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xianfeng |
/*
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* usbmidi.c - ALSA USB MIDI driver
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*
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* Copyright (c) 2002-2007 Clemens Ladisch
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* All rights reserved.
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*
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* Based on the OSS usb-midi driver by NAGANO Daisuke,
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* NetBSD's umidi driver by Takuya SHIOZAKI,
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* the "USB Device Class Definition for MIDI Devices" by Roland
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed and/or modified under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option) any later
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* version.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sound/driver.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/bitops.h>
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#include <linux/interrupt.h>
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#include <linux/spinlock.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/timer.h>
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#include <linux/usb.h>
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#include <sound/core.h>
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#include <sound/rawmidi.h>
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#include <sound/asequencer.h>
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#include "usbaudio.h"
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/*
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* define this to log all USB packets
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*/
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/* #define DUMP_PACKETS */
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/*
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* how long to wait after some USB errors, so that khubd can disconnect() us
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* without too many spurious errors
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*/
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#define ERROR_DELAY_JIFFIES (HZ / 10)
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MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
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MODULE_DESCRIPTION("USB Audio/MIDI helper module");
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MODULE_LICENSE("Dual BSD/GPL");
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struct usb_ms_header_descriptor {
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__u8 bLength;
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__u8 bDescriptorType;
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__u8 bDescriptorSubtype;
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__u8 bcdMSC[2];
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__le16 wTotalLength;
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} __attribute__ ((packed));
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struct usb_ms_endpoint_descriptor {
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__u8 bLength;
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__u8 bDescriptorType;
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__u8 bDescriptorSubtype;
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__u8 bNumEmbMIDIJack;
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__u8 baAssocJackID[0];
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} __attribute__ ((packed));
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struct snd_usb_midi_in_endpoint;
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struct snd_usb_midi_out_endpoint;
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struct snd_usb_midi_endpoint;
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struct usb_protocol_ops {
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void (*input)(struct snd_usb_midi_in_endpoint*, uint8_t*, int);
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void (*output)(struct snd_usb_midi_out_endpoint*);
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void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t);
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void (*init_out_endpoint)(struct snd_usb_midi_out_endpoint*);
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void (*finish_out_endpoint)(struct snd_usb_midi_out_endpoint*);
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};
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struct snd_usb_midi {
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struct snd_usb_audio *chip;
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struct usb_interface *iface;
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const struct snd_usb_audio_quirk *quirk;
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struct snd_rawmidi *rmidi;
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struct usb_protocol_ops* usb_protocol_ops;
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struct list_head list;
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struct timer_list error_timer;
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struct snd_usb_midi_endpoint {
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struct snd_usb_midi_out_endpoint *out;
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struct snd_usb_midi_in_endpoint *in;
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} endpoints[MIDI_MAX_ENDPOINTS];
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unsigned long input_triggered;
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};
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struct snd_usb_midi_out_endpoint {
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struct snd_usb_midi* umidi;
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struct urb* urb;
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int urb_active;
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int max_transfer; /* size of urb buffer */
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struct tasklet_struct tasklet;
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spinlock_t buffer_lock;
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struct usbmidi_out_port {
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struct snd_usb_midi_out_endpoint* ep;
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struct snd_rawmidi_substream *substream;
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int active;
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uint8_t cable; /* cable number << 4 */
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uint8_t state;
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#define STATE_UNKNOWN 0
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#define STATE_1PARAM 1
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#define STATE_2PARAM_1 2
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#define STATE_2PARAM_2 3
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#define STATE_SYSEX_0 4
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#define STATE_SYSEX_1 5
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#define STATE_SYSEX_2 6
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uint8_t data[2];
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} ports[0x10];
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int current_port;
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};
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struct snd_usb_midi_in_endpoint {
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struct snd_usb_midi* umidi;
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struct urb* urb;
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struct usbmidi_in_port {
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struct snd_rawmidi_substream *substream;
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u8 running_status_length;
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} ports[0x10];
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u8 seen_f5;
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u8 error_resubmit;
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int current_port;
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};
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static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint* ep);
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static const uint8_t snd_usbmidi_cin_length[] = {
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0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1
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};
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/*
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* Submits the URB, with error handling.
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*/
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static int snd_usbmidi_submit_urb(struct urb* urb, gfp_t flags)
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{
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int err = usb_submit_urb(urb, flags);
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if (err < 0 && err != -ENODEV)
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snd_printk(KERN_ERR "usb_submit_urb: %d\n", err);
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return err;
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}
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/*
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* Error handling for URB completion functions.
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*/
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static int snd_usbmidi_urb_error(int status)
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{
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switch (status) {
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/* manually unlinked, or device gone */
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case -ENOENT:
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case -ECONNRESET:
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case -ESHUTDOWN:
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case -ENODEV:
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return -ENODEV;
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/* errors that might occur during unplugging */
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case -EPROTO:
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case -ETIME:
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case -EILSEQ:
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return -EIO;
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default:
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snd_printk(KERN_ERR "urb status %d\n", status);
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return 0; /* continue */
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}
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}
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/*
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* Receives a chunk of MIDI data.
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*/
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static void snd_usbmidi_input_data(struct snd_usb_midi_in_endpoint* ep, int portidx,
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uint8_t* data, int length)
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{
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struct usbmidi_in_port* port = &ep->ports[portidx];
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if (!port->substream) {
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snd_printd("unexpected port %d!\n", portidx);
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return;
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}
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if (!test_bit(port->substream->number, &ep->umidi->input_triggered))
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return;
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snd_rawmidi_receive(port->substream, data, length);
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}
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#ifdef DUMP_PACKETS
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static void dump_urb(const char *type, const u8 *data, int length)
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{
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snd_printk(KERN_DEBUG "%s packet: [", type);
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for (; length > 0; ++data, --length)
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printk(" %02x", *data);
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printk(" ]\n");
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}
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#else
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#define dump_urb(type, data, length) /* nothing */
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#endif
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/*
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* Processes the data read from the device.
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*/
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static void snd_usbmidi_in_urb_complete(struct urb* urb)
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{
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struct snd_usb_midi_in_endpoint* ep = urb->context;
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if (urb->status == 0) {
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dump_urb("received", urb->transfer_buffer, urb->actual_length);
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ep->umidi->usb_protocol_ops->input(ep, urb->transfer_buffer,
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urb->actual_length);
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} else {
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int err = snd_usbmidi_urb_error(urb->status);
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if (err < 0) {
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if (err != -ENODEV) {
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ep->error_resubmit = 1;
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mod_timer(&ep->umidi->error_timer,
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jiffies + ERROR_DELAY_JIFFIES);
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}
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return;
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}
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}
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urb->dev = ep->umidi->chip->dev;
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snd_usbmidi_submit_urb(urb, GFP_ATOMIC);
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}
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static void snd_usbmidi_out_urb_complete(struct urb* urb)
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{
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struct snd_usb_midi_out_endpoint* ep = urb->context;
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spin_lock(&ep->buffer_lock);
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ep->urb_active = 0;
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spin_unlock(&ep->buffer_lock);
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if (urb->status < 0) {
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int err = snd_usbmidi_urb_error(urb->status);
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if (err < 0) {
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if (err != -ENODEV)
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mod_timer(&ep->umidi->error_timer,
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jiffies + ERROR_DELAY_JIFFIES);
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return;
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}
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}
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snd_usbmidi_do_output(ep);
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}
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/*
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* This is called when some data should be transferred to the device
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* (from one or more substreams).
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*/
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static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint* ep)
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{
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struct urb* urb = ep->urb;
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unsigned long flags;
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spin_lock_irqsave(&ep->buffer_lock, flags);
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if (ep->urb_active || ep->umidi->chip->shutdown) {
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spin_unlock_irqrestore(&ep->buffer_lock, flags);
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return;
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}
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urb->transfer_buffer_length = 0;
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ep->umidi->usb_protocol_ops->output(ep);
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if (urb->transfer_buffer_length > 0) {
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dump_urb("sending", urb->transfer_buffer,
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urb->transfer_buffer_length);
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urb->dev = ep->umidi->chip->dev;
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ep->urb_active = snd_usbmidi_submit_urb(urb, GFP_ATOMIC) >= 0;
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}
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spin_unlock_irqrestore(&ep->buffer_lock, flags);
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}
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static void snd_usbmidi_out_tasklet(unsigned long data)
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{
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struct snd_usb_midi_out_endpoint* ep = (struct snd_usb_midi_out_endpoint *) data;
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snd_usbmidi_do_output(ep);
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}
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/* called after transfers had been interrupted due to some USB error */
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static void snd_usbmidi_error_timer(unsigned long data)
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{
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307 |
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struct snd_usb_midi *umidi = (struct snd_usb_midi *)data;
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308 |
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int i;
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309 |
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310 |
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for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
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struct snd_usb_midi_in_endpoint *in = umidi->endpoints[i].in;
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if (in && in->error_resubmit) {
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in->error_resubmit = 0;
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in->urb->dev = umidi->chip->dev;
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snd_usbmidi_submit_urb(in->urb, GFP_ATOMIC);
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}
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317 |
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if (umidi->endpoints[i].out)
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snd_usbmidi_do_output(umidi->endpoints[i].out);
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319 |
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}
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}
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321 |
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/* helper function to send static data that may not DMA-able */
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static int send_bulk_static_data(struct snd_usb_midi_out_endpoint* ep,
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const void *data, int len)
|
325 |
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{
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326 |
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int err;
|
327 |
|
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void *buf = kmemdup(data, len, GFP_KERNEL);
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328 |
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if (!buf)
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return -ENOMEM;
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dump_urb("sending", buf, len);
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err = usb_bulk_msg(ep->umidi->chip->dev, ep->urb->pipe, buf, len,
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NULL, 250);
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kfree(buf);
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return err;
|
335 |
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}
|
336 |
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337 |
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/*
|
338 |
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* Standard USB MIDI protocol: see the spec.
|
339 |
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* Midiman protocol: like the standard protocol, but the control byte is the
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340 |
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* fourth byte in each packet, and uses length instead of CIN.
|
341 |
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*/
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342 |
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343 |
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static void snd_usbmidi_standard_input(struct snd_usb_midi_in_endpoint* ep,
|
344 |
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uint8_t* buffer, int buffer_length)
|
345 |
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{
|
346 |
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int i;
|
347 |
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|
348 |
|
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for (i = 0; i + 3 < buffer_length; i += 4)
|
349 |
|
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if (buffer[i] != 0) {
|
350 |
|
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int cable = buffer[i] >> 4;
|
351 |
|
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int length = snd_usbmidi_cin_length[buffer[i] & 0x0f];
|
352 |
|
|
snd_usbmidi_input_data(ep, cable, &buffer[i + 1], length);
|
353 |
|
|
}
|
354 |
|
|
}
|
355 |
|
|
|
356 |
|
|
static void snd_usbmidi_midiman_input(struct snd_usb_midi_in_endpoint* ep,
|
357 |
|
|
uint8_t* buffer, int buffer_length)
|
358 |
|
|
{
|
359 |
|
|
int i;
|
360 |
|
|
|
361 |
|
|
for (i = 0; i + 3 < buffer_length; i += 4)
|
362 |
|
|
if (buffer[i + 3] != 0) {
|
363 |
|
|
int port = buffer[i + 3] >> 4;
|
364 |
|
|
int length = buffer[i + 3] & 3;
|
365 |
|
|
snd_usbmidi_input_data(ep, port, &buffer[i], length);
|
366 |
|
|
}
|
367 |
|
|
}
|
368 |
|
|
|
369 |
|
|
/*
|
370 |
|
|
* Buggy M-Audio device: running status on input results in a packet that has
|
371 |
|
|
* the data bytes but not the status byte and that is marked with CIN 4.
|
372 |
|
|
*/
|
373 |
|
|
static void snd_usbmidi_maudio_broken_running_status_input(
|
374 |
|
|
struct snd_usb_midi_in_endpoint* ep,
|
375 |
|
|
uint8_t* buffer, int buffer_length)
|
376 |
|
|
{
|
377 |
|
|
int i;
|
378 |
|
|
|
379 |
|
|
for (i = 0; i + 3 < buffer_length; i += 4)
|
380 |
|
|
if (buffer[i] != 0) {
|
381 |
|
|
int cable = buffer[i] >> 4;
|
382 |
|
|
u8 cin = buffer[i] & 0x0f;
|
383 |
|
|
struct usbmidi_in_port *port = &ep->ports[cable];
|
384 |
|
|
int length;
|
385 |
|
|
|
386 |
|
|
length = snd_usbmidi_cin_length[cin];
|
387 |
|
|
if (cin == 0xf && buffer[i + 1] >= 0xf8)
|
388 |
|
|
; /* realtime msg: no running status change */
|
389 |
|
|
else if (cin >= 0x8 && cin <= 0xe)
|
390 |
|
|
/* channel msg */
|
391 |
|
|
port->running_status_length = length - 1;
|
392 |
|
|
else if (cin == 0x4 &&
|
393 |
|
|
port->running_status_length != 0 &&
|
394 |
|
|
buffer[i + 1] < 0x80)
|
395 |
|
|
/* CIN 4 that is not a SysEx */
|
396 |
|
|
length = port->running_status_length;
|
397 |
|
|
else
|
398 |
|
|
/*
|
399 |
|
|
* All other msgs cannot begin running status.
|
400 |
|
|
* (A channel msg sent as two or three CIN 0xF
|
401 |
|
|
* packets could in theory, but this device
|
402 |
|
|
* doesn't use this format.)
|
403 |
|
|
*/
|
404 |
|
|
port->running_status_length = 0;
|
405 |
|
|
snd_usbmidi_input_data(ep, cable, &buffer[i + 1], length);
|
406 |
|
|
}
|
407 |
|
|
}
|
408 |
|
|
|
409 |
|
|
/*
|
410 |
|
|
* CME protocol: like the standard protocol, but SysEx commands are sent as a
|
411 |
|
|
* single USB packet preceded by a 0x0F byte.
|
412 |
|
|
*/
|
413 |
|
|
static void snd_usbmidi_cme_input(struct snd_usb_midi_in_endpoint *ep,
|
414 |
|
|
uint8_t *buffer, int buffer_length)
|
415 |
|
|
{
|
416 |
|
|
if (buffer_length < 2 || (buffer[0] & 0x0f) != 0x0f)
|
417 |
|
|
snd_usbmidi_standard_input(ep, buffer, buffer_length);
|
418 |
|
|
else
|
419 |
|
|
snd_usbmidi_input_data(ep, buffer[0] >> 4,
|
420 |
|
|
&buffer[1], buffer_length - 1);
|
421 |
|
|
}
|
422 |
|
|
|
423 |
|
|
/*
|
424 |
|
|
* Adds one USB MIDI packet to the output buffer.
|
425 |
|
|
*/
|
426 |
|
|
static void snd_usbmidi_output_standard_packet(struct urb* urb, uint8_t p0,
|
427 |
|
|
uint8_t p1, uint8_t p2, uint8_t p3)
|
428 |
|
|
{
|
429 |
|
|
|
430 |
|
|
uint8_t* buf = (uint8_t*)urb->transfer_buffer + urb->transfer_buffer_length;
|
431 |
|
|
buf[0] = p0;
|
432 |
|
|
buf[1] = p1;
|
433 |
|
|
buf[2] = p2;
|
434 |
|
|
buf[3] = p3;
|
435 |
|
|
urb->transfer_buffer_length += 4;
|
436 |
|
|
}
|
437 |
|
|
|
438 |
|
|
/*
|
439 |
|
|
* Adds one Midiman packet to the output buffer.
|
440 |
|
|
*/
|
441 |
|
|
static void snd_usbmidi_output_midiman_packet(struct urb* urb, uint8_t p0,
|
442 |
|
|
uint8_t p1, uint8_t p2, uint8_t p3)
|
443 |
|
|
{
|
444 |
|
|
|
445 |
|
|
uint8_t* buf = (uint8_t*)urb->transfer_buffer + urb->transfer_buffer_length;
|
446 |
|
|
buf[0] = p1;
|
447 |
|
|
buf[1] = p2;
|
448 |
|
|
buf[2] = p3;
|
449 |
|
|
buf[3] = (p0 & 0xf0) | snd_usbmidi_cin_length[p0 & 0x0f];
|
450 |
|
|
urb->transfer_buffer_length += 4;
|
451 |
|
|
}
|
452 |
|
|
|
453 |
|
|
/*
|
454 |
|
|
* Converts MIDI commands to USB MIDI packets.
|
455 |
|
|
*/
|
456 |
|
|
static void snd_usbmidi_transmit_byte(struct usbmidi_out_port* port,
|
457 |
|
|
uint8_t b, struct urb* urb)
|
458 |
|
|
{
|
459 |
|
|
uint8_t p0 = port->cable;
|
460 |
|
|
void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t) =
|
461 |
|
|
port->ep->umidi->usb_protocol_ops->output_packet;
|
462 |
|
|
|
463 |
|
|
if (b >= 0xf8) {
|
464 |
|
|
output_packet(urb, p0 | 0x0f, b, 0, 0);
|
465 |
|
|
} else if (b >= 0xf0) {
|
466 |
|
|
switch (b) {
|
467 |
|
|
case 0xf0:
|
468 |
|
|
port->data[0] = b;
|
469 |
|
|
port->state = STATE_SYSEX_1;
|
470 |
|
|
break;
|
471 |
|
|
case 0xf1:
|
472 |
|
|
case 0xf3:
|
473 |
|
|
port->data[0] = b;
|
474 |
|
|
port->state = STATE_1PARAM;
|
475 |
|
|
break;
|
476 |
|
|
case 0xf2:
|
477 |
|
|
port->data[0] = b;
|
478 |
|
|
port->state = STATE_2PARAM_1;
|
479 |
|
|
break;
|
480 |
|
|
case 0xf4:
|
481 |
|
|
case 0xf5:
|
482 |
|
|
port->state = STATE_UNKNOWN;
|
483 |
|
|
break;
|
484 |
|
|
case 0xf6:
|
485 |
|
|
output_packet(urb, p0 | 0x05, 0xf6, 0, 0);
|
486 |
|
|
port->state = STATE_UNKNOWN;
|
487 |
|
|
break;
|
488 |
|
|
case 0xf7:
|
489 |
|
|
switch (port->state) {
|
490 |
|
|
case STATE_SYSEX_0:
|
491 |
|
|
output_packet(urb, p0 | 0x05, 0xf7, 0, 0);
|
492 |
|
|
break;
|
493 |
|
|
case STATE_SYSEX_1:
|
494 |
|
|
output_packet(urb, p0 | 0x06, port->data[0], 0xf7, 0);
|
495 |
|
|
break;
|
496 |
|
|
case STATE_SYSEX_2:
|
497 |
|
|
output_packet(urb, p0 | 0x07, port->data[0], port->data[1], 0xf7);
|
498 |
|
|
break;
|
499 |
|
|
}
|
500 |
|
|
port->state = STATE_UNKNOWN;
|
501 |
|
|
break;
|
502 |
|
|
}
|
503 |
|
|
} else if (b >= 0x80) {
|
504 |
|
|
port->data[0] = b;
|
505 |
|
|
if (b >= 0xc0 && b <= 0xdf)
|
506 |
|
|
port->state = STATE_1PARAM;
|
507 |
|
|
else
|
508 |
|
|
port->state = STATE_2PARAM_1;
|
509 |
|
|
} else { /* b < 0x80 */
|
510 |
|
|
switch (port->state) {
|
511 |
|
|
case STATE_1PARAM:
|
512 |
|
|
if (port->data[0] < 0xf0) {
|
513 |
|
|
p0 |= port->data[0] >> 4;
|
514 |
|
|
} else {
|
515 |
|
|
p0 |= 0x02;
|
516 |
|
|
port->state = STATE_UNKNOWN;
|
517 |
|
|
}
|
518 |
|
|
output_packet(urb, p0, port->data[0], b, 0);
|
519 |
|
|
break;
|
520 |
|
|
case STATE_2PARAM_1:
|
521 |
|
|
port->data[1] = b;
|
522 |
|
|
port->state = STATE_2PARAM_2;
|
523 |
|
|
break;
|
524 |
|
|
case STATE_2PARAM_2:
|
525 |
|
|
if (port->data[0] < 0xf0) {
|
526 |
|
|
p0 |= port->data[0] >> 4;
|
527 |
|
|
port->state = STATE_2PARAM_1;
|
528 |
|
|
} else {
|
529 |
|
|
p0 |= 0x03;
|
530 |
|
|
port->state = STATE_UNKNOWN;
|
531 |
|
|
}
|
532 |
|
|
output_packet(urb, p0, port->data[0], port->data[1], b);
|
533 |
|
|
break;
|
534 |
|
|
case STATE_SYSEX_0:
|
535 |
|
|
port->data[0] = b;
|
536 |
|
|
port->state = STATE_SYSEX_1;
|
537 |
|
|
break;
|
538 |
|
|
case STATE_SYSEX_1:
|
539 |
|
|
port->data[1] = b;
|
540 |
|
|
port->state = STATE_SYSEX_2;
|
541 |
|
|
break;
|
542 |
|
|
case STATE_SYSEX_2:
|
543 |
|
|
output_packet(urb, p0 | 0x04, port->data[0], port->data[1], b);
|
544 |
|
|
port->state = STATE_SYSEX_0;
|
545 |
|
|
break;
|
546 |
|
|
}
|
547 |
|
|
}
|
548 |
|
|
}
|
549 |
|
|
|
550 |
|
|
static void snd_usbmidi_standard_output(struct snd_usb_midi_out_endpoint* ep)
|
551 |
|
|
{
|
552 |
|
|
struct urb* urb = ep->urb;
|
553 |
|
|
int p;
|
554 |
|
|
|
555 |
|
|
/* FIXME: lower-numbered ports can starve higher-numbered ports */
|
556 |
|
|
for (p = 0; p < 0x10; ++p) {
|
557 |
|
|
struct usbmidi_out_port* port = &ep->ports[p];
|
558 |
|
|
if (!port->active)
|
559 |
|
|
continue;
|
560 |
|
|
while (urb->transfer_buffer_length + 3 < ep->max_transfer) {
|
561 |
|
|
uint8_t b;
|
562 |
|
|
if (snd_rawmidi_transmit(port->substream, &b, 1) != 1) {
|
563 |
|
|
port->active = 0;
|
564 |
|
|
break;
|
565 |
|
|
}
|
566 |
|
|
snd_usbmidi_transmit_byte(port, b, urb);
|
567 |
|
|
}
|
568 |
|
|
}
|
569 |
|
|
}
|
570 |
|
|
|
571 |
|
|
static struct usb_protocol_ops snd_usbmidi_standard_ops = {
|
572 |
|
|
.input = snd_usbmidi_standard_input,
|
573 |
|
|
.output = snd_usbmidi_standard_output,
|
574 |
|
|
.output_packet = snd_usbmidi_output_standard_packet,
|
575 |
|
|
};
|
576 |
|
|
|
577 |
|
|
static struct usb_protocol_ops snd_usbmidi_midiman_ops = {
|
578 |
|
|
.input = snd_usbmidi_midiman_input,
|
579 |
|
|
.output = snd_usbmidi_standard_output,
|
580 |
|
|
.output_packet = snd_usbmidi_output_midiman_packet,
|
581 |
|
|
};
|
582 |
|
|
|
583 |
|
|
static struct usb_protocol_ops snd_usbmidi_maudio_broken_running_status_ops = {
|
584 |
|
|
.input = snd_usbmidi_maudio_broken_running_status_input,
|
585 |
|
|
.output = snd_usbmidi_standard_output,
|
586 |
|
|
.output_packet = snd_usbmidi_output_standard_packet,
|
587 |
|
|
};
|
588 |
|
|
|
589 |
|
|
static struct usb_protocol_ops snd_usbmidi_cme_ops = {
|
590 |
|
|
.input = snd_usbmidi_cme_input,
|
591 |
|
|
.output = snd_usbmidi_standard_output,
|
592 |
|
|
.output_packet = snd_usbmidi_output_standard_packet,
|
593 |
|
|
};
|
594 |
|
|
|
595 |
|
|
/*
|
596 |
|
|
* Novation USB MIDI protocol: number of data bytes is in the first byte
|
597 |
|
|
* (when receiving) (+1!) or in the second byte (when sending); data begins
|
598 |
|
|
* at the third byte.
|
599 |
|
|
*/
|
600 |
|
|
|
601 |
|
|
static void snd_usbmidi_novation_input(struct snd_usb_midi_in_endpoint* ep,
|
602 |
|
|
uint8_t* buffer, int buffer_length)
|
603 |
|
|
{
|
604 |
|
|
if (buffer_length < 2 || !buffer[0] || buffer_length < buffer[0] + 1)
|
605 |
|
|
return;
|
606 |
|
|
snd_usbmidi_input_data(ep, 0, &buffer[2], buffer[0] - 1);
|
607 |
|
|
}
|
608 |
|
|
|
609 |
|
|
static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint* ep)
|
610 |
|
|
{
|
611 |
|
|
uint8_t* transfer_buffer;
|
612 |
|
|
int count;
|
613 |
|
|
|
614 |
|
|
if (!ep->ports[0].active)
|
615 |
|
|
return;
|
616 |
|
|
transfer_buffer = ep->urb->transfer_buffer;
|
617 |
|
|
count = snd_rawmidi_transmit(ep->ports[0].substream,
|
618 |
|
|
&transfer_buffer[2],
|
619 |
|
|
ep->max_transfer - 2);
|
620 |
|
|
if (count < 1) {
|
621 |
|
|
ep->ports[0].active = 0;
|
622 |
|
|
return;
|
623 |
|
|
}
|
624 |
|
|
transfer_buffer[0] = 0;
|
625 |
|
|
transfer_buffer[1] = count;
|
626 |
|
|
ep->urb->transfer_buffer_length = 2 + count;
|
627 |
|
|
}
|
628 |
|
|
|
629 |
|
|
static struct usb_protocol_ops snd_usbmidi_novation_ops = {
|
630 |
|
|
.input = snd_usbmidi_novation_input,
|
631 |
|
|
.output = snd_usbmidi_novation_output,
|
632 |
|
|
};
|
633 |
|
|
|
634 |
|
|
/*
|
635 |
|
|
* "raw" protocol: used by the MOTU FastLane.
|
636 |
|
|
*/
|
637 |
|
|
|
638 |
|
|
static void snd_usbmidi_raw_input(struct snd_usb_midi_in_endpoint* ep,
|
639 |
|
|
uint8_t* buffer, int buffer_length)
|
640 |
|
|
{
|
641 |
|
|
snd_usbmidi_input_data(ep, 0, buffer, buffer_length);
|
642 |
|
|
}
|
643 |
|
|
|
644 |
|
|
static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint* ep)
|
645 |
|
|
{
|
646 |
|
|
int count;
|
647 |
|
|
|
648 |
|
|
if (!ep->ports[0].active)
|
649 |
|
|
return;
|
650 |
|
|
count = snd_rawmidi_transmit(ep->ports[0].substream,
|
651 |
|
|
ep->urb->transfer_buffer,
|
652 |
|
|
ep->max_transfer);
|
653 |
|
|
if (count < 1) {
|
654 |
|
|
ep->ports[0].active = 0;
|
655 |
|
|
return;
|
656 |
|
|
}
|
657 |
|
|
ep->urb->transfer_buffer_length = count;
|
658 |
|
|
}
|
659 |
|
|
|
660 |
|
|
static struct usb_protocol_ops snd_usbmidi_raw_ops = {
|
661 |
|
|
.input = snd_usbmidi_raw_input,
|
662 |
|
|
.output = snd_usbmidi_raw_output,
|
663 |
|
|
};
|
664 |
|
|
|
665 |
|
|
/*
|
666 |
|
|
* Emagic USB MIDI protocol: raw MIDI with "F5 xx" port switching.
|
667 |
|
|
*/
|
668 |
|
|
|
669 |
|
|
static void snd_usbmidi_emagic_init_out(struct snd_usb_midi_out_endpoint* ep)
|
670 |
|
|
{
|
671 |
|
|
static const u8 init_data[] = {
|
672 |
|
|
/* initialization magic: "get version" */
|
673 |
|
|
0xf0,
|
674 |
|
|
0x00, 0x20, 0x31, /* Emagic */
|
675 |
|
|
0x64, /* Unitor8 */
|
676 |
|
|
0x0b, /* version number request */
|
677 |
|
|
0x00, /* command version */
|
678 |
|
|
0x00, /* EEPROM, box 0 */
|
679 |
|
|
0xf7
|
680 |
|
|
};
|
681 |
|
|
send_bulk_static_data(ep, init_data, sizeof(init_data));
|
682 |
|
|
/* while we're at it, pour on more magic */
|
683 |
|
|
send_bulk_static_data(ep, init_data, sizeof(init_data));
|
684 |
|
|
}
|
685 |
|
|
|
686 |
|
|
static void snd_usbmidi_emagic_finish_out(struct snd_usb_midi_out_endpoint* ep)
|
687 |
|
|
{
|
688 |
|
|
static const u8 finish_data[] = {
|
689 |
|
|
/* switch to patch mode with last preset */
|
690 |
|
|
0xf0,
|
691 |
|
|
0x00, 0x20, 0x31, /* Emagic */
|
692 |
|
|
0x64, /* Unitor8 */
|
693 |
|
|
0x10, /* patch switch command */
|
694 |
|
|
0x00, /* command version */
|
695 |
|
|
0x7f, /* to all boxes */
|
696 |
|
|
0x40, /* last preset in EEPROM */
|
697 |
|
|
0xf7
|
698 |
|
|
};
|
699 |
|
|
send_bulk_static_data(ep, finish_data, sizeof(finish_data));
|
700 |
|
|
}
|
701 |
|
|
|
702 |
|
|
static void snd_usbmidi_emagic_input(struct snd_usb_midi_in_endpoint* ep,
|
703 |
|
|
uint8_t* buffer, int buffer_length)
|
704 |
|
|
{
|
705 |
|
|
int i;
|
706 |
|
|
|
707 |
|
|
/* FF indicates end of valid data */
|
708 |
|
|
for (i = 0; i < buffer_length; ++i)
|
709 |
|
|
if (buffer[i] == 0xff) {
|
710 |
|
|
buffer_length = i;
|
711 |
|
|
break;
|
712 |
|
|
}
|
713 |
|
|
|
714 |
|
|
/* handle F5 at end of last buffer */
|
715 |
|
|
if (ep->seen_f5)
|
716 |
|
|
goto switch_port;
|
717 |
|
|
|
718 |
|
|
while (buffer_length > 0) {
|
719 |
|
|
/* determine size of data until next F5 */
|
720 |
|
|
for (i = 0; i < buffer_length; ++i)
|
721 |
|
|
if (buffer[i] == 0xf5)
|
722 |
|
|
break;
|
723 |
|
|
snd_usbmidi_input_data(ep, ep->current_port, buffer, i);
|
724 |
|
|
buffer += i;
|
725 |
|
|
buffer_length -= i;
|
726 |
|
|
|
727 |
|
|
if (buffer_length <= 0)
|
728 |
|
|
break;
|
729 |
|
|
/* assert(buffer[0] == 0xf5); */
|
730 |
|
|
ep->seen_f5 = 1;
|
731 |
|
|
++buffer;
|
732 |
|
|
--buffer_length;
|
733 |
|
|
|
734 |
|
|
switch_port:
|
735 |
|
|
if (buffer_length <= 0)
|
736 |
|
|
break;
|
737 |
|
|
if (buffer[0] < 0x80) {
|
738 |
|
|
ep->current_port = (buffer[0] - 1) & 15;
|
739 |
|
|
++buffer;
|
740 |
|
|
--buffer_length;
|
741 |
|
|
}
|
742 |
|
|
ep->seen_f5 = 0;
|
743 |
|
|
}
|
744 |
|
|
}
|
745 |
|
|
|
746 |
|
|
static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint* ep)
|
747 |
|
|
{
|
748 |
|
|
int port0 = ep->current_port;
|
749 |
|
|
uint8_t* buf = ep->urb->transfer_buffer;
|
750 |
|
|
int buf_free = ep->max_transfer;
|
751 |
|
|
int length, i;
|
752 |
|
|
|
753 |
|
|
for (i = 0; i < 0x10; ++i) {
|
754 |
|
|
/* round-robin, starting at the last current port */
|
755 |
|
|
int portnum = (port0 + i) & 15;
|
756 |
|
|
struct usbmidi_out_port* port = &ep->ports[portnum];
|
757 |
|
|
|
758 |
|
|
if (!port->active)
|
759 |
|
|
continue;
|
760 |
|
|
if (snd_rawmidi_transmit_peek(port->substream, buf, 1) != 1) {
|
761 |
|
|
port->active = 0;
|
762 |
|
|
continue;
|
763 |
|
|
}
|
764 |
|
|
|
765 |
|
|
if (portnum != ep->current_port) {
|
766 |
|
|
if (buf_free < 2)
|
767 |
|
|
break;
|
768 |
|
|
ep->current_port = portnum;
|
769 |
|
|
buf[0] = 0xf5;
|
770 |
|
|
buf[1] = (portnum + 1) & 15;
|
771 |
|
|
buf += 2;
|
772 |
|
|
buf_free -= 2;
|
773 |
|
|
}
|
774 |
|
|
|
775 |
|
|
if (buf_free < 1)
|
776 |
|
|
break;
|
777 |
|
|
length = snd_rawmidi_transmit(port->substream, buf, buf_free);
|
778 |
|
|
if (length > 0) {
|
779 |
|
|
buf += length;
|
780 |
|
|
buf_free -= length;
|
781 |
|
|
if (buf_free < 1)
|
782 |
|
|
break;
|
783 |
|
|
}
|
784 |
|
|
}
|
785 |
|
|
if (buf_free < ep->max_transfer && buf_free > 0) {
|
786 |
|
|
*buf = 0xff;
|
787 |
|
|
--buf_free;
|
788 |
|
|
}
|
789 |
|
|
ep->urb->transfer_buffer_length = ep->max_transfer - buf_free;
|
790 |
|
|
}
|
791 |
|
|
|
792 |
|
|
static struct usb_protocol_ops snd_usbmidi_emagic_ops = {
|
793 |
|
|
.input = snd_usbmidi_emagic_input,
|
794 |
|
|
.output = snd_usbmidi_emagic_output,
|
795 |
|
|
.init_out_endpoint = snd_usbmidi_emagic_init_out,
|
796 |
|
|
.finish_out_endpoint = snd_usbmidi_emagic_finish_out,
|
797 |
|
|
};
|
798 |
|
|
|
799 |
|
|
|
800 |
|
|
static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream)
|
801 |
|
|
{
|
802 |
|
|
struct snd_usb_midi* umidi = substream->rmidi->private_data;
|
803 |
|
|
struct usbmidi_out_port* port = NULL;
|
804 |
|
|
int i, j;
|
805 |
|
|
|
806 |
|
|
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i)
|
807 |
|
|
if (umidi->endpoints[i].out)
|
808 |
|
|
for (j = 0; j < 0x10; ++j)
|
809 |
|
|
if (umidi->endpoints[i].out->ports[j].substream == substream) {
|
810 |
|
|
port = &umidi->endpoints[i].out->ports[j];
|
811 |
|
|
break;
|
812 |
|
|
}
|
813 |
|
|
if (!port) {
|
814 |
|
|
snd_BUG();
|
815 |
|
|
return -ENXIO;
|
816 |
|
|
}
|
817 |
|
|
substream->runtime->private_data = port;
|
818 |
|
|
port->state = STATE_UNKNOWN;
|
819 |
|
|
return 0;
|
820 |
|
|
}
|
821 |
|
|
|
822 |
|
|
static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream)
|
823 |
|
|
{
|
824 |
|
|
return 0;
|
825 |
|
|
}
|
826 |
|
|
|
827 |
|
|
static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream *substream, int up)
|
828 |
|
|
{
|
829 |
|
|
struct usbmidi_out_port* port = (struct usbmidi_out_port*)substream->runtime->private_data;
|
830 |
|
|
|
831 |
|
|
port->active = up;
|
832 |
|
|
if (up) {
|
833 |
|
|
if (port->ep->umidi->chip->shutdown) {
|
834 |
|
|
/* gobble up remaining bytes to prevent wait in
|
835 |
|
|
* snd_rawmidi_drain_output */
|
836 |
|
|
while (!snd_rawmidi_transmit_empty(substream))
|
837 |
|
|
snd_rawmidi_transmit_ack(substream, 1);
|
838 |
|
|
return;
|
839 |
|
|
}
|
840 |
|
|
tasklet_hi_schedule(&port->ep->tasklet);
|
841 |
|
|
}
|
842 |
|
|
}
|
843 |
|
|
|
844 |
|
|
static int snd_usbmidi_input_open(struct snd_rawmidi_substream *substream)
|
845 |
|
|
{
|
846 |
|
|
return 0;
|
847 |
|
|
}
|
848 |
|
|
|
849 |
|
|
static int snd_usbmidi_input_close(struct snd_rawmidi_substream *substream)
|
850 |
|
|
{
|
851 |
|
|
return 0;
|
852 |
|
|
}
|
853 |
|
|
|
854 |
|
|
static void snd_usbmidi_input_trigger(struct snd_rawmidi_substream *substream, int up)
|
855 |
|
|
{
|
856 |
|
|
struct snd_usb_midi* umidi = substream->rmidi->private_data;
|
857 |
|
|
|
858 |
|
|
if (up)
|
859 |
|
|
set_bit(substream->number, &umidi->input_triggered);
|
860 |
|
|
else
|
861 |
|
|
clear_bit(substream->number, &umidi->input_triggered);
|
862 |
|
|
}
|
863 |
|
|
|
864 |
|
|
static struct snd_rawmidi_ops snd_usbmidi_output_ops = {
|
865 |
|
|
.open = snd_usbmidi_output_open,
|
866 |
|
|
.close = snd_usbmidi_output_close,
|
867 |
|
|
.trigger = snd_usbmidi_output_trigger,
|
868 |
|
|
};
|
869 |
|
|
|
870 |
|
|
static struct snd_rawmidi_ops snd_usbmidi_input_ops = {
|
871 |
|
|
.open = snd_usbmidi_input_open,
|
872 |
|
|
.close = snd_usbmidi_input_close,
|
873 |
|
|
.trigger = snd_usbmidi_input_trigger
|
874 |
|
|
};
|
875 |
|
|
|
876 |
|
|
/*
|
877 |
|
|
* Frees an input endpoint.
|
878 |
|
|
* May be called when ep hasn't been initialized completely.
|
879 |
|
|
*/
|
880 |
|
|
static void snd_usbmidi_in_endpoint_delete(struct snd_usb_midi_in_endpoint* ep)
|
881 |
|
|
{
|
882 |
|
|
if (ep->urb) {
|
883 |
|
|
usb_buffer_free(ep->umidi->chip->dev,
|
884 |
|
|
ep->urb->transfer_buffer_length,
|
885 |
|
|
ep->urb->transfer_buffer,
|
886 |
|
|
ep->urb->transfer_dma);
|
887 |
|
|
usb_free_urb(ep->urb);
|
888 |
|
|
}
|
889 |
|
|
kfree(ep);
|
890 |
|
|
}
|
891 |
|
|
|
892 |
|
|
/*
|
893 |
|
|
* Creates an input endpoint.
|
894 |
|
|
*/
|
895 |
|
|
static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi* umidi,
|
896 |
|
|
struct snd_usb_midi_endpoint_info* ep_info,
|
897 |
|
|
struct snd_usb_midi_endpoint* rep)
|
898 |
|
|
{
|
899 |
|
|
struct snd_usb_midi_in_endpoint* ep;
|
900 |
|
|
void* buffer;
|
901 |
|
|
unsigned int pipe;
|
902 |
|
|
int length;
|
903 |
|
|
|
904 |
|
|
rep->in = NULL;
|
905 |
|
|
ep = kzalloc(sizeof(*ep), GFP_KERNEL);
|
906 |
|
|
if (!ep)
|
907 |
|
|
return -ENOMEM;
|
908 |
|
|
ep->umidi = umidi;
|
909 |
|
|
|
910 |
|
|
ep->urb = usb_alloc_urb(0, GFP_KERNEL);
|
911 |
|
|
if (!ep->urb) {
|
912 |
|
|
snd_usbmidi_in_endpoint_delete(ep);
|
913 |
|
|
return -ENOMEM;
|
914 |
|
|
}
|
915 |
|
|
if (ep_info->in_interval)
|
916 |
|
|
pipe = usb_rcvintpipe(umidi->chip->dev, ep_info->in_ep);
|
917 |
|
|
else
|
918 |
|
|
pipe = usb_rcvbulkpipe(umidi->chip->dev, ep_info->in_ep);
|
919 |
|
|
length = usb_maxpacket(umidi->chip->dev, pipe, 0);
|
920 |
|
|
buffer = usb_buffer_alloc(umidi->chip->dev, length, GFP_KERNEL,
|
921 |
|
|
&ep->urb->transfer_dma);
|
922 |
|
|
if (!buffer) {
|
923 |
|
|
snd_usbmidi_in_endpoint_delete(ep);
|
924 |
|
|
return -ENOMEM;
|
925 |
|
|
}
|
926 |
|
|
if (ep_info->in_interval)
|
927 |
|
|
usb_fill_int_urb(ep->urb, umidi->chip->dev, pipe, buffer,
|
928 |
|
|
length, snd_usbmidi_in_urb_complete, ep,
|
929 |
|
|
ep_info->in_interval);
|
930 |
|
|
else
|
931 |
|
|
usb_fill_bulk_urb(ep->urb, umidi->chip->dev, pipe, buffer,
|
932 |
|
|
length, snd_usbmidi_in_urb_complete, ep);
|
933 |
|
|
ep->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
|
934 |
|
|
|
935 |
|
|
rep->in = ep;
|
936 |
|
|
return 0;
|
937 |
|
|
}
|
938 |
|
|
|
939 |
|
|
static unsigned int snd_usbmidi_count_bits(unsigned int x)
|
940 |
|
|
{
|
941 |
|
|
unsigned int bits;
|
942 |
|
|
|
943 |
|
|
for (bits = 0; x; ++bits)
|
944 |
|
|
x &= x - 1;
|
945 |
|
|
return bits;
|
946 |
|
|
}
|
947 |
|
|
|
948 |
|
|
/*
|
949 |
|
|
* Frees an output endpoint.
|
950 |
|
|
* May be called when ep hasn't been initialized completely.
|
951 |
|
|
*/
|
952 |
|
|
static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint* ep)
|
953 |
|
|
{
|
954 |
|
|
if (ep->urb) {
|
955 |
|
|
usb_buffer_free(ep->umidi->chip->dev, ep->max_transfer,
|
956 |
|
|
ep->urb->transfer_buffer,
|
957 |
|
|
ep->urb->transfer_dma);
|
958 |
|
|
usb_free_urb(ep->urb);
|
959 |
|
|
}
|
960 |
|
|
kfree(ep);
|
961 |
|
|
}
|
962 |
|
|
|
963 |
|
|
/*
|
964 |
|
|
* Creates an output endpoint, and initializes output ports.
|
965 |
|
|
*/
|
966 |
|
|
static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi* umidi,
|
967 |
|
|
struct snd_usb_midi_endpoint_info* ep_info,
|
968 |
|
|
struct snd_usb_midi_endpoint* rep)
|
969 |
|
|
{
|
970 |
|
|
struct snd_usb_midi_out_endpoint* ep;
|
971 |
|
|
int i;
|
972 |
|
|
unsigned int pipe;
|
973 |
|
|
void* buffer;
|
974 |
|
|
|
975 |
|
|
rep->out = NULL;
|
976 |
|
|
ep = kzalloc(sizeof(*ep), GFP_KERNEL);
|
977 |
|
|
if (!ep)
|
978 |
|
|
return -ENOMEM;
|
979 |
|
|
ep->umidi = umidi;
|
980 |
|
|
|
981 |
|
|
ep->urb = usb_alloc_urb(0, GFP_KERNEL);
|
982 |
|
|
if (!ep->urb) {
|
983 |
|
|
snd_usbmidi_out_endpoint_delete(ep);
|
984 |
|
|
return -ENOMEM;
|
985 |
|
|
}
|
986 |
|
|
if (ep_info->out_interval)
|
987 |
|
|
pipe = usb_sndintpipe(umidi->chip->dev, ep_info->out_ep);
|
988 |
|
|
else
|
989 |
|
|
pipe = usb_sndbulkpipe(umidi->chip->dev, ep_info->out_ep);
|
990 |
|
|
if (umidi->chip->usb_id == USB_ID(0x0a92, 0x1020)) /* ESI M4U */
|
991 |
|
|
/* FIXME: we need more URBs to get reasonable bandwidth here: */
|
992 |
|
|
ep->max_transfer = 4;
|
993 |
|
|
else
|
994 |
|
|
ep->max_transfer = usb_maxpacket(umidi->chip->dev, pipe, 1);
|
995 |
|
|
buffer = usb_buffer_alloc(umidi->chip->dev, ep->max_transfer,
|
996 |
|
|
GFP_KERNEL, &ep->urb->transfer_dma);
|
997 |
|
|
if (!buffer) {
|
998 |
|
|
snd_usbmidi_out_endpoint_delete(ep);
|
999 |
|
|
return -ENOMEM;
|
1000 |
|
|
}
|
1001 |
|
|
if (ep_info->out_interval)
|
1002 |
|
|
usb_fill_int_urb(ep->urb, umidi->chip->dev, pipe, buffer,
|
1003 |
|
|
ep->max_transfer, snd_usbmidi_out_urb_complete,
|
1004 |
|
|
ep, ep_info->out_interval);
|
1005 |
|
|
else
|
1006 |
|
|
usb_fill_bulk_urb(ep->urb, umidi->chip->dev,
|
1007 |
|
|
pipe, buffer, ep->max_transfer,
|
1008 |
|
|
snd_usbmidi_out_urb_complete, ep);
|
1009 |
|
|
ep->urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP;
|
1010 |
|
|
|
1011 |
|
|
spin_lock_init(&ep->buffer_lock);
|
1012 |
|
|
tasklet_init(&ep->tasklet, snd_usbmidi_out_tasklet, (unsigned long)ep);
|
1013 |
|
|
|
1014 |
|
|
for (i = 0; i < 0x10; ++i)
|
1015 |
|
|
if (ep_info->out_cables & (1 << i)) {
|
1016 |
|
|
ep->ports[i].ep = ep;
|
1017 |
|
|
ep->ports[i].cable = i << 4;
|
1018 |
|
|
}
|
1019 |
|
|
|
1020 |
|
|
if (umidi->usb_protocol_ops->init_out_endpoint)
|
1021 |
|
|
umidi->usb_protocol_ops->init_out_endpoint(ep);
|
1022 |
|
|
|
1023 |
|
|
rep->out = ep;
|
1024 |
|
|
return 0;
|
1025 |
|
|
}
|
1026 |
|
|
|
1027 |
|
|
/*
|
1028 |
|
|
* Frees everything.
|
1029 |
|
|
*/
|
1030 |
|
|
static void snd_usbmidi_free(struct snd_usb_midi* umidi)
|
1031 |
|
|
{
|
1032 |
|
|
int i;
|
1033 |
|
|
|
1034 |
|
|
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
|
1035 |
|
|
struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i];
|
1036 |
|
|
if (ep->out)
|
1037 |
|
|
snd_usbmidi_out_endpoint_delete(ep->out);
|
1038 |
|
|
if (ep->in)
|
1039 |
|
|
snd_usbmidi_in_endpoint_delete(ep->in);
|
1040 |
|
|
}
|
1041 |
|
|
kfree(umidi);
|
1042 |
|
|
}
|
1043 |
|
|
|
1044 |
|
|
/*
|
1045 |
|
|
* Unlinks all URBs (must be done before the usb_device is deleted).
|
1046 |
|
|
*/
|
1047 |
|
|
void snd_usbmidi_disconnect(struct list_head* p)
|
1048 |
|
|
{
|
1049 |
|
|
struct snd_usb_midi* umidi;
|
1050 |
|
|
int i;
|
1051 |
|
|
|
1052 |
|
|
umidi = list_entry(p, struct snd_usb_midi, list);
|
1053 |
|
|
del_timer_sync(&umidi->error_timer);
|
1054 |
|
|
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
|
1055 |
|
|
struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i];
|
1056 |
|
|
if (ep->out)
|
1057 |
|
|
tasklet_kill(&ep->out->tasklet);
|
1058 |
|
|
if (ep->out && ep->out->urb) {
|
1059 |
|
|
usb_kill_urb(ep->out->urb);
|
1060 |
|
|
if (umidi->usb_protocol_ops->finish_out_endpoint)
|
1061 |
|
|
umidi->usb_protocol_ops->finish_out_endpoint(ep->out);
|
1062 |
|
|
}
|
1063 |
|
|
if (ep->in)
|
1064 |
|
|
usb_kill_urb(ep->in->urb);
|
1065 |
|
|
}
|
1066 |
|
|
}
|
1067 |
|
|
|
1068 |
|
|
static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi)
|
1069 |
|
|
{
|
1070 |
|
|
struct snd_usb_midi* umidi = rmidi->private_data;
|
1071 |
|
|
snd_usbmidi_free(umidi);
|
1072 |
|
|
}
|
1073 |
|
|
|
1074 |
|
|
static struct snd_rawmidi_substream *snd_usbmidi_find_substream(struct snd_usb_midi* umidi,
|
1075 |
|
|
int stream, int number)
|
1076 |
|
|
{
|
1077 |
|
|
struct list_head* list;
|
1078 |
|
|
|
1079 |
|
|
list_for_each(list, &umidi->rmidi->streams[stream].substreams) {
|
1080 |
|
|
struct snd_rawmidi_substream *substream = list_entry(list, struct snd_rawmidi_substream, list);
|
1081 |
|
|
if (substream->number == number)
|
1082 |
|
|
return substream;
|
1083 |
|
|
}
|
1084 |
|
|
return NULL;
|
1085 |
|
|
}
|
1086 |
|
|
|
1087 |
|
|
/*
|
1088 |
|
|
* This list specifies names for ports that do not fit into the standard
|
1089 |
|
|
* "(product) MIDI (n)" schema because they aren't external MIDI ports,
|
1090 |
|
|
* such as internal control or synthesizer ports.
|
1091 |
|
|
*/
|
1092 |
|
|
static struct port_info {
|
1093 |
|
|
u32 id;
|
1094 |
|
|
short int port;
|
1095 |
|
|
short int voices;
|
1096 |
|
|
const char *name;
|
1097 |
|
|
unsigned int seq_flags;
|
1098 |
|
|
} snd_usbmidi_port_info[] = {
|
1099 |
|
|
#define PORT_INFO(vendor, product, num, name_, voices_, flags) \
|
1100 |
|
|
{ .id = USB_ID(vendor, product), \
|
1101 |
|
|
.port = num, .voices = voices_, \
|
1102 |
|
|
.name = name_, .seq_flags = flags }
|
1103 |
|
|
#define EXTERNAL_PORT(vendor, product, num, name) \
|
1104 |
|
|
PORT_INFO(vendor, product, num, name, 0, \
|
1105 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \
|
1106 |
|
|
SNDRV_SEQ_PORT_TYPE_HARDWARE | \
|
1107 |
|
|
SNDRV_SEQ_PORT_TYPE_PORT)
|
1108 |
|
|
#define CONTROL_PORT(vendor, product, num, name) \
|
1109 |
|
|
PORT_INFO(vendor, product, num, name, 0, \
|
1110 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \
|
1111 |
|
|
SNDRV_SEQ_PORT_TYPE_HARDWARE)
|
1112 |
|
|
#define ROLAND_SYNTH_PORT(vendor, product, num, name, voices) \
|
1113 |
|
|
PORT_INFO(vendor, product, num, name, voices, \
|
1114 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \
|
1115 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_GM | \
|
1116 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \
|
1117 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_GS | \
|
1118 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_XG | \
|
1119 |
|
|
SNDRV_SEQ_PORT_TYPE_HARDWARE | \
|
1120 |
|
|
SNDRV_SEQ_PORT_TYPE_SYNTHESIZER)
|
1121 |
|
|
#define SOUNDCANVAS_PORT(vendor, product, num, name, voices) \
|
1122 |
|
|
PORT_INFO(vendor, product, num, name, voices, \
|
1123 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \
|
1124 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_GM | \
|
1125 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \
|
1126 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_GS | \
|
1127 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_XG | \
|
1128 |
|
|
SNDRV_SEQ_PORT_TYPE_MIDI_MT32 | \
|
1129 |
|
|
SNDRV_SEQ_PORT_TYPE_HARDWARE | \
|
1130 |
|
|
SNDRV_SEQ_PORT_TYPE_SYNTHESIZER)
|
1131 |
|
|
/* Roland UA-100 */
|
1132 |
|
|
CONTROL_PORT(0x0582, 0x0000, 2, "%s Control"),
|
1133 |
|
|
/* Roland SC-8850 */
|
1134 |
|
|
SOUNDCANVAS_PORT(0x0582, 0x0003, 0, "%s Part A", 128),
|
1135 |
|
|
SOUNDCANVAS_PORT(0x0582, 0x0003, 1, "%s Part B", 128),
|
1136 |
|
|
SOUNDCANVAS_PORT(0x0582, 0x0003, 2, "%s Part C", 128),
|
1137 |
|
|
SOUNDCANVAS_PORT(0x0582, 0x0003, 3, "%s Part D", 128),
|
1138 |
|
|
EXTERNAL_PORT(0x0582, 0x0003, 4, "%s MIDI 1"),
|
1139 |
|
|
EXTERNAL_PORT(0x0582, 0x0003, 5, "%s MIDI 2"),
|
1140 |
|
|
/* Roland U-8 */
|
1141 |
|
|
EXTERNAL_PORT(0x0582, 0x0004, 0, "%s MIDI"),
|
1142 |
|
|
CONTROL_PORT(0x0582, 0x0004, 1, "%s Control"),
|
1143 |
|
|
/* Roland SC-8820 */
|
1144 |
|
|
SOUNDCANVAS_PORT(0x0582, 0x0007, 0, "%s Part A", 64),
|
1145 |
|
|
SOUNDCANVAS_PORT(0x0582, 0x0007, 1, "%s Part B", 64),
|
1146 |
|
|
EXTERNAL_PORT(0x0582, 0x0007, 2, "%s MIDI"),
|
1147 |
|
|
/* Roland SK-500 */
|
1148 |
|
|
SOUNDCANVAS_PORT(0x0582, 0x000b, 0, "%s Part A", 64),
|
1149 |
|
|
SOUNDCANVAS_PORT(0x0582, 0x000b, 1, "%s Part B", 64),
|
1150 |
|
|
EXTERNAL_PORT(0x0582, 0x000b, 2, "%s MIDI"),
|
1151 |
|
|
/* Roland SC-D70 */
|
1152 |
|
|
SOUNDCANVAS_PORT(0x0582, 0x000c, 0, "%s Part A", 64),
|
1153 |
|
|
SOUNDCANVAS_PORT(0x0582, 0x000c, 1, "%s Part B", 64),
|
1154 |
|
|
EXTERNAL_PORT(0x0582, 0x000c, 2, "%s MIDI"),
|
1155 |
|
|
/* Edirol UM-880 */
|
1156 |
|
|
CONTROL_PORT(0x0582, 0x0014, 8, "%s Control"),
|
1157 |
|
|
/* Edirol SD-90 */
|
1158 |
|
|
ROLAND_SYNTH_PORT(0x0582, 0x0016, 0, "%s Part A", 128),
|
1159 |
|
|
ROLAND_SYNTH_PORT(0x0582, 0x0016, 1, "%s Part B", 128),
|
1160 |
|
|
EXTERNAL_PORT(0x0582, 0x0016, 2, "%s MIDI 1"),
|
1161 |
|
|
EXTERNAL_PORT(0x0582, 0x0016, 3, "%s MIDI 2"),
|
1162 |
|
|
/* Edirol UM-550 */
|
1163 |
|
|
CONTROL_PORT(0x0582, 0x0023, 5, "%s Control"),
|
1164 |
|
|
/* Edirol SD-20 */
|
1165 |
|
|
ROLAND_SYNTH_PORT(0x0582, 0x0027, 0, "%s Part A", 64),
|
1166 |
|
|
ROLAND_SYNTH_PORT(0x0582, 0x0027, 1, "%s Part B", 64),
|
1167 |
|
|
EXTERNAL_PORT(0x0582, 0x0027, 2, "%s MIDI"),
|
1168 |
|
|
/* Edirol SD-80 */
|
1169 |
|
|
ROLAND_SYNTH_PORT(0x0582, 0x0029, 0, "%s Part A", 128),
|
1170 |
|
|
ROLAND_SYNTH_PORT(0x0582, 0x0029, 1, "%s Part B", 128),
|
1171 |
|
|
EXTERNAL_PORT(0x0582, 0x0029, 2, "%s MIDI 1"),
|
1172 |
|
|
EXTERNAL_PORT(0x0582, 0x0029, 3, "%s MIDI 2"),
|
1173 |
|
|
/* Edirol UA-700 */
|
1174 |
|
|
EXTERNAL_PORT(0x0582, 0x002b, 0, "%s MIDI"),
|
1175 |
|
|
CONTROL_PORT(0x0582, 0x002b, 1, "%s Control"),
|
1176 |
|
|
/* Roland VariOS */
|
1177 |
|
|
EXTERNAL_PORT(0x0582, 0x002f, 0, "%s MIDI"),
|
1178 |
|
|
EXTERNAL_PORT(0x0582, 0x002f, 1, "%s External MIDI"),
|
1179 |
|
|
EXTERNAL_PORT(0x0582, 0x002f, 2, "%s Sync"),
|
1180 |
|
|
/* Edirol PCR */
|
1181 |
|
|
EXTERNAL_PORT(0x0582, 0x0033, 0, "%s MIDI"),
|
1182 |
|
|
EXTERNAL_PORT(0x0582, 0x0033, 1, "%s 1"),
|
1183 |
|
|
EXTERNAL_PORT(0x0582, 0x0033, 2, "%s 2"),
|
1184 |
|
|
/* BOSS GS-10 */
|
1185 |
|
|
EXTERNAL_PORT(0x0582, 0x003b, 0, "%s MIDI"),
|
1186 |
|
|
CONTROL_PORT(0x0582, 0x003b, 1, "%s Control"),
|
1187 |
|
|
/* Edirol UA-1000 */
|
1188 |
|
|
EXTERNAL_PORT(0x0582, 0x0044, 0, "%s MIDI"),
|
1189 |
|
|
CONTROL_PORT(0x0582, 0x0044, 1, "%s Control"),
|
1190 |
|
|
/* Edirol UR-80 */
|
1191 |
|
|
EXTERNAL_PORT(0x0582, 0x0048, 0, "%s MIDI"),
|
1192 |
|
|
EXTERNAL_PORT(0x0582, 0x0048, 1, "%s 1"),
|
1193 |
|
|
EXTERNAL_PORT(0x0582, 0x0048, 2, "%s 2"),
|
1194 |
|
|
/* Edirol PCR-A */
|
1195 |
|
|
EXTERNAL_PORT(0x0582, 0x004d, 0, "%s MIDI"),
|
1196 |
|
|
EXTERNAL_PORT(0x0582, 0x004d, 1, "%s 1"),
|
1197 |
|
|
EXTERNAL_PORT(0x0582, 0x004d, 2, "%s 2"),
|
1198 |
|
|
/* Edirol UM-3EX */
|
1199 |
|
|
CONTROL_PORT(0x0582, 0x009a, 3, "%s Control"),
|
1200 |
|
|
/* M-Audio MidiSport 8x8 */
|
1201 |
|
|
CONTROL_PORT(0x0763, 0x1031, 8, "%s Control"),
|
1202 |
|
|
CONTROL_PORT(0x0763, 0x1033, 8, "%s Control"),
|
1203 |
|
|
/* MOTU Fastlane */
|
1204 |
|
|
EXTERNAL_PORT(0x07fd, 0x0001, 0, "%s MIDI A"),
|
1205 |
|
|
EXTERNAL_PORT(0x07fd, 0x0001, 1, "%s MIDI B"),
|
1206 |
|
|
/* Emagic Unitor8/AMT8/MT4 */
|
1207 |
|
|
EXTERNAL_PORT(0x086a, 0x0001, 8, "%s Broadcast"),
|
1208 |
|
|
EXTERNAL_PORT(0x086a, 0x0002, 8, "%s Broadcast"),
|
1209 |
|
|
EXTERNAL_PORT(0x086a, 0x0003, 4, "%s Broadcast"),
|
1210 |
|
|
};
|
1211 |
|
|
|
1212 |
|
|
static struct port_info *find_port_info(struct snd_usb_midi* umidi, int number)
|
1213 |
|
|
{
|
1214 |
|
|
int i;
|
1215 |
|
|
|
1216 |
|
|
for (i = 0; i < ARRAY_SIZE(snd_usbmidi_port_info); ++i) {
|
1217 |
|
|
if (snd_usbmidi_port_info[i].id == umidi->chip->usb_id &&
|
1218 |
|
|
snd_usbmidi_port_info[i].port == number)
|
1219 |
|
|
return &snd_usbmidi_port_info[i];
|
1220 |
|
|
}
|
1221 |
|
|
return NULL;
|
1222 |
|
|
}
|
1223 |
|
|
|
1224 |
|
|
static void snd_usbmidi_get_port_info(struct snd_rawmidi *rmidi, int number,
|
1225 |
|
|
struct snd_seq_port_info *seq_port_info)
|
1226 |
|
|
{
|
1227 |
|
|
struct snd_usb_midi *umidi = rmidi->private_data;
|
1228 |
|
|
struct port_info *port_info;
|
1229 |
|
|
|
1230 |
|
|
/* TODO: read port flags from descriptors */
|
1231 |
|
|
port_info = find_port_info(umidi, number);
|
1232 |
|
|
if (port_info) {
|
1233 |
|
|
seq_port_info->type = port_info->seq_flags;
|
1234 |
|
|
seq_port_info->midi_voices = port_info->voices;
|
1235 |
|
|
}
|
1236 |
|
|
}
|
1237 |
|
|
|
1238 |
|
|
static void snd_usbmidi_init_substream(struct snd_usb_midi* umidi,
|
1239 |
|
|
int stream, int number,
|
1240 |
|
|
struct snd_rawmidi_substream ** rsubstream)
|
1241 |
|
|
{
|
1242 |
|
|
struct port_info *port_info;
|
1243 |
|
|
const char *name_format;
|
1244 |
|
|
|
1245 |
|
|
struct snd_rawmidi_substream *substream = snd_usbmidi_find_substream(umidi, stream, number);
|
1246 |
|
|
if (!substream) {
|
1247 |
|
|
snd_printd(KERN_ERR "substream %d:%d not found\n", stream, number);
|
1248 |
|
|
return;
|
1249 |
|
|
}
|
1250 |
|
|
|
1251 |
|
|
/* TODO: read port name from jack descriptor */
|
1252 |
|
|
port_info = find_port_info(umidi, number);
|
1253 |
|
|
name_format = port_info ? port_info->name : "%s MIDI %d";
|
1254 |
|
|
snprintf(substream->name, sizeof(substream->name),
|
1255 |
|
|
name_format, umidi->chip->card->shortname, number + 1);
|
1256 |
|
|
|
1257 |
|
|
*rsubstream = substream;
|
1258 |
|
|
}
|
1259 |
|
|
|
1260 |
|
|
/*
|
1261 |
|
|
* Creates the endpoints and their ports.
|
1262 |
|
|
*/
|
1263 |
|
|
static int snd_usbmidi_create_endpoints(struct snd_usb_midi* umidi,
|
1264 |
|
|
struct snd_usb_midi_endpoint_info* endpoints)
|
1265 |
|
|
{
|
1266 |
|
|
int i, j, err;
|
1267 |
|
|
int out_ports = 0, in_ports = 0;
|
1268 |
|
|
|
1269 |
|
|
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
|
1270 |
|
|
if (endpoints[i].out_cables) {
|
1271 |
|
|
err = snd_usbmidi_out_endpoint_create(umidi, &endpoints[i],
|
1272 |
|
|
&umidi->endpoints[i]);
|
1273 |
|
|
if (err < 0)
|
1274 |
|
|
return err;
|
1275 |
|
|
}
|
1276 |
|
|
if (endpoints[i].in_cables) {
|
1277 |
|
|
err = snd_usbmidi_in_endpoint_create(umidi, &endpoints[i],
|
1278 |
|
|
&umidi->endpoints[i]);
|
1279 |
|
|
if (err < 0)
|
1280 |
|
|
return err;
|
1281 |
|
|
}
|
1282 |
|
|
|
1283 |
|
|
for (j = 0; j < 0x10; ++j) {
|
1284 |
|
|
if (endpoints[i].out_cables & (1 << j)) {
|
1285 |
|
|
snd_usbmidi_init_substream(umidi, SNDRV_RAWMIDI_STREAM_OUTPUT, out_ports,
|
1286 |
|
|
&umidi->endpoints[i].out->ports[j].substream);
|
1287 |
|
|
++out_ports;
|
1288 |
|
|
}
|
1289 |
|
|
if (endpoints[i].in_cables & (1 << j)) {
|
1290 |
|
|
snd_usbmidi_init_substream(umidi, SNDRV_RAWMIDI_STREAM_INPUT, in_ports,
|
1291 |
|
|
&umidi->endpoints[i].in->ports[j].substream);
|
1292 |
|
|
++in_ports;
|
1293 |
|
|
}
|
1294 |
|
|
}
|
1295 |
|
|
}
|
1296 |
|
|
snd_printdd(KERN_INFO "created %d output and %d input ports\n",
|
1297 |
|
|
out_ports, in_ports);
|
1298 |
|
|
return 0;
|
1299 |
|
|
}
|
1300 |
|
|
|
1301 |
|
|
/*
|
1302 |
|
|
* Returns MIDIStreaming device capabilities.
|
1303 |
|
|
*/
|
1304 |
|
|
static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi,
|
1305 |
|
|
struct snd_usb_midi_endpoint_info* endpoints)
|
1306 |
|
|
{
|
1307 |
|
|
struct usb_interface* intf;
|
1308 |
|
|
struct usb_host_interface *hostif;
|
1309 |
|
|
struct usb_interface_descriptor* intfd;
|
1310 |
|
|
struct usb_ms_header_descriptor* ms_header;
|
1311 |
|
|
struct usb_host_endpoint *hostep;
|
1312 |
|
|
struct usb_endpoint_descriptor* ep;
|
1313 |
|
|
struct usb_ms_endpoint_descriptor* ms_ep;
|
1314 |
|
|
int i, epidx;
|
1315 |
|
|
|
1316 |
|
|
intf = umidi->iface;
|
1317 |
|
|
if (!intf)
|
1318 |
|
|
return -ENXIO;
|
1319 |
|
|
hostif = &intf->altsetting[0];
|
1320 |
|
|
intfd = get_iface_desc(hostif);
|
1321 |
|
|
ms_header = (struct usb_ms_header_descriptor*)hostif->extra;
|
1322 |
|
|
if (hostif->extralen >= 7 &&
|
1323 |
|
|
ms_header->bLength >= 7 &&
|
1324 |
|
|
ms_header->bDescriptorType == USB_DT_CS_INTERFACE &&
|
1325 |
|
|
ms_header->bDescriptorSubtype == HEADER)
|
1326 |
|
|
snd_printdd(KERN_INFO "MIDIStreaming version %02x.%02x\n",
|
1327 |
|
|
ms_header->bcdMSC[1], ms_header->bcdMSC[0]);
|
1328 |
|
|
else
|
1329 |
|
|
snd_printk(KERN_WARNING "MIDIStreaming interface descriptor not found\n");
|
1330 |
|
|
|
1331 |
|
|
epidx = 0;
|
1332 |
|
|
for (i = 0; i < intfd->bNumEndpoints; ++i) {
|
1333 |
|
|
hostep = &hostif->endpoint[i];
|
1334 |
|
|
ep = get_ep_desc(hostep);
|
1335 |
|
|
if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK &&
|
1336 |
|
|
(ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
|
1337 |
|
|
continue;
|
1338 |
|
|
ms_ep = (struct usb_ms_endpoint_descriptor*)hostep->extra;
|
1339 |
|
|
if (hostep->extralen < 4 ||
|
1340 |
|
|
ms_ep->bLength < 4 ||
|
1341 |
|
|
ms_ep->bDescriptorType != USB_DT_CS_ENDPOINT ||
|
1342 |
|
|
ms_ep->bDescriptorSubtype != MS_GENERAL)
|
1343 |
|
|
continue;
|
1344 |
|
|
if ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
|
1345 |
|
|
if (endpoints[epidx].out_ep) {
|
1346 |
|
|
if (++epidx >= MIDI_MAX_ENDPOINTS) {
|
1347 |
|
|
snd_printk(KERN_WARNING "too many endpoints\n");
|
1348 |
|
|
break;
|
1349 |
|
|
}
|
1350 |
|
|
}
|
1351 |
|
|
endpoints[epidx].out_ep = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
|
1352 |
|
|
if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
|
1353 |
|
|
endpoints[epidx].out_interval = ep->bInterval;
|
1354 |
|
|
else if (snd_usb_get_speed(umidi->chip->dev) == USB_SPEED_LOW)
|
1355 |
|
|
/*
|
1356 |
|
|
* Low speed bulk transfers don't exist, so
|
1357 |
|
|
* force interrupt transfers for devices like
|
1358 |
|
|
* ESI MIDI Mate that try to use them anyway.
|
1359 |
|
|
*/
|
1360 |
|
|
endpoints[epidx].out_interval = 1;
|
1361 |
|
|
endpoints[epidx].out_cables = (1 << ms_ep->bNumEmbMIDIJack) - 1;
|
1362 |
|
|
snd_printdd(KERN_INFO "EP %02X: %d jack(s)\n",
|
1363 |
|
|
ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack);
|
1364 |
|
|
} else {
|
1365 |
|
|
if (endpoints[epidx].in_ep) {
|
1366 |
|
|
if (++epidx >= MIDI_MAX_ENDPOINTS) {
|
1367 |
|
|
snd_printk(KERN_WARNING "too many endpoints\n");
|
1368 |
|
|
break;
|
1369 |
|
|
}
|
1370 |
|
|
}
|
1371 |
|
|
endpoints[epidx].in_ep = ep->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
|
1372 |
|
|
if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
|
1373 |
|
|
endpoints[epidx].in_interval = ep->bInterval;
|
1374 |
|
|
else if (snd_usb_get_speed(umidi->chip->dev) == USB_SPEED_LOW)
|
1375 |
|
|
endpoints[epidx].in_interval = 1;
|
1376 |
|
|
endpoints[epidx].in_cables = (1 << ms_ep->bNumEmbMIDIJack) - 1;
|
1377 |
|
|
snd_printdd(KERN_INFO "EP %02X: %d jack(s)\n",
|
1378 |
|
|
ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack);
|
1379 |
|
|
}
|
1380 |
|
|
}
|
1381 |
|
|
return 0;
|
1382 |
|
|
}
|
1383 |
|
|
|
1384 |
|
|
/*
|
1385 |
|
|
* On Roland devices, use the second alternate setting to be able to use
|
1386 |
|
|
* the interrupt input endpoint.
|
1387 |
|
|
*/
|
1388 |
|
|
static void snd_usbmidi_switch_roland_altsetting(struct snd_usb_midi* umidi)
|
1389 |
|
|
{
|
1390 |
|
|
struct usb_interface* intf;
|
1391 |
|
|
struct usb_host_interface *hostif;
|
1392 |
|
|
struct usb_interface_descriptor* intfd;
|
1393 |
|
|
|
1394 |
|
|
intf = umidi->iface;
|
1395 |
|
|
if (!intf || intf->num_altsetting != 2)
|
1396 |
|
|
return;
|
1397 |
|
|
|
1398 |
|
|
hostif = &intf->altsetting[1];
|
1399 |
|
|
intfd = get_iface_desc(hostif);
|
1400 |
|
|
if (intfd->bNumEndpoints != 2 ||
|
1401 |
|
|
(get_endpoint(hostif, 0)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK ||
|
1402 |
|
|
(get_endpoint(hostif, 1)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
|
1403 |
|
|
return;
|
1404 |
|
|
|
1405 |
|
|
snd_printdd(KERN_INFO "switching to altsetting %d with int ep\n",
|
1406 |
|
|
intfd->bAlternateSetting);
|
1407 |
|
|
usb_set_interface(umidi->chip->dev, intfd->bInterfaceNumber,
|
1408 |
|
|
intfd->bAlternateSetting);
|
1409 |
|
|
}
|
1410 |
|
|
|
1411 |
|
|
/*
|
1412 |
|
|
* Try to find any usable endpoints in the interface.
|
1413 |
|
|
*/
|
1414 |
|
|
static int snd_usbmidi_detect_endpoints(struct snd_usb_midi* umidi,
|
1415 |
|
|
struct snd_usb_midi_endpoint_info* endpoint,
|
1416 |
|
|
int max_endpoints)
|
1417 |
|
|
{
|
1418 |
|
|
struct usb_interface* intf;
|
1419 |
|
|
struct usb_host_interface *hostif;
|
1420 |
|
|
struct usb_interface_descriptor* intfd;
|
1421 |
|
|
struct usb_endpoint_descriptor* epd;
|
1422 |
|
|
int i, out_eps = 0, in_eps = 0;
|
1423 |
|
|
|
1424 |
|
|
if (USB_ID_VENDOR(umidi->chip->usb_id) == 0x0582)
|
1425 |
|
|
snd_usbmidi_switch_roland_altsetting(umidi);
|
1426 |
|
|
|
1427 |
|
|
if (endpoint[0].out_ep || endpoint[0].in_ep)
|
1428 |
|
|
return 0;
|
1429 |
|
|
|
1430 |
|
|
intf = umidi->iface;
|
1431 |
|
|
if (!intf || intf->num_altsetting < 1)
|
1432 |
|
|
return -ENOENT;
|
1433 |
|
|
hostif = intf->cur_altsetting;
|
1434 |
|
|
intfd = get_iface_desc(hostif);
|
1435 |
|
|
|
1436 |
|
|
for (i = 0; i < intfd->bNumEndpoints; ++i) {
|
1437 |
|
|
epd = get_endpoint(hostif, i);
|
1438 |
|
|
if ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK &&
|
1439 |
|
|
(epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT)
|
1440 |
|
|
continue;
|
1441 |
|
|
if (out_eps < max_endpoints &&
|
1442 |
|
|
(epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT) {
|
1443 |
|
|
endpoint[out_eps].out_ep = epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
|
1444 |
|
|
if ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
|
1445 |
|
|
endpoint[out_eps].out_interval = epd->bInterval;
|
1446 |
|
|
++out_eps;
|
1447 |
|
|
}
|
1448 |
|
|
if (in_eps < max_endpoints &&
|
1449 |
|
|
(epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN) {
|
1450 |
|
|
endpoint[in_eps].in_ep = epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
|
1451 |
|
|
if ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
|
1452 |
|
|
endpoint[in_eps].in_interval = epd->bInterval;
|
1453 |
|
|
++in_eps;
|
1454 |
|
|
}
|
1455 |
|
|
}
|
1456 |
|
|
return (out_eps || in_eps) ? 0 : -ENOENT;
|
1457 |
|
|
}
|
1458 |
|
|
|
1459 |
|
|
/*
|
1460 |
|
|
* Detects the endpoints for one-port-per-endpoint protocols.
|
1461 |
|
|
*/
|
1462 |
|
|
static int snd_usbmidi_detect_per_port_endpoints(struct snd_usb_midi* umidi,
|
1463 |
|
|
struct snd_usb_midi_endpoint_info* endpoints)
|
1464 |
|
|
{
|
1465 |
|
|
int err, i;
|
1466 |
|
|
|
1467 |
|
|
err = snd_usbmidi_detect_endpoints(umidi, endpoints, MIDI_MAX_ENDPOINTS);
|
1468 |
|
|
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
|
1469 |
|
|
if (endpoints[i].out_ep)
|
1470 |
|
|
endpoints[i].out_cables = 0x0001;
|
1471 |
|
|
if (endpoints[i].in_ep)
|
1472 |
|
|
endpoints[i].in_cables = 0x0001;
|
1473 |
|
|
}
|
1474 |
|
|
return err;
|
1475 |
|
|
}
|
1476 |
|
|
|
1477 |
|
|
/*
|
1478 |
|
|
* Detects the endpoints and ports of Yamaha devices.
|
1479 |
|
|
*/
|
1480 |
|
|
static int snd_usbmidi_detect_yamaha(struct snd_usb_midi* umidi,
|
1481 |
|
|
struct snd_usb_midi_endpoint_info* endpoint)
|
1482 |
|
|
{
|
1483 |
|
|
struct usb_interface* intf;
|
1484 |
|
|
struct usb_host_interface *hostif;
|
1485 |
|
|
struct usb_interface_descriptor* intfd;
|
1486 |
|
|
uint8_t* cs_desc;
|
1487 |
|
|
|
1488 |
|
|
intf = umidi->iface;
|
1489 |
|
|
if (!intf)
|
1490 |
|
|
return -ENOENT;
|
1491 |
|
|
hostif = intf->altsetting;
|
1492 |
|
|
intfd = get_iface_desc(hostif);
|
1493 |
|
|
if (intfd->bNumEndpoints < 1)
|
1494 |
|
|
return -ENOENT;
|
1495 |
|
|
|
1496 |
|
|
/*
|
1497 |
|
|
* For each port there is one MIDI_IN/OUT_JACK descriptor, not
|
1498 |
|
|
* necessarily with any useful contents. So simply count 'em.
|
1499 |
|
|
*/
|
1500 |
|
|
for (cs_desc = hostif->extra;
|
1501 |
|
|
cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2;
|
1502 |
|
|
cs_desc += cs_desc[0]) {
|
1503 |
|
|
if (cs_desc[1] == USB_DT_CS_INTERFACE) {
|
1504 |
|
|
if (cs_desc[2] == MIDI_IN_JACK)
|
1505 |
|
|
endpoint->in_cables = (endpoint->in_cables << 1) | 1;
|
1506 |
|
|
else if (cs_desc[2] == MIDI_OUT_JACK)
|
1507 |
|
|
endpoint->out_cables = (endpoint->out_cables << 1) | 1;
|
1508 |
|
|
}
|
1509 |
|
|
}
|
1510 |
|
|
if (!endpoint->in_cables && !endpoint->out_cables)
|
1511 |
|
|
return -ENOENT;
|
1512 |
|
|
|
1513 |
|
|
return snd_usbmidi_detect_endpoints(umidi, endpoint, 1);
|
1514 |
|
|
}
|
1515 |
|
|
|
1516 |
|
|
/*
|
1517 |
|
|
* Creates the endpoints and their ports for Midiman devices.
|
1518 |
|
|
*/
|
1519 |
|
|
static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi* umidi,
|
1520 |
|
|
struct snd_usb_midi_endpoint_info* endpoint)
|
1521 |
|
|
{
|
1522 |
|
|
struct snd_usb_midi_endpoint_info ep_info;
|
1523 |
|
|
struct usb_interface* intf;
|
1524 |
|
|
struct usb_host_interface *hostif;
|
1525 |
|
|
struct usb_interface_descriptor* intfd;
|
1526 |
|
|
struct usb_endpoint_descriptor* epd;
|
1527 |
|
|
int cable, err;
|
1528 |
|
|
|
1529 |
|
|
intf = umidi->iface;
|
1530 |
|
|
if (!intf)
|
1531 |
|
|
return -ENOENT;
|
1532 |
|
|
hostif = intf->altsetting;
|
1533 |
|
|
intfd = get_iface_desc(hostif);
|
1534 |
|
|
/*
|
1535 |
|
|
* The various MidiSport devices have more or less random endpoint
|
1536 |
|
|
* numbers, so we have to identify the endpoints by their index in
|
1537 |
|
|
* the descriptor array, like the driver for that other OS does.
|
1538 |
|
|
*
|
1539 |
|
|
* There is one interrupt input endpoint for all input ports, one
|
1540 |
|
|
* bulk output endpoint for even-numbered ports, and one for odd-
|
1541 |
|
|
* numbered ports. Both bulk output endpoints have corresponding
|
1542 |
|
|
* input bulk endpoints (at indices 1 and 3) which aren't used.
|
1543 |
|
|
*/
|
1544 |
|
|
if (intfd->bNumEndpoints < (endpoint->out_cables > 0x0001 ? 5 : 3)) {
|
1545 |
|
|
snd_printdd(KERN_ERR "not enough endpoints\n");
|
1546 |
|
|
return -ENOENT;
|
1547 |
|
|
}
|
1548 |
|
|
|
1549 |
|
|
epd = get_endpoint(hostif, 0);
|
1550 |
|
|
if ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_IN ||
|
1551 |
|
|
(epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT) {
|
1552 |
|
|
snd_printdd(KERN_ERR "endpoint[0] isn't interrupt\n");
|
1553 |
|
|
return -ENXIO;
|
1554 |
|
|
}
|
1555 |
|
|
epd = get_endpoint(hostif, 2);
|
1556 |
|
|
if ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_OUT ||
|
1557 |
|
|
(epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK) {
|
1558 |
|
|
snd_printdd(KERN_ERR "endpoint[2] isn't bulk output\n");
|
1559 |
|
|
return -ENXIO;
|
1560 |
|
|
}
|
1561 |
|
|
if (endpoint->out_cables > 0x0001) {
|
1562 |
|
|
epd = get_endpoint(hostif, 4);
|
1563 |
|
|
if ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) != USB_DIR_OUT ||
|
1564 |
|
|
(epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK) {
|
1565 |
|
|
snd_printdd(KERN_ERR "endpoint[4] isn't bulk output\n");
|
1566 |
|
|
return -ENXIO;
|
1567 |
|
|
}
|
1568 |
|
|
}
|
1569 |
|
|
|
1570 |
|
|
ep_info.out_ep = get_endpoint(hostif, 2)->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
|
1571 |
|
|
ep_info.out_cables = endpoint->out_cables & 0x5555;
|
1572 |
|
|
err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, &umidi->endpoints[0]);
|
1573 |
|
|
if (err < 0)
|
1574 |
|
|
return err;
|
1575 |
|
|
|
1576 |
|
|
ep_info.in_ep = get_endpoint(hostif, 0)->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
|
1577 |
|
|
ep_info.in_interval = get_endpoint(hostif, 0)->bInterval;
|
1578 |
|
|
ep_info.in_cables = endpoint->in_cables;
|
1579 |
|
|
err = snd_usbmidi_in_endpoint_create(umidi, &ep_info, &umidi->endpoints[0]);
|
1580 |
|
|
if (err < 0)
|
1581 |
|
|
return err;
|
1582 |
|
|
|
1583 |
|
|
if (endpoint->out_cables > 0x0001) {
|
1584 |
|
|
ep_info.out_ep = get_endpoint(hostif, 4)->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
|
1585 |
|
|
ep_info.out_cables = endpoint->out_cables & 0xaaaa;
|
1586 |
|
|
err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, &umidi->endpoints[1]);
|
1587 |
|
|
if (err < 0)
|
1588 |
|
|
return err;
|
1589 |
|
|
}
|
1590 |
|
|
|
1591 |
|
|
for (cable = 0; cable < 0x10; ++cable) {
|
1592 |
|
|
if (endpoint->out_cables & (1 << cable))
|
1593 |
|
|
snd_usbmidi_init_substream(umidi, SNDRV_RAWMIDI_STREAM_OUTPUT, cable,
|
1594 |
|
|
&umidi->endpoints[cable & 1].out->ports[cable].substream);
|
1595 |
|
|
if (endpoint->in_cables & (1 << cable))
|
1596 |
|
|
snd_usbmidi_init_substream(umidi, SNDRV_RAWMIDI_STREAM_INPUT, cable,
|
1597 |
|
|
&umidi->endpoints[0].in->ports[cable].substream);
|
1598 |
|
|
}
|
1599 |
|
|
return 0;
|
1600 |
|
|
}
|
1601 |
|
|
|
1602 |
|
|
static struct snd_rawmidi_global_ops snd_usbmidi_ops = {
|
1603 |
|
|
.get_port_info = snd_usbmidi_get_port_info,
|
1604 |
|
|
};
|
1605 |
|
|
|
1606 |
|
|
static int snd_usbmidi_create_rawmidi(struct snd_usb_midi* umidi,
|
1607 |
|
|
int out_ports, int in_ports)
|
1608 |
|
|
{
|
1609 |
|
|
struct snd_rawmidi *rmidi;
|
1610 |
|
|
int err;
|
1611 |
|
|
|
1612 |
|
|
err = snd_rawmidi_new(umidi->chip->card, "USB MIDI",
|
1613 |
|
|
umidi->chip->next_midi_device++,
|
1614 |
|
|
out_ports, in_ports, &rmidi);
|
1615 |
|
|
if (err < 0)
|
1616 |
|
|
return err;
|
1617 |
|
|
strcpy(rmidi->name, umidi->chip->card->shortname);
|
1618 |
|
|
rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT |
|
1619 |
|
|
SNDRV_RAWMIDI_INFO_INPUT |
|
1620 |
|
|
SNDRV_RAWMIDI_INFO_DUPLEX;
|
1621 |
|
|
rmidi->ops = &snd_usbmidi_ops;
|
1622 |
|
|
rmidi->private_data = umidi;
|
1623 |
|
|
rmidi->private_free = snd_usbmidi_rawmidi_free;
|
1624 |
|
|
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_usbmidi_output_ops);
|
1625 |
|
|
snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_usbmidi_input_ops);
|
1626 |
|
|
|
1627 |
|
|
umidi->rmidi = rmidi;
|
1628 |
|
|
return 0;
|
1629 |
|
|
}
|
1630 |
|
|
|
1631 |
|
|
/*
|
1632 |
|
|
* Temporarily stop input.
|
1633 |
|
|
*/
|
1634 |
|
|
void snd_usbmidi_input_stop(struct list_head* p)
|
1635 |
|
|
{
|
1636 |
|
|
struct snd_usb_midi* umidi;
|
1637 |
|
|
int i;
|
1638 |
|
|
|
1639 |
|
|
umidi = list_entry(p, struct snd_usb_midi, list);
|
1640 |
|
|
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
|
1641 |
|
|
struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i];
|
1642 |
|
|
if (ep->in)
|
1643 |
|
|
usb_kill_urb(ep->in->urb);
|
1644 |
|
|
}
|
1645 |
|
|
}
|
1646 |
|
|
|
1647 |
|
|
static void snd_usbmidi_input_start_ep(struct snd_usb_midi_in_endpoint* ep)
|
1648 |
|
|
{
|
1649 |
|
|
if (ep) {
|
1650 |
|
|
struct urb* urb = ep->urb;
|
1651 |
|
|
urb->dev = ep->umidi->chip->dev;
|
1652 |
|
|
snd_usbmidi_submit_urb(urb, GFP_KERNEL);
|
1653 |
|
|
}
|
1654 |
|
|
}
|
1655 |
|
|
|
1656 |
|
|
/*
|
1657 |
|
|
* Resume input after a call to snd_usbmidi_input_stop().
|
1658 |
|
|
*/
|
1659 |
|
|
void snd_usbmidi_input_start(struct list_head* p)
|
1660 |
|
|
{
|
1661 |
|
|
struct snd_usb_midi* umidi;
|
1662 |
|
|
int i;
|
1663 |
|
|
|
1664 |
|
|
umidi = list_entry(p, struct snd_usb_midi, list);
|
1665 |
|
|
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i)
|
1666 |
|
|
snd_usbmidi_input_start_ep(umidi->endpoints[i].in);
|
1667 |
|
|
}
|
1668 |
|
|
|
1669 |
|
|
/*
|
1670 |
|
|
* Creates and registers everything needed for a MIDI streaming interface.
|
1671 |
|
|
*/
|
1672 |
|
|
int snd_usb_create_midi_interface(struct snd_usb_audio* chip,
|
1673 |
|
|
struct usb_interface* iface,
|
1674 |
|
|
const struct snd_usb_audio_quirk* quirk)
|
1675 |
|
|
{
|
1676 |
|
|
struct snd_usb_midi* umidi;
|
1677 |
|
|
struct snd_usb_midi_endpoint_info endpoints[MIDI_MAX_ENDPOINTS];
|
1678 |
|
|
int out_ports, in_ports;
|
1679 |
|
|
int i, err;
|
1680 |
|
|
|
1681 |
|
|
umidi = kzalloc(sizeof(*umidi), GFP_KERNEL);
|
1682 |
|
|
if (!umidi)
|
1683 |
|
|
return -ENOMEM;
|
1684 |
|
|
umidi->chip = chip;
|
1685 |
|
|
umidi->iface = iface;
|
1686 |
|
|
umidi->quirk = quirk;
|
1687 |
|
|
umidi->usb_protocol_ops = &snd_usbmidi_standard_ops;
|
1688 |
|
|
init_timer(&umidi->error_timer);
|
1689 |
|
|
umidi->error_timer.function = snd_usbmidi_error_timer;
|
1690 |
|
|
umidi->error_timer.data = (unsigned long)umidi;
|
1691 |
|
|
|
1692 |
|
|
/* detect the endpoint(s) to use */
|
1693 |
|
|
memset(endpoints, 0, sizeof(endpoints));
|
1694 |
|
|
switch (quirk ? quirk->type : QUIRK_MIDI_STANDARD_INTERFACE) {
|
1695 |
|
|
case QUIRK_MIDI_STANDARD_INTERFACE:
|
1696 |
|
|
err = snd_usbmidi_get_ms_info(umidi, endpoints);
|
1697 |
|
|
if (chip->usb_id == USB_ID(0x0763, 0x0150)) /* M-Audio Uno */
|
1698 |
|
|
umidi->usb_protocol_ops =
|
1699 |
|
|
&snd_usbmidi_maudio_broken_running_status_ops;
|
1700 |
|
|
break;
|
1701 |
|
|
case QUIRK_MIDI_FIXED_ENDPOINT:
|
1702 |
|
|
memcpy(&endpoints[0], quirk->data,
|
1703 |
|
|
sizeof(struct snd_usb_midi_endpoint_info));
|
1704 |
|
|
err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1);
|
1705 |
|
|
break;
|
1706 |
|
|
case QUIRK_MIDI_YAMAHA:
|
1707 |
|
|
err = snd_usbmidi_detect_yamaha(umidi, &endpoints[0]);
|
1708 |
|
|
break;
|
1709 |
|
|
case QUIRK_MIDI_MIDIMAN:
|
1710 |
|
|
umidi->usb_protocol_ops = &snd_usbmidi_midiman_ops;
|
1711 |
|
|
memcpy(&endpoints[0], quirk->data,
|
1712 |
|
|
sizeof(struct snd_usb_midi_endpoint_info));
|
1713 |
|
|
err = 0;
|
1714 |
|
|
break;
|
1715 |
|
|
case QUIRK_MIDI_NOVATION:
|
1716 |
|
|
umidi->usb_protocol_ops = &snd_usbmidi_novation_ops;
|
1717 |
|
|
err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
|
1718 |
|
|
break;
|
1719 |
|
|
case QUIRK_MIDI_RAW:
|
1720 |
|
|
umidi->usb_protocol_ops = &snd_usbmidi_raw_ops;
|
1721 |
|
|
err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
|
1722 |
|
|
break;
|
1723 |
|
|
case QUIRK_MIDI_EMAGIC:
|
1724 |
|
|
umidi->usb_protocol_ops = &snd_usbmidi_emagic_ops;
|
1725 |
|
|
memcpy(&endpoints[0], quirk->data,
|
1726 |
|
|
sizeof(struct snd_usb_midi_endpoint_info));
|
1727 |
|
|
err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1);
|
1728 |
|
|
break;
|
1729 |
|
|
case QUIRK_MIDI_CME:
|
1730 |
|
|
umidi->usb_protocol_ops = &snd_usbmidi_cme_ops;
|
1731 |
|
|
err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints);
|
1732 |
|
|
break;
|
1733 |
|
|
default:
|
1734 |
|
|
snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type);
|
1735 |
|
|
err = -ENXIO;
|
1736 |
|
|
break;
|
1737 |
|
|
}
|
1738 |
|
|
if (err < 0) {
|
1739 |
|
|
kfree(umidi);
|
1740 |
|
|
return err;
|
1741 |
|
|
}
|
1742 |
|
|
|
1743 |
|
|
/* create rawmidi device */
|
1744 |
|
|
out_ports = 0;
|
1745 |
|
|
in_ports = 0;
|
1746 |
|
|
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) {
|
1747 |
|
|
out_ports += snd_usbmidi_count_bits(endpoints[i].out_cables);
|
1748 |
|
|
in_ports += snd_usbmidi_count_bits(endpoints[i].in_cables);
|
1749 |
|
|
}
|
1750 |
|
|
err = snd_usbmidi_create_rawmidi(umidi, out_ports, in_ports);
|
1751 |
|
|
if (err < 0) {
|
1752 |
|
|
kfree(umidi);
|
1753 |
|
|
return err;
|
1754 |
|
|
}
|
1755 |
|
|
|
1756 |
|
|
/* create endpoint/port structures */
|
1757 |
|
|
if (quirk && quirk->type == QUIRK_MIDI_MIDIMAN)
|
1758 |
|
|
err = snd_usbmidi_create_endpoints_midiman(umidi, &endpoints[0]);
|
1759 |
|
|
else
|
1760 |
|
|
err = snd_usbmidi_create_endpoints(umidi, endpoints);
|
1761 |
|
|
if (err < 0) {
|
1762 |
|
|
snd_usbmidi_free(umidi);
|
1763 |
|
|
return err;
|
1764 |
|
|
}
|
1765 |
|
|
|
1766 |
|
|
list_add(&umidi->list, &umidi->chip->midi_list);
|
1767 |
|
|
|
1768 |
|
|
for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i)
|
1769 |
|
|
snd_usbmidi_input_start_ep(umidi->endpoints[i].in);
|
1770 |
|
|
return 0;
|
1771 |
|
|
}
|
1772 |
|
|
|
1773 |
|
|
EXPORT_SYMBOL(snd_usb_create_midi_interface);
|
1774 |
|
|
EXPORT_SYMBOL(snd_usbmidi_input_stop);
|
1775 |
|
|
EXPORT_SYMBOL(snd_usbmidi_input_start);
|
1776 |
|
|
EXPORT_SYMBOL(snd_usbmidi_disconnect);
|