[ALSA] AdLib FM card driver
Attached you'll find an ALSA driver for AdLib FM cards. An AdLib card is
just an OPL2, which was already supported by sound/drivers/opl3, so only
very minimal bus-glue is needed. The patch applies cleanly to both
2.6.16 and 2.6.16-mm1.
The driver has been tested with an actual ancient 8-bit ISA AdLib card
and works fine. It also works fine for an OPL3 {,emulation} as still
found on many ISA soundcards but given that AdLib cards don't have their
own mixer, upping the volume from 0 might be a problem without the card
driver already loaded and driving the OPL3.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Rene Herman
Jaroslav Kysela
parent
060d77b9c0
commit
cf40a310a7
@ -120,6 +120,34 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
|
||||
enable - enable card
|
||||
- Default: enabled, for PCI and ISA PnP cards
|
||||
|
||||
Module snd-adlib
|
||||
----------------
|
||||
|
||||
Module for AdLib FM cards.
|
||||
|
||||
port - port # for OPL chip
|
||||
|
||||
This module supports multiple cards. It does not support autoprobe, so
|
||||
the port must be specified. For actual AdLib FM cards it will be 0x388.
|
||||
Note that this card does not have PCM support and no mixer; only FM
|
||||
synthesis.
|
||||
|
||||
Make sure you have "sbiload" from the alsa-tools package available and,
|
||||
after loading the module, find out the assigned ALSA sequencer port
|
||||
number through "sbiload -l". Example output:
|
||||
|
||||
Port Client name Port name
|
||||
64:0 OPL2 FM synth OPL2 FM Port
|
||||
|
||||
Load the std.sb and drums.sb patches also supplied by sbiload:
|
||||
|
||||
sbiload -p 64:0 std.sb drums.sb
|
||||
|
||||
If you use this driver to drive an OPL3, you can use std.o3 and drums.o3
|
||||
instead. To have the card produce sound, use aplaymidi from alsa-utils:
|
||||
|
||||
aplaymidi -p 64:0 foo.mid
|
||||
|
||||
Module snd-ad1816a
|
||||
------------------
|
||||
|
||||
|
||||
@ -11,6 +11,15 @@ config SND_CS4231_LIB
|
||||
tristate
|
||||
select SND_PCM
|
||||
|
||||
config SND_ADLIB
|
||||
tristate "AdLib FM card"
|
||||
select SND_OPL3_LIB
|
||||
help
|
||||
Say Y here to include support for AdLib FM cards.
|
||||
|
||||
To compile this driver as a module, choose M here: the module
|
||||
will be called snd-adlib.
|
||||
|
||||
config SND_AD1816A
|
||||
tristate "Analog Devices SoundPort AD1816A"
|
||||
depends on SND && PNP && ISA
|
||||
|
||||
@ -3,6 +3,7 @@
|
||||
# Copyright (c) 2001 by Jaroslav Kysela <perex@suse.cz>
|
||||
#
|
||||
|
||||
snd-adlib-objs := adlib.o
|
||||
snd-als100-objs := als100.o
|
||||
snd-azt2320-objs := azt2320.o
|
||||
snd-cmi8330-objs := cmi8330.o
|
||||
@ -13,6 +14,7 @@ snd-sgalaxy-objs := sgalaxy.o
|
||||
snd-sscape-objs := sscape.o
|
||||
|
||||
# Toplevel Module Dependency
|
||||
obj-$(CONFIG_SND_ADLIB) += snd-adlib.o
|
||||
obj-$(CONFIG_SND_ALS100) += snd-als100.o
|
||||
obj-$(CONFIG_SND_AZT2320) += snd-azt2320.o
|
||||
obj-$(CONFIG_SND_CMI8330) += snd-cmi8330.o
|
||||
|
||||
161
sound/isa/adlib.c
Normal file
161
sound/isa/adlib.c
Normal file
@ -0,0 +1,161 @@
|
||||
/*
|
||||
* AdLib FM card driver.
|
||||
*/
|
||||
|
||||
#include <sound/driver.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <sound/core.h>
|
||||
#include <sound/initval.h>
|
||||
#include <sound/opl3.h>
|
||||
|
||||
#define CRD_NAME "AdLib FM"
|
||||
#define DRV_NAME "snd_adlib"
|
||||
|
||||
MODULE_DESCRIPTION(CRD_NAME);
|
||||
MODULE_AUTHOR("Rene Herman");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
|
||||
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
|
||||
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
|
||||
static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT;
|
||||
|
||||
module_param_array(index, int, NULL, 0444);
|
||||
MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard.");
|
||||
module_param_array(id, charp, NULL, 0444);
|
||||
MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard.");
|
||||
module_param_array(enable, bool, NULL, 0444);
|
||||
MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard.");
|
||||
module_param_array(port, long, NULL, 0444);
|
||||
MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver.");
|
||||
|
||||
static struct platform_device *devices[SNDRV_CARDS];
|
||||
|
||||
static void snd_adlib_free(struct snd_card *card)
|
||||
{
|
||||
release_and_free_resource(card->private_data);
|
||||
}
|
||||
|
||||
static int __devinit snd_adlib_probe(struct platform_device *device)
|
||||
{
|
||||
struct snd_card *card;
|
||||
struct snd_opl3 *opl3;
|
||||
|
||||
int error;
|
||||
int i = device->id;
|
||||
|
||||
if (port[i] == SNDRV_AUTO_PORT) {
|
||||
snd_printk(KERN_ERR DRV_NAME ": please specify port\n");
|
||||
error = -EINVAL;
|
||||
goto out0;
|
||||
}
|
||||
|
||||
card = snd_card_new(index[i], id[i], THIS_MODULE, 0);
|
||||
if (!card) {
|
||||
snd_printk(KERN_ERR DRV_NAME ": could not create card\n");
|
||||
error = -EINVAL;
|
||||
goto out0;
|
||||
}
|
||||
|
||||
card->private_data = request_region(port[i], 4, CRD_NAME);
|
||||
if (!card->private_data) {
|
||||
snd_printk(KERN_ERR DRV_NAME ": could not grab ports\n");
|
||||
error = -EBUSY;
|
||||
goto out1;
|
||||
}
|
||||
card->private_free = snd_adlib_free;
|
||||
|
||||
error = snd_opl3_create(card, port[i], port[i] + 2, OPL3_HW_AUTO, 1, &opl3);
|
||||
if (error < 0) {
|
||||
snd_printk(KERN_ERR DRV_NAME ": could not create OPL\n");
|
||||
goto out1;
|
||||
}
|
||||
|
||||
error = snd_opl3_hwdep_new(opl3, 0, 0, NULL);
|
||||
if (error < 0) {
|
||||
snd_printk(KERN_ERR DRV_NAME ": could not create FM\n");
|
||||
goto out1;
|
||||
}
|
||||
|
||||
strcpy(card->driver, DRV_NAME);
|
||||
strcpy(card->shortname, CRD_NAME);
|
||||
sprintf(card->longname, CRD_NAME " at %#lx", port[i]);
|
||||
|
||||
snd_card_set_dev(card, &device->dev);
|
||||
|
||||
error = snd_card_register(card);
|
||||
if (error < 0) {
|
||||
snd_printk(KERN_ERR DRV_NAME ": could not register card\n");
|
||||
goto out1;
|
||||
}
|
||||
|
||||
platform_set_drvdata(device, card);
|
||||
return 0;
|
||||
|
||||
out1: snd_card_free(card);
|
||||
out0: error = -EINVAL; /* FIXME: should be the original error code */
|
||||
return error;
|
||||
}
|
||||
|
||||
static int __devexit snd_adlib_remove(struct platform_device *device)
|
||||
{
|
||||
snd_card_free(platform_get_drvdata(device));
|
||||
platform_set_drvdata(device, NULL);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver snd_adlib_driver = {
|
||||
.probe = snd_adlib_probe,
|
||||
.remove = __devexit_p(snd_adlib_remove),
|
||||
|
||||
.driver = {
|
||||
.name = DRV_NAME
|
||||
}
|
||||
};
|
||||
|
||||
static int __init alsa_card_adlib_init(void)
|
||||
{
|
||||
int i, cards;
|
||||
|
||||
if (platform_driver_register(&snd_adlib_driver) < 0) {
|
||||
snd_printk(KERN_ERR DRV_NAME ": could not register driver\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
for (cards = 0, i = 0; i < SNDRV_CARDS; i++) {
|
||||
struct platform_device *device;
|
||||
|
||||
if (!enable[i])
|
||||
continue;
|
||||
|
||||
device = platform_device_register_simple(DRV_NAME, i, NULL, 0);
|
||||
if (IS_ERR(device))
|
||||
continue;
|
||||
|
||||
devices[i] = device;
|
||||
cards++;
|
||||
}
|
||||
|
||||
if (!cards) {
|
||||
#ifdef MODULE
|
||||
printk(KERN_ERR CRD_NAME " soundcard not found or device busy\n");
|
||||
#endif
|
||||
platform_driver_unregister(&snd_adlib_driver);
|
||||
return -ENODEV;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __exit alsa_card_adlib_exit(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < SNDRV_CARDS; i++)
|
||||
platform_device_unregister(devices[i]);
|
||||
platform_driver_unregister(&snd_adlib_driver);
|
||||
}
|
||||
|
||||
module_init(alsa_card_adlib_init);
|
||||
module_exit(alsa_card_adlib_exit);
|
||||
Loading…
Reference in New Issue
Block a user