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linux/sound/pci/emu10k1/emu10k1.c
Oswald Buddenhagen c960b012ec ALSA: emu10k1: track loss of external clock on E-MU cards 
85;95;0c
This uses IRQs to track spontaneous changes to the word clock source
register.

FWIW, that this can happen in the first place is the reason why it is
futile to lock the clock source mixer setting while the device is open -
we can't consistently control the rate anyway. Though arguably, we
should reset any open streams when that happens, as they become
corrupted anyway.

Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230715160738.326832-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2023-07-17 09:21:21 +02:00

244 lines
6.8 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* The driver for the EMU10K1 (SB Live!) based soundcards
* Copyright (c) by Jaroslav Kysela <perex@perex.cz>
*
* Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk>
* Added support for Audigy 2 Value.
*/
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/time.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/emu10k1.h>
#include <sound/initval.h>
MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("EMU10K1");
MODULE_LICENSE("GPL");
#if IS_ENABLED(CONFIG_SND_SEQUENCER)
#define ENABLE_SYNTH
#include <sound/emu10k1_synth.h>
#endif
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
static int extin[SNDRV_CARDS];
static int extout[SNDRV_CARDS];
static int seq_ports[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 4};
static int max_synth_voices[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 64};
static int max_buffer_size[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 128};
static bool enable_ir[SNDRV_CARDS];
static uint subsystem[SNDRV_CARDS]; /* Force card subsystem model */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for the EMU10K1 soundcard.");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for the EMU10K1 soundcard.");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable the EMU10K1 soundcard.");
module_param_array(extin, int, NULL, 0444);
MODULE_PARM_DESC(extin, "Available external inputs for FX8010. Zero=default.");
module_param_array(extout, int, NULL, 0444);
MODULE_PARM_DESC(extout, "Available external outputs for FX8010. Zero=default.");
module_param_array(seq_ports, int, NULL, 0444);
MODULE_PARM_DESC(seq_ports, "Allocated sequencer ports for internal synthesizer.");
module_param_array(max_synth_voices, int, NULL, 0444);
MODULE_PARM_DESC(max_synth_voices, "Maximum number of voices for WaveTable.");
module_param_array(max_buffer_size, int, NULL, 0444);
MODULE_PARM_DESC(max_buffer_size, "Maximum sample buffer size in MB.");
module_param_array(enable_ir, bool, NULL, 0444);
MODULE_PARM_DESC(enable_ir, "Enable IR.");
module_param_array(subsystem, uint, NULL, 0444);
MODULE_PARM_DESC(subsystem, "Force card subsystem model.");
/*
* Class 0401: 1102:0008 (rev 00) Subsystem: 1102:1001 -> Audigy2 Value Model:SB0400
*/
static const struct pci_device_id snd_emu10k1_ids[] = {
{ PCI_VDEVICE(CREATIVE, 0x0002), 0 }, /* EMU10K1 */
{ PCI_VDEVICE(CREATIVE, 0x0004), 1 }, /* Audigy */
{ PCI_VDEVICE(CREATIVE, 0x0008), 1 }, /* Audigy 2 Value SB0400 */
{ 0, }
};
MODULE_DEVICE_TABLE(pci, snd_emu10k1_ids);
static int snd_card_emu10k1_probe(struct pci_dev *pci,
const struct pci_device_id *pci_id)
{
static int dev;
struct snd_card *card;
struct snd_emu10k1 *emu;
#ifdef ENABLE_SYNTH
struct snd_seq_device *wave = NULL;
#endif
int err;
if (dev >= SNDRV_CARDS)
return -ENODEV;
if (!enable[dev]) {
dev++;
return -ENOENT;
}
err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
sizeof(*emu), &card);
if (err < 0)
return err;
emu = card->private_data;
if (max_buffer_size[dev] < 32)
max_buffer_size[dev] = 32;
else if (max_buffer_size[dev] > 1024)
max_buffer_size[dev] = 1024;
err = snd_emu10k1_create(card, pci, extin[dev], extout[dev],
(long)max_buffer_size[dev] * 1024 * 1024,
enable_ir[dev], subsystem[dev]);
if (err < 0)
return err;
err = snd_emu10k1_pcm(emu, 0);
if (err < 0)
return err;
if (emu->card_capabilities->ac97_chip) {
err = snd_emu10k1_pcm_mic(emu, 1);
if (err < 0)
return err;
}
err = snd_emu10k1_pcm_efx(emu, 2);
if (err < 0)
return err;
/* This stores the periods table. */
if (emu->card_capabilities->ca0151_chip) { /* P16V */
emu->p16v_buffer =
snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV, 1024);
if (!emu->p16v_buffer)
return -ENOMEM;
}
err = snd_emu10k1_mixer(emu, 0, 3);
if (err < 0)
return err;
err = snd_emu10k1_timer(emu, 0);
if (err < 0)
return err;
err = snd_emu10k1_pcm_multi(emu, 3);
if (err < 0)
return err;
if (emu->card_capabilities->ca0151_chip) { /* P16V */
err = snd_p16v_pcm(emu, 4);
if (err < 0)
return err;
}
if (emu->audigy) {
err = snd_emu10k1_audigy_midi(emu);
if (err < 0)
return err;
} else {
err = snd_emu10k1_midi(emu);
if (err < 0)
return err;
}
err = snd_emu10k1_fx8010_new(emu, 0);
if (err < 0)
return err;
#ifdef ENABLE_SYNTH
if (snd_seq_device_new(card, 1, SNDRV_SEQ_DEV_ID_EMU10K1_SYNTH,
sizeof(struct snd_emu10k1_synth_arg), &wave) < 0 ||
wave == NULL) {
dev_warn(emu->card->dev,
"can't initialize Emu10k1 wavetable synth\n");
} else {
struct snd_emu10k1_synth_arg *arg;
arg = SNDRV_SEQ_DEVICE_ARGPTR(wave);
strcpy(wave->name, "Emu-10k1 Synth");
arg->hwptr = emu;
arg->index = 1;
arg->seq_ports = seq_ports[dev];
arg->max_voices = max_synth_voices[dev];
}
#endif
strscpy(card->driver, emu->card_capabilities->driver,
sizeof(card->driver));
strscpy(card->shortname, emu->card_capabilities->name,
sizeof(card->shortname));
snprintf(card->longname, sizeof(card->longname),
"%s (rev.%d, serial:0x%x) at 0x%lx, irq %i",
card->shortname, emu->revision, emu->serial, emu->port, emu->irq);
err = snd_card_register(card);
if (err < 0)
return err;
pci_set_drvdata(pci, card);
dev++;
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int snd_emu10k1_suspend(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct snd_emu10k1 *emu = card->private_data;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
emu->suspend = 1;
cancel_work_sync(&emu->emu1010.firmware_work);
cancel_work_sync(&emu->emu1010.clock_work);
snd_ac97_suspend(emu->ac97);
snd_emu10k1_efx_suspend(emu);
snd_emu10k1_suspend_regs(emu);
if (emu->card_capabilities->ca0151_chip)
snd_p16v_suspend(emu);
snd_emu10k1_done(emu);
return 0;
}
static int snd_emu10k1_resume(struct device *dev)
{
struct snd_card *card = dev_get_drvdata(dev);
struct snd_emu10k1 *emu = card->private_data;
snd_emu10k1_resume_init(emu);
snd_emu10k1_efx_resume(emu);
snd_ac97_resume(emu->ac97);
snd_emu10k1_resume_regs(emu);
if (emu->card_capabilities->ca0151_chip)
snd_p16v_resume(emu);
emu->suspend = 0;
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
}
static SIMPLE_DEV_PM_OPS(snd_emu10k1_pm, snd_emu10k1_suspend, snd_emu10k1_resume);
#define SND_EMU10K1_PM_OPS &snd_emu10k1_pm
#else
#define SND_EMU10K1_PM_OPS NULL
#endif /* CONFIG_PM_SLEEP */
static struct pci_driver emu10k1_driver = {
.name = KBUILD_MODNAME,
.id_table = snd_emu10k1_ids,
.probe = snd_card_emu10k1_probe,
.driver = {
.pm = SND_EMU10K1_PM_OPS,
},
};
module_pci_driver(emu10k1_driver);
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