diff options
Diffstat (limited to 'sys/i386/isa/sound/sb_midi.c')
| -rw-r--r-- | sys/i386/isa/sound/sb_midi.c | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/sys/i386/isa/sound/sb_midi.c b/sys/i386/isa/sound/sb_midi.c deleted file mode 100644 index 3d773be..0000000 --- a/sys/i386/isa/sound/sb_midi.c +++ /dev/null @@ -1,211 +0,0 @@ -/* - * sound/sb_dsp.c - * - * The low level driver for the SoundBlaster DS chips. - * - * Copyright by Hannu Savolainen 1993 - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. 2. - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR - * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - */ - -#include <i386/isa/sound/sound_config.h> - -#if (NSND > 0) && defined(CONFIG_SB) && defined(CONFIG_MIDI) - -#include <i386/isa/sound/sbcard.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. - */ - -extern int sb_dsp_ok; /* Set to 1 atfer successful initialization */ -extern int sbc_base; - -extern int sb_midi_mode; -extern int sb_midi_busy; /* 1 if the process has output to MIDI */ -extern int sb_dsp_busy; -extern int sb_dsp_highspeed; - -extern volatile int sb_irq_mode; -extern int sb_duplex_midi; -extern int sb_intr_active; -static int input_opened = 0; -static int my_dev; - -extern sound_os_info *sb_osp; - -static void (*midi_input_intr) (int dev, u_char data); - -static int -sb_midi_open(int dev, int mode, void (*input) (int dev, u_char data), - void (*output) (int dev)) -{ - int ret; - - if (!sb_dsp_ok) { - printf("SB Error: MIDI hardware not installed\n"); - return -(ENXIO); - } - if (sb_midi_busy) - return -(EBUSY); - - if (mode != OPEN_WRITE && !sb_duplex_midi) { - if (num_midis == 1) - printf("SoundBlaster: Midi input not currently supported\n"); - return -(EPERM); - } - sb_midi_mode = NORMAL_MIDI; - if (mode != OPEN_WRITE) { - if (sb_dsp_busy || sb_intr_active) - return -(EBUSY); - sb_midi_mode = UART_MIDI; - } - if (sb_dsp_highspeed) { - printf("SB Error: Midi output not possible during stereo or high speed audio\n"); - return -(EBUSY); - } - if (sb_midi_mode == UART_MIDI) { - sb_irq_mode = IMODE_MIDI; - - sb_reset_dsp(); - - if (!sb_dsp_command(0x35)) - return -(EIO); /* Enter the UART mode */ - sb_intr_active = 1; - - input_opened = 1; - midi_input_intr = input; - } - sb_midi_busy = 1; - - return 0; -} - -static void -sb_midi_close(int dev) -{ - if (sb_midi_mode == UART_MIDI) { - sb_reset_dsp(); /* The only way to kill the UART mode */ - } - sb_intr_active = 0; - sb_midi_busy = 0; - input_opened = 0; -} - -static int -sb_midi_out(int dev, u_char midi_byte) -{ - u_long flags; - - if (sb_midi_mode == NORMAL_MIDI) { - flags = splhigh(); - if (sb_dsp_command(0x38)) - sb_dsp_command(midi_byte); - else - printf("SB Error: Unable to send a MIDI byte\n"); - splx(flags); - } else - sb_dsp_command(midi_byte); /* UART write */ - - return 1; -} - -static int -sb_midi_start_read(int dev) -{ - if (sb_midi_mode != UART_MIDI) { - printf("SoundBlaster: MIDI input not implemented.\n"); - return -(EPERM); - } - return 0; -} - -static int -sb_midi_end_read(int dev) -{ - if (sb_midi_mode == UART_MIDI) { - sb_reset_dsp(); - sb_intr_active = 0; - } - return 0; -} - -static int -sb_midi_ioctl(int dev, u_int cmd, ioctl_arg arg) -{ - return -(EPERM); -} - -void -sb_midi_interrupt(int dummy) -{ - u_long flags; - u_char data; - - flags = splhigh(); - - data = inb(DSP_READ); - if (input_opened) - midi_input_intr(my_dev, data); - - splx(flags); -} - -#define MIDI_SYNTH_NAME "SoundBlaster Midi" -#define MIDI_SYNTH_CAPS 0 -#include <i386/isa/sound/midi_synth.h> - -static struct midi_operations sb_midi_operations = -{ - {"SoundBlaster", 0, 0, SNDCARD_SB}, - &std_midi_synth, - {0}, - sb_midi_open, - sb_midi_close, - sb_midi_ioctl, - sb_midi_out, - sb_midi_start_read, - sb_midi_end_read, - NULL, /* Kick */ - NULL, /* command */ - NULL, /* buffer_status */ - NULL -}; - -void -sb_midi_init(int model) -{ - if (num_midis >= MAX_MIDI_DEV) { - printf("Sound: Too many midi devices detected\n"); - return; - } - std_midi_synth.midi_dev = num_midis; - my_dev = num_midis; - midi_devs[num_midis++] = &sb_midi_operations; -} - -#endif |
