/* * digi00x-midi.h - a part of driver for Digidesign Digi 002/003 family * * Copyright (c) 2014-2015 Takashi Sakamoto * * Licensed under the terms of the GNU General Public License, version 2. */ #include "digi00x.h" static int midi_phys_open(struct snd_rawmidi_substream *substream) { struct snd_dg00x *dg00x = substream->rmidi->private_data; int err; err = snd_dg00x_stream_lock_try(dg00x); if (err < 0) return err; mutex_lock(&dg00x->mutex); dg00x->substreams_counter++; err = snd_dg00x_stream_start_duplex(dg00x, 0); mutex_unlock(&dg00x->mutex); if (err < 0) snd_dg00x_stream_lock_release(dg00x); return err; } static int midi_phys_close(struct snd_rawmidi_substream *substream) { struct snd_dg00x *dg00x = substream->rmidi->private_data; mutex_lock(&dg00x->mutex); dg00x->substreams_counter--; snd_dg00x_stream_stop_duplex(dg00x); mutex_unlock(&dg00x->mutex); snd_dg00x_stream_lock_release(dg00x); return 0; } static void midi_phys_capture_trigger(struct snd_rawmidi_substream *substream, int up) { struct snd_dg00x *dg00x = substream->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&dg00x->lock, flags); if (up) amdtp_dot_midi_trigger(&dg00x->tx_stream, substream->number, substream); else amdtp_dot_midi_trigger(&dg00x->tx_stream, substream->number, NULL); spin_unlock_irqrestore(&dg00x->lock, flags); } static void midi_phys_playback_trigger(struct snd_rawmidi_substream *substream, int up) { struct snd_dg00x *dg00x = substream->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&dg00x->lock, flags); if (up) amdtp_dot_midi_trigger(&dg00x->rx_stream, substream->number, substream); else amdtp_dot_midi_trigger(&dg00x->rx_stream, substream->number, NULL); spin_unlock_irqrestore(&dg00x->lock, flags); } static struct snd_rawmidi_ops midi_phys_capture_ops = { .open = midi_phys_open, .close = midi_phys_close, .trigger = midi_phys_capture_trigger, }; static struct snd_rawmidi_ops midi_phys_playback_ops = { .open = midi_phys_open, .close = midi_phys_close, .trigger = midi_phys_playback_trigger, }; static int midi_ctl_open(struct snd_rawmidi_substream *substream) { /* Do nothing. */ return 0; } static int midi_ctl_capture_close(struct snd_rawmidi_substream *substream) { /* Do nothing. */ return 0; } static int midi_ctl_playback_close(struct snd_rawmidi_substream *substream) { struct snd_dg00x *dg00x = substream->rmidi->private_data; snd_fw_async_midi_port_finish(&dg00x->out_control); return 0; } static void midi_ctl_capture_trigger(struct snd_rawmidi_substream *substream, int up) { struct snd_dg00x *dg00x = substream->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&dg00x->lock, flags); if (up) dg00x->in_control = substream; else dg00x->in_control = NULL; spin_unlock_irqrestore(&dg00x->lock, flags); } static void midi_ctl_playback_trigger(struct snd_rawmidi_substream *substream, int up) { struct snd_dg00x *dg00x = substream->rmidi->private_data; unsigned long flags; spin_lock_irqsave(&dg00x->lock, flags); if (up) snd_fw_async_midi_port_run(&dg00x->out_control, substream); spin_unlock_irqrestore(&dg00x->lock, flags); } static struct snd_rawmidi_ops midi_ctl_capture_ops = { .open = midi_ctl_open, .close = midi_ctl_capture_close, .trigger = midi_ctl_capture_trigger, }; static struct snd_rawmidi_ops midi_ctl_playback_ops = { .open = midi_ctl_open, .close = midi_ctl_playback_close, .trigger = midi_ctl_playback_trigger, }; static void set_midi_substream_names(struct snd_dg00x *dg00x, struct snd_rawmidi_str *str, bool is_ctl) { struct snd_rawmidi_substream *subs; list_for_each_entry(subs, &str->substreams, list) { if (!is_ctl) snprintf(subs->name, sizeof(subs->name), "%s MIDI %d", dg00x->card->shortname, subs->number + 1); else /* This port is for asynchronous transaction. */ snprintf(subs->name, sizeof(subs->name), "%s control", dg00x->card->shortname); } } int snd_dg00x_create_midi_devices(struct snd_dg00x *dg00x) { struct snd_rawmidi *rmidi[2]; struct snd_rawmidi_str *str; unsigned int i; int err; /* Add physical midi ports. */ err = snd_rawmidi_new(dg00x->card, dg00x->card->driver, 0, DOT_MIDI_OUT_PORTS, DOT_MIDI_IN_PORTS, &rmidi[0]); if (err < 0) return err; snprintf(rmidi[0]->name, sizeof(rmidi[0]->name), "%s MIDI", dg00x->card->shortname); snd_rawmidi_set_ops(rmidi[0], SNDRV_RAWMIDI_STREAM_INPUT, &midi_phys_capture_ops); snd_rawmidi_set_ops(rmidi[0], SNDRV_RAWMIDI_STREAM_OUTPUT, &midi_phys_playback_ops); /* Add a pair of control midi ports. */ err = snd_rawmidi_new(dg00x->card, dg00x->card->driver, 1, 1, 1, &rmidi[1]); if (err < 0) return err; snprintf(rmidi[1]->name, sizeof(rmidi[1]->name), "%s control", dg00x->card->shortname); snd_rawmidi_set_ops(rmidi[1], SNDRV_RAWMIDI_STREAM_INPUT, &midi_ctl_capture_ops); snd_rawmidi_set_ops(rmidi[1], SNDRV_RAWMIDI_STREAM_OUTPUT, &midi_ctl_playback_ops); for (i = 0; i < ARRAY_SIZE(rmidi); i++) { rmidi[i]->private_data = dg00x; rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; str = &rmidi[i]->streams[SNDRV_RAWMIDI_STREAM_INPUT]; set_midi_substream_names(dg00x, str, i); rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; str = &rmidi[i]->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]; set_midi_substream_names(dg00x, str, i); rmidi[i]->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX; } return 0; } 6ce2c'>d5adbfcd5f7bcc6fa58a41c5c5ada0e5c826ce2c (diff)parent7c2cf1c4615cc2f576d0604406cdf0065f00b83b (diff)
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu: - use-after-free in algif_aead - modular aesni regression when pcbc is modular but absent - bug causing IO page faults in ccp - double list add in ccp - NULL pointer dereference in qat (two patches) - panic in chcr - NULL pointer dereference in chcr - out-of-bound access in chcr * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: chcr - Fix key length for RFC4106 crypto: algif_aead - Fix kernel panic on list_del crypto: aesni - Fix failure when pcbc module is absent crypto: ccp - Fix double add when creating new DMA command crypto: ccp - Fix DMA operations when IOMMU is enabled crypto: chcr - Check device is allocated before use crypto: chcr - Fix panic on dma_unmap_sg crypto: qat - zero esram only for DH85x devices crypto: qat - fix bar discovery for c62x
Diffstat (limited to 'net/l2tp/l2tp_ip.c')