AetherDroid/android_kernel_samsung_on5xelte
1
0
Fork 0
mirror of https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git synced 2025-09-08 17:18:05 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Fixed MTP to work with TWRP

Browse source
This commit is contained in:
awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
sound/usb/usx2y/Makefile Normal file
View file

@ -0,0 +1,5 @@
snd-usb-usx2y-objs := usbusx2y.o usX2Yhwdep.o usx2yhwdeppcm.o
snd-usb-us122l-objs := us122l.o
obj-$(CONFIG_SND_USB_USX2Y) += snd-usb-usx2y.o
obj-$(CONFIG_SND_USB_US122L) += snd-usb-us122l.o

778
sound/usb/usx2y/us122l.c Normal file
View file

@ -0,0 +1,778 @@
/*
* Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/usb/audio.h>
#include <linux/module.h>
#include <sound/core.h>
#include <sound/hwdep.h>
#include <sound/pcm.h>
#include <sound/initval.h>
#define MODNAME "US122L"
#include "usb_stream.c"
#include "../usbaudio.h"
#include "../midi.h"
#include "us122l.h"
MODULE_AUTHOR("Karsten Wiese <fzu@wemgehoertderstaat.de>");
MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.5");
MODULE_LICENSE("GPL");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
/* Enable this card */
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
static int snd_us122l_card_used[SNDRV_CARDS];
static int us122l_create_usbmidi(struct snd_card *card)
{
static struct snd_usb_midi_endpoint_info quirk_data = {
.out_ep = 4,
.in_ep = 3,
.out_cables = 0x001,
.in_cables = 0x001
};
static struct snd_usb_audio_quirk quirk = {
.vendor_name = "US122L",
.product_name = NAME_ALLCAPS,
.ifnum = 1,
.type = QUIRK_MIDI_US122L,
.data = &quirk_data
};
struct usb_device *dev = US122L(card)->dev;
struct usb_interface *iface = usb_ifnum_to_if(dev, 1);
return snd_usbmidi_create(card, iface,
&US122L(card)->midi_list, &quirk);
}
static int us144_create_usbmidi(struct snd_card *card)
{
static struct snd_usb_midi_endpoint_info quirk_data = {
.out_ep = 4,
.in_ep = 3,
.out_cables = 0x001,
.in_cables = 0x001
};
static struct snd_usb_audio_quirk quirk = {
.vendor_name = "US144",
.product_name = NAME_ALLCAPS,
.ifnum = 0,
.type = QUIRK_MIDI_US122L,
.data = &quirk_data
};
struct usb_device *dev = US122L(card)->dev;
struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
return snd_usbmidi_create(card, iface,
&US122L(card)->midi_list, &quirk);
}
/*
* Wrapper for usb_control_msg().
* Allocates a temp buffer to prevent dmaing from/to the stack.
*/
static int us122l_ctl_msg(struct usb_device *dev, unsigned int pipe,
__u8 request, __u8 requesttype,
__u16 value, __u16 index, void *data,
__u16 size, int timeout)
{
int err;
void *buf = NULL;
if (size > 0) {
buf = kmemdup(data, size, GFP_KERNEL);
if (!buf)
return -ENOMEM;
}
err = usb_control_msg(dev, pipe, request, requesttype,
value, index, buf, size, timeout);
if (size > 0) {
memcpy(data, buf, size);
kfree(buf);
}
return err;
}
static void pt_info_set(struct usb_device *dev, u8 v)
{
int ret;
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
'I',
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
v, 0, NULL, 0, 1000);
snd_printdd(KERN_DEBUG "%i\n", ret);
}
static void usb_stream_hwdep_vm_open(struct vm_area_struct *area)
{
struct us122l *us122l = area->vm_private_data;
atomic_inc(&us122l->mmap_count);
snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count));
}
static int usb_stream_hwdep_vm_fault(struct vm_area_struct *area,
struct vm_fault *vmf)
{
unsigned long offset;
struct page *page;
void *vaddr;
struct us122l *us122l = area->vm_private_data;
struct usb_stream *s;
mutex_lock(&us122l->mutex);
s = us122l->sk.s;
if (!s)
goto unlock;
offset = vmf->pgoff << PAGE_SHIFT;
if (offset < PAGE_ALIGN(s->read_size))
vaddr = (char *)s + offset;
else {
offset -= PAGE_ALIGN(s->read_size);
if (offset >= PAGE_ALIGN(s->write_size))
goto unlock;
vaddr = us122l->sk.write_page + offset;
}
page = virt_to_page(vaddr);
get_page(page);
mutex_unlock(&us122l->mutex);
vmf->page = page;
return 0;
unlock:
mutex_unlock(&us122l->mutex);
return VM_FAULT_SIGBUS;
}
static void usb_stream_hwdep_vm_close(struct vm_area_struct *area)
{
struct us122l *us122l = area->vm_private_data;
atomic_dec(&us122l->mmap_count);
snd_printdd(KERN_DEBUG "%i\n", atomic_read(&us122l->mmap_count));
}
static const struct vm_operations_struct usb_stream_hwdep_vm_ops = {
.open = usb_stream_hwdep_vm_open,
.fault = usb_stream_hwdep_vm_fault,
.close = usb_stream_hwdep_vm_close,
};
static int usb_stream_hwdep_open(struct snd_hwdep *hw, struct file *file)
{
struct us122l *us122l = hw->private_data;
struct usb_interface *iface;
snd_printdd(KERN_DEBUG "%p %p\n", hw, file);
if (hw->used >= 2)
return -EBUSY;
if (!us122l->first)
us122l->first = file;
if (us122l->dev->descriptor.idProduct == USB_ID_US144 ||
us122l->dev->descriptor.idProduct == USB_ID_US144MKII) {
iface = usb_ifnum_to_if(us122l->dev, 0);
usb_autopm_get_interface(iface);
}
iface = usb_ifnum_to_if(us122l->dev, 1);
usb_autopm_get_interface(iface);
return 0;
}
static int usb_stream_hwdep_release(struct snd_hwdep *hw, struct file *file)
{
struct us122l *us122l = hw->private_data;
struct usb_interface *iface;
snd_printdd(KERN_DEBUG "%p %p\n", hw, file);
if (us122l->dev->descriptor.idProduct == USB_ID_US144 ||
us122l->dev->descriptor.idProduct == USB_ID_US144MKII) {
iface = usb_ifnum_to_if(us122l->dev, 0);
usb_autopm_put_interface(iface);
}
iface = usb_ifnum_to_if(us122l->dev, 1);
usb_autopm_put_interface(iface);
if (us122l->first == file)
us122l->first = NULL;
mutex_lock(&us122l->mutex);
if (us122l->master == file)
us122l->master = us122l->slave;
us122l->slave = NULL;
mutex_unlock(&us122l->mutex);
return 0;
}
static int usb_stream_hwdep_mmap(struct snd_hwdep *hw,
struct file *filp, struct vm_area_struct *area)
{
unsigned long size = area->vm_end - area->vm_start;
struct us122l *us122l = hw->private_data;
unsigned long offset;
struct usb_stream *s;
int err = 0;
bool read;
offset = area->vm_pgoff << PAGE_SHIFT;
mutex_lock(&us122l->mutex);
s = us122l->sk.s;
read = offset < s->read_size;
if (read && area->vm_flags & VM_WRITE) {
err = -EPERM;
goto out;
}
snd_printdd(KERN_DEBUG "%lu %u\n", size,
read ? s->read_size : s->write_size);
/* if userspace tries to mmap beyond end of our buffer, fail */
if (size > PAGE_ALIGN(read ? s->read_size : s->write_size)) {
snd_printk(KERN_WARNING "%lu > %u\n", size,
read ? s->read_size : s->write_size);
err = -EINVAL;
goto out;
}
area->vm_ops = &usb_stream_hwdep_vm_ops;
area->vm_flags |= VM_DONTDUMP;
if (!read)
area->vm_flags |= VM_DONTEXPAND;
area->vm_private_data = us122l;
atomic_inc(&us122l->mmap_count);
out:
mutex_unlock(&us122l->mutex);
return err;
}
static unsigned int usb_stream_hwdep_poll(struct snd_hwdep *hw,
struct file *file, poll_table *wait)
{
struct us122l *us122l = hw->private_data;
unsigned *polled;
unsigned int mask;
poll_wait(file, &us122l->sk.sleep, wait);
mask = POLLIN | POLLOUT | POLLWRNORM | POLLERR;
if (mutex_trylock(&us122l->mutex)) {
struct usb_stream *s = us122l->sk.s;
if (s && s->state == usb_stream_ready) {
if (us122l->first == file)
polled = &s->periods_polled;
else
polled = &us122l->second_periods_polled;
if (*polled != s->periods_done) {
*polled = s->periods_done;
mask = POLLIN | POLLOUT | POLLWRNORM;
} else
mask = 0;
}
mutex_unlock(&us122l->mutex);
}
return mask;
}
static void us122l_stop(struct us122l *us122l)
{
struct list_head *p;
list_for_each(p, &us122l->midi_list)
snd_usbmidi_input_stop(p);
usb_stream_stop(&us122l->sk);
usb_stream_free(&us122l->sk);
}
static int us122l_set_sample_rate(struct usb_device *dev, int rate)
{
unsigned int ep = 0x81;
unsigned char data[3];
int err;
data[0] = rate;
data[1] = rate >> 8;
data[2] = rate >> 16;
err = us122l_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC_SET_CUR,
USB_TYPE_CLASS|USB_RECIP_ENDPOINT|USB_DIR_OUT,
UAC_EP_CS_ATTR_SAMPLE_RATE << 8, ep, data, 3, 1000);
if (err < 0)
snd_printk(KERN_ERR "%d: cannot set freq %d to ep 0x%x\n",
dev->devnum, rate, ep);
return err;
}
static bool us122l_start(struct us122l *us122l,
unsigned rate, unsigned period_frames)
{
struct list_head *p;
int err;
unsigned use_packsize = 0;
bool success = false;
if (us122l->dev->speed == USB_SPEED_HIGH) {
/* The us-122l's descriptor defaults to iso max_packsize 78,
which isn't needed for samplerates <= 48000.
Lets save some memory:
*/
switch (rate) {
case 44100:
use_packsize = 36;
break;
case 48000:
use_packsize = 42;
break;
case 88200:
use_packsize = 72;
break;
}
}
if (!usb_stream_new(&us122l->sk, us122l->dev, 1, 2,
rate, use_packsize, period_frames, 6))
goto out;
err = us122l_set_sample_rate(us122l->dev, rate);
if (err < 0) {
us122l_stop(us122l);
snd_printk(KERN_ERR "us122l_set_sample_rate error \n");
goto out;
}
err = usb_stream_start(&us122l->sk);
if (err < 0) {
us122l_stop(us122l);
snd_printk(KERN_ERR "us122l_start error %i \n", err);
goto out;
}
list_for_each(p, &us122l->midi_list)
snd_usbmidi_input_start(p);
success = true;
out:
return success;
}
static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
unsigned cmd, unsigned long arg)
{
struct usb_stream_config *cfg;
struct us122l *us122l = hw->private_data;
struct usb_stream *s;
unsigned min_period_frames;
int err = 0;
bool high_speed;
if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS)
return -ENOTTY;
cfg = memdup_user((void *)arg, sizeof(*cfg));
if (IS_ERR(cfg))
return PTR_ERR(cfg);
if (cfg->version != USB_STREAM_INTERFACE_VERSION) {
err = -ENXIO;
goto free;
}
high_speed = us122l->dev->speed == USB_SPEED_HIGH;
if ((cfg->sample_rate != 44100 && cfg->sample_rate != 48000 &&
(!high_speed ||
(cfg->sample_rate != 88200 && cfg->sample_rate != 96000))) ||
cfg->frame_size != 6 ||
cfg->period_frames > 0x3000) {
err = -EINVAL;
goto free;
}
switch (cfg->sample_rate) {
case 44100:
min_period_frames = 48;
break;
case 48000:
min_period_frames = 52;
break;
default:
min_period_frames = 104;
break;
}
if (!high_speed)
min_period_frames <<= 1;
if (cfg->period_frames < min_period_frames) {
err = -EINVAL;
goto free;
}
snd_power_wait(hw->card, SNDRV_CTL_POWER_D0);
mutex_lock(&us122l->mutex);
s = us122l->sk.s;
if (!us122l->master)
us122l->master = file;
else if (us122l->master != file) {
if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg))) {
err = -EIO;
goto unlock;
}
us122l->slave = file;
}
if (!s || memcmp(cfg, &s->cfg, sizeof(*cfg)) ||
s->state == usb_stream_xrun) {
us122l_stop(us122l);
if (!us122l_start(us122l, cfg->sample_rate, cfg->period_frames))
err = -EIO;
else
err = 1;
}
unlock:
mutex_unlock(&us122l->mutex);
free:
kfree(cfg);
wake_up_all(&us122l->sk.sleep);
return err;
}
#define SND_USB_STREAM_ID "USB STREAM"
static int usb_stream_hwdep_new(struct snd_card *card)
{
int err;
struct snd_hwdep *hw;
struct usb_device *dev = US122L(card)->dev;
err = snd_hwdep_new(card, SND_USB_STREAM_ID, 0, &hw);
if (err < 0)
return err;
hw->iface = SNDRV_HWDEP_IFACE_USB_STREAM;
hw->private_data = US122L(card);
hw->ops.open = usb_stream_hwdep_open;
hw->ops.release = usb_stream_hwdep_release;
hw->ops.ioctl = usb_stream_hwdep_ioctl;
hw->ops.ioctl_compat = usb_stream_hwdep_ioctl;
hw->ops.mmap = usb_stream_hwdep_mmap;
hw->ops.poll = usb_stream_hwdep_poll;
sprintf(hw->name, "/proc/bus/usb/%03d/%03d/hwdeppcm",
dev->bus->busnum, dev->devnum);
return 0;
}
static bool us122l_create_card(struct snd_card *card)
{
int err;
struct us122l *us122l = US122L(card);
if (us122l->dev->descriptor.idProduct == USB_ID_US144 ||
us122l->dev->descriptor.idProduct == USB_ID_US144MKII) {
err = usb_set_interface(us122l->dev, 0, 1);
if (err) {
snd_printk(KERN_ERR "usb_set_interface error \n");
return false;
}
}
err = usb_set_interface(us122l->dev, 1, 1);
if (err) {
snd_printk(KERN_ERR "usb_set_interface error \n");
return false;
}
pt_info_set(us122l->dev, 0x11);
pt_info_set(us122l->dev, 0x10);
if (!us122l_start(us122l, 44100, 256))
return false;
if (us122l->dev->descriptor.idProduct == USB_ID_US144 ||
us122l->dev->descriptor.idProduct == USB_ID_US144MKII)
err = us144_create_usbmidi(card);
else
err = us122l_create_usbmidi(card);
if (err < 0) {
snd_printk(KERN_ERR "us122l_create_usbmidi error %i \n", err);
us122l_stop(us122l);
return false;
}
err = usb_stream_hwdep_new(card);
if (err < 0) {
/* release the midi resources */
struct list_head *p;
list_for_each(p, &us122l->midi_list)
snd_usbmidi_disconnect(p);
us122l_stop(us122l);
return false;
}
return true;
}
static void snd_us122l_free(struct snd_card *card)
{
struct us122l *us122l = US122L(card);
int index = us122l->card_index;
if (index >= 0 && index < SNDRV_CARDS)
snd_us122l_card_used[index] = 0;
}
static int usx2y_create_card(struct usb_device *device,
struct usb_interface *intf,
struct snd_card **cardp)
{
int dev;
struct snd_card *card;
int err;
for (dev = 0; dev < SNDRV_CARDS; ++dev)
if (enable[dev] && !snd_us122l_card_used[dev])
break;
if (dev >= SNDRV_CARDS)
return -ENODEV;
err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE,
sizeof(struct us122l), &card);
if (err < 0)
return err;
snd_us122l_card_used[US122L(card)->card_index = dev] = 1;
card->private_free = snd_us122l_free;
US122L(card)->dev = device;
mutex_init(&US122L(card)->mutex);
init_waitqueue_head(&US122L(card)->sk.sleep);
INIT_LIST_HEAD(&US122L(card)->midi_list);
strcpy(card->driver, "USB "NAME_ALLCAPS"");
sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
card->shortname,
le16_to_cpu(device->descriptor.idVendor),
le16_to_cpu(device->descriptor.idProduct),
0,
US122L(card)->dev->bus->busnum,
US122L(card)->dev->devnum
);
*cardp = card;
return 0;
}
static int us122l_usb_probe(struct usb_interface *intf,
const struct usb_device_id *device_id,
struct snd_card **cardp)
{
struct usb_device *device = interface_to_usbdev(intf);
struct snd_card *card;
int err;
err = usx2y_create_card(device, intf, &card);
if (err < 0)
return err;
if (!us122l_create_card(card)) {
snd_card_free(card);
return -EINVAL;
}
err = snd_card_register(card);
if (err < 0) {
snd_card_free(card);
return err;
}
usb_get_intf(usb_ifnum_to_if(device, 0));
usb_get_dev(device);
*cardp = card;
return 0;
}
static int snd_us122l_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct usb_device *device = interface_to_usbdev(intf);
struct snd_card *card;
int err;
if ((device->descriptor.idProduct == USB_ID_US144 ||
device->descriptor.idProduct == USB_ID_US144MKII)
&& device->speed == USB_SPEED_HIGH) {
snd_printk(KERN_ERR "disable ehci-hcd to run US-144 \n");
return -ENODEV;
}
snd_printdd(KERN_DEBUG"%p:%i\n",
intf, intf->cur_altsetting->desc.bInterfaceNumber);
if (intf->cur_altsetting->desc.bInterfaceNumber != 1)
return 0;
err = us122l_usb_probe(usb_get_intf(intf), id, &card);
if (err < 0) {
usb_put_intf(intf);
return err;
}
usb_set_intfdata(intf, card);
return 0;
}
static void snd_us122l_disconnect(struct usb_interface *intf)
{
struct snd_card *card;
struct us122l *us122l;
struct list_head *p;
card = usb_get_intfdata(intf);
if (!card)
return;
snd_card_disconnect(card);
us122l = US122L(card);
mutex_lock(&us122l->mutex);
us122l_stop(us122l);
mutex_unlock(&us122l->mutex);
/* release the midi resources */
list_for_each(p, &us122l->midi_list) {
snd_usbmidi_disconnect(p);
}
usb_put_intf(usb_ifnum_to_if(us122l->dev, 0));
usb_put_intf(usb_ifnum_to_if(us122l->dev, 1));
usb_put_dev(us122l->dev);
while (atomic_read(&us122l->mmap_count))
msleep(500);
snd_card_free(card);
}
static int snd_us122l_suspend(struct usb_interface *intf, pm_message_t message)
{
struct snd_card *card;
struct us122l *us122l;
struct list_head *p;
card = usb_get_intfdata(intf);
if (!card)
return 0;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
us122l = US122L(card);
if (!us122l)
return 0;
list_for_each(p, &us122l->midi_list)
snd_usbmidi_input_stop(p);
mutex_lock(&us122l->mutex);
usb_stream_stop(&us122l->sk);
mutex_unlock(&us122l->mutex);
return 0;
}
static int snd_us122l_resume(struct usb_interface *intf)
{
struct snd_card *card;
struct us122l *us122l;
struct list_head *p;
int err;
card = usb_get_intfdata(intf);
if (!card)
return 0;
us122l = US122L(card);
if (!us122l)
return 0;
mutex_lock(&us122l->mutex);
/* needed, doesn't restart without: */
if (us122l->dev->descriptor.idProduct == USB_ID_US144 ||
us122l->dev->descriptor.idProduct == USB_ID_US144MKII) {
err = usb_set_interface(us122l->dev, 0, 1);
if (err) {
snd_printk(KERN_ERR "usb_set_interface error \n");
goto unlock;
}
}
err = usb_set_interface(us122l->dev, 1, 1);
if (err) {
snd_printk(KERN_ERR "usb_set_interface error \n");
goto unlock;
}
pt_info_set(us122l->dev, 0x11);
pt_info_set(us122l->dev, 0x10);
err = us122l_set_sample_rate(us122l->dev,
us122l->sk.s->cfg.sample_rate);
if (err < 0) {
snd_printk(KERN_ERR "us122l_set_sample_rate error \n");
goto unlock;
}
err = usb_stream_start(&us122l->sk);
if (err)
goto unlock;
list_for_each(p, &us122l->midi_list)
snd_usbmidi_input_start(p);
unlock:
mutex_unlock(&us122l->mutex);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return err;
}
static struct usb_device_id snd_us122l_usb_id_table[] = {
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = 0x0644,
.idProduct = USB_ID_US122L
},
{ /* US-144 only works at USB1.1! Disable module ehci-hcd. */
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = 0x0644,
.idProduct = USB_ID_US144
},
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = 0x0644,
.idProduct = USB_ID_US122MKII
},
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = 0x0644,
.idProduct = USB_ID_US144MKII
},
{ /* terminator */ }
};
MODULE_DEVICE_TABLE(usb, snd_us122l_usb_id_table);
static struct usb_driver snd_us122l_usb_driver = {
.name = "snd-usb-us122l",
.probe = snd_us122l_probe,
.disconnect = snd_us122l_disconnect,
.suspend = snd_us122l_suspend,
.resume = snd_us122l_resume,
.reset_resume = snd_us122l_resume,
.id_table = snd_us122l_usb_id_table,
.supports_autosuspend = 1
};
module_usb_driver(snd_us122l_usb_driver);

31
sound/usb/usx2y/us122l.h Normal file
View file

@ -0,0 +1,31 @@
#ifndef US122L_H
#define US122L_H
struct us122l {
struct usb_device *dev;
int card_index;
int stride;
struct usb_stream_kernel sk;
struct mutex mutex;
struct file *first;
unsigned second_periods_polled;
struct file *master;
struct file *slave;
struct list_head midi_list;
atomic_t mmap_count;
};
#define US122L(c) ((struct us122l *)(c)->private_data)
#define NAME_ALLCAPS "US-122L"
#define USB_ID_US122L 0x800E
#define USB_ID_US144 0x800F
#define USB_ID_US122MKII 0x8021
#define USB_ID_US144MKII 0x8020
#endif

265
sound/usb/usx2y/usX2Yhwdep.c Normal file
View file

@ -0,0 +1,265 @@
/*
* Driver for Tascam US-X2Y USB soundcards
*
* FPGA Loader + ALSA Startup
*
* Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de>
*
* 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/interrupt.h>
#include <linux/slab.h>
#include <linux/usb.h>
#include <sound/core.h>
#include <sound/memalloc.h>
#include <sound/pcm.h>
#include <sound/hwdep.h>
#include "usx2y.h"
#include "usbusx2y.h"
#include "usX2Yhwdep.h"
static int snd_us428ctls_vm_fault(struct vm_area_struct *area,
struct vm_fault *vmf)
{
unsigned long offset;
struct page * page;
void *vaddr;
snd_printdd("ENTER, start %lXh, pgoff %ld\n",
area->vm_start,
vmf->pgoff);
offset = vmf->pgoff << PAGE_SHIFT;
vaddr = (char*)((struct usX2Ydev *)area->vm_private_data)->us428ctls_sharedmem + offset;
page = virt_to_page(vaddr);
get_page(page);
vmf->page = page;
snd_printdd("vaddr=%p made us428ctls_vm_fault() page %p\n",
vaddr, page);
return 0;
}
static const struct vm_operations_struct us428ctls_vm_ops = {
.fault = snd_us428ctls_vm_fault,
};
static int snd_us428ctls_mmap(struct snd_hwdep * hw, struct file *filp, struct vm_area_struct *area)
{
unsigned long size = (unsigned long)(area->vm_end - area->vm_start);
struct usX2Ydev *us428 = hw->private_data;
// FIXME this hwdep interface is used twice: fpga download and mmap for controlling Lights etc. Maybe better using 2 hwdep devs?
// so as long as the device isn't fully initialised yet we return -EBUSY here.
if (!(us428->chip_status & USX2Y_STAT_CHIP_INIT))
return -EBUSY;
/* if userspace tries to mmap beyond end of our buffer, fail */
if (size > PAGE_ALIGN(sizeof(struct us428ctls_sharedmem))) {
snd_printd( "%lu > %lu\n", size, (unsigned long)sizeof(struct us428ctls_sharedmem));
return -EINVAL;
}
if (!us428->us428ctls_sharedmem) {
init_waitqueue_head(&us428->us428ctls_wait_queue_head);
if(!(us428->us428ctls_sharedmem = snd_malloc_pages(sizeof(struct us428ctls_sharedmem), GFP_KERNEL)))
return -ENOMEM;
memset(us428->us428ctls_sharedmem, -1, sizeof(struct us428ctls_sharedmem));
us428->us428ctls_sharedmem->CtlSnapShotLast = -2;
}
area->vm_ops = &us428ctls_vm_ops;
area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
area->vm_private_data = hw->private_data;
return 0;
}
static unsigned int snd_us428ctls_poll(struct snd_hwdep *hw, struct file *file, poll_table *wait)
{
unsigned int mask = 0;
struct usX2Ydev *us428 = hw->private_data;
struct us428ctls_sharedmem *shm = us428->us428ctls_sharedmem;
if (us428->chip_status & USX2Y_STAT_CHIP_HUP)
return POLLHUP;
poll_wait(file, &us428->us428ctls_wait_queue_head, wait);
if (shm != NULL && shm->CtlSnapShotLast != shm->CtlSnapShotRed)
mask |= POLLIN;
return mask;
}
static int snd_usX2Y_hwdep_dsp_status(struct snd_hwdep *hw,
struct snd_hwdep_dsp_status *info)
{
static char *type_ids[USX2Y_TYPE_NUMS] = {
[USX2Y_TYPE_122] = "us122",
[USX2Y_TYPE_224] = "us224",
[USX2Y_TYPE_428] = "us428",
};
struct usX2Ydev *us428 = hw->private_data;
int id = -1;
switch (le16_to_cpu(us428->dev->descriptor.idProduct)) {
case USB_ID_US122:
id = USX2Y_TYPE_122;
break;
case USB_ID_US224:
id = USX2Y_TYPE_224;
break;
case USB_ID_US428:
id = USX2Y_TYPE_428;
break;
}
if (0 > id)
return -ENODEV;
strcpy(info->id, type_ids[id]);
info->num_dsps = 2; // 0: Prepad Data, 1: FPGA Code
if (us428->chip_status & USX2Y_STAT_CHIP_INIT)
info->chip_ready = 1;
info->version = USX2Y_DRIVER_VERSION;
return 0;
}
static int usX2Y_create_usbmidi(struct snd_card *card)
{
static struct snd_usb_midi_endpoint_info quirk_data_1 = {
.out_ep = 0x06,
.in_ep = 0x06,
.out_cables = 0x001,
.in_cables = 0x001
};
static struct snd_usb_audio_quirk quirk_1 = {
.vendor_name = "TASCAM",
.product_name = NAME_ALLCAPS,
.ifnum = 0,
.type = QUIRK_MIDI_FIXED_ENDPOINT,
.data = &quirk_data_1
};
static struct snd_usb_midi_endpoint_info quirk_data_2 = {
.out_ep = 0x06,
.in_ep = 0x06,
.out_cables = 0x003,
.in_cables = 0x003
};
static struct snd_usb_audio_quirk quirk_2 = {
.vendor_name = "TASCAM",
.product_name = "US428",
.ifnum = 0,
.type = QUIRK_MIDI_FIXED_ENDPOINT,
.data = &quirk_data_2
};
struct usb_device *dev = usX2Y(card)->dev;
struct usb_interface *iface = usb_ifnum_to_if(dev, 0);
struct snd_usb_audio_quirk *quirk =
le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ?
&quirk_2 : &quirk_1;
snd_printdd("usX2Y_create_usbmidi \n");
return snd_usbmidi_create(card, iface, &usX2Y(card)->midi_list, quirk);
}
static int usX2Y_create_alsa_devices(struct snd_card *card)
{
int err;
do {
if ((err = usX2Y_create_usbmidi(card)) < 0) {
snd_printk(KERN_ERR "usX2Y_create_alsa_devices: usX2Y_create_usbmidi error %i \n", err);
break;
}
if ((err = usX2Y_audio_create(card)) < 0)
break;
if ((err = usX2Y_hwdep_pcm_new(card)) < 0)
break;
if ((err = snd_card_register(card)) < 0)
break;
} while (0);
return err;
}
static int snd_usX2Y_hwdep_dsp_load(struct snd_hwdep *hw,
struct snd_hwdep_dsp_image *dsp)
{
struct usX2Ydev *priv = hw->private_data;
int lret, err = -EINVAL;
snd_printdd( "dsp_load %s\n", dsp->name);
if (access_ok(VERIFY_READ, dsp->image, dsp->length)) {
struct usb_device* dev = priv->dev;
char *buf;
buf = memdup_user(dsp->image, dsp->length);
if (IS_ERR(buf))
return PTR_ERR(buf);
err = usb_set_interface(dev, 0, 1);
if (err)
snd_printk(KERN_ERR "usb_set_interface error \n");
else
err = usb_bulk_msg(dev, usb_sndbulkpipe(dev, 2), buf, dsp->length, &lret, 6000);
kfree(buf);
}
if (err)
return err;
if (dsp->index == 1) {
msleep(250); // give the device some time
err = usX2Y_AsyncSeq04_init(priv);
if (err) {
snd_printk(KERN_ERR "usX2Y_AsyncSeq04_init error \n");
return err;
}
err = usX2Y_In04_init(priv);
if (err) {
snd_printk(KERN_ERR "usX2Y_In04_init error \n");
return err;
}
err = usX2Y_create_alsa_devices(hw->card);
if (err) {
snd_printk(KERN_ERR "usX2Y_create_alsa_devices error %i \n", err);
snd_card_free(hw->card);
return err;
}
priv->chip_status |= USX2Y_STAT_CHIP_INIT;
snd_printdd("%s: alsa all started\n", hw->name);
}
return err;
}
int usX2Y_hwdep_new(struct snd_card *card, struct usb_device* device)
{
int err;
struct snd_hwdep *hw;
if ((err = snd_hwdep_new(card, SND_USX2Y_LOADER_ID, 0, &hw)) < 0)
return err;
hw->iface = SNDRV_HWDEP_IFACE_USX2Y;
hw->private_data = usX2Y(card);
hw->ops.dsp_status = snd_usX2Y_hwdep_dsp_status;
hw->ops.dsp_load = snd_usX2Y_hwdep_dsp_load;
hw->ops.mmap = snd_us428ctls_mmap;
hw->ops.poll = snd_us428ctls_poll;
hw->exclusive = 1;
sprintf(hw->name, "/proc/bus/usb/%03d/%03d", device->bus->busnum, device->devnum);
return 0;
}

6
sound/usb/usx2y/usX2Yhwdep.h Normal file
View file

@ -0,0 +1,6 @@
#ifndef USX2YHWDEP_H
#define USX2YHWDEP_H
int usX2Y_hwdep_new(struct snd_card *card, struct usb_device* device);
#endif

753
sound/usb/usx2y/usb_stream.c Normal file
View file

@ -0,0 +1,753 @@
/*
* Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/usb.h>
#include <linux/gfp.h>
#include "usb_stream.h"
/* setup */
static unsigned usb_stream_next_packet_size(struct usb_stream_kernel *sk)
{
struct usb_stream *s = sk->s;
sk->out_phase_peeked = (sk->out_phase & 0xffff) + sk->freqn;
return (sk->out_phase_peeked >> 16) * s->cfg.frame_size;
}
static void playback_prep_freqn(struct usb_stream_kernel *sk, struct urb *urb)
{
struct usb_stream *s = sk->s;
int pack, lb = 0;
for (pack = 0; pack < sk->n_o_ps; pack++) {
int l = usb_stream_next_packet_size(sk);
if (s->idle_outsize + lb + l > s->period_size)
goto check;
sk->out_phase = sk->out_phase_peeked;
urb->iso_frame_desc[pack].offset = lb;
urb->iso_frame_desc[pack].length = l;
lb += l;
}
snd_printdd(KERN_DEBUG "%i\n", lb);
check:
urb->number_of_packets = pack;
urb->transfer_buffer_length = lb;
s->idle_outsize += lb - s->period_size;
snd_printdd(KERN_DEBUG "idle=%i ul=%i ps=%i\n", s->idle_outsize,
lb, s->period_size);
}
static void init_pipe_urbs(struct usb_stream_kernel *sk, unsigned use_packsize,
struct urb **urbs, char *transfer,
struct usb_device *dev, int pipe)
{
int u, p;
int maxpacket = use_packsize ?
use_packsize : usb_maxpacket(dev, pipe, usb_pipeout(pipe));
int transfer_length = maxpacket * sk->n_o_ps;
for (u = 0; u < USB_STREAM_NURBS;
++u, transfer += transfer_length) {
struct urb *urb = urbs[u];
struct usb_iso_packet_descriptor *desc;
urb->transfer_buffer = transfer;
urb->dev = dev;
urb->pipe = pipe;
urb->number_of_packets = sk->n_o_ps;
urb->context = sk;
urb->interval = 1;
if (usb_pipeout(pipe))
continue;
urb->transfer_buffer_length = transfer_length;
desc = urb->iso_frame_desc;
desc->offset = 0;
desc->length = maxpacket;
for (p = 1; p < sk->n_o_ps; ++p) {
desc[p].offset = desc[p - 1].offset + maxpacket;
desc[p].length = maxpacket;
}
}
}
static void init_urbs(struct usb_stream_kernel *sk, unsigned use_packsize,
struct usb_device *dev, int in_pipe, int out_pipe)
{
struct usb_stream *s = sk->s;
char *indata = (char *)s + sizeof(*s) +
sizeof(struct usb_stream_packet) *
s->inpackets;
int u;
for (u = 0; u < USB_STREAM_NURBS; ++u) {
sk->inurb[u] = usb_alloc_urb(sk->n_o_ps, GFP_KERNEL);
sk->outurb[u] = usb_alloc_urb(sk->n_o_ps, GFP_KERNEL);
}
init_pipe_urbs(sk, use_packsize, sk->inurb, indata, dev, in_pipe);
init_pipe_urbs(sk, use_packsize, sk->outurb, sk->write_page, dev,
out_pipe);
}
/*
* convert a sampling rate into our full speed format (fs/1000 in Q16.16)
* this will overflow at approx 524 kHz
*/
static inline unsigned get_usb_full_speed_rate(unsigned rate)
{
return ((rate << 13) + 62) / 125;
}
/*
* convert a sampling rate into USB high speed format (fs/8000 in Q16.16)
* this will overflow at approx 4 MHz
*/
static inline unsigned get_usb_high_speed_rate(unsigned rate)
{
return ((rate << 10) + 62) / 125;
}
void usb_stream_free(struct usb_stream_kernel *sk)
{
struct usb_stream *s;
unsigned u;
for (u = 0; u < USB_STREAM_NURBS; ++u) {
usb_free_urb(sk->inurb[u]);
sk->inurb[u] = NULL;
usb_free_urb(sk->outurb[u]);
sk->outurb[u] = NULL;
}
s = sk->s;
if (!s)
return;
free_pages((unsigned long)sk->write_page, get_order(s->write_size));
sk->write_page = NULL;
free_pages((unsigned long)s, get_order(s->read_size));
sk->s = NULL;
}
struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk,
struct usb_device *dev,
unsigned in_endpoint, unsigned out_endpoint,
unsigned sample_rate, unsigned use_packsize,
unsigned period_frames, unsigned frame_size)
{
int packets, max_packsize;
int in_pipe, out_pipe;
int read_size = sizeof(struct usb_stream);
int write_size;
int usb_frames = dev->speed == USB_SPEED_HIGH ? 8000 : 1000;
int pg;
in_pipe = usb_rcvisocpipe(dev, in_endpoint);
out_pipe = usb_sndisocpipe(dev, out_endpoint);
max_packsize = use_packsize ?
use_packsize : usb_maxpacket(dev, in_pipe, 0);
/*
t_period = period_frames / sample_rate
iso_packs = t_period / t_iso_frame
= (period_frames / sample_rate) * (1 / t_iso_frame)
*/
packets = period_frames * usb_frames / sample_rate + 1;
if (dev->speed == USB_SPEED_HIGH)
packets = (packets + 7) & ~7;
read_size += packets * USB_STREAM_URBDEPTH *
(max_packsize + sizeof(struct usb_stream_packet));
max_packsize = usb_maxpacket(dev, out_pipe, 1);
write_size = max_packsize * packets * USB_STREAM_URBDEPTH;
if (read_size >= 256*PAGE_SIZE || write_size >= 256*PAGE_SIZE) {
snd_printk(KERN_WARNING "a size exceeds 128*PAGE_SIZE\n");
goto out;
}
pg = get_order(read_size);
sk->s = (void *) __get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO, pg);
if (!sk->s) {
snd_printk(KERN_WARNING "couldn't __get_free_pages()\n");
goto out;
}
sk->s->cfg.version = USB_STREAM_INTERFACE_VERSION;
sk->s->read_size = read_size;
sk->s->cfg.sample_rate = sample_rate;
sk->s->cfg.frame_size = frame_size;
sk->n_o_ps = packets;
sk->s->inpackets = packets * USB_STREAM_URBDEPTH;
sk->s->cfg.period_frames = period_frames;
sk->s->period_size = frame_size * period_frames;
sk->s->write_size = write_size;
pg = get_order(write_size);
sk->write_page =
(void *)__get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO, pg);
if (!sk->write_page) {
snd_printk(KERN_WARNING "couldn't __get_free_pages()\n");
usb_stream_free(sk);
return NULL;
}
/* calculate the frequency in 16.16 format */
if (dev->speed == USB_SPEED_FULL)
sk->freqn = get_usb_full_speed_rate(sample_rate);
else
sk->freqn = get_usb_high_speed_rate(sample_rate);
init_urbs(sk, use_packsize, dev, in_pipe, out_pipe);
sk->s->state = usb_stream_stopped;
out:
return sk->s;
}
/* start */
static bool balance_check(struct usb_stream_kernel *sk, struct urb *urb)
{
bool r;
if (unlikely(urb->status)) {
if (urb->status != -ESHUTDOWN && urb->status != -ENOENT)
snd_printk(KERN_WARNING "status=%i\n", urb->status);
sk->iso_frame_balance = 0x7FFFFFFF;
return false;
}
r = sk->iso_frame_balance == 0;
if (!r)
sk->i_urb = urb;
return r;
}
static bool balance_playback(struct usb_stream_kernel *sk, struct urb *urb)
{
sk->iso_frame_balance += urb->number_of_packets;
return balance_check(sk, urb);
}
static bool balance_capture(struct usb_stream_kernel *sk, struct urb *urb)
{
sk->iso_frame_balance -= urb->number_of_packets;
return balance_check(sk, urb);
}
static void subs_set_complete(struct urb **urbs, void (*complete)(struct urb *))
{
int u;
for (u = 0; u < USB_STREAM_NURBS; u++) {
struct urb *urb = urbs[u];
urb->complete = complete;
}
}
static int usb_stream_prepare_playback(struct usb_stream_kernel *sk,
struct urb *inurb)
{
struct usb_stream *s = sk->s;
struct urb *io;
struct usb_iso_packet_descriptor *id, *od;
int p = 0, lb = 0, l = 0;
io = sk->idle_outurb;
od = io->iso_frame_desc;
for (; s->sync_packet < 0; ++p, ++s->sync_packet) {
struct urb *ii = sk->completed_inurb;
id = ii->iso_frame_desc +
ii->number_of_packets + s->sync_packet;
l = id->actual_length;
od[p].length = l;
od[p].offset = lb;
lb += l;
}
for (;
s->sync_packet < inurb->number_of_packets && p < sk->n_o_ps;
++p, ++s->sync_packet) {
l = inurb->iso_frame_desc[s->sync_packet].actual_length;
if (s->idle_outsize + lb + l > s->period_size)
goto check_ok;
od[p].length = l;
od[p].offset = lb;
lb += l;
}
check_ok:
s->sync_packet -= inurb->number_of_packets;
if (unlikely(s->sync_packet < -2 || s->sync_packet > 0)) {
snd_printk(KERN_WARNING "invalid sync_packet = %i;"
" p=%i nop=%i %i %x %x %x > %x\n",
s->sync_packet, p, inurb->number_of_packets,
s->idle_outsize + lb + l,
s->idle_outsize, lb, l,
s->period_size);
return -1;
}
if (unlikely(lb % s->cfg.frame_size)) {
snd_printk(KERN_WARNING"invalid outsize = %i\n",
lb);
return -1;
}
s->idle_outsize += lb - s->period_size;
io->number_of_packets = p;
io->transfer_buffer_length = lb;
if (s->idle_outsize <= 0)
return 0;
snd_printk(KERN_WARNING "idle=%i\n", s->idle_outsize);
return -1;
}
static void prepare_inurb(int number_of_packets, struct urb *iu)
{
struct usb_iso_packet_descriptor *id;
int p;
iu->number_of_packets = number_of_packets;
id = iu->iso_frame_desc;
id->offset = 0;
for (p = 0; p < iu->number_of_packets - 1; ++p)
id[p + 1].offset = id[p].offset + id[p].length;
iu->transfer_buffer_length =
id[0].length * iu->number_of_packets;
}
static int submit_urbs(struct usb_stream_kernel *sk,
struct urb *inurb, struct urb *outurb)
{
int err;
prepare_inurb(sk->idle_outurb->number_of_packets, sk->idle_inurb);
err = usb_submit_urb(sk->idle_inurb, GFP_ATOMIC);
if (err < 0) {
snd_printk(KERN_ERR "%i\n", err);
return err;
}
sk->idle_inurb = sk->completed_inurb;
sk->completed_inurb = inurb;
err = usb_submit_urb(sk->idle_outurb, GFP_ATOMIC);
if (err < 0) {
snd_printk(KERN_ERR "%i\n", err);
return err;
}
sk->idle_outurb = sk->completed_outurb;
sk->completed_outurb = outurb;
return 0;
}
#ifdef DEBUG_LOOP_BACK
/*
This loop_back() shows how to read/write the period data.
*/
static void loop_back(struct usb_stream *s)
{
char *i, *o;
int il, ol, l, p;
struct urb *iu;
struct usb_iso_packet_descriptor *id;
o = s->playback1st_to;
ol = s->playback1st_size;
l = 0;
if (s->insplit_pack >= 0) {
iu = sk->idle_inurb;
id = iu->iso_frame_desc;
p = s->insplit_pack;
} else
goto second;
loop:
for (; p < iu->number_of_packets && l < s->period_size; ++p) {
i = iu->transfer_buffer + id[p].offset;
il = id[p].actual_length;
if (l + il > s->period_size)
il = s->period_size - l;
if (il <= ol) {
memcpy(o, i, il);
o += il;
ol -= il;
} else {
memcpy(o, i, ol);
singen_6pack(o, ol);
o = s->playback_to;
memcpy(o, i + ol, il - ol);
o += il - ol;
ol = s->period_size - s->playback1st_size;
}
l += il;
}
if (iu == sk->completed_inurb) {
if (l != s->period_size)
printk(KERN_DEBUG"%s:%i %i\n", __func__, __LINE__,
l/(int)s->cfg.frame_size);
return;
}
second:
iu = sk->completed_inurb;
id = iu->iso_frame_desc;
p = 0;
goto loop;
}
#else
static void loop_back(struct usb_stream *s)
{
}
#endif
static void stream_idle(struct usb_stream_kernel *sk,
struct urb *inurb, struct urb *outurb)
{
struct usb_stream *s = sk->s;
int l, p;
int insize = s->idle_insize;
int urb_size = 0;
s->inpacket_split = s->next_inpacket_split;
s->inpacket_split_at = s->next_inpacket_split_at;
s->next_inpacket_split = -1;
s->next_inpacket_split_at = 0;
for (p = 0; p < inurb->number_of_packets; ++p) {
struct usb_iso_packet_descriptor *id = inurb->iso_frame_desc;
l = id[p].actual_length;
if (unlikely(l == 0 || id[p].status)) {
snd_printk(KERN_WARNING "underrun, status=%u\n",
id[p].status);
goto err_out;
}
s->inpacket_head++;
s->inpacket_head %= s->inpackets;
if (s->inpacket_split == -1)
s->inpacket_split = s->inpacket_head;
s->inpacket[s->inpacket_head].offset =
id[p].offset + (inurb->transfer_buffer - (void *)s);
s->inpacket[s->inpacket_head].length = l;
if (insize + l > s->period_size &&
s->next_inpacket_split == -1) {
s->next_inpacket_split = s->inpacket_head;
s->next_inpacket_split_at = s->period_size - insize;
}
insize += l;
urb_size += l;
}
s->idle_insize += urb_size - s->period_size;
if (s->idle_insize < 0) {
snd_printk(KERN_WARNING "%i\n",
(s->idle_insize)/(int)s->cfg.frame_size);
goto err_out;
}
s->insize_done += urb_size;
l = s->idle_outsize;
s->outpacket[0].offset = (sk->idle_outurb->transfer_buffer -
sk->write_page) - l;
if (usb_stream_prepare_playback(sk, inurb) < 0)
goto err_out;
s->outpacket[0].length = sk->idle_outurb->transfer_buffer_length + l;
s->outpacket[1].offset = sk->completed_outurb->transfer_buffer -
sk->write_page;
if (submit_urbs(sk, inurb, outurb) < 0)
goto err_out;
loop_back(s);
s->periods_done++;
wake_up_all(&sk->sleep);
return;
err_out:
s->state = usb_stream_xrun;
wake_up_all(&sk->sleep);
}
static void i_capture_idle(struct urb *urb)
{
struct usb_stream_kernel *sk = urb->context;
if (balance_capture(sk, urb))
stream_idle(sk, urb, sk->i_urb);
}
static void i_playback_idle(struct urb *urb)
{
struct usb_stream_kernel *sk = urb->context;
if (balance_playback(sk, urb))
stream_idle(sk, sk->i_urb, urb);
}
static void stream_start(struct usb_stream_kernel *sk,
struct urb *inurb, struct urb *outurb)
{
struct usb_stream *s = sk->s;
if (s->state >= usb_stream_sync1) {
int l, p, max_diff, max_diff_0;
int urb_size = 0;
unsigned frames_per_packet, min_frames = 0;
frames_per_packet = (s->period_size - s->idle_insize);
frames_per_packet <<= 8;
frames_per_packet /=
s->cfg.frame_size * inurb->number_of_packets;
frames_per_packet++;
max_diff_0 = s->cfg.frame_size;
if (s->cfg.period_frames >= 256)
max_diff_0 <<= 1;
if (s->cfg.period_frames >= 1024)
max_diff_0 <<= 1;
max_diff = max_diff_0;
for (p = 0; p < inurb->number_of_packets; ++p) {
int diff;
l = inurb->iso_frame_desc[p].actual_length;
urb_size += l;
min_frames += frames_per_packet;
diff = urb_size -
(min_frames >> 8) * s->cfg.frame_size;
if (diff < max_diff) {
snd_printdd(KERN_DEBUG "%i %i %i %i\n",
s->insize_done,
urb_size / (int)s->cfg.frame_size,
inurb->number_of_packets, diff);
max_diff = diff;
}
}
s->idle_insize -= max_diff - max_diff_0;
s->idle_insize += urb_size - s->period_size;
if (s->idle_insize < 0) {
snd_printk(KERN_WARNING "%i %i %i\n",
s->idle_insize, urb_size, s->period_size);
return;
} else if (s->idle_insize == 0) {
s->next_inpacket_split =
(s->inpacket_head + 1) % s->inpackets;
s->next_inpacket_split_at = 0;
} else {
unsigned split = s->inpacket_head;
l = s->idle_insize;
while (l > s->inpacket[split].length) {
l -= s->inpacket[split].length;
if (split == 0)
split = s->inpackets - 1;
else
split--;
}
s->next_inpacket_split = split;
s->next_inpacket_split_at =
s->inpacket[split].length - l;
}
s->insize_done += urb_size;
if (usb_stream_prepare_playback(sk, inurb) < 0)
return;
} else
playback_prep_freqn(sk, sk->idle_outurb);
if (submit_urbs(sk, inurb, outurb) < 0)
return;
if (s->state == usb_stream_sync1 && s->insize_done > 360000) {
/* just guesswork ^^^^^^ */
s->state = usb_stream_ready;
subs_set_complete(sk->inurb, i_capture_idle);
subs_set_complete(sk->outurb, i_playback_idle);
}
}
static void i_capture_start(struct urb *urb)
{
struct usb_iso_packet_descriptor *id = urb->iso_frame_desc;
struct usb_stream_kernel *sk = urb->context;
struct usb_stream *s = sk->s;
int p;
int empty = 0;
if (urb->status) {
snd_printk(KERN_WARNING "status=%i\n", urb->status);
return;
}
for (p = 0; p < urb->number_of_packets; ++p) {
int l = id[p].actual_length;
if (l < s->cfg.frame_size) {
++empty;
if (s->state >= usb_stream_sync0) {
snd_printk(KERN_WARNING "%i\n", l);
return;
}
}
s->inpacket_head++;
s->inpacket_head %= s->inpackets;
s->inpacket[s->inpacket_head].offset =
id[p].offset + (urb->transfer_buffer - (void *)s);
s->inpacket[s->inpacket_head].length = l;
}
#ifdef SHOW_EMPTY
if (empty) {
printk(KERN_DEBUG"%s:%i: %i", __func__, __LINE__,
urb->iso_frame_desc[0].actual_length);
for (pack = 1; pack < urb->number_of_packets; ++pack) {
int l = urb->iso_frame_desc[pack].actual_length;
printk(" %i", l);
}
printk("\n");
}
#endif
if (!empty && s->state < usb_stream_sync1)
++s->state;
if (balance_capture(sk, urb))
stream_start(sk, urb, sk->i_urb);
}
static void i_playback_start(struct urb *urb)
{
struct usb_stream_kernel *sk = urb->context;
if (balance_playback(sk, urb))
stream_start(sk, sk->i_urb, urb);
}
int usb_stream_start(struct usb_stream_kernel *sk)
{
struct usb_stream *s = sk->s;
int frame = 0, iters = 0;
int u, err;
int try = 0;
if (s->state != usb_stream_stopped)
return -EAGAIN;
subs_set_complete(sk->inurb, i_capture_start);
subs_set_complete(sk->outurb, i_playback_start);
memset(sk->write_page, 0, s->write_size);
dotry:
s->insize_done = 0;
s->idle_insize = 0;
s->idle_outsize = 0;
s->sync_packet = -1;
s->inpacket_head = -1;
sk->iso_frame_balance = 0;
++try;
for (u = 0; u < 2; u++) {
struct urb *inurb = sk->inurb[u];
struct urb *outurb = sk->outurb[u];
playback_prep_freqn(sk, outurb);
inurb->number_of_packets = outurb->number_of_packets;
inurb->transfer_buffer_length =
inurb->number_of_packets *
inurb->iso_frame_desc[0].length;
if (u == 0) {
int now;
struct usb_device *dev = inurb->dev;
frame = usb_get_current_frame_number(dev);
do {
now = usb_get_current_frame_number(dev);
++iters;
} while (now > -1 && now == frame);
}
err = usb_submit_urb(inurb, GFP_ATOMIC);
if (err < 0) {
snd_printk(KERN_ERR"usb_submit_urb(sk->inurb[%i])"
" returned %i\n", u, err);
return err;
}
err = usb_submit_urb(outurb, GFP_ATOMIC);
if (err < 0) {
snd_printk(KERN_ERR"usb_submit_urb(sk->outurb[%i])"
" returned %i\n", u, err);
return err;
}
if (inurb->start_frame != outurb->start_frame) {
snd_printd(KERN_DEBUG
"u[%i] start_frames differ in:%u out:%u\n",
u, inurb->start_frame, outurb->start_frame);
goto check_retry;
}
}
snd_printdd(KERN_DEBUG "%i %i\n", frame, iters);
try = 0;
check_retry:
if (try) {
usb_stream_stop(sk);
if (try < 5) {
msleep(1500);
snd_printd(KERN_DEBUG "goto dotry;\n");
goto dotry;
}
snd_printk(KERN_WARNING"couldn't start"
" all urbs on the same start_frame.\n");
return -EFAULT;
}
sk->idle_inurb = sk->inurb[USB_STREAM_NURBS - 2];
sk->idle_outurb = sk->outurb[USB_STREAM_NURBS - 2];
sk->completed_inurb = sk->inurb[USB_STREAM_NURBS - 1];
sk->completed_outurb = sk->outurb[USB_STREAM_NURBS - 1];
/* wait, check */
{
int wait_ms = 3000;
while (s->state != usb_stream_ready && wait_ms > 0) {
snd_printdd(KERN_DEBUG "%i\n", s->state);
msleep(200);
wait_ms -= 200;
}
}
return s->state == usb_stream_ready ? 0 : -EFAULT;
}
/* stop */
void usb_stream_stop(struct usb_stream_kernel *sk)
{
int u;
if (!sk->s)
return;
for (u = 0; u < USB_STREAM_NURBS; ++u) {
usb_kill_urb(sk->inurb[u]);
usb_kill_urb(sk->outurb[u]);
}
sk->s->state = usb_stream_stopped;
msleep(400);
}

112
sound/usb/usx2y/usb_stream.h Normal file
View file

@ -0,0 +1,112 @@
/*
* Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define USB_STREAM_INTERFACE_VERSION 2
#define SNDRV_USB_STREAM_IOCTL_SET_PARAMS \
_IOW('H', 0x90, struct usb_stream_config)
struct usb_stream_packet {
unsigned offset;
unsigned length;
};
struct usb_stream_config {
unsigned version;
unsigned sample_rate;
unsigned period_frames;
unsigned frame_size;
};
struct usb_stream {
struct usb_stream_config cfg;
unsigned read_size;
unsigned write_size;
int period_size;
unsigned state;
int idle_insize;
int idle_outsize;
int sync_packet;
unsigned insize_done;
unsigned periods_done;
unsigned periods_polled;
struct usb_stream_packet outpacket[2];
unsigned inpackets;
unsigned inpacket_head;
unsigned inpacket_split;
unsigned inpacket_split_at;
unsigned next_inpacket_split;
unsigned next_inpacket_split_at;
struct usb_stream_packet inpacket[0];
};
enum usb_stream_state {
usb_stream_invalid,
usb_stream_stopped,
usb_stream_sync0,
usb_stream_sync1,
usb_stream_ready,
usb_stream_running,
usb_stream_xrun,
};
#if __KERNEL__
#define USB_STREAM_NURBS 4
#define USB_STREAM_URBDEPTH 4
struct usb_stream_kernel {
struct usb_stream *s;
void *write_page;
unsigned n_o_ps;
struct urb *inurb[USB_STREAM_NURBS];
struct urb *idle_inurb;
struct urb *completed_inurb;
struct urb *outurb[USB_STREAM_NURBS];
struct urb *idle_outurb;
struct urb *completed_outurb;
struct urb *i_urb;
int iso_frame_balance;
wait_queue_head_t sleep;
unsigned out_phase;
unsigned out_phase_peeked;
unsigned freqn;
};
struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk,
struct usb_device *dev,
unsigned in_endpoint, unsigned out_endpoint,
unsigned sample_rate, unsigned use_packsize,
unsigned period_frames, unsigned frame_size);
void usb_stream_free(struct usb_stream_kernel *);
int usb_stream_start(struct usb_stream_kernel *);
void usb_stream_stop(struct usb_stream_kernel *);
#endif

104
sound/usb/usx2y/usbus428ctldefs.h Normal file
View file

@ -0,0 +1,104 @@
/*
*
* Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de>
*
* 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
*/
enum E_In84{
eFader0 = 0,
eFader1,
eFader2,
eFader3,
eFader4,
eFader5,
eFader6,
eFader7,
eFaderM,
eTransport,
eModifier = 10,
eFilterSelect,
eSelect,
eMute,
eSwitch = 15,
eWheelGain,
eWheelFreq,
eWheelQ,
eWheelPan,
eWheel = 20
};
#define T_RECORD 1
#define T_PLAY 2
#define T_STOP 4
#define T_F_FWD 8
#define T_REW 0x10
#define T_SOLO 0x20
#define T_REC 0x40
#define T_NULL 0x80
struct us428_ctls {
unsigned char Fader[9];
unsigned char Transport;
unsigned char Modifier;
unsigned char FilterSelect;
unsigned char Select;
unsigned char Mute;
unsigned char UNKNOWN;
unsigned char Switch;
unsigned char Wheel[5];
};
struct us428_setByte {
unsigned char Offset,
Value;
};
enum {
eLT_Volume = 0,
eLT_Light
};
struct usX2Y_volume {
unsigned char Channel,
LH,
LL,
RH,
RL;
};
struct us428_lights {
struct us428_setByte Light[7];
};
struct us428_p4out {
char type;
union {
struct usX2Y_volume vol;
struct us428_lights lights;
} val;
};
#define N_us428_ctl_BUFS 16
#define N_us428_p4out_BUFS 16
struct us428ctls_sharedmem{
struct us428_ctls CtlSnapShot[N_us428_ctl_BUFS];
int CtlSnapShotDiffersAt[N_us428_ctl_BUFS];
int CtlSnapShotLast, CtlSnapShotRed;
struct us428_p4out p4out[N_us428_p4out_BUFS];
int p4outLast, p4outSent;
};

461
sound/usb/usx2y/usbusx2y.c Normal file
View file

@ -0,0 +1,461 @@
/*
* usbusy2y.c - ALSA USB US-428 Driver
*
2005-04-14 Karsten Wiese
Version 0.8.7.2:
Call snd_card_free() instead of snd_card_free_in_thread() to prevent oops with dead keyboard symptom.
Tested ok with kernel 2.6.12-rc2.
2004-12-14 Karsten Wiese
Version 0.8.7.1:
snd_pcm_open for rawusb pcm-devices now returns -EBUSY if called without rawusb's hwdep device being open.
2004-12-02 Karsten Wiese
Version 0.8.7:
Use macro usb_maxpacket() for portability.
2004-10-26 Karsten Wiese
Version 0.8.6:
wake_up() process waiting in usX2Y_urbs_start() on error.
2004-10-21 Karsten Wiese
Version 0.8.5:
nrpacks is runtime or compiletime configurable now with tested values from 1 to 4.
2004-10-03 Karsten Wiese
Version 0.8.2:
Avoid any possible racing while in prepare callback.
2004-09-30 Karsten Wiese
Version 0.8.0:
Simplified things and made ohci work again.
2004-09-20 Karsten Wiese
Version 0.7.3:
Use usb_kill_urb() instead of deprecated (kernel 2.6.9) usb_unlink_urb().
2004-07-13 Karsten Wiese
Version 0.7.1:
Don't sleep in START/STOP callbacks anymore.
us428 channels C/D not handled just for this version, sorry.
2004-06-21 Karsten Wiese
Version 0.6.4:
Temporarely suspend midi input
to sanely call usb_set_interface() when setting format.
2004-06-12 Karsten Wiese
Version 0.6.3:
Made it thus the following rule is enforced:
"All pcm substreams of one usX2Y have to operate at the same rate & format."
2004-04-06 Karsten Wiese
Version 0.6.0:
Runs on 2.6.5 kernel without any "--with-debug=" things.
us224 reported running.
2004-01-14 Karsten Wiese
Version 0.5.1:
Runs with 2.6.1 kernel.
2003-12-30 Karsten Wiese
Version 0.4.1:
Fix 24Bit 4Channel capturing for the us428.
2003-11-27 Karsten Wiese, Martin Langer
Version 0.4:
us122 support.
us224 could be tested by uncommenting the sections containing USB_ID_US224
2003-11-03 Karsten Wiese
Version 0.3:
24Bit support.
"arecord -D hw:1 -c 2 -r 48000 -M -f S24_3LE|aplay -D hw:1 -c 2 -r 48000 -M -f S24_3LE" works.
2003-08-22 Karsten Wiese
Version 0.0.8:
Removed EZUSB Firmware. First Stage Firmwaredownload is now done by tascam-firmware downloader.
See:
http://usb-midi-fw.sourceforge.net/tascam-firmware.tar.gz
2003-06-18 Karsten Wiese
Version 0.0.5:
changed to compile with kernel 2.4.21 and alsa 0.9.4
2002-10-16 Karsten Wiese
Version 0.0.4:
compiles again with alsa-current.
USB_ISO_ASAP not used anymore (most of the time), instead
urb->start_frame is calculated here now, some calls inside usb-driver don't need to happen anymore.
To get the best out of this:
Disable APM-support in the kernel as APM-BIOS calls (once each second) hard disable interrupt for many precious milliseconds.
This helped me much on my slowish PII 400 & PIII 500.
ACPI yet untested but might cause the same bad behaviour.
Use a kernel with lowlatency and preemptiv patches applied.
To autoload snd-usb-midi append a line
post-install snd-usb-us428 modprobe snd-usb-midi
to /etc/modules.conf.
known problems:
sliders, knobs, lights not yet handled except MASTER Volume slider.
"pcm -c 2" doesn't work. "pcm -c 2 -m direct_interleaved" does.
KDE3: "Enable full duplex operation" deadlocks.
2002-08-31 Karsten Wiese
Version 0.0.3: audio also simplex;
simplifying: iso urbs only 1 packet, melted structs.
ASYNC_UNLINK not used anymore: no more crashes so far.....
for alsa 0.9 rc3.
2002-08-09 Karsten Wiese
Version 0.0.2: midi works with snd-usb-midi, audio (only fullduplex now) with i.e. bristol.
The firmware has been sniffed from win2k us-428 driver 3.09.
* Copyright (c) 2002 - 2004 Karsten Wiese
*
* 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/module.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/usb.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/rawmidi.h>
#include "usx2y.h"
#include "usbusx2y.h"
#include "usX2Yhwdep.h"
MODULE_AUTHOR("Karsten Wiese <annabellesgarden@yahoo.de>");
MODULE_DESCRIPTION("TASCAM "NAME_ALLCAPS" Version 0.8.7.2");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("{{TASCAM(0x1604),"NAME_ALLCAPS"(0x8001)(0x8005)(0x8007)}}");
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-max */
static char* id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* Id for this card */
static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; /* Enable this card */
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for "NAME_ALLCAPS".");
module_param_array(id, charp, NULL, 0444);
MODULE_PARM_DESC(id, "ID string for "NAME_ALLCAPS".");
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable "NAME_ALLCAPS".");
static int snd_usX2Y_card_used[SNDRV_CARDS];
static void usX2Y_usb_disconnect(struct usb_device* usb_device, void* ptr);
static void snd_usX2Y_card_private_free(struct snd_card *card);
/*
* pipe 4 is used for switching the lamps, setting samplerate, volumes ....
*/
static void i_usX2Y_Out04Int(struct urb *urb)
{
#ifdef CONFIG_SND_DEBUG
if (urb->status) {
int i;
struct usX2Ydev *usX2Y = urb->context;
for (i = 0; i < 10 && usX2Y->AS04.urb[i] != urb; i++);
snd_printdd("i_usX2Y_Out04Int() urb %i status=%i\n", i, urb->status);
}
#endif
}
static void i_usX2Y_In04Int(struct urb *urb)
{
int err = 0;
struct usX2Ydev *usX2Y = urb->context;
struct us428ctls_sharedmem *us428ctls = usX2Y->us428ctls_sharedmem;
usX2Y->In04IntCalls++;
if (urb->status) {
snd_printdd("Interrupt Pipe 4 came back with status=%i\n", urb->status);
return;
}
// printk("%i:0x%02X ", 8, (int)((unsigned char*)usX2Y->In04Buf)[8]); Master volume shows 0 here if fader is at max during boot ?!?
if (us428ctls) {
int diff = -1;
if (-2 == us428ctls->CtlSnapShotLast) {
diff = 0;
memcpy(usX2Y->In04Last, usX2Y->In04Buf, sizeof(usX2Y->In04Last));
us428ctls->CtlSnapShotLast = -1;
} else {
int i;
for (i = 0; i < 21; i++) {
if (usX2Y->In04Last[i] != ((char*)usX2Y->In04Buf)[i]) {
if (diff < 0)
diff = i;
usX2Y->In04Last[i] = ((char*)usX2Y->In04Buf)[i];
}
}
}
if (0 <= diff) {
int n = us428ctls->CtlSnapShotLast + 1;
if (n >= N_us428_ctl_BUFS || n < 0)
n = 0;
memcpy(us428ctls->CtlSnapShot + n, usX2Y->In04Buf, sizeof(us428ctls->CtlSnapShot[0]));
us428ctls->CtlSnapShotDiffersAt[n] = diff;
us428ctls->CtlSnapShotLast = n;
wake_up(&usX2Y->us428ctls_wait_queue_head);
}
}
if (usX2Y->US04) {
if (0 == usX2Y->US04->submitted)
do {
err = usb_submit_urb(usX2Y->US04->urb[usX2Y->US04->submitted++], GFP_ATOMIC);
} while (!err && usX2Y->US04->submitted < usX2Y->US04->len);
} else
if (us428ctls && us428ctls->p4outLast >= 0 && us428ctls->p4outLast < N_us428_p4out_BUFS) {
if (us428ctls->p4outLast != us428ctls->p4outSent) {
int j, send = us428ctls->p4outSent + 1;
if (send >= N_us428_p4out_BUFS)
send = 0;
for (j = 0; j < URBS_AsyncSeq && !err; ++j)
if (0 == usX2Y->AS04.urb[j]->status) {
struct us428_p4out *p4out = us428ctls->p4out + send; // FIXME if more than 1 p4out is new, 1 gets lost.
usb_fill_bulk_urb(usX2Y->AS04.urb[j], usX2Y->dev,
usb_sndbulkpipe(usX2Y->dev, 0x04), &p4out->val.vol,
p4out->type == eLT_Light ? sizeof(struct us428_lights) : 5,
i_usX2Y_Out04Int, usX2Y);
err = usb_submit_urb(usX2Y->AS04.urb[j], GFP_ATOMIC);
us428ctls->p4outSent = send;
break;
}
}
}
if (err)
snd_printk(KERN_ERR "In04Int() usb_submit_urb err=%i\n", err);
urb->dev = usX2Y->dev;
usb_submit_urb(urb, GFP_ATOMIC);
}
/*
* Prepare some urbs
*/
int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y)
{
int err = 0,
i;
if (NULL == (usX2Y->AS04.buffer = kmalloc(URB_DataLen_AsyncSeq*URBS_AsyncSeq, GFP_KERNEL))) {
err = -ENOMEM;
} else
for (i = 0; i < URBS_AsyncSeq; ++i) {
if (NULL == (usX2Y->AS04.urb[i] = usb_alloc_urb(0, GFP_KERNEL))) {
err = -ENOMEM;
break;
}
usb_fill_bulk_urb( usX2Y->AS04.urb[i], usX2Y->dev,
usb_sndbulkpipe(usX2Y->dev, 0x04),
usX2Y->AS04.buffer + URB_DataLen_AsyncSeq*i, 0,
i_usX2Y_Out04Int, usX2Y
);
}
return err;
}
int usX2Y_In04_init(struct usX2Ydev *usX2Y)
{
if (! (usX2Y->In04urb = usb_alloc_urb(0, GFP_KERNEL)))
return -ENOMEM;
if (! (usX2Y->In04Buf = kmalloc(21, GFP_KERNEL))) {
usb_free_urb(usX2Y->In04urb);
return -ENOMEM;
}
init_waitqueue_head(&usX2Y->In04WaitQueue);
usb_fill_int_urb(usX2Y->In04urb, usX2Y->dev, usb_rcvintpipe(usX2Y->dev, 0x4),
usX2Y->In04Buf, 21,
i_usX2Y_In04Int, usX2Y,
10);
return usb_submit_urb(usX2Y->In04urb, GFP_KERNEL);
}
static void usX2Y_unlinkSeq(struct snd_usX2Y_AsyncSeq *S)
{
int i;
for (i = 0; i < URBS_AsyncSeq; ++i) {
usb_kill_urb(S->urb[i]);
usb_free_urb(S->urb[i]);
S->urb[i] = NULL;
}
kfree(S->buffer);
}
static struct usb_device_id snd_usX2Y_usb_id_table[] = {
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = 0x1604,
.idProduct = USB_ID_US428
},
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = 0x1604,
.idProduct = USB_ID_US122
},
{
.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
.idVendor = 0x1604,
.idProduct = USB_ID_US224
},
{ /* terminator */ }
};
static int usX2Y_create_card(struct usb_device *device,
struct usb_interface *intf,
struct snd_card **cardp)
{
int dev;
struct snd_card * card;
int err;
for (dev = 0; dev < SNDRV_CARDS; ++dev)
if (enable[dev] && !snd_usX2Y_card_used[dev])
break;
if (dev >= SNDRV_CARDS)
return -ENODEV;
err = snd_card_new(&intf->dev, index[dev], id[dev], THIS_MODULE,
sizeof(struct usX2Ydev), &card);
if (err < 0)
return err;
snd_usX2Y_card_used[usX2Y(card)->card_index = dev] = 1;
card->private_free = snd_usX2Y_card_private_free;
usX2Y(card)->dev = device;
init_waitqueue_head(&usX2Y(card)->prepare_wait_queue);
mutex_init(&usX2Y(card)->pcm_mutex);
INIT_LIST_HEAD(&usX2Y(card)->midi_list);
strcpy(card->driver, "USB "NAME_ALLCAPS"");
sprintf(card->shortname, "TASCAM "NAME_ALLCAPS"");
sprintf(card->longname, "%s (%x:%x if %d at %03d/%03d)",
card->shortname,
le16_to_cpu(device->descriptor.idVendor),
le16_to_cpu(device->descriptor.idProduct),
0,//us428(card)->usbmidi.ifnum,
usX2Y(card)->dev->bus->busnum, usX2Y(card)->dev->devnum
);
*cardp = card;
return 0;
}
static int usX2Y_usb_probe(struct usb_device *device,
struct usb_interface *intf,
const struct usb_device_id *device_id,
struct snd_card **cardp)
{
int err;
struct snd_card * card;
*cardp = NULL;
if (le16_to_cpu(device->descriptor.idVendor) != 0x1604 ||
(le16_to_cpu(device->descriptor.idProduct) != USB_ID_US122 &&
le16_to_cpu(device->descriptor.idProduct) != USB_ID_US224 &&
le16_to_cpu(device->descriptor.idProduct) != USB_ID_US428))
return -EINVAL;
err = usX2Y_create_card(device, intf, &card);
if (err < 0)
return err;
if ((err = usX2Y_hwdep_new(card, device)) < 0 ||
(err = snd_card_register(card)) < 0) {
snd_card_free(card);
return err;
}
*cardp = card;
return 0;
}
/*
* new 2.5 USB kernel API
*/
static int snd_usX2Y_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct snd_card *card;
int err;
err = usX2Y_usb_probe(interface_to_usbdev(intf), intf, id, &card);
if (err < 0)
return err;
dev_set_drvdata(&intf->dev, card);
return 0;
}
static void snd_usX2Y_disconnect(struct usb_interface *intf)
{
usX2Y_usb_disconnect(interface_to_usbdev(intf),
usb_get_intfdata(intf));
}
MODULE_DEVICE_TABLE(usb, snd_usX2Y_usb_id_table);
static struct usb_driver snd_usX2Y_usb_driver = {
.name = "snd-usb-usx2y",
.probe = snd_usX2Y_probe,
.disconnect = snd_usX2Y_disconnect,
.id_table = snd_usX2Y_usb_id_table,
};
static void snd_usX2Y_card_private_free(struct snd_card *card)
{
kfree(usX2Y(card)->In04Buf);
usb_free_urb(usX2Y(card)->In04urb);
if (usX2Y(card)->us428ctls_sharedmem)
snd_free_pages(usX2Y(card)->us428ctls_sharedmem, sizeof(*usX2Y(card)->us428ctls_sharedmem));
if (usX2Y(card)->card_index >= 0 && usX2Y(card)->card_index < SNDRV_CARDS)
snd_usX2Y_card_used[usX2Y(card)->card_index] = 0;
}
/*
* Frees the device.
*/
static void usX2Y_usb_disconnect(struct usb_device *device, void* ptr)
{
if (ptr) {
struct snd_card *card = ptr;
struct usX2Ydev *usX2Y = usX2Y(card);
struct list_head *p;
usX2Y->chip_status = USX2Y_STAT_CHIP_HUP;
usX2Y_unlinkSeq(&usX2Y->AS04);
usb_kill_urb(usX2Y->In04urb);
snd_card_disconnect(card);
/* release the midi resources */
list_for_each(p, &usX2Y->midi_list) {
snd_usbmidi_disconnect(p);
}
if (usX2Y->us428ctls_sharedmem)
wake_up(&usX2Y->us428ctls_wait_queue_head);
snd_card_free(card);
}
}
module_usb_driver(snd_usX2Y_usb_driver);

88
sound/usb/usx2y/usbusx2y.h Normal file
View file

@ -0,0 +1,88 @@
#ifndef USBUSX2Y_H
#define USBUSX2Y_H
#include "../usbaudio.h"
#include "../midi.h"
#include "usbus428ctldefs.h"
#define NRURBS 2
#define URBS_AsyncSeq 10
#define URB_DataLen_AsyncSeq 32
struct snd_usX2Y_AsyncSeq {
struct urb *urb[URBS_AsyncSeq];
char *buffer;
};
struct snd_usX2Y_urbSeq {
int submitted;
int len;
struct urb *urb[0];
};
#include "usx2yhwdeppcm.h"
struct usX2Ydev {
struct usb_device *dev;
int card_index;
int stride;
struct urb *In04urb;
void *In04Buf;
char In04Last[24];
unsigned In04IntCalls;
struct snd_usX2Y_urbSeq *US04;
wait_queue_head_t In04WaitQueue;
struct snd_usX2Y_AsyncSeq AS04;
unsigned int rate,
format;
int chip_status;
struct mutex pcm_mutex;
struct us428ctls_sharedmem *us428ctls_sharedmem;
int wait_iso_frame;
wait_queue_head_t us428ctls_wait_queue_head;
struct snd_usX2Y_hwdep_pcm_shm *hwdep_pcm_shm;
struct snd_usX2Y_substream *subs[4];
struct snd_usX2Y_substream * volatile prepare_subs;
wait_queue_head_t prepare_wait_queue;
struct list_head midi_list;
struct list_head pcm_list;
int pcm_devs;
};
struct snd_usX2Y_substream {
struct usX2Ydev *usX2Y;
struct snd_pcm_substream *pcm_substream;
int endpoint;
unsigned int maxpacksize; /* max packet size in bytes */
atomic_t state;
#define state_STOPPED 0
#define state_STARTING1 1
#define state_STARTING2 2
#define state_STARTING3 3
#define state_PREPARED 4
#define state_PRERUNNING 6
#define state_RUNNING 8
int hwptr; /* free frame position in the buffer (only for playback) */
int hwptr_done; /* processed frame position in the buffer */
int transfer_done; /* processed frames since last period update */
struct urb *urb[NRURBS]; /* data urb table */
struct urb *completed_urb;
char *tmpbuf; /* temporary buffer for playback */
};
#define usX2Y(c) ((struct usX2Ydev *)(c)->private_data)
int usX2Y_audio_create(struct snd_card *card);
int usX2Y_AsyncSeq04_init(struct usX2Ydev *usX2Y);
int usX2Y_In04_init(struct usX2Ydev *usX2Y);
#define NAME_ALLCAPS "US-X2Y"
#endif

1020
sound/usb/usx2y/usbusx2yaudio.c Normal file
View file

File diff suppressed because it is too large Load diff

51
sound/usb/usx2y/usx2y.h Normal file
View file

@ -0,0 +1,51 @@
/*
* Driver for Tascam US-X2Y USB soundcards
*
* Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de>
*
* 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
*/
#ifndef __SOUND_USX2Y_COMMON_H
#define __SOUND_USX2Y_COMMON_H
#define USX2Y_DRIVER_VERSION 0x0100 /* 0.1.0 */
/* hwdep id string */
#define SND_USX2Y_LOADER_ID "USX2Y Loader"
#define SND_USX2Y_USBPCM_ID "USX2Y USBPCM"
/* hardware type */
enum {
USX2Y_TYPE_122,
USX2Y_TYPE_224,
USX2Y_TYPE_428,
USX2Y_TYPE_NUMS
};
#define USB_ID_US122 0x8007
#define USB_ID_US224 0x8005
#define USB_ID_US428 0x8001
/* chip status */
enum {
USX2Y_STAT_CHIP_INIT = (1 << 0), /* all operational */
USX2Y_STAT_CHIP_MMAP_PCM_URBS = (1 << 1), /* pcm transport over mmaped urbs */
USX2Y_STAT_CHIP_HUP = (1 << 31), /* all operational */
};
#endif /* __SOUND_USX2Y_COMMON_H */

762
sound/usb/usx2y/usx2yhwdeppcm.c Normal file
View file

@ -0,0 +1,762 @@
/*
* 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
*/
/* USX2Y "rawusb" aka hwdep_pcm implementation
Its usb's unableness to atomically handle power of 2 period sized data chuncs
at standard samplerates,
what led to this part of the usx2y module:
It provides the alsa kernel half of the usx2y-alsa-jack driver pair.
The pair uses a hardware dependent alsa-device for mmaped pcm transport.
Advantage achieved:
The usb_hc moves pcm data from/into memory via DMA.
That memory is mmaped by jack's usx2y driver.
Jack's usx2y driver is the first/last to read/write pcm data.
Read/write is a combination of power of 2 period shaping and
float/int conversation.
Compared to mainline alsa/jack we leave out power of 2 period shaping inside
snd-usb-usx2y which needs memcpy() and additional buffers.
As a side effect possible unwanted pcm-data coruption resulting of
standard alsa's snd-usb-usx2y period shaping scheme falls away.
Result is sane jack operation at buffering schemes down to 128frames,
2 periods.
plain usx2y alsa mode is able to achieve 64frames, 4periods, but only at the
cost of easier triggered i.e. aeolus xruns (128 or 256frames,
2periods works but is useless cause of crackling).
This is a first "proof of concept" implementation.
Later, functionalities should migrate to more appropriate places:
Userland:
- The jackd could mmap its float-pcm buffers directly from alsa-lib.
- alsa-lib could provide power of 2 period sized shaping combined with int/float
conversation.
Currently the usx2y jack driver provides above 2 services.
Kernel:
- rawusb dma pcm buffer transport should go to snd-usb-lib, so also snd-usb-audio
devices can use it.
Currently rawusb dma pcm buffer transport (this file) is only available to snd-usb-usx2y.
*/
#include <linux/delay.h>
#include <linux/gfp.h>
#include "usbusx2yaudio.c"
#if defined(USX2Y_NRPACKS_VARIABLE) || USX2Y_NRPACKS == 1
#include <sound/hwdep.h>
static int usX2Y_usbpcm_urb_capt_retire(struct snd_usX2Y_substream *subs)
{
struct urb *urb = subs->completed_urb;
struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime;
int i, lens = 0, hwptr_done = subs->hwptr_done;
struct usX2Ydev *usX2Y = subs->usX2Y;
if (0 > usX2Y->hwdep_pcm_shm->capture_iso_start) { //FIXME
int head = usX2Y->hwdep_pcm_shm->captured_iso_head + 1;
if (head >= ARRAY_SIZE(usX2Y->hwdep_pcm_shm->captured_iso))
head = 0;
usX2Y->hwdep_pcm_shm->capture_iso_start = head;
snd_printdd("cap start %i\n", head);
}
for (i = 0; i < nr_of_packs(); i++) {
if (urb->iso_frame_desc[i].status) { /* active? hmm, skip this */
snd_printk(KERN_ERR "active frame status %i. Most probably some hardware problem.\n", urb->iso_frame_desc[i].status);
return urb->iso_frame_desc[i].status;
}
lens += urb->iso_frame_desc[i].actual_length / usX2Y->stride;
}
if ((hwptr_done += lens) >= runtime->buffer_size)
hwptr_done -= runtime->buffer_size;
subs->hwptr_done = hwptr_done;
subs->transfer_done += lens;
/* update the pointer, call callback if necessary */
if (subs->transfer_done >= runtime->period_size) {
subs->transfer_done -= runtime->period_size;
snd_pcm_period_elapsed(subs->pcm_substream);
}
return 0;
}
static inline int usX2Y_iso_frames_per_buffer(struct snd_pcm_runtime *runtime,
struct usX2Ydev * usX2Y)
{
return (runtime->buffer_size * 1000) / usX2Y->rate + 1; //FIXME: so far only correct period_size == 2^x ?
}
/*
* prepare urb for playback data pipe
*
* we copy the data directly from the pcm buffer.
* the current position to be copied is held in hwptr field.
* since a urb can handle only a single linear buffer, if the total
* transferred area overflows the buffer boundary, we cannot send
* it directly from the buffer. thus the data is once copied to
* a temporary buffer and urb points to that.
*/
static int usX2Y_hwdep_urb_play_prepare(struct snd_usX2Y_substream *subs,
struct urb *urb)
{
int count, counts, pack;
struct usX2Ydev *usX2Y = subs->usX2Y;
struct snd_usX2Y_hwdep_pcm_shm *shm = usX2Y->hwdep_pcm_shm;
struct snd_pcm_runtime *runtime = subs->pcm_substream->runtime;
if (0 > shm->playback_iso_start) {
shm->playback_iso_start = shm->captured_iso_head -
usX2Y_iso_frames_per_buffer(runtime, usX2Y);
if (0 > shm->playback_iso_start)
shm->playback_iso_start += ARRAY_SIZE(shm->captured_iso);
shm->playback_iso_head = shm->playback_iso_start;
}
count = 0;
for (pack = 0; pack < nr_of_packs(); pack++) {
/* calculate the size of a packet */
counts = shm->captured_iso[shm->playback_iso_head].length / usX2Y->stride;
if (counts < 43 || counts > 50) {
snd_printk(KERN_ERR "should not be here with counts=%i\n", counts);
return -EPIPE;
}
/* set up descriptor */
urb->iso_frame_desc[pack].offset = shm->captured_iso[shm->playback_iso_head].offset;
urb->iso_frame_desc[pack].length = shm->captured_iso[shm->playback_iso_head].length;
if (atomic_read(&subs->state) != state_RUNNING)
memset((char *)urb->transfer_buffer + urb->iso_frame_desc[pack].offset, 0,
urb->iso_frame_desc[pack].length);
if (++shm->playback_iso_head >= ARRAY_SIZE(shm->captured_iso))
shm->playback_iso_head = 0;
count += counts;
}
urb->transfer_buffer_length = count * usX2Y->stride;
return 0;
}
static inline void usX2Y_usbpcm_urb_capt_iso_advance(struct snd_usX2Y_substream *subs,
struct urb *urb)
{
int pack;
for (pack = 0; pack < nr_of_packs(); ++pack) {
struct usb_iso_packet_descriptor *desc = urb->iso_frame_desc + pack;
if (NULL != subs) {
struct snd_usX2Y_hwdep_pcm_shm *shm = subs->usX2Y->hwdep_pcm_shm;
int head = shm->captured_iso_head + 1;
if (head >= ARRAY_SIZE(shm->captured_iso))
head = 0;
shm->captured_iso[head].frame = urb->start_frame + pack;
shm->captured_iso[head].offset = desc->offset;
shm->captured_iso[head].length = desc->actual_length;
shm->captured_iso_head = head;
shm->captured_iso_frames++;
}
if ((desc->offset += desc->length * NRURBS*nr_of_packs()) +
desc->length >= SSS)
desc->offset -= (SSS - desc->length);
}
}
static inline int usX2Y_usbpcm_usbframe_complete(struct snd_usX2Y_substream *capsubs,
struct snd_usX2Y_substream *capsubs2,
struct snd_usX2Y_substream *playbacksubs,
int frame)
{
int err, state;
struct urb *urb = playbacksubs->completed_urb;
state = atomic_read(&playbacksubs->state);
if (NULL != urb) {
if (state == state_RUNNING)
usX2Y_urb_play_retire(playbacksubs, urb);
else if (state >= state_PRERUNNING)
atomic_inc(&playbacksubs->state);
} else {
switch (state) {
case state_STARTING1:
urb = playbacksubs->urb[0];
atomic_inc(&playbacksubs->state);
break;
case state_STARTING2:
urb = playbacksubs->urb[1];
atomic_inc(&playbacksubs->state);
break;
}
}
if (urb) {
if ((err = usX2Y_hwdep_urb_play_prepare(playbacksubs, urb)) ||
(err = usX2Y_urb_submit(playbacksubs, urb, frame))) {
return err;
}
}
playbacksubs->completed_urb = NULL;
state = atomic_read(&capsubs->state);
if (state >= state_PREPARED) {
if (state == state_RUNNING) {
if ((err = usX2Y_usbpcm_urb_capt_retire(capsubs)))
return err;
} else if (state >= state_PRERUNNING)
atomic_inc(&capsubs->state);
usX2Y_usbpcm_urb_capt_iso_advance(capsubs, capsubs->completed_urb);
if (NULL != capsubs2)
usX2Y_usbpcm_urb_capt_iso_advance(NULL, capsubs2->completed_urb);
if ((err = usX2Y_urb_submit(capsubs, capsubs->completed_urb, frame)))
return err;
if (NULL != capsubs2)
if ((err = usX2Y_urb_submit(capsubs2, capsubs2->completed_urb, frame)))
return err;
}
capsubs->completed_urb = NULL;
if (NULL != capsubs2)
capsubs2->completed_urb = NULL;
return 0;
}
static void i_usX2Y_usbpcm_urb_complete(struct urb *urb)
{
struct snd_usX2Y_substream *subs = urb->context;
struct usX2Ydev *usX2Y = subs->usX2Y;
struct snd_usX2Y_substream *capsubs, *capsubs2, *playbacksubs;
if (unlikely(atomic_read(&subs->state) < state_PREPARED)) {
snd_printdd("hcd_frame=%i ep=%i%s status=%i start_frame=%i\n",
usb_get_current_frame_number(usX2Y->dev),
subs->endpoint, usb_pipein(urb->pipe) ? "in" : "out",
urb->status, urb->start_frame);
return;
}
if (unlikely(urb->status)) {
usX2Y_error_urb_status(usX2Y, subs, urb);
return;
}
subs->completed_urb = urb;
capsubs = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
capsubs2 = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE + 2];
playbacksubs = usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
if (capsubs->completed_urb && atomic_read(&capsubs->state) >= state_PREPARED &&
(NULL == capsubs2 || capsubs2->completed_urb) &&
(playbacksubs->completed_urb || atomic_read(&playbacksubs->state) < state_PREPARED)) {
if (!usX2Y_usbpcm_usbframe_complete(capsubs, capsubs2, playbacksubs, urb->start_frame))
usX2Y->wait_iso_frame += nr_of_packs();
else {
snd_printdd("\n");
usX2Y_clients_stop(usX2Y);
}
}
}
static void usX2Y_hwdep_urb_release(struct urb **urb)
{
usb_kill_urb(*urb);
usb_free_urb(*urb);
*urb = NULL;
}
/*
* release a substream
*/
static void usX2Y_usbpcm_urbs_release(struct snd_usX2Y_substream *subs)
{
int i;
snd_printdd("snd_usX2Y_urbs_release() %i\n", subs->endpoint);
for (i = 0; i < NRURBS; i++)
usX2Y_hwdep_urb_release(subs->urb + i);
}
static void usX2Y_usbpcm_subs_startup_finish(struct usX2Ydev * usX2Y)
{
usX2Y_urbs_set_complete(usX2Y, i_usX2Y_usbpcm_urb_complete);
usX2Y->prepare_subs = NULL;
}
static void i_usX2Y_usbpcm_subs_startup(struct urb *urb)
{
struct snd_usX2Y_substream *subs = urb->context;
struct usX2Ydev *usX2Y = subs->usX2Y;
struct snd_usX2Y_substream *prepare_subs = usX2Y->prepare_subs;
if (NULL != prepare_subs &&
urb->start_frame == prepare_subs->urb[0]->start_frame) {
atomic_inc(&prepare_subs->state);
if (prepare_subs == usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE]) {
struct snd_usX2Y_substream *cap_subs2 = usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE + 2];
if (cap_subs2 != NULL)
atomic_inc(&cap_subs2->state);
}
usX2Y_usbpcm_subs_startup_finish(usX2Y);
wake_up(&usX2Y->prepare_wait_queue);
}
i_usX2Y_usbpcm_urb_complete(urb);
}
/*
* initialize a substream's urbs
*/
static int usX2Y_usbpcm_urbs_allocate(struct snd_usX2Y_substream *subs)
{
int i;
unsigned int pipe;
int is_playback = subs == subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
struct usb_device *dev = subs->usX2Y->dev;
pipe = is_playback ? usb_sndisocpipe(dev, subs->endpoint) :
usb_rcvisocpipe(dev, subs->endpoint);
subs->maxpacksize = usb_maxpacket(dev, pipe, is_playback);
if (!subs->maxpacksize)
return -EINVAL;
/* allocate and initialize data urbs */
for (i = 0; i < NRURBS; i++) {
struct urb **purb = subs->urb + i;
if (*purb) {
usb_kill_urb(*purb);
continue;
}
*purb = usb_alloc_urb(nr_of_packs(), GFP_KERNEL);
if (NULL == *purb) {
usX2Y_usbpcm_urbs_release(subs);
return -ENOMEM;
}
(*purb)->transfer_buffer = is_playback ?
subs->usX2Y->hwdep_pcm_shm->playback : (
subs->endpoint == 0x8 ?
subs->usX2Y->hwdep_pcm_shm->capture0x8 :
subs->usX2Y->hwdep_pcm_shm->capture0xA);
(*purb)->dev = dev;
(*purb)->pipe = pipe;
(*purb)->number_of_packets = nr_of_packs();
(*purb)->context = subs;
(*purb)->interval = 1;
(*purb)->complete = i_usX2Y_usbpcm_subs_startup;
}
return 0;
}
/*
* free the buffer
*/
static int snd_usX2Y_usbpcm_hw_free(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_usX2Y_substream *subs = runtime->private_data,
*cap_subs2 = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE + 2];
mutex_lock(&subs->usX2Y->pcm_mutex);
snd_printdd("snd_usX2Y_usbpcm_hw_free(%p)\n", substream);
if (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) {
struct snd_usX2Y_substream *cap_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
atomic_set(&subs->state, state_STOPPED);
usX2Y_usbpcm_urbs_release(subs);
if (!cap_subs->pcm_substream ||
!cap_subs->pcm_substream->runtime ||
!cap_subs->pcm_substream->runtime->status ||
cap_subs->pcm_substream->runtime->status->state < SNDRV_PCM_STATE_PREPARED) {
atomic_set(&cap_subs->state, state_STOPPED);
if (NULL != cap_subs2)
atomic_set(&cap_subs2->state, state_STOPPED);
usX2Y_usbpcm_urbs_release(cap_subs);
if (NULL != cap_subs2)
usX2Y_usbpcm_urbs_release(cap_subs2);
}
} else {
struct snd_usX2Y_substream *playback_subs = subs->usX2Y->subs[SNDRV_PCM_STREAM_PLAYBACK];
if (atomic_read(&playback_subs->state) < state_PREPARED) {
atomic_set(&subs->state, state_STOPPED);
if (NULL != cap_subs2)
atomic_set(&cap_subs2->state, state_STOPPED);
usX2Y_usbpcm_urbs_release(subs);
if (NULL != cap_subs2)
usX2Y_usbpcm_urbs_release(cap_subs2);
}
}
mutex_unlock(&subs->usX2Y->pcm_mutex);
return snd_pcm_lib_free_pages(substream);
}
static void usX2Y_usbpcm_subs_startup(struct snd_usX2Y_substream *subs)
{
struct usX2Ydev * usX2Y = subs->usX2Y;
usX2Y->prepare_subs = subs;
subs->urb[0]->start_frame = -1;
smp_wmb(); // Make sure above modifications are seen by i_usX2Y_subs_startup()
usX2Y_urbs_set_complete(usX2Y, i_usX2Y_usbpcm_subs_startup);
}
static int usX2Y_usbpcm_urbs_start(struct snd_usX2Y_substream *subs)
{
int p, u, err,
stream = subs->pcm_substream->stream;
struct usX2Ydev *usX2Y = subs->usX2Y;
if (SNDRV_PCM_STREAM_CAPTURE == stream) {
usX2Y->hwdep_pcm_shm->captured_iso_head = -1;
usX2Y->hwdep_pcm_shm->captured_iso_frames = 0;
}
for (p = 0; 3 >= (stream + p); p += 2) {
struct snd_usX2Y_substream *subs = usX2Y->subs[stream + p];
if (subs != NULL) {
if ((err = usX2Y_usbpcm_urbs_allocate(subs)) < 0)
return err;
subs->completed_urb = NULL;
}
}
for (p = 0; p < 4; p++) {
struct snd_usX2Y_substream *subs = usX2Y->subs[p];
if (subs != NULL && atomic_read(&subs->state) >= state_PREPARED)
goto start;
}
start:
usX2Y_usbpcm_subs_startup(subs);
for (u = 0; u < NRURBS; u++) {
for (p = 0; 3 >= (stream + p); p += 2) {
struct snd_usX2Y_substream *subs = usX2Y->subs[stream + p];
if (subs != NULL) {
struct urb *urb = subs->urb[u];
if (usb_pipein(urb->pipe)) {
unsigned long pack;
if (0 == u)
atomic_set(&subs->state, state_STARTING3);
urb->dev = usX2Y->dev;
for (pack = 0; pack < nr_of_packs(); pack++) {
urb->iso_frame_desc[pack].offset = subs->maxpacksize * (pack + u * nr_of_packs());
urb->iso_frame_desc[pack].length = subs->maxpacksize;
}
urb->transfer_buffer_length = subs->maxpacksize * nr_of_packs();
if ((err = usb_submit_urb(urb, GFP_KERNEL)) < 0) {
snd_printk (KERN_ERR "cannot usb_submit_urb() for urb %d, err = %d\n", u, err);
err = -EPIPE;
goto cleanup;
} else {
snd_printdd("%i\n", urb->start_frame);
if (u == 0)
usX2Y->wait_iso_frame = urb->start_frame;
}
urb->transfer_flags = 0;
} else {
atomic_set(&subs->state, state_STARTING1);
break;
}
}
}
}
err = 0;
wait_event(usX2Y->prepare_wait_queue, NULL == usX2Y->prepare_subs);
if (atomic_read(&subs->state) != state_PREPARED)
err = -EPIPE;
cleanup:
if (err) {
usX2Y_subs_startup_finish(usX2Y); // Call it now
usX2Y_clients_stop(usX2Y); // something is completely wroong > stop evrything
}
return err;
}
/*
* prepare callback
*
* set format and initialize urbs
*/
static int snd_usX2Y_usbpcm_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_usX2Y_substream *subs = runtime->private_data;
struct usX2Ydev *usX2Y = subs->usX2Y;
struct snd_usX2Y_substream *capsubs = subs->usX2Y->subs[SNDRV_PCM_STREAM_CAPTURE];
int err = 0;
snd_printdd("snd_usX2Y_pcm_prepare(%p)\n", substream);
if (NULL == usX2Y->hwdep_pcm_shm) {
if (NULL == (usX2Y->hwdep_pcm_shm = snd_malloc_pages(sizeof(struct snd_usX2Y_hwdep_pcm_shm), GFP_KERNEL)))
return -ENOMEM;
memset(usX2Y->hwdep_pcm_shm, 0, sizeof(struct snd_usX2Y_hwdep_pcm_shm));
}
mutex_lock(&usX2Y->pcm_mutex);
usX2Y_subs_prepare(subs);
// Start hardware streams
// SyncStream first....
if (atomic_read(&capsubs->state) < state_PREPARED) {
if (usX2Y->format != runtime->format)
if ((err = usX2Y_format_set(usX2Y, runtime->format)) < 0)
goto up_prepare_mutex;
if (usX2Y->rate != runtime->rate)
if ((err = usX2Y_rate_set(usX2Y, runtime->rate)) < 0)
goto up_prepare_mutex;
snd_printdd("starting capture pipe for %s\n", subs == capsubs ?
"self" : "playpipe");
if (0 > (err = usX2Y_usbpcm_urbs_start(capsubs)))
goto up_prepare_mutex;
}
if (subs != capsubs) {
usX2Y->hwdep_pcm_shm->playback_iso_start = -1;
if (atomic_read(&subs->state) < state_PREPARED) {
while (usX2Y_iso_frames_per_buffer(runtime, usX2Y) >
usX2Y->hwdep_pcm_shm->captured_iso_frames) {
snd_printdd("Wait: iso_frames_per_buffer=%i,"
"captured_iso_frames=%i\n",
usX2Y_iso_frames_per_buffer(runtime, usX2Y),
usX2Y->hwdep_pcm_shm->captured_iso_frames);
if (msleep_interruptible(10)) {
err = -ERESTARTSYS;
goto up_prepare_mutex;
}
}
if (0 > (err = usX2Y_usbpcm_urbs_start(subs)))
goto up_prepare_mutex;
}
snd_printdd("Ready: iso_frames_per_buffer=%i,captured_iso_frames=%i\n",
usX2Y_iso_frames_per_buffer(runtime, usX2Y),
usX2Y->hwdep_pcm_shm->captured_iso_frames);
} else
usX2Y->hwdep_pcm_shm->capture_iso_start = -1;
up_prepare_mutex:
mutex_unlock(&usX2Y->pcm_mutex);
return err;
}
static struct snd_pcm_hardware snd_usX2Y_4c =
{
.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID),
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE,
.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
.rate_min = 44100,
.rate_max = 48000,
.channels_min = 2,
.channels_max = 4,
.buffer_bytes_max = (2*128*1024),
.period_bytes_min = 64,
.period_bytes_max = (128*1024),
.periods_min = 2,
.periods_max = 1024,
.fifo_size = 0
};
static int snd_usX2Y_usbpcm_open(struct snd_pcm_substream *substream)
{
struct snd_usX2Y_substream *subs = ((struct snd_usX2Y_substream **)
snd_pcm_substream_chip(substream))[substream->stream];
struct snd_pcm_runtime *runtime = substream->runtime;
if (!(subs->usX2Y->chip_status & USX2Y_STAT_CHIP_MMAP_PCM_URBS))
return -EBUSY;
runtime->hw = SNDRV_PCM_STREAM_PLAYBACK == substream->stream ? snd_usX2Y_2c :
(subs->usX2Y->subs[3] ? snd_usX2Y_4c : snd_usX2Y_2c);
runtime->private_data = subs;
subs->pcm_substream = substream;
snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_TIME, 1000, 200000);
return 0;
}
static int snd_usX2Y_usbpcm_close(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_usX2Y_substream *subs = runtime->private_data;
subs->pcm_substream = NULL;
return 0;
}
static struct snd_pcm_ops snd_usX2Y_usbpcm_ops =
{
.open = snd_usX2Y_usbpcm_open,
.close = snd_usX2Y_usbpcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_usX2Y_pcm_hw_params,
.hw_free = snd_usX2Y_usbpcm_hw_free,
.prepare = snd_usX2Y_usbpcm_prepare,
.trigger = snd_usX2Y_pcm_trigger,
.pointer = snd_usX2Y_pcm_pointer,
};
static int usX2Y_pcms_busy_check(struct snd_card *card)
{
struct usX2Ydev *dev = usX2Y(card);
int i;
for (i = 0; i < dev->pcm_devs * 2; i++) {
struct snd_usX2Y_substream *subs = dev->subs[i];
if (subs && subs->pcm_substream &&
SUBSTREAM_BUSY(subs->pcm_substream))
return -EBUSY;
}
return 0;
}
static int snd_usX2Y_hwdep_pcm_open(struct snd_hwdep *hw, struct file *file)
{
struct snd_card *card = hw->card;
int err;
mutex_lock(&usX2Y(card)->pcm_mutex);
err = usX2Y_pcms_busy_check(card);
if (!err)
usX2Y(card)->chip_status |= USX2Y_STAT_CHIP_MMAP_PCM_URBS;
mutex_unlock(&usX2Y(card)->pcm_mutex);
return err;
}
static int snd_usX2Y_hwdep_pcm_release(struct snd_hwdep *hw, struct file *file)
{
struct snd_card *card = hw->card;
int err;
mutex_lock(&usX2Y(card)->pcm_mutex);
err = usX2Y_pcms_busy_check(card);
if (!err)
usX2Y(hw->card)->chip_status &= ~USX2Y_STAT_CHIP_MMAP_PCM_URBS;
mutex_unlock(&usX2Y(card)->pcm_mutex);
return err;
}
static void snd_usX2Y_hwdep_pcm_vm_open(struct vm_area_struct *area)
{
}
static void snd_usX2Y_hwdep_pcm_vm_close(struct vm_area_struct *area)
{
}
static int snd_usX2Y_hwdep_pcm_vm_fault(struct vm_area_struct *area,
struct vm_fault *vmf)
{
unsigned long offset;
void *vaddr;
offset = vmf->pgoff << PAGE_SHIFT;
vaddr = (char*)((struct usX2Ydev *)area->vm_private_data)->hwdep_pcm_shm + offset;
vmf->page = virt_to_page(vaddr);
get_page(vmf->page);
return 0;
}
static const struct vm_operations_struct snd_usX2Y_hwdep_pcm_vm_ops = {
.open = snd_usX2Y_hwdep_pcm_vm_open,
.close = snd_usX2Y_hwdep_pcm_vm_close,
.fault = snd_usX2Y_hwdep_pcm_vm_fault,
};
static int snd_usX2Y_hwdep_pcm_mmap(struct snd_hwdep * hw, struct file *filp, struct vm_area_struct *area)
{
unsigned long size = (unsigned long)(area->vm_end - area->vm_start);
struct usX2Ydev *usX2Y = hw->private_data;
if (!(usX2Y->chip_status & USX2Y_STAT_CHIP_INIT))
return -EBUSY;
/* if userspace tries to mmap beyond end of our buffer, fail */
if (size > PAGE_ALIGN(sizeof(struct snd_usX2Y_hwdep_pcm_shm))) {
snd_printd("%lu > %lu\n", size, (unsigned long)sizeof(struct snd_usX2Y_hwdep_pcm_shm));
return -EINVAL;
}
if (!usX2Y->hwdep_pcm_shm) {
return -ENODEV;
}
area->vm_ops = &snd_usX2Y_hwdep_pcm_vm_ops;
area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
area->vm_private_data = hw->private_data;
return 0;
}
static void snd_usX2Y_hwdep_pcm_private_free(struct snd_hwdep *hwdep)
{
struct usX2Ydev *usX2Y = hwdep->private_data;
if (NULL != usX2Y->hwdep_pcm_shm)
snd_free_pages(usX2Y->hwdep_pcm_shm, sizeof(struct snd_usX2Y_hwdep_pcm_shm));
}
int usX2Y_hwdep_pcm_new(struct snd_card *card)
{
int err;
struct snd_hwdep *hw;
struct snd_pcm *pcm;
struct usb_device *dev = usX2Y(card)->dev;
if (1 != nr_of_packs())
return 0;
if ((err = snd_hwdep_new(card, SND_USX2Y_USBPCM_ID, 1, &hw)) < 0)
return err;
hw->iface = SNDRV_HWDEP_IFACE_USX2Y_PCM;
hw->private_data = usX2Y(card);
hw->private_free = snd_usX2Y_hwdep_pcm_private_free;
hw->ops.open = snd_usX2Y_hwdep_pcm_open;
hw->ops.release = snd_usX2Y_hwdep_pcm_release;
hw->ops.mmap = snd_usX2Y_hwdep_pcm_mmap;
hw->exclusive = 1;
sprintf(hw->name, "/proc/bus/usb/%03d/%03d/hwdeppcm", dev->bus->busnum, dev->devnum);
err = snd_pcm_new(card, NAME_ALLCAPS" hwdep Audio", 2, 1, 1, &pcm);
if (err < 0) {
return err;
}
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_usX2Y_usbpcm_ops);
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_usX2Y_usbpcm_ops);
pcm->private_data = usX2Y(card)->subs;
pcm->info_flags = 0;
sprintf(pcm->name, NAME_ALLCAPS" hwdep Audio");
if (0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream,
SNDRV_DMA_TYPE_CONTINUOUS,
snd_dma_continuous_data(GFP_KERNEL),
64*1024, 128*1024)) ||
0 > (err = snd_pcm_lib_preallocate_pages(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream,
SNDRV_DMA_TYPE_CONTINUOUS,
snd_dma_continuous_data(GFP_KERNEL),
64*1024, 128*1024))) {
return err;
}
return 0;
}
#else
int usX2Y_hwdep_pcm_new(struct snd_card *card)
{
return 0;
}
#endif

22
sound/usb/usx2y/usx2yhwdeppcm.h Normal file
View file

@ -0,0 +1,22 @@
#define MAXPACK 50
#define MAXBUFFERMS 100
#define MAXSTRIDE 3
#define SSS (((MAXPACK*MAXBUFFERMS*MAXSTRIDE + 4096) / 4096) * 4096)
struct snd_usX2Y_hwdep_pcm_shm {
char playback[SSS];
char capture0x8[SSS];
char capture0xA[SSS];
volatile int playback_iso_head;
int playback_iso_start;
struct {
int frame,
offset,
length;
} captured_iso[128];
volatile int captured_iso_head;
volatile unsigned captured_iso_frames;
int capture_iso_start;
};
int usX2Y_hwdep_pcm_new(struct snd_card *card);