/*
* sound/oss/sb_midi.c
*
* The low level driver for the Sound Blaster DS chips.
*
*
* Copyright (C) by Hannu Savolainen 1993-1997
*
* OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
* Version 2 (June 1991). See the "COPYING" file distributed with this software
* for more info.
*/
#include <linux/spinlock.h>
#include <linux/slab.h>
#include "sound_config.h"
#include "sb.h"
#undef SB_TEST_IRQ
/*
* The DSP channel can be used either for input or output. Variable
* 'sb_irq_mode' will be set when the program calls read or write first time
* after open. Current version doesn't support mode changes without closing
* and reopening the device. Support for this feature may be implemented in a
* future version of this driver.
*/
static int sb_midi_open(int dev, int mode,
void (*input) (int dev, unsigned char data),
void (*output) (int dev)
)
{
sb_devc *devc = midi_devs[dev]->devc;
unsigned long flags;
if (devc == NULL)
return -ENXIO;
spin_lock_irqsave(&devc->lock, flags);
if (devc->opened)
{
spin_unlock_irqrestore(&devc->lock, flags);
return -EBUSY;
}
devc->opened = 1;
spin_unlock_irqrestore(&devc->lock, flags);
devc->irq_mode = IMODE_MIDI;
devc->midi_broken = 0;
sb_dsp_reset(devc);
if (!sb_dsp_command(devc, 0x35)) /* Start MIDI UART mode */
{
devc->opened = 0;
return -EIO;
}
devc->intr_active = 1;
if (mode & OPEN_READ)
{
devc->input_opened = 1;
devc->midi_input_intr = input;
}
return 0;
}
static void sb_midi_close(int dev)
{
sb_devc *devc = midi_devs[dev]->devc;
unsigned long flags;
if (devc == NULL)
return;
spin_lock_irqsave(&devc->lock, flags);
sb_dsp_reset(devc);
devc->intr_active = 0;
devc->input_opened = 0;
devc->opened = 0;
spin_unlock_irqrestore(&devc->lock, flags);
}
static int sb_midi_out(int dev, unsigned char midi_byte)
{
sb_devc *devc = midi_devs[dev]->devc;
if (devc == NULL)
return 1;
if (devc->midi_broken)
return 1;
if (!sb_dsp_command(devc, midi_byte))
{
devc->midi_broken = 1;
return 1;
}
return 1;
}
static int sb_midi_start_read(int dev)
{
return 0;
}
static int sb_midi_end_read(int dev)
{
sb_devc *devc = midi_devs[dev]->devc;
if (devc == NULL)
return -ENXIO;
sb_dsp_reset(devc);
devc->intr_active = 0;
return 0;
}
static int sb_midi_ioctl(int dev, unsigned cmd, void __user *arg)
{
return -EINVAL;
}
void sb_midi_interrupt(sb_devc * devc)
{
unsigned long flags;
unsigned char data;
if (devc == NULL)
return;
spin_lock_irqsave(&devc->lock, flags);
data = inb(DSP_READ);
if (devc->input_opened)
devc->midi_input_intr(devc->my_mididev, data);
spin_unlock_irqrestore(&devc->lock, flags);
}
#define MIDI_SYNTH_NAME "Sound Blaster Midi"
#define MIDI_SYNTH_CAPS 0
#include "midi_synth.h"
static struct midi_operations sb_midi_operations =
{
.owner = THIS_MODULE,
.info = {"Sound Blaster", 0, 0, SNDCARD_SB},
.converter = &std_midi_synth,
.in_info = {0},
.open = sb_midi_open,
.close = sb_midi_close,
.ioctl = sb_midi_ioctl,
.outputc = sb_midi_out,
.start_read = sb_midi_start_read,
.end_read = sb_midi_end_read,
};
void sb_dsp_midi_init(sb_devc * devc, struct module *owner)
{
int dev;
if (devc->model < 2) /* No MIDI support for SB 1.x */
return;
dev = sound_alloc_mididev();
if (dev == -1)
{
printk(KERN_ERR "sb_midi: too many MIDI devices detected\n");
return;
}
std_midi_synth.midi_dev = devc->my_mididev = dev;
midi_devs[dev] = kmalloc(sizeof(struct midi_operations), GFP_KERNEL);
if (midi_devs[dev] == NULL)
{
printk(KERN_WARNING "Sound Blaster: failed to allocate MIDI memory.\n");
sound_unload_mididev(dev);
return;
}
memcpy((char *) midi_devs[dev], (char *) &sb_midi_operations,
sizeof(struct midi_operations));
if (owner)
midi_devs[dev]->owner = owner;
midi_devs[dev]->devc = devc;
midi_devs[dev]->converter = kmalloc(sizeof(struct synth_operations), GFP_KERNEL);
if (midi_devs[dev]->converter == NULL)
{
printk(KERN_WARNING "Sound Blaster: failed to allocate MIDI memory.\n");
kfree(midi_devs[dev]);
sound_unload_mididev(dev);
return;
}
memcpy((char *) midi_devs[dev]->converter, (char *) &std_midi_synth,
sizeof(struct synth_operations));
midi_devs[dev]->converter->id = "SBMIDI";
sequencer_init();
}
='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Bhumika Goyal <bhumirks@gmail.com></td><td class='right'>2017-01-25 00:54:07 +0530</td></tr>
<tr><th>committer</th><td>Dan Williams <dan.j.williams@intel.com></td><td class='right'>2017-01-31 18:16:30 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/arch/x86/skylake?id=970d14e3989160ee9e97c7d75ecbc893fd29dab9'>970d14e3989160ee9e97c7d75ecbc893fd29dab9</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/perf/pmu-events/arch/x86/skylake?id=970d14e3989160ee9e97c7d75ecbc893fd29dab9'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=970d14e3989160ee9e97c7d75ecbc893fd29dab9'>4a731cac4efedb17f86a912ec56c151d26792abe</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/perf/pmu-events/arch/x86/skylake?id=970d14e3989160ee9e97c7d75ecbc893fd29dab9'>tools/perf/pmu-events/arch/x86/skylake</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/perf/pmu-events/arch/x86/skylake?id=7a308bb3016f57e5be11a677d15b821536419d36'>7a308bb3016f57e5be11a677d15b821536419d36</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/perf/pmu-events/arch/x86/skylake?id=970d14e3989160ee9e97c7d75ecbc893fd29dab9&id2=7a308bb3016f57e5be11a677d15b821536419d36'>diff</a>)</td></tr></table>
<div class='commit-subject'>nvdimm: constify device_type structures</div><div class='commit-msg'>Declare device_type structure as const as it is only stored in the
type field of a device structure. This field is of type const, so add
const to declaration of device_type structure.
File size before:
text data bss dec hex filename
19278 3199 16 22493 57dd nvdimm/namespace_devs.o
File size after:
text data bss dec hex filename
19929 3160 16 23105 5a41 nvdimm/namespace_devs.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=970d14e3989160ee9e97c7d75ecbc893fd29dab9'>Diffstat</a> (limited to 'tools/perf/pmu-events/arch/x86/skylake')</div><table summary='diffstat' class='diffstat'>