/*
* usbmidi.c - ALSA USB MIDI driver
*
- * Copyright (c) 2002-2007 Clemens Ladisch
+ * Copyright (c) 2002-2009 Clemens Ladisch
* All rights reserved.
*
* Based on the OSS usb-midi driver by NAGANO Daisuke,
#include <linux/slab.h>
#include <linux/timer.h>
#include <linux/usb.h>
+#include <linux/wait.h>
+#include <linux/usb/audio.h>
+
#include <sound/core.h>
+#include <sound/control.h>
#include <sound/rawmidi.h>
#include <sound/asequencer.h>
#include "usbaudio.h"
*/
#define ERROR_DELAY_JIFFIES (HZ / 10)
+#define OUTPUT_URBS 7
+#define INPUT_URBS 7
+
MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_DESCRIPTION("USB Audio/MIDI helper module");
struct usb_protocol_ops {
void (*input)(struct snd_usb_midi_in_endpoint*, uint8_t*, int);
- void (*output)(struct snd_usb_midi_out_endpoint*);
+ void (*output)(struct snd_usb_midi_out_endpoint *ep, struct urb *urb);
void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t);
void (*init_out_endpoint)(struct snd_usb_midi_out_endpoint*);
void (*finish_out_endpoint)(struct snd_usb_midi_out_endpoint*);
};
struct snd_usb_midi {
- struct snd_usb_audio *chip;
+ struct usb_device *dev;
+ struct snd_card *card;
struct usb_interface *iface;
const struct snd_usb_audio_quirk *quirk;
struct snd_rawmidi *rmidi;
struct list_head list;
struct timer_list error_timer;
spinlock_t disc_lock;
+ struct mutex mutex;
+ u32 usb_id;
+ int next_midi_device;
struct snd_usb_midi_endpoint {
struct snd_usb_midi_out_endpoint *out;
struct snd_usb_midi_in_endpoint *in;
} endpoints[MIDI_MAX_ENDPOINTS];
unsigned long input_triggered;
+ unsigned int opened;
unsigned char disconnected;
+
+ struct snd_kcontrol *roland_load_ctl;
};
struct snd_usb_midi_out_endpoint {
struct snd_usb_midi* umidi;
- struct urb* urb;
- int urb_active;
+ struct out_urb_context {
+ struct urb *urb;
+ struct snd_usb_midi_out_endpoint *ep;
+ } urbs[OUTPUT_URBS];
+ unsigned int active_urbs;
+ unsigned int drain_urbs;
int max_transfer; /* size of urb buffer */
struct tasklet_struct tasklet;
-
+ unsigned int next_urb;
spinlock_t buffer_lock;
struct usbmidi_out_port {
uint8_t data[2];
} ports[0x10];
int current_port;
+
+ wait_queue_head_t drain_wait;
};
struct snd_usb_midi_in_endpoint {
struct snd_usb_midi* umidi;
- struct urb* urb;
+ struct urb* urbs[INPUT_URBS];
struct usbmidi_in_port {
struct snd_rawmidi_substream *substream;
u8 running_status_length;
}
}
- urb->dev = ep->umidi->chip->dev;
+ urb->dev = ep->umidi->dev;
snd_usbmidi_submit_urb(urb, GFP_ATOMIC);
}
static void snd_usbmidi_out_urb_complete(struct urb* urb)
{
- struct snd_usb_midi_out_endpoint* ep = urb->context;
+ struct out_urb_context *context = urb->context;
+ struct snd_usb_midi_out_endpoint* ep = context->ep;
+ unsigned int urb_index;
spin_lock(&ep->buffer_lock);
- ep->urb_active = 0;
+ urb_index = context - ep->urbs;
+ ep->active_urbs &= ~(1 << urb_index);
+ if (unlikely(ep->drain_urbs)) {
+ ep->drain_urbs &= ~(1 << urb_index);
+ wake_up(&ep->drain_wait);
+ }
spin_unlock(&ep->buffer_lock);
if (urb->status < 0) {
int err = snd_usbmidi_urb_error(urb->status);
*/
static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint* ep)
{
- struct urb* urb = ep->urb;
+ unsigned int urb_index;
+ struct urb* urb;
unsigned long flags;
spin_lock_irqsave(&ep->buffer_lock, flags);
- if (ep->urb_active || ep->umidi->chip->shutdown) {
+ if (ep->umidi->disconnected) {
spin_unlock_irqrestore(&ep->buffer_lock, flags);
return;
}
- urb->transfer_buffer_length = 0;
- ep->umidi->usb_protocol_ops->output(ep);
+ urb_index = ep->next_urb;
+ for (;;) {
+ if (!(ep->active_urbs & (1 << urb_index))) {
+ urb = ep->urbs[urb_index].urb;
+ urb->transfer_buffer_length = 0;
+ ep->umidi->usb_protocol_ops->output(ep, urb);
+ if (urb->transfer_buffer_length == 0)
+ break;
- if (urb->transfer_buffer_length > 0) {
- dump_urb("sending", urb->transfer_buffer,
- urb->transfer_buffer_length);
- urb->dev = ep->umidi->chip->dev;
- ep->urb_active = snd_usbmidi_submit_urb(urb, GFP_ATOMIC) >= 0;
+ dump_urb("sending", urb->transfer_buffer,
+ urb->transfer_buffer_length);
+ urb->dev = ep->umidi->dev;
+ if (snd_usbmidi_submit_urb(urb, GFP_ATOMIC) < 0)
+ break;
+ ep->active_urbs |= 1 << urb_index;
+ }
+ if (++urb_index >= OUTPUT_URBS)
+ urb_index = 0;
+ if (urb_index == ep->next_urb)
+ break;
}
+ ep->next_urb = urb_index;
spin_unlock_irqrestore(&ep->buffer_lock, flags);
}
static void snd_usbmidi_error_timer(unsigned long data)
{
struct snd_usb_midi *umidi = (struct snd_usb_midi *)data;
- int i;
+ unsigned int i, j;
spin_lock(&umidi->disc_lock);
if (umidi->disconnected) {
struct snd_usb_midi_in_endpoint *in = umidi->endpoints[i].in;
if (in && in->error_resubmit) {
in->error_resubmit = 0;
- in->urb->dev = umidi->chip->dev;
- snd_usbmidi_submit_urb(in->urb, GFP_ATOMIC);
+ for (j = 0; j < INPUT_URBS; ++j) {
+ in->urbs[j]->dev = umidi->dev;
+ snd_usbmidi_submit_urb(in->urbs[j], GFP_ATOMIC);
+ }
}
if (umidi->endpoints[i].out)
snd_usbmidi_do_output(umidi->endpoints[i].out);
static int send_bulk_static_data(struct snd_usb_midi_out_endpoint* ep,
const void *data, int len)
{
- int err;
+ int err = 0;
void *buf = kmemdup(data, len, GFP_KERNEL);
if (!buf)
return -ENOMEM;
dump_urb("sending", buf, len);
- err = usb_bulk_msg(ep->umidi->chip->dev, ep->urb->pipe, buf, len,
- NULL, 250);
+ if (ep->urbs[0].urb)
+ err = usb_bulk_msg(ep->umidi->dev, ep->urbs[0].urb->pipe,
+ buf, len, NULL, 250);
kfree(buf);
return err;
}
}
}
-static void snd_usbmidi_standard_output(struct snd_usb_midi_out_endpoint* ep)
+static void snd_usbmidi_standard_output(struct snd_usb_midi_out_endpoint* ep,
+ struct urb *urb)
{
- struct urb* urb = ep->urb;
int p;
/* FIXME: lower-numbered ports can starve higher-numbered ports */
snd_usbmidi_input_data(ep, 0, &buffer[2], buffer[0] - 1);
}
-static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint* ep)
+static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint* ep,
+ struct urb *urb)
{
uint8_t* transfer_buffer;
int count;
if (!ep->ports[0].active)
return;
- transfer_buffer = ep->urb->transfer_buffer;
+ transfer_buffer = urb->transfer_buffer;
count = snd_rawmidi_transmit(ep->ports[0].substream,
&transfer_buffer[2],
ep->max_transfer - 2);
}
transfer_buffer[0] = 0;
transfer_buffer[1] = count;
- ep->urb->transfer_buffer_length = 2 + count;
+ urb->transfer_buffer_length = 2 + count;
}
static struct usb_protocol_ops snd_usbmidi_novation_ops = {
snd_usbmidi_input_data(ep, 0, buffer, buffer_length);
}
-static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint* ep)
+static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint* ep,
+ struct urb *urb)
{
int count;
if (!ep->ports[0].active)
return;
count = snd_rawmidi_transmit(ep->ports[0].substream,
- ep->urb->transfer_buffer,
+ urb->transfer_buffer,
ep->max_transfer);
if (count < 1) {
ep->ports[0].active = 0;
return;
}
- ep->urb->transfer_buffer_length = count;
+ urb->transfer_buffer_length = count;
}
static struct usb_protocol_ops snd_usbmidi_raw_ops = {
snd_usbmidi_input_data(ep, 0, buffer, buffer_length);
}
-static void snd_usbmidi_us122l_output(struct snd_usb_midi_out_endpoint *ep)
+static void snd_usbmidi_us122l_output(struct snd_usb_midi_out_endpoint *ep,
+ struct urb *urb)
{
int count;
if (!ep->ports[0].active)
return;
- count = ep->urb->dev->speed == USB_SPEED_HIGH ? 1 : 2;
+ count = snd_usb_get_speed(ep->umidi->dev) == USB_SPEED_HIGH ? 1 : 2;
count = snd_rawmidi_transmit(ep->ports[0].substream,
- ep->urb->transfer_buffer,
+ urb->transfer_buffer,
count);
if (count < 1) {
ep->ports[0].active = 0;
return;
}
- memset(ep->urb->transfer_buffer + count, 0xFD, 9 - count);
- ep->urb->transfer_buffer_length = count;
+ memset(urb->transfer_buffer + count, 0xFD, 9 - count);
+ urb->transfer_buffer_length = count;
}
static struct usb_protocol_ops snd_usbmidi_122l_ops = {
}
}
-static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint* ep)
+static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint* ep,
+ struct urb *urb)
{
int port0 = ep->current_port;
- uint8_t* buf = ep->urb->transfer_buffer;
+ uint8_t* buf = urb->transfer_buffer;
int buf_free = ep->max_transfer;
int length, i;
*buf = 0xff;
--buf_free;
}
- ep->urb->transfer_buffer_length = ep->max_transfer - buf_free;
+ urb->transfer_buffer_length = ep->max_transfer - buf_free;
}
static struct usb_protocol_ops snd_usbmidi_emagic_ops = {
};
+static void update_roland_altsetting(struct snd_usb_midi* umidi)
+{
+ struct usb_interface *intf;
+ struct usb_host_interface *hostif;
+ struct usb_interface_descriptor *intfd;
+ int is_light_load;
+
+ intf = umidi->iface;
+ is_light_load = intf->cur_altsetting != intf->altsetting;
+ if (umidi->roland_load_ctl->private_value == is_light_load)
+ return;
+ hostif = &intf->altsetting[umidi->roland_load_ctl->private_value];
+ intfd = get_iface_desc(hostif);
+ snd_usbmidi_input_stop(&umidi->list);
+ usb_set_interface(umidi->dev, intfd->bInterfaceNumber,
+ intfd->bAlternateSetting);
+ snd_usbmidi_input_start(&umidi->list);
+}
+
+static void substream_open(struct snd_rawmidi_substream *substream, int open)
+{
+ struct snd_usb_midi* umidi = substream->rmidi->private_data;
+ struct snd_kcontrol *ctl;
+
+ mutex_lock(&umidi->mutex);
+ if (open) {
+ if (umidi->opened++ == 0 && umidi->roland_load_ctl) {
+ ctl = umidi->roland_load_ctl;
+ ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ snd_ctl_notify(umidi->card,
+ SNDRV_CTL_EVENT_MASK_INFO, &ctl->id);
+ update_roland_altsetting(umidi);
+ }
+ } else {
+ if (--umidi->opened == 0 && umidi->roland_load_ctl) {
+ ctl = umidi->roland_load_ctl;
+ ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
+ snd_ctl_notify(umidi->card,
+ SNDRV_CTL_EVENT_MASK_INFO, &ctl->id);
+ }
+ }
+ mutex_unlock(&umidi->mutex);
+}
+
static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream)
{
struct snd_usb_midi* umidi = substream->rmidi->private_data;
}
substream->runtime->private_data = port;
port->state = STATE_UNKNOWN;
+ substream_open(substream, 1);
return 0;
}
static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream)
{
+ substream_open(substream, 0);
return 0;
}
port->active = up;
if (up) {
- if (port->ep->umidi->chip->shutdown) {
+ if (port->ep->umidi->disconnected) {
/* gobble up remaining bytes to prevent wait in
* snd_rawmidi_drain_output */
while (!snd_rawmidi_transmit_empty(substream))
snd_rawmidi_transmit_ack(substream, 1);
return;
}
- tasklet_hi_schedule(&port->ep->tasklet);
+ tasklet_schedule(&port->ep->tasklet);
}
}
+static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream)
+{
+ struct usbmidi_out_port* port = substream->runtime->private_data;
+ struct snd_usb_midi_out_endpoint *ep = port->ep;
+ unsigned int drain_urbs;
+ DEFINE_WAIT(wait);
+ long timeout = msecs_to_jiffies(50);
+
+ if (ep->umidi->disconnected)
+ return;
+ /*
+ * The substream buffer is empty, but some data might still be in the
+ * currently active URBs, so we have to wait for those to complete.
+ */
+ spin_lock_irq(&ep->buffer_lock);
+ drain_urbs = ep->active_urbs;
+ if (drain_urbs) {
+ ep->drain_urbs |= drain_urbs;
+ do {
+ prepare_to_wait(&ep->drain_wait, &wait,
+ TASK_UNINTERRUPTIBLE);
+ spin_unlock_irq(&ep->buffer_lock);
+ timeout = schedule_timeout(timeout);
+ spin_lock_irq(&ep->buffer_lock);
+ drain_urbs &= ep->drain_urbs;
+ } while (drain_urbs && timeout);
+ finish_wait(&ep->drain_wait, &wait);
+ }
+ spin_unlock_irq(&ep->buffer_lock);
+}
+
static int snd_usbmidi_input_open(struct snd_rawmidi_substream *substream)
{
+ substream_open(substream, 1);
return 0;
}
static int snd_usbmidi_input_close(struct snd_rawmidi_substream *substream)
{
+ substream_open(substream, 0);
return 0;
}
.open = snd_usbmidi_output_open,
.close = snd_usbmidi_output_close,
.trigger = snd_usbmidi_output_trigger,
+ .drain = snd_usbmidi_output_drain,
};
static struct snd_rawmidi_ops snd_usbmidi_input_ops = {
.trigger = snd_usbmidi_input_trigger
};
+static void free_urb_and_buffer(struct snd_usb_midi *umidi, struct urb *urb,
+ unsigned int buffer_length)
+{
+ usb_buffer_free(umidi->dev, buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
+ usb_free_urb(urb);
+}
+
/*
* Frees an input endpoint.
* May be called when ep hasn't been initialized completely.
*/
static void snd_usbmidi_in_endpoint_delete(struct snd_usb_midi_in_endpoint* ep)
{
- if (ep->urb) {
- usb_buffer_free(ep->umidi->chip->dev,
- ep->urb->transfer_buffer_length,
- ep->urb->transfer_buffer,
- ep->urb->transfer_dma);
- usb_free_urb(ep->urb);
- }
+ unsigned int i;
+
+ for (i = 0; i < INPUT_URBS; ++i)
+ if (ep->urbs[i])
+ free_urb_and_buffer(ep->umidi, ep->urbs[i],
+ ep->urbs[i]->transfer_buffer_length);
kfree(ep);
}
void* buffer;
unsigned int pipe;
int length;
+ unsigned int i;
rep->in = NULL;
ep = kzalloc(sizeof(*ep), GFP_KERNEL);
return -ENOMEM;
ep->umidi = umidi;
- ep->urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!ep->urb) {
- snd_usbmidi_in_endpoint_delete(ep);
- return -ENOMEM;
+ for (i = 0; i < INPUT_URBS; ++i) {
+ ep->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
+ if (!ep->urbs[i]) {
+ snd_usbmidi_in_endpoint_delete(ep);
+ return -ENOMEM;
+ }
}
if (ep_info->in_interval)
- pipe = usb_rcvintpipe(umidi->chip->dev, ep_info->in_ep);
+ pipe = usb_rcvintpipe(umidi->dev, ep_info->in_ep);
else
- pipe = usb_rcvbulkpipe(umidi->chip->dev, ep_info->in_ep);
- length = usb_maxpacket(umidi->chip->dev, pipe, 0);
- buffer = usb_buffer_alloc(umidi->chip->dev, length, GFP_KERNEL,
- &ep->urb->transfer_dma);
- if (!buffer) {
- snd_usbmidi_in_endpoint_delete(ep);
- return -ENOMEM;
+ pipe = usb_rcvbulkpipe(umidi->dev, ep_info->in_ep);
+ length = usb_maxpacket(umidi->dev, pipe, 0);
+ for (i = 0; i < INPUT_URBS; ++i) {
+ buffer = usb_buffer_alloc(umidi->dev, length, GFP_KERNEL,
+ &ep->urbs[i]->transfer_dma);
+ if (!buffer) {
+ snd_usbmidi_in_endpoint_delete(ep);
+ return -ENOMEM;
+ }
+ if (ep_info->in_interval)
+ usb_fill_int_urb(ep->urbs[i], umidi->dev,
+ pipe, buffer, length,
+ snd_usbmidi_in_urb_complete,
+ ep, ep_info->in_interval);
+ else
+ usb_fill_bulk_urb(ep->urbs[i], umidi->dev,
+ pipe, buffer, length,
+ snd_usbmidi_in_urb_complete, ep);
+ ep->urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
}
- if (ep_info->in_interval)
- usb_fill_int_urb(ep->urb, umidi->chip->dev, pipe, buffer,
- length, snd_usbmidi_in_urb_complete, ep,
- ep_info->in_interval);
- else
- usb_fill_bulk_urb(ep->urb, umidi->chip->dev, pipe, buffer,
- length, snd_usbmidi_in_urb_complete, ep);
- ep->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
rep->in = ep;
return 0;
}
-static unsigned int snd_usbmidi_count_bits(unsigned int x)
-{
- unsigned int bits;
-
- for (bits = 0; x; ++bits)
- x &= x - 1;
- return bits;
-}
-
/*
* Frees an output endpoint.
* May be called when ep hasn't been initialized completely.
*/
-static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint* ep)
+static void snd_usbmidi_out_endpoint_clear(struct snd_usb_midi_out_endpoint *ep)
{
- if (ep->urb) {
- usb_buffer_free(ep->umidi->chip->dev, ep->max_transfer,
- ep->urb->transfer_buffer,
- ep->urb->transfer_dma);
- usb_free_urb(ep->urb);
- }
+ unsigned int i;
+
+ for (i = 0; i < OUTPUT_URBS; ++i)
+ if (ep->urbs[i].urb) {
+ free_urb_and_buffer(ep->umidi, ep->urbs[i].urb,
+ ep->max_transfer);
+ ep->urbs[i].urb = NULL;
+ }
+}
+
+static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint *ep)
+{
+ snd_usbmidi_out_endpoint_clear(ep);
kfree(ep);
}
struct snd_usb_midi_endpoint* rep)
{
struct snd_usb_midi_out_endpoint* ep;
- int i;
+ unsigned int i;
unsigned int pipe;
void* buffer;
return -ENOMEM;
ep->umidi = umidi;
- ep->urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!ep->urb) {
- snd_usbmidi_out_endpoint_delete(ep);
- return -ENOMEM;
+ for (i = 0; i < OUTPUT_URBS; ++i) {
+ ep->urbs[i].urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!ep->urbs[i].urb) {
+ snd_usbmidi_out_endpoint_delete(ep);
+ return -ENOMEM;
+ }
+ ep->urbs[i].ep = ep;
}
if (ep_info->out_interval)
- pipe = usb_sndintpipe(umidi->chip->dev, ep_info->out_ep);
+ pipe = usb_sndintpipe(umidi->dev, ep_info->out_ep);
else
- pipe = usb_sndbulkpipe(umidi->chip->dev, ep_info->out_ep);
- if (umidi->chip->usb_id == USB_ID(0x0a92, 0x1020)) /* ESI M4U */
- /* FIXME: we need more URBs to get reasonable bandwidth here: */
+ pipe = usb_sndbulkpipe(umidi->dev, ep_info->out_ep);
+ switch (umidi->usb_id) {
+ default:
+ ep->max_transfer = usb_maxpacket(umidi->dev, pipe, 1);
+ break;
+ /*
+ * Various chips declare a packet size larger than 4 bytes, but
+ * do not actually work with larger packets:
+ */
+ case USB_ID(0x0a92, 0x1020): /* ESI M4U */
+ case USB_ID(0x1430, 0x474b): /* RedOctane GH MIDI INTERFACE */
+ case USB_ID(0x15ca, 0x0101): /* Textech USB Midi Cable */
+ case USB_ID(0x15ca, 0x1806): /* Textech USB Midi Cable */
+ case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */
ep->max_transfer = 4;
- else
- ep->max_transfer = usb_maxpacket(umidi->chip->dev, pipe, 1);
- buffer = usb_buffer_alloc(umidi->chip->dev, ep->max_transfer,
- GFP_KERNEL, &ep->urb->transfer_dma);
- if (!buffer) {
- snd_usbmidi_out_endpoint_delete(ep);
- return -ENOMEM;
+ break;
+ }
+ for (i = 0; i < OUTPUT_URBS; ++i) {
+ buffer = usb_buffer_alloc(umidi->dev,
+ ep->max_transfer, GFP_KERNEL,
+ &ep->urbs[i].urb->transfer_dma);
+ if (!buffer) {
+ snd_usbmidi_out_endpoint_delete(ep);
+ return -ENOMEM;
+ }
+ if (ep_info->out_interval)
+ usb_fill_int_urb(ep->urbs[i].urb, umidi->dev,
+ pipe, buffer, ep->max_transfer,
+ snd_usbmidi_out_urb_complete,
+ &ep->urbs[i], ep_info->out_interval);
+ else
+ usb_fill_bulk_urb(ep->urbs[i].urb, umidi->dev,
+ pipe, buffer, ep->max_transfer,
+ snd_usbmidi_out_urb_complete,
+ &ep->urbs[i]);
+ ep->urbs[i].urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
}
- if (ep_info->out_interval)
- usb_fill_int_urb(ep->urb, umidi->chip->dev, pipe, buffer,
- ep->max_transfer, snd_usbmidi_out_urb_complete,
- ep, ep_info->out_interval);
- else
- usb_fill_bulk_urb(ep->urb, umidi->chip->dev,
- pipe, buffer, ep->max_transfer,
- snd_usbmidi_out_urb_complete, ep);
- ep->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
spin_lock_init(&ep->buffer_lock);
tasklet_init(&ep->tasklet, snd_usbmidi_out_tasklet, (unsigned long)ep);
+ init_waitqueue_head(&ep->drain_wait);
for (i = 0; i < 0x10; ++i)
if (ep_info->out_cables & (1 << i)) {
if (ep->in)
snd_usbmidi_in_endpoint_delete(ep->in);
}
+ mutex_destroy(&umidi->mutex);
kfree(umidi);
}
void snd_usbmidi_disconnect(struct list_head* p)
{
struct snd_usb_midi* umidi;
- int i;
+ unsigned int i, j;
umidi = list_entry(p, struct snd_usb_midi, list);
/*
struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i];
if (ep->out)
tasklet_kill(&ep->out->tasklet);
- if (ep->out && ep->out->urb) {
- usb_kill_urb(ep->out->urb);
+ if (ep->out) {
+ for (j = 0; j < OUTPUT_URBS; ++j)
+ usb_kill_urb(ep->out->urbs[j].urb);
if (umidi->usb_protocol_ops->finish_out_endpoint)
umidi->usb_protocol_ops->finish_out_endpoint(ep->out);
+ ep->out->active_urbs = 0;
+ if (ep->out->drain_urbs) {
+ ep->out->drain_urbs = 0;
+ wake_up(&ep->out->drain_wait);
+ }
}
if (ep->in)
- usb_kill_urb(ep->in->urb);
+ for (j = 0; j < INPUT_URBS; ++j)
+ usb_kill_urb(ep->in->urbs[j]);
/* free endpoints here; later call can result in Oops */
- if (ep->out) {
- snd_usbmidi_out_endpoint_delete(ep->out);
- ep->out = NULL;
- }
+ if (ep->out)
+ snd_usbmidi_out_endpoint_clear(ep->out);
if (ep->in) {
snd_usbmidi_in_endpoint_delete(ep->in);
ep->in = NULL;
EXTERNAL_PORT(0x086a, 0x0001, 8, "%s Broadcast"),
EXTERNAL_PORT(0x086a, 0x0002, 8, "%s Broadcast"),
EXTERNAL_PORT(0x086a, 0x0003, 4, "%s Broadcast"),
+ /* Access Music Virus TI */
+ EXTERNAL_PORT(0x133e, 0x0815, 0, "%s MIDI"),
+ PORT_INFO(0x133e, 0x0815, 1, "%s Synth", 0,
+ SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC |
+ SNDRV_SEQ_PORT_TYPE_HARDWARE |
+ SNDRV_SEQ_PORT_TYPE_SYNTHESIZER),
};
static struct port_info *find_port_info(struct snd_usb_midi* umidi, int number)
int i;
for (i = 0; i < ARRAY_SIZE(snd_usbmidi_port_info); ++i) {
- if (snd_usbmidi_port_info[i].id == umidi->chip->usb_id &&
+ if (snd_usbmidi_port_info[i].id == umidi->usb_id &&
snd_usbmidi_port_info[i].port == number)
return &snd_usbmidi_port_info[i];
}
port_info = find_port_info(umidi, number);
name_format = port_info ? port_info->name : "%s MIDI %d";
snprintf(substream->name, sizeof(substream->name),
- name_format, umidi->chip->card->shortname, number + 1);
+ name_format, umidi->card->shortname, number + 1);
*rsubstream = substream;
}
if (hostif->extralen >= 7 &&
ms_header->bLength >= 7 &&
ms_header->bDescriptorType == USB_DT_CS_INTERFACE &&
- ms_header->bDescriptorSubtype == HEADER)
+ ms_header->bDescriptorSubtype == UAC_HEADER)
snd_printdd(KERN_INFO "MIDIStreaming version %02x.%02x\n",
ms_header->bcdMSC[1], ms_header->bcdMSC[0]);
else
for (i = 0; i < intfd->bNumEndpoints; ++i) {
hostep = &hostif->endpoint[i];
ep = get_ep_desc(hostep);
- if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK &&
- (ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
+ if (!usb_endpoint_xfer_bulk(ep) && !usb_endpoint_xfer_int(ep))
continue;
ms_ep = (struct usb_ms_endpoint_descriptor*)hostep->extra;
if (hostep->extralen < 4 ||
ms_ep->bLength < 4 ||
ms_ep->bDescriptorType != USB_DT_CS_ENDPOINT ||
- ms_ep->bDescriptorSubtype != MS_GENERAL)
+ ms_ep->bDescriptorSubtype != UAC_MS_GENERAL)
continue;
- if ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
+ if (usb_endpoint_dir_out(ep)) {
if (endpoints[epidx].out_ep) {
if (++epidx >= MIDI_MAX_ENDPOINTS) {
snd_printk(KERN_WARNING "too many endpoints\n");
break;
}
}
- endpoints[epidx].out_ep = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
- if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
+ endpoints[epidx].out_ep = usb_endpoint_num(ep);
+ if (usb_endpoint_xfer_int(ep))
endpoints[epidx].out_interval = ep->bInterval;
- else if (snd_usb_get_speed(umidi->chip->dev) == USB_SPEED_LOW)
+ else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW)
/*
* Low speed bulk transfers don't exist, so
* force interrupt transfers for devices like
break;
}
}
- endpoints[epidx].in_ep = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
- if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
+ endpoints[epidx].in_ep = usb_endpoint_num(ep);
+ if (usb_endpoint_xfer_int(ep))
endpoints[epidx].in_interval = ep->bInterval;
- else if (snd_usb_get_speed(umidi->chip->dev) == USB_SPEED_LOW)
+ else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW)
endpoints[epidx].in_interval = 1;
endpoints[epidx].in_cables = (1 << ms_ep->bNumEmbMIDIJack) - 1;
snd_printdd(KERN_INFO "EP %02X: %d jack(s)\n",
return 0;
}
+static int roland_load_info(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_info *info)
+{
+ static const char *const names[] = { "High Load", "Light Load" };
+
+ info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+ info->count = 1;
+ info->value.enumerated.items = 2;
+ if (info->value.enumerated.item > 1)
+ info->value.enumerated.item = 1;
+ strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
+ return 0;
+}
+
+static int roland_load_get(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *value)
+{
+ value->value.enumerated.item[0] = kcontrol->private_value;
+ return 0;
+}
+
+static int roland_load_put(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *value)
+{
+ struct snd_usb_midi* umidi = kcontrol->private_data;
+ int changed;
+
+ if (value->value.enumerated.item[0] > 1)
+ return -EINVAL;
+ mutex_lock(&umidi->mutex);
+ changed = value->value.enumerated.item[0] != kcontrol->private_value;
+ if (changed)
+ kcontrol->private_value = value->value.enumerated.item[0];
+ mutex_unlock(&umidi->mutex);
+ return changed;
+}
+
+static struct snd_kcontrol_new roland_load_ctl = {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "MIDI Input Mode",
+ .info = roland_load_info,
+ .get = roland_load_get,
+ .put = roland_load_put,
+ .private_value = 1,
+};
+
/*
* On Roland devices, use the second alternate setting to be able to use
* the interrupt input endpoint.
snd_printdd(KERN_INFO "switching to altsetting %d with int ep\n",
intfd->bAlternateSetting);
- usb_set_interface(umidi->chip->dev, intfd->bInterfaceNumber,
+ usb_set_interface(umidi->dev, intfd->bInterfaceNumber,
intfd->bAlternateSetting);
+
+ umidi->roland_load_ctl = snd_ctl_new1(&roland_load_ctl, umidi);
+ if (snd_ctl_add(umidi->card, umidi->roland_load_ctl) < 0)
+ umidi->roland_load_ctl = NULL;
}
/*
struct usb_endpoint_descriptor* epd;
int i, out_eps = 0, in_eps = 0;
- if (USB_ID_VENDOR(umidi->chip->usb_id) == 0x0582)
+ if (USB_ID_VENDOR(umidi->usb_id) == 0x0582)
snd_usbmidi_switch_roland_altsetting(umidi);
if (endpoint[0].out_ep || endpoint[0].in_ep)
for (i = 0; i < intfd->bNumEndpoints; ++i) {
epd = get_endpoint(hostif, i);
- if ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK &&
- (epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
+ if (!usb_endpoint_xfer_bulk(epd) &&
+ !usb_endpoint_xfer_int(epd))
continue;
if (out_eps < max_endpoints &&
- (epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
- endpoint[out_eps].out_ep = epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
- if ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
+ usb_endpoint_dir_out(epd)) {
+ endpoint[out_eps].out_ep = usb_endpoint_num(epd);
+ if (usb_endpoint_xfer_int(epd))
endpoint[out_eps].out_interval = epd->bInterval;
++out_eps;
}
if (in_eps < max_endpoints &&
- (epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) {
- endpoint[in_eps].in_ep = epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
- if ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
+ usb_endpoint_dir_in(epd)) {
+ endpoint[in_eps].in_ep = usb_endpoint_num(epd);
+ if (usb_endpoint_xfer_int(epd))
endpoint[in_eps].in_interval = epd->bInterval;
++in_eps;
}
cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2;
cs_desc += cs_desc[0]) {
if (cs_desc[1] == USB_DT_CS_INTERFACE) {
- if (cs_desc[2] == MIDI_IN_JACK)
+ if (cs_desc[2] == UAC_MIDI_IN_JACK)
endpoint->in_cables = (endpoint->in_cables << 1) | 1;
- else if (cs_desc[2] == MIDI_OUT_JACK)
+ else if (cs_desc[2] == UAC_MIDI_OUT_JACK)
endpoint->out_cables = (endpoint->out_cables << 1) | 1;
}
}
}
epd = get_endpoint(hostif, 0);
- if ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_IN ||
- (epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT) {
+ if (!usb_endpoint_dir_in(epd) || !usb_endpoint_xfer_int(epd)) {
snd_printdd(KERN_ERR "endpoint[0] isn't interrupt\n");
return -ENXIO;
}
epd = get_endpoint(hostif, 2);
- if ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_OUT ||
- (epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK) {
+ if (!usb_endpoint_dir_out(epd) || !usb_endpoint_xfer_bulk(epd)) {
snd_printdd(KERN_ERR "endpoint[2] isn't bulk output\n");
return -ENXIO;
}
if (endpoint->out_cables > 0x0001) {
epd = get_endpoint(hostif, 4);
- if ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_OUT ||
- (epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK) {
+ if (!usb_endpoint_dir_out(epd) ||
+ !usb_endpoint_xfer_bulk(epd)) {
snd_printdd(KERN_ERR "endpoint[4] isn't bulk output\n");
return -ENXIO;
}
}
ep_info.out_ep = get_endpoint(hostif, 2)->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+ ep_info.out_interval = 0;
ep_info.out_cables = endpoint->out_cables & 0x5555;
err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, &umidi->endpoints[0]);
if (err < 0)
struct snd_rawmidi *rmidi;
int err;
- err = snd_rawmidi_new(umidi->chip->card, "USB MIDI",
- umidi->chip->next_midi_device++,
+ err = snd_rawmidi_new(umidi->card, "USB MIDI",
+ umidi->next_midi_device++,
out_ports, in_ports, &rmidi);
if (err < 0)
return err;
- strcpy(rmidi->name, umidi->chip->card->shortname);
+ strcpy(rmidi->name, umidi->card->shortname);
rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT |
SNDRV_RAWMIDI_INFO_INPUT |
SNDRV_RAWMIDI_INFO_DUPLEX;
void snd_usbmidi_input_stop(struct list_head* p)
{
struct snd_usb_midi* umidi;
- int i;
+ unsigned int i, j;
umidi = list_entry(p, struct snd_usb_midi, list);
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i];
if (ep->in)
- usb_kill_urb(ep->in->urb);
+ for (j = 0; j < INPUT_URBS; ++j)
+ usb_kill_urb(ep->in->urbs[j]);
}
}
static void snd_usbmidi_input_start_ep(struct snd_usb_midi_in_endpoint* ep)
{
- if (ep) {
- struct urb* urb = ep->urb;
- urb->dev = ep->umidi->chip->dev;
+ unsigned int i;
+
+ if (!ep)
+ return;
+ for (i = 0; i < INPUT_URBS; ++i) {
+ struct urb* urb = ep->urbs[i];
+ urb->dev = ep->umidi->dev;
snd_usbmidi_submit_urb(urb, GFP_KERNEL);
}
}
/*
* Creates and registers everything needed for a MIDI streaming interface.
*/
-int snd_usb_create_midi_interface(struct snd_usb_audio* chip,
- struct usb_interface* iface,
- const struct snd_usb_audio_quirk* quirk)
+int snd_usbmidi_create(struct snd_card *card,
+ struct usb_interface* iface,
+ struct list_head *midi_list,
+ const struct snd_usb_audio_quirk* quirk)
{
struct snd_usb_midi* umidi;
struct snd_usb_midi_endpoint_info endpoints[MIDI_MAX_ENDPOINTS];
umidi = kzalloc(sizeof(*umidi), GFP_KERNEL);
if (!umidi)
return -ENOMEM;
- umidi->chip = chip;
+ umidi->dev = interface_to_usbdev(iface);
+ umidi->card = card;
umidi->iface = iface;
umidi->quirk = quirk;
umidi->usb_protocol_ops = &snd_usbmidi_standard_ops;
init_timer(&umidi->error_timer);
spin_lock_init(&umidi->disc_lock);
+ mutex_init(&umidi->mutex);
+ umidi->usb_id = USB_ID(le16_to_cpu(umidi->dev->descriptor.idVendor),
+ le16_to_cpu(umidi->dev->descriptor.idProduct));
umidi->error_timer.function = snd_usbmidi_error_timer;
umidi->error_timer.data = (unsigned long)umidi;
switch (quirk ? quirk->type : QUIRK_MIDI_STANDARD_INTERFACE) {
case QUIRK_MIDI_STANDARD_INTERFACE:
err = snd_usbmidi_get_ms_info(umidi, endpoints);
- if (chip->usb_id == USB_ID(0x0763, 0x0150)) /* M-Audio Uno */
+ if (umidi->usb_id == USB_ID(0x0763, 0x0150)) /* M-Audio Uno */
umidi->usb_protocol_ops =
&snd_usbmidi_maudio_broken_running_status_ops;
break;
umidi->usb_protocol_ops = &snd_usbmidi_novation_ops;
err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
break;
- case QUIRK_MIDI_RAW:
+ case QUIRK_MIDI_FASTLANE:
umidi->usb_protocol_ops = &snd_usbmidi_raw_ops;
+ /*
+ * Interface 1 contains isochronous endpoints, but with the same
+ * numbers as in interface 0. Since it is interface 1 that the
+ * USB core has most recently seen, these descriptors are now
+ * associated with the endpoint numbers. This will foul up our
+ * attempts to submit bulk/interrupt URBs to the endpoints in
+ * interface 0, so we have to make sure that the USB core looks
+ * again at interface 0 by calling usb_set_interface() on it.
+ */
+ usb_set_interface(umidi->dev, 0, 0);
err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
break;
case QUIRK_MIDI_EMAGIC:
out_ports = 0;
in_ports = 0;
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
- out_ports += snd_usbmidi_count_bits(endpoints[i].out_cables);
- in_ports += snd_usbmidi_count_bits(endpoints[i].in_cables);
+ out_ports += hweight16(endpoints[i].out_cables);
+ in_ports += hweight16(endpoints[i].in_cables);
}
err = snd_usbmidi_create_rawmidi(umidi, out_ports, in_ports);
if (err < 0) {
return err;
}
- list_add(&umidi->list, &umidi->chip->midi_list);
+ list_add_tail(&umidi->list, midi_list);
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i)
snd_usbmidi_input_start_ep(umidi->endpoints[i].in);
return 0;
}
-EXPORT_SYMBOL(snd_usb_create_midi_interface);
+EXPORT_SYMBOL(snd_usbmidi_create);
EXPORT_SYMBOL(snd_usbmidi_input_stop);
EXPORT_SYMBOL(snd_usbmidi_input_start);
EXPORT_SYMBOL(snd_usbmidi_disconnect);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff