/* * sound/oss/sb_midi.c * * The low level driver for the Sound Blaster DS chips. * * * Copyright (C) by Hannu Savolainen 1993-1997 * * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) * Version 2 (June 1991). See the "COPYING" file distributed with this software * for more info. */ #include #include #include "sound_config.h" #include "sb.h" #undef SB_TEST_IRQ /* * The DSP channel can be used either for input or output. Variable * 'sb_irq_mode' will be set when the program calls read or write first time * after open. Current version doesn't support mode changes without closing * and reopening the device. Support for this feature may be implemented in a * future version of this driver. */ static int sb_midi_open(int dev, int mode, void (*input) (int dev, unsigned char data), void (*output) (int dev) ) { sb_devc *devc = midi_devs[dev]->devc; unsigned long flags; if (devc == NULL) return -ENXIO; spin_lock_irqsave(&devc->lock, flags); if (devc->opened) { spin_unlock_irqrestore(&devc->lock, flags); return -EBUSY; } devc->opened = 1; spin_unlock_irqrestore(&devc->lock, flags); devc->irq_mode = IMODE_MIDI; devc->midi_broken = 0; sb_dsp_reset(devc); if (!sb_dsp_command(devc, 0x35)) /* Start MIDI UART mode */ { devc->opened = 0; return -EIO; } devc->intr_active = 1; if (mode & OPEN_READ) { devc->input_opened = 1; devc->midi_input_intr = input; } return 0; } static void sb_midi_close(int dev) { sb_devc *devc = midi_devs[dev]->devc; unsigned long flags; if (devc == NULL) return; spin_lock_irqsave(&devc->lock, flags); sb_dsp_reset(devc); devc->intr_active = 0; devc->input_opened = 0; devc->opened = 0; spin_unlock_irqrestore(&devc->lock, flags); } static int sb_midi_out(int dev, unsigned char midi_byte) { sb_devc *devc = midi_devs[dev]->devc; if (devc == NULL) return 1; if (devc->midi_broken) return 1; if (!sb_dsp_command(devc, midi_byte)) { devc->midi_broken = 1; return 1; } return 1; } static int sb_midi_start_read(int dev) { return 0; } static int sb_midi_end_read(int dev) { sb_devc *devc = midi_devs[dev]->devc; if (devc == NULL) return -ENXIO; sb_dsp_reset(devc); devc->intr_active = 0; return 0; } static int sb_midi_ioctl(int dev, unsigned cmd, void __user *arg) { return -EINVAL; } void sb_midi_interrupt(sb_devc * devc) { unsigned long flags; unsigned char data; if (devc == NULL) return; spin_lock_irqsave(&devc->lock, flags); data = inb(DSP_READ); if (devc->input_opened) devc->midi_input_intr(devc->my_mididev, data); spin_unlock_irqrestore(&devc->lock, flags); } #define MIDI_SYNTH_NAME "Sound Blaster Midi" #define MIDI_SYNTH_CAPS 0 #include "midi_synth.h" static struct midi_operations sb_midi_operations = { .owner = THIS_MODULE, .info = {"Sound Blaster", 0, 0, SNDCARD_SB}, .converter = &std_midi_synth, .in_info = {0}, .open = sb_midi_open, .close = sb_midi_close, .ioctl = sb_midi_ioctl, .outputc = sb_midi_out, .start_read = sb_midi_start_read, .end_read = sb_midi_end_read, }; void sb_dsp_midi_init(sb_devc * devc, struct module *owner) { int dev; if (devc->model < 2) /* No MIDI support for SB 1.x */ return; dev = sound_alloc_mididev(); if (dev == -1) { printk(KERN_ERR "sb_midi: too many MIDI devices detected\n"); return; } std_midi_synth.midi_dev = devc->my_mididev = dev; midi_devs[dev] = kmalloc(sizeof(struct midi_operations), GFP_KERNEL); if (midi_devs[dev] == NULL) { printk(KERN_WARNING "Sound Blaster: failed to allocate MIDI memory.\n"); sound_unload_mididev(dev); return; } memcpy((char *) midi_devs[dev], (char *) &sb_midi_operations, sizeof(struct midi_operations)); if (owner) midi_devs[dev]->owner = owner; midi_devs[dev]->devc = devc; midi_devs[dev]->converter = kmalloc(sizeof(struct synth_operations), GFP_KERNEL); if (midi_devs[dev]->converter == NULL) { printk(KERN_WARNING "Sound Blaster: failed to allocate MIDI memory.\n"); kfree(midi_devs[dev]); sound_unload_mididev(dev); return; } memcpy((char *) midi_devs[dev]->converter, (char *) &std_midi_synth, sizeof(struct synth_operations)); midi_devs[dev]->converter->id = "SBMIDI"; sequencer_init(); } >mode:
authorAleksander Morgado <aleksander@aleksander.es>2017-01-18 21:31:31 +0100
committerJohan Hovold <johan@kernel.org>2017-01-19 09:08:37 +0100
commit24d615a694d649aa2e167c3f97f62bdad07e3f84 (patch)
tree2fe33c115bdec6bf4b01e27afd90bb16fa668e22 /net/ceph/Kconfig
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 'net/ceph/Kconfig')