/* * Linux driver for TerraTec DMX 6Fire USB * * Rawmidi driver * * Author: Torsten Schenk * Created: Jan 01, 2011 * Copyright: (C) Torsten Schenk * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ #include #include "midi.h" #include "chip.h" #include "comm.h" enum { MIDI_BUFSIZE = 64 }; static void usb6fire_midi_out_handler(struct urb *urb) { struct midi_runtime *rt = urb->context; int ret; unsigned long flags; spin_lock_irqsave(&rt->out_lock, flags); if (rt->out) { ret = snd_rawmidi_transmit(rt->out, rt->out_buffer + 4, MIDI_BUFSIZE - 4); if (ret > 0) { /* more data available, send next packet */ rt->out_buffer[1] = ret + 2; rt->out_buffer[3] = rt->out_serial++; urb->transfer_buffer_length = ret + 4; ret = usb_submit_urb(urb, GFP_ATOMIC); if (ret < 0) dev_err(&urb->dev->dev, "midi out urb submit failed: %d\n", ret); } else /* no more data to transmit */ rt->out = NULL; } spin_unlock_irqrestore(&rt->out_lock, flags); } static void usb6fire_midi_in_received( struct midi_runtime *rt, u8 *data, int length) { unsigned long flags; spin_lock_irqsave(&rt->in_lock, flags); if (rt->in) snd_rawmidi_receive(rt->in, data, length); spin_unlock_irqrestore(&rt->in_lock, flags); } static int usb6fire_midi_out_open(struct snd_rawmidi_substream *alsa_sub) { return 0; } static int usb6fire_midi_out_close(struct snd_rawmidi_substream *alsa_sub) { return 0; } static void usb6fire_midi_out_trigger( struct snd_rawmidi_substream *alsa_sub, int up) { struct midi_runtime *rt = alsa_sub->rmidi->private_data; struct urb *urb = &rt->out_urb; __s8 ret; unsigned long flags; spin_lock_irqsave(&rt->out_lock, flags); if (up) { /* start transfer */ if (rt->out) { /* we are already transmitting so just return */ spin_unlock_irqrestore(&rt->out_lock, flags); return; } ret = snd_rawmidi_transmit(alsa_sub, rt->out_buffer + 4, MIDI_BUFSIZE - 4); if (ret > 0) { rt->out_buffer[1] = ret + 2; rt->out_buffer[3] = rt->out_serial++; urb->transfer_buffer_length = ret + 4; ret = usb_submit_urb(urb, GFP_ATOMIC); if (ret < 0) dev_err(&urb->dev->dev, "midi out urb submit failed: %d\n", ret); else rt->out = alsa_sub; } } else if (rt->out == alsa_sub) rt->out = NULL; spin_unlock_irqrestore(&rt->out_lock, flags); } static void usb6fire_midi_out_drain(struct snd_rawmidi_substream *alsa_sub) { struct midi_runtime *rt = alsa_sub->rmidi->private_data; int retry = 0; while (rt->out && retry++ < 100) msleep(10); } static int usb6fire_midi_in_open(struct snd_rawmidi_substream *alsa_sub) { return 0; } static int usb6fire_midi_in_close(struct snd_rawmidi_substream *alsa_sub) { return 0; } static void usb6fire_midi_in_trigger( struct snd_rawmidi_substream *alsa_sub, int up) { struct midi_runtime *rt = alsa_sub->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&rt->in_lock, flags); if (up) rt->in = alsa_sub; else rt->in = NULL; spin_unlock_irqrestore(&rt->in_lock, flags); } static struct snd_rawmidi_ops out_ops = { .open = usb6fire_midi_out_open, .close = usb6fire_midi_out_close, .trigger = usb6fire_midi_out_trigger, .drain = usb6fire_midi_out_drain }; static struct snd_rawmidi_ops in_ops = { .open = usb6fire_midi_in_open, .close = usb6fire_midi_in_close, .trigger = usb6fire_midi_in_trigger }; int usb6fire_midi_init(struct sfire_chip *chip) { int ret; struct midi_runtime *rt = kzalloc(sizeof(struct midi_runtime), GFP_KERNEL); struct comm_runtime *comm_rt = chip->comm; if (!rt) return -ENOMEM; rt->out_buffer = kzalloc(MIDI_BUFSIZE, GFP_KERNEL); if (!rt->out_buffer) { kfree(rt); return -ENOMEM; } rt->chip = chip; rt->in_received = usb6fire_midi_in_received; rt->out_buffer[0] = 0x80; /* 'send midi' command */ rt->out_buffer[1] = 0x00; /* size of data */ rt->out_buffer[2] = 0x00; /* always 0 */ spin_lock_init(&rt->in_lock); spin_lock_init(&rt->out_lock); comm_rt->init_urb(comm_rt, &rt->out_urb, rt->out_buffer, rt, usb6fire_midi_out_handler); ret = snd_rawmidi_new(chip->card, "6FireUSB", 0, 1, 1, &rt->instance); if (ret < 0) { kfree(rt->out_buffer); kfree(rt); dev_err(&chip->dev->dev, "unable to create midi.\n"); return ret; } rt->instance->private_data = rt; strcpy(rt->instance->name, "DMX6FireUSB MIDI"); rt->instance->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | SNDRV_RAWMIDI_INFO_INPUT | SNDRV_RAWMIDI_INFO_DUPLEX; snd_rawmidi_set_ops(rt->instance, SNDRV_RAWMIDI_STREAM_OUTPUT, &out_ops); snd_rawmidi_set_ops(rt->instance, SNDRV_RAWMIDI_STREAM_INPUT, &in_ops); chip->midi = rt; return 0; } void usb6fire_midi_abort(struct sfire_chip *chip) { struct midi_runtime *rt = chip->midi; if (rt) usb_poison_urb(&rt->out_urb); } void usb6fire_midi_destroy(struct sfire_chip *chip) { struct midi_runtime *rt = chip->midi; kfree(rt->out_buffer); kfree(rt); chip->midi = NULL; } '>include/net parent49def1853334396f948dcb4cedb9347abb318df5 (diff)
USB: serial: qcserial: add Dell DW5570 QDL
The Dell DW5570 is a re-branded Sierra Wireless MC8805 which will by default boot with vid 0x413c and pid 0x81a3. When triggered QDL download mode, the device switches to pid 0x81a6 and provides the standard TTY used for firmware upgrade. Cc: <stable@vger.kernel.org> Signed-off-by: Aleksander Morgado <aleksander@aleksander.es> Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'include/net')