250 lines
6.4 KiB
C
250 lines
6.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Driver for Tascam US-X2Y USB soundcards
|
|
*
|
|
* FPGA Loader + ALSA Startup
|
|
*
|
|
* Copyright (c) 2003 by Karsten Wiese <annabellesgarden@yahoo.de>
|
|
*/
|
|
|
|
#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 vm_fault_t snd_us428ctls_vm_fault(struct vm_fault *vmf)
|
|
{
|
|
unsigned long offset;
|
|
struct page *page;
|
|
void *vaddr;
|
|
|
|
snd_printdd("ENTER, start %lXh, pgoff %ld\n",
|
|
vmf->vma->vm_start,
|
|
vmf->pgoff);
|
|
|
|
offset = vmf->pgoff << PAGE_SHIFT;
|
|
vaddr = (char *)((struct usx2ydev *)vmf->vma->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 > US428_SHAREDMEM_PAGES) {
|
|
snd_printd("%lu > %lu\n", size, (unsigned long)US428_SHAREDMEM_PAGES);
|
|
return -EINVAL;
|
|
}
|
|
|
|
area->vm_ops = &us428ctls_vm_ops;
|
|
vm_flags_set(area, VM_DONTEXPAND | VM_DONTDUMP);
|
|
area->vm_private_data = hw->private_data;
|
|
return 0;
|
|
}
|
|
|
|
static __poll_t snd_us428ctls_poll(struct snd_hwdep *hw, struct file *file, poll_table *wait)
|
|
{
|
|
__poll_t mask = 0;
|
|
struct usx2ydev *us428 = hw->private_data;
|
|
struct us428ctls_sharedmem *shm = us428->us428ctls_sharedmem;
|
|
|
|
if (us428->chip_status & USX2Y_STAT_CHIP_HUP)
|
|
return EPOLLHUP;
|
|
|
|
poll_wait(file, &us428->us428ctls_wait_queue_head, wait);
|
|
|
|
if (shm && shm->ctl_snapshot_last != shm->ctl_snapshot_red)
|
|
mask |= EPOLLIN;
|
|
|
|
return mask;
|
|
}
|
|
|
|
|
|
static int snd_usx2y_hwdep_dsp_status(struct snd_hwdep *hw,
|
|
struct snd_hwdep_dsp_status *info)
|
|
{
|
|
static const char * const 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 (id < 0)
|
|
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 const struct snd_usb_midi_endpoint_info quirk_data_1 = {
|
|
.out_ep = 0x06,
|
|
.in_ep = 0x06,
|
|
.out_cables = 0x001,
|
|
.in_cables = 0x001
|
|
};
|
|
static const 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 const struct snd_usb_midi_endpoint_info quirk_data_2 = {
|
|
.out_ep = 0x06,
|
|
.in_ep = 0x06,
|
|
.out_cables = 0x003,
|
|
.in_cables = 0x003
|
|
};
|
|
static const 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);
|
|
const struct snd_usb_audio_quirk *quirk =
|
|
le16_to_cpu(dev->descriptor.idProduct) == USB_ID_US428 ?
|
|
&quirk_2 : &quirk_1;
|
|
|
|
snd_printdd("%s\n", __func__);
|
|
return snd_usbmidi_create(card, iface, &usx2y(card)->midi_list, quirk);
|
|
}
|
|
|
|
static int usx2y_create_alsa_devices(struct snd_card *card)
|
|
{
|
|
int err;
|
|
|
|
err = usx2y_create_usbmidi(card);
|
|
if (err < 0) {
|
|
snd_printk(KERN_ERR "%s: usx2y_create_usbmidi error %i\n", __func__, err);
|
|
return err;
|
|
}
|
|
err = usx2y_audio_create(card);
|
|
if (err < 0)
|
|
return err;
|
|
err = usx2y_hwdep_pcm_new(card);
|
|
if (err < 0)
|
|
return err;
|
|
err = snd_card_register(card);
|
|
if (err < 0)
|
|
return err;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_usx2y_hwdep_dsp_load(struct snd_hwdep *hw,
|
|
struct snd_hwdep_dsp_image *dsp)
|
|
{
|
|
struct usx2ydev *priv = hw->private_data;
|
|
struct usb_device *dev = priv->dev;
|
|
int lret, err;
|
|
char *buf;
|
|
|
|
snd_printdd("dsp_load %s\n", dsp->name);
|
|
|
|
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_async_seq04_init(priv);
|
|
if (err) {
|
|
snd_printk(KERN_ERR "usx2y_async_seq04_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);
|
|
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;
|
|
struct usx2ydev *us428 = usx2y(card);
|
|
|
|
err = snd_hwdep_new(card, SND_USX2Y_LOADER_ID, 0, &hw);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
hw->iface = SNDRV_HWDEP_IFACE_USX2Y;
|
|
hw->private_data = us428;
|
|
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, "/dev/bus/usb/%03d/%03d", device->bus->busnum, device->devnum);
|
|
|
|
us428->us428ctls_sharedmem = alloc_pages_exact(US428_SHAREDMEM_PAGES, GFP_KERNEL);
|
|
if (!us428->us428ctls_sharedmem)
|
|
return -ENOMEM;
|
|
memset(us428->us428ctls_sharedmem, -1, US428_SHAREDMEM_PAGES);
|
|
us428->us428ctls_sharedmem->ctl_snapshot_last = -2;
|
|
|
|
return 0;
|
|
}
|