diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/drivers/mtpav.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/drivers/mtpav.c | 792 |
1 files changed, 0 insertions, 792 deletions
diff --git a/ANDROID_3.4.5/sound/drivers/mtpav.c b/ANDROID_3.4.5/sound/drivers/mtpav.c deleted file mode 100644 index 76930793..00000000 --- a/ANDROID_3.4.5/sound/drivers/mtpav.c +++ /dev/null @@ -1,792 +0,0 @@ -/* - * MOTU Midi Timepiece ALSA Main routines - * Copyright by Michael T. Mayers (c) Jan 09, 2000 - * mail: michael@tweakoz.com - * Thanks to John Galbraith - * - * 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 - * - * - * This driver is for the 'Mark Of The Unicorn' (MOTU) - * MidiTimePiece AV multiport MIDI interface - * - * IOPORTS - * ------- - * 8 MIDI Ins and 8 MIDI outs - * Video Sync In (BNC), Word Sync Out (BNC), - * ADAT Sync Out (DB9) - * SMPTE in/out (1/4") - * 2 programmable pedal/footswitch inputs and 4 programmable MIDI controller knobs. - * Macintosh RS422 serial port - * RS422 "network" port for ganging multiple MTP's - * PC Parallel Port ( which this driver currently uses ) - * - * MISC FEATURES - * ------------- - * Hardware MIDI routing, merging, and filtering - * MIDI Synchronization to Video, ADAT, SMPTE and other Clock sources - * 128 'scene' memories, recallable from MIDI program change - * - * - * ChangeLog - * Jun 11 2001 Takashi Iwai <tiwai@suse.de> - * - Recoded & debugged - * - Added timer interrupt for midi outputs - * - hwports is between 1 and 8, which specifies the number of hardware ports. - * The three global ports, computer, adat and broadcast ports, are created - * always after h/w and remote ports. - * - */ - -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/err.h> -#include <linux/platform_device.h> -#include <linux/ioport.h> -#include <linux/io.h> -#include <linux/moduleparam.h> -#include <sound/core.h> -#include <sound/initval.h> -#include <sound/rawmidi.h> -#include <linux/delay.h> - -/* - * globals - */ -MODULE_AUTHOR("Michael T. Mayers"); -MODULE_DESCRIPTION("MOTU MidiTimePiece AV multiport MIDI"); -MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("{{MOTU,MidiTimePiece AV multiport MIDI}}"); - -// io resources -#define MTPAV_IOBASE 0x378 -#define MTPAV_IRQ 7 -#define MTPAV_MAX_PORTS 8 - -static int index = SNDRV_DEFAULT_IDX1; -static char *id = SNDRV_DEFAULT_STR1; -static long port = MTPAV_IOBASE; /* 0x378, 0x278 */ -static int irq = MTPAV_IRQ; /* 7, 5 */ -static int hwports = MTPAV_MAX_PORTS; /* use hardware ports 1-8 */ - -module_param(index, int, 0444); -MODULE_PARM_DESC(index, "Index value for MotuMTPAV MIDI."); -module_param(id, charp, 0444); -MODULE_PARM_DESC(id, "ID string for MotuMTPAV MIDI."); -module_param(port, long, 0444); -MODULE_PARM_DESC(port, "Parallel port # for MotuMTPAV MIDI."); -module_param(irq, int, 0444); -MODULE_PARM_DESC(irq, "Parallel IRQ # for MotuMTPAV MIDI."); -module_param(hwports, int, 0444); -MODULE_PARM_DESC(hwports, "Hardware ports # for MotuMTPAV MIDI."); - -static struct platform_device *device; - -/* - * defines - */ -//#define USE_FAKE_MTP // don't actually read/write to MTP device (for debugging without an actual unit) (does not work yet) - -// parallel port usage masks -#define SIGS_BYTE 0x08 -#define SIGS_RFD 0x80 -#define SIGS_IRQ 0x40 -#define SIGS_IN0 0x10 -#define SIGS_IN1 0x20 - -#define SIGC_WRITE 0x04 -#define SIGC_READ 0x08 -#define SIGC_INTEN 0x10 - -#define DREG 0 -#define SREG 1 -#define CREG 2 - -// -#define MTPAV_MODE_INPUT_OPENED 0x01 -#define MTPAV_MODE_OUTPUT_OPENED 0x02 -#define MTPAV_MODE_INPUT_TRIGGERED 0x04 -#define MTPAV_MODE_OUTPUT_TRIGGERED 0x08 - -#define NUMPORTS (0x12+1) - - -/* - */ - -struct mtpav_port { - u8 number; - u8 hwport; - u8 mode; - u8 running_status; - struct snd_rawmidi_substream *input; - struct snd_rawmidi_substream *output; -}; - -struct mtpav { - struct snd_card *card; - unsigned long port; - struct resource *res_port; - int irq; /* interrupt (for inputs) */ - spinlock_t spinlock; - int share_irq; /* number of accesses to input interrupts */ - int istimer; /* number of accesses to timer interrupts */ - struct timer_list timer; /* timer interrupts for outputs */ - struct snd_rawmidi *rmidi; - int num_ports; /* number of hw ports (1-8) */ - struct mtpav_port ports[NUMPORTS]; /* all ports including computer, adat and bc */ - - u32 inmidiport; /* selected input midi port */ - u32 inmidistate; /* during midi command 0xf5 */ - - u32 outmidihwport; /* selected output midi hw port */ -}; - - -/* - * possible hardware ports (selected by 0xf5 port message) - * 0x00 all ports - * 0x01 .. 0x08 this MTP's ports 1..8 - * 0x09 .. 0x10 networked MTP's ports (9..16) - * 0x11 networked MTP's computer port - * 0x63 to ADAT - * - * mappig: - * subdevice 0 - (X-1) ports - * X - (2*X-1) networked ports - * X computer - * X+1 ADAT - * X+2 all ports - * - * where X = chip->num_ports - */ - -#define MTPAV_PIDX_COMPUTER 0 -#define MTPAV_PIDX_ADAT 1 -#define MTPAV_PIDX_BROADCAST 2 - - -static int translate_subdevice_to_hwport(struct mtpav *chip, int subdev) -{ - if (subdev < 0) - return 0x01; /* invalid - use port 0 as default */ - else if (subdev < chip->num_ports) - return subdev + 1; /* single mtp port */ - else if (subdev < chip->num_ports * 2) - return subdev - chip->num_ports + 0x09; /* remote port */ - else if (subdev == chip->num_ports * 2 + MTPAV_PIDX_COMPUTER) - return 0x11; /* computer port */ - else if (subdev == chip->num_ports + MTPAV_PIDX_ADAT) - return 0x63; /* ADAT */ - return 0; /* all ports */ -} - -static int translate_hwport_to_subdevice(struct mtpav *chip, int hwport) -{ - int p; - if (hwport <= 0x00) /* all ports */ - return chip->num_ports + MTPAV_PIDX_BROADCAST; - else if (hwport <= 0x08) { /* single port */ - p = hwport - 1; - if (p >= chip->num_ports) - p = 0; - return p; - } else if (hwport <= 0x10) { /* remote port */ - p = hwport - 0x09 + chip->num_ports; - if (p >= chip->num_ports * 2) - p = chip->num_ports; - return p; - } else if (hwport == 0x11) /* computer port */ - return chip->num_ports + MTPAV_PIDX_COMPUTER; - else /* ADAT */ - return chip->num_ports + MTPAV_PIDX_ADAT; -} - - -/* - */ - -static u8 snd_mtpav_getreg(struct mtpav *chip, u16 reg) -{ - u8 rval = 0; - - if (reg == SREG) { - rval = inb(chip->port + SREG); - rval = (rval & 0xf8); - } else if (reg == CREG) { - rval = inb(chip->port + CREG); - rval = (rval & 0x1c); - } - - return rval; -} - -/* - */ - -static inline void snd_mtpav_mputreg(struct mtpav *chip, u16 reg, u8 val) -{ - if (reg == DREG || reg == CREG) - outb(val, chip->port + reg); -} - -/* - */ - -static void snd_mtpav_wait_rfdhi(struct mtpav *chip) -{ - int counts = 10000; - u8 sbyte; - - sbyte = snd_mtpav_getreg(chip, SREG); - while (!(sbyte & SIGS_RFD) && counts--) { - sbyte = snd_mtpav_getreg(chip, SREG); - udelay(10); - } -} - -static void snd_mtpav_send_byte(struct mtpav *chip, u8 byte) -{ - u8 tcbyt; - u8 clrwrite; - u8 setwrite; - - snd_mtpav_wait_rfdhi(chip); - - ///////////////// - - tcbyt = snd_mtpav_getreg(chip, CREG); - clrwrite = tcbyt & (SIGC_WRITE ^ 0xff); - setwrite = tcbyt | SIGC_WRITE; - - snd_mtpav_mputreg(chip, DREG, byte); - snd_mtpav_mputreg(chip, CREG, clrwrite); // clear write bit - - snd_mtpav_mputreg(chip, CREG, setwrite); // set write bit - -} - - -/* - */ - -/* call this with spin lock held */ -static void snd_mtpav_output_port_write(struct mtpav *mtp_card, - struct mtpav_port *portp, - struct snd_rawmidi_substream *substream) -{ - u8 outbyte; - - // Get the outbyte first, so we can emulate running status if - // necessary - if (snd_rawmidi_transmit(substream, &outbyte, 1) != 1) - return; - - // send port change command if necessary - - if (portp->hwport != mtp_card->outmidihwport) { - mtp_card->outmidihwport = portp->hwport; - - snd_mtpav_send_byte(mtp_card, 0xf5); - snd_mtpav_send_byte(mtp_card, portp->hwport); - /* - snd_printk(KERN_DEBUG "new outport: 0x%x\n", - (unsigned int) portp->hwport); - */ - if (!(outbyte & 0x80) && portp->running_status) - snd_mtpav_send_byte(mtp_card, portp->running_status); - } - - // send data - - do { - if (outbyte & 0x80) - portp->running_status = outbyte; - - snd_mtpav_send_byte(mtp_card, outbyte); - } while (snd_rawmidi_transmit(substream, &outbyte, 1) == 1); -} - -static void snd_mtpav_output_write(struct snd_rawmidi_substream *substream) -{ - struct mtpav *mtp_card = substream->rmidi->private_data; - struct mtpav_port *portp = &mtp_card->ports[substream->number]; - unsigned long flags; - - spin_lock_irqsave(&mtp_card->spinlock, flags); - snd_mtpav_output_port_write(mtp_card, portp, substream); - spin_unlock_irqrestore(&mtp_card->spinlock, flags); -} - - -/* - * mtpav control - */ - -static void snd_mtpav_portscan(struct mtpav *chip) // put mtp into smart routing mode -{ - u8 p; - - for (p = 0; p < 8; p++) { - snd_mtpav_send_byte(chip, 0xf5); - snd_mtpav_send_byte(chip, p); - snd_mtpav_send_byte(chip, 0xfe); - } -} - -/* - */ - -static int snd_mtpav_input_open(struct snd_rawmidi_substream *substream) -{ - struct mtpav *mtp_card = substream->rmidi->private_data; - struct mtpav_port *portp = &mtp_card->ports[substream->number]; - unsigned long flags; - - spin_lock_irqsave(&mtp_card->spinlock, flags); - portp->mode |= MTPAV_MODE_INPUT_OPENED; - portp->input = substream; - if (mtp_card->share_irq++ == 0) - snd_mtpav_mputreg(mtp_card, CREG, (SIGC_INTEN | SIGC_WRITE)); // enable pport interrupts - spin_unlock_irqrestore(&mtp_card->spinlock, flags); - return 0; -} - -/* - */ - -static int snd_mtpav_input_close(struct snd_rawmidi_substream *substream) -{ - struct mtpav *mtp_card = substream->rmidi->private_data; - struct mtpav_port *portp = &mtp_card->ports[substream->number]; - unsigned long flags; - - spin_lock_irqsave(&mtp_card->spinlock, flags); - portp->mode &= ~MTPAV_MODE_INPUT_OPENED; - portp->input = NULL; - if (--mtp_card->share_irq == 0) - snd_mtpav_mputreg(mtp_card, CREG, 0); // disable pport interrupts - spin_unlock_irqrestore(&mtp_card->spinlock, flags); - return 0; -} - -/* - */ - -static void snd_mtpav_input_trigger(struct snd_rawmidi_substream *substream, int up) -{ - struct mtpav *mtp_card = substream->rmidi->private_data; - struct mtpav_port *portp = &mtp_card->ports[substream->number]; - unsigned long flags; - - spin_lock_irqsave(&mtp_card->spinlock, flags); - if (up) - portp->mode |= MTPAV_MODE_INPUT_TRIGGERED; - else - portp->mode &= ~MTPAV_MODE_INPUT_TRIGGERED; - spin_unlock_irqrestore(&mtp_card->spinlock, flags); - -} - - -/* - * timer interrupt for outputs - */ - -static void snd_mtpav_output_timer(unsigned long data) -{ - unsigned long flags; - struct mtpav *chip = (struct mtpav *)data; - int p; - - spin_lock_irqsave(&chip->spinlock, flags); - /* reprogram timer */ - chip->timer.expires = 1 + jiffies; - add_timer(&chip->timer); - /* process each port */ - for (p = 0; p <= chip->num_ports * 2 + MTPAV_PIDX_BROADCAST; p++) { - struct mtpav_port *portp = &chip->ports[p]; - if ((portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED) && portp->output) - snd_mtpav_output_port_write(chip, portp, portp->output); - } - spin_unlock_irqrestore(&chip->spinlock, flags); -} - -/* spinlock held! */ -static void snd_mtpav_add_output_timer(struct mtpav *chip) -{ - chip->timer.expires = 1 + jiffies; - add_timer(&chip->timer); -} - -/* spinlock held! */ -static void snd_mtpav_remove_output_timer(struct mtpav *chip) -{ - del_timer(&chip->timer); -} - -/* - */ - -static int snd_mtpav_output_open(struct snd_rawmidi_substream *substream) -{ - struct mtpav *mtp_card = substream->rmidi->private_data; - struct mtpav_port *portp = &mtp_card->ports[substream->number]; - unsigned long flags; - - spin_lock_irqsave(&mtp_card->spinlock, flags); - portp->mode |= MTPAV_MODE_OUTPUT_OPENED; - portp->output = substream; - spin_unlock_irqrestore(&mtp_card->spinlock, flags); - return 0; -}; - -/* - */ - -static int snd_mtpav_output_close(struct snd_rawmidi_substream *substream) -{ - struct mtpav *mtp_card = substream->rmidi->private_data; - struct mtpav_port *portp = &mtp_card->ports[substream->number]; - unsigned long flags; - - spin_lock_irqsave(&mtp_card->spinlock, flags); - portp->mode &= ~MTPAV_MODE_OUTPUT_OPENED; - portp->output = NULL; - spin_unlock_irqrestore(&mtp_card->spinlock, flags); - return 0; -}; - -/* - */ - -static void snd_mtpav_output_trigger(struct snd_rawmidi_substream *substream, int up) -{ - struct mtpav *mtp_card = substream->rmidi->private_data; - struct mtpav_port *portp = &mtp_card->ports[substream->number]; - unsigned long flags; - - spin_lock_irqsave(&mtp_card->spinlock, flags); - if (up) { - if (! (portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED)) { - if (mtp_card->istimer++ == 0) - snd_mtpav_add_output_timer(mtp_card); - portp->mode |= MTPAV_MODE_OUTPUT_TRIGGERED; - } - } else { - portp->mode &= ~MTPAV_MODE_OUTPUT_TRIGGERED; - if (--mtp_card->istimer == 0) - snd_mtpav_remove_output_timer(mtp_card); - } - spin_unlock_irqrestore(&mtp_card->spinlock, flags); - - if (up) - snd_mtpav_output_write(substream); -} - -/* - * midi interrupt for inputs - */ - -static void snd_mtpav_inmidi_process(struct mtpav *mcrd, u8 inbyte) -{ - struct mtpav_port *portp; - - if ((int)mcrd->inmidiport > mcrd->num_ports * 2 + MTPAV_PIDX_BROADCAST) - return; - - portp = &mcrd->ports[mcrd->inmidiport]; - if (portp->mode & MTPAV_MODE_INPUT_TRIGGERED) - snd_rawmidi_receive(portp->input, &inbyte, 1); -} - -static void snd_mtpav_inmidi_h(struct mtpav *mcrd, u8 inbyte) -{ - if (inbyte >= 0xf8) { - /* real-time midi code */ - snd_mtpav_inmidi_process(mcrd, inbyte); - return; - } - - if (mcrd->inmidistate == 0) { // awaiting command - if (inbyte == 0xf5) // MTP port # - mcrd->inmidistate = 1; - else - snd_mtpav_inmidi_process(mcrd, inbyte); - } else if (mcrd->inmidistate) { - mcrd->inmidiport = translate_hwport_to_subdevice(mcrd, inbyte); - mcrd->inmidistate = 0; - } -} - -static void snd_mtpav_read_bytes(struct mtpav *mcrd) -{ - u8 clrread, setread; - u8 mtp_read_byte; - u8 sr, cbyt; - int i; - - u8 sbyt = snd_mtpav_getreg(mcrd, SREG); - - /* printk(KERN_DEBUG "snd_mtpav_read_bytes() sbyt: 0x%x\n", sbyt); */ - - if (!(sbyt & SIGS_BYTE)) - return; - - cbyt = snd_mtpav_getreg(mcrd, CREG); - clrread = cbyt & (SIGC_READ ^ 0xff); - setread = cbyt | SIGC_READ; - - do { - - mtp_read_byte = 0; - for (i = 0; i < 4; i++) { - snd_mtpav_mputreg(mcrd, CREG, setread); - sr = snd_mtpav_getreg(mcrd, SREG); - snd_mtpav_mputreg(mcrd, CREG, clrread); - - sr &= SIGS_IN0 | SIGS_IN1; - sr >>= 4; - mtp_read_byte |= sr << (i * 2); - } - - snd_mtpav_inmidi_h(mcrd, mtp_read_byte); - - sbyt = snd_mtpav_getreg(mcrd, SREG); - - } while (sbyt & SIGS_BYTE); -} - -static irqreturn_t snd_mtpav_irqh(int irq, void *dev_id) -{ - struct mtpav *mcard = dev_id; - - spin_lock(&mcard->spinlock); - snd_mtpav_read_bytes(mcard); - spin_unlock(&mcard->spinlock); - return IRQ_HANDLED; -} - -/* - * get ISA resources - */ -static int __devinit snd_mtpav_get_ISA(struct mtpav * mcard) -{ - if ((mcard->res_port = request_region(port, 3, "MotuMTPAV MIDI")) == NULL) { - snd_printk(KERN_ERR "MTVAP port 0x%lx is busy\n", port); - return -EBUSY; - } - mcard->port = port; - if (request_irq(irq, snd_mtpav_irqh, 0, "MOTU MTPAV", mcard)) { - snd_printk(KERN_ERR "MTVAP IRQ %d busy\n", irq); - return -EBUSY; - } - mcard->irq = irq; - return 0; -} - - -/* - */ - -static struct snd_rawmidi_ops snd_mtpav_output = { - .open = snd_mtpav_output_open, - .close = snd_mtpav_output_close, - .trigger = snd_mtpav_output_trigger, -}; - -static struct snd_rawmidi_ops snd_mtpav_input = { - .open = snd_mtpav_input_open, - .close = snd_mtpav_input_close, - .trigger = snd_mtpav_input_trigger, -}; - - -/* - * get RAWMIDI resources - */ - -static void __devinit snd_mtpav_set_name(struct mtpav *chip, - struct snd_rawmidi_substream *substream) -{ - if (substream->number >= 0 && substream->number < chip->num_ports) - sprintf(substream->name, "MTP direct %d", (substream->number % chip->num_ports) + 1); - else if (substream->number >= 8 && substream->number < chip->num_ports * 2) - sprintf(substream->name, "MTP remote %d", (substream->number % chip->num_ports) + 1); - else if (substream->number == chip->num_ports * 2) - strcpy(substream->name, "MTP computer"); - else if (substream->number == chip->num_ports * 2 + 1) - strcpy(substream->name, "MTP ADAT"); - else - strcpy(substream->name, "MTP broadcast"); -} - -static int __devinit snd_mtpav_get_RAWMIDI(struct mtpav *mcard) -{ - int rval; - struct snd_rawmidi *rawmidi; - struct snd_rawmidi_substream *substream; - struct list_head *list; - - if (hwports < 1) - hwports = 1; - else if (hwports > 8) - hwports = 8; - mcard->num_ports = hwports; - - if ((rval = snd_rawmidi_new(mcard->card, "MotuMIDI", 0, - mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, - mcard->num_ports * 2 + MTPAV_PIDX_BROADCAST + 1, - &mcard->rmidi)) < 0) - return rval; - rawmidi = mcard->rmidi; - rawmidi->private_data = mcard; - - list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) { - substream = list_entry(list, struct snd_rawmidi_substream, list); - snd_mtpav_set_name(mcard, substream); - substream->ops = &snd_mtpav_input; - } - list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT].substreams) { - substream = list_entry(list, struct snd_rawmidi_substream, list); - snd_mtpav_set_name(mcard, substream); - substream->ops = &snd_mtpav_output; - mcard->ports[substream->number].hwport = translate_subdevice_to_hwport(mcard, substream->number); - } - rawmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | - SNDRV_RAWMIDI_INFO_DUPLEX; - sprintf(rawmidi->name, "MTP AV MIDI"); - return 0; -} - -/* - */ - -static void snd_mtpav_free(struct snd_card *card) -{ - struct mtpav *crd = card->private_data; - unsigned long flags; - - spin_lock_irqsave(&crd->spinlock, flags); - if (crd->istimer > 0) - snd_mtpav_remove_output_timer(crd); - spin_unlock_irqrestore(&crd->spinlock, flags); - if (crd->irq >= 0) - free_irq(crd->irq, (void *)crd); - release_and_free_resource(crd->res_port); -} - -/* - */ -static int __devinit snd_mtpav_probe(struct platform_device *dev) -{ - struct snd_card *card; - int err; - struct mtpav *mtp_card; - - err = snd_card_create(index, id, THIS_MODULE, sizeof(*mtp_card), &card); - if (err < 0) - return err; - - mtp_card = card->private_data; - spin_lock_init(&mtp_card->spinlock); - init_timer(&mtp_card->timer); - mtp_card->card = card; - mtp_card->irq = -1; - mtp_card->share_irq = 0; - mtp_card->inmidistate = 0; - mtp_card->outmidihwport = 0xffffffff; - init_timer(&mtp_card->timer); - mtp_card->timer.function = snd_mtpav_output_timer; - mtp_card->timer.data = (unsigned long) mtp_card; - - card->private_free = snd_mtpav_free; - - err = snd_mtpav_get_RAWMIDI(mtp_card); - if (err < 0) - goto __error; - - mtp_card->inmidiport = mtp_card->num_ports + MTPAV_PIDX_BROADCAST; - - err = snd_mtpav_get_ISA(mtp_card); - if (err < 0) - goto __error; - - strcpy(card->driver, "MTPAV"); - strcpy(card->shortname, "MTPAV on parallel port"); - snprintf(card->longname, sizeof(card->longname), - "MTPAV on parallel port at 0x%lx", port); - - snd_mtpav_portscan(mtp_card); - - snd_card_set_dev(card, &dev->dev); - err = snd_card_register(mtp_card->card); - if (err < 0) - goto __error; - - platform_set_drvdata(dev, card); - printk(KERN_INFO "Motu MidiTimePiece on parallel port irq: %d ioport: 0x%lx\n", irq, port); - return 0; - - __error: - snd_card_free(card); - return err; -} - -static int __devexit snd_mtpav_remove(struct platform_device *devptr) -{ - snd_card_free(platform_get_drvdata(devptr)); - platform_set_drvdata(devptr, NULL); - return 0; -} - -#define SND_MTPAV_DRIVER "snd_mtpav" - -static struct platform_driver snd_mtpav_driver = { - .probe = snd_mtpav_probe, - .remove = __devexit_p(snd_mtpav_remove), - .driver = { - .name = SND_MTPAV_DRIVER - }, -}; - -static int __init alsa_card_mtpav_init(void) -{ - int err; - - if ((err = platform_driver_register(&snd_mtpav_driver)) < 0) - return err; - - device = platform_device_register_simple(SND_MTPAV_DRIVER, -1, NULL, 0); - if (!IS_ERR(device)) { - if (platform_get_drvdata(device)) - return 0; - platform_device_unregister(device); - err = -ENODEV; - } else - err = PTR_ERR(device); - platform_driver_unregister(&snd_mtpav_driver); - return err; -} - -static void __exit alsa_card_mtpav_exit(void) -{ - platform_device_unregister(device); - platform_driver_unregister(&snd_mtpav_driver); -} - -module_init(alsa_card_mtpav_init) -module_exit(alsa_card_mtpav_exit) |