#include <linux/string.h>
#include <linux/init.h>
#include <linux/slab.h>
+#include <linux/timer.h>
#include <linux/usb.h>
#include <sound/core.h>
#include <sound/minors.h>
*/
/* #define DUMP_PACKETS */
+/*
+ * how long to wait after some USB errors, so that khubd can disconnect() us
+ * without too many spurious errors
+ */
+#define ERROR_DELAY_JIFFIES (HZ / 10)
+
MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
MODULE_DESCRIPTION("USB Audio/MIDI helper module");
snd_rawmidi_t* rmidi;
struct usb_protocol_ops* usb_protocol_ops;
struct list_head list;
+ struct timer_list error_timer;
struct snd_usb_midi_endpoint {
snd_usb_midi_out_endpoint_t *out;
struct usbmidi_in_port {
snd_rawmidi_substream_t* substream;
} ports[0x10];
- int seen_f5;
+ u8 seen_f5;
+ u8 error_resubmit;
int current_port;
};
*/
static int snd_usbmidi_urb_error(int status)
{
- if (status == -ENOENT)
- return status; /* killed */
- if (status == -EILSEQ ||
- status == -ECONNRESET ||
- status == -ETIMEDOUT)
- return -ENODEV; /* device removed/shutdown */
- snd_printk(KERN_ERR "urb status %d\n", status);
- return 0; /* continue */
+ switch (status) {
+ /* manually unlinked, or device gone */
+ case -ENOENT:
+ case -ECONNRESET:
+ case -ESHUTDOWN:
+ case -ENODEV:
+ return -ENODEV;
+ /* errors that might occur during unplugging */
+ case -EPROTO: /* EHCI */
+ case -ETIMEDOUT: /* OHCI */
+ case -EILSEQ: /* UHCI */
+ return -EIO;
+ default:
+ snd_printk(KERN_ERR "urb status %d\n", status);
+ return 0; /* continue */
+ }
}
/*
ep->umidi->usb_protocol_ops->input(ep, urb->transfer_buffer,
urb->actual_length);
} else {
- if (snd_usbmidi_urb_error(urb->status) < 0)
+ int err = snd_usbmidi_urb_error(urb->status);
+ if (err < 0) {
+ if (err != -ENODEV) {
+ ep->error_resubmit = 1;
+ mod_timer(&ep->umidi->error_timer,
+ jiffies + ERROR_DELAY_JIFFIES);
+ }
return;
+ }
}
if (usb_pipe_needs_resubmit(urb->pipe)) {
ep->urb_active = 0;
spin_unlock(&ep->buffer_lock);
if (urb->status < 0) {
- if (snd_usbmidi_urb_error(urb->status) < 0)
+ int err = snd_usbmidi_urb_error(urb->status);
+ if (err < 0) {
+ if (err != -ENODEV)
+ mod_timer(&ep->umidi->error_timer,
+ jiffies + ERROR_DELAY_JIFFIES);
return;
+ }
}
snd_usbmidi_do_output(ep);
}
snd_usbmidi_do_output(ep);
}
+/* called after transfers had been interrupted due to some USB error */
+static void snd_usbmidi_error_timer(unsigned long data)
+{
+ snd_usb_midi_t *umidi = (snd_usb_midi_t *)data;
+ int i;
+
+ for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
+ snd_usb_midi_in_endpoint_t *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);
+ }
+ if (umidi->endpoints[i].out)
+ snd_usbmidi_do_output(umidi->endpoints[i].out);
+ }
+}
+
/* helper function to send static data that may not DMA-able */
static int send_bulk_static_data(snd_usb_midi_out_endpoint_t* ep,
const void *data, int len)
};
/*
- * Mark of the Unicorn USB MIDI protocol: raw MIDI.
+ * "raw" protocol: used by the MOTU FastLane.
*/
-static void snd_usbmidi_motu_input(snd_usb_midi_in_endpoint_t* ep,
- uint8_t* buffer, int buffer_length)
+static void snd_usbmidi_raw_input(snd_usb_midi_in_endpoint_t* ep,
+ uint8_t* buffer, int buffer_length)
{
snd_usbmidi_input_data(ep, 0, buffer, buffer_length);
}
-static void snd_usbmidi_motu_output(snd_usb_midi_out_endpoint_t* ep)
+static void snd_usbmidi_raw_output(snd_usb_midi_out_endpoint_t* ep)
{
int count;
ep->urb->transfer_buffer_length = count;
}
-static struct usb_protocol_ops snd_usbmidi_motu_ops = {
- .input = snd_usbmidi_motu_input,
- .output = snd_usbmidi_motu_output,
+static struct usb_protocol_ops snd_usbmidi_raw_ops = {
+ .input = snd_usbmidi_raw_input,
+ .output = snd_usbmidi_raw_output,
};
/*
static void snd_usbmidi_emagic_input(snd_usb_midi_in_endpoint_t* ep,
uint8_t* buffer, int buffer_length)
{
- /* ignore padding bytes at end of buffer */
- while (buffer_length > 0 && buffer[buffer_length - 1] == 0xff)
- --buffer_length;
+ int i;
+
+ /* FF indicates end of valid data */
+ for (i = 0; i < buffer_length; ++i)
+ if (buffer[i] == 0xff) {
+ buffer_length = i;
+ break;
+ }
/* handle F5 at end of last buffer */
if (ep->seen_f5)
goto switch_port;
while (buffer_length > 0) {
- int i;
-
/* determine size of data until next F5 */
for (i = 0; i < buffer_length; ++i)
if (buffer[i] == 0xf5)
break;
}
}
+ if (buf_free < ep->max_transfer && buf_free > 0) {
+ *buf = 0xff;
+ --buf_free;
+ }
ep->urb->transfer_buffer_length = ep->max_transfer - buf_free;
}
static void snd_usbmidi_in_endpoint_delete(snd_usb_midi_in_endpoint_t* ep)
{
if (ep->urb) {
- kfree(ep->urb->transfer_buffer);
+ 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);
}
kfree(ep);
int length;
rep->in = NULL;
- ep = kcalloc(1, sizeof(*ep), GFP_KERNEL);
+ ep = kzalloc(sizeof(*ep), GFP_KERNEL);
if (!ep)
return -ENOMEM;
ep->umidi = umidi;
else
pipe = usb_rcvbulkpipe(umidi->chip->dev, ep_info->in_ep);
length = usb_maxpacket(umidi->chip->dev, pipe, 0);
- buffer = kmalloc(length, GFP_KERNEL);
+ buffer = usb_buffer_alloc(umidi->chip->dev, length, GFP_KERNEL,
+ &ep->urb->transfer_dma);
if (!buffer) {
snd_usbmidi_in_endpoint_delete(ep);
return -ENOMEM;
usb_fill_bulk_urb(ep->urb, umidi->chip->dev, pipe, buffer, length,
snd_usb_complete_callback(snd_usbmidi_in_urb_complete),
ep);
+ ep->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
rep->in = ep;
return 0;
*/
static void snd_usbmidi_out_endpoint_delete(snd_usb_midi_out_endpoint_t* ep)
{
- if (ep->tasklet.func)
- tasklet_kill(&ep->tasklet);
if (ep->urb) {
- kfree(ep->urb->transfer_buffer);
+ usb_buffer_free(ep->umidi->chip->dev, ep->max_transfer,
+ ep->urb->transfer_buffer,
+ ep->urb->transfer_dma);
usb_free_urb(ep->urb);
}
kfree(ep);
void* buffer;
rep->out = NULL;
- ep = kcalloc(1, sizeof(*ep), GFP_KERNEL);
+ ep = kzalloc(sizeof(*ep), GFP_KERNEL);
if (!ep)
return -ENOMEM;
ep->umidi = umidi;
/* we never use interrupt output pipes */
pipe = usb_sndbulkpipe(umidi->chip->dev, ep_info->out_ep);
ep->max_transfer = usb_maxpacket(umidi->chip->dev, pipe, 1);
- buffer = kmalloc(ep->max_transfer, GFP_KERNEL);
+ 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;
usb_fill_bulk_urb(ep->urb, umidi->chip->dev, pipe, buffer,
ep->max_transfer,
snd_usb_complete_callback(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);
/*
* Unlinks all URBs (must be done before the usb_device is deleted).
*/
-void snd_usbmidi_disconnect(struct list_head* p, struct usb_driver *driver)
+void snd_usbmidi_disconnect(struct list_head* p)
{
snd_usb_midi_t* umidi;
int i;
umidi = list_entry(p, snd_usb_midi_t, list);
+ del_timer_sync(&umidi->error_timer);
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
snd_usb_midi_endpoint_t* 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 (umidi->usb_protocol_ops->finish_out_endpoint)
* such as internal control or synthesizer ports.
*/
static struct {
- __u16 vendor;
- __u16 product;
+ u32 id;
int port;
const char *name_format;
} snd_usbmidi_port_names[] = {
/* Roland UA-100 */
- {0x0582, 0x0000, 2, "%s Control"},
+ { USB_ID(0x0582, 0x0000), 2, "%s Control" },
/* Roland SC-8850 */
- {0x0582, 0x0003, 0, "%s Part A"},
- {0x0582, 0x0003, 1, "%s Part B"},
- {0x0582, 0x0003, 2, "%s Part C"},
- {0x0582, 0x0003, 3, "%s Part D"},
- {0x0582, 0x0003, 4, "%s MIDI 1"},
- {0x0582, 0x0003, 5, "%s MIDI 2"},
+ { USB_ID(0x0582, 0x0003), 0, "%s Part A" },
+ { USB_ID(0x0582, 0x0003), 1, "%s Part B" },
+ { USB_ID(0x0582, 0x0003), 2, "%s Part C" },
+ { USB_ID(0x0582, 0x0003), 3, "%s Part D" },
+ { USB_ID(0x0582, 0x0003), 4, "%s MIDI 1" },
+ { USB_ID(0x0582, 0x0003), 5, "%s MIDI 2" },
/* Roland U-8 */
- {0x0582, 0x0004, 0, "%s MIDI"},
- {0x0582, 0x0004, 1, "%s Control"},
+ { USB_ID(0x0582, 0x0004), 0, "%s MIDI" },
+ { USB_ID(0x0582, 0x0004), 1, "%s Control" },
/* Roland SC-8820 */
- {0x0582, 0x0007, 0, "%s Part A"},
- {0x0582, 0x0007, 1, "%s Part B"},
- {0x0582, 0x0007, 2, "%s MIDI"},
+ { USB_ID(0x0582, 0x0007), 0, "%s Part A" },
+ { USB_ID(0x0582, 0x0007), 1, "%s Part B" },
+ { USB_ID(0x0582, 0x0007), 2, "%s MIDI" },
/* Roland SK-500 */
- {0x0582, 0x000b, 0, "%s Part A"},
- {0x0582, 0x000b, 1, "%s Part B"},
- {0x0582, 0x000b, 2, "%s MIDI"},
+ { USB_ID(0x0582, 0x000b), 0, "%s Part A" },
+ { USB_ID(0x0582, 0x000b), 1, "%s Part B" },
+ { USB_ID(0x0582, 0x000b), 2, "%s MIDI" },
/* Roland SC-D70 */
- {0x0582, 0x000c, 0, "%s Part A"},
- {0x0582, 0x000c, 1, "%s Part B"},
- {0x0582, 0x000c, 2, "%s MIDI"},
+ { USB_ID(0x0582, 0x000c), 0, "%s Part A" },
+ { USB_ID(0x0582, 0x000c), 1, "%s Part B" },
+ { USB_ID(0x0582, 0x000c), 2, "%s MIDI" },
/* Edirol UM-880 */
- {0x0582, 0x0014, 8, "%s Control"},
+ { USB_ID(0x0582, 0x0014), 8, "%s Control" },
/* Edirol SD-90 */
- {0x0582, 0x0016, 0, "%s Part A"},
- {0x0582, 0x0016, 1, "%s Part B"},
- {0x0582, 0x0016, 2, "%s MIDI 1"},
- {0x0582, 0x0016, 3, "%s MIDI 2"},
+ { USB_ID(0x0582, 0x0016), 0, "%s Part A" },
+ { USB_ID(0x0582, 0x0016), 1, "%s Part B" },
+ { USB_ID(0x0582, 0x0016), 2, "%s MIDI 1" },
+ { USB_ID(0x0582, 0x0016), 3, "%s MIDI 2" },
/* Edirol UM-550 */
- {0x0582, 0x0023, 5, "%s Control"},
+ { USB_ID(0x0582, 0x0023), 5, "%s Control" },
/* Edirol SD-20 */
- {0x0582, 0x0027, 0, "%s Part A"},
- {0x0582, 0x0027, 1, "%s Part B"},
- {0x0582, 0x0027, 2, "%s MIDI"},
+ { USB_ID(0x0582, 0x0027), 0, "%s Part A" },
+ { USB_ID(0x0582, 0x0027), 1, "%s Part B" },
+ { USB_ID(0x0582, 0x0027), 2, "%s MIDI" },
/* Edirol SD-80 */
- {0x0582, 0x0029, 0, "%s Part A"},
- {0x0582, 0x0029, 1, "%s Part B"},
- {0x0582, 0x0029, 2, "%s MIDI 1"},
- {0x0582, 0x0029, 3, "%s MIDI 2"},
+ { USB_ID(0x0582, 0x0029), 0, "%s Part A" },
+ { USB_ID(0x0582, 0x0029), 1, "%s Part B" },
+ { USB_ID(0x0582, 0x0029), 2, "%s MIDI 1" },
+ { USB_ID(0x0582, 0x0029), 3, "%s MIDI 2" },
/* Edirol UA-700 */
- {0x0582, 0x002b, 0, "%s MIDI"},
- {0x0582, 0x002b, 1, "%s Control"},
+ { USB_ID(0x0582, 0x002b), 0, "%s MIDI" },
+ { USB_ID(0x0582, 0x002b), 1, "%s Control" },
/* Roland VariOS */
- {0x0582, 0x002f, 0, "%s MIDI"},
- {0x0582, 0x002f, 1, "%s External MIDI"},
- {0x0582, 0x002f, 2, "%s Sync"},
+ { USB_ID(0x0582, 0x002f), 0, "%s MIDI" },
+ { USB_ID(0x0582, 0x002f), 1, "%s External MIDI" },
+ { USB_ID(0x0582, 0x002f), 2, "%s Sync" },
/* Edirol PCR */
- {0x0582, 0x0033, 0, "%s MIDI"},
- {0x0582, 0x0033, 1, "%s 1"},
- {0x0582, 0x0033, 2, "%s 2"},
+ { USB_ID(0x0582, 0x0033), 0, "%s MIDI" },
+ { USB_ID(0x0582, 0x0033), 1, "%s 1" },
+ { USB_ID(0x0582, 0x0033), 2, "%s 2" },
/* BOSS GS-10 */
- {0x0582, 0x003b, 0, "%s MIDI"},
- {0x0582, 0x003b, 1, "%s Control"},
+ { USB_ID(0x0582, 0x003b), 0, "%s MIDI" },
+ { USB_ID(0x0582, 0x003b), 1, "%s Control" },
/* Edirol UA-1000 */
- {0x0582, 0x0044, 0, "%s MIDI"},
- {0x0582, 0x0044, 1, "%s Control"},
+ { USB_ID(0x0582, 0x0044), 0, "%s MIDI" },
+ { USB_ID(0x0582, 0x0044), 1, "%s Control" },
/* Edirol UR-80 */
- {0x0582, 0x0048, 0, "%s MIDI"},
- {0x0582, 0x0048, 1, "%s 1"},
- {0x0582, 0x0048, 2, "%s 2"},
+ { USB_ID(0x0582, 0x0048), 0, "%s MIDI" },
+ { USB_ID(0x0582, 0x0048), 1, "%s 1" },
+ { USB_ID(0x0582, 0x0048), 2, "%s 2" },
/* Edirol PCR-A */
- {0x0582, 0x004d, 0, "%s MIDI"},
- {0x0582, 0x004d, 1, "%s 1"},
- {0x0582, 0x004d, 2, "%s 2"},
+ { USB_ID(0x0582, 0x004d), 0, "%s MIDI" },
+ { USB_ID(0x0582, 0x004d), 1, "%s 1" },
+ { USB_ID(0x0582, 0x004d), 2, "%s 2" },
/* M-Audio MidiSport 8x8 */
- {0x0763, 0x1031, 8, "%s Control"},
- {0x0763, 0x1033, 8, "%s Control"},
+ { USB_ID(0x0763, 0x1031), 8, "%s Control" },
+ { USB_ID(0x0763, 0x1033), 8, "%s Control" },
/* MOTU Fastlane */
- {0x07fd, 0x0001, 0, "%s MIDI A"},
- {0x07fd, 0x0001, 1, "%s MIDI B"},
+ { USB_ID(0x07fd, 0x0001), 0, "%s MIDI A" },
+ { USB_ID(0x07fd, 0x0001), 1, "%s MIDI B" },
/* Emagic Unitor8/AMT8/MT4 */
- {0x086a, 0x0001, 8, "%s Broadcast"},
- {0x086a, 0x0002, 8, "%s Broadcast"},
- {0x086a, 0x0003, 4, "%s Broadcast"},
+ { USB_ID(0x086a, 0x0001), 8, "%s Broadcast" },
+ { USB_ID(0x086a, 0x0002), 8, "%s Broadcast" },
+ { USB_ID(0x086a, 0x0003), 4, "%s Broadcast" },
};
static void snd_usbmidi_init_substream(snd_usb_midi_t* umidi,
snd_rawmidi_substream_t** rsubstream)
{
int i;
- __u16 vendor, product;
const char *name_format;
snd_rawmidi_substream_t* substream = snd_usbmidi_find_substream(umidi, stream, number);
/* TODO: read port name from jack descriptor */
name_format = "%s MIDI %d";
- vendor = le16_to_cpu(umidi->chip->dev->descriptor.idVendor);
- product = le16_to_cpu(umidi->chip->dev->descriptor.idProduct);
for (i = 0; i < ARRAY_SIZE(snd_usbmidi_port_names); ++i) {
- if (snd_usbmidi_port_names[i].vendor == vendor &&
- snd_usbmidi_port_names[i].product == product &&
+ if (snd_usbmidi_port_names[i].id == umidi->chip->usb_id &&
snd_usbmidi_port_names[i].port == number) {
name_format = snd_usbmidi_port_names[i].name_format;
break;
struct usb_endpoint_descriptor* epd;
int i, out_eps = 0, in_eps = 0;
- if (le16_to_cpu(umidi->chip->dev->descriptor.idVendor) == 0x0582)
+ if (USB_ID_VENDOR(umidi->chip->usb_id) == 0x0582)
snd_usbmidi_switch_roland_altsetting(umidi);
+ if (endpoint[0].out_ep || endpoint[0].in_ep)
+ return 0;
+
intf = umidi->iface;
if (!intf || intf->num_altsetting < 1)
return -ENOENT;
int out_ports, in_ports;
int i, err;
- umidi = kcalloc(1, sizeof(*umidi), GFP_KERNEL);
+ umidi = kzalloc(sizeof(*umidi), GFP_KERNEL);
if (!umidi)
return -ENOMEM;
umidi->chip = chip;
umidi->iface = iface;
umidi->quirk = quirk;
umidi->usb_protocol_ops = &snd_usbmidi_standard_ops;
+ init_timer(&umidi->error_timer);
+ umidi->error_timer.function = snd_usbmidi_error_timer;
+ umidi->error_timer.data = (unsigned long)umidi;
/* detect the endpoint(s) to use */
memset(endpoints, 0, sizeof(endpoints));
umidi->usb_protocol_ops = &snd_usbmidi_novation_ops;
err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
break;
- case QUIRK_MIDI_MOTU:
- umidi->usb_protocol_ops = &snd_usbmidi_motu_ops;
+ case QUIRK_MIDI_RAW:
+ umidi->usb_protocol_ops = &snd_usbmidi_raw_ops;
err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
break;
case QUIRK_MIDI_EMAGIC:
sizeof(snd_usb_midi_endpoint_info_t));
err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1);
break;
+ case QUIRK_MIDI_MIDITECH:
+ err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
+ break;
default:
snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
err = -ENXIO;
Code Review / linux-3.10.git / blobdiff