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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/drivers/mtpav.c | |
download | kernel_goldelico_gta04-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip kernel_goldelico_gta04-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz kernel_goldelico_gta04-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'sound/drivers/mtpav.c')
-rw-r--r-- | sound/drivers/mtpav.c | 795 |
1 files changed, 795 insertions, 0 deletions
diff --git a/sound/drivers/mtpav.c b/sound/drivers/mtpav.c new file mode 100644 index 0000000..1280a57 --- /dev/null +++ b/sound/drivers/mtpav.c @@ -0,0 +1,795 @@ +/* + * 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 <sound/driver.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/slab.h> +#include <linux/ioport.h> +#include <linux/moduleparam.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/rawmidi.h> +#include <linux/delay.h> + +#include <asm/io.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."); + +/* + * 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) + + +/* + */ + +typedef struct mtpav_port { + u8 number; + u8 hwport; + u8 mode; + u8 running_status; + snd_rawmidi_substream_t *input; + snd_rawmidi_substream_t *output; +} mtpav_port_t; + +typedef struct mtpav { + snd_card_t *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 */ + snd_rawmidi_t *rmidi; + int num_ports; /* number of hw ports (1-8) */ + mtpav_port_t 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 */ +} mtpav_t; + + +/* + * global instance + * hey, we handle at most only one card.. + */ +static mtpav_t *mtp_card; + +/* + * 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(mtpav_t *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(mtpav_t *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(mtpav_t *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 void snd_mtpav_mputreg(mtpav_t *chip, u16 reg, u8 val) +{ + if (reg == DREG) { + outb(val, chip->port + DREG); + } else if (reg == CREG) { + outb(val, chip->port + CREG); + } +} + +/* + */ + +static void snd_mtpav_wait_rfdhi(mtpav_t *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(mtpav_t *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(mtpav_port_t *port, + snd_rawmidi_substream_t *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 (port->hwport != mtp_card->outmidihwport) { + mtp_card->outmidihwport = port->hwport; + + snd_mtpav_send_byte(mtp_card, 0xf5); + snd_mtpav_send_byte(mtp_card, port->hwport); + //snd_printk("new outport: 0x%x\n", (unsigned int) port->hwport); + + if (!(outbyte & 0x80) && port->running_status) + snd_mtpav_send_byte(mtp_card, port->running_status); + } + + // send data + + do { + if (outbyte & 0x80) + port->running_status = outbyte; + + snd_mtpav_send_byte(mtp_card, outbyte); + } while (snd_rawmidi_transmit(substream, &outbyte, 1) == 1); +} + +static void snd_mtpav_output_write(snd_rawmidi_substream_t * substream) +{ + mtpav_port_t *port = &mtp_card->ports[substream->number]; + unsigned long flags; + + spin_lock_irqsave(&mtp_card->spinlock, flags); + snd_mtpav_output_port_write(port, substream); + spin_unlock_irqrestore(&mtp_card->spinlock, flags); +} + + +/* + * mtpav control + */ + +static void snd_mtpav_portscan(mtpav_t *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(snd_rawmidi_substream_t * substream) +{ + unsigned long flags; + mtpav_port_t *portp = &mtp_card->ports[substream->number]; + + //printk("mtpav port: %d opened\n", (int) substream->number); + 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(snd_rawmidi_substream_t *substream) +{ + unsigned long flags; + mtpav_port_t *portp = &mtp_card->ports[substream->number]; + + //printk("mtpav port: %d closed\n", (int) portp); + + 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(snd_rawmidi_substream_t * substream, int up) +{ + unsigned long flags; + mtpav_port_t *portp = &mtp_card->ports[substream->number]; + + 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; + mtpav_t *chip = (mtpav_t *)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++) { + mtpav_port_t *portp = &mtp_card->ports[p]; + if ((portp->mode & MTPAV_MODE_OUTPUT_TRIGGERED) && portp->output) + snd_mtpav_output_port_write(portp, portp->output); + } + spin_unlock_irqrestore(&chip->spinlock, flags); +} + +/* spinlock held! */ +static void snd_mtpav_add_output_timer(mtpav_t *chip) +{ + init_timer(&chip->timer); + chip->timer.function = snd_mtpav_output_timer; + chip->timer.data = (unsigned long) mtp_card; + chip->timer.expires = 1 + jiffies; + add_timer(&chip->timer); +} + +/* spinlock held! */ +static void snd_mtpav_remove_output_timer(mtpav_t *chip) +{ + del_timer(&chip->timer); +} + +/* + */ + +static int snd_mtpav_output_open(snd_rawmidi_substream_t * substream) +{ + unsigned long flags; + mtpav_port_t *portp = &mtp_card->ports[substream->number]; + + 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(snd_rawmidi_substream_t * substream) +{ + unsigned long flags; + mtpav_port_t *portp = &mtp_card->ports[substream->number]; + + 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(snd_rawmidi_substream_t * substream, int up) +{ + unsigned long flags; + mtpav_port_t *portp = &mtp_card->ports[substream->number]; + + 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(mtpav_t *mcrd, u8 inbyte) +{ + mtpav_port_t *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(mtpav_t * mcrd, u8 inbyte) +{ + snd_assert(mcrd, return); + + 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(mtpav_t * mcrd) +{ + u8 clrread, setread; + u8 mtp_read_byte; + u8 sr, cbyt; + int i; + + u8 sbyt = snd_mtpav_getreg(mcrd, SREG); + + //printk("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 pt_regs *regs) +{ + mtpav_t *mcard = dev_id; + + //printk("irqh()\n"); + spin_lock(&mcard->spinlock); + snd_mtpav_read_bytes(mcard); + spin_unlock(&mcard->spinlock); + return IRQ_HANDLED; +} + +/* + * get ISA resources + */ +static int snd_mtpav_get_ISA(mtpav_t * mcard) +{ + if ((mcard->res_port = request_region(port, 3, "MotuMTPAV MIDI")) == NULL) { + snd_printk("MTVAP port 0x%lx is busy\n", port); + return -EBUSY; + } + mcard->port = port; + if (request_irq(irq, snd_mtpav_irqh, SA_INTERRUPT, "MOTU MTPAV", (void *)mcard)) { + snd_printk("MTVAP IRQ %d busy\n", irq); + return -EBUSY; + } + mcard->irq = irq; + return 0; +} + + +/* + */ + +static snd_rawmidi_ops_t snd_mtpav_output = { + .open = snd_mtpav_output_open, + .close = snd_mtpav_output_close, + .trigger = snd_mtpav_output_trigger, +}; + +static snd_rawmidi_ops_t snd_mtpav_input = { + .open = snd_mtpav_input_open, + .close = snd_mtpav_input_close, + .trigger = snd_mtpav_input_trigger, +}; + + +/* + * get RAWMIDI resources + */ + +static void snd_mtpav_set_name(mtpav_t *chip, snd_rawmidi_substream_t *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 snd_mtpav_get_RAWMIDI(mtpav_t * mcard) +{ + int rval = 0; + snd_rawmidi_t *rawmidi; + snd_rawmidi_substream_t *substream; + struct list_head *list; + + //printk("entering snd_mtpav_get_RAWMIDI\n"); + + if (hwports < 1) + mcard->num_ports = 1; + else if (hwports > 8) + mcard->num_ports = 8; + else + 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; + + list_for_each(list, &rawmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT].substreams) { + substream = list_entry(list, snd_rawmidi_substream_t, 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, snd_rawmidi_substream_t, 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"); + //printk("exiting snd_mtpav_get_RAWMIDI() \n"); + return 0; +} + +/* + */ + +static mtpav_t *new_mtpav(void) +{ + mtpav_t *ncrd = kcalloc(1, sizeof(*ncrd), GFP_KERNEL); + if (ncrd != NULL) { + spin_lock_init(&ncrd->spinlock); + + init_timer(&ncrd->timer); + ncrd->card = NULL; + ncrd->irq = -1; + ncrd->share_irq = 0; + + ncrd->inmidiport = 0xffffffff; + ncrd->inmidistate = 0; + ncrd->outmidihwport = 0xffffffff; + } + return ncrd; +} + +/* + */ + +static void free_mtpav(mtpav_t * crd) +{ + 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); + if (crd->res_port) { + release_resource(crd->res_port); + kfree_nocheck(crd->res_port); + } + kfree(crd); +} + +/* + */ + +static int __init alsa_card_mtpav_init(void) +{ + int err = 0; + char longname_buffer[80]; + + mtp_card = new_mtpav(); + if (mtp_card == NULL) + return -ENOMEM; + + mtp_card->card = snd_card_new(index, id, THIS_MODULE, 0); + if (mtp_card->card == NULL) { + free_mtpav(mtp_card); + return -ENOMEM; + } + + err = snd_mtpav_get_ISA(mtp_card); + //printk("snd_mtpav_get_ISA returned: %d\n", err); + if (err < 0) + goto __error; + + strcpy(mtp_card->card->driver, "MTPAV"); + strcpy(mtp_card->card->shortname, "MTPAV on parallel port"); + memset(longname_buffer, 0, sizeof(longname_buffer)); + sprintf(longname_buffer, "MTPAV on parallel port at"); + + err = snd_mtpav_get_RAWMIDI(mtp_card); + //snd_printk("snd_mtapv_get_RAWMIDI returned: %d\n", err); + if (err < 0) + goto __error; + + err = snd_card_register(mtp_card->card); // don't snd_card_register until AFTER all cards reources done! + + //printk("snd_card_register returned %d\n", err); + if (err < 0) + goto __error; + + + snd_mtpav_portscan(mtp_card); + + printk(KERN_INFO "Motu MidiTimePiece on parallel port irq: %d ioport: 0x%lx\n", irq, port); + + return 0; + + __error: + snd_card_free(mtp_card->card); + free_mtpav(mtp_card); + return err; +} + +/* + */ + +static void __exit alsa_card_mtpav_exit(void) +{ + if (mtp_card == NULL) + return; + if (mtp_card->card) + snd_card_free(mtp_card->card); + free_mtpav(mtp_card); +} + +/* + */ + +module_init(alsa_card_mtpav_init) +module_exit(alsa_card_mtpav_exit) |