diff options
Diffstat (limited to 'sound/usb/usbmidi.c')
| -rw-r--r-- | sound/usb/usbmidi.c | 472 |
1 files changed, 336 insertions, 136 deletions
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index 2fb35cc22a30..6e89b8368d9a 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c @@ -1,7 +1,7 @@ /* * 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, @@ -45,7 +45,9 @@ #include <linux/slab.h> #include <linux/timer.h> #include <linux/usb.h> +#include <linux/wait.h> #include <sound/core.h> +#include <sound/control.h> #include <sound/rawmidi.h> #include <sound/asequencer.h> #include "usbaudio.h" @@ -62,6 +64,9 @@ */ #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"); @@ -90,14 +95,15 @@ struct snd_usb_midi_endpoint; 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; @@ -105,22 +111,32 @@ struct snd_usb_midi { 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 { @@ -139,11 +155,13 @@ struct snd_usb_midi_out_endpoint { 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; @@ -245,16 +263,23 @@ static void snd_usbmidi_in_urb_complete(struct urb* urb) } } - 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); @@ -274,24 +299,38 @@ static void snd_usbmidi_out_urb_complete(struct urb* urb) */ 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); } @@ -306,7 +345,7 @@ static void snd_usbmidi_out_tasklet(unsigned long data) 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) { @@ -317,8 +356,10 @@ static void snd_usbmidi_error_timer(unsigned long data) 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); @@ -330,13 +371,14 @@ static void snd_usbmidi_error_timer(unsigned long data) 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; } @@ -554,9 +596,9 @@ static void snd_usbmidi_transmit_byte(struct usbmidi_out_port* port, } } -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 */ @@ -613,14 +655,15 @@ static void snd_usbmidi_novation_input(struct snd_usb_midi_in_endpoint* ep, 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); @@ -630,7 +673,7 @@ static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint* ep) } 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 = { @@ -648,20 +691,21 @@ static void snd_usbmidi_raw_input(struct snd_usb_midi_in_endpoint* ep, 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 = { @@ -681,23 +725,24 @@ static void snd_usbmidi_us122l_input(struct snd_usb_midi_in_endpoint *ep, 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 = { @@ -786,10 +831,11 @@ static void snd_usbmidi_emagic_input(struct snd_usb_midi_in_endpoint* ep, } } -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; @@ -829,7 +875,7 @@ static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint* ep) *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 = { @@ -840,6 +886,50 @@ 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; @@ -859,11 +949,13 @@ static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream) } 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; } @@ -873,7 +965,7 @@ static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream *substream, 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)) @@ -884,13 +976,44 @@ static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream *substream, } } +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); + + /* + * 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; } @@ -908,6 +1031,7 @@ static struct snd_rawmidi_ops snd_usbmidi_output_ops = { .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 = { @@ -916,19 +1040,26 @@ 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); } @@ -943,6 +1074,7 @@ static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi* umidi, void* buffer; unsigned int pipe; int length; + unsigned int i; rep->in = NULL; ep = kzalloc(sizeof(*ep), GFP_KERNEL); @@ -950,56 +1082,53 @@ static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi* umidi, 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) { - 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); kfree(ep); } @@ -1011,7 +1140,7 @@ static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi* umidi, struct snd_usb_midi_endpoint* rep) { struct snd_usb_midi_out_endpoint* ep; - int i; + unsigned int i; unsigned int pipe; void* buffer; @@ -1021,38 +1150,46 @@ static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi* umidi, 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); + if (umidi->usb_id == USB_ID(0x0a92, 0x1020)) /* ESI M4U */ 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; + ep->max_transfer = usb_maxpacket(umidi->dev, pipe, 1); + 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)) { @@ -1081,6 +1218,7 @@ static void snd_usbmidi_free(struct snd_usb_midi* umidi) if (ep->in) snd_usbmidi_in_endpoint_delete(ep->in); } + mutex_destroy(&umidi->mutex); kfree(umidi); } @@ -1090,7 +1228,7 @@ static void snd_usbmidi_free(struct snd_usb_midi* 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); /* @@ -1105,13 +1243,15 @@ void snd_usbmidi_disconnect(struct list_head* p) 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); } 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); @@ -1274,7 +1414,7 @@ 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]; } @@ -1312,7 +1452,7 @@ static void snd_usbmidi_init_substream(struct snd_usb_midi* umidi, 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; } @@ -1410,7 +1550,7 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi, 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 @@ -1430,7 +1570,7 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi, 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", @@ -1440,6 +1580,52 @@ static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi, 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. @@ -1463,8 +1649,12 @@ static void snd_usbmidi_switch_roland_altsetting(struct snd_usb_midi* umidi) 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; } /* @@ -1480,7 +1670,7 @@ static int snd_usbmidi_detect_endpoints(struct snd_usb_midi* umidi, 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) @@ -1667,12 +1857,12 @@ static int snd_usbmidi_create_rawmidi(struct snd_usb_midi* umidi, 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; @@ -1692,21 +1882,26 @@ static int snd_usbmidi_create_rawmidi(struct snd_usb_midi* umidi, 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); } } @@ -1727,9 +1922,10 @@ void snd_usbmidi_input_start(struct list_head* p) /* * 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]; @@ -1739,12 +1935,16 @@ int snd_usb_create_midi_interface(struct snd_usb_audio* chip, 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; @@ -1753,7 +1953,7 @@ int snd_usb_create_midi_interface(struct snd_usb_audio* chip, 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; @@ -1789,7 +1989,7 @@ int snd_usb_create_midi_interface(struct snd_usb_audio* chip, * 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->chip->dev, 0, 0); + usb_set_interface(umidi->dev, 0, 0); err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); break; case QUIRK_MIDI_EMAGIC: @@ -1816,8 +2016,8 @@ int snd_usb_create_midi_interface(struct snd_usb_audio* chip, 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) { @@ -1835,14 +2035,14 @@ int snd_usb_create_midi_interface(struct snd_usb_audio* chip, 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); |