diff options
Diffstat (limited to 'sound/isa/wavefront/wavefront.c')
| -rw-r--r-- | sound/isa/wavefront/wavefront.c | 688 |
1 files changed, 688 insertions, 0 deletions
diff --git a/sound/isa/wavefront/wavefront.c b/sound/isa/wavefront/wavefront.c new file mode 100644 index 00000000..711670e4 --- /dev/null +++ b/sound/isa/wavefront/wavefront.c @@ -0,0 +1,688 @@ +/* + * ALSA card-level driver for Turtle Beach Wavefront cards + * (Maui,Tropez,Tropez+) + * + * Copyright (c) 1997-1999 by Paul Barton-Davis <pbd@op.net> + * + * 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 <linux/init.h> +#include <linux/interrupt.h> +#include <linux/err.h> +#include <linux/isa.h> +#include <linux/pnp.h> +#include <linux/moduleparam.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/opl3.h> +#include <sound/wss.h> +#include <sound/snd_wavefront.h> + +MODULE_AUTHOR("Paul Barton-Davis <pbd@op.net>"); +MODULE_DESCRIPTION("Turtle Beach Wavefront"); +MODULE_LICENSE("GPL"); +MODULE_SUPPORTED_DEVICE("{{Turtle Beach,Maui/Tropez/Tropez+}}"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ +static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ +#ifdef CONFIG_PNP +static int isapnp[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1}; +#endif +static long cs4232_pcm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ +static int cs4232_pcm_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 5,7,9,11,12,15 */ +static long cs4232_mpu_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ +static int cs4232_mpu_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 9,11,12,15 */ +static long ics2115_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ +static int ics2115_irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* 2,9,11,12,15 */ +static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ +static int dma1[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ +static int dma2[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* 0,1,3,5,6,7 */ +static int use_cs4232_midi[SNDRV_CARDS]; + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for WaveFront soundcard."); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string for WaveFront soundcard."); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "Enable WaveFront soundcard."); +#ifdef CONFIG_PNP +module_param_array(isapnp, bool, NULL, 0444); +MODULE_PARM_DESC(isapnp, "ISA PnP detection for WaveFront soundcards."); +#endif +module_param_array(cs4232_pcm_port, long, NULL, 0444); +MODULE_PARM_DESC(cs4232_pcm_port, "Port # for CS4232 PCM interface."); +module_param_array(cs4232_pcm_irq, int, NULL, 0444); +MODULE_PARM_DESC(cs4232_pcm_irq, "IRQ # for CS4232 PCM interface."); +module_param_array(dma1, int, NULL, 0444); +MODULE_PARM_DESC(dma1, "DMA1 # for CS4232 PCM interface."); +module_param_array(dma2, int, NULL, 0444); +MODULE_PARM_DESC(dma2, "DMA2 # for CS4232 PCM interface."); +module_param_array(cs4232_mpu_port, long, NULL, 0444); +MODULE_PARM_DESC(cs4232_mpu_port, "port # for CS4232 MPU-401 interface."); +module_param_array(cs4232_mpu_irq, int, NULL, 0444); +MODULE_PARM_DESC(cs4232_mpu_irq, "IRQ # for CS4232 MPU-401 interface."); +module_param_array(ics2115_irq, int, NULL, 0444); +MODULE_PARM_DESC(ics2115_irq, "IRQ # for ICS2115."); +module_param_array(ics2115_port, long, NULL, 0444); +MODULE_PARM_DESC(ics2115_port, "Port # for ICS2115."); +module_param_array(fm_port, long, NULL, 0444); +MODULE_PARM_DESC(fm_port, "FM port #."); +module_param_array(use_cs4232_midi, bool, NULL, 0444); +MODULE_PARM_DESC(use_cs4232_midi, "Use CS4232 MPU-401 interface (inaccessibly located inside your computer)"); + +#ifdef CONFIG_PNP +static int isa_registered; +static int pnp_registered; + +static struct pnp_card_device_id snd_wavefront_pnpids[] = { + /* Tropez */ + { .id = "CSC7532", .devs = { { "CSC0000" }, { "CSC0010" }, { "PnPb006" }, { "CSC0004" } } }, + /* Tropez+ */ + { .id = "CSC7632", .devs = { { "CSC0000" }, { "CSC0010" }, { "PnPb006" }, { "CSC0004" } } }, + { .id = "" } +}; + +MODULE_DEVICE_TABLE(pnp_card, snd_wavefront_pnpids); + +static int __devinit +snd_wavefront_pnp (int dev, snd_wavefront_card_t *acard, struct pnp_card_link *card, + const struct pnp_card_device_id *id) +{ + struct pnp_dev *pdev; + int err; + + /* Check for each logical device. */ + + /* CS4232 chip (aka "windows sound system") is logical device 0 */ + + acard->wss = pnp_request_card_device(card, id->devs[0].id, NULL); + if (acard->wss == NULL) + return -EBUSY; + + /* there is a game port at logical device 1, but we ignore it completely */ + + /* the control interface is logical device 2, but we ignore it + completely. in fact, nobody even seems to know what it + does. + */ + + /* Only configure the CS4232 MIDI interface if its been + specifically requested. It is logical device 3. + */ + + if (use_cs4232_midi[dev]) { + acard->mpu = pnp_request_card_device(card, id->devs[2].id, NULL); + if (acard->mpu == NULL) + return -EBUSY; + } + + /* The ICS2115 synth is logical device 4 */ + + acard->synth = pnp_request_card_device(card, id->devs[3].id, NULL); + if (acard->synth == NULL) + return -EBUSY; + + /* PCM/FM initialization */ + + pdev = acard->wss; + + /* An interesting note from the Tropez+ FAQ: + + Q. [Ports] Why is the base address of the WSS I/O ports off by 4? + + A. WSS I/O requires a block of 8 I/O addresses ("ports"). Of these, the first + 4 are used to identify and configure the board. With the advent of PnP, + these first 4 addresses have become obsolete, and software applications + only use the last 4 addresses to control the codec chip. Therefore, the + base address setting "skips past" the 4 unused addresses. + + */ + + err = pnp_activate_dev(pdev); + if (err < 0) { + snd_printk(KERN_ERR "PnP WSS pnp configure failure\n"); + return err; + } + + cs4232_pcm_port[dev] = pnp_port_start(pdev, 0); + fm_port[dev] = pnp_port_start(pdev, 1); + dma1[dev] = pnp_dma(pdev, 0); + dma2[dev] = pnp_dma(pdev, 1); + cs4232_pcm_irq[dev] = pnp_irq(pdev, 0); + + /* Synth initialization */ + + pdev = acard->synth; + + err = pnp_activate_dev(pdev); + if (err < 0) { + snd_printk(KERN_ERR "PnP ICS2115 pnp configure failure\n"); + return err; + } + + ics2115_port[dev] = pnp_port_start(pdev, 0); + ics2115_irq[dev] = pnp_irq(pdev, 0); + + /* CS4232 MPU initialization. Configure this only if + explicitly requested, since its physically inaccessible and + consumes another IRQ. + */ + + if (use_cs4232_midi[dev]) { + + pdev = acard->mpu; + + err = pnp_activate_dev(pdev); + if (err < 0) { + snd_printk(KERN_ERR "PnP MPU401 pnp configure failure\n"); + cs4232_mpu_port[dev] = SNDRV_AUTO_PORT; + } else { + cs4232_mpu_port[dev] = pnp_port_start(pdev, 0); + cs4232_mpu_irq[dev] = pnp_irq(pdev, 0); + } + + snd_printk (KERN_INFO "CS4232 MPU: port=0x%lx, irq=%i\n", + cs4232_mpu_port[dev], + cs4232_mpu_irq[dev]); + } + + snd_printdd ("CS4232: pcm port=0x%lx, fm port=0x%lx, dma1=%i, dma2=%i, irq=%i\nICS2115: port=0x%lx, irq=%i\n", + cs4232_pcm_port[dev], + fm_port[dev], + dma1[dev], + dma2[dev], + cs4232_pcm_irq[dev], + ics2115_port[dev], + ics2115_irq[dev]); + + return 0; +} + +#endif /* CONFIG_PNP */ + +static irqreturn_t snd_wavefront_ics2115_interrupt(int irq, void *dev_id) +{ + snd_wavefront_card_t *acard; + + acard = (snd_wavefront_card_t *) dev_id; + + if (acard == NULL) + return IRQ_NONE; + + if (acard->wavefront.interrupts_are_midi) { + snd_wavefront_midi_interrupt (acard); + } else { + snd_wavefront_internal_interrupt (acard); + } + return IRQ_HANDLED; +} + +static struct snd_hwdep * __devinit +snd_wavefront_new_synth (struct snd_card *card, + int hw_dev, + snd_wavefront_card_t *acard) +{ + struct snd_hwdep *wavefront_synth; + + if (snd_wavefront_detect (acard) < 0) { + return NULL; + } + + if (snd_wavefront_start (&acard->wavefront) < 0) { + return NULL; + } + + if (snd_hwdep_new(card, "WaveFront", hw_dev, &wavefront_synth) < 0) + return NULL; + strcpy (wavefront_synth->name, + "WaveFront (ICS2115) wavetable synthesizer"); + wavefront_synth->ops.open = snd_wavefront_synth_open; + wavefront_synth->ops.release = snd_wavefront_synth_release; + wavefront_synth->ops.ioctl = snd_wavefront_synth_ioctl; + + return wavefront_synth; +} + +static struct snd_hwdep * __devinit +snd_wavefront_new_fx (struct snd_card *card, + int hw_dev, + snd_wavefront_card_t *acard, + unsigned long port) + +{ + struct snd_hwdep *fx_processor; + + if (snd_wavefront_fx_start (&acard->wavefront)) { + snd_printk (KERN_ERR "cannot initialize YSS225 FX processor"); + return NULL; + } + + if (snd_hwdep_new (card, "YSS225", hw_dev, &fx_processor) < 0) + return NULL; + sprintf (fx_processor->name, "YSS225 FX Processor at 0x%lx", port); + fx_processor->ops.open = snd_wavefront_fx_open; + fx_processor->ops.release = snd_wavefront_fx_release; + fx_processor->ops.ioctl = snd_wavefront_fx_ioctl; + + return fx_processor; +} + +static snd_wavefront_mpu_id internal_id = internal_mpu; +static snd_wavefront_mpu_id external_id = external_mpu; + +static struct snd_rawmidi *__devinit +snd_wavefront_new_midi (struct snd_card *card, + int midi_dev, + snd_wavefront_card_t *acard, + unsigned long port, + snd_wavefront_mpu_id mpu) + +{ + struct snd_rawmidi *rmidi; + static int first = 1; + + if (first) { + first = 0; + acard->wavefront.midi.base = port; + if (snd_wavefront_midi_start (acard)) { + snd_printk (KERN_ERR "cannot initialize MIDI interface\n"); + return NULL; + } + } + + if (snd_rawmidi_new (card, "WaveFront MIDI", midi_dev, 1, 1, &rmidi) < 0) + return NULL; + + if (mpu == internal_mpu) { + strcpy(rmidi->name, "WaveFront MIDI (Internal)"); + rmidi->private_data = &internal_id; + } else { + strcpy(rmidi->name, "WaveFront MIDI (External)"); + rmidi->private_data = &external_id; + } + + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_wavefront_midi_output); + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_wavefront_midi_input); + + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | + SNDRV_RAWMIDI_INFO_INPUT | + SNDRV_RAWMIDI_INFO_DUPLEX; + + return rmidi; +} + +static void +snd_wavefront_free(struct snd_card *card) +{ + snd_wavefront_card_t *acard = (snd_wavefront_card_t *)card->private_data; + + if (acard) { + release_and_free_resource(acard->wavefront.res_base); + if (acard->wavefront.irq > 0) + free_irq(acard->wavefront.irq, (void *)acard); + } +} + +static int snd_wavefront_card_new(int dev, struct snd_card **cardp) +{ + struct snd_card *card; + snd_wavefront_card_t *acard; + int err; + + err = snd_card_create(index[dev], id[dev], THIS_MODULE, + sizeof(snd_wavefront_card_t), &card); + if (err < 0) + return err; + + acard = card->private_data; + acard->wavefront.irq = -1; + spin_lock_init(&acard->wavefront.irq_lock); + init_waitqueue_head(&acard->wavefront.interrupt_sleeper); + spin_lock_init(&acard->wavefront.midi.open); + spin_lock_init(&acard->wavefront.midi.virtual); + acard->wavefront.card = card; + card->private_free = snd_wavefront_free; + + *cardp = card; + return 0; +} + +static int __devinit +snd_wavefront_probe (struct snd_card *card, int dev) +{ + snd_wavefront_card_t *acard = card->private_data; + struct snd_wss *chip; + struct snd_hwdep *wavefront_synth; + struct snd_rawmidi *ics2115_internal_rmidi = NULL; + struct snd_rawmidi *ics2115_external_rmidi = NULL; + struct snd_hwdep *fx_processor; + int hw_dev = 0, midi_dev = 0, err; + + /* --------- PCM --------------- */ + + err = snd_wss_create(card, cs4232_pcm_port[dev], -1, + cs4232_pcm_irq[dev], dma1[dev], dma2[dev], + WSS_HW_DETECT, 0, &chip); + if (err < 0) { + snd_printk(KERN_ERR "can't allocate WSS device\n"); + return err; + } + + err = snd_wss_pcm(chip, 0, NULL); + if (err < 0) + return err; + + err = snd_wss_timer(chip, 0, NULL); + if (err < 0) + return err; + + /* ---------- OPL3 synth --------- */ + + if (fm_port[dev] > 0 && fm_port[dev] != SNDRV_AUTO_PORT) { + struct snd_opl3 *opl3; + + err = snd_opl3_create(card, fm_port[dev], fm_port[dev] + 2, + OPL3_HW_OPL3_CS, 0, &opl3); + if (err < 0) { + snd_printk (KERN_ERR "can't allocate or detect OPL3 synth\n"); + return err; + } + + err = snd_opl3_hwdep_new(opl3, hw_dev, 1, NULL); + if (err < 0) + return err; + hw_dev++; + } + + /* ------- ICS2115 Wavetable synth ------- */ + + acard->wavefront.res_base = request_region(ics2115_port[dev], 16, + "ICS2115"); + if (acard->wavefront.res_base == NULL) { + snd_printk(KERN_ERR "unable to grab ICS2115 i/o region 0x%lx-0x%lx\n", + ics2115_port[dev], ics2115_port[dev] + 16 - 1); + return -EBUSY; + } + if (request_irq(ics2115_irq[dev], snd_wavefront_ics2115_interrupt, + IRQF_DISABLED, "ICS2115", acard)) { + snd_printk(KERN_ERR "unable to use ICS2115 IRQ %d\n", ics2115_irq[dev]); + return -EBUSY; + } + + acard->wavefront.irq = ics2115_irq[dev]; + acard->wavefront.base = ics2115_port[dev]; + + wavefront_synth = snd_wavefront_new_synth(card, hw_dev, acard); + if (wavefront_synth == NULL) { + snd_printk (KERN_ERR "can't create WaveFront synth device\n"); + return -ENOMEM; + } + + strcpy (wavefront_synth->name, "ICS2115 Wavetable MIDI Synthesizer"); + wavefront_synth->iface = SNDRV_HWDEP_IFACE_ICS2115; + hw_dev++; + + /* --------- Mixer ------------ */ + + err = snd_wss_mixer(chip); + if (err < 0) { + snd_printk (KERN_ERR "can't allocate mixer device\n"); + return err; + } + + /* -------- CS4232 MPU-401 interface -------- */ + + if (cs4232_mpu_port[dev] > 0 && cs4232_mpu_port[dev] != SNDRV_AUTO_PORT) { + err = snd_mpu401_uart_new(card, midi_dev, MPU401_HW_CS4232, + cs4232_mpu_port[dev], 0, + cs4232_mpu_irq[dev], IRQF_DISABLED, + NULL); + if (err < 0) { + snd_printk (KERN_ERR "can't allocate CS4232 MPU-401 device\n"); + return err; + } + midi_dev++; + } + + /* ------ ICS2115 internal MIDI ------------ */ + + if (ics2115_port[dev] > 0 && ics2115_port[dev] != SNDRV_AUTO_PORT) { + ics2115_internal_rmidi = + snd_wavefront_new_midi (card, + midi_dev, + acard, + ics2115_port[dev], + internal_mpu); + if (ics2115_internal_rmidi == NULL) { + snd_printk (KERN_ERR "can't setup ICS2115 internal MIDI device\n"); + return -ENOMEM; + } + midi_dev++; + } + + /* ------ ICS2115 external MIDI ------------ */ + + if (ics2115_port[dev] > 0 && ics2115_port[dev] != SNDRV_AUTO_PORT) { + ics2115_external_rmidi = + snd_wavefront_new_midi (card, + midi_dev, + acard, + ics2115_port[dev], + external_mpu); + if (ics2115_external_rmidi == NULL) { + snd_printk (KERN_ERR "can't setup ICS2115 external MIDI device\n"); + return -ENOMEM; + } + midi_dev++; + } + + /* FX processor for Tropez+ */ + + if (acard->wavefront.has_fx) { + fx_processor = snd_wavefront_new_fx (card, + hw_dev, + acard, + ics2115_port[dev]); + if (fx_processor == NULL) { + snd_printk (KERN_ERR "can't setup FX device\n"); + return -ENOMEM; + } + + hw_dev++; + + strcpy(card->driver, "Tropez+"); + strcpy(card->shortname, "Turtle Beach Tropez+"); + } else { + /* Need a way to distinguish between Maui and Tropez */ + strcpy(card->driver, "WaveFront"); + strcpy(card->shortname, "Turtle Beach WaveFront"); + } + + /* ----- Register the card --------- */ + + /* Not safe to include "Turtle Beach" in longname, due to + length restrictions + */ + + sprintf(card->longname, "%s PCM 0x%lx irq %d dma %d", + card->driver, + chip->port, + cs4232_pcm_irq[dev], + dma1[dev]); + + if (dma2[dev] >= 0 && dma2[dev] < 8) + sprintf(card->longname + strlen(card->longname), "&%d", dma2[dev]); + + if (cs4232_mpu_port[dev] > 0 && cs4232_mpu_port[dev] != SNDRV_AUTO_PORT) { + sprintf (card->longname + strlen (card->longname), + " MPU-401 0x%lx irq %d", + cs4232_mpu_port[dev], + cs4232_mpu_irq[dev]); + } + + sprintf (card->longname + strlen (card->longname), + " SYNTH 0x%lx irq %d", + ics2115_port[dev], + ics2115_irq[dev]); + + return snd_card_register(card); +} + +static int __devinit snd_wavefront_isa_match(struct device *pdev, + unsigned int dev) +{ + if (!enable[dev]) + return 0; +#ifdef CONFIG_PNP + if (isapnp[dev]) + return 0; +#endif + if (cs4232_pcm_port[dev] == SNDRV_AUTO_PORT) { + snd_printk(KERN_ERR "specify CS4232 port\n"); + return 0; + } + if (ics2115_port[dev] == SNDRV_AUTO_PORT) { + snd_printk(KERN_ERR "specify ICS2115 port\n"); + return 0; + } + return 1; +} + +static int __devinit snd_wavefront_isa_probe(struct device *pdev, + unsigned int dev) +{ + struct snd_card *card; + int err; + + err = snd_wavefront_card_new(dev, &card); + if (err < 0) + return err; + snd_card_set_dev(card, pdev); + if ((err = snd_wavefront_probe(card, dev)) < 0) { + snd_card_free(card); + return err; + } + + dev_set_drvdata(pdev, card); + return 0; +} + +static int __devexit snd_wavefront_isa_remove(struct device *devptr, + unsigned int dev) +{ + snd_card_free(dev_get_drvdata(devptr)); + dev_set_drvdata(devptr, NULL); + return 0; +} + +#define DEV_NAME "wavefront" + +static struct isa_driver snd_wavefront_driver = { + .match = snd_wavefront_isa_match, + .probe = snd_wavefront_isa_probe, + .remove = __devexit_p(snd_wavefront_isa_remove), + /* FIXME: suspend, resume */ + .driver = { + .name = DEV_NAME + }, +}; + + +#ifdef CONFIG_PNP +static int __devinit snd_wavefront_pnp_detect(struct pnp_card_link *pcard, + const struct pnp_card_device_id *pid) +{ + static int dev; + struct snd_card *card; + int res; + + for ( ; dev < SNDRV_CARDS; dev++) { + if (enable[dev] && isapnp[dev]) + break; + } + if (dev >= SNDRV_CARDS) + return -ENODEV; + + res = snd_wavefront_card_new(dev, &card); + if (res < 0) + return res; + + if (snd_wavefront_pnp (dev, card->private_data, pcard, pid) < 0) { + if (cs4232_pcm_port[dev] == SNDRV_AUTO_PORT) { + snd_printk (KERN_ERR "isapnp detection failed\n"); + snd_card_free (card); + return -ENODEV; + } + } + snd_card_set_dev(card, &pcard->card->dev); + + if ((res = snd_wavefront_probe(card, dev)) < 0) + return res; + + pnp_set_card_drvdata(pcard, card); + dev++; + return 0; +} + +static void __devexit snd_wavefront_pnp_remove(struct pnp_card_link * pcard) +{ + snd_card_free(pnp_get_card_drvdata(pcard)); + pnp_set_card_drvdata(pcard, NULL); +} + +static struct pnp_card_driver wavefront_pnpc_driver = { + .flags = PNP_DRIVER_RES_DISABLE, + .name = "wavefront", + .id_table = snd_wavefront_pnpids, + .probe = snd_wavefront_pnp_detect, + .remove = __devexit_p(snd_wavefront_pnp_remove), + /* FIXME: suspend,resume */ +}; + +#endif /* CONFIG_PNP */ + +static int __init alsa_card_wavefront_init(void) +{ + int err; + + err = isa_register_driver(&snd_wavefront_driver, SNDRV_CARDS); +#ifdef CONFIG_PNP + if (!err) + isa_registered = 1; + + err = pnp_register_card_driver(&wavefront_pnpc_driver); + if (!err) + pnp_registered = 1; + + if (isa_registered) + err = 0; +#endif + return err; +} + +static void __exit alsa_card_wavefront_exit(void) +{ +#ifdef CONFIG_PNP + if (pnp_registered) + pnp_unregister_card_driver(&wavefront_pnpc_driver); + if (isa_registered) +#endif + isa_unregister_driver(&snd_wavefront_driver); +} + +module_init(alsa_card_wavefront_init) +module_exit(alsa_card_wavefront_exit) |