3: + strcpy(hw->name, "OPL3 FM"); + hw->iface = SNDRV_HWDEP_IFACE_OPL3; + break; + case OPL3_HW_OPL4: + strcpy(hw->name, "OPL4 FM"); + hw->iface = SNDRV_HWDEP_IFACE_OPL4; + break; + } + + /* operators - only ioctl */ + hw->ops.open = snd_opl3_open; + hw->ops.ioctl = snd_opl3_ioctl; + hw->ops.release = snd_opl3_release; + + opl3->seq_dev_num = seq_device; +#if defined(CONFIG_SND_SEQUENCER) || (defined(MODULE) && defined(CONFIG_SND_SEQUENCER_MODULE)) + if (snd_seq_device_new(card, seq_device, SNDRV_SEQ_DEV_ID_OPL3, + sizeof(opl3_t*), &opl3->seq_dev) >= 0) { + strcpy(opl3->seq_dev->name, hw->name); + *(opl3_t**)SNDRV_SEQ_DEVICE_ARGPTR(opl3->seq_dev) = opl3; + } +#endif + if (rhwdep) + *rhwdep = hw; + return 0; +} + +EXPORT_SYMBOL(snd_opl3_interrupt); +EXPORT_SYMBOL(snd_opl3_new); +EXPORT_SYMBOL(snd_opl3_init); +EXPORT_SYMBOL(snd_opl3_create); +EXPORT_SYMBOL(snd_opl3_timer_new); +EXPORT_SYMBOL(snd_opl3_hwdep_new); + +/* opl3_synth.c */ +EXPORT_SYMBOL(snd_opl3_regmap); +EXPORT_SYMBOL(snd_opl3_reset); + +/* + * INIT part + */ + +static int __init alsa_opl3_init(void) +{ + return 0; +} + +static void __exit alsa_opl3_exit(void) +{ +} + +module_init(alsa_opl3_init) +module_exit(alsa_opl3_exit) diff --git a/sound/drivers/opl3/opl3_midi.c b/sound/drivers/opl3/opl3_midi.c new file mode 100644 index 00000000000..93d674070b7 --- /dev/null +++ b/sound/drivers/opl3/opl3_midi.c @@ -0,0 +1,873 @@ +/* + * Copyright (c) by Uros Bizjak <uros@kss-loka.si> + * + * Midi synth routines for OPL2/OPL3/OPL4 FM + * + * 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 + * + */ + +#undef DEBUG_ALLOC +#undef DEBUG_MIDI + +#include "opl3_voice.h" +#include <sound/asoundef.h> + +extern char snd_opl3_regmap[MAX_OPL2_VOICES][4]; + +extern int use_internal_drums; + +/* + * The next table looks magical, but it certainly is not. Its values have + * been calculated as table[i]=8*log(i/64)/log(2) with an obvious exception + * for i=0. This log-table converts a linear volume-scaling (0..127) to a + * logarithmic scaling as present in the FM-synthesizer chips. so : Volume + * 64 = 0 db = relative volume 0 and: Volume 32 = -6 db = relative + * volume -8 it was implemented as a table because it is only 128 bytes and + * it saves a lot of log() calculations. (Rob Hooft <hooft@chem.ruu.nl>) + */ + +static char opl3_volume_table[128] = +{ + -63, -48, -40, -35, -32, -29, -27, -26, + -24, -23, -21, -20, -19, -18, -18, -17, + -16, -15, -15, -14, -13, -13, -12, -12, + -11, -11, -10, -10, -10, -9, -9, -8, + -8, -8, -7, -7, -7, -6, -6, -6, + -5, -5, -5, -5, -4, -4, -4, -4, + -3, -3, -3, -3, -2, -2, -2, -2, + -2, -1, -1, -1, -1, 0, 0, 0, + 0, 0, 0, 1, 1, 1, 1, 1, + 1, 2, 2, 2, 2, 2, 2, 2, + 3, 3, 3, 3, 3, 3, 3, 4, + 4, 4, 4, 4, 4, 4, 4, 5, + 5, 5, 5, 5, 5, 5, 5, 5, + 6, 6, 6, 6, 6, 6, 6, 6, + 6, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 8, 8, 8, 8, 8 +}; + +void snd_opl3_calc_volume(unsigned char *volbyte, int vel, + snd_midi_channel_t *chan) +{ + int oldvol, newvol, n; + int volume; + + volume = (vel * chan->gm_volume * chan->gm_expression) / (127*127); + if (volume > 127) + volume = 127; + + oldvol = OPL3_TOTAL_LEVEL_MASK - (*volbyte & OPL3_TOTAL_LEVEL_MASK); + + newvol = opl3_volume_table[volume] + oldvol; + if (newvol > OPL3_TOTAL_LEVEL_MASK) + newvol = OPL3_TOTAL_LEVEL_MASK; + else if (newvol < 0) + newvol = 0; + + n = OPL3_TOTAL_LEVEL_MASK - (newvol & OPL3_TOTAL_LEVEL_MASK); + + *volbyte = (*volbyte & OPL3_KSL_MASK) | (n & OPL3_TOTAL_LEVEL_MASK); +} + +/* + * Converts the note frequency to block and fnum values for the FM chip + */ +static short opl3_note_table[16] = +{ + 305, 323, /* for pitch bending, -2 semitones */ + 343, 363, 385, 408, 432, 458, 485, 514, 544, 577, 611, 647, + 686, 726 /* for pitch bending, +2 semitones */ +}; + +static void snd_opl3_calc_pitch(unsigned char *fnum, unsigned char *blocknum, + int note, snd_midi_channel_t *chan) +{ + int block = ((note / 12) & 0x07) - 1; + int idx = (note % 12) + 2; + int freq; + + if (chan->midi_pitchbend) { + int pitchbend = chan->midi_pitchbend; + int segment; + + if (pitchbend > 0x1FFF) + pitchbend = 0x1FFF; + + segment = pitchbend / 0x1000; + freq = opl3_note_table[idx+segment]; + freq += ((opl3_note_table[idx+segment+1] - freq) * + (pitchbend % 0x1000)) / 0x1000; + } else { + freq = opl3_note_table[idx]; + } + + *fnum = (unsigned char) freq; + *blocknum = ((freq >> 8) & OPL3_FNUM_HIGH_MASK) | + ((block << 2) & OPL3_BLOCKNUM_MASK); +} + + +#ifdef DEBUG_ALLOC +static void debug_alloc(opl3_t *opl3, char *s, int voice) { + int i; + char *str = "x.24"; + + printk("time %.5i: %s [%.2i]: ", opl3->use_time, s, voice); + for (i = 0; i < opl3->max_voices; i++) + printk("%c", *(str + opl3->voices[i].state + 1)); + printk("\n"); +} +#endif + +/* + * Get a FM voice (channel) to play a note on. + */ +static int opl3_get_voice(opl3_t *opl3, int instr_4op, + snd_midi_channel_t *chan) { + int chan_4op_1; /* first voice for 4op instrument */ + int chan_4op_2; /* second voice for 4op instrument */ + + snd_opl3_voice_t *vp, *vp2; + unsigned int voice_time; + int i; + +#ifdef DEBUG_ALLOC + char *alloc_type[3] = { "FREE ", "CHEAP ", "EXPENSIVE" }; +#endif + + /* This is our "allocation cost" table */ + enum { + FREE = 0, CHEAP, EXPENSIVE, END + }; + + /* Keeps track of what we are finding */ + struct best { + unsigned int time; + int voice; + } best[END]; + struct best *bp; + + for (i = 0; i < END; i++) { + best[i].time = (unsigned int)(-1); /* XXX MAX_?INT really */; + best[i].voice = -1; + } + + /* Look through all the channels for the most suitable. */ + for (i = 0; i < opl3->max_voices; i++) { + vp = &opl3->voices[i]; + + if (vp->state == SNDRV_OPL3_ST_NOT_AVAIL) + /* skip unavailable channels, allocated by + drum voices or by bounded 4op voices) */ + continue; + + voice_time = vp->time; + bp = best; + + chan_4op_1 = ((i < 3) || (i > 8 && i < 12)); + chan_4op_2 = ((i > 2 && i < 6) || (i > 11 && i < 15)); + if (instr_4op) { + /* allocate 4op voice */ + /* skip channels unavailable to 4op instrument */ + if (!chan_4op_1) + continue; + + if (vp->state) + /* kill one voice, CHEAP */ + bp++; + /* get state of bounded 2op channel + to be allocated for 4op instrument */ + vp2 = &opl3->voices[i + 3]; + if (vp2->state == SNDRV_OPL3_ST_ON_2OP) { + /* kill two voices, EXPENSIVE */ + bp++; + voice_time = (voice_time > vp->time) ? + voice_time : vp->time; + } + } else { + /* allocate 2op voice */ + if ((chan_4op_1) || (chan_4op_2)) + /* use bounded channels for 2op, CHEAP */ + bp++; + else if (vp->state) + /* kill one voice on 2op channel, CHEAP */ + bp++; + /* raise kill cost to EXPENSIVE for all channels */ + if (vp->state) + bp++; + } + if (voice_time < bp->time) { + bp->time = voice_time; + bp->voice = i; + } + } + + for (i = 0; i < END; i++) { + if (best[i].voice >= 0) { +#ifdef DEBUG_ALLOC + printk("%s %iop allocation on voice %i\n", + alloc_type[i], instr_4op ? 4 : 2, + best[i].voice); +#endif + return best[i].voice; + } + } + /* not found */ + return -1; +} + +/* ------------------------------ */ + +/* + * System timer interrupt function + */ +void snd_opl3_timer_func(unsigned long data) +{ + + opl3_t *opl3 = (opl3_t *)data; + int again = 0; + int i; + + spin_lock(&opl3->sys_timer_lock); + for (i = 0; i < opl3->max_voices; i++) { + snd_opl3_voice_t *vp = &opl3->voices[i]; + if (vp->state > 0 && vp->note_off_check) { + if (vp->note_off == jiffies) + snd_opl3_note_off(opl3, vp->note, 0, vp->chan); + else + again++; + } + } + if (again) { + opl3->tlist.expires = jiffies + 1; /* invoke again */ + add_timer(&opl3->tlist); + } else { + opl3->sys_timer_status = 0; + } + spin_unlock(&opl3->sys_timer_lock); +} + +/* + * Start system timer + */ +static void snd_opl3_start_timer(opl3_t *opl3) +{ + unsigned long flags; + spin_lock_irqsave(&opl3->sys_timer_lock, flags); + if (! opl3->sys_timer_status) { + opl3->tlist.expires = jiffies + 1; + add_timer(&opl3->tlist); + opl3->sys_timer_status = 1; + } + spin_unlock_irqrestore(&opl3->sys_timer_lock, flags); +} + +/* ------------------------------ */ + + +static int snd_opl3_oss_map[MAX_OPL3_VOICES] = { + 0, 1, 2, 9, 10, 11, 6, 7, 8, 15, 16, 17, 3, 4 ,5, 12, 13, 14 +}; + +/* + * Start a note. + */ +void snd_opl3_note_on(void *p, int note, int vel, snd_midi_channel_t *chan) +{ + opl3_t *opl3; + snd_seq_instr_t wanted; + snd_seq_kinstr_t *kinstr; + int instr_4op; + + int voice; + snd_opl3_voice_t *vp, *vp2; + unsigned short connect_mask; + unsigned char connection; + unsigned char vol_op[4]; + + int extra_prg = 0; + + unsigned short reg_side; + unsigned char op_offset; + unsigned char voice_offset; + unsigned short opl3_reg; + unsigned char reg_val; + + int key = note; + unsigned char fnum, blocknum; + int i; + + fm_instrument_t *fm; + unsigned long flags; + + opl3 = p; + +#ifdef DEBUG_MIDI + snd_printk("Note on, ch %i, inst %i, note %i, vel %i\n", + chan->number, chan->midi_program, note, vel); +#endif + wanted.cluster = 0; + wanted.std = SNDRV_SEQ_INSTR_TYPE2_OPL2_3; + + /* in SYNTH mode, application takes care of voices */ + /* in SEQ mode, drum voice numbers are notes on drum channel */ + if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) { + if (chan->drum_channel) { + /* percussion instruments are located in bank 128 */ + wanted.bank = 128; + wanted.prg = note; + } else { + wanted.bank = chan->gm_bank_select; + wanted.prg = chan->midi_program; + } + } else { + /* Prepare for OSS mode */ + if (chan->number >= MAX_OPL3_VOICES) + return; + + /* OSS instruments are located in bank 127 */ + wanted.bank = 127; + wanted.prg = chan->midi_program; + } + + spin_lock_irqsave(&opl3->voice_lock, flags); + + if (use_internal_drums) { + snd_opl3_drum_switch(opl3, note, vel, 1, chan); + spin_unlock_irqrestore(&opl3->voice_lock, flags); + return; + } + + __extra_prg: + kinstr = snd_seq_instr_find(opl3->ilist, &wanted, 1, 0); + if (kinstr == NULL) { + spin_unlock_irqrestore(&opl3->voice_lock, flags); + return; + } + + fm = KINSTR_DATA(kinstr); + + switch (fm->type) { + case FM_PATCH_OPL2: + instr_4op = 0; + break; + case FM_PATCH_OPL3: + if (opl3->hardware >= OPL3_HW_OPL3) { + instr_4op = 1; + break; + } + default: + snd_seq_instr_free_use(opl3->ilist, kinstr); + spin_unlock_irqrestore(&opl3->voice_lock, flags); + return; + } + +#ifdef DEBUG_MIDI + snd_printk(" --> OPL%i instrument: %s\n", + instr_4op ? 3 : 2, kinstr->name); +#endif + /* in SYNTH mode, application takes care of voices */ + /* in SEQ mode, allocate voice on free OPL3 channel */ + if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) { + voice = opl3_get_voice(opl3, instr_4op, chan); + } else { + /* remap OSS voice */ + voice = snd_opl3_oss_map[chan->number]; + } + + if (voice < MAX_OPL2_VOICES) { + /* Left register block for voices 0 .. 8 */ + reg_side = OPL3_LEFT; + voice_offset = voice; + connect_mask = (OPL3_LEFT_4OP_0 << voice_offset) & 0x07; + } else { + /* Right register block for voices 9 .. 17 */ + reg_side = OPL3_RIGHT; + voice_offset = voice - MAX_OPL2_VOICES; + connect_mask = (OPL3_RIGHT_4OP_0 << voice_offset) & 0x38; + } + + /* kill voice on channel */ + vp = &opl3->voices[voice]; + if (vp->state > 0) { + opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset); + reg_val = vp->keyon_reg & ~OPL3_KEYON_BIT; + opl3->command(opl3, opl3_reg, reg_val); + } + if (instr_4op) { + vp2 = &opl3->voices[voice + 3]; + if (vp->state > 0) { + opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + + voice_offset + 3); + reg_val = vp->keyon_reg & ~OPL3_KEYON_BIT; + opl3->command(opl3, opl3_reg, reg_val); + } + } + + /* set connection register */ + if (instr_4op) { + if ((opl3->connection_reg ^ connect_mask) & connect_mask) { + opl3->connection_reg |= connect_mask; + /* set connection bit */ + opl3_reg = OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT; + opl3->command(opl3, opl3_reg, opl3->connection_reg); + } + } else { + if ((opl3->connection_reg ^ ~connect_mask) & connect_mask) { + opl3->connection_reg &= ~connect_mask; + /* clear connection bit */ + opl3_reg = OPL3_RIGHT | OPL3_REG_CONNECTION_SELECT; + opl3->command(opl3, opl3_reg, opl3->connection_reg); + } + } + +#ifdef DEBUG_MIDI + snd_printk(" --> setting OPL3 connection: 0x%x\n", + opl3->connection_reg); +#endif + /* + * calculate volume depending on connection + * between FM operators (see include/opl3.h) + */ + for (i = 0; i < (instr_4op ? 4 : 2); i++) + vol_op[i] = fm->op[i].ksl_level; + + connection = fm->feedback_connection[0] & 0x01; + if (instr_4op) { + connection <<= 1; + connection |= fm->feedback_connection[1] & 0x01; + + snd_opl3_calc_volume(&vol_op[3], vel, chan); + switch (connection) { + case 0x03: + snd_opl3_calc_volume(&vol_op[2], vel, chan); + /* fallthru */ + case 0x02: + snd_opl3_calc_volume(&vol_op[0], vel, chan); + break; + case 0x01: + snd_opl3_calc_volume(&vol_op[1], vel, chan); + } + } else { + snd_opl3_calc_volume(&vol_op[1], vel, chan); + if (connection) + snd_opl3_calc_volume(&vol_op[0], vel, chan); + } + + /* Program the FM voice characteristics */ + for (i = 0; i < (instr_4op ? 4 : 2); i++) { +#ifdef DEBUG_MIDI + snd_printk(" --> programming operator %i\n", i); +#endif + op_offset = snd_opl3_regmap[voice_offset][i]; + + /* Set OPL3 AM_VIB register of requested voice/operator */ + reg_val = fm->op[i].am_vib; + opl3_reg = reg_side | (OPL3_REG_AM_VIB + op_offset); + opl3->command(opl3, opl3_reg, reg_val); + + /* Set OPL3 KSL_LEVEL register of requested voice/operator */ + reg_val = vol_op[i]; + opl3_reg = reg_side | (OPL3_REG_KSL_LEVEL + op_offset); + opl3->command(opl3, opl3_reg, reg_val); + + /* Set OPL3 ATTACK_DECAY register of requested voice/operator */ + reg_val = fm->op[i].attack_decay; + opl3_reg = reg_side | (OPL3_REG_ATTACK_DECAY + op_offset); + opl3->command(opl3, opl3_reg, reg_val); + + /* Set OPL3 SUSTAIN_RELEASE register of requested voice/operator */ + reg_val = fm->op[i].sustain_release; + opl3_reg = reg_side | (OPL3_REG_SUSTAIN_RELEASE + op_offset); + opl3->command(opl3, opl3_reg, reg_val); + + /* Select waveform */ + reg_val = fm->op[i].wave_select; + opl3_reg = reg_side | (OPL3_REG_WAVE_SELECT + op_offset); + opl3->command(opl3, opl3_reg, reg_val); + } + + /* Set operator feedback and 2op inter-operator connection */ + reg_val = fm->feedback_connection[0]; + /* Set output voice connection */ + reg_val |= OPL3_STEREO_BITS; + if (chan->gm_pan < 43) + reg_val &= ~OPL3_VOICE_TO_RIGHT; + if (chan->gm_pan > 85) + reg_val &= ~OPL3_VOICE_TO_LEFT; + opl3_reg = reg_side | (OPL3_REG_FEEDBACK_CONNECTION + voice_offset); + opl3->command(opl3, opl3_reg, reg_val); + + if (instr_4op) { + /* Set 4op inter-operator connection */ + reg_val = fm->feedback_connection[1] & OPL3_CONNECTION_BIT; + /* Set output voice connection */ + reg_val |= OPL3_STEREO_BITS; + if (chan->gm_pan < 43) + reg_val &= ~OPL3_VOICE_TO_RIGHT; + if (chan->gm_pan > 85) + reg_val &= ~OPL3_VOICE_TO_LEFT; + opl3_reg = reg_side | (OPL3_REG_FEEDBACK_CONNECTION + + voice_offset + 3); + opl3->command(opl3, opl3_reg, reg_val); + } + + /* + * Special treatment of percussion notes for fm: + * Requested pitch is really program, and pitch for + * device is whatever was specified in the patch library. + */ + if (fm->fix_key) + note = fm->fix_key; + /* + * use transpose if defined in patch library + */ + if (fm->trnsps) + note += (fm->trnsps - 64); + + snd_opl3_calc_pitch(&fnum, &blocknum, note, chan); + + /* Set OPL3 FNUM_LOW register of requested voice */ + opl3_reg = reg_side | (OPL3_REG_FNUM_LOW + voice_offset); + opl3->command(opl3, opl3_reg, fnum); + + opl3->voices[voice].keyon_reg = blocknum; + + /* Set output sound flag */ + blocknum |= OPL3_KEYON_BIT; + +#ifdef DEBUG_MIDI + snd_printk(" --> trigger voice %i\n", voice); +#endif + /* Set OPL3 KEYON_BLOCK register of requested voice */ + opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset); + opl3->command(opl3, opl3_reg, blocknum); + + /* kill note after fixed duration (in centiseconds) */ + if (fm->fix_dur) { + opl3->voices[voice].note_off = jiffies + + (fm->fix_dur * HZ) / 100; + snd_opl3_start_timer(opl3); + opl3->voices[voice].note_off_check = 1; + } else + opl3->voices[voice].note_off_check = 0; + + /* get extra pgm, but avoid possible loops */ + extra_prg = (extra_prg) ? 0 : fm->modes; + + snd_seq_instr_free_use(opl3->ilist, kinstr); + + /* do the bookkeeping */ + vp->time = opl3->use_time++; + vp->note = key; + vp->chan = chan; + + if (instr_4op) { + vp->state = SNDRV_OPL3_ST_ON_4OP; + + vp2 = &opl3->voices[voice + 3]; + vp2->time = opl3->use_time++; + vp2->note = key; + vp2->chan = chan; + vp2->state = SNDRV_OPL3_ST_NOT_AVAIL; + } else { + if (vp->state == SNDRV_OPL3_ST_ON_4OP) { + /* 4op killed by 2op, release bounded voice */ + vp2 = &opl3->voices[voice + 3]; + vp2->time = opl3->use_time++; + vp2->state = SNDRV_OPL3_ST_OFF; + } + vp->state = SNDRV_OPL3_ST_ON_2OP; + } + +#ifdef DEBUG_ALLOC + debug_alloc(opl3, "note on ", voice); +#endif + + /* allocate extra program if specified in patch library */ + if (extra_prg) { + if (extra_prg > 128) { + wanted.bank = 128; + /* percussions start at 35 */ + wanted.prg = extra_prg - 128 + 35 - 1; + } else { + wanted.bank = 0; + wanted.prg = extra_prg - 1; + } +#ifdef DEBUG_MIDI + snd_printk(" *** allocating extra program\n"); +#endif + goto __extra_prg; + } + spin_unlock_irqrestore(&opl3->voice_lock, flags); +} + +static void snd_opl3_kill_voice(opl3_t *opl3, int voice) +{ + unsigned short reg_side; + unsigned char voice_offset; + unsigned short opl3_reg; + + snd_opl3_voice_t *vp, *vp2; + + snd_assert(voice < MAX_OPL3_VOICES, return); + + vp = &opl3->voices[voice]; + if (voice < MAX_OPL2_VOICES) { + /* Left register block for voices 0 .. 8 */ + reg_side = OPL3_LEFT; + voice_offset = voice; + } else { + /* Right register block for voices 9 .. 17 */ + reg_side = OPL3_RIGHT; + voice_offset = voice - MAX_OPL2_VOICES; + } + + /* kill voice */ +#ifdef DEBUG_MIDI + snd_printk(" --> kill voice %i\n", voice); +#endif + opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset); + /* clear Key ON bit */ + opl3->command(opl3, opl3_reg, vp->keyon_reg); + + /* do the bookkeeping */ + vp->time = opl3->use_time++; + + if (vp->state == SNDRV_OPL3_ST_ON_4OP) { + vp2 = &opl3->voices[voice + 3]; + + vp2->time = opl3->use_time++; + vp2->state = SNDRV_OPL3_ST_OFF; + } + vp->state = SNDRV_OPL3_ST_OFF; +#ifdef DEBUG_ALLOC + debug_alloc(opl3, "note off", voice); +#endif + +} + +/* + * Release a note in response to a midi note off. + */ +void snd_opl3_note_off(void *p, int note, int vel, snd_midi_channel_t *chan) +{ + opl3_t *opl3; + + int voice; + snd_opl3_voice_t *vp; + + unsigned long flags; + + opl3 = p; + +#ifdef DEBUG_MIDI + snd_printk("Note off, ch %i, inst %i, note %i\n", + chan->number, chan->midi_program, note); +#endif + + spin_lock_irqsave(&opl3->voice_lock, flags); + + if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) { + if (chan->drum_channel && use_internal_drums) { + snd_opl3_drum_switch(opl3, note, vel, 0, chan); + spin_unlock_irqrestore(&opl3->voice_lock, flags); + return; + } + /* this loop will hopefully kill all extra voices, because + they are grouped by the same channel and note values */ + for (voice = 0; voice < opl3->max_voices; voice++) { + vp = &opl3->voices[voice]; + if (vp->state > 0 && vp->chan == chan && vp->note == note) { + snd_opl3_kill_voice(opl3, voice); + } + } + } else { + /* remap OSS voices */ + if (chan->number < MAX_OPL3_VOICES) { + voice = snd_opl3_oss_map[chan->number]; + snd_opl3_kill_voice(opl3, voice); + } + } + spin_unlock_irqrestore(&opl3->voice_lock, flags); +} + +/* + * key pressure change + */ +void snd_opl3_key_press(void *p, int note, int vel, snd_midi_channel_t *chan) +{ + opl3_t *opl3; + + opl3 = p; +#ifdef DEBUG_MIDI + snd_printk("Key pressure, ch#: %i, inst#: %i\n", + chan->number, chan->midi_program); +#endif +} + +/* + * terminate note + */ +void snd_opl3_terminate_note(void *p, int note, snd_midi_channel_t *chan) +{ + opl3_t *opl3; + + opl3 = p; +#ifdef DEBUG_MIDI + snd_printk("Terminate note, ch#: %i, inst#: %i\n", + chan->number, chan->midi_program); +#endif +} + +static void snd_opl3_update_pitch(opl3_t *opl3, int voice) +{ + unsigned short reg_side; + unsigned char voice_offset; + unsigned short opl3_reg; + + unsigned char fnum, blocknum; + + snd_opl3_voice_t *vp; + + snd_assert(voice < MAX_OPL3_VOICES, return); + + vp = &opl3->voices[voice]; + if (vp->chan == NULL) + return; /* not allocated? */ + + if (voice < MAX_OPL2_VOICES) { + /* Left register block for voices 0 .. 8 */ + reg_side = OPL3_LEFT; + voice_offset = voice; + } else { + /* Right register block for voices 9 .. 17 */ + reg_side = OPL3_RIGHT; + voice_offset = voice - MAX_OPL2_VOICES; + } + + snd_opl3_calc_pitch(&fnum, &blocknum, vp->note, vp->chan); + + /* Set OPL3 FNUM_LOW register of requested voice */ + opl3_reg = reg_side | (OPL3_REG_FNUM_LOW + voice_offset); + opl3->command(opl3, opl3_reg, fnum); + + vp->keyon_reg = blocknum; + + /* Set output sound flag */ + blocknum |= OPL3_KEYON_BIT; + + /* Set OPL3 KEYON_BLOCK register of requested voice */ + opl3_reg = reg_side | (OPL3_REG_KEYON_BLOCK + voice_offset); + opl3->command(opl3, opl3_reg, blocknum); + + vp->time = opl3->use_time++; +} + +/* + * Update voice pitch controller + */ +static void snd_opl3_pitch_ctrl(opl3_t *opl3, snd_midi_channel_t *chan) +{ + int voice; + snd_opl3_voice_t *vp; + + unsigned long flags; + + spin_lock_irqsave(&opl3->voice_lock, flags); + + if (opl3->synth_mode == SNDRV_OPL3_MODE_SEQ) { + for (voice = 0; voice < opl3->max_voices; voice++) { + vp = &opl3->voices[voice]; + if (vp->state > 0 && vp->chan == chan) { + snd_opl3_update_pitch(opl3, voice); + } + } + } else { + /* remap OSS voices */ + if (chan->number < MAX_OPL3_VOICES) { + voice = snd_opl3_oss_map[chan->number]; + snd_opl3_update_pitch(opl3, voice); + } + } + spin_unlock_irqrestore(&opl3->voice_lock, flags); +} + +/* + * Deal with a controler type event. This includes all types of + * control events, not just the midi controllers + */ +void snd_opl3_control(void *p, int type, snd_midi_channel_t *chan) +{ + opl3_t *opl3; + + opl3 = p; +#ifdef DEBUG_MIDI + snd_printk("Controller, TYPE = %i, ch#: %i, inst#: %i\n", + type, chan->number, chan->midi_program); +#endif + + switch (type) { + case MIDI_CTL_MSB_MODWHEEL: + if (chan->control[MIDI_CTL_MSB_MODWHEEL] > 63) + opl3->drum_reg |= OPL3_VIBRATO_DEPTH; + else + opl3->drum_reg &= ~OPL3_VIBRATO_DEPTH; + opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, + opl3->drum_reg); + break; + case MIDI_CTL_E2_TREMOLO_DEPTH: + if (chan->control[MIDI_CTL_E2_TREMOLO_DEPTH] > 63) + opl3->drum_reg |= OPL3_TREMOLO_DEPTH; + else + opl3->drum_reg &= ~OPL3_TREMOLO_DEPTH; + opl3->command(opl3, OPL3_LEFT | OPL3_REG_PERCUSSION, + opl3->drum_reg); + break; + case MIDI_CTL_PITCHBEND: + snd_opl3_pitch_ctrl(opl3, chan); + break; + } +} + +/* + * NRPN events + */ +void snd_opl3_nrpn(void *p, snd_midi_channel_t *chan, + snd_midi_channel_set_t *chset) +{ + opl3_t *opl3; + + opl3 = p; +#ifdef DEBUG_MIDI + snd_printk("NRPN, ch#: %i, inst#: %i\n", + chan->number, chan->midi_program); +#endif +} + +/* + * receive sysex + */ +void snd_opl3_sysex(void *p, unsigned char *buf, int len, + int parsed, snd_midi_channel_set_t *chset) +{ + opl3_t *opl3; + + opl3 = p; +#ifdef DEBUG_MIDI + snd_printk("SYSEX\n"); +#endif +} diff --git a/sound/drivers/opl3/opl3_oss.c b/sound/drivers/opl3/opl3_oss.c new file mode 100644 index 00000000000..33da334ae98 --- /dev/null +++ b/sound/drivers/opl3/opl3_oss.c @@ -0,0 +1,356 @@ +/* + * Interface for OSS sequencer emulation + * + * Copyright (C) 2000 Uros Bizjak <uros@kss-loka.si> + * + * 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/slab.h> + +static int snd_opl3_open_seq_oss(snd_seq_oss_arg_t *arg, void *closure); +static int snd_opl3_close_seq_oss(snd_seq_oss_arg_t *arg); +static int snd_opl3_ioctl_seq_oss(snd_seq_oss_arg_t *arg, unsigned int cmd, unsigned long ioarg); +static int snd_opl3_load_patch_seq_oss(snd_seq_oss_arg_t *arg, int format, const char __user *buf, int offs, int count); +static int snd_opl3_reset_seq_oss(snd_seq_oss_arg_t *arg); + +/* */ + +static inline mm_segment_t snd_enter_user(void) +{ + mm_segment_t fs = get_fs(); + set_fs(get_ds()); + return fs; +} + +static inline void snd_leave_user(mm_segment_t fs) +{ + set_fs(fs); +} + +/* operators */ + +extern snd_midi_op_t opl3_ops; + +static snd_seq_oss_callback_t oss_callback = { + .owner = THIS_MODULE, + .open = snd_opl3_open_seq_oss, + .close = snd_opl3_close_seq_oss, + .ioctl = snd_opl3_ioctl_seq_oss, + .load_patch = snd_opl3_load_patch_seq_oss, + .reset = snd_opl3_reset_seq_oss, +}; + +static int snd_opl3_oss_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_OSS) + snd_midi_process_event(&opl3_ops, ev, opl3->oss_chset); + return 0; +} + +/* ------------------------------ */ + +static void snd_opl3_oss_free_port(void *private_data) +{ + opl3_t *opl3 = private_data; + + snd_midi_channel_free_set(opl3->oss_chset); +} + +static int snd_opl3_oss_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->oss_chset = snd_midi_channel_alloc_set(voices); + if (opl3->oss_chset == NULL) + return -ENOMEM; + opl3->oss_chset->private_data = opl3; + + memset(&callbacks, 0, sizeof(callbacks)); + callbacks.owner = THIS_MODULE; + callbacks.event_input = snd_opl3_oss_event_input; + callbacks.private_free = snd_opl3_oss_free_port; + callbacks.private_data = opl3; + + opl_ver = (opl3->hardware & OPL3_HW_MASK) >> 8; + sprintf(name, "OPL%i OSS Port", opl_ver); + + opl3->oss_chset->client = opl3->seq_client; + opl3->oss_chset->port = snd_seq_event_port_attach(opl3->seq_client, &callbacks, + SNDRV_SEQ_PORT_CAP_WRITE, + SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | + SNDRV_SEQ_PORT_TYPE_MIDI_GM | + SNDRV_SEQ_PORT_TYPE_SYNTH, + voices, voices, + name); + if (opl3->oss_chset->port < 0) { + snd_midi_channel_free_set(opl3->oss_chset); + return opl3->oss_chset->port; + } + return 0; +} + +/* ------------------------------ */ + +/* register OSS synth */ +void snd_opl3_init_seq_oss(opl3_t *opl3, char *name) +{ + snd_seq_oss_reg_t *arg; + snd_seq_device_t *dev; + + if (snd_seq_device_new(opl3->card, 0, SNDRV_SEQ_DEV_ID_OSS, + sizeof(snd_seq_oss_reg_t), &dev) < 0) + return; + + opl3->oss_seq_dev = dev; + strlcpy(dev->name, name, sizeof(dev->name)); + arg = SNDRV_SEQ_DEVICE_ARGPTR(dev); + arg->type = SYNTH_TYPE_FM; + if (opl3->hardware < OPL3_HW_OPL3) { + arg->subtype = FM_TYPE_ADLIB; + arg->nvoices = MAX_OPL2_VOICES; + } else { + arg->subtype = FM_TYPE_OPL3; + arg->nvoices = MAX_OPL3_VOICES; + } + arg->oper = oss_callback; + arg->private_data = opl3; + + snd_opl3_oss_create_port(opl3); + + /* register to OSS synth table */ + snd_device_register(opl3->card, dev); +} + +/* unregister */ +void snd_opl3_free_seq_oss(opl3_t *opl3) +{ + if (opl3->oss_seq_dev) { + snd_device_free(opl3->card, opl3->oss_seq_dev); + opl3->oss_seq_dev = NULL; + } +} + +/* ------------------------------ */ + +/* open OSS sequencer */ +static int snd_opl3_open_seq_oss(snd_seq_oss_arg_t *arg, void *closure) +{ + opl3_t *opl3 = closure; + int err; + + snd_assert(arg != NULL, return -ENXIO); + + if ((err = snd_opl3_synth_setup(opl3)) < 0) + return err; + + /* fill the argument data */ + arg->private_data = opl3; + arg->addr.client = opl3->oss_chset->client; + arg->addr.port = opl3->oss_chset->port; + + if ((err = snd_opl3_synth_use_inc(opl3)) < 0) + return err; + + opl3->synth_mode = SNDRV_OPL3_MODE_SYNTH; + return 0; +} + +/* close OSS sequencer */ +static int snd_opl3_close_seq_oss(snd_seq_oss_arg_t *arg) +{ + opl3_t *opl3; + + snd_assert(arg != NULL, return -ENXIO); + opl3 = arg->private_data; + + snd_opl3_synth_cleanup(opl3); + + snd_opl3_synth_use_dec(opl3); + return 0; +} + +/* load patch */ + +/* offsets for SBI params */ +#define AM_VIB 0 +#define KSL_LEVEL 2 +#define ATTACK_DECAY 4 +#define SUSTAIN_RELEASE 6 +#define WAVE_SELECT 8 + +/* offset for SBI instrument */ +#define CONNECTION 10 +#define OFFSET_4OP 11 + +/* from sound_config.h */ +#define SBFM_MAXINSTR 256 + +static int snd_opl3_load_patch_seq_oss(snd_seq_oss_arg_t *arg, int format, + const char __user *buf, int offs, int count) +{ + opl3_t *opl3; + int err = -EINVAL; + + snd_assert(arg != NULL, return -ENXIO); + opl3 = arg->private_data; + + if ((format == FM_PATCH) || (format == OPL3_PATCH)) { + struct sbi_instrument sbi; + + size_t size; + snd_seq_instr_header_t *put; + snd_seq_instr_data_t *data; + fm_xinstrument_t *xinstr; + + snd_seq_event_t ev; + int i; + + mm_segment_t fs; + + if (count < (int)sizeof(sbi)) { + snd_printk("FM Error: Patch record too short\n"); + return -EINVAL; + } + if (copy_from_user(&sbi, buf, sizeof(sbi))) + return -EFAULT; + + if (sbi.channel < 0 || sbi.channel >= SBFM_MAXINSTR) { + snd_printk("FM Error: Invalid instrument number %d\n", sbi.channel); + return -EINVAL; + } + + size = sizeof(*put) + sizeof(fm_xinstrument_t); + put = kcalloc(1, size, GFP_KERNEL); + if (put == NULL) + return -ENOMEM; + /* build header */ + data = &put->data; + data->type = SNDRV_SEQ_INSTR_ATYPE_DATA; + strcpy(data->data.format, SNDRV_SEQ_INSTR_ID_OPL2_3); + /* build data section */ + xinstr = (fm_xinstrument_t *)(data + 1); + xinstr->stype = FM_STRU_INSTR; + + for (i = 0; i < 2; i++) { + xinstr->op[i].am_vib = sbi.operators[AM_VIB + i]; + xinstr->op[i].ksl_level = sbi.operators[KSL_LEVEL + i]; + xinstr->op[i].attack_decay = sbi.operators[ATTACK_DECAY + i]; + xinstr->op[i].sustain_release = sbi.operators[SUSTAIN_RELEASE + i]; + xinstr->op[i].wave_select = sbi.operators[WAVE_SELECT + i]; + } + xinstr->feedback_connection[0] = sbi.operators[CONNECTION]; + + if (format == OPL3_PATCH) { + xinstr->type = FM_PATCH_OPL3; + for (i = 0; i < 2; i++) { + xinstr->op[i+2].am_vib = sbi.operators[OFFSET_4OP + AM_VIB + i]; + xinstr->op[i+2].ksl_level = sbi.operators[OFFSET_4OP + KSL_LEVEL + i]; + xinstr->op[i+2].attack_decay = sbi.operators[OFFSET_4OP + ATTACK_DECAY + i]; + xinstr->op[i+2].sustain_release = sbi.operators[OFFSET_4OP + SUSTAIN_RELEASE + i]; + xinstr->op[i+2].wave_select = sbi.operators[OFFSET_4OP + WAVE_SELECT + i]; + } + xinstr->feedback_connection[1] = sbi.operators[OFFSET_4OP + CONNECTION]; + } else { + xinstr->type = FM_PATCH_OPL2; + } + + put->id.instr.std = SNDRV_SEQ_INSTR_TYPE2_OPL2_3; + put->id.instr.bank = 127; + put->id.instr.prg = sbi.channel; + put->cmd = SNDRV_SEQ_INSTR_PUT_CMD_CREATE; + + memset (&ev, 0, sizeof(ev)); + ev.source.client = SNDRV_SEQ_CLIENT_OSS; + ev.dest = arg->addr; + + ev.flags = SNDRV_SEQ_EVENT_LENGTH_VARUSR; + ev.queue = SNDRV_SEQ_QUEUE_DIRECT; + + fs = snd_enter_user(); + __again: + ev.type = SNDRV_SEQ_EVENT_INSTR_PUT; + ev.data.ext.len = size; + ev.data.ext.ptr = put; + + err = snd_seq_instr_event(&opl3->fm_ops, opl3->ilist, &ev, + opl3->seq_client, 0, 0); + if (err == -EBUSY) { + snd_seq_instr_header_t remove; + + memset (&remove, 0, sizeof(remove)); + remove.cmd = SNDRV_SEQ_INSTR_FREE_CMD_SINGLE; + remove.id.instr = put->id.instr; + + /* remove instrument */ + ev.type = SNDRV_SEQ_EVENT_INSTR_FREE; + ev.data.ext.len = sizeof(remove); + ev.data.ext.ptr = &remove; + + snd_seq_instr_event(&opl3->fm_ops, opl3->ilist, &ev, + opl3->seq_client, 0, 0); + goto __again; + } + snd_leave_user(fs); + + kfree(put); + } + return err; +} + +/* ioctl */ +static int snd_opl3_ioctl_seq_oss(snd_seq_oss_arg_t *arg, unsigned int cmd, + unsigned long ioarg) +{ + opl3_t *opl3; + + snd_assert(arg != NULL, return -ENXIO); + opl3 = arg->private_data; + switch (cmd) { + case SNDCTL_FM_LOAD_INSTR: + snd_printk("OPL3: Obsolete ioctl(SNDCTL_FM_LOAD_INSTR) used. Fix the program.\n"); + return -EINVAL; + + case SNDCTL_SYNTH_MEMAVL: + return 0x7fffffff; + + case SNDCTL_FM_4OP_ENABLE: + // handled automatically by OPL instrument type + return 0; + + default: + return -EINVAL; + } + return 0; +} + +/* reset device */ +static int snd_opl3_reset_seq_oss(snd_seq_oss_arg_t *arg) +{ + opl3_t *opl3; + + snd_assert(arg != NULL, return -ENXIO); + opl3 = arg->private_data; + + return 0; +} diff --git a/sound/drivers/opl3/opl3_seq.c b/sound/drivers/opl3/opl3_seq.c new file mode 100644 index 00000000000..136964b844d --- /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) diff --git a/sound/drivers/opl3/opl3_synth.c b/sound/drivers/opl3/opl3_synth.c new file mode 100644 index 00000000000..04f9f955e5b --- /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; +} diff --git a/sound/drivers/opl3/opl3_voice.h b/sound/drivers/opl3/opl3_voice.h new file mode 100644 index 00000000000..63346a5c349 --- /dev/null +++ b/sound/drivers/opl3/opl3_voice.h @@ -0,0 +1,52 @@ +#ifndef __OPL3_VOICE_H +#define __OPL3_VOICE_H + +/* + * Copyright (c) 2000 Uros Bizjak <uros@kss-loka.si> + * + * 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> + +/* Prototypes for opl3_seq.c */ +int snd_opl3_synth_use_inc(opl3_t * opl3); +void snd_opl3_synth_use_dec(opl3_t * opl3); +int snd_opl3_synth_setup(opl3_t * opl3); +void snd_opl3_synth_cleanup(opl3_t * opl3); + +/* Prototypes for opl3_midi.c */ +void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan); +void snd_opl3_note_off(void *p, int note, int vel, struct snd_midi_channel *chan); +void snd_opl3_key_press(void *p, int note, int vel, struct snd_midi_channel *chan); +void snd_opl3_terminate_note(void *p, int note, snd_midi_channel_t *chan); +void snd_opl3_control(void *p, int type, struct snd_midi_channel *chan); +void snd_opl3_nrpn(void *p, snd_midi_channel_t *chan, snd_midi_channel_set_t *chset); +void snd_opl3_sysex(void *p, unsigned char *buf, int len, int parsed, snd_midi_channel_set_t *chset); + +void snd_opl3_calc_volume(unsigned char *reg, int vel, snd_midi_channel_t *chan); +void snd_opl3_timer_func(unsigned long data); + +/* Prototypes for opl3_drums.c */ +void snd_opl3_load_drums(opl3_t *opl3); +void snd_opl3_drum_switch(opl3_t *opl3, int note, int on_off, int vel, snd_midi_channel_t *chan); + +/* Prototypes for opl3_oss.c */ +#ifdef CONFIG_SND_SEQUENCER_OSS +void snd_opl3_init_seq_oss(opl3_t *opl3, char *name); +void snd_opl3_free_seq_oss(opl3_t *opl3); +#endif + +#endif |