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[ALSA] opl3 - Use hwdep for patch loading

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Use the hwdep device for loading OPL2/3 patch data instead of the
messy sequencer instrument layer.
Due to this change, the sbiload program should be updated, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Takashi Iwai 2007-10-30 11:49:22 +01:00 committed by Jaroslav Kysela
parent ceac4bf34e
commit 224a033252
7 changed files with 292 additions and 159 deletions
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19
include/sound/asound_fm.h
View file

@ -104,6 +104,8 @@ struct snd_dm_fm_params {
#define SNDRV_DM_FM_IOCTL_SET_MODE _IOW('H', 0x25, int)
/* for OPL3 only */
#define SNDRV_DM_FM_IOCTL_SET_CONNECTION _IOW('H', 0x26, int)
/* SBI patch management */
#define SNDRV_DM_FM_IOCTL_CLEAR_PATCHES _IO ('H', 0x40)
#define SNDRV_DM_FM_OSS_IOCTL_RESET 0x20
#define SNDRV_DM_FM_OSS_IOCTL_PLAY_NOTE 0x21
@ -112,4 +114,21 @@ struct snd_dm_fm_params {
#define SNDRV_DM_FM_OSS_IOCTL_SET_MODE 0x24
#define SNDRV_DM_FM_OSS_IOCTL_SET_OPL 0x25
/*
* Patch Record - fixed size for write
*/
#define FM_KEY_SBI "SBI\032"
#define FM_KEY_2OP "2OP\032"
#define FM_KEY_4OP "4OP\032"
struct sbi_patch {
unsigned char prog;
unsigned char bank;
char key[4];
char name[25];
char extension[7];
unsigned char data[32];
};
#endif /* __SOUND_ASOUND_FM_H */

58
include/sound/opl3.h
View file

@ -63,7 +63,7 @@
#include "seq_oss_legacy.h"
#endif
#include "seq_device.h"
#include "ainstr_fm.h"
#include "asound_fm.h"
/*
* Register numbers for the global registers
@ -239,6 +239,47 @@
struct snd_opl3;
/*
* Instrument record, aka "Patch"
*/
/* FM operator */
struct fm_operator {
unsigned char am_vib;
unsigned char ksl_level;
unsigned char attack_decay;
unsigned char sustain_release;
unsigned char wave_select;
} __attribute__((packed));
/* Instrument data */
struct fm_instrument {
struct fm_operator op[4];
unsigned char feedback_connection[2];
unsigned char echo_delay;
unsigned char echo_atten;
unsigned char chorus_spread;
unsigned char trnsps;
unsigned char fix_dur;
unsigned char modes;
unsigned char fix_key;
};
/* type */
#define FM_PATCH_OPL2 0x01 /* OPL2 2 operators FM instrument */
#define FM_PATCH_OPL3 0x02 /* OPL3 4 operators FM instrument */
/* Instrument record */
struct fm_patch {
unsigned char prog;
unsigned char bank;
unsigned char type;
struct fm_instrument inst;
char name[24];
struct fm_patch *next;
};
/*
* A structure to keep track of each hardware voice
*/
@ -297,8 +338,8 @@ struct snd_opl3 {
struct snd_midi_channel_set * oss_chset;
#endif
struct snd_seq_kinstr_ops fm_ops;
struct snd_seq_kinstr_list *ilist;
#define OPL3_PATCH_HASH_SIZE 32
struct fm_patch *patch_table[OPL3_PATCH_HASH_SIZE];
struct snd_opl3_voice voices[MAX_OPL3_VOICES]; /* Voices (OPL3 'channel') */
int use_time; /* allocation counter */
@ -333,8 +374,19 @@ int snd_opl3_hwdep_new(struct snd_opl3 * opl3, int device, int seq_device,
int snd_opl3_open(struct snd_hwdep * hw, struct file *file);
int snd_opl3_ioctl(struct snd_hwdep * hw, struct file *file,
unsigned int cmd, unsigned long arg);
long snd_opl3_write(struct snd_hwdep *hw, const char __user *buf, long count,
loff_t *offset);
int snd_opl3_release(struct snd_hwdep * hw, struct file *file);
void snd_opl3_reset(struct snd_opl3 * opl3);
int snd_opl3_load_patch(struct snd_opl3 *opl3,
int prog, int bank, int type,
const char *name,
const unsigned char *ext,
const unsigned char *data);
struct fm_patch *snd_opl3_find_patch(struct snd_opl3 *opl3, int prog, int bank,
int create_patch);
void snd_opl3_clear_patches(struct snd_opl3 *opl3);
#endif /* __SOUND_OPL3_H */

2
sound/drivers/opl3/opl3_lib.c
View file

@ -327,6 +327,7 @@ static int snd_opl3_free(struct snd_opl3 *opl3)
snd_assert(opl3 != NULL, return -ENXIO);
if (opl3->private_free)
opl3->private_free(opl3);
snd_opl3_clear_patches(opl3);
release_and_free_resource(opl3->res_l_port);
release_and_free_resource(opl3->res_r_port);
kfree(opl3);
@ -521,6 +522,7 @@ int snd_opl3_hwdep_new(struct snd_opl3 * opl3,
/* operators - only ioctl */
hw->ops.open = snd_opl3_open;
hw->ops.ioctl = snd_opl3_ioctl;
hw->ops.write = snd_opl3_write;
hw->ops.release = snd_opl3_release;
opl3->seq_dev_num = seq_device;

41
sound/drivers/opl3/opl3_midi.c
View file

@ -289,8 +289,6 @@ static int snd_opl3_oss_map[MAX_OPL3_VOICES] = {
void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
{
struct snd_opl3 *opl3;
struct snd_seq_instr wanted;
struct snd_seq_kinstr *kinstr;
int instr_4op;
int voice;
@ -306,11 +304,13 @@ void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
unsigned char voice_offset;
unsigned short opl3_reg;
unsigned char reg_val;
unsigned char prg, bank;
int key = note;
unsigned char fnum, blocknum;
int i;
struct fm_patch *patch;
struct fm_instrument *fm;
unsigned long flags;
@ -320,19 +320,17 @@ void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
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;
bank = 128;
prg = note;
} else {
wanted.bank = chan->gm_bank_select;
wanted.prg = chan->midi_program;
bank = chan->gm_bank_select;
prg = chan->midi_program;
}
} else {
/* Prepare for OSS mode */
@ -340,8 +338,8 @@ void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
return;
/* OSS instruments are located in bank 127 */
wanted.bank = 127;
wanted.prg = chan->midi_program;
bank = 127;
prg = chan->midi_program;
}
spin_lock_irqsave(&opl3->voice_lock, flags);
@ -353,15 +351,14 @@ void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
}
__extra_prg:
kinstr = snd_seq_instr_find(opl3->ilist, &wanted, 1, 0);
if (kinstr == NULL) {
patch = snd_opl3_find_patch(opl3, prg, bank, 0);
if (!patch) {
spin_unlock_irqrestore(&opl3->voice_lock, flags);
return;
}
fm = KINSTR_DATA(kinstr);
switch (fm->type) {
fm = &patch->inst;
switch (patch->type) {
case FM_PATCH_OPL2:
instr_4op = 0;
break;
@ -371,14 +368,12 @@ void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
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);
instr_4op ? 3 : 2, patch->name);
#endif
/* in SYNTH mode, application takes care of voices */
/* in SEQ mode, allocate voice on free OPL3 channel */
@ -569,8 +564,6 @@ void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
/* 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;
@ -601,12 +594,12 @@ void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
/* allocate extra program if specified in patch library */
if (extra_prg) {
if (extra_prg > 128) {
wanted.bank = 128;
bank = 128;
/* percussions start at 35 */
wanted.prg = extra_prg - 128 + 35 - 1;
prg = extra_prg - 128 + 35 - 1;
} else {
wanted.bank = 0;
wanted.prg = extra_prg - 1;
bank = 0;
prg = extra_prg - 1;
}
#ifdef DEBUG_MIDI
snd_printk(" *** allocating extra program\n");

141
sound/drivers/opl3/opl3_oss.c
View file

@ -195,17 +195,6 @@ static int snd_opl3_close_seq_oss(struct snd_seq_oss_arg *arg)
/* 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
@ -213,112 +202,42 @@ static int snd_opl3_load_patch_seq_oss(struct snd_seq_oss_arg *arg, int format,
const char __user *buf, int offs, int count)
{
struct snd_opl3 *opl3;
int err = -EINVAL;
struct sbi_instrument sbi;
char name[32];
int err, type;
snd_assert(arg != NULL, return -ENXIO);
opl3 = arg->private_data;
if ((format == FM_PATCH) || (format == OPL3_PATCH)) {
struct sbi_instrument sbi;
if (format == FM_PATCH)
type = FM_PATCH_OPL2;
else if (format == OPL3_PATCH)
type = FM_PATCH_OPL3;
else
return -EINVAL;
size_t size;
struct snd_seq_instr_header *put;
struct snd_seq_instr_data *data;
struct fm_xinstrument *xinstr;
struct snd_seq_event 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(struct fm_xinstrument);
put = kzalloc(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 = (struct fm_xinstrument *)(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) {
struct snd_seq_instr_header 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);
if (count < (int)sizeof(sbi)) {
snd_printk("FM Error: Patch record too short\n");
return -EINVAL;
}
return err;
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;
}
memset(name, 0, sizeof(name));
sprintf(name, "Chan%d", sbi.channel);
err = snd_opl3_load_patch(opl3, sbi.channel, 127, type, name, NULL,
sbi.operators);
if (err < 0)
return err;
return sizeof(sbi);
}
/* ioctl */

22
sound/drivers/opl3/opl3_seq.c
View file

@ -152,15 +152,7 @@ static int snd_opl3_synth_event_input(struct snd_seq_event * ev, int direct,
{
struct snd_opl3 *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);
}
snd_midi_process_event(&opl3_ops, ev, opl3->chset);
return 0;
}
@ -249,16 +241,6 @@ static int snd_opl3_seq_new_device(struct snd_seq_device *dev)
return err;
}
/* 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;
@ -287,8 +269,6 @@ static int snd_opl3_seq_delete_device(struct snd_seq_device *dev)
snd_seq_delete_kernel_client(opl3->seq_client);
opl3->seq_client = -1;
}
if (opl3->ilist)
snd_seq_instr_list_free(&opl3->ilist);
return 0;
}

168
sound/drivers/opl3/opl3_synth.c
View file

@ -165,6 +165,10 @@ int snd_opl3_ioctl(struct snd_hwdep * hw, struct file *file,
#endif
return snd_opl3_set_connection(opl3, (int) arg);
case SNDRV_DM_FM_IOCTL_CLEAR_PATCHES:
snd_opl3_clear_patches(opl3);
return 0;
#ifdef CONFIG_SND_DEBUG
default:
snd_printk("unknown IOCTL: 0x%x\n", cmd);
@ -188,6 +192,170 @@ int snd_opl3_release(struct snd_hwdep * hw, struct file *file)
return 0;
}
/*
* write the device - load patches
*/
long snd_opl3_write(struct snd_hwdep *hw, const char __user *buf, long count,
loff_t *offset)
{
struct snd_opl3 *opl3 = hw->private_data;
long result = 0;
int err = 0;
struct sbi_patch inst;
while (count >= sizeof(inst)) {
unsigned char type;
if (copy_from_user(&inst, buf, sizeof(inst)))
return -EFAULT;
if (!memcmp(inst.key, FM_KEY_SBI, 4) ||
!memcmp(inst.key, FM_KEY_2OP, 4))
type = FM_PATCH_OPL2;
else if (!memcmp(inst.key, FM_KEY_4OP, 4))
type = FM_PATCH_OPL3;
else /* invalid type */
break;
err = snd_opl3_load_patch(opl3, inst.prog, inst.bank, type,
inst.name, inst.extension,
inst.data);
if (err < 0)
break;
result += sizeof(inst);
count -= sizeof(inst);
}
return result > 0 ? result : err;
}
/*
* Patch management
*/
/* 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
/*
* load a patch, obviously.
*
* loaded on the given program and bank numbers with the given type
* (FM_PATCH_OPLx).
* data is the pointer of SBI record _without_ header (key and name).
* name is the name string of the patch.
* ext is the extension data of 7 bytes long (stored in name of SBI
* data up to offset 25), or NULL to skip.
* return 0 if successful or a negative error code.
*/
int snd_opl3_load_patch(struct snd_opl3 *opl3,
int prog, int bank, int type,
const char *name,
const unsigned char *ext,
const unsigned char *data)
{
struct fm_patch *patch;
int i;
patch = snd_opl3_find_patch(opl3, prog, bank, 1);
if (!patch)
return -ENOMEM;
patch->type = type;
for (i = 0; i < 2; i++) {
patch->inst.op[i].am_vib = data[AM_VIB + i];
patch->inst.op[i].ksl_level = data[KSL_LEVEL + i];
patch->inst.op[i].attack_decay = data[ATTACK_DECAY + i];
patch->inst.op[i].sustain_release = data[SUSTAIN_RELEASE + i];
patch->inst.op[i].wave_select = data[WAVE_SELECT + i];
}
patch->inst.feedback_connection[0] = data[CONNECTION];
if (type == FM_PATCH_OPL3) {
for (i = 0; i < 2; i++) {
patch->inst.op[i+2].am_vib =
data[OFFSET_4OP + AM_VIB + i];
patch->inst.op[i+2].ksl_level =
data[OFFSET_4OP + KSL_LEVEL + i];
patch->inst.op[i+2].attack_decay =
data[OFFSET_4OP + ATTACK_DECAY + i];
patch->inst.op[i+2].sustain_release =
data[OFFSET_4OP + SUSTAIN_RELEASE + i];
patch->inst.op[i+2].wave_select =
data[OFFSET_4OP + WAVE_SELECT + i];
}
patch->inst.feedback_connection[1] =
data[OFFSET_4OP + CONNECTION];
}
if (ext) {
patch->inst.echo_delay = ext[0];
patch->inst.echo_atten = ext[1];
patch->inst.chorus_spread = ext[2];
patch->inst.trnsps = ext[3];
patch->inst.fix_dur = ext[4];
patch->inst.modes = ext[5];
patch->inst.fix_key = ext[6];
}
if (name)
strlcpy(patch->name, name, sizeof(patch->name));
return 0;
}
EXPORT_SYMBOL(snd_opl3_load_patch);
/*
* find a patch with the given program and bank numbers, returns its pointer
* if no matching patch is found and create_patch is set, it creates a
* new patch object.
*/
struct fm_patch *snd_opl3_find_patch(struct snd_opl3 *opl3, int prog, int bank,
int create_patch)
{
/* pretty dumb hash key */
unsigned int key = (prog + bank) % OPL3_PATCH_HASH_SIZE;
struct fm_patch *patch;
for (patch = opl3->patch_table[key]; patch; patch = patch->next) {
if (patch->prog == prog && patch->bank == bank)
return patch;
}
if (!create_patch)
return NULL;
patch = kzalloc(sizeof(*patch), GFP_KERNEL);
if (!patch)
return NULL;
patch->prog = prog;
patch->bank = bank;
patch->next = opl3->patch_table[key];
opl3->patch_table[key] = patch;
return patch;
}
EXPORT_SYMBOL(snd_opl3_find_patch);
/*
* Clear all patches of the given OPL3 instance
*/
void snd_opl3_clear_patches(struct snd_opl3 *opl3)
{
int i;
for (i = 0; i < OPL3_PATCH_HASH_SIZE; i++) {
struct fm_patch *patch, *next;
for (patch = opl3->patch_table[i]; patch; patch = next) {
next = patch->next;
kfree(patch);
}
}
memset(opl3->patch_table, 0, sizeof(opl3->patch_table));
}
/* ------------------------------ */
void snd_opl3_reset(struct snd_opl3 * opl3)