![Linus Torvalds](/assets/img/avatar_default.png)
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (526 commits) ASoC: twl6040 - Add method to query optimum PDM_DL1 gain ALSA: hda - Fix the lost power-setup of seconary pins after PM resume ALSA: usb-audio: add Yamaha MOX6/MOX8 support ALSA: virtuoso: add S/PDIF input support for all Xonars ALSA: ice1724 - Support for ooAoo SQ210a ALSA: ice1724 - Allow card info based on model only ALSA: ice1724 - Create capture pcm only for ADC-enabled configurations ALSA: hdspm - Provide unique driver id based on card serial ASoC: Dynamically allocate the rtd device for a non-empty release() ASoC: Fix recursive dependency due to select ATMEL_SSC in SND_ATMEL_SOC_SSC ALSA: hda - Fix the detection of "Loopback Mixing" control for VIA codecs ALSA: hda - Return the error from get_wcaps_type() for invalid NIDs ALSA: hda - Use auto-parser for HP laptops with cx20459 codec ALSA: asihpi - Fix potential Oops in snd_asihpi_cmode_info() ALSA: hdsp - Fix potential Oops in snd_hdsp_info_pref_sync_ref() ALSA: hda/cirrus - support for iMac12,2 model ASoC: cx20442: add bias control over a platform provided regulator ALSA: usb-audio - Avoid flood of frame-active debug messages ALSA: snd-usb-us122l: Delete calls to preempt_disable mfd: Put WM8994 into cache only mode when suspending ... Fix up trivial conflicts in: - arch/arm/mach-s3c64xx/mach-crag6410.c: renamed speyside_wm8962 to tobermory, added littlemill right next to it - drivers/base/regmap/{regcache.c,regmap.c}: duplicate diff that had already come in with other changes in the regmap tree
1391 lines
37 KiB
C
1391 lines
37 KiB
C
/*
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* Edirol UA-101/UA-1000 driver
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* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
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*
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* This driver is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2.
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*
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* This driver is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this driver. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/usb.h>
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#include <linux/usb/audio.h>
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#include <sound/core.h>
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#include <sound/initval.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include "../usbaudio.h"
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#include "../midi.h"
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MODULE_DESCRIPTION("Edirol UA-101/1000 driver");
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MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
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MODULE_LICENSE("GPL v2");
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MODULE_SUPPORTED_DEVICE("{{Edirol,UA-101},{Edirol,UA-1000}}");
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/*
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* Should not be lower than the minimum scheduling delay of the host
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* controller. Some Intel controllers need more than one frame; as long as
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* that driver doesn't tell us about this, use 1.5 frames just to be sure.
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*/
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#define MIN_QUEUE_LENGTH 12
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/* Somewhat random. */
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#define MAX_QUEUE_LENGTH 30
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/*
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* This magic value optimizes memory usage efficiency for the UA-101's packet
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* sizes at all sample rates, taking into account the stupid cache pool sizes
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* that usb_alloc_coherent() uses.
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*/
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#define DEFAULT_QUEUE_LENGTH 21
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#define MAX_PACKET_SIZE 672 /* hardware specific */
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#define MAX_MEMORY_BUFFERS DIV_ROUND_UP(MAX_QUEUE_LENGTH, \
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PAGE_SIZE / MAX_PACKET_SIZE)
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
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static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
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static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
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static unsigned int queue_length = 21;
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module_param_array(index, int, NULL, 0444);
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MODULE_PARM_DESC(index, "card index");
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module_param_array(id, charp, NULL, 0444);
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MODULE_PARM_DESC(id, "ID string");
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module_param_array(enable, bool, NULL, 0444);
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MODULE_PARM_DESC(enable, "enable card");
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module_param(queue_length, uint, 0644);
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MODULE_PARM_DESC(queue_length, "USB queue length in microframes, "
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__stringify(MIN_QUEUE_LENGTH)"-"__stringify(MAX_QUEUE_LENGTH));
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enum {
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INTF_PLAYBACK,
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INTF_CAPTURE,
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INTF_MIDI,
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INTF_COUNT
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};
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/* bits in struct ua101::states */
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enum {
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USB_CAPTURE_RUNNING,
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USB_PLAYBACK_RUNNING,
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ALSA_CAPTURE_OPEN,
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ALSA_PLAYBACK_OPEN,
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ALSA_CAPTURE_RUNNING,
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ALSA_PLAYBACK_RUNNING,
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CAPTURE_URB_COMPLETED,
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PLAYBACK_URB_COMPLETED,
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DISCONNECTED,
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};
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struct ua101 {
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struct usb_device *dev;
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struct snd_card *card;
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struct usb_interface *intf[INTF_COUNT];
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int card_index;
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struct snd_pcm *pcm;
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struct list_head midi_list;
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u64 format_bit;
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unsigned int rate;
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unsigned int packets_per_second;
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spinlock_t lock;
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struct mutex mutex;
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unsigned long states;
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/* FIFO to synchronize playback rate to capture rate */
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unsigned int rate_feedback_start;
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unsigned int rate_feedback_count;
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u8 rate_feedback[MAX_QUEUE_LENGTH];
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struct list_head ready_playback_urbs;
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struct tasklet_struct playback_tasklet;
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wait_queue_head_t alsa_capture_wait;
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wait_queue_head_t rate_feedback_wait;
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wait_queue_head_t alsa_playback_wait;
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struct ua101_stream {
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struct snd_pcm_substream *substream;
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unsigned int usb_pipe;
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unsigned int channels;
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unsigned int frame_bytes;
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unsigned int max_packet_bytes;
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unsigned int period_pos;
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unsigned int buffer_pos;
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unsigned int queue_length;
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struct ua101_urb {
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struct urb urb;
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struct usb_iso_packet_descriptor iso_frame_desc[1];
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struct list_head ready_list;
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} *urbs[MAX_QUEUE_LENGTH];
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struct {
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unsigned int size;
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void *addr;
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dma_addr_t dma;
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} buffers[MAX_MEMORY_BUFFERS];
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} capture, playback;
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};
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static DEFINE_MUTEX(devices_mutex);
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static unsigned int devices_used;
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static struct usb_driver ua101_driver;
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static void abort_alsa_playback(struct ua101 *ua);
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static void abort_alsa_capture(struct ua101 *ua);
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static const char *usb_error_string(int err)
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{
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switch (err) {
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case -ENODEV:
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return "no device";
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case -ENOENT:
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return "endpoint not enabled";
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case -EPIPE:
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return "endpoint stalled";
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case -ENOSPC:
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return "not enough bandwidth";
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case -ESHUTDOWN:
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return "device disabled";
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case -EHOSTUNREACH:
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return "device suspended";
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case -EINVAL:
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case -EAGAIN:
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case -EFBIG:
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case -EMSGSIZE:
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return "internal error";
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default:
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return "unknown error";
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}
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}
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static void abort_usb_capture(struct ua101 *ua)
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{
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if (test_and_clear_bit(USB_CAPTURE_RUNNING, &ua->states)) {
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wake_up(&ua->alsa_capture_wait);
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wake_up(&ua->rate_feedback_wait);
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}
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}
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static void abort_usb_playback(struct ua101 *ua)
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{
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if (test_and_clear_bit(USB_PLAYBACK_RUNNING, &ua->states))
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wake_up(&ua->alsa_playback_wait);
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}
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static void playback_urb_complete(struct urb *usb_urb)
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{
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struct ua101_urb *urb = (struct ua101_urb *)usb_urb;
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struct ua101 *ua = urb->urb.context;
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unsigned long flags;
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if (unlikely(urb->urb.status == -ENOENT || /* unlinked */
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urb->urb.status == -ENODEV || /* device removed */
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urb->urb.status == -ECONNRESET || /* unlinked */
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urb->urb.status == -ESHUTDOWN)) { /* device disabled */
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abort_usb_playback(ua);
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abort_alsa_playback(ua);
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return;
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}
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if (test_bit(USB_PLAYBACK_RUNNING, &ua->states)) {
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/* append URB to FIFO */
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spin_lock_irqsave(&ua->lock, flags);
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list_add_tail(&urb->ready_list, &ua->ready_playback_urbs);
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if (ua->rate_feedback_count > 0)
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tasklet_schedule(&ua->playback_tasklet);
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ua->playback.substream->runtime->delay -=
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urb->urb.iso_frame_desc[0].length /
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ua->playback.frame_bytes;
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spin_unlock_irqrestore(&ua->lock, flags);
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}
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}
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static void first_playback_urb_complete(struct urb *urb)
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{
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struct ua101 *ua = urb->context;
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urb->complete = playback_urb_complete;
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playback_urb_complete(urb);
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set_bit(PLAYBACK_URB_COMPLETED, &ua->states);
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wake_up(&ua->alsa_playback_wait);
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}
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/* copy data from the ALSA ring buffer into the URB buffer */
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static bool copy_playback_data(struct ua101_stream *stream, struct urb *urb,
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unsigned int frames)
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{
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struct snd_pcm_runtime *runtime;
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unsigned int frame_bytes, frames1;
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const u8 *source;
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runtime = stream->substream->runtime;
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frame_bytes = stream->frame_bytes;
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source = runtime->dma_area + stream->buffer_pos * frame_bytes;
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if (stream->buffer_pos + frames <= runtime->buffer_size) {
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memcpy(urb->transfer_buffer, source, frames * frame_bytes);
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} else {
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/* wrap around at end of ring buffer */
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frames1 = runtime->buffer_size - stream->buffer_pos;
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memcpy(urb->transfer_buffer, source, frames1 * frame_bytes);
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memcpy(urb->transfer_buffer + frames1 * frame_bytes,
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runtime->dma_area, (frames - frames1) * frame_bytes);
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}
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stream->buffer_pos += frames;
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if (stream->buffer_pos >= runtime->buffer_size)
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stream->buffer_pos -= runtime->buffer_size;
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stream->period_pos += frames;
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if (stream->period_pos >= runtime->period_size) {
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stream->period_pos -= runtime->period_size;
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return true;
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}
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return false;
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}
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static inline void add_with_wraparound(struct ua101 *ua,
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unsigned int *value, unsigned int add)
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{
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*value += add;
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if (*value >= ua->playback.queue_length)
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*value -= ua->playback.queue_length;
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}
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static void playback_tasklet(unsigned long data)
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{
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struct ua101 *ua = (void *)data;
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unsigned long flags;
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unsigned int frames;
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struct ua101_urb *urb;
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bool do_period_elapsed = false;
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int err;
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if (unlikely(!test_bit(USB_PLAYBACK_RUNNING, &ua->states)))
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return;
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/*
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* Synchronizing the playback rate to the capture rate is done by using
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* the same sequence of packet sizes for both streams.
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* Submitting a playback URB therefore requires both a ready URB and
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* the size of the corresponding capture packet, i.e., both playback
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* and capture URBs must have been completed. Since the USB core does
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* not guarantee that playback and capture complete callbacks are
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* called alternately, we use two FIFOs for packet sizes and read URBs;
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* submitting playback URBs is possible as long as both FIFOs are
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* nonempty.
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*/
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spin_lock_irqsave(&ua->lock, flags);
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while (ua->rate_feedback_count > 0 &&
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!list_empty(&ua->ready_playback_urbs)) {
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/* take packet size out of FIFO */
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frames = ua->rate_feedback[ua->rate_feedback_start];
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add_with_wraparound(ua, &ua->rate_feedback_start, 1);
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ua->rate_feedback_count--;
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/* take URB out of FIFO */
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urb = list_first_entry(&ua->ready_playback_urbs,
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struct ua101_urb, ready_list);
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list_del(&urb->ready_list);
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/* fill packet with data or silence */
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urb->urb.iso_frame_desc[0].length =
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frames * ua->playback.frame_bytes;
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if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states))
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do_period_elapsed |= copy_playback_data(&ua->playback,
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&urb->urb,
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frames);
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else
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memset(urb->urb.transfer_buffer, 0,
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urb->urb.iso_frame_desc[0].length);
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/* and off you go ... */
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err = usb_submit_urb(&urb->urb, GFP_ATOMIC);
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if (unlikely(err < 0)) {
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spin_unlock_irqrestore(&ua->lock, flags);
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abort_usb_playback(ua);
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abort_alsa_playback(ua);
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dev_err(&ua->dev->dev, "USB request error %d: %s\n",
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err, usb_error_string(err));
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return;
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}
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ua->playback.substream->runtime->delay += frames;
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}
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spin_unlock_irqrestore(&ua->lock, flags);
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if (do_period_elapsed)
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snd_pcm_period_elapsed(ua->playback.substream);
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}
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/* copy data from the URB buffer into the ALSA ring buffer */
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static bool copy_capture_data(struct ua101_stream *stream, struct urb *urb,
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unsigned int frames)
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{
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struct snd_pcm_runtime *runtime;
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unsigned int frame_bytes, frames1;
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u8 *dest;
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runtime = stream->substream->runtime;
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frame_bytes = stream->frame_bytes;
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dest = runtime->dma_area + stream->buffer_pos * frame_bytes;
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if (stream->buffer_pos + frames <= runtime->buffer_size) {
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memcpy(dest, urb->transfer_buffer, frames * frame_bytes);
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} else {
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/* wrap around at end of ring buffer */
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frames1 = runtime->buffer_size - stream->buffer_pos;
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memcpy(dest, urb->transfer_buffer, frames1 * frame_bytes);
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memcpy(runtime->dma_area,
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urb->transfer_buffer + frames1 * frame_bytes,
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(frames - frames1) * frame_bytes);
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}
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stream->buffer_pos += frames;
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if (stream->buffer_pos >= runtime->buffer_size)
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stream->buffer_pos -= runtime->buffer_size;
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stream->period_pos += frames;
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if (stream->period_pos >= runtime->period_size) {
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stream->period_pos -= runtime->period_size;
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return true;
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}
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return false;
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}
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static void capture_urb_complete(struct urb *urb)
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{
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struct ua101 *ua = urb->context;
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struct ua101_stream *stream = &ua->capture;
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unsigned long flags;
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unsigned int frames, write_ptr;
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bool do_period_elapsed;
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int err;
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if (unlikely(urb->status == -ENOENT || /* unlinked */
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urb->status == -ENODEV || /* device removed */
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urb->status == -ECONNRESET || /* unlinked */
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urb->status == -ESHUTDOWN)) /* device disabled */
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goto stream_stopped;
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if (urb->status >= 0 && urb->iso_frame_desc[0].status >= 0)
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frames = urb->iso_frame_desc[0].actual_length /
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stream->frame_bytes;
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else
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frames = 0;
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spin_lock_irqsave(&ua->lock, flags);
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if (frames > 0 && test_bit(ALSA_CAPTURE_RUNNING, &ua->states))
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do_period_elapsed = copy_capture_data(stream, urb, frames);
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else
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do_period_elapsed = false;
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if (test_bit(USB_CAPTURE_RUNNING, &ua->states)) {
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err = usb_submit_urb(urb, GFP_ATOMIC);
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if (unlikely(err < 0)) {
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spin_unlock_irqrestore(&ua->lock, flags);
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dev_err(&ua->dev->dev, "USB request error %d: %s\n",
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err, usb_error_string(err));
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goto stream_stopped;
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}
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/* append packet size to FIFO */
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write_ptr = ua->rate_feedback_start;
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add_with_wraparound(ua, &write_ptr, ua->rate_feedback_count);
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ua->rate_feedback[write_ptr] = frames;
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if (ua->rate_feedback_count < ua->playback.queue_length) {
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ua->rate_feedback_count++;
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if (ua->rate_feedback_count ==
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ua->playback.queue_length)
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wake_up(&ua->rate_feedback_wait);
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} else {
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/*
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* Ring buffer overflow; this happens when the playback
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* stream is not running. Throw away the oldest entry,
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* so that the playback stream, when it starts, sees
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* the most recent packet sizes.
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*/
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add_with_wraparound(ua, &ua->rate_feedback_start, 1);
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}
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if (test_bit(USB_PLAYBACK_RUNNING, &ua->states) &&
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!list_empty(&ua->ready_playback_urbs))
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tasklet_schedule(&ua->playback_tasklet);
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}
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spin_unlock_irqrestore(&ua->lock, flags);
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if (do_period_elapsed)
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snd_pcm_period_elapsed(stream->substream);
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return;
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stream_stopped:
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abort_usb_playback(ua);
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abort_usb_capture(ua);
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abort_alsa_playback(ua);
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abort_alsa_capture(ua);
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}
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|
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static void first_capture_urb_complete(struct urb *urb)
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{
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struct ua101 *ua = urb->context;
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|
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urb->complete = capture_urb_complete;
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capture_urb_complete(urb);
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set_bit(CAPTURE_URB_COMPLETED, &ua->states);
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wake_up(&ua->alsa_capture_wait);
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}
|
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|
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static int submit_stream_urbs(struct ua101 *ua, struct ua101_stream *stream)
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{
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unsigned int i;
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for (i = 0; i < stream->queue_length; ++i) {
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int err = usb_submit_urb(&stream->urbs[i]->urb, GFP_KERNEL);
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if (err < 0) {
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dev_err(&ua->dev->dev, "USB request error %d: %s\n",
|
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err, usb_error_string(err));
|
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return err;
|
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}
|
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}
|
|
return 0;
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|
}
|
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|
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static void kill_stream_urbs(struct ua101_stream *stream)
|
|
{
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unsigned int i;
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|
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for (i = 0; i < stream->queue_length; ++i)
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if (stream->urbs[i])
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usb_kill_urb(&stream->urbs[i]->urb);
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}
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|
|
static int enable_iso_interface(struct ua101 *ua, unsigned int intf_index)
|
|
{
|
|
struct usb_host_interface *alts;
|
|
|
|
alts = ua->intf[intf_index]->cur_altsetting;
|
|
if (alts->desc.bAlternateSetting != 1) {
|
|
int err = usb_set_interface(ua->dev,
|
|
alts->desc.bInterfaceNumber, 1);
|
|
if (err < 0) {
|
|
dev_err(&ua->dev->dev,
|
|
"cannot initialize interface; error %d: %s\n",
|
|
err, usb_error_string(err));
|
|
return err;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void disable_iso_interface(struct ua101 *ua, unsigned int intf_index)
|
|
{
|
|
struct usb_host_interface *alts;
|
|
|
|
if (!ua->intf[intf_index])
|
|
return;
|
|
|
|
alts = ua->intf[intf_index]->cur_altsetting;
|
|
if (alts->desc.bAlternateSetting != 0) {
|
|
int err = usb_set_interface(ua->dev,
|
|
alts->desc.bInterfaceNumber, 0);
|
|
if (err < 0 && !test_bit(DISCONNECTED, &ua->states))
|
|
dev_warn(&ua->dev->dev,
|
|
"interface reset failed; error %d: %s\n",
|
|
err, usb_error_string(err));
|
|
}
|
|
}
|
|
|
|
static void stop_usb_capture(struct ua101 *ua)
|
|
{
|
|
clear_bit(USB_CAPTURE_RUNNING, &ua->states);
|
|
|
|
kill_stream_urbs(&ua->capture);
|
|
|
|
disable_iso_interface(ua, INTF_CAPTURE);
|
|
}
|
|
|
|
static int start_usb_capture(struct ua101 *ua)
|
|
{
|
|
int err;
|
|
|
|
if (test_bit(DISCONNECTED, &ua->states))
|
|
return -ENODEV;
|
|
|
|
if (test_bit(USB_CAPTURE_RUNNING, &ua->states))
|
|
return 0;
|
|
|
|
kill_stream_urbs(&ua->capture);
|
|
|
|
err = enable_iso_interface(ua, INTF_CAPTURE);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
clear_bit(CAPTURE_URB_COMPLETED, &ua->states);
|
|
ua->capture.urbs[0]->urb.complete = first_capture_urb_complete;
|
|
ua->rate_feedback_start = 0;
|
|
ua->rate_feedback_count = 0;
|
|
|
|
set_bit(USB_CAPTURE_RUNNING, &ua->states);
|
|
err = submit_stream_urbs(ua, &ua->capture);
|
|
if (err < 0)
|
|
stop_usb_capture(ua);
|
|
return err;
|
|
}
|
|
|
|
static void stop_usb_playback(struct ua101 *ua)
|
|
{
|
|
clear_bit(USB_PLAYBACK_RUNNING, &ua->states);
|
|
|
|
kill_stream_urbs(&ua->playback);
|
|
|
|
tasklet_kill(&ua->playback_tasklet);
|
|
|
|
disable_iso_interface(ua, INTF_PLAYBACK);
|
|
}
|
|
|
|
static int start_usb_playback(struct ua101 *ua)
|
|
{
|
|
unsigned int i, frames;
|
|
struct urb *urb;
|
|
int err = 0;
|
|
|
|
if (test_bit(DISCONNECTED, &ua->states))
|
|
return -ENODEV;
|
|
|
|
if (test_bit(USB_PLAYBACK_RUNNING, &ua->states))
|
|
return 0;
|
|
|
|
kill_stream_urbs(&ua->playback);
|
|
tasklet_kill(&ua->playback_tasklet);
|
|
|
|
err = enable_iso_interface(ua, INTF_PLAYBACK);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
clear_bit(PLAYBACK_URB_COMPLETED, &ua->states);
|
|
ua->playback.urbs[0]->urb.complete =
|
|
first_playback_urb_complete;
|
|
spin_lock_irq(&ua->lock);
|
|
INIT_LIST_HEAD(&ua->ready_playback_urbs);
|
|
spin_unlock_irq(&ua->lock);
|
|
|
|
/*
|
|
* We submit the initial URBs all at once, so we have to wait for the
|
|
* packet size FIFO to be full.
|
|
*/
|
|
wait_event(ua->rate_feedback_wait,
|
|
ua->rate_feedback_count >= ua->playback.queue_length ||
|
|
!test_bit(USB_CAPTURE_RUNNING, &ua->states) ||
|
|
test_bit(DISCONNECTED, &ua->states));
|
|
if (test_bit(DISCONNECTED, &ua->states)) {
|
|
stop_usb_playback(ua);
|
|
return -ENODEV;
|
|
}
|
|
if (!test_bit(USB_CAPTURE_RUNNING, &ua->states)) {
|
|
stop_usb_playback(ua);
|
|
return -EIO;
|
|
}
|
|
|
|
for (i = 0; i < ua->playback.queue_length; ++i) {
|
|
/* all initial URBs contain silence */
|
|
spin_lock_irq(&ua->lock);
|
|
frames = ua->rate_feedback[ua->rate_feedback_start];
|
|
add_with_wraparound(ua, &ua->rate_feedback_start, 1);
|
|
ua->rate_feedback_count--;
|
|
spin_unlock_irq(&ua->lock);
|
|
urb = &ua->playback.urbs[i]->urb;
|
|
urb->iso_frame_desc[0].length =
|
|
frames * ua->playback.frame_bytes;
|
|
memset(urb->transfer_buffer, 0,
|
|
urb->iso_frame_desc[0].length);
|
|
}
|
|
|
|
set_bit(USB_PLAYBACK_RUNNING, &ua->states);
|
|
err = submit_stream_urbs(ua, &ua->playback);
|
|
if (err < 0)
|
|
stop_usb_playback(ua);
|
|
return err;
|
|
}
|
|
|
|
static void abort_alsa_capture(struct ua101 *ua)
|
|
{
|
|
if (test_bit(ALSA_CAPTURE_RUNNING, &ua->states))
|
|
snd_pcm_stop(ua->capture.substream, SNDRV_PCM_STATE_XRUN);
|
|
}
|
|
|
|
static void abort_alsa_playback(struct ua101 *ua)
|
|
{
|
|
if (test_bit(ALSA_PLAYBACK_RUNNING, &ua->states))
|
|
snd_pcm_stop(ua->playback.substream, SNDRV_PCM_STATE_XRUN);
|
|
}
|
|
|
|
static int set_stream_hw(struct ua101 *ua, struct snd_pcm_substream *substream,
|
|
unsigned int channels)
|
|
{
|
|
int err;
|
|
|
|
substream->runtime->hw.info =
|
|
SNDRV_PCM_INFO_MMAP |
|
|
SNDRV_PCM_INFO_MMAP_VALID |
|
|
SNDRV_PCM_INFO_BATCH |
|
|
SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_BLOCK_TRANSFER |
|
|
SNDRV_PCM_INFO_FIFO_IN_FRAMES;
|
|
substream->runtime->hw.formats = ua->format_bit;
|
|
substream->runtime->hw.rates = snd_pcm_rate_to_rate_bit(ua->rate);
|
|
substream->runtime->hw.rate_min = ua->rate;
|
|
substream->runtime->hw.rate_max = ua->rate;
|
|
substream->runtime->hw.channels_min = channels;
|
|
substream->runtime->hw.channels_max = channels;
|
|
substream->runtime->hw.buffer_bytes_max = 45000 * 1024;
|
|
substream->runtime->hw.period_bytes_min = 1;
|
|
substream->runtime->hw.period_bytes_max = UINT_MAX;
|
|
substream->runtime->hw.periods_min = 2;
|
|
substream->runtime->hw.periods_max = UINT_MAX;
|
|
err = snd_pcm_hw_constraint_minmax(substream->runtime,
|
|
SNDRV_PCM_HW_PARAM_PERIOD_TIME,
|
|
1500000 / ua->packets_per_second,
|
|
UINT_MAX);
|
|
if (err < 0)
|
|
return err;
|
|
err = snd_pcm_hw_constraint_msbits(substream->runtime, 0, 32, 24);
|
|
return err;
|
|
}
|
|
|
|
static int capture_pcm_open(struct snd_pcm_substream *substream)
|
|
{
|
|
struct ua101 *ua = substream->private_data;
|
|
int err;
|
|
|
|
ua->capture.substream = substream;
|
|
err = set_stream_hw(ua, substream, ua->capture.channels);
|
|
if (err < 0)
|
|
return err;
|
|
substream->runtime->hw.fifo_size =
|
|
DIV_ROUND_CLOSEST(ua->rate, ua->packets_per_second);
|
|
substream->runtime->delay = substream->runtime->hw.fifo_size;
|
|
|
|
mutex_lock(&ua->mutex);
|
|
err = start_usb_capture(ua);
|
|
if (err >= 0)
|
|
set_bit(ALSA_CAPTURE_OPEN, &ua->states);
|
|
mutex_unlock(&ua->mutex);
|
|
return err;
|
|
}
|
|
|
|
static int playback_pcm_open(struct snd_pcm_substream *substream)
|
|
{
|
|
struct ua101 *ua = substream->private_data;
|
|
int err;
|
|
|
|
ua->playback.substream = substream;
|
|
err = set_stream_hw(ua, substream, ua->playback.channels);
|
|
if (err < 0)
|
|
return err;
|
|
substream->runtime->hw.fifo_size =
|
|
DIV_ROUND_CLOSEST(ua->rate * ua->playback.queue_length,
|
|
ua->packets_per_second);
|
|
|
|
mutex_lock(&ua->mutex);
|
|
err = start_usb_capture(ua);
|
|
if (err < 0)
|
|
goto error;
|
|
err = start_usb_playback(ua);
|
|
if (err < 0) {
|
|
if (!test_bit(ALSA_CAPTURE_OPEN, &ua->states))
|
|
stop_usb_capture(ua);
|
|
goto error;
|
|
}
|
|
set_bit(ALSA_PLAYBACK_OPEN, &ua->states);
|
|
error:
|
|
mutex_unlock(&ua->mutex);
|
|
return err;
|
|
}
|
|
|
|
static int capture_pcm_close(struct snd_pcm_substream *substream)
|
|
{
|
|
struct ua101 *ua = substream->private_data;
|
|
|
|
mutex_lock(&ua->mutex);
|
|
clear_bit(ALSA_CAPTURE_OPEN, &ua->states);
|
|
if (!test_bit(ALSA_PLAYBACK_OPEN, &ua->states))
|
|
stop_usb_capture(ua);
|
|
mutex_unlock(&ua->mutex);
|
|
return 0;
|
|
}
|
|
|
|
static int playback_pcm_close(struct snd_pcm_substream *substream)
|
|
{
|
|
struct ua101 *ua = substream->private_data;
|
|
|
|
mutex_lock(&ua->mutex);
|
|
stop_usb_playback(ua);
|
|
clear_bit(ALSA_PLAYBACK_OPEN, &ua->states);
|
|
if (!test_bit(ALSA_CAPTURE_OPEN, &ua->states))
|
|
stop_usb_capture(ua);
|
|
mutex_unlock(&ua->mutex);
|
|
return 0;
|
|
}
|
|
|
|
static int capture_pcm_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *hw_params)
|
|
{
|
|
struct ua101 *ua = substream->private_data;
|
|
int err;
|
|
|
|
mutex_lock(&ua->mutex);
|
|
err = start_usb_capture(ua);
|
|
mutex_unlock(&ua->mutex);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return snd_pcm_lib_alloc_vmalloc_buffer(substream,
|
|
params_buffer_bytes(hw_params));
|
|
}
|
|
|
|
static int playback_pcm_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *hw_params)
|
|
{
|
|
struct ua101 *ua = substream->private_data;
|
|
int err;
|
|
|
|
mutex_lock(&ua->mutex);
|
|
err = start_usb_capture(ua);
|
|
if (err >= 0)
|
|
err = start_usb_playback(ua);
|
|
mutex_unlock(&ua->mutex);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
return snd_pcm_lib_alloc_vmalloc_buffer(substream,
|
|
params_buffer_bytes(hw_params));
|
|
}
|
|
|
|
static int ua101_pcm_hw_free(struct snd_pcm_substream *substream)
|
|
{
|
|
return snd_pcm_lib_free_vmalloc_buffer(substream);
|
|
}
|
|
|
|
static int capture_pcm_prepare(struct snd_pcm_substream *substream)
|
|
{
|
|
struct ua101 *ua = substream->private_data;
|
|
int err;
|
|
|
|
mutex_lock(&ua->mutex);
|
|
err = start_usb_capture(ua);
|
|
mutex_unlock(&ua->mutex);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/*
|
|
* The EHCI driver schedules the first packet of an iso stream at 10 ms
|
|
* in the future, i.e., no data is actually captured for that long.
|
|
* Take the wait here so that the stream is known to be actually
|
|
* running when the start trigger has been called.
|
|
*/
|
|
wait_event(ua->alsa_capture_wait,
|
|
test_bit(CAPTURE_URB_COMPLETED, &ua->states) ||
|
|
!test_bit(USB_CAPTURE_RUNNING, &ua->states));
|
|
if (test_bit(DISCONNECTED, &ua->states))
|
|
return -ENODEV;
|
|
if (!test_bit(USB_CAPTURE_RUNNING, &ua->states))
|
|
return -EIO;
|
|
|
|
ua->capture.period_pos = 0;
|
|
ua->capture.buffer_pos = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int playback_pcm_prepare(struct snd_pcm_substream *substream)
|
|
{
|
|
struct ua101 *ua = substream->private_data;
|
|
int err;
|
|
|
|
mutex_lock(&ua->mutex);
|
|
err = start_usb_capture(ua);
|
|
if (err >= 0)
|
|
err = start_usb_playback(ua);
|
|
mutex_unlock(&ua->mutex);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
/* see the comment in capture_pcm_prepare() */
|
|
wait_event(ua->alsa_playback_wait,
|
|
test_bit(PLAYBACK_URB_COMPLETED, &ua->states) ||
|
|
!test_bit(USB_PLAYBACK_RUNNING, &ua->states));
|
|
if (test_bit(DISCONNECTED, &ua->states))
|
|
return -ENODEV;
|
|
if (!test_bit(USB_PLAYBACK_RUNNING, &ua->states))
|
|
return -EIO;
|
|
|
|
substream->runtime->delay = 0;
|
|
ua->playback.period_pos = 0;
|
|
ua->playback.buffer_pos = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int capture_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
|
|
{
|
|
struct ua101 *ua = substream->private_data;
|
|
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
if (!test_bit(USB_CAPTURE_RUNNING, &ua->states))
|
|
return -EIO;
|
|
set_bit(ALSA_CAPTURE_RUNNING, &ua->states);
|
|
return 0;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
clear_bit(ALSA_CAPTURE_RUNNING, &ua->states);
|
|
return 0;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int playback_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
|
|
{
|
|
struct ua101 *ua = substream->private_data;
|
|
|
|
switch (cmd) {
|
|
case SNDRV_PCM_TRIGGER_START:
|
|
if (!test_bit(USB_PLAYBACK_RUNNING, &ua->states))
|
|
return -EIO;
|
|
set_bit(ALSA_PLAYBACK_RUNNING, &ua->states);
|
|
return 0;
|
|
case SNDRV_PCM_TRIGGER_STOP:
|
|
clear_bit(ALSA_PLAYBACK_RUNNING, &ua->states);
|
|
return 0;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static inline snd_pcm_uframes_t ua101_pcm_pointer(struct ua101 *ua,
|
|
struct ua101_stream *stream)
|
|
{
|
|
unsigned long flags;
|
|
unsigned int pos;
|
|
|
|
spin_lock_irqsave(&ua->lock, flags);
|
|
pos = stream->buffer_pos;
|
|
spin_unlock_irqrestore(&ua->lock, flags);
|
|
return pos;
|
|
}
|
|
|
|
static snd_pcm_uframes_t capture_pcm_pointer(struct snd_pcm_substream *subs)
|
|
{
|
|
struct ua101 *ua = subs->private_data;
|
|
|
|
return ua101_pcm_pointer(ua, &ua->capture);
|
|
}
|
|
|
|
static snd_pcm_uframes_t playback_pcm_pointer(struct snd_pcm_substream *subs)
|
|
{
|
|
struct ua101 *ua = subs->private_data;
|
|
|
|
return ua101_pcm_pointer(ua, &ua->playback);
|
|
}
|
|
|
|
static struct snd_pcm_ops capture_pcm_ops = {
|
|
.open = capture_pcm_open,
|
|
.close = capture_pcm_close,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
.hw_params = capture_pcm_hw_params,
|
|
.hw_free = ua101_pcm_hw_free,
|
|
.prepare = capture_pcm_prepare,
|
|
.trigger = capture_pcm_trigger,
|
|
.pointer = capture_pcm_pointer,
|
|
.page = snd_pcm_lib_get_vmalloc_page,
|
|
.mmap = snd_pcm_lib_mmap_vmalloc,
|
|
};
|
|
|
|
static struct snd_pcm_ops playback_pcm_ops = {
|
|
.open = playback_pcm_open,
|
|
.close = playback_pcm_close,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
.hw_params = playback_pcm_hw_params,
|
|
.hw_free = ua101_pcm_hw_free,
|
|
.prepare = playback_pcm_prepare,
|
|
.trigger = playback_pcm_trigger,
|
|
.pointer = playback_pcm_pointer,
|
|
.page = snd_pcm_lib_get_vmalloc_page,
|
|
.mmap = snd_pcm_lib_mmap_vmalloc,
|
|
};
|
|
|
|
static const struct uac_format_type_i_discrete_descriptor *
|
|
find_format_descriptor(struct usb_interface *interface)
|
|
{
|
|
struct usb_host_interface *alt;
|
|
u8 *extra;
|
|
int extralen;
|
|
|
|
if (interface->num_altsetting != 2) {
|
|
dev_err(&interface->dev, "invalid num_altsetting\n");
|
|
return NULL;
|
|
}
|
|
|
|
alt = &interface->altsetting[0];
|
|
if (alt->desc.bNumEndpoints != 0) {
|
|
dev_err(&interface->dev, "invalid bNumEndpoints\n");
|
|
return NULL;
|
|
}
|
|
|
|
alt = &interface->altsetting[1];
|
|
if (alt->desc.bNumEndpoints != 1) {
|
|
dev_err(&interface->dev, "invalid bNumEndpoints\n");
|
|
return NULL;
|
|
}
|
|
|
|
extra = alt->extra;
|
|
extralen = alt->extralen;
|
|
while (extralen >= sizeof(struct usb_descriptor_header)) {
|
|
struct uac_format_type_i_discrete_descriptor *desc;
|
|
|
|
desc = (struct uac_format_type_i_discrete_descriptor *)extra;
|
|
if (desc->bLength > extralen) {
|
|
dev_err(&interface->dev, "descriptor overflow\n");
|
|
return NULL;
|
|
}
|
|
if (desc->bLength == UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(1) &&
|
|
desc->bDescriptorType == USB_DT_CS_INTERFACE &&
|
|
desc->bDescriptorSubtype == UAC_FORMAT_TYPE) {
|
|
if (desc->bFormatType != UAC_FORMAT_TYPE_I_PCM ||
|
|
desc->bSamFreqType != 1) {
|
|
dev_err(&interface->dev,
|
|
"invalid format type\n");
|
|
return NULL;
|
|
}
|
|
return desc;
|
|
}
|
|
extralen -= desc->bLength;
|
|
extra += desc->bLength;
|
|
}
|
|
dev_err(&interface->dev, "sample format descriptor not found\n");
|
|
return NULL;
|
|
}
|
|
|
|
static int detect_usb_format(struct ua101 *ua)
|
|
{
|
|
const struct uac_format_type_i_discrete_descriptor *fmt_capture;
|
|
const struct uac_format_type_i_discrete_descriptor *fmt_playback;
|
|
const struct usb_endpoint_descriptor *epd;
|
|
unsigned int rate2;
|
|
|
|
fmt_capture = find_format_descriptor(ua->intf[INTF_CAPTURE]);
|
|
fmt_playback = find_format_descriptor(ua->intf[INTF_PLAYBACK]);
|
|
if (!fmt_capture || !fmt_playback)
|
|
return -ENXIO;
|
|
|
|
switch (fmt_capture->bSubframeSize) {
|
|
case 3:
|
|
ua->format_bit = SNDRV_PCM_FMTBIT_S24_3LE;
|
|
break;
|
|
case 4:
|
|
ua->format_bit = SNDRV_PCM_FMTBIT_S32_LE;
|
|
break;
|
|
default:
|
|
dev_err(&ua->dev->dev, "sample width is not 24 or 32 bits\n");
|
|
return -ENXIO;
|
|
}
|
|
if (fmt_capture->bSubframeSize != fmt_playback->bSubframeSize) {
|
|
dev_err(&ua->dev->dev,
|
|
"playback/capture sample widths do not match\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
if (fmt_capture->bBitResolution != 24 ||
|
|
fmt_playback->bBitResolution != 24) {
|
|
dev_err(&ua->dev->dev, "sample width is not 24 bits\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
ua->rate = combine_triple(fmt_capture->tSamFreq[0]);
|
|
rate2 = combine_triple(fmt_playback->tSamFreq[0]);
|
|
if (ua->rate != rate2) {
|
|
dev_err(&ua->dev->dev,
|
|
"playback/capture rates do not match: %u/%u\n",
|
|
rate2, ua->rate);
|
|
return -ENXIO;
|
|
}
|
|
|
|
switch (ua->dev->speed) {
|
|
case USB_SPEED_FULL:
|
|
ua->packets_per_second = 1000;
|
|
break;
|
|
case USB_SPEED_HIGH:
|
|
ua->packets_per_second = 8000;
|
|
break;
|
|
default:
|
|
dev_err(&ua->dev->dev, "unknown device speed\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
ua->capture.channels = fmt_capture->bNrChannels;
|
|
ua->playback.channels = fmt_playback->bNrChannels;
|
|
ua->capture.frame_bytes =
|
|
fmt_capture->bSubframeSize * ua->capture.channels;
|
|
ua->playback.frame_bytes =
|
|
fmt_playback->bSubframeSize * ua->playback.channels;
|
|
|
|
epd = &ua->intf[INTF_CAPTURE]->altsetting[1].endpoint[0].desc;
|
|
if (!usb_endpoint_is_isoc_in(epd)) {
|
|
dev_err(&ua->dev->dev, "invalid capture endpoint\n");
|
|
return -ENXIO;
|
|
}
|
|
ua->capture.usb_pipe = usb_rcvisocpipe(ua->dev, usb_endpoint_num(epd));
|
|
ua->capture.max_packet_bytes = le16_to_cpu(epd->wMaxPacketSize);
|
|
|
|
epd = &ua->intf[INTF_PLAYBACK]->altsetting[1].endpoint[0].desc;
|
|
if (!usb_endpoint_is_isoc_out(epd)) {
|
|
dev_err(&ua->dev->dev, "invalid playback endpoint\n");
|
|
return -ENXIO;
|
|
}
|
|
ua->playback.usb_pipe = usb_sndisocpipe(ua->dev, usb_endpoint_num(epd));
|
|
ua->playback.max_packet_bytes = le16_to_cpu(epd->wMaxPacketSize);
|
|
return 0;
|
|
}
|
|
|
|
static int alloc_stream_buffers(struct ua101 *ua, struct ua101_stream *stream)
|
|
{
|
|
unsigned int remaining_packets, packets, packets_per_page, i;
|
|
size_t size;
|
|
|
|
stream->queue_length = queue_length;
|
|
stream->queue_length = max(stream->queue_length,
|
|
(unsigned int)MIN_QUEUE_LENGTH);
|
|
stream->queue_length = min(stream->queue_length,
|
|
(unsigned int)MAX_QUEUE_LENGTH);
|
|
|
|
/*
|
|
* The cache pool sizes used by usb_alloc_coherent() (128, 512, 2048) are
|
|
* quite bad when used with the packet sizes of this device (e.g. 280,
|
|
* 520, 624). Therefore, we allocate and subdivide entire pages, using
|
|
* a smaller buffer only for the last chunk.
|
|
*/
|
|
remaining_packets = stream->queue_length;
|
|
packets_per_page = PAGE_SIZE / stream->max_packet_bytes;
|
|
for (i = 0; i < ARRAY_SIZE(stream->buffers); ++i) {
|
|
packets = min(remaining_packets, packets_per_page);
|
|
size = packets * stream->max_packet_bytes;
|
|
stream->buffers[i].addr =
|
|
usb_alloc_coherent(ua->dev, size, GFP_KERNEL,
|
|
&stream->buffers[i].dma);
|
|
if (!stream->buffers[i].addr)
|
|
return -ENOMEM;
|
|
stream->buffers[i].size = size;
|
|
remaining_packets -= packets;
|
|
if (!remaining_packets)
|
|
break;
|
|
}
|
|
if (remaining_packets) {
|
|
dev_err(&ua->dev->dev, "too many packets\n");
|
|
return -ENXIO;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void free_stream_buffers(struct ua101 *ua, struct ua101_stream *stream)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(stream->buffers); ++i)
|
|
usb_free_coherent(ua->dev,
|
|
stream->buffers[i].size,
|
|
stream->buffers[i].addr,
|
|
stream->buffers[i].dma);
|
|
}
|
|
|
|
static int alloc_stream_urbs(struct ua101 *ua, struct ua101_stream *stream,
|
|
void (*urb_complete)(struct urb *))
|
|
{
|
|
unsigned max_packet_size = stream->max_packet_bytes;
|
|
struct ua101_urb *urb;
|
|
unsigned int b, u = 0;
|
|
|
|
for (b = 0; b < ARRAY_SIZE(stream->buffers); ++b) {
|
|
unsigned int size = stream->buffers[b].size;
|
|
u8 *addr = stream->buffers[b].addr;
|
|
dma_addr_t dma = stream->buffers[b].dma;
|
|
|
|
while (size >= max_packet_size) {
|
|
if (u >= stream->queue_length)
|
|
goto bufsize_error;
|
|
urb = kmalloc(sizeof(*urb), GFP_KERNEL);
|
|
if (!urb)
|
|
return -ENOMEM;
|
|
usb_init_urb(&urb->urb);
|
|
urb->urb.dev = ua->dev;
|
|
urb->urb.pipe = stream->usb_pipe;
|
|
urb->urb.transfer_flags = URB_ISO_ASAP |
|
|
URB_NO_TRANSFER_DMA_MAP;
|
|
urb->urb.transfer_buffer = addr;
|
|
urb->urb.transfer_dma = dma;
|
|
urb->urb.transfer_buffer_length = max_packet_size;
|
|
urb->urb.number_of_packets = 1;
|
|
urb->urb.interval = 1;
|
|
urb->urb.context = ua;
|
|
urb->urb.complete = urb_complete;
|
|
urb->urb.iso_frame_desc[0].offset = 0;
|
|
urb->urb.iso_frame_desc[0].length = max_packet_size;
|
|
stream->urbs[u++] = urb;
|
|
size -= max_packet_size;
|
|
addr += max_packet_size;
|
|
dma += max_packet_size;
|
|
}
|
|
}
|
|
if (u == stream->queue_length)
|
|
return 0;
|
|
bufsize_error:
|
|
dev_err(&ua->dev->dev, "internal buffer size error\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
static void free_stream_urbs(struct ua101_stream *stream)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < stream->queue_length; ++i) {
|
|
kfree(stream->urbs[i]);
|
|
stream->urbs[i] = NULL;
|
|
}
|
|
}
|
|
|
|
static void free_usb_related_resources(struct ua101 *ua,
|
|
struct usb_interface *interface)
|
|
{
|
|
unsigned int i;
|
|
struct usb_interface *intf;
|
|
|
|
mutex_lock(&ua->mutex);
|
|
free_stream_urbs(&ua->capture);
|
|
free_stream_urbs(&ua->playback);
|
|
mutex_unlock(&ua->mutex);
|
|
free_stream_buffers(ua, &ua->capture);
|
|
free_stream_buffers(ua, &ua->playback);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(ua->intf); ++i) {
|
|
mutex_lock(&ua->mutex);
|
|
intf = ua->intf[i];
|
|
ua->intf[i] = NULL;
|
|
mutex_unlock(&ua->mutex);
|
|
if (intf) {
|
|
usb_set_intfdata(intf, NULL);
|
|
if (intf != interface)
|
|
usb_driver_release_interface(&ua101_driver,
|
|
intf);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void ua101_card_free(struct snd_card *card)
|
|
{
|
|
struct ua101 *ua = card->private_data;
|
|
|
|
mutex_destroy(&ua->mutex);
|
|
}
|
|
|
|
static int ua101_probe(struct usb_interface *interface,
|
|
const struct usb_device_id *usb_id)
|
|
{
|
|
static const struct snd_usb_midi_endpoint_info midi_ep = {
|
|
.out_cables = 0x0001,
|
|
.in_cables = 0x0001
|
|
};
|
|
static const struct snd_usb_audio_quirk midi_quirk = {
|
|
.type = QUIRK_MIDI_FIXED_ENDPOINT,
|
|
.data = &midi_ep
|
|
};
|
|
static const int intf_numbers[2][3] = {
|
|
{ /* UA-101 */
|
|
[INTF_PLAYBACK] = 0,
|
|
[INTF_CAPTURE] = 1,
|
|
[INTF_MIDI] = 2,
|
|
},
|
|
{ /* UA-1000 */
|
|
[INTF_CAPTURE] = 1,
|
|
[INTF_PLAYBACK] = 2,
|
|
[INTF_MIDI] = 3,
|
|
},
|
|
};
|
|
struct snd_card *card;
|
|
struct ua101 *ua;
|
|
unsigned int card_index, i;
|
|
int is_ua1000;
|
|
const char *name;
|
|
char usb_path[32];
|
|
int err;
|
|
|
|
is_ua1000 = usb_id->idProduct == 0x0044;
|
|
|
|
if (interface->altsetting->desc.bInterfaceNumber !=
|
|
intf_numbers[is_ua1000][0])
|
|
return -ENODEV;
|
|
|
|
mutex_lock(&devices_mutex);
|
|
|
|
for (card_index = 0; card_index < SNDRV_CARDS; ++card_index)
|
|
if (enable[card_index] && !(devices_used & (1 << card_index)))
|
|
break;
|
|
if (card_index >= SNDRV_CARDS) {
|
|
mutex_unlock(&devices_mutex);
|
|
return -ENOENT;
|
|
}
|
|
err = snd_card_create(index[card_index], id[card_index], THIS_MODULE,
|
|
sizeof(*ua), &card);
|
|
if (err < 0) {
|
|
mutex_unlock(&devices_mutex);
|
|
return err;
|
|
}
|
|
card->private_free = ua101_card_free;
|
|
ua = card->private_data;
|
|
ua->dev = interface_to_usbdev(interface);
|
|
ua->card = card;
|
|
ua->card_index = card_index;
|
|
INIT_LIST_HEAD(&ua->midi_list);
|
|
spin_lock_init(&ua->lock);
|
|
mutex_init(&ua->mutex);
|
|
INIT_LIST_HEAD(&ua->ready_playback_urbs);
|
|
tasklet_init(&ua->playback_tasklet,
|
|
playback_tasklet, (unsigned long)ua);
|
|
init_waitqueue_head(&ua->alsa_capture_wait);
|
|
init_waitqueue_head(&ua->rate_feedback_wait);
|
|
init_waitqueue_head(&ua->alsa_playback_wait);
|
|
|
|
ua->intf[0] = interface;
|
|
for (i = 1; i < ARRAY_SIZE(ua->intf); ++i) {
|
|
ua->intf[i] = usb_ifnum_to_if(ua->dev,
|
|
intf_numbers[is_ua1000][i]);
|
|
if (!ua->intf[i]) {
|
|
dev_err(&ua->dev->dev, "interface %u not found\n",
|
|
intf_numbers[is_ua1000][i]);
|
|
err = -ENXIO;
|
|
goto probe_error;
|
|
}
|
|
err = usb_driver_claim_interface(&ua101_driver,
|
|
ua->intf[i], ua);
|
|
if (err < 0) {
|
|
ua->intf[i] = NULL;
|
|
err = -EBUSY;
|
|
goto probe_error;
|
|
}
|
|
}
|
|
|
|
snd_card_set_dev(card, &interface->dev);
|
|
|
|
err = detect_usb_format(ua);
|
|
if (err < 0)
|
|
goto probe_error;
|
|
|
|
name = usb_id->idProduct == 0x0044 ? "UA-1000" : "UA-101";
|
|
strcpy(card->driver, "UA-101");
|
|
strcpy(card->shortname, name);
|
|
usb_make_path(ua->dev, usb_path, sizeof(usb_path));
|
|
snprintf(ua->card->longname, sizeof(ua->card->longname),
|
|
"EDIROL %s (serial %s), %u Hz at %s, %s speed", name,
|
|
ua->dev->serial ? ua->dev->serial : "?", ua->rate, usb_path,
|
|
ua->dev->speed == USB_SPEED_HIGH ? "high" : "full");
|
|
|
|
err = alloc_stream_buffers(ua, &ua->capture);
|
|
if (err < 0)
|
|
goto probe_error;
|
|
err = alloc_stream_buffers(ua, &ua->playback);
|
|
if (err < 0)
|
|
goto probe_error;
|
|
|
|
err = alloc_stream_urbs(ua, &ua->capture, capture_urb_complete);
|
|
if (err < 0)
|
|
goto probe_error;
|
|
err = alloc_stream_urbs(ua, &ua->playback, playback_urb_complete);
|
|
if (err < 0)
|
|
goto probe_error;
|
|
|
|
err = snd_pcm_new(card, name, 0, 1, 1, &ua->pcm);
|
|
if (err < 0)
|
|
goto probe_error;
|
|
ua->pcm->private_data = ua;
|
|
strcpy(ua->pcm->name, name);
|
|
snd_pcm_set_ops(ua->pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_pcm_ops);
|
|
snd_pcm_set_ops(ua->pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_pcm_ops);
|
|
|
|
err = snd_usbmidi_create(card, ua->intf[INTF_MIDI],
|
|
&ua->midi_list, &midi_quirk);
|
|
if (err < 0)
|
|
goto probe_error;
|
|
|
|
err = snd_card_register(card);
|
|
if (err < 0)
|
|
goto probe_error;
|
|
|
|
usb_set_intfdata(interface, ua);
|
|
devices_used |= 1 << card_index;
|
|
|
|
mutex_unlock(&devices_mutex);
|
|
return 0;
|
|
|
|
probe_error:
|
|
free_usb_related_resources(ua, interface);
|
|
snd_card_free(card);
|
|
mutex_unlock(&devices_mutex);
|
|
return err;
|
|
}
|
|
|
|
static void ua101_disconnect(struct usb_interface *interface)
|
|
{
|
|
struct ua101 *ua = usb_get_intfdata(interface);
|
|
struct list_head *midi;
|
|
|
|
if (!ua)
|
|
return;
|
|
|
|
mutex_lock(&devices_mutex);
|
|
|
|
set_bit(DISCONNECTED, &ua->states);
|
|
wake_up(&ua->rate_feedback_wait);
|
|
|
|
/* make sure that userspace cannot create new requests */
|
|
snd_card_disconnect(ua->card);
|
|
|
|
/* make sure that there are no pending USB requests */
|
|
__list_for_each(midi, &ua->midi_list)
|
|
snd_usbmidi_disconnect(midi);
|
|
abort_alsa_playback(ua);
|
|
abort_alsa_capture(ua);
|
|
mutex_lock(&ua->mutex);
|
|
stop_usb_playback(ua);
|
|
stop_usb_capture(ua);
|
|
mutex_unlock(&ua->mutex);
|
|
|
|
free_usb_related_resources(ua, interface);
|
|
|
|
devices_used &= ~(1 << ua->card_index);
|
|
|
|
snd_card_free_when_closed(ua->card);
|
|
|
|
mutex_unlock(&devices_mutex);
|
|
}
|
|
|
|
static struct usb_device_id ua101_ids[] = {
|
|
{ USB_DEVICE(0x0582, 0x0044) }, /* UA-1000 high speed */
|
|
{ USB_DEVICE(0x0582, 0x007d) }, /* UA-101 high speed */
|
|
{ USB_DEVICE(0x0582, 0x008d) }, /* UA-101 full speed */
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(usb, ua101_ids);
|
|
|
|
static struct usb_driver ua101_driver = {
|
|
.name = "snd-ua101",
|
|
.id_table = ua101_ids,
|
|
.probe = ua101_probe,
|
|
.disconnect = ua101_disconnect,
|
|
#if 0
|
|
.suspend = ua101_suspend,
|
|
.resume = ua101_resume,
|
|
#endif
|
|
};
|
|
|
|
module_usb_driver(ua101_driver);
|