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-rw-r--r--sys/i386/isa/sound/pas2_midi.c285
1 files changed, 0 insertions, 285 deletions
diff --git a/sys/i386/isa/sound/pas2_midi.c b/sys/i386/isa/sound/pas2_midi.c
deleted file mode 100644
index 006b7d4c..0000000
--- a/sys/i386/isa/sound/pas2_midi.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * sound/pas2_midi.c
- *
- * The low level driver for the PAS Midi Interface.
- *
- * 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 defined(CONFIG_PAS) && defined(CONFIG_MIDI)
-#include <i386/isa/sound/pas_hw.h>
-
-static int midi_busy = 0, input_opened = 0;
-static int my_dev;
-static volatile int ofifo_bytes = 0;
-
-static u_char tmp_queue[256];
-static volatile int qlen;
-static volatile u_char qhead, qtail;
-
-static void (*midi_input_intr) (int dev, u_char data);
-
-static int
-pas_midi_open(int dev, int mode,
- void (*input) (int dev, u_char data),
- void (*output) (int dev)
-)
-{
- int err;
- u_long flags;
- u_char ctrl;
-
-
- if (midi_busy) {
- printf("PAS2: Midi busy\n");
- return -(EBUSY);
- }
- /*
- * Reset input and output FIFO pointers
- */
- pas_write(M_C_RESET_INPUT_FIFO | M_C_RESET_OUTPUT_FIFO,
- MIDI_CONTROL);
-
- flags = splhigh();
-
- if ((err = pas_set_intr(I_M_MIDI_IRQ_ENABLE)) < 0)
- return err;
-
- /*
- * Enable input available and output FIFO empty interrupts
- */
-
- ctrl = 0;
- input_opened = 0;
- midi_input_intr = input;
-
- if (mode == OPEN_READ || mode == OPEN_READWRITE) {
- ctrl |= M_C_ENA_INPUT_IRQ; /* Enable input */
- input_opened = 1;
- }
- if (mode == OPEN_WRITE || mode == OPEN_READWRITE) {
- ctrl |= M_C_ENA_OUTPUT_IRQ | /* Enable output */
- M_C_ENA_OUTPUT_HALF_IRQ;
- }
- pas_write(ctrl,
- MIDI_CONTROL);
-
- /*
- * Acknowledge any pending interrupts
- */
-
- pas_write(0xff, MIDI_STATUS);
- ofifo_bytes = 0;
-
- splx(flags);
-
- midi_busy = 1;
- qlen = qhead = qtail = 0;
- return 0;
-}
-
-static void
-pas_midi_close(int dev)
-{
-
- /*
- * Reset FIFO pointers, disable intrs
- */
- pas_write(M_C_RESET_INPUT_FIFO | M_C_RESET_OUTPUT_FIFO, MIDI_CONTROL);
-
- pas_remove_intr(I_M_MIDI_IRQ_ENABLE);
- midi_busy = 0;
-}
-
-static int
-dump_to_midi(u_char midi_byte)
-{
- int fifo_space, x;
-
- fifo_space = ((x = pas_read(MIDI_FIFO_STATUS)) >> 4) & 0x0f;
-
- if (fifo_space == 15 || (fifo_space < 2 && ofifo_bytes > 13)) { /* Fifo full */
- return 0; /* Upper layer will call again */
- }
- ofifo_bytes++;
-
- pas_write(midi_byte, MIDI_DATA);
-
- return 1;
-}
-
-static int
-pas_midi_out(int dev, u_char midi_byte)
-{
-
- u_long flags;
-
- /*
- * Drain the local queue first
- */
-
- flags = splhigh();
-
- while (qlen && dump_to_midi(tmp_queue[qhead])) {
- qlen--;
- qhead++;
- }
-
- splx(flags);
-
- /*
- * Output the byte if the local queue is empty.
- */
-
- if (!qlen)
- if (dump_to_midi(midi_byte))
- return 1; /* OK */
-
- /*
- * Put to the local queue
- */
-
- if (qlen >= 256)
- return 0; /* Local queue full */
-
- flags = splhigh();
-
- tmp_queue[qtail] = midi_byte;
- qlen++;
- qtail++;
-
- splx(flags);
-
- return 1;
-}
-
-static int
-pas_midi_start_read(int dev)
-{
- return 0;
-}
-
-static int
-pas_midi_end_read(int dev)
-{
- return 0;
-}
-
-static int
-pas_midi_ioctl(int dev, u_int cmd, ioctl_arg arg)
-{
- return -(EINVAL);
-}
-
-static void
-pas_midi_kick(int dev)
-{
- ofifo_bytes = 0;
-}
-
-static int
-pas_buffer_status(int dev)
-{
- return qlen;
-}
-
-#define MIDI_SYNTH_NAME "Pro Audio Spectrum Midi"
-#define MIDI_SYNTH_CAPS SYNTH_CAP_INPUT
-#include <i386/isa/sound/midi_synth.h>
-
-static struct midi_operations pas_midi_operations =
-{
- {"Pro Audio Spectrum", 0, 0, SNDCARD_PAS},
- &std_midi_synth,
- {0},
- pas_midi_open,
- pas_midi_close,
- pas_midi_ioctl,
- pas_midi_out,
- pas_midi_start_read,
- pas_midi_end_read,
- pas_midi_kick,
- NULL, /* command */
- pas_buffer_status,
- NULL
-};
-
-void
-pas_midi_init()
-{
- if (num_midis >= MAX_MIDI_DEV) {
- printf("Sound: Too many midi devices detected\n");
- return;
- }
- std_midi_synth.midi_dev = my_dev = num_midis;
- midi_devs[num_midis++] = &pas_midi_operations;
- return;
-}
-
-void
-pas_midi_interrupt(void)
-{
- u_char stat;
- int i, incount;
- u_long flags;
-
- stat = pas_read(MIDI_STATUS);
-
- if (stat & M_S_INPUT_AVAIL) { /* Input byte available */
- incount = pas_read(MIDI_FIFO_STATUS) & 0x0f; /* Input FIFO count */
- if (!incount)
- incount = 16;
-
- for (i = 0; i < incount; i++)
- if (input_opened) {
- midi_input_intr(my_dev, pas_read(MIDI_DATA));
- } else
- pas_read(MIDI_DATA); /* Flush */
- }
- if (stat & (M_S_OUTPUT_EMPTY | M_S_OUTPUT_HALF_EMPTY)) {
- if (!(stat & M_S_OUTPUT_EMPTY)) {
- ofifo_bytes = 8;
- } else {
- ofifo_bytes = 0;
- }
-
- flags = splhigh();
-
- while (qlen && dump_to_midi(tmp_queue[qhead])) {
- qlen--;
- qhead++;
- }
-
- splx(flags);
- }
- if (stat & M_S_OUTPUT_OVERRUN) {
- printf("MIDI output overrun %x,%x,%d \n", pas_read(MIDI_FIFO_STATUS), stat, ofifo_bytes);
- ofifo_bytes = 100;
- }
- pas_write(stat, MIDI_STATUS); /* Acknowledge interrupts */
-}
-
-#endif
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