leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
79f321b7e6
linux/sound/drivers/mtpav.c
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00

793 lines
20 KiB
C
Raw Blame History

/*
* 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/err.h>
#include <linux/platform_device.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.");
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, IRQF_DISABLED, "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)
Reference in New Issue View Git Blame Copy Permalink