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Diffstat (limited to 'sound/usb/usx2y/usX2Yhwdep.c')
-rw-r--r--sound/usb/usx2y/usX2Yhwdep.c137
1 files changed, 68 insertions, 69 deletions
diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c
index 22412cd69e98..4937ede0b5d7 100644
--- a/sound/usb/usx2y/usX2Yhwdep.c
+++ b/sound/usb/usx2y/usX2Yhwdep.c
@@ -21,15 +21,15 @@
static vm_fault_t snd_us428ctls_vm_fault(struct vm_fault *vmf)
{
unsigned long offset;
- struct page * page;
+ 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;
+ vaddr = (char *)((struct usx2ydev *)vmf->vma->vm_private_data)->us428ctls_sharedmem + offset;
page = virt_to_page(vaddr);
get_page(page);
vmf->page = page;
@@ -44,32 +44,24 @@ 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)
+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;
+ 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))
+ 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 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;
}
- if (!us428->us428ctls_sharedmem) {
- init_waitqueue_head(&us428->us428ctls_wait_queue_head);
- us428->us428ctls_sharedmem = alloc_pages_exact(sizeof(struct us428ctls_sharedmem), GFP_KERNEL);
- if (!us428->us428ctls_sharedmem)
- 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;
+ vm_flags_set(area, VM_DONTEXPAND | VM_DONTDUMP);
area->vm_private_data = hw->private_data;
return 0;
}
@@ -77,21 +69,22 @@ static int snd_us428ctls_mmap(struct snd_hwdep * hw, struct file *filp, struct v
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 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 != NULL && shm->CtlSnapShotLast != shm->CtlSnapShotRed)
+ 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,
+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] = {
@@ -99,7 +92,7 @@ static int snd_usX2Y_hwdep_dsp_status(struct snd_hwdep *hw,
[USX2Y_TYPE_224] = "us224",
[USX2Y_TYPE_428] = "us428",
};
- struct usX2Ydev *us428 = hw->private_data;
+ struct usx2ydev *us428 = hw->private_data;
int id = -1;
switch (le16_to_cpu(us428->dev->descriptor.idProduct)) {
@@ -113,7 +106,7 @@ static int snd_usX2Y_hwdep_dsp_status(struct snd_hwdep *hw,
id = USX2Y_TYPE_428;
break;
}
- if (0 > id)
+ if (id < 0)
return -ENODEV;
strcpy(info->id, type_ids[id]);
info->num_dsps = 2; // 0: Prepad Data, 1: FPGA Code
@@ -123,8 +116,7 @@ static int snd_usX2Y_hwdep_dsp_status(struct snd_hwdep *hw,
return 0;
}
-
-static int usX2Y_create_usbmidi(struct snd_card *card)
+static int usx2y_create_usbmidi(struct snd_card *card)
{
static const struct snd_usb_midi_endpoint_info quirk_data_1 = {
.out_ep = 0x06,
@@ -135,8 +127,8 @@ static int usX2Y_create_usbmidi(struct snd_card *card)
static const struct snd_usb_audio_quirk quirk_1 = {
.vendor_name = "TASCAM",
.product_name = NAME_ALLCAPS,
- .ifnum = 0,
- .type = QUIRK_MIDI_FIXED_ENDPOINT,
+ .ifnum = 0,
+ .type = QUIRK_MIDI_FIXED_ENDPOINT,
.data = &quirk_data_1
};
static const struct snd_usb_midi_endpoint_info quirk_data_2 = {
@@ -148,49 +140,50 @@ static int usX2Y_create_usbmidi(struct snd_card *card)
static const struct snd_usb_audio_quirk quirk_2 = {
.vendor_name = "TASCAM",
.product_name = "US428",
- .ifnum = 0,
- .type = QUIRK_MIDI_FIXED_ENDPOINT,
+ .ifnum = 0,
+ .type = QUIRK_MIDI_FIXED_ENDPOINT,
.data = &quirk_data_2
};
- struct usb_device *dev = usX2Y(card)->dev;
+ 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("usX2Y_create_usbmidi \n");
- return snd_usbmidi_create(card, iface, &usX2Y(card)->midi_list, quirk);
+ 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)
+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;
-}
+ 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,
+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;
+ 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);
+ snd_printdd("dsp_load %s\n", dsp->name);
buf = memdup_user(dsp->image, dsp->length);
if (IS_ERR(buf))
@@ -198,7 +191,7 @@ static int snd_usX2Y_hwdep_dsp_load(struct snd_hwdep *hw,
err = usb_set_interface(dev, 0, 1);
if (err)
- snd_printk(KERN_ERR "usb_set_interface error \n");
+ 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);
@@ -206,45 +199,51 @@ static int snd_usX2Y_hwdep_dsp_load(struct snd_hwdep *hw,
return err;
if (dsp->index == 1) {
msleep(250); // give the device some time
- err = usX2Y_AsyncSeq04_init(priv);
+ err = usx2y_async_seq04_init(priv);
if (err) {
- snd_printk(KERN_ERR "usX2Y_AsyncSeq04_init error \n");
+ snd_printk(KERN_ERR "usx2y_async_seq04_init error\n");
return err;
}
- err = usX2Y_In04_init(priv);
+ err = usx2y_in04_init(priv);
if (err) {
- snd_printk(KERN_ERR "usX2Y_In04_init error \n");
+ snd_printk(KERN_ERR "usx2y_in04_init error\n");
return err;
}
- err = usX2Y_create_alsa_devices(hw->card);
+ 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);
+ snd_printk(KERN_ERR "usx2y_create_alsa_devices error %i\n", err);
return err;
}
- priv->chip_status |= USX2Y_STAT_CHIP_INIT;
+ 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 usx2y_hwdep_new(struct snd_card *card, struct usb_device *device)
{
int err;
struct snd_hwdep *hw;
+ struct usx2ydev *us428 = usx2y(card);
- if ((err = snd_hwdep_new(card, SND_USX2Y_LOADER_ID, 0, &hw)) < 0)
+ 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 = usX2Y(card);
- hw->ops.dsp_status = snd_usX2Y_hwdep_dsp_status;
- hw->ops.dsp_load = snd_usX2Y_hwdep_dsp_load;
+ 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;
}
-
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.